After running filter-branch, move root directory into sky/
diff --git a/packages/flutter/.gitignore b/packages/flutter/.gitignore
new file mode 100644
index 0000000..c04bbfa
--- /dev/null
+++ b/packages/flutter/.gitignore
@@ -0,0 +1,5 @@
+.idea
+.pub/
+lib/_sdkext
+packages
+pubspec.lock
diff --git a/packages/flutter/BUILD.gn b/packages/flutter/BUILD.gn
new file mode 100644
index 0000000..1e756f2
--- /dev/null
+++ b/packages/flutter/BUILD.gn
@@ -0,0 +1,156 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//mojo/public/dart/rules.gni")
+
+dart_pkg("sky") {
+ sources = [
+ "CHANGELOG.md",
+ "bin/init.dart",
+ "lib/animation/animated_simulation.dart",
+ "lib/animation/animation_performance.dart",
+ "lib/animation/curves.dart",
+ "lib/animation/scroll_behavior.dart",
+ "lib/animation/timeline.dart",
+ "lib/assets/.gitignore",
+ "lib/assets/material-design-icons.sha1",
+ "lib/base/debug.dart",
+ "lib/base/hit_test.dart",
+ "lib/base/lerp.dart",
+ "lib/base/node.dart",
+ "lib/base/scheduler.dart",
+ "lib/download_material_design_icons",
+ "lib/editing/editable_string.dart",
+ "lib/editing/editable_text.dart",
+ "lib/editing/input.dart",
+ "lib/mojo/activity.dart",
+ "lib/mojo/asset_bundle.dart",
+ "lib/mojo/embedder.dart",
+ "lib/mojo/keyboard.dart",
+ "lib/mojo/net/fetch.dart",
+ "lib/mojo/net/image_cache.dart",
+ "lib/mojo/shell.dart",
+ "lib/painting/box_painter.dart",
+ "lib/painting/shadows.dart",
+ "lib/painting/text_style.dart",
+ "lib/rendering/auto_layout.dart",
+ "lib/rendering/block.dart",
+ "lib/rendering/box.dart",
+ "lib/rendering/flex.dart",
+ "lib/rendering/object.dart",
+ "lib/rendering/paragraph.dart",
+ "lib/rendering/sky_binding.dart",
+ "lib/rendering/stack.dart",
+ "lib/sky_tool",
+ "lib/theme/colors.dart",
+ "lib/theme/shadows.dart",
+ "lib/theme/theme_data.dart",
+ "lib/theme/typography.dart",
+ "lib/theme/view_configuration.dart",
+ "lib/widgets/animated_component.dart",
+ "lib/widgets/animation_builder.dart",
+ "lib/widgets/basic.dart",
+ "lib/widgets/block_viewport.dart",
+ "lib/widgets/button_base.dart",
+ "lib/widgets/card.dart",
+ "lib/widgets/checkbox.dart",
+ "lib/widgets/default_text_style.dart",
+ "lib/widgets/dialog.dart",
+ "lib/widgets/dismissable.dart",
+ "lib/widgets/drawer.dart",
+ "lib/widgets/drawer_divider.dart",
+ "lib/widgets/drawer_header.dart",
+ "lib/widgets/drawer_item.dart",
+ "lib/widgets/fixed_height_scrollable.dart",
+ "lib/widgets/flat_button.dart",
+ "lib/widgets/floating_action_button.dart",
+ "lib/widgets/icon.dart",
+ "lib/widgets/icon_button.dart",
+ "lib/widgets/ink_well.dart",
+ "lib/widgets/material.dart",
+ "lib/widgets/material_button.dart",
+ "lib/widgets/modal_overlay.dart",
+ "lib/widgets/navigator.dart",
+ "lib/widgets/popup_menu.dart",
+ "lib/widgets/popup_menu_item.dart",
+ "lib/widgets/radio.dart",
+ "lib/widgets/raised_button.dart",
+ "lib/widgets/scaffold.dart",
+ "lib/widgets/scrollable.dart",
+ "lib/widgets/scrollable_list.dart",
+ "lib/widgets/scrollable_viewport.dart",
+ "lib/widgets/snack_bar.dart",
+ "lib/widgets/switch.dart",
+ "lib/widgets/tabs.dart",
+ "lib/widgets/task_description.dart",
+ "lib/widgets/theme.dart",
+ "lib/widgets/toggleable.dart",
+ "lib/widgets/tool_bar.dart",
+ "lib/widgets/variable_height_scrollable.dart",
+ "lib/widgets/widget.dart",
+ "pubspec.yaml",
+ ]
+
+ # List of mojom targets that the sky pkg exports
+ deps = [
+ "//mojo/services/asset_bundle/public/interfaces",
+ "//mojo/services/keyboard/public/interfaces",
+ "//sky/services/activity:interfaces",
+ "//sky/services/engine:interfaces",
+ ]
+
+ datadeps = [
+ "//mojo/dart/mojo_services",
+ "//mojo/dart/mojom",
+ "//mojo/public/dart:mojo",
+ "//sky/engine/bindings",
+ "//sky/services/testing:interfaces",
+ "//sky/services/media:interfaces",
+ "//third_party/dart-pkg",
+ ]
+
+ sdk_ext_directory = "$root_gen_dir/sky/bindings"
+ sdk_ext_files = [
+ "//sky/engine/bindings/sky_internals.dart",
+ "//sky/engine/bindings/builtin_natives.dart",
+ ]
+ sdk_ext_mappings = [
+ "dart:sky,dart_sky.dart",
+ "dart:sky.internals,sky_internals.dart",
+ "dart:sky_builtin_natvies,builtin_natives.dart",
+ ]
+}
+
+action("material_design_icons") {
+ input_dir = "lib/assets/material-design-icons"
+ output_dir = "$root_gen_dir/dart-pkg/sky/lib/assets"
+ stamp = "$target_gen_dir/material_design_icons_linked"
+
+ sources = [
+ "lib/assets/material-design-icons.sha1",
+ ]
+ outputs = [
+ stamp,
+ ]
+
+ script = "//build/symlink.py"
+ args = [
+ "--force",
+ rebase_path(input_dir, output_dir),
+ rebase_path(output_dir, root_build_dir),
+ "--touch",
+ rebase_path(stamp, root_build_dir),
+ ]
+
+ deps = [
+ ":sky",
+ ]
+}
+
+group("sdk") {
+ deps = [
+ ":sky",
+ ":material_design_icons",
+ ]
+}
diff --git a/packages/flutter/CHANGELOG.md b/packages/flutter/CHANGELOG.md
new file mode 100644
index 0000000..8fab2cb
--- /dev/null
+++ b/packages/flutter/CHANGELOG.md
@@ -0,0 +1,77 @@
+## 0.0.18
+
+ - 41 changes: https://github.com/domokit/mojo/compare/246e279...c3119f6
+
+## 0.0.17
+
+ - 18 changes: https://github.com/domokit/mojo/compare/e7433cf...8879bfd
+
+## 0.0.16
+
+ - 27 changes: https://github.com/domokit/mojo/compare/e028733...e7433cf
+
+## 0.0.15
+
+ - 6 changes: https://github.com/domokit/mojo/compare/4df2d39...e028733
+
+## 0.0.14
+
+ - 42 changes: https://github.com/domokit/mojo/compare/3de9766...cf84c48
+
+## 0.0.13
+
+ - 70 changes: https://github.com/domokit/mojo/compare/889091e...136e0d4
+
+## 0.0.12
+
+ - 29 changes: https://github.com/domokit/mojo/compare/e25e3e2...432ce45
+ - Fixed sky_tool to work again.
+
+## 0.0.11
+
+ - 197 changes: https://github.com/domokit/mojo/compare/bdbb0c7...fb1b726
+
+## 0.0.10
+
+ - 23 changes: https://github.com/domokit/mojo/compare/1b7bcee...be9dad7
+
+## 0.0.8
+
+ - Fix 2 crashes in SkyDemo.apk, updated widgets. 0.0.7 was skipped.
+
+## 0.0.6
+
+ - First release after Dart summit. Adds new main.dart based workflow.
+
+## 0.0.5+dart-summit-7
+
+ - Fix crash in sky_tool stop_tracing.
+
+## 0.0.5+dart-summit-6
+
+ - Fix missing include in sky_tool causing failure.
+
+## 0.0.5+dart-summit-5
+
+ - Added sky_tool start_tracing and stop_tracing.
+
+## 0.0.5+dart-summit-4
+
+ - Added download_material_design_icons script.
+
+## 0.0.5+dart-summit-3
+
+ - Fix typo in lib/sky_tool causing syntax error when run.
+
+## 0.0.5+dart-summit-2
+
+ - Various demo fixes and added ChangeLogs.
+
+## 0.0.5+dart-summit-1
+
+ - Branched from mojo trunk to stabalize for Dart summit.
+
+## 0.0.2
+
+ - sdk_additions now includes previously missing imports.
+ - added lib/sky_tool, and supporting apks/SkyDemo.apk
diff --git a/packages/flutter/README.md b/packages/flutter/README.md
new file mode 100644
index 0000000..fbdfb77
--- /dev/null
+++ b/packages/flutter/README.md
@@ -0,0 +1,217 @@
+Contributing
+============
+
+[sky_sdk](https://github.com/domokit/sky_sdk) is generated from the
+[mojo repository](https://github.com/domokit/mojo) using
+[deploy_sdk.py](https://github.com/domokit/mojo/blob/master/sky/tools/deploy_sdk.py)
+Static files (including this README.md) are located under
+[sky/sdk](https://github.com/domokit/mojo/tree/master/sky/sdk). Pull
+requests and issue reports are glady accepted at the
+[mojo repository](https://github.com/domokit/mojo)!
+
+Sky
+===
+
+Sky is an experimental, high-performance UI framework for mobile apps. Sky helps
+you create apps with beautiful user interfaces and high-quality interactive
+design that run smoothly at 120 Hz.
+
+Sky consists of two components:
+
+1. *The Sky engine.* The engine is the core of the system. Written in C++, the
+ engine provides the muscle of the Sky system. The engine provides
+ several primitives, including a soft real-time scheduler and a hierarchical,
+ retained-mode graphics system, that let you build high-quality apps.
+
+2. *The Sky framework.* The [framework](packages/sky/lib/framework) makes it
+ easy to build apps using Sky by providing familiar user interface widgets,
+ such as buttons, infinite lists, and animations, on top of the engine using
+ Dart. These extensible components follow a functional programming style
+ inspired by [React](http://facebook.github.io/react/).
+
+We're still iterating on Sky heavily, which means the framework and underlying
+engine are both likely to change in incompatible ways several times, but if
+you're interested in trying out the system, this document can help you get
+started.
+
+Examples
+--------
+
+Sky uses Dart and Sky applications are
+[Dart Packages](https://www.dartlang.org/docs/tutorials/shared-pkgs/).
+Application creation starts by creating a new directory and
+adding a [pubspec.yaml](https://www.dartlang.org/tools/pub/pubspec.html):
+
+ pubspec.yaml for your app:
+```yaml
+name: your_app_name
+dependencies:
+ sky: any
+```
+
+Once the pubspec is in place, create a `lib` directory (where your dart code
+will go), ensure that the 'dart' and 'pub' executables are on your $PATH and
+run the following:
+
+`pub get && pub run sky:init`.
+
+Currently the Sky Engine assumes the entry point for your application is a
+`main` function in a Dart file inside your package:
+
+```dart
+import 'package:sky/widgets/basic.dart';
+
+class HelloWorldApp extends App {
+ Widget build() {
+ return new Text('Hello, world!');
+ }
+}
+
+void main() {
+ runApp(new HelloWorldApp());
+}
+```
+
+Execution starts in `main`, which instructs the framework to run a new
+instance of the `HelloWorldApp`. The framework then calls the `build()`
+function on `HelloWorldApp` to create a tree of widgets, some of which might
+be other `Components`, which in turn have `build()` functions that generate
+more widgets iteratively to create the widget hierarchy.
+
+Later, if a `Component` changes state, the framework calls that component's
+`build()` function again to create a new widget tree. The framework diffs the
+new widget tree against the old widget tree and any differences are applyed
+to the underlying render tree.
+
+ * To learn more about the widget system, please see the
+ [widgets tutorial](lib/widgets/README.md).
+ * To learn how to run Sky on your device, please see the
+ [Running a Sky application](#running-a-sky-application) section in this
+ document.
+ * To dive into examples, please see the [examples directory](example/).
+
+Services
+--------
+
+Sky apps can access services from the host operating system using Mojo IPC. For
+example, you can access the network using the `network_service.mojom` interface.
+Although you can use these low-level interfaces directly, you might prefer to
+access these services via libraries in the framework. For example, the
+`fetch.dart` library wraps the underlying `network_service.mojom` in an
+ergonomic interface:
+
+```dart
+import 'package:sky/mojo/net/fetch.dart';
+
+main() async {
+ Response response = await fetchBody('example.txt');
+ print(response.bodyAsString());
+}
+```
+
+Set up your computer
+--------------------
+
+1. Install the Dart SDK:
+ - https://www.dartlang.org/tools/download.html
+
+2. Install the `adb` tool from the Android SDK:
+ - https://developer.android.com/sdk/installing/index.html
+
+3. Install the Sky SDK:
+ - `git clone https://github.com/domokit/sky_sdk.git`
+
+4. Ensure that `$DART_SDK` is set to the path of your Dart SDK and `adb`
+ (inside `platform-tools` in the android sdk) is in your `$PATH`.
+
+Set up your device
+------------------
+
+Currently Sky requires an Android device running the Lollipop (or newer) version
+of the Android operating system.
+
+1. Enable developer mode on your device by visiting `Settings > About phone`
+ and tapping the `Build number` field five times.
+
+2. Enable `USB debugging` in `Settings > Developer options`.
+
+3. Using a USB cable, plug your phone into your computer. If prompted on your
+ device, authorize your computer to access your device.
+
+Running a Sky application
+-------------------------
+
+The `sky` pub package includes a `sky_tool` script to assist in running
+Sky applications inside the `SkyDemo.apk` harness. The `sky_tool` script
+expects to be run from the root directory of your application pub package. To
+run one of the examples in this SDK, try:
+
+1. `cd example/stocks`
+
+2. `pub get` to set up a copy of the sky package in the app directory.
+
+3. `./packages/sky/sky_tool start` to start the dev server and upload your
+ app to the device.
+ (NOTE: add a `--install` flag to install `SkyDemo.apk` if it is not already
+ installed on the device.)
+
+4. Use `adb logcat` to view any errors or Dart `print()` output from the app.
+ `adb logcat -s chromium` can be used to filter only adb messages from
+ `SkyDemo.apk` (which for
+ [legacy reasons](https://github.com/domokit/mojo/issues/129) still uses the
+ android log tag `chromium`).
+
+Measuring Performance
+---------------------
+
+Sky has support for generating trace files compatible with
+[Chrome's about:tracing](https://www.chromium.org/developers/how-tos/trace-event-profiling-tool).
+
+`packages/sky/sky_tool start_tracing` and `packages/sky/sky_tool stop_tracing`
+are the commands to use.
+
+Due to https://github.com/domokit/mojo/issues/127 tracing currently
+requires root access on the device.
+
+Debugging
+---------
+
+Sky uses [Observatory](https://www.dartlang.org/tools/observatory/) for
+debugging and profiling. While running your Sky app using `sky_tool`, you can
+access Observatory by navigating your web browser to http://localhost:8181/.
+
+Building a standalone MyApp
+---------------------------
+
+Although it is possible to bundle the Sky Engine in your own app (instead of
+running your code inside SkyDemo.apk), right now doing so is difficult.
+
+There is one example of doing so if you're feeling brave:
+https://github.com/domokit/mojo/tree/master/sky/sdk/example/stocks
+
+Eventually we plan to make this much easier and support platforms other than
+Android, but that work is yet in progress.
+
+Adding Services to MyApp
+------------------------
+
+[Mojo IPC](https://github.com/domokit/mojo) is an inter-process-communication
+system designed to provide cross-thread, cross-process, and language-agnostic
+communication between applications. Sky uses Mojo IPC to make it possible
+to write UI code in Dart and yet depend on networking code, etc. written in
+another language. Services are replicable, meaning that Dart code
+written to use the `network_service` remains portable to any platform
+(iOS, Android, etc.) by simply providing a 'natively' written `network_service`.
+
+Embedders of the Sky Engine and consumers of the Sky Framework can use this
+same mechanism to expose not only existing services like the
+[Keyboard](https://github.com/domokit/mojo/blob/master/mojo/services/keyboard/public/interfaces/keyboard.mojom)
+service to allow Sky Framework Dart code to interface with the underlying
+platform's Keyboard, but also to expose any additional non-Dart business logic
+to Sky/Dart UI code.
+
+As an example, [SkyApplication](https://github.com/domokit/mojo/blob/master/sky/shell/org/domokit/sky/shell/SkyApplication.java)
+exposes a mojo `network_service` (required by Sky Engine C++ code)
+[SkyDemoApplication](https://github.com/domokit/mojo/blob/master/sky/apk/demo/org/domokit/sky/demo/SkyDemoApplication.java)
+additionally exposes `keyboard_service` and `sensor_service` for use by the Sky
+Framework from Dart.
diff --git a/packages/flutter/bin/init.dart b/packages/flutter/bin/init.dart
new file mode 100644
index 0000000..7616fec
--- /dev/null
+++ b/packages/flutter/bin/init.dart
@@ -0,0 +1,17 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/*
+* This script should be invoked via 'pub run' after 'pub get':
+* $ pub run sky:init
+* NOTE: The 'dart' executable must be on your $PATH for this script to work.
+*/
+
+import 'dart:io';
+
+main(List<String> arguments) {
+ ProcessResult result = Process.runSync('dart', ['-p', 'packages', 'packages/mojom/generate.dart']);
+ stdout.write(result.stdout);
+ stderr.write(result.stderr);
+}
diff --git a/packages/flutter/example/BUILD.gn b/packages/flutter/example/BUILD.gn
new file mode 100644
index 0000000..7e71cb1
--- /dev/null
+++ b/packages/flutter/example/BUILD.gn
@@ -0,0 +1,16 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+group("example") {
+ testonly = true
+
+ deps = [
+ "//sky/sdk/example/demo_launcher",
+ "//sky/sdk/example/game",
+ "//sky/sdk/example/mine_digger",
+ "//sky/sdk/example/rendering",
+ "//sky/sdk/example/stocks",
+ "//sky/sdk/example/widgets",
+ ]
+}
diff --git a/packages/flutter/example/README.md b/packages/flutter/example/README.md
new file mode 100644
index 0000000..deb0f3c
--- /dev/null
+++ b/packages/flutter/example/README.md
@@ -0,0 +1,16 @@
+Sky Examples
+============
+
+This directory contains several examples of using Sky. Each of these is an
+individual Dart application package. If you wish to run them with `sky_tool`
+then you will want to run `pub get` inside their directory before running
+`./packages/sky/sky_tool start`.
+
+1. *Hello, world.* The [hello world app](hello_world) is a basic app that shows
+ the text "hello, world."
+
+2. *Stocks.* The [stocks app](stocks) is an example of a typical mobile app
+ built using Sky. The app shows a list of all the stocks in the NASDAQ.
+
+3. *Widgets.* The [widgets app](widgets) contains a number of Sky widgets so
+ you can experiment with them in a simple container.
diff --git a/packages/flutter/example/address_book/lib/main.dart b/packages/flutter/example/address_book/lib/main.dart
new file mode 100644
index 0000000..d16a29e
--- /dev/null
+++ b/packages/flutter/example/address_book/lib/main.dart
@@ -0,0 +1,106 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/theme/typography.dart' as typography;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/default_text_style.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/widget.dart';
+import 'package:sky/widgets/task_description.dart';
+import 'package:sky/widgets/scaffold.dart';
+import 'package:sky/widgets/tool_bar.dart';
+import 'package:sky/widgets/icon_button.dart';
+import 'package:sky/widgets/floating_action_button.dart';
+import 'package:sky/widgets/icon.dart';
+import 'package:sky/widgets/material.dart';
+import 'package:sky/editing/input.dart';
+import 'package:sky/widgets/scrollable_viewport.dart';
+
+class Field extends Component {
+ Field({this.icon: null, this.placeholder: null});
+
+ String icon;
+ String placeholder;
+
+ Widget build() {
+ return new Flex([
+ new Padding(
+ padding: const EdgeDims.symmetric(horizontal: 16.0),
+ child: new Icon(type:icon, size:24)
+ ),
+ new Flexible(child:new Input(placeholder:placeholder, focused:false))
+ ],
+ direction: FlexDirection.horizontal
+ );
+ }
+}
+
+class AddressBookApp extends App {
+
+ Widget buildToolBar() {
+ return new ToolBar(
+ left: new IconButton(icon: "navigation/arrow_back"),
+ right: [new IconButton(icon: "navigation/check")]
+ );
+ }
+
+ Widget buildFloatingActionButton() {
+ return new FloatingActionButton(
+ child: new Icon(type: 'image/photo_camera', size: 24),
+ backgroundColor: Theme.of(this).accentColor
+ );
+ }
+
+ Widget buildBody() {
+ return new Material(
+ child: new ScrollableBlock([
+ new AspectRatio(
+ aspectRatio: 16.0 / 9.0,
+ child: new Container(
+ decoration: new BoxDecoration(backgroundColor: colors.Purple[300])
+ )
+ ),
+ new Field(icon:"social/person", placeholder:"Name"),
+ new Field(icon: "communication/phone", placeholder:"Phone"),
+ new Field(icon: "communication/email", placeholder:"Email"),
+ new Field(icon: "maps/place", placeholder:"Address"),
+ new Field(icon: "av/volume_up", placeholder:"Ringtone"),
+ new Field(icon: "content/add", placeholder:"Add note"),
+ ])
+ );
+ }
+
+ Widget buildMain() {
+ return new Scaffold(
+ toolbar: buildToolBar(),
+ body: buildBody(),
+ floatingActionButton: buildFloatingActionButton()
+ );
+ }
+
+ Widget build() {
+
+ ThemeData theme = new ThemeData(
+ brightness: ThemeBrightness.light,
+ primarySwatch: colors.Teal,
+ accentColor: colors.PinkAccent[100]
+ );
+
+ return new Theme(
+ data: theme,
+ child: new DefaultTextStyle(
+ style: typography.error, // if you see this, you've forgotten to correctly configure the text style!
+ child: new TaskDescription(
+ label: 'Address Book',
+ child: buildMain()
+ )
+ )
+ );
+ }
+}
+
+void main() {
+ runApp(new AddressBookApp());
+}
diff --git a/packages/flutter/example/demo_launcher/BUILD.gn b/packages/flutter/example/demo_launcher/BUILD.gn
new file mode 100644
index 0000000..bb5886d
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/BUILD.gn
@@ -0,0 +1,28 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//sky/build/sky_app.gni")
+
+sky_app("demo_launcher") {
+ main_dart = "lib/main.dart"
+ manifest = "sky.yaml"
+
+ if (is_android) {
+ apk_name = "SkyDemo"
+
+ bundles = [
+ "//sky/sdk/example/fitness",
+ "//sky/sdk/example/game",
+ "//sky/sdk/example/mine_digger",
+ "//sky/sdk/example/rendering:interactive_flex",
+ "//sky/sdk/example/stocks",
+ "//sky/sdk/example/widgets:cards",
+ ]
+
+ deps = [
+ "//sky/sdk/example/demo_launcher/apk:java",
+ "//sky/sdk/example/demo_launcher/apk:resources",
+ ]
+ }
+}
diff --git a/packages/flutter/example/demo_launcher/apk/AndroidManifest.xml b/packages/flutter/example/demo_launcher/apk/AndroidManifest.xml
new file mode 100644
index 0000000..fa16163
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/apk/AndroidManifest.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2015 The Chromium Authors. All rights reserved.
+ Use of this source code is governed by a BSD-style license that can be
+ found in the LICENSE file.
+ -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="org.domokit.sky.demo" android:versionCode="18" android:versionName="0.0.18">
+
+ <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />
+ <uses-permission android:name="android.permission.INTERNET" />
+ <uses-feature android:name="android.hardware.sensor.accelerometer" android:required="true" />
+
+ <application android:icon="@mipmap/ic_launcher" android:label="Sky" android:name="SkyDemoApplication">
+ <activity android:configChanges="orientation|keyboardHidden|keyboard|screenSize" android:documentLaunchMode="always" android:hardwareAccelerated="true" android:launchMode="standard" android:name="SkyDemoActivity" android:theme="@android:style/Theme.Black.NoTitleBar">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN" />
+ <category android:name="android.intent.category.LAUNCHER" />
+ </intent-filter>
+ </activity>
+ </application>
+ </manifest>
diff --git a/packages/flutter/example/demo_launcher/apk/BUILD.gn b/packages/flutter/example/demo_launcher/apk/BUILD.gn
new file mode 100644
index 0000000..4d2443e
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/apk/BUILD.gn
@@ -0,0 +1,31 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+assert(is_android)
+
+import("//build/config/android/config.gni")
+import("//build/config/android/rules.gni")
+
+android_library("java") {
+ java_files = [
+ "org/domokit/sky/demo/SkyDemoActivity.java",
+ "org/domokit/sky/demo/SkyDemoApplication.java",
+ ]
+
+ deps = [
+ "//base:base_java",
+ "//mojo/public/java:bindings",
+ "//mojo/public/java:system",
+ "//mojo/services/sensors/public/interfaces:interfaces_java",
+ "//services/sensors:sensors_lib",
+ "//sky/services/media:media_lib",
+ "//sky/services/media:interfaces_java",
+ "//sky/shell:java",
+ ]
+}
+
+android_resources("resources") {
+ resource_dirs = [ "res" ]
+ android_manifest = "AndroidManifest.xml"
+}
diff --git a/packages/flutter/example/demo_launcher/apk/README.md b/packages/flutter/example/demo_launcher/apk/README.md
new file mode 100644
index 0000000..0e6adf9
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/apk/README.md
@@ -0,0 +1,6 @@
+Icon image comes from:
+https://openclipart.org/detail/30073/tango%20weather%20few%20clouds
+and is public domain.
+
+Icon resources were generated using:
+http://romannurik.github.io/AndroidAssetStudio/icons-launcher.html
diff --git a/packages/flutter/example/demo_launcher/apk/org/domokit/sky/demo/SkyDemoActivity.java b/packages/flutter/example/demo_launcher/apk/org/domokit/sky/demo/SkyDemoActivity.java
new file mode 100644
index 0000000..ad97c69
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/apk/org/domokit/sky/demo/SkyDemoActivity.java
@@ -0,0 +1,31 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.domokit.sky.demo;
+
+import android.content.Intent;
+
+import org.domokit.sky.shell.SkyActivity;
+
+/**
+ * Main activity for SkyDemo.
+ */
+public class SkyDemoActivity extends SkyActivity {
+ @Override
+ protected void onSkyReady() {
+ Intent intent = getIntent();
+ String action = intent.getAction();
+
+ if (Intent.ACTION_VIEW.equals(action)) {
+ String bundleName = intent.getStringExtra("bundleName");
+ if (bundleName != null && loadBundleByName(bundleName)) {
+ return;
+ }
+ loadUrl(intent.getDataString());
+ return;
+ }
+
+ super.onSkyReady();
+ }
+}
diff --git a/packages/flutter/example/demo_launcher/apk/org/domokit/sky/demo/SkyDemoApplication.java b/packages/flutter/example/demo_launcher/apk/org/domokit/sky/demo/SkyDemoApplication.java
new file mode 100644
index 0000000..c5f6085
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/apk/org/domokit/sky/demo/SkyDemoApplication.java
@@ -0,0 +1,57 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.domokit.sky.demo;
+
+import android.content.Context;
+
+import org.chromium.mojo.sensors.SensorServiceImpl;
+import org.chromium.mojo.system.Core;
+import org.chromium.mojo.system.MessagePipeHandle;
+import org.chromium.mojom.media.MediaService;
+import org.chromium.mojom.sensors.SensorService;
+import org.domokit.media.MediaServiceImpl;
+import org.domokit.sky.shell.ResourceExtractor;
+import org.domokit.sky.shell.ServiceFactory;
+import org.domokit.sky.shell.ServiceRegistry;
+import org.domokit.sky.shell.SkyApplication;
+
+/**
+ * SkyDemo implementation of {@link android.app.Application}
+ */
+public class SkyDemoApplication extends SkyApplication {
+ private static final String[] DEMO_RESOURCES = {
+ "cards.skyx",
+ "fitness.skyx",
+ "game.skyx",
+ "interactive_flex.skyx",
+ "mine_digger.skyx",
+ "stocks.skyx",
+ };
+
+ @Override
+ protected void onBeforeResourceExtraction(ResourceExtractor extractor) {
+ super.onBeforeResourceExtraction(extractor);
+ extractor.addResources(DEMO_RESOURCES);
+ }
+
+ @Override
+ public void onServiceRegistryAvailable(ServiceRegistry registry) {
+ super.onServiceRegistryAvailable(registry);
+
+ registry.register(SensorService.MANAGER.getName(), new ServiceFactory() {
+ @Override
+ public void connectToService(Context context, Core core, MessagePipeHandle pipe) {
+ SensorService.MANAGER.bind(new SensorServiceImpl(context), pipe);
+ }
+ });
+
+ registry.register(MediaService.MANAGER.getName(), new ServiceFactory() {
+ @Override
+ public void connectToService(Context context, Core core, MessagePipeHandle pipe) {
+ MediaService.MANAGER.bind(new MediaServiceImpl(context, core), pipe);
+ }
+ });
+ }
+}
diff --git a/packages/flutter/example/demo_launcher/apk/release_notes/0.0.18.txt b/packages/flutter/example/demo_launcher/apk/release_notes/0.0.18.txt
new file mode 100644
index 0000000..023b7f6
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/apk/release_notes/0.0.18.txt
@@ -0,0 +1 @@
+First version published to production from our service account.
\ No newline at end of file
diff --git a/packages/flutter/example/demo_launcher/apk/res/mipmap-hdpi/ic_launcher.png b/packages/flutter/example/demo_launcher/apk/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..b34d811
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/apk/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/packages/flutter/example/demo_launcher/apk/res/mipmap-mdpi/ic_launcher.png b/packages/flutter/example/demo_launcher/apk/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..7c42388
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/apk/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/packages/flutter/example/demo_launcher/apk/res/mipmap-xhdpi/ic_launcher.png b/packages/flutter/example/demo_launcher/apk/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..d57d68c
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/apk/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/packages/flutter/example/demo_launcher/apk/res/mipmap-xxhdpi/ic_launcher.png b/packages/flutter/example/demo_launcher/apk/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..ba3f800
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/apk/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/packages/flutter/example/demo_launcher/apk/res/mipmap-xxxhdpi/ic_launcher.png b/packages/flutter/example/demo_launcher/apk/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..8c4b368
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/apk/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/packages/flutter/example/demo_launcher/assets/game_thumbnail.png b/packages/flutter/example/demo_launcher/assets/game_thumbnail.png
new file mode 100644
index 0000000..e1cec9d
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/assets/game_thumbnail.png
Binary files differ
diff --git a/packages/flutter/example/demo_launcher/assets/sector_thumbnail.png b/packages/flutter/example/demo_launcher/assets/sector_thumbnail.png
new file mode 100644
index 0000000..142e665
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/assets/sector_thumbnail.png
Binary files differ
diff --git a/packages/flutter/example/demo_launcher/assets/stocks_thumbnail.png b/packages/flutter/example/demo_launcher/assets/stocks_thumbnail.png
new file mode 100644
index 0000000..327708c
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/assets/stocks_thumbnail.png
Binary files differ
diff --git a/packages/flutter/example/demo_launcher/lib/main.dart b/packages/flutter/example/demo_launcher/lib/main.dart
new file mode 100644
index 0000000..c8cfed8
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/lib/main.dart
@@ -0,0 +1,206 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/mojo/activity.dart' as activity;
+import 'package:sky/mojo/asset_bundle.dart';
+import 'package:sky/painting/box_painter.dart';
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/theme/typography.dart' as typography;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/card.dart';
+import 'package:sky/widgets/material.dart';
+import 'package:sky/widgets/scaffold.dart';
+import 'package:sky/widgets/task_description.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/tool_bar.dart';
+import 'package:sky/widgets/scrollable_list.dart';
+import 'package:sky/widgets/ink_well.dart';
+
+AssetBundle _initBundle() {
+ if (rootBundle != null)
+ return rootBundle;
+ const String _kAssetBase = '..';
+ return new NetworkAssetBundle(Uri.base.resolve(_kAssetBase));
+}
+
+final AssetBundle _bundle = _initBundle();
+
+void launch(String relativeUrl, String bundle) {
+ // TODO(eseidel): This is a hack to keep non-skyx examples working for now:
+ Uri productionBase = Uri.parse(
+ 'https://domokit.github.io/example/demo_launcher/lib/main.dart');
+ Uri base = rootBundle == null ? Uri.base : productionBase;
+ Uri url = base.resolve(relativeUrl);
+
+ activity.ComponentName component = new activity.ComponentName()
+ ..packageName = 'org.domokit.sky.demo'
+ ..className = 'org.domokit.sky.demo.SkyDemoActivity';
+ activity.Intent intent = new activity.Intent()
+ ..action = 'android.intent.action.VIEW'
+ ..component = component
+ ..flags = activity.MULTIPLE_TASK | activity.NEW_DOCUMENT
+ ..url = url.toString();
+
+ if (bundle != null) {
+ activity.StringExtra extra = new activity.StringExtra()
+ ..name = 'bundleName'
+ ..value = bundle;
+ intent.stringExtras = [extra];
+ }
+
+ activity.startActivity(intent);
+}
+
+class SkyDemo {
+ String name;
+ String href;
+ String bundle;
+ String description;
+ typography.TextTheme textTheme;
+ BoxDecoration decoration;
+ SkyDemo({ this.name, this.href, this.bundle, this.description, this.textTheme, this.decoration });
+}
+
+List<SkyDemo> demos = [
+ new SkyDemo(
+ name: 'Stocks',
+ href: '../../stocks/lib/main.dart',
+ bundle: 'stocks.skyx',
+ description: 'Multi-screen app with scrolling list',
+ textTheme: typography.black,
+ decoration: new BoxDecoration(
+ backgroundImage: new BackgroundImage(
+ image: _bundle.loadImage('assets/stocks_thumbnail.png'),
+ fit: BackgroundFit.cover
+ )
+ )
+ ),
+ new SkyDemo(
+ name: 'Asteroids',
+ href: '../../game/main.dart',
+ bundle: 'game.skyx',
+ description: '2D game using sprite sheets to achieve high performance',
+ textTheme: typography.white,
+ decoration: new BoxDecoration(
+ backgroundImage: new BackgroundImage(
+ image: _bundle.loadImage('assets/game_thumbnail.png'),
+ fit: BackgroundFit.cover
+ )
+ )
+ ),
+ new SkyDemo(
+ name: 'Fitness',
+ href: '../../fitness/lib/main.dart',
+ bundle: 'fitness.skyx',
+ description: 'Collin should write a nice description',
+ textTheme: typography.white,
+ decoration: new BoxDecoration(
+ backgroundColor: const Color(0xFF0081C6)
+ )
+ ),
+ new SkyDemo(
+ name: 'Cards',
+ href: '../../widgets/card_collection.dart',
+ bundle: 'cards.skyx',
+ description: 'Demo of interactive Cards',
+ textTheme: typography.white,
+ decoration: new BoxDecoration(
+ backgroundColor: const Color(0xFF0081C6)
+ )
+ ),
+ new SkyDemo(
+ name: 'Interactive Text',
+ href: '../../rendering/interactive_flex.dart',
+ bundle: 'interactive_flex.skyx',
+ description: 'Swipe to reflow the app',
+ textTheme: typography.white,
+ decoration: new BoxDecoration(
+ backgroundColor: const Color(0xFF0081C6)
+ )
+ ),
+ // new SkyDemo(
+
+ // 'Touch Demo', '../../rendering/touch_demo.dart', 'Simple example showing handling of touch events at a low level'),
+ new SkyDemo(
+ name: 'Minedigger Game',
+ href: '../../mine_digger/lib/main.dart',
+ bundle: 'mine_digger.skyx',
+ description: 'Clone of the classic Minesweeper game',
+ textTheme: typography.white
+ ),
+
+ // TODO(jackson): This doesn't seem to be working
+ // new SkyDemo('Licenses', 'LICENSES.sky'),
+];
+
+const double kCardHeight = 120.0;
+const EdgeDims kListPadding = const EdgeDims.all(4.0);
+
+class DemoList extends Component {
+ Widget buildCardContents(SkyDemo demo) {
+ return new Container(
+ decoration: demo.decoration,
+ child: new InkWell(
+ child: new Container(
+ margin: const EdgeDims.all(24.0),
+ child: new Flex([
+ new Text(demo.name, style: demo.textTheme.title),
+ new Flexible(
+ child: new Text(demo.description, style: demo.textTheme.subhead)
+ )
+ ],
+ direction: FlexDirection.vertical,
+ alignItems: FlexAlignItems.start)
+ )
+ )
+ );
+ }
+
+ Widget buildDemo(SkyDemo demo) {
+ return new Listener(
+ key: demo.name,
+ onGestureTap: (_) => launch(demo.href, demo.bundle),
+ child: new Container(
+ height: kCardHeight,
+ child: new Card(
+ child: buildCardContents(demo)
+ )
+ )
+ );
+ }
+
+ Widget build() {
+ return new ScrollableList<SkyDemo>(
+ items: demos,
+ itemHeight: kCardHeight,
+ itemBuilder: buildDemo,
+ padding: kListPadding
+ );
+ }
+}
+
+class SkyHome extends App {
+ Widget build() {
+ return new Theme(
+ data: new ThemeData(
+ brightness: ThemeBrightness.light,
+ primarySwatch: colors.Teal
+ ),
+ child: new TaskDescription(
+ label: 'Sky Demos',
+ child: new Scaffold(
+ toolbar: new ToolBar(center: new Text('Sky Demos')),
+ body: new Material(
+ type: MaterialType.canvas,
+ child: new DemoList()
+ )
+ )
+ )
+ );
+ }
+}
+
+void main() {
+ runApp(new SkyHome());
+}
diff --git a/packages/flutter/example/demo_launcher/sky.yaml b/packages/flutter/example/demo_launcher/sky.yaml
new file mode 100644
index 0000000..4e78c11
--- /dev/null
+++ b/packages/flutter/example/demo_launcher/sky.yaml
@@ -0,0 +1,4 @@
+assets:
+ - assets/game_thumbnail.png
+ - assets/sector_thumbnail.png
+ - assets/stocks_thumbnail.png
diff --git a/packages/flutter/example/fitness/BUILD.gn b/packages/flutter/example/fitness/BUILD.gn
new file mode 100644
index 0000000..ecbc6d8
--- /dev/null
+++ b/packages/flutter/example/fitness/BUILD.gn
@@ -0,0 +1,13 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+assert(is_android)
+
+import("//sky/build/sky_app.gni")
+
+sky_app("fitness") {
+ apk_name = "Fitness"
+ main_dart = "lib/main.dart"
+ manifest = "sky.yaml"
+}
diff --git a/packages/flutter/example/fitness/apk/AndroidManifest.xml b/packages/flutter/example/fitness/apk/AndroidManifest.xml
new file mode 100644
index 0000000..a473c51
--- /dev/null
+++ b/packages/flutter/example/fitness/apk/AndroidManifest.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2015 The Chromium Authors. All rights reserved.
+ Use of this source code is governed by a BSD-style license that can be
+ found in the LICENSE file.
+ -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="org.domokit.fitness">
+
+ <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />
+ <uses-permission android:name="android.permission.INTERNET"/>
+
+ <application android:name="org.domokit.sky.shell.SkyApplication" android:label="Fitness">
+ <activity android:name="org.domokit.sky.shell.SkyActivity"
+ android:launchMode="singleTask"
+ android:theme="@android:style/Theme.Black.NoTitleBar"
+ android:configChanges="orientation|keyboardHidden|keyboard|screenSize"
+ android:hardwareAccelerated="true">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN"/>
+ <category android:name="android.intent.category.LAUNCHER"/>
+ </intent-filter>
+ </activity>
+ </application>
+ </manifest>
diff --git a/packages/flutter/example/fitness/lib/fitness_types.dart b/packages/flutter/example/fitness/lib/fitness_types.dart
new file mode 100644
index 0000000..0bd3377
--- /dev/null
+++ b/packages/flutter/example/fitness/lib/fitness_types.dart
@@ -0,0 +1,6 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+enum FitnessMode { measure, run }
+enum BackupMode { enabled, disabled }
diff --git a/packages/flutter/example/fitness/lib/home.dart b/packages/flutter/example/fitness/lib/home.dart
new file mode 100644
index 0000000..b0b434d
--- /dev/null
+++ b/packages/flutter/example/fitness/lib/home.dart
@@ -0,0 +1,205 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/drawer.dart';
+import 'package:sky/widgets/drawer_divider.dart';
+import 'package:sky/widgets/drawer_header.dart';
+import 'package:sky/widgets/drawer_item.dart';
+import 'package:sky/widgets/floating_action_button.dart';
+import 'package:sky/widgets/icon_button.dart';
+import 'package:sky/widgets/icon.dart';
+import 'package:sky/widgets/material.dart';
+import 'package:sky/widgets/navigator.dart';
+import 'package:sky/widgets/scaffold.dart';
+import 'package:sky/widgets/snack_bar.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/tool_bar.dart';
+import 'package:sky/widgets/widget.dart';
+
+import 'fitness_types.dart';
+import 'measurement.dart';
+
+class HomeFragment extends StatefulComponent {
+
+ HomeFragment(this.navigator, this.userData);
+
+ Navigator navigator;
+ List<Measurement> userData;
+
+ FitnessMode _fitnessMode = FitnessMode.measure;
+
+ void initState() {
+ // if (debug)
+ // new Timer(new Duration(seconds: 1), dumpState);
+ super.initState();
+ }
+
+ void syncFields(HomeFragment source) {
+ navigator = source.navigator;
+ userData = source.userData;
+ }
+
+ bool _isShowingSnackBar = false;
+ bool _isRunning = false;
+
+ void _handleFitnessModeChange(FitnessMode value) {
+ setState(() {
+ _fitnessMode = value;
+ });
+ }
+
+ Drawer buildDrawer() {
+ if (_drawerStatus == DrawerStatus.inactive)
+ return null;
+ return new Drawer(
+ showing: _drawerShowing,
+ level: 3,
+ onStatusChanged: _handleDrawerStatusChange,
+ navigator: navigator,
+ children: [
+ new DrawerHeader(children: [new Text('Fitness')]),
+ new DrawerItem(
+ icon: 'action/assessment',
+ onPressed: () => _handleFitnessModeChange(FitnessMode.measure),
+ selected: _fitnessMode == FitnessMode.measure,
+ children: [new Text('Measure')]),
+ new DrawerItem(
+ icon: 'maps/directions_run',
+ onPressed: () => _handleFitnessModeChange(FitnessMode.run),
+ selected: _fitnessMode == FitnessMode.run,
+ children: [new Text('Run')]),
+ new DrawerDivider(),
+ new DrawerItem(
+ icon: 'action/settings',
+ onPressed: _handleShowSettings,
+ children: [new Text('Settings')]),
+ new DrawerItem(
+ icon: 'action/help',
+ children: [new Text('Help & Feedback')])
+ ]
+ );
+ }
+
+ bool _drawerShowing = false;
+ DrawerStatus _drawerStatus = DrawerStatus.inactive;
+
+ void _handleOpenDrawer() {
+ setState(() {
+ _drawerShowing = true;
+ _drawerStatus = DrawerStatus.active;
+ });
+ }
+
+ void _handleDrawerStatusChange(DrawerStatus status) {
+ setState(() {
+ _drawerStatus = status;
+ });
+ }
+
+ void _handleShowSettings() {
+ navigator.pop();
+ navigator.pushNamed('/settings');
+ }
+
+ // TODO(jackson): We should be localizing
+ String get fitnessModeTitle {
+ switch(_fitnessMode) {
+ case FitnessMode.measure: return "Measure";
+ case FitnessMode.run: return "Run";
+ }
+ }
+
+ Widget buildToolBar() {
+ return new ToolBar(
+ left: new IconButton(
+ icon: "navigation/menu",
+ onPressed: _handleOpenDrawer),
+ center: new Text(fitnessModeTitle)
+ );
+ }
+
+ Widget buildBody() {
+ TextStyle style = Theme.of(this).text.title;
+ switch (_fitnessMode) {
+ case FitnessMode.measure:
+ return new Material(
+ type: MaterialType.canvas,
+ child: new Flex(
+ [new Text("No measurements yet.\nAdd a new one!", style: style)],
+ justifyContent: FlexJustifyContent.center
+ )
+ );
+ case FitnessMode.run:
+ return new Material(
+ type: MaterialType.canvas,
+ child: new Flex([
+ new Text(_isRunning ? "Go go go!" : "Start a new run!", style: style)
+ ], justifyContent: FlexJustifyContent.center)
+ );
+ }
+ }
+
+ void _handleUndo() {
+ setState(() {
+ _isShowingSnackBar = false;
+ });
+ }
+
+ Widget buildSnackBar() {
+ if (!_isShowingSnackBar)
+ return null;
+ return new SnackBar(
+ content: new Text("Measurement added!"),
+ actions: [new SnackBarAction(label: "UNDO", onPressed: _handleUndo)]
+ );
+ }
+
+ void _handleMeasurementAdded() {
+ setState(() {
+ _isShowingSnackBar = true;
+ });
+ }
+
+ void _handleRunStarted() {
+ setState(() {
+ _isRunning = true;
+ });
+ }
+
+ void _handleRunStopped() {
+ setState(() {
+ _isRunning = false;
+ });
+ }
+
+ Widget buildFloatingActionButton() {
+ switch (_fitnessMode) {
+ case FitnessMode.measure:
+ return new FloatingActionButton(
+ child: new Icon(type: 'content/add', size: 24),
+ onPressed: _handleMeasurementAdded
+ );
+ case FitnessMode.run:
+ return new FloatingActionButton(
+ child: new Icon(
+ type: _isRunning ? 'av/stop' : 'maps/directions_run',
+ size: 24
+ ),
+ onPressed: _isRunning ? _handleRunStopped : _handleRunStarted
+ );
+ }
+ }
+
+ Widget build() {
+ return new Scaffold(
+ toolbar: buildToolBar(),
+ body: buildBody(),
+ snackBar: buildSnackBar(),
+ floatingActionButton: buildFloatingActionButton(),
+ drawer: buildDrawer()
+ );
+ }
+}
diff --git a/packages/flutter/example/fitness/lib/main.dart b/packages/flutter/example/fitness/lib/main.dart
new file mode 100644
index 0000000..7712fed
--- /dev/null
+++ b/packages/flutter/example/fitness/lib/main.dart
@@ -0,0 +1,75 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/navigator.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/widget.dart';
+import 'package:sky/widgets/task_description.dart';
+
+import 'measurement.dart';
+import 'home.dart';
+import 'settings.dart';
+import 'fitness_types.dart';
+
+class FitnessApp extends App {
+
+ NavigationState _navigationState;
+
+ void initState() {
+ _navigationState = new NavigationState([
+ new Route(
+ name: '/',
+ builder: (navigator, route) => new HomeFragment(navigator, _userData)
+ ),
+ new Route(
+ name: '/settings',
+ builder: (navigator, route) => new SettingsFragment(navigator, backupSetting, settingsUpdater)
+ ),
+ ]);
+ super.initState();
+ }
+
+ void onBack() {
+ if (_navigationState.hasPrevious()) {
+ setState(() {
+ _navigationState.pop();
+ });
+ } else {
+ super.onBack();
+ }
+ }
+
+ BackupMode backupSetting = BackupMode.disabled;
+
+ void settingsUpdater({ BackupMode backup }) {
+ setState(() {
+ if (backup != null)
+ backupSetting = backup;
+ });
+ }
+
+ final List<Measurement> _userData = [
+ new Measurement(when: new DateTime.now(), weight: 400.0)
+ ];
+
+ Widget build() {
+ return new Theme(
+ data: new ThemeData(
+ brightness: ThemeBrightness.light,
+ primarySwatch: colors.Indigo,
+ accentColor: colors.PinkAccent[200]
+ ),
+ child: new TaskDescription(
+ label: 'Fitness',
+ child: new Navigator(_navigationState)
+ )
+ );
+ }
+}
+
+void main() {
+ runApp(new FitnessApp());
+}
diff --git a/packages/flutter/example/fitness/lib/measurement.dart b/packages/flutter/example/fitness/lib/measurement.dart
new file mode 100644
index 0000000..cc19865
--- /dev/null
+++ b/packages/flutter/example/fitness/lib/measurement.dart
@@ -0,0 +1,11 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+class Measurement {
+ final DateTime when;
+ final double weight;
+
+ Measurement({ this.when, this.weight });
+}
+
diff --git a/packages/flutter/example/fitness/lib/settings.dart b/packages/flutter/example/fitness/lib/settings.dart
new file mode 100644
index 0000000..51ac6f7
--- /dev/null
+++ b/packages/flutter/example/fitness/lib/settings.dart
@@ -0,0 +1,80 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/drawer_item.dart';
+import 'package:sky/widgets/switch.dart';
+import 'package:sky/widgets/icon_button.dart';
+import 'package:sky/widgets/material.dart';
+import 'package:sky/widgets/navigator.dart';
+import 'package:sky/widgets/scaffold.dart';
+import 'package:sky/widgets/scrollable_viewport.dart';
+import 'package:sky/widgets/tool_bar.dart';
+import 'package:sky/widgets/theme.dart';
+
+import 'fitness_types.dart';
+
+typedef void SettingsUpdater({
+ BackupMode backup
+});
+
+class SettingsFragment extends Component {
+
+ SettingsFragment(this.navigator, this.backup, this.updater);
+
+ final Navigator navigator;
+ final BackupMode backup;
+ final SettingsUpdater updater;
+
+ bool showModeDialog = false;
+
+ void _handleBackupChanged(bool value) {
+ if (updater != null)
+ updater(backup: value ? BackupMode.enabled : BackupMode.disabled);
+ }
+
+ Widget buildToolBar() {
+ return new ToolBar(
+ left: new IconButton(
+ icon: "navigation/arrow_back",
+ onPressed: navigator.pop),
+ center: new Text('Settings')
+ );
+ }
+
+ Widget buildSettingsPane() {
+ return new Material(
+ type: MaterialType.canvas,
+ child: new ScrollableViewport(
+ child: new Container(
+ padding: const EdgeDims.symmetric(vertical: 20.0),
+ child: new Block([
+ new DrawerItem(
+ onPressed: () { _handleBackupChanged(!(backup == BackupMode.enabled)); },
+ children: [
+ new Flexible(child: new Text('Back up data to the cloud')),
+ new Switch(value: backup == BackupMode.enabled, onChanged: _handleBackupChanged)
+ ]
+ ),
+ new DrawerItem(
+ children: [
+ new Flex([
+ new Text('Height'),
+ new Text("6'2\"", style: Theme.of(this).text.caption),
+ ], direction: FlexDirection.vertical, alignItems: FlexAlignItems.start)
+ ]
+ ),
+ ])
+ )
+ )
+ );
+ }
+
+ Widget build() {
+ return new Scaffold(
+ toolbar: buildToolBar(),
+ body: buildSettingsPane()
+ );
+ }
+}
diff --git a/packages/flutter/example/fitness/sky.yaml b/packages/flutter/example/fitness/sky.yaml
new file mode 100644
index 0000000..51208a1
--- /dev/null
+++ b/packages/flutter/example/fitness/sky.yaml
@@ -0,0 +1,10 @@
+material-design-icons:
+ - name: action/assessment
+ - name: action/help
+ - name: action/settings
+ - name: content/add
+ - name: maps/directions_run
+ - name: navigation/arrow_back
+ - name: navigation/menu
+ - name: navigation/more_vert
+ - name: av/stop
diff --git a/packages/flutter/example/game/BUILD.gn b/packages/flutter/example/game/BUILD.gn
new file mode 100644
index 0000000..227e93b
--- /dev/null
+++ b/packages/flutter/example/game/BUILD.gn
@@ -0,0 +1,18 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//sky/build/sky_app.gni")
+
+sky_app("game") {
+ main_dart = "main.dart"
+ manifest = "sky.yaml"
+
+ if (is_android) {
+ apk_name = "Asteroids"
+
+ deps = [
+ "//sky/sdk/example/game/apk:resources",
+ ]
+ }
+}
diff --git a/packages/flutter/example/game/README.md b/packages/flutter/example/game/README.md
new file mode 100644
index 0000000..029c193
--- /dev/null
+++ b/packages/flutter/example/game/README.md
@@ -0,0 +1,2 @@
+Assets for this game are taken from Galactic Guardian:
+https://github.com/slembcke/GalacticGuardian.spritebuilder
\ No newline at end of file
diff --git a/packages/flutter/example/game/apk/AndroidManifest.xml b/packages/flutter/example/game/apk/AndroidManifest.xml
new file mode 100644
index 0000000..5514d95
--- /dev/null
+++ b/packages/flutter/example/game/apk/AndroidManifest.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2015 The Chromium Authors. All rights reserved.
+ Use of this source code is governed by a BSD-style license that can be
+ found in the LICENSE file.
+ -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="org.domokit.asteroids">
+
+ <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />
+ <uses-permission android:name="android.permission.INTERNET"/>
+
+ <application android:icon="@mipmap/ic_launcher" android:name="org.domokit.sky.shell.SkyApplication" android:label="Asteroids">
+ <activity android:name="org.domokit.sky.shell.SkyActivity"
+ android:launchMode="singleTask"
+ android:theme="@android:style/Theme.Black.NoTitleBar"
+ android:configChanges="orientation|keyboardHidden|keyboard|screenSize"
+ android:hardwareAccelerated="true">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN"/>
+ <category android:name="android.intent.category.LAUNCHER"/>
+ </intent-filter>
+ </activity>
+ </application>
+ </manifest>
diff --git a/packages/flutter/example/game/apk/BUILD.gn b/packages/flutter/example/game/apk/BUILD.gn
new file mode 100644
index 0000000..4e64a21
--- /dev/null
+++ b/packages/flutter/example/game/apk/BUILD.gn
@@ -0,0 +1,12 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+assert(is_android)
+
+import("//build/config/android/config.gni")
+import("//build/config/android/rules.gni")
+
+android_resources("resources") {
+ resource_dirs = [ "res" ]
+ android_manifest = "AndroidManifest.xml"
+}
diff --git a/packages/flutter/example/game/apk/res/mipmap-hdpi/ic_launcher.png b/packages/flutter/example/game/apk/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..b990d91
--- /dev/null
+++ b/packages/flutter/example/game/apk/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/packages/flutter/example/game/apk/res/mipmap-mdpi/ic_launcher.png b/packages/flutter/example/game/apk/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..7deee57
--- /dev/null
+++ b/packages/flutter/example/game/apk/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/packages/flutter/example/game/apk/res/mipmap-xhdpi/ic_launcher.png b/packages/flutter/example/game/apk/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..27117cc
--- /dev/null
+++ b/packages/flutter/example/game/apk/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/packages/flutter/example/game/apk/res/mipmap-xxhdpi/ic_launcher.png b/packages/flutter/example/game/apk/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..0a64d84
--- /dev/null
+++ b/packages/flutter/example/game/apk/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/packages/flutter/example/game/apk/res/mipmap-xxxhdpi/ic_launcher.png b/packages/flutter/example/game/apk/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..c067b7b
--- /dev/null
+++ b/packages/flutter/example/game/apk/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/packages/flutter/example/game/assets/nebula.png b/packages/flutter/example/game/assets/nebula.png
new file mode 100644
index 0000000..a4a10ca
--- /dev/null
+++ b/packages/flutter/example/game/assets/nebula.png
Binary files differ
diff --git a/packages/flutter/example/game/assets/sprites.json b/packages/flutter/example/game/assets/sprites.json
new file mode 100644
index 0000000..6562278
--- /dev/null
+++ b/packages/flutter/example/game/assets/sprites.json
@@ -0,0 +1,219 @@
+{"frames": [
+
+{
+ "filename": "asteroid_big_0.nrm.png",
+ "frame": {"x":2,"y":260,"w":200,"h":188},
+ "rotated": false,
+ "trimmed": false,
+ "spriteSourceSize": {"x":0,"y":0,"w":200,"h":188},
+ "sourceSize": {"w":200,"h":188},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "asteroid_big_0.png",
+ "frame": {"x":260,"y":193,"w":200,"h":167},
+ "rotated": false,
+ "trimmed": true,
+ "spriteSourceSize": {"x":0,"y":21,"w":200,"h":167},
+ "sourceSize": {"w":200,"h":188},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "asteroid_big_1.nrm.png",
+ "frame": {"x":451,"y":2,"w":204,"h":166},
+ "rotated": false,
+ "trimmed": false,
+ "spriteSourceSize": {"x":0,"y":0,"w":204,"h":166},
+ "sourceSize": {"w":204,"h":166},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "asteroid_big_1.png",
+ "frame": {"x":657,"y":2,"w":204,"h":166},
+ "rotated": false,
+ "trimmed": false,
+ "spriteSourceSize": {"x":0,"y":0,"w":204,"h":166},
+ "sourceSize": {"w":204,"h":166},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "asteroid_big_2.nrm.png",
+ "frame": {"x":462,"y":170,"w":194,"h":165},
+ "rotated": false,
+ "trimmed": false,
+ "spriteSourceSize": {"x":0,"y":0,"w":194,"h":165},
+ "sourceSize": {"w":194,"h":165},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "asteroid_big_2.png",
+ "frame": {"x":658,"y":170,"w":194,"h":165},
+ "rotated": false,
+ "trimmed": true,
+ "spriteSourceSize": {"x":0,"y":2,"w":194,"h":165},
+ "sourceSize": {"w":194,"h":167},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "asteroid_small_0.nrm.png",
+ "frame": {"x":204,"y":362,"w":102,"h":84},
+ "rotated": false,
+ "trimmed": false,
+ "spriteSourceSize": {"x":0,"y":0,"w":102,"h":84},
+ "sourceSize": {"w":102,"h":84},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "asteroid_small_0.png",
+ "frame": {"x":308,"y":362,"w":102,"h":84},
+ "rotated": false,
+ "trimmed": false,
+ "spriteSourceSize": {"x":0,"y":0,"w":102,"h":84},
+ "sourceSize": {"w":102,"h":84},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "asteroid_small_1.nrm.png",
+ "frame": {"x":854,"y":213,"w":96,"h":102},
+ "rotated": false,
+ "trimmed": false,
+ "spriteSourceSize": {"x":0,"y":0,"w":96,"h":102},
+ "sourceSize": {"w":96,"h":102},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "asteroid_small_1.png",
+ "frame": {"x":854,"y":317,"w":96,"h":102},
+ "rotated": false,
+ "trimmed": true,
+ "spriteSourceSize": {"x":0,"y":0,"w":96,"h":102},
+ "sourceSize": {"w":96,"h":106},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "asteroid_small_2.nrm.png",
+ "frame": {"x":740,"y":337,"w":109,"h":84},
+ "rotated": false,
+ "trimmed": false,
+ "spriteSourceSize": {"x":0,"y":0,"w":109,"h":84},
+ "sourceSize": {"w":109,"h":84},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "asteroid_small_2.png",
+ "frame": {"x":740,"y":423,"w":109,"h":84},
+ "rotated": false,
+ "trimmed": false,
+ "spriteSourceSize": {"x":0,"y":0,"w":109,"h":84},
+ "sourceSize": {"w":109,"h":84},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "explosion_flare.png",
+ "frame": {"x":863,"y":2,"w":56,"h":209},
+ "rotated": false,
+ "trimmed": true,
+ "spriteSourceSize": {"x":4,"y":0,"w":56,"h":209},
+ "sourceSize": {"w":64,"h":256},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "explosion_particle.png",
+ "frame": {"x":2,"y":450,"w":36,"h":60},
+ "rotated": false,
+ "trimmed": true,
+ "spriteSourceSize": {"x":14,"y":1,"w":36,"h":60},
+ "sourceSize": {"w":64,"h":64},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "explosion_ring.png",
+ "frame": {"x":2,"y":2,"w":256,"h":256},
+ "rotated": false,
+ "trimmed": false,
+ "spriteSourceSize": {"x":0,"y":0,"w":256,"h":256},
+ "sourceSize": {"w":256,"h":256},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "fire_particle.png",
+ "frame": {"x":40,"y":450,"w":55,"h":55},
+ "rotated": false,
+ "trimmed": true,
+ "spriteSourceSize": {"x":4,"y":4,"w":55,"h":55},
+ "sourceSize": {"w":64,"h":64},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "laser.png",
+ "frame": {"x":204,"y":260,"w":37,"h":76},
+ "rotated": false,
+ "trimmed": false,
+ "spriteSourceSize": {"x":0,"y":0,"w":37,"h":76},
+ "sourceSize": {"w":37,"h":76},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "shield.png",
+ "frame": {"x":260,"y":2,"w":189,"h":189},
+ "rotated": false,
+ "trimmed": false,
+ "spriteSourceSize": {"x":0,"y":0,"w":189,"h":189},
+ "sourceSize": {"w":189,"h":189},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "ship.nrm.png",
+ "frame": {"x":462,"y":337,"w":137,"h":167},
+ "rotated": false,
+ "trimmed": false,
+ "spriteSourceSize": {"x":0,"y":0,"w":137,"h":167},
+ "sourceSize": {"w":137,"h":167},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "ship.png",
+ "frame": {"x":601,"y":337,"w":137,"h":167},
+ "rotated": false,
+ "trimmed": true,
+ "spriteSourceSize": {"x":25,"y":10,"w":137,"h":167},
+ "sourceSize": {"w":188,"h":188},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "star_0.png",
+ "frame": {"x":204,"y":448,"w":62,"h":62},
+ "rotated": false,
+ "trimmed": true,
+ "spriteSourceSize": {"x":1,"y":1,"w":62,"h":62},
+ "sourceSize": {"w":64,"h":64},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "star_1.png",
+ "frame": {"x":268,"y":448,"w":62,"h":62},
+ "rotated": false,
+ "trimmed": true,
+ "spriteSourceSize": {"x":1,"y":1,"w":62,"h":62},
+ "sourceSize": {"w":64,"h":64},
+ "pivot": {"x":0.5,"y":0.5}
+},
+{
+ "filename": "star_2.png",
+ "frame": {"x":332,"y":448,"w":62,"h":62},
+ "rotated": false,
+ "trimmed": true,
+ "spriteSourceSize": {"x":1,"y":1,"w":62,"h":62},
+ "sourceSize": {"w":64,"h":64},
+ "pivot": {"x":0.5,"y":0.5}
+}],
+"meta": {
+ "app": "http://www.codeandweb.com/texturepacker",
+ "version": "1.0",
+ "image": "sprites.png",
+ "format": "RGBA8888",
+ "size": {"w":952,"h":512},
+ "scale": "1",
+ "smartupdate": "$TexturePacker:SmartUpdate:342fc72defddab59bb356b48894e2931:ecb4b4fa7772ea6a35788ebf670ca27c:1eabdf11f75e3a4fe3147baf7b5be24b$"
+}
+}
diff --git a/packages/flutter/example/game/assets/sprites.png b/packages/flutter/example/game/assets/sprites.png
new file mode 100644
index 0000000..dcba9b0
--- /dev/null
+++ b/packages/flutter/example/game/assets/sprites.png
Binary files differ
diff --git a/packages/flutter/example/game/assets/starfield.png b/packages/flutter/example/game/assets/starfield.png
new file mode 100644
index 0000000..5180600
--- /dev/null
+++ b/packages/flutter/example/game/assets/starfield.png
Binary files differ
diff --git a/packages/flutter/example/game/lib/action.dart b/packages/flutter/example/game/lib/action.dart
new file mode 100644
index 0000000..152f275
--- /dev/null
+++ b/packages/flutter/example/game/lib/action.dart
@@ -0,0 +1,470 @@
+part of sprites;
+
+typedef void ActionCallback();
+
+abstract class Action {
+ Object _tag;
+ bool _finished = false;
+ bool _added = false;
+
+ void step(double dt);
+ void update(double t) {
+ }
+
+ void _reset() {
+ _finished = false;
+ }
+
+ double get duration => 0.0;
+}
+
+abstract class ActionInterval extends Action {
+ double _duration;
+
+ bool _firstTick = true;
+ double _elapsed = 0.0;
+
+ double get duration => _duration;
+ Curve curve;
+
+ ActionInterval([this._duration = 0.0, this.curve]);
+
+ void step(double dt) {
+ if (_firstTick) {
+ _firstTick = false;
+ } else {
+ _elapsed += dt;
+ }
+
+ double t;
+ if (this._duration == 0.0) {
+ t = 1.0;
+ } else {
+ t = (_elapsed / _duration).clamp(0.0, 1.0);
+ }
+
+ if (curve == null) {
+ update(t);
+ } else {
+ update(curve.transform(t));
+ }
+
+ if (t >= 1.0) _finished = true;
+ }
+}
+
+class ActionRepeat extends ActionInterval {
+ final int numRepeats;
+ final ActionInterval action;
+ int _lastFinishedRepeat = -1;
+
+ ActionRepeat(this.action, this.numRepeats) {
+ _duration = action.duration * numRepeats;
+ }
+
+ void update(double t) {
+ int currentRepeat = math.min((t * numRepeats.toDouble()).toInt(), numRepeats - 1);
+ for (int i = math.max(_lastFinishedRepeat, 0); i < currentRepeat; i++) {
+ if (!action._finished) action.update(1.0);
+ action._reset();
+ }
+ _lastFinishedRepeat = currentRepeat;
+
+ double ta = (t * numRepeats.toDouble()) % 1.0;
+ action.update(ta);
+
+ if (t >= 1.0) {
+ action.update(1.0);
+ action._finished = true;
+ }
+ }
+}
+
+class ActionRepeatForever extends Action {
+ final ActionInterval action;
+ double _elapsedInAction = 0.0;
+
+ ActionRepeatForever(this.action);
+
+ step(double dt) {
+ _elapsedInAction += dt;
+ while (_elapsedInAction > action.duration) {
+ _elapsedInAction -= action.duration;
+ if (!action._finished) action.update(1.0);
+ action._reset();
+ }
+ _elapsedInAction = math.max(_elapsedInAction, 0.0);
+
+ double t;
+ if (action._duration == 0.0) {
+ t = 1.0;
+ } else {
+ t = (_elapsedInAction / action._duration).clamp(0.0, 1.0);
+ }
+
+ action.update(t);
+ }
+}
+
+class ActionSequence extends ActionInterval {
+ Action _a;
+ Action _b;
+ double _split;
+
+ ActionSequence(List<Action> actions) {
+ assert(actions.length >= 2);
+
+ if (actions.length == 2) {
+ // Base case
+ _a = actions[0];
+ _b = actions[1];
+ } else {
+ _a = actions[0];
+ _b = new ActionSequence(actions.sublist(1));
+ }
+
+ // Calculate split and duration
+ _duration = _a.duration + _b.duration;
+ if (_duration > 0) {
+ _split = _a.duration / _duration;
+ } else {
+ _split = 1.0;
+ }
+ }
+
+ void update(double t) {
+ if (t < _split) {
+ // Play first action
+ double ta;
+ if (_split > 0.0) {
+ ta = (t / _split).clamp(0.0, 1.0);
+ } else {
+ ta = 1.0;
+ }
+ _updateWithCurve(_a, ta);
+ } else if (t >= 1.0) {
+ // Make sure everything is finished
+ if (!_a._finished) _finish(_a);
+ if (!_b._finished) _finish(_b);
+ } else {
+ // Play second action, but first make sure the first has finished
+ if (!_a._finished) _finish(_a);
+ double tb;
+ if (_split < 1.0) {
+ tb = (1.0 - (1.0 - t) / (1.0 - _split)).clamp(0.0, 1.0);
+ } else {
+ tb = 1.0;
+ }
+ _updateWithCurve(_b, tb);
+ }
+ }
+
+ void _updateWithCurve(Action action, double t) {
+ if (action is ActionInterval) {
+ ActionInterval actionInterval = action;
+ if (actionInterval.curve == null) {
+ action.update(t);
+ } else {
+ action.update(actionInterval.curve.transform(t));
+ }
+ } else {
+ action.update(t);
+ }
+
+ if (t >= 1.0) {
+ action._finished = true;
+ }
+ }
+
+ void _finish(Action action) {
+ action.update(1.0);
+ action._finished = true;
+ }
+
+ void _reset() {
+ super._reset();
+ _a._reset();
+ _b._reset();
+ }
+}
+
+class ActionGroup extends ActionInterval {
+ List<Action> _actions;
+
+ ActionGroup(this._actions) {
+ for (Action action in _actions) {
+ if (action.duration > _duration) {
+ _duration = action.duration;
+ }
+ }
+ }
+
+ void update(double t) {
+ if (t >= 1.0) {
+ // Finish all unfinished actions
+ for (Action action in _actions) {
+ if (!action._finished) {
+ action.update(1.0);
+ action._finished = true;
+ }
+ }
+ } else {
+ for (Action action in _actions) {
+ if (action.duration == 0.0) {
+ // Fire all instant actions immediately
+ if (!action._finished) {
+ action.update(1.0);
+ action._finished = true;
+ }
+ } else {
+ // Update child actions
+ double ta = (t / (action.duration / duration)).clamp(0.0, 1.0);
+ if (ta < 1.0) {
+ if (action is ActionInterval) {
+ ActionInterval actionInterval = action;
+ if (actionInterval.curve == null) {
+ action.update(ta);
+ } else {
+ action.update(actionInterval.curve.transform(ta));
+ }
+ } else {
+ action.update(ta);
+ }
+ } else if (!action._finished){
+ action.update(1.0);
+ action._finished = true;
+ }
+ }
+ }
+ }
+ }
+
+ void _reset() {
+ for (Action action in _actions) {
+ action._reset();
+ }
+ }
+}
+
+abstract class ActionInstant extends Action {
+
+ void step(double dt) {
+ }
+
+ void update(double t) {
+ fire();
+ _finished = true;
+ }
+
+ void fire();
+}
+
+class ActionCallFunction extends ActionInstant {
+ ActionCallback _function;
+
+ ActionCallFunction(this._function);
+
+ void fire() {
+ _function();
+ }
+}
+
+class ActionRemoveNode extends ActionInstant {
+ Node _node;
+
+ ActionRemoveNode(this._node);
+
+ void fire() {
+ _node.removeFromParent();
+ }
+}
+
+class ActionTween extends ActionInterval {
+ final Function setter;
+ final startVal;
+ final endVal;
+
+ var _delta;
+
+ ActionTween(this.setter, this.startVal, this.endVal, double duration, [Curve curve]) : super(duration, curve) {
+ _computeDelta();
+ }
+
+ void _computeDelta() {
+ if (startVal is Point) {
+ // Point
+ double xStart = startVal.x;
+ double yStart = startVal.y;
+ double xEnd = endVal.x;
+ double yEnd = endVal.y;
+ _delta = new Point(xEnd - xStart, yEnd - yStart);
+ } else if (startVal is Size) {
+ // Size
+ double wStart = startVal.width;
+ double hStart = startVal.height;
+ double wEnd = endVal.width;
+ double hEnd = endVal.height;
+ _delta = new Size(wEnd - wStart, hEnd - hStart);
+ } else if (startVal is Rect) {
+ // Rect
+ double lStart = startVal.left;
+ double tStart = startVal.top;
+ double rStart = startVal.right;
+ double bStart = startVal.bottom;
+ double lEnd = endVal.left;
+ double tEnd = endVal.top;
+ double rEnd = endVal.right;
+ double bEnd = endVal.bottom;
+ _delta = new Rect.fromLTRB(lEnd - lStart, tEnd - tStart, rEnd - rStart, bEnd - bStart);
+ } else if (startVal is double) {
+ // Double
+ _delta = endVal - startVal;
+ } else if (startVal is Color) {
+ // Color
+ int aDelta = endVal.alpha - startVal.alpha;
+ int rDelta = endVal.red - startVal.red;
+ int gDelta = endVal.green - startVal.green;
+ int bDelta = endVal.blue - startVal.blue;
+ _delta = new _ColorDiff(aDelta, rDelta, gDelta, bDelta);
+ } else {
+ assert(false);
+ }
+ }
+
+ void update(double t) {
+ var newVal;
+
+ if (startVal is Point) {
+ // Point
+ double xStart = startVal.x;
+ double yStart = startVal.y;
+ double xDelta = _delta.x;
+ double yDelta = _delta.y;
+ newVal = new Point(xStart + xDelta * t, yStart + yDelta * t);
+ } else if (startVal is Size) {
+ // Size
+ double wStart = startVal.width;
+ double hStart = startVal.height;
+ double wDelta = _delta.width;
+ double hDelta = _delta.height;
+ newVal = new Size(wStart + wDelta * t, hStart + hDelta * t);
+ } else if (startVal is Rect) {
+ // Rect
+ double lStart = startVal.left;
+ double tStart = startVal.top;
+ double rStart = startVal.right;
+ double bStart = startVal.bottom;
+ double lDelta = _delta.left;
+ double tDelta = _delta.top;
+ double rDelta = _delta.right;
+ double bDelta = _delta.bottom;
+ newVal = new Rect.fromLTRB(lStart + lDelta * t, tStart + tDelta * t, rStart + rDelta * t, bStart + bDelta * t);
+ } else if (startVal is double) {
+ // Doubles
+ newVal = startVal + _delta * t;
+ } else if (startVal is Color) {
+ // Colors
+ int aNew = (startVal.alpha + (_delta.alpha * t).toInt()).clamp(0, 255);
+ int rNew = (startVal.red + (_delta.red * t).toInt()).clamp(0, 255);
+ int gNew = (startVal.green + (_delta.green * t).toInt()).clamp(0, 255);
+ int bNew = (startVal.blue + (_delta.blue * t).toInt()).clamp(0, 255);
+ newVal = new Color.fromARGB(aNew, rNew, gNew, bNew);
+ } else {
+ // Oopses
+ assert(false);
+ }
+
+ setter(newVal);
+ }
+}
+
+class ActionController {
+
+ List<Action> _actions = [];
+
+ ActionController();
+
+ void run(Action action, [Object tag]) {
+ assert(!action._added);
+
+ action._tag = tag;
+ action._added = true;
+ action.update(0.0);
+ _actions.add(action);
+ }
+
+ void stop(Action action) {
+ if (_actions.remove(action)) {
+ action._added = false;
+ action._reset();
+ }
+ }
+
+ void _stopAtIndex(int i) {
+ Action action = _actions[i];
+ action._added = false;
+ action._reset();
+ _actions.removeAt(i);
+ }
+
+ void stopWithTag(Object tag) {
+ for (int i = _actions.length - 1; i >= 0; i--) {
+ Action action = _actions[i];
+ if (action._tag == tag) {
+ _stopAtIndex(i);
+ }
+ }
+ }
+
+ void stopAll() {
+ for (int i = _actions.length - 1; i >= 0; i--) {
+ _stopAtIndex(i);
+ }
+ }
+
+ void step(double dt) {
+ for (int i = _actions.length - 1; i >= 0; i--) {
+ Action action = _actions[i];
+ action.step(dt);
+
+ if (action._finished) {
+ action._added = false;
+ _actions.removeAt(i);
+ }
+ }
+ }
+}
+
+class _ColorDiff {
+ final int alpha;
+ final int red;
+ final int green;
+ final int blue;
+
+ _ColorDiff(this.alpha, this.red, this.green, this.blue);
+}
+
+double _bounce(double t)
+{
+ if (t < 1.0 / 2.75) {
+ return 7.5625 * t * t;
+ } else if (t < 2 / 2.75) {
+ t -= 1.5 / 2.75;
+ return 7.5625 * t * t + 0.75;
+ } else if (t < 2.5 / 2.75) {
+ t -= 2.25 / 2.75;
+ return 7.5625 * t * t + 0.9375;
+ }
+ t -= 2.625 / 2.75;
+ return 7.5625 * t * t + 0.984375;
+}
+
+class BounceOutCurve implements Curve {
+ const BounceOutCurve();
+
+ double transform(double t) {
+ return _bounce(t);
+ }
+}
+
+const BounceOutCurve bounceOut = const BounceOutCurve();
diff --git a/packages/flutter/example/game/lib/color_secuence.dart b/packages/flutter/example/game/lib/color_secuence.dart
new file mode 100644
index 0000000..ed4abd8
--- /dev/null
+++ b/packages/flutter/example/game/lib/color_secuence.dart
@@ -0,0 +1,82 @@
+part of sprites;
+
+class ColorSequence {
+ List<Color> colors;
+ List<double> colorStops;
+
+ ColorSequence(this.colors, this.colorStops) {
+ assert(colors != null);
+ assert(colorStops != null);
+ assert(colors.length == colorStops.length);
+ }
+
+ ColorSequence.fromStartAndEndColor(Color start, Color end) {
+ colors = [start, end];
+ colorStops = [0.0, 1.0];
+ }
+
+ ColorSequence.copy(ColorSequence sequence) {
+ colors = new List<Color>.from(sequence.colors);
+ colorStops = new List<double>.from(sequence.colorStops);
+ }
+
+ ColorSequence.copyWithVariance(ColorSequence sequence, int alphaVar, int redVar, int greenVar, int blueVar) {
+ colors = new List<Color>();
+ colorStops = new List<double>.from(sequence.colorStops);
+
+ math.Random rand = new math.Random();
+
+ for (Color color in sequence.colors) {
+ int aDelta = ((rand.nextDouble() * 2.0 - 1.0) * alphaVar).toInt();
+ int rDelta = ((rand.nextDouble() * 2.0 - 1.0) * redVar).toInt();
+ int gDelta = ((rand.nextDouble() * 2.0 - 1.0) * greenVar).toInt();
+ int bDelta = ((rand.nextDouble() * 2.0 - 1.0) * blueVar).toInt();
+
+ int aNew = (color.alpha + aDelta).clamp(0, 255);
+ int rNew = (color.red + rDelta).clamp(0, 255);
+ int gNew = (color.green + gDelta).clamp(0, 255);
+ int bNew = (color.blue + bDelta).clamp(0, 255);
+
+ colors.add(new Color.fromARGB(aNew, rNew, gNew, bNew));
+ }
+ }
+
+ Color colorAtPosition(double pos) {
+ assert(pos >= 0.0 && pos <= 1.0);
+
+ double lastStop = colorStops[0];
+ Color lastColor = colors[0];
+
+ for (int i = 0; i < colors.length; i++) {
+ double currentStop = colorStops[i];
+ Color currentColor = colors[i];
+
+ if (pos <= currentStop) {
+ double blend = (pos - lastStop) / (currentStop - lastStop);
+ return _interpolateColor(lastColor, currentColor, blend);
+ }
+ lastStop = currentStop;
+ lastColor = currentColor;
+ }
+ return colors[colors.length-1];
+ }
+}
+
+Color _interpolateColor(Color a, Color b, double blend) {
+ double aa = a.alpha.toDouble();
+ double ar = a.red.toDouble();
+ double ag = a.green.toDouble();
+ double ab = a.blue.toDouble();
+
+ double ba = b.alpha.toDouble();
+ double br = b.red.toDouble();
+ double bg = b.green.toDouble();
+ double bb = b.blue.toDouble();
+
+ int na = (aa * (1.0 - blend) + ba * blend).toInt();
+ int nr = (ar * (1.0 - blend) + br * blend).toInt();
+ int ng = (ag * (1.0 - blend) + bg * blend).toInt();
+ int nb = (ab * (1.0 - blend) + bb * blend).toInt();
+
+ return new Color.fromARGB(na, nr, ng, nb);
+}
diff --git a/packages/flutter/example/game/lib/game_demo.dart b/packages/flutter/example/game/lib/game_demo.dart
new file mode 100644
index 0000000..ac95337
--- /dev/null
+++ b/packages/flutter/example/game/lib/game_demo.dart
@@ -0,0 +1,10 @@
+library game;
+
+import 'dart:sky' as sky;
+import 'dart:math' as Math;
+import 'package:vector_math/vector_math_64.dart';
+import 'package:sky/widgets/widget.dart';
+import 'sprites.dart';
+import 'package:sky/rendering/object.dart';
+
+part 'game_demo_world.dart';
diff --git a/packages/flutter/example/game/lib/game_demo_world.dart b/packages/flutter/example/game/lib/game_demo_world.dart
new file mode 100644
index 0000000..37b3b63
--- /dev/null
+++ b/packages/flutter/example/game/lib/game_demo_world.dart
@@ -0,0 +1,629 @@
+part of game;
+
+const double _steeringThreshold = 0.0;
+const double _steeringMax = 150.0;
+
+// Random generator
+Math.Random _rand = new Math.Random();
+
+const double _gameSizeWidth = 1024.0;
+const double _gameSizeHeight = 1024.0;
+
+const double _shipRadius = 30.0;
+const double _lrgAsteroidRadius = 40.0;
+const double _medAsteroidRadius = 20.0;
+const double _smlAsteroidRadius = 10.0;
+const double _maxAsteroidSpeed = 1.0;
+
+const int _lifeTimeLaser = 50;
+
+const int _numStarsInStarField = 150;
+
+const int _numFramesShieldActive = 60 * 5;
+const int _numFramesShieldFlickers = 60;
+
+class GameDemoWorld extends NodeWithSize {
+ // Images
+ sky.Image _imgNebula;
+
+ SpriteSheet _spriteSheet;
+
+ // Inputs
+ double _joystickX = 0.0;
+ double _joystickY = 0.0;
+
+ Node _gameLayer;
+
+ Ship _ship;
+ Sprite _shield;
+ List<Asteroid> _asteroids = [];
+ List<Laser> _lasers = [];
+ StarField _starField;
+ Nebula _nebula;
+
+ // Game state
+ int _numFrames = 0;
+ bool _isGameOver = false;
+
+ GameDemoWorld(App app, ImageMap images, this._spriteSheet) : super(new Size(_gameSizeWidth, _gameSizeHeight)) {
+
+ // Fetch images
+ _imgNebula = images["assets/nebula.png"];
+
+ _gameLayer = new Node();
+ this.addChild(_gameLayer);
+
+ // Add some asteroids to the game world
+ for (int i = 0; i < 5; i++) {
+ addAsteroid(AsteroidSize.large);
+ }
+ for (int i = 0; i < 5; i++) {
+ addAsteroid(AsteroidSize.medium);
+ }
+
+ // Add ship
+ addShip();
+
+ // Add background
+ Sprite sprtBackground = new Sprite.fromImage(images["assets/starfield.png"]);
+ sprtBackground.position = new Point(512.0, 512.0);
+ sprtBackground.zPosition = -3.0;
+ addChild(sprtBackground);
+
+ // Add starfield
+ _starField = new StarField(_spriteSheet, _numStarsInStarField);
+ _starField.zPosition = -2.0;
+ addChild(_starField);
+
+ // Add nebula
+ addNebula();
+
+ userInteractionEnabled = true;
+ handleMultiplePointers = true;
+ }
+
+ // Methods for adding game objects
+
+ void addAsteroid(AsteroidSize size, [Point pos]) {
+ Asteroid asteroid = new Asteroid(_spriteSheet, size);
+ asteroid.zPosition = 1.0;
+ if (pos != null) asteroid.position = pos;
+ _gameLayer.addChild(asteroid);
+ _asteroids.add(asteroid);
+ }
+
+ void addShip() {
+ Ship ship = new Ship(_spriteSheet["ship.png"]);
+ ship.zPosition = 10.0;
+ _gameLayer.addChild(ship);
+ _ship = ship;
+
+ _shield = new Sprite(_spriteSheet["shield.png"]);
+ _shield.zPosition = 11.0;
+ _shield.scale = 0.5;
+ _shield.transferMode = sky.TransferMode.plus;
+ _gameLayer.addChild(_shield);
+
+ Action rotate = new ActionRepeatForever(new ActionTween((a) => _shield.rotation = a, 0.0, 360.0, 1.0));
+ actions.run(rotate);
+ }
+
+ void addLaser() {
+ Laser laser = new Laser(_spriteSheet["laser.png"], _ship);
+ laser.zPosition = 8.0;
+ laser.constrainProportions = true;
+ _lasers.add(laser);
+ _gameLayer.addChild(laser);
+ }
+
+ void addNebula() {
+ _nebula = new Nebula.withImage(_imgNebula);
+ _gameLayer.addChild(_nebula);
+ }
+
+ void addExplosion(AsteroidSize asteroidSize, Point position) {
+ Node explosionNode = new Node();
+
+ // Add particles
+ ParticleSystem particlesDebris = new ParticleSystem(
+ _spriteSheet["explosion_particle.png"],
+ rotateToMovement: true,
+ startRotation:90.0,
+ startRotationVar: 0.0,
+ endRotation: 90.0,
+ startSize: 0.3,
+ startSizeVar: 0.1,
+ endSize: 0.3,
+ endSizeVar: 0.1,
+ numParticlesToEmit: 25,
+ emissionRate:1000.0,
+ greenVar: 127,
+ redVar: 127
+ );
+ particlesDebris.zPosition = 1010.0;
+ explosionNode.addChild(particlesDebris);
+
+ ParticleSystem particlesFire = new ParticleSystem(
+ _spriteSheet["fire_particle.png"],
+ colorSequence: new ColorSequence([new Color(0xffffff33), new Color(0xffff3333), new Color(0x00ff3333)], [0.0, 0.5, 1.0]),
+ numParticlesToEmit: 25,
+ emissionRate: 1000.0,
+ startSize: 0.5,
+ startSizeVar: 0.1,
+ endSize: 0.5,
+ endSizeVar: 0.1,
+ posVar: new Point(10.0, 10.0),
+ speed: 10.0,
+ speedVar: 5.0
+ );
+ particlesFire.zPosition = 1011.0;
+ explosionNode.addChild(particlesFire);
+
+
+ // Add ring
+ Sprite sprtRing = new Sprite(_spriteSheet["explosion_ring.png"]);
+ sprtRing.transferMode = sky.TransferMode.plus;
+ explosionNode.addChild(sprtRing);
+
+ Action scale = new ActionTween( (a) => sprtRing.scale = a, 0.2, 1.0, 1.5);
+ Action scaleAndRemove = new ActionSequence([scale, new ActionRemoveNode(sprtRing)]);
+ Action fade = new ActionTween( (a) => sprtRing.opacity = a, 1.0, 0.0, 1.5);
+ actions.run(scaleAndRemove);
+ actions.run(fade);
+
+ // Add streaks
+ for (int i = 0; i < 5; i++) {
+ Sprite sprtFlare = new Sprite(_spriteSheet["explosion_flare.png"]);
+ sprtFlare.pivot = new Point(0.3, 1.0);
+ sprtFlare.scaleX = 0.3;
+ sprtFlare.transferMode = sky.TransferMode.plus;
+ sprtFlare.rotation = _rand.nextDouble() * 360.0;
+ explosionNode.addChild(sprtFlare);
+
+ double multiplier = _rand.nextDouble() * 0.3 + 1.0;
+
+ Action scale = new ActionTween( (a) => sprtFlare.scaleY = a, 0.3 * multiplier, 0.8, 1.5 * multiplier);
+ Action scaleAndRemove = new ActionSequence([scale, new ActionRemoveNode(sprtFlare)]);
+ Action fadeIn = new ActionTween( (a) => sprtFlare.opacity = a, 0.0, 1.0, 0.5 * multiplier);
+ Action fadeOut = new ActionTween( (a) => sprtFlare.opacity = a, 1.0, 0.0, 1.0 * multiplier);
+ Action fadeInOut = new ActionSequence([fadeIn, fadeOut]);
+ actions.run(scaleAndRemove);
+ actions.run(fadeInOut);
+ }
+
+ explosionNode.position = position;
+ explosionNode.zPosition = 1010.0;
+
+ if (asteroidSize == AsteroidSize.large) {
+ explosionNode.scale = 1.5;
+ }
+
+ _gameLayer.addChild(explosionNode);
+ }
+
+ void update(double dt) {
+ // Move asteroids
+ for (Asteroid asteroid in _asteroids) {
+ asteroid.position = pointAdd(asteroid.position, asteroid._movementVector);
+ }
+
+ // Move lasers and remove expired lasers
+ for (int i = _lasers.length - 1; i >= 0; i--) {
+ Laser laser = _lasers[i];
+ laser.move();
+ if (laser._frameCount > _lifeTimeLaser) {
+ laser.removeFromParent();
+ _lasers.removeAt(i);
+ }
+ }
+
+ // Apply thrust to ship
+ if (_joystickX != 0.0 || _joystickY != 0.0) {
+ _ship.thrust(_joystickX, _joystickY);
+ }
+
+ // Move ship
+ _ship.move();
+ _shield.position = _ship.position;
+
+ // Check collisions between asteroids and lasers
+ for (int i = _lasers.length -1; i >= 0; i--) {
+ // Iterate over all the lasers
+ Laser laser = _lasers[i];
+
+ for (int j = _asteroids.length - 1; j >= 0; j--) {
+ // Iterate over all the asteroids
+ Asteroid asteroid = _asteroids[j];
+
+ // Check for collision
+ if (pointQuickDist(laser.position, asteroid.position) < laser.radius + asteroid.radius) {
+ // Remove laser
+ laser.removeFromParent();
+ _lasers.removeAt(i);
+
+ // Add asteroids and explosions
+ if (asteroid._asteroidSize == AsteroidSize.large) {
+ for (int a = 0; a < 3; a++) addAsteroid(AsteroidSize.medium, asteroid.position);
+ }
+ else if (asteroid._asteroidSize == AsteroidSize.medium) {
+ for (int a = 0; a < 5; a++) addAsteroid(AsteroidSize.small, asteroid.position);
+ }
+
+ addExplosion(asteroid._asteroidSize, asteroid.position);
+
+ // Remove asteroid
+ asteroid.removeFromParent();
+ _asteroids.removeAt(j);
+ break;
+ }
+ }
+ }
+
+ // Check collisions between asteroids and ship
+ if (_numFrames > _numFramesShieldActive) {
+ // Shield is no longer active
+
+ for (int i = _asteroids.length - 1; i >= 0; i--) {
+ // Iterate over all the asteroids
+ Asteroid asteroid = _asteroids[i];
+
+ if (pointQuickDist(asteroid.position, _ship.position) < asteroid.radius + _ship.radius) {
+ killShip();
+ }
+ }
+ }
+
+ // Move objects to center camera and warp objects around the edges
+ centerCamera();
+ warpObjects();
+
+ // Update shield
+ if (_numFrames > _numFramesShieldActive) _shield.visible = false;
+ else if (_numFrames > _numFramesShieldActive - _numFramesShieldFlickers) _shield.visible = !_shield.visible;
+
+ _numFrames++;
+ }
+
+ void centerCamera() {
+ const cameraDampening = 0.1;
+ Point delta = new Point(_gameSizeWidth/2 - _ship.position.x, _gameSizeHeight/2 - _ship.position.y);
+ delta = pointMult(delta, cameraDampening);
+
+ for (Node child in _gameLayer.children) {
+ child.position = pointAdd(child.position, delta);
+ }
+
+ // Update starfield
+ _starField.move(delta.x, delta.y);
+ }
+
+ void warpObjects() {
+ for (Node child in _gameLayer.children) {
+ if (child.position.x < 0) child.position = pointAdd(child.position, new Point(_gameSizeWidth, 0.0));
+ if (child.position.x >= _gameSizeWidth) child.position = pointAdd(child.position, new Point(-_gameSizeWidth, 0.0));
+ if (child.position.y < 0) child.position = pointAdd(child.position, new Point(0.0, _gameSizeHeight));
+ if (child.position.y >= _gameSizeHeight) child.position = pointAdd(child.position, new Point(0.0, -_gameSizeHeight));
+ }
+ }
+
+ void killShip() {
+ if (_isGameOver) return;
+
+ // Set game over
+ _isGameOver = true;
+
+ // Remove the ship
+ _ship.visible = false;
+
+ // Add an explosion
+ addExplosion(AsteroidSize.large, _ship.position);
+ }
+
+ // Handling controls
+
+ void controlSteering(double x, double y) {
+ // Reset controls if it's game over
+ if (_isGameOver) {
+ x = y = 0.0;
+ }
+
+ _joystickX = x;
+ _joystickY = y;
+ }
+
+ void controlFire() {
+ // Don't shoot if it's game over
+ if (_isGameOver) return;
+
+ addLaser();
+ }
+
+ // Handle pointer events
+
+ int _firstPointer = -1;
+ int _secondPointer = -1;
+ Point _firstPointerDownPos;
+
+ bool handleEvent(SpriteBoxEvent event) {
+
+ Point pointerPos = convertPointToNodeSpace(event.boxPosition);
+ int pointer = event.pointer;
+
+ switch (event.type) {
+ case 'pointerdown':
+ if (_firstPointer == -1) {
+ // Assign the first pointer
+ _firstPointer = pointer;
+ _firstPointerDownPos = pointerPos;
+ }
+ else if (_secondPointer == -1) {
+ // Assign second pointer
+ _secondPointer = pointer;
+ controlFire();
+ }
+ else {
+ // There is a pointer used for steering, let's fire instead
+ controlFire();
+ }
+ break;
+ case 'pointermove':
+ if (pointer == _firstPointer) {
+ // Handle turning control
+ double joystickX = 0.0;
+ double deltaX = pointerPos.x - _firstPointerDownPos.x;
+ if (deltaX > _steeringThreshold || deltaX < -_steeringThreshold) {
+ joystickX = (deltaX - _steeringThreshold)/(_steeringMax - _steeringThreshold);
+ if (joystickX > 1.0) joystickX = 1.0;
+ if (joystickX < -1.0) joystickX = -1.0;
+ }
+
+ double joystickY = 0.0;
+ double deltaY = pointerPos.y - _firstPointerDownPos.y;
+ if (deltaY > _steeringThreshold || deltaY < -_steeringThreshold) {
+ joystickY = (deltaY - _steeringThreshold)/(_steeringMax - _steeringThreshold);
+ if (joystickY > 1.0) joystickY = 1.0;
+ if (joystickY < -1.0) joystickY = -1.0;
+ }
+
+ controlSteering(joystickX, joystickY);
+ }
+ break;
+ case 'pointerup':
+ case 'pointercancel':
+ if (pointer == _firstPointer) {
+ // Un-assign the first pointer
+ _firstPointer = -1;
+ _firstPointerDownPos = null;
+ controlSteering(0.0, 0.0);
+ }
+ else if (pointer == _secondPointer) {
+ _secondPointer = -1;
+ }
+ break;
+ default:
+ break;
+ }
+ return true;
+ }
+}
+
+// Game objects
+
+enum AsteroidSize {
+ small,
+ medium,
+ large,
+}
+
+class Asteroid extends Sprite {
+ Point _movementVector;
+ AsteroidSize _asteroidSize;
+ double _radius;
+
+ double get radius {
+ if (_radius != null) return _radius;
+ if (_asteroidSize == AsteroidSize.small) _radius = _smlAsteroidRadius;
+ else if (_asteroidSize == AsteroidSize.medium) _radius = _medAsteroidRadius;
+ else if (_asteroidSize == AsteroidSize.large) _radius = _lrgAsteroidRadius;
+ return _radius;
+ }
+
+ Asteroid(SpriteSheet spriteSheet, AsteroidSize this._asteroidSize) {
+ size = new Size(radius * 2.0, radius * 2.0);
+ position = new Point(_gameSizeWidth * _rand.nextDouble(), _gameSizeHeight * _rand.nextDouble());
+ rotation = 360.0 * _rand.nextDouble();
+
+ if (_asteroidSize == AsteroidSize.small) {
+ texture = spriteSheet["asteroid_small_${_rand.nextInt(2)}.png"];
+ } else {
+ texture = spriteSheet["asteroid_big_${_rand.nextInt(2)}.png"];
+ }
+
+ _movementVector = new Point(_rand.nextDouble() * _maxAsteroidSpeed * 2 - _maxAsteroidSpeed,
+ _rand.nextDouble() * _maxAsteroidSpeed * 2 - _maxAsteroidSpeed);
+
+ userInteractionEnabled = true;
+
+ // Rotate forever
+ double direction = (_rand.nextBool()) ? 360.0 : -360.0;
+ ActionTween rot = new ActionTween( (a) => rotation = a, 0.0, direction, 2.0 * _rand.nextDouble() + 2.0);
+ ActionRepeatForever repeat = new ActionRepeatForever(rot);
+ actions.run(repeat);
+ }
+
+ bool handleEvent(SpriteBoxEvent event) {
+ if (event.type == "pointerdown") {
+ actions.stopWithTag("fade");
+ colorOverlay = new Color(0x99ffffff);
+ }
+ else if (event.type == "pointerup") {
+ // Fade out the color overlay
+ Action fadeOut = new ActionTween((a) => this.colorOverlay = a, new Color(0x99ffffff), new Color(0x00ffffff), 1.0);
+ Action fadeOutAndRemove = new ActionSequence([fadeOut, new ActionCallFunction(() => this.colorOverlay = null)]);
+ actions.run(fadeOutAndRemove, "fade");
+ }
+ return false;
+ }
+}
+
+class Ship extends Sprite {
+ Vector2 _movementVector;
+ double _rotationTarget;
+ double radius = _shipRadius;
+
+ Ship(Texture img) : super(img) {
+ _movementVector = new Vector2.zero();
+ rotation = _rotationTarget = 270.0;
+
+ // Create sprite
+ size = new Size(_shipRadius * 2.0, _shipRadius * 2.0);
+ position = new Point(_gameSizeWidth/2.0, _gameSizeHeight/2.0);
+ }
+
+ void thrust(double x, double y) {
+ _rotationTarget = convertRadians2Degrees(Math.atan2(y, x));
+ Vector2 directionVector = new Vector2(x, y).normalize();
+ _movementVector.addScaled(directionVector, 1.0);
+ }
+
+ void move() {
+ position = new Point(position.x + _movementVector[0], position.y + _movementVector[1]);
+ _movementVector.scale(0.9);
+
+ rotation = dampenRotation(rotation, _rotationTarget, 0.1);
+ }
+}
+
+class Laser extends Sprite {
+ int _frameCount = 0;
+ Point _movementVector;
+ double radius = 20.0;
+
+ Laser(Texture img, Ship ship) : super(img) {
+ size = new Size(30.0, 30.0);
+ position = ship.position;
+ rotation = ship.rotation + 90.0;
+ transferMode = sky.TransferMode.plus;
+ double rotRadians = convertDegrees2Radians(rotation);
+ _movementVector = pointMult(new Point(Math.sin(rotRadians), -Math.cos(rotRadians)), 10.0);
+ _movementVector = new Point(_movementVector.x + ship._movementVector[0], _movementVector.y + ship._movementVector[1]);
+ }
+
+ void move() {
+ position = pointAdd(position, _movementVector);
+ _frameCount++;
+ }
+}
+
+// Background starfield
+
+class StarField extends Node {
+ int _numStars;
+ List<Point> _starPositions;
+ List<double> _starScales;
+ List<double> _opacity;
+ List<Texture> _textures;
+
+ StarField(SpriteSheet spriteSheet, this._numStars) {
+ _starPositions = [];
+ _starScales = [];
+ _opacity = [];
+ _textures = [];
+
+ for (int i = 0; i < _numStars; i++) {
+ _starPositions.add(new Point(_rand.nextDouble() * _gameSizeWidth, _rand.nextDouble() * _gameSizeHeight));
+ _starScales.add(_rand.nextDouble());
+ _opacity.add(_rand.nextDouble() * 0.5 + 0.5);
+ _textures.add(spriteSheet["star_${_rand.nextInt(2)}.png"]);
+ }
+ }
+
+ void paint(PaintingCanvas canvas) {
+ // Setup paint object for opacity and transfer mode
+ Paint paint = new Paint();
+ paint.setTransferMode(sky.TransferMode.plus);
+
+ double baseScaleX = 64.0 / _textures[0].size.width;
+ double baseScaleY = 64.0 / _textures[0].size.height;
+
+ // Draw each star
+ for (int i = 0; i < _numStars; i++) {
+ Point pos = _starPositions[i];
+ double scale = _starScales[i];
+ paint.color = new Color.fromARGB((255.0*_opacity[i]).toInt(), 255, 255, 255);
+
+ canvas.save();
+
+ canvas.translate(pos.x, pos.y);
+ canvas.scale(baseScaleX * scale, baseScaleY * scale);
+
+ canvas.drawImageRect(_textures[i].image, _textures[i].frame, _textures[i].spriteSourceSize, paint);
+
+ canvas.restore();
+ }
+ }
+
+ void move(double dx, double dy) {
+ for (int i = 0; i < _numStars; i++) {
+ double xPos = _starPositions[i].x;
+ double yPos = _starPositions[i].y;
+ double scale = _starScales[i];
+
+ xPos += dx * scale;
+ yPos += dy * scale;
+
+ if (xPos >= _gameSizeWidth) xPos -= _gameSizeWidth;
+ if (xPos < 0) xPos += _gameSizeWidth;
+ if (yPos >= _gameSizeHeight) yPos -= _gameSizeHeight;
+ if (yPos < 0) yPos += _gameSizeHeight;
+
+ _starPositions[i] = new Point(xPos, yPos);
+ }
+ }
+}
+
+class Nebula extends Node {
+
+ Nebula.withImage(sky.Image img) {
+ for (int i = 0; i < 2; i++) {
+ for (int j = 0; j < 2; j++) {
+ Sprite sprt = new Sprite.fromImage(img);
+ sprt.pivot = Point.origin;
+ sprt.position = new Point(i * _gameSizeWidth - _gameSizeWidth, j * _gameSizeHeight - _gameSizeHeight);
+ addChild(sprt);
+ }
+ }
+ }
+}
+
+// Convenience methods
+
+Point pointAdd(Point a, Point b) {
+ return new Point(a.x+ b.x, a.y + b.y);
+}
+
+Point pointMult(Point a, double multiplier) {
+ return new Point(a.x * multiplier, a.y * multiplier);
+}
+
+double dampenRotation(double src, double dst, double dampening) {
+ double delta = dst - src;
+ while (delta > 180.0) delta -= 360;
+ while (delta < -180) delta += 360;
+ delta *= dampening;
+
+ return src + delta;
+}
+
+double pointQuickDist(Point a, Point b) {
+ double dx = a.x - b.x;
+ double dy = a.y - b.y;
+ if (dx < 0.0) dx = -dx;
+ if (dy < 0.0) dy = -dy;
+ if (dx > dy) {
+ return dx + dy/2.0;
+ }
+ else {
+ return dy + dx/2.0;
+ }
+}
diff --git a/packages/flutter/example/game/lib/image_map.dart b/packages/flutter/example/game/lib/image_map.dart
new file mode 100644
index 0000000..407c29f
--- /dev/null
+++ b/packages/flutter/example/game/lib/image_map.dart
@@ -0,0 +1,25 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+part of sprites;
+
+class ImageMap {
+ ImageMap(AssetBundle bundle) : _bundle = bundle;
+
+ final AssetBundle _bundle;
+ final Map<String, Image> _images = new Map<String, Image>();
+
+ Future<List<Image>> load(List<String> urls) {
+ return Future.wait(urls.map(_loadImage));
+ }
+
+ Future<Image> _loadImage(String url) async {
+ Image image = await _bundle.loadImage(url);
+ _images[url] = image;
+ return image;
+ }
+
+ Image getImage(String url) => _images[url];
+ Image operator [](String url) => _images[url];
+}
diff --git a/packages/flutter/example/game/lib/node.dart b/packages/flutter/example/game/lib/node.dart
new file mode 100644
index 0000000..319bf00
--- /dev/null
+++ b/packages/flutter/example/game/lib/node.dart
@@ -0,0 +1,539 @@
+part of sprites;
+
+double convertDegrees2Radians(double degrees) => degrees * math.PI/180.8;
+
+double convertRadians2Degrees(double radians) => radians * 180.0/math.PI;
+
+/// A base class for all objects that can be added to the sprite node tree and rendered to screen using [SpriteBox] and
+/// [SpriteWidget].
+///
+/// The [Node] class itself doesn't render any content, but provides the basic functions of any type of node, such as
+/// handling transformations and user input. To render the node tree, a root node must be added to a [SpriteBox] or a
+/// [SpriteWidget]. Commonly used sub-classes of [Node] are [Sprite], [NodeWithSize], and many more upcoming subclasses.
+///
+/// Nodes form a hierarchical tree. Each node can have a number of children, and the transformation (positioning,
+/// rotation, and scaling) of a node also affects its children.
+class Node {
+
+ // Member variables
+
+ SpriteBox _spriteBox;
+ Node _parent;
+
+ Point _position = Point.origin;
+ double _rotation = 0.0;
+
+ Matrix4 _transformMatrix = new Matrix4.identity();
+ Matrix4 _transformMatrixNodeToBox;
+ Matrix4 _transformMatrixBoxToNode;
+
+ double _scaleX = 1.0;
+ double _scaleY = 1.0;
+
+ /// The visibility of this node and its children.
+ bool visible = true;
+
+ double _zPosition = 0.0;
+ int _addedOrder;
+ int _childrenLastAddedOrder = 0;
+ bool _childrenNeedSorting = false;
+
+ /// Decides if the node and its children is currently paused.
+ ///
+ /// A paused node will not receive any input events, update calls, or run any animations.
+ ///
+ /// myNodeTree.paused = true;
+ bool paused = false;
+
+ bool _userInteractionEnabled = false;
+
+ /// If set to true the node will receive multiple pointers, otherwise it will only receive events the first pointer.
+ ///
+ /// This property is only meaningful if [userInteractionEnabled] is set to true. Default value is false.
+ ///
+ /// class MyCustomNode extends Node {
+ /// handleMultiplePointers = true;
+ /// }
+ bool handleMultiplePointers = false;
+ int _handlingPointer;
+
+ List<Node>_children = [];
+
+ ActionController _actions;
+
+ ActionController get actions {
+ if (_actions == null) {
+ _actions = new ActionController();
+ }
+ return _actions;
+ }
+
+ // Constructors
+
+ /// Creates a new [Node] without any transformation.
+ ///
+ /// var myNode = new Node();
+ Node() {
+ }
+
+ // Property setters and getters
+
+ /// The [SpriteBox] this node is added to, or null if it's not currently added to a [SpriteBox].
+ ///
+ /// For most applications it's not necessary to access the [SpriteBox] directly.
+ ///
+ /// // Get the transformMode of the sprite box
+ /// var transformMode = myNode.spriteBox.transformMode;
+ SpriteBox get spriteBox => _spriteBox;
+
+ /// The parent of this node, or null if it doesn't have a parent.
+ ///
+ /// // Hide the parent
+ /// myNode.parent.visible = false;
+ Node get parent => _parent;
+
+ /// The rotation of this node in degrees.
+ ///
+ /// myNode.rotation = 45.0;
+ double get rotation => _rotation;
+
+ void set rotation(double rotation) {
+ assert(rotation != null);
+ _rotation = rotation;
+ _invalidateTransformMatrix();
+ }
+
+ /// The position of this node relative to its parent.
+ ///
+ /// myNode.position = new Point(42.0, 42.0);
+ Point get position => _position;
+
+ void set position(Point position) {
+ assert(position != null);
+ _position = position;
+ _invalidateTransformMatrix();
+ }
+
+ /// The draw order of this node compared to its parent and its siblings.
+ ///
+ /// By default nodes are drawn in the order that they have been added to a parent. To override this behavior the
+ /// [zPosition] property can be used. A higher value of this property will force the node to be drawn in front of
+ /// siblings that have a lower value. If a negative value is used the node will be drawn behind its parent.
+ ///
+ /// nodeInFront.zPosition = 1.0;
+ /// nodeBehind.zPosition = -1.0;
+ double get zPosition => _zPosition;
+
+ void set zPosition(double zPosition) {
+ assert(zPosition != null);
+ _zPosition = zPosition;
+ if (_parent != null) {
+ _parent._childrenNeedSorting = true;
+ }
+ }
+
+ /// The scale of this node relative its parent.
+ ///
+ /// The [scale] property is only valid if [scaleX] and [scaleY] are equal values.
+ ///
+ /// myNode.scale = 5.0;
+ double get scale {
+ assert(_scaleX == _scaleY);
+ return _scaleX;
+ }
+
+ void set scale(double scale) {
+ assert(scale != null);
+ _scaleX = _scaleY = scale;
+ _invalidateTransformMatrix();
+ }
+
+ /// The horizontal scale of this node relative its parent.
+ ///
+ /// myNode.scaleX = 5.0;
+ double get scaleX => _scaleX;
+
+ void set scaleX(double scaleX) {
+ assert(scaleX != null);
+ _scaleX = scaleX;
+ _invalidateTransformMatrix();
+ }
+
+ /// The vertical scale of this node relative its parent.
+ ///
+ /// myNode.scaleY = 5.0;
+ double get scaleY => _scaleY;
+
+ void set scaleY(double scaleY) {
+ assert(scaleY != null);
+ _scaleY = scaleY;
+ _invalidateTransformMatrix();
+ }
+
+ /// A list of the children of this node.
+ ///
+ /// This list should only be modified by using the [addChild] and [removeChild] methods.
+ ///
+ /// // Iterate over a nodes children
+ /// for (Node child in myNode.children) {
+ /// // Do something with the child
+ /// }
+ List<Node> get children {
+ _sortChildren();
+ return _children;
+ }
+
+ // Adding and removing children
+
+ /// Adds a child to this node.
+ ///
+ /// The same node cannot be added to multiple nodes.
+ ///
+ /// addChild(new Sprite(myImage));
+ void addChild(Node child) {
+ assert(child != null);
+ assert(child._parent == null);
+
+ _childrenNeedSorting = true;
+ _children.add(child);
+ child._parent = this;
+ child._spriteBox = this._spriteBox;
+ _childrenLastAddedOrder += 1;
+ child._addedOrder = _childrenLastAddedOrder;
+ if (_spriteBox != null) _spriteBox._eventTargets = null;
+ }
+
+ /// Removes a child from this node.
+ ///
+ /// removeChild(myChildNode);
+ void removeChild(Node child) {
+ assert(child != null);
+ if (_children.remove(child)) {
+ child._parent = null;
+ child._spriteBox = null;
+ if (_spriteBox != null) _spriteBox._eventTargets = null;
+ }
+ }
+
+ /// Removes this node from its parent node.
+ ///
+ /// removeFromParent();
+ void removeFromParent() {
+ assert(_parent != null);
+ _parent.removeChild(this);
+ }
+
+ /// Removes all children of this node.
+ ///
+ /// removeAllChildren();
+ void removeAllChildren() {
+ for (Node child in _children) {
+ child._parent = null;
+ child._spriteBox = null;
+ }
+ _children = [];
+ _childrenNeedSorting = false;
+ if (_spriteBox != null) _spriteBox._eventTargets = null;
+ }
+
+ void _sortChildren() {
+ // Sort children primarily by zPosition, secondarily by added order
+ if (_childrenNeedSorting) {
+ _children.sort((Node a, Node b) {
+ if (a._zPosition == b._zPosition) {
+ return a._addedOrder - b._addedOrder;
+ }
+ else if (a._zPosition > b._zPosition) {
+ return 1;
+ }
+ else {
+ return -1;
+ }
+ });
+ _childrenNeedSorting = false;
+ }
+ }
+
+ // Calculating the transformation matrix
+
+ /// The transformMatrix describes the transformation from the node's parent.
+ ///
+ /// You cannot set the transformMatrix directly, instead use the position, rotation and scale properties.
+ ///
+ /// Matrix4 matrix = myNode.transformMatrix;
+ Matrix4 get transformMatrix {
+ if (_transformMatrix != null) {
+ return _transformMatrix;
+ }
+
+ double cx, sx, cy, sy;
+
+ if (_rotation == 0.0) {
+ cx = 1.0;
+ sx = 0.0;
+ cy = 1.0;
+ sy = 0.0;
+ }
+ else {
+ double radiansX = convertDegrees2Radians(_rotation);
+ double radiansY = convertDegrees2Radians(_rotation);
+
+ cx = math.cos(radiansX);
+ sx = math.sin(radiansX);
+ cy = math.cos(radiansY);
+ sy = math.sin(radiansY);
+ }
+
+ // Create transformation matrix for scale, position and rotation
+ _transformMatrix = new Matrix4(cy * _scaleX, sy * _scaleX, 0.0, 0.0,
+ -sx * _scaleY, cx * _scaleY, 0.0, 0.0,
+ 0.0, 0.0, 1.0, 0.0,
+ _position.x, _position.y, 0.0, 1.0);
+
+ return _transformMatrix;
+ }
+
+ void _invalidateTransformMatrix() {
+ _transformMatrix = null;
+ _invalidateToBoxTransformMatrix();
+ }
+
+ void _invalidateToBoxTransformMatrix () {
+ _transformMatrixNodeToBox = null;
+ _transformMatrixBoxToNode = null;
+
+ for (Node child in children) {
+ child._invalidateToBoxTransformMatrix();
+ }
+ }
+
+ // Transforms to other nodes
+
+ Matrix4 _nodeToBoxMatrix() {
+ assert(_spriteBox != null);
+ if (_transformMatrixNodeToBox != null) {
+ return _transformMatrixNodeToBox;
+ }
+
+ if (_parent == null) {
+ // Base case, we are at the top
+ assert(this == _spriteBox.rootNode);
+ _transformMatrixNodeToBox = new Matrix4.copy(_spriteBox.transformMatrix).multiply(transformMatrix);
+ }
+ else {
+ _transformMatrixNodeToBox = new Matrix4.copy(_parent._nodeToBoxMatrix()).multiply(transformMatrix);
+ }
+ return _transformMatrixNodeToBox;
+ }
+
+ Matrix4 _boxToNodeMatrix() {
+ assert(_spriteBox != null);
+
+ if (_transformMatrixBoxToNode != null) {
+ return _transformMatrixBoxToNode;
+ }
+
+ _transformMatrixBoxToNode = new Matrix4.copy(_nodeToBoxMatrix());
+ _transformMatrixBoxToNode.invert();
+
+ return _transformMatrixBoxToNode;
+ }
+
+ /// Converts a point from the coordinate system of the [SpriteBox] to the local coordinate system of the node.
+ ///
+ /// This method is particularly useful when handling pointer events and need the pointers position in a local
+ /// coordinate space.
+ ///
+ /// Point localPoint = myNode.convertPointToNodeSpace(pointInBoxCoordinates);
+ Point convertPointToNodeSpace(Point boxPoint) {
+ assert(boxPoint != null);
+ assert(_spriteBox != null);
+
+ Vector4 v =_boxToNodeMatrix().transform(new Vector4(boxPoint.x, boxPoint.y, 0.0, 1.0));
+ return new Point(v[0], v[1]);
+ }
+
+ /// Converts a point from the local coordinate system of the node to the coordinate system of the [SpriteBox].
+ ///
+ /// Point pointInBoxCoordinates = myNode.convertPointToBoxSpace(localPoint);
+ Point convertPointToBoxSpace(Point nodePoint) {
+ assert(nodePoint != null);
+ assert(_spriteBox != null);
+
+ Vector4 v =_nodeToBoxMatrix().transform(new Vector4(nodePoint.x, nodePoint.y, 0.0, 1.0));
+ return new Point(v[0], v[1]);
+ }
+
+ /// Converts a [point] from another [node]s coordinate system into the local coordinate system of this node.
+ ///
+ /// Point pointInNodeASpace = nodeA.convertPointFromNode(pointInNodeBSpace, nodeB);
+ Point convertPointFromNode(Point point, Node node) {
+ assert(node != null);
+ assert(point != null);
+ assert(_spriteBox != null);
+ assert(_spriteBox == node._spriteBox);
+
+ Point boxPoint = node.convertPointToBoxSpace(point);
+ Point localPoint = convertPointToNodeSpace(boxPoint);
+
+ return localPoint;
+ }
+
+ // Hit test
+
+ /// Returns true if the [point] is inside the node, the [point] is in the local coordinate system of the node.
+ ///
+ /// myNode.isPointInside(localPoint);
+ ///
+ /// [NodeWithSize] provides a basic bounding box check for this method, if you require a more detailed check this
+ /// method can be overridden.
+ ///
+ /// bool isPointInside (Point nodePoint) {
+ /// double minX = -size.width * pivot.x;
+ /// double minY = -size.height * pivot.y;
+ /// double maxX = minX + size.width;
+ /// double maxY = minY + size.height;
+ /// return (nodePoint.x >= minX && nodePoint.x < maxX &&
+ /// nodePoint.y >= minY && nodePoint.y < maxY);
+ /// }
+ bool isPointInside(Point point) {
+ assert(point != null);
+
+ return false;
+ }
+
+ // Rendering
+
+ void _visit(PaintingCanvas canvas) {
+ assert(canvas != null);
+ if (!visible) return;
+
+ _prePaint(canvas);
+ _visitChildren(canvas);
+ _postPaint(canvas);
+ }
+
+ void _prePaint(PaintingCanvas canvas) {
+ canvas.save();
+
+ // Get the transformation matrix and apply transform
+ canvas.concat(transformMatrix.storage);
+ }
+
+ /// Paints this node to the canvas.
+ ///
+ /// Subclasses, such as [Sprite], override this method to do the actual painting of the node. To do custom
+ /// drawing override this method and make calls to the [canvas] object. All drawing is done in the node's local
+ /// coordinate system, relative to the node's position. If you want to make the drawing relative to the node's
+ /// bounding box's origin, override [NodeWithSize] and call the applyTransformForPivot method before making calls for
+ /// drawing.
+ ///
+ /// void paint(PaintingCanvas canvas) {
+ /// canvas.save();
+ /// applyTransformForPivot(canvas);
+ ///
+ /// // Do painting here
+ ///
+ /// canvas.restore();
+ /// }
+ void paint(PaintingCanvas canvas) {
+ }
+
+ void _visitChildren(PaintingCanvas canvas) {
+ // Sort children if needed
+ _sortChildren();
+
+ int i = 0;
+
+ // Visit children behind this node
+ while (i < _children.length) {
+ Node child = _children[i];
+ if (child.zPosition >= 0.0) break;
+ child._visit(canvas);
+ i++;
+ }
+
+ // Paint this node
+ paint(canvas);
+
+ // Visit children in front of this node
+ while (i < _children.length) {
+ Node child = _children[i];
+ child._visit(canvas);
+ i++;
+ }
+ }
+
+ void _postPaint(PaintingCanvas canvas) {
+ canvas.restore();
+ }
+
+ // Receiving update calls
+
+ /// Called before a frame is drawn.
+ ///
+ /// Override this method to do any updates to the node or node tree before it's drawn to screen.
+ ///
+ /// // Make the node rotate at a fixed speed
+ /// void update(double dt) {
+ /// rotation = rotation * 10.0 * dt;
+ /// }
+ void update(double dt) {
+ }
+
+ /// Called whenever the [SpriteBox] is modified or resized, or if the device is rotated.
+ ///
+ /// Override this method to do any updates that may be necessary to correctly display the node or node tree with the
+ /// new layout of the [SpriteBox].
+ ///
+ /// void spriteBoxPerformedLayout() {
+ /// // Move some stuff around here
+ /// }
+ void spriteBoxPerformedLayout() {
+ }
+
+ // Handling user interaction
+
+ /// The node will receive user interactions, such as pointer (touch or mouse) events.
+ ///
+ /// class MyCustomNode extends NodeWithSize {
+ /// userInteractionEnabled = true;
+ /// }
+ bool get userInteractionEnabled => _userInteractionEnabled;
+
+ void set userInteractionEnabled(bool userInteractionEnabled) {
+ _userInteractionEnabled = userInteractionEnabled;
+ if (_spriteBox != null) _spriteBox._eventTargets = null;
+ }
+
+ /// Handles an event, such as a pointer (touch or mouse) event.
+ ///
+ /// Override this method to handle events. The node will only receive events if the [userInteractionEnabled] property
+ /// is set to true and the [isPointInside] method returns true for the position of the pointer down event (default
+ /// behavior provided by [NodeWithSize]). Unless [handleMultiplePointers] is set to true, the node will only receive
+ /// events for the first pointer that is down.
+ ///
+ /// Return true if the node has consumed the event, if an event is consumed it will not be passed on to nodes behind
+ /// the current node.
+ ///
+ /// // MyTouchySprite gets transparent when we touch it
+ /// class MyTouchySprite extends Sprite {
+ ///
+ /// MyTouchySprite(Image img) : super (img) {
+ /// userInteractionEnabled = true;
+ /// }
+ ///
+ /// bool handleEvent(SpriteBoxEvent event) {
+ /// if (event.type == 'pointerdown) {
+ /// opacity = 0.5;
+ /// }
+ /// else if (event.type == 'pointerup') {
+ /// opacity = 1.0;
+ /// }
+ /// return true;
+ /// }
+ /// }
+ bool handleEvent(SpriteBoxEvent event) {
+ return false;
+ }
+}
\ No newline at end of file
diff --git a/packages/flutter/example/game/lib/node_with_size.dart b/packages/flutter/example/game/lib/node_with_size.dart
new file mode 100644
index 0000000..061dec4
--- /dev/null
+++ b/packages/flutter/example/game/lib/node_with_size.dart
@@ -0,0 +1,60 @@
+part of sprites;
+
+/// The super class of any [Node] that has a size.
+///
+/// NodeWithSize adds the ability for a node to have a size and a pivot point.
+class NodeWithSize extends Node {
+
+ /// Changing the size will affect the size of the rendering of the node.
+ ///
+ /// myNode.size = new Size(1024.0, 1024.0);
+ Size size;
+
+ /// The normalized point which the node is transformed around.
+ ///
+ /// // Position myNode from is middle top
+ /// myNode.pivot = new Point(0.5, 0.0);
+ Point pivot;
+
+ /// Creates a new NodeWithSize.
+ ///
+ /// The default [size] is zero and the default [pivot] point is the origin. Subclasses may change the default values.
+ ///
+ /// var myNodeWithSize = new NodeWithSize(new Size(1024.0, 1024.0));
+ NodeWithSize([Size this.size, Point this.pivot]) {
+ if (size == null) size = Size.zero;
+ if (pivot == null) pivot = Point.origin;
+ }
+
+ /// Call this method in your [paint] method if you want the origin of your drawing to be the top left corner of the
+ /// node's bounding box.
+ ///
+ /// If you use this method you will need to save and restore your canvas at the beginning and
+ /// end of your [paint] method.
+ ///
+ /// void paint(PaintingCanvas canvas) {
+ /// canvas.save();
+ /// applyTransformForPivot(canvas);
+ ///
+ /// // Do painting here
+ ///
+ /// canvas.restore();
+ /// }
+ void applyTransformForPivot(PaintingCanvas canvas) {
+ if (pivot.x != 0 || pivot.y != 0) {
+ double pivotInPointsX = size.width * pivot.x;
+ double pivotInPointsY = size.height * pivot.y;
+ canvas.translate(-pivotInPointsX, -pivotInPointsY);
+ }
+ }
+
+ bool isPointInside (Point nodePoint) {
+
+ double minX = -size.width * pivot.x;
+ double minY = -size.height * pivot.y;
+ double maxX = minX + size.width;
+ double maxY = minY + size.height;
+ return (nodePoint.x >= minX && nodePoint.x < maxX &&
+ nodePoint.y >= minY && nodePoint.y < maxY);
+ }
+}
diff --git a/packages/flutter/example/game/lib/particle_system.dart b/packages/flutter/example/game/lib/particle_system.dart
new file mode 100644
index 0000000..01e0d65
--- /dev/null
+++ b/packages/flutter/example/game/lib/particle_system.dart
@@ -0,0 +1,320 @@
+part of sprites;
+
+class _Particle {
+ Vector2 pos;
+ Vector2 startPos;
+
+ double colorPos;
+ double deltaColorPos;
+
+ double size;
+ double deltaSize;
+
+ double rotation;
+ double deltaRotation;
+
+ double timeToLive;
+
+ Vector2 dir;
+ double radialAccel;
+ double tangentialAccel;
+
+ ColorSequence colorSequence;
+}
+
+
+class ParticleSystem extends Node {
+
+ Texture texture;
+
+ double life;
+ double lifeVar;
+
+ Point posVar;
+
+ double startSize;
+ double startSizeVar;
+
+ double endSize;
+ double endSizeVar;
+
+ double startRotation;
+ double startRotationVar;
+
+ double endRotation;
+ double endRotationVar;
+
+ bool rotateToMovement;
+
+ double direction;
+ double directionVar;
+
+ double speed;
+ double speedVar;
+
+ double radialAcceleration;
+ double radialAccelerationVar;
+
+ double tangentialAcceleration;
+ double tangentialAccelerationVar;
+
+ Vector2 gravity;
+
+ int maxParticles;
+ int numParticlesToEmit;
+ double emissionRate;
+ bool autoRemoveOnFinish;
+
+ ColorSequence colorSequence;
+ int alphaVar;
+ int redVar;
+ int greenVar;
+ int blueVar;
+ TransferMode colorTransferMode;
+ TransferMode transferMode;
+
+ List<_Particle> _particles;
+
+ double _emitCounter;
+ // Not yet used:
+ // double _elapsedTime;
+ int _numEmittedParticles = 0;
+
+ math.Random _rand;
+
+ ParticleSystem(this.texture,
+ {this.life: 1.5,
+ this.lifeVar: 1.0,
+ this.posVar: Point.origin,
+ this.startSize: 2.5,
+ this.startSizeVar: 0.5,
+ this.endSize: 0.0,
+ this.endSizeVar: 0.0,
+ this.startRotation: 0.0,
+ this.startRotationVar: 0.0,
+ this.endRotation: 0.0,
+ this.endRotationVar: 0.0,
+ this.rotateToMovement : false,
+ this.direction: 0.0,
+ this.directionVar: 360.0,
+ this.speed: 100.0,
+ this.speedVar: 50.0,
+ this.radialAcceleration: 0.0,
+ this.radialAccelerationVar: 0.0,
+ this.tangentialAcceleration: 0.0,
+ this.tangentialAccelerationVar: 0.0,
+ this.gravity,
+ this.maxParticles: 100,
+ this.emissionRate: 50.0,
+ this.colorSequence,
+ this.alphaVar: 0,
+ this.redVar: 0,
+ this.greenVar: 0,
+ this.blueVar: 0,
+ this.colorTransferMode: TransferMode.multiply,
+ this.transferMode: TransferMode.plus,
+ this.numParticlesToEmit: 0,
+ this.autoRemoveOnFinish: true}) {
+ _particles = new List<_Particle>();
+ _rand = new math.Random();
+ _emitCounter = 0.0;
+ // _elapsedTime = 0.0;
+ if (gravity == null) gravity = new Vector2.zero();
+ if (colorSequence == null) colorSequence = new ColorSequence.fromStartAndEndColor(new Color(0xffffffff), new Color(0x00ffffff));
+ }
+
+ void update(double dt) {
+
+ // Create new particles
+ double rate = 1.0 / emissionRate;
+
+ if (_particles.length < maxParticles) {
+ _emitCounter += dt;
+ }
+
+ while(_particles.length < maxParticles
+ && _emitCounter > rate
+ && (numParticlesToEmit == 0 || _numEmittedParticles < numParticlesToEmit)) {
+ // Add a new particle
+ _addParticle();
+ _emitCounter -= rate;
+ }
+
+ // _elapsedTime += dt;
+
+ // Iterate over all particles
+ for (int i = _particles.length -1; i >= 0; i--) {
+ _Particle particle = _particles[i];
+
+ // Manage life time
+ particle.timeToLive -= dt;
+ if (particle.timeToLive <= 0) {
+ _particles.removeAt(i);
+ continue;
+ }
+
+ // Update the particle
+
+ // Radial acceleration
+ Vector2 radial;
+ if (particle.pos[0] != 0 || particle.pos[1] != 0) {
+ radial = new Vector2.copy(particle.pos).normalize();
+ } else {
+ radial = new Vector2.zero();
+ }
+ Vector2 tangential = new Vector2.copy(radial);
+ radial.scale(particle.radialAccel);
+
+ // Tangential acceleration
+ double newY = tangential.x;
+ tangential.x = -tangential.y;
+ tangential.y = newY;
+ tangential.scale(particle.tangentialAccel);
+
+ // (gravity + radial + tangential) * dt
+ Vector2 accel = (gravity + radial + tangential).scale(dt);
+ particle.dir += accel;
+ particle.pos += new Vector2.copy(particle.dir).scale(dt);
+
+ // Size
+ particle.size = math.max(particle.size + particle.deltaSize * dt, 0.0);
+
+ // Angle
+ particle.rotation += particle.deltaRotation * dt;
+
+ // Color
+ particle.colorPos = math.min(particle.colorPos + particle.deltaColorPos * dt, 1.0);
+ }
+
+ if (autoRemoveOnFinish && _particles.length == 0 && _numEmittedParticles > 0) {
+ if (parent != null) removeFromParent();
+ }
+ }
+
+ void _addParticle() {
+
+ _Particle particle = new _Particle();
+
+ // Time to live
+ particle.timeToLive = math.max(life + lifeVar * randMinus1To1(), 0.0);
+
+ // Position
+ Point srcPos = Point.origin;
+ particle.pos = new Vector2(srcPos.x + posVar.x * randMinus1To1(),
+ srcPos.y + posVar.y * randMinus1To1());
+
+ // Size
+ particle.size = math.max(startSize + startSizeVar * randMinus1To1(), 0.0);
+ double endSizeFinal = math.max(endSize + endSizeVar * randMinus1To1(), 0.0);
+ particle.deltaSize = (endSizeFinal - particle.size) / particle.timeToLive;
+
+ // Rotation
+ particle.rotation = startRotation + startRotationVar * randMinus1To1();
+ double endRotationFinal = endRotation + endRotationVar * randMinus1To1();
+ particle.deltaRotation = (endRotationFinal - particle.rotation) / particle.timeToLive;
+
+ // Direction
+ double dirRadians = convertDegrees2Radians(direction + directionVar * randMinus1To1());
+ Vector2 dirVector = new Vector2(math.cos(dirRadians), math.sin(dirRadians));
+ double speedFinal = speed + speedVar * randMinus1To1();
+ particle.dir = dirVector.scale(speedFinal);
+
+ // Radial acceleration
+ particle.radialAccel = radialAcceleration + radialAccelerationVar * randMinus1To1();
+
+ // Tangential acceleration
+ particle.tangentialAccel = tangentialAcceleration + tangentialAccelerationVar * randMinus1To1();
+
+ // Color
+ particle.colorPos = 0.0;
+ particle.deltaColorPos = 1.0 / particle.timeToLive;
+
+ if (alphaVar != 0 || redVar != 0 || greenVar != 0 || blueVar != 0) {
+ particle.colorSequence = new ColorSequence.copyWithVariance(colorSequence, alphaVar, redVar, greenVar, blueVar);
+ }
+
+ _particles.add(particle);
+ _numEmittedParticles++;
+ }
+
+ void paint(PaintingCanvas canvas) {
+
+ List<RSTransform> transforms = [];
+ List<Rect> rects = [];
+ List<Color> colors = [];
+
+ for (_Particle particle in _particles) {
+ // Transform
+ double scos;
+ double ssin;
+ if (rotateToMovement) {
+ double extraRotation = math.atan2(particle.dir[1], particle.dir[0]);
+ scos = math.cos(convertDegrees2Radians(particle.rotation) + extraRotation) * particle.size;
+ ssin = math.sin(convertDegrees2Radians(particle.rotation) + extraRotation) * particle.size;
+ } else {
+ scos = math.cos(convertDegrees2Radians(particle.rotation)) * particle.size;
+ ssin = math.sin(convertDegrees2Radians(particle.rotation)) * particle.size;
+ }
+ RSTransform transform = new RSTransform(scos, ssin, particle.pos[0], particle.pos[1]);
+ transforms.add(transform);
+
+ // Rect
+ Rect rect = texture.frame;
+ rects.add(rect);
+
+ // Color
+ Color particleColor;
+ if (particle.colorSequence != null) {
+ particleColor = particle.colorSequence.colorAtPosition(particle.colorPos);
+ } else {
+ particleColor = colorSequence.colorAtPosition(particle.colorPos);
+ }
+ colors.add(particleColor);
+ }
+
+ drawAtlas(canvas, texture.image, transforms, rects, colors, TransferMode.modulate,
+ new Paint()..setTransferMode(transferMode));
+ }
+
+ double randMinus1To1() => _rand.nextDouble() * 2.0 - 1.0;
+}
+
+// TODO: Needs bindings to Skia method in SkCanvas (exclude canvas parameter)
+void drawAtlas(Canvas canvas, Image image, List<RSTransform> transforms, List<Rect> rects, List<Color> colors,
+ TransferMode transferMode, Paint paint) {
+ assert(transforms.length == rects.length && transforms.length == colors.length);
+
+ Texture mainTexture = new Texture(image);
+
+ for (int i = 0; i < transforms.length; i++) {
+ RSTransform transform = transforms[i];
+ Rect rect = rects[i];
+ Color color = colors[i];
+
+ canvas.save();
+
+ Matrix4 matrix = new Matrix4(transform.scos, transform.ssin, 0.0, 0.0,
+ -transform.ssin, transform.scos, 0.0, 0.0,
+ 0.0, 0.0, 1.0, 0.0,
+ transform.tx, transform.ty, 0.0, 1.0);
+ canvas.concat(matrix.storage);
+
+ paint.setColorFilter(new ColorFilter.mode(color, transferMode));
+ paint.color = color;
+
+ Texture texture = mainTexture.textureFromRect(rect);
+ texture.drawTexture(canvas, new Point(-texture.size.width/2.0, -texture.size.height/2.0), paint);
+
+ canvas.restore();
+ }
+}
+
+// TODO: Needs bindings to Skia SkRSXform
+class RSTransform {
+ double scos;
+ double ssin;
+ double tx;
+ double ty;
+
+ RSTransform(this.scos, this.ssin, this.tx, this.ty);
+}
diff --git a/packages/flutter/example/game/lib/sprite.dart b/packages/flutter/example/game/lib/sprite.dart
new file mode 100644
index 0000000..0eea480
--- /dev/null
+++ b/packages/flutter/example/game/lib/sprite.dart
@@ -0,0 +1,114 @@
+part of sprites;
+
+/// A Sprite is a [Node] that renders a bitmap image to the screen.
+class Sprite extends NodeWithSize {
+
+ /// The texture that the sprite will render to screen.
+ ///
+ /// If the texture is null, the sprite will be rendered as a red square
+ /// marking the bounds of the sprite.
+ ///
+ /// mySprite.texture = myTexture;
+ Texture texture;
+
+ /// If true, constrains the proportions of the image by scaling it down, if its proportions doesn't match the [size].
+ ///
+ /// mySprite.constrainProportions = true;
+ bool constrainProportions = false;
+ double _opacity = 1.0;
+
+ /// The color to draw on top of the sprite, null if no color overlay is used.
+ ///
+ /// // Color the sprite red
+ /// mySprite.colorOverlay = new Color(0x77ff0000);
+ Color colorOverlay;
+
+ /// The transfer mode used when drawing the sprite to screen.
+ ///
+ /// // Add the colors of the sprite with the colors of the background
+ /// mySprite.transferMode = TransferMode.plusMode;
+ TransferMode transferMode;
+
+ /// Creates a new sprite from the provided [texture].
+ ///
+ /// var mySprite = new Sprite(myTexture)
+ Sprite([this.texture]) {
+ if (texture != null) {
+ size = texture.size;
+ pivot = texture.pivot;
+ } else {
+ pivot = new Point(0.5, 0.5);
+ }
+ }
+
+ /// Creates a new sprite from the provided [image].
+ ///
+ /// var mySprite = new Sprite.fromImage(myImage);
+ Sprite.fromImage(Image image) {
+ assert(image != null);
+
+ texture = new Texture(image);
+ size = texture.size;
+
+ pivot = new Point(0.5, 0.5);
+ }
+
+ /// The opacity of the sprite in the range 0.0 to 1.0.
+ ///
+ /// mySprite.opacity = 0.5;
+ double get opacity => _opacity;
+
+ void set opacity(double opacity) {
+ assert(opacity != null);
+ assert(opacity >= 0.0 && opacity <= 1.0);
+ _opacity = opacity;
+ }
+
+ void paint(PaintingCanvas canvas) {
+ canvas.save();
+
+ // Account for pivot point
+ applyTransformForPivot(canvas);
+
+ if (texture != null) {
+ double w = texture.size.width;
+ double h = texture.size.height;
+
+ if (w <= 0 || h <= 0) return;
+
+ double scaleX = size.width / w;
+ double scaleY = size.height / h;
+
+ if (constrainProportions) {
+ // Constrain proportions, using the smallest scale and by centering the image
+ if (scaleX < scaleY) {
+ canvas.translate(0.0, (size.height - scaleX * h) / 2.0);
+ scaleY = scaleX;
+ } else {
+ canvas.translate((size.width - scaleY * w) / 2.0, 0.0);
+ scaleX = scaleY;
+ }
+ }
+
+ canvas.scale(scaleX, scaleY);
+
+ // Setup paint object for opacity and transfer mode
+ Paint paint = new Paint();
+ paint.color = new Color.fromARGB((255.0*_opacity).toInt(), 255, 255, 255);
+ if (colorOverlay != null) {
+ paint.setColorFilter(new ColorFilter.mode(colorOverlay, TransferMode.srcATop));
+ }
+ if (transferMode != null) {
+ paint.setTransferMode(transferMode);
+ }
+
+ // Do actual drawing of the sprite
+ texture.drawTexture(canvas, Point.origin, paint);
+ } else {
+ // Paint a red square for missing texture
+ canvas.drawRect(new Rect.fromLTRB(0.0, 0.0, size.width, size.height),
+ new Paint()..color = const Color.fromARGB(255, 255, 0, 0));
+ }
+ canvas.restore();
+ }
+}
diff --git a/packages/flutter/example/game/lib/sprite_box.dart b/packages/flutter/example/game/lib/sprite_box.dart
new file mode 100644
index 0000000..b33dd30
--- /dev/null
+++ b/packages/flutter/example/game/lib/sprite_box.dart
@@ -0,0 +1,393 @@
+part of sprites;
+
+/// Options for setting up a [SpriteBox].
+///
+/// * [nativePoints], use the same points as the parent [Widget].
+/// * [letterbox], use the size of the root node for the coordinate system, constrain the aspect ratio and trim off
+/// areas that end up outside the screen.
+/// * [stretch], use the size of the root node for the coordinate system, scale it to fit the size of the box.
+/// * [scaleToFit], similar to the letterbox option, but instead of trimming areas the sprite system will be scaled
+/// down to fit the box.
+/// * [fixedWidth], uses the width of the root node to set the size of the coordinate system, this option will change
+/// the height of the root node to fit the box.
+/// * [fixedHeight], uses the height of the root node to set the size of the coordinate system, this option will change
+/// the width of the root node to fit the box.
+enum SpriteBoxTransformMode {
+ nativePoints,
+ letterbox,
+ stretch,
+ scaleToFit,
+ fixedWidth,
+ fixedHeight,
+}
+
+class SpriteBox extends RenderBox {
+
+ // Member variables
+
+ // Root node for drawing
+ NodeWithSize _rootNode;
+
+ // Tracking of frame rate and updates
+ double _lastTimeStamp;
+ int _numFrames = 0;
+ double _frameRate = 0.0;
+
+ // Transformation mode
+ SpriteBoxTransformMode _transformMode;
+
+ /// The transform mode used by the [SpriteBox].
+ SpriteBoxTransformMode get transformMode => _transformMode;
+
+ // Cached transformation matrix
+ Matrix4 _transformMatrix;
+
+ List<Node> _eventTargets;
+
+ // Setup
+
+ /// Creates a new SpriteBox with a node as its content, by default uses letterboxing.
+ ///
+ /// The [rootNode] provides the content of the node tree, typically it's a custom subclass of [NodeWithSize]. The
+ /// [mode] provides different ways to scale the content to best fit it to the screen. In most cases it's preferred to
+ /// use a [SpriteWidget] that automatically wraps the SpriteBox.
+ ///
+ /// var spriteBox = new SpriteBox(myNode, SpriteBoxTransformMode.fixedHeight);
+ SpriteBox(NodeWithSize rootNode, [SpriteBoxTransformMode mode = SpriteBoxTransformMode.letterbox]) {
+ assert(rootNode != null);
+ assert(rootNode._spriteBox == null);
+
+ // Setup root node
+ _rootNode = rootNode;
+
+ // Assign SpriteBox reference to all the nodes
+ _addSpriteBoxReference(_rootNode);
+
+ // Setup transform mode
+ _transformMode = mode;
+
+ _scheduleTick();
+ }
+
+ void _addSpriteBoxReference(Node node) {
+ node._spriteBox = this;
+ for (Node child in node._children) {
+ _addSpriteBoxReference(child);
+ }
+ }
+
+ // Properties
+
+ /// The root node of the node tree that is rendered by this box.
+ ///
+ /// var rootNode = mySpriteBox.rootNode;
+ NodeWithSize get rootNode => _rootNode;
+
+ void performLayout() {
+ size = constraints.biggest;
+ _invalidateTransformMatrix();
+ _callSpriteBoxPerformedLayout(_rootNode);
+ }
+
+ // Event handling
+
+ void _addEventTargets(Node node, List<Node> eventTargets) {
+ List children = node.children;
+ int i = 0;
+
+ // Add childrens that are behind this node
+ while (i < children.length) {
+ Node child = children[i];
+ if (child.zPosition >= 0.0) break;
+ _addEventTargets(child, eventTargets);
+ i++;
+ }
+
+ // Add this node
+ if (node.userInteractionEnabled) {
+ eventTargets.add(node);
+ }
+
+ // Add children in front of this node
+ while (i < children.length) {
+ Node child = children[i];
+ _addEventTargets(child, eventTargets);
+ i++;
+ }
+ }
+
+ void handleEvent(Event event, _SpriteBoxHitTestEntry entry) {
+ if (event is PointerEvent) {
+
+ if (event.type == 'pointerdown') {
+ // Build list of event targets
+ if (_eventTargets == null) {
+ _eventTargets = [];
+ _addEventTargets(_rootNode, _eventTargets);
+ }
+
+ // Find the once that are hit by the pointer
+ List<Node> nodeTargets = [];
+ for (int i = _eventTargets.length - 1; i >= 0; i--) {
+ Node node = _eventTargets[i];
+
+ // Check if the node is ready to handle a pointer
+ if (node.handleMultiplePointers || node._handlingPointer == null) {
+ // Do the hit test
+ Point posInNodeSpace = node.convertPointToNodeSpace(entry.localPosition);
+ if (node.isPointInside(posInNodeSpace)) {
+ nodeTargets.add(node);
+ node._handlingPointer = event.pointer;
+ }
+ }
+ }
+
+ entry.nodeTargets = nodeTargets;
+ }
+
+ // Pass the event down to nodes that were hit by the pointerdown
+ List<Node> targets = entry.nodeTargets;
+ for (Node node in targets) {
+ // Check if this event should be dispatched
+ if (node.handleMultiplePointers || event.pointer == node._handlingPointer) {
+ // Dispatch event
+ bool consumedEvent = node.handleEvent(new SpriteBoxEvent(new Point(event.x, event.y), event.type, event.pointer));
+ if (consumedEvent == null || consumedEvent) break;
+ }
+ }
+
+ // De-register pointer for nodes that doesn't handle multiple pointers
+ for (Node node in targets) {
+ if (event.type == 'pointerup' || event.type == 'pointercancel') {
+ node._handlingPointer = null;
+ }
+ }
+ }
+ }
+
+ bool hitTest(HitTestResult result, { Point position }) {
+ result.add(new _SpriteBoxHitTestEntry(this, position));
+ return true;
+ }
+
+ // Rendering
+
+ /// The transformation matrix used to transform the root node to the space of the box.
+ ///
+ /// It's uncommon to need access to this property.
+ ///
+ /// var matrix = mySpriteBox.transformMatrix;
+ Matrix4 get transformMatrix {
+ // Get cached matrix if available
+ if (_transformMatrix != null) {
+ return _transformMatrix;
+ }
+
+ _transformMatrix = new Matrix4.identity();
+
+ // Calculate matrix
+ double scaleX = 1.0;
+ double scaleY = 1.0;
+ double offsetX = 0.0;
+ double offsetY = 0.0;
+
+ double systemWidth = rootNode.size.width;
+ double systemHeight = rootNode.size.height;
+
+ switch(_transformMode) {
+ case SpriteBoxTransformMode.stretch:
+ scaleX = size.width/systemWidth;
+ scaleY = size.height/systemHeight;
+ break;
+ case SpriteBoxTransformMode.letterbox:
+ scaleX = size.width/systemWidth;
+ scaleY = size.height/systemHeight;
+ if (scaleX > scaleY) {
+ scaleY = scaleX;
+ offsetY = (size.height - scaleY * systemHeight)/2.0;
+ } else {
+ scaleX = scaleY;
+ offsetX = (size.width - scaleX * systemWidth)/2.0;
+ }
+ break;
+ case SpriteBoxTransformMode.scaleToFit:
+ scaleX = size.width/systemWidth;
+ scaleY = size.height/systemHeight;
+ if (scaleX < scaleY) {
+ scaleY = scaleX;
+ offsetY = (size.height - scaleY * systemHeight)/2.0;
+ } else {
+ scaleX = scaleY;
+ offsetX = (size.width - scaleX * systemWidth)/2.0;
+ }
+ break;
+ case SpriteBoxTransformMode.fixedWidth:
+ scaleX = size.width/systemWidth;
+ scaleY = scaleX;
+ systemHeight = size.height/scaleX;
+ rootNode.size = new Size(systemWidth, systemHeight);
+ break;
+ case SpriteBoxTransformMode.fixedHeight:
+ scaleY = size.height/systemHeight;
+ scaleX = scaleY;
+ systemWidth = size.width/scaleY;
+ rootNode.size = new Size(systemWidth, systemHeight);
+ break;
+ case SpriteBoxTransformMode.nativePoints:
+ break;
+ default:
+ assert(false);
+ break;
+ }
+
+ _transformMatrix.translate(offsetX, offsetY);
+ _transformMatrix.scale(scaleX, scaleY);
+
+ return _transformMatrix;
+ }
+
+ void _invalidateTransformMatrix() {
+ _transformMatrix = null;
+ _rootNode._invalidateToBoxTransformMatrix();
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ canvas.save();
+
+ // Move to correct coordinate space before drawing
+ canvas.translate(offset.dx, offset.dy);
+ canvas.concat(transformMatrix.storage);
+
+ // Draw the sprite tree
+ _rootNode._visit(canvas);
+
+ canvas.restore();
+ }
+
+ // Updates
+
+ void _scheduleTick() {
+ scheduler.requestAnimationFrame(_tick);
+ }
+
+ void _tick(double timeStamp) {
+
+ // Calculate the time between frames in seconds
+ if (_lastTimeStamp == null) _lastTimeStamp = timeStamp;
+ double delta = (timeStamp - _lastTimeStamp) / 1000;
+ _lastTimeStamp = timeStamp;
+
+ // Count the number of frames we've been running
+ _numFrames += 1;
+
+ _frameRate = 1.0/delta;
+
+ // Print frame rate
+ if (_numFrames % 60 == 0) print("delta: $delta fps: $_frameRate");
+
+ _runActions(_rootNode, delta);
+ _callUpdate(_rootNode, delta);
+ _scheduleTick();
+ markNeedsPaint();
+ }
+
+ void _runActions(Node node, double dt) {
+ if (node._actions != null) {
+ node._actions.step(dt);
+ }
+ for (int i = node.children.length - 1; i >= 0; i--) {
+ Node child = node.children[i];
+ _runActions(child, dt);
+ }
+ }
+
+ void _callUpdate(Node node, double dt) {
+ node.update(dt);
+ for (int i = node.children.length - 1; i >= 0; i--) {
+ Node child = node.children[i];
+ if (!child.paused) {
+ _callUpdate(child, dt);
+ }
+ }
+ }
+
+ void _callSpriteBoxPerformedLayout(Node node) {
+ node.spriteBoxPerformedLayout();
+ for (Node child in node.children) {
+ _callSpriteBoxPerformedLayout(child);
+ }
+ }
+
+ // Hit tests
+
+ /// Finds all nodes at a position defined in the box's coordinates.
+ ///
+ /// Use this method with caution. It searches the complete node tree to locate the nodes, which can be slow if the
+ /// node tree is large.
+ ///
+ /// List nodes = mySpriteBox.findNodesAtPosition(new Point(50.0, 50.0));
+ List<Node> findNodesAtPosition(Point position) {
+ assert(position != null);
+
+ List<Node> nodes = [];
+
+ // Traverse the render tree and find objects at the position
+ _addNodesAtPosition(_rootNode, position, nodes);
+
+ return nodes;
+ }
+
+ _addNodesAtPosition(Node node, Point position, List<Node> list) {
+ // Visit children first
+ for (Node child in node.children) {
+ _addNodesAtPosition(child, position, list);
+ }
+ // Do the hit test
+ Point posInNodeSpace = node.convertPointToNodeSpace(position);
+ if (node.isPointInside(posInNodeSpace)) {
+ list.add(node);
+ }
+ }
+}
+
+class _SpriteBoxHitTestEntry extends BoxHitTestEntry {
+ List<Node> nodeTargets;
+ _SpriteBoxHitTestEntry(RenderBox target, Point localPosition) : super(target, localPosition);
+}
+
+/// An event that is passed down the node tree when pointer events occur. The SpriteBoxEvent is typically handled in
+/// the handleEvent method of [Node].
+class SpriteBoxEvent {
+
+ /// The position of the event in box coordinates.
+ ///
+ /// You can use the convertPointToNodeSpace of [Node] to convert the position to local coordinates.
+ ///
+ /// bool handleEvent(SpriteBoxEvent event) {
+ /// Point localPosition = convertPointToNodeSpace(event.boxPosition);
+ /// if (event.type == 'pointerdown') {
+ /// // Do something!
+ /// }
+ /// }
+ final Point boxPosition;
+
+ /// The type of event, there are currently four valid types, 'pointerdown', 'pointermoved', 'pointerup', and
+ /// 'pointercancel'.
+ ///
+ /// if (event.type == 'pointerdown') {
+ /// // Do something!
+ /// }
+ final String type;
+
+ /// The id of the pointer. Each pointer on the screen will have a unique pointer id.
+ ///
+ /// if (event.pointer == firstPointerId) {
+ /// // Do something
+ /// }
+ final int pointer;
+
+ /// Creates a new SpriteBoxEvent, typically this is done internally inside the SpriteBox.
+ ///
+ /// var event = new SpriteBoxEvent(new Point(50.0, 50.0), 'pointerdown', 0);
+ SpriteBoxEvent(this.boxPosition, this.type, this.pointer);
+}
diff --git a/packages/flutter/example/game/lib/sprite_widget.dart b/packages/flutter/example/game/lib/sprite_widget.dart
new file mode 100644
index 0000000..95934ae
--- /dev/null
+++ b/packages/flutter/example/game/lib/sprite_widget.dart
@@ -0,0 +1,38 @@
+part of sprites;
+
+/// A widget that uses a [SpriteBox] to render a sprite node tree to the screen.
+class SpriteWidget extends OneChildRenderObjectWrapper {
+
+ /// The rootNode of the sprite node tree.
+ ///
+ /// var node = mySpriteWidget.rootNode;
+ final NodeWithSize rootNode;
+
+ /// The transform mode used to fit the sprite node tree to the size of the widget.
+ final SpriteBoxTransformMode transformMode;
+
+ /// Creates a new sprite widget with [rootNode] as its content.
+ ///
+ /// The widget will setup the coordinate space for the sprite node tree using the size of the [rootNode] in
+ /// combination with the supplied [transformMode]. By default the letterbox transform mode is used. See
+ /// [SpriteBoxTransformMode] for more details on the different modes.
+ ///
+ /// The most common way to setup the sprite node graph is to subclass [NodeWithSize] and pass it to the sprite widget.
+ /// In the custom subclass it's possible to build the node graph, do animations and handle user events.
+ ///
+ /// var mySpriteTree = new MyCustomNodeWithSize();
+ /// var mySpriteWidget = new SpriteWidget(mySpriteTree, SpriteBoxTransformMode.fixedHeight);
+ SpriteWidget(this.rootNode, [this.transformMode = SpriteBoxTransformMode.letterbox]);
+
+ SpriteBox get root => super.root;
+
+ SpriteBox createNode() => new SpriteBox(rootNode, transformMode);
+
+ void syncRenderObject(SpriteWidget old) {
+ super.syncRenderObject(old);
+
+ // SpriteBox doesn't allow mutation of these properties
+ assert(rootNode == root.rootNode);
+ assert(transformMode == root._transformMode);
+ }
+}
\ No newline at end of file
diff --git a/packages/flutter/example/game/lib/sprites.dart b/packages/flutter/example/game/lib/sprites.dart
new file mode 100644
index 0000000..12a1d99
--- /dev/null
+++ b/packages/flutter/example/game/lib/sprites.dart
@@ -0,0 +1,31 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+library sprites;
+
+import 'dart:async';
+import 'dart:convert';
+import 'dart:math' as math;
+import 'dart:sky';
+
+import 'package:sky/animation/curves.dart';
+import 'package:sky/base/scheduler.dart' as scheduler;
+import 'package:sky/mojo/asset_bundle.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/widgets/widget.dart';
+import 'package:vector_math/vector_math.dart';
+
+part 'action.dart';
+part 'color_secuence.dart';
+part 'image_map.dart';
+part 'node.dart';
+part 'node_with_size.dart';
+part 'particle_system.dart';
+part 'sprite.dart';
+part 'spritesheet.dart';
+part 'sprite_box.dart';
+part 'sprite_widget.dart';
+part 'texture.dart';
+part 'util.dart';
diff --git a/packages/flutter/example/game/lib/spritesheet.dart b/packages/flutter/example/game/lib/spritesheet.dart
new file mode 100644
index 0000000..39bf503
--- /dev/null
+++ b/packages/flutter/example/game/lib/spritesheet.dart
@@ -0,0 +1,74 @@
+part of sprites;
+
+/// A sprite sheet packs a number of smaller images into a single large image.
+///
+/// The placement of the smaller images are defined by a json file. The larger image and json file is typically created
+/// by a tool such as TexturePacker. The [SpriteSheet] class will take a reference to a larger image and a json string.
+/// From the image and the string the [SpriteSheet] creates a number of [Texture] objects. The names of the frames in
+/// the sprite sheet definition are used to reference the different textures.
+class SpriteSheet {
+
+ Image _image;
+ Map<String, Texture> _textures = new Map();
+
+ /// Creates a new sprite sheet from an [_image] and a sprite sheet [jsonDefinition].
+ ///
+ /// var mySpriteSheet = new SpriteSheet(myImage, jsonString);
+ SpriteSheet(this._image, String jsonDefinition) {
+ assert(_image != null);
+ assert(jsonDefinition != null);
+
+ JsonDecoder decoder = new JsonDecoder();
+ Map file = decoder.convert(jsonDefinition);
+ assert(file != null);
+
+ List frames = file["frames"];
+
+ for (Map frameInfo in frames) {
+ String fileName = frameInfo["filename"];
+ Rect frame = _readJsonRect(frameInfo["frame"]);
+ bool rotated = frameInfo["rotated"];
+ bool trimmed = frameInfo["trimmed"];
+ Rect spriteSourceSize = _readJsonRect(frameInfo["spriteSourceSize"]);
+ Size sourceSize = _readJsonSize(frameInfo["sourceSize"]);
+ Point pivot = _readJsonPoint(frameInfo["pivot"]);
+
+ var texture = new Texture._fromSpriteFrame(_image, fileName, sourceSize, rotated, trimmed, frame,
+ spriteSourceSize, pivot);
+ _textures[fileName] = texture;
+ }
+ }
+
+ Rect _readJsonRect(Map data) {
+ num x = data["x"];
+ num y = data["y"];
+ num w = data["w"];
+ num h = data["h"];
+
+ return new Rect.fromLTRB(x.toDouble(), y.toDouble(), (x + w).toDouble(), (y + h).toDouble());
+ }
+
+ Size _readJsonSize(Map data) {
+ num w = data["w"];
+ num h = data["h"];
+
+ return new Size(w.toDouble(), h.toDouble());
+ }
+
+ Point _readJsonPoint(Map data) {
+ num x = data["x"];
+ num y = data["y"];
+
+ return new Point(x.toDouble(), y.toDouble());
+ }
+
+ /// The image used by the sprite sheet.
+ ///
+ /// var spriteSheetImage = mySpriteSheet.image;
+ Image get image => _image;
+
+ /// Returns a texture by its name.
+ ///
+ /// var myTexture = mySpriteSheet["example.png"];
+ Texture operator [](String fileName) => _textures[fileName];
+}
diff --git a/packages/flutter/example/game/lib/texture.dart b/packages/flutter/example/game/lib/texture.dart
new file mode 100644
index 0000000..e806878
--- /dev/null
+++ b/packages/flutter/example/game/lib/texture.dart
@@ -0,0 +1,110 @@
+part of sprites;
+
+/// A texture represents a rectangular area of an image and is typically used to draw a sprite to the screen.
+///
+/// Normally you get a reference to a texture from a [SpriteSheet], but you can also create one from an [Image].
+class Texture {
+ /// The image that this texture is a part of.
+ ///
+ /// var textureImage = myTexture.image;
+ final Image image;
+
+ /// The logical size of the texture, before being trimmed by the texture packer.
+ ///
+ /// var textureSize = myTexture.size;
+ final Size size;
+
+ /// The name of the image acts as a tag when acquiring a reference to it.
+ ///
+ /// myTexture.name = "new_texture_name";
+ String name;
+
+ /// The texture was rotated 90 degrees when being packed into a sprite sheet.
+ ///
+ /// if (myTexture.rotated) drawRotated();
+ final bool rotated;
+
+ /// The texture was trimmed when being packed into a sprite sheet.
+ ///
+ /// bool trimmed = myTexture.trimmed
+ final bool trimmed;
+
+ /// The frame of the trimmed texture inside the image.
+ ///
+ /// Rect frame = myTexture.frame;
+ final Rect frame;
+
+ /// The offset and size of the trimmed texture inside the image.
+ ///
+ /// Position represents the offset from the logical [size], the size of the rect represents the size of the trimmed
+ /// texture.
+ ///
+ /// Rect spriteSourceSize = myTexture.spriteSourceSize;
+ final Rect spriteSourceSize;
+
+ /// The default pivot point for this texture. When creating a [Sprite] from the texture, this is the pivot point that
+ /// will be used.
+ ///
+ /// myTexture.pivot = new Point(0.5, 0.5);
+ Point pivot;
+
+ /// Creates a new texture from an [Image] object.
+ ///
+ /// var myTexture = new Texture(myImage);
+ Texture(Image image) :
+ size = new Size(image.width.toDouble(), image.height.toDouble()),
+ image = image,
+ trimmed = false,
+ rotated = false,
+ frame = new Rect.fromLTRB(0.0, 0.0, image.width.toDouble(), image.height.toDouble()),
+ spriteSourceSize = new Rect.fromLTRB(0.0, 0.0, image.width.toDouble(), image.height.toDouble()),
+ pivot = new Point(0.5, 0.5);
+
+
+ Texture._fromSpriteFrame(this.image, this.name, this.size, this.rotated, this.trimmed, this.frame,
+ this.spriteSourceSize, this.pivot) {
+ }
+
+ Texture textureFromRect(Rect rect, [String name = null]) {
+ assert(rect != null);
+ assert(!rotated);
+ Rect srcFrame = new Rect.fromLTWH(rect.left + frame.left, rect.top + frame.top, rect.size.width, rect.size.height);
+ Rect dstFrame = new Rect.fromLTWH(0.0, 0.0, rect.size.width, rect.size.height);
+ return new Texture._fromSpriteFrame(image, name, rect.size, false, false, srcFrame, dstFrame, new Point(0.5, 0.5));
+ }
+
+ void drawTexture(PaintingCanvas canvas, Point position, Paint paint) {
+
+ // Account for position
+ double x = position.x;
+ double y = position.y;
+ bool translate = (x != 0 || y != 0);
+ if (translate) {
+ canvas.translate(x, y);
+ }
+
+ // Draw the texture
+ if (rotated) {
+ // Calculate the rotated frame and spriteSourceSize
+ Size originalFrameSize = frame.size;
+ Rect rotatedFrame = frame.topLeft & new Size(originalFrameSize.height, originalFrameSize.width);
+ Point rotatedSpriteSourcePoint = new Point(
+ -spriteSourceSize.top - (spriteSourceSize.bottom - spriteSourceSize.top),
+ spriteSourceSize.left);
+ Rect rotatedSpriteSourceSize = rotatedSpriteSourcePoint & new Size(originalFrameSize.height, originalFrameSize.width);
+
+ // Draw the rotated sprite
+ canvas.rotate(-math.PI/2.0);
+ canvas.drawImageRect(image, rotatedFrame, rotatedSpriteSourceSize, paint);
+ canvas.rotate(math.PI/2.0);
+ } else {
+ // Draw the sprite
+ canvas.drawImageRect(image, frame, spriteSourceSize, paint);
+ }
+
+ // Translate back
+ if (translate) {
+ canvas.translate(-x, -y);
+ }
+ }
+}
diff --git a/packages/flutter/example/game/lib/util.dart b/packages/flutter/example/game/lib/util.dart
new file mode 100644
index 0000000..66568a5
--- /dev/null
+++ b/packages/flutter/example/game/lib/util.dart
@@ -0,0 +1,2 @@
+part of sprites;
+
diff --git a/packages/flutter/example/game/main.dart b/packages/flutter/example/game/main.dart
new file mode 100644
index 0000000..2dd71a0
--- /dev/null
+++ b/packages/flutter/example/game/main.dart
@@ -0,0 +1,67 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/mojo/asset_bundle.dart';
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/widget.dart';
+import 'package:sky/widgets/task_description.dart';
+import 'package:sky/widgets/theme.dart';
+
+import 'lib/game_demo.dart';
+import 'lib/sprites.dart';
+
+AssetBundle _initBundle() {
+ if (rootBundle != null)
+ return rootBundle;
+ return new NetworkAssetBundle(Uri.base);
+}
+
+final AssetBundle _bundle = _initBundle();
+
+ImageMap _loader;
+SpriteSheet _spriteSheet;
+GameDemoApp _app;
+
+main() async {
+ _loader = new ImageMap(_bundle);
+
+ await _loader.load([
+ 'assets/nebula.png',
+ 'assets/sprites.png',
+ 'assets/starfield.png',
+ ]);
+
+ String json = await _bundle.loadString('assets/sprites.json');
+ _spriteSheet = new SpriteSheet(_loader['assets/sprites.png'], json);
+ _app = new GameDemoApp();
+
+ runApp(_app);
+}
+
+class GameDemoApp extends App {
+
+ Widget build() {
+ // TODO(viktork): The task bar purple is the wrong purple, we may need
+ // a custom theme swatch to match the purples in the sprites.
+ ThemeData theme = new ThemeData(
+ brightness: ThemeBrightness.light,
+ primarySwatch: colors.Purple
+ );
+
+ return new Theme(
+ data: theme,
+ child: new TaskDescription(
+ label: 'Asteroids',
+ child: new SpriteWidget(
+ new GameDemoWorld(_app, _loader, _spriteSheet)
+ )
+ )
+ );
+ }
+}
+
+void resetGame() {
+ _app.scheduleBuild();
+}
diff --git a/packages/flutter/example/game/sky.yaml b/packages/flutter/example/game/sky.yaml
new file mode 100644
index 0000000..28108e3
--- /dev/null
+++ b/packages/flutter/example/game/sky.yaml
@@ -0,0 +1,5 @@
+assets:
+ - assets/nebula.png
+ - assets/sprites.json
+ - assets/sprites.png
+ - assets/starfield.png
diff --git a/packages/flutter/example/hello_world/lib/main.dart b/packages/flutter/example/hello_world/lib/main.dart
new file mode 100644
index 0000000..699c117
--- /dev/null
+++ b/packages/flutter/example/hello_world/lib/main.dart
@@ -0,0 +1,15 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/widgets/basic.dart';
+
+class HelloWorldApp extends App {
+ Widget build() {
+ return new Text('Hello, world!');
+ }
+}
+
+void main() {
+ runApp(new HelloWorldApp());
+}
diff --git a/packages/flutter/example/mine_digger/BUILD.gn b/packages/flutter/example/mine_digger/BUILD.gn
new file mode 100644
index 0000000..ec5218b
--- /dev/null
+++ b/packages/flutter/example/mine_digger/BUILD.gn
@@ -0,0 +1,13 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//sky/build/sky_app.gni")
+
+sky_app("mine_digger") {
+ main_dart = "lib/main.dart"
+
+ if (is_android) {
+ apk_name = "MineDigger"
+ }
+}
diff --git a/packages/flutter/example/mine_digger/apk/AndroidManifest.xml b/packages/flutter/example/mine_digger/apk/AndroidManifest.xml
new file mode 100644
index 0000000..dbd3bc2
--- /dev/null
+++ b/packages/flutter/example/mine_digger/apk/AndroidManifest.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2015 The Chromium Authors. All rights reserved.
+ Use of this source code is governed by a BSD-style license that can be
+ found in the LICENSE file.
+ -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="org.domokit.mine_digger">
+
+ <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />
+ <uses-permission android:name="android.permission.INTERNET"/>
+
+ <application android:name="org.domokit.sky.shell.SkyApplication" android:label="Mine Digger">
+ <activity android:name="org.domokit.sky.shell.SkyActivity"
+ android:launchMode="singleTask"
+ android:theme="@android:style/Theme.Black.NoTitleBar"
+ android:configChanges="orientation|keyboardHidden|keyboard|screenSize"
+ android:hardwareAccelerated="true">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN"/>
+ <category android:name="android.intent.category.LAUNCHER"/>
+ </intent-filter>
+ </activity>
+ </application>
+ </manifest>
diff --git a/packages/flutter/example/mine_digger/lib/main.dart b/packages/flutter/example/mine_digger/lib/main.dart
new file mode 100644
index 0000000..0db72e2
--- /dev/null
+++ b/packages/flutter/example/mine_digger/lib/main.dart
@@ -0,0 +1,376 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+import 'dart:math';
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/scaffold.dart';
+import 'package:sky/widgets/task_description.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/tool_bar.dart';
+
+// Classic minesweeper-inspired game. The mouse controls are standard except
+// for left + right combo which is not implemented. For touch, the duration of
+// the pointer determines probing versus flagging.
+//
+// There are only 3 classes to understand. Game, which is contains all the
+// logic and two UI classes: CoveredMineNode and ExposedMineNode, none of them
+// holding state.
+
+class Game {
+ static const int rows = 9;
+ static const int cols = 9;
+ static const int totalMineCount = 11;
+
+ static const int coveredCell = 0;
+ static const int explodedCell = 1;
+ static const int clearedCell = 2;
+ static const int flaggedCell = 3;
+ static const int shownCell = 4;
+
+ static final List<TextStyle> textStyles = new List<TextStyle>();
+
+ final App app;
+
+ bool alive;
+ bool hasWon;
+ int detectedCount;
+ int randomSeed;
+
+ // |cells| keeps track of the positions of the mines.
+ List<List<bool>> cells;
+ // |uiState| keeps track of the visible player progess.
+ List<List<int>> uiState;
+
+ Game(this.app) {
+ randomSeed = 22;
+ // Colors for each mine count:
+ // 0 - none, 1 - blue, 2-green, 3-red, 4-black, 5-dark red .. etc.
+ textStyles.add(
+ new TextStyle(color: const Color(0xFF555555), fontWeight: bold));
+ textStyles.add(
+ new TextStyle(color: const Color(0xFF0094FF), fontWeight: bold));
+ textStyles.add(
+ new TextStyle(color: const Color(0xFF13A023), fontWeight: bold));
+ textStyles.add(
+ new TextStyle(color: const Color(0xFFDA1414), fontWeight: bold));
+ textStyles.add(
+ new TextStyle(color: const Color(0xFF1E2347), fontWeight: bold));
+ textStyles.add(
+ new TextStyle(color: const Color(0xFF7F0037), fontWeight: bold));
+ textStyles.add(
+ new TextStyle(color: const Color(0xFFE93BE9), fontWeight: bold));
+ initialize();
+ }
+
+ void initialize() {
+ alive = true;
+ hasWon = false;
+ detectedCount = 0;
+ // Build the arrays.
+ cells = new List<List<bool>>();
+ uiState = new List<List<int>>();
+ for (int iy = 0; iy != rows; iy++) {
+ cells.add(new List<bool>());
+ uiState.add(new List<int>());
+ for (int ix = 0; ix != cols; ix++) {
+ cells[iy].add(false);
+ uiState[iy].add(coveredCell);
+ }
+ }
+ // Place the mines.
+ Random random = new Random(++randomSeed);
+ for (int mc = 0; mc != totalMineCount; mc++) {
+ int rx = random.nextInt(rows);
+ int ry = random.nextInt(cols);
+ if (cells[ry][rx]) {
+ // Mine already there. Try again.
+ --mc;
+ } else {
+ cells[ry][rx] = true;
+ }
+ }
+ }
+
+ Widget buildBoard() {
+ bool hasCoveredCell = false;
+ List<Flex> flexRows = new List<Flex>();
+ for (int iy = 0; iy != 9; iy++) {
+ List<Component> row = new List<Component>();
+ for (int ix = 0; ix != 9; ix++) {
+ int state = uiState[iy][ix];
+ int count = mineCount(ix, iy);
+
+ if (!alive) {
+ if (state != explodedCell)
+ state = cells[iy][ix] ? shownCell : state;
+ }
+
+ if (state == coveredCell) {
+ row.add(new CoveredMineNode(
+ this,
+ flagged: false,
+ posX: ix, posY: iy));
+ // Mutating |hasCoveredCell| here is hacky, but convenient, same
+ // goes for mutating |hasWon| below.
+ hasCoveredCell = true;
+ } else if (state == flaggedCell) {
+ row.add(new CoveredMineNode(
+ this,
+ flagged: true,
+ posX: ix, posY: iy));
+ } else {
+ row.add(new ExposedMineNode(
+ state: state,
+ count: count));
+ }
+ }
+ flexRows.add(
+ new Flex(
+ row,
+ direction: FlexDirection.horizontal,
+ justifyContent: FlexJustifyContent.center,
+ key: 'flex_row($iy)'
+ ));
+ }
+
+ if (!hasCoveredCell) {
+ // all cells uncovered. Are all mines flagged?
+ if ((detectedCount == totalMineCount) && alive) {
+ hasWon = true;
+ }
+ }
+
+ return new Container(
+ key: 'minefield',
+ padding: new EdgeDims.all(10.0),
+ margin: new EdgeDims.all(10.0),
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFF6B6B6B)),
+ child: new Flex(
+ flexRows,
+ direction: FlexDirection.vertical,
+ key: 'flxv'));
+ }
+
+ Widget buildToolBar() {
+ String banner = hasWon ?
+ 'Awesome!!' : alive ?
+ 'Mine Digger [$detectedCount-$totalMineCount]': 'Kaboom! [press here]';
+
+ return new ToolBar(
+ // FIXME: Strange to have the toolbar be tapable.
+ center: new Listener(
+ onPointerDown: handleBannerPointerDown,
+ child: new Text(banner, style: Theme.of(this.app).text.title)
+ )
+ );
+ }
+
+ Widget buildUI() {
+ // FIXME: We need to build the board before we build the toolbar because
+ // we compute the win state during build step.
+ Widget board = buildBoard();
+ return new TaskDescription(
+ label: 'Mine Digger',
+ child: new Scaffold(
+ toolbar: buildToolBar(),
+ body: new Container(
+ child: new Center(child: board),
+ decoration: new BoxDecoration(backgroundColor: colors.Grey[50])
+ )
+ )
+ );
+ }
+
+ void handleBannerPointerDown(sky.PointerEvent event) {
+ initialize();
+ app.scheduleBuild();
+ }
+
+ // User action. The user uncovers the cell which can cause losing the game.
+ void probe(int x, int y) {
+ if (!alive)
+ return;
+ if (uiState[y][x] == flaggedCell)
+ return;
+ // Allowed to probe.
+ if (cells[y][x]) {
+ // Probed on a mine --> dead!!
+ uiState[y][x] = explodedCell;
+ alive = false;
+ } else {
+ // No mine, uncover nearby if possible.
+ cull(x, y);
+ }
+ app.scheduleBuild();
+ }
+
+ // User action. The user is sure a mine is at this location.
+ void flag(int x, int y) {
+ if (uiState[y][x] == flaggedCell) {
+ uiState[y][x] = coveredCell;
+ --detectedCount;
+ } else {
+ uiState[y][x] = flaggedCell;
+ ++detectedCount;
+ }
+ app.scheduleBuild();
+ }
+
+ // Recursively uncovers cells whose totalMineCount is zero.
+ void cull(int x, int y) {
+ if ((x < 0) || (x > rows - 1))
+ return;
+ if ((y < 0) || (y > cols - 1))
+ return;
+
+ if (uiState[y][x] == clearedCell)
+ return;
+ uiState[y][x] = clearedCell;
+
+ if (mineCount(x, y) > 0)
+ return;
+
+ cull(x - 1, y);
+ cull(x + 1, y);
+ cull(x, y - 1);
+ cull(x, y + 1 );
+ cull(x - 1, y - 1);
+ cull(x + 1, y + 1);
+ cull(x + 1, y - 1);
+ cull(x - 1, y + 1);
+ }
+
+ int mineCount(int x, int y) {
+ int count = 0;
+ int my = cols - 1;
+ int mx = rows - 1;
+
+ count += x > 0 ? bombs(x - 1, y) : 0;
+ count += x < mx ? bombs(x + 1, y) : 0;
+ count += y > 0 ? bombs(x, y - 1) : 0;
+ count += y < my ? bombs(x, y + 1 ) : 0;
+
+ count += (x > 0) && (y > 0) ? bombs(x - 1, y - 1) : 0;
+ count += (x < mx) && (y < my) ? bombs(x + 1, y + 1) : 0;
+ count += (x < mx) && (y > 0) ? bombs(x + 1, y - 1) : 0;
+ count += (x > 0) && (y < my) ? bombs(x - 1, y + 1) : 0;
+
+ return count;
+ }
+
+ int bombs(int x, int y) {
+ return cells[y][x] ? 1 : 0;
+ }
+}
+
+Widget makeCell(Widget widget) {
+ return new Container(
+ padding: new EdgeDims.all(1.0),
+ height: 27.0, width: 27.0,
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFFC0C0C0)),
+ margin: new EdgeDims.all(2.0),
+ child: widget);
+}
+
+Widget makeInnerCell(Widget widget) {
+ return new Container(
+ padding: new EdgeDims.all(1.0),
+ margin: new EdgeDims.all(3.0),
+ height: 17.0, width: 17.0,
+ child: widget);
+}
+
+class CoveredMineNode extends Component {
+ final Game game;
+ final bool flagged;
+ final int posX;
+ final int posY;
+ Stopwatch stopwatch;
+
+ CoveredMineNode(this.game, {this.flagged, this.posX, this.posY});
+
+ void _handlePointerDown(sky.PointerEvent event) {
+ if (event.buttons == 1) {
+ game.probe(posX, posY);
+ } else if (event.buttons == 2) {
+ game.flag(posX, posY);
+ } else {
+ // Touch event.
+ stopwatch = new Stopwatch()..start();
+ }
+ }
+
+ void _handlePointerUp(sky.PointerEvent event) {
+ if (stopwatch == null)
+ return;
+ // Pointer down was a touch event.
+ if (stopwatch.elapsedMilliseconds < 250) {
+ game.probe(posX, posY);
+ } else {
+ // Long press flags.
+ game.flag(posX, posY);
+ }
+ stopwatch = null;
+ }
+
+ Widget build() {
+ Widget text = flagged ?
+ makeInnerCell(new StyledText(elements : [Game.textStyles[5], '\u2691'])) :
+ null;
+
+ Container inner = new Container(
+ margin: new EdgeDims.all(2.0),
+ height: 17.0, width: 17.0,
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFFD9D9D9)),
+ child: text);
+
+ return makeCell(new Listener(
+ child: inner,
+ onPointerDown: _handlePointerDown,
+ onPointerUp: _handlePointerUp));
+ }
+}
+
+class ExposedMineNode extends Component {
+ final int state;
+ final int count;
+
+ ExposedMineNode({this.state, this.count});
+
+ Widget build() {
+ StyledText text;
+ if (state == Game.clearedCell) {
+ // Uncovered cell with nearby mine count.
+ if (count != 0)
+ text = new StyledText(elements : [Game.textStyles[count], '$count']);
+ } else {
+ // Exploded mine or shown mine for 'game over'.
+ int color = state == Game.explodedCell ? 3 : 0;
+ text = new StyledText(elements : [Game.textStyles[color], '\u2600']);
+ }
+
+ return makeCell(makeInnerCell(text));
+ }
+}
+
+class MineDiggerApp extends App {
+ Game game;
+
+ MineDiggerApp() {
+ game = new Game(this);
+ }
+
+ Widget build() {
+ return game.buildUI();
+ }
+}
+
+void main() {
+ runApp(new MineDiggerApp());
+}
diff --git a/packages/flutter/example/raw/baseline.dart b/packages/flutter/example/raw/baseline.dart
new file mode 100644
index 0000000..4d88108
--- /dev/null
+++ b/packages/flutter/example/raw/baseline.dart
@@ -0,0 +1,65 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+void drawText(sky.Canvas canvas, String lh) {
+ sky.Paint paint = new sky.Paint();
+
+ // offset down
+ canvas.translate(0.0, 100.0);
+
+ // set up the text
+ sky.Document document = new sky.Document();
+ sky.Text arabic = document.createText("مرحبا");
+ sky.Text english = document.createText(" Hello");
+ sky.Element block = document.createElement('div');
+ block.style['display'] = 'paragraph';
+ block.style['font-family'] = 'monospace';
+ block.style['font-size'] = '50px';
+ block.style['line-height'] = lh;
+ block.style['color'] = '#0000A0';
+ block.appendChild(arabic);
+ block.appendChild(english);
+ sky.LayoutRoot layoutRoot = new sky.LayoutRoot();
+ layoutRoot.rootElement = block;
+ layoutRoot.maxWidth = sky.view.width - 20.0; // you need to set a width for this to paint
+ layoutRoot.layout();
+
+ // draw a line at the text's baseline
+ sky.Path path = new sky.Path();
+ path.moveTo(0.0, 0.0);
+ path.lineTo(block.maxContentWidth, 0.0);
+ path.moveTo(0.0, block.alphabeticBaseline);
+ path.lineTo(block.maxContentWidth, block.alphabeticBaseline);
+ path.moveTo(0.0, block.height);
+ path.lineTo(block.maxContentWidth, block.height);
+ paint.color = const sky.Color(0xFFFF9000);
+ paint.setStyle(sky.PaintingStyle.stroke);
+ paint.strokeWidth = 3.0;
+ canvas.drawPath(path, paint);
+
+ // paint the text
+ layoutRoot.paint(canvas);
+}
+
+void main() {
+ // prepare the rendering
+ sky.PictureRecorder recorder = new sky.PictureRecorder();
+ sky.Canvas canvas = new sky.Canvas(recorder, new sky.Rect.fromLTWH(0.0, 0.0, sky.view.width, sky.view.height));
+
+ // background
+ sky.Paint paint = new sky.Paint();
+ paint.color = const sky.Color(0xFFFFFFFF);
+ paint.setStyle(sky.PaintingStyle.fill);
+ canvas.drawRect(new sky.Rect.fromLTRB(0.0, 0.0, sky.view.width, sky.view.height), paint);
+
+ canvas.translate(10.0, 0.0);
+ drawText(canvas, '1.0');
+ drawText(canvas, 'lh');
+
+ // put it on the screen
+ sky.view.picture = recorder.endRecording();
+ sky.view.scheduleFrame();
+}
diff --git a/packages/flutter/example/raw/hello_world.dart b/packages/flutter/example/raw/hello_world.dart
new file mode 100644
index 0000000..b091338
--- /dev/null
+++ b/packages/flutter/example/raw/hello_world.dart
@@ -0,0 +1,46 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky';
+
+Picture draw(int a, int r, int g, int b) {
+ Size size = new Size(view.width, view.height);
+
+ PictureRecorder recorder = new PictureRecorder();
+ Canvas canvas = new Canvas(recorder, Point.origin & size);
+ double radius = size.shortestSide * 0.45;
+
+ Paint paint = new Paint()..color = new Color.fromARGB(a, r, g, b);
+ canvas.drawCircle(size.center(Point.origin), radius, paint);
+ return recorder.endRecording();
+}
+
+bool handleEvent(Event event) {
+ if (event.type == "pointerdown") {
+ view.picture = draw(255, 0, 0, 255);
+ view.scheduleFrame();
+ return true;
+ }
+
+ if (event.type == "pointerup") {
+ view.picture = draw(255, 0, 255, 0);
+ view.scheduleFrame();
+ return true;
+ }
+
+ if (event.type == "back") {
+ print("Pressed back button.");
+ return true;
+ }
+
+ return false;
+}
+
+void main() {
+ print("Hello, world");
+ view.picture = draw(255, 0, 255, 0);
+ view.scheduleFrame();
+
+ view.setEventCallback(handleEvent);
+}
diff --git a/packages/flutter/example/raw/painting.dart b/packages/flutter/example/raw/painting.dart
new file mode 100644
index 0000000..2b34532
--- /dev/null
+++ b/packages/flutter/example/raw/painting.dart
@@ -0,0 +1,93 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+import 'dart:math' as math;
+import 'dart:typed_data';
+
+void beginFrame(double timeStamp) {
+ sky.Size size = new sky.Size(sky.view.width, sky.view.height);
+ sky.PictureRecorder recorder = new sky.PictureRecorder();
+ sky.Canvas canvas = new sky.Canvas(recorder, sky.Point.origin & size);
+
+ sky.Paint paint = new sky.Paint();
+ sky.Point mid = size.center(sky.Point.origin);
+ double radius = size.shortestSide / 2.0;
+
+ canvas.drawPaint(new sky.Paint()..color = const sky.Color(0xFFFFFFFF));
+
+ canvas.save();
+
+ canvas.translate(-mid.x/2.0, sky.view.height*2.0);
+ canvas.clipRect(
+ new sky.Rect.fromLTRB(0.0, -sky.view.height, sky.view.width, radius));
+
+ canvas.translate(mid.x, mid.y);
+ paint.color = const sky.Color.fromARGB(128, 255, 0, 255);
+ canvas.rotate(math.PI/4.0);
+
+ sky.Gradient yellowBlue = new sky.Gradient.linear(
+ [new sky.Point(-radius, -radius), new sky.Point(0.0, 0.0)],
+ [const sky.Color(0xFFFFFF00), const sky.Color(0xFF0000FF)]);
+ canvas.drawRect(new sky.Rect.fromLTRB(-radius, -radius, radius, radius),
+ new sky.Paint()..setShader(yellowBlue));
+
+ // Scale x and y by 0.5.
+ var scaleMatrix = new Float32List.fromList([
+ 0.5, 0.0, 0.0, 0.0,
+ 0.0, 0.5, 0.0, 0.0,
+ 0.0, 0.0, 0.0, 0.0,
+ 0.0, 0.0, 0.0, 1.0,
+ ]);
+ canvas.concat(scaleMatrix);
+ paint.color = const sky.Color.fromARGB(128, 0, 255, 0);
+ canvas.drawCircle(sky.Point.origin, radius, paint);
+
+ canvas.restore();
+
+ canvas.translate(0.0, 50.0);
+ var builder = new sky.LayerDrawLooperBuilder()
+ ..addLayerOnTop(
+ new sky.DrawLooperLayerInfo()
+ ..setOffset(const sky.Offset(150.0, 0.0))
+ ..setColorMode(sky.TransferMode.src)
+ ..setPaintBits(sky.PaintBits.all),
+ (sky.Paint layerPaint) {
+ layerPaint.color = const sky.Color.fromARGB(128, 255, 255, 0);
+ layerPaint.setColorFilter(new sky.ColorFilter.mode(
+ const sky.Color.fromARGB(128, 0, 0, 255), sky.TransferMode.srcIn));
+ layerPaint.setMaskFilter(new sky.MaskFilter.blur(
+ sky.BlurStyle.normal, 3.0, highQuality: true));
+ })
+ ..addLayerOnTop(
+ new sky.DrawLooperLayerInfo()
+ ..setOffset(const sky.Offset(75.0, 75.0))
+ ..setColorMode(sky.TransferMode.src)
+ ..setPaintBits(sky.PaintBits.shader),
+ (sky.Paint layerPaint) {
+ sky.Gradient redYellow = new sky.Gradient.radial(
+ new sky.Point(0.0, 0.0), radius/3.0,
+ [const sky.Color(0xFFFFFF00), const sky.Color(0xFFFF0000)],
+ null, sky.TileMode.mirror);
+ layerPaint.setShader(redYellow);
+ // Since we're don't set sky.PaintBits.maskFilter, this has no effect.
+ layerPaint.setMaskFilter(new sky.MaskFilter.blur(
+ sky.BlurStyle.normal, 50.0, highQuality: true));
+ })
+ ..addLayerOnTop(
+ new sky.DrawLooperLayerInfo()..setOffset(const sky.Offset(225.0, 75.0)),
+ (sky.Paint layerPaint) {
+ // Since this layer uses a DST color mode, this has no effect.
+ layerPaint.color = const sky.Color.fromARGB(128, 255, 0, 0);
+ });
+ paint.setDrawLooper(builder.build());
+ canvas.drawCircle(sky.Point.origin, radius, paint);
+
+ sky.view.picture = recorder.endRecording();
+}
+
+void main() {
+ sky.view.setFrameCallback(beginFrame);
+ sky.view.scheduleFrame();
+}
diff --git a/packages/flutter/example/raw/painting_node.dart b/packages/flutter/example/raw/painting_node.dart
new file mode 100644
index 0000000..a550812
--- /dev/null
+++ b/packages/flutter/example/raw/painting_node.dart
@@ -0,0 +1,54 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky';
+
+PaintingNode paintingNode = null;
+Picture draw(int a, int r, int g, int b) {
+ Rect bounds = new Rect.fromLTRB(0.0, 0.0, view.width, view.height);
+ Size size = new Size(view.width, view.height);
+
+ PictureRecorder recorder = new PictureRecorder();
+ Canvas canvas = new Canvas(recorder, bounds);
+ double radius = size.shortestSide * 0.45;
+
+ Paint paint = new Paint()..color = new Color.fromARGB(a, r, g, b);
+ canvas.drawCircle(size.center(Point.origin), radius, paint);
+
+ if (paintingNode == null) {
+ paintingNode = new PaintingNode();
+ Paint innerPaint = new Paint()..color = new Color.fromARGB(a, 255 - r, 255 - g, 255 - b);
+ PictureRecorder innerRecorder = new PictureRecorder();
+ Canvas innerCanvas = new Canvas(innerRecorder, bounds);
+ innerCanvas.drawCircle(size.center(Point.origin), radius * 0.5, innerPaint);
+
+ paintingNode.setBackingDrawable(innerRecorder.endRecordingAsDrawable());
+ }
+ canvas.drawPaintingNode(paintingNode, Point.origin);
+
+ return recorder.endRecording();
+}
+
+bool handleEvent(Event event) {
+ if (event.type == "pointerdown") {
+ view.picture = draw(255, 0, 0, 255);
+ view.scheduleFrame();
+ return true;
+ }
+
+ if (event.type == "pointerup") {
+ view.picture = draw(255, 0, 255, 0);
+ view.scheduleFrame();
+ return true;
+ }
+
+ return false;
+}
+
+void main() {
+ view.picture = draw(255, 0, 255, 0);
+ view.scheduleFrame();
+
+ view.setEventCallback(handleEvent);
+}
diff --git a/packages/flutter/example/raw/shadow.dart b/packages/flutter/example/raw/shadow.dart
new file mode 100644
index 0000000..5f44336
--- /dev/null
+++ b/packages/flutter/example/raw/shadow.dart
@@ -0,0 +1,40 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky';
+
+void beginFrame(double timeStamp) {
+ double size = 100.0;
+ PictureRecorder recorder = new PictureRecorder();
+ Canvas canvas = new Canvas(recorder, new Rect.fromLTWH(0.0, 0.0, view.width, view.height));
+ canvas.translate(size + 10.0, size + 10.0);
+
+ Paint paint = new Paint();
+ paint.color = const Color.fromARGB(255, 0, 255, 0);
+ var builder = new LayerDrawLooperBuilder()
+ // Shadow layer.
+ ..addLayerOnTop(
+ new DrawLooperLayerInfo()
+ ..setPaintBits(PaintBits.all)
+ ..setOffset(const Offset(5.0, 5.0))
+ ..setColorMode(TransferMode.src),
+ (Paint layerPaint) {
+ layerPaint.color = const Color.fromARGB(128, 55, 55, 55);
+ layerPaint.setMaskFilter(
+ new MaskFilter.blur(BlurStyle.normal, 5.0, highQuality: true));
+ })
+ // Main layer.
+ ..addLayerOnTop(new DrawLooperLayerInfo(), (Paint) {});
+ paint.setDrawLooper(builder.build());
+
+ canvas.drawPaint(
+ new Paint()..color = const Color.fromARGB(255, 255, 255, 255));
+ canvas.drawRect(new Rect.fromLTRB(-size, -size, size, size), paint);
+ view.picture = recorder.endRecording();
+}
+
+void main() {
+ view.setFrameCallback(beginFrame);
+ view.scheduleFrame();
+}
diff --git a/packages/flutter/example/raw/spinning_arabic.dart b/packages/flutter/example/raw/spinning_arabic.dart
new file mode 100644
index 0000000..45ceeef
--- /dev/null
+++ b/packages/flutter/example/raw/spinning_arabic.dart
@@ -0,0 +1,48 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import "dart:math" as math;
+import 'dart:sky';
+
+double timeBase = null;
+LayoutRoot layoutRoot = new LayoutRoot();
+
+void beginFrame(double timeStamp) {
+ if (timeBase == null)
+ timeBase = timeStamp;
+ double delta = timeStamp - timeBase;
+ PictureRecorder recorder = new PictureRecorder();
+ Canvas canvas = new Canvas(recorder, new Rect.fromLTWH(0.0, 0.0, view.width, view.height));
+ canvas.translate(view.width / 2.0, view.height / 2.0);
+ canvas.rotate(math.PI * delta / 1800);
+ canvas.drawRect(new Rect.fromLTRB(-100.0, -100.0, 100.0, 100.0),
+ new Paint()..color = const Color.fromARGB(255, 0, 255, 0));
+
+ double sin = math.sin(delta / 200);
+ layoutRoot.maxWidth = 150.0 + (50 * sin);
+ layoutRoot.layout();
+
+ canvas.translate(layoutRoot.maxWidth / -2.0, (layoutRoot.maxWidth / 2.0) - 125);
+ layoutRoot.paint(canvas);
+
+ view.picture = recorder.endRecording();
+ view.scheduleFrame();
+}
+
+void main() {
+ var document = new Document();
+ var arabic = document.createText("هذا هو قليلا طويلة من النص الذي يجب التفاف .");
+ var more = document.createText(" و أكثر قليلا لجعله أطول. ");
+ var block = document.createElement('p');
+ block.style['display'] = 'paragraph';
+ block.style['direction'] = 'rtl';
+ block.style['unicode-bidi'] = 'plaintext';
+ block.appendChild(arabic);
+ block.appendChild(more);
+
+ layoutRoot.rootElement = block;
+
+ view.setFrameCallback(beginFrame);
+ view.scheduleFrame();
+}
diff --git a/packages/flutter/example/raw/spinning_image.dart b/packages/flutter/example/raw/spinning_image.dart
new file mode 100644
index 0000000..743f1a9
--- /dev/null
+++ b/packages/flutter/example/raw/spinning_image.dart
@@ -0,0 +1,73 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+import 'dart:sky';
+
+import 'package:sky/mojo/net/image_cache.dart' as image_cache;
+
+double timeBase = null;
+
+Image image = null;
+String url1 = "https://www.dartlang.org/logos/dart-logo.png";
+String url2 = "http://i2.kym-cdn.com/photos/images/facebook/000/581/296/c09.jpg";
+
+void beginFrame(double timeStamp) {
+ if (timeBase == null)
+ timeBase = timeStamp;
+ double delta = timeStamp - timeBase;
+ PictureRecorder recorder = new PictureRecorder();
+ Canvas canvas = new Canvas(recorder, Point.origin & new Size(view.width, view.height));
+ canvas.translate(view.width / 2.0, view.height / 2.0);
+ canvas.rotate(math.PI * delta / 1800);
+ canvas.scale(0.2, 0.2);
+ Paint paint = new Paint()..color = const Color.fromARGB(255, 0, 255, 0);
+
+ // Draw image
+ if (image != null)
+ canvas.drawImage(image, new Point(-image.width / 2.0, -image.height / 2.0), paint);
+
+ // Draw cut out of image
+ canvas.rotate(math.PI * delta / 1800);
+ if (image != null) {
+ var w = image.width.toDouble();
+ var h = image.width.toDouble();
+ canvas.drawImageRect(image,
+ new Rect.fromLTRB(w * 0.25, h * 0.25, w * 0.75, h * 0.75),
+ new Rect.fromLTRB(-w / 4.0, -h / 4.0, w / 4.0, h / 4.0),
+ paint);
+ }
+
+ view.picture = recorder.endRecording();
+ view.scheduleFrame();
+}
+
+void handleImageLoad(result) {
+ if (result != image) {
+ print("${result.width}x${result.width} image loaded!");
+ image = result;
+ view.scheduleFrame();
+ } else {
+ print("Existing image was loaded again");
+ }
+}
+
+bool handleEvent(Event event) {
+ if (event.type == "pointerdown") {
+ return true;
+ }
+
+ if (event.type == "pointerup") {
+ image_cache.load(url2).then(handleImageLoad);
+ return true;
+ }
+
+ return false;
+}
+
+void main() {
+ image_cache.load(url1).then(handleImageLoad);
+ view.setEventCallback(handleEvent);
+ view.setFrameCallback(beginFrame);
+}
diff --git a/packages/flutter/example/raw/spinning_square.dart b/packages/flutter/example/raw/spinning_square.dart
new file mode 100644
index 0000000..bb46174
--- /dev/null
+++ b/packages/flutter/example/raw/spinning_square.dart
@@ -0,0 +1,29 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky';
+import 'dart:math' as math;
+
+double timeBase = null;
+
+void beginFrame(double timeStamp) {
+ tracing.begin('beginFrame');
+ if (timeBase == null)
+ timeBase = timeStamp;
+ double delta = timeStamp - timeBase;
+ PictureRecorder recorder = new PictureRecorder();
+ Canvas canvas = new Canvas(recorder, new Rect.fromLTWH(0.0, 0.0, view.width, view.height));
+ canvas.translate(view.width / 2.0, view.height / 2.0);
+ canvas.rotate(math.PI * delta / 1800);
+ canvas.drawRect(new Rect.fromLTRB(-100.0, -100.0, 100.0, 100.0),
+ new Paint()..color = const Color.fromARGB(255, 0, 255, 0));
+ view.picture = recorder.endRecording();
+ view.scheduleFrame();
+ tracing.end('beginFrame');
+}
+
+void main() {
+ view.setFrameCallback(beginFrame);
+ view.scheduleFrame();
+}
diff --git a/packages/flutter/example/rendering/BUILD.gn b/packages/flutter/example/rendering/BUILD.gn
new file mode 100644
index 0000000..3cadbad
--- /dev/null
+++ b/packages/flutter/example/rendering/BUILD.gn
@@ -0,0 +1,17 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//sky/build/skyx.gni")
+
+skyx("interactive_flex") {
+ main_dart = "interactive_flex.dart"
+}
+
+group("rendering") {
+ testonly = true
+
+ deps = [
+ ":interactive_flex",
+ ]
+}
diff --git a/packages/flutter/example/rendering/baseline.dart b/packages/flutter/example/rendering/baseline.dart
new file mode 100644
index 0000000..daf1e83
--- /dev/null
+++ b/packages/flutter/example/rendering/baseline.dart
@@ -0,0 +1,81 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/rendering/paragraph.dart';
+import 'package:sky/rendering/sky_binding.dart';
+
+RenderBox getBox(double lh) {
+ RenderParagraph paragraph = new RenderParagraph(
+ new InlineStyle(
+ new TextStyle(
+ color: const Color(0xFF0000A0)
+ ),
+ [
+ new InlineText('test'),
+ new InlineStyle(
+ new TextStyle(
+ fontFamily: 'serif',
+ fontSize: 50.0,
+ height: lh
+ ),
+ [new InlineText('مرحبا Hello')]
+ )
+ ]
+ )
+ );
+ return new RenderPadding(
+ padding: new EdgeDims.all(10.0),
+ child: new RenderConstrainedBox(
+ additionalConstraints: new BoxConstraints.tightFor(height: 200.0),
+ child: new RenderDecoratedBox(
+ decoration: new BoxDecoration(
+ backgroundColor: const Color(0xFFFFFFFF)
+ ),
+ child: new RenderPadding(
+ padding: new EdgeDims.all(10.0),
+ child: new RenderCustomPaint(
+ child: paragraph,
+ callback: (canvas, size) {
+ double baseline = paragraph.getDistanceToBaseline(TextBaseline.alphabetic);
+ double w = paragraph.getMaxIntrinsicWidth(new BoxConstraints.loose(size));
+ double h = paragraph.getMaxIntrinsicHeight(new BoxConstraints.loose(size));
+ Path path = new Path();
+ path.moveTo(0.0, 0.0);
+ path.lineTo(w, 0.0);
+ path.moveTo(0.0, baseline);
+ path.lineTo(w, baseline);
+ path.moveTo(0.0, h);
+ path.lineTo(w, h);
+ Paint paint = new Paint();
+ paint.color = const Color(0xFFFF9000);
+ paint.setStyle(sky.PaintingStyle.stroke);
+ paint.strokeWidth = 3.0;
+ canvas.drawPath(path, paint);
+ }
+ )
+ )
+ )
+ )
+ );
+}
+
+void main() {
+ RenderBox root = new RenderFlex(children: [
+ new RenderConstrainedBox(
+ additionalConstraints: new BoxConstraints.tightFor(height: 50.0)
+ ),
+ getBox(1.0),
+ getBox(null),
+ ],
+ direction: FlexDirection.vertical,
+ alignItems: FlexAlignItems.stretch
+ );
+ new SkyBinding(root: root);
+}
diff --git a/packages/flutter/example/rendering/borders.dart b/packages/flutter/example/rendering/borders.dart
new file mode 100644
index 0000000..c8f92cf
--- /dev/null
+++ b/packages/flutter/example/rendering/borders.dart
@@ -0,0 +1,76 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/rendering/block.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/sky_binding.dart';
+
+void main() {
+ var root = new RenderBlock(children: [
+ new RenderPadding(
+ padding: new EdgeDims.all(10.0),
+ child: new RenderConstrainedBox(
+ additionalConstraints: new BoxConstraints.tightFor(height: 100.0),
+ child: new RenderDecoratedBox(
+ decoration: new BoxDecoration(
+ backgroundColor: new sky.Color(0xFFFFFF00)
+ )
+ )
+ )
+ ),
+ new RenderPadding(
+ padding: new EdgeDims.all(10.0),
+ child: new RenderConstrainedBox(
+ additionalConstraints: new BoxConstraints.tightFor(height: 100.0),
+ child: new RenderDecoratedBox(
+ decoration: new BoxDecoration(
+ border: new Border(
+ top: new BorderSide(color: new sky.Color(0xFFF00000), width: 5.0),
+ right: new BorderSide(color: new sky.Color(0xFFFF9000), width: 10.0),
+ bottom: new BorderSide(color: new sky.Color(0xFFFFF000), width: 15.0),
+ left: new BorderSide(color: new sky.Color(0xFF00FF00), width: 20.0)
+ ),
+ backgroundColor: new sky.Color(0xFFDDDDDD)
+ )
+ )
+ )
+ ),
+ new RenderPadding(
+ padding: new EdgeDims.all(10.0),
+ child: new RenderConstrainedBox(
+ additionalConstraints: new BoxConstraints.tightFor(height: 100.0),
+ child: new RenderDecoratedBox(
+ decoration: new BoxDecoration(
+ backgroundColor: new sky.Color(0xFFFFFF00)
+ )
+ )
+ )
+ ),
+ new RenderPadding(
+ padding: new EdgeDims.all(10.0),
+ child: new RenderConstrainedBox(
+ additionalConstraints: new BoxConstraints.tightFor(height: 100.0),
+ child: new RenderDecoratedBox(
+ decoration: new BoxDecoration(
+ backgroundColor: new sky.Color(0xFFFFFF00)
+ )
+ )
+ )
+ ),
+ new RenderPadding(
+ padding: new EdgeDims.all(10.0),
+ child: new RenderConstrainedBox(
+ additionalConstraints: new BoxConstraints.tightFor(height: 100.0),
+ child: new RenderDecoratedBox(
+ decoration: new BoxDecoration(
+ backgroundColor: new sky.Color(0xFFFFFF00)
+ )
+ )
+ )
+ ),
+ ]);
+ new SkyBinding(root: root);
+}
diff --git a/packages/flutter/example/rendering/flex.dart b/packages/flutter/example/rendering/flex.dart
new file mode 100644
index 0000000..702dbc7
--- /dev/null
+++ b/packages/flutter/example/rendering/flex.dart
@@ -0,0 +1,93 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/rendering/sky_binding.dart';
+
+class RenderSolidColor extends RenderDecoratedBox {
+ final sky.Size desiredSize;
+ final sky.Color backgroundColor;
+
+ RenderSolidColor(sky.Color backgroundColor, { this.desiredSize: sky.Size.infinite })
+ : backgroundColor = backgroundColor,
+ super(decoration: new BoxDecoration(backgroundColor: backgroundColor)) {
+ }
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ return constraints.constrainWidth(desiredSize.width);
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ return constraints.constrainWidth(desiredSize.width);
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ return constraints.constrainHeight(desiredSize.height);
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ return constraints.constrainHeight(desiredSize.height);
+ }
+
+ void performLayout() {
+ size = constraints.constrain(desiredSize);
+ }
+
+ void handleEvent(sky.Event event, BoxHitTestEntry entry) {
+ if (event.type == 'pointerdown')
+ decoration = new BoxDecoration(backgroundColor: const sky.Color(0xFFFF0000));
+ else if (event.type == 'pointerup')
+ decoration = new BoxDecoration(backgroundColor: backgroundColor);
+ }
+}
+
+RenderBox buildFlexExample() {
+ RenderFlex flexRoot = new RenderFlex(direction: FlexDirection.vertical);
+
+ RenderDecoratedBox root = new RenderDecoratedBox(
+ decoration: new BoxDecoration(backgroundColor: const sky.Color(0xFF000000)),
+ child: flexRoot
+ );
+
+ void addFlexChildSolidColor(RenderFlex parent, sky.Color backgroundColor, { int flex: 0 }) {
+ RenderSolidColor child = new RenderSolidColor(backgroundColor);
+ parent.add(child);
+ child.parentData.flex = flex;
+ }
+
+ // Yellow bar at top
+ addFlexChildSolidColor(flexRoot, const sky.Color(0xFFFFFF00), flex: 1);
+
+ // Turquoise box
+ flexRoot.add(new RenderSolidColor(const sky.Color(0x7700FFFF), desiredSize: new sky.Size(100.0, 100.0)));
+
+ var renderDecoratedBlock = new RenderDecoratedBox(
+ decoration: new BoxDecoration(backgroundColor: const sky.Color(0xFFFFFFFF))
+ );
+
+ flexRoot.add(new RenderPadding(padding: const EdgeDims.all(10.0), child: renderDecoratedBlock));
+
+ var row = new RenderFlex(direction: FlexDirection.horizontal);
+
+ // Purple and blue cells
+ addFlexChildSolidColor(row, const sky.Color(0x77FF00FF), flex: 1);
+ addFlexChildSolidColor(row, const sky.Color(0xFF0000FF), flex: 2);
+
+ var decoratedRow = new RenderDecoratedBox(
+ decoration: new BoxDecoration(backgroundColor: const sky.Color(0xFF333333)),
+ child: row
+ );
+
+ flexRoot.add(decoratedRow);
+ decoratedRow.parentData.flex = 3;
+
+ return root;
+}
+
+void main() {
+ new SkyBinding(root: buildFlexExample());
+}
diff --git a/packages/flutter/example/rendering/interactive_flex.dart b/packages/flutter/example/rendering/interactive_flex.dart
new file mode 100644
index 0000000..24f6f60
--- /dev/null
+++ b/packages/flutter/example/rendering/interactive_flex.dart
@@ -0,0 +1,109 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky';
+import 'dart:math' as math;
+
+import 'package:sky/mojo/activity.dart' as activity;
+import 'package:sky/mojo/net/image_cache.dart' as image_cache;
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/rendering/paragraph.dart';
+import 'package:sky/rendering/sky_binding.dart';
+
+import 'solid_color_box.dart';
+
+class Touch {
+ final double x;
+ final double y;
+ const Touch(this.x, this.y);
+}
+
+class RenderImageGrow extends RenderImage {
+ final Size _startingSize;
+
+ RenderImageGrow(Image image, Size size) : _startingSize = size, super(image, size);
+
+ double _growth = 0.0;
+ double get growth => _growth;
+ void set growth(double value) {
+ _growth = value;
+ double newWidth = _startingSize.width == null ? null : _startingSize.width + growth;
+ double newHeight = _startingSize.height == null ? null : _startingSize.height + growth;
+ requestedSize = new Size(newWidth, newHeight);
+ }
+}
+
+RenderImageGrow image;
+
+Map<int, Touch> touches = new Map();
+void handleEvent(event) {
+ if (event is PointerEvent) {
+ if (event.type == 'pointermove')
+ image.growth = math.max(0.0, image.growth + event.x - touches[event.pointer].x);
+ touches[event.pointer] = new Touch(event.x, event.y);
+ }
+ if (event.type == "back") {
+ activity.finishCurrentActivity();
+ }
+}
+
+void main() {
+ void addFlexChildSolidColor(RenderFlex parent, Color backgroundColor, { int flex: 0 }) {
+ RenderSolidColorBox child = new RenderSolidColorBox(backgroundColor);
+ parent.add(child);
+ child.parentData.flex = flex;
+ }
+
+ var row = new RenderFlex(direction: FlexDirection.horizontal);
+
+ // Left cell
+ addFlexChildSolidColor(row, const Color(0xFF00D2B8), flex: 1);
+
+ // Resizeable image
+ image = new RenderImageGrow(null, new Size(100.0, null));
+ image_cache.load("https://www.dartlang.org/logos/dart-logo.png").then((Image dartLogo) {
+ image.image = dartLogo;
+ });
+
+ var padding = new RenderPadding(padding: const EdgeDims.all(10.0), child: image);
+ row.add(padding);
+
+ RenderFlex column = new RenderFlex(direction: FlexDirection.vertical);
+
+ // Top cell
+ final Color topColor = const Color(0xFF55DDCA);
+ addFlexChildSolidColor(column, topColor, flex: 1);
+
+ // The internet is a beautiful place. https://baconipsum.com/
+ String meatyString = """Bacon ipsum dolor amet ham fatback tri-tip, prosciutto
+porchetta bacon kevin meatball meatloaf pig beef ribs chicken. Brisket ribeye
+andouille leberkas capicola meatloaf. Chicken pig ball tip pork picanha bresaola
+alcatra. Pork pork belly alcatra, flank chuck drumstick biltong doner jowl.
+Pancetta meatball tongue tenderloin rump tail jowl boudin.""";
+ var text = new InlineStyle(
+ new TextStyle(color: const Color(0xFF009900)),
+ [new InlineText(meatyString)]);
+ padding = new RenderPadding(
+ padding: const EdgeDims.all(10.0),
+ child: new RenderParagraph(text));
+ column.add(padding);
+
+ // Bottom cell
+ addFlexChildSolidColor(column, const Color(0xFF0081C6), flex: 2);
+
+ row.add(column);
+ column.parentData.flex = 8;
+
+ RenderDecoratedBox root = new RenderDecoratedBox(
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFFFFFFFF)),
+ child: row
+ );
+
+ activity.updateTaskDescription('Interactive Flex', topColor);
+ new SkyBinding(root: root);
+ view.setEventCallback(handleEvent);
+}
diff --git a/packages/flutter/example/rendering/justify_content.dart b/packages/flutter/example/rendering/justify_content.dart
new file mode 100644
index 0000000..2f06968
--- /dev/null
+++ b/packages/flutter/example/rendering/justify_content.dart
@@ -0,0 +1,47 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky';
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/rendering/paragraph.dart';
+import 'package:sky/rendering/sky_binding.dart';
+
+import 'solid_color_box.dart';
+
+const TextStyle style = const TextStyle(color: const Color(0xFF000000));
+
+// Attempts to draw
+// http://www.w3.org/TR/2015/WD-css-flexbox-1-20150514/images/flex-pack.svg
+void main() {
+ var table = new RenderFlex(direction: FlexDirection.vertical);
+
+ void addRow(FlexJustifyContent justify) {
+ RenderParagraph paragraph = new RenderParagraph(new InlineStyle(style, [new InlineText("${justify}")]));
+ table.add(new RenderPadding(child: paragraph, padding: new EdgeDims.only(top: 20.0)));
+ var row = new RenderFlex(direction: FlexDirection.horizontal);
+ row.add(new RenderSolidColorBox(const Color(0xFFFFCCCC), desiredSize: new Size(80.0, 60.0)));
+ row.add(new RenderSolidColorBox(const Color(0xFFCCFFCC), desiredSize: new Size(64.0, 60.0)));
+ row.add(new RenderSolidColorBox(const Color(0xFFCCCCFF), desiredSize: new Size(160.0, 60.0)));
+ row.justifyContent = justify;
+ table.add(row);
+ row.parentData.flex = 1;
+ }
+
+ addRow(FlexJustifyContent.start);
+ addRow(FlexJustifyContent.end);
+ addRow(FlexJustifyContent.center);
+ addRow(FlexJustifyContent.spaceBetween);
+ addRow(FlexJustifyContent.spaceAround);
+
+ RenderDecoratedBox root = new RenderDecoratedBox(
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFFFFFFFF)),
+ child: new RenderPadding(child: table, padding: new EdgeDims.symmetric(vertical: 50.0))
+ );
+
+ new SkyBinding(root: root);
+}
diff --git a/packages/flutter/example/rendering/render_paragraph.dart b/packages/flutter/example/rendering/render_paragraph.dart
new file mode 100644
index 0000000..4d96887
--- /dev/null
+++ b/packages/flutter/example/rendering/render_paragraph.dart
@@ -0,0 +1,46 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky';
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/rendering/paragraph.dart';
+import 'package:sky/rendering/sky_binding.dart';
+
+import 'solid_color_box.dart';
+
+void main() {
+ RenderFlex flexRoot = new RenderFlex(direction: FlexDirection.vertical);
+
+ RenderObject root = new RenderDecoratedBox(
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFF606060)),
+ child: flexRoot
+ );
+
+ RenderObject child = new RenderSolidColorBox(const Color(0xFFFFFF00));
+ flexRoot.add(child);
+ child.parentData.flex = 2;
+
+ // The internet is a beautiful place. https://baconipsum.com/
+ String meatyString = """Bacon ipsum dolor amet ham fatback tri-tip, prosciutto
+porchetta bacon kevin meatball meatloaf pig beef ribs chicken. Brisket ribeye
+andouille leberkas capicola meatloaf. Chicken pig ball tip pork picanha bresaola
+alcatra. Pork pork belly alcatra, flank chuck drumstick biltong doner jowl.
+Pancetta meatball tongue tenderloin rump tail jowl boudin.""";
+
+ var text = new InlineStyle(
+ new TextStyle(color: const Color(0xFF009900)),
+ [new InlineText(meatyString)]);
+ child = new RenderDecoratedBox(
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFFFFFFFF)),
+ child: new RenderParagraph(text)
+ );
+ flexRoot.add(child);
+ child.parentData.flex = 1;
+
+ new SkyBinding(root: root);
+}
diff --git a/packages/flutter/example/rendering/sector_layout.dart b/packages/flutter/example/rendering/sector_layout.dart
new file mode 100644
index 0000000..52dd265
--- /dev/null
+++ b/packages/flutter/example/rendering/sector_layout.dart
@@ -0,0 +1,542 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+import 'dart:sky' as sky;
+
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/rendering/sky_binding.dart';
+
+const double kTwoPi = 2 * math.PI;
+
+class SectorConstraints extends Constraints {
+ const SectorConstraints({
+ this.minDeltaRadius: 0.0,
+ this.maxDeltaRadius: double.INFINITY,
+ this.minDeltaTheta: 0.0,
+ this.maxDeltaTheta: kTwoPi
+ });
+
+ const SectorConstraints.tight({ double deltaRadius: 0.0, double deltaTheta: 0.0 })
+ : minDeltaRadius = deltaRadius,
+ maxDeltaRadius = deltaRadius,
+ minDeltaTheta = deltaTheta,
+ maxDeltaTheta = deltaTheta;
+
+ final double minDeltaRadius;
+ final double maxDeltaRadius;
+ final double minDeltaTheta;
+ final double maxDeltaTheta;
+
+ double constrainDeltaRadius(double deltaRadius) {
+ return clamp(min: minDeltaRadius, max: maxDeltaRadius, value: deltaRadius);
+ }
+
+ double constrainDeltaTheta(double deltaTheta) {
+ return clamp(min: minDeltaTheta, max: maxDeltaTheta, value: deltaTheta);
+ }
+
+ bool get isTight => minDeltaTheta >= maxDeltaTheta && minDeltaTheta >= maxDeltaTheta;
+}
+
+class SectorDimensions {
+ const SectorDimensions({ this.deltaRadius: 0.0, this.deltaTheta: 0.0 });
+
+ factory SectorDimensions.withConstraints(
+ SectorConstraints constraints,
+ { double deltaRadius: 0.0, double deltaTheta: 0.0 }
+ ) {
+ return new SectorDimensions(
+ deltaRadius: constraints.constrainDeltaRadius(deltaRadius),
+ deltaTheta: constraints.constrainDeltaTheta(deltaTheta)
+ );
+ }
+
+ final double deltaRadius;
+ final double deltaTheta;
+}
+
+class SectorParentData extends ParentData {
+ double radius = 0.0;
+ double theta = 0.0;
+}
+
+abstract class RenderSector extends RenderObject {
+
+ void setupParentData(RenderObject child) {
+ if (child.parentData is! SectorParentData)
+ child.parentData = new SectorParentData();
+ }
+
+ SectorDimensions getIntrinsicDimensions(SectorConstraints constraints, double radius) {
+ return new SectorDimensions.withConstraints(constraints);
+ }
+
+ SectorConstraints get constraints => super.constraints;
+ bool debugDoesMeetConstraints() {
+ assert(constraints != null);
+ assert(deltaRadius != null);
+ assert(deltaRadius < double.INFINITY);
+ assert(deltaTheta != null);
+ assert(deltaTheta < double.INFINITY);
+ return constraints.minDeltaRadius <= deltaRadius &&
+ deltaRadius <= math.max(constraints.minDeltaRadius, constraints.maxDeltaRadius) &&
+ constraints.minDeltaTheta <= deltaTheta &&
+ deltaTheta <= math.max(constraints.minDeltaTheta, constraints.maxDeltaTheta);
+ }
+ void performResize() {
+ // default behaviour for subclasses that have sizedByParent = true
+ deltaRadius = constraints.constrainDeltaRadius(0.0);
+ deltaTheta = constraints.constrainDeltaTheta(0.0);
+ }
+ void performLayout() {
+ // descendants have to either override performLayout() to set both
+ // the dimensions and lay out children, or, set sizedByParent to
+ // true so that performResize()'s logic above does its thing.
+ assert(sizedByParent);
+ }
+
+ Rect get paintBounds => new Rect.fromLTWH(0.0, 0.0, 2.0 * deltaRadius, 2.0 * deltaRadius);
+
+ bool hitTest(HitTestResult result, { double radius, double theta }) {
+ assert(parentData is SectorParentData);
+ if (radius < parentData.radius || radius >= parentData.radius + deltaRadius ||
+ theta < parentData.theta || theta >= parentData.theta + deltaTheta)
+ return false;
+ hitTestChildren(result, radius: radius, theta: theta);
+ result.add(new HitTestEntry(this));
+ return true;
+ }
+ void hitTestChildren(HitTestResult result, { double radius, double theta }) { }
+
+ double deltaRadius;
+ double deltaTheta;
+}
+
+abstract class RenderDecoratedSector extends RenderSector {
+
+ RenderDecoratedSector(BoxDecoration decoration) : _decoration = decoration;
+
+ BoxDecoration _decoration;
+ BoxDecoration get decoration => _decoration;
+ void set decoration (BoxDecoration value) {
+ if (value == _decoration)
+ return;
+ _decoration = value;
+ markNeedsPaint();
+ }
+
+ // offset must point to the center of the circle
+ void paint(PaintingCanvas canvas, Offset offset) {
+ assert(deltaRadius != null);
+ assert(deltaTheta != null);
+ assert(parentData is SectorParentData);
+
+ if (_decoration == null)
+ return;
+
+ if (_decoration.backgroundColor != null) {
+ Paint paint = new Paint()..color = _decoration.backgroundColor;
+ Path path = new Path();
+ double outerRadius = (parentData.radius + deltaRadius);
+ Rect outerBounds = new Rect.fromLTRB(offset.dx-outerRadius, offset.dy-outerRadius, offset.dx+outerRadius, offset.dy+outerRadius);
+ path.arcTo(outerBounds, parentData.theta, deltaTheta, true);
+ double innerRadius = parentData.radius;
+ Rect innerBounds = new Rect.fromLTRB(offset.dx-innerRadius, offset.dy-innerRadius, offset.dx+innerRadius, offset.dy+innerRadius);
+ path.arcTo(innerBounds, parentData.theta + deltaTheta, -deltaTheta, false);
+ path.close();
+ canvas.drawPath(path, paint);
+ }
+ }
+
+}
+
+class SectorChildListParentData extends SectorParentData with ContainerParentDataMixin<RenderSector> { }
+
+class RenderSectorWithChildren extends RenderDecoratedSector with ContainerRenderObjectMixin<RenderSector, SectorChildListParentData> {
+ RenderSectorWithChildren(BoxDecoration decoration) : super(decoration);
+
+ void hitTestChildren(HitTestResult result, { double radius, double theta }) {
+ RenderSector child = lastChild;
+ while (child != null) {
+ assert(child.parentData is SectorChildListParentData);
+ if (child.hitTest(result, radius: radius, theta: theta))
+ return;
+ child = child.parentData.previousSibling;
+ }
+ }
+}
+
+class RenderSectorRing extends RenderSectorWithChildren {
+ // lays out RenderSector children in a ring
+
+ RenderSectorRing({
+ BoxDecoration decoration,
+ double deltaRadius: double.INFINITY,
+ double padding: 0.0
+ }) : super(decoration), _padding = padding, _desiredDeltaRadius = deltaRadius;
+
+ double _desiredDeltaRadius;
+ double get desiredDeltaRadius => _desiredDeltaRadius;
+ void set desiredDeltaRadius(double value) {
+ assert(value != null);
+ if (_desiredDeltaRadius != value) {
+ _desiredDeltaRadius = value;
+ markNeedsLayout();
+ }
+ }
+
+ double _padding;
+ double get padding => _padding;
+ void set padding(double value) {
+ // TODO(ianh): avoid code duplication
+ assert(value != null);
+ if (_padding != value) {
+ _padding = value;
+ markNeedsLayout();
+ }
+ }
+
+ void setupParentData(RenderObject child) {
+ // TODO(ianh): avoid code duplication
+ if (child.parentData is! SectorChildListParentData)
+ child.parentData = new SectorChildListParentData();
+ }
+
+ SectorDimensions getIntrinsicDimensions(SectorConstraints constraints, double radius) {
+ double outerDeltaRadius = constraints.constrainDeltaRadius(desiredDeltaRadius);
+ double innerDeltaRadius = outerDeltaRadius - padding * 2.0;
+ double childRadius = radius + padding;
+ double paddingTheta = math.atan(padding / (radius + outerDeltaRadius));
+ double innerTheta = paddingTheta; // increments with each child
+ double remainingDeltaTheta = constraints.maxDeltaTheta - (innerTheta + paddingTheta);
+ RenderSector child = firstChild;
+ while (child != null) {
+ SectorConstraints innerConstraints = new SectorConstraints(
+ maxDeltaRadius: innerDeltaRadius,
+ maxDeltaTheta: remainingDeltaTheta
+ );
+ SectorDimensions childDimensions = child.getIntrinsicDimensions(innerConstraints, childRadius);
+ innerTheta += childDimensions.deltaTheta;
+ remainingDeltaTheta -= childDimensions.deltaTheta;
+ assert(child.parentData is SectorChildListParentData);
+ child = child.parentData.nextSibling;
+ if (child != null) {
+ innerTheta += paddingTheta;
+ remainingDeltaTheta -= paddingTheta;
+ }
+ }
+ return new SectorDimensions.withConstraints(constraints,
+ deltaRadius: outerDeltaRadius,
+ deltaTheta: innerTheta);
+ }
+
+ void performLayout() {
+ assert(this.parentData is SectorParentData);
+ deltaRadius = constraints.constrainDeltaRadius(desiredDeltaRadius);
+ assert(deltaRadius < double.INFINITY);
+ double innerDeltaRadius = deltaRadius - padding * 2.0;
+ double childRadius = this.parentData.radius + padding;
+ double paddingTheta = math.atan(padding / (this.parentData.radius + deltaRadius));
+ double innerTheta = paddingTheta; // increments with each child
+ double remainingDeltaTheta = constraints.maxDeltaTheta - (innerTheta + paddingTheta);
+ RenderSector child = firstChild;
+ while (child != null) {
+ SectorConstraints innerConstraints = new SectorConstraints(
+ maxDeltaRadius: innerDeltaRadius,
+ maxDeltaTheta: remainingDeltaTheta
+ );
+ assert(child.parentData is SectorParentData);
+ child.parentData.theta = innerTheta;
+ child.parentData.radius = childRadius;
+ child.layout(innerConstraints, parentUsesSize: true);
+ innerTheta += child.deltaTheta;
+ remainingDeltaTheta -= child.deltaTheta;
+ assert(child.parentData is SectorChildListParentData);
+ child = child.parentData.nextSibling;
+ if (child != null) {
+ innerTheta += paddingTheta;
+ remainingDeltaTheta -= paddingTheta;
+ }
+ }
+ deltaTheta = innerTheta;
+ }
+
+ // offset must point to the center of our circle
+ // each sector then knows how to paint itself at its location
+ void paint(PaintingCanvas canvas, Offset offset) {
+ // TODO(ianh): avoid code duplication
+ super.paint(canvas, offset);
+ RenderSector child = firstChild;
+ while (child != null) {
+ assert(child.parentData is SectorChildListParentData);
+ canvas.paintChild(child, offset.toPoint());
+ child = child.parentData.nextSibling;
+ }
+ }
+
+}
+
+class RenderSectorSlice extends RenderSectorWithChildren {
+ // lays out RenderSector children in a stack
+
+ RenderSectorSlice({
+ BoxDecoration decoration,
+ double deltaTheta: kTwoPi,
+ double padding: 0.0
+ }) : super(decoration), _padding = padding, _desiredDeltaTheta = deltaTheta;
+
+ double _desiredDeltaTheta;
+ double get desiredDeltaTheta => _desiredDeltaTheta;
+ void set desiredDeltaTheta(double value) {
+ assert(value != null);
+ if (_desiredDeltaTheta != value) {
+ _desiredDeltaTheta = value;
+ markNeedsLayout();
+ }
+ }
+
+ double _padding;
+ double get padding => _padding;
+ void set padding(double value) {
+ // TODO(ianh): avoid code duplication
+ assert(value != null);
+ if (_padding != value) {
+ _padding = value;
+ markNeedsLayout();
+ }
+ }
+
+ void setupParentData(RenderObject child) {
+ // TODO(ianh): avoid code duplication
+ if (child.parentData is! SectorChildListParentData)
+ child.parentData = new SectorChildListParentData();
+ }
+
+ SectorDimensions getIntrinsicDimensions(SectorConstraints constraints, double radius) {
+ assert(this.parentData is SectorParentData);
+ double paddingTheta = math.atan(padding / this.parentData.radius);
+ double outerDeltaTheta = constraints.constrainDeltaTheta(desiredDeltaTheta);
+ double innerDeltaTheta = outerDeltaTheta - paddingTheta * 2.0;
+ double childRadius = this.parentData.radius + padding;
+ double remainingDeltaRadius = constraints.maxDeltaRadius - (padding * 2.0);
+ RenderSector child = firstChild;
+ while (child != null) {
+ SectorConstraints innerConstraints = new SectorConstraints(
+ maxDeltaRadius: remainingDeltaRadius,
+ maxDeltaTheta: innerDeltaTheta
+ );
+ SectorDimensions childDimensions = child.getIntrinsicDimensions(innerConstraints, childRadius);
+ childRadius += childDimensions.deltaRadius;
+ remainingDeltaRadius -= childDimensions.deltaRadius;
+ assert(child.parentData is SectorChildListParentData);
+ child = child.parentData.nextSibling;
+ childRadius += padding;
+ remainingDeltaRadius -= padding;
+ }
+ return new SectorDimensions.withConstraints(constraints,
+ deltaRadius: childRadius - this.parentData.radius,
+ deltaTheta: outerDeltaTheta);
+ }
+
+ void performLayout() {
+ assert(this.parentData is SectorParentData);
+ deltaTheta = constraints.constrainDeltaTheta(desiredDeltaTheta);
+ assert(deltaTheta <= kTwoPi);
+ double paddingTheta = math.atan(padding / this.parentData.radius);
+ double innerTheta = this.parentData.theta + paddingTheta;
+ double innerDeltaTheta = deltaTheta - paddingTheta * 2.0;
+ double childRadius = this.parentData.radius + padding;
+ double remainingDeltaRadius = constraints.maxDeltaRadius - (padding * 2.0);
+ RenderSector child = firstChild;
+ while (child != null) {
+ SectorConstraints innerConstraints = new SectorConstraints(
+ maxDeltaRadius: remainingDeltaRadius,
+ maxDeltaTheta: innerDeltaTheta
+ );
+ child.parentData.theta = innerTheta;
+ child.parentData.radius = childRadius;
+ child.layout(innerConstraints, parentUsesSize: true);
+ childRadius += child.deltaRadius;
+ remainingDeltaRadius -= child.deltaRadius;
+ assert(child.parentData is SectorChildListParentData);
+ child = child.parentData.nextSibling;
+ childRadius += padding;
+ remainingDeltaRadius -= padding;
+ }
+ deltaRadius = childRadius - this.parentData.radius;
+ }
+
+ // offset must point to the center of our circle
+ // each sector then knows how to paint itself at its location
+ void paint(PaintingCanvas canvas, Offset offset) {
+ // TODO(ianh): avoid code duplication
+ super.paint(canvas, offset);
+ RenderSector child = firstChild;
+ while (child != null) {
+ assert(child.parentData is SectorChildListParentData);
+ canvas.paintChild(child, offset.toPoint());
+ child = child.parentData.nextSibling;
+ }
+ }
+
+}
+
+class RenderBoxToRenderSectorAdapter extends RenderBox {
+
+ RenderBoxToRenderSectorAdapter({ double innerRadius: 0.0, RenderSector child }) :
+ _innerRadius = innerRadius {
+ _child = child;
+ adoptChild(_child);
+ }
+
+ double _innerRadius;
+ double get innerRadius => _innerRadius;
+ void set innerRadius(double value) {
+ _innerRadius = value;
+ markNeedsLayout();
+ }
+
+ RenderSector _child;
+ RenderSector get child => _child;
+ void set child(RenderSector value) {
+ if (_child != null)
+ dropChild(_child);
+ _child = value;
+ adoptChild(_child);
+ markNeedsLayout();
+ }
+
+ void setupParentData(RenderObject child) {
+ if (child.parentData is! SectorParentData)
+ child.parentData = new SectorParentData();
+ }
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ if (child == null)
+ return super.getMinIntrinsicWidth(constraints);
+ return getIntrinsicDimensions(constraints).width;
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ if (child == null)
+ return super.getMaxIntrinsicWidth(constraints);
+ return getIntrinsicDimensions(constraints).width;
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ if (child == null)
+ return super.getMinIntrinsicHeight(constraints);
+ return getIntrinsicDimensions(constraints).height;
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ if (child == null)
+ return super.getMaxIntrinsicHeight(constraints);
+ return getIntrinsicDimensions(constraints).height;
+ }
+
+ Size getIntrinsicDimensions(BoxConstraints constraints) {
+ assert(child is RenderSector);
+ assert(child.parentData is SectorParentData);
+ assert(!constraints.isInfinite);
+ double maxChildDeltaRadius = math.min(constraints.maxWidth, constraints.maxHeight) / 2.0 - innerRadius;
+ SectorDimensions childDimensions = child.getIntrinsicDimensions(new SectorConstraints(maxDeltaRadius: maxChildDeltaRadius), innerRadius);
+ double dimension = (innerRadius + childDimensions.deltaRadius) * 2.0;
+ return constraints.constrain(new Size(dimension, dimension));
+ }
+
+ void performLayout() {
+ if (child == null) {
+ size = constraints.constrain(Size.zero);
+ } else {
+ assert(child is RenderSector);
+ assert(!constraints.isInfinite);
+ double maxChildDeltaRadius = math.min(constraints.maxWidth, constraints.maxHeight) / 2.0 - innerRadius;
+ assert(child.parentData is SectorParentData);
+ child.parentData.radius = innerRadius;
+ child.parentData.theta = 0.0;
+ child.layout(new SectorConstraints(maxDeltaRadius: maxChildDeltaRadius), parentUsesSize: true);
+ double dimension = (innerRadius + child.deltaRadius) * 2.0;
+ size = constraints.constrain(new Size(dimension, dimension));
+ }
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ super.paint(canvas, offset);
+ if (child != null) {
+ Rect bounds = offset & size;
+ // we move the offset to the center of the circle for the RenderSectors
+ canvas.paintChild(child, bounds.center);
+ }
+ }
+
+ bool hitTest(HitTestResult result, { Point position }) {
+ double x = position.x;
+ double y = position.y;
+ if (child == null)
+ return false;
+ // translate to our origin
+ x -= size.width/2.0;
+ y -= size.height/2.0;
+ // convert to radius/theta
+ double radius = math.sqrt(x*x+y*y);
+ double theta = (math.atan2(x, -y) - math.PI/2.0) % kTwoPi;
+ if (radius < innerRadius)
+ return false;
+ if (radius >= innerRadius + child.deltaRadius)
+ return false;
+ if (theta > child.deltaTheta)
+ return false;
+ child.hitTest(result, radius: radius, theta: theta);
+ result.add(new BoxHitTestEntry(this, position));
+ return true;
+ }
+
+}
+
+class RenderSolidColor extends RenderDecoratedSector {
+ RenderSolidColor(Color backgroundColor, {
+ this.desiredDeltaRadius: double.INFINITY,
+ this.desiredDeltaTheta: kTwoPi
+ }) : this.backgroundColor = backgroundColor,
+ super(new BoxDecoration(backgroundColor: backgroundColor));
+
+ double desiredDeltaRadius;
+ double desiredDeltaTheta;
+ final Color backgroundColor;
+
+ SectorDimensions getIntrinsicDimensions(SectorConstraints constraints, double radius) {
+ return new SectorDimensions.withConstraints(constraints, deltaTheta: desiredDeltaTheta);
+ }
+
+ void performLayout() {
+ deltaRadius = constraints.constrainDeltaRadius(desiredDeltaRadius);
+ deltaTheta = constraints.constrainDeltaTheta(desiredDeltaTheta);
+ }
+
+ void handleEvent(sky.Event event, HitTestEntry entry) {
+ if (event.type == 'pointerdown')
+ decoration = new BoxDecoration(backgroundColor: const Color(0xFFFF0000));
+ else if (event.type == 'pointerup')
+ decoration = new BoxDecoration(backgroundColor: backgroundColor);
+ }
+}
+
+RenderBox buildSectorExample() {
+ RenderSectorRing rootCircle = new RenderSectorRing(padding: 20.0);
+ rootCircle.add(new RenderSolidColor(const Color(0xFF00FFFF), desiredDeltaTheta: kTwoPi * 0.15));
+ rootCircle.add(new RenderSolidColor(const Color(0xFF0000FF), desiredDeltaTheta: kTwoPi * 0.4));
+ RenderSectorSlice stack = new RenderSectorSlice(padding: 2.0);
+ stack.add(new RenderSolidColor(const Color(0xFFFFFF00), desiredDeltaRadius: 20.0));
+ stack.add(new RenderSolidColor(const Color(0xFFFF9000), desiredDeltaRadius: 20.0));
+ stack.add(new RenderSolidColor(const Color(0xFF00FF00)));
+ rootCircle.add(stack);
+ return new RenderBoxToRenderSectorAdapter(innerRadius: 50.0, child: rootCircle);
+}
+
+void main() {
+ new SkyBinding(root: buildSectorExample());
+}
diff --git a/packages/flutter/example/rendering/shadowed_box.dart b/packages/flutter/example/rendering/shadowed_box.dart
new file mode 100644
index 0000000..702c5f7
--- /dev/null
+++ b/packages/flutter/example/rendering/shadowed_box.dart
@@ -0,0 +1,29 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky';
+
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/sky_binding.dart';
+import 'package:sky/theme/colors.dart';
+import 'package:sky/theme/shadows.dart';
+
+void main() {
+ var coloredBox = new RenderDecoratedBox(
+ decoration: new BoxDecoration(
+ gradient: new RadialGradient(
+ center: Point.origin, radius: 500.0,
+ colors: [Yellow[500], Blue[500]]),
+ boxShadow: shadows[3])
+ );
+ var paddedBox = new RenderPadding(
+ padding: const EdgeDims.all(50.0),
+ child: coloredBox);
+ new SkyBinding(root: new RenderDecoratedBox(
+ decoration: const BoxDecoration(
+ backgroundColor: const Color(0xFFFFFFFF)
+ ),
+ child: paddedBox
+ ));
+}
diff --git a/packages/flutter/example/rendering/simple_autolayout.dart b/packages/flutter/example/rendering/simple_autolayout.dart
new file mode 100644
index 0000000..23817fc
--- /dev/null
+++ b/packages/flutter/example/rendering/simple_autolayout.dart
@@ -0,0 +1,65 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/rendering/sky_binding.dart';
+import 'package:sky/rendering/auto_layout.dart';
+import 'package:cassowary/cassowary.dart' as al;
+
+void main() {
+ RenderDecoratedBox c1 = new RenderDecoratedBox(
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFFFF0000))
+ );
+
+ RenderDecoratedBox c2 = new RenderDecoratedBox(
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFF00FF00))
+ );
+
+ RenderDecoratedBox c3 = new RenderDecoratedBox(
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFF0000FF))
+ );
+
+ RenderDecoratedBox c4 = new RenderDecoratedBox(
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFFFFFFFF))
+ );
+
+ RenderAutoLayout root = new RenderAutoLayout(children: [c1, c2, c3, c4]);
+
+ AutoLayoutParentData p1 = c1.parentData;
+ AutoLayoutParentData p2 = c2.parentData;
+ AutoLayoutParentData p3 = c3.parentData;
+ AutoLayoutParentData p4 = c4.parentData;
+
+ root.addConstraints(<al.Constraint>[
+ // Sum of widths of each box must be equal to that of the container
+ (p1.width + p2.width + p3.width == root.width) as al.Constraint,
+
+ // The boxes must be stacked left to right
+ p1.rightEdge <= p2.leftEdge,
+ p2.rightEdge <= p3.leftEdge,
+
+ // The widths of the first and the third boxes should be equal
+ (p1.width == p3.width) as al.Constraint,
+
+ // The width of the second box should be twice as much as that of the first
+ // and third
+ (p2.width * al.cm(2.0) == p1.width) as al.Constraint,
+
+ // The height of the three boxes should be equal to that of the container
+ (p1.height == p2.height) as al.Constraint,
+ (p2.height == p3.height) as al.Constraint,
+ (p3.height == root.height) as al.Constraint,
+
+ // The fourth box should be half as wide as the second and must be attached
+ // to the right edge of the same (by its center)
+ (p4.width == p2.width / al.cm(2.0)) as al.Constraint,
+ (p4.height == al.cm(50.0)) as al.Constraint,
+ (p4.horizontalCenter == p2.rightEdge) as al.Constraint,
+ (p4.verticalCenter == p2.height / al.cm(2.0)) as al.Constraint,
+ ]);
+
+ new SkyBinding(root: root);
+}
diff --git a/packages/flutter/example/rendering/solid_color_box.dart b/packages/flutter/example/rendering/solid_color_box.dart
new file mode 100644
index 0000000..b6624c6
--- /dev/null
+++ b/packages/flutter/example/rendering/solid_color_box.dart
@@ -0,0 +1,51 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+import 'package:sky/rendering/object.dart';
+import 'package:sky/rendering/box.dart';
+
+class RenderSolidColorBox extends RenderDecoratedBox {
+ final Size desiredSize;
+ final Color backgroundColor;
+
+ RenderSolidColorBox(Color backgroundColor, { this.desiredSize: Size.infinite })
+ : backgroundColor = backgroundColor,
+ super(decoration: new BoxDecoration(backgroundColor: backgroundColor));
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ return constraints.constrainHeight(
+ this.desiredSize == Size.infinite ? 0.0 : desiredSize.width
+ );
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ return constraints.constrainWidth(
+ this.desiredSize == Size.infinite ? 0.0 : desiredSize.width
+ );
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ return constraints.constrainHeight(
+ this.desiredSize == Size.infinite ? 0.0 : desiredSize.height
+ );
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ return constraints.constrainHeight(
+ this.desiredSize == Size.infinite ? 0.0 : desiredSize.height
+ );
+ }
+
+ void performLayout() {
+ size = constraints.constrain(desiredSize);
+ }
+
+ void handleEvent(sky.Event event, BoxHitTestEntry entry) {
+ if (event.type == 'pointerdown')
+ decoration = new BoxDecoration(backgroundColor: const Color(0xFFFF0000));
+ else if (event.type == 'pointerup')
+ decoration = new BoxDecoration(backgroundColor: backgroundColor);
+ }
+}
diff --git a/packages/flutter/example/rendering/spinning_flex.dart b/packages/flutter/example/rendering/spinning_flex.dart
new file mode 100644
index 0000000..a8f9d9c
--- /dev/null
+++ b/packages/flutter/example/rendering/spinning_flex.dart
@@ -0,0 +1,49 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/base/scheduler.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/rendering/sky_binding.dart';
+import 'package:vector_math/vector_math.dart';
+
+import 'solid_color_box.dart';
+
+double timeBase;
+RenderTransform transformBox;
+
+void main() {
+ RenderFlex flexRoot = new RenderFlex(direction: FlexDirection.vertical);
+
+ void addFlexChildSolidColor(RenderFlex parent, sky.Color backgroundColor, { int flex: 0 }) {
+ RenderSolidColorBox child = new RenderSolidColorBox(backgroundColor);
+ parent.add(child);
+ child.parentData.flex = flex;
+ }
+
+ addFlexChildSolidColor(flexRoot, const sky.Color(0xFFFF00FF), flex: 1);
+ addFlexChildSolidColor(flexRoot, const sky.Color(0xFFFFFF00), flex: 2);
+ addFlexChildSolidColor(flexRoot, const sky.Color(0xFF00FFFF), flex: 1);
+
+ transformBox = new RenderTransform(child: flexRoot, transform: new Matrix4.identity());
+
+ RenderPadding root = new RenderPadding(padding: new EdgeDims.all(20.0), child: transformBox);
+
+ new SkyBinding(root: root);
+
+ addPersistentFrameCallback(rotate);
+}
+
+void rotate(double timeStamp) {
+ if (timeBase == null)
+ timeBase = timeStamp;
+ double delta = (timeStamp - timeBase) / 1000; // radians
+
+ transformBox.setIdentity();
+ transformBox.translate(transformBox.size.width / 2.0, transformBox.size.height / 2.0);
+ transformBox.rotateZ(delta);
+ transformBox.translate(-transformBox.size.width / 2.0, -transformBox.size.height / 2.0);
+}
diff --git a/packages/flutter/example/rendering/touch_demo.dart b/packages/flutter/example/rendering/touch_demo.dart
new file mode 100644
index 0000000..edd6f12
--- /dev/null
+++ b/packages/flutter/example/rendering/touch_demo.dart
@@ -0,0 +1,91 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/rendering/paragraph.dart';
+import 'package:sky/rendering/sky_binding.dart';
+import 'package:sky/rendering/stack.dart';
+import 'package:sky/theme/colors.dart';
+
+// Material design colors. :p
+List<Color> colors = [
+ Teal[500],
+ Amber[500],
+ Purple[500],
+ LightBlue[500],
+ DeepPurple[500],
+ Lime[500],
+];
+
+class Dot {
+ final Paint _paint;
+ Point position = Point.origin;
+ double radius = 0.0;
+
+ Dot({ Color color }) : _paint = new Paint()..color = color;
+
+ void update(sky.PointerEvent event) {
+ position = new Point(event.x, event.y);
+ radius = 5 + (95 * event.pressure);
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ canvas.drawCircle(position + offset, radius, _paint);
+ }
+}
+
+class RenderTouchDemo extends RenderBox {
+ Map<int, Dot> dots = new Map();
+
+ RenderTouchDemo();
+
+ void handleEvent(sky.Event event, BoxHitTestEntry entry) {
+ if (event is sky.PointerEvent) {
+ switch (event.type) {
+ case 'pointerdown':
+ Color color = colors[event.pointer.remainder(colors.length)];
+ dots[event.pointer] = new Dot(color: color)..update(event);
+ break;
+ case 'pointerup':
+ dots.remove(event.pointer);
+ break;
+ case 'pointercancel':
+ dots = new Map();
+ break;
+ case 'pointermove':
+ dots[event.pointer].update(event);
+ break;
+ }
+ }
+ markNeedsPaint();
+ }
+
+ void performLayout() {
+ size = constraints.biggest;
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ Paint white = new Paint()
+ ..color = const Color(0xFFFFFFFF);
+ canvas.drawRect(offset & size, white);
+ for (Dot dot in dots.values)
+ dot.paint(canvas, offset);
+ }
+}
+
+void main() {
+ var paragraph = new RenderParagraph(new InlineText("Touch me!"));
+ var stack = new RenderStack(children: [
+ new RenderTouchDemo(),
+ paragraph,
+ ]);
+ // Prevent the RenderParagraph from filling the whole screen so
+ // that it doesn't eat events.
+ paragraph.parentData..top = 40.0
+ ..left = 20.0;
+ new SkyBinding(root: stack);
+}
diff --git a/packages/flutter/example/rendering/transform.dart b/packages/flutter/example/rendering/transform.dart
new file mode 100644
index 0000000..bbb7b90
--- /dev/null
+++ b/packages/flutter/example/rendering/transform.dart
@@ -0,0 +1,29 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/rendering/sky_binding.dart';
+import 'package:vector_math/vector_math.dart';
+
+void main() {
+ RenderDecoratedBox green = new RenderDecoratedBox(
+ decoration: new BoxDecoration(backgroundColor: const sky.Color(0xFF00FF00))
+ );
+ RenderConstrainedBox box = new RenderConstrainedBox(
+ additionalConstraints: new BoxConstraints.tight(const sky.Size(200.0, 200.0)),
+ child: green
+ );
+
+ Matrix4 transform = new Matrix4.identity();
+ RenderTransform spin = new RenderTransform(
+ transform: transform, child: box);
+ spin.rotateZ(1.0);
+
+ RenderFlex flex = new RenderFlex();
+ flex.add(spin);
+ new SkyBinding(root: flex);
+}
diff --git a/packages/flutter/example/stocks/BUILD.gn b/packages/flutter/example/stocks/BUILD.gn
new file mode 100644
index 0000000..d1484fd
--- /dev/null
+++ b/packages/flutter/example/stocks/BUILD.gn
@@ -0,0 +1,14 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//sky/build/sky_app.gni")
+
+sky_app("stocks") {
+ main_dart = "lib/main.dart"
+ manifest = "sky.yaml"
+
+ if (is_android) {
+ apk_name = "Stocks"
+ }
+}
diff --git a/packages/flutter/example/stocks/apk/AndroidManifest.xml b/packages/flutter/example/stocks/apk/AndroidManifest.xml
new file mode 100644
index 0000000..32e539f
--- /dev/null
+++ b/packages/flutter/example/stocks/apk/AndroidManifest.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2015 The Chromium Authors. All rights reserved.
+ Use of this source code is governed by a BSD-style license that can be
+ found in the LICENSE file.
+ -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="org.domokit.stocks">
+
+ <uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />
+ <uses-permission android:name="android.permission.INTERNET"/>
+
+ <application android:name="org.domokit.sky.shell.SkyApplication" android:label="Stocks">
+ <activity android:name="org.domokit.sky.shell.SkyActivity"
+ android:launchMode="singleTask"
+ android:theme="@android:style/Theme.Black.NoTitleBar"
+ android:configChanges="orientation|keyboardHidden|keyboard|screenSize"
+ android:hardwareAccelerated="true">
+ <intent-filter>
+ <action android:name="android.intent.action.MAIN"/>
+ <category android:name="android.intent.category.LAUNCHER"/>
+ </intent-filter>
+ </activity>
+ </application>
+ </manifest>
diff --git a/packages/flutter/example/stocks/data/stock_data_0.json b/packages/flutter/example/stocks/data/stock_data_0.json
new file mode 100644
index 0000000..c634894
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_0.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "AAIT",
+ "iShares MSCI All Country Asia Information Technology Index Fun",
+ "35.05",
+ "$7.01M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/aait"
+ ],
+ [
+ "AAL",
+ "American Airlines Group, Inc.",
+ "51.02",
+ "$36.59B",
+ "n/a",
+ "Transportation",
+ "Air Freight/Delivery Services",
+ "http://www.nasdaq.com/symbol/aal"
+ ],
+ [
+ "AAME",
+ "Atlantic American Corporation",
+ "3.99",
+ "$82.28M",
+ "n/a",
+ "Finance",
+ "Life Insurance",
+ "http://www.nasdaq.com/symbol/aame"
+ ],
+ [
+ "AAOI",
+ "Applied Optoelectronics, Inc.",
+ "10.22",
+ "$151.42M",
+ "2013",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/aaoi"
+ ],
+ [
+ "AAON",
+ "AAON, Inc.",
+ "23.74",
+ "$1.29B",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/aaon"
+ ],
+ [
+ "AAPL",
+ "Apple Inc.",
+ "129.495",
+ "$754.28B",
+ "1980",
+ "Technology",
+ "Computer Manufacturing",
+ "http://www.nasdaq.com/symbol/aapl"
+ ],
+ [
+ "AAVL",
+ "Avalanche Biotechnologies, Inc.",
+ "40.06",
+ "$995.08M",
+ "2014",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/aavl"
+ ],
+ [
+ "AAWW",
+ "Atlas Air Worldwide Holdings",
+ "47.23",
+ "$1.17B",
+ "n/a",
+ "Transportation",
+ "Transportation Services",
+ "http://www.nasdaq.com/symbol/aaww"
+ ],
+ [
+ "AAXJ",
+ "iShares MSCI All Country Asia ex Japan Index Fund",
+ "63.66",
+ "$3.67B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/aaxj"
+ ],
+ [
+ "ABAC",
+ "Aoxin Tianli Group, Inc.",
+ "1.61",
+ "$44.7M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/abac"
+ ],
+ [
+ "ABAX",
+ "ABAXIS, Inc.",
+ "60.17",
+ "$1.36B",
+ "1992",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/abax"
+ ],
+ [
+ "ABCB",
+ "Ameris Bancorp",
+ "26",
+ "$732.18M",
+ "1994",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/abcb"
+ ],
+ [
+ "ABCD",
+ "Cambium Learning Group, Inc.",
+ "2.66",
+ "$119.48M",
+ "n/a",
+ "Consumer Services",
+ "Publishing",
+ "http://www.nasdaq.com/symbol/abcd"
+ ],
+ [
+ "ABCO",
+ "The Advisory Board Company",
+ "53.5",
+ "$2.06B",
+ "2001",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/abco"
+ ],
+ [
+ "ABCW",
+ "Anchor BanCorp Wisconsin Inc.",
+ "34.63",
+ "$320.16M",
+ "2014",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/abcw"
+ ],
+ [
+ "ABDC",
+ "Alcentra Capital Corp.",
+ "13.59",
+ "$183.69M",
+ "2014",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/abdc"
+ ],
+ [
+ "ABGB",
+ "Abengoa, S.A.",
+ "17.53",
+ "$2.94B",
+ "2013",
+ "Consumer Services",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/abgb"
+ ],
+ [
+ "ABIO",
+ "ARCA biopharma, Inc.",
+ "0.6975",
+ "$14.75M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/abio"
+ ],
+ [
+ "ABMD",
+ "ABIOMED, Inc.",
+ "60.35",
+ "$2.48B",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/abmd"
+ ],
+ [
+ "ABTL",
+ "Autobytel Inc.",
+ "10",
+ "$90.29M",
+ "1999",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/abtl"
+ ],
+ [
+ "ABY",
+ "Abengoa Yield plc",
+ "34.73",
+ "$2.78B",
+ "2014",
+ "Public Utilities",
+ "Electric Utilities: Central",
+ "http://www.nasdaq.com/symbol/aby"
+ ],
+ [
+ "ACAD",
+ "ACADIA Pharmaceuticals Inc.",
+ "37.45",
+ "$3.74B",
+ "1985",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/acad"
+ ],
+ [
+ "ACAS",
+ "American Capital, Ltd.",
+ "14.75",
+ "$3.98B",
+ "1997",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/acas"
+ ],
+ [
+ "ACAT",
+ "Arctic Cat Inc.",
+ "36.36",
+ "$470.75M",
+ "1990",
+ "Capital Goods",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/acat"
+ ],
+ [
+ "ACET",
+ "Aceto Corporation",
+ "20.95",
+ "$609.83M",
+ "n/a",
+ "Health Care",
+ "Other Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/acet"
+ ],
+ [
+ "ACFC",
+ "Atlantic Coast Financial Corporation",
+ "3.88",
+ "$60.18M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/acfc"
+ ],
+ [
+ "ACFN",
+ "Acorn Energy, Inc.",
+ "0.6124",
+ "$16.21M",
+ "n/a",
+ "Consumer Services",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/acfn"
+ ],
+ [
+ "ACGL",
+ "Arch Capital Group Ltd.",
+ "60.04",
+ "$7.75B",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/acgl"
+ ],
+ [
+ "ACHC",
+ "Acadia Healthcare Company, Inc.",
+ "63.795",
+ "$4.21B",
+ "n/a",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/achc"
+ ],
+ [
+ "ACHN",
+ "Achillion Pharmaceuticals, Inc.",
+ "12.16",
+ "$1.39B",
+ "2006",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/achn"
+ ],
+ [
+ "ACIW",
+ "ACI Worldwide, Inc.",
+ "20.46",
+ "$2.35B",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/aciw"
+ ],
+ [
+ "ACLS",
+ "Axcelis Technologies, Inc.",
+ "2.7",
+ "$302.41M",
+ "2000",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/acls"
+ ],
+ [
+ "ACNB",
+ "ACNB Corporation",
+ "20.25",
+ "$121.73M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/acnb"
+ ],
+ [
+ "ACOR",
+ "Acorda Therapeutics, Inc.",
+ "37.41",
+ "$1.57B",
+ "2006",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/acor"
+ ],
+ [
+ "ACPW",
+ "Active Power, Inc.",
+ "1.83",
+ "$42.26M",
+ "2000",
+ "Public Utilities",
+ "Electric Utilities: Central",
+ "http://www.nasdaq.com/symbol/acpw"
+ ],
+ [
+ "ACRX",
+ "AcelRx Pharmaceuticals, Inc.",
+ "8.13",
+ "$355.34M",
+ "2011",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/acrx"
+ ],
+ [
+ "ACSF",
+ "American Capital Senior Floating, Ltd.",
+ "12.9",
+ "$129M",
+ "2014",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/acsf"
+ ],
+ [
+ "ACST",
+ "Acasti Pharma, Inc.",
+ "0.5592",
+ "$59.52M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/acst"
+ ],
+ [
+ "ACTA",
+ "Actua Corporation",
+ "15.37",
+ "$623.74M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/acta"
+ ],
+ [
+ "ACTG",
+ "Acacia Research Corporation",
+ "12.83",
+ "$643.05M",
+ "n/a",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/actg"
+ ],
+ [
+ "ACTS",
+ "Actions Semiconductor Co., Ltd.",
+ "1.59",
+ "$136.74M",
+ "2005",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/acts"
+ ],
+ [
+ "ACUR",
+ "Acura Pharmaceuticals, Inc.",
+ "0.63",
+ "$29.51M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/acur"
+ ],
+ [
+ "ACWI",
+ "iShares MSCI ACWI Index Fund",
+ "61.01",
+ "$6.59B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/acwi"
+ ],
+ [
+ "ACWX",
+ "iShares MSCI ACWI ex US Index Fund",
+ "45.21",
+ "$1.84B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/acwx"
+ ],
+ [
+ "ACXM",
+ "Acxiom Corporation",
+ "19.66",
+ "$1.52B",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/acxm"
+ ],
+ [
+ "ADAT",
+ "Authentidate Holding Corp.",
+ "0.82",
+ "$34.25M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/adat"
+ ],
+ [
+ "ADBE",
+ "Adobe Systems Incorporated",
+ "78.55",
+ "$39.14B",
+ "1986",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/adbe"
+ ],
+ [
+ "ADEP",
+ "Adept Technology, Inc.",
+ "6.5",
+ "$85.17M",
+ "n/a",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/adep"
+ ],
+ [
+ "ADHD",
+ "Alcobra Ltd.",
+ "7.43",
+ "$157.35M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/adhd"
+ ],
+ [
+ "ADI",
+ "Analog Devices, Inc.",
+ "59.13",
+ "$18.43B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/adi"
+ ],
+ [
+ "ADMA",
+ "ADMA Biologics Inc",
+ "10.48",
+ "$97.38M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/adma"
+ ],
+ [
+ "ADMP",
+ "Adamis Pharmaceuticals Corporation",
+ "6.51",
+ "$84.32M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/admp"
+ ],
+ [
+ "ADMS",
+ "Adamas Pharmaceuticals, Inc.",
+ "17.28",
+ "$295.93M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/adms"
+ ],
+ [
+ "ADNC",
+ "Audience, Inc.",
+ "4.67",
+ "$107.3M",
+ "2012",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/adnc"
+ ],
+ [
+ "ADP",
+ "Automatic Data Processing, Inc.",
+ "88.685",
+ "$42.14B",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/adp"
+ ],
+ [
+ "ADRA",
+ "BLDRS Asia 50 ADR Index Fund",
+ "30.7699",
+ "$27.69M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/adra"
+ ],
+ [
+ "ADRD",
+ "BLDRS Developed Markets 100 ADR Index Fund",
+ "23.87",
+ "$54.9M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/adrd"
+ ],
+ [
+ "ADRE",
+ "BLDRS Emerging Markets 50 ADR Index Fund",
+ "36.68",
+ "$185.23M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/adre"
+ ],
+ [
+ "ADRU",
+ "BLDRS Europe 100 ADR Index Fund",
+ "23.5754",
+ "$17.68M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/adru"
+ ],
+ [
+ "ADSK",
+ "Autodesk, Inc.",
+ "62.37",
+ "$14.19B",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/adsk"
+ ],
+ [
+ "ADTN",
+ "ADTRAN, Inc.",
+ "23",
+ "$1.25B",
+ "1994",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/adtn"
+ ],
+ [
+ "ADUS",
+ "Addus HomeCare Corporation",
+ "21.4",
+ "$235.18M",
+ "2009",
+ "Health Care",
+ "Medical/Nursing Services",
+ "http://www.nasdaq.com/symbol/adus"
+ ],
+ [
+ "ADVS",
+ "Advent Software, Inc.",
+ "44.17",
+ "$2.31B",
+ "1995",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/advs"
+ ],
+ [
+ "ADXS",
+ "Advaxis, Inc.",
+ "8.22",
+ "$194.36M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/adxs"
+ ],
+ [
+ "ADXSW",
+ "Advaxis, Inc.",
+ "5.2",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/adxsw"
+ ],
+ [
+ "AEGN",
+ "Aegion Corp",
+ "16.66",
+ "$622.78M",
+ "n/a",
+ "Basic Industries",
+ "Water Supply",
+ "http://www.nasdaq.com/symbol/aegn"
+ ],
+ [
+ "AEGR",
+ "Aegerion Pharmaceuticals, Inc.",
+ "26.49",
+ "$753.27M",
+ "2010",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/aegr"
+ ],
+ [
+ "AEHR",
+ "Aehr Test Systems",
+ "2.39",
+ "$30.67M",
+ "1997",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/aehr"
+ ],
+ [
+ "AEIS",
+ "Advanced Energy Industries, Inc.",
+ "26.53",
+ "$1.06B",
+ "1995",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/aeis"
+ ],
+ [
+ "AEPI",
+ "AEP Industries Inc.",
+ "51.32",
+ "$260.74M",
+ "1986",
+ "Capital Goods",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/aepi"
+ ],
+ [
+ "AERI",
+ "Aerie Pharmaceuticals, Inc.",
+ "27.71",
+ "$664.61M",
+ "2013",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/aeri"
+ ],
+ [
+ "AETI",
+ "American Electric Technologies, Inc.",
+ "4.14",
+ "$33.89M",
+ "n/a",
+ "Energy",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/aeti"
+ ],
+ [
+ "AEY",
+ "ADDvantage Technologies Group, Inc.",
+ "2.4568",
+ "$24.67M",
+ "n/a",
+ "Consumer Services",
+ "Office Equipment/Supplies/Services",
+ "http://www.nasdaq.com/symbol/aey"
+ ],
+ [
+ "AEZS",
+ "AEterna Zentaris Inc.",
+ "0.601",
+ "$39.37M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/aezs"
+ ],
+ [
+ "AFAM",
+ "Almost Family Inc",
+ "29.46",
+ "$279.16M",
+ "n/a",
+ "Health Care",
+ "Medical/Nursing Services",
+ "http://www.nasdaq.com/symbol/afam"
+ ],
+ [
+ "AFCB",
+ "Athens Bancshares Corporation",
+ "25.45",
+ "$45.85M",
+ "2010",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/afcb"
+ ],
+ [
+ "AFFX",
+ "Affymetrix, Inc.",
+ "11.84",
+ "$884.63M",
+ "1996",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/affx"
+ ],
+ [
+ "AFH",
+ "Atlas Financial Holdings, Inc.",
+ "17.65",
+ "$207.77M",
+ "2013",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/afh"
+ ],
+ [
+ "AFMD",
+ "Affimed N.V.",
+ "5.43",
+ "$130.23M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/afmd"
+ ],
+ [
+ "AFOP",
+ "Alliance Fiber Optic Products, Inc.",
+ "16.98",
+ "$316.72M",
+ "2000",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/afop"
+ ],
+ [
+ "AFSI",
+ "AmTrust Financial Services, Inc.",
+ "55.76",
+ "$4.4B",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/afsi"
+ ],
+ [
+ "AGEN",
+ "Agenus Inc.",
+ "5.2",
+ "$325.96M",
+ "2000",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/agen"
+ ],
+ [
+ "AGII",
+ "Argo Group International Holdings, Ltd.",
+ "52.39",
+ "$1.35B",
+ "n/a",
+ "Finance",
+ "Specialty Insurers",
+ "http://www.nasdaq.com/symbol/agii"
+ ],
+ [
+ "AGIIL",
+ "Argo Group International Holdings, Ltd.",
+ "25.181",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Specialty Insurers",
+ "http://www.nasdaq.com/symbol/agiil"
+ ],
+ [
+ "AGIO",
+ "Agios Pharmaceuticals, Inc.",
+ "106.3",
+ "$3.93B",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/agio"
+ ],
+ [
+ "AGNC",
+ "American Capital Agency Corp.",
+ "21.94",
+ "$7.74B",
+ "2008",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/agnc"
+ ],
+ [
+ "AGNCB",
+ "American Capital Agency Corp.",
+ "25.1199",
+ "$8.86B",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/agncb"
+ ],
+ [
+ "AGNCP",
+ "American Capital Agency Corp.",
+ "26.6399",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/agncp"
+ ],
+ [
+ "AGND",
+ "WisdomTree Barclays U.S. Aggregate Bond Negative Duration Fund",
+ "45.173",
+ "$13.55M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/agnd"
+ ],
+ [
+ "AGRX",
+ "Agile Therapeutics, Inc.",
+ "9.47",
+ "$189.51M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/agrx"
+ ],
+ [
+ "AGTC",
+ "Applied Genetic Technologies Corporation",
+ "22.73",
+ "$373.72M",
+ "2014",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/agtc"
+ ],
+ [
+ "AGYS",
+ "Agilysys, Inc.",
+ "9.87",
+ "$225.26M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/agys"
+ ],
+ [
+ "AGZD",
+ "WisdomTree Barclays U.S. Aggregate Bond Zero Duration Fund",
+ "49.15",
+ "$58.98M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/agzd"
+ ],
+ [
+ "AHGP",
+ "Alliance Holdings GP, L.P.",
+ "52.57",
+ "$3.15B",
+ "2006",
+ "Energy",
+ "Coal Mining",
+ "http://www.nasdaq.com/symbol/ahgp"
+ ],
+ [
+ "AHPI",
+ "Allied Healthcare Products, Inc.",
+ "1.71",
+ "$13.73M",
+ "1992",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/ahpi"
+ ],
+ [
+ "AIMC",
+ "Altra Industrial Motion Corp.",
+ "26.26",
+ "$699.44M",
+ "2006",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/aimc"
+ ],
+ [
+ "AINV",
+ "Apollo Investment Corporation",
+ "7.81",
+ "$1.85B",
+ "2004",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ainv"
+ ],
+ [
+ "AIQ",
+ "Alliance HealthCare Services, Inc.",
+ "25.08",
+ "$269.22M",
+ "2001",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/aiq"
+ ],
+ [
+ "AIRM",
+ "Air Methods Corporation",
+ "45.6",
+ "$1.79B",
+ "n/a",
+ "Transportation",
+ "Transportation Services",
+ "http://www.nasdaq.com/symbol/airm"
+ ],
+ [
+ "AIRR",
+ "First Trust RBA American Industrial Renaissance ETF",
+ "18.1247",
+ "$76.12M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/airr"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_1.json b/packages/flutter/example/stocks/data/stock_data_1.json
new file mode 100644
index 0000000..7fd39e9
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_1.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "AIRT",
+ "Air T, Inc.",
+ "19.81",
+ "$46.95M",
+ "n/a",
+ "Transportation",
+ "Air Freight/Delivery Services",
+ "http://www.nasdaq.com/symbol/airt"
+ ],
+ [
+ "AIXG",
+ "Aixtron SE",
+ "8.13",
+ "$906.84M",
+ "n/a",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/aixg"
+ ],
+ [
+ "AKAM",
+ "Akamai Technologies, Inc.",
+ "71.62",
+ "$12.75B",
+ "1999",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/akam"
+ ],
+ [
+ "AKAO",
+ "Achaogen, Inc.",
+ "11.47",
+ "$203.68M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/akao"
+ ],
+ [
+ "AKBA",
+ "Akebia Therapeutics, Inc.",
+ "10.14",
+ "$206.26M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/akba"
+ ],
+ [
+ "AKER",
+ "Akers Biosciences Inc",
+ "3.7365",
+ "$18.51M",
+ "2014",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/aker"
+ ],
+ [
+ "AKRX",
+ "Akorn, Inc.",
+ "48.02",
+ "$5.18B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/akrx"
+ ],
+ [
+ "ALCO",
+ "Alico, Inc.",
+ "48.01",
+ "$353.87M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/alco"
+ ],
+ [
+ "ALDR",
+ "Alder BioPharmaceuticals, Inc.",
+ "27.41",
+ "$1.03B",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/aldr"
+ ],
+ [
+ "ALDX",
+ "Aldeyra Therapeutics, Inc.",
+ "10.5",
+ "$58.44M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/aldx"
+ ],
+ [
+ "ALGN",
+ "Align Technology, Inc.",
+ "56.81",
+ "$4.56B",
+ "2001",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/algn"
+ ],
+ [
+ "ALGT",
+ "Allegiant Travel Company",
+ "184.79",
+ "$3.23B",
+ "2006",
+ "Transportation",
+ "Air Freight/Delivery Services",
+ "http://www.nasdaq.com/symbol/algt"
+ ],
+ [
+ "ALIM",
+ "Alimera Sciences, Inc.",
+ "5.32",
+ "$235.66M",
+ "2010",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/alim"
+ ],
+ [
+ "ALKS",
+ "Alkermes plc",
+ "73.24",
+ "$10.71B",
+ "1991",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/alks"
+ ],
+ [
+ "ALLB",
+ "Alliance Bancorp, Inc. of Pennsylvania",
+ "16.93",
+ "$68.18M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/allb"
+ ],
+ [
+ "ALLT",
+ "Allot Communications Ltd.",
+ "9.3",
+ "$309.2M",
+ "2006",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/allt"
+ ],
+ [
+ "ALNY",
+ "Alnylam Pharmaceuticals, Inc.",
+ "102.39",
+ "$8.58B",
+ "2004",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/alny"
+ ],
+ [
+ "ALOG",
+ "Analogic Corporation",
+ "84.98",
+ "$1.05B",
+ "1972",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/alog"
+ ],
+ [
+ "ALOT",
+ "Astro-Med, Inc.",
+ "14.78",
+ "$107M",
+ "1983",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/alot"
+ ],
+ [
+ "ALQA",
+ "Alliqua BioMedical, Inc.",
+ "6",
+ "$97.04M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/alqa"
+ ],
+ [
+ "ALSK",
+ "Alaska Communications Systems Group, Inc.",
+ "1.71",
+ "$84.71M",
+ "1999",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/alsk"
+ ],
+ [
+ "ALTR",
+ "Altera Corporation",
+ "36.14",
+ "$10.87B",
+ "1988",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/altr"
+ ],
+ [
+ "ALXA",
+ "Alexza Pharmaceuticals, Inc.",
+ "2.18",
+ "$42.3M",
+ "2006",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/alxa"
+ ],
+ [
+ "ALXN",
+ "Alexion Pharmaceuticals, Inc.",
+ "186.02",
+ "$37.6B",
+ "1996",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/alxn"
+ ],
+ [
+ "AMAG",
+ "AMAG Pharmaceuticals, Inc.",
+ "43.04",
+ "$1.1B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/amag"
+ ],
+ [
+ "AMAT",
+ "Applied Materials, Inc.",
+ "25.13",
+ "$30.88B",
+ "1972",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/amat"
+ ],
+ [
+ "AMBA",
+ "Ambarella, Inc.",
+ "51.75",
+ "$1.57B",
+ "2012",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/amba"
+ ],
+ [
+ "AMBC",
+ "Ambac Financial Group, Inc.",
+ "25.42",
+ "$1.14B",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/ambc"
+ ],
+ [
+ "AMBCW",
+ "Ambac Financial Group, Inc.",
+ "13.71",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/ambcw"
+ ],
+ [
+ "AMCC",
+ "Applied Micro Circuits Corporation",
+ "4.84",
+ "$383.04M",
+ "1997",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/amcc"
+ ],
+ [
+ "AMCF",
+ "Andatee China Marine Fuel Services Corporation",
+ "1.51",
+ "$15.49M",
+ "2010",
+ "Energy",
+ "Oil Refining/Marketing",
+ "http://www.nasdaq.com/symbol/amcf"
+ ],
+ [
+ "AMCN",
+ "AirMedia Group Inc",
+ "2.19",
+ "$130.45M",
+ "2007",
+ "Technology",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/amcn"
+ ],
+ [
+ "AMCX",
+ "AMC Networks Inc.",
+ "69.34",
+ "$5B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/amcx"
+ ],
+ [
+ "AMD",
+ "Advanced Micro Devices, Inc.",
+ "3.06",
+ "$2.38B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/amd"
+ ],
+ [
+ "AMDA",
+ "Amedica Corporation",
+ "0.8",
+ "$11.04M",
+ "2014",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/amda"
+ ],
+ [
+ "AMED",
+ "Amedisys Inc",
+ "28.69",
+ "$957.68M",
+ "n/a",
+ "Health Care",
+ "Medical/Nursing Services",
+ "http://www.nasdaq.com/symbol/amed"
+ ],
+ [
+ "AMGN",
+ "Amgen Inc.",
+ "157.66",
+ "$119.64B",
+ "1983",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/amgn"
+ ],
+ [
+ "AMIC",
+ "American Independence Corp.",
+ "10.61",
+ "$85.72M",
+ "n/a",
+ "Finance",
+ "Accident &Health Insurance",
+ "http://www.nasdaq.com/symbol/amic"
+ ],
+ [
+ "AMKR",
+ "Amkor Technology, Inc.",
+ "9.16",
+ "$2.17B",
+ "1998",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/amkr"
+ ],
+ [
+ "AMNB",
+ "American National Bankshares, Inc.",
+ "22.1",
+ "$173.41M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/amnb"
+ ],
+ [
+ "AMOT",
+ "Allied Motion Technologies, Inc.",
+ "26.89",
+ "$248.06M",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/amot"
+ ],
+ [
+ "AMOV",
+ "America Movil, S.A.B. de C.V.",
+ "21.58",
+ "$74.86B",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/amov"
+ ],
+ [
+ "AMPH",
+ "Amphastar Pharmaceuticals, Inc.",
+ "12.85",
+ "$573.74M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/amph"
+ ],
+ [
+ "AMRB",
+ "American River Bankshares",
+ "9.72",
+ "$78.63M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/amrb"
+ ],
+ [
+ "AMRI",
+ "Albany Molecular Research, Inc.",
+ "16.27",
+ "$530.51M",
+ "1999",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/amri"
+ ],
+ [
+ "AMRK",
+ "A-Mark Precious Metals, Inc.",
+ "10.1399",
+ "$70.6M",
+ "n/a",
+ "Basic Industries",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/amrk"
+ ],
+ [
+ "AMRN",
+ "Amarin Corporation PLC",
+ "1.33",
+ "$232.23M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/amrn"
+ ],
+ [
+ "AMRS",
+ "Amyris, Inc.",
+ "2",
+ "$158.15M",
+ "2010",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/amrs"
+ ],
+ [
+ "AMSC",
+ "American Superconductor Corporation",
+ "0.77",
+ "$73.71M",
+ "1991",
+ "Consumer Durables",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/amsc"
+ ],
+ [
+ "AMSF",
+ "AMERISAFE, Inc.",
+ "42.94",
+ "$808.25M",
+ "2005",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/amsf"
+ ],
+ [
+ "AMSG",
+ "Amsurg Corp.",
+ "55.96",
+ "$2.69B",
+ "n/a",
+ "Health Care",
+ "Medical/Nursing Services",
+ "http://www.nasdaq.com/symbol/amsg"
+ ],
+ [
+ "AMSGP",
+ "Amsurg Corp.",
+ "116.19",
+ "$200.43M",
+ "n/a",
+ "Health Care",
+ "Medical/Nursing Services",
+ "http://www.nasdaq.com/symbol/amsgp"
+ ],
+ [
+ "AMSWA",
+ "American Software, Inc.",
+ "9.12",
+ "$257.55M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/amswa"
+ ],
+ [
+ "AMTX",
+ "Aemetis, Inc",
+ "4.42",
+ "$91.11M",
+ "n/a",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/amtx"
+ ],
+ [
+ "AMWD",
+ "American Woodmark Corporation",
+ "44.12",
+ "$698.38M",
+ "1986",
+ "Basic Industries",
+ "Forest Products",
+ "http://www.nasdaq.com/symbol/amwd"
+ ],
+ [
+ "AMZN",
+ "Amazon.com, Inc.",
+ "383.66",
+ "$178.17B",
+ "1997",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/amzn"
+ ],
+ [
+ "ANAC",
+ "Anacor Pharmaceuticals, Inc.",
+ "43.49",
+ "$1.87B",
+ "2010",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/anac"
+ ],
+ [
+ "ANAD",
+ "ANADIGICS, Inc.",
+ "1.24",
+ "$107.36M",
+ "1995",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/anad"
+ ],
+ [
+ "ANAT",
+ "American National Insurance Company",
+ "105.61",
+ "$2.84B",
+ "n/a",
+ "Finance",
+ "Life Insurance",
+ "http://www.nasdaq.com/symbol/anat"
+ ],
+ [
+ "ANCB",
+ "Anchor Bancorp",
+ "21.6101",
+ "$55.11M",
+ "2011",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/ancb"
+ ],
+ [
+ "ANCI",
+ "American Caresource Holdings Inc",
+ "2.89",
+ "$19.4M",
+ "n/a",
+ "Health Care",
+ "Hospital/Nursing Management",
+ "http://www.nasdaq.com/symbol/anci"
+ ],
+ [
+ "ANCX",
+ "Access National Corporation",
+ "17.98",
+ "$187.93M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/ancx"
+ ],
+ [
+ "ANDE",
+ "The Andersons, Inc.",
+ "44.84",
+ "$1.3B",
+ "n/a",
+ "Consumer Services",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/ande"
+ ],
+ [
+ "ANGI",
+ "Angie's List, Inc.",
+ "6.73",
+ "$393.82M",
+ "2011",
+ "Consumer Services",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/angi"
+ ],
+ [
+ "ANGO",
+ "AngioDynamics, Inc.",
+ "19.03",
+ "$681.68M",
+ "2004",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/ango"
+ ],
+ [
+ "ANIK",
+ "Anika Therapeutics Inc.",
+ "44.05",
+ "$638.9M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/anik"
+ ],
+ [
+ "ANIP",
+ "ANI Pharmaceuticals, Inc.",
+ "68.66",
+ "$777.88M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/anip"
+ ],
+ [
+ "ANSS",
+ "ANSYS, Inc.",
+ "87.25",
+ "$8.02B",
+ "1996",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/anss"
+ ],
+ [
+ "ANTH",
+ "Anthera Pharmaceuticals, Inc.",
+ "4.58",
+ "$105.06M",
+ "2010",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/anth"
+ ],
+ [
+ "ANY",
+ "Sphere 3D Corp",
+ "4.31",
+ "$113.68M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/any"
+ ],
+ [
+ "AOSL",
+ "Alpha and Omega Semiconductor Limited",
+ "8.79",
+ "$234.31M",
+ "2010",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/aosl"
+ ],
+ [
+ "APDN",
+ "Applied DNA Sciences Inc",
+ "3.73",
+ "$64.76M",
+ "n/a",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/apdn"
+ ],
+ [
+ "APDNW",
+ "Applied DNA Sciences Inc",
+ "1.44",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/apdnw"
+ ],
+ [
+ "APEI",
+ "American Public Education, Inc.",
+ "34.08",
+ "$588.38M",
+ "2007",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/apei"
+ ],
+ [
+ "APOG",
+ "Apogee Enterprises, Inc.",
+ "45.21",
+ "$1.31B",
+ "n/a",
+ "Capital Goods",
+ "Auto Parts:O.E.M.",
+ "http://www.nasdaq.com/symbol/apog"
+ ],
+ [
+ "APOL",
+ "Apollo Education Group, Inc.",
+ "26.755",
+ "$2.9B",
+ "1994",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/apol"
+ ],
+ [
+ "APPS",
+ "Digital Turbine, Inc.",
+ "3.32",
+ "$125.58M",
+ "n/a",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/apps"
+ ],
+ [
+ "APPY",
+ "Venaxis, Inc.",
+ "0.459",
+ "$14.22M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/appy"
+ ],
+ [
+ "APRI",
+ "Apricus Biosciences, Inc",
+ "1.94",
+ "$86M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/apri"
+ ],
+ [
+ "APTO",
+ "Aptose Biosciences, Inc.",
+ "4.6241",
+ "$54.1M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/apto"
+ ],
+ [
+ "APWC",
+ "Asia Pacific Wire & Cable Corporation Limited",
+ "2.5",
+ "$34.5M",
+ "n/a",
+ "Basic Industries",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/apwc"
+ ],
+ [
+ "AQXP",
+ "Aquinox Pharmaceuticals, Inc.",
+ "10.45",
+ "$111.76M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/aqxp"
+ ],
+ [
+ "ARAY",
+ "Accuray Incorporated",
+ "8.04",
+ "$631.05M",
+ "2007",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/aray"
+ ],
+ [
+ "ARCB",
+ "ArcBest Corporation",
+ "41.38",
+ "$1.08B",
+ "n/a",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/arcb"
+ ],
+ [
+ "ARCC",
+ "Ares Capital Corporation",
+ "16.92",
+ "$5.31B",
+ "2004",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/arcc"
+ ],
+ [
+ "ARCI",
+ "Appliance Recycling Centers of America, Inc.",
+ "2.82",
+ "$16.32M",
+ "n/a",
+ "Consumer Services",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/arci"
+ ],
+ [
+ "ARCP",
+ "American Realty Capital Properties, Inc.",
+ "9.44",
+ "$8.57B",
+ "2011",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/arcp"
+ ],
+ [
+ "ARCPP",
+ "American Realty Capital Properties, Inc.",
+ "23.24",
+ "$999.32M",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/arcpp"
+ ],
+ [
+ "ARCW",
+ "ARC Group Worldwide, Inc.",
+ "6.27",
+ "$94.55M",
+ "n/a",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/arcw"
+ ],
+ [
+ "ARDM",
+ "Aradigm Corporation",
+ "7.261",
+ "$106.93M",
+ "1996",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/ardm"
+ ],
+ [
+ "ARDX",
+ "Ardelyx, Inc.",
+ "17.18",
+ "$318.52M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ardx"
+ ],
+ [
+ "AREX",
+ "Approach Resources Inc.",
+ "7.2",
+ "$284.8M",
+ "2007",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/arex"
+ ],
+ [
+ "ARGS",
+ "Argos Therapeutics, Inc.",
+ "9.19",
+ "$180.64M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/args"
+ ],
+ [
+ "ARIA",
+ "ARIAD Pharmaceuticals, Inc.",
+ "8.06",
+ "$1.51B",
+ "1994",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/aria"
+ ],
+ [
+ "ARII",
+ "American Railcar Industries, Inc.",
+ "56.08",
+ "$1.2B",
+ "2006",
+ "Capital Goods",
+ "Railroads",
+ "http://www.nasdaq.com/symbol/arii"
+ ],
+ [
+ "ARIS",
+ "ARI Network Services, Inc.",
+ "3.61",
+ "$51.37M",
+ "1991",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/aris"
+ ],
+ [
+ "ARKR",
+ "Ark Restaurants Corp.",
+ "24.45",
+ "$82.76M",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/arkr"
+ ],
+ [
+ "ARLP",
+ "Alliance Resource Partners, L.P.",
+ "40.41",
+ "$2.99B",
+ "1999",
+ "Energy",
+ "Coal Mining",
+ "http://www.nasdaq.com/symbol/arlp"
+ ],
+ [
+ "ARMH",
+ "ARM Holdings plc",
+ "51.68",
+ "$24.33B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/armh"
+ ],
+ [
+ "ARNA",
+ "Arena Pharmaceuticals, Inc.",
+ "4.65",
+ "$1.02B",
+ "2000",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/arna"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_10.json b/packages/flutter/example/stocks/data/stock_data_10.json
new file mode 100644
index 0000000..9673d83
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_10.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "FGEN",
+ "FibroGen, Inc",
+ "30.16",
+ "$1.71B",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/fgen"
+ ],
+ [
+ "FHCO",
+ "Female Health Company (The)",
+ "3.71",
+ "$106.9M",
+ "n/a",
+ "Basic Industries",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/fhco"
+ ],
+ [
+ "FIBK",
+ "First Interstate BancSystem, Inc.",
+ "26.63",
+ "$583.97M",
+ "2010",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fibk"
+ ],
+ [
+ "FINL",
+ "The Finish Line, Inc.",
+ "24.36",
+ "$1.14B",
+ "1992",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/finl"
+ ],
+ [
+ "FISH",
+ "Marlin Midstream Partners, LP",
+ "23.67",
+ "$419.05M",
+ "1992",
+ "Public Utilities",
+ "Natural Gas Distribution",
+ "http://www.nasdaq.com/symbol/fish"
+ ],
+ [
+ "FISI",
+ "Financial Institutions, Inc.",
+ "22.75",
+ "$320.73M",
+ "1999",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fisi"
+ ],
+ [
+ "FISV",
+ "Fiserv, Inc.",
+ "79.05",
+ "$19.29B",
+ "1986",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/fisv"
+ ],
+ [
+ "FITB",
+ "Fifth Third Bancorp",
+ "19.39",
+ "$15.98B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fitb"
+ ],
+ [
+ "FITBI",
+ "Fifth Third Bancorp",
+ "27.42",
+ "$493.56M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fitbi"
+ ],
+ [
+ "FIVE",
+ "Five Below, Inc.",
+ "32.22",
+ "$1.75B",
+ "2012",
+ "Consumer Services",
+ "Department/Specialty Retail Stores",
+ "http://www.nasdaq.com/symbol/five"
+ ],
+ [
+ "FIVN",
+ "Five9, Inc.",
+ "3.8",
+ "$185.74M",
+ "2014",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/fivn"
+ ],
+ [
+ "FIZZ",
+ "National Beverage Corp.",
+ "22.5",
+ "$1.04B",
+ "n/a",
+ "Consumer Non-Durables",
+ "Beverages (Production/Distribution)",
+ "http://www.nasdaq.com/symbol/fizz"
+ ],
+ [
+ "FLAT",
+ "iPath US Treasury Flattener ETN",
+ "60.948",
+ "$5.06M",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/flat"
+ ],
+ [
+ "FLDM",
+ "Fluidigm Corporation",
+ "38.97",
+ "$1.1B",
+ "2011",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/fldm"
+ ],
+ [
+ "FLEX",
+ "Flextronics International Ltd.",
+ "12.23",
+ "$7B",
+ "1994",
+ "Technology",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/flex"
+ ],
+ [
+ "FLIC",
+ "The First of Long Island Corporation",
+ "24.9",
+ "$345.13M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/flic"
+ ],
+ [
+ "FLIR",
+ "FLIR Systems, Inc.",
+ "32.12",
+ "$4.53B",
+ "1993",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/flir"
+ ],
+ [
+ "FLKS",
+ "Flex Pharma, Inc.",
+ "14.71",
+ "$261.92M",
+ "2015",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/flks"
+ ],
+ [
+ "FLL",
+ "Full House Resorts, Inc.",
+ "1.52",
+ "$28.69M",
+ "n/a",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/fll"
+ ],
+ [
+ "FLML",
+ "Flamel Technologies S.A.",
+ "14.62",
+ "$569.25M",
+ "1996",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/flml"
+ ],
+ [
+ "FLWS",
+ "1-800 FLOWERS.COM, Inc.",
+ "10.32",
+ "$667.78M",
+ "1999",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/flws"
+ ],
+ [
+ "FLXN",
+ "Flexion Therapeutics, Inc.",
+ "22.5",
+ "$482.02M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/flxn"
+ ],
+ [
+ "FLXS",
+ "Flexsteel Industries, Inc.",
+ "31.02",
+ "$230.67M",
+ "n/a",
+ "Consumer Durables",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/flxs"
+ ],
+ [
+ "FMB",
+ "First Trust Managed Municipal ETF",
+ "51.77",
+ "$20.71M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/fmb"
+ ],
+ [
+ "FMBH",
+ "First Mid-Illinois Bancshares, Inc.",
+ "19.96",
+ "$117.26M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fmbh"
+ ],
+ [
+ "FMBI",
+ "First Midwest Bancorp, Inc.",
+ "16.82",
+ "$1.27B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fmbi"
+ ],
+ [
+ "FMER",
+ "FirstMerit Corporation",
+ "18.29",
+ "$3.03B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fmer"
+ ],
+ [
+ "FMI",
+ "Foundation Medicine, Inc.",
+ "48.48",
+ "$1.38B",
+ "2013",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/fmi"
+ ],
+ [
+ "FMNB",
+ "Farmers National Banc Corp.",
+ "7.98",
+ "$146.9M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fmnb"
+ ],
+ [
+ "FNBC",
+ "First NBC Bank Holding Company",
+ "32.5",
+ "$603.69M",
+ "2013",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fnbc"
+ ],
+ [
+ "FNFG",
+ "First Niagara Financial Group Inc.",
+ "8.85",
+ "$3.14B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fnfg"
+ ],
+ [
+ "FNGN",
+ "Financial Engines, Inc.",
+ "38.32",
+ "$1.99B",
+ "2010",
+ "Finance",
+ "Investment Managers",
+ "http://www.nasdaq.com/symbol/fngn"
+ ],
+ [
+ "FNHC",
+ "Federated National Holding Company",
+ "28.42",
+ "$398.13M",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/fnhc"
+ ],
+ [
+ "FNJN",
+ "Finjan Holdings, Inc.",
+ "2.75",
+ "$61.72M",
+ "n/a",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/fnjn"
+ ],
+ [
+ "FNLC",
+ "First Bancorp, Inc (ME)",
+ "16.92",
+ "$181.41M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fnlc"
+ ],
+ [
+ "FNRG",
+ "ForceField Energy Inc.",
+ "7.44",
+ "$134.72M",
+ "n/a",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/fnrg"
+ ],
+ [
+ "FNSR",
+ "Finisar Corporation",
+ "21.45",
+ "$2.22B",
+ "1999",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/fnsr"
+ ],
+ [
+ "FNTCU",
+ "FinTech Acquisition Corp.",
+ "10",
+ "n/a",
+ "2015",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/fntcu"
+ ],
+ [
+ "FNWB",
+ "First Northwest Bancorp",
+ "12.52",
+ "$164.02M",
+ "2015",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/fnwb"
+ ],
+ [
+ "FOLD",
+ "Amicus Therapeutics, Inc.",
+ "8.7",
+ "$828.67M",
+ "2007",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/fold"
+ ],
+ [
+ "FOMX",
+ "Foamix Pharmaceuticals Ltd.",
+ "9.18",
+ "$197.15M",
+ "2014",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/fomx"
+ ],
+ [
+ "FONE",
+ "First Trust NASDAQ CEA Smartphone Index Fund",
+ "40.287",
+ "$12.09M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/fone"
+ ],
+ [
+ "FONR",
+ "Fonar Corporation",
+ "12.68",
+ "$81.58M",
+ "1981",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/fonr"
+ ],
+ [
+ "FORD",
+ "Forward Industries, Inc.",
+ "0.93",
+ "$7.79M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Plastic Products",
+ "http://www.nasdaq.com/symbol/ford"
+ ],
+ [
+ "FORM",
+ "FormFactor, Inc.",
+ "9.14",
+ "$515.6M",
+ "2003",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/form"
+ ],
+ [
+ "FORR",
+ "Forrester Research, Inc.",
+ "38.3",
+ "$697.25M",
+ "1996",
+ "Consumer Services",
+ "Diversified Commercial Services",
+ "http://www.nasdaq.com/symbol/forr"
+ ],
+ [
+ "FORTY",
+ "Formula Systems (1985) Ltd.",
+ "23.7",
+ "$348.84M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/forty"
+ ],
+ [
+ "FOSL",
+ "Fossil Group, Inc.",
+ "85.14",
+ "$4.35B",
+ "1993",
+ "Consumer Non-Durables",
+ "Consumer Specialties",
+ "http://www.nasdaq.com/symbol/fosl"
+ ],
+ [
+ "FOX",
+ "Twenty-First Century Fox, Inc.",
+ "34.275",
+ "$72.87B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/fox"
+ ],
+ [
+ "FOXA",
+ "Twenty-First Century Fox, Inc.",
+ "35.3",
+ "$46.86B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/foxa"
+ ],
+ [
+ "FOXF",
+ "Fox Factory Holding Corp.",
+ "15.79",
+ "$585.14M",
+ "2013",
+ "Consumer Non-Durables",
+ "Motor Vehicles",
+ "http://www.nasdaq.com/symbol/foxf"
+ ],
+ [
+ "FPRX",
+ "Five Prime Therapeutics, Inc.",
+ "26.27",
+ "$668.91M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/fprx"
+ ],
+ [
+ "FPXI",
+ "First Trust International IPO ETF",
+ "28.96",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/fpxi"
+ ],
+ [
+ "FRAN",
+ "Francesca's Holdings Corporation",
+ "15.12",
+ "$639.54M",
+ "2011",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/fran"
+ ],
+ [
+ "FRBA",
+ "First Bank",
+ "6",
+ "$47.32M",
+ "2013",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/frba"
+ ],
+ [
+ "FRBK",
+ "Republic First Bancorp, Inc.",
+ "3.45",
+ "$130.46M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/frbk"
+ ],
+ [
+ "FRED",
+ "Fred's, Inc.",
+ "19.02",
+ "$702.13M",
+ "1992",
+ "Consumer Services",
+ "Department/Specialty Retail Stores",
+ "http://www.nasdaq.com/symbol/fred"
+ ],
+ [
+ "FREE",
+ "FreeSeas Inc.",
+ "0.09",
+ "$10.39M",
+ "n/a",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/free"
+ ],
+ [
+ "FRGI",
+ "Fiesta Restaurant Group, Inc.",
+ "64.96",
+ "$1.74B",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/frgi"
+ ],
+ [
+ "FRME",
+ "First Merchants Corporation",
+ "22.94",
+ "$827.55M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/frme"
+ ],
+ [
+ "FRP",
+ "FairPoint Communications, Inc.",
+ "17.65",
+ "$471.41M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/frp"
+ ],
+ [
+ "FRPH",
+ "FRP Holdings, Inc.",
+ "30.02",
+ "$291.75M",
+ "n/a",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/frph"
+ ],
+ [
+ "FRPT",
+ "Freshpet, Inc.",
+ "16.15",
+ "$540.5M",
+ "2014",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/frpt"
+ ],
+ [
+ "FRSH",
+ "Papa Murphy's Holdings, Inc.",
+ "13.63",
+ "$230.91M",
+ "2014",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/frsh"
+ ],
+ [
+ "FSAM",
+ "Fifth Street Asset Management Inc.",
+ "12.57",
+ "$614.13M",
+ "2014",
+ "Finance",
+ "Investment Managers",
+ "http://www.nasdaq.com/symbol/fsam"
+ ],
+ [
+ "FSBK",
+ "First South Bancorp Inc",
+ "8.11",
+ "$77.84M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fsbk"
+ ],
+ [
+ "FSBW",
+ "FS Bancorp, Inc.",
+ "19.4499",
+ "$62.93M",
+ "2012",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/fsbw"
+ ],
+ [
+ "FSC",
+ "Fifth Street Finance Corp.",
+ "7.21",
+ "$1.11B",
+ "2008",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/fsc"
+ ],
+ [
+ "FSCFL",
+ "Fifth Street Finance Corp.",
+ "24.0592",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/fscfl"
+ ],
+ [
+ "FSFG",
+ "First Savings Financial Group, Inc.",
+ "26.8899",
+ "$58.83M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/fsfg"
+ ],
+ [
+ "FSFR",
+ "Fifth Street Senior Floating Rate Corp.",
+ "10.92",
+ "$321.78M",
+ "2013",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/fsfr"
+ ],
+ [
+ "FSGI",
+ "First Security Group, Inc.",
+ "2.24",
+ "$149.69M",
+ "2005",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fsgi"
+ ],
+ [
+ "FSLR",
+ "First Solar, Inc.",
+ "49.02",
+ "$4.91B",
+ "2006",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/fslr"
+ ],
+ [
+ "FSNN",
+ "Fusion Telecommunications International, Inc.",
+ "3.611",
+ "$23.45M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/fsnn"
+ ],
+ [
+ "FSRV",
+ "FirstService Corporation",
+ "60.5",
+ "$2.09B",
+ "n/a",
+ "Finance",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/fsrv"
+ ],
+ [
+ "FSTR",
+ "L.B. Foster Company",
+ "49.23",
+ "$509.6M",
+ "n/a",
+ "Basic Industries",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/fstr"
+ ],
+ [
+ "FSYS",
+ "Fuel Systems Solutions, Inc.",
+ "10.98",
+ "$220.76M",
+ "n/a",
+ "Capital Goods",
+ "Auto Parts:O.E.M.",
+ "http://www.nasdaq.com/symbol/fsys"
+ ],
+ [
+ "FTCS",
+ "First Trust Capital Strength ETF",
+ "39.2693",
+ "$86.39M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ftcs"
+ ],
+ [
+ "FTD",
+ "FTD Companies, Inc.",
+ "34.27",
+ "$650.72M",
+ "n/a",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/ftd"
+ ],
+ [
+ "FTEK",
+ "Fuel Tech, Inc.",
+ "3.2",
+ "$73.07M",
+ "n/a",
+ "Capital Goods",
+ "Pollution Control Equipment",
+ "http://www.nasdaq.com/symbol/ftek"
+ ],
+ [
+ "FTGC",
+ "First Trust Global Tactical Commodity Strategy Fund",
+ "25.1",
+ "$229.75M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ftgc"
+ ],
+ [
+ "FTHI",
+ "First Trust High Income ETF",
+ "20.89",
+ "$3.13M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/fthi"
+ ],
+ [
+ "FTLB",
+ "First Trust Low Beta Income ETF",
+ "20.796",
+ "$2.08M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ftlb"
+ ],
+ [
+ "FTNT",
+ "Fortinet, Inc.",
+ "33.84",
+ "$5.58B",
+ "2009",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/ftnt"
+ ],
+ [
+ "FTR",
+ "Frontier Communications Corporation",
+ "8.3",
+ "$8.32B",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/ftr"
+ ],
+ [
+ "FTSL",
+ "First Trust Senior Loan ETF",
+ "49.1365",
+ "$201.46M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ftsl"
+ ],
+ [
+ "FTSM",
+ "First Trust Enhanced Short Maturity ETF",
+ "59.97",
+ "$3M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ftsm"
+ ],
+ [
+ "FUEL",
+ "Rocket Fuel Inc.",
+ "10.82",
+ "$446.81M",
+ "2013",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/fuel"
+ ],
+ [
+ "FULL",
+ "Full Circle Capital Corporation",
+ "4.66",
+ "$55.68M",
+ "2010",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/full"
+ ],
+ [
+ "FULLL",
+ "Full Circle Capital Corporation",
+ "25.8499",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/fulll"
+ ],
+ [
+ "FULT",
+ "Fulton Financial Corporation",
+ "12.17",
+ "$2.25B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fult"
+ ],
+ [
+ "FUNC",
+ "First United Corporation",
+ "9.26",
+ "$57.67M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/func"
+ ],
+ [
+ "FUND",
+ "Royce Focus Trust, Inc.",
+ "7.44",
+ "$166.34M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/fund"
+ ],
+ [
+ "FV",
+ "First Trust Dorsey Wright Focus",
+ "23.6",
+ "$1.98B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/fv"
+ ],
+ [
+ "FWM",
+ "Fairway Group Holdings Corp.",
+ "5.63",
+ "$245.4M",
+ "2013",
+ "Consumer Services",
+ "Food Chains",
+ "http://www.nasdaq.com/symbol/fwm"
+ ],
+ [
+ "FWP",
+ "Forward Pharma A/S",
+ "23.59",
+ "$1.08B",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/fwp"
+ ],
+ [
+ "FWRD",
+ "Forward Air Corporation",
+ "53.76",
+ "$1.64B",
+ "n/a",
+ "Transportation",
+ "Oil Refining/Marketing",
+ "http://www.nasdaq.com/symbol/fwrd"
+ ],
+ [
+ "FXCB",
+ "Fox Chase Bancorp, Inc.",
+ "16.28",
+ "$195.55M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/fxcb"
+ ],
+ [
+ "FXEN",
+ "FX Energy, Inc.",
+ "2.26",
+ "$122.21M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/fxen"
+ ],
+ [
+ "FXENP",
+ "FX Energy, Inc.",
+ "20",
+ "$16M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/fxenp"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_11.json b/packages/flutter/example/stocks/data/stock_data_11.json
new file mode 100644
index 0000000..4df9797
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_11.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "GABC",
+ "German American Bancorp, Inc.",
+ "29.18",
+ "$385.48M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/gabc"
+ ],
+ [
+ "GAI",
+ "Global-Tech Advanced Innovations Inc.",
+ "3.9",
+ "$11.87M",
+ "n/a",
+ "Consumer Durables",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/gai"
+ ],
+ [
+ "GAIA",
+ "Gaiam, Inc.",
+ "6.64",
+ "$162.45M",
+ "1999",
+ "Consumer Services",
+ "Movies/Entertainment",
+ "http://www.nasdaq.com/symbol/gaia"
+ ],
+ [
+ "GAIN",
+ "Gladstone Investment Corporation",
+ "7.8",
+ "$206.51M",
+ "2005",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/gain"
+ ],
+ [
+ "GAINO",
+ "Gladstone Investment Corporation",
+ "25.3799",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/gaino"
+ ],
+ [
+ "GAINP",
+ "Gladstone Investment Corporation",
+ "25.8",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/gainp"
+ ],
+ [
+ "GALE",
+ "Galena Biopharma, Inc.",
+ "1.84",
+ "$223.48M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/gale"
+ ],
+ [
+ "GALT",
+ "Galectin Therapeutics Inc.",
+ "4.04",
+ "$89.38M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/galt"
+ ],
+ [
+ "GALTU",
+ "Galectin Therapeutics Inc.",
+ "7.7",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/galtu"
+ ],
+ [
+ "GALTW",
+ "Galectin Therapeutics Inc.",
+ "1.9732",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/galtw"
+ ],
+ [
+ "GAME",
+ "Shanda Games Limited",
+ "5.58",
+ "$1.5B",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/game"
+ ],
+ [
+ "GARS",
+ "Garrison Capital Inc.",
+ "14.83",
+ "$248.53M",
+ "2013",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/gars"
+ ],
+ [
+ "GASS",
+ "StealthGas, Inc.",
+ "6.14",
+ "$245.61M",
+ "2005",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/gass"
+ ],
+ [
+ "GBCI",
+ "Glacier Bancorp, Inc.",
+ "24.79",
+ "$1.86B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/gbci"
+ ],
+ [
+ "GBDC",
+ "Golub Capital BDC, Inc.",
+ "17.58",
+ "$829.28M",
+ "2010",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/gbdc"
+ ],
+ [
+ "GBIM",
+ "GlobeImmune, Inc.",
+ "7.61",
+ "$43.75M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/gbim"
+ ],
+ [
+ "GBLI",
+ "Global Indemnity plc",
+ "26.71",
+ "$676.28M",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/gbli"
+ ],
+ [
+ "GBNK",
+ "Guaranty Bancorp",
+ "15.1",
+ "$328.38M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/gbnk"
+ ],
+ [
+ "GBSN",
+ "Great Basin Scientific, Inc.",
+ "1.8",
+ "$9.16M",
+ "2014",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/gbsn"
+ ],
+ [
+ "GCBC",
+ "Greene County Bancorp, Inc.",
+ "27.9748",
+ "$118.12M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/gcbc"
+ ],
+ [
+ "GCVRZ",
+ "Sanofi",
+ "0.62",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/gcvrz"
+ ],
+ [
+ "GDEF",
+ "Global Defense & National Security Systems, Inc.",
+ "10.3",
+ "$99.13M",
+ "2013",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/gdef"
+ ],
+ [
+ "GENC",
+ "Gencor Industries Inc.",
+ "9.66",
+ "$91.96M",
+ "n/a",
+ "Capital Goods",
+ "Construction/Ag Equipment/Trucks",
+ "http://www.nasdaq.com/symbol/genc"
+ ],
+ [
+ "GENE",
+ "Genetic Technologies Ltd",
+ "6.46",
+ "$26.44M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/gene"
+ ],
+ [
+ "GEOS",
+ "Geospace Technologies Corporation",
+ "18.31",
+ "$240.71M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/geos"
+ ],
+ [
+ "GERN",
+ "Geron Corporation",
+ "3.16",
+ "$496.79M",
+ "1996",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/gern"
+ ],
+ [
+ "GEVA",
+ "Synageva BioPharma Corp.",
+ "102.45",
+ "$3.77B",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/geva"
+ ],
+ [
+ "GEVO",
+ "Gevo, Inc.",
+ "0.27",
+ "$26.9M",
+ "2011",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/gevo"
+ ],
+ [
+ "GFED",
+ "Guaranty Federal Bancshares, Inc.",
+ "14.53",
+ "$62.48M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/gfed"
+ ],
+ [
+ "GFN",
+ "General Finance Corporation",
+ "8.9",
+ "$230.06M",
+ "n/a",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/gfn"
+ ],
+ [
+ "GFNCP",
+ "General Finance Corporation",
+ "110",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/gfncp"
+ ],
+ [
+ "GFNSL",
+ "General Finance Corporation",
+ "25.85",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/gfnsl"
+ ],
+ [
+ "GGAC",
+ "Garnero Group Acquisition Company",
+ "9.52",
+ "$177.1M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/ggac"
+ ],
+ [
+ "GGACR",
+ "Garnero Group Acquisition Company",
+ "0.16",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/ggacr"
+ ],
+ [
+ "GGACU",
+ "Garnero Group Acquisition Company",
+ "9.9",
+ "$129.33M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/ggacu"
+ ],
+ [
+ "GGACW",
+ "Garnero Group Acquisition Company",
+ "0.11",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/ggacw"
+ ],
+ [
+ "GGAL",
+ "Grupo Financiero Galicia S.A.",
+ "20.505",
+ "$2.67B",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/ggal"
+ ],
+ [
+ "GHDX",
+ "Genomic Health, Inc.",
+ "31",
+ "$983.37M",
+ "2005",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/ghdx"
+ ],
+ [
+ "GIFI",
+ "Gulf Island Fabrication, Inc.",
+ "16.86",
+ "$244.67M",
+ "1997",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/gifi"
+ ],
+ [
+ "GIGA",
+ "Giga-tronics Incorporated",
+ "1.76",
+ "$9.58M",
+ "1983",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/giga"
+ ],
+ [
+ "GIGM",
+ "GigaMedia Limited",
+ "0.772",
+ "$39.25M",
+ "n/a",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/gigm"
+ ],
+ [
+ "GIII",
+ "G-III Apparel Group, LTD.",
+ "105.53",
+ "$2.37B",
+ "1989",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/giii"
+ ],
+ [
+ "GILD",
+ "Gilead Sciences, Inc.",
+ "102.61",
+ "$154.8B",
+ "1992",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/gild"
+ ],
+ [
+ "GILT",
+ "Gilat Satellite Networks Ltd.",
+ "4.83",
+ "$205.84M",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/gilt"
+ ],
+ [
+ "GK",
+ "G&K Services, Inc.",
+ "72.46",
+ "$1.44B",
+ "n/a",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/gk"
+ ],
+ [
+ "GKNT",
+ "Geeknet, Inc.",
+ "7.87",
+ "$52.88M",
+ "n/a",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/gknt"
+ ],
+ [
+ "GLAD",
+ "Gladstone Capital Corporation",
+ "8.41",
+ "$176.61M",
+ "2001",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/glad"
+ ],
+ [
+ "GLADO",
+ "Gladstone Capital Corporation",
+ "25.3352",
+ "$55.74M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/glado"
+ ],
+ [
+ "GLBS",
+ "Globus Maritime Limited",
+ "1.647",
+ "$16.86M",
+ "n/a",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/glbs"
+ ],
+ [
+ "GLBZ",
+ "Glen Burnie Bancorp",
+ "12.23",
+ "$33.77M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/glbz"
+ ],
+ [
+ "GLDC",
+ "Golden Enterprises, Inc.",
+ "3.97",
+ "$46.58M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/gldc"
+ ],
+ [
+ "GLDD",
+ "Great Lakes Dredge & Dock Corporation",
+ "7.42",
+ "$446.21M",
+ "n/a",
+ "Basic Industries",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/gldd"
+ ],
+ [
+ "GLDI",
+ "Credit Suisse AG",
+ "12",
+ "$162.3M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/gldi"
+ ],
+ [
+ "GLMD",
+ "Galmed Pharmaceuticals Ltd.",
+ "8.04",
+ "$89.25M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/glmd"
+ ],
+ [
+ "GLNG",
+ "Golar LNG Limited",
+ "31.32",
+ "$2.92B",
+ "n/a",
+ "Consumer Services",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/glng"
+ ],
+ [
+ "GLPI",
+ "Gaming and Leisure Properties, Inc.",
+ "33.79",
+ "$3.8B",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/glpi"
+ ],
+ [
+ "GLRE",
+ "Greenlight Reinsurance, Ltd.",
+ "31.95",
+ "$1.2B",
+ "2007",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/glre"
+ ],
+ [
+ "GLRI",
+ "Glori Energy Inc",
+ "3.175",
+ "$100.01M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/glri"
+ ],
+ [
+ "GLUU",
+ "Glu Mobile Inc.",
+ "5.11",
+ "$546.51M",
+ "2007",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/gluu"
+ ],
+ [
+ "GLYC",
+ "GlycoMimetics, Inc.",
+ "8.12",
+ "$153.43M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/glyc"
+ ],
+ [
+ "GMAN",
+ "Gordmans Stores, Inc.",
+ "3.95",
+ "$77.33M",
+ "2010",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/gman"
+ ],
+ [
+ "GMCR",
+ "Keurig Green Mountain, Inc.",
+ "122.87",
+ "$19.87B",
+ "1993",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/gmcr"
+ ],
+ [
+ "GMLP",
+ "Golar LNG Partners LP",
+ "27.76",
+ "$1.71B",
+ "2011",
+ "Consumer Services",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/gmlp"
+ ],
+ [
+ "GNBC",
+ "Green Bancorp, Inc.",
+ "11.35",
+ "$297.04M",
+ "2014",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/gnbc"
+ ],
+ [
+ "GNCA",
+ "Genocea Biosciences, Inc.",
+ "9",
+ "$158.49M",
+ "2014",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/gnca"
+ ],
+ [
+ "GNCMA",
+ "General Communication, Inc.",
+ "14.43",
+ "$594.69M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/gncma"
+ ],
+ [
+ "GNMA",
+ "iShares GNMA Bond ETF",
+ "50.2932",
+ "$40.23M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/gnma"
+ ],
+ [
+ "GNMK",
+ "GenMark Diagnostics, Inc.",
+ "13.22",
+ "$551.73M",
+ "2010",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/gnmk"
+ ],
+ [
+ "GNTX",
+ "Gentex Corporation",
+ "17.875",
+ "$5.23B",
+ "n/a",
+ "Capital Goods",
+ "Auto Parts:O.E.M.",
+ "http://www.nasdaq.com/symbol/gntx"
+ ],
+ [
+ "GNVC",
+ "GenVec, Inc.",
+ "3.37",
+ "$58.2M",
+ "2000",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/gnvc"
+ ],
+ [
+ "GOGO",
+ "Gogo Inc.",
+ "16.22",
+ "$1.38B",
+ "2013",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/gogo"
+ ],
+ [
+ "GOLD",
+ "Randgold Resources Limited",
+ "76.11",
+ "$7.06B",
+ "n/a",
+ "Basic Industries",
+ "Precious Metals",
+ "http://www.nasdaq.com/symbol/gold"
+ ],
+ [
+ "GOMO",
+ "Sungy Mobile Limited",
+ "4.99",
+ "$167.08M",
+ "2013",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/gomo"
+ ],
+ [
+ "GOOD",
+ "Gladstone Commercial Corporation",
+ "17.6",
+ "$372.57M",
+ "2003",
+ "Consumer Services",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/good"
+ ],
+ [
+ "GOODN",
+ "Gladstone Commercial Corporation",
+ "25.6101",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/goodn"
+ ],
+ [
+ "GOODO",
+ "Gladstone Commercial Corporation",
+ "25.4301",
+ "$29.24M",
+ "n/a",
+ "Consumer Services",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/goodo"
+ ],
+ [
+ "GOODP",
+ "Gladstone Commercial Corporation",
+ "25.6",
+ "$25.6M",
+ "n/a",
+ "Consumer Services",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/goodp"
+ ],
+ [
+ "GOOG",
+ "Google Inc.",
+ "538.95",
+ "$366.82B",
+ "2004",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/goog"
+ ],
+ [
+ "GOOGL",
+ "Google Inc.",
+ "541.8",
+ "$368.76B",
+ "n/a",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/googl"
+ ],
+ [
+ "GPIC",
+ "Gaming Partners International Corporation",
+ "8.265",
+ "$65.43M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Recreational Products/Toys",
+ "http://www.nasdaq.com/symbol/gpic"
+ ],
+ [
+ "GPOR",
+ "Gulfport Energy Corporation",
+ "43.01",
+ "$3.68B",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/gpor"
+ ],
+ [
+ "GPRE",
+ "Green Plains, Inc.",
+ "25.01",
+ "$940.6M",
+ "n/a",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/gpre"
+ ],
+ [
+ "GPRO",
+ "GoPro, Inc.",
+ "45.07",
+ "$5.67B",
+ "2014",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/gpro"
+ ],
+ [
+ "GRBK",
+ "Green Brick Partners, Inc.",
+ "8.2",
+ "$51.15M",
+ "n/a",
+ "Capital Goods",
+ "Homebuilding",
+ "http://www.nasdaq.com/symbol/grbk"
+ ],
+ [
+ "GRFS",
+ "Grifols, S.A.",
+ "35.2",
+ "$12.1B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/grfs"
+ ],
+ [
+ "GRID",
+ "First Trust NASDAQ Clean Edge Smart Grid Infrastructure Index ",
+ "35.9316",
+ "$12.58M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/grid"
+ ],
+ [
+ "GRIF",
+ "Griffin Land & Nurseries, Inc.",
+ "31.38",
+ "$161.59M",
+ "n/a",
+ "Finance",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/grif"
+ ],
+ [
+ "GRMN",
+ "Garmin Ltd.",
+ "49.42",
+ "$9.48B",
+ "2000",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/grmn"
+ ],
+ [
+ "GROW",
+ "U.S. Global Investors, Inc.",
+ "3.345",
+ "$51.46M",
+ "n/a",
+ "Finance",
+ "Investment Managers",
+ "http://www.nasdaq.com/symbol/grow"
+ ],
+ [
+ "GRPN",
+ "Groupon, Inc.",
+ "8.15",
+ "$5.5B",
+ "2011",
+ "Technology",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/grpn"
+ ],
+ [
+ "GRVY",
+ "GRAVITY Co., Ltd.",
+ "0.519",
+ "$14.43M",
+ "2005",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/grvy"
+ ],
+ [
+ "GSBC",
+ "Great Southern Bancorp, Inc.",
+ "36.93",
+ "$506.96M",
+ "1989",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/gsbc"
+ ],
+ [
+ "GSIG",
+ "GSI Group, Inc.",
+ "13.62",
+ "$465.96M",
+ "n/a",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/gsig"
+ ],
+ [
+ "GSIT",
+ "GSI Technology, Inc.",
+ "5.7275",
+ "$133.95M",
+ "2007",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/gsit"
+ ],
+ [
+ "GSM",
+ "Globe Specialty Metals Inc.",
+ "15.37",
+ "$1.13B",
+ "2009",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/gsm"
+ ],
+ [
+ "GSOL",
+ "Global Sources Ltd.",
+ "5.56",
+ "$165.79M",
+ "n/a",
+ "Consumer Services",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/gsol"
+ ],
+ [
+ "GSVC",
+ "GSV Capital Corp",
+ "9.97",
+ "$192.62M",
+ "2011",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/gsvc"
+ ],
+ [
+ "GT",
+ "The Goodyear Tire & Rubber Company",
+ "27.69",
+ "$7.46B",
+ "n/a",
+ "Consumer Durables",
+ "Automotive Aftermarket",
+ "http://www.nasdaq.com/symbol/gt"
+ ],
+ [
+ "GTIM",
+ "Good Times Restaurants Inc.",
+ "8.29",
+ "$78.33M",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/gtim"
+ ],
+ [
+ "GTLS",
+ "Chart Industries, Inc.",
+ "31.07",
+ "$947.05M",
+ "2006",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/gtls"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_12.json b/packages/flutter/example/stocks/data/stock_data_12.json
new file mode 100644
index 0000000..51fd8da
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_12.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "GTWN",
+ "Georgetown Bancorp, Inc.",
+ "17.5501",
+ "$32.08M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/gtwn"
+ ],
+ [
+ "GTXI",
+ "GTx, Inc.",
+ "0.7",
+ "$98.23M",
+ "2004",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/gtxi"
+ ],
+ [
+ "GUID",
+ "Guidance Software, Inc.",
+ "5.99",
+ "$176.55M",
+ "2006",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/guid"
+ ],
+ [
+ "GULF",
+ "WisdomTree Middle East Dividend Fund",
+ "21.14",
+ "$50.74M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/gulf"
+ ],
+ [
+ "GULTU",
+ "Gulf Coast Ultra Deep Royalty Trust",
+ "1",
+ "$230.17M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/gultu"
+ ],
+ [
+ "GURE",
+ "Gulf Resources, Inc.",
+ "1.58",
+ "$61.19M",
+ "n/a",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/gure"
+ ],
+ [
+ "GWGH",
+ "GWG Holdings, Inc",
+ "8.405",
+ "$49.34M",
+ "2014",
+ "Finance",
+ "Life Insurance",
+ "http://www.nasdaq.com/symbol/gwgh"
+ ],
+ [
+ "GWPH",
+ "GW Pharmaceuticals Plc",
+ "84.89",
+ "$1.67B",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/gwph"
+ ],
+ [
+ "GYRO",
+ "Gyrodyne Company of America, Inc.",
+ "3.944",
+ "$5.85M",
+ "n/a",
+ "Consumer Services",
+ "Building operators",
+ "http://www.nasdaq.com/symbol/gyro"
+ ],
+ [
+ "HA",
+ "Hawaiian Holdings, Inc.",
+ "18.745",
+ "$1.02B",
+ "n/a",
+ "Transportation",
+ "Air Freight/Delivery Services",
+ "http://www.nasdaq.com/symbol/ha"
+ ],
+ [
+ "HABT",
+ "The Habit Restaurants, Inc.",
+ "32.26",
+ "$814.65M",
+ "2014",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/habt"
+ ],
+ [
+ "HAFC",
+ "Hanmi Financial Corporation",
+ "20.05",
+ "$639.68M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/hafc"
+ ],
+ [
+ "HAIN",
+ "The Hain Celestial Group, Inc.",
+ "62.12",
+ "$6.32B",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/hain"
+ ],
+ [
+ "HALL",
+ "Hallmark Financial Services, Inc.",
+ "10.87",
+ "$207.45M",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/hall"
+ ],
+ [
+ "HALO",
+ "Halozyme Therapeutics, Inc.",
+ "15.365",
+ "$1.93B",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/halo"
+ ],
+ [
+ "HART ",
+ "Harvard Apparatus Regenerative Technology, Inc.",
+ "3.32",
+ "$26.08M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/hart "
+ ],
+ [
+ "HAS",
+ "Hasbro, Inc.",
+ "61.83",
+ "$7.77B",
+ "n/a",
+ "Consumer Non-Durables",
+ "Recreational Products/Toys",
+ "http://www.nasdaq.com/symbol/has"
+ ],
+ [
+ "HAWK",
+ "Blackhawk Network Holdings, Inc.",
+ "38.15",
+ "$2.02B",
+ "2013",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/hawk"
+ ],
+ [
+ "HAWKB",
+ "Blackhawk Network Holdings, Inc.",
+ "37.71",
+ "$2B",
+ "n/a",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/hawkb"
+ ],
+ [
+ "HAYN",
+ "Haynes International, Inc.",
+ "41.54",
+ "$517.02M",
+ "2007",
+ "Capital Goods",
+ "Steel/Iron Ore",
+ "http://www.nasdaq.com/symbol/hayn"
+ ],
+ [
+ "HBAN",
+ "Huntington Bancshares Incorporated",
+ "10.72",
+ "$8.68B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/hban"
+ ],
+ [
+ "HBANP",
+ "Huntington Bancshares Incorporated",
+ "1335",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/hbanp"
+ ],
+ [
+ "HBCP",
+ "Home Bancorp, Inc.",
+ "21.06",
+ "$149.83M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/hbcp"
+ ],
+ [
+ "HBHC",
+ "Hancock Holding Company",
+ "29.4",
+ "$2.4B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/hbhc"
+ ],
+ [
+ "HBIO",
+ "Harvard Bioscience, Inc.",
+ "5.45",
+ "$176.69M",
+ "2000",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/hbio"
+ ],
+ [
+ "HBK",
+ "Hamilton Bancorp, Inc.",
+ "12.99",
+ "$44.4M",
+ "2012",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/hbk"
+ ],
+ [
+ "HBMD",
+ "Howard Bancorp, Inc.",
+ "13.24",
+ "$54.82M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/hbmd"
+ ],
+ [
+ "HBNC",
+ "Horizon Bancorp (IN)",
+ "22.44",
+ "$206.69M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/hbnc"
+ ],
+ [
+ "HBNK",
+ "Hampden Bancorp, Inc.",
+ "20.9001",
+ "$116.09M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/hbnk"
+ ],
+ [
+ "HBOS",
+ "Heritage Financial Group",
+ "25.11",
+ "$230.71M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/hbos"
+ ],
+ [
+ "HBP",
+ "Huttig Building Products, Inc.",
+ "3.1",
+ "$76.17M",
+ "n/a",
+ "Consumer Services",
+ "RETAIL: Building Materials",
+ "http://www.nasdaq.com/symbol/hbp"
+ ],
+ [
+ "HCAC",
+ "Hennessy Capital Acquisition Corp.",
+ "10.04",
+ "$144.33M",
+ "2014",
+ "Capital Goods",
+ "Construction/Ag Equipment/Trucks",
+ "http://www.nasdaq.com/symbol/hcac"
+ ],
+ [
+ "HCACU",
+ "Hennessy Capital Acquisition Corp.",
+ "11.64",
+ "$116.4M",
+ "2014",
+ "Finance",
+ "Investment Managers",
+ "http://www.nasdaq.com/symbol/hcacu"
+ ],
+ [
+ "HCACW",
+ "Hennessy Capital Acquisition Corp.",
+ "0.71",
+ "n/a",
+ "2014",
+ "Capital Goods",
+ "Construction/Ag Equipment/Trucks",
+ "http://www.nasdaq.com/symbol/hcacw"
+ ],
+ [
+ "HCAP",
+ "Harvest Capital Credit Corporation",
+ "12.38",
+ "$76.9M",
+ "2013",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/hcap"
+ ],
+ [
+ "HCAPL",
+ "Harvest Capital Credit Corporation",
+ "25.6759",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/hcapl"
+ ],
+ [
+ "HCBK",
+ "Hudson City Bancorp, Inc.",
+ "9.67",
+ "$5.11B",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/hcbk"
+ ],
+ [
+ "HCCI",
+ "Heritage-Crystal Clean, Inc.",
+ "12.5",
+ "$275.83M",
+ "2008",
+ "Basic Industries",
+ "Miscellaneous",
+ "http://www.nasdaq.com/symbol/hcci"
+ ],
+ [
+ "HCKT",
+ "The Hackett Group, Inc.",
+ "7.93",
+ "$231.55M",
+ "n/a",
+ "Consumer Services",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/hckt"
+ ],
+ [
+ "HCOM",
+ "Hawaiian Telcom Holdco, Inc.",
+ "26.44",
+ "$282.2M",
+ "n/a",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/hcom"
+ ],
+ [
+ "HCSG",
+ "Healthcare Services Group, Inc.",
+ "32.69",
+ "$2.33B",
+ "1983",
+ "Health Care",
+ "Hospital/Nursing Management",
+ "http://www.nasdaq.com/symbol/hcsg"
+ ],
+ [
+ "HDNG",
+ "Hardinge, Inc.",
+ "11.44",
+ "$146.68M",
+ "1995",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/hdng"
+ ],
+ [
+ "HDP",
+ "Hortonworks, Inc.",
+ "24.47",
+ "$1.02B",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/hdp"
+ ],
+ [
+ "HDRA",
+ "Hydra Industries Acquisition Corp.",
+ "9.5",
+ "$97.85M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/hdra"
+ ],
+ [
+ "HDRAR",
+ "Hydra Industries Acquisition Corp.",
+ "0.2792",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/hdrar"
+ ],
+ [
+ "HDRAU",
+ "Hydra Industries Acquisition Corp.",
+ "9.86",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/hdrau"
+ ],
+ [
+ "HDRAW",
+ "Hydra Industries Acquisition Corp.",
+ "0.19",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/hdraw"
+ ],
+ [
+ "HDS",
+ "HD Supply Holdings, Inc.",
+ "29.62",
+ "$5.81B",
+ "2013",
+ "Consumer Services",
+ "Office Equipment/Supplies/Services",
+ "http://www.nasdaq.com/symbol/hds"
+ ],
+ [
+ "HDSN",
+ "Hudson Technologies, Inc.",
+ "3.87",
+ "$123.96M",
+ "n/a",
+ "Consumer Durables",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/hdsn"
+ ],
+ [
+ "HEAR",
+ "Turtle Beach Corporation",
+ "2.57",
+ "$108.01M",
+ "n/a",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/hear"
+ ],
+ [
+ "HEES",
+ "H&E Equipment Services, Inc.",
+ "22.2",
+ "$782.18M",
+ "2006",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/hees"
+ ],
+ [
+ "HELE",
+ "Helen of Troy Limited",
+ "77.56",
+ "$2.2B",
+ "n/a",
+ "Consumer Durables",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/hele"
+ ],
+ [
+ "HEOP",
+ "Heritage Oaks Bancorp",
+ "7.87",
+ "$260.46M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/heop"
+ ],
+ [
+ "HERO",
+ "Hercules Offshore, Inc.",
+ "0.8601",
+ "$138.32M",
+ "2005",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/hero"
+ ],
+ [
+ "HFBC",
+ "HopFed Bancorp, Inc.",
+ "13.07",
+ "$94.24M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/hfbc"
+ ],
+ [
+ "HFBL",
+ "Home Federal Bancorp, Inc. of Louisiana",
+ "19.69",
+ "$42.66M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/hfbl"
+ ],
+ [
+ "HFFC",
+ "HF Financial Corp.",
+ "14.84",
+ "$104.68M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/hffc"
+ ],
+ [
+ "HFWA",
+ "Heritage Financial Corporation",
+ "16.29",
+ "$492.87M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/hfwa"
+ ],
+ [
+ "HGSH",
+ "China HGS Real Estate, Inc.",
+ "3.2",
+ "$144.16M",
+ "n/a",
+ "Finance",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/hgsh"
+ ],
+ [
+ "HIBB",
+ "Hibbett Sports, Inc.",
+ "49.06",
+ "$1.23B",
+ "1996",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/hibb"
+ ],
+ [
+ "HIFS",
+ "Hingham Institution for Savings",
+ "100.75",
+ "$214.47M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/hifs"
+ ],
+ [
+ "HIHO",
+ "Highway Holdings Limited",
+ "3.463",
+ "$13.1M",
+ "n/a",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/hiho"
+ ],
+ [
+ "HIIQ",
+ "Health Insurance Innovations, Inc.",
+ "7.77",
+ "$114.13M",
+ "2013",
+ "Finance",
+ "Specialty Insurers",
+ "http://www.nasdaq.com/symbol/hiiq"
+ ],
+ [
+ "HILL",
+ "Dot Hill Systems Corporation",
+ "4.38",
+ "$265.11M",
+ "n/a",
+ "Technology",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/hill"
+ ],
+ [
+ "HIMX",
+ "Himax Technologies, Inc.",
+ "7.75",
+ "$1.33B",
+ "2006",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/himx"
+ ],
+ [
+ "HKTV",
+ "Hong Kong Television Network Limited",
+ "8.01",
+ "$324.01M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/hktv"
+ ],
+ [
+ "HLIT",
+ "Harmonic Inc.",
+ "7.9",
+ "$695.67M",
+ "1995",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/hlit"
+ ],
+ [
+ "HLSS",
+ "Home Loan Servicing Solutions, Ltd.",
+ "16.76",
+ "$1.19B",
+ "2012",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/hlss"
+ ],
+ [
+ "HMHC",
+ "Houghton Mifflin Harcourt Company",
+ "20.07",
+ "$2.84B",
+ "2013",
+ "Consumer Services",
+ "Books",
+ "http://www.nasdaq.com/symbol/hmhc"
+ ],
+ [
+ "HMIN",
+ "Homeinns Hotel Group",
+ "29",
+ "$1.39B",
+ "n/a",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/hmin"
+ ],
+ [
+ "HMNF",
+ "HMN Financial, Inc.",
+ "12.0286",
+ "$53.77M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/hmnf"
+ ],
+ [
+ "HMNY",
+ "Helios and Matheson Analytics Inc",
+ "1.7856",
+ "$4.16M",
+ "n/a",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/hmny"
+ ],
+ [
+ "HMPR",
+ "Hampton Roads Bankshares Inc",
+ "1.63",
+ "$277.58M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/hmpr"
+ ],
+ [
+ "HMST",
+ "HomeStreet, Inc.",
+ "17.2",
+ "$255.53M",
+ "2012",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/hmst"
+ ],
+ [
+ "HMSY",
+ "HMS Holdings Corp",
+ "19.1",
+ "$1.68B",
+ "1992",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/hmsy"
+ ],
+ [
+ "HMTV",
+ "Hemisphere Media Group, Inc.",
+ "12.67",
+ "$571.75M",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/hmtv"
+ ],
+ [
+ "HNH",
+ "Handy & Harman Ltd.",
+ "46.66",
+ "$503.01M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/hnh"
+ ],
+ [
+ "HNNA",
+ "Hennessy Advisors, Inc.",
+ "22.6505",
+ "$136.46M",
+ "n/a",
+ "Finance",
+ "Investment Managers",
+ "http://www.nasdaq.com/symbol/hnna"
+ ],
+ [
+ "HNRG",
+ "Hallador Energy Company",
+ "11.44",
+ "$329.22M",
+ "n/a",
+ "Energy",
+ "Coal Mining",
+ "http://www.nasdaq.com/symbol/hnrg"
+ ],
+ [
+ "HNSN",
+ "Hansen Medical, Inc.",
+ "1.09",
+ "$144.44M",
+ "2006",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/hnsn"
+ ],
+ [
+ "HOFT",
+ "Hooker Furniture Corporation",
+ "18.5",
+ "$199.31M",
+ "n/a",
+ "Consumer Durables",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/hoft"
+ ],
+ [
+ "HOLI",
+ "Hollysys Automation Technologies, Ltd.",
+ "18.93",
+ "$1.1B",
+ "n/a",
+ "Energy",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/holi"
+ ],
+ [
+ "HOLX",
+ "Hologic, Inc.",
+ "31.735",
+ "$8.88B",
+ "1990",
+ "Health Care",
+ "Medical Electronics",
+ "http://www.nasdaq.com/symbol/holx"
+ ],
+ [
+ "HOMB",
+ "Home BancShares, Inc.",
+ "31.57",
+ "$2.13B",
+ "2006",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/homb"
+ ],
+ [
+ "HOTR",
+ "Chanticleer Holdings, Inc.",
+ "2.7",
+ "$19.55M",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/hotr"
+ ],
+ [
+ "HOTRW",
+ "Chanticleer Holdings, Inc.",
+ "0.2999",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/hotrw"
+ ],
+ [
+ "HOVNP",
+ "Hovnanian Enterprises Inc",
+ "14.94",
+ "$74.7M",
+ "n/a",
+ "Capital Goods",
+ "Homebuilding",
+ "http://www.nasdaq.com/symbol/hovnp"
+ ],
+ [
+ "HPJ",
+ "Highpower International Inc",
+ "5.38",
+ "$80.98M",
+ "n/a",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/hpj"
+ ],
+ [
+ "HPTX",
+ "Hyperion Therapeutics, Inc.",
+ "27.42",
+ "$568.24M",
+ "2012",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/hptx"
+ ],
+ [
+ "HQCL",
+ "Hanwha Q CELLS Co., Ltd. ",
+ "1.1784",
+ "$989.68M",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/hqcl"
+ ],
+ [
+ "HQY",
+ "HealthEquity, Inc.",
+ "19.42",
+ "$1.06B",
+ "2014",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/hqy"
+ ],
+ [
+ "HRTX",
+ "Heron Therapeutics, Inc. ",
+ "11.07",
+ "$323.02M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/hrtx"
+ ],
+ [
+ "HRZN",
+ "Horizon Technology Finance Corporation",
+ "14.03",
+ "$135.06M",
+ "2010",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/hrzn"
+ ],
+ [
+ "HSGX",
+ "Histogenics Corporation",
+ "9.6",
+ "$122.47M",
+ "2014",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/hsgx"
+ ],
+ [
+ "HSIC",
+ "Henry Schein, Inc.",
+ "142.55",
+ "$11.95B",
+ "1995",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/hsic"
+ ],
+ [
+ "HSII",
+ "Heidrick & Struggles International, Inc.",
+ "23.21",
+ "$423.45M",
+ "1999",
+ "Technology",
+ "Diversified Commercial Services",
+ "http://www.nasdaq.com/symbol/hsii"
+ ],
+ [
+ "HSKA",
+ "Heska Corporation",
+ "21.14",
+ "$133.6M",
+ "1997",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/hska"
+ ],
+ [
+ "HSNI",
+ "HSN, Inc.",
+ "68.11",
+ "$3.57B",
+ "n/a",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/hsni"
+ ],
+ [
+ "HSON",
+ "Hudson Global, Inc.",
+ "2.58",
+ "$85.43M",
+ "n/a",
+ "Technology",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/hson"
+ ],
+ [
+ "HSTM",
+ "HealthStream, Inc.",
+ "26.46",
+ "$731.21M",
+ "2000",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/hstm"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_13.json b/packages/flutter/example/stocks/data/stock_data_13.json
new file mode 100644
index 0000000..a907431
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_13.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "HTBI",
+ "HomeTrust Bancshares, Inc.",
+ "16.01",
+ "$326.58M",
+ "2012",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/htbi"
+ ],
+ [
+ "HTBK",
+ "Heritage Commerce Corp",
+ "8.64",
+ "$228.28M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/htbk"
+ ],
+ [
+ "HTBX",
+ "Heat Biologics, Inc.",
+ "6.83",
+ "$44.27M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/htbx"
+ ],
+ [
+ "HTCH",
+ "Hutchinson Technology Incorporated",
+ "3.66",
+ "$122.46M",
+ "1985",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/htch"
+ ],
+ [
+ "HTHT",
+ "China Lodging Group, Limited",
+ "22.07",
+ "$1.37B",
+ "2010",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/htht"
+ ],
+ [
+ "HTLD",
+ "Heartland Express, Inc.",
+ "25.49",
+ "$2.24B",
+ "1986",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/htld"
+ ],
+ [
+ "HTLF",
+ "Heartland Financial USA, Inc.",
+ "29.45",
+ "$544.23M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/htlf"
+ ],
+ [
+ "HTWO",
+ "HF2 Financial Management Inc.",
+ "10.2",
+ "$242.68M",
+ "2013",
+ "Finance",
+ "Investment Managers",
+ "http://www.nasdaq.com/symbol/htwo"
+ ],
+ [
+ "HTWR",
+ "Heartware International, Inc.",
+ "89.49",
+ "$1.52B",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/htwr"
+ ],
+ [
+ "HUBG",
+ "Hub Group, Inc.",
+ "38.77",
+ "$1.45B",
+ "1996",
+ "Transportation",
+ "Oil Refining/Marketing",
+ "http://www.nasdaq.com/symbol/hubg"
+ ],
+ [
+ "HURC",
+ "Hurco Companies, Inc.",
+ "35.25",
+ "$230.29M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/hurc"
+ ],
+ [
+ "HURN",
+ "Huron Consulting Group Inc.",
+ "77.8",
+ "$1.78B",
+ "2004",
+ "Consumer Services",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/hurn"
+ ],
+ [
+ "HWAY",
+ "Healthways, Inc.",
+ "21.15",
+ "$748.49M",
+ "n/a",
+ "Health Care",
+ "Hospital/Nursing Management",
+ "http://www.nasdaq.com/symbol/hway"
+ ],
+ [
+ "HWBK",
+ "Hawthorn Bancshares, Inc.",
+ "15",
+ "$78.51M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/hwbk"
+ ],
+ [
+ "HWCC",
+ "Houston Wire & Cable Company",
+ "10.6",
+ "$185.73M",
+ "2006",
+ "Consumer Non-Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/hwcc"
+ ],
+ [
+ "HWKN",
+ "Hawkins, Inc.",
+ "38.61",
+ "$411.01M",
+ "n/a",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/hwkn"
+ ],
+ [
+ "HYGS",
+ "Hydrogenics Corporation",
+ "13.83",
+ "$139.54M",
+ "n/a",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/hygs"
+ ],
+ [
+ "HYLS",
+ "First Trust High Yield Long/Short ETF",
+ "50.43",
+ "$186.59M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/hyls"
+ ],
+ [
+ "HYND",
+ "WisdomTree BofA Merrill Lynch High Yield Bond Negative Duratio",
+ "21.75",
+ "$8.7M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/hynd"
+ ],
+ [
+ "HYZD",
+ "WisdomTree BofA Merrill Lynch High Yield Bond Zero Duration Fu",
+ "24.24",
+ "$21.82M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/hyzd"
+ ],
+ [
+ "HZNP",
+ "Horizon Pharma plc",
+ "18.53",
+ "$2.2B",
+ "2011",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/hznp"
+ ],
+ [
+ "IACI",
+ "IAC/InterActiveCorp",
+ "67.06",
+ "$5.62B",
+ "n/a",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/iaci"
+ ],
+ [
+ "IART",
+ "Integra LifeSciences Holdings Corporation",
+ "56.99",
+ "$1.87B",
+ "n/a",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/iart"
+ ],
+ [
+ "IBB",
+ "iShares Nasdaq Biotechnology Index Fund",
+ "336.43",
+ "$7.75B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ibb"
+ ],
+ [
+ "IBCP",
+ "Independent Bank Corporation",
+ "12.55",
+ "$288.05M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ibcp"
+ ],
+ [
+ "IBKC",
+ "IBERIABANK Corporation",
+ "62.57",
+ "$2.09B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ibkc"
+ ],
+ [
+ "IBKR",
+ "Interactive Brokers Group, Inc.",
+ "32.53",
+ "$1.9B",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/ibkr"
+ ],
+ [
+ "IBOC",
+ "International Bancshares Corporation",
+ "24.65",
+ "$1.64B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/iboc"
+ ],
+ [
+ "IBTX",
+ "Independent Bank Group, Inc",
+ "36.95",
+ "$628.78M",
+ "2013",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ibtx"
+ ],
+ [
+ "ICAD",
+ "icad inc.",
+ "10.85",
+ "$168.64M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/icad"
+ ],
+ [
+ "ICBK",
+ "County Bancorp, Inc.",
+ "20.2108",
+ "$111.11M",
+ "2015",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/icbk"
+ ],
+ [
+ "ICCC",
+ "ImmuCell Corporation",
+ "6.6999",
+ "$20.28M",
+ "1987",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/iccc"
+ ],
+ [
+ "ICEL",
+ "Cellular Dynamics International, Inc.",
+ "5.36",
+ "$84.76M",
+ "2013",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/icel"
+ ],
+ [
+ "ICFI",
+ "ICF International, Inc.",
+ "39.56",
+ "$767.41M",
+ "2006",
+ "Consumer Services",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/icfi"
+ ],
+ [
+ "ICLD",
+ "InterCloud Systems, Inc",
+ "2.71",
+ "$46.2M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/icld"
+ ],
+ [
+ "ICLDW",
+ "InterCloud Systems, Inc",
+ "1.575",
+ "n/a",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/icldw"
+ ],
+ [
+ "ICLN",
+ "iShares S&P Global Clean Energy Index Fund",
+ "10.6101",
+ "$68.97M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/icln"
+ ],
+ [
+ "ICLR",
+ "ICON plc",
+ "60.31",
+ "$3.71B",
+ "1998",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/iclr"
+ ],
+ [
+ "ICON",
+ "Iconix Brand Group, Inc.",
+ "34.96",
+ "$1.68B",
+ "n/a",
+ "Consumer Non-Durables",
+ "Shoe Manufacturing",
+ "http://www.nasdaq.com/symbol/icon"
+ ],
+ [
+ "ICPT",
+ "Intercept Pharmaceuticals, Inc.",
+ "218.89",
+ "$4.94B",
+ "2012",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/icpt"
+ ],
+ [
+ "ICUI",
+ "ICU Medical, Inc.",
+ "87.85",
+ "$1.35B",
+ "1992",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/icui"
+ ],
+ [
+ "IDCC",
+ "InterDigital, Inc.",
+ "51.66",
+ "$1.92B",
+ "n/a",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/idcc"
+ ],
+ [
+ "IDRA",
+ "Idera Pharmaceuticals, Inc.",
+ "4.66",
+ "$549.08M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/idra"
+ ],
+ [
+ "IDSA",
+ "Industrial Services of America, Inc.",
+ "5.7499",
+ "$45.75M",
+ "n/a",
+ "Basic Industries",
+ "Miscellaneous",
+ "http://www.nasdaq.com/symbol/idsa"
+ ],
+ [
+ "IDSY",
+ "I.D. Systems, Inc.",
+ "6.73",
+ "$86.19M",
+ "1999",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/idsy"
+ ],
+ [
+ "IDTI",
+ "Integrated Device Technology, Inc.",
+ "20.84",
+ "$3.09B",
+ "1984",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/idti"
+ ],
+ [
+ "IDXX",
+ "IDEXX Laboratories, Inc.",
+ "158.15",
+ "$7.45B",
+ "1991",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/idxx"
+ ],
+ [
+ "IEP",
+ "Icahn Enterprises L.P.",
+ "98.95",
+ "$12.02B",
+ "n/a",
+ "Energy",
+ "Integrated oil Companies",
+ "http://www.nasdaq.com/symbol/iep"
+ ],
+ [
+ "IESC",
+ "Integrated Electrical Services, Inc.",
+ "7.96",
+ "$173.21M",
+ "n/a",
+ "Capital Goods",
+ "Engineering & Construction",
+ "http://www.nasdaq.com/symbol/iesc"
+ ],
+ [
+ "IEUS",
+ "iShares MSCI Europe Small-Cap ETF",
+ "44.83",
+ "$38.11M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ieus"
+ ],
+ [
+ "IFAS",
+ "iShares FTSE EPRA/NAREIT Asia Index Fund",
+ "32.16",
+ "$19.3M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ifas"
+ ],
+ [
+ "IFEU",
+ "iShares FTSE EPRA/NAREIT Europe Index Fund",
+ "40.49",
+ "$48.59M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ifeu"
+ ],
+ [
+ "IFGL",
+ "iShares FTSE EPRA/NAREIT Global Real Estate ex-US Index Fund",
+ "32.07",
+ "$997.38M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ifgl"
+ ],
+ [
+ "IFNA",
+ "iShares FTSE EPRA/NAREIT North America Index Fund",
+ "59.748",
+ "$23.9M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ifna"
+ ],
+ [
+ "IFON",
+ "InfoSonics Corp",
+ "1.78",
+ "$25.56M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/ifon"
+ ],
+ [
+ "IFV",
+ "First Trust Dorsey Wright International Focus 5 ETF",
+ "19.51",
+ "$26.34M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ifv"
+ ],
+ [
+ "IGLD",
+ "Internet Gold Golden Lines Ltd.",
+ "4.38",
+ "$84.11M",
+ "1999",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/igld"
+ ],
+ [
+ "IGOV",
+ "iShares S&P/Citigroup International Treasury Bond Fund",
+ "93.86",
+ "$483.38M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/igov"
+ ],
+ [
+ "IGTE",
+ "iGATE Corporation",
+ "39.32",
+ "$3.18B",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/igte"
+ ],
+ [
+ "III",
+ "Information Services Group, Inc.",
+ "4.22",
+ "$154.9M",
+ "n/a",
+ "Consumer Services",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/iii"
+ ],
+ [
+ "IIIN",
+ "Insteel Industries, Inc.",
+ "21.5",
+ "$395.11M",
+ "n/a",
+ "Capital Goods",
+ "Steel/Iron Ore",
+ "http://www.nasdaq.com/symbol/iiin"
+ ],
+ [
+ "IIJI",
+ "Internet Initiative Japan, Inc.",
+ "9.75",
+ "$895.87M",
+ "n/a",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/iiji"
+ ],
+ [
+ "IILG",
+ "Interval Leisure Group, Inc.",
+ "25.84",
+ "$1.48B",
+ "n/a",
+ "Finance",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/iilg"
+ ],
+ [
+ "IIN",
+ "IntriCon Corporation",
+ "7.85",
+ "$45.74M",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/iin"
+ ],
+ [
+ "IIVI",
+ "II-VI Incorporated",
+ "17.54",
+ "$1.07B",
+ "1987",
+ "Capital Goods",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/iivi"
+ ],
+ [
+ "IKAN",
+ "Ikanos Communications, Inc.",
+ "3.35",
+ "$46.69M",
+ "2005",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/ikan"
+ ],
+ [
+ "IKGH",
+ "Iao Kun Group Holding Company Limited",
+ "1.39",
+ "$84.03M",
+ "n/a",
+ "Consumer Services",
+ "Services-Misc. Amusement & Recreation",
+ "http://www.nasdaq.com/symbol/ikgh"
+ ],
+ [
+ "IKNX",
+ "Ikonics Corporation",
+ "18.15",
+ "$36.63M",
+ "n/a",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/iknx"
+ ],
+ [
+ "ILMN",
+ "Illumina, Inc.",
+ "203.135",
+ "$29.21B",
+ "2000",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/ilmn"
+ ],
+ [
+ "IMDZ",
+ "Immune Design Corp.",
+ "24.18",
+ "$408.13M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/imdz"
+ ],
+ [
+ "IMGN",
+ "ImmunoGen, Inc.",
+ "7.62",
+ "$656.14M",
+ "1989",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/imgn"
+ ],
+ [
+ "IMI",
+ "Intermolecular, Inc.",
+ "1.73",
+ "$82.34M",
+ "2011",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/imi"
+ ],
+ [
+ "IMKTA",
+ "Ingles Markets, Incorporated",
+ "42.91",
+ "$869.35M",
+ "1987",
+ "Consumer Services",
+ "Food Chains",
+ "http://www.nasdaq.com/symbol/imkta"
+ ],
+ [
+ "IMMR",
+ "Immersion Corporation",
+ "8.8",
+ "$243.57M",
+ "1999",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/immr"
+ ],
+ [
+ "IMMU",
+ "Immunomedics, Inc.",
+ "3.99",
+ "$372.61M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/immu"
+ ],
+ [
+ "IMMY",
+ "Imprimis Pharmaceuticals, Inc.",
+ "7.68",
+ "$71.08M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/immy"
+ ],
+ [
+ "IMNP ",
+ "Immune Pharmaceuticals Inc.",
+ "1.81",
+ "$34.75M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/imnp "
+ ],
+ [
+ "IMOS",
+ "ChipMOS TECHNOLOGIES (Bermuda) LTD.",
+ "23.65",
+ "$699.69M",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/imos"
+ ],
+ [
+ "IMRS",
+ "Imris Inc",
+ "0.8546",
+ "$53.49M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/imrs"
+ ],
+ [
+ "INAP",
+ "Internap Corporation",
+ "9.04",
+ "$386.44M",
+ "1999",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/inap"
+ ],
+ [
+ "INBK",
+ "First Internet Bancorp",
+ "16.278",
+ "$72.27M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/inbk"
+ ],
+ [
+ "INCR",
+ "INC Research Holdings, Inc.",
+ "25.61",
+ "$1.57B",
+ "2014",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/incr"
+ ],
+ [
+ "INCY",
+ "Incyte Corporation",
+ "82.49",
+ "$14.17B",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/incy"
+ ],
+ [
+ "INDB",
+ "Independent Bank Corp.",
+ "41.81",
+ "$1B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/indb"
+ ],
+ [
+ "INDY",
+ "iShares S&P India Nifty 50 Index Fund",
+ "32.8",
+ "$941.36M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/indy"
+ ],
+ [
+ "INFA",
+ "Informatica Corporation",
+ "43.9",
+ "$4.77B",
+ "1999",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/infa"
+ ],
+ [
+ "INFI",
+ "Infinity Pharmaceuticals, Inc.",
+ "15.69",
+ "$765.15M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/infi"
+ ],
+ [
+ "INFN",
+ "Infinera Corporation",
+ "17.65",
+ "$2.26B",
+ "2007",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/infn"
+ ],
+ [
+ "INGN",
+ "Inogen, Inc",
+ "33.34",
+ "$621.09M",
+ "2014",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/ingn"
+ ],
+ [
+ "ININ",
+ "Interactive Intelligence Group, Inc.",
+ "42.53",
+ "$896.87M",
+ "1999",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/inin"
+ ],
+ [
+ "INNL",
+ "Innocoll AG",
+ "8.01",
+ "$158.62M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/innl"
+ ],
+ [
+ "INO",
+ "Inovio Pharmaceuticals, Inc.",
+ "6.88",
+ "$416.87M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/ino"
+ ],
+ [
+ "INOD",
+ "Innodata Inc.",
+ "2.7",
+ "$68.41M",
+ "1993",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/inod"
+ ],
+ [
+ "INOV",
+ "Inovalon Holdings, Inc.",
+ "29.84",
+ "$4.31B",
+ "2015",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/inov"
+ ],
+ [
+ "INPH",
+ "Interphase Corporation",
+ "2.17",
+ "$18.18M",
+ "1984",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/inph"
+ ],
+ [
+ "INSM",
+ "Insmed, Inc.",
+ "17.58",
+ "$873.11M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/insm"
+ ],
+ [
+ "INSY",
+ "Insys Therapeutics, Inc.",
+ "52.42",
+ "$1.83B",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/insy"
+ ],
+ [
+ "INTC",
+ "Intel Corporation",
+ "34.41",
+ "$162.97B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/intc"
+ ],
+ [
+ "INTG",
+ "The Intergroup Corporation",
+ "19.6",
+ "$46.71M",
+ "n/a",
+ "Consumer Services",
+ "Building operators",
+ "http://www.nasdaq.com/symbol/intg"
+ ],
+ [
+ "INTL",
+ "INTL FCStone Inc.",
+ "25.2",
+ "$475.43M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/intl"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_14.json b/packages/flutter/example/stocks/data/stock_data_14.json
new file mode 100644
index 0000000..6514c95
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_14.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "INTLL",
+ "INTL FCStone Inc.",
+ "25.76",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/intll"
+ ],
+ [
+ "INTU",
+ "Intuit Inc.",
+ "96.72",
+ "$26.76B",
+ "1993",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/intu"
+ ],
+ [
+ "INTX",
+ "Intersections, Inc.",
+ "3.76",
+ "$69.68M",
+ "2004",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/intx"
+ ],
+ [
+ "INVE",
+ "Identiv, Inc.",
+ "11.35",
+ "$120.79M",
+ "n/a",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/inve"
+ ],
+ [
+ "INVT",
+ "Inventergy Global, Inc.",
+ "0.51",
+ "$13.66M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/invt"
+ ],
+ [
+ "INWK",
+ "InnerWorkings, Inc.",
+ "6.43",
+ "$346.48M",
+ "2006",
+ "Consumer Durables",
+ "Containers/Packaging",
+ "http://www.nasdaq.com/symbol/inwk"
+ ],
+ [
+ "IOSP",
+ "Innospec Inc.",
+ "43.95",
+ "$1.07B",
+ "n/a",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/iosp"
+ ],
+ [
+ "IPAR",
+ "Inter Parfums, Inc.",
+ "27.31",
+ "$845.05M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Package Goods/Cosmetics",
+ "http://www.nasdaq.com/symbol/ipar"
+ ],
+ [
+ "IPAS",
+ "iPass Inc.",
+ "0.9",
+ "$58.17M",
+ "2003",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/ipas"
+ ],
+ [
+ "IPCC",
+ "Infinity Property and Casualty Corporation",
+ "75.47",
+ "$867.55M",
+ "2003",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/ipcc"
+ ],
+ [
+ "IPCI",
+ "Intellipharmaceutics International Inc.",
+ "2.48",
+ "$58.17M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ipci"
+ ],
+ [
+ "IPCM",
+ "IPC Healthcare, Inc.",
+ "41.71",
+ "$718.35M",
+ "2008",
+ "Health Care",
+ "Hospital/Nursing Management",
+ "http://www.nasdaq.com/symbol/ipcm"
+ ],
+ [
+ "IPDN",
+ "Professional Diversity Network, Inc.",
+ "4.88",
+ "$61.58M",
+ "2013",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/ipdn"
+ ],
+ [
+ "IPGP",
+ "IPG Photonics Corporation",
+ "93.28",
+ "$4.87B",
+ "2006",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/ipgp"
+ ],
+ [
+ "IPHS",
+ "Innophos Holdings, Inc.",
+ "56.92",
+ "$1.21B",
+ "2006",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/iphs"
+ ],
+ [
+ "IPKW",
+ "PowerShares International BuyBack Achievers Portfolio",
+ "26.0535",
+ "$18.24M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ipkw"
+ ],
+ [
+ "IPWR",
+ "Ideal Power Inc.",
+ "7.82",
+ "$55.12M",
+ "2013",
+ "Energy",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/ipwr"
+ ],
+ [
+ "IPXL",
+ "Impax Laboratories, Inc.",
+ "40.35",
+ "$2.87B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ipxl"
+ ],
+ [
+ "IQNT",
+ "Inteliquent, Inc.",
+ "17.94",
+ "$594.08M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/iqnt"
+ ],
+ [
+ "IRBT",
+ "iRobot Corporation",
+ "31.46",
+ "$933.49M",
+ "2005",
+ "Consumer Durables",
+ "Consumer Electronics/Appliances",
+ "http://www.nasdaq.com/symbol/irbt"
+ ],
+ [
+ "IRCP",
+ "IRSA Propiedades Comerciales S.A.",
+ "23.01",
+ "$724.9M",
+ "n/a",
+ "Consumer Services",
+ "Building operators",
+ "http://www.nasdaq.com/symbol/ircp"
+ ],
+ [
+ "IRDM",
+ "Iridium Communications Inc",
+ "9.58",
+ "$898.05M",
+ "n/a",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/irdm"
+ ],
+ [
+ "IRDMB",
+ "Iridium Communications Inc",
+ "357.9",
+ "$178.95M",
+ "n/a",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/irdmb"
+ ],
+ [
+ "IRG",
+ "Ignite Restaurant Group, Inc.",
+ "7.15",
+ "$187.34M",
+ "2012",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/irg"
+ ],
+ [
+ "IRIX",
+ "IRIDEX Corporation",
+ "9.83",
+ "$96.74M",
+ "1996",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/irix"
+ ],
+ [
+ "IRMD",
+ "iRadimed Corporation",
+ "14.7305",
+ "$159.31M",
+ "2014",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/irmd"
+ ],
+ [
+ "IROQ",
+ "IF Bancorp, Inc.",
+ "16.75",
+ "$72.68M",
+ "2011",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/iroq"
+ ],
+ [
+ "IRWD",
+ "Ironwood Pharmaceuticals, Inc.",
+ "15.65",
+ "$2.21B",
+ "2010",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/irwd"
+ ],
+ [
+ "ISBC",
+ "Investors Bancorp, Inc.",
+ "11.68",
+ "$4.18B",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/isbc"
+ ],
+ [
+ "ISCA",
+ "International Speedway Corporation",
+ "31.98",
+ "$1.49B",
+ "1996",
+ "Consumer Services",
+ "Services-Misc. Amusement & Recreation",
+ "http://www.nasdaq.com/symbol/isca"
+ ],
+ [
+ "ISHG",
+ "iShares 1-3 Year International Treasury Bond ETF",
+ "81.41",
+ "$154.68M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ishg"
+ ],
+ [
+ "ISIG",
+ "Insignia Systems, Inc.",
+ "3.09",
+ "$37.99M",
+ "1991",
+ "Consumer Services",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/isig"
+ ],
+ [
+ "ISIL",
+ "Intersil Corporation",
+ "15.36",
+ "$2B",
+ "2000",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/isil"
+ ],
+ [
+ "ISIS",
+ "Isis Pharmaceuticals, Inc.",
+ "67.01",
+ "$7.92B",
+ "1991",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/isis"
+ ],
+ [
+ "ISLE",
+ "Isle of Capri Casinos, Inc.",
+ "10.44",
+ "$417.89M",
+ "n/a",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/isle"
+ ],
+ [
+ "ISM",
+ "SLM Corporation",
+ "24.01",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/ism"
+ ],
+ [
+ "ISNS",
+ "Image Sensing Systems, Inc.",
+ "2.43",
+ "$12.12M",
+ "1995",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/isns"
+ ],
+ [
+ "ISRG",
+ "Intuitive Surgical, Inc.",
+ "513.31",
+ "$18.79B",
+ "2000",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/isrg"
+ ],
+ [
+ "ISRL",
+ "Isramco, Inc.",
+ "123",
+ "$334.28M",
+ "1983",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/isrl"
+ ],
+ [
+ "ISSC",
+ "Innovative Solutions and Support, Inc.",
+ "4.4",
+ "$74.31M",
+ "2000",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/issc"
+ ],
+ [
+ "ISSI",
+ "Integrated Silicon Solution, Inc.",
+ "16.4",
+ "$516.64M",
+ "1995",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/issi"
+ ],
+ [
+ "ISTR",
+ "Investar Holding Corporation",
+ "14.6",
+ "$105.91M",
+ "2014",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/istr"
+ ],
+ [
+ "ITCI",
+ "Intra-Cellular Therapies Inc.",
+ "25.65",
+ "$754.04M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/itci"
+ ],
+ [
+ "ITEK",
+ "Inotek Pharmaceuticals Corporation",
+ "6.09",
+ "$96.69M",
+ "2015",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/itek"
+ ],
+ [
+ "ITIC",
+ "Investors Title Company",
+ "73.81",
+ "$149.75M",
+ "n/a",
+ "Finance",
+ "Specialty Insurers",
+ "http://www.nasdaq.com/symbol/itic"
+ ],
+ [
+ "ITRI",
+ "Itron, Inc.",
+ "35.13",
+ "$1.37B",
+ "1993",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/itri"
+ ],
+ [
+ "ITRN",
+ "Ituran Location and Control Ltd.",
+ "23.09",
+ "$542.05M",
+ "2005",
+ "Consumer Non-Durables",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/itrn"
+ ],
+ [
+ "IVAC",
+ "Intevac, Inc.",
+ "7",
+ "$163.1M",
+ "1995",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/ivac"
+ ],
+ [
+ "IVAN",
+ "Ivanhoe Energy, Inc.",
+ "0.424",
+ "$6.96M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/ivan"
+ ],
+ [
+ "IXYS",
+ "IXYS Corporation",
+ "12.14",
+ "$384.22M",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/ixys"
+ ],
+ [
+ "JACK",
+ "Jack In The Box Inc.",
+ "97.99",
+ "$3.73B",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/jack"
+ ],
+ [
+ "JAKK",
+ "JAKKS Pacific, Inc.",
+ "6.96",
+ "$161.92M",
+ "1996",
+ "Consumer Non-Durables",
+ "Recreational Products/Toys",
+ "http://www.nasdaq.com/symbol/jakk"
+ ],
+ [
+ "JASN",
+ "Jason Industries, Inc.",
+ "8.01",
+ "$176.15M",
+ "2013",
+ "Consumer Durables",
+ "Miscellaneous manufacturing industries",
+ "http://www.nasdaq.com/symbol/jasn"
+ ],
+ [
+ "JASNW",
+ "Jason Industries, Inc.",
+ "1.07",
+ "n/a",
+ "2013",
+ "Consumer Durables",
+ "Miscellaneous manufacturing industries",
+ "http://www.nasdaq.com/symbol/jasnw"
+ ],
+ [
+ "JASO",
+ "JA Solar Holdings, Co., Ltd.",
+ "8.63",
+ "$392.66M",
+ "2007",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/jaso"
+ ],
+ [
+ "JAXB",
+ "Jacksonville Bancorp, Inc.",
+ "10.4375",
+ "$60.49M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/jaxb"
+ ],
+ [
+ "JAZZ",
+ "Jazz Pharmaceuticals plc",
+ "172.42",
+ "$10.43B",
+ "2007",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/jazz"
+ ],
+ [
+ "JBHT",
+ "J.B. Hunt Transport Services, Inc.",
+ "85.15",
+ "$9.98B",
+ "n/a",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/jbht"
+ ],
+ [
+ "JBLU",
+ "JetBlue Airways Corporation",
+ "17.49",
+ "$5.44B",
+ "2002",
+ "Transportation",
+ "Air Freight/Delivery Services",
+ "http://www.nasdaq.com/symbol/jblu"
+ ],
+ [
+ "JBSS",
+ "John B. Sanfilippo & Son, Inc.",
+ "36.04",
+ "$401.02M",
+ "1991",
+ "Consumer Non-Durables",
+ "Specialty Foods",
+ "http://www.nasdaq.com/symbol/jbss"
+ ],
+ [
+ "JCOM",
+ "j2 Global, Inc.",
+ "67.16",
+ "$3.21B",
+ "1999",
+ "Technology",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/jcom"
+ ],
+ [
+ "JCS",
+ "Communications Systems, Inc.",
+ "11.1",
+ "$96.05M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/jcs"
+ ],
+ [
+ "JCTCF",
+ "Jewett-Cameron Trading Company",
+ "11.4239",
+ "$29.54M",
+ "n/a",
+ "Consumer Services",
+ "RETAIL: Building Materials",
+ "http://www.nasdaq.com/symbol/jctcf"
+ ],
+ [
+ "JD",
+ "JD.com, Inc.",
+ "28.21",
+ "$38.43B",
+ "2014",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/jd"
+ ],
+ [
+ "JDSU",
+ "JDS Uniphase Corporation",
+ "13.53",
+ "$3.15B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/jdsu"
+ ],
+ [
+ "JGBB",
+ "WisdomTree Japan Interest Rate Strategy Fund",
+ "49.4",
+ "$4.94M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/jgbb"
+ ],
+ [
+ "JIVE",
+ "Jive Software, Inc.",
+ "5.01",
+ "$358.68M",
+ "2011",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/jive"
+ ],
+ [
+ "JJSF",
+ "J & J Snack Foods Corp.",
+ "100.45",
+ "$1.88B",
+ "1986",
+ "Consumer Non-Durables",
+ "Specialty Foods",
+ "http://www.nasdaq.com/symbol/jjsf"
+ ],
+ [
+ "JKHY",
+ "Jack Henry & Associates, Inc.",
+ "67.26",
+ "$5.5B",
+ "1985",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/jkhy"
+ ],
+ [
+ "JMBA",
+ "Jamba, Inc.",
+ "14.98",
+ "$260.7M",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/jmba"
+ ],
+ [
+ "JOBS",
+ "51job, Inc.",
+ "33.77",
+ "$1.99B",
+ "2004",
+ "Technology",
+ "Diversified Commercial Services",
+ "http://www.nasdaq.com/symbol/jobs"
+ ],
+ [
+ "JOEZ",
+ "Joe's Jeans Inc.",
+ "0.21",
+ "$14.58M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/joez"
+ ],
+ [
+ "JOUT",
+ "Johnson Outdoors Inc.",
+ "29.5",
+ "$295.09M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Recreational Products/Toys",
+ "http://www.nasdaq.com/symbol/jout"
+ ],
+ [
+ "JRJC",
+ "China Finance Online Co. Limited",
+ "5.8655",
+ "$130.38M",
+ "2004",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/jrjc"
+ ],
+ [
+ "JRVR",
+ "James River Group Holdings, Ltd.",
+ "21.82",
+ "$622.75M",
+ "2014",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/jrvr"
+ ],
+ [
+ "JSM",
+ "SLM Corporation",
+ "22.7",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/jsm"
+ ],
+ [
+ "JST",
+ "Jinpan International Limited",
+ "5.3699",
+ "$88.17M",
+ "1998",
+ "Consumer Durables",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/jst"
+ ],
+ [
+ "JTPY",
+ "JetPay Corporation",
+ "2.62",
+ "$36.32M",
+ "2011",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/jtpy"
+ ],
+ [
+ "JUNO",
+ "Juno Therapeutics, Inc.",
+ "45.52",
+ "$4.12B",
+ "2014",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/juno"
+ ],
+ [
+ "JVA",
+ "Coffee Holding Co., Inc.",
+ "5.05",
+ "$32.6M",
+ "2005",
+ "Consumer Non-Durables",
+ "Food Distributors",
+ "http://www.nasdaq.com/symbol/jva"
+ ],
+ [
+ "JXSB",
+ "Jacksonville Bancorp Inc.",
+ "23",
+ "$41.83M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/jxsb"
+ ],
+ [
+ "JYNT",
+ "The Joint Corp.",
+ "7.19",
+ "$69.92M",
+ "2014",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/jynt"
+ ],
+ [
+ "KALU",
+ "Kaiser Aluminum Corporation",
+ "75.34",
+ "$1.34B",
+ "n/a",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/kalu"
+ ],
+ [
+ "KANG",
+ "iKang Healthcare Group, Inc.",
+ "17.35",
+ "$1.14B",
+ "2014",
+ "Health Care",
+ "Medical/Nursing Services",
+ "http://www.nasdaq.com/symbol/kang"
+ ],
+ [
+ "KBAL",
+ "Kimball International, Inc.",
+ "9.27",
+ "$360.32M",
+ "n/a",
+ "Consumer Durables",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/kbal"
+ ],
+ [
+ "KBIO",
+ "KaloBios Pharmaceuticals, Inc.",
+ "0.452",
+ "$14.91M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/kbio"
+ ],
+ [
+ "KBSF",
+ "KBS Fashion Group Limited",
+ "3.65",
+ "$92.77M",
+ "2013",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/kbsf"
+ ],
+ [
+ "KCAP",
+ "KCAP Financial, Inc.",
+ "7.33",
+ "$269.4M",
+ "2006",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/kcap"
+ ],
+ [
+ "KCLI",
+ "Kansas City Life Insurance Company",
+ "45.78",
+ "$498.5M",
+ "n/a",
+ "Finance",
+ "Life Insurance",
+ "http://www.nasdaq.com/symbol/kcli"
+ ],
+ [
+ "KE",
+ "Kimball Electronics, Inc.",
+ "12.05",
+ "$351.52M",
+ "n/a",
+ "Technology",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/ke"
+ ],
+ [
+ "KELYA",
+ "Kelly Services, Inc.",
+ "17.68",
+ "$666.99M",
+ "n/a",
+ "Technology",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/kelya"
+ ],
+ [
+ "KELYB",
+ "Kelly Services, Inc.",
+ "17.914",
+ "$675.82M",
+ "n/a",
+ "Technology",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/kelyb"
+ ],
+ [
+ "KEQU",
+ "Kewaunee Scientific Corporation",
+ "17.84",
+ "$46.86M",
+ "n/a",
+ "Capital Goods",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/kequ"
+ ],
+ [
+ "KERX",
+ "Keryx Biopharmaceuticals, Inc.",
+ "12.07",
+ "$1.12B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/kerx"
+ ],
+ [
+ "KEYW",
+ "The KEYW Holding Corporation",
+ "8.77",
+ "$329.67M",
+ "2010",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/keyw"
+ ],
+ [
+ "KFFB",
+ "Kentucky First Federal Bancorp",
+ "7.98",
+ "$67.49M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/kffb"
+ ],
+ [
+ "KFRC",
+ "Kforce, Inc.",
+ "23.57",
+ "$720.95M",
+ "1995",
+ "Technology",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/kfrc"
+ ],
+ [
+ "KFX",
+ "Kofax Limited",
+ "6.79",
+ "$626.01M",
+ "2013",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/kfx"
+ ],
+ [
+ "KGJI",
+ "Kingold Jewelry Inc.",
+ "1.06",
+ "$69.91M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/kgji"
+ ],
+ [
+ "KIN",
+ "Kindred Biosciences, Inc.",
+ "6.77",
+ "$133.53M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/kin"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_15.json b/packages/flutter/example/stocks/data/stock_data_15.json
new file mode 100644
index 0000000..8666c06
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_15.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "KINS",
+ "Kingstone Companies, Inc",
+ "7.5499",
+ "$55.08M",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/kins"
+ ],
+ [
+ "KIRK",
+ "Kirkland's, Inc.",
+ "24.45",
+ "$419.23M",
+ "2002",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/kirk"
+ ],
+ [
+ "KITE",
+ "Kite Pharma, Inc.",
+ "62.8",
+ "$2.66B",
+ "2014",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/kite"
+ ],
+ [
+ "KLAC",
+ "KLA-Tencor Corporation",
+ "64.97",
+ "$10.57B",
+ "1980",
+ "Capital Goods",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/klac"
+ ],
+ [
+ "KLIC",
+ "Kulicke and Soffa Industries, Inc.",
+ "16.06",
+ "$1.23B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/klic"
+ ],
+ [
+ "KLXI",
+ "KLX Inc.",
+ "39.28",
+ "n/a",
+ "n/a",
+ "Capital Goods",
+ "Aerospace",
+ "http://www.nasdaq.com/symbol/klxi"
+ ],
+ [
+ "KMDA",
+ "Kamada Ltd.",
+ "4.57",
+ "$164.47M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/kmda"
+ ],
+ [
+ "KNDI",
+ "Kandi Technologies Group, Inc.",
+ "13.62",
+ "$630.26M",
+ "n/a",
+ "Capital Goods",
+ "Auto Manufacturing",
+ "http://www.nasdaq.com/symbol/kndi"
+ ],
+ [
+ "KONA",
+ "Kona Grill, Inc.",
+ "25.19",
+ "$278.05M",
+ "2005",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/kona"
+ ],
+ [
+ "KONE",
+ "Kingtone Wirelessinfo Solution Holding Ltd",
+ "3.38",
+ "$4.75M",
+ "2010",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/kone"
+ ],
+ [
+ "KOOL",
+ "Cesca Therapeutics Inc.",
+ "0.938",
+ "$37.79M",
+ "n/a",
+ "Capital Goods",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/kool"
+ ],
+ [
+ "KOPN",
+ "Kopin Corporation",
+ "3.9",
+ "$257.04M",
+ "1992",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/kopn"
+ ],
+ [
+ "KOSS",
+ "Koss Corporation",
+ "1.93",
+ "$14.25M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Consumer Electronics/Appliances",
+ "http://www.nasdaq.com/symbol/koss"
+ ],
+ [
+ "KPTI",
+ "Karyopharm Therapeutics Inc.",
+ "27.55",
+ "$900.97M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/kpti"
+ ],
+ [
+ "KRFT",
+ "Kraft Foods Group, Inc.",
+ "64.42",
+ "$37.88B",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/krft"
+ ],
+ [
+ "KRNY",
+ "Kearny Financial",
+ "13.38",
+ "$901.48M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/krny"
+ ],
+ [
+ "KTCC",
+ "Key Tronic Corporation",
+ "9.79",
+ "$103.3M",
+ "1983",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/ktcc"
+ ],
+ [
+ "KTEC",
+ "Key Technology, Inc.",
+ "12.53",
+ "$78.17M",
+ "1993",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/ktec"
+ ],
+ [
+ "KTOS",
+ "Kratos Defense & Security Solutions, Inc.",
+ "5.84",
+ "$337.53M",
+ "n/a",
+ "Capital Goods",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/ktos"
+ ],
+ [
+ "KTWO",
+ "K2M Group Holdings, Inc.",
+ "19.49",
+ "$769.17M",
+ "2014",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/ktwo"
+ ],
+ [
+ "KUTV",
+ "Ku6 Media Co., Ltd.",
+ "0.9201",
+ "$43.76M",
+ "n/a",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/kutv"
+ ],
+ [
+ "KVHI",
+ "KVH Industries, Inc.",
+ "12.86",
+ "$204.62M",
+ "1996",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/kvhi"
+ ],
+ [
+ "KWEB",
+ "KraneShares CSI China Internet ETF",
+ "33.58",
+ "$94.02M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/kweb"
+ ],
+ [
+ "KYTH",
+ "Kythera Biopharmaceuticals, Inc.",
+ "43.43",
+ "$984.79M",
+ "2012",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/kyth"
+ ],
+ [
+ "KZ",
+ "KongZhong Corporation",
+ "5.21",
+ "$238.99M",
+ "n/a",
+ "Technology",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/kz"
+ ],
+ [
+ "LABC",
+ "Louisiana Bancorp, Inc.",
+ "22",
+ "$61.52M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/labc"
+ ],
+ [
+ "LABL",
+ "Multi-Color Corporation",
+ "66.42",
+ "$1.1B",
+ "1987",
+ "Miscellaneous",
+ "Publishing",
+ "http://www.nasdaq.com/symbol/labl"
+ ],
+ [
+ "LACO",
+ "Lakes Entertainment, Inc.",
+ "8.45",
+ "$113.14M",
+ "n/a",
+ "Consumer Services",
+ "Services-Misc. Amusement & Recreation",
+ "http://www.nasdaq.com/symbol/laco"
+ ],
+ [
+ "LAKE",
+ "Lakeland Industries, Inc.",
+ "10",
+ "$70.47M",
+ "1986",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/lake"
+ ],
+ [
+ "LALT",
+ "PowerShares Multi-Strategy Alternative Portfolio",
+ "23.28",
+ "$20.95M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/lalt"
+ ],
+ [
+ "LAMR",
+ "Lamar Advertising Company",
+ "58.24",
+ "$6.41B",
+ "1996",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/lamr"
+ ],
+ [
+ "LANC",
+ "Lancaster Colony Corporation",
+ "90.76",
+ "$2.48B",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/lanc"
+ ],
+ [
+ "LAND",
+ "Gladstone Land Corporation",
+ "10.6",
+ "$82.19M",
+ "1993",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/land"
+ ],
+ [
+ "LARK",
+ "Landmark Bancorp Inc.",
+ "23.98",
+ "$76.13M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/lark"
+ ],
+ [
+ "LAWS",
+ "Lawson Products, Inc.",
+ "24.65",
+ "$214.61M",
+ "n/a",
+ "Consumer Durables",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/laws"
+ ],
+ [
+ "LAYN",
+ "Layne Christensen Company",
+ "7.6",
+ "$150.02M",
+ "1992",
+ "Basic Industries",
+ "Engineering & Construction",
+ "http://www.nasdaq.com/symbol/layn"
+ ],
+ [
+ "LBAI",
+ "Lakeland Bancorp, Inc.",
+ "11.1",
+ "$420.81M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/lbai"
+ ],
+ [
+ "LBIX",
+ "Leading Brands Inc",
+ "2.86",
+ "$8.38M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Beverages (Production/Distribution)",
+ "http://www.nasdaq.com/symbol/lbix"
+ ],
+ [
+ "LBRDA",
+ "Liberty Broadband Corporation",
+ "50.61",
+ "$4.4B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/lbrda"
+ ],
+ [
+ "LBRDK",
+ "Liberty Broadband Corporation",
+ "50.28",
+ "$4.37B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/lbrdk"
+ ],
+ [
+ "LBTYA",
+ "Liberty Global plc",
+ "53.25",
+ "$47.24B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/lbtya"
+ ],
+ [
+ "LBTYB",
+ "Liberty Global plc",
+ "52.79",
+ "$46.83B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/lbtyb"
+ ],
+ [
+ "LBTYK",
+ "Liberty Global plc",
+ "51.65",
+ "$45.82B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/lbtyk"
+ ],
+ [
+ "LCNB",
+ "LCNB Corporation",
+ "15.12",
+ "$140.7M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/lcnb"
+ ],
+ [
+ "LCUT",
+ "Lifetime Brands, Inc.",
+ "16.06",
+ "$219.76M",
+ "1991",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/lcut"
+ ],
+ [
+ "LDRH",
+ "LDR Holding Corporation",
+ "37.7",
+ "$982.34M",
+ "2013",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/ldrh"
+ ],
+ [
+ "LDRI",
+ "PowerShares LadderRite 0-5 Year Corporate Bond Portfolio",
+ "25.0299",
+ "$5.01M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ldri"
+ ],
+ [
+ "LE",
+ "Lands' End, Inc.",
+ "35.32",
+ "$1.13B",
+ "n/a",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/le"
+ ],
+ [
+ "LECO",
+ "Lincoln Electric Holdings, Inc.",
+ "70.175",
+ "$5.45B",
+ "n/a",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/leco"
+ ],
+ [
+ "LEDS",
+ "SemiLEDS Corporation",
+ "1.36",
+ "$38.66M",
+ "2010",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/leds"
+ ],
+ [
+ "LENS",
+ "Presbia PLC",
+ "7.125",
+ "$95M",
+ "2015",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/lens"
+ ],
+ [
+ "LEVY",
+ "Levy Acquisition Corp.",
+ "9.9899",
+ "$187.31M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/levy"
+ ],
+ [
+ "LEVYU",
+ "Levy Acquisition Corp.",
+ "10.33",
+ "$193.69M",
+ "2013",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/levyu"
+ ],
+ [
+ "LEVYW",
+ "Levy Acquisition Corp.",
+ "0.6",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/levyw"
+ ],
+ [
+ "LFUS",
+ "Littelfuse, Inc.",
+ "98.71",
+ "$2.22B",
+ "n/a",
+ "Consumer Durables",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/lfus"
+ ],
+ [
+ "LFVN",
+ "Lifevantage Corporation",
+ "1",
+ "$98.22M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/lfvn"
+ ],
+ [
+ "LGCY",
+ "Legacy Reserves LP",
+ "12.84",
+ "$888.09M",
+ "2007",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/lgcy"
+ ],
+ [
+ "LGCYO",
+ "Legacy Reserves LP",
+ "20.6",
+ "$144.2M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/lgcyo"
+ ],
+ [
+ "LGCYP",
+ "Legacy Reserves LP",
+ "20.34",
+ "$40.68M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/lgcyp"
+ ],
+ [
+ "LGIH",
+ "LGI Homes, Inc.",
+ "13.7",
+ "$284.46M",
+ "2013",
+ "Capital Goods",
+ "Homebuilding",
+ "http://www.nasdaq.com/symbol/lgih"
+ ],
+ [
+ "LGND",
+ "Ligand Pharmaceuticals Incorporated",
+ "57.54",
+ "$1.13B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/lgnd"
+ ],
+ [
+ "LHCG",
+ "LHC Group",
+ "29.27",
+ "$520.96M",
+ "2005",
+ "Health Care",
+ "Medical/Nursing Services",
+ "http://www.nasdaq.com/symbol/lhcg"
+ ],
+ [
+ "LIME",
+ "Lime Energy Co.",
+ "2.4",
+ "$22.69M",
+ "n/a",
+ "Basic Industries",
+ "Engineering & Construction",
+ "http://www.nasdaq.com/symbol/lime"
+ ],
+ [
+ "LINC",
+ "Lincoln Educational Services Corporation",
+ "2.22",
+ "$53.4M",
+ "2005",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/linc"
+ ],
+ [
+ "LINE",
+ "Linn Energy, LLC",
+ "12.75",
+ "$4.28B",
+ "2006",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/line"
+ ],
+ [
+ "LION",
+ "Fidelity Southern Corporation",
+ "15.84",
+ "$337.83M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/lion"
+ ],
+ [
+ "LIOX",
+ "Lionbridge Technologies, Inc.",
+ "5.86",
+ "$373.77M",
+ "1999",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/liox"
+ ],
+ [
+ "LIQD",
+ "Liquid Holdings Group, Inc.",
+ "0.3625",
+ "$21.87M",
+ "2013",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/liqd"
+ ],
+ [
+ "LIVE",
+ "LiveDeal, Inc.",
+ "3.14",
+ "$50.22M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/live"
+ ],
+ [
+ "LJPC",
+ "La Jolla Pharmaceutical Company",
+ "18.69",
+ "$284.57M",
+ "1994",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/ljpc"
+ ],
+ [
+ "LKFN",
+ "Lakeland Financial Corporation",
+ "39.18",
+ "$648.35M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/lkfn"
+ ],
+ [
+ "LKQ",
+ "LKQ Corporation",
+ "27.38",
+ "$8.3B",
+ "n/a",
+ "Consumer Services",
+ "Motor Vehicles",
+ "http://www.nasdaq.com/symbol/lkq"
+ ],
+ [
+ "LLEX",
+ "Lilis Energy, Inc.",
+ "1.06",
+ "$29.34M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/llex"
+ ],
+ [
+ "LLNW",
+ "Limelight Networks, Inc.",
+ "3.25",
+ "$319.51M",
+ "2007",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/llnw"
+ ],
+ [
+ "LLTC",
+ "Linear Technology Corporation",
+ "48.25",
+ "$11.54B",
+ "1986",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/lltc"
+ ],
+ [
+ "LMAT",
+ "LeMaitre Vascular, Inc.",
+ "7.63",
+ "$132.54M",
+ "2006",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/lmat"
+ ],
+ [
+ "LMBS",
+ "First Trust Low Duration Mortgage Opportunities ETF",
+ "50.64",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/lmbs"
+ ],
+ [
+ "LMCA",
+ "Liberty Media Corporation",
+ "38.5",
+ "$13.21B",
+ "n/a",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/lmca"
+ ],
+ [
+ "LMCB",
+ "Liberty Media Corporation",
+ "39.391",
+ "$13.51B",
+ "n/a",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/lmcb"
+ ],
+ [
+ "LMCK",
+ "Liberty Media Corporation",
+ "38.49",
+ "$13.2B",
+ "n/a",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/lmck"
+ ],
+ [
+ "LMIA",
+ "LMI Aerospace, Inc.",
+ "14.38",
+ "$182.6M",
+ "1998",
+ "Capital Goods",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/lmia"
+ ],
+ [
+ "LMNR",
+ "Limoneira Co",
+ "20.66",
+ "$291.51M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/lmnr"
+ ],
+ [
+ "LMNS",
+ "Lumenis Ltd.",
+ "11.3",
+ "$398.23M",
+ "2014",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/lmns"
+ ],
+ [
+ "LMNX",
+ "Luminex Corporation",
+ "15.8",
+ "$676.76M",
+ "2000",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/lmnx"
+ ],
+ [
+ "LMOS",
+ "Lumos Networks Corp.",
+ "18.04",
+ "$405.4M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/lmos"
+ ],
+ [
+ "LMRK",
+ "Landmark Infrastructure Partners LP",
+ "16.66",
+ "$130.58M",
+ "2014",
+ "Consumer Services",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/lmrk"
+ ],
+ [
+ "LNBB",
+ "LNB Bancorp, Inc.",
+ "17.61",
+ "$170.21M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/lnbb"
+ ],
+ [
+ "LNCE",
+ "Snyder's-Lance, Inc.",
+ "30.77",
+ "$2.16B",
+ "n/a",
+ "Consumer Non-Durables",
+ "Specialty Foods",
+ "http://www.nasdaq.com/symbol/lnce"
+ ],
+ [
+ "LNCO",
+ "Linn Co, LLC",
+ "12.01",
+ "$1.54B",
+ "2012",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/lnco"
+ ],
+ [
+ "LNDC",
+ "Landec Corporation",
+ "14.16",
+ "$380.56M",
+ "1996",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/lndc"
+ ],
+ [
+ "LOAN",
+ "Manhattan Bridge Capital, Inc",
+ "3.52",
+ "$21.33M",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/loan"
+ ],
+ [
+ "LOCM",
+ "Local Corporation",
+ "0.6701",
+ "$15.57M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/locm"
+ ],
+ [
+ "LOCO",
+ "El Pollo Loco Holdings, Inc.",
+ "24.78",
+ "$915.59M",
+ "2014",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/loco"
+ ],
+ [
+ "LOGI",
+ "Logitech International S.A.",
+ "14.84",
+ "$2.44B",
+ "1997",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/logi"
+ ],
+ [
+ "LOGM",
+ "LogMein, Inc.",
+ "53.54",
+ "$1.31B",
+ "2009",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/logm"
+ ],
+ [
+ "LOJN",
+ "LoJack Corporation",
+ "2.47",
+ "$46.34M",
+ "n/a",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/lojn"
+ ],
+ [
+ "LONG",
+ "eLong, Inc.",
+ "16.71",
+ "$588.52M",
+ "2004",
+ "Consumer Services",
+ "Transportation Services",
+ "http://www.nasdaq.com/symbol/long"
+ ],
+ [
+ "LOOK",
+ "LookSmart, Ltd.",
+ "0.7132",
+ "$4.11M",
+ "1999",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/look"
+ ],
+ [
+ "LOPE",
+ "Grand Canyon Education, Inc.",
+ "46.68",
+ "$2.18B",
+ "2008",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/lope"
+ ],
+ [
+ "LORL",
+ "Loral Space and Communications, Inc.",
+ "72.67",
+ "$2.25B",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/lorl"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_16.json b/packages/flutter/example/stocks/data/stock_data_16.json
new file mode 100644
index 0000000..0a53a77
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_16.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "LOXO",
+ "Loxo Oncology, Inc.",
+ "13.66",
+ "$227.22M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/loxo"
+ ],
+ [
+ "LPCN",
+ "Lipocine Inc.",
+ "6.0801",
+ "$77.74M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/lpcn"
+ ],
+ [
+ "LPHI",
+ "Life Partners Holdings Inc",
+ "0.19",
+ "$3.54M",
+ "n/a",
+ "Finance",
+ "Life Insurance",
+ "http://www.nasdaq.com/symbol/lphi"
+ ],
+ [
+ "LPLA",
+ "LPL Financial Holdings Inc.",
+ "45.69",
+ "$4.51B",
+ "2010",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/lpla"
+ ],
+ [
+ "LPNT",
+ "LifePoint Hospitals, Inc.",
+ "70.18",
+ "$3.1B",
+ "n/a",
+ "Health Care",
+ "Hospital/Nursing Management",
+ "http://www.nasdaq.com/symbol/lpnt"
+ ],
+ [
+ "LPSB",
+ "LaPorte Bancorp, Inc.",
+ "13.05",
+ "$74.74M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/lpsb"
+ ],
+ [
+ "LPSN",
+ "LivePerson, Inc.",
+ "11.44",
+ "$625.23M",
+ "2000",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/lpsn"
+ ],
+ [
+ "LPTH",
+ "LightPath Technologies, Inc.",
+ "0.9921",
+ "$15.11M",
+ "1996",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/lpth"
+ ],
+ [
+ "LPTN",
+ "Lpath, Inc.",
+ "3.04",
+ "$58.6M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/lptn"
+ ],
+ [
+ "LQDT",
+ "Liquidity Services, Inc.",
+ "9.62",
+ "$288.39M",
+ "2006",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/lqdt"
+ ],
+ [
+ "LRAD",
+ "LRAD Corporation",
+ "2.62",
+ "$87.1M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Consumer Electronics/Appliances",
+ "http://www.nasdaq.com/symbol/lrad"
+ ],
+ [
+ "LRCX",
+ "Lam Research Corporation",
+ "83.84",
+ "$13.36B",
+ "1984",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/lrcx"
+ ],
+ [
+ "LSBK",
+ "Lake Shore Bancorp, Inc.",
+ "13.95",
+ "$82.85M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/lsbk"
+ ],
+ [
+ "LSCC",
+ "Lattice Semiconductor Corporation",
+ "6.33",
+ "$747.15M",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/lscc"
+ ],
+ [
+ "LSTR",
+ "Landstar System, Inc.",
+ "70.44",
+ "$3.15B",
+ "1993",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/lstr"
+ ],
+ [
+ "LTBR",
+ "Lightbridge Corporation",
+ "1.25",
+ "$22.6M",
+ "n/a",
+ "Consumer Services",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/ltbr"
+ ],
+ [
+ "LTRE",
+ "Learning Tree International, Inc.",
+ "1.75",
+ "$23.14M",
+ "1995",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/ltre"
+ ],
+ [
+ "LTRPA",
+ "Liberty TripAdvisor Holdings, Inc.",
+ "32.95",
+ "$2.33B",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/ltrpa"
+ ],
+ [
+ "LTRPB",
+ "Liberty TripAdvisor Holdings, Inc.",
+ "34.5",
+ "$2.54B",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/ltrpb"
+ ],
+ [
+ "LTRX",
+ "Lantronix, Inc.",
+ "1.8",
+ "$26.9M",
+ "2000",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/ltrx"
+ ],
+ [
+ "LTXB",
+ "LegacyTexas Financial Group, Inc.",
+ "22.5",
+ "$900.16M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/ltxb"
+ ],
+ [
+ "LULU",
+ "lululemon athletica inc.",
+ "67.37",
+ "$8.9B",
+ "2007",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/lulu"
+ ],
+ [
+ "LUNA",
+ "Luna Innovations Incorporated",
+ "1.4101",
+ "$21.22M",
+ "2006",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/luna"
+ ],
+ [
+ "LVNTA",
+ "Liberty Interactive Corporation",
+ "39.8",
+ "$5.63B",
+ "n/a",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/lvnta"
+ ],
+ [
+ "LVNTB",
+ "Liberty Interactive Corporation",
+ "39.9341",
+ "$5.64B",
+ "n/a",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/lvntb"
+ ],
+ [
+ "LWAY",
+ "Lifeway Foods, Inc.",
+ "19.43",
+ "$317.6M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/lway"
+ ],
+ [
+ "LXRX",
+ "Lexicon Pharmaceuticals, Inc.",
+ "0.93",
+ "$673.65M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/lxrx"
+ ],
+ [
+ "LYTS",
+ "LSI Industries Inc.",
+ "7.93",
+ "$191.48M",
+ "1985",
+ "Consumer Durables",
+ "Building Products",
+ "http://www.nasdaq.com/symbol/lyts"
+ ],
+ [
+ "MACK",
+ "Merrimack Pharmaceuticals, Inc.",
+ "11.01",
+ "$1.17B",
+ "2012",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/mack"
+ ],
+ [
+ "MAG",
+ "Magnetek, Inc.",
+ "39.04",
+ "$137.93M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/mag"
+ ],
+ [
+ "MAGS",
+ "Magal Security Systems Ltd.",
+ "5.16",
+ "$83.95M",
+ "1993",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/mags"
+ ],
+ [
+ "MAMS",
+ "MAM Software Group, Inc.",
+ "5.9324",
+ "$84.82M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/mams"
+ ],
+ [
+ "MANH",
+ "Manhattan Associates, Inc.",
+ "51.33",
+ "$3.81B",
+ "1998",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/manh"
+ ],
+ [
+ "MANT",
+ "ManTech International Corporation",
+ "33.59",
+ "$1.25B",
+ "2002",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/mant"
+ ],
+ [
+ "MAR",
+ "Marriott International",
+ "83",
+ "$22.95B",
+ "n/a",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/mar"
+ ],
+ [
+ "MARA",
+ "Marathon Patent Group, Inc.",
+ "7.04",
+ "$97.04M",
+ "n/a",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/mara"
+ ],
+ [
+ "MARK",
+ "Remark Media, Inc.",
+ "4.85",
+ "$62.33M",
+ "n/a",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/mark"
+ ],
+ [
+ "MARPS",
+ "Marine Petroleum Trust",
+ "13.25",
+ "$26.5M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/marps"
+ ],
+ [
+ "MASI",
+ "Masimo Corporation",
+ "29.9",
+ "$1.57B",
+ "2007",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/masi"
+ ],
+ [
+ "MAT",
+ "Mattel, Inc.",
+ "25.77",
+ "$8.73B",
+ "n/a",
+ "Consumer Non-Durables",
+ "Recreational Products/Toys",
+ "http://www.nasdaq.com/symbol/mat"
+ ],
+ [
+ "MATR",
+ "Mattersight Corporation",
+ "7.35",
+ "$163.43M",
+ "n/a",
+ "Consumer Services",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/matr"
+ ],
+ [
+ "MATW",
+ "Matthews International Corporation",
+ "48.59",
+ "$1.6B",
+ "1994",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/matw"
+ ],
+ [
+ "MAYS",
+ "J. W. Mays, Inc.",
+ "51",
+ "$102.8M",
+ "n/a",
+ "Consumer Services",
+ "Building operators",
+ "http://www.nasdaq.com/symbol/mays"
+ ],
+ [
+ "MBCN",
+ "Middlefield Banc Corp.",
+ "33.5999",
+ "$68.84M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mbcn"
+ ],
+ [
+ "MBFI",
+ "MB Financial Inc.",
+ "31.07",
+ "$2.32B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mbfi"
+ ],
+ [
+ "MBFIP",
+ "MB Financial Inc.",
+ "27.2701",
+ "$109.08M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mbfip"
+ ],
+ [
+ "MBII",
+ "Marrone Bio Innovations, Inc.",
+ "3.74",
+ "$91.25M",
+ "2013",
+ "Basic Industries",
+ "Agricultural Chemicals",
+ "http://www.nasdaq.com/symbol/mbii"
+ ],
+ [
+ "MBLX",
+ "Metabolix, Inc.",
+ "0.45",
+ "$60.83M",
+ "2006",
+ "Basic Industries",
+ "Containers/Packaging",
+ "http://www.nasdaq.com/symbol/mblx"
+ ],
+ [
+ "MBRG",
+ "Middleburg Financial Corporation",
+ "18.25",
+ "$130.01M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mbrg"
+ ],
+ [
+ "MBSD",
+ "Flexshares Trust-Flexshares Disciplined Duration Mbs Index Fun",
+ "25.3",
+ "$5.06M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/mbsd"
+ ],
+ [
+ "MBTF",
+ "M B T Financial Corp",
+ "5.38",
+ "$122.11M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mbtf"
+ ],
+ [
+ "MBUU",
+ "Malibu Boats, Inc.",
+ "19.7",
+ "$307.49M",
+ "2014",
+ "Capital Goods",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/mbuu"
+ ],
+ [
+ "MBVT",
+ "Merchants Bancshares, Inc.",
+ "28.74",
+ "$181.97M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mbvt"
+ ],
+ [
+ "MBWM",
+ "Mercantile Bank Corporation",
+ "19.21",
+ "$323.93M",
+ "1998",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mbwm"
+ ],
+ [
+ "MCBC",
+ "Macatawa Bank Corporation",
+ "5.44",
+ "$183.89M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mcbc"
+ ],
+ [
+ "MCBK",
+ "Madison County Financial, Inc.",
+ "21",
+ "$63.68M",
+ "2012",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/mcbk"
+ ],
+ [
+ "MCEP",
+ "Mid-Con Energy Partners, LP",
+ "6.07",
+ "$141.65M",
+ "2011",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/mcep"
+ ],
+ [
+ "MCGC",
+ "MCG Capital Corporation",
+ "3.97",
+ "$151.4M",
+ "2001",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/mcgc"
+ ],
+ [
+ "MCHP",
+ "Microchip Technology Incorporated",
+ "50.925",
+ "$10.26B",
+ "1993",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/mchp"
+ ],
+ [
+ "MCHX",
+ "Marchex, Inc.",
+ "4.15",
+ "$177.8M",
+ "2004",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/mchx"
+ ],
+ [
+ "MCOX",
+ "Mecox Lane Limited",
+ "3.86",
+ "$50.19M",
+ "2010",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/mcox"
+ ],
+ [
+ "MCRI",
+ "Monarch Casino & Resort, Inc.",
+ "18.27",
+ "$306.99M",
+ "1993",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/mcri"
+ ],
+ [
+ "MCRL",
+ "Micrel, Incorporated",
+ "14.79",
+ "$837.96M",
+ "1994",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/mcrl"
+ ],
+ [
+ "MCUR",
+ "MACROCURE LTD.",
+ "10.2",
+ "$166.26M",
+ "2014",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/mcur"
+ ],
+ [
+ "MDAS",
+ "MedAssets, Inc.",
+ "19.73",
+ "$1.19B",
+ "2007",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/mdas"
+ ],
+ [
+ "MDCA",
+ "MDC Partners Inc.",
+ "25.51",
+ "$1.27B",
+ "n/a",
+ "Technology",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/mdca"
+ ],
+ [
+ "MDCO",
+ "The Medicines Company",
+ "28.46",
+ "$1.86B",
+ "2000",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/mdco"
+ ],
+ [
+ "MDIV",
+ "First Trust Exchange-Traded Fund VI Multi-Asset Diversified In",
+ "21.44",
+ "$979.81M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/mdiv"
+ ],
+ [
+ "MDLZ",
+ "Mondelez International, Inc.",
+ "36.97",
+ "$62.11B",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/mdlz"
+ ],
+ [
+ "MDM",
+ "Mountain Province Diamonds Inc.",
+ "3.46",
+ "$467.81M",
+ "n/a",
+ "Basic Industries",
+ "Precious Metals",
+ "http://www.nasdaq.com/symbol/mdm"
+ ],
+ [
+ "MDRX",
+ "Allscripts Healthcare Solutions, Inc.",
+ "12.83",
+ "$2.31B",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/mdrx"
+ ],
+ [
+ "MDSO",
+ "Medidata Solutions, Inc.",
+ "47.42",
+ "$2.57B",
+ "2009",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/mdso"
+ ],
+ [
+ "MDSY",
+ "ModSys International Ltd.",
+ "2.6",
+ "$30.21M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/mdsy"
+ ],
+ [
+ "MDVN",
+ "Medivation, Inc.",
+ "110",
+ "$8.54B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/mdvn"
+ ],
+ [
+ "MDVX",
+ "Medovex Corp.",
+ "4.75",
+ "$43.57M",
+ "2015",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/mdvx"
+ ],
+ [
+ "MDVXW",
+ "Medovex Corp.",
+ "0.19",
+ "n/a",
+ "2015",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/mdvxw"
+ ],
+ [
+ "MDWD",
+ "MediWound Ltd.",
+ "7.52",
+ "$162.06M",
+ "2014",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/mdwd"
+ ],
+ [
+ "MDXG",
+ "MiMedx Group, Inc",
+ "9.855",
+ "$1.05B",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/mdxg"
+ ],
+ [
+ "MEET",
+ "MeetMe, Inc.",
+ "1.79",
+ "$80.33M",
+ "n/a",
+ "Consumer Services",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/meet"
+ ],
+ [
+ "MEIL",
+ "METHES ENERGIES INTERNATIONAL LTD",
+ "1.5999",
+ "$18.34M",
+ "2012",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/meil"
+ ],
+ [
+ "MEILW",
+ "METHES ENERGIES INTERNATIONAL LTD",
+ "0.0514",
+ "n/a",
+ "2012",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/meilw"
+ ],
+ [
+ "MEILZ",
+ "METHES ENERGIES INTERNATIONAL LTD",
+ "0.09",
+ "n/a",
+ "2012",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/meilz"
+ ],
+ [
+ "MEIP",
+ "MEI Pharma, Inc.",
+ "5.42",
+ "$180.44M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/meip"
+ ],
+ [
+ "MELA",
+ "MELA Sciences, Inc",
+ "2.09",
+ "$12.62M",
+ "2005",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/mela"
+ ],
+ [
+ "MELI",
+ "MercadoLibre, Inc.",
+ "130.92",
+ "$5.78B",
+ "2007",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/meli"
+ ],
+ [
+ "MELR",
+ "Melrose Bancorp, Inc.",
+ "13.49",
+ "$38.17M",
+ "2014",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/melr"
+ ],
+ [
+ "MEMP",
+ "Memorial Production Partners LP",
+ "17.41",
+ "$1.51B",
+ "2011",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/memp"
+ ],
+ [
+ "MENT",
+ "Mentor Graphics Corporation",
+ "25.3",
+ "$2.91B",
+ "1984",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/ment"
+ ],
+ [
+ "MEOH",
+ "Methanex Corporation",
+ "51.96",
+ "$4.81B",
+ "n/a",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/meoh"
+ ],
+ [
+ "MERC",
+ "Mercer International Inc.",
+ "14.42",
+ "$926.82M",
+ "n/a",
+ "Basic Industries",
+ "Paper",
+ "http://www.nasdaq.com/symbol/merc"
+ ],
+ [
+ "MERU",
+ "Meru Networks, Inc.",
+ "2.73",
+ "$64.97M",
+ "2010",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/meru"
+ ],
+ [
+ "METR",
+ "Metro Bancorp, Inc",
+ "25.43",
+ "$361.28M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/metr"
+ ],
+ [
+ "MFLX",
+ "Multi-Fineline Electronix, Inc.",
+ "17.93",
+ "$435.76M",
+ "2004",
+ "Technology",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/mflx"
+ ],
+ [
+ "MFNC",
+ "Mackinac Financial Corporation",
+ "11.6",
+ "$64.55M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mfnc"
+ ],
+ [
+ "MFRI",
+ "MFRI, Inc.",
+ "6.75",
+ "$49.21M",
+ "1989",
+ "Capital Goods",
+ "Pollution Control Equipment",
+ "http://www.nasdaq.com/symbol/mfri"
+ ],
+ [
+ "MFRM",
+ "Mattress Firm Holding Corp.",
+ "59.45",
+ "$2.08B",
+ "2011",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/mfrm"
+ ],
+ [
+ "MFSF",
+ "MutualFirst Financial Inc.",
+ "22.5",
+ "$161.98M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mfsf"
+ ],
+ [
+ "MGCD",
+ "MGC Diagnostics Corporation",
+ "7.1167",
+ "$30.39M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/mgcd"
+ ],
+ [
+ "MGEE",
+ "MGE Energy Inc.",
+ "43.41",
+ "$1.5B",
+ "n/a",
+ "Energy",
+ "Electric Utilities: Central",
+ "http://www.nasdaq.com/symbol/mgee"
+ ],
+ [
+ "MGI",
+ "Moneygram International, Inc.",
+ "8.53",
+ "$460.29M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/mgi"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_17.json b/packages/flutter/example/stocks/data/stock_data_17.json
new file mode 100644
index 0000000..c429e56
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_17.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "MGIC",
+ "Magic Software Enterprises Ltd.",
+ "6.87",
+ "$303.19M",
+ "1991",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/mgic"
+ ],
+ [
+ "MGLN",
+ "Magellan Health, Inc.",
+ "61.79",
+ "$1.71B",
+ "n/a",
+ "Health Care",
+ "Hospital/Nursing Management",
+ "http://www.nasdaq.com/symbol/mgln"
+ ],
+ [
+ "MGNX",
+ "MacroGenics, Inc.",
+ "35.86",
+ "$996.73M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/mgnx"
+ ],
+ [
+ "MGPI",
+ "MGP Ingredients, Inc.",
+ "14.47",
+ "$255.28M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Beverages (Production/Distribution)",
+ "http://www.nasdaq.com/symbol/mgpi"
+ ],
+ [
+ "MGRC",
+ "McGrath RentCorp",
+ "31.65",
+ "$821.63M",
+ "1984",
+ "Technology",
+ "Diversified Commercial Services",
+ "http://www.nasdaq.com/symbol/mgrc"
+ ],
+ [
+ "MGYR",
+ "Magyar Bancorp, Inc.",
+ "8.4",
+ "$48.85M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/mgyr"
+ ],
+ [
+ "MHGC",
+ "Morgans Hotel Group Co.",
+ "7.81",
+ "$268.49M",
+ "2006",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/mhgc"
+ ],
+ [
+ "MHLD",
+ "Maiden Holdings, Ltd.",
+ "14.47",
+ "$1.06B",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/mhld"
+ ],
+ [
+ "MHLDO",
+ "Maiden Holdings, Ltd.",
+ "51.99",
+ "$171.57M",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/mhldo"
+ ],
+ [
+ "MICT",
+ "Micronet Enertec Technologies, Inc.",
+ "3.27",
+ "$19.07M",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/mict"
+ ],
+ [
+ "MICTW",
+ "Micronet Enertec Technologies, Inc.",
+ "0.6501",
+ "n/a",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/mictw"
+ ],
+ [
+ "MIDD",
+ "The Middleby Corporation",
+ "109",
+ "$6.24B",
+ "n/a",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/midd"
+ ],
+ [
+ "MIFI",
+ "Novatel Wireless, Inc.",
+ "4.97",
+ "$221.85M",
+ "n/a",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/mifi"
+ ],
+ [
+ "MIK",
+ "The Michaels Companies, Inc.",
+ "27.84",
+ "$5.69B",
+ "2014",
+ "Consumer Services",
+ "Recreational Products/Toys",
+ "http://www.nasdaq.com/symbol/mik"
+ ],
+ [
+ "MIND",
+ "Mitcham Industries, Inc.",
+ "6.52",
+ "$78.79M",
+ "1994",
+ "Technology",
+ "Diversified Commercial Services",
+ "http://www.nasdaq.com/symbol/mind"
+ ],
+ [
+ "MINI",
+ "Mobile Mini, Inc.",
+ "41.79",
+ "$1.93B",
+ "1994",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/mini"
+ ],
+ [
+ "MITK",
+ "Mitek Systems, Inc.",
+ "3.4",
+ "$104.23M",
+ "n/a",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/mitk"
+ ],
+ [
+ "MITL",
+ "Mitel Networks Corporation",
+ "10.07",
+ "$1.01B",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/mitl"
+ ],
+ [
+ "MKSI",
+ "MKS Instruments, Inc.",
+ "35.8",
+ "$1.9B",
+ "1999",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/mksi"
+ ],
+ [
+ "MKTO",
+ "Marketo, Inc.",
+ "27.53",
+ "$1.13B",
+ "2013",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/mkto"
+ ],
+ [
+ "MKTX",
+ "MarketAxess Holdings, Inc.",
+ "78.97",
+ "$2.95B",
+ "2004",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/mktx"
+ ],
+ [
+ "MLAB",
+ "Mesa Laboratories, Inc.",
+ "73.33",
+ "$259.25M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/mlab"
+ ],
+ [
+ "MLHR",
+ "Herman Miller, Inc.",
+ "31.36",
+ "$1.87B",
+ "n/a",
+ "Consumer Durables",
+ "Office Equipment/Supplies/Services",
+ "http://www.nasdaq.com/symbol/mlhr"
+ ],
+ [
+ "MLNK",
+ "ModusLink Global Solutions, Inc",
+ "3.73",
+ "$194.79M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/mlnk"
+ ],
+ [
+ "MLNX",
+ "Mellanox Technologies, Ltd.",
+ "46.47",
+ "$2.1B",
+ "2007",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/mlnx"
+ ],
+ [
+ "MLVF",
+ "Malvern Bancorp, Inc.",
+ "12.32",
+ "$80.8M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/mlvf"
+ ],
+ [
+ "MMAC",
+ "MMA Capital Management, LLC",
+ "9.1601",
+ "$66.68M",
+ "n/a",
+ "Finance",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/mmac"
+ ],
+ [
+ "MMLP",
+ "Martin Midstream Partners L.P.",
+ "30.34",
+ "$1.07B",
+ "2002",
+ "Energy",
+ "Oil Refining/Marketing",
+ "http://www.nasdaq.com/symbol/mmlp"
+ ],
+ [
+ "MMSI",
+ "Merit Medical Systems, Inc.",
+ "17.84",
+ "$774.3M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/mmsi"
+ ],
+ [
+ "MMYT",
+ "MakeMyTrip Limited",
+ "25.02",
+ "$1.04B",
+ "2010",
+ "Consumer Services",
+ "Transportation Services",
+ "http://www.nasdaq.com/symbol/mmyt"
+ ],
+ [
+ "MNDO",
+ "MIND C.T.I. Ltd.",
+ "3.49",
+ "$66.08M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/mndo"
+ ],
+ [
+ "MNGA",
+ "MagneGas Corporation",
+ "0.8335",
+ "$30.49M",
+ "n/a",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/mnga"
+ ],
+ [
+ "MNKD",
+ "MannKind Corporation",
+ "6.9",
+ "$2.8B",
+ "2004",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/mnkd"
+ ],
+ [
+ "MNOV",
+ "MediciNova, Inc.",
+ "3.51",
+ "$85.01M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/mnov"
+ ],
+ [
+ "MNRK",
+ "Monarch Financial Holdings, Inc.",
+ "12.37",
+ "$131.7M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mnrk"
+ ],
+ [
+ "MNRO",
+ "Monro Muffler Brake, Inc.",
+ "63.33",
+ "$2.01B",
+ "1991",
+ "Consumer Services",
+ "Automotive Aftermarket",
+ "http://www.nasdaq.com/symbol/mnro"
+ ],
+ [
+ "MNST",
+ "Monster Beverage Corporation",
+ "121.26",
+ "$20.34B",
+ "n/a",
+ "Consumer Non-Durables",
+ "Beverages (Production/Distribution)",
+ "http://www.nasdaq.com/symbol/mnst"
+ ],
+ [
+ "MNTA",
+ "Momenta Pharmaceuticals, Inc.",
+ "13.01",
+ "$690.19M",
+ "2004",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/mnta"
+ ],
+ [
+ "MNTX",
+ "Manitex International, Inc.",
+ "11.36",
+ "$181.58M",
+ "n/a",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/mntx"
+ ],
+ [
+ "MOBI",
+ "Sky-mobi Limited",
+ "4.07",
+ "$112.38M",
+ "2010",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/mobi"
+ ],
+ [
+ "MOBL",
+ "MobileIron, Inc.",
+ "8.8",
+ "$668.62M",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/mobl"
+ ],
+ [
+ "MOCO",
+ "MOCON, Inc.",
+ "16.45",
+ "$93.33M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/moco"
+ ],
+ [
+ "MOFG",
+ "MidWestOne Financial Group, Inc.",
+ "28.26",
+ "$235.96M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mofg"
+ ],
+ [
+ "MOKO",
+ "Moko Social Media Ltd.",
+ "5.2",
+ "$78.07M",
+ "2014",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/moko"
+ ],
+ [
+ "MOLG",
+ "MOL Global, Inc.",
+ "2.52",
+ "$170.1M",
+ "2014",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/molg"
+ ],
+ [
+ "MOMO",
+ "Momo Inc.",
+ "11.5",
+ "$2.14B",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/momo"
+ ],
+ [
+ "MORN",
+ "Morningstar, Inc.",
+ "77.13",
+ "$3.44B",
+ "2005",
+ "Finance",
+ "Investment Managers",
+ "http://www.nasdaq.com/symbol/morn"
+ ],
+ [
+ "MOSY",
+ "MoSys, Inc.",
+ "1.94",
+ "$96.57M",
+ "2001",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/mosy"
+ ],
+ [
+ "MPAA",
+ "Motorcar Parts of America, Inc.",
+ "22.95",
+ "$412.24M",
+ "n/a",
+ "Capital Goods",
+ "Auto Parts:O.E.M.",
+ "http://www.nasdaq.com/symbol/mpaa"
+ ],
+ [
+ "MPB",
+ "Mid Penn Bancorp",
+ "15.57",
+ "$54.45M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mpb"
+ ],
+ [
+ "MPEL",
+ "Melco Crown Entertainment Limited",
+ "27.46",
+ "$15.13B",
+ "2006",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/mpel"
+ ],
+ [
+ "MPET",
+ "Magellan Petroleum Corporation",
+ "0.879",
+ "$40.17M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/mpet"
+ ],
+ [
+ "MPWR",
+ "Monolithic Power Systems, Inc.",
+ "51.99",
+ "$2.01B",
+ "2004",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/mpwr"
+ ],
+ [
+ "MRCC",
+ "Monroe Capital Corporation",
+ "14.74",
+ "$140.29M",
+ "2012",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/mrcc"
+ ],
+ [
+ "MRCY",
+ "Mercury Systems Inc",
+ "17.06",
+ "$582.59M",
+ "1998",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/mrcy"
+ ],
+ [
+ "MRD",
+ "Memorial Resource Development Corp.",
+ "19.3",
+ "$3.74B",
+ "2014",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/mrd"
+ ],
+ [
+ "MRGE",
+ "Merge Healthcare Incorporated.",
+ "4.47",
+ "$440.75M",
+ "1998",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/mrge"
+ ],
+ [
+ "MRKT",
+ "Markit Ltd.",
+ "26.35",
+ "$4.79B",
+ "2014",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/mrkt"
+ ],
+ [
+ "MRLN",
+ "Marlin Business Services Corp.",
+ "18.83",
+ "$241.41M",
+ "2003",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/mrln"
+ ],
+ [
+ "MRNS",
+ "Marinus Pharmaceuticals, Inc.",
+ "11.65",
+ "$163.19M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/mrns"
+ ],
+ [
+ "MRTN",
+ "Marten Transport, Ltd.",
+ "23.01",
+ "$768.67M",
+ "1986",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/mrtn"
+ ],
+ [
+ "MRTX",
+ "Mirati Therapeutics, Inc.",
+ "23.7",
+ "$382.15M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/mrtx"
+ ],
+ [
+ "MRVC",
+ "MRV Communications, Inc.",
+ "9.951",
+ "$73.26M",
+ "1992",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/mrvc"
+ ],
+ [
+ "MRVL",
+ "Marvell Technology Group Ltd.",
+ "16.29",
+ "$8.33B",
+ "2000",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/mrvl"
+ ],
+ [
+ "MSBF",
+ "MSB Financial Corp.",
+ "10.7199",
+ "$53.71M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/msbf"
+ ],
+ [
+ "MSCC",
+ "Microsemi Corporation",
+ "31.14",
+ "$2.96B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/mscc"
+ ],
+ [
+ "MSEX",
+ "Middlesex Water Company",
+ "22.7",
+ "$365.73M",
+ "n/a",
+ "Public Utilities",
+ "Water Supply",
+ "http://www.nasdaq.com/symbol/msex"
+ ],
+ [
+ "MSFG",
+ "MainSource Financial Group, Inc.",
+ "19.14",
+ "$415.09M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/msfg"
+ ],
+ [
+ "MSFT",
+ "Microsoft Corporation",
+ "43.855",
+ "$359.78B",
+ "1986",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/msft"
+ ],
+ [
+ "MSG",
+ "The Madison Square Garden Company",
+ "78.53",
+ "$6.03B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/msg"
+ ],
+ [
+ "MSLI",
+ "Merus Labs International Inc.",
+ "1.88",
+ "$152.68M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/msli"
+ ],
+ [
+ "MSON",
+ "MISONIX, Inc.",
+ "12.25",
+ "$93.55M",
+ "1992",
+ "Capital Goods",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/mson"
+ ],
+ [
+ "MSTR",
+ "MicroStrategy Incorporated",
+ "179.55",
+ "$2.03B",
+ "1998",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/mstr"
+ ],
+ [
+ "MTBC",
+ "Medical Transcription Billing, Corp.",
+ "2.6999",
+ "$29.7M",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/mtbc"
+ ],
+ [
+ "MTEX",
+ "Mannatech, Incorporated",
+ "23.3",
+ "$62.17M",
+ "n/a",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/mtex"
+ ],
+ [
+ "MTGE",
+ "American Capital Mortgage Investment Corp.",
+ "18.27",
+ "$934.37M",
+ "2011",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/mtge"
+ ],
+ [
+ "MTGEP",
+ "American Capital Mortgage Investment Corp.",
+ "25.24",
+ "$50.48M",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/mtgep"
+ ],
+ [
+ "MTLS",
+ "Materialise NV",
+ "8",
+ "$376.58M",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/mtls"
+ ],
+ [
+ "MTRX",
+ "Matrix Service Company",
+ "18.67",
+ "$498.69M",
+ "1990",
+ "Basic Industries",
+ "Engineering & Construction",
+ "http://www.nasdaq.com/symbol/mtrx"
+ ],
+ [
+ "MTSC",
+ "MTS Systems Corporation",
+ "72.06",
+ "$1.08B",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/mtsc"
+ ],
+ [
+ "MTSI",
+ "M/A-COM Technology Solutions Holdings, Inc.",
+ "34.25",
+ "$1.83B",
+ "2012",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/mtsi"
+ ],
+ [
+ "MTSL",
+ "MER Telemanagement Solutions Ltd.",
+ "1.6",
+ "$7.45M",
+ "1997",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/mtsl"
+ ],
+ [
+ "MTSN",
+ "Mattson Technology, Inc.",
+ "4.62",
+ "$340.97M",
+ "1994",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/mtsn"
+ ],
+ [
+ "MU",
+ "Micron Technology, Inc.",
+ "32.03",
+ "$34.51B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/mu"
+ ],
+ [
+ "MULT",
+ "Advisorshares Trust-Advisorshares Sunrise Global Multi-Strateg",
+ "23.25",
+ "$2.33M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/mult"
+ ],
+ [
+ "MVIS",
+ "Microvision, Inc.",
+ "2",
+ "$88.9M",
+ "1996",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/mvis"
+ ],
+ [
+ "MWIV",
+ "MWI Veterinary Supply, Inc.",
+ "189.9",
+ "$2.45B",
+ "2005",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/mwiv"
+ ],
+ [
+ "MXIM",
+ "Maxim Integrated Products, Inc.",
+ "34.6",
+ "$9.79B",
+ "1988",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/mxim"
+ ],
+ [
+ "MXWL",
+ "Maxwell Technologies, Inc.",
+ "6.87",
+ "$205.35M",
+ "n/a",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/mxwl"
+ ],
+ [
+ "MYGN",
+ "Myriad Genetics, Inc.",
+ "34.32",
+ "$2.44B",
+ "1995",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/mygn"
+ ],
+ [
+ "MYL",
+ "Mylan Inc.",
+ "57.87",
+ "$21.66B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/myl"
+ ],
+ [
+ "MYOS",
+ "MYOS Corporation",
+ "5.46",
+ "$15.89M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/myos"
+ ],
+ [
+ "MYRG",
+ "MYR Group, Inc.",
+ "26.24",
+ "$545.25M",
+ "n/a",
+ "Basic Industries",
+ "Water Supply",
+ "http://www.nasdaq.com/symbol/myrg"
+ ],
+ [
+ "MZOR",
+ "Mazor Robotics Ltd.",
+ "11.5",
+ "$240.6M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/mzor"
+ ],
+ [
+ "NAII",
+ "Natural Alternatives International, Inc.",
+ "5.28",
+ "$36.53M",
+ "n/a",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/naii"
+ ],
+ [
+ "NAME",
+ "Rightside Group, Ltd.",
+ "7.3",
+ "$135M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/name"
+ ],
+ [
+ "NANO",
+ "Nanometrics Incorporated",
+ "17.39",
+ "$420.11M",
+ "1984",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/nano"
+ ],
+ [
+ "NATH",
+ "Nathan's Famous, Inc.",
+ "76.25",
+ "$342.87M",
+ "1993",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/nath"
+ ],
+ [
+ "NATI",
+ "National Instruments Corporation",
+ "31.3",
+ "$4.01B",
+ "1995",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/nati"
+ ],
+ [
+ "NATL",
+ "National Interstate Corporation",
+ "26.19",
+ "$518.07M",
+ "2005",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/natl"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_18.json b/packages/flutter/example/stocks/data/stock_data_18.json
new file mode 100644
index 0000000..cc07d8a
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_18.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "NATR",
+ "Nature's Sunshine Products, Inc.",
+ "13.85",
+ "$259.57M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/natr"
+ ],
+ [
+ "NAUH",
+ "National American University Holdings, Inc.",
+ "3.2716",
+ "$82.39M",
+ "n/a",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/nauh"
+ ],
+ [
+ "NAVG",
+ "The Navigators Group, Inc.",
+ "72.62",
+ "$1.04B",
+ "1986",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/navg"
+ ],
+ [
+ "NAVI",
+ "Navient Corporation",
+ "21.72",
+ "$8.91B",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/navi"
+ ],
+ [
+ "NBBC",
+ "NewBridge Bancorp",
+ "8.62",
+ "$320.63M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/nbbc"
+ ],
+ [
+ "NBIX",
+ "Neurocrine Biosciences, Inc.",
+ "39.4",
+ "$3.04B",
+ "1996",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/nbix"
+ ],
+ [
+ "NBN",
+ "Northeast Bancorp",
+ "9.18",
+ "$90.32M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/nbn"
+ ],
+ [
+ "NBS",
+ "Neostem, Inc.",
+ "4.07",
+ "$145.46M",
+ "n/a",
+ "Health Care",
+ "Hospital/Nursing Management",
+ "http://www.nasdaq.com/symbol/nbs"
+ ],
+ [
+ "NBTB",
+ "NBT Bancorp Inc.",
+ "24.35",
+ "$1.06B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/nbtb"
+ ],
+ [
+ "NBTF",
+ "NB&T FINANCIAL GROUP INC",
+ "29.96",
+ "$102.87M",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/nbtf"
+ ],
+ [
+ "NCIT",
+ "NCI, Inc.",
+ "11.75",
+ "$152.82M",
+ "2005",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/ncit"
+ ],
+ [
+ "NCLH",
+ "Norwegian Cruise Line Holdings Ltd.",
+ "47.77",
+ "$9.71B",
+ "2013",
+ "Consumer Services",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/nclh"
+ ],
+ [
+ "NCMI",
+ "National CineMedia, Inc.",
+ "15",
+ "$913.06M",
+ "2007",
+ "Consumer Services",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/ncmi"
+ ],
+ [
+ "NCTY",
+ "The9 Limited",
+ "1.49",
+ "$34.49M",
+ "2004",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/ncty"
+ ],
+ [
+ "NDAQ",
+ "The NASDAQ OMX Group, Inc.",
+ "50.94",
+ "$8.6B",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/ndaq"
+ ],
+ [
+ "NDLS",
+ "Noodles & Company",
+ "18.9",
+ "$563.02M",
+ "2013",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/ndls"
+ ],
+ [
+ "NDRM",
+ "NeuroDerm Ltd.",
+ "11.58",
+ "$196.82M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ndrm"
+ ],
+ [
+ "NDSN",
+ "Nordson Corporation",
+ "78.46",
+ "$4.86B",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/ndsn"
+ ],
+ [
+ "NECB",
+ "Northeast Community Bancorp, Inc.",
+ "6.92",
+ "$85.64M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/necb"
+ ],
+ [
+ "NEO",
+ "NeoGenomics, Inc.",
+ "4.44",
+ "$266.27M",
+ "n/a",
+ "Health Care",
+ "Precision Instruments",
+ "http://www.nasdaq.com/symbol/neo"
+ ],
+ [
+ "NEOG",
+ "Neogen Corporation",
+ "49.34",
+ "$1.82B",
+ "1989",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/neog"
+ ],
+ [
+ "NEON",
+ "Neonode Inc.",
+ "3.01",
+ "$121.77M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/neon"
+ ],
+ [
+ "NEOT",
+ "Neothetics, Inc.",
+ "6.805",
+ "$92.69M",
+ "1996",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/neot"
+ ],
+ [
+ "NEPT",
+ "Neptune Technologies & Bioresources Inc",
+ "1.82",
+ "$136.93M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/nept"
+ ],
+ [
+ "NERV",
+ "Minerva Neurosciences, Inc",
+ "5.32",
+ "$98.1M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/nerv"
+ ],
+ [
+ "NETE",
+ "Net Element, Inc.",
+ "1.25",
+ "$57.03M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/nete"
+ ],
+ [
+ "NEWP",
+ "Newport Corporation",
+ "20.11",
+ "$801.33M",
+ "n/a",
+ "Capital Goods",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/newp"
+ ],
+ [
+ "NEWS",
+ "NewStar Financial, Inc.",
+ "9.87",
+ "$469.84M",
+ "2006",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/news"
+ ],
+ [
+ "NEWT",
+ "Newtek Business Services Corp.",
+ "16.1",
+ "$121.86M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/newt"
+ ],
+ [
+ "NFBK",
+ "Northfield Bancorp, Inc.",
+ "14.445",
+ "$707.53M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/nfbk"
+ ],
+ [
+ "NFEC",
+ "NF Energy Saving Corporation",
+ "2.09",
+ "$11.95M",
+ "n/a",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/nfec"
+ ],
+ [
+ "NFLX",
+ "Netflix, Inc.",
+ "478.2",
+ "$28.93B",
+ "2002",
+ "Consumer Services",
+ "Consumer Electronics/Video Chains",
+ "http://www.nasdaq.com/symbol/nflx"
+ ],
+ [
+ "NGHC",
+ "National General Holdings Corp",
+ "18.4",
+ "$1.72B",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/nghc"
+ ],
+ [
+ "NGHCP",
+ "National General Holdings Corp",
+ "25.62",
+ "$56.36M",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/nghcp"
+ ],
+ [
+ "NHTB",
+ "New Hampshire Thrift Bancshares, Inc.",
+ "15.43",
+ "$127.42M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/nhtb"
+ ],
+ [
+ "NHTC",
+ "Natural Health Trends Corp.",
+ "13.5",
+ "$172.84M",
+ "n/a",
+ "Consumer Durables",
+ "Consumer Specialties",
+ "http://www.nasdaq.com/symbol/nhtc"
+ ],
+ [
+ "NICE",
+ "NICE-Systems Limited",
+ "58.88",
+ "$3.54B",
+ "n/a",
+ "Technology",
+ "Computer Manufacturing",
+ "http://www.nasdaq.com/symbol/nice"
+ ],
+ [
+ "NICK",
+ "Nicholas Financial, Inc.",
+ "14.89",
+ "$183.31M",
+ "n/a",
+ "Finance",
+ "Finance Companies",
+ "http://www.nasdaq.com/symbol/nick"
+ ],
+ [
+ "NILE",
+ "Blue Nile, Inc.",
+ "29.27",
+ "$346.72M",
+ "2004",
+ "Consumer Services",
+ "Consumer Specialties",
+ "http://www.nasdaq.com/symbol/nile"
+ ],
+ [
+ "NKSH",
+ "National Bankshares, Inc.",
+ "29.72",
+ "$206.57M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/nksh"
+ ],
+ [
+ "NKTR",
+ "Nektar Therapeutics",
+ "13.61",
+ "$1.75B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/nktr"
+ ],
+ [
+ "NLNK",
+ "NewLink Genetics Corporation",
+ "39.75",
+ "$1.11B",
+ "2011",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/nlnk"
+ ],
+ [
+ "NLST",
+ "Netlist, Inc.",
+ "1.43",
+ "$59.35M",
+ "2006",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/nlst"
+ ],
+ [
+ "NMIH",
+ "NMI Holdings Inc",
+ "7.54",
+ "$440.06M",
+ "2013",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/nmih"
+ ],
+ [
+ "NMRX",
+ "Numerex Corp.",
+ "11.3",
+ "$214.43M",
+ "n/a",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/nmrx"
+ ],
+ [
+ "NNBR",
+ "NN, Inc.",
+ "27.1",
+ "$513.74M",
+ "1994",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/nnbr"
+ ],
+ [
+ "NPBC",
+ "National Penn Bancshares, Inc.",
+ "10.64",
+ "$1.57B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/npbc"
+ ],
+ [
+ "NPSP",
+ "NPS Pharmaceuticals, Inc.",
+ "45.97",
+ "$4.99B",
+ "1994",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/npsp"
+ ],
+ [
+ "NRCIA",
+ "National Research Corporation",
+ "14.04",
+ "$342.21M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/nrcia"
+ ],
+ [
+ "NRCIB",
+ "National Research Corporation",
+ "33.02",
+ "$804.84M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/nrcib"
+ ],
+ [
+ "NRIM",
+ "Northrim BanCorp Inc",
+ "22.36",
+ "$152.81M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/nrim"
+ ],
+ [
+ "NRX",
+ "NephroGenex, Inc.",
+ "6.3",
+ "$55.83M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/nrx"
+ ],
+ [
+ "NSEC",
+ "National Security Group, Inc.",
+ "13.11",
+ "$32.87M",
+ "n/a",
+ "Finance",
+ "Life Insurance",
+ "http://www.nasdaq.com/symbol/nsec"
+ ],
+ [
+ "NSIT",
+ "Insight Enterprises, Inc.",
+ "26.1",
+ "$1.07B",
+ "1995",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/nsit"
+ ],
+ [
+ "NSPH",
+ "Nanosphere, Inc.",
+ "0.2935",
+ "$34.43M",
+ "2007",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/nsph"
+ ],
+ [
+ "NSSC",
+ "NAPCO Security Technologies, Inc.",
+ "5.36",
+ "$102.24M",
+ "n/a",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/nssc"
+ ],
+ [
+ "NSTG",
+ "NanoString Technologies, Inc.",
+ "12.28",
+ "$223.53M",
+ "2013",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/nstg"
+ ],
+ [
+ "NSYS",
+ "Nortech Systems Incorporated",
+ "5.58",
+ "$15.31M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/nsys"
+ ],
+ [
+ "NTAP",
+ "NetApp, Inc.",
+ "38.2",
+ "$11.91B",
+ "1995",
+ "Technology",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/ntap"
+ ],
+ [
+ "NTCT",
+ "NetScout Systems, Inc.",
+ "39.13",
+ "$1.61B",
+ "1999",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/ntct"
+ ],
+ [
+ "NTES",
+ "NetEase, Inc.",
+ "110.08",
+ "$14.31B",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/ntes"
+ ],
+ [
+ "NTGR",
+ "NETGEAR, Inc.",
+ "32.22",
+ "$1.11B",
+ "2003",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/ntgr"
+ ],
+ [
+ "NTIC",
+ "Northern Technologies International Corporation",
+ "20.9",
+ "$94.51M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/ntic"
+ ],
+ [
+ "NTK",
+ "Nortek Inc.",
+ "80.31",
+ "$1.3B",
+ "n/a",
+ "Consumer Durables",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/ntk"
+ ],
+ [
+ "NTLS",
+ "NTELOS Holdings Corp.",
+ "4.97",
+ "$107.38M",
+ "2006",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/ntls"
+ ],
+ [
+ "NTRI",
+ "NutriSystem Inc",
+ "17.56",
+ "$505.24M",
+ "n/a",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/ntri"
+ ],
+ [
+ "NTRS",
+ "Northern Trust Corporation",
+ "70.08",
+ "$16.5B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ntrs"
+ ],
+ [
+ "NTRSP",
+ "Northern Trust Corporation",
+ "25.61",
+ "$409.76M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ntrsp"
+ ],
+ [
+ "NTWK",
+ "NetSol Technologies Inc.",
+ "5.8",
+ "$56.99M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/ntwk"
+ ],
+ [
+ "NUAN",
+ "Nuance Communications, Inc.",
+ "14.025",
+ "$4.56B",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/nuan"
+ ],
+ [
+ "NURO",
+ "NeuroMetrix, Inc.",
+ "1.72",
+ "$13.66M",
+ "2004",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/nuro"
+ ],
+ [
+ "NUTR",
+ "Nutraceutical International Corporation",
+ "17.82",
+ "$171.7M",
+ "1998",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/nutr"
+ ],
+ [
+ "NUVA",
+ "NuVasive, Inc.",
+ "47.98",
+ "$2.26B",
+ "2004",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/nuva"
+ ],
+ [
+ "NVAX",
+ "Novavax, Inc.",
+ "9.51",
+ "$2.27B",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/nvax"
+ ],
+ [
+ "NVCN",
+ "Neovasc Inc.",
+ "9.54",
+ "$613.02M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/nvcn"
+ ],
+ [
+ "NVDA",
+ "NVIDIA Corporation",
+ "22.335",
+ "$12.14B",
+ "1999",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/nvda"
+ ],
+ [
+ "NVDQ",
+ "Novadaq Technologies Inc",
+ "15.35",
+ "$853.04M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/nvdq"
+ ],
+ [
+ "NVEC",
+ "NVE Corporation",
+ "63.38",
+ "$307.9M",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/nvec"
+ ],
+ [
+ "NVEE",
+ "NV5 Holdings, Inc.",
+ "12.3",
+ "$70.75M",
+ "2013",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/nvee"
+ ],
+ [
+ "NVET",
+ "Nexvet Biopharma plc",
+ "9.5",
+ "$105.26M",
+ "2015",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/nvet"
+ ],
+ [
+ "NVFY",
+ "Nova Lifestyle, Inc",
+ "2.5997",
+ "$54.04M",
+ "n/a",
+ "Consumer Durables",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/nvfy"
+ ],
+ [
+ "NVGN",
+ "Novogen Limited",
+ "2.76",
+ "$18.61M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/nvgn"
+ ],
+ [
+ "NVMI",
+ "Nova Measuring Instruments Ltd.",
+ "11.45",
+ "$317.49M",
+ "2000",
+ "Capital Goods",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/nvmi"
+ ],
+ [
+ "NVSL",
+ "Naugatuck Valley Financial Corporation",
+ "9.089",
+ "$63.64M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/nvsl"
+ ],
+ [
+ "NWBI",
+ "Northwest Bancshares, Inc.",
+ "11.76",
+ "$1.12B",
+ "2009",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/nwbi"
+ ],
+ [
+ "NWBO",
+ "Northwest Biotherapeutics, Inc.",
+ "6.37",
+ "$396.33M",
+ "2012",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/nwbo"
+ ],
+ [
+ "NWBOW",
+ "Northwest Biotherapeutics, Inc.",
+ "3.2499",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/nwbow"
+ ],
+ [
+ "NWFL",
+ "Norwood Financial Corp.",
+ "28.6001",
+ "$104.27M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/nwfl"
+ ],
+ [
+ "NWLI",
+ "National Western Life Insurance Company",
+ "252.91",
+ "$919.62M",
+ "n/a",
+ "Finance",
+ "Life Insurance",
+ "http://www.nasdaq.com/symbol/nwli"
+ ],
+ [
+ "NWPX",
+ "Northwest Pipe Company",
+ "25.11",
+ "$239.05M",
+ "1995",
+ "Basic Industries",
+ "Steel/Iron Ore",
+ "http://www.nasdaq.com/symbol/nwpx"
+ ],
+ [
+ "NWS",
+ "News Corporation",
+ "16.67",
+ "$9.68B",
+ "n/a",
+ "Consumer Services",
+ "Newspapers/Magazines",
+ "http://www.nasdaq.com/symbol/nws"
+ ],
+ [
+ "NWSA",
+ "News Corporation",
+ "17.14",
+ "$9.95B",
+ "n/a",
+ "Consumer Services",
+ "Newspapers/Magazines",
+ "http://www.nasdaq.com/symbol/nwsa"
+ ],
+ [
+ "NXPI",
+ "NXP Semiconductors N.V.",
+ "84.66",
+ "$19.54B",
+ "2010",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/nxpi"
+ ],
+ [
+ "NXST",
+ "Nexstar Broadcasting Group, Inc.",
+ "54.21",
+ "$1.67B",
+ "2003",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/nxst"
+ ],
+ [
+ "NXTD",
+ "NXT-ID Inc.",
+ "2.67",
+ "$65.93M",
+ "n/a",
+ "Consumer Services",
+ "Diversified Commercial Services",
+ "http://www.nasdaq.com/symbol/nxtd"
+ ],
+ [
+ "NXTDW",
+ "NXT-ID Inc.",
+ "1",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Diversified Commercial Services",
+ "http://www.nasdaq.com/symbol/nxtdw"
+ ],
+ [
+ "NXTM",
+ "NxStage Medical, Inc.",
+ "17.77",
+ "$1.1B",
+ "2005",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/nxtm"
+ ],
+ [
+ "NYMT",
+ "New York Mortgage Trust, Inc.",
+ "7.79",
+ "$706.43M",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/nymt"
+ ],
+ [
+ "NYMTP",
+ "New York Mortgage Trust, Inc.",
+ "24.68",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/nymtp"
+ ],
+ [
+ "NYMX",
+ "Nymox Pharmaceutical Corporation",
+ "0.41",
+ "$14.68M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/nymx"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_19.json b/packages/flutter/example/stocks/data/stock_data_19.json
new file mode 100644
index 0000000..46ed9ce
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_19.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "NYNY",
+ "Empire Resorts, Inc.",
+ "6.2",
+ "$244.94M",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/nyny"
+ ],
+ [
+ "OBAS",
+ "Optibase Ltd.",
+ "6.18",
+ "$32.03M",
+ "1999",
+ "Finance",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/obas"
+ ],
+ [
+ "OBCI",
+ "Ocean Bio-Chem, Inc.",
+ "5.36",
+ "$47.78M",
+ "n/a",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/obci"
+ ],
+ [
+ "OCC",
+ "Optical Cable Corporation",
+ "5.13",
+ "$35.09M",
+ "n/a",
+ "Basic Industries",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/occ"
+ ],
+ [
+ "OCFC",
+ "OceanFirst Financial Corp.",
+ "16.84",
+ "$295.93M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/ocfc"
+ ],
+ [
+ "OCLR",
+ "Oclaro, Inc.",
+ "1.51",
+ "$164.62M",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/oclr"
+ ],
+ [
+ "OCLS",
+ "Oculus Innovative Sciences, Inc.",
+ "0.913",
+ "$13.61M",
+ "2007",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/ocls"
+ ],
+ [
+ "OCLSW",
+ "Oculus Innovative Sciences, Inc.",
+ "0.265",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/oclsw"
+ ],
+ [
+ "OCRX",
+ "Ocera Therapeutics, Inc.",
+ "6",
+ "$118.45M",
+ "2011",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ocrx"
+ ],
+ [
+ "OCUL",
+ "Ocular Therapeutix, Inc.",
+ "31.37",
+ "$668.88M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ocul"
+ ],
+ [
+ "ODFL",
+ "Old Dominion Freight Line, Inc.",
+ "77.775",
+ "$6.7B",
+ "1991",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/odfl"
+ ],
+ [
+ "ODP",
+ "Office Depot, Inc.",
+ "9.49",
+ "$5.11B",
+ "n/a",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/odp"
+ ],
+ [
+ "OFED",
+ "Oconee Federal Financial Corp.",
+ "20.6526",
+ "$120.5M",
+ "2011",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/ofed"
+ ],
+ [
+ "OFIX",
+ "Orthofix International N.V.",
+ "31.99",
+ "$589.78M",
+ "1992",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/ofix"
+ ],
+ [
+ "OFLX",
+ "Omega Flex, Inc.",
+ "30.84",
+ "$311.23M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/oflx"
+ ],
+ [
+ "OFS",
+ "OFS Capital Corporation",
+ "11.6701",
+ "$112.48M",
+ "2012",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ofs"
+ ],
+ [
+ "OGXI",
+ "OncoGenex Pharmaceuticals Inc.",
+ "2.27",
+ "$48.31M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/ogxi"
+ ],
+ [
+ "OHAI",
+ "OHA Investment Corporation",
+ "4.75",
+ "$97.93M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ohai"
+ ],
+ [
+ "OHGI",
+ "One Horizon Group, Inc.",
+ "1.7966",
+ "$59.15M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/ohgi"
+ ],
+ [
+ "OHRP",
+ "Ohr Pharmaceuticals, Inc.",
+ "7.15",
+ "$212.01M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ohrp"
+ ],
+ [
+ "OIIM",
+ "O2Micro International Limited",
+ "2.54",
+ "$67.42M",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/oiim"
+ ],
+ [
+ "OKSB",
+ "Southwest Bancorp, Inc.",
+ "16.62",
+ "$323.36M",
+ "1993",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/oksb"
+ ],
+ [
+ "OLBK",
+ "Old Line Bancshares, Inc.",
+ "14.4",
+ "$155.4M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/olbk"
+ ],
+ [
+ "OLED",
+ "Universal Display Corporation",
+ "35.94",
+ "$1.64B",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/oled"
+ ],
+ [
+ "OMAB",
+ "Grupo Aeroportuario del Centro Norte S.A.B. de C.V.",
+ "37.69",
+ "$1.86B",
+ "2006",
+ "Transportation",
+ "Aerospace",
+ "http://www.nasdaq.com/symbol/omab"
+ ],
+ [
+ "OMCL",
+ "Omnicell, Inc.",
+ "35.21",
+ "$1.25B",
+ "2001",
+ "Technology",
+ "Computer Manufacturing",
+ "http://www.nasdaq.com/symbol/omcl"
+ ],
+ [
+ "OMED",
+ "OncoMed Pharmaceuticals, Inc.",
+ "27.05",
+ "$806.96M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/omed"
+ ],
+ [
+ "OMER",
+ "Omeros Corporation",
+ "21.25",
+ "$799.56M",
+ "2009",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/omer"
+ ],
+ [
+ "OMEX",
+ "Odyssey Marine Exploration, Inc.",
+ "0.7494",
+ "$63.94M",
+ "n/a",
+ "Consumer Services",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/omex"
+ ],
+ [
+ "ONB",
+ "Old National Bancorp",
+ "14.03",
+ "$1.6B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/onb"
+ ],
+ [
+ "ONCE",
+ "Spark Therapeutics, Inc.",
+ "51.44",
+ "$1.21B",
+ "2015",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/once"
+ ],
+ [
+ "ONCY",
+ "Oncolytics Biotech, Inc.",
+ "0.665",
+ "$62.19M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/oncy"
+ ],
+ [
+ "ONEQ",
+ "Fidelity Nasdaq Composite Tracker Stock",
+ "194.5468",
+ "$447.46M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/oneq"
+ ],
+ [
+ "ONFC",
+ "Oneida Financial Corp.",
+ "13.12",
+ "$92.13M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/onfc"
+ ],
+ [
+ "ONNN",
+ "ON Semiconductor Corporation",
+ "12.02",
+ "$5.24B",
+ "2000",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/onnn"
+ ],
+ [
+ "ONTX",
+ "Onconova Therapeutics, Inc.",
+ "2.38",
+ "$51.63M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ontx"
+ ],
+ [
+ "ONTY",
+ "Oncothyreon Inc.",
+ "1.55",
+ "$141.91M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/onty"
+ ],
+ [
+ "ONVI",
+ "Onvia, Inc.",
+ "4.51",
+ "$33.36M",
+ "2000",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/onvi"
+ ],
+ [
+ "OPB",
+ "Opus Bank",
+ "28.49",
+ "$800.6M",
+ "2014",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/opb"
+ ],
+ [
+ "OPHC",
+ "OptimumBank Holdings, Inc.",
+ "1.043",
+ "$9.7M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ophc"
+ ],
+ [
+ "OPHT",
+ "Ophthotech Corporation",
+ "55.82",
+ "$1.88B",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/opht"
+ ],
+ [
+ "OPOF",
+ "Old Point Financial Corporation",
+ "14.96",
+ "$74.19M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/opof"
+ ],
+ [
+ "OPTT",
+ "Ocean Power Technologies, Inc.",
+ "0.53",
+ "$9.58M",
+ "2007",
+ "Public Utilities",
+ "Electric Utilities: Central",
+ "http://www.nasdaq.com/symbol/optt"
+ ],
+ [
+ "OPXA",
+ "Opexa Therapeutics, Inc.",
+ "0.73",
+ "$20.57M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/opxa"
+ ],
+ [
+ "ORBC",
+ "ORBCOMM Inc.",
+ "5.71",
+ "$388.99M",
+ "2006",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/orbc"
+ ],
+ [
+ "ORBK",
+ "Orbotech Ltd.",
+ "16.2",
+ "$672.38M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/orbk"
+ ],
+ [
+ "OREX",
+ "Orexigen Therapeutics, Inc.",
+ "5.96",
+ "$734.07M",
+ "2007",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/orex"
+ ],
+ [
+ "ORIG",
+ "Ocean Rig UDW Inc.",
+ "8.61",
+ "$1.14B",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/orig"
+ ],
+ [
+ "ORIT",
+ "Oritani Financial Corp.",
+ "14.33",
+ "$632.51M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/orit"
+ ],
+ [
+ "ORLY",
+ "O'Reilly Automotive, Inc.",
+ "205.84",
+ "$20.88B",
+ "1993",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/orly"
+ ],
+ [
+ "ORMP",
+ "Oramed Pharmaceuticals Inc.",
+ "4.7",
+ "$50.92M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ormp"
+ ],
+ [
+ "ORPN",
+ "Bio Blast Pharma Ltd.",
+ "6.91",
+ "$98.33M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/orpn"
+ ],
+ [
+ "ORRF",
+ "Orrstown Financial Services Inc",
+ "16.77",
+ "$138.58M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/orrf"
+ ],
+ [
+ "OSBC",
+ "Old Second Bancorp, Inc.",
+ "5.52",
+ "$162.52M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/osbc"
+ ],
+ [
+ "OSBCP",
+ "Old Second Bancorp, Inc.",
+ "10",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/osbcp"
+ ],
+ [
+ "OSHC",
+ "Ocean Shore Holding Co.",
+ "14.39",
+ "$92.4M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/oshc"
+ ],
+ [
+ "OSIR",
+ "Osiris Therapeutics, Inc.",
+ "16.52",
+ "$566.97M",
+ "2006",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/osir"
+ ],
+ [
+ "OSIS",
+ "OSI Systems, Inc.",
+ "72.5",
+ "$1.44B",
+ "1997",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/osis"
+ ],
+ [
+ "OSM",
+ "SLM Corporation",
+ "24.49",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/osm"
+ ],
+ [
+ "OSN",
+ "Ossen Innovation Co., Ltd.",
+ "0.75",
+ "$14.93M",
+ "2010",
+ "Basic Industries",
+ "Steel/Iron Ore",
+ "http://www.nasdaq.com/symbol/osn"
+ ],
+ [
+ "OSTK",
+ "Overstock.com, Inc.",
+ "21.33",
+ "$512.71M",
+ "2002",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/ostk"
+ ],
+ [
+ "OSUR",
+ "OraSure Technologies, Inc.",
+ "7.84",
+ "$439.49M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/osur"
+ ],
+ [
+ "OTEL",
+ "Otelco Inc.",
+ "5.0372",
+ "$15.63M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/otel"
+ ],
+ [
+ "OTEX",
+ "Open Text Corporation",
+ "59.75",
+ "$7.3B",
+ "1996",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/otex"
+ ],
+ [
+ "OTIC",
+ "Otonomy, Inc.",
+ "33.31",
+ "$802.96M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/otic"
+ ],
+ [
+ "OTIV",
+ "On Track Innovations Ltd",
+ "1.41",
+ "$47.35M",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/otiv"
+ ],
+ [
+ "OTTR",
+ "Otter Tail Corporation",
+ "32.42",
+ "$1.19B",
+ "n/a",
+ "Public Utilities",
+ "Electric Utilities: Central",
+ "http://www.nasdaq.com/symbol/ottr"
+ ],
+ [
+ "OUTR",
+ "Outerwall Inc.",
+ "67.27",
+ "$1.28B",
+ "n/a",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/outr"
+ ],
+ [
+ "OVAS",
+ "Ovascience Inc.",
+ "46.05",
+ "$1.12B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ovas"
+ ],
+ [
+ "OVBC",
+ "Ohio Valley Banc Corp.",
+ "23.72",
+ "$97.22M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ovbc"
+ ],
+ [
+ "OVLY",
+ "Oak Valley Bancorp (CA)",
+ "10.08",
+ "$81.39M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ovly"
+ ],
+ [
+ "OVTI",
+ "OmniVision Technologies, Inc.",
+ "26.64",
+ "$1.54B",
+ "2000",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/ovti"
+ ],
+ [
+ "OXBR",
+ "Oxbridge Re Holdings Limited",
+ "6.12",
+ "$36.72M",
+ "2014",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/oxbr"
+ ],
+ [
+ "OXBRW",
+ "Oxbridge Re Holdings Limited",
+ "1.35",
+ "n/a",
+ "2014",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/oxbrw"
+ ],
+ [
+ "OXFD",
+ "Oxford Immunotec Global PLC",
+ "13.26",
+ "$233.53M",
+ "2013",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/oxfd"
+ ],
+ [
+ "OXGN",
+ "OXiGENE, Inc.",
+ "1.74",
+ "$36.03M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/oxgn"
+ ],
+ [
+ "OXLC",
+ "Oxford Lane Capital Corp.",
+ "15.47",
+ "$242.93M",
+ "2011",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/oxlc"
+ ],
+ [
+ "OXLCN",
+ "Oxford Lane Capital Corp.",
+ "25.3",
+ "$28.34M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/oxlcn"
+ ],
+ [
+ "OXLCO",
+ "Oxford Lane Capital Corp.",
+ "24.47",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/oxlco"
+ ],
+ [
+ "OXLCP",
+ "Oxford Lane Capital Corp.",
+ "25.483",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/oxlcp"
+ ],
+ [
+ "OZRK",
+ "Bank of the Ozarks",
+ "35.5",
+ "$2.83B",
+ "1997",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ozrk"
+ ],
+ [
+ "PAAS",
+ "Pan American Silver Corp.",
+ "10",
+ "$1.52B",
+ "n/a",
+ "Basic Industries",
+ "Precious Metals",
+ "http://www.nasdaq.com/symbol/paas"
+ ],
+ [
+ "PACB",
+ "Pacific Biosciences of California, Inc.",
+ "6.85",
+ "$506.4M",
+ "2010",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/pacb"
+ ],
+ [
+ "PACW",
+ "PacWest Bancorp",
+ "45.55",
+ "$4.69B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pacw"
+ ],
+ [
+ "PAGG",
+ "PowerShares Global Agriculture Portfolio",
+ "30.79",
+ "$70.82M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pagg"
+ ],
+ [
+ "PAHC",
+ "Phibro Animal Health Corporation",
+ "34.5",
+ "$1.35B",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/pahc"
+ ],
+ [
+ "PANL",
+ "Pangaea Logistics Solutions Ltd.",
+ "2.6292",
+ "$26.29",
+ "2013",
+ "Consumer Services",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/panl"
+ ],
+ [
+ "PARN",
+ "Parnell Pharmaceuticals Holdings Ltd",
+ "4.4966",
+ "$59.73M",
+ "2014",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/parn"
+ ],
+ [
+ "PATI",
+ "Patriot Transportation Holding, Inc.",
+ "23.2",
+ "$75.04M",
+ "n/a",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/pati"
+ ],
+ [
+ "PATK",
+ "Patrick Industries, Inc.",
+ "59.1",
+ "$607.65M",
+ "n/a",
+ "Basic Industries",
+ "Forest Products",
+ "http://www.nasdaq.com/symbol/patk"
+ ],
+ [
+ "PAYX",
+ "Paychex, Inc.",
+ "49.555",
+ "$18B",
+ "1983",
+ "Consumer Services",
+ "Diversified Commercial Services",
+ "http://www.nasdaq.com/symbol/payx"
+ ],
+ [
+ "PBCP",
+ "Polonia Bancorp, Inc.",
+ "10.4985",
+ "$35.02M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/pbcp"
+ ],
+ [
+ "PBCT",
+ "People's United Financial, Inc.",
+ "14.97",
+ "$4.61B",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/pbct"
+ ],
+ [
+ "PBHC",
+ "Pathfinder Bancorp, Inc.",
+ "9.82",
+ "$42.74M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/pbhc"
+ ],
+ [
+ "PBIB",
+ "Porter Bancorp, Inc.",
+ "0.8901",
+ "$13.25M",
+ "2006",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pbib"
+ ],
+ [
+ "PBIP",
+ "Prudential Bancorp, Inc.",
+ "12.22",
+ "$113.69M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/pbip"
+ ],
+ [
+ "PBMD",
+ "Prima BioMed Ltd",
+ "0.8",
+ "$32.77M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/pbmd"
+ ],
+ [
+ "PBPB",
+ "Potbelly Corporation",
+ "15.34",
+ "$444.32M",
+ "2013",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/pbpb"
+ ],
+ [
+ "PBSK",
+ "Poage Bankshares, Inc.",
+ "15",
+ "$58.23M",
+ "2011",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/pbsk"
+ ],
+ [
+ "PCAR",
+ "PACCAR Inc.",
+ "64.59",
+ "$22.87B",
+ "n/a",
+ "Capital Goods",
+ "Auto Manufacturing",
+ "http://www.nasdaq.com/symbol/pcar"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_2.json b/packages/flutter/example/stocks/data/stock_data_2.json
new file mode 100644
index 0000000..3dee177
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_2.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "AROW",
+ "Arrow Financial Corporation",
+ "26.31",
+ "$331.69M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/arow"
+ ],
+ [
+ "ARQL",
+ "ArQule, Inc.",
+ "1.35",
+ "$84.74M",
+ "1996",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/arql"
+ ],
+ [
+ "ARRS",
+ "ARRIS Group, Inc.",
+ "28.59",
+ "$4.14B",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/arrs"
+ ],
+ [
+ "ARRY",
+ "Array BioPharma Inc.",
+ "8.24",
+ "$1.15B",
+ "2000",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/arry"
+ ],
+ [
+ "ARTNA",
+ "Artesian Resources Corporation",
+ "21.59",
+ "$192.19M",
+ "n/a",
+ "Public Utilities",
+ "Water Supply",
+ "http://www.nasdaq.com/symbol/artna"
+ ],
+ [
+ "ARTW",
+ "Art's-Way Manufacturing Co., Inc.",
+ "4.68",
+ "$18.95M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/artw"
+ ],
+ [
+ "ARTX",
+ "Arotech Corporation",
+ "2.61",
+ "$63.8M",
+ "1994",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/artx"
+ ],
+ [
+ "ARUN",
+ "Aruba Networks, Inc.",
+ "18.43",
+ "$2.02B",
+ "2007",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/arun"
+ ],
+ [
+ "ARWR",
+ "Arrowhead Research Corporation",
+ "7.38",
+ "$404.37M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/arwr"
+ ],
+ [
+ "ASBB",
+ "ASB Bancorp, Inc.",
+ "20.4",
+ "$89.32M",
+ "2011",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/asbb"
+ ],
+ [
+ "ASBI",
+ "Ameriana Bancorp",
+ "15.831",
+ "$47.6M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/asbi"
+ ],
+ [
+ "ASCMA",
+ "Ascent Capital Group, Inc.",
+ "46.18",
+ "$636.36M",
+ "n/a",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/ascma"
+ ],
+ [
+ "ASEI",
+ "American Science and Engineering, Inc.",
+ "51.52",
+ "$380.58M",
+ "n/a",
+ "Health Care",
+ "Medical Electronics",
+ "http://www.nasdaq.com/symbol/asei"
+ ],
+ [
+ "ASFI",
+ "Asta Funding, Inc.",
+ "8.44",
+ "$109.6M",
+ "1995",
+ "Finance",
+ "Finance Companies",
+ "http://www.nasdaq.com/symbol/asfi"
+ ],
+ [
+ "ASMB",
+ "Assembly Biosciences, Inc.",
+ "14.95",
+ "$159.17M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/asmb"
+ ],
+ [
+ "ASMI",
+ "ASM International N.V.",
+ "44.23",
+ "$2.82B",
+ "n/a",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/asmi"
+ ],
+ [
+ "ASML",
+ "ASML Holding N.V.",
+ "104.85",
+ "$45.39B",
+ "1995",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/asml"
+ ],
+ [
+ "ASNA",
+ "Ascena Retail Group, Inc.",
+ "13.16",
+ "$2.14B",
+ "n/a",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/asna"
+ ],
+ [
+ "ASND",
+ "Ascendis Pharma A/S",
+ "19.34",
+ "$443.58M",
+ "2015",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/asnd"
+ ],
+ [
+ "ASPS",
+ "Altisource Portfolio Solutions S.A.",
+ "23.2",
+ "$470.31M",
+ "n/a",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/asps"
+ ],
+ [
+ "ASPX",
+ "Auspex Pharmaceuticals, Inc.",
+ "70.25",
+ "$2.2B",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/aspx"
+ ],
+ [
+ "ASRV",
+ "AmeriServ Financial Inc.",
+ "2.95",
+ "$55.44M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/asrv"
+ ],
+ [
+ "ASRVP",
+ "AmeriServ Financial Inc.",
+ "27.66",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/asrvp"
+ ],
+ [
+ "ASTC",
+ "Astrotech Corporation",
+ "3.1799",
+ "$63.64M",
+ "n/a",
+ "Capital Goods",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/astc"
+ ],
+ [
+ "ASTE",
+ "Astec Industries, Inc.",
+ "39.27",
+ "$900.41M",
+ "1986",
+ "Capital Goods",
+ "Construction/Ag Equipment/Trucks",
+ "http://www.nasdaq.com/symbol/aste"
+ ],
+ [
+ "ASTI",
+ "Ascent Solar Technologies, Inc.",
+ "1.7",
+ "$27.62M",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/asti"
+ ],
+ [
+ "ASUR",
+ "Asure Software Inc",
+ "5.93",
+ "$35.87M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/asur"
+ ],
+ [
+ "ASYS",
+ "Amtech Systems, Inc.",
+ "10.49",
+ "$136.96M",
+ "n/a",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/asys"
+ ],
+ [
+ "ATAI",
+ "ATA Inc.",
+ "4.37",
+ "$100.71M",
+ "2008",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/atai"
+ ],
+ [
+ "ATAX",
+ "America First Multifamily Investors, L.P.",
+ "5.79",
+ "$348.86M",
+ "n/a",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/atax"
+ ],
+ [
+ "ATEC",
+ "Alphatec Holdings, Inc.",
+ "1.35",
+ "$134.45M",
+ "2006",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/atec"
+ ],
+ [
+ "ATHN",
+ "athenahealth, Inc.",
+ "132.96",
+ "$5.08B",
+ "2007",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/athn"
+ ],
+ [
+ "ATHX",
+ "Athersys, Inc.",
+ "2.37",
+ "$183.71M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/athx"
+ ],
+ [
+ "ATLC",
+ "Atlanticus Holdings Corporation",
+ "2.88",
+ "$40.06M",
+ "1995",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/atlc"
+ ],
+ [
+ "ATLO",
+ "Ames National Corporation",
+ "24.74",
+ "$230.35M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/atlo"
+ ],
+ [
+ "ATML",
+ "Atmel Corporation",
+ "8.38",
+ "$3.5B",
+ "1991",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/atml"
+ ],
+ [
+ "ATNI",
+ "Atlantic Tele-Network, Inc.",
+ "65",
+ "$1.03B",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/atni"
+ ],
+ [
+ "ATNY",
+ "API Technologies Corp.",
+ "1.8548",
+ "$102.75M",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/atny"
+ ],
+ [
+ "ATOS",
+ "Atossa Genetics Inc.",
+ "1.64",
+ "$40.29M",
+ "2012",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/atos"
+ ],
+ [
+ "ATRA",
+ "Atara Biotherapeutics, Inc.",
+ "21.32",
+ "$519.36M",
+ "2014",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/atra"
+ ],
+ [
+ "ATRC",
+ "AtriCure, Inc.",
+ "18.5",
+ "$508.21M",
+ "2005",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/atrc"
+ ],
+ [
+ "ATRI",
+ "ATRION Corporation",
+ "317.01",
+ "$617.36M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/atri"
+ ],
+ [
+ "ATRM",
+ "ATRM Holdings, Inc.",
+ "3.36",
+ "$3.99M",
+ "1993",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/atrm"
+ ],
+ [
+ "ATRO",
+ "Astronics Corporation",
+ "66.89",
+ "$1.46B",
+ "n/a",
+ "Capital Goods",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/atro"
+ ],
+ [
+ "ATRS",
+ "Antares Pharma, Inc.",
+ "2.59",
+ "$341.06M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/atrs"
+ ],
+ [
+ "ATSG",
+ "Air Transport Services Group, Inc",
+ "8.95",
+ "$581.21M",
+ "n/a",
+ "Transportation",
+ "Air Freight/Delivery Services",
+ "http://www.nasdaq.com/symbol/atsg"
+ ],
+ [
+ "ATTU",
+ "Attunity Ltd.",
+ "9.65",
+ "$146.48M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/attu"
+ ],
+ [
+ "ATVI",
+ "Activision Blizzard, Inc",
+ "23.31",
+ "$16.76B",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/atvi"
+ ],
+ [
+ "AUBN",
+ "Auburn National Bancorporation, Inc.",
+ "24.7499",
+ "$90.17M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/aubn"
+ ],
+ [
+ "AUDC",
+ "AudioCodes Ltd.",
+ "5.37",
+ "$227.15M",
+ "1999",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/audc"
+ ],
+ [
+ "AUMA",
+ "AR Capital Acquisition Corp.",
+ "9.78",
+ "$293.4M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/auma"
+ ],
+ [
+ "AUMAU",
+ "AR Capital Acquisition Corp.",
+ "9.85",
+ "n/a",
+ "2014",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/aumau"
+ ],
+ [
+ "AUMAW",
+ "AR Capital Acquisition Corp.",
+ "0.24",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/aumaw"
+ ],
+ [
+ "AUPH",
+ "Aurinia Pharmaceuticals Inc",
+ "3.84",
+ "$122.18M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/auph"
+ ],
+ [
+ "AVAV",
+ "AeroVironment, Inc.",
+ "27.88",
+ "$650.21M",
+ "2007",
+ "Capital Goods",
+ "Aerospace",
+ "http://www.nasdaq.com/symbol/avav"
+ ],
+ [
+ "AVEO",
+ "AVEO Pharmaceuticals, Inc.",
+ "0.9297",
+ "$48.58M",
+ "2010",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/aveo"
+ ],
+ [
+ "AVGO",
+ "Avago Technologies Limited",
+ "112.06",
+ "$28.61B",
+ "2009",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/avgo"
+ ],
+ [
+ "AVGR",
+ "Avinger, Inc.",
+ "10.41",
+ "$106.49M",
+ "2015",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/avgr"
+ ],
+ [
+ "AVHI",
+ "A V Homes, Inc.",
+ "15.13",
+ "$334.32M",
+ "n/a",
+ "Capital Goods",
+ "Homebuilding",
+ "http://www.nasdaq.com/symbol/avhi"
+ ],
+ [
+ "AVID",
+ "Avid Technology, Inc.",
+ "14.74",
+ "$578.01M",
+ "1993",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/avid"
+ ],
+ [
+ "AVNU",
+ "Avenue Financial Holdings, Inc.",
+ "11.75",
+ "$117.62M",
+ "2015",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/avnu"
+ ],
+ [
+ "AVNW",
+ "Aviat Networks, Inc.",
+ "1.27",
+ "$79.16M",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/avnw"
+ ],
+ [
+ "AWAY",
+ "HomeAway, Inc.",
+ "30.985",
+ "$2.92B",
+ "2011",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/away"
+ ],
+ [
+ "AWRE",
+ "Aware, Inc.",
+ "4.59",
+ "$104.95M",
+ "1996",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/awre"
+ ],
+ [
+ "AXAS",
+ "Abraxas Petroleum Corporation",
+ "3.16",
+ "$332.99M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/axas"
+ ],
+ [
+ "AXDX",
+ "Accelerate Diagnostics, Inc.",
+ "18.05",
+ "$805.21M",
+ "n/a",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/axdx"
+ ],
+ [
+ "AXGN",
+ "AxoGen, Inc.",
+ "3.17",
+ "$79.02M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/axgn"
+ ],
+ [
+ "AXJS",
+ "iShares MSCI All Country Asia ex Japan Small Cap Index Fund",
+ "56.813",
+ "$5.68M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/axjs"
+ ],
+ [
+ "AXPW",
+ "Axion Power International, Inc.",
+ "0.46",
+ "$3.28M",
+ "n/a",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/axpw"
+ ],
+ [
+ "AXPWW",
+ "Axion Power International, Inc.",
+ "0.14",
+ "n/a",
+ "n/a",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/axpww"
+ ],
+ [
+ "AXTI",
+ "AXT Inc",
+ "2.64",
+ "$86.69M",
+ "1998",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/axti"
+ ],
+ [
+ "AZPN",
+ "Aspen Technology, Inc.",
+ "39.07",
+ "$3.45B",
+ "1994",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/azpn"
+ ],
+ [
+ "BABY",
+ "Natus Medical Incorporated",
+ "36.58",
+ "$1.19B",
+ "2001",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/baby"
+ ],
+ [
+ "BAGR",
+ "Diversified Restaurant Holdings, Inc.",
+ "4.8",
+ "$125.69M",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/bagr"
+ ],
+ [
+ "BAMM",
+ "Books-A-Million, Inc.",
+ "2.55",
+ "$38.29M",
+ "1992",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/bamm"
+ ],
+ [
+ "BANF",
+ "BancFirst Corporation",
+ "58.97",
+ "$913.24M",
+ "1993",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/banf"
+ ],
+ [
+ "BANFP",
+ "BancFirst Corporation",
+ "28.7",
+ "$28.7M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/banfp"
+ ],
+ [
+ "BANR",
+ "Banner Corporation",
+ "44.54",
+ "$871.72M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/banr"
+ ],
+ [
+ "BANX",
+ "StoneCastle Financial Corp",
+ "21.42",
+ "$134.9M",
+ "2013",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/banx"
+ ],
+ [
+ "BASI",
+ "Bioanalytical Systems, Inc.",
+ "2.0204",
+ "$16.32M",
+ "1997",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/basi"
+ ],
+ [
+ "BBBY",
+ "Bed Bath & Beyond Inc.",
+ "76.885",
+ "$14.27B",
+ "1992",
+ "Consumer Services",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/bbby"
+ ],
+ [
+ "BBC",
+ "BioShares Biotechnology Clinical Trials Fund",
+ "30.661",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/bbc"
+ ],
+ [
+ "BBCN",
+ "BBCN Bancorp, Inc.",
+ "13.78",
+ "$1.1B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bbcn"
+ ],
+ [
+ "BBEP",
+ "BreitBurn Energy Partners, L.P.",
+ "7.59",
+ "$1.05B",
+ "2006",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/bbep"
+ ],
+ [
+ "BBEPP",
+ "BreitBurn Energy Partners, L.P.",
+ "22.35",
+ "$178.8M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/bbepp"
+ ],
+ [
+ "BBGI",
+ "Beasley Broadcast Group, Inc.",
+ "5.02",
+ "$116.02M",
+ "2000",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/bbgi"
+ ],
+ [
+ "BBLU",
+ "Blue Earth, Inc.",
+ "1.2199",
+ "$113.81M",
+ "n/a",
+ "Public Utilities",
+ "Electric Utilities: Central",
+ "http://www.nasdaq.com/symbol/bblu"
+ ],
+ [
+ "BBNK",
+ "Bridge Capital Holdings",
+ "21.86",
+ "$350.5M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bbnk"
+ ],
+ [
+ "BBOX",
+ "Black Box Corporation",
+ "22.21",
+ "$341.22M",
+ "n/a",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/bbox"
+ ],
+ [
+ "BBP",
+ "BioShares Biotechnology Products Fund",
+ "29.7493",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/bbp"
+ ],
+ [
+ "BBRG",
+ "Bravo Brio Restaurant Group, Inc.",
+ "13.5",
+ "$203.65M",
+ "2010",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/bbrg"
+ ],
+ [
+ "BBRY",
+ "BlackBerry Limited",
+ "10.27",
+ "$5.43B",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/bbry"
+ ],
+ [
+ "BBSI",
+ "Barrett Business Services, Inc.",
+ "38.57",
+ "$274.48M",
+ "1993",
+ "Technology",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/bbsi"
+ ],
+ [
+ "BCBP",
+ "BCB Bancorp, Inc. (NJ)",
+ "11.73",
+ "$98.38M",
+ "2005",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/bcbp"
+ ],
+ [
+ "BCLI",
+ "Brainstorm Cell Therapeutics Inc.",
+ "3.92",
+ "$59.9M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/bcli"
+ ],
+ [
+ "BCOM",
+ "B Communications Ltd.",
+ "17.09",
+ "$510.8M",
+ "n/a",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/bcom"
+ ],
+ [
+ "BCOR",
+ "Blucora, Inc.",
+ "13.33",
+ "$546.57M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/bcor"
+ ],
+ [
+ "BCOV",
+ "Brightcove Inc.",
+ "8.05",
+ "$259.8M",
+ "2012",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/bcov"
+ ],
+ [
+ "BCPC",
+ "Balchem Corporation",
+ "58.9",
+ "$1.81B",
+ "n/a",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/bcpc"
+ ],
+ [
+ "BCRX",
+ "BioCryst Pharmaceuticals, Inc.",
+ "10.15",
+ "$729.42M",
+ "1994",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/bcrx"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_20.json b/packages/flutter/example/stocks/data/stock_data_20.json
new file mode 100644
index 0000000..bc94c83
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_20.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "PCBK",
+ "Pacific Continental Corporation (Ore)",
+ "13.44",
+ "$238.12M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pcbk"
+ ],
+ [
+ "PCCC",
+ "PC Connection, Inc.",
+ "24.64",
+ "$648.1M",
+ "1998",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/pccc"
+ ],
+ [
+ "PCH",
+ "Potlatch Corporation",
+ "40.02",
+ "$1.63B",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/pch"
+ ],
+ [
+ "PCLN",
+ "The Priceline Group Inc. ",
+ "1216.23",
+ "$63.17B",
+ "1999",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/pcln"
+ ],
+ [
+ "PCMI",
+ "PCM, Inc.",
+ "9.72",
+ "$120.34M",
+ "n/a",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/pcmi"
+ ],
+ [
+ "PCO",
+ "Pendrell Corporation",
+ "1.17",
+ "$312.18M",
+ "n/a",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/pco"
+ ],
+ [
+ "PCOM",
+ "Points International, Ltd.",
+ "10.59",
+ "$165.72M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/pcom"
+ ],
+ [
+ "PCRX",
+ "Pacira Pharmaceuticals, Inc.",
+ "117.33",
+ "$4.23B",
+ "2011",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/pcrx"
+ ],
+ [
+ "PCTI",
+ "PC-Tel, Inc.",
+ "8.21",
+ "$152.11M",
+ "1999",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/pcti"
+ ],
+ [
+ "PCTY",
+ "Paylocity Holding Corporation",
+ "30.21",
+ "$1.53B",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/pcty"
+ ],
+ [
+ "PCYC",
+ "Pharmacyclics, Inc.",
+ "177.56",
+ "$13.5B",
+ "1995",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/pcyc"
+ ],
+ [
+ "PCYG",
+ "Park City Group, Inc.",
+ "13.2",
+ "$229.27M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/pcyg"
+ ],
+ [
+ "PCYO",
+ "Pure Cycle Corporation",
+ "4.92",
+ "$118.26M",
+ "n/a",
+ "Public Utilities",
+ "Water Supply",
+ "http://www.nasdaq.com/symbol/pcyo"
+ ],
+ [
+ "PDBC",
+ "PowerShares DB Optimum Yield Diversified Commodity Strategy Po",
+ "20.85",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pdbc"
+ ],
+ [
+ "PDCE",
+ "PDC Energy, Inc.",
+ "51.37",
+ "$1.85B",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/pdce"
+ ],
+ [
+ "PDCO",
+ "Patterson Companies, Inc.",
+ "49.29",
+ "$5.08B",
+ "1992",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/pdco"
+ ],
+ [
+ "PDEX",
+ "Pro-Dex, Inc.",
+ "2.28",
+ "$9.51M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/pdex"
+ ],
+ [
+ "PDFS",
+ "PDF Solutions, Inc.",
+ "17.68",
+ "$547.64M",
+ "2001",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/pdfs"
+ ],
+ [
+ "PDII",
+ "PDI, Inc.",
+ "1.96",
+ "$30.11M",
+ "1998",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/pdii"
+ ],
+ [
+ "PDLI",
+ "PDL BioPharma, Inc.",
+ "7.28",
+ "$1.17B",
+ "1992",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/pdli"
+ ],
+ [
+ "PDVW",
+ "Pacific DataVision, Inc.",
+ "55",
+ "n/a",
+ "2015",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/pdvw"
+ ],
+ [
+ "PEBK",
+ "Peoples Bancorp of North Carolina, Inc.",
+ "18.11",
+ "$101.73M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pebk"
+ ],
+ [
+ "PEBO",
+ "Peoples Bancorp Inc.",
+ "23.94",
+ "$338.76M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pebo"
+ ],
+ [
+ "PEGA",
+ "Pegasystems Inc.",
+ "22.56",
+ "$1.72B",
+ "1996",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/pega"
+ ],
+ [
+ "PEGI",
+ "Pattern Energy Group Inc.",
+ "28.26",
+ "$1.95B",
+ "2013",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pegi"
+ ],
+ [
+ "PEIX",
+ "Pacific Ethanol, Inc.",
+ "9.73",
+ "$238.24M",
+ "n/a",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/peix"
+ ],
+ [
+ "PENN",
+ "Penn National Gaming, Inc.",
+ "16.39",
+ "$1.29B",
+ "1994",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/penn"
+ ],
+ [
+ "PENX",
+ "Penford Corporation",
+ "18.82",
+ "$240.68M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/penx"
+ ],
+ [
+ "PERF",
+ "Perfumania Holdings, Inc",
+ "5.63",
+ "$87.13M",
+ "n/a",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/perf"
+ ],
+ [
+ "PERI",
+ "Perion Network Ltd",
+ "3.27",
+ "$231.05M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/peri"
+ ],
+ [
+ "PERY",
+ "Perry Ellis International Inc.",
+ "23.03",
+ "$357.02M",
+ "1993",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/pery"
+ ],
+ [
+ "PESI",
+ "Perma-Fix Environmental Services, Inc.",
+ "4.19",
+ "$48.05M",
+ "n/a",
+ "Basic Industries",
+ "Environmental Services",
+ "http://www.nasdaq.com/symbol/pesi"
+ ],
+ [
+ "PETM",
+ "PetSmart, Inc",
+ "82.91",
+ "$8.24B",
+ "1993",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/petm"
+ ],
+ [
+ "PETS",
+ "PetMed Express, Inc.",
+ "15.36",
+ "$311.24M",
+ "n/a",
+ "Health Care",
+ "Medical/Nursing Services",
+ "http://www.nasdaq.com/symbol/pets"
+ ],
+ [
+ "PETX",
+ "Aratana Therapeutics, Inc.",
+ "16.98",
+ "$589.3M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/petx"
+ ],
+ [
+ "PFBC",
+ "Preferred Bank",
+ "27.63",
+ "$372.87M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pfbc"
+ ],
+ [
+ "PFBI",
+ "Premier Financial Bancorp, Inc.",
+ "14.9104",
+ "$121M",
+ "1996",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pfbi"
+ ],
+ [
+ "PFBX",
+ "Peoples Financial Corporation",
+ "10.62",
+ "$54.41M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pfbx"
+ ],
+ [
+ "PFIE",
+ "Profire Energy, Inc.",
+ "2.2",
+ "$116.73M",
+ "n/a",
+ "Energy",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/pfie"
+ ],
+ [
+ "PFIN",
+ "P & F Industries, Inc.",
+ "7.6",
+ "$27.24M",
+ "n/a",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/pfin"
+ ],
+ [
+ "PFIS",
+ "Peoples Financial Services Corp. ",
+ "41.54",
+ "$313.56M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pfis"
+ ],
+ [
+ "PFLT",
+ "PennantPark Floating Rate Capital Ltd.",
+ "13.88",
+ "$206.79M",
+ "2011",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pflt"
+ ],
+ [
+ "PFMT",
+ "Performant Financial Corporation",
+ "5.93",
+ "$292.64M",
+ "2012",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/pfmt"
+ ],
+ [
+ "PFPT",
+ "Proofpoint, Inc.",
+ "57.24",
+ "$2.18B",
+ "2012",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/pfpt"
+ ],
+ [
+ "PFSW",
+ "PFSweb, Inc.",
+ "10.83",
+ "$185.78M",
+ "1999",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/pfsw"
+ ],
+ [
+ "PGC",
+ "Peapack-Gladstone Financial Corporation",
+ "19.25",
+ "$236.57M",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/pgc"
+ ],
+ [
+ "PGNX",
+ "Progenics Pharmaceuticals Inc.",
+ "6.23",
+ "$433.33M",
+ "1997",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/pgnx"
+ ],
+ [
+ "PGTI",
+ "PGT, Inc.",
+ "8.43",
+ "$401.44M",
+ "2006",
+ "Capital Goods",
+ "Building Products",
+ "http://www.nasdaq.com/symbol/pgti"
+ ],
+ [
+ "PHII",
+ "PHI, Inc.",
+ "34.45",
+ "$533.38M",
+ "n/a",
+ "Transportation",
+ "Transportation Services",
+ "http://www.nasdaq.com/symbol/phii"
+ ],
+ [
+ "PHIIK",
+ "PHI, Inc.",
+ "32.99",
+ "$510.77M",
+ "n/a",
+ "Transportation",
+ "Transportation Services",
+ "http://www.nasdaq.com/symbol/phiik"
+ ],
+ [
+ "PHMD",
+ "PhotoMedex, Inc.",
+ "1.72",
+ "$35.04M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/phmd"
+ ],
+ [
+ "PICO",
+ "PICO Holdings Inc.",
+ "16.42",
+ "$377.74M",
+ "n/a",
+ "Finance",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/pico"
+ ],
+ [
+ "PIH",
+ "1347 Property Insurance Holdings, Inc.",
+ "7.66",
+ "$48.7M",
+ "2014",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/pih"
+ ],
+ [
+ "PINC",
+ "Premier, Inc.",
+ "35.31",
+ "$1.32B",
+ "2013",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/pinc"
+ ],
+ [
+ "PKBK",
+ "Parke Bancorp, Inc.",
+ "11.572",
+ "$69.34M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pkbk"
+ ],
+ [
+ "PKOH",
+ "Park-Ohio Holdings Corp.",
+ "56.16",
+ "$702.62M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/pkoh"
+ ],
+ [
+ "PKT",
+ "Procera Networks, Inc.",
+ "8.82",
+ "$182.92M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/pkt"
+ ],
+ [
+ "PLAB",
+ "Photronics, Inc.",
+ "8.54",
+ "$566.62M",
+ "1987",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/plab"
+ ],
+ [
+ "PLAY",
+ "Dave & Buster's Entertainment, Inc.",
+ "30.48",
+ "$1.22B",
+ "2014",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/play"
+ ],
+ [
+ "PLBC",
+ "Plumas Bancorp",
+ "9",
+ "$43.16M",
+ "n/a",
+ "Finance",
+ "Finance Companies",
+ "http://www.nasdaq.com/symbol/plbc"
+ ],
+ [
+ "PLCE",
+ "Children's Place, Inc. (The)",
+ "56.96",
+ "$1.21B",
+ "1997",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/plce"
+ ],
+ [
+ "PLCM",
+ "Polycom, Inc.",
+ "13.84",
+ "$1.89B",
+ "1996",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/plcm"
+ ],
+ [
+ "PLKI",
+ "Popeyes Louisiana Kitchen, Inc.",
+ "62.4",
+ "$1.46B",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/plki"
+ ],
+ [
+ "PLMT",
+ "Palmetto Bancshares, Inc. (SC)",
+ "17.03",
+ "$217.87M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/plmt"
+ ],
+ [
+ "PLNR",
+ "Planar Systems, Inc.",
+ "6.07",
+ "$136.02M",
+ "1993",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/plnr"
+ ],
+ [
+ "PLPC",
+ "Preformed Line Products Company",
+ "46.32",
+ "$248.02M",
+ "n/a",
+ "Basic Industries",
+ "Water Supply",
+ "http://www.nasdaq.com/symbol/plpc"
+ ],
+ [
+ "PLPM",
+ "Planet Payment, Inc.",
+ "1.62",
+ "$90.41M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/plpm"
+ ],
+ [
+ "PLTM",
+ "First Trust ISE Global Platinum Index",
+ "10.67",
+ "$10.14M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pltm"
+ ],
+ [
+ "PLUG",
+ "Plug Power, Inc.",
+ "3.24",
+ "$560.93M",
+ "1999",
+ "Energy",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/plug"
+ ],
+ [
+ "PLUS",
+ "ePlus inc.",
+ "80.59",
+ "$595.59M",
+ "1996",
+ "Technology",
+ "Retail: Computer Software & Peripheral Equipment",
+ "http://www.nasdaq.com/symbol/plus"
+ ],
+ [
+ "PLXS",
+ "Plexus Corp.",
+ "40.62",
+ "$1.37B",
+ "n/a",
+ "Technology",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/plxs"
+ ],
+ [
+ "PMBC",
+ "Pacific Mercantile Bancorp",
+ "7.1",
+ "$137.99M",
+ "2000",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pmbc"
+ ],
+ [
+ "PMCS",
+ "PMC - Sierra, Inc.",
+ "9.47",
+ "$1.88B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/pmcs"
+ ],
+ [
+ "PMD",
+ "Psychemedics Corporation",
+ "16.07",
+ "$86.38M",
+ "n/a",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/pmd"
+ ],
+ [
+ "PME",
+ "Pingtan Marine Enterprise Ltd.",
+ "2.51",
+ "$198.43M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pme"
+ ],
+ [
+ "PMFG",
+ "PMFG, Inc.",
+ "4.62",
+ "$98.42M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/pmfg"
+ ],
+ [
+ "PNBK",
+ "Patriot National Bancorp Inc.",
+ "1.58",
+ "$61.87M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pnbk"
+ ],
+ [
+ "PNFP",
+ "Pinnacle Financial Partners, Inc.",
+ "40.48",
+ "$1.44B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pnfp"
+ ],
+ [
+ "PNNT",
+ "PennantPark Investment Corporation",
+ "9.49",
+ "$712.63M",
+ "2007",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pnnt"
+ ],
+ [
+ "PNQI",
+ "PowerShares NASDAQ Internet Portfolio",
+ "70.67",
+ "$229.68M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pnqi"
+ ],
+ [
+ "PNRA",
+ "Panera Bread Company",
+ "157.48",
+ "$4.25B",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/pnra"
+ ],
+ [
+ "PNRG",
+ "PrimeEnergy Corporation",
+ "58.96",
+ "$138.18M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/pnrg"
+ ],
+ [
+ "PNTR",
+ "Pointer Telocation Ltd.",
+ "8.33",
+ "$64.05M",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/pntr"
+ ],
+ [
+ "PODD",
+ "Insulet Corporation",
+ "31.99",
+ "$1.79B",
+ "2007",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/podd"
+ ],
+ [
+ "POOL",
+ "Pool Corporation",
+ "69.93",
+ "$3.04B",
+ "1995",
+ "Consumer Durables",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/pool"
+ ],
+ [
+ "POPE",
+ "Pope Resources",
+ "62.974",
+ "$272.42M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Environmental Services",
+ "http://www.nasdaq.com/symbol/pope"
+ ],
+ [
+ "POWI",
+ "Power Integrations, Inc.",
+ "54.66",
+ "$1.6B",
+ "1997",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/powi"
+ ],
+ [
+ "POWL",
+ "Powell Industries, Inc.",
+ "33.41",
+ "$402.91M",
+ "n/a",
+ "Consumer Durables",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/powl"
+ ],
+ [
+ "POZN",
+ "Pozen, Inc.",
+ "7.32",
+ "$234.81M",
+ "2000",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/pozn"
+ ],
+ [
+ "PPBI",
+ "Pacific Premier Bancorp Inc",
+ "16.07",
+ "$271.49M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ppbi"
+ ],
+ [
+ "PPC",
+ "Pilgrim's Pride Corporation",
+ "27.645",
+ "$7.18B",
+ "n/a",
+ "Consumer Non-Durables",
+ "Meat/Poultry/Fish",
+ "http://www.nasdaq.com/symbol/ppc"
+ ],
+ [
+ "PPHM",
+ "Peregrine Pharmaceuticals Inc.",
+ "1.29",
+ "$234.88M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/pphm"
+ ],
+ [
+ "PPHMP",
+ "Peregrine Pharmaceuticals Inc.",
+ "21.95",
+ "$15.37M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/pphmp"
+ ],
+ [
+ "PPSI",
+ "Pioneer Power Solutions, Inc.",
+ "9.07",
+ "$65.05M",
+ "n/a",
+ "Consumer Durables",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/ppsi"
+ ],
+ [
+ "PRAA",
+ "PRA Group, Inc.",
+ "54.15",
+ "$2.71B",
+ "2002",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/praa"
+ ],
+ [
+ "PRAH",
+ "PRA Health Sciences, Inc.",
+ "28.08",
+ "$1.61B",
+ "2014",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/prah"
+ ],
+ [
+ "PRAN",
+ "Prana Biotechnology Ltd",
+ "1.11",
+ "$54.24M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/pran"
+ ],
+ [
+ "PRCP",
+ "Perceptron, Inc.",
+ "11.06",
+ "$102.41M",
+ "1992",
+ "Capital Goods",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/prcp"
+ ],
+ [
+ "PRFT",
+ "Perficient, Inc.",
+ "19.6",
+ "$674.72M",
+ "1999",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/prft"
+ ],
+ [
+ "PRFZ",
+ "PowerShares FTSE RAFI US 1500 Small-Mid Portfolio",
+ "102.73",
+ "$1.13B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/prfz"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_21.json b/packages/flutter/example/stocks/data/stock_data_21.json
new file mode 100644
index 0000000..d6f913b
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_21.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "PRGN",
+ "Paragon Shipping Inc.",
+ "1.89",
+ "$46.48M",
+ "2013",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/prgn"
+ ],
+ [
+ "PRGNL",
+ "Paragon Shipping Inc.",
+ "18.4",
+ "n/a",
+ "n/a",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/prgnl"
+ ],
+ [
+ "PRGS",
+ "Progress Software Corporation",
+ "27.3",
+ "$1.38B",
+ "1991",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/prgs"
+ ],
+ [
+ "PRGX",
+ "PRGX Global, Inc.",
+ "5.33",
+ "$145.25M",
+ "1996",
+ "Consumer Services",
+ "Diversified Commercial Services",
+ "http://www.nasdaq.com/symbol/prgx"
+ ],
+ [
+ "PRIM",
+ "Primoris Services Corporation",
+ "21.3",
+ "$1.1B",
+ "n/a",
+ "Basic Industries",
+ "Water Supply",
+ "http://www.nasdaq.com/symbol/prim"
+ ],
+ [
+ "PRKR",
+ "ParkerVision, Inc.",
+ "1.04",
+ "$101.03M",
+ "1993",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/prkr"
+ ],
+ [
+ "PRMW",
+ "Primo Water Corporation",
+ "4.04",
+ "$99.1M",
+ "2010",
+ "Consumer Non-Durables",
+ "Food Distributors",
+ "http://www.nasdaq.com/symbol/prmw"
+ ],
+ [
+ "PROV",
+ "Provident Financial Holdings, Inc.",
+ "15.38",
+ "$138.35M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/prov"
+ ],
+ [
+ "PRPH",
+ "ProPhase Labs, Inc.",
+ "1.48",
+ "$22.89M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/prph"
+ ],
+ [
+ "PRQR",
+ "ProQR Therapeutics N.V.",
+ "18.97",
+ "$442.72M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/prqr"
+ ],
+ [
+ "PRSC",
+ "The Providence Service Corporation",
+ "40.65",
+ "$644.44M",
+ "2003",
+ "Consumer Services",
+ "Transportation Services",
+ "http://www.nasdaq.com/symbol/prsc"
+ ],
+ [
+ "PRSS",
+ "CafePress Inc.",
+ "3.73",
+ "$64.8M",
+ "2012",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/prss"
+ ],
+ [
+ "PRTA",
+ "Prothena Corporation plc",
+ "26.63",
+ "$729.24M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/prta"
+ ],
+ [
+ "PRTK",
+ "Paratek Pharmaceuticals, Inc. ",
+ "31.4",
+ "$452.72M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/prtk"
+ ],
+ [
+ "PRTO",
+ "Proteon Therapeutics, Inc.",
+ "10.56",
+ "$173.7M",
+ "2014",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/prto"
+ ],
+ [
+ "PRTS",
+ "U.S. Auto Parts Network, Inc.",
+ "2.79",
+ "$93.64M",
+ "2007",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/prts"
+ ],
+ [
+ "PRXI",
+ "Premier Exhibitions, Inc.",
+ "0.391",
+ "$19.22M",
+ "n/a",
+ "Consumer Services",
+ "Services-Misc. Amusement & Recreation",
+ "http://www.nasdaq.com/symbol/prxi"
+ ],
+ [
+ "PRXL",
+ "PAREXEL International Corporation",
+ "63.56",
+ "$3.48B",
+ "1995",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/prxl"
+ ],
+ [
+ "PSAU",
+ "PowerShares Global Gold and Precious Metals Portfolio",
+ "17.67",
+ "$21.2M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/psau"
+ ],
+ [
+ "PSBH",
+ "PSB Holdings, Inc.",
+ "7.56",
+ "$49.45M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/psbh"
+ ],
+ [
+ "PSCC",
+ "PowerShares S&P SmallCap Consumer Staples Portfolio",
+ "53.39",
+ "$21.36M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pscc"
+ ],
+ [
+ "PSCD",
+ "PowerShares S&P SmallCap Consumer Discretionary Portfolio",
+ "52.96",
+ "$121.81M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pscd"
+ ],
+ [
+ "PSCE",
+ "PowerShares S&P SmallCap Energy Portfolio",
+ "29.76",
+ "$23.81M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/psce"
+ ],
+ [
+ "PSCF",
+ "PowerShares S&P SmallCap Financials Portfolio",
+ "41.29",
+ "$115.61M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pscf"
+ ],
+ [
+ "PSCH",
+ "PowerShares S&P SmallCap Health Care Portfolio",
+ "64.779",
+ "$181.38M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/psch"
+ ],
+ [
+ "PSCI",
+ "PowerShares S&P SmallCap Industrials Portfolio",
+ "46.85",
+ "$117.13M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/psci"
+ ],
+ [
+ "PSCM",
+ "PowerShares S&P SmallCap Materials Portfolio",
+ "41.6101",
+ "$56.17M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pscm"
+ ],
+ [
+ "PSCT",
+ "PowerShares S&P SmallCap Information Technology Portfolio",
+ "52.0208",
+ "$252.3M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/psct"
+ ],
+ [
+ "PSCU",
+ "PowerShares S&P SmallCap Utilities Portfolio",
+ "38.44",
+ "$40.36M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pscu"
+ ],
+ [
+ "PSDV",
+ "pSivida Corp.",
+ "4.5",
+ "$132.36M",
+ "n/a",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/psdv"
+ ],
+ [
+ "PSEC",
+ "Prospect Capital Corporation",
+ "8.8",
+ "$3.15B",
+ "2004",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/psec"
+ ],
+ [
+ "PSEM",
+ "Pericom Semiconductor Corporation",
+ "15.01",
+ "$335.58M",
+ "1997",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/psem"
+ ],
+ [
+ "PSIX",
+ "Power Solutions International, Inc.",
+ "50.89",
+ "$546.11M",
+ "n/a",
+ "Energy",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/psix"
+ ],
+ [
+ "PSMT",
+ "PriceSmart, Inc.",
+ "82.42",
+ "$2.49B",
+ "n/a",
+ "Consumer Services",
+ "Department/Specialty Retail Stores",
+ "http://www.nasdaq.com/symbol/psmt"
+ ],
+ [
+ "PSTB",
+ "Park Sterling Corporation",
+ "6.99",
+ "$313.5M",
+ "2010",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pstb"
+ ],
+ [
+ "PSTI",
+ "Pluristem Therapeutics, Inc.",
+ "2.98",
+ "$210.17M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/psti"
+ ],
+ [
+ "PSTR",
+ "PostRock Energy Corporation",
+ "4.04",
+ "$25.51M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/pstr"
+ ],
+ [
+ "PSUN",
+ "Pacific Sunwear of California, Inc.",
+ "2.84",
+ "$196.71M",
+ "1999",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/psun"
+ ],
+ [
+ "PTBI",
+ "PlasmaTech Biopharmaceuticals, Inc.",
+ "3.1",
+ "$64.12M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ptbi"
+ ],
+ [
+ "PTBIW",
+ "PlasmaTech Biopharmaceuticals, Inc.",
+ "1.08",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ptbiw"
+ ],
+ [
+ "PTC",
+ "PTC Inc.",
+ "34.93",
+ "$4.01B",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/ptc"
+ ],
+ [
+ "PTCT",
+ "PTC Therapeutics, Inc.",
+ "55.19",
+ "$1.85B",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ptct"
+ ],
+ [
+ "PTEN",
+ "Patterson-UTI Energy, Inc.",
+ "18.32",
+ "$2.68B",
+ "1993",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/pten"
+ ],
+ [
+ "PTIE",
+ "Pain Therapeutics",
+ "1.96",
+ "$89.68M",
+ "2000",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ptie"
+ ],
+ [
+ "PTLA",
+ "Portola Pharmaceuticals, Inc.",
+ "37.78",
+ "$1.84B",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ptla"
+ ],
+ [
+ "PTNR",
+ "Partner Communications Company Ltd.",
+ "3.83",
+ "$597.32M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/ptnr"
+ ],
+ [
+ "PTNT",
+ "Internet Patents Corporation",
+ "2.65",
+ "$20.54M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/ptnt"
+ ],
+ [
+ "PTRY",
+ "The Pantry, Inc.",
+ "36.69",
+ "$862.38M",
+ "1999",
+ "Consumer Durables",
+ "Automotive Aftermarket",
+ "http://www.nasdaq.com/symbol/ptry"
+ ],
+ [
+ "PTSI",
+ "P.A.M. Transportation Services, Inc.",
+ "56.31",
+ "$450.07M",
+ "1986",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/ptsi"
+ ],
+ [
+ "PTX",
+ "Pernix Therapeutics Holdings, Inc.",
+ "9.34",
+ "$357.64M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ptx"
+ ],
+ [
+ "PULB",
+ "Pulaski Financial Corp.",
+ "11.75",
+ "$141.75M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/pulb"
+ ],
+ [
+ "PUMP",
+ "Asante Solutions, Inc.",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/pump"
+ ],
+ [
+ "PVTB",
+ "PrivateBancorp, Inc.",
+ "35.16",
+ "$2.75B",
+ "1999",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pvtb"
+ ],
+ [
+ "PVTBP",
+ "PrivateBancorp, Inc.",
+ "27.92",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pvtbp"
+ ],
+ [
+ "PWOD",
+ "Penns Woods Bancorp, Inc.",
+ "46.51",
+ "$223.62M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/pwod"
+ ],
+ [
+ "PWRD",
+ "Perfect World Co., Ltd.",
+ "18.97",
+ "$943.23M",
+ "2007",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/pwrd"
+ ],
+ [
+ "PWX",
+ "Providence and Worcester Railroad Company",
+ "18.1501",
+ "$88.18M",
+ "n/a",
+ "Transportation",
+ "Railroads",
+ "http://www.nasdaq.com/symbol/pwx"
+ ],
+ [
+ "PXLW",
+ "Pixelworks, Inc.",
+ "5.4",
+ "$124.98M",
+ "2000",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/pxlw"
+ ],
+ [
+ "PZZA",
+ "Papa John'S International, Inc.",
+ "64.83",
+ "$2.6B",
+ "1993",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/pzza"
+ ],
+ [
+ "QABA",
+ "First Trust NASDAQ ABA Community Bank Index Fund",
+ "35.6099",
+ "$92.59M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/qaba"
+ ],
+ [
+ "QADA",
+ "QAD Inc.",
+ "20.32",
+ "$326.39M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/qada"
+ ],
+ [
+ "QADB",
+ "QAD Inc.",
+ "18.23",
+ "$292.82M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/qadb"
+ ],
+ [
+ "QAT",
+ "iShares MSCI Qatar Capped ETF",
+ "24.5",
+ "$33.08M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/qat"
+ ],
+ [
+ "QBAK",
+ "Qualstar Corporation",
+ "1.48",
+ "$18.13M",
+ "2000",
+ "Technology",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/qbak"
+ ],
+ [
+ "QCCO",
+ "QC Holdings, Inc.",
+ "1.6512",
+ "$28.91M",
+ "2004",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/qcco"
+ ],
+ [
+ "QCLN",
+ "First Trust NASDAQ Clean Edge US Liquid Series Index Fund",
+ "18.14",
+ "$117M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/qcln"
+ ],
+ [
+ "QCOM",
+ "QUALCOMM Incorporated",
+ "71.52",
+ "$117.98B",
+ "1991",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/qcom"
+ ],
+ [
+ "QCRH",
+ "QCR Holdings, Inc.",
+ "17.73",
+ "$140.81M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/qcrh"
+ ],
+ [
+ "QDEL",
+ "Quidel Corporation",
+ "25.6",
+ "$880.92M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/qdel"
+ ],
+ [
+ "QGEN",
+ "Qiagen N.V.",
+ "24.47",
+ "$5.68B",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/qgen"
+ ],
+ [
+ "QINC",
+ "First Trust RBA Quality Income ETF",
+ "21.7864",
+ "$5.45M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/qinc"
+ ],
+ [
+ "QIWI",
+ "QIWI plc",
+ "23.49",
+ "$1.23B",
+ "2013",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/qiwi"
+ ],
+ [
+ "QKLS",
+ "QKL Stores, Inc.",
+ "2.1499",
+ "$3.27M",
+ "n/a",
+ "Consumer Services",
+ "Food Chains",
+ "http://www.nasdaq.com/symbol/qkls"
+ ],
+ [
+ "QLGC",
+ "QLogic Corporation",
+ "14.545",
+ "$1.27B",
+ "n/a",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/qlgc"
+ ],
+ [
+ "QLIK",
+ "Qlik Technologies Inc.",
+ "31.5",
+ "$2.84B",
+ "2010",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/qlik"
+ ],
+ [
+ "QLTI",
+ "QLT Inc.",
+ "4.04",
+ "$207.05M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/qlti"
+ ],
+ [
+ "QLTY",
+ "Quality Distribution, Inc.",
+ "10.93",
+ "$306.69M",
+ "2003",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/qlty"
+ ],
+ [
+ "QLYS",
+ "Qualys, Inc.",
+ "47.89",
+ "$1.6B",
+ "2012",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/qlys"
+ ],
+ [
+ "QNST",
+ "QuinStreet, Inc.",
+ "6.34",
+ "$282.08M",
+ "2010",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/qnst"
+ ],
+ [
+ "QPACU",
+ "Quinpario Acquisition Corp. 2",
+ "10.06",
+ "n/a",
+ "2015",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/qpacu"
+ ],
+ [
+ "QQEW",
+ "First Trust NASDAQ-100 Equal Weighted Index Fund",
+ "44.54",
+ "$628.01M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/qqew"
+ ],
+ [
+ "QQQ",
+ "PowerShares QQQ Trust, Series 1",
+ "108.41",
+ "$40.04B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/qqq"
+ ],
+ [
+ "QQQC",
+ "Global X China Technology ETF",
+ "21.79",
+ "$17.43M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/qqqc"
+ ],
+ [
+ "QQQX",
+ "Nuveen NASDAQ 100 Dynamic Overwrite Fund",
+ "19.32",
+ "$357.61M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/qqqx"
+ ],
+ [
+ "QQXT",
+ "First Trust NASDAQ-100 Ex-Technology Sector Index Fund",
+ "41.803",
+ "$106.6M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/qqxt"
+ ],
+ [
+ "QRHC",
+ "Quest Resource Holding Corporation.",
+ "1.28",
+ "$142.85M",
+ "n/a",
+ "Technology",
+ "Diversified Commercial Services",
+ "http://www.nasdaq.com/symbol/qrhc"
+ ],
+ [
+ "QRVO",
+ "Qorvo, Inc.",
+ "65.17",
+ "$9.68B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/qrvo"
+ ],
+ [
+ "QSII",
+ "Quality Systems, Inc.",
+ "17.71",
+ "$1.07B",
+ "1982",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/qsii"
+ ],
+ [
+ "QTEC",
+ "First Trust NASDAQ-100 Technology Sector Index Fund",
+ "44.66",
+ "$363.98M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/qtec"
+ ],
+ [
+ "QTNT",
+ "Quotient Limited",
+ "16.95",
+ "$286.74M",
+ "2014",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/qtnt"
+ ],
+ [
+ "QTNTW",
+ "Quotient Limited",
+ "7",
+ "n/a",
+ "2014",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/qtntw"
+ ],
+ [
+ "QTWW",
+ "Quantum Fuel Systems Technologies Worldwide, Inc.",
+ "3.03",
+ "$84.47M",
+ "n/a",
+ "Capital Goods",
+ "Auto Parts:O.E.M.",
+ "http://www.nasdaq.com/symbol/qtww"
+ ],
+ [
+ "QUIK",
+ "QuickLogic Corporation",
+ "2.15",
+ "$120.1M",
+ "1999",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/quik"
+ ],
+ [
+ "QUMU",
+ "Qumu Corporation",
+ "14.6",
+ "$131.73M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/qumu"
+ ],
+ [
+ "QUNR",
+ "Qunar Cayman Islands Limited",
+ "28.82",
+ "$3.43B",
+ "2013",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/qunr"
+ ],
+ [
+ "QURE",
+ "uniQure N.V.",
+ "19.27",
+ "$343.79M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/qure"
+ ],
+ [
+ "QVCA",
+ "Liberty Interactive Corporation",
+ "29.23",
+ "$13.91B",
+ "n/a",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/qvca"
+ ],
+ [
+ "QVCB",
+ "Liberty Interactive Corporation",
+ "29.37",
+ "$13.98B",
+ "n/a",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/qvcb"
+ ],
+ [
+ "QYLD",
+ "Recon Capital NASDAQ-100 Covered Call ETF",
+ "23.78",
+ "$11.89M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/qyld"
+ ],
+ [
+ "RADA",
+ "Rada Electronics Industries Limited",
+ "2.34",
+ "$21.03M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/rada"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_22.json b/packages/flutter/example/stocks/data/stock_data_22.json
new file mode 100644
index 0000000..538c60a
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_22.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "RAIL",
+ "Freightcar America, Inc.",
+ "30.48",
+ "$367.8M",
+ "2005",
+ "Capital Goods",
+ "Railroads",
+ "http://www.nasdaq.com/symbol/rail"
+ ],
+ [
+ "RAND",
+ "Rand Capital Corporation",
+ "4.173",
+ "$26.54M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/rand"
+ ],
+ [
+ "RARE",
+ "Ultragenyx Pharmaceutical Inc.",
+ "55.57",
+ "$1.97B",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rare"
+ ],
+ [
+ "RAVE",
+ "Rave Restaurant Group, Inc.",
+ "12.51",
+ "$125.11M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Food Distributors",
+ "http://www.nasdaq.com/symbol/rave"
+ ],
+ [
+ "RAVN",
+ "Raven Industries, Inc.",
+ "20.87",
+ "$794.1M",
+ "n/a",
+ "Capital Goods",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/ravn"
+ ],
+ [
+ "RBCAA",
+ "Republic Bancorp, Inc.",
+ "23.87",
+ "$496.88M",
+ "1998",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/rbcaa"
+ ],
+ [
+ "RBCN",
+ "Rubicon Technology, Inc.",
+ "4.49",
+ "$117.42M",
+ "2007",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/rbcn"
+ ],
+ [
+ "RBPAA",
+ "Royal Bancshares of Pennsylvania, Inc.",
+ "1.8",
+ "$50.22M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/rbpaa"
+ ],
+ [
+ "RCII",
+ "Rent-A-Center Inc.",
+ "29.18",
+ "$1.54B",
+ "1995",
+ "Technology",
+ "Diversified Commercial Services",
+ "http://www.nasdaq.com/symbol/rcii"
+ ],
+ [
+ "RCKY",
+ "Rocky Brands, Inc.",
+ "20.16",
+ "$152.21M",
+ "1993",
+ "Consumer Non-Durables",
+ "Shoe Manufacturing",
+ "http://www.nasdaq.com/symbol/rcky"
+ ],
+ [
+ "RCMT",
+ "RCM Technologies, Inc.",
+ "5.8",
+ "$72.82M",
+ "n/a",
+ "Technology",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/rcmt"
+ ],
+ [
+ "RCON",
+ "Recon Technology, Ltd.",
+ "1.68",
+ "$7.94M",
+ "2009",
+ "Energy",
+ "Oilfield Services/Equipment",
+ "http://www.nasdaq.com/symbol/rcon"
+ ],
+ [
+ "RCPI",
+ "Rock Creek Pharmaceuticals, Inc.",
+ "0.148",
+ "$29.32M",
+ "n/a",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/rcpi"
+ ],
+ [
+ "RCPT",
+ "Receptos, Inc.",
+ "125.43",
+ "$3.95B",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rcpt"
+ ],
+ [
+ "RDCM",
+ "Radcom Ltd.",
+ "10.21",
+ "$82.43M",
+ "1997",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/rdcm"
+ ],
+ [
+ "RDEN",
+ "Elizabeth Arden, Inc.",
+ "16.75",
+ "$499.35M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Package Goods/Cosmetics",
+ "http://www.nasdaq.com/symbol/rden"
+ ],
+ [
+ "RDHL",
+ "Redhill Biopharma Ltd.",
+ "13.01",
+ "$113.69M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rdhl"
+ ],
+ [
+ "RDI",
+ "Reading International Inc",
+ "12.72",
+ "$297.4M",
+ "n/a",
+ "Consumer Services",
+ "Movies/Entertainment",
+ "http://www.nasdaq.com/symbol/rdi"
+ ],
+ [
+ "RDIB",
+ "Reading International Inc",
+ "12.66",
+ "$284.63M",
+ "n/a",
+ "Consumer Services",
+ "Movies/Entertainment",
+ "http://www.nasdaq.com/symbol/rdib"
+ ],
+ [
+ "RDNT",
+ "RadNet, Inc.",
+ "8.83",
+ "$377.14M",
+ "n/a",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/rdnt"
+ ],
+ [
+ "RDUS",
+ "Radius Health, Inc.",
+ "45.9",
+ "$1.72B",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rdus"
+ ],
+ [
+ "RDVY",
+ "First Trust NASDAQ Rising Dividend Achievers ETF",
+ "22.65",
+ "$7.93M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/rdvy"
+ ],
+ [
+ "RDWR",
+ "Radware Ltd.",
+ "21.11",
+ "$950.56M",
+ "1999",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/rdwr"
+ ],
+ [
+ "RECN",
+ "Resources Connection, Inc.",
+ "17.69",
+ "$665.95M",
+ "2000",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/recn"
+ ],
+ [
+ "REDF",
+ "Rediff.com India Limited",
+ "1.9016",
+ "$52.47M",
+ "n/a",
+ "Consumer Services",
+ "Newspapers/Magazines",
+ "http://www.nasdaq.com/symbol/redf"
+ ],
+ [
+ "REFR",
+ "Research Frontiers Incorporated",
+ "5.07",
+ "$121.3M",
+ "n/a",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/refr"
+ ],
+ [
+ "REGI",
+ "Renewable Energy Group, Inc.",
+ "8.96",
+ "$379.07M",
+ "2012",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/regi"
+ ],
+ [
+ "REGN",
+ "Regeneron Pharmaceuticals, Inc.",
+ "423.78",
+ "$43.49B",
+ "1991",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/regn"
+ ],
+ [
+ "REIS",
+ "Reis, Inc",
+ "23.75",
+ "$264.5M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/reis"
+ ],
+ [
+ "RELL",
+ "Richardson Electronics, Ltd.",
+ "9.31",
+ "$128.41M",
+ "1983",
+ "Consumer Non-Durables",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/rell"
+ ],
+ [
+ "RELV",
+ "Reliv' International, Inc.",
+ "1.18",
+ "$15.13M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/relv"
+ ],
+ [
+ "REMY",
+ "Remy International, Inc.",
+ "23.3",
+ "$745.49M",
+ "n/a",
+ "Capital Goods",
+ "Auto Parts:O.E.M.",
+ "http://www.nasdaq.com/symbol/remy"
+ ],
+ [
+ "RENT",
+ "Rentrak Corporation",
+ "53",
+ "$805.86M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/rent"
+ ],
+ [
+ "REPH",
+ "Recro Pharma, Inc.",
+ "3.2299",
+ "$24.89M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/reph"
+ ],
+ [
+ "RESN",
+ "Resonant Inc.",
+ "15.02",
+ "$103.76M",
+ "2014",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/resn"
+ ],
+ [
+ "REXI",
+ "Resource America, Inc.",
+ "8.96",
+ "$204.8M",
+ "n/a",
+ "Finance",
+ "Finance/Investors Services",
+ "http://www.nasdaq.com/symbol/rexi"
+ ],
+ [
+ "REXX",
+ "Rex Energy Corporation",
+ "4.87",
+ "$263.5M",
+ "2007",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/rexx"
+ ],
+ [
+ "RFIL",
+ "RF Industries, Ltd.",
+ "4.44",
+ "$37.78M",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/rfil"
+ ],
+ [
+ "RGCO",
+ "RGC Resources Inc.",
+ "21.51",
+ "$101.58M",
+ "n/a",
+ "Public Utilities",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/rgco"
+ ],
+ [
+ "RGDO",
+ "Regado BioSciences, Inc.",
+ "1.13",
+ "$37.98M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rgdo"
+ ],
+ [
+ "RGDX",
+ "Response Genetics, Inc.",
+ "0.54",
+ "$20.94M",
+ "2007",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/rgdx"
+ ],
+ [
+ "RGEN",
+ "Repligen Corporation",
+ "25.45",
+ "$832.77M",
+ "1986",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/rgen"
+ ],
+ [
+ "RGLD",
+ "Royal Gold, Inc.",
+ "69.99",
+ "$4.54B",
+ "n/a",
+ "Basic Industries",
+ "Precious Metals",
+ "http://www.nasdaq.com/symbol/rgld"
+ ],
+ [
+ "RGLS",
+ "Regulus Therapeutics Inc.",
+ "18.7",
+ "$944.66M",
+ "2012",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rgls"
+ ],
+ [
+ "RGSE",
+ "Real Goods Solar, Inc.",
+ "0.48",
+ "$24.97M",
+ "n/a",
+ "Basic Industries",
+ "Engineering & Construction",
+ "http://www.nasdaq.com/symbol/rgse"
+ ],
+ [
+ "RIBT",
+ "RiceBran Technologies",
+ "4.13",
+ "$38.71M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/ribt"
+ ],
+ [
+ "RIBTW",
+ "RiceBran Technologies",
+ "1.07",
+ "n/a",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/ribtw"
+ ],
+ [
+ "RICK",
+ "RCI Hospitality Holdings, Inc.",
+ "10.44",
+ "$107.48M",
+ "1995",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/rick"
+ ],
+ [
+ "RIGL",
+ "Rigel Pharmaceuticals, Inc.",
+ "2.55",
+ "$223.87M",
+ "2000",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rigl"
+ ],
+ [
+ "RITT",
+ "RIT Technologies Ltd.",
+ "1.31",
+ "$20.36M",
+ "1997",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/ritt"
+ ],
+ [
+ "RITTW",
+ "RIT Technologies Ltd.",
+ "0.2999",
+ "n/a",
+ "n/a",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/rittw"
+ ],
+ [
+ "RIVR",
+ "River Valley Bancorp.",
+ "21.35",
+ "$53.67M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/rivr"
+ ],
+ [
+ "RJET",
+ "Republic Airways Holdings, Inc.",
+ "14.51",
+ "$722.4M",
+ "2004",
+ "Transportation",
+ "Air Freight/Delivery Services",
+ "http://www.nasdaq.com/symbol/rjet"
+ ],
+ [
+ "RLJE",
+ "RLJ Entertainment, Inc.",
+ "1.8",
+ "$24.05M",
+ "n/a",
+ "Consumer Services",
+ "Movies/Entertainment",
+ "http://www.nasdaq.com/symbol/rlje"
+ ],
+ [
+ "RLOC",
+ "ReachLocal, Inc.",
+ "3.23",
+ "$94.21M",
+ "2010",
+ "Technology",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/rloc"
+ ],
+ [
+ "RLOG",
+ "Rand Logistics, Inc.",
+ "3.61",
+ "$65.03M",
+ "n/a",
+ "Consumer Services",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/rlog"
+ ],
+ [
+ "RLYP",
+ "Relypsa, Inc.",
+ "35.25",
+ "$1.21B",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rlyp"
+ ],
+ [
+ "RMBS",
+ "Rambus, Inc.",
+ "12.06",
+ "$1.38B",
+ "1997",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/rmbs"
+ ],
+ [
+ "RMCF",
+ "Rocky Mountain Chocolate Factory, Inc.",
+ "14.54",
+ "$88.59M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Specialty Foods",
+ "http://www.nasdaq.com/symbol/rmcf"
+ ],
+ [
+ "RMGN",
+ "RMG Networks Holding Corporation",
+ "1.15",
+ "$13.99M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/rmgn"
+ ],
+ [
+ "RMTI",
+ "Rockwell Medical, Inc.",
+ "10.7",
+ "$536.11M",
+ "1998",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/rmti"
+ ],
+ [
+ "RNET",
+ "RigNet, Inc.",
+ "36.74",
+ "$647.16M",
+ "2010",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/rnet"
+ ],
+ [
+ "RNST",
+ "Renasant Corporation",
+ "28.28",
+ "$891.82M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/rnst"
+ ],
+ [
+ "RNWK",
+ "RealNetworks, Inc.",
+ "6.99",
+ "$251.88M",
+ "1997",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/rnwk"
+ ],
+ [
+ "ROBO",
+ "Robo-Stox Global Robotics & Automation Index ETF",
+ "26.22",
+ "$102.26M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/robo"
+ ],
+ [
+ "ROCK",
+ "Gibraltar Industries, Inc.",
+ "16.16",
+ "$499.42M",
+ "1993",
+ "Capital Goods",
+ "Steel/Iron Ore",
+ "http://www.nasdaq.com/symbol/rock"
+ ],
+ [
+ "ROIA",
+ "Radio One, Inc.",
+ "2.93",
+ "$146.92M",
+ "1999",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/roia"
+ ],
+ [
+ "ROIAK",
+ "Radio One, Inc.",
+ "2.9",
+ "$145.41M",
+ "n/a",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/roiak"
+ ],
+ [
+ "ROIC",
+ "Retail Opportunity Investments Corp.",
+ "16.93",
+ "$1.57B",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/roic"
+ ],
+ [
+ "ROIQ",
+ "ROI Acquisition Corp. II",
+ "9.74",
+ "$152.19M",
+ "2013",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/roiq"
+ ],
+ [
+ "ROIQU",
+ "ROI Acquisition Corp. II",
+ "9.81",
+ "$122.63M",
+ "2013",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/roiqu"
+ ],
+ [
+ "ROIQW",
+ "ROI Acquisition Corp. II",
+ "0.26",
+ "n/a",
+ "2013",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/roiqw"
+ ],
+ [
+ "ROKA",
+ "Roka Bioscience, Inc.",
+ "4.14",
+ "$73.11M",
+ "2014",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/roka"
+ ],
+ [
+ "ROLL",
+ "RBC Bearings Incorporated",
+ "60.83",
+ "$1.42B",
+ "2005",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/roll"
+ ],
+ [
+ "ROSE",
+ "Rosetta Resources Inc.",
+ "23.04",
+ "$1.42B",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/rose"
+ ],
+ [
+ "ROSG",
+ "Rosetta Genomics Ltd.",
+ "3.68",
+ "$43.29M",
+ "2007",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rosg"
+ ],
+ [
+ "ROST",
+ "Ross Stores, Inc.",
+ "97.92",
+ "$20.41B",
+ "1985",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/rost"
+ ],
+ [
+ "ROVI",
+ "Rovi Corporation",
+ "23.85",
+ "$2.19B",
+ "n/a",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/rovi"
+ ],
+ [
+ "ROYL",
+ "Royale Energy, Inc.",
+ "1.79",
+ "$26.75M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/royl"
+ ],
+ [
+ "RP",
+ "RealPage, Inc.",
+ "19.7",
+ "$1.55B",
+ "2010",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/rp"
+ ],
+ [
+ "RPRX",
+ "Repros Therapeutics Inc.",
+ "9.27",
+ "$225.04M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/rprx"
+ ],
+ [
+ "RPRXW",
+ "Repros Therapeutics Inc.",
+ "8.46",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/rprxw"
+ ],
+ [
+ "RPRXZ",
+ "Repros Therapeutics Inc.",
+ "6.0227",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/rprxz"
+ ],
+ [
+ "RPTP",
+ "Raptor Pharmaceutical Corp.",
+ "9.89",
+ "$628.65M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rptp"
+ ],
+ [
+ "RPXC",
+ "RPX Corporation",
+ "14.1",
+ "$760.54M",
+ "2011",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/rpxc"
+ ],
+ [
+ "RRD",
+ "R.R. Donnelley & Sons Company",
+ "18.07",
+ "$3.61B",
+ "n/a",
+ "Miscellaneous",
+ "Publishing",
+ "http://www.nasdaq.com/symbol/rrd"
+ ],
+ [
+ "RRGB",
+ "Red Robin Gourmet Burgers, Inc.",
+ "80.64",
+ "$1.13B",
+ "2002",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/rrgb"
+ ],
+ [
+ "RRM",
+ "RR Media Ltd.",
+ "7.48",
+ "$130.13M",
+ "n/a",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/rrm"
+ ],
+ [
+ "RSTI",
+ "Rofin-Sinar Technologies, Inc.",
+ "23.96",
+ "$673.1M",
+ "1996",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/rsti"
+ ],
+ [
+ "RSYS",
+ "RadiSys Corporation",
+ "2.25",
+ "$82.08M",
+ "1995",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/rsys"
+ ],
+ [
+ "RTGN",
+ "Ruthigen, Inc.",
+ "4.06",
+ "$19.51M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rtgn"
+ ],
+ [
+ "RTIX",
+ "RTI Surgical, Inc.",
+ "5.32",
+ "$302.7M",
+ "2000",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/rtix"
+ ],
+ [
+ "RTK",
+ "Rentech, Inc.",
+ "1.27",
+ "$290.18M",
+ "1991",
+ "Basic Industries",
+ "Agricultural Chemicals",
+ "http://www.nasdaq.com/symbol/rtk"
+ ],
+ [
+ "RTRX",
+ "Retrophin, Inc.",
+ "14.5",
+ "$387.15M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rtrx"
+ ],
+ [
+ "RUSHA",
+ "Rush Enterprises, Inc.",
+ "28.96",
+ "$1.16B",
+ "n/a",
+ "Consumer Durables",
+ "Automotive Aftermarket",
+ "http://www.nasdaq.com/symbol/rusha"
+ ],
+ [
+ "RUSHB",
+ "Rush Enterprises, Inc.",
+ "26",
+ "$1.04B",
+ "n/a",
+ "Consumer Durables",
+ "Automotive Aftermarket",
+ "http://www.nasdaq.com/symbol/rushb"
+ ],
+ [
+ "RUTH",
+ "Ruth's Hospitality Group, Inc.",
+ "15.38",
+ "$543.78M",
+ "2005",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/ruth"
+ ],
+ [
+ "RVBD",
+ "Riverbed Technology, Inc.",
+ "20.88",
+ "$3.29B",
+ "2006",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/rvbd"
+ ],
+ [
+ "RVLT",
+ "Revolution Lighting Technologies, Inc.",
+ "1.13",
+ "$96.61M",
+ "n/a",
+ "Consumer Durables",
+ "Building Products",
+ "http://www.nasdaq.com/symbol/rvlt"
+ ],
+ [
+ "RVNC",
+ "Revance Therapeutics, Inc.",
+ "15.76",
+ "$373.83M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rvnc"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_23.json b/packages/flutter/example/stocks/data/stock_data_23.json
new file mode 100644
index 0000000..0409ff4
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_23.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "RVSB",
+ "Riverview Bancorp Inc",
+ "4.41",
+ "$99.1M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/rvsb"
+ ],
+ [
+ "RWLK",
+ "ReWalk Robotics Ltd",
+ "16.17",
+ "$193.69M",
+ "2014",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/rwlk"
+ ],
+ [
+ "RXDX",
+ "Ignyta, Inc.",
+ "7.17",
+ "$140.39M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rxdx"
+ ],
+ [
+ "RXII",
+ "RXI Pharmaceuticals Corporation",
+ "1.15",
+ "$24.3M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/rxii"
+ ],
+ [
+ "RYAAY",
+ "Ryanair Holdings plc",
+ "64.25",
+ "$17.83B",
+ "1997",
+ "Transportation",
+ "Air Freight/Delivery Services",
+ "http://www.nasdaq.com/symbol/ryaay"
+ ],
+ [
+ "SAAS",
+ "inContact, Inc.",
+ "11.24",
+ "$685.58M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/saas"
+ ],
+ [
+ "SABR",
+ "Sabre Corporation",
+ "21.23",
+ "$5.69B",
+ "2014",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/sabr"
+ ],
+ [
+ "SAEX",
+ "SAExploration Holdings, Inc.",
+ "3.37",
+ "$50.11M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/saex"
+ ],
+ [
+ "SAFM",
+ "Sanderson Farms, Inc.",
+ "83.39",
+ "$1.93B",
+ "1987",
+ "Consumer Non-Durables",
+ "Meat/Poultry/Fish",
+ "http://www.nasdaq.com/symbol/safm"
+ ],
+ [
+ "SAFT",
+ "Safety Insurance Group, Inc.",
+ "61.95",
+ "$929.82M",
+ "2002",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/saft"
+ ],
+ [
+ "SAGE",
+ "Sage Therapeutics, Inc.",
+ "42.5",
+ "$1.1B",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/sage"
+ ],
+ [
+ "SAIA",
+ "Saia, Inc.",
+ "46.14",
+ "$1.14B",
+ "n/a",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/saia"
+ ],
+ [
+ "SAJA",
+ "Sajan, Inc.",
+ "5.75",
+ "$27.45M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/saja"
+ ],
+ [
+ "SAL",
+ "Salisbury Bancorp, Inc.",
+ "30.1799",
+ "$51.71M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/sal"
+ ],
+ [
+ "SALE",
+ "RetailMeNot, Inc.",
+ "17.2",
+ "$929.95M",
+ "2013",
+ "Consumer Services",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/sale"
+ ],
+ [
+ "SALM",
+ "Salem Communications Corporation",
+ "7.37",
+ "$186.24M",
+ "1999",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/salm"
+ ],
+ [
+ "SAMG",
+ "Silvercrest Asset Management Group Inc.",
+ "14.02",
+ "$171.44M",
+ "2013",
+ "Finance",
+ "Investment Managers",
+ "http://www.nasdaq.com/symbol/samg"
+ ],
+ [
+ "SANM",
+ "Sanmina Corporation",
+ "23",
+ "$1.91B",
+ "1993",
+ "Technology",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/sanm"
+ ],
+ [
+ "SANW",
+ "S&W Seed Company",
+ "4.91",
+ "n/a",
+ "n/a",
+ "Consumer Non-Durables",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/sanw"
+ ],
+ [
+ "SANWZ",
+ "S&W Seed Company",
+ "0.1201",
+ "n/a",
+ "n/a",
+ "Consumer Non-Durables",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/sanwz"
+ ],
+ [
+ "SASR",
+ "Sandy Spring Bancorp, Inc.",
+ "25.94",
+ "$649.56M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sasr"
+ ],
+ [
+ "SATS",
+ "EchoStar Corporation",
+ "55.31",
+ "$2.43B",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/sats"
+ ],
+ [
+ "SAVE",
+ "Spirit Airlines, Inc.",
+ "81.77",
+ "$5.95B",
+ "2011",
+ "Transportation",
+ "Air Freight/Delivery Services",
+ "http://www.nasdaq.com/symbol/save"
+ ],
+ [
+ "SBAC",
+ "SBA Communications Corporation",
+ "121.25",
+ "$15.65B",
+ "1999",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/sbac"
+ ],
+ [
+ "SBBX",
+ "Sussex Bancorp",
+ "10.25",
+ "$47.81M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sbbx"
+ ],
+ [
+ "SBCF",
+ "Seacoast Banking Corporation of Florida",
+ "12.97",
+ "$429.56M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sbcf"
+ ],
+ [
+ "SBCP",
+ "Sunshine Bancorp, Inc.",
+ "12.08",
+ "$51.12M",
+ "2014",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/sbcp"
+ ],
+ [
+ "SBFG",
+ "SB Financial Group, Inc.",
+ "10.5",
+ "$51.19M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sbfg"
+ ],
+ [
+ "SBFGP",
+ "SB Financial Group, Inc.",
+ "11",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sbfgp"
+ ],
+ [
+ "SBGI",
+ "Sinclair Broadcast Group, Inc.",
+ "27.9",
+ "$2.67B",
+ "1995",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/sbgi"
+ ],
+ [
+ "SBLK",
+ "Star Bulk Carriers Corp.",
+ "4.5",
+ "$712.92M",
+ "n/a",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/sblk"
+ ],
+ [
+ "SBLKL",
+ "Star Bulk Carriers Corp.",
+ "22.4499",
+ "n/a",
+ "n/a",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/sblkl"
+ ],
+ [
+ "SBNY",
+ "Signature Bank",
+ "125.7",
+ "$6.32B",
+ "2004",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sbny"
+ ],
+ [
+ "SBNYW",
+ "Signature Bank",
+ "89.18",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sbnyw"
+ ],
+ [
+ "SBRA",
+ "Sabra Healthcare REIT, Inc.",
+ "32.52",
+ "$1.93B",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/sbra"
+ ],
+ [
+ "SBRAP",
+ "Sabra Healthcare REIT, Inc.",
+ "26.25",
+ "$150.94M",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/sbrap"
+ ],
+ [
+ "SBSA",
+ "Spanish Broadcasting System, Inc.",
+ "3.27",
+ "$21.28M",
+ "1999",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/sbsa"
+ ],
+ [
+ "SBSI",
+ "Southside Bancshares, Inc.",
+ "29.64",
+ "$560.71M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sbsi"
+ ],
+ [
+ "SBUX",
+ "Starbucks Corporation",
+ "93.51",
+ "$70.11B",
+ "1992",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/sbux"
+ ],
+ [
+ "SCAI",
+ "Surgical Care Affiliates, Inc.",
+ "32.48",
+ "$1.25B",
+ "2013",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/scai"
+ ],
+ [
+ "SCHL",
+ "Scholastic Corporation",
+ "36.99",
+ "$1.21B",
+ "1992",
+ "Consumer Services",
+ "Books",
+ "http://www.nasdaq.com/symbol/schl"
+ ],
+ [
+ "SCHN",
+ "Schnitzer Steel Industries, Inc.",
+ "16.36",
+ "$438.19M",
+ "1993",
+ "Consumer Durables",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/schn"
+ ],
+ [
+ "SCLN",
+ "SciClone Pharmaceuticals, Inc.",
+ "7.68",
+ "$389.94M",
+ "1992",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/scln"
+ ],
+ [
+ "SCMP",
+ "Sucampo Pharmaceuticals, Inc.",
+ "15.02",
+ "$673.24M",
+ "2007",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/scmp"
+ ],
+ [
+ "SCOK",
+ "SinoCoking Coal and Coke Chemical Industries, Inc",
+ "2.74",
+ "$65.65M",
+ "n/a",
+ "Basic Industries",
+ "Steel/Iron Ore",
+ "http://www.nasdaq.com/symbol/scok"
+ ],
+ [
+ "SCON",
+ "Superconductor Technologies Inc.",
+ "2.09",
+ "$27.69M",
+ "1993",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/scon"
+ ],
+ [
+ "SCOR",
+ "comScore, Inc.",
+ "51.44",
+ "$1.76B",
+ "2007",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/scor"
+ ],
+ [
+ "SCSC",
+ "ScanSource, Inc.",
+ "36.79",
+ "$1.05B",
+ "n/a",
+ "Technology",
+ "Retail: Computer Software & Peripheral Equipment",
+ "http://www.nasdaq.com/symbol/scsc"
+ ],
+ [
+ "SCSS",
+ "Select Comfort Corporation",
+ "31.32",
+ "$1.67B",
+ "1998",
+ "Consumer Durables",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/scss"
+ ],
+ [
+ "SCTY",
+ "SolarCity Corporation",
+ "54.44",
+ "$5.23B",
+ "2012",
+ "Basic Industries",
+ "Engineering & Construction",
+ "http://www.nasdaq.com/symbol/scty"
+ ],
+ [
+ "SCVL",
+ "Shoe Carnival, Inc.",
+ "23.69",
+ "$480.58M",
+ "1993",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/scvl"
+ ],
+ [
+ "SCYX",
+ "SCYNEXIS, Inc.",
+ "9.2",
+ "$78.31M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/scyx"
+ ],
+ [
+ "SEAC",
+ "SeaChange International, Inc.",
+ "7.69",
+ "$251.11M",
+ "1996",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/seac"
+ ],
+ [
+ "SEED",
+ "Origin Agritech Limited",
+ "1.35",
+ "$30.7M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/seed"
+ ],
+ [
+ "SEIC",
+ "SEI Investments Company",
+ "43.37",
+ "$7.25B",
+ "1981",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/seic"
+ ],
+ [
+ "SEMI",
+ "SunEdison Semiconductor Limited",
+ "21.5",
+ "$892.38M",
+ "2014",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/semi"
+ ],
+ [
+ "SENEA",
+ "Seneca Foods Corp.",
+ "27.25",
+ "$292.48M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/senea"
+ ],
+ [
+ "SENEB",
+ "Seneca Foods Corp.",
+ "38",
+ "$407.86M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/seneb"
+ ],
+ [
+ "SEV",
+ "Sevcon, Inc.",
+ "7.39",
+ "$26.98M",
+ "n/a",
+ "Energy",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/sev"
+ ],
+ [
+ "SFBC",
+ "Sound Financial Bancorp, Inc.",
+ "18.9",
+ "$47.59M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/sfbc"
+ ],
+ [
+ "SFBS",
+ "ServisFirst Bancshares, Inc.",
+ "31.06",
+ "$770.02M",
+ "2014",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sfbs"
+ ],
+ [
+ "SFLY",
+ "Shutterfly, Inc.",
+ "45.77",
+ "$1.73B",
+ "2006",
+ "Miscellaneous",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/sfly"
+ ],
+ [
+ "SFM",
+ "Sprouts Farmers Market, Inc.",
+ "37.48",
+ "$5.67B",
+ "2013",
+ "Consumer Services",
+ "Food Chains",
+ "http://www.nasdaq.com/symbol/sfm"
+ ],
+ [
+ "SFNC",
+ "Simmons First National Corporation",
+ "39.79",
+ "$717.1M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sfnc"
+ ],
+ [
+ "SFST",
+ "Southern First Bancshares, Inc.",
+ "16.8001",
+ "$81.24M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sfst"
+ ],
+ [
+ "SFXE",
+ "SFX Entertainment, Inc.",
+ "3.53",
+ "$319.7M",
+ "2013",
+ "Consumer Services",
+ "Services-Misc. Amusement & Recreation",
+ "http://www.nasdaq.com/symbol/sfxe"
+ ],
+ [
+ "SGBK",
+ "Stonegate Bank",
+ "28.33",
+ "$290.23M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/sgbk"
+ ],
+ [
+ "SGC",
+ "Superior Uniform Group, Inc.",
+ "18.27",
+ "$491.39M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/sgc"
+ ],
+ [
+ "SGEN",
+ "Seattle Genetics, Inc.",
+ "34.96",
+ "$4.33B",
+ "2001",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/sgen"
+ ],
+ [
+ "SGI",
+ "Silicon Graphics International Corp",
+ "9.2",
+ "$316.69M",
+ "n/a",
+ "Technology",
+ "Computer Manufacturing",
+ "http://www.nasdaq.com/symbol/sgi"
+ ],
+ [
+ "SGMA",
+ "SigmaTron International, Inc.",
+ "6.7",
+ "$27.16M",
+ "1994",
+ "Technology",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/sgma"
+ ],
+ [
+ "SGMO",
+ "Sangamo BioSciences, Inc.",
+ "16.945",
+ "$1.16B",
+ "2000",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/sgmo"
+ ],
+ [
+ "SGMS",
+ "Scientific Games Corp",
+ "13.75",
+ "$1.17B",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/sgms"
+ ],
+ [
+ "SGNL",
+ "Signal Genetics, Inc.",
+ "2.57",
+ "$9.72M",
+ "2014",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/sgnl"
+ ],
+ [
+ "SGNT",
+ "Sagent Pharmaceuticals, Inc.",
+ "28.49",
+ "$909.12M",
+ "2011",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/sgnt"
+ ],
+ [
+ "SGOC",
+ "SGOCO Group, Ltd",
+ "0.52",
+ "$9.06M",
+ "2010",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/sgoc"
+ ],
+ [
+ "SGRP",
+ "SPAR Group, Inc.",
+ "1.47",
+ "$30.22M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/sgrp"
+ ],
+ [
+ "SGYP",
+ "Synergy Pharmaceuticals, Inc.",
+ "2.87",
+ "$277.27M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/sgyp"
+ ],
+ [
+ "SGYPU",
+ "Synergy Pharmaceuticals, Inc.",
+ "6.48",
+ "$11.78M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/sgypu"
+ ],
+ [
+ "SGYPW",
+ "Synergy Pharmaceuticals, Inc.",
+ "0.7399",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/sgypw"
+ ],
+ [
+ "SHBI",
+ "Shore Bancshares Inc",
+ "9.35",
+ "$117.95M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/shbi"
+ ],
+ [
+ "SHEN",
+ "Shenandoah Telecommunications Co",
+ "29.71",
+ "$716.4M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/shen"
+ ],
+ [
+ "SHIP",
+ "Seanergy Maritime Holdings Corp",
+ "0.7856",
+ "$9.4M",
+ "n/a",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/ship"
+ ],
+ [
+ "SHLD",
+ "Sears Holdings Corporation",
+ "36.66",
+ "$3.9B",
+ "n/a",
+ "Consumer Services",
+ "Department/Specialty Retail Stores",
+ "http://www.nasdaq.com/symbol/shld"
+ ],
+ [
+ "SHLDW",
+ "Sears Holdings Corporation",
+ "24.17",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Department/Specialty Retail Stores",
+ "http://www.nasdaq.com/symbol/shldw"
+ ],
+ [
+ "SHLM",
+ "A. Schulman, Inc.",
+ "40.3",
+ "$1.17B",
+ "1972",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/shlm"
+ ],
+ [
+ "SHLO",
+ "Shiloh Industries, Inc.",
+ "12.63",
+ "$217.49M",
+ "1993",
+ "Capital Goods",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/shlo"
+ ],
+ [
+ "SHOO",
+ "Steven Madden, Ltd.",
+ "34.15",
+ "$2.19B",
+ "1993",
+ "Consumer Non-Durables",
+ "Shoe Manufacturing",
+ "http://www.nasdaq.com/symbol/shoo"
+ ],
+ [
+ "SHOR",
+ "ShoreTel, Inc.",
+ "7.56",
+ "$485.05M",
+ "2007",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/shor"
+ ],
+ [
+ "SHOS",
+ "Sears Hometown and Outlet Stores, Inc.",
+ "13",
+ "$295.57M",
+ "n/a",
+ "Consumer Services",
+ "Department/Specialty Retail Stores",
+ "http://www.nasdaq.com/symbol/shos"
+ ],
+ [
+ "SHPG",
+ "Shire plc",
+ "237.29",
+ "$47.35B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/shpg"
+ ],
+ [
+ "SIAL",
+ "Sigma-Aldrich Corporation",
+ "138.75",
+ "$16.57B",
+ "n/a",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/sial"
+ ],
+ [
+ "SIBC",
+ "State Investors Bancorp, Inc.",
+ "20.91",
+ "$48.26M",
+ "2011",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/sibc"
+ ],
+ [
+ "SIEB",
+ "Siebert Financial Corp.",
+ "1.71",
+ "$37.77M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/sieb"
+ ],
+ [
+ "SIEN",
+ "Sientra, Inc.",
+ "17.56",
+ "$261.87M",
+ "2014",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/sien"
+ ],
+ [
+ "SIFI",
+ "SI Financial Group, Inc.",
+ "11.49",
+ "$146.88M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/sifi"
+ ],
+ [
+ "SIFY",
+ "Sify Technologies Limited",
+ "1.38",
+ "$246.37M",
+ "n/a",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/sify"
+ ],
+ [
+ "SIGA",
+ "SIGA Technologies Inc.",
+ "2.06",
+ "$110.22M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/siga"
+ ],
+ [
+ "SIGI",
+ "Selective Insurance Group, Inc.",
+ "27.72",
+ "$1.56B",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/sigi"
+ ],
+ [
+ "SIGM",
+ "Sigma Designs, Inc.",
+ "6.81",
+ "$237.92M",
+ "1986",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/sigm"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_24.json b/packages/flutter/example/stocks/data/stock_data_24.json
new file mode 100644
index 0000000..dfbf5f2
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_24.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "SILC",
+ "Silicom Ltd",
+ "47.22",
+ "$340.86M",
+ "n/a",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/silc"
+ ],
+ [
+ "SIMG",
+ "Silicon Image, Inc.",
+ "7.245",
+ "$560.74M",
+ "1999",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/simg"
+ ],
+ [
+ "SIMO",
+ "Silicon Motion Technology Corporation",
+ "29.69",
+ "$977.03M",
+ "2005",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/simo"
+ ],
+ [
+ "SINA",
+ "Sina Corporation",
+ "37.83",
+ "$2.5B",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/sina"
+ ],
+ [
+ "SINO",
+ "Sino-Global Shipping America, Ltd.",
+ "1.5",
+ "$9.3M",
+ "n/a",
+ "Transportation",
+ "Oil Refining/Marketing",
+ "http://www.nasdaq.com/symbol/sino"
+ ],
+ [
+ "SIRI",
+ "Sirius XM Holdings Inc.",
+ "3.86",
+ "$21.54B",
+ "n/a",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/siri"
+ ],
+ [
+ "SIRO",
+ "Sirona Dental Systems, Inc.",
+ "91.49",
+ "$5.3B",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/siro"
+ ],
+ [
+ "SIVB",
+ "SVB Financial Group",
+ "123.08",
+ "$6.26B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sivb"
+ ],
+ [
+ "SIVBO",
+ "SVB Financial Group",
+ "25.75",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sivbo"
+ ],
+ [
+ "SIXD",
+ "6D Global Technologies, Inc.",
+ "8.52",
+ "$660.94M",
+ "n/a",
+ "Consumer Services",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/sixd"
+ ],
+ [
+ "SKBI",
+ "Skystar Bio-Pharmaceutical Company",
+ "4.28",
+ "$37.22M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/skbi"
+ ],
+ [
+ "SKIS",
+ "Peak Resorts, Inc.",
+ "7.25",
+ "$101.37M",
+ "2014",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/skis"
+ ],
+ [
+ "SKOR",
+ "FlexShares Credit-Scored US Corporate Bond Index Fund",
+ "50.63",
+ "$12.66M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/skor"
+ ],
+ [
+ "SKUL",
+ "Skullcandy, Inc.",
+ "10.17",
+ "$286.12M",
+ "2011",
+ "Consumer Non-Durables",
+ "Consumer Electronics/Appliances",
+ "http://www.nasdaq.com/symbol/skul"
+ ],
+ [
+ "SKYS",
+ "Sky Solar Holdings, Ltd.",
+ "11.296",
+ "$541.36M",
+ "2014",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/skys"
+ ],
+ [
+ "SKYW",
+ "SkyWest, Inc.",
+ "13.95",
+ "$716.16M",
+ "1986",
+ "Transportation",
+ "Air Freight/Delivery Services",
+ "http://www.nasdaq.com/symbol/skyw"
+ ],
+ [
+ "SKYY",
+ "First Trust ISE Cloud Computing Index Fund",
+ "29.72",
+ "$425M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/skyy"
+ ],
+ [
+ "SLAB",
+ "Silicon Laboratories, Inc.",
+ "49.9",
+ "$2.1B",
+ "2000",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/slab"
+ ],
+ [
+ "SLCT",
+ "Select Bancorp, Inc.",
+ "6.96",
+ "$79.19M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/slct"
+ ],
+ [
+ "SLGN",
+ "Silgan Holdings Inc.",
+ "57.04",
+ "$3.61B",
+ "1997",
+ "Consumer Durables",
+ "Containers/Packaging",
+ "http://www.nasdaq.com/symbol/slgn"
+ ],
+ [
+ "SLM",
+ "SLM Corporation",
+ "9.36",
+ "$3.96B",
+ "n/a",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/slm"
+ ],
+ [
+ "SLMAP",
+ "SLM Corporation",
+ "49.2525",
+ "$162.53M",
+ "n/a",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/slmap"
+ ],
+ [
+ "SLMBP",
+ "SLM Corporation",
+ "65.3",
+ "$261.2M",
+ "n/a",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/slmbp"
+ ],
+ [
+ "SLP",
+ "Simulations Plus, Inc.",
+ "6.27",
+ "$105.66M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/slp"
+ ],
+ [
+ "SLRC",
+ "Solar Capital Ltd.",
+ "19.58",
+ "$831.47M",
+ "2010",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/slrc"
+ ],
+ [
+ "SLTC",
+ "Selectica, Inc.",
+ "5.2",
+ "$40.91M",
+ "2000",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/sltc"
+ ],
+ [
+ "SLVO",
+ "Credit Suisse Silver Shares Covered Call ETN",
+ "11.3468",
+ "$9.64M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/slvo"
+ ],
+ [
+ "SLXP",
+ "Salix Pharmaceuticals, Ltd.",
+ "157.85",
+ "$10.06B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/slxp"
+ ],
+ [
+ "SMAC",
+ "Sino Mercury Acquisition Corp.",
+ "9.92",
+ "$52.68M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/smac"
+ ],
+ [
+ "SMACR",
+ "Sino Mercury Acquisition Corp.",
+ "0.29",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/smacr"
+ ],
+ [
+ "SMACU",
+ "Sino Mercury Acquisition Corp.",
+ "10.0405",
+ "$42.27M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/smacu"
+ ],
+ [
+ "SMBC",
+ "Southern Missouri Bancorp, Inc.",
+ "18.58",
+ "$137.71M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/smbc"
+ ],
+ [
+ "SMCI",
+ "Super Micro Computer, Inc.",
+ "39.24",
+ "$1.83B",
+ "2007",
+ "Technology",
+ "Computer Manufacturing",
+ "http://www.nasdaq.com/symbol/smci"
+ ],
+ [
+ "SMED",
+ "Sharps Compliance Corp",
+ "5.05",
+ "$78.45M",
+ "n/a",
+ "Basic Industries",
+ "Environmental Services",
+ "http://www.nasdaq.com/symbol/smed"
+ ],
+ [
+ "SMIT",
+ "Schmitt Industries, Inc.",
+ "2.66",
+ "$7.97M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/smit"
+ ],
+ [
+ "SMLR",
+ "Semler Scientific, Inc.",
+ "4.875",
+ "$22.99M",
+ "2014",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/smlr"
+ ],
+ [
+ "SMMF",
+ "Summit Financial Group, Inc.",
+ "11.42",
+ "$85.19M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/smmf"
+ ],
+ [
+ "SMPL",
+ "Simplicity Bancorp Inc.",
+ "17.3",
+ "$128.02M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/smpl"
+ ],
+ [
+ "SMRT",
+ "Stein Mart, Inc.",
+ "16.2",
+ "$728.03M",
+ "1992",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/smrt"
+ ],
+ [
+ "SMSI",
+ "Smith Micro Software, Inc.",
+ "1.46",
+ "$65.78M",
+ "1995",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/smsi"
+ ],
+ [
+ "SMT",
+ "SMART Technologies Inc.",
+ "1.24",
+ "$151.51M",
+ "n/a",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/smt"
+ ],
+ [
+ "SMTC",
+ "Semtech Corporation",
+ "27.58",
+ "$1.84B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/smtc"
+ ],
+ [
+ "SMTP",
+ "SMTP, Inc.",
+ "5.06",
+ "$27.56M",
+ "n/a",
+ "Technology",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/smtp"
+ ],
+ [
+ "SMTX",
+ "SMTC Corporation",
+ "1.53",
+ "$25.12M",
+ "2000",
+ "Technology",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/smtx"
+ ],
+ [
+ "SNAK",
+ "Inventure Foods, Inc.",
+ "10.72",
+ "$209.44M",
+ "1996",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/snak"
+ ],
+ [
+ "SNBC",
+ "Sun Bancorp, Inc.",
+ "18.66",
+ "$346.82M",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/snbc"
+ ],
+ [
+ "SNC",
+ "State National Companies, Inc.",
+ "9.16",
+ "$405.3M",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/snc"
+ ],
+ [
+ "SNCR",
+ "Synchronoss Technologies, Inc.",
+ "44.81",
+ "$1.9B",
+ "2006",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/sncr"
+ ],
+ [
+ "SNDK",
+ "SanDisk Corporation",
+ "82.63",
+ "$17.6B",
+ "1995",
+ "Technology",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/sndk"
+ ],
+ [
+ "SNFCA",
+ "Security National Financial Corporation",
+ "5.895",
+ "$85.25M",
+ "n/a",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/snfca"
+ ],
+ [
+ "SNHY",
+ "Sun Hydraulics Corporation",
+ "40.18",
+ "$1.07B",
+ "1997",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/snhy"
+ ],
+ [
+ "SNMX",
+ "Senomyx, Inc.",
+ "6.11",
+ "$264.9M",
+ "2004",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/snmx"
+ ],
+ [
+ "SNPS",
+ "Synopsys, Inc.",
+ "46.95",
+ "$7.21B",
+ "1992",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/snps"
+ ],
+ [
+ "SNSS",
+ "Sunesis Pharmaceuticals, Inc.",
+ "2.35",
+ "$145.58M",
+ "2005",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/snss"
+ ],
+ [
+ "SNTA",
+ "Synta Pharmaceuticals Corp.",
+ "2.32",
+ "$252.64M",
+ "2007",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/snta"
+ ],
+ [
+ "SOCB",
+ "Southcoast Financial Corporation",
+ "7.27",
+ "$51.59M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/socb"
+ ],
+ [
+ "SOCL",
+ "Global X Social Media Index ETF",
+ "18.74",
+ "$95.57M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/socl"
+ ],
+ [
+ "SODA",
+ "SodaStream International Ltd.",
+ "18.73",
+ "$393.29M",
+ "2010",
+ "Consumer Durables",
+ "Consumer Electronics/Appliances",
+ "http://www.nasdaq.com/symbol/soda"
+ ],
+ [
+ "SOFO",
+ "Sonic Foundry, Inc.",
+ "8.19",
+ "$35.6M",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/sofo"
+ ],
+ [
+ "SOHO",
+ "Sotherly Hotels Inc.",
+ "7.44",
+ "$78.65M",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/soho"
+ ],
+ [
+ "SOHOL",
+ "Sotherly Hotels LP",
+ "26.2535",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/sohol"
+ ],
+ [
+ "SOHOM",
+ "Sotherly Hotels LP",
+ "25.2",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/sohom"
+ ],
+ [
+ "SOHU",
+ "Sohu.com Inc.",
+ "53.26",
+ "$2.05B",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/sohu"
+ ],
+ [
+ "SONA",
+ "Southern National Bancorp of Virginia, Inc.",
+ "11.6501",
+ "$142.09M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sona"
+ ],
+ [
+ "SONC",
+ "Sonic Corp.",
+ "32.88",
+ "$1.76B",
+ "1991",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/sonc"
+ ],
+ [
+ "SONS",
+ "Sonus Networks, Inc.",
+ "16.75",
+ "$33.11M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/sons"
+ ],
+ [
+ "SORL",
+ "SORL Auto Parts, Inc.",
+ "3.11",
+ "$60.04M",
+ "n/a",
+ "Capital Goods",
+ "Auto Parts:O.E.M.",
+ "http://www.nasdaq.com/symbol/sorl"
+ ],
+ [
+ "SOXX",
+ "iShares PHLX SOX Semiconductor Sector Index Fund",
+ "96.31",
+ "$577.86M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/soxx"
+ ],
+ [
+ "SP",
+ "SP Plus Corporation",
+ "22.78",
+ "$501.62M",
+ "n/a",
+ "Consumer Services",
+ "Rental/Leasing Companies",
+ "http://www.nasdaq.com/symbol/sp"
+ ],
+ [
+ "SPAN",
+ "Span-America Medical Systems, Inc.",
+ "18.175",
+ "$54.19M",
+ "1983",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/span"
+ ],
+ [
+ "SPAR",
+ "Spartan Motors, Inc.",
+ "5.35",
+ "$182.34M",
+ "n/a",
+ "Capital Goods",
+ "Auto Manufacturing",
+ "http://www.nasdaq.com/symbol/spar"
+ ],
+ [
+ "SPCB",
+ "SuperCom, Ltd.",
+ "8.22",
+ "$112.61M",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/spcb"
+ ],
+ [
+ "SPDC",
+ "Speed Commerce, Inc.",
+ "0.9871",
+ "$65.16M",
+ "n/a",
+ "Technology",
+ "Retail: Computer Software & Peripheral Equipment",
+ "http://www.nasdaq.com/symbol/spdc"
+ ],
+ [
+ "SPEX",
+ "Spherix Incorporated",
+ "0.93",
+ "$26.61M",
+ "n/a",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/spex"
+ ],
+ [
+ "SPHS",
+ "Sophiris Bio, Inc.",
+ "0.47",
+ "$7.92M",
+ "2013",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/sphs"
+ ],
+ [
+ "SPIL",
+ "Siliconware Precision Industries Company, Ltd.",
+ "8.74",
+ "$5.46B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/spil"
+ ],
+ [
+ "SPKE",
+ "Spark Energy, Inc.",
+ "15.2",
+ "$209M",
+ "2014",
+ "Public Utilities",
+ "Power Generation",
+ "http://www.nasdaq.com/symbol/spke"
+ ],
+ [
+ "SPLK",
+ "Splunk Inc.",
+ "68.945",
+ "$8.36B",
+ "2012",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/splk"
+ ],
+ [
+ "SPLS",
+ "Staples, Inc.",
+ "16.79",
+ "$10.75B",
+ "1989",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/spls"
+ ],
+ [
+ "SPNC",
+ "The Spectranetics Corporation",
+ "33.78",
+ "$1.42B",
+ "1992",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/spnc"
+ ],
+ [
+ "SPNS",
+ "Sapiens International Corporation N.V.",
+ "7.31",
+ "$348.53M",
+ "1992",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/spns"
+ ],
+ [
+ "SPOK",
+ "Spok Holdings, Inc.",
+ "18.93",
+ "$410.46M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/spok"
+ ],
+ [
+ "SPPI",
+ "Spectrum Pharmaceuticals, Inc.",
+ "7.46",
+ "$491.52M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/sppi"
+ ],
+ [
+ "SPPR",
+ "Supertel Hospitality, Inc.",
+ "1.69",
+ "$7.93M",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/sppr"
+ ],
+ [
+ "SPPRO",
+ "Supertel Hospitality, Inc.",
+ "15.5001",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/sppro"
+ ],
+ [
+ "SPPRP",
+ "Supertel Hospitality, Inc.",
+ "5.6991",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/spprp"
+ ],
+ [
+ "SPRO",
+ "SmartPros Ltd.",
+ "1.43",
+ "$6.66M",
+ "n/a",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/spro"
+ ],
+ [
+ "SPRT",
+ "support.com, Inc.",
+ "1.68",
+ "$90.88M",
+ "2000",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/sprt"
+ ],
+ [
+ "SPSC",
+ "SPS Commerce, Inc.",
+ "67.4",
+ "$1.1B",
+ "2010",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/spsc"
+ ],
+ [
+ "SPTN",
+ "SpartanNash Company",
+ "26.21",
+ "$982.77M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Food Distributors",
+ "http://www.nasdaq.com/symbol/sptn"
+ ],
+ [
+ "SPU",
+ "SkyPeople Fruit Juice, Inc.",
+ "n/a",
+ "n/a",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/spu"
+ ],
+ [
+ "SPWH",
+ "Sportsman's Warehouse Holdings, Inc.",
+ "n/a",
+ "n/a",
+ "2014",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/spwh"
+ ],
+ [
+ "SPWR",
+ "SunPower Corporation",
+ "n/a",
+ "n/a",
+ "2005",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/spwr"
+ ],
+ [
+ "SQBG",
+ "Sequential Brands Group, Inc.",
+ "10.39",
+ "$396.61M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/sqbg"
+ ],
+ [
+ "SQBK",
+ "Square 1 Financial, Inc.",
+ "24.96",
+ "$716.57M",
+ "2014",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sqbk"
+ ],
+ [
+ "SQI",
+ "SciQuest, Inc.",
+ "17.18",
+ "$472.83M",
+ "2010",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/sqi"
+ ],
+ [
+ "SQNM",
+ "Sequenom, Inc.",
+ "3.49",
+ "$409.6M",
+ "2000",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/sqnm"
+ ],
+ [
+ "SQQQ",
+ "ProShares UltraPro Short QQQ Fund",
+ "25.23",
+ "$227.07M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/sqqq"
+ ],
+ [
+ "SRCE",
+ "1st Source Corporation",
+ "31.31",
+ "$747.13M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/srce"
+ ],
+ [
+ "SRCL",
+ "Stericycle, Inc.",
+ "134.61",
+ "$11.43B",
+ "1996",
+ "Basic Industries",
+ "Environmental Services",
+ "http://www.nasdaq.com/symbol/srcl"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_25.json b/packages/flutter/example/stocks/data/stock_data_25.json
new file mode 100644
index 0000000..80e6c8f
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_25.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "SRDX",
+ "SurModics, Inc.",
+ "23.57",
+ "$304.98M",
+ "1998",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/srdx"
+ ],
+ [
+ "SREV",
+ "ServiceSource International, Inc.",
+ "3.84",
+ "$321.74M",
+ "2011",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/srev"
+ ],
+ [
+ "SRNE",
+ "Sorrento Therapeutics, Inc.",
+ "12.37",
+ "$357.9M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/srne"
+ ],
+ [
+ "SRPT",
+ "Sarepta Therapeutics, Inc.",
+ "15.21",
+ "$628.32M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/srpt"
+ ],
+ [
+ "SRSC",
+ "Sears Canada Inc. ",
+ "9.87",
+ "$1.01B",
+ "n/a",
+ "Consumer Services",
+ "Department/Specialty Retail Stores",
+ "http://www.nasdaq.com/symbol/srsc"
+ ],
+ [
+ "SSB",
+ "South State Corporation",
+ "65.05",
+ "$1.57B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ssb"
+ ],
+ [
+ "SSBI",
+ "Summit State Bank",
+ "13.73",
+ "$65.61M",
+ "2006",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ssbi"
+ ],
+ [
+ "SSFN",
+ "Stewardship Financial Corp",
+ "5.45",
+ "$32.86M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ssfn"
+ ],
+ [
+ "SSH",
+ "Sunshine Heart Inc",
+ "5.25",
+ "$88.89M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/ssh"
+ ],
+ [
+ "SSNC",
+ "SS&C Technologies Holdings, Inc.",
+ "62.6",
+ "$5.24B",
+ "2010",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/ssnc"
+ ],
+ [
+ "SSRG",
+ "Symmetry Surgical Inc.",
+ "7.85",
+ "$75.26M",
+ "n/a",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/ssrg"
+ ],
+ [
+ "SSRI",
+ "Silver Standard Resources Inc.",
+ "5.405",
+ "$436.48M",
+ "n/a",
+ "Basic Industries",
+ "Precious Metals",
+ "http://www.nasdaq.com/symbol/ssri"
+ ],
+ [
+ "SSYS",
+ "Stratasys, Ltd.",
+ "63.88",
+ "$3.25B",
+ "1994",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/ssys"
+ ],
+ [
+ "STAA",
+ "STAAR Surgical Company",
+ "6.63",
+ "$256.27M",
+ "n/a",
+ "Health Care",
+ "Ophthalmic Goods",
+ "http://www.nasdaq.com/symbol/staa"
+ ],
+ [
+ "STB",
+ "Student Transportation Inc",
+ "5.75",
+ "$480.27M",
+ "n/a",
+ "Transportation",
+ "Other Transportation",
+ "http://www.nasdaq.com/symbol/stb"
+ ],
+ [
+ "STBA",
+ "S&T Bancorp, Inc.",
+ "28.81",
+ "$858.43M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/stba"
+ ],
+ [
+ "STBZ",
+ "State Bank Financial Corporation.",
+ "19.75",
+ "$637.36M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/stbz"
+ ],
+ [
+ "STCK",
+ "Stock Building Supply Holdings, Inc.",
+ "15.89",
+ "$415.94M",
+ "2013",
+ "Consumer Services",
+ "RETAIL: Building Materials",
+ "http://www.nasdaq.com/symbol/stck"
+ ],
+ [
+ "STEM",
+ "StemCells, Inc.",
+ "1.09",
+ "$74.92M",
+ "1992",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/stem"
+ ],
+ [
+ "STFC",
+ "State Auto Financial Corporation",
+ "24.23",
+ "$992.63M",
+ "1991",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/stfc"
+ ],
+ [
+ "STKL",
+ "SunOpta, Inc.",
+ "11.85",
+ "$796.41M",
+ "n/a",
+ "Consumer Services",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/stkl"
+ ],
+ [
+ "STLD",
+ "Steel Dynamics, Inc.",
+ "19.47",
+ "$4.68B",
+ "1996",
+ "Basic Industries",
+ "Steel/Iron Ore",
+ "http://www.nasdaq.com/symbol/stld"
+ ],
+ [
+ "STLY",
+ "Stanley Furniture Company, Inc.",
+ "3.4",
+ "$50.25M",
+ "n/a",
+ "Consumer Durables",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/stly"
+ ],
+ [
+ "STML",
+ "Stemline Therapeutics, Inc.",
+ "14.1",
+ "$187.32M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/stml"
+ ],
+ [
+ "STMP",
+ "Stamps.com Inc.",
+ "57.52",
+ "$922.02M",
+ "1999",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/stmp"
+ ],
+ [
+ "STNR",
+ "Steiner Leisure Limited",
+ "47.57",
+ "$645.31M",
+ "1996",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/stnr"
+ ],
+ [
+ "STPP",
+ "iPath US Treasury Steepener ETN",
+ "34.29",
+ "$13.96M",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/stpp"
+ ],
+ [
+ "STRA",
+ "Strayer Education, Inc.",
+ "61.45",
+ "$670.01M",
+ "1996",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/stra"
+ ],
+ [
+ "STRL",
+ "Sterling Construction Company Inc",
+ "2.99",
+ "$56.22M",
+ "n/a",
+ "Basic Industries",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/strl"
+ ],
+ [
+ "STRM",
+ "Streamline Health Solutions, Inc.",
+ "4.15",
+ "$76.65M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/strm"
+ ],
+ [
+ "STRN",
+ "Sutron Corporation",
+ "5.4201",
+ "$27.56M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/strn"
+ ],
+ [
+ "STRS",
+ "Stratus Properties, Inc.",
+ "13.45",
+ "$108.12M",
+ "n/a",
+ "Consumer Services",
+ "Homebuilding",
+ "http://www.nasdaq.com/symbol/strs"
+ ],
+ [
+ "STRT",
+ "Strattec Security Corporation",
+ "64.79",
+ "$232.41M",
+ "n/a",
+ "Capital Goods",
+ "Auto Parts:O.E.M.",
+ "http://www.nasdaq.com/symbol/strt"
+ ],
+ [
+ "STRZA",
+ "Starz",
+ "31.52",
+ "$3.29B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/strza"
+ ],
+ [
+ "STRZB",
+ "Starz",
+ "30.3728",
+ "$3.17B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/strzb"
+ ],
+ [
+ "STX",
+ "Seagate Technology.",
+ "62.18",
+ "$20.42B",
+ "2002",
+ "Technology",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/stx"
+ ],
+ [
+ "STXS",
+ "Stereotaxis, Inc.",
+ "2.65",
+ "$54.22M",
+ "2004",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/stxs"
+ ],
+ [
+ "SUBK",
+ "Suffolk Bancorp",
+ "23.14",
+ "$269.99M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/subk"
+ ],
+ [
+ "SUMR",
+ "Summer Infant, Inc.",
+ "2.65",
+ "$48.06M",
+ "n/a",
+ "Consumer Durables",
+ "Miscellaneous manufacturing industries",
+ "http://www.nasdaq.com/symbol/sumr"
+ ],
+ [
+ "SUNS",
+ "Solar Senior Capital Ltd.",
+ "15.73",
+ "$181.42M",
+ "2011",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/suns"
+ ],
+ [
+ "SUPN",
+ "Supernus Pharmaceuticals, Inc.",
+ "8.67",
+ "$372.21M",
+ "2012",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/supn"
+ ],
+ [
+ "SURG",
+ "Synergetics USA, Inc.",
+ "4.49",
+ "$113.88M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/surg"
+ ],
+ [
+ "SUSQ",
+ "Susquehanna Bancshares, Inc.",
+ "13.5",
+ "$2.45B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/susq"
+ ],
+ [
+ "SUTR",
+ "Sutor Technology Group Limited",
+ "0.88",
+ "$36.62M",
+ "n/a",
+ "Capital Goods",
+ "Steel/Iron Ore",
+ "http://www.nasdaq.com/symbol/sutr"
+ ],
+ [
+ "SVA",
+ "Sinovac Biotech, Ltd.",
+ "5",
+ "$278.49M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/sva"
+ ],
+ [
+ "SVBI",
+ "Severn Bancorp Inc",
+ "4.41",
+ "$44.4M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/svbi"
+ ],
+ [
+ "SVVC",
+ "Firsthand Technology Value Fund, Inc.",
+ "13.7",
+ "$124.29M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/svvc"
+ ],
+ [
+ "SWHC",
+ "Smith & Wesson Holding Corporation",
+ "12.78",
+ "$686.34M",
+ "n/a",
+ "Capital Goods",
+ "Ordnance And Accessories",
+ "http://www.nasdaq.com/symbol/swhc"
+ ],
+ [
+ "SWIR",
+ "Sierra Wireless, Inc.",
+ "37.77",
+ "$1.2B",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/swir"
+ ],
+ [
+ "SWKS",
+ "Skyworks Solutions, Inc.",
+ "84.3",
+ "$16.09B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/swks"
+ ],
+ [
+ "SWSH",
+ "Swisher Hygiene, Inc.",
+ "1.98",
+ "$34.83M",
+ "n/a",
+ "Basic Industries",
+ "Package Goods/Cosmetics",
+ "http://www.nasdaq.com/symbol/swsh"
+ ],
+ [
+ "SYBT",
+ "Stock Yards Bancorp, Inc.",
+ "32.61",
+ "$479.72M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/sybt"
+ ],
+ [
+ "SYKE",
+ "Sykes Enterprises, Incorporated",
+ "22.82",
+ "$987.91M",
+ "1996",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/syke"
+ ],
+ [
+ "SYMC",
+ "Symantec Corporation",
+ "25.685",
+ "$17.53B",
+ "1989",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/symc"
+ ],
+ [
+ "SYMX",
+ "Synthesis Energy Systems, Inc.",
+ "0.78",
+ "$57.11M",
+ "n/a",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/symx"
+ ],
+ [
+ "SYNA",
+ "Synaptics Incorporated",
+ "82.225",
+ "$3.02B",
+ "2002",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/syna"
+ ],
+ [
+ "SYNC",
+ "Synacor, Inc.",
+ "2.2",
+ "$60.24M",
+ "2012",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/sync"
+ ],
+ [
+ "SYNL",
+ "Synalloy Corporation",
+ "15.37",
+ "$133.86M",
+ "n/a",
+ "Basic Industries",
+ "Steel/Iron Ore",
+ "http://www.nasdaq.com/symbol/synl"
+ ],
+ [
+ "SYNT",
+ "Syntel, Inc.",
+ "49.68",
+ "$4.15B",
+ "1997",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/synt"
+ ],
+ [
+ "SYPR",
+ "Sypris Solutions, Inc.",
+ "2.42",
+ "$49.63M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/sypr"
+ ],
+ [
+ "SYRX",
+ "Sysorex Global Holding Corp.",
+ "1.52",
+ "$29.87M",
+ "2014",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/syrx"
+ ],
+ [
+ "SYUT",
+ "Synutra International, Inc.",
+ "5.74",
+ "$328.91M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/syut"
+ ],
+ [
+ "SZMK",
+ "Sizmek Inc.",
+ "7.87",
+ "$239.24M",
+ "n/a",
+ "Consumer Services",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/szmk"
+ ],
+ [
+ "SZYM",
+ "Solazyme, Inc.",
+ "2.56",
+ "$203.01M",
+ "2011",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/szym"
+ ],
+ [
+ "TACT",
+ "TransAct Technologies Incorporated",
+ "6.61",
+ "$54.34M",
+ "1996",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/tact"
+ ],
+ [
+ "TAIT",
+ "Taitron Components Incorporated",
+ "1",
+ "$5.54M",
+ "1995",
+ "Consumer Non-Durables",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/tait"
+ ],
+ [
+ "TAPR",
+ "Barclays Inverse US Treasury Composite ETN",
+ "32.96",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/tapr"
+ ],
+ [
+ "TASR",
+ "TASER International, Inc.",
+ "27.58",
+ "$1.45B",
+ "n/a",
+ "Capital Goods",
+ "Ordnance And Accessories",
+ "http://www.nasdaq.com/symbol/tasr"
+ ],
+ [
+ "TAST",
+ "Carrols Restaurant Group, Inc.",
+ "8.8",
+ "$309.96M",
+ "2006",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/tast"
+ ],
+ [
+ "TATT",
+ "TAT Technologies Ltd.",
+ "6.31",
+ "$55.56M",
+ "n/a",
+ "Capital Goods",
+ "Aerospace",
+ "http://www.nasdaq.com/symbol/tatt"
+ ],
+ [
+ "TAX",
+ "Liberty Tax, Inc.",
+ "33.92",
+ "$430.21M",
+ "n/a",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/tax"
+ ],
+ [
+ "TAXI",
+ "Medallion Financial Corp.",
+ "10.8",
+ "$271.76M",
+ "1996",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/taxi"
+ ],
+ [
+ "TAYD",
+ "Taylor Devices, Inc.",
+ "11.55",
+ "$38.66M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/tayd"
+ ],
+ [
+ "TBBK",
+ "The Bancorp, Inc.",
+ "8.99",
+ "$339M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/tbbk"
+ ],
+ [
+ "TBIO",
+ "Transgenomic, Inc.",
+ "2.54",
+ "$21.04M",
+ "2000",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/tbio"
+ ],
+ [
+ "TBK",
+ "Triumph Bancorp, Inc.",
+ "12.98",
+ "$233.17M",
+ "2014",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/tbk"
+ ],
+ [
+ "TBNK",
+ "Territorial Bancorp Inc.",
+ "21.78",
+ "$217.14M",
+ "2009",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/tbnk"
+ ],
+ [
+ "TBPH",
+ "Theravance Biopharma, Inc.",
+ "19.52",
+ "$629.1M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/tbph"
+ ],
+ [
+ "TCBI",
+ "Texas Capital Bancshares, Inc.",
+ "46.99",
+ "$2.15B",
+ "2003",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/tcbi"
+ ],
+ [
+ "TCBIL",
+ "Texas Capital Bancshares, Inc.",
+ "24.63",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/tcbil"
+ ],
+ [
+ "TCBIP",
+ "Texas Capital Bancshares, Inc.",
+ "24.762",
+ "$148.57M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/tcbip"
+ ],
+ [
+ "TCBIW",
+ "Texas Capital Bancshares, Inc.",
+ "33.37",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/tcbiw"
+ ],
+ [
+ "TCBK",
+ "TriCo Bancshares",
+ "24.47",
+ "$555.84M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/tcbk"
+ ],
+ [
+ "TCCO",
+ "Technical Communications Corporation",
+ "4.2699",
+ "$7.85M",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/tcco"
+ ],
+ [
+ "TCFC",
+ "The Community Financial Corporation",
+ "19.6916",
+ "$92.33M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/tcfc"
+ ],
+ [
+ "TCON",
+ "TRACON Pharmaceuticals, Inc.",
+ "10.14",
+ "$122.62M",
+ "2015",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/tcon"
+ ],
+ [
+ "TCPC",
+ "TCP Capital Corp.",
+ "16.79",
+ "$718.79M",
+ "2012",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/tcpc"
+ ],
+ [
+ "TCRD",
+ "THL Credit, Inc.",
+ "11.9",
+ "$403.47M",
+ "2010",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/tcrd"
+ ],
+ [
+ "TCX",
+ "Tucows Inc.",
+ "18.44",
+ "$208.92M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/tcx"
+ ],
+ [
+ "TDIV",
+ "First Trust NASDAQ Technology Dividend Index Fund",
+ "28.56",
+ "$741.27M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/tdiv"
+ ],
+ [
+ "TEAR",
+ "TearLab Corporation",
+ "2.52",
+ "$84.78M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/tear"
+ ],
+ [
+ "TECD",
+ "Tech Data Corporation",
+ "61.78",
+ "$2.36B",
+ "1986",
+ "Technology",
+ "Retail: Computer Software & Peripheral Equipment",
+ "http://www.nasdaq.com/symbol/tecd"
+ ],
+ [
+ "TECH",
+ "Bio-Techne Corp",
+ "96.36",
+ "$3.58B",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/tech"
+ ],
+ [
+ "TECU",
+ "Tecumseh Products Company",
+ "3.1",
+ "$57.29M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/tecu"
+ ],
+ [
+ "TEDU",
+ "Tarena International, Inc.",
+ "11.2",
+ "$567.36M",
+ "2014",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/tedu"
+ ],
+ [
+ "TENX",
+ "Tenax Therapeutics, Inc.",
+ "3.31",
+ "$93.08M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/tenx"
+ ],
+ [
+ "TERP",
+ "TerraForm Power, Inc.",
+ "33.4",
+ "$1.41B",
+ "2014",
+ "Public Utilities",
+ "Electric Utilities: Central",
+ "http://www.nasdaq.com/symbol/terp"
+ ],
+ [
+ "TESO",
+ "Tesco Corporation",
+ "10.79",
+ "$427.74M",
+ "n/a",
+ "Energy",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/teso"
+ ],
+ [
+ "TESS",
+ "TESSCO Technologies Incorporated",
+ "25.27",
+ "$206.85M",
+ "1994",
+ "Consumer Non-Durables",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/tess"
+ ],
+ [
+ "TFM",
+ "The Fresh Market, Inc.",
+ "37.09",
+ "$1.8B",
+ "2010",
+ "Consumer Services",
+ "Food Chains",
+ "http://www.nasdaq.com/symbol/tfm"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_26.json b/packages/flutter/example/stocks/data/stock_data_26.json
new file mode 100644
index 0000000..48aaf6b
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_26.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "TFSC",
+ "1347 Capital Corp.",
+ "9.43",
+ "$56.09M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/tfsc"
+ ],
+ [
+ "TFSCR",
+ "1347 Capital Corp.",
+ "0.37",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/tfscr"
+ ],
+ [
+ "TFSCU",
+ "1347 Capital Corp.",
+ "9.97",
+ "$41.67M",
+ "2014",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/tfscu"
+ ],
+ [
+ "TFSCW",
+ "1347 Capital Corp.",
+ "0.2",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/tfscw"
+ ],
+ [
+ "TFSL",
+ "TFS Financial Corporation",
+ "14.18",
+ "$4.23B",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/tfsl"
+ ],
+ [
+ "TGA",
+ "Transglobe Energy Corp",
+ "3.03",
+ "$228.04M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/tga"
+ ],
+ [
+ "TGEN",
+ "Tecogen Inc.",
+ "5.2099",
+ "$82.36M",
+ "2014",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/tgen"
+ ],
+ [
+ "TGLS",
+ "Tecnoglass Inc.",
+ "9.8377",
+ "$240.07M",
+ "2012",
+ "Consumer Durables",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/tgls"
+ ],
+ [
+ "TGTX",
+ "TG Therapeutics, Inc.",
+ "13.5",
+ "$593.52M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/tgtx"
+ ],
+ [
+ "THFF",
+ "First Financial Corporation Indiana",
+ "34.29",
+ "$442.54M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/thff"
+ ],
+ [
+ "THLD",
+ "Threshold Pharmaceuticals, Inc.",
+ "4.35",
+ "$272.96M",
+ "2005",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/thld"
+ ],
+ [
+ "THOR",
+ "Thoratec Corporation",
+ "40.5",
+ "$2.17B",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/thor"
+ ],
+ [
+ "THRM",
+ "Gentherm Inc",
+ "42.27",
+ "$1.51B",
+ "n/a",
+ "Capital Goods",
+ "Auto Parts:O.E.M.",
+ "http://www.nasdaq.com/symbol/thrm"
+ ],
+ [
+ "THRX",
+ "Theravance, Inc.",
+ "18.22",
+ "$2.1B",
+ "2004",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/thrx"
+ ],
+ [
+ "THST",
+ "Truett-Hurst, Inc.",
+ "2.82",
+ "$10.85M",
+ "2013",
+ "Consumer Non-Durables",
+ "Beverages (Production/Distribution)",
+ "http://www.nasdaq.com/symbol/thst"
+ ],
+ [
+ "THTI",
+ "THT Heat Transfer Technology, Inc.",
+ "1.04",
+ "$21.27M",
+ "n/a",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/thti"
+ ],
+ [
+ "TICC",
+ "TICC Capital Corp.",
+ "7.61",
+ "$459.32M",
+ "2003",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ticc"
+ ],
+ [
+ "TIGR",
+ "TigerLogic Corporation",
+ "0.35",
+ "$10.83M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/tigr"
+ ],
+ [
+ "TILE",
+ "Interface, Inc.",
+ "18.91",
+ "$1.25B",
+ "n/a",
+ "Consumer Durables",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/tile"
+ ],
+ [
+ "TINY",
+ "Harris & Harris Group, Inc.",
+ "3.19",
+ "$99.67M",
+ "n/a",
+ "Finance",
+ "Finance/Investors Services",
+ "http://www.nasdaq.com/symbol/tiny"
+ ],
+ [
+ "TIPT",
+ "Tiptree Financial Inc.",
+ "7.1",
+ "$295.36M",
+ "n/a",
+ "Finance",
+ "Specialty Insurers",
+ "http://www.nasdaq.com/symbol/tipt"
+ ],
+ [
+ "TISA",
+ "Top Image Systems, Ltd.",
+ "3.12",
+ "$55.58M",
+ "1996",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/tisa"
+ ],
+ [
+ "TITN",
+ "Titan Machinery Inc.",
+ "14.89",
+ "$318.81M",
+ "2007",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/titn"
+ ],
+ [
+ "TIVO",
+ "TiVo Inc.",
+ "10.83",
+ "$1.11B",
+ "1999",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/tivo"
+ ],
+ [
+ "TKAI",
+ "Tokai Pharmaceuticals, Inc.",
+ "14.49",
+ "$324.31M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/tkai"
+ ],
+ [
+ "TKMR",
+ "Tekmira Pharmaceuticals Corp",
+ "19.89",
+ "$446.3M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/tkmr"
+ ],
+ [
+ "TLF",
+ "Tandy Leather Factory, Inc.",
+ "8.99",
+ "$92.11M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/tlf"
+ ],
+ [
+ "TLMR",
+ "Talmer Bancorp, Inc.",
+ "13.7",
+ "$965.9M",
+ "2014",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/tlmr"
+ ],
+ [
+ "TLOG",
+ "TetraLogic Pharmaceuticals Corporation",
+ "4.94",
+ "$110.24M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/tlog"
+ ],
+ [
+ "TNAV",
+ "TeleNav, Inc.",
+ "8.23",
+ "$328.4M",
+ "2010",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/tnav"
+ ],
+ [
+ "TNDM",
+ "Tandem Diabetes Care, Inc.",
+ "13.54",
+ "$320M",
+ "2013",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/tndm"
+ ],
+ [
+ "TNGO",
+ "Tangoe, Inc.",
+ "12.19",
+ "$473.51M",
+ "2011",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/tngo"
+ ],
+ [
+ "TNXP",
+ "Tonix Pharmaceuticals Holding Corp.",
+ "6.25",
+ "$98.16M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/tnxp"
+ ],
+ [
+ "TOPS",
+ "TOP Ships Inc.",
+ "1.18",
+ "$22.38M",
+ "n/a",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/tops"
+ ],
+ [
+ "TORM ",
+ "TOR Minerals International Inc",
+ "7.21",
+ "$21.73M",
+ "1988",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/torm "
+ ],
+ [
+ "TOUR",
+ "Tuniu Corporation",
+ "15.03",
+ "$729.75M",
+ "2014",
+ "Consumer Services",
+ "Transportation Services",
+ "http://www.nasdaq.com/symbol/tour"
+ ],
+ [
+ "TOWN",
+ "Towne Bank",
+ "15.63",
+ "$552M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/town"
+ ],
+ [
+ "TQQQ",
+ "ProShares UltraPro QQQ Fund",
+ "111.33",
+ "$1.02B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/tqqq"
+ ],
+ [
+ "TRAK",
+ "Dealertrack Technologies, Inc.",
+ "44.95",
+ "$2.43B",
+ "2005",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/trak"
+ ],
+ [
+ "TRCB",
+ "Two River Bancorp",
+ "8.57",
+ "$68M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/trcb"
+ ],
+ [
+ "TRCH",
+ "Torchlight Energy Resources, Inc.",
+ "0.513",
+ "$11.9M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/trch"
+ ],
+ [
+ "TREE",
+ "LendingTree, Inc.",
+ "43.84",
+ "$496.55M",
+ "n/a",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/tree"
+ ],
+ [
+ "TRGT",
+ "Targacept, Inc.",
+ "2.6",
+ "$89.21M",
+ "2006",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/trgt"
+ ],
+ [
+ "TRIB",
+ "Trinity Biotech plc",
+ "17.82",
+ "$411.18M",
+ "1992",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/trib"
+ ],
+ [
+ "TRIL",
+ "Trillium Therapeutics Inc.",
+ "13.57",
+ "$58.09M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/tril"
+ ],
+ [
+ "TRIP",
+ "TripAdvisor, Inc.",
+ "88.78",
+ "$12.69B",
+ "n/a",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/trip"
+ ],
+ [
+ "TRIV",
+ "TriVascular Technologies, Inc.",
+ "10.51",
+ "$214.08M",
+ "2014",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/triv"
+ ],
+ [
+ "TRMB",
+ "Trimble Navigation Limited",
+ "26.53",
+ "$6.87B",
+ "1990",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/trmb"
+ ],
+ [
+ "TRMK",
+ "Trustmark Corporation",
+ "23.33",
+ "$1.57B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/trmk"
+ ],
+ [
+ "TRNS",
+ "Transcat, Inc.",
+ "9.25",
+ "$63.23M",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/trns"
+ ],
+ [
+ "TRNX",
+ "Tornier N.V.",
+ "25.65",
+ "$1.25B",
+ "2011",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/trnx"
+ ],
+ [
+ "TROV",
+ "TrovaGene, Inc.",
+ "5.01",
+ "$120.84M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/trov"
+ ],
+ [
+ "TROVU",
+ "TrovaGene, Inc.",
+ "15.82",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/trovu"
+ ],
+ [
+ "TROVW",
+ "TrovaGene, Inc.",
+ "3.94",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/trovw"
+ ],
+ [
+ "TROW",
+ "T. Rowe Price Group, Inc.",
+ "83.53",
+ "$21.78B",
+ "1986",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/trow"
+ ],
+ [
+ "TRS",
+ "TriMas Corporation",
+ "30",
+ "$1.36B",
+ "2007",
+ "Capital Goods",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/trs"
+ ],
+ [
+ "TRST",
+ "TrustCo Bank Corp NY",
+ "6.7",
+ "$635.78M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/trst"
+ ],
+ [
+ "TRTL",
+ "Terrapin 3 Acquisition Corporation",
+ "9.95",
+ "$264.61M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/trtl"
+ ],
+ [
+ "TRTLU",
+ "Terrapin 3 Acquisition Corporation",
+ "10.07",
+ "$186.3M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/trtlu"
+ ],
+ [
+ "TRTLW",
+ "Terrapin 3 Acquisition Corporation",
+ "0.27",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/trtlw"
+ ],
+ [
+ "TRUE",
+ "TrueCar, Inc.",
+ "17.95",
+ "$1.42B",
+ "2014",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/true"
+ ],
+ [
+ "TRVN",
+ "Trevena, Inc.",
+ "5.44",
+ "$213.42M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/trvn"
+ ],
+ [
+ "TSBK",
+ "Timberland Bancorp, Inc.",
+ "10.7",
+ "$75.46M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/tsbk"
+ ],
+ [
+ "TSC",
+ "TriState Capital Holdings, Inc.",
+ "9.92",
+ "$284.83M",
+ "2013",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/tsc"
+ ],
+ [
+ "TSCO",
+ "Tractor Supply Company",
+ "88.12",
+ "$12B",
+ "1994",
+ "Consumer Services",
+ "RETAIL: Building Materials",
+ "http://www.nasdaq.com/symbol/tsco"
+ ],
+ [
+ "TSEM",
+ "Tower Semiconductor Ltd.",
+ "13.69",
+ "$872.1M",
+ "1994",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/tsem"
+ ],
+ [
+ "TSLA",
+ "Tesla Motors, Inc.",
+ "217.11",
+ "$27.22B",
+ "2010",
+ "Capital Goods",
+ "Auto Manufacturing",
+ "http://www.nasdaq.com/symbol/tsla"
+ ],
+ [
+ "TSRA",
+ "Tessera Technologies, Inc.",
+ "39.92",
+ "$2.11B",
+ "2003",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/tsra"
+ ],
+ [
+ "TSRE",
+ "Trade Street Residential, Inc.",
+ "7.95",
+ "$291.75M",
+ "2013",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/tsre"
+ ],
+ [
+ "TSRI",
+ "TSR, Inc.",
+ "4.1147",
+ "$8.07M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/tsri"
+ ],
+ [
+ "TSRO",
+ "TESARO, Inc.",
+ "44.2",
+ "$1.59B",
+ "2012",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/tsro"
+ ],
+ [
+ "TST",
+ "TheStreet, Inc.",
+ "2.02",
+ "$69.6M",
+ "n/a",
+ "Consumer Services",
+ "Newspapers/Magazines",
+ "http://www.nasdaq.com/symbol/tst"
+ ],
+ [
+ "TSYS",
+ "TeleCommunication Systems, Inc.",
+ "3.27",
+ "$195.07M",
+ "2000",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/tsys"
+ ],
+ [
+ "TTEC",
+ "TeleTech Holdings, Inc.",
+ "23.72",
+ "$1.16B",
+ "1996",
+ "Technology",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/ttec"
+ ],
+ [
+ "TTEK",
+ "Tetra Tech, Inc.",
+ "24.99",
+ "$1.54B",
+ "1991",
+ "Consumer Services",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/ttek"
+ ],
+ [
+ "TTGT",
+ "TechTarget, Inc.",
+ "11.29",
+ "$372.26M",
+ "2007",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/ttgt"
+ ],
+ [
+ "TTHI",
+ "Transition Therapeutics, Inc.",
+ "7.05",
+ "$273.92M",
+ "n/a",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/tthi"
+ ],
+ [
+ "TTMI",
+ "TTM Technologies, Inc.",
+ "8.75",
+ "$729.27M",
+ "2000",
+ "Technology",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/ttmi"
+ ],
+ [
+ "TTOO",
+ "T2 Biosystems, Inc.",
+ "17.52",
+ "$351.13M",
+ "2014",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/ttoo"
+ ],
+ [
+ "TTPH",
+ "Tetraphase Pharmaceuticals, Inc.",
+ "41.66",
+ "$1.28B",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ttph"
+ ],
+ [
+ "TTS",
+ "Tile Shop Hldgs, Inc.",
+ "11.1",
+ "$569.59M",
+ "n/a",
+ "Consumer Services",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/tts"
+ ],
+ [
+ "TTWO",
+ "Take-Two Interactive Software, Inc.",
+ "27.005",
+ "$2.28B",
+ "1997",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/ttwo"
+ ],
+ [
+ "TUBE",
+ "TubeMogul, Inc.",
+ "15.99",
+ "$476.38M",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/tube"
+ ],
+ [
+ "TUES",
+ "Tuesday Morning Corp.",
+ "19.46",
+ "$853.21M",
+ "1999",
+ "Consumer Services",
+ "Department/Specialty Retail Stores",
+ "http://www.nasdaq.com/symbol/tues"
+ ],
+ [
+ "TUSA",
+ "First Trust Total US Market AlphaDEX ETF",
+ "26.7199",
+ "$6.68M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/tusa"
+ ],
+ [
+ "TVIX",
+ "VelocityShares Daily 2x VIX Short Term ETN",
+ "2.28",
+ "$31.74M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/tvix"
+ ],
+ [
+ "TVIZ",
+ "VelocityShares Daily 2x VIX Medium Term ETN",
+ "21",
+ "$892332",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/tviz"
+ ],
+ [
+ "TWER",
+ "Towerstream Corporation",
+ "2.3",
+ "$153.3M",
+ "n/a",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/twer"
+ ],
+ [
+ "TWIN",
+ "Twin Disc, Incorporated",
+ "17.43",
+ "$196.7M",
+ "n/a",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/twin"
+ ],
+ [
+ "TWMC",
+ "Trans World Entertainment Corp.",
+ "3.67",
+ "$115.45M",
+ "n/a",
+ "Consumer Services",
+ "Consumer Electronics/Video Chains",
+ "http://www.nasdaq.com/symbol/twmc"
+ ],
+ [
+ "TWOU",
+ "2U, Inc.",
+ "17.62",
+ "$714.35M",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/twou"
+ ],
+ [
+ "TXN",
+ "Texas Instruments Incorporated",
+ "58.52",
+ "$61.81B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/txn"
+ ],
+ [
+ "TXRH",
+ "Texas Roadhouse, Inc.",
+ "36.26",
+ "$2.52B",
+ "2004",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/txrh"
+ ],
+ [
+ "TYPE",
+ "Monotype Imaging Holdings Inc.",
+ "32.82",
+ "$1.29B",
+ "2007",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/type"
+ ],
+ [
+ "TZOO",
+ "Travelzoo Inc.",
+ "9.68",
+ "$142.59M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/tzoo"
+ ],
+ [
+ "UACL",
+ "Universal Truckload Services, Inc.",
+ "24.87",
+ "$745.32M",
+ "2005",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/uacl"
+ ],
+ [
+ "UAE",
+ "iShares MSCI UAE Capped ETF",
+ "19.99",
+ "$43.98M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/uae"
+ ],
+ [
+ "UBCP",
+ "United Bancorp, Inc.",
+ "7.95",
+ "$42.73M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ubcp"
+ ],
+ [
+ "UBFO",
+ "United Security Bancshares",
+ "5.05",
+ "$78.68M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ubfo"
+ ],
+ [
+ "UBIC",
+ "UBIC, Inc.",
+ "18.9699",
+ "$335.87M",
+ "2013",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/ubic"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_27.json b/packages/flutter/example/stocks/data/stock_data_27.json
new file mode 100644
index 0000000..9c8e087
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_27.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "UBNK",
+ "United Financial Bancorp, Inc.",
+ "12.61",
+ "$644.03M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ubnk"
+ ],
+ [
+ "UBNT",
+ "Ubiquiti Networks, Inc.",
+ "31.36",
+ "$2.76B",
+ "2011",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/ubnt"
+ ],
+ [
+ "UBOH",
+ "United Bancshares, Inc.",
+ "14.92",
+ "$50.25M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/uboh"
+ ],
+ [
+ "UBSH",
+ "Union Bankshares Corporation",
+ "21.5",
+ "$977.26M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ubsh"
+ ],
+ [
+ "UBSI",
+ "United Bankshares, Inc.",
+ "36.9",
+ "$2.55B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ubsi"
+ ],
+ [
+ "UCBA",
+ "United Community Bancorp",
+ "12.17",
+ "$56.4M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/ucba"
+ ],
+ [
+ "UCBI",
+ "United Community Banks, Inc.",
+ "19.01",
+ "$1.15B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ucbi"
+ ],
+ [
+ "UCFC",
+ "United Community Financial Corp.",
+ "5.26",
+ "$261.36M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/ucfc"
+ ],
+ [
+ "UCTT",
+ "Ultra Clean Holdings, Inc.",
+ "8.41",
+ "$248.37M",
+ "2004",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/uctt"
+ ],
+ [
+ "UDF",
+ "United Development Funding IV",
+ "16.57",
+ "$507.38M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/udf"
+ ],
+ [
+ "UEIC",
+ "Universal Electronics Inc.",
+ "57.51",
+ "$908.44M",
+ "1993",
+ "Consumer Non-Durables",
+ "Consumer Electronics/Appliances",
+ "http://www.nasdaq.com/symbol/ueic"
+ ],
+ [
+ "UEPS",
+ "Net 1 UEPS Technologies, Inc.",
+ "13.45",
+ "$626.06M",
+ "2005",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/ueps"
+ ],
+ [
+ "UFCS",
+ "United Fire Group, Inc",
+ "29.12",
+ "$729.37M",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/ufcs"
+ ],
+ [
+ "UFPI",
+ "Universal Forest Products, Inc.",
+ "52.9",
+ "$1.06B",
+ "1993",
+ "Basic Industries",
+ "Forest Products",
+ "http://www.nasdaq.com/symbol/ufpi"
+ ],
+ [
+ "UFPT",
+ "UFP Technologies, Inc.",
+ "23.36",
+ "$164.84M",
+ "1993",
+ "Capital Goods",
+ "Containers/Packaging",
+ "http://www.nasdaq.com/symbol/ufpt"
+ ],
+ [
+ "UG",
+ "United-Guardian, Inc.",
+ "20.5",
+ "$94.23M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Package Goods/Cosmetics",
+ "http://www.nasdaq.com/symbol/ug"
+ ],
+ [
+ "UGLD",
+ "VelocityShares 3x Long Gold ETN linked to the S&P GSCI Gold In",
+ "11.56",
+ "$11.39M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/ugld"
+ ],
+ [
+ "UHAL",
+ "Amerco",
+ "321.8",
+ "$6.31B",
+ "n/a",
+ "Consumer Services",
+ "Rental/Leasing Companies",
+ "http://www.nasdaq.com/symbol/uhal"
+ ],
+ [
+ "UIHC",
+ "United Insurance Holdings Corp.",
+ "22.97",
+ "$480.19M",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/uihc"
+ ],
+ [
+ "ULBI",
+ "Ultralife Corporation",
+ "3.722",
+ "$64.75M",
+ "1992",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/ulbi"
+ ],
+ [
+ "ULTA",
+ "Ulta Salon, Cosmetics & Fragrance, Inc.",
+ "138",
+ "$8.88B",
+ "2007",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/ulta"
+ ],
+ [
+ "ULTI",
+ "The Ultimate Software Group, Inc.",
+ "168.88",
+ "$4.79B",
+ "1998",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/ulti"
+ ],
+ [
+ "ULTR",
+ "Ultrapetrol (Bahamas) Limited",
+ "1.72",
+ "$242.05M",
+ "2006",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/ultr"
+ ],
+ [
+ "UMBF",
+ "UMB Financial Corporation",
+ "52.2",
+ "$2.37B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/umbf"
+ ],
+ [
+ "UMPQ",
+ "Umpqua Holdings Corporation",
+ "16.72",
+ "$3.63B",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/umpq"
+ ],
+ [
+ "UNAM",
+ "Unico American Corporation",
+ "11.85",
+ "$63.29M",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/unam"
+ ],
+ [
+ "UNB",
+ "Union Bankshares, Inc.",
+ "24.56",
+ "$109.5M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/unb"
+ ],
+ [
+ "UNFI",
+ "United Natural Foods, Inc.",
+ "80.855",
+ "$4.04B",
+ "1996",
+ "Consumer Non-Durables",
+ "Food Distributors",
+ "http://www.nasdaq.com/symbol/unfi"
+ ],
+ [
+ "UNIS",
+ "Unilife Corporation",
+ "3.97",
+ "$511.47M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/unis"
+ ],
+ [
+ "UNTD",
+ "United Online, Inc.",
+ "15.91",
+ "$226.51M",
+ "n/a",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/untd"
+ ],
+ [
+ "UNTY",
+ "Unity Bancorp, Inc.",
+ "9.36",
+ "$78.42M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/unty"
+ ],
+ [
+ "UNXL",
+ "Uni-Pixel, Inc.",
+ "5.12",
+ "$63.24M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/unxl"
+ ],
+ [
+ "UPI",
+ "Uroplasty, Inc.",
+ "1.33",
+ "$29.45M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/upi"
+ ],
+ [
+ "UPIP",
+ "Unwired Planet, Inc.",
+ "0.77",
+ "$86.33M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/upip"
+ ],
+ [
+ "UPLD",
+ "Upland Software, Inc.",
+ "7.14",
+ "$108.59M",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/upld"
+ ],
+ [
+ "URBN",
+ "Urban Outfitters, Inc.",
+ "38.34",
+ "$5.05B",
+ "1993",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/urbn"
+ ],
+ [
+ "URRE",
+ "Uranium Resources, Inc.",
+ "1.87",
+ "$47.16M",
+ "n/a",
+ "Basic Industries",
+ "Precious Metals",
+ "http://www.nasdaq.com/symbol/urre"
+ ],
+ [
+ "USAK",
+ "USA Truck, Inc.",
+ "31.31",
+ "$329.74M",
+ "1992",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/usak"
+ ],
+ [
+ "USAP",
+ "Universal Stainless & Alloy Products, Inc.",
+ "23.98",
+ "$169.59M",
+ "1994",
+ "Basic Industries",
+ "Steel/Iron Ore",
+ "http://www.nasdaq.com/symbol/usap"
+ ],
+ [
+ "USAT",
+ "USA Technologies, Inc.",
+ "2.22",
+ "$79.36M",
+ "n/a",
+ "Miscellaneous",
+ "Office Equipment/Supplies/Services",
+ "http://www.nasdaq.com/symbol/usat"
+ ],
+ [
+ "USATP",
+ "USA Technologies, Inc.",
+ "19.2899",
+ "$8.59M",
+ "n/a",
+ "Miscellaneous",
+ "Office Equipment/Supplies/Services",
+ "http://www.nasdaq.com/symbol/usatp"
+ ],
+ [
+ "USBI",
+ "United Security Bancshares, Inc.",
+ "8.28",
+ "$49.96M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/usbi"
+ ],
+ [
+ "USCR",
+ "U S Concrete, Inc.",
+ "29.7",
+ "$415.2M",
+ "n/a",
+ "Capital Goods",
+ "Building Materials",
+ "http://www.nasdaq.com/symbol/uscr"
+ ],
+ [
+ "USEG",
+ "U.S. Energy Corp.",
+ "1.42",
+ "$39.63M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/useg"
+ ],
+ [
+ "USLM",
+ "United States Lime & Minerals, Inc.",
+ "68.99",
+ "$384.8M",
+ "n/a",
+ "Basic Industries",
+ "Mining & Quarrying of Nonmetallic Minerals (No Fuels)",
+ "http://www.nasdaq.com/symbol/uslm"
+ ],
+ [
+ "USLV",
+ "VelocityShares 3x Long Silver ETN linked to the S&P GSCI Silve",
+ "19.7",
+ "$38.66M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/uslv"
+ ],
+ [
+ "USMD",
+ "USMD Holdings, Inc.",
+ "13.31",
+ "$135.51M",
+ "n/a",
+ "Health Care",
+ "Hospital/Nursing Management",
+ "http://www.nasdaq.com/symbol/usmd"
+ ],
+ [
+ "USTR",
+ "United Stationers Inc.",
+ "40.85",
+ "$1.58B",
+ "1981",
+ "Consumer Services",
+ "Paper",
+ "http://www.nasdaq.com/symbol/ustr"
+ ],
+ [
+ "UTEK",
+ "Ultratech, Inc.",
+ "17.06",
+ "$482.31M",
+ "1993",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/utek"
+ ],
+ [
+ "UTHR",
+ "United Therapeutics Corporation",
+ "156.01",
+ "$7.41B",
+ "1999",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/uthr"
+ ],
+ [
+ "UTIW",
+ "UTi Worldwide Inc.",
+ "12.48",
+ "$1.32B",
+ "2000",
+ "Transportation",
+ "Oil Refining/Marketing",
+ "http://www.nasdaq.com/symbol/utiw"
+ ],
+ [
+ "UTMD",
+ "Utah Medical Products, Inc.",
+ "58.56",
+ "$219.24M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/utmd"
+ ],
+ [
+ "UTSI",
+ "UTStarcom Holdings Corp",
+ "2.81",
+ "$111.78M",
+ "2000",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/utsi"
+ ],
+ [
+ "UVSP",
+ "Univest Corporation of Pennsylvania",
+ "19.04",
+ "$308.73M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/uvsp"
+ ],
+ [
+ "VA",
+ "Virgin America Inc.",
+ "36.1",
+ "$1.55B",
+ "2014",
+ "Transportation",
+ "Air Freight/Delivery Services",
+ "http://www.nasdaq.com/symbol/va"
+ ],
+ [
+ "VALU",
+ "Value Line, Inc.",
+ "15.74",
+ "$154.45M",
+ "1983",
+ "Finance",
+ "Investment Managers",
+ "http://www.nasdaq.com/symbol/valu"
+ ],
+ [
+ "VALX",
+ "Validea Market Legends ETF",
+ "26.07",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/valx"
+ ],
+ [
+ "VASC",
+ "Vascular Solutions, Inc.",
+ "28.95",
+ "$498M",
+ "2000",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/vasc"
+ ],
+ [
+ "VBFC",
+ "Village Bank and Trust Financial Corp.",
+ "17.25",
+ "$5.77M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/vbfc"
+ ],
+ [
+ "VBIV",
+ "VBI Vaccines Inc.",
+ "2.8294",
+ "$56.62M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/vbiv"
+ ],
+ [
+ "VBLT",
+ "Vascular Biogenics Ltd.",
+ "4.25",
+ "$84.57M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/vblt"
+ ],
+ [
+ "VBND",
+ "Vident Core U.S. Bond Strategy Fund",
+ "49.9",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vbnd"
+ ],
+ [
+ "VBTX",
+ "Veritex Holdings, Inc.",
+ "14.2",
+ "$134.39M",
+ "2014",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/vbtx"
+ ],
+ [
+ "VCEL",
+ "Vericel Corporation",
+ "3.6",
+ "$85.63M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/vcel"
+ ],
+ [
+ "VCIT",
+ "Vanguard Intermediate-Term Corporate Bond Index Fund",
+ "87.17",
+ "$4.07B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vcit"
+ ],
+ [
+ "VCLT",
+ "Vanguard Long-Term Corporate Bond ETF",
+ "92.59",
+ "$907.38M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vclt"
+ ],
+ [
+ "VCSH",
+ "Vanguard Short-Term Corporate Bond ETF",
+ "79.96",
+ "$9.48B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vcsh"
+ ],
+ [
+ "VCYT",
+ "Veracyte, Inc.",
+ "8.79",
+ "$197.83M",
+ "2013",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/vcyt"
+ ],
+ [
+ "VDSI",
+ "VASCO Data Security International, Inc.",
+ "27.58",
+ "$1.09B",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/vdsi"
+ ],
+ [
+ "VECO",
+ "Veeco Instruments Inc.",
+ "29.87",
+ "$1.2B",
+ "1994",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/veco"
+ ],
+ [
+ "VGGL",
+ "Viggle Inc.",
+ "1.81",
+ "$29.97M",
+ "n/a",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/vggl"
+ ],
+ [
+ "VGIT",
+ "Vanguard Intermediate-Term Government Bond Index Fund",
+ "64.618",
+ "$174.47M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vgit"
+ ],
+ [
+ "VGLT",
+ "Vanguard Long-Term Government Bond ETF",
+ "77.98",
+ "$132.57M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vglt"
+ ],
+ [
+ "VGSH",
+ "Vanguard Short-Term Government Bond ETF",
+ "60.93",
+ "$578.84M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vgsh"
+ ],
+ [
+ "VIA",
+ "Viacom Inc.",
+ "70.03",
+ "$3.54B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/via"
+ ],
+ [
+ "VIAB",
+ "Viacom Inc.",
+ "69.71",
+ "$24.76B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/viab"
+ ],
+ [
+ "VIAS",
+ "Viasystems Group, Inc.",
+ "17.41",
+ "$364.24M",
+ "n/a",
+ "Technology",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/vias"
+ ],
+ [
+ "VICL",
+ "Vical Incorporated",
+ "1.01",
+ "$91.23M",
+ "1993",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/vicl"
+ ],
+ [
+ "VICR",
+ "Vicor Corporation",
+ "12.58",
+ "$485.12M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/vicr"
+ ],
+ [
+ "VIDE",
+ "Video Display Corporation",
+ "2.46",
+ "$15.73M",
+ "1985",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/vide"
+ ],
+ [
+ "VIDI",
+ "Vident International Equity Fund",
+ "24.11",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vidi"
+ ],
+ [
+ "VIEW",
+ "Viewtran Group, Inc.",
+ "1.41",
+ "$38.79M",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/view"
+ ],
+ [
+ "VIIX",
+ "VelocityShares VIX Short Term ETN",
+ "39.25",
+ "$6.59M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/viix"
+ ],
+ [
+ "VIIZ",
+ "VelocityShares VIX Medium Term ETN",
+ "17.98",
+ "$2.25M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/viiz"
+ ],
+ [
+ "VIMC",
+ "Vimicro International Corporation",
+ "8.67",
+ "$207.83M",
+ "2005",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/vimc"
+ ],
+ [
+ "VIP",
+ "VimpelCom Ltd.",
+ "5.22",
+ "$9.17B",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/vip"
+ ],
+ [
+ "VIRC",
+ "Virco Manufacturing Corporation",
+ "2.45",
+ "$36.39M",
+ "n/a",
+ "Consumer Durables",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/virc"
+ ],
+ [
+ "VISN",
+ "VisionChina Media, Inc.",
+ "14.42",
+ "$73.23M",
+ "2007",
+ "Technology",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/visn"
+ ],
+ [
+ "VIVO",
+ "Meridian Bioscience Inc.",
+ "19.34",
+ "$806.59M",
+ "1986",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/vivo"
+ ],
+ [
+ "VLCCF",
+ "Knightsbridge Shipping Limited",
+ "4.58",
+ "$366.96M",
+ "1997",
+ "Consumer Services",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/vlccf"
+ ],
+ [
+ "VLGEA",
+ "Village Super Market, Inc.",
+ "27.57",
+ "$387.57M",
+ "n/a",
+ "Consumer Services",
+ "Food Chains",
+ "http://www.nasdaq.com/symbol/vlgea"
+ ],
+ [
+ "VLTC",
+ "Voltari Corporation",
+ "0.7701",
+ "$3.67M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/vltc"
+ ],
+ [
+ "VLYWW",
+ "Valley National Bancorp",
+ "0.0501",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/vlyww"
+ ],
+ [
+ "VMBS",
+ "Vanguard Mortgage-Backed Securities ETF",
+ "53.11",
+ "$557.66M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vmbs"
+ ],
+ [
+ "VNDA",
+ "Vanda Pharmaceuticals Inc.",
+ "11.43",
+ "$453.21M",
+ "2006",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/vnda"
+ ],
+ [
+ "VNET",
+ "21Vianet Group, Inc.",
+ "18.33",
+ "$1.2B",
+ "2011",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/vnet"
+ ],
+ [
+ "VNOM",
+ "Viper Energy Partners LP",
+ "18.26",
+ "$1.46B",
+ "2014",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/vnom"
+ ],
+ [
+ "VNQI",
+ "Vanguard Global ex-U.S. Real Estate ETF",
+ "57.01",
+ "$2.26B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vnqi"
+ ],
+ [
+ "VNR",
+ "Vanguard Natural Resources LLC",
+ "17.28",
+ "$1.44B",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/vnr"
+ ],
+ [
+ "VNRAP",
+ "Vanguard Natural Resources LLC",
+ "24.52",
+ "n/a",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/vnrap"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_28.json b/packages/flutter/example/stocks/data/stock_data_28.json
new file mode 100644
index 0000000..8486bcd
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_28.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "VNRBP",
+ "Vanguard Natural Resources LLC",
+ "22.14",
+ "$154.98M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/vnrbp"
+ ],
+ [
+ "VNRCP",
+ "Vanguard Natural Resources LLC",
+ "22.2",
+ "n/a",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/vnrcp"
+ ],
+ [
+ "VOD",
+ "Vodafone Group Plc",
+ "35.91",
+ "$95.17B",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/vod"
+ ],
+ [
+ "VONE",
+ "Vanguard Russell 1000 ETF",
+ "97.5817",
+ "$409.84M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vone"
+ ],
+ [
+ "VONG",
+ "Vanguard Russell 1000 Growth ETF",
+ "103.02",
+ "$319.36M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vong"
+ ],
+ [
+ "VONV",
+ "Vanguard Russell 1000 Value ETF",
+ "92.29",
+ "$313.79M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vonv"
+ ],
+ [
+ "VOXX",
+ "VOXX International Corporation",
+ "8.77",
+ "$211.57M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/voxx"
+ ],
+ [
+ "VPCO",
+ "Vapor Corp.",
+ "1.0999",
+ "$18.22M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Tobacco",
+ "http://www.nasdaq.com/symbol/vpco"
+ ],
+ [
+ "VRA",
+ "Vera Bradley, Inc.",
+ "19.77",
+ "$796.9M",
+ "2010",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/vra"
+ ],
+ [
+ "VRML",
+ "Vermillion, Inc.",
+ "1.96",
+ "$84.51M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/vrml"
+ ],
+ [
+ "VRNG",
+ "Vringo, Inc.",
+ "0.6901",
+ "$64.3M",
+ "n/a",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/vrng"
+ ],
+ [
+ "VRNGW",
+ "Vringo, Inc.",
+ "0.0294",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/vrngw"
+ ],
+ [
+ "VRNS",
+ "Varonis Systems, Inc.",
+ "29.88",
+ "$737.85M",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/vrns"
+ ],
+ [
+ "VRNT",
+ "Verint Systems Inc.",
+ "58.235",
+ "$3.54B",
+ "2002",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/vrnt"
+ ],
+ [
+ "VRSK",
+ "Verisk Analytics, Inc.",
+ "67.8",
+ "$11.18B",
+ "2009",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/vrsk"
+ ],
+ [
+ "VRSN",
+ "VeriSign, Inc.",
+ "63.87",
+ "$7.47B",
+ "1998",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/vrsn"
+ ],
+ [
+ "VRTA",
+ "Vestin Realty Mortgage I, Inc.",
+ "3.44",
+ "$1.2M",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/vrta"
+ ],
+ [
+ "VRTB",
+ "Vestin Realty Mortgage II, Inc.",
+ "2.94",
+ "$7.72M",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/vrtb"
+ ],
+ [
+ "VRTS",
+ "Virtus Investment Partners, Inc.",
+ "145.52",
+ "$1.32B",
+ "n/a",
+ "Finance",
+ "Investment Managers",
+ "http://www.nasdaq.com/symbol/vrts"
+ ],
+ [
+ "VRTU",
+ "Virtusa Corporation",
+ "39.97",
+ "$1.18B",
+ "2007",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/vrtu"
+ ],
+ [
+ "VRTX",
+ "Vertex Pharmaceuticals Incorporated",
+ "118.61",
+ "$28.71B",
+ "1991",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/vrtx"
+ ],
+ [
+ "VSAR",
+ "Versartis, Inc.",
+ "18.85",
+ "$456.07M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/vsar"
+ ],
+ [
+ "VSAT",
+ "ViaSat, Inc.",
+ "66.08",
+ "$3.15B",
+ "1996",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/vsat"
+ ],
+ [
+ "VSCI",
+ "Vision-Sciences, Inc.",
+ "0.51",
+ "$24.64M",
+ "1992",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/vsci"
+ ],
+ [
+ "VSCP",
+ "VirtualScopics, Inc.",
+ "3.35",
+ "$10.03M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/vscp"
+ ],
+ [
+ "VSEC",
+ "VSE Corporation",
+ "79.57",
+ "$426.18M",
+ "n/a",
+ "Consumer Services",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/vsec"
+ ],
+ [
+ "VSTM",
+ "Verastem, Inc.",
+ "7.91",
+ "$270.77M",
+ "2012",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/vstm"
+ ],
+ [
+ "VTAE",
+ "Vitae Pharmaceuticals, Inc.",
+ "14.2",
+ "$310.53M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/vtae"
+ ],
+ [
+ "VTHR",
+ "Vanguard Russell 3000 ETF ",
+ "97.446",
+ "$116.94M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vthr"
+ ],
+ [
+ "VTIP",
+ "Vanguard Short-Term Inflation-Protected Securities ETF",
+ "48.35",
+ "$1.28B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vtip"
+ ],
+ [
+ "VTL",
+ "Vital Therapies, Inc.",
+ "21.96",
+ "$523.64M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/vtl"
+ ],
+ [
+ "VTNR",
+ "Vertex Energy, Inc",
+ "3.45",
+ "$96.97M",
+ "n/a",
+ "Energy",
+ "Integrated oil Companies",
+ "http://www.nasdaq.com/symbol/vtnr"
+ ],
+ [
+ "VTSS",
+ "Vitesse Semiconductor Corporation",
+ "4.23",
+ "$291.78M",
+ "1991",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/vtss"
+ ],
+ [
+ "VTWG",
+ "Vanguard Russell 2000 Growth ETF",
+ "107.87",
+ "$107.87M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vtwg"
+ ],
+ [
+ "VTWO",
+ "Vanguard Russell 2000 ETF",
+ "97.74",
+ "$390.96M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vtwo"
+ ],
+ [
+ "VTWV",
+ "Vanguard Russell 2000 Value ETF",
+ "88.11",
+ "$70.49M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vtwv"
+ ],
+ [
+ "VUSE",
+ "Vident Core US Equity ETF",
+ "27.46",
+ "$186.73M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vuse"
+ ],
+ [
+ "VUZI",
+ "Vuzix Corporation",
+ "6.8",
+ "$83.38M",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/vuzi"
+ ],
+ [
+ "VVUS",
+ "VIVUS, Inc.",
+ "2.88",
+ "$298.59M",
+ "1994",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/vvus"
+ ],
+ [
+ "VWOB",
+ "Vanguard Emerging Markets Government Bond ETF",
+ "77.02",
+ "$200.25M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vwob"
+ ],
+ [
+ "VWR",
+ "VWR Corporation",
+ "25.68",
+ "$3.37B",
+ "2014",
+ "Consumer Durables",
+ "Diversified Electronic Products",
+ "http://www.nasdaq.com/symbol/vwr"
+ ],
+ [
+ "VXUS",
+ "Vanguard Total International Stock ETF",
+ "51.15",
+ "$3.14B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/vxus"
+ ],
+ [
+ "VYFC",
+ "Valley Financial Corporation",
+ "19.67",
+ "$94.89M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/vyfc"
+ ],
+ [
+ "WABC",
+ "Westamerica Bancorporation",
+ "43.25",
+ "$1.12B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/wabc"
+ ],
+ [
+ "WAFD",
+ "Washington Federal, Inc.",
+ "20.96",
+ "$2.02B",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/wafd"
+ ],
+ [
+ "WAFDW",
+ "Washington Federal, Inc.",
+ "5.19",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/wafdw"
+ ],
+ [
+ "WASH",
+ "Washington Trust Bancorp, Inc.",
+ "37.84",
+ "$632.88M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/wash"
+ ],
+ [
+ "WATT",
+ "Energous Corporation",
+ "9.18",
+ "$117.33M",
+ "2014",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/watt"
+ ],
+ [
+ "WAVX",
+ "Wave Systems Corp.",
+ "0.8284",
+ "$38.08M",
+ "1994",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/wavx"
+ ],
+ [
+ "WAYN",
+ "Wayne Savings Bancshares Inc.",
+ "13.6",
+ "$38.38M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/wayn"
+ ],
+ [
+ "WB",
+ "Weibo Corporation",
+ "13.76",
+ "$2.75B",
+ "2014",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/wb"
+ ],
+ [
+ "WBA",
+ "Walgreens Boots Alliance, Inc.",
+ "77.13",
+ "$72.94B",
+ "n/a",
+ "Health Care",
+ "Medical/Nursing Services",
+ "http://www.nasdaq.com/symbol/wba"
+ ],
+ [
+ "WBB",
+ "Westbury Bancorp, Inc.",
+ "16.5",
+ "$81.26M",
+ "2013",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/wbb"
+ ],
+ [
+ "WBKC",
+ "Wolverine Bancorp, Inc.",
+ "23.7652",
+ "$53.91M",
+ "2011",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/wbkc"
+ ],
+ [
+ "WBMD",
+ "WebMD Health Corp",
+ "40.91",
+ "$1.53B",
+ "2005",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/wbmd"
+ ],
+ [
+ "WDC",
+ "Western Digital Corporation",
+ "111.31",
+ "$25.72B",
+ "n/a",
+ "Technology",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/wdc"
+ ],
+ [
+ "WDFC",
+ "WD-40 Company",
+ "81.86",
+ "$1.2B",
+ "1973",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/wdfc"
+ ],
+ [
+ "WEBK",
+ "Wellesley Bancorp, Inc.",
+ "18.7999",
+ "$46.14M",
+ "2012",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/webk"
+ ],
+ [
+ "WEN",
+ "Wendy's Company (The)",
+ "11.26",
+ "$4.11B",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/wen"
+ ],
+ [
+ "WERN",
+ "Werner Enterprises, Inc.",
+ "31.69",
+ "$2.28B",
+ "1986",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/wern"
+ ],
+ [
+ "WETF",
+ "WisdomTree Investments, Inc.",
+ "18.95",
+ "$2.53B",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/wetf"
+ ],
+ [
+ "WEYS",
+ "Weyco Group, Inc.",
+ "27.04",
+ "$291.44M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/weys"
+ ],
+ [
+ "WFBI",
+ "WashingtonFirst Bankshares Inc",
+ "15.99",
+ "$129.88M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/wfbi"
+ ],
+ [
+ "WFD",
+ "Westfield Financial, Inc.",
+ "7.26",
+ "$136.44M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/wfd"
+ ],
+ [
+ "WFM",
+ "Whole Foods Market, Inc.",
+ "56.715",
+ "$20.4B",
+ "n/a",
+ "Consumer Services",
+ "Food Chains",
+ "http://www.nasdaq.com/symbol/wfm"
+ ],
+ [
+ "WGBS",
+ "WaferGen Bio-systems, Inc.",
+ "4.58",
+ "$26.89M",
+ "n/a",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/wgbs"
+ ],
+ [
+ "WHF",
+ "WhiteHorse Finance, Inc.",
+ "12.26",
+ "$183.69M",
+ "2012",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/whf"
+ ],
+ [
+ "WHFBL",
+ "WhiteHorse Finance, Inc.",
+ "25.0825",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/whfbl"
+ ],
+ [
+ "WHLM",
+ "Wilhelmina International, Inc.",
+ "5.75",
+ "$33.75M",
+ "n/a",
+ "Consumer Services",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/whlm"
+ ],
+ [
+ "WHLR",
+ "Wheeler Real Estate Investment Trust, Inc.",
+ "3.54",
+ "$26.36M",
+ "2012",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/whlr"
+ ],
+ [
+ "WHLRP",
+ "Wheeler Real Estate Investment Trust, Inc.",
+ "19.15",
+ "$13.79M",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/whlrp"
+ ],
+ [
+ "WHLRW",
+ "Wheeler Real Estate Investment Trust, Inc.",
+ "0.228",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/whlrw"
+ ],
+ [
+ "WIBC",
+ "Wilshire Bancorp, Inc.",
+ "9.78",
+ "$765.84M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/wibc"
+ ],
+ [
+ "WIFI",
+ "Boingo Wireless, Inc.",
+ "7.96",
+ "$287.24M",
+ "2011",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/wifi"
+ ],
+ [
+ "WILC",
+ "G. Willi-Food International, Ltd.",
+ "6.09",
+ "$79.01M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Food Distributors",
+ "http://www.nasdaq.com/symbol/wilc"
+ ],
+ [
+ "WILN",
+ "Wi-Lan Inc",
+ "2.669",
+ "$320.94M",
+ "n/a",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/wiln"
+ ],
+ [
+ "WIN",
+ "Windstream Holdings, Inc.",
+ "8.63",
+ "$5.2B",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/win"
+ ],
+ [
+ "WINA",
+ "Winmark Corporation",
+ "80.09",
+ "$400.25M",
+ "n/a",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/wina"
+ ],
+ [
+ "WIRE",
+ "Encore Wire Corporation",
+ "34.19",
+ "$708.42M",
+ "1992",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/wire"
+ ],
+ [
+ "WIX",
+ "Wix.com Ltd.",
+ "19.65",
+ "$748.45M",
+ "2013",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/wix"
+ ],
+ [
+ "WLB",
+ "Westmoreland Coal Company",
+ "29.75",
+ "$507.96M",
+ "n/a",
+ "Energy",
+ "Coal Mining",
+ "http://www.nasdaq.com/symbol/wlb"
+ ],
+ [
+ "WLDN",
+ "Willdan Group, Inc.",
+ "14.31",
+ "$109.14M",
+ "2006",
+ "Consumer Services",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/wldn"
+ ],
+ [
+ "WLFC",
+ "Willis Lease Finance Corporation",
+ "21.21",
+ "$178.49M",
+ "1996",
+ "Consumer Durables",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/wlfc"
+ ],
+ [
+ "WLRH",
+ "WL Ross Holding Corp.",
+ "9.96",
+ "$622.81M",
+ "n/a",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/wlrh"
+ ],
+ [
+ "WLRHU",
+ "WL Ross Holding Corp.",
+ "10.5",
+ "$420M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/wlrhu"
+ ],
+ [
+ "WLRHW",
+ "WL Ross Holding Corp.",
+ "0.64",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/wlrhw"
+ ],
+ [
+ "WMAR",
+ "West Marine, Inc.",
+ "12.28",
+ "$298.57M",
+ "1993",
+ "Consumer Durables",
+ "Automotive Aftermarket",
+ "http://www.nasdaq.com/symbol/wmar"
+ ],
+ [
+ "WMGI",
+ "Wright Medical Group, Inc.",
+ "26.17",
+ "$1.34B",
+ "2001",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/wmgi"
+ ],
+ [
+ "WMGIZ",
+ "Wright Medical Group, Inc.",
+ "4.2",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/wmgiz"
+ ],
+ [
+ "WOOD",
+ "iShares S&P Global Timber & Forestry Index Fund",
+ "56.3",
+ "$324.29M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/wood"
+ ],
+ [
+ "WOOF",
+ "VCA Inc. ",
+ "53.07",
+ "$4.46B",
+ "2001",
+ "Consumer Non-Durables",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/woof"
+ ],
+ [
+ "WPCS",
+ "WPCS International Incorporated",
+ "0.319",
+ "$4.44M",
+ "n/a",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/wpcs"
+ ],
+ [
+ "WPPGY",
+ "WPP plc",
+ "117.03",
+ "$30.8B",
+ "n/a",
+ "Technology",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/wppgy"
+ ],
+ [
+ "WPRT",
+ "Westport Innovations Inc",
+ "5.53",
+ "$352.22M",
+ "n/a",
+ "Energy",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/wprt"
+ ],
+ [
+ "WRES",
+ "Warren Resources, Inc.",
+ "1.32",
+ "$106.59M",
+ "2004",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/wres"
+ ],
+ [
+ "WRLD",
+ "World Acceptance Corporation",
+ "81.76",
+ "$779.29M",
+ "1991",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/wrld"
+ ],
+ [
+ "WSBC",
+ "WesBanco, Inc.",
+ "33.03",
+ "$967.24M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/wsbc"
+ ],
+ [
+ "WSBF",
+ "Waterstone Financial, Inc.",
+ "12.82",
+ "$441.27M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/wsbf"
+ ],
+ [
+ "WSCI",
+ "WSI Industries Inc.",
+ "6.436",
+ "$18.72M",
+ "n/a",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/wsci"
+ ],
+ [
+ "WSFS",
+ "WSFS Financial Corporation",
+ "78.03",
+ "$733.38M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/wsfs"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_29.json b/packages/flutter/example/stocks/data/stock_data_29.json
new file mode 100644
index 0000000..93021fb
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_29.json
@@ -0,0 +1,632 @@
+[
+ [
+ "WSFSL",
+ "WSFS Financial Corporation",
+ "26.3499",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/wsfsl"
+ ],
+ [
+ "WSTC",
+ "West Corporation",
+ "34.78",
+ "$2.93B",
+ "2013",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/wstc"
+ ],
+ [
+ "WSTG",
+ "Wayside Technology Group, Inc.",
+ "17.08",
+ "$83.72M",
+ "n/a",
+ "Technology",
+ "Retail: Computer Software & Peripheral Equipment",
+ "http://www.nasdaq.com/symbol/wstg"
+ ],
+ [
+ "WSTL",
+ "Westell Technologies, Inc.",
+ "1.54",
+ "$92.7M",
+ "1995",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/wstl"
+ ],
+ [
+ "WTBA",
+ "West Bancorporation",
+ "17.99",
+ "$288.18M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/wtba"
+ ],
+ [
+ "WTFC",
+ "Wintrust Financial Corporation",
+ "47.69",
+ "$2.23B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/wtfc"
+ ],
+ [
+ "WTFCW",
+ "Wintrust Financial Corporation",
+ "25.25",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/wtfcw"
+ ],
+ [
+ "WVFC",
+ "WVS Financial Corp.",
+ "11.5",
+ "$23.58M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/wvfc"
+ ],
+ [
+ "WVVI",
+ "Willamette Valley Vineyards, Inc.",
+ "5.9499",
+ "$28.93M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Beverages (Production/Distribution)",
+ "http://www.nasdaq.com/symbol/wvvi"
+ ],
+ [
+ "WWD",
+ "Woodward, Inc.",
+ "48.75",
+ "$3.17B",
+ "n/a",
+ "Energy",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/wwd"
+ ],
+ [
+ "WWWW",
+ "Web.com Group, Inc.",
+ "18.01",
+ "$946.04M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/wwww"
+ ],
+ [
+ "WYNN",
+ "Wynn Resorts, Limited",
+ "158.47",
+ "$16.06B",
+ "2002",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/wynn"
+ ],
+ [
+ "XBKS",
+ "Xenith Bankshares, Inc.",
+ "6.4001",
+ "$82.71M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/xbks"
+ ],
+ [
+ "XCRA",
+ "Xcerra Corporation",
+ "8.68",
+ "$472.42M",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/xcra"
+ ],
+ [
+ "XENE",
+ "Xenon Pharmaceuticals Inc.",
+ "19.38",
+ "$274.83M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/xene"
+ ],
+ [
+ "XENT",
+ "Intersect ENT, Inc.",
+ "22.7",
+ "$530.65M",
+ "2014",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/xent"
+ ],
+ [
+ "XGTI",
+ "XG Technology, Inc",
+ "0.49",
+ "$12.26M",
+ "2013",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/xgti"
+ ],
+ [
+ "XGTIW",
+ "XG Technology, Inc",
+ "0.26",
+ "n/a",
+ "2013",
+ "Consumer Durables",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/xgtiw"
+ ],
+ [
+ "XIV",
+ "VelocityShares Daily Inverse VIX Short Term ETN",
+ "31.285",
+ "$485.35M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/xiv"
+ ],
+ [
+ "XLNX",
+ "Xilinx, Inc.",
+ "41.675",
+ "$10.9B",
+ "1990",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/xlnx"
+ ],
+ [
+ "XLRN",
+ "Acceleron Pharma Inc.",
+ "39.98",
+ "$1.29B",
+ "2013",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/xlrn"
+ ],
+ [
+ "XNCR",
+ "Xencor, Inc.",
+ "15.06",
+ "$473.52M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/xncr"
+ ],
+ [
+ "XNET",
+ "Xunlei Limited",
+ "7.25",
+ "$471.36M",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/xnet"
+ ],
+ [
+ "XNPT",
+ "XenoPort, Inc.",
+ "7.19",
+ "$447.49M",
+ "2005",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/xnpt"
+ ],
+ [
+ "XOMA",
+ "XOMA Corporation",
+ "4.05",
+ "$469.36M",
+ "1986",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/xoma"
+ ],
+ [
+ "XONE",
+ "The ExOne Company",
+ "16.32",
+ "$235.71M",
+ "2013",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/xone"
+ ],
+ [
+ "XOOM",
+ "Xoom Corporation",
+ "16.43",
+ "$631.69M",
+ "2013",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/xoom"
+ ],
+ [
+ "XPLR",
+ "Xplore Technologies Corp",
+ "6.82",
+ "$57.83M",
+ "n/a",
+ "Technology",
+ "Computer Manufacturing",
+ "http://www.nasdaq.com/symbol/xplr"
+ ],
+ [
+ "XRAY",
+ "DENTSPLY International Inc.",
+ "52.53",
+ "$7.43B",
+ "1987",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/xray"
+ ],
+ [
+ "XTLB",
+ "XTL Biopharmaceuticals Ltd.",
+ "2.21",
+ "$25.73M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/xtlb"
+ ],
+ [
+ "XXIA",
+ "Ixia",
+ "10.45",
+ "$819.24M",
+ "2000",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/xxia"
+ ],
+ [
+ "YDIV",
+ "First Trust NASDAQ Technology Dividend Index Fund",
+ "19.3412",
+ "$12.57M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ydiv"
+ ],
+ [
+ "YDLE",
+ "Yodlee, Inc.",
+ "13.01",
+ "$380.3M",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/ydle"
+ ],
+ [
+ "YHOO",
+ "Yahoo! Inc.",
+ "44.11",
+ "$41.79B",
+ "1996",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/yhoo"
+ ],
+ [
+ "YNDX",
+ "Yandex N.V.",
+ "17.01",
+ "$5.41B",
+ "2011",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/yndx"
+ ],
+ [
+ "YOD",
+ "You On Demand Holdings, Inc.",
+ "2.25",
+ "$53.4M",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/yod"
+ ],
+ [
+ "YORW",
+ "The York Water Company",
+ "23.07",
+ "$295.51M",
+ "n/a",
+ "Public Utilities",
+ "Water Supply",
+ "http://www.nasdaq.com/symbol/yorw"
+ ],
+ [
+ "YPRO",
+ "AdvisorShares YieldPro ETF",
+ "23.94",
+ "$68.23M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ypro"
+ ],
+ [
+ "YRCW",
+ "YRC Worldwide, Inc.",
+ "19.96",
+ "$623.91M",
+ "n/a",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/yrcw"
+ ],
+ [
+ "YY",
+ "YY Inc.",
+ "61.82",
+ "$3.5B",
+ "2012",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/yy"
+ ],
+ [
+ "Z",
+ "Zillow Group, Inc.",
+ "125.42",
+ "$5.12B",
+ "2011",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/z"
+ ],
+ [
+ "ZAGG",
+ "ZAGG Inc",
+ "6.51",
+ "$197.48M",
+ "n/a",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/zagg"
+ ],
+ [
+ "ZAZA",
+ "ZaZa Energy Corporation",
+ "2.11",
+ "$27.28M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/zaza"
+ ],
+ [
+ "ZBRA",
+ "Zebra Technologies Corporation",
+ "91",
+ "$4.63B",
+ "1991",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/zbra"
+ ],
+ [
+ "ZEUS",
+ "Olympic Steel, Inc.",
+ "16.35",
+ "$179.56M",
+ "1994",
+ "Basic Industries",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/zeus"
+ ],
+ [
+ "ZFGN",
+ "Zafgen, Inc.",
+ "40.64",
+ "$1.08B",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/zfgn"
+ ],
+ [
+ "ZGNX",
+ "Zogenix, Inc.",
+ "1.55",
+ "$237.21M",
+ "2010",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/zgnx"
+ ],
+ [
+ "ZHNE",
+ "Zhone Technologies, Inc.",
+ "1.54",
+ "$50.05M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/zhne"
+ ],
+ [
+ "ZINC",
+ "Horsehead Holding Corp.",
+ "13.49",
+ "$763.52M",
+ "2007",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/zinc"
+ ],
+ [
+ "ZION",
+ "Zions Bancorporation",
+ "26.33",
+ "$5.34B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/zion"
+ ],
+ [
+ "ZIONW",
+ "Zions Bancorporation",
+ "3.4",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/zionw"
+ ],
+ [
+ "ZIONZ",
+ "Zions Bancorporation",
+ "2.45",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/zionz"
+ ],
+ [
+ "ZIOP",
+ "ZIOPHARM Oncology Inc",
+ "9.56",
+ "$1.11B",
+ "n/a",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/ziop"
+ ],
+ [
+ "ZIV",
+ "VelocityShares Daily Inverse VIX Medium Term ETN",
+ "41.1",
+ "$37.81M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/ziv"
+ ],
+ [
+ "ZIXI",
+ "Zix Corporation",
+ "3.81",
+ "$216.48M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/zixi"
+ ],
+ [
+ "ZLTQ",
+ "ZELTIQ Aesthetics, Inc.",
+ "34.23",
+ "$1.3B",
+ "2011",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/zltq"
+ ],
+ [
+ "ZN",
+ "Zion Oil & Gas Inc",
+ "1.85",
+ "$65.29M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/zn"
+ ],
+ [
+ "ZNGA",
+ "Zynga Inc.",
+ "2.32",
+ "$2.09B",
+ "2011",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/znga"
+ ],
+ [
+ "ZNWAA",
+ "Zion Oil & Gas Inc",
+ "n/a",
+ "n/a",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/znwaa"
+ ],
+ [
+ "ZSAN",
+ "Zosano Pharma Corporation",
+ "11.09",
+ "$131.04M",
+ "2015",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/zsan"
+ ],
+ [
+ "ZSPH",
+ "ZS Pharma, Inc.",
+ "50.51",
+ "$1.05B",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/zsph"
+ ],
+ [
+ "ZU",
+ "zulily, inc.",
+ "14.4",
+ "$1.8B",
+ "2013",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/zu"
+ ],
+ [
+ "ZUMZ",
+ "Zumiez Inc.",
+ "38.77",
+ "$1.13B",
+ "2005",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/zumz"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_3.json b/packages/flutter/example/stocks/data/stock_data_3.json
new file mode 100644
index 0000000..67edf86
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_3.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "BDBD",
+ "Boulder Brands, Inc.",
+ "10.81",
+ "$660.85M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/bdbd"
+ ],
+ [
+ "BDCV",
+ "BDCA Venture, Inc.",
+ "4.89",
+ "$48.52M",
+ "2011",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/bdcv"
+ ],
+ [
+ "BDE",
+ "Black Diamond, Inc.",
+ "6.67",
+ "$218.04M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Recreational Products/Toys",
+ "http://www.nasdaq.com/symbol/bde"
+ ],
+ [
+ "BDGE",
+ "Bridge Bancorp, Inc.",
+ "25.68",
+ "$299.19M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bdge"
+ ],
+ [
+ "BDMS",
+ "Birner Dental Management Services, Inc.",
+ "15",
+ "$27.9M",
+ "1998",
+ "Health Care",
+ "Medical/Nursing Services",
+ "http://www.nasdaq.com/symbol/bdms"
+ ],
+ [
+ "BDSI",
+ "BioDelivery Sciences International, Inc.",
+ "14.41",
+ "$739.03M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/bdsi"
+ ],
+ [
+ "BEAT",
+ "BioTelemetry, Inc.",
+ "9.51",
+ "$253.76M",
+ "2008",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/beat"
+ ],
+ [
+ "BEAV",
+ "B/E Aerospace, Inc.",
+ "64.54",
+ "$6.8B",
+ "1990",
+ "Consumer Durables",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/beav"
+ ],
+ [
+ "BEBE",
+ "bebe stores, inc.",
+ "3.84",
+ "$305.72M",
+ "1998",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/bebe"
+ ],
+ [
+ "BECN",
+ "Beacon Roofing Supply, Inc.",
+ "28.76",
+ "$1.42B",
+ "2004",
+ "Consumer Services",
+ "RETAIL: Building Materials",
+ "http://www.nasdaq.com/symbol/becn"
+ ],
+ [
+ "BELFA",
+ "Bel Fuse Inc.",
+ "19.38",
+ "$230.23M",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/belfa"
+ ],
+ [
+ "BELFB",
+ "Bel Fuse Inc.",
+ "19.51",
+ "$231.77M",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/belfb"
+ ],
+ [
+ "BFIN",
+ "BankFinancial Corporation",
+ "11.97",
+ "$252.59M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/bfin"
+ ],
+ [
+ "BGCP",
+ "BGC Partners, Inc.",
+ "9.44",
+ "$2.07B",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/bgcp"
+ ],
+ [
+ "BGFV",
+ "Big 5 Sporting Goods Corporation",
+ "12.44",
+ "$275.84M",
+ "2002",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/bgfv"
+ ],
+ [
+ "BGMD",
+ "BG Medicine, Inc.",
+ "0.8201",
+ "$28.23M",
+ "2011",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/bgmd"
+ ],
+ [
+ "BHACU",
+ "Barington/Hilco Acquisition Corp.",
+ "9.96",
+ "n/a",
+ "2015",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/bhacu"
+ ],
+ [
+ "BHBK",
+ "Blue Hills Bancorp, Inc.",
+ "12.87",
+ "$366.37M",
+ "2014",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bhbk"
+ ],
+ [
+ "BIB",
+ "ProShares Ultra Nasdaq Biotechnology",
+ "152.9",
+ "$504.57M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/bib"
+ ],
+ [
+ "BICK",
+ "First Trust BICK Index Fund",
+ "23.96",
+ "$16.77M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/bick"
+ ],
+ [
+ "BIDU",
+ "Baidu, Inc.",
+ "209.63",
+ "$73.52B",
+ "2005",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/bidu"
+ ],
+ [
+ "BIIB",
+ "Biogen Idec Inc.",
+ "408.05",
+ "$95.73B",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/biib"
+ ],
+ [
+ "BIND",
+ "BIND Therapeutics, Inc.",
+ "6.42",
+ "$106.24M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/bind"
+ ],
+ [
+ "BIOC",
+ "Biocept, Inc.",
+ "1.45",
+ "$6.45M",
+ "2014",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/bioc"
+ ],
+ [
+ "BIOD",
+ "Biodel Inc.",
+ "1.39",
+ "$34.12M",
+ "2007",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/biod"
+ ],
+ [
+ "BIOL",
+ "Biolase, Inc.",
+ "2.06",
+ "$119.72M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/biol"
+ ],
+ [
+ "BIOS",
+ "BioScrip, Inc.",
+ "6.04",
+ "$414.56M",
+ "n/a",
+ "Health Care",
+ "Medical/Nursing Services",
+ "http://www.nasdaq.com/symbol/bios"
+ ],
+ [
+ "BIS",
+ "ProShares UltraShort Nasdaq Biotechnology",
+ "36.74",
+ "$44.09M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/bis"
+ ],
+ [
+ "BJRI",
+ "BJ's Restaurants, Inc.",
+ "53.07",
+ "$1.38B",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/bjri"
+ ],
+ [
+ "BKCC",
+ "BlackRock Kelso Capital Corporation",
+ "8.6",
+ "$641.11M",
+ "2007",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/bkcc"
+ ],
+ [
+ "BKEP",
+ "Blueknight Energy Partners L.P., L.L.C.",
+ "7.19",
+ "$235.59M",
+ "2011",
+ "Energy",
+ "Natural Gas Distribution",
+ "http://www.nasdaq.com/symbol/bkep"
+ ],
+ [
+ "BKEPP",
+ "Blueknight Energy Partners L.P., L.L.C.",
+ "8.82",
+ "$266M",
+ "n/a",
+ "Energy",
+ "Natural Gas Distribution",
+ "http://www.nasdaq.com/symbol/bkepp"
+ ],
+ [
+ "BKMU",
+ "Bank Mutual Corporation",
+ "7.15",
+ "$332.93M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/bkmu"
+ ],
+ [
+ "BKSC",
+ "Bank of South Carolina Corp.",
+ "14.91",
+ "$66.52M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bksc"
+ ],
+ [
+ "BKYF",
+ "The Bank of Kentucky Financial Corp.",
+ "47.68",
+ "$366.75M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/bkyf"
+ ],
+ [
+ "BLCM",
+ "Bellicum Pharmaceuticals, Inc.",
+ "21.06",
+ "$544.39M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/blcm"
+ ],
+ [
+ "BLDP",
+ "Ballard Power Systems, Inc.",
+ "2.41",
+ "$318.37M",
+ "n/a",
+ "Energy",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/bldp"
+ ],
+ [
+ "BLDR",
+ "Builders FirstSource, Inc.",
+ "6.5",
+ "$637.94M",
+ "2005",
+ "Consumer Services",
+ "RETAIL: Building Materials",
+ "http://www.nasdaq.com/symbol/bldr"
+ ],
+ [
+ "BLFS",
+ "BioLife Solutions, Inc.",
+ "2.15",
+ "$25.98M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/blfs"
+ ],
+ [
+ "BLIN ",
+ "Bridgeline Digital, Inc.",
+ "0.5",
+ "$10.99M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/blin "
+ ],
+ [
+ "BLKB",
+ "Blackbaud, Inc.",
+ "46.27",
+ "$2.14B",
+ "2004",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/blkb"
+ ],
+ [
+ "BLMN",
+ "Bloomin' Brands, Inc.",
+ "25.4",
+ "$3.19B",
+ "2012",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/blmn"
+ ],
+ [
+ "BLMT",
+ "BSB Bancorp, Inc.",
+ "18.98",
+ "$172.02M",
+ "2011",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/blmt"
+ ],
+ [
+ "BLPH",
+ "Bellerophon Therapeutics, Inc.",
+ "9.42",
+ "$121.57M",
+ "2015",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/blph"
+ ],
+ [
+ "BLRX",
+ "BioLineRx Ltd.",
+ "2.42",
+ "$82.56M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/blrx"
+ ],
+ [
+ "BLUE",
+ "bluebird bio, Inc.",
+ "93.32",
+ "$2.69B",
+ "2013",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/blue"
+ ],
+ [
+ "BLVD",
+ "Boulevard Acquisition Corp.",
+ "9.75",
+ "$268.73M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/blvd"
+ ],
+ [
+ "BLVDU",
+ "Boulevard Acquisition Corp.",
+ "9.95",
+ "$274.25M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/blvdu"
+ ],
+ [
+ "BLVDW",
+ "Boulevard Acquisition Corp.",
+ "0.5501",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/blvdw"
+ ],
+ [
+ "BMRC",
+ "Bank of Marin Bancorp",
+ "50.18",
+ "$297.74M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bmrc"
+ ],
+ [
+ "BMRN",
+ "BioMarin Pharmaceutical Inc.",
+ "107.16",
+ "$15.8B",
+ "1999",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/bmrn"
+ ],
+ [
+ "BMTC",
+ "Bryn Mawr Bank Corporation",
+ "29.59",
+ "$406.34M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bmtc"
+ ],
+ [
+ "BNCL",
+ "Beneficial Bancorp, Inc.",
+ "11.22",
+ "$843.25M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/bncl"
+ ],
+ [
+ "BNCN",
+ "BNC Bancorp",
+ "16.41",
+ "$484.04M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bncn"
+ ],
+ [
+ "BNDX",
+ "Vanguard Total International Bond ETF",
+ "53.57",
+ "$1.85B",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/bndx"
+ ],
+ [
+ "BNFT",
+ "Benefitfocus, Inc.",
+ "21.95",
+ "$560.94M",
+ "2013",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/bnft"
+ ],
+ [
+ "BNSO",
+ "Bonso Electronics International, Inc.",
+ "1.419",
+ "$7.45M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/bnso"
+ ],
+ [
+ "BOBE",
+ "Bob Evans Farms, Inc.",
+ "56.9",
+ "$1.34B",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/bobe"
+ ],
+ [
+ "BOCH",
+ "Bank of Commerce Holdings (CA)",
+ "5.7399",
+ "$76.3M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/boch"
+ ],
+ [
+ "BOFI",
+ "BofI Holding, Inc.",
+ "90.32",
+ "$1.36B",
+ "2005",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/bofi"
+ ],
+ [
+ "BOKF",
+ "BOK Financial Corporation",
+ "59.54",
+ "$4.13B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bokf"
+ ],
+ [
+ "BONA",
+ "Bona Film Group Limited",
+ "6.89",
+ "$419.44M",
+ "2010",
+ "Consumer Services",
+ "Movies/Entertainment",
+ "http://www.nasdaq.com/symbol/bona"
+ ],
+ [
+ "BONT",
+ "The Bon-Ton Stores, Inc.",
+ "5.53",
+ "$112.99M",
+ "1991",
+ "Consumer Services",
+ "Department/Specialty Retail Stores",
+ "http://www.nasdaq.com/symbol/bont"
+ ],
+ [
+ "BOOM",
+ "Dynamic Materials Corporation",
+ "14.79",
+ "$206.75M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/boom"
+ ],
+ [
+ "BOSC",
+ "B.O.S. Better Online Solutions",
+ "3.1",
+ "$4.15M",
+ "n/a",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/bosc"
+ ],
+ [
+ "BOTA",
+ "Biota Pharmaceuticals, Inc.",
+ "2.46",
+ "$86.35M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/bota"
+ ],
+ [
+ "BOTJ",
+ "Bank of the James Financial Group, Inc.",
+ "11",
+ "$37.01M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/botj"
+ ],
+ [
+ "BPFH",
+ "Boston Private Financial Holdings, Inc.",
+ "12.68",
+ "$1.05B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bpfh"
+ ],
+ [
+ "BPFHP",
+ "Boston Private Financial Holdings, Inc.",
+ "25.6",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bpfhp"
+ ],
+ [
+ "BPFHW",
+ "Boston Private Financial Holdings, Inc.",
+ "5.652",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bpfhw"
+ ],
+ [
+ "BPOP",
+ "Popular, Inc.",
+ "33.21",
+ "$3.44B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bpop"
+ ],
+ [
+ "BPOPM",
+ "Popular, Inc.",
+ "21.82",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bpopm"
+ ],
+ [
+ "BPOPN",
+ "Popular, Inc.",
+ "22.77",
+ "$273.24M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bpopn"
+ ],
+ [
+ "BPTH",
+ "Bio-Path Holdings, Inc.",
+ "2.13",
+ "$190.08M",
+ "n/a",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/bpth"
+ ],
+ [
+ "BRCD",
+ "Brocade Communications Systems, Inc.",
+ "12.06",
+ "$5.2B",
+ "1999",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/brcd"
+ ],
+ [
+ "BRCM",
+ "Broadcom Corporation",
+ "44.68",
+ "$26.76B",
+ "1998",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/brcm"
+ ],
+ [
+ "BRDR",
+ "Borderfree, Inc.",
+ "7.41",
+ "$235.73M",
+ "2014",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/brdr"
+ ],
+ [
+ "BREW",
+ "Craft Brew Alliance, Inc.",
+ "12.26",
+ "$233.85M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Beverages (Production/Distribution)",
+ "http://www.nasdaq.com/symbol/brew"
+ ],
+ [
+ "BRID",
+ "Bridgford Foods Corporation",
+ "7.58",
+ "$69.07M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Specialty Foods",
+ "http://www.nasdaq.com/symbol/brid"
+ ],
+ [
+ "BRKL",
+ "Brookline Bancorp, Inc.",
+ "9.73",
+ "$681.32M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/brkl"
+ ],
+ [
+ "BRKR",
+ "Bruker Corporation",
+ "18.77",
+ "$3.16B",
+ "n/a",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/brkr"
+ ],
+ [
+ "BRKS",
+ "Brooks Automation, Inc.",
+ "12.23",
+ "$823.25M",
+ "1995",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/brks"
+ ],
+ [
+ "BRLI",
+ "Bio-Reference Laboratories, Inc.",
+ "34.32",
+ "$952.37M",
+ "n/a",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/brli"
+ ],
+ [
+ "BSDM",
+ "BSD Medical Corporation",
+ "0.41",
+ "$16.27M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/bsdm"
+ ],
+ [
+ "BSET",
+ "Bassett Furniture Industries, Incorporated",
+ "25.24",
+ "$266.79M",
+ "n/a",
+ "Consumer Durables",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/bset"
+ ],
+ [
+ "BSF",
+ "Bear State Financial, Inc.",
+ "10.5452",
+ "$390.18M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/bsf"
+ ],
+ [
+ "BSFT",
+ "BroadSoft, Inc.",
+ "27.82",
+ "$801.41M",
+ "2010",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/bsft"
+ ],
+ [
+ "BSPM",
+ "Biostar Pharmaceuticals, Inc.",
+ "1.25",
+ "$19.35M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/bspm"
+ ],
+ [
+ "BSQR",
+ "BSQUARE Corporation",
+ "4.71",
+ "$55.23M",
+ "1999",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/bsqr"
+ ],
+ [
+ "BSRR",
+ "Sierra Bancorp",
+ "16.53",
+ "$227.91M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bsrr"
+ ],
+ [
+ "BSTC",
+ "BioSpecifics Technologies Corp",
+ "39.29",
+ "$255.41M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/bstc"
+ ],
+ [
+ "BUR",
+ "Burcon Nutrascience Corp",
+ "2.57",
+ "$87.75M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/bur"
+ ],
+ [
+ "BUSE",
+ "First Busey Corporation",
+ "6.41",
+ "$556.72M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/buse"
+ ],
+ [
+ "BV",
+ "Bazaarvoice, Inc.",
+ "9.24",
+ "$726.59M",
+ "2012",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/bv"
+ ],
+ [
+ "BVA",
+ "Cordia Bancorp Inc.",
+ "3.8901",
+ "$25.3M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/bva"
+ ],
+ [
+ "BVSN",
+ "BroadVision, Inc.",
+ "6.1",
+ "$29.42M",
+ "1996",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/bvsn"
+ ],
+ [
+ "BWEN",
+ "Broadwind Energy, Inc.",
+ "5.09",
+ "$75.44M",
+ "n/a",
+ "Capital Goods",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/bwen"
+ ],
+ [
+ "BWFG",
+ "Bankwell Financial Group, Inc.",
+ "18.82",
+ "$133.03M",
+ "2014",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bwfg"
+ ],
+ [
+ "BWINA",
+ "Baldwin & Lyons, Inc.",
+ "23.8",
+ "$356.41M",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/bwina"
+ ],
+ [
+ "BWINB",
+ "Baldwin & Lyons, Inc.",
+ "23.19",
+ "$347.27M",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/bwinb"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_4.json b/packages/flutter/example/stocks/data/stock_data_4.json
new file mode 100644
index 0000000..e2965e3
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_4.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "BWLD",
+ "Buffalo Wild Wings, Inc.",
+ "190.18",
+ "$3.6B",
+ "2003",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/bwld"
+ ],
+ [
+ "BYBK",
+ "Bay Bancorp, Inc.",
+ "4.75",
+ "$52.4M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bybk"
+ ],
+ [
+ "BYFC",
+ "Broadway Financial Corporation",
+ "1.37",
+ "$39.84M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/byfc"
+ ],
+ [
+ "BYLK",
+ "Baylake Corp",
+ "12.31",
+ "$112.28M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/bylk"
+ ],
+ [
+ "CA",
+ "CA Inc.",
+ "32.83",
+ "$14.54B",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/ca"
+ ],
+ [
+ "CAAS",
+ "China Automotive Systems, Inc.",
+ "6.78",
+ "$217.78M",
+ "n/a",
+ "Capital Goods",
+ "Auto Parts:O.E.M.",
+ "http://www.nasdaq.com/symbol/caas"
+ ],
+ [
+ "CAC",
+ "Camden National Corporation",
+ "37.75",
+ "$280.16M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cac"
+ ],
+ [
+ "CACB",
+ "Cascade Bancorp",
+ "4.8",
+ "$347.91M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cacb"
+ ],
+ [
+ "CACC",
+ "Credit Acceptance Corporation",
+ "172.26",
+ "$3.55B",
+ "1992",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/cacc"
+ ],
+ [
+ "CACG",
+ "Chart Acquisition Corp.",
+ "9.77",
+ "$85.83M",
+ "2013",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cacg"
+ ],
+ [
+ "CACGU",
+ "Chart Acquisition Corp.",
+ "10.02",
+ "n/a",
+ "2012",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cacgu"
+ ],
+ [
+ "CACGW",
+ "Chart Acquisition Corp.",
+ "0.55",
+ "n/a",
+ "2013",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cacgw"
+ ],
+ [
+ "CACQ",
+ "Caesars Acquisition Company",
+ "7.87",
+ "$1.07B",
+ "n/a",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/cacq"
+ ],
+ [
+ "CADC",
+ "China Advanced Construction Materials Group, Inc.",
+ "4.24",
+ "$8.82M",
+ "n/a",
+ "Basic Industries",
+ "Engineering & Construction",
+ "http://www.nasdaq.com/symbol/cadc"
+ ],
+ [
+ "CADT",
+ "DT Asia Investments Limited",
+ "9.66",
+ "$86.24M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cadt"
+ ],
+ [
+ "CADTR",
+ "DT Asia Investments Limited",
+ "0.16",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cadtr"
+ ],
+ [
+ "CADTU",
+ "DT Asia Investments Limited",
+ "10.02",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cadtu"
+ ],
+ [
+ "CADTW",
+ "DT Asia Investments Limited",
+ "0.11",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cadtw"
+ ],
+ [
+ "CAKE",
+ "The Cheesecake Factory Incorporated",
+ "49.22",
+ "$2.44B",
+ "1992",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/cake"
+ ],
+ [
+ "CALA",
+ "Calithera Biosciences, Inc.",
+ "16.21",
+ "$290.65M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cala"
+ ],
+ [
+ "CALD",
+ "Callidus Software, Inc.",
+ "14.33",
+ "$696.85M",
+ "2003",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/cald"
+ ],
+ [
+ "CALI",
+ "China Auto Logistics Inc.",
+ "1.31",
+ "$5.29M",
+ "n/a",
+ "Consumer Services",
+ "Motor Vehicles",
+ "http://www.nasdaq.com/symbol/cali"
+ ],
+ [
+ "CALL",
+ "magicJack VocalTec Ltd",
+ "7.86",
+ "$140.16M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/call"
+ ],
+ [
+ "CALM",
+ "Cal-Maine Foods, Inc.",
+ "36.9",
+ "$1.79B",
+ "1996",
+ "Consumer Non-Durables",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/calm"
+ ],
+ [
+ "CAMB",
+ "CAMBRIDGE CAPITAL ACQUISITION CORPORATION",
+ "9.88",
+ "$104.08M",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/camb"
+ ],
+ [
+ "CAMBU",
+ "CAMBRIDGE CAPITAL ACQUISITION CORPORATION",
+ "10.2999",
+ "n/a",
+ "2013",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cambu"
+ ],
+ [
+ "CAMBW",
+ "CAMBRIDGE CAPITAL ACQUISITION CORPORATION",
+ "0.22",
+ "n/a",
+ "2014",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cambw"
+ ],
+ [
+ "CAMP",
+ "CalAmp Corp.",
+ "18.8",
+ "$680.66M",
+ "1983",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/camp"
+ ],
+ [
+ "CAMT",
+ "Camtek Ltd.",
+ "3.07",
+ "$93.55M",
+ "2000",
+ "Capital Goods",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/camt"
+ ],
+ [
+ "CAPN",
+ "Capnia, Inc.",
+ "5.45",
+ "$36.89M",
+ "2014",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/capn"
+ ],
+ [
+ "CAPNW",
+ "Capnia, Inc.",
+ "0.99",
+ "n/a",
+ "2014",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/capnw"
+ ],
+ [
+ "CAR",
+ "Avis Budget Group, Inc.",
+ "62.45",
+ "$6.63B",
+ "n/a",
+ "Consumer Services",
+ "Rental/Leasing Companies",
+ "http://www.nasdaq.com/symbol/car"
+ ],
+ [
+ "CARA",
+ "Cara Therapeutics, Inc.",
+ "10.91",
+ "$248.51M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cara"
+ ],
+ [
+ "CARB",
+ "Carbonite, Inc.",
+ "14.8",
+ "$402.84M",
+ "2011",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/carb"
+ ],
+ [
+ "CARO",
+ "Carolina Financial Corporation",
+ "13.85",
+ "$224.27M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/caro"
+ ],
+ [
+ "CART",
+ "Carolina Trust Bank",
+ "5.55",
+ "$25.72M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cart"
+ ],
+ [
+ "CARV",
+ "Carver Bancorp, Inc.",
+ "5.99",
+ "$22.14M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/carv"
+ ],
+ [
+ "CARZ",
+ "First Trust NASDAQ Global Auto Index Fund",
+ "40.719",
+ "$69.22M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/carz"
+ ],
+ [
+ "CASH",
+ "Meta Financial Group, Inc.",
+ "35.8",
+ "$229.88M",
+ "1993",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/cash"
+ ],
+ [
+ "CASI",
+ "CASI Pharmaceuticals, Inc.",
+ "1.6501",
+ "$53.54M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/casi"
+ ],
+ [
+ "CASM",
+ "CAS Medical Systems, Inc.",
+ "1.36",
+ "$26.5M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/casm"
+ ],
+ [
+ "CASS",
+ "Cass Information Systems, Inc",
+ "49.25",
+ "$567.18M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cass"
+ ],
+ [
+ "CASY",
+ "Caseys General Stores, Inc.",
+ "91.15",
+ "$3.53B",
+ "1983",
+ "Consumer Durables",
+ "Automotive Aftermarket",
+ "http://www.nasdaq.com/symbol/casy"
+ ],
+ [
+ "CATM",
+ "Cardtronics, Inc.",
+ "38.27",
+ "$1.7B",
+ "2007",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/catm"
+ ],
+ [
+ "CATY",
+ "Cathay General Bancorp",
+ "25.77",
+ "$2.05B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/caty"
+ ],
+ [
+ "CATYW",
+ "Cathay General Bancorp",
+ "6.495",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/catyw"
+ ],
+ [
+ "CAVM",
+ "Cavium, Inc.",
+ "66.96",
+ "$3.61B",
+ "2007",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/cavm"
+ ],
+ [
+ "CBAK",
+ "China BAK Battery, Inc.",
+ "2.4",
+ "$30.29M",
+ "n/a",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/cbak"
+ ],
+ [
+ "CBAN",
+ "Colony Bankcorp, Inc.",
+ "7.9399",
+ "$67.01M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cban"
+ ],
+ [
+ "CBAY",
+ "Cymabay Therapeutics Inc.",
+ "12.7",
+ "$186.52M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cbay"
+ ],
+ [
+ "CBDE",
+ "CBD Energy Limited",
+ "0.9",
+ "$1.83M",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/cbde"
+ ],
+ [
+ "CBF",
+ "Capital Bank Financial Corp.",
+ "26.24",
+ "$1.25B",
+ "2012",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cbf"
+ ],
+ [
+ "CBFV",
+ "CB Financial Services, Inc.",
+ "20.22",
+ "$88.68M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cbfv"
+ ],
+ [
+ "CBIN",
+ "Community Bank Shares of Indiana, Inc.",
+ "27.3499",
+ "$94.24M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cbin"
+ ],
+ [
+ "CBLI",
+ "Cleveland BioLabs, Inc.",
+ "3.7",
+ "$12.71M",
+ "2006",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/cbli"
+ ],
+ [
+ "CBMG",
+ "Cellular Biomedicine Group, Inc.",
+ "25.79",
+ "$256.51M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/cbmg"
+ ],
+ [
+ "CBMX",
+ "CombiMatrix Corporation",
+ "1.92",
+ "$21.24M",
+ "n/a",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/cbmx"
+ ],
+ [
+ "CBNJ",
+ "Cape Bancorp, Inc.",
+ "8.755",
+ "$100.47M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cbnj"
+ ],
+ [
+ "CBNK",
+ "Chicopee Bancorp, Inc.",
+ "16.16",
+ "$85.82M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/cbnk"
+ ],
+ [
+ "CBOE",
+ "CBOE Holdings, Inc.",
+ "62.61",
+ "$5.28B",
+ "2010",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/cboe"
+ ],
+ [
+ "CBPO",
+ "China Biologic Products, Inc.",
+ "77.25",
+ "$1.9B",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/cbpo"
+ ],
+ [
+ "CBRL",
+ "Cracker Barrel Old Country Store, Inc.",
+ "134.71",
+ "$3.22B",
+ "1981",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/cbrl"
+ ],
+ [
+ "CBRX",
+ "Columbia Laboratories, Inc.",
+ "6",
+ "$64.63M",
+ "1988",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cbrx"
+ ],
+ [
+ "CBSH",
+ "Commerce Bancshares, Inc.",
+ "42.54",
+ "$4.3B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cbsh"
+ ],
+ [
+ "CBSHP",
+ "Commerce Bancshares, Inc.",
+ "25.45",
+ "$2.33B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cbshp"
+ ],
+ [
+ "CCBG",
+ "Capital City Bank Group",
+ "15.55",
+ "$271.08M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ccbg"
+ ],
+ [
+ "CCCL",
+ "China Ceramics Co., Ltd.",
+ "0.8799",
+ "$17.98M",
+ "n/a",
+ "Capital Goods",
+ "Building Materials",
+ "http://www.nasdaq.com/symbol/cccl"
+ ],
+ [
+ "CCCR",
+ "China Commercial Credit, Inc.",
+ "2.9801",
+ "$36.52M",
+ "2013",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cccr"
+ ],
+ [
+ "CCIH",
+ "ChinaCache International Holdings Ltd.",
+ "10.46",
+ "$244.81M",
+ "2010",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/ccih"
+ ],
+ [
+ "CCLP",
+ "CSI Compressco LP",
+ "16.66",
+ "$552.15M",
+ "2011",
+ "Energy",
+ "Oilfield Services/Equipment",
+ "http://www.nasdaq.com/symbol/cclp"
+ ],
+ [
+ "CCMP",
+ "Cabot Microelectronics Corporation",
+ "51.52",
+ "$1.24B",
+ "2000",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/ccmp"
+ ],
+ [
+ "CCNE",
+ "CNB Financial Corporation",
+ "17",
+ "$244.27M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ccne"
+ ],
+ [
+ "CCOI",
+ "Cogent Communications Holdings, Inc.",
+ "39.4",
+ "$1.82B",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/ccoi"
+ ],
+ [
+ "CCRN",
+ "Cross Country Healthcare, Inc.",
+ "12.19",
+ "$381M",
+ "2001",
+ "Technology",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/ccrn"
+ ],
+ [
+ "CCUR",
+ "Concurrent Computer Corporation",
+ "6.18",
+ "$58.4M",
+ "n/a",
+ "Technology",
+ "Computer Manufacturing",
+ "http://www.nasdaq.com/symbol/ccur"
+ ],
+ [
+ "CCXI",
+ "ChemoCentryx, Inc.",
+ "8.27",
+ "$358.43M",
+ "2012",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ccxi"
+ ],
+ [
+ "CDC",
+ "Compass EMP US 100 High Dividend Enhanced Volatility Weighted ",
+ "37.02",
+ "$24.06M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cdc"
+ ],
+ [
+ "CDK",
+ "CDK Global, Inc.",
+ "48",
+ "$7.72B",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cdk"
+ ],
+ [
+ "CDNA",
+ "CareDx, Inc.",
+ "6.1",
+ "$72M",
+ "2014",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/cdna"
+ ],
+ [
+ "CDNS",
+ "Cadence Design Systems, Inc.",
+ "18.5",
+ "$5.42B",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/cdns"
+ ],
+ [
+ "CDTI",
+ "Clean Diesel Technologies, Inc.",
+ "2.03",
+ "$25.45M",
+ "n/a",
+ "Capital Goods",
+ "Pollution Control Equipment",
+ "http://www.nasdaq.com/symbol/cdti"
+ ],
+ [
+ "CDW",
+ "CDW Corporation",
+ "37.75",
+ "$6.5B",
+ "2013",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/cdw"
+ ],
+ [
+ "CDXS",
+ "Codexis, Inc.",
+ "3.47",
+ "$137.24M",
+ "2010",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/cdxs"
+ ],
+ [
+ "CDZI",
+ "Cadiz, Inc.",
+ "10.87",
+ "$176.15M",
+ "n/a",
+ "Public Utilities",
+ "Water Supply",
+ "http://www.nasdaq.com/symbol/cdzi"
+ ],
+ [
+ "CECE",
+ "CECO Environmental Corp.",
+ "14.44",
+ "$373.5M",
+ "n/a",
+ "Capital Goods",
+ "Pollution Control Equipment",
+ "http://www.nasdaq.com/symbol/cece"
+ ],
+ [
+ "CECO",
+ "Career Education Corporation",
+ "5.27",
+ "$354.56M",
+ "1998",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/ceco"
+ ],
+ [
+ "CELG",
+ "Celgene Corporation",
+ "123.43",
+ "$98.58B",
+ "1987",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/celg"
+ ],
+ [
+ "CELGZ",
+ "Celgene Corporation",
+ "3.18",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/celgz"
+ ],
+ [
+ "CEMI",
+ "Chembio Diagnostics, Inc.",
+ "4.14",
+ "$39.79M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cemi"
+ ],
+ [
+ "CEMP",
+ "Cempra, Inc.",
+ "29.61",
+ "$1.27B",
+ "2012",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cemp"
+ ],
+ [
+ "CENT",
+ "Central Garden & Pet Company",
+ "9.08",
+ "$453.3M",
+ "1993",
+ "Consumer Durables",
+ "Consumer Specialties",
+ "http://www.nasdaq.com/symbol/cent"
+ ],
+ [
+ "CENTA",
+ "Central Garden & Pet Company",
+ "9.72",
+ "$485.25M",
+ "n/a",
+ "Consumer Durables",
+ "Consumer Specialties",
+ "http://www.nasdaq.com/symbol/centa"
+ ],
+ [
+ "CENX",
+ "Century Aluminum Company",
+ "22.16",
+ "$1.97B",
+ "1996",
+ "Basic Industries",
+ "Aluminum",
+ "http://www.nasdaq.com/symbol/cenx"
+ ],
+ [
+ "CERE",
+ "Ceres, Inc.",
+ "0.373",
+ "$18M",
+ "2012",
+ "Consumer Non-Durables",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/cere"
+ ],
+ [
+ "CERN",
+ "Cerner Corporation",
+ "72.075",
+ "$24.69B",
+ "1986",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/cern"
+ ],
+ [
+ "CERS",
+ "Cerus Corporation",
+ "5.5",
+ "$430.48M",
+ "1997",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/cers"
+ ],
+ [
+ "CERU",
+ "Cerulean Pharma Inc.",
+ "6.63",
+ "$133.43M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ceru"
+ ],
+ [
+ "CETV",
+ "Central European Media Enterprises Ltd.",
+ "2.73",
+ "$369.47M",
+ "1994",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/cetv"
+ ],
+ [
+ "CEVA",
+ "CEVA, Inc.",
+ "19.2",
+ "$387.68M",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/ceva"
+ ],
+ [
+ "CFA",
+ "Compass EMP US 500 Volatility Weighted Index ETF",
+ "37.636",
+ "$7.53M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cfa"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_5.json b/packages/flutter/example/stocks/data/stock_data_5.json
new file mode 100644
index 0000000..9ad8117
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_5.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "CFBK",
+ "Central Federal Corporation",
+ "1.3",
+ "$20.57M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/cfbk"
+ ],
+ [
+ "CFFI",
+ "C&F Financial Corporation",
+ "36.14",
+ "$123.03M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cffi"
+ ],
+ [
+ "CFFN",
+ "Capitol Federal Financial, Inc.",
+ "12.58",
+ "$1.77B",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/cffn"
+ ],
+ [
+ "CFGE",
+ "Calamos Focus Growth ETF",
+ "10.8499",
+ "$28.21M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cfge"
+ ],
+ [
+ "CFNB",
+ "California First National Bancorp",
+ "14.16",
+ "$148.11M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cfnb"
+ ],
+ [
+ "CFNL",
+ "Cardinal Financial Corporation",
+ "19.35",
+ "$619.78M",
+ "1998",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cfnl"
+ ],
+ [
+ "CFO",
+ "Compass EMP US 500 Enhanced Volatility Weighted Index ETF",
+ "37.65",
+ "$26.36M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cfo"
+ ],
+ [
+ "CFRX",
+ "ContraFect Corporation",
+ "4.17",
+ "$84.31M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cfrx"
+ ],
+ [
+ "CFRXW",
+ "ContraFect Corporation",
+ "1.2501",
+ "n/a",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cfrxw"
+ ],
+ [
+ "CFRXZ",
+ "ContraFect Corporation",
+ "0.6072",
+ "n/a",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cfrxz"
+ ],
+ [
+ "CG",
+ "The Carlyle Group L.P.",
+ "27.04",
+ "$8.6B",
+ "2012",
+ "Finance",
+ "Investment Managers",
+ "http://www.nasdaq.com/symbol/cg"
+ ],
+ [
+ "CGEN",
+ "Compugen Ltd.",
+ "8.53",
+ "$427.27M",
+ "2000",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/cgen"
+ ],
+ [
+ "CGIX",
+ "Cancer Genetics, Inc.",
+ "8.95",
+ "$87.03M",
+ "n/a",
+ "Health Care",
+ "Medical Specialities",
+ "http://www.nasdaq.com/symbol/cgix"
+ ],
+ [
+ "CGNX",
+ "Cognex Corporation",
+ "42.62",
+ "$3.69B",
+ "1989",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/cgnx"
+ ],
+ [
+ "CGO",
+ "Calamos Global Total Return Fund",
+ "13.48",
+ "$112.6M",
+ "2005",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cgo"
+ ],
+ [
+ "CHCI",
+ "Comstock Holding Companies, Inc.",
+ "1.02",
+ "$22.04M",
+ "2004",
+ "Capital Goods",
+ "Homebuilding",
+ "http://www.nasdaq.com/symbol/chci"
+ ],
+ [
+ "CHCO",
+ "City Holding Company",
+ "46.14",
+ "$702.14M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/chco"
+ ],
+ [
+ "CHDN",
+ "Churchill Downs, Incorporated",
+ "104",
+ "$1.8B",
+ "n/a",
+ "Consumer Services",
+ "Services-Misc. Amusement & Recreation",
+ "http://www.nasdaq.com/symbol/chdn"
+ ],
+ [
+ "CHEF",
+ "The Chefs' Warehouse, Inc.",
+ "23.39",
+ "$586.1M",
+ "2011",
+ "Consumer Non-Durables",
+ "Food Distributors",
+ "http://www.nasdaq.com/symbol/chef"
+ ],
+ [
+ "CHEKU",
+ "Check-Cap Ltd.",
+ "6.1",
+ "n/a",
+ "2015",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cheku"
+ ],
+ [
+ "CHEV",
+ "Cheviot Financial Corp",
+ "14.4",
+ "$96.59M",
+ "2004",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/chev"
+ ],
+ [
+ "CHFC",
+ "Chemical Financial Corporation",
+ "30.09",
+ "$985.83M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/chfc"
+ ],
+ [
+ "CHFN",
+ "Charter Financial Corp.",
+ "11.53",
+ "$194.43M",
+ "2010",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/chfn"
+ ],
+ [
+ "CHI",
+ "Calamos Convertible Opportunities and Income Fund",
+ "13.3",
+ "$910.47M",
+ "2002",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/chi"
+ ],
+ [
+ "CHKE",
+ "Cherokee Inc.",
+ "18.36",
+ "$154.83M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/chke"
+ ],
+ [
+ "CHKP",
+ "Check Point Software Technologies Ltd.",
+ "82.48",
+ "$15.74B",
+ "1996",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/chkp"
+ ],
+ [
+ "CHLN",
+ "China Housing & Land Development, Inc.",
+ "0.3401",
+ "$11.84M",
+ "n/a",
+ "Basic Industries",
+ "Homebuilding",
+ "http://www.nasdaq.com/symbol/chln"
+ ],
+ [
+ "CHMG",
+ "Chemung Financial Corp",
+ "27.1199",
+ "$125.26M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/chmg"
+ ],
+ [
+ "CHNR",
+ "China Natural Resources, Inc.",
+ "2.1001",
+ "$52.32M",
+ "n/a",
+ "Basic Industries",
+ "Precious Metals",
+ "http://www.nasdaq.com/symbol/chnr"
+ ],
+ [
+ "CHOP",
+ "China Gerui Advanced Materials Group Limited",
+ "0.85",
+ "$5.05M",
+ "n/a",
+ "Capital Goods",
+ "Steel/Iron Ore",
+ "http://www.nasdaq.com/symbol/chop"
+ ],
+ [
+ "CHRS",
+ "Coherus BioSciences, Inc.",
+ "27.45",
+ "$912.93M",
+ "2014",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/chrs"
+ ],
+ [
+ "CHRW",
+ "C.H. Robinson Worldwide, Inc.",
+ "72.5",
+ "$10.61B",
+ "1997",
+ "Transportation",
+ "Oil Refining/Marketing",
+ "http://www.nasdaq.com/symbol/chrw"
+ ],
+ [
+ "CHSCL",
+ "CHS Inc",
+ "26.6368",
+ "n/a",
+ "n/a",
+ "Consumer Services",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/chscl"
+ ],
+ [
+ "CHSCM",
+ "CHS Inc",
+ "25.46",
+ "$483.74M",
+ "n/a",
+ "Consumer Services",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/chscm"
+ ],
+ [
+ "CHSCN",
+ "CHS Inc",
+ "26.6697",
+ "$448.05M",
+ "n/a",
+ "Consumer Services",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/chscn"
+ ],
+ [
+ "CHSCO",
+ "CHS Inc",
+ "28.63",
+ "$324.07M",
+ "n/a",
+ "Consumer Services",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/chsco"
+ ],
+ [
+ "CHSCP",
+ "CHS Inc",
+ "31",
+ "$224.2M",
+ "n/a",
+ "Consumer Services",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/chscp"
+ ],
+ [
+ "CHTR",
+ "Charter Communications, Inc.",
+ "175.89",
+ "$19.7B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/chtr"
+ ],
+ [
+ "CHUY",
+ "Chuy's Holdings, Inc.",
+ "23.35",
+ "$383.9M",
+ "2012",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/chuy"
+ ],
+ [
+ "CHW",
+ "Calamos Global Dynamic Income Fund",
+ "8.99",
+ "$530.47M",
+ "2007",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/chw"
+ ],
+ [
+ "CHXF",
+ "WisdomTree China Dividend ex-Financials Fund",
+ "53.272",
+ "$18.65M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/chxf"
+ ],
+ [
+ "CHY",
+ "Calamos Convertible and High Income Fund",
+ "14.63",
+ "$1.06B",
+ "2003",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/chy"
+ ],
+ [
+ "CHYR",
+ "ChyronHego Corporation",
+ "2.8116",
+ "$113.54M",
+ "n/a",
+ "Consumer Services",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/chyr"
+ ],
+ [
+ "CIDM",
+ "Cinedigm Corp",
+ "1.56",
+ "$120.05M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cidm"
+ ],
+ [
+ "CIFC",
+ "CIFC Corp.",
+ "7.82",
+ "$196.65M",
+ "n/a",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/cifc"
+ ],
+ [
+ "CINF",
+ "Cincinnati Financial Corporation",
+ "52.58",
+ "$8.6B",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/cinf"
+ ],
+ [
+ "CISAW",
+ "CIS Acquisition Ltd.",
+ "0.34",
+ "n/a",
+ "2013",
+ "Basic Industries",
+ "Major Chemicals",
+ "http://www.nasdaq.com/symbol/cisaw"
+ ],
+ [
+ "CISG",
+ "CNinsure Inc.",
+ "7.83",
+ "$391.05M",
+ "2007",
+ "Finance",
+ "Specialty Insurers",
+ "http://www.nasdaq.com/symbol/cisg"
+ ],
+ [
+ "CIZ",
+ "Compass EMP Developed 500 Enhanced Volatility Weighted Index E",
+ "35.89",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/ciz"
+ ],
+ [
+ "CIZN",
+ "Citizens Holding Company",
+ "18.94",
+ "$92.38M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cizn"
+ ],
+ [
+ "CJJD",
+ "China Jo-Jo Drugstores, Inc.",
+ "2.7",
+ "$41.54M",
+ "n/a",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/cjjd"
+ ],
+ [
+ "CKEC",
+ "Carmike Cinemas, Inc.",
+ "31.52",
+ "$769.68M",
+ "n/a",
+ "Consumer Services",
+ "Movies/Entertainment",
+ "http://www.nasdaq.com/symbol/ckec"
+ ],
+ [
+ "CKSW",
+ "ClickSoftware Technologies Ltd.",
+ "8.24",
+ "$267.76M",
+ "2000",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/cksw"
+ ],
+ [
+ "CLAC",
+ "Capitol Acquisition Corp. II",
+ "9.88",
+ "$247M",
+ "2013",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/clac"
+ ],
+ [
+ "CLACU",
+ "Capitol Acquisition Corp. II",
+ "10",
+ "$250M",
+ "2013",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/clacu"
+ ],
+ [
+ "CLACW",
+ "Capitol Acquisition Corp. II",
+ "0.3",
+ "n/a",
+ "2013",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/clacw"
+ ],
+ [
+ "CLBH",
+ "Carolina Bank Holdings Inc.",
+ "9.57",
+ "$32.87M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/clbh"
+ ],
+ [
+ "CLCT",
+ "Collectors Universe, Inc.",
+ "23.09",
+ "$205.13M",
+ "1999",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/clct"
+ ],
+ [
+ "CLDN",
+ "Celladon Corporation",
+ "16.3",
+ "$379.87M",
+ "2014",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/cldn"
+ ],
+ [
+ "CLDX",
+ "Celldex Therapeutics, Inc.",
+ "21.21",
+ "$1.9B",
+ "n/a",
+ "Health Care",
+ "Biotechnology: In Vitro & In Vivo Diagnostic Substances",
+ "http://www.nasdaq.com/symbol/cldx"
+ ],
+ [
+ "CLFD",
+ "Clearfield, Inc.",
+ "13.48",
+ "$184.51M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/clfd"
+ ],
+ [
+ "CLIR",
+ "ClearSign Combustion Corporation",
+ "6.79",
+ "$86.04M",
+ "2012",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/clir"
+ ],
+ [
+ "CLMS",
+ "Calamos Asset Management, Inc.",
+ "13.51",
+ "$277.37M",
+ "2004",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/clms"
+ ],
+ [
+ "CLMT",
+ "Calumet Specialty Products Partners, L.P.",
+ "26.45",
+ "$1.84B",
+ "2006",
+ "Energy",
+ "Integrated oil Companies",
+ "http://www.nasdaq.com/symbol/clmt"
+ ],
+ [
+ "CLNE",
+ "Clean Energy Fuels Corp.",
+ "4.92",
+ "$443.07M",
+ "2007",
+ "Public Utilities",
+ "Natural Gas Distribution",
+ "http://www.nasdaq.com/symbol/clne"
+ ],
+ [
+ "CLNT",
+ "Cleantech Solutions International, Inc.",
+ "3.23",
+ "$12.47M",
+ "n/a",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/clnt"
+ ],
+ [
+ "CLRB",
+ "Cellectar Biosciences, Inc.",
+ "2.86",
+ "$21.63M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/clrb"
+ ],
+ [
+ "CLRBW",
+ "Cellectar Biosciences, Inc.",
+ "0.56",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/clrbw"
+ ],
+ [
+ "CLRO",
+ "ClearOne, Inc.",
+ "10.28",
+ "$93.99M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/clro"
+ ],
+ [
+ "CLRX",
+ "CollabRx, Inc.",
+ "1.2",
+ "$3.81M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/clrx"
+ ],
+ [
+ "CLSN",
+ "Celsion Corporation",
+ "3.15",
+ "$62.93M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/clsn"
+ ],
+ [
+ "CLTX",
+ "Celsus Therapeutics Plc",
+ "1.09",
+ "$6.06M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cltx"
+ ],
+ [
+ "CLUB",
+ "Town Sports International Holdings, Inc.",
+ "7.01",
+ "$170.32M",
+ "2006",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/club"
+ ],
+ [
+ "CLVS",
+ "Clovis Oncology, Inc.",
+ "73.8",
+ "$2.51B",
+ "2011",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/clvs"
+ ],
+ [
+ "CLWT",
+ "Euro Tech Holdings Company Limited",
+ "2.6",
+ "$5.8M",
+ "1997",
+ "Consumer Durables",
+ "Diversified Electronic Products",
+ "http://www.nasdaq.com/symbol/clwt"
+ ],
+ [
+ "CMCO",
+ "Columbus McKinnon Corporation",
+ "25.71",
+ "$513.63M",
+ "1996",
+ "Capital Goods",
+ "Construction/Ag Equipment/Trucks",
+ "http://www.nasdaq.com/symbol/cmco"
+ ],
+ [
+ "CMCSA",
+ "Comcast Corporation",
+ "58.5",
+ "$151.82B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/cmcsa"
+ ],
+ [
+ "CMCSK",
+ "Comcast Corporation",
+ "58.12",
+ "$150.83B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/cmcsk"
+ ],
+ [
+ "CMCT",
+ "CIM Commercial Trust Corporation",
+ "16.98",
+ "$1.66B",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/cmct"
+ ],
+ [
+ "CME",
+ "CME Group Inc.",
+ "94.245",
+ "$31.75B",
+ "2002",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/cme"
+ ],
+ [
+ "CMFN",
+ "CM Finance Inc",
+ "13.71",
+ "$187.37M",
+ "2014",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cmfn"
+ ],
+ [
+ "CMGE",
+ "China Mobile Games and Entertainment Group Limited",
+ "18.39",
+ "$575.13M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/cmge"
+ ],
+ [
+ "CMLS",
+ "Cumulus Media Inc.",
+ "3.91",
+ "$907.9M",
+ "1998",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/cmls"
+ ],
+ [
+ "CMPR",
+ "Cimpress N.V",
+ "82.93",
+ "$2.7B",
+ "n/a",
+ "Miscellaneous",
+ "Publishing",
+ "http://www.nasdaq.com/symbol/cmpr"
+ ],
+ [
+ "CMRX",
+ "Chimerix, Inc.",
+ "41.75",
+ "$1.7B",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cmrx"
+ ],
+ [
+ "CMSB",
+ "CMS Bancorp, Inc.",
+ "13.03",
+ "$24.27M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/cmsb"
+ ],
+ [
+ "CMTL",
+ "Comtech Telecommunications Corp.",
+ "35.65",
+ "$578.07M",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/cmtl"
+ ],
+ [
+ "CNAT",
+ "Conatus Pharmaceuticals Inc.",
+ "6.32",
+ "$99.16M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cnat"
+ ],
+ [
+ "CNBKA",
+ "Century Bancorp, Inc.",
+ "38.43",
+ "$213.97M",
+ "1987",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cnbka"
+ ],
+ [
+ "CNCE",
+ "Concert Pharmaceuticals, Inc.",
+ "14.51",
+ "$263.88M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cnce"
+ ],
+ [
+ "CNDO",
+ "Coronado Biosciences, Inc.",
+ "2.41",
+ "$106.79M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cndo"
+ ],
+ [
+ "CNET",
+ "ChinaNet Online Holdings, Inc.",
+ "1.59",
+ "$45.92M",
+ "n/a",
+ "Technology",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/cnet"
+ ],
+ [
+ "CNIT",
+ "China Information Technology, Inc.",
+ "3.3201",
+ "$99.52M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/cnit"
+ ],
+ [
+ "CNLM",
+ "CB Pharma Acquisition Corp.",
+ "9.75",
+ "$51.53M",
+ "2015",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cnlm"
+ ],
+ [
+ "CNLMR",
+ "CB Pharma Acquisition Corp.",
+ "0.28",
+ "n/a",
+ "2015",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cnlmr"
+ ],
+ [
+ "CNLMU",
+ "CB Pharma Acquisition Corp.",
+ "10.1765",
+ "n/a",
+ "2014",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cnlmu"
+ ],
+ [
+ "CNLMW",
+ "CB Pharma Acquisition Corp.",
+ "0.19",
+ "n/a",
+ "2015",
+ "Finance",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cnlmw"
+ ],
+ [
+ "CNMD",
+ "CONMED Corporation",
+ "51.06",
+ "$1.41B",
+ "1987",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/cnmd"
+ ],
+ [
+ "CNOB",
+ "ConnectOne Bancorp, Inc.",
+ "18.46",
+ "$547.62M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cnob"
+ ],
+ [
+ "CNSI",
+ "Comverse Inc.",
+ "18.47",
+ "$404.69M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cnsi"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_6.json b/packages/flutter/example/stocks/data/stock_data_6.json
new file mode 100644
index 0000000..215ca7e
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_6.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "CNSL",
+ "Consolidated Communications Holdings, Inc.",
+ "23.94",
+ "$1.21B",
+ "2005",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/cnsl"
+ ],
+ [
+ "CNTF",
+ "China TechFaith Wireless Communication Technology Limited",
+ "1.02",
+ "$53.99M",
+ "2005",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/cntf"
+ ],
+ [
+ "CNTY",
+ "Century Casinos, Inc.",
+ "6.09",
+ "$148.48M",
+ "n/a",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/cnty"
+ ],
+ [
+ "CNV",
+ "Cnova N.V.",
+ "6.23",
+ "$2.73B",
+ "2014",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/cnv"
+ ],
+ [
+ "CNXR",
+ "Connecture, Inc.",
+ "9",
+ "$195.13M",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/cnxr"
+ ],
+ [
+ "CNYD",
+ "China Yida Holding, Co.",
+ "2.2101",
+ "$8.65M",
+ "n/a",
+ "Consumer Services",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/cnyd"
+ ],
+ [
+ "COB",
+ "CommunityOne Bancorp",
+ "10.6",
+ "$256.38M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cob"
+ ],
+ [
+ "COBK",
+ "Colonial Financial Services, Inc.",
+ "13.26",
+ "$51.19M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/cobk"
+ ],
+ [
+ "COBZ",
+ "CoBiz Financial Inc.",
+ "11.4",
+ "$464.91M",
+ "1998",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cobz"
+ ],
+ [
+ "COHR",
+ "Coherent, Inc.",
+ "64.57",
+ "$1.6B",
+ "n/a",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/cohr"
+ ],
+ [
+ "COHU",
+ "Cohu, Inc.",
+ "11.06",
+ "$282.41M",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/cohu"
+ ],
+ [
+ "COKE",
+ "Coca-Cola Bottling Co. Consolidated",
+ "102.24",
+ "$947.9M",
+ "1972",
+ "Consumer Non-Durables",
+ "Beverages (Production/Distribution)",
+ "http://www.nasdaq.com/symbol/coke"
+ ],
+ [
+ "COLB",
+ "Columbia Banking System, Inc.",
+ "28.18",
+ "$1.5B",
+ "1992",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/colb"
+ ],
+ [
+ "COLM",
+ "Columbia Sportswear Company",
+ "55.9",
+ "$3.9B",
+ "1998",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/colm"
+ ],
+ [
+ "COMM",
+ "CommScope Holding Company, Inc.",
+ "31.1",
+ "$5.84B",
+ "2013",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/comm"
+ ],
+ [
+ "COMT",
+ "iShares Commodities Select Strategy ETF",
+ "40.93",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/comt"
+ ],
+ [
+ "CONE",
+ "CyrusOne Inc",
+ "30.08",
+ "$1.16B",
+ "2013",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/cone"
+ ],
+ [
+ "CONN",
+ "Conn's, Inc.",
+ "25.6",
+ "$929.21M",
+ "2003",
+ "Consumer Services",
+ "Consumer Electronics/Video Chains",
+ "http://www.nasdaq.com/symbol/conn"
+ ],
+ [
+ "COOL",
+ "Majesco Entertainment Company",
+ "1.14",
+ "$8.06M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/cool"
+ ],
+ [
+ "CORE",
+ "Core-Mark Holding Company, Inc.",
+ "69.35",
+ "$1.6B",
+ "n/a",
+ "Consumer Non-Durables",
+ "Food Distributors",
+ "http://www.nasdaq.com/symbol/core"
+ ],
+ [
+ "CORI",
+ "Corium International, Inc.",
+ "7.03",
+ "$127.04M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cori"
+ ],
+ [
+ "CORT",
+ "Corcept Therapeutics Incorporated",
+ "3.37",
+ "$341.01M",
+ "1982",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cort"
+ ],
+ [
+ "COSI",
+ "Cosi, Inc.",
+ "2.59",
+ "$103.97M",
+ "2002",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/cosi"
+ ],
+ [
+ "COST",
+ "Costco Wholesale Corporation",
+ "147.535",
+ "$64.99B",
+ "n/a",
+ "Consumer Services",
+ "Department/Specialty Retail Stores",
+ "http://www.nasdaq.com/symbol/cost"
+ ],
+ [
+ "COVS",
+ "Covisint Corporation",
+ "2.55",
+ "$99.48M",
+ "2013",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/covs"
+ ],
+ [
+ "COWN",
+ "Cowen Group, Inc.",
+ "4.74",
+ "$538.63M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/cown"
+ ],
+ [
+ "COWNL",
+ "Cowen Group, Inc.",
+ "26.438",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/cownl"
+ ],
+ [
+ "CPAH",
+ "CounterPath Corporation",
+ "0.4999",
+ "$21.21M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/cpah"
+ ],
+ [
+ "CPGI",
+ "China Shengda Packaging Group, Inc.",
+ "1.01",
+ "$39.18M",
+ "2010",
+ "Consumer Durables",
+ "Containers/Packaging",
+ "http://www.nasdaq.com/symbol/cpgi"
+ ],
+ [
+ "CPHC",
+ "Canterbury Park Holding Corporation",
+ "10.4101",
+ "$43.74M",
+ "n/a",
+ "Consumer Services",
+ "Services-Misc. Amusement & Recreation",
+ "http://www.nasdaq.com/symbol/cphc"
+ ],
+ [
+ "CPHD",
+ "CEPHEID",
+ "58.59",
+ "$4.13B",
+ "2000",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/cphd"
+ ],
+ [
+ "CPHR",
+ "Cipher Pharmaceuticals Inc.",
+ "13.01",
+ "$336.84M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cphr"
+ ],
+ [
+ "CPIX",
+ "Cumberland Pharmaceuticals Inc.",
+ "5.87",
+ "$101.89M",
+ "2009",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cpix"
+ ],
+ [
+ "CPLA",
+ "Capella Education Company",
+ "65.37",
+ "$798.48M",
+ "2006",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/cpla"
+ ],
+ [
+ "CPLP",
+ "Capital Product Partners L.P.",
+ "9.3",
+ "$988.04M",
+ "2007",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/cplp"
+ ],
+ [
+ "CPRT",
+ "Copart, Inc.",
+ "38",
+ "$4.8B",
+ "1994",
+ "Consumer Durables",
+ "Automotive Aftermarket",
+ "http://www.nasdaq.com/symbol/cprt"
+ ],
+ [
+ "CPRX",
+ "Catalyst Pharmaceutical Partners, Inc.",
+ "3.4",
+ "$274.1M",
+ "2006",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cprx"
+ ],
+ [
+ "CPSH",
+ "CPS Technologies Corp.",
+ "3.04",
+ "$39.95M",
+ "n/a",
+ "Capital Goods",
+ "Building Materials",
+ "http://www.nasdaq.com/symbol/cpsh"
+ ],
+ [
+ "CPSI",
+ "Computer Programs and Systems, Inc.",
+ "52.63",
+ "$589.92M",
+ "2002",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/cpsi"
+ ],
+ [
+ "CPSS",
+ "Consumer Portfolio Services, Inc.",
+ "7.04",
+ "$178.61M",
+ "1992",
+ "Finance",
+ "Finance: Consumer Services",
+ "http://www.nasdaq.com/symbol/cpss"
+ ],
+ [
+ "CPST",
+ "Capstone Turbine Corporation",
+ "0.7009",
+ "$231.51M",
+ "2000",
+ "Energy",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/cpst"
+ ],
+ [
+ "CPTA",
+ "Capitala Finance Corp.",
+ "18.64",
+ "$241.84M",
+ "2013",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cpta"
+ ],
+ [
+ "CPXX",
+ "Celator Pharmaceuticals Inc.",
+ "2.9",
+ "$97.68M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cpxx"
+ ],
+ [
+ "CRAI",
+ "CRA International,Inc.",
+ "31.82",
+ "$303.23M",
+ "1998",
+ "Miscellaneous",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/crai"
+ ],
+ [
+ "CRAY",
+ "Cray Inc",
+ "34.21",
+ "$1.4B",
+ "n/a",
+ "Technology",
+ "Computer Manufacturing",
+ "http://www.nasdaq.com/symbol/cray"
+ ],
+ [
+ "CRDC",
+ "Cardica, Inc.",
+ "0.59",
+ "$52.48M",
+ "2006",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/crdc"
+ ],
+ [
+ "CRDS",
+ "Crossroads Systems, Inc.",
+ "2.45",
+ "$39.28M",
+ "1999",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/crds"
+ ],
+ [
+ "CRDT",
+ "WisdomTree Strategic Corporate Bond Fund",
+ "75.29",
+ "$7.53M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/crdt"
+ ],
+ [
+ "CREE",
+ "Cree, Inc.",
+ "39.185",
+ "$4.37B",
+ "1993",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/cree"
+ ],
+ [
+ "CREG",
+ "China Recycling Energy Corporation",
+ "0.7198",
+ "$59.75M",
+ "n/a",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/creg"
+ ],
+ [
+ "CRESW",
+ "Cresud S.A.C.I.F. y A.",
+ "0.008",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/cresw"
+ ],
+ [
+ "CRESY",
+ "Cresud S.A.C.I.F. y A.",
+ "11.09",
+ "$6.42M",
+ "1997",
+ "Finance",
+ "Real Estate",
+ "http://www.nasdaq.com/symbol/cresy"
+ ],
+ [
+ "CRIS",
+ "Curis, Inc.",
+ "3.4",
+ "$292.42M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/cris"
+ ],
+ [
+ "CRME",
+ "Cardiome Pharma Corporation",
+ "9.94",
+ "$164.91M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/crme"
+ ],
+ [
+ "CRMT",
+ "America's Car-Mart, Inc.",
+ "53.63",
+ "$462.44M",
+ "n/a",
+ "Consumer Durables",
+ "Automotive Aftermarket",
+ "http://www.nasdaq.com/symbol/crmt"
+ ],
+ [
+ "CRNT",
+ "Ceragon Networks Ltd.",
+ "1.2",
+ "$96.73M",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/crnt"
+ ],
+ [
+ "CROX",
+ "Crocs, Inc.",
+ "10.75",
+ "$886.84M",
+ "2006",
+ "Consumer Non-Durables",
+ "Shoe Manufacturing",
+ "http://www.nasdaq.com/symbol/crox"
+ ],
+ [
+ "CRRC",
+ "Courier Corporation",
+ "23.51",
+ "$270.94M",
+ "n/a",
+ "Consumer Services",
+ "Publishing",
+ "http://www.nasdaq.com/symbol/crrc"
+ ],
+ [
+ "CRRS",
+ "Corporate Resource Services, Inc.",
+ "0.22",
+ "$34.76M",
+ "n/a",
+ "Technology",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/crrs"
+ ],
+ [
+ "CRTN",
+ "Cartesian, Inc.",
+ "3.89",
+ "$34.26M",
+ "n/a",
+ "Consumer Services",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/crtn"
+ ],
+ [
+ "CRTO",
+ "Criteo S.A.",
+ "44.63",
+ "$2.64B",
+ "2013",
+ "Technology",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/crto"
+ ],
+ [
+ "CRUS",
+ "Cirrus Logic, Inc.",
+ "29.82",
+ "$1.87B",
+ "1989",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/crus"
+ ],
+ [
+ "CRVL",
+ "CorVel Corp.",
+ "34.65",
+ "$706.54M",
+ "n/a",
+ "Finance",
+ "Specialty Insurers",
+ "http://www.nasdaq.com/symbol/crvl"
+ ],
+ [
+ "CRWN",
+ "Crown Media Holdings, Inc.",
+ "3.45",
+ "$1.24B",
+ "2000",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/crwn"
+ ],
+ [
+ "CRWS",
+ "Crown Crafts, Inc.",
+ "8.319",
+ "$83.72M",
+ "n/a",
+ "Basic Industries",
+ "Textiles",
+ "http://www.nasdaq.com/symbol/crws"
+ ],
+ [
+ "CRZO",
+ "Carrizo Oil & Gas, Inc.",
+ "52.26",
+ "$2.41B",
+ "1997",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/crzo"
+ ],
+ [
+ "CSBK",
+ "Clifton Bancorp Inc.",
+ "13.42",
+ "$364.38M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/csbk"
+ ],
+ [
+ "CSCD",
+ "Cascade Microtech, Inc.",
+ "13.43",
+ "$219.87M",
+ "2004",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/cscd"
+ ],
+ [
+ "CSCO",
+ "Cisco Systems, Inc.",
+ "29.61",
+ "$151.15B",
+ "1990",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/csco"
+ ],
+ [
+ "CSF",
+ "Compass EMP US Discovery 500 Enhanced Volatility Weighted Fund",
+ "38.39",
+ "$7.68M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/csf"
+ ],
+ [
+ "CSFL",
+ "CenterState Banks, Inc.",
+ "11.88",
+ "$537.18M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/csfl"
+ ],
+ [
+ "CSGP",
+ "CoStar Group, Inc.",
+ "191.24",
+ "$6.19B",
+ "1998",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/csgp"
+ ],
+ [
+ "CSGS",
+ "CSG Systems International, Inc.",
+ "30.41",
+ "$1.04B",
+ "1996",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/csgs"
+ ],
+ [
+ "CSII",
+ "Cardiovascular Systems, Inc.",
+ "35.31",
+ "$1.12B",
+ "1981",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/csii"
+ ],
+ [
+ "CSIQ",
+ "Canadian Solar Inc.",
+ "28.95",
+ "$1.57B",
+ "2006",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/csiq"
+ ],
+ [
+ "CSOD",
+ "Cornerstone OnDemand, Inc.",
+ "35.04",
+ "$1.88B",
+ "2011",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/csod"
+ ],
+ [
+ "CSPI",
+ "CSP Inc.",
+ "7.73",
+ "$28.26M",
+ "1982",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/cspi"
+ ],
+ [
+ "CSQ",
+ "Calamos Strategic Total Return Fund",
+ "11.37",
+ "$1.76B",
+ "2004",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/csq"
+ ],
+ [
+ "CSRE",
+ "CSR plc",
+ "53.46",
+ "$2.21B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/csre"
+ ],
+ [
+ "CSTE",
+ "CaesarStone Sdot-Yam Ltd.",
+ "64.16",
+ "$2.25B",
+ "2012",
+ "Capital Goods",
+ "Building Materials",
+ "http://www.nasdaq.com/symbol/cste"
+ ],
+ [
+ "CSUN",
+ "China Sunergy Co., Ltd.",
+ "1.83",
+ "$24.47M",
+ "2007",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/csun"
+ ],
+ [
+ "CSWC",
+ "Capital Southwest Corporation",
+ "48.93",
+ "$760.54M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cswc"
+ ],
+ [
+ "CTAS",
+ "Cintas Corporation",
+ "82.47",
+ "$9.68B",
+ "1983",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/ctas"
+ ],
+ [
+ "CTBI",
+ "Community Trust Bancorp, Inc.",
+ "32.49",
+ "$566.54M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ctbi"
+ ],
+ [
+ "CTCM",
+ "CTC Media, Inc.",
+ "4.04",
+ "$629.28M",
+ "2006",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/ctcm"
+ ],
+ [
+ "CTCT",
+ "Constant Contact, Inc.",
+ "41.91",
+ "$1.33B",
+ "2007",
+ "Technology",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/ctct"
+ ],
+ [
+ "CTG",
+ "Computer Task Group, Incorporated",
+ "8.27",
+ "$153.44M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/ctg"
+ ],
+ [
+ "CTHR",
+ "Charles & Colvard Ltd",
+ "1.5884",
+ "$32.34M",
+ "1997",
+ "Consumer Durables",
+ "Consumer Specialties",
+ "http://www.nasdaq.com/symbol/cthr"
+ ],
+ [
+ "CTIB",
+ "CTI Industries Corporation",
+ "3.9999",
+ "$13.2M",
+ "1997",
+ "Basic Industries",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/ctib"
+ ],
+ [
+ "CTIC",
+ "CTI BioPharma Corp.",
+ "2.28",
+ "$409.92M",
+ "1997",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ctic"
+ ],
+ [
+ "CTRE",
+ "CareTrust REIT, Inc.",
+ "13.15",
+ "$415.08M",
+ "n/a",
+ "Consumer Services",
+ "Real Estate Investment Trusts",
+ "http://www.nasdaq.com/symbol/ctre"
+ ],
+ [
+ "CTRL",
+ "Control4 Corporation",
+ "13.21",
+ "$315.47M",
+ "2013",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/ctrl"
+ ],
+ [
+ "CTRN",
+ "Citi Trends, Inc.",
+ "26.42",
+ "$411.58M",
+ "2005",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/ctrn"
+ ],
+ [
+ "CTRP",
+ "Ctrip.com International, Ltd.",
+ "46.95",
+ "$6.35B",
+ "2003",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/ctrp"
+ ],
+ [
+ "CTRX",
+ "Catamaran Corporation",
+ "52.69",
+ "$10.93B",
+ "n/a",
+ "Finance",
+ "Specialty Insurers",
+ "http://www.nasdaq.com/symbol/ctrx"
+ ],
+ [
+ "CTSH",
+ "Cognizant Technology Solutions Corporation",
+ "63.05",
+ "$38.39B",
+ "1998",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/ctsh"
+ ],
+ [
+ "CTSO",
+ "Cytosorbents Corporation",
+ "9.95",
+ "$244M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/ctso"
+ ],
+ [
+ "CTWS",
+ "Connecticut Water Service, Inc.",
+ "37.47",
+ "$416.39M",
+ "n/a",
+ "Public Utilities",
+ "Water Supply",
+ "http://www.nasdaq.com/symbol/ctws"
+ ],
+ [
+ "CTXS",
+ "Citrix Systems, Inc.",
+ "64.92",
+ "$10.38B",
+ "1995",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/ctxs"
+ ],
+ [
+ "CU",
+ "ISE Global Copper Index First Trust",
+ "17.57",
+ "$21.96M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cu"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_7.json b/packages/flutter/example/stocks/data/stock_data_7.json
new file mode 100644
index 0000000..0ac6c34
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_7.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "CUBA",
+ "The Herzfeld Caribbean Basin Fund, Inc.",
+ "8.94",
+ "$49.79M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/cuba"
+ ],
+ [
+ "CUI",
+ "CUI Global, Inc.",
+ "5.75",
+ "$119.27M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/cui"
+ ],
+ [
+ "CUNB",
+ "CU Bancorp (CA)",
+ "20.87",
+ "$234.33M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cunb"
+ ],
+ [
+ "CUTR",
+ "Cutera, Inc.",
+ "12.58",
+ "$176.62M",
+ "2004",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/cutr"
+ ],
+ [
+ "CVBF",
+ "CVB Financial Corporation",
+ "15.83",
+ "$1.68B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cvbf"
+ ],
+ [
+ "CVCO",
+ "Cavco Industries, Inc.",
+ "72.71",
+ "$644.15M",
+ "n/a",
+ "Basic Industries",
+ "Homebuilding",
+ "http://www.nasdaq.com/symbol/cvco"
+ ],
+ [
+ "CVCY",
+ "Central Valley Community Bancorp",
+ "10.77",
+ "$118.25M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cvcy"
+ ],
+ [
+ "CVGI",
+ "Commercial Vehicle Group, Inc.",
+ "5.97",
+ "$177.26M",
+ "2004",
+ "Capital Goods",
+ "Auto Parts:O.E.M.",
+ "http://www.nasdaq.com/symbol/cvgi"
+ ],
+ [
+ "CVGW",
+ "Calavo Growers, Inc.",
+ "42.78",
+ "$739.9M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Farming/Seeds/Milling",
+ "http://www.nasdaq.com/symbol/cvgw"
+ ],
+ [
+ "CVLT",
+ "CommVault Systems, Inc.",
+ "45",
+ "$2.02B",
+ "2006",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/cvlt"
+ ],
+ [
+ "CVLY",
+ "Codorus Valley Bancorp, Inc",
+ "20.2682",
+ "$117.65M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/cvly"
+ ],
+ [
+ "CVTI",
+ "Covenant Transportation Group, Inc.",
+ "29.65",
+ "$466.89M",
+ "1994",
+ "Transportation",
+ "Trucking Freight/Courier Services",
+ "http://www.nasdaq.com/symbol/cvti"
+ ],
+ [
+ "CVV",
+ "CVD Equipment Corporation",
+ "14.53",
+ "$89.22M",
+ "n/a",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/cvv"
+ ],
+ [
+ "CWAY",
+ "Coastway Bancorp, Inc.",
+ "11.06",
+ "$54.74M",
+ "2014",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/cway"
+ ],
+ [
+ "CWBC",
+ "Community West Bancshares",
+ "6.682",
+ "$54.81M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cwbc"
+ ],
+ [
+ "CWCO",
+ "Consolidated Water Co. Ltd.",
+ "10.6",
+ "$155.85M",
+ "n/a",
+ "Public Utilities",
+ "Water Supply",
+ "http://www.nasdaq.com/symbol/cwco"
+ ],
+ [
+ "CWST",
+ "Casella Waste Systems, Inc.",
+ "4.14",
+ "$167.81M",
+ "1997",
+ "Public Utilities",
+ "Environmental Services",
+ "http://www.nasdaq.com/symbol/cwst"
+ ],
+ [
+ "CXDC",
+ "China XD Plastics Company Limited",
+ "4.26",
+ "$211.3M",
+ "n/a",
+ "Capital Goods",
+ "Containers/Packaging",
+ "http://www.nasdaq.com/symbol/cxdc"
+ ],
+ [
+ "CY",
+ "Cypress Semiconductor Corporation",
+ "14.95",
+ "$2.47B",
+ "1986",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/cy"
+ ],
+ [
+ "CYAN",
+ "Cyanotech Corporation",
+ "8.25",
+ "$45.81M",
+ "n/a",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/cyan"
+ ],
+ [
+ "CYBE",
+ "CyberOptics Corporation",
+ "9.87",
+ "$65.5M",
+ "1987",
+ "Capital Goods",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/cybe"
+ ],
+ [
+ "CYBR",
+ "CyberArk Software Ltd.",
+ "70.35",
+ "$2.08B",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/cybr"
+ ],
+ [
+ "CYBX",
+ "Cyberonics, Inc.",
+ "58.3",
+ "$1.53B",
+ "1993",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/cybx"
+ ],
+ [
+ "CYCC",
+ "Cyclacel Pharmaceuticals, Inc.",
+ "0.79",
+ "$18.15M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cycc"
+ ],
+ [
+ "CYCCP",
+ "Cyclacel Pharmaceuticals, Inc.",
+ "7",
+ "$2.35M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cyccp"
+ ],
+ [
+ "CYHHZ",
+ "Community Health Systems, Inc.",
+ "0.025",
+ "n/a",
+ "n/a",
+ "Health Care",
+ "Hospital/Nursing Management",
+ "http://www.nasdaq.com/symbol/cyhhz"
+ ],
+ [
+ "CYNO",
+ "Cynosure, Inc.",
+ "30.58",
+ "$662M",
+ "2005",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/cyno"
+ ],
+ [
+ "CYOU",
+ "Changyou.com Limited",
+ "26.02",
+ "$1.37B",
+ "2009",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/cyou"
+ ],
+ [
+ "CYRN",
+ "CYREN Ltd.",
+ "3.17",
+ "$84.29M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/cyrn"
+ ],
+ [
+ "CYTK",
+ "Cytokinetics, Incorporated",
+ "7.94",
+ "$290.67M",
+ "2004",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/cytk"
+ ],
+ [
+ "CYTR",
+ "CytRx Corporation",
+ "3.18",
+ "$177.24M",
+ "1986",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/cytr"
+ ],
+ [
+ "CYTX",
+ "Cytori Therapeutics Inc",
+ "0.55",
+ "$50.85M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/cytx"
+ ],
+ [
+ "CZFC",
+ "Citizens First Corporation",
+ "12.327",
+ "$24.27M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/czfc"
+ ],
+ [
+ "CZNC",
+ "Citizens & Northern Corp",
+ "19.32",
+ "$237.49M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/cznc"
+ ],
+ [
+ "CZR",
+ "Caesars Entertainment Corporation",
+ "10.94",
+ "$1.58B",
+ "2012",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/czr"
+ ],
+ [
+ "CZWI",
+ "Citizens Community Bancorp, Inc.",
+ "9.18",
+ "$47.68M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/czwi"
+ ],
+ [
+ "DAEG",
+ "Daegis Inc",
+ "0.7415",
+ "$12.15M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/daeg"
+ ],
+ [
+ "DAIO",
+ "Data I/O Corporation",
+ "3.161",
+ "$24.85M",
+ "1981",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/daio"
+ ],
+ [
+ "DAKT",
+ "Daktronics, Inc.",
+ "12.68",
+ "$552.31M",
+ "1994",
+ "Consumer Durables",
+ "Miscellaneous manufacturing industries",
+ "http://www.nasdaq.com/symbol/dakt"
+ ],
+ [
+ "DARA",
+ "DARA Biosciences, Inc.",
+ "0.89",
+ "$17.44M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/dara"
+ ],
+ [
+ "DATE",
+ "Jiayuan.com International Ltd.",
+ "4.91",
+ "$160.49M",
+ "2011",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/date"
+ ],
+ [
+ "DAVE",
+ "Famous Dave's of America, Inc.",
+ "28.53",
+ "$203.81M",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/dave"
+ ],
+ [
+ "DAX",
+ "Recon Capital DAX Germany ETF",
+ "27.86",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/dax"
+ ],
+ [
+ "DBVT",
+ "DBV Technologies S.A.",
+ "23.34",
+ "$722.1M",
+ "2014",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/dbvt"
+ ],
+ [
+ "DCIX",
+ "Diana Containerships Inc.",
+ "2.22",
+ "$162.41M",
+ "n/a",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/dcix"
+ ],
+ [
+ "DCOM",
+ "Dime Community Bancshares, Inc.",
+ "15.7",
+ "$578.59M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/dcom"
+ ],
+ [
+ "DCTH",
+ "Delcath Systems, Inc.",
+ "1.09",
+ "$10.58M",
+ "2000",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/dcth"
+ ],
+ [
+ "DENN",
+ "Denny's Corporation",
+ "11.75",
+ "$995.54M",
+ "n/a",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/denn"
+ ],
+ [
+ "DEPO",
+ "Depomed, Inc.",
+ "20.02",
+ "$1.18B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/depo"
+ ],
+ [
+ "DERM",
+ "Dermira, Inc.",
+ "16",
+ "$393.6M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/derm"
+ ],
+ [
+ "DEST",
+ "Destination Maternity Corporation",
+ "16.41",
+ "$226.42M",
+ "n/a",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/dest"
+ ],
+ [
+ "DFRG",
+ "Del Frisco's Restaurant Group, Inc.",
+ "19.72",
+ "$461.79M",
+ "2012",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/dfrg"
+ ],
+ [
+ "DFVL",
+ "iPath US Treasury 5-year Bull ETN",
+ "62.98",
+ "$1.89M",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/dfvl"
+ ],
+ [
+ "DFVS",
+ "iPath US Treasury 5-year Bear Exchange Traded Note",
+ "34.32",
+ "$1.73M",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/dfvs"
+ ],
+ [
+ "DGAS",
+ "Delta Natural Gas Company, Inc.",
+ "20",
+ "$140.25M",
+ "1981",
+ "Public Utilities",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/dgas"
+ ],
+ [
+ "DGICA",
+ "Donegal Group, Inc.",
+ "15.81",
+ "$425.8M",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/dgica"
+ ],
+ [
+ "DGICB",
+ "Donegal Group, Inc.",
+ "27",
+ "$727.17M",
+ "1986",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/dgicb"
+ ],
+ [
+ "DGII",
+ "Digi International Inc.",
+ "10.2",
+ "$248.45M",
+ "1989",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/dgii"
+ ],
+ [
+ "DGLD",
+ "3X Inverse Gold ETN Velocityshares",
+ "72.22",
+ "$9.82M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/dgld"
+ ],
+ [
+ "DGLY",
+ "Digital Ally, Inc.",
+ "11.04",
+ "$33.24M",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/dgly"
+ ],
+ [
+ "DGRE",
+ "WisdomTree Emerging Markets Dividend Growth Fund",
+ "25.38",
+ "$15.23M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/dgre"
+ ],
+ [
+ "DGRS",
+ "WisdomTree U.S. SmallCap Dividend Growth Fund",
+ "29.69",
+ "$26.72M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/dgrs"
+ ],
+ [
+ "DGRW",
+ "WisdomTree US Dividend Growth Fund",
+ "32.01",
+ "$144.05M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/dgrw"
+ ],
+ [
+ "DHIL",
+ "Diamond Hill Investment Group, Inc.",
+ "139.5",
+ "$462.47M",
+ "n/a",
+ "Finance",
+ "Investment Managers",
+ "http://www.nasdaq.com/symbol/dhil"
+ ],
+ [
+ "DHRM",
+ "Dehaier Medical Systems Limited",
+ "2.65",
+ "$15.48M",
+ "2010",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/dhrm"
+ ],
+ [
+ "DIOD",
+ "Diodes Incorporated",
+ "28.15",
+ "$1.34B",
+ "n/a",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/diod"
+ ],
+ [
+ "DISCA",
+ "Discovery Communications, Inc.",
+ "30.93",
+ "$13.59B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/disca"
+ ],
+ [
+ "DISCB",
+ "Discovery Communications, Inc.",
+ "35",
+ "$15.37B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/discb"
+ ],
+ [
+ "DISCK",
+ "Discovery Communications, Inc.",
+ "29.505",
+ "$12.96B",
+ "n/a",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/disck"
+ ],
+ [
+ "DISH",
+ "DISH Network Corporation",
+ "78.31",
+ "$17.47B",
+ "1995",
+ "Consumer Services",
+ "Television Services",
+ "http://www.nasdaq.com/symbol/dish"
+ ],
+ [
+ "DJCO",
+ "Daily Journal Corp. (S.C.)",
+ "189.25",
+ "$261.31M",
+ "n/a",
+ "Consumer Services",
+ "Newspapers/Magazines",
+ "http://www.nasdaq.com/symbol/djco"
+ ],
+ [
+ "DLBL",
+ "iPath US Treasury Long Bond Bull ETN",
+ "78.1401",
+ "$4.4M",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/dlbl"
+ ],
+ [
+ "DLBS",
+ "iPath US Treasury Long Bond Bear ETN",
+ "21.46",
+ "$17.8M",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/dlbs"
+ ],
+ [
+ "DLHC",
+ "DLH Holdings Corp.",
+ "2.13",
+ "$20.51M",
+ "n/a",
+ "Technology",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/dlhc"
+ ],
+ [
+ "DLTR",
+ "Dollar Tree, Inc.",
+ "77.69",
+ "$15.98B",
+ "1995",
+ "Consumer Services",
+ "Department/Specialty Retail Stores",
+ "http://www.nasdaq.com/symbol/dltr"
+ ],
+ [
+ "DMLP",
+ "Dorchester Minerals, L.P.",
+ "23.98",
+ "$735.6M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/dmlp"
+ ],
+ [
+ "DMND",
+ "Diamond Foods, Inc.",
+ "26.15",
+ "$821.53M",
+ "2005",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/dmnd"
+ ],
+ [
+ "DMRC",
+ "Digimarc Corporation",
+ "27.5",
+ "$211.58M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/dmrc"
+ ],
+ [
+ "DNBF",
+ "DNB Financial Corp",
+ "22.5",
+ "$62.47M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/dnbf"
+ ],
+ [
+ "DNKN",
+ "Dunkin' Brands Group, Inc.",
+ "46.38",
+ "$4.53B",
+ "2011",
+ "Consumer Services",
+ "Restaurants",
+ "http://www.nasdaq.com/symbol/dnkn"
+ ],
+ [
+ "DORM",
+ "Dorman Products, Inc.",
+ "44.88",
+ "$1.6B",
+ "n/a",
+ "Capital Goods",
+ "Auto Parts:O.E.M.",
+ "http://www.nasdaq.com/symbol/dorm"
+ ],
+ [
+ "DOVR",
+ "Dover Saddlery, Inc.",
+ "4.71",
+ "$25.45M",
+ "2005",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/dovr"
+ ],
+ [
+ "DOX",
+ "Amdocs Limited",
+ "51.57",
+ "$8.01B",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/dox"
+ ],
+ [
+ "DPRX",
+ "Dipexium Pharmaceuticals, Inc.",
+ "13.63",
+ "$116.37M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/dprx"
+ ],
+ [
+ "DRAD",
+ "Digirad Corporation",
+ "4.37",
+ "$72.48M",
+ "2004",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/drad"
+ ],
+ [
+ "DRAM",
+ "Dataram Corporation",
+ "2.4",
+ "$6.22M",
+ "n/a",
+ "Technology",
+ "Electronic Components",
+ "http://www.nasdaq.com/symbol/dram"
+ ],
+ [
+ "DRNA",
+ "Dicerna Pharmaceuticals, Inc.",
+ "26.02",
+ "$462.46M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/drna"
+ ],
+ [
+ "DRRX",
+ "Durect Corporation",
+ "0.99",
+ "$112.54M",
+ "2000",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/drrx"
+ ],
+ [
+ "DRWI",
+ "DragonWave Inc",
+ "0.92",
+ "$69.26M",
+ "2009",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/drwi"
+ ],
+ [
+ "DRWIW",
+ "DragonWave Inc",
+ "0.0848",
+ "$675326",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/drwiw"
+ ],
+ [
+ "DRYS",
+ "DryShips Inc.",
+ "0.98",
+ "$671.36M",
+ "2005",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/drys"
+ ],
+ [
+ "DSCI",
+ "Derma Sciences, Inc.",
+ "8.38",
+ "$211.58M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/dsci"
+ ],
+ [
+ "DSCO",
+ "Discovery Laboratories, Inc.",
+ "1.52",
+ "$129.71M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/dsco"
+ ],
+ [
+ "DSGX",
+ "The Descartes Systems Group Inc.",
+ "15.27",
+ "$1.15B",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/dsgx"
+ ],
+ [
+ "DSKX",
+ "DS Healthcare Group, Inc.",
+ "0.7753",
+ "$12.52M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Package Goods/Cosmetics",
+ "http://www.nasdaq.com/symbol/dskx"
+ ],
+ [
+ "DSKY",
+ "iDreamSky Technology Limited",
+ "11.61",
+ "$491.37M",
+ "2014",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/dsky"
+ ],
+ [
+ "DSLV",
+ "VelocityShares 3x Inverse Silver ETN linked to S&P GSCI Silver",
+ "60",
+ "$34.02M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/dslv"
+ ],
+ [
+ "DSPG",
+ "DSP Group, Inc.",
+ "11.43",
+ "$247.03M",
+ "1994",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/dspg"
+ ],
+ [
+ "DSWL",
+ "Deswell Industries, Inc.",
+ "1.89",
+ "$30.35M",
+ "1995",
+ "Consumer Non-Durables",
+ "Plastic Products",
+ "http://www.nasdaq.com/symbol/dswl"
+ ],
+ [
+ "DTLK",
+ "Datalink Corporation",
+ "12.11",
+ "$278.95M",
+ "1999",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/dtlk"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_8.json b/packages/flutter/example/stocks/data/stock_data_8.json
new file mode 100644
index 0000000..dd47967
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_8.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "DTSI",
+ "DTS, Inc.",
+ "30.65",
+ "$526.75M",
+ "2003",
+ "Miscellaneous",
+ "Multi-Sector Companies",
+ "http://www.nasdaq.com/symbol/dtsi"
+ ],
+ [
+ "DTUL",
+ "iPath US Treasury 2-year Bull ETN",
+ "61.4",
+ "$4.39M",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/dtul"
+ ],
+ [
+ "DTUS",
+ "iPath US Treasury 2-year Bear ETN",
+ "34.81",
+ "$13.02M",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/dtus"
+ ],
+ [
+ "DTV",
+ "DIRECTV",
+ "87.26",
+ "$43.83B",
+ "n/a",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/dtv"
+ ],
+ [
+ "DTYL",
+ "iPath US Treasury 10-year Bull ETN",
+ "74.72",
+ "$5.38M",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/dtyl"
+ ],
+ [
+ "DTYS",
+ "iPath US Treasury 10-year Bear ETN",
+ "21.71",
+ "$68.19M",
+ "n/a",
+ "Finance",
+ "Commercial Banks",
+ "http://www.nasdaq.com/symbol/dtys"
+ ],
+ [
+ "DVAX",
+ "Dynavax Technologies Corporation",
+ "17.75",
+ "$46.67M",
+ "2004",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/dvax"
+ ],
+ [
+ "DVCR",
+ "Diversicare Healthcare Services Inc.",
+ "10.11",
+ "$62.24M",
+ "n/a",
+ "Health Care",
+ "Hospital/Nursing Management",
+ "http://www.nasdaq.com/symbol/dvcr"
+ ],
+ [
+ "DWA",
+ "Dreamworks Animation SKG, Inc.",
+ "20.35",
+ "$1.73B",
+ "2004",
+ "Consumer Services",
+ "Movies/Entertainment",
+ "http://www.nasdaq.com/symbol/dwa"
+ ],
+ [
+ "DWAT",
+ "Arrow DWA Tactical ETF",
+ "10.7499",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/dwat"
+ ],
+ [
+ "DWCH",
+ "Datawatch Corporation",
+ "6.78",
+ "$76.96M",
+ "1992",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/dwch"
+ ],
+ [
+ "DWSN",
+ "Dawson Geophysical Company",
+ "5.91",
+ "$43.34M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/dwsn"
+ ],
+ [
+ "DXCM",
+ "DexCom, Inc.",
+ "64.42",
+ "$4.93B",
+ "2005",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/dxcm"
+ ],
+ [
+ "DXGE",
+ "WisdomTree Germany Hedged Equity Fund",
+ "29.58",
+ "$13.31M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/dxge"
+ ],
+ [
+ "DXJS",
+ "WisdomTree Japan Hedged SmallCap Equity Fund",
+ "32.9199",
+ "$95.47M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/dxjs"
+ ],
+ [
+ "DXKW",
+ "WisdomTree Korea Hedged Equity Fund",
+ "21.54",
+ "$8.62M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/dxkw"
+ ],
+ [
+ "DXLG",
+ "Destination XL Group, Inc.",
+ "4.91",
+ "$248.85M",
+ "n/a",
+ "Consumer Services",
+ "Clothing/Shoe/Accessory Stores",
+ "http://www.nasdaq.com/symbol/dxlg"
+ ],
+ [
+ "DXM",
+ "Dex Media, Inc.",
+ "7.27",
+ "$128.16M",
+ "n/a",
+ "Consumer Services",
+ "Advertising",
+ "http://www.nasdaq.com/symbol/dxm"
+ ],
+ [
+ "DXPE",
+ "DXP Enterprises, Inc.",
+ "47.11",
+ "$681.49M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/dxpe"
+ ],
+ [
+ "DXPS",
+ "WisdomTree United Kingdom Hedged Equity Fund",
+ "26.78",
+ "$22.76M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/dxps"
+ ],
+ [
+ "DXYN",
+ "The Dixie Group, Inc.",
+ "9.02",
+ "$143.7M",
+ "n/a",
+ "Consumer Durables",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/dxyn"
+ ],
+ [
+ "DYAX",
+ "Dyax Corp.",
+ "15.95",
+ "$2.18B",
+ "2000",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/dyax"
+ ],
+ [
+ "DYNT",
+ "Dynatronics Corporation",
+ "3.85",
+ "$9.7M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/dynt"
+ ],
+ [
+ "DYSL",
+ "Dynasil Corporation of America",
+ "1.4",
+ "$22.96M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/dysl"
+ ],
+ [
+ "EA",
+ "Electronic Arts Inc.",
+ "57.67",
+ "$17.88B",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/ea"
+ ],
+ [
+ "EAC ",
+ "Erickson Incorporated",
+ "7.2",
+ "$99.45M",
+ "2012",
+ "Capital Goods",
+ "Aerospace",
+ "http://www.nasdaq.com/symbol/eac "
+ ],
+ [
+ "EARS",
+ "Auris Medical Holding AG",
+ "5.8",
+ "$167.94M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ears"
+ ],
+ [
+ "EBAY",
+ "eBay Inc.",
+ "58.02",
+ "$70.21B",
+ "1998",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/ebay"
+ ],
+ [
+ "EBIO",
+ "Eleven Biotherapeutics, Inc.",
+ "10.85",
+ "$176.74M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ebio"
+ ],
+ [
+ "EBIX",
+ "Ebix, Inc.",
+ "28.13",
+ "$1.03B",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/ebix"
+ ],
+ [
+ "EBMT",
+ "Eagle Bancorp Montana, Inc.",
+ "11.05",
+ "$42.72M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/ebmt"
+ ],
+ [
+ "EBSB",
+ "Meridian Bancorp, Inc.",
+ "12.41",
+ "$678.93M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ebsb"
+ ],
+ [
+ "EBTC",
+ "Enterprise Bancorp Inc",
+ "21.33",
+ "$216.82M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ebtc"
+ ],
+ [
+ "ECHO",
+ "Echo Global Logistics, Inc.",
+ "27.76",
+ "$659.22M",
+ "2009",
+ "Transportation",
+ "Oil Refining/Marketing",
+ "http://www.nasdaq.com/symbol/echo"
+ ],
+ [
+ "ECOL",
+ "US Ecology, Inc.",
+ "46.55",
+ "$1.01B",
+ "n/a",
+ "Public Utilities",
+ "Environmental Services",
+ "http://www.nasdaq.com/symbol/ecol"
+ ],
+ [
+ "ECPG",
+ "Encore Capital Group Inc",
+ "43.01",
+ "$1.11B",
+ "n/a",
+ "Finance",
+ "Finance Companies",
+ "http://www.nasdaq.com/symbol/ecpg"
+ ],
+ [
+ "ECTE",
+ "Echo Therapeutics, Inc.",
+ "2.89",
+ "$36.51M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/ecte"
+ ],
+ [
+ "ECYT",
+ "Endocyte, Inc.",
+ "5.69",
+ "$237.33M",
+ "2011",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/ecyt"
+ ],
+ [
+ "EDAP",
+ "EDAP TMS S.A.",
+ "3.52",
+ "$87.26M",
+ "1997",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/edap"
+ ],
+ [
+ "EDGW",
+ "Edgewater Technology, Inc.",
+ "7.23",
+ "$82.26M",
+ "n/a",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/edgw"
+ ],
+ [
+ "EDS",
+ "Exceed Company Ltd.",
+ "1.56",
+ "$51.7M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Shoe Manufacturing",
+ "http://www.nasdaq.com/symbol/eds"
+ ],
+ [
+ "EDUC",
+ "Educational Development Corporation",
+ "4.22",
+ "$16.97M",
+ "n/a",
+ "Consumer Durables",
+ "Consumer Specialties",
+ "http://www.nasdaq.com/symbol/educ"
+ ],
+ [
+ "EEFT",
+ "Euronet Worldwide, Inc.",
+ "54.33",
+ "$2.86B",
+ "1997",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/eeft"
+ ],
+ [
+ "EEI",
+ "Ecology and Environment, Inc.",
+ "10.26",
+ "$44M",
+ "1987",
+ "Consumer Services",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/eei"
+ ],
+ [
+ "EEMA",
+ "iShares MSCI Emerging Markets Asia Index",
+ "60.76",
+ "$91.14M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/eema"
+ ],
+ [
+ "EEME",
+ "iShares MSCI Emerging Markets EMEA Index Fund",
+ "45.11",
+ "$9.02M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/eeme"
+ ],
+ [
+ "EEML",
+ "iShares MSCI Emerging Markets Latin America ETF",
+ "35.52",
+ "$10.66M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/eeml"
+ ],
+ [
+ "EFII",
+ "Electronics for Imaging, Inc.",
+ "40",
+ "$1.88B",
+ "1992",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/efii"
+ ],
+ [
+ "EFOI",
+ "Energy Focus, Inc.",
+ "4.68",
+ "$44.09M",
+ "n/a",
+ "Consumer Durables",
+ "Building Products",
+ "http://www.nasdaq.com/symbol/efoi"
+ ],
+ [
+ "EFSC",
+ "Enterprise Financial Services Corporation",
+ "20.27",
+ "$401.04M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/efsc"
+ ],
+ [
+ "EFUT",
+ "eFuture Information Technology Inc.",
+ "4.02",
+ "$16.04M",
+ "n/a",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/efut"
+ ],
+ [
+ "EGAN",
+ "eGain Corporation",
+ "3.605",
+ "$96.2M",
+ "1999",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/egan"
+ ],
+ [
+ "EGBN",
+ "Eagle Bancorp, Inc.",
+ "36.37",
+ "$946.85M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/egbn"
+ ],
+ [
+ "EGHT",
+ "8x8 Inc",
+ "7.62",
+ "$684.79M",
+ "n/a",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/eght"
+ ],
+ [
+ "EGLE",
+ "Eagle Bulk Shipping Inc.",
+ "9.97",
+ "$379.31M",
+ "n/a",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/egle"
+ ],
+ [
+ "EGLT",
+ "Egalet Corporation",
+ "14.5",
+ "$250.61M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/eglt"
+ ],
+ [
+ "EGOV",
+ "NIC Inc.",
+ "17.05",
+ "$1.11B",
+ "1999",
+ "Consumer Services",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/egov"
+ ],
+ [
+ "EGRW",
+ "iShares MSCI Emerging Markets Growth ETF",
+ "55",
+ "$5.5M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/egrw"
+ ],
+ [
+ "EGRX",
+ "Eagle Pharmaceuticals, Inc.",
+ "33.68",
+ "$472.76M",
+ "2014",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/egrx"
+ ],
+ [
+ "EGT",
+ "Entertainment Gaming Asia Incorporated",
+ "0.5203",
+ "$15.66M",
+ "n/a",
+ "Consumer Durables",
+ "Miscellaneous manufacturing industries",
+ "http://www.nasdaq.com/symbol/egt"
+ ],
+ [
+ "EHTH",
+ "eHealth, Inc.",
+ "10.47",
+ "$186.55M",
+ "2006",
+ "Finance",
+ "Specialty Insurers",
+ "http://www.nasdaq.com/symbol/ehth"
+ ],
+ [
+ "EIGI",
+ "Endurance International Group Holdings, Inc.",
+ "19.89",
+ "$2.63B",
+ "2013",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/eigi"
+ ],
+ [
+ "ELGX",
+ "Endologix, Inc.",
+ "14.82",
+ "$992.77M",
+ "n/a",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/elgx"
+ ],
+ [
+ "ELNK",
+ "EarthLink Holdings Corp.",
+ "4.6",
+ "$470.79M",
+ "n/a",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/elnk"
+ ],
+ [
+ "ELON",
+ "Echelon Corporation",
+ "1.16",
+ "$50.99M",
+ "1998",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/elon"
+ ],
+ [
+ "ELOS",
+ "Syneron Medical Ltd.",
+ "11.1",
+ "$407.03M",
+ "2004",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/elos"
+ ],
+ [
+ "ELRC",
+ "Electro Rent Corporation",
+ "13.03",
+ "$314.09M",
+ "n/a",
+ "Technology",
+ "Diversified Commercial Services",
+ "http://www.nasdaq.com/symbol/elrc"
+ ],
+ [
+ "ELSE",
+ "Electro-Sensors, Inc.",
+ "4.031",
+ "$13.69M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/else"
+ ],
+ [
+ "ELTK",
+ "Eltek Ltd.",
+ "1.21",
+ "$12.27M",
+ "1997",
+ "Technology",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/eltk"
+ ],
+ [
+ "EMCB",
+ "WisdomTree Emerging Markets Corporate Bond",
+ "71.6399",
+ "$107.46M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/emcb"
+ ],
+ [
+ "EMCF",
+ "Emclaire Financial Corp",
+ "25.16",
+ "$44.59M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/emcf"
+ ],
+ [
+ "EMCG",
+ "WisdomTree Emerging Markets Consumer Growth Fund",
+ "25.5",
+ "$20.4M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/emcg"
+ ],
+ [
+ "EMCI",
+ "EMC Insurance Group Inc.",
+ "30",
+ "$406.39M",
+ "1982",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/emci"
+ ],
+ [
+ "EMDI",
+ "iShares MSCI Emerging Markets Consumer Discretionary Index",
+ "53.89",
+ "$5.39M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/emdi"
+ ],
+ [
+ "EMEY",
+ "iShares MSCI Emerging Markets Energy Sector Capped Index Fund",
+ "29.28",
+ "$1.46M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/emey"
+ ],
+ [
+ "EMIF",
+ "iShares S&P Emerging Markets Infrastructure Index Fund",
+ "32.71",
+ "$85.05M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/emif"
+ ],
+ [
+ "EMITF",
+ "Elbit Imaging Ltd.",
+ "1.75",
+ "$2.41M",
+ "n/a",
+ "Consumer Services",
+ "Building operators",
+ "http://www.nasdaq.com/symbol/emitf"
+ ],
+ [
+ "EMKR",
+ "EMCORE Corporation",
+ "5.5",
+ "$176.59M",
+ "1997",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/emkr"
+ ],
+ [
+ "EML",
+ "Eastern Company (The)",
+ "19.025",
+ "$118.4M",
+ "n/a",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/eml"
+ ],
+ [
+ "EMMS",
+ "Emmis Communications Corporation",
+ "2.14",
+ "$93.24M",
+ "1994",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/emms"
+ ],
+ [
+ "EMMSP",
+ "Emmis Communications Corporation",
+ "12.5",
+ "$16.64M",
+ "n/a",
+ "Consumer Services",
+ "Broadcasting",
+ "http://www.nasdaq.com/symbol/emmsp"
+ ],
+ [
+ "ENDP",
+ "Endo International plc",
+ "86.32",
+ "$14.91B",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/endp"
+ ],
+ [
+ "ENFC",
+ "Entegra Financial Corp.",
+ "15.8",
+ "$103.43M",
+ "2014",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/enfc"
+ ],
+ [
+ "ENG",
+ "ENGlobal Corporation",
+ "1.84",
+ "$51.03M",
+ "n/a",
+ "Consumer Services",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/eng"
+ ],
+ [
+ "ENOC",
+ "EnerNOC, Inc.",
+ "17.86",
+ "$521.07M",
+ "2007",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/enoc"
+ ],
+ [
+ "ENPH",
+ "Enphase Energy, Inc.",
+ "13.3",
+ "$580.21M",
+ "2012",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/enph"
+ ],
+ [
+ "ENSG",
+ "The Ensign Group, Inc.",
+ "41.41",
+ "$936.53M",
+ "2007",
+ "Health Care",
+ "Hospital/Nursing Management",
+ "http://www.nasdaq.com/symbol/ensg"
+ ],
+ [
+ "ENT",
+ "Global Eagle Entertainment Inc.",
+ "13.31",
+ "$1.02B",
+ "2011",
+ "Consumer Services",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/ent"
+ ],
+ [
+ "ENTA",
+ "Enanta Pharmaceuticals, Inc.",
+ "35.9",
+ "$670.63M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/enta"
+ ],
+ [
+ "ENTG",
+ "Entegris, Inc.",
+ "13.71",
+ "$1.91B",
+ "2000",
+ "Consumer Non-Durables",
+ "Plastic Products",
+ "http://www.nasdaq.com/symbol/entg"
+ ],
+ [
+ "ENTL",
+ "Entellus Medical, Inc.",
+ "23.09",
+ "$431.29M",
+ "2015",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/entl"
+ ],
+ [
+ "ENTR",
+ "Entropic Communications, Inc.",
+ "2.95",
+ "$265.72M",
+ "2007",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/entr"
+ ],
+ [
+ "ENVI",
+ "Envivio, Inc.",
+ "1.36",
+ "$37.69M",
+ "2012",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/envi"
+ ],
+ [
+ "ENZN",
+ "Enzon Pharmaceuticals, Inc.",
+ "1.1",
+ "$48.56M",
+ "1984",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/enzn"
+ ],
+ [
+ "ENZY ",
+ "Enzymotec Ltd.",
+ "7.06",
+ "$156.13M",
+ "2013",
+ "Consumer Durables",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/enzy "
+ ],
+ [
+ "EOPN",
+ "E2open, Inc.",
+ "8.55",
+ "$250.69M",
+ "2012",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/eopn"
+ ],
+ [
+ "EPAX",
+ "Ambassadors Group, Inc.",
+ "2.41",
+ "$41.08M",
+ "n/a",
+ "Consumer Services",
+ "Other Consumer Services",
+ "http://www.nasdaq.com/symbol/epax"
+ ],
+ [
+ "EPAY",
+ "Bottomline Technologies, Inc.",
+ "26.86",
+ "$1.07B",
+ "1999",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/epay"
+ ],
+ [
+ "EPIQ",
+ "EPIQ Systems, Inc.",
+ "18.28",
+ "$665.53M",
+ "1997",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/epiq"
+ ],
+ [
+ "EPRS",
+ "EPIRUS Biopharmaceuticals, Inc.",
+ "8.64",
+ "$194.69M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/eprs"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/data/stock_data_9.json b/packages/flutter/example/stocks/data/stock_data_9.json
new file mode 100644
index 0000000..73d6c2d
--- /dev/null
+++ b/packages/flutter/example/stocks/data/stock_data_9.json
@@ -0,0 +1,1002 @@
+[
+ [
+ "EPZM",
+ "Epizyme, Inc.",
+ "22.76",
+ "$777.56M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/epzm"
+ ],
+ [
+ "EQIX",
+ "Equinix, Inc.",
+ "235.38",
+ "$12.55B",
+ "2000",
+ "Public Utilities",
+ "Telecommunications Equipment",
+ "http://www.nasdaq.com/symbol/eqix"
+ ],
+ [
+ "ERI",
+ "Eldorado Resorts, Inc.",
+ "4.5499",
+ "$211.33M",
+ "n/a",
+ "Consumer Services",
+ "Hotels/Resorts",
+ "http://www.nasdaq.com/symbol/eri"
+ ],
+ [
+ "ERIC",
+ "Ericsson",
+ "13.02",
+ "$42.17B",
+ "n/a",
+ "Technology",
+ "Radio And Television Broadcasting And Communications Equipment",
+ "http://www.nasdaq.com/symbol/eric"
+ ],
+ [
+ "ERIE",
+ "Erie Indemnity Company",
+ "92.49",
+ "$4.27B",
+ "n/a",
+ "Finance",
+ "Specialty Insurers",
+ "http://www.nasdaq.com/symbol/erie"
+ ],
+ [
+ "ERII",
+ "Energy Recovery, Inc.",
+ "3.36",
+ "$174.31M",
+ "2008",
+ "Technology",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/erii"
+ ],
+ [
+ "EROC",
+ "Eagle Rock Energy Partners, L.P.",
+ "2.52",
+ "$403.51M",
+ "2006",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/eroc"
+ ],
+ [
+ "ERS",
+ "Empire Resources, Inc.",
+ "4.4675",
+ "$40.1M",
+ "n/a",
+ "Basic Industries",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/ers"
+ ],
+ [
+ "ERW",
+ "VelocityShares Equal Risk Weighted Large Cap ETF",
+ "55.14",
+ "$30.33M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/erw"
+ ],
+ [
+ "ESBK",
+ "Elmira Savings Bank NY (The)",
+ "21.14",
+ "$52.91M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/esbk"
+ ],
+ [
+ "ESCA",
+ "Escalade, Incorporated",
+ "15.52",
+ "$216.53M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Recreational Products/Toys",
+ "http://www.nasdaq.com/symbol/esca"
+ ],
+ [
+ "ESCR",
+ "Escalera Resources Co.",
+ "0.7298",
+ "$10.43M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/escr"
+ ],
+ [
+ "ESCRP",
+ "Escalera Resources Co.",
+ "14.91",
+ "n/a",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/escrp"
+ ],
+ [
+ "ESEA",
+ "Euroseas Ltd.",
+ "0.7568",
+ "$43.22M",
+ "n/a",
+ "Transportation",
+ "Marine Transportation",
+ "http://www.nasdaq.com/symbol/esea"
+ ],
+ [
+ "ESGR",
+ "Enstar Group Limited",
+ "136.88",
+ "$2.63B",
+ "n/a",
+ "Finance",
+ "Property-Casualty Insurers",
+ "http://www.nasdaq.com/symbol/esgr"
+ ],
+ [
+ "ESIO",
+ "Electro Scientific Industries, Inc.",
+ "6.55",
+ "$199.08M",
+ "n/a",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/esio"
+ ],
+ [
+ "ESLT",
+ "Elbit Systems Ltd.",
+ "64.29",
+ "$2.74B",
+ "n/a",
+ "Capital Goods",
+ "Military/Government/Technical",
+ "http://www.nasdaq.com/symbol/eslt"
+ ],
+ [
+ "ESMC",
+ "Escalon Medical Corp.",
+ "1.47",
+ "$11.06M",
+ "n/a",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/esmc"
+ ],
+ [
+ "ESPR",
+ "Esperion Therapeutics, Inc.",
+ "65.98",
+ "$1.34B",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/espr"
+ ],
+ [
+ "ESRX",
+ "Express Scripts Holding Company",
+ "86.08",
+ "$63.17B",
+ "1992",
+ "Health Care",
+ "Medical/Nursing Services",
+ "http://www.nasdaq.com/symbol/esrx"
+ ],
+ [
+ "ESSA",
+ "ESSA Bancorp, Inc.",
+ "12.15",
+ "$138.93M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/essa"
+ ],
+ [
+ "ESSX",
+ "Essex Rental Corporation",
+ "1.2676",
+ "$31.45M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/essx"
+ ],
+ [
+ "ESXB",
+ "Community Bankers Trust Corporation.",
+ "4.48",
+ "$97.59M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/esxb"
+ ],
+ [
+ "ETFC",
+ "E*TRADE Financial Corporation",
+ "26.15",
+ "$7.56B",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/etfc"
+ ],
+ [
+ "ETRM",
+ "EnteroMedics Inc.",
+ "1.15",
+ "$79.47M",
+ "2007",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/etrm"
+ ],
+ [
+ "EUFN",
+ "iShares MSCI Europe Financials Sector Index Fund",
+ "23.13",
+ "$420.97M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/eufn"
+ ],
+ [
+ "EVAL",
+ "iShares MSCI Emerging Markets Value Index Fund",
+ "44.44",
+ "$22.22M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/eval"
+ ],
+ [
+ "EVAR",
+ "Lombard Medical, Inc.",
+ "5.51",
+ "$89.18M",
+ "2014",
+ "Health Care",
+ "Medical/Dental Instruments",
+ "http://www.nasdaq.com/symbol/evar"
+ ],
+ [
+ "EVBS",
+ "Eastern Virginia Bankshares, Inc.",
+ "6.22",
+ "$74.09M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/evbs"
+ ],
+ [
+ "EVEP",
+ "EV Energy Partners, L.P.",
+ "16.42",
+ "$797.55M",
+ "2006",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/evep"
+ ],
+ [
+ "EVK",
+ "Ever-Glory International Group, Inc.",
+ "6.3",
+ "$93.14M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Apparel",
+ "http://www.nasdaq.com/symbol/evk"
+ ],
+ [
+ "EVLV",
+ "EVINE Live Inc.",
+ "6.56",
+ "$369.7M",
+ "n/a",
+ "Consumer Services",
+ "Catalog/Specialty Distribution",
+ "http://www.nasdaq.com/symbol/evlv"
+ ],
+ [
+ "EVOK",
+ "Evoke Pharma, Inc.",
+ "5.68",
+ "$34.72M",
+ "2013",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/evok"
+ ],
+ [
+ "EVOL",
+ "Evolving Systems, Inc.",
+ "8.56",
+ "$99.84M",
+ "1998",
+ "Technology",
+ "EDP Services",
+ "http://www.nasdaq.com/symbol/evol"
+ ],
+ [
+ "EVRY",
+ "EveryWare Global, Inc.",
+ "1.06",
+ "$23.45M",
+ "2012",
+ "Consumer Durables",
+ "Home Furnishings",
+ "http://www.nasdaq.com/symbol/evry"
+ ],
+ [
+ "EWBC",
+ "East West Bancorp, Inc.",
+ "40.53",
+ "$5.82B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ewbc"
+ ],
+ [
+ "EXA",
+ "Exa Corporation",
+ "10.4",
+ "$143.91M",
+ "2012",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/exa"
+ ],
+ [
+ "EXAC",
+ "Exactech, Inc.",
+ "23.18",
+ "$320.07M",
+ "1996",
+ "Health Care",
+ "Industrial Specialties",
+ "http://www.nasdaq.com/symbol/exac"
+ ],
+ [
+ "EXAS",
+ "EXACT Sciences Corporation",
+ "25.655",
+ "$2.17B",
+ "2001",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/exas"
+ ],
+ [
+ "EXEL",
+ "Exelixis, Inc.",
+ "2.74",
+ "$534.89M",
+ "2000",
+ "Health Care",
+ "Biotechnology: Commercial Physical & Biological Resarch",
+ "http://www.nasdaq.com/symbol/exel"
+ ],
+ [
+ "EXFO",
+ "EXFO Inc",
+ "3.74",
+ "$107.47M",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/exfo"
+ ],
+ [
+ "EXLP",
+ "Exterran Partners, L.P.",
+ "23.01",
+ "$1.28B",
+ "n/a",
+ "Public Utilities",
+ "Natural Gas Distribution",
+ "http://www.nasdaq.com/symbol/exlp"
+ ],
+ [
+ "EXLS",
+ "ExlService Holdings, Inc.",
+ "32.2",
+ "$1.06B",
+ "2006",
+ "Miscellaneous",
+ "Business Services",
+ "http://www.nasdaq.com/symbol/exls"
+ ],
+ [
+ "EXPD",
+ "Expeditors International of Washington, Inc.",
+ "45.505",
+ "$8.78B",
+ "n/a",
+ "Transportation",
+ "Oil Refining/Marketing",
+ "http://www.nasdaq.com/symbol/expd"
+ ],
+ [
+ "EXPE",
+ "Expedia, Inc.",
+ "92.3",
+ "$11.7B",
+ "n/a",
+ "Consumer Services",
+ "Transportation Services",
+ "http://www.nasdaq.com/symbol/expe"
+ ],
+ [
+ "EXPO",
+ "Exponent, Inc.",
+ "88.06",
+ "$1.13B",
+ "n/a",
+ "Consumer Services",
+ "Professional Services",
+ "http://www.nasdaq.com/symbol/expo"
+ ],
+ [
+ "EXTR",
+ "Extreme Networks, Inc.",
+ "3.46",
+ "$343.67M",
+ "1999",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/extr"
+ ],
+ [
+ "EXXI",
+ "Energy XXI Ltd.",
+ "4.26",
+ "$402.09M",
+ "n/a",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/exxi"
+ ],
+ [
+ "EYES",
+ "Second Sight Medical Products, Inc.",
+ "8.75",
+ "$302.97M",
+ "2014",
+ "Health Care",
+ "Biotechnology: Electromedical & Electrotherapeutic Apparatus",
+ "http://www.nasdaq.com/symbol/eyes"
+ ],
+ [
+ "EZCH",
+ "EZchip Semiconductor Limited",
+ "21.75",
+ "$645.95M",
+ "n/a",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/ezch"
+ ],
+ [
+ "EZPW",
+ "EZCORP, Inc.",
+ "10.37",
+ "$556.36M",
+ "1991",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/ezpw"
+ ],
+ [
+ "FALC",
+ "FalconStor Software, Inc.",
+ "1.55",
+ "$63.43M",
+ "n/a",
+ "Technology",
+ "Computer Software: Prepackaged Software",
+ "http://www.nasdaq.com/symbol/falc"
+ ],
+ [
+ "FANG",
+ "Diamondback Energy, Inc.",
+ "75.09",
+ "$4.4B",
+ "2012",
+ "Energy",
+ "Oil & Gas Production",
+ "http://www.nasdaq.com/symbol/fang"
+ ],
+ [
+ "FARM",
+ "Farmer Brothers Company",
+ "24.09",
+ "$399.7M",
+ "n/a",
+ "Consumer Non-Durables",
+ "Packaged Foods",
+ "http://www.nasdaq.com/symbol/farm"
+ ],
+ [
+ "FARO",
+ "FARO Technologies, Inc.",
+ "59.04",
+ "$1.02B",
+ "1997",
+ "Capital Goods",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/faro"
+ ],
+ [
+ "FAST",
+ "Fastenal Company",
+ "42.765",
+ "$12.65B",
+ "1987",
+ "Consumer Services",
+ "RETAIL: Building Materials",
+ "http://www.nasdaq.com/symbol/fast"
+ ],
+ [
+ "FATE",
+ "Fate Therapeutics, Inc.",
+ "5",
+ "$102.85M",
+ "2013",
+ "Health Care",
+ "Biotechnology: Biological Products (No Diagnostic Substances)",
+ "http://www.nasdaq.com/symbol/fate"
+ ],
+ [
+ "FB",
+ "Facebook, Inc.",
+ "79.895",
+ "$223.63B",
+ "2012",
+ "Technology",
+ "Computer Software: Programming, Data Processing",
+ "http://www.nasdaq.com/symbol/fb"
+ ],
+ [
+ "FBIZ",
+ "First Business Financial Services, Inc.",
+ "47",
+ "$186.74M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fbiz"
+ ],
+ [
+ "FBMS",
+ "The First Bancshares, Inc.",
+ "14.82",
+ "$78.72M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fbms"
+ ],
+ [
+ "FBNC",
+ "First Bancorp",
+ "17.16",
+ "$338.14M",
+ "1987",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fbnc"
+ ],
+ [
+ "FBNK",
+ "First Connecticut Bancorp, Inc.",
+ "14.98",
+ "$240.07M",
+ "2011",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/fbnk"
+ ],
+ [
+ "FBRC",
+ "FBR & Co",
+ "24.07",
+ "$213.75M",
+ "n/a",
+ "Finance",
+ "Investment Bankers/Brokers/Service",
+ "http://www.nasdaq.com/symbol/fbrc"
+ ],
+ [
+ "FBSS",
+ "Fauquier Bankshares, Inc.",
+ "16.25",
+ "$60.63M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fbss"
+ ],
+ [
+ "FCAP",
+ "First Capital, Inc.",
+ "24.5",
+ "$67.14M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/fcap"
+ ],
+ [
+ "FCBC",
+ "First Community Bancshares, Inc.",
+ "16.3",
+ "$299.66M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fcbc"
+ ],
+ [
+ "FCCO",
+ "First Community Corporation",
+ "11.73",
+ "$78.13M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fcco"
+ ],
+ [
+ "FCCY",
+ "1st Constitution Bancorp (NJ)",
+ "11.18",
+ "$79.77M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/fccy"
+ ],
+ [
+ "FCEL",
+ "FuelCell Energy, Inc.",
+ "1.33",
+ "$388.63M",
+ "n/a",
+ "Miscellaneous",
+ "Industrial Machinery/Components",
+ "http://www.nasdaq.com/symbol/fcel"
+ ],
+ [
+ "FCFS",
+ "First Cash Financial Services, Inc.",
+ "48.92",
+ "$1.39B",
+ "1991",
+ "Consumer Services",
+ "Other Specialty Stores",
+ "http://www.nasdaq.com/symbol/fcfs"
+ ],
+ [
+ "FCHI",
+ "iShares FTSE China Index Fund",
+ "53.11",
+ "$26.56M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/fchi"
+ ],
+ [
+ "FCLF",
+ "First Clover Leaf Financial Corp.",
+ "8.7",
+ "$60.96M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/fclf"
+ ],
+ [
+ "FCNCA",
+ "First Citizens BancShares, Inc.",
+ "253.82",
+ "$2.44B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fcnca"
+ ],
+ [
+ "FCS",
+ "Fairchild Semiconductor International, Inc.",
+ "16.11",
+ "$1.91B",
+ "1999",
+ "Technology",
+ "Semiconductors",
+ "http://www.nasdaq.com/symbol/fcs"
+ ],
+ [
+ "FCSC",
+ "Fibrocell Science Inc",
+ "4.9",
+ "$200.2M",
+ "n/a",
+ "Health Care",
+ "Major Pharmaceuticals",
+ "http://www.nasdaq.com/symbol/fcsc"
+ ],
+ [
+ "FCTY",
+ "1st Century Bancshares, Inc",
+ "6.774",
+ "$68.73M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fcty"
+ ],
+ [
+ "FCVA",
+ "First Capital Bancorp, Inc. (VA)",
+ "4.3",
+ "$55.32M",
+ "2007",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fcva"
+ ],
+ [
+ "FCZA",
+ "First Citizens Banc Corp.",
+ "10.87",
+ "$83.79M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fcza"
+ ],
+ [
+ "FCZAP",
+ "First Citizens Banc Corp.",
+ "35.21",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/fczap"
+ ],
+ [
+ "FDEF",
+ "First Defiance Financial Corp.",
+ "32",
+ "$298.99M",
+ "n/a",
+ "Finance",
+ "Savings Institutions",
+ "http://www.nasdaq.com/symbol/fdef"
+ ],
+ [
+ "FDIV",
+ "First Trust Strategic Income ETF",
+ "50.3",
+ "$20.12M",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/fdiv"
+ ],
+ [
+ "FDML",
+ "Federal-Mogul Holdings Corporation",
+ "15.41",
+ "$2.31B",
+ "n/a",
+ "Capital Goods",
+ "Auto Parts:O.E.M.",
+ "http://www.nasdaq.com/symbol/fdml"
+ ],
+ [
+ "FDUS",
+ "Fidus Investment Corporation",
+ "16.44",
+ "$263.48M",
+ "2011",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/fdus"
+ ],
+ [
+ "FEIC",
+ "FEI Company",
+ "80.52",
+ "$3.35B",
+ "1995",
+ "Capital Goods",
+ "Biotechnology: Laboratory Analytical Instruments",
+ "http://www.nasdaq.com/symbol/feic"
+ ],
+ [
+ "FEIM",
+ "Frequency Electronics, Inc.",
+ "12.37",
+ "$106.45M",
+ "n/a",
+ "Capital Goods",
+ "Electrical Products",
+ "http://www.nasdaq.com/symbol/feim"
+ ],
+ [
+ "FELE",
+ "Franklin Electric Co., Inc.",
+ "34.81",
+ "$1.65B",
+ "n/a",
+ "Consumer Durables",
+ "Metal Fabrications",
+ "http://www.nasdaq.com/symbol/fele"
+ ],
+ [
+ "FEMB",
+ "First Trust Emerging Markets Local Currency Bond ETF",
+ "47.64",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/femb"
+ ],
+ [
+ "FES",
+ "Forbes Energy Services Ltd",
+ "1.12",
+ "$24.46M",
+ "n/a",
+ "Energy",
+ "Oilfield Services/Equipment",
+ "http://www.nasdaq.com/symbol/fes"
+ ],
+ [
+ "FEUZ",
+ "First Trust Eurozone AlphaDEX ETF",
+ "33.04",
+ "n/a",
+ "n/a",
+ "n/a",
+ "n/a",
+ "http://www.nasdaq.com/symbol/feuz"
+ ],
+ [
+ "FEYE",
+ "FireEye, Inc.",
+ "46.15",
+ "$6.94B",
+ "2013",
+ "Technology",
+ "Computer peripheral equipment",
+ "http://www.nasdaq.com/symbol/feye"
+ ],
+ [
+ "FFBC",
+ "First Financial Bancorp.",
+ "17.67",
+ "$1.08B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ffbc"
+ ],
+ [
+ "FFBCW",
+ "First Financial Bancorp.",
+ "6.11",
+ "n/a",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ffbcw"
+ ],
+ [
+ "FFHL",
+ "Fuwei Films (Holdings) Co., Ltd.",
+ "0.6",
+ "$7.84M",
+ "2006",
+ "Capital Goods",
+ "Specialty Chemicals",
+ "http://www.nasdaq.com/symbol/ffhl"
+ ],
+ [
+ "FFIC",
+ "Flushing Financial Corporation",
+ "19.61",
+ "$581.45M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ffic"
+ ],
+ [
+ "FFIN",
+ "First Financial Bankshares, Inc.",
+ "26.07",
+ "$1.67B",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ffin"
+ ],
+ [
+ "FFIV",
+ "F5 Networks, Inc.",
+ "119.36",
+ "$8.61B",
+ "1999",
+ "Technology",
+ "Computer Communications Equipment",
+ "http://www.nasdaq.com/symbol/ffiv"
+ ],
+ [
+ "FFKT",
+ "Farmers Capital Bank Corporation",
+ "22.83",
+ "$170.94M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ffkt"
+ ],
+ [
+ "FFNM",
+ "First Federal of Northern Michigan Bancorp, Inc.",
+ "5.4464",
+ "$20.3M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ffnm"
+ ],
+ [
+ "FFNW",
+ "First Financial Northwest, Inc.",
+ "12.27",
+ "$188.7M",
+ "n/a",
+ "Finance",
+ "Banks",
+ "http://www.nasdaq.com/symbol/ffnw"
+ ],
+ [
+ "FFWM",
+ "First Foundation Inc.",
+ "17.89",
+ "$138.38M",
+ "n/a",
+ "Finance",
+ "Major Banks",
+ "http://www.nasdaq.com/symbol/ffwm"
+ ]
+]
\ No newline at end of file
diff --git a/packages/flutter/example/stocks/lib/main.dart b/packages/flutter/example/stocks/lib/main.dart
new file mode 100644
index 0000000..fea5994
--- /dev/null
+++ b/packages/flutter/example/stocks/lib/main.dart
@@ -0,0 +1,103 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/theme/typography.dart' as typography;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/default_text_style.dart';
+import 'package:sky/widgets/navigator.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/widget.dart';
+import 'package:sky/widgets/task_description.dart';
+
+import 'stock_data.dart';
+import 'stock_home.dart';
+import 'stock_settings.dart';
+import 'stock_types.dart';
+
+class StocksApp extends App {
+
+ NavigationState _navigationState;
+
+ void initState() {
+ _navigationState = new NavigationState([
+ new Route(
+ name: '/',
+ builder: (navigator, route) => new StockHome(navigator, _stocks, optimismSetting, modeUpdater)
+ ),
+ new Route(
+ name: '/settings',
+ builder: (navigator, route) => new StockSettings(navigator, optimismSetting, backupSetting, settingsUpdater)
+ ),
+ ]);
+ super.initState();
+ }
+
+ void onBack() {
+ if (_navigationState.hasPrevious()) {
+ setState(() {
+ _navigationState.pop();
+ });
+ } else {
+ super.onBack();
+ }
+ }
+
+ StockMode optimismSetting = StockMode.optimistic;
+ BackupMode backupSetting = BackupMode.disabled;
+ void modeUpdater(StockMode optimism) {
+ setState(() {
+ optimismSetting = optimism;
+ });
+ }
+ void settingsUpdater({ StockMode optimism, BackupMode backup }) {
+ setState(() {
+ if (optimism != null)
+ optimismSetting = optimism;
+ if (backup != null)
+ backupSetting = backup;
+ });
+ }
+
+ final List<Stock> _stocks = [];
+ void didMount() {
+ super.didMount();
+ new StockDataFetcher((StockData data) {
+ setState(() {
+ data.appendTo(_stocks);
+ });
+ });
+ }
+
+ Widget build() {
+
+ ThemeData theme;
+ if (optimismSetting == StockMode.optimistic) {
+ theme = new ThemeData(
+ brightness: ThemeBrightness.light,
+ primarySwatch: colors.Purple
+ );
+ } else {
+ theme = new ThemeData(
+ brightness: ThemeBrightness.dark,
+ accentColor: colors.RedAccent[200]
+ );
+ }
+
+ return new Theme(
+ data: theme,
+ child: new DefaultTextStyle(
+ style: typography.error, // if you see this, you've forgotten to correctly configure the text style!
+ child: new TaskDescription(
+ label: 'Stocks',
+ child: new Navigator(_navigationState)
+ )
+ )
+ );
+ }
+}
+
+void main() {
+ runApp(new StocksApp());
+}
diff --git a/packages/flutter/example/stocks/lib/stock_arrow.dart b/packages/flutter/example/stocks/lib/stock_arrow.dart
new file mode 100644
index 0000000..95da330
--- /dev/null
+++ b/packages/flutter/example/stocks/lib/stock_arrow.dart
@@ -0,0 +1,75 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+import 'dart:sky' as sky;
+
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/widgets/basic.dart';
+
+class StockArrow extends Component {
+
+ StockArrow({ String key, this.percentChange }) : super(key: key);
+
+ final double percentChange;
+
+ int _colorIndexForPercentChange(double percentChange) {
+ double maxPercent = 10.0;
+ double normalizedPercentChange = math.min(percentChange.abs(), maxPercent) / maxPercent;
+ return 100 + (normalizedPercentChange * 8.0).floor() * 100;
+ }
+
+ Color _colorForPercentChange(double percentChange) {
+ if (percentChange > 0)
+ return colors.Green[_colorIndexForPercentChange(percentChange)];
+ return colors.Red[_colorIndexForPercentChange(percentChange)];
+ }
+
+ Widget build() {
+ // TODO(jackson): This should change colors with the theme
+ Color color = _colorForPercentChange(percentChange);
+ const double kSize = 40.0;
+ var arrow = new CustomPaint(callback: (sky.Canvas canvas, Size size) {
+ Paint paint = new Paint()..color = color;
+ paint.strokeWidth = 1.0;
+ const double padding = 2.0;
+ assert(padding > paint.strokeWidth / 2.0); // make sure the circle remains inside the box
+ double r = (kSize - padding) / 2.0; // radius of the circle
+ double centerX = padding + r;
+ double centerY = padding + r;
+
+ // Draw the arrow.
+ double w = 8.0;
+ double h = 5.0;
+ double arrowY;
+ if (percentChange < 0.0) {
+ h = -h;
+ arrowY = centerX + 1.0;
+ } else {
+ arrowY = centerX - 1.0;
+ }
+ Path path = new Path();
+ path.moveTo(centerX, arrowY - h); // top of the arrow
+ path.lineTo(centerX + w, arrowY + h);
+ path.lineTo(centerX - w, arrowY + h);
+ path.close();
+ paint.setStyle(sky.PaintingStyle.fill);
+ canvas.drawPath(path, paint);
+
+ // Draw a circle that circumscribes the arrow.
+ paint.setStyle(sky.PaintingStyle.stroke);
+ canvas.drawCircle(new Point(centerX, centerY), r, paint);
+ });
+
+ return new Container(
+ child: arrow,
+ width: kSize,
+ height: kSize,
+ margin: const EdgeDims.symmetric(horizontal: 5.0)
+ );
+ }
+
+}
diff --git a/packages/flutter/example/stocks/lib/stock_data.dart b/packages/flutter/example/stocks/lib/stock_data.dart
new file mode 100644
index 0000000..5526a9c
--- /dev/null
+++ b/packages/flutter/example/stocks/lib/stock_data.dart
@@ -0,0 +1,84 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:convert';
+import 'dart:math';
+
+import 'package:sky/mojo/net/fetch.dart';
+import 'package:sky/mojo/asset_bundle.dart';
+
+// Snapshot from http://www.nasdaq.com/screening/company-list.aspx
+// Fetched 2/23/2014.
+// "Symbol","Name","LastSale","MarketCap","IPOyear","Sector","industry","Summary Quote",
+// Data in stock_data.json
+
+final Random _rng = new Random();
+
+class Stock {
+ String symbol;
+ String name;
+ double lastSale;
+ String marketCap;
+ double percentChange;
+
+ Stock(this.symbol, this.name, this.lastSale, this.marketCap, this.percentChange);
+
+ Stock.fromFields(List<String> fields) {
+ // FIXME: This class should only have static data, not lastSale, etc.
+ // "Symbol","Name","LastSale","MarketCap","IPOyear","Sector","industry","Summary Quote",
+ lastSale = 0.0;
+ try{
+ lastSale = double.parse(fields[2]);
+ } catch(_) {}
+ symbol = fields[0];
+ name = fields[1];
+ marketCap = fields[4];
+ percentChange = (_rng.nextDouble() * 20) - 10;
+ }
+}
+
+class StockData {
+ List<List<String>> _data;
+
+ StockData(this._data);
+
+ void appendTo(List<Stock> stocks) {
+ for (List<String> fields in _data)
+ stocks.add(new Stock.fromFields(fields));
+ }
+}
+
+typedef void StockDataCallback(StockData data);
+const _kChunkCount = 30;
+
+String _urlToFetch(int chunk) {
+ if (rootBundle == null)
+ return '../data/stock_data_${chunk}.json';
+ return 'https://domokit.github.io/example/stocks/data/stock_data_${chunk}.json';
+}
+
+class StockDataFetcher {
+ int _nextChunk = 0;
+ final StockDataCallback callback;
+
+ StockDataFetcher(this.callback) {
+ _fetchNextChunk();
+ }
+
+ void _fetchNextChunk() {
+ fetchBody(_urlToFetch(_nextChunk++)).then((Response response) {
+ String json = response.bodyAsString();
+ if (json == null) {
+ print("Failed to load stock data chunk ${_nextChunk - 1}");
+ return;
+ }
+ JsonDecoder decoder = new JsonDecoder();
+
+ callback(new StockData(decoder.convert(json)));
+
+ if (_nextChunk < _kChunkCount)
+ _fetchNextChunk();
+ });
+ }
+}
diff --git a/packages/flutter/example/stocks/lib/stock_home.dart b/packages/flutter/example/stocks/lib/stock_home.dart
new file mode 100644
index 0000000..b7a314c
--- /dev/null
+++ b/packages/flutter/example/stocks/lib/stock_home.dart
@@ -0,0 +1,329 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/editing/input.dart';
+import 'package:sky/animation/animation_performance.dart';
+import 'package:sky/widgets/animated_component.dart';
+import 'package:sky/widgets/animation_builder.dart';
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/drawer.dart';
+import 'package:sky/widgets/drawer_divider.dart';
+import 'package:sky/widgets/drawer_header.dart';
+import 'package:sky/widgets/drawer_item.dart';
+import 'package:sky/widgets/floating_action_button.dart';
+import 'package:sky/widgets/icon.dart';
+import 'package:sky/widgets/icon_button.dart';
+import 'package:sky/widgets/modal_overlay.dart';
+import 'package:sky/widgets/navigator.dart';
+import 'package:sky/widgets/popup_menu.dart';
+import 'package:sky/widgets/radio.dart';
+import 'package:sky/widgets/snack_bar.dart';
+import 'package:sky/widgets/scaffold.dart';
+import 'package:sky/widgets/tabs.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/tool_bar.dart';
+import 'package:sky/widgets/widget.dart';
+
+import 'stock_data.dart';
+import 'stock_list.dart';
+import 'stock_menu.dart';
+import 'stock_types.dart';
+
+typedef void ModeUpdater(StockMode mode);
+
+const Duration _kSnackbarSlideDuration = const Duration(milliseconds: 200);
+
+class StockHome extends AnimatedComponent {
+
+ StockHome(this.navigator, this.stocks, this.stockMode, this.modeUpdater);
+
+ Navigator navigator;
+ List<Stock> stocks;
+ StockMode stockMode;
+ ModeUpdater modeUpdater;
+
+ void syncFields(StockHome source) {
+ navigator = source.navigator;
+ stocks = source.stocks;
+ stockMode = source.stockMode;
+ modeUpdater = source.modeUpdater;
+ }
+
+ bool _isSearching = false;
+ String _searchQuery;
+
+ AnimationBuilder _snackbarTransform;
+
+ void _handleSearchBegin() {
+ navigator.pushState(this, (_) {
+ setState(() {
+ _isSearching = false;
+ _searchQuery = null;
+ });
+ });
+ setState(() {
+ _isSearching = true;
+ });
+ }
+
+ void _handleSearchEnd() {
+ assert(navigator.currentRoute.key == this);
+ navigator.pop();
+ setState(() {
+ _isSearching = false;
+ _searchQuery = null;
+ });
+ }
+
+ void _handleSearchQueryChanged(String query) {
+ setState(() {
+ _searchQuery = query;
+ });
+ }
+
+ bool _drawerShowing = false;
+ DrawerStatus _drawerStatus = DrawerStatus.inactive;
+
+ void _handleOpenDrawer() {
+ setState(() {
+ _drawerShowing = true;
+ _drawerStatus = DrawerStatus.active;
+ });
+ }
+
+ void _handleDrawerStatusChange(DrawerStatus status) {
+ setState(() {
+ _drawerStatus = status;
+ });
+ }
+
+ bool _menuShowing = false;
+ PopupMenuStatus _menuStatus = PopupMenuStatus.inactive;
+
+ void _handleMenuShow() {
+ setState(() {
+ _menuShowing = true;
+ _menuStatus = PopupMenuStatus.active;
+ });
+ }
+
+ void _handleMenuHide() {
+ setState(() {
+ _menuShowing = false;
+ });
+ }
+
+ void _handleMenuStatusChanged(PopupMenuStatus status) {
+ setState(() {
+ _menuStatus = status;
+ });
+ }
+
+ bool _autorefresh = false;
+ void _handleAutorefreshChanged(bool value) {
+ setState(() {
+ _autorefresh = value;
+ });
+ }
+
+ void _handleStockModeChange(StockMode value) {
+ setState(() {
+ stockMode = value;
+ });
+ if (modeUpdater != null)
+ modeUpdater(value);
+ }
+
+ Drawer buildDrawer() {
+ if (_drawerStatus == DrawerStatus.inactive)
+ return null;
+ return new Drawer(
+ level: 3,
+ showing: _drawerShowing,
+ onStatusChanged: _handleDrawerStatusChange,
+ navigator: navigator,
+ children: [
+ new DrawerHeader(children: [new Text('Stocks')]),
+ new DrawerItem(
+ icon: 'action/assessment',
+ selected: true,
+ children: [new Text('Stock List')]),
+ new DrawerItem(
+ icon: 'action/account_balance',
+ children: [new Text('Account Balance')]),
+ new DrawerDivider(),
+ new DrawerItem(
+ icon: 'action/thumb_up',
+ onPressed: () => _handleStockModeChange(StockMode.optimistic),
+ children: [
+ new Flexible(child: new Text('Optimistic')),
+ new Radio(value: StockMode.optimistic, groupValue: stockMode, onChanged: _handleStockModeChange)
+ ]),
+ new DrawerItem(
+ icon: 'action/thumb_down',
+ onPressed: () => _handleStockModeChange(StockMode.pessimistic),
+ children: [
+ new Flexible(child: new Text('Pessimistic')),
+ new Radio(value: StockMode.pessimistic, groupValue: stockMode, onChanged: _handleStockModeChange)
+ ]),
+ new DrawerDivider(),
+ new DrawerItem(
+ icon: 'action/settings',
+ onPressed: _handleShowSettings,
+ children: [new Text('Settings')]),
+ new DrawerItem(
+ icon: 'action/help',
+ children: [new Text('Help & Feedback')])
+ ]
+ );
+ }
+
+ void _handleShowSettings() {
+ navigator.pop();
+ navigator.pushNamed('/settings');
+ }
+
+ Widget buildToolBar() {
+ return new ToolBar(
+ left: new IconButton(
+ icon: "navigation/menu",
+ onPressed: _handleOpenDrawer),
+ center: new Text('Stocks'),
+ right: [
+ new IconButton(
+ icon: "action/search",
+ onPressed: _handleSearchBegin),
+ new IconButton(
+ icon: "navigation/more_vert",
+ onPressed: _handleMenuShow)
+ ]
+ );
+ }
+
+ int selectedTabIndex = 0;
+ List<String> portfolioSymbols = ["AAPL","FIZZ", "FIVE", "FLAT", "ZINC", "ZNGA"];
+
+ Iterable<Stock> _filterByPortfolio(Iterable<Stock> stocks) {
+ return stocks.where((stock) => portfolioSymbols.contains(stock.symbol));
+ }
+
+ Iterable<Stock> _filterBySearchQuery(Iterable<Stock> stocks) {
+ if (_searchQuery == null)
+ return stocks;
+ RegExp regexp = new RegExp(_searchQuery, caseSensitive: false);
+ return stocks.where((stock) => stock.symbol.contains(regexp));
+ }
+
+ Widget buildMarketStockList() {
+ return new Stocklist(stocks: _filterBySearchQuery(stocks).toList());
+ }
+
+ Widget buildPortfolioStocklist() {
+ return new Stocklist(stocks: _filterBySearchQuery(_filterByPortfolio(stocks)).toList());
+ }
+
+ Widget buildTabNavigator() {
+ List<TabNavigatorView> views = <TabNavigatorView>[
+ new TabNavigatorView(
+ label: const TabLabel(text: 'MARKET'),
+ builder: buildMarketStockList
+ ),
+ new TabNavigatorView(
+ label: const TabLabel(text: 'PORTFOLIO'),
+ builder: buildPortfolioStocklist
+ )
+ ];
+ return new TabNavigator(
+ views: views,
+ selectedIndex: selectedTabIndex,
+ onChanged: (tabIndex) {
+ setState(() { selectedTabIndex = tabIndex; } );
+ }
+ );
+ }
+
+ // TODO(abarth): Should we factor this into a SearchBar in the framework?
+ Widget buildSearchBar() {
+ return new ToolBar(
+ left: new IconButton(
+ icon: "navigation/arrow_back",
+ color: Theme.of(this).accentColor,
+ onPressed: _handleSearchEnd
+ ),
+ center: new Input(
+ focused: true,
+ placeholder: 'Search stocks',
+ onChanged: _handleSearchQueryChanged
+ ),
+ backgroundColor: Theme.of(this).canvasColor
+ );
+ }
+
+ void _handleUndo() {
+ setState(() {
+ _snackbarTransform = null;
+ });
+ }
+
+ Widget buildSnackBar() {
+ if (_snackbarTransform == null)
+ return null;
+ return _snackbarTransform.build(
+ new SnackBar(
+ content: new Text("Stock purchased!"),
+ actions: [new SnackBarAction(label: "UNDO", onPressed: _handleUndo)]
+ ));
+ }
+
+ void _handleStockPurchased() {
+ setState(() {
+ _snackbarTransform = new AnimationBuilder()
+ ..position = new AnimatedType<Point>(const Point(0.0, 45.0), end: Point.origin);
+ var performance = _snackbarTransform.createPerformance(
+ [_snackbarTransform.position], duration: _kSnackbarSlideDuration);
+ watch(performance);
+ performance.play();
+ });
+ }
+
+ Widget buildFloatingActionButton() {
+ var widget = new FloatingActionButton(
+ child: new Icon(type: 'content/add', size: 24),
+ backgroundColor: colors.RedAccent[200],
+ onPressed: _handleStockPurchased
+ );
+ if (_snackbarTransform != null)
+ widget = _snackbarTransform.build(widget);
+ return widget;
+ }
+
+ void addMenuToOverlays(List<Widget> overlays) {
+ if (_menuStatus == PopupMenuStatus.inactive)
+ return;
+ overlays.add(new ModalOverlay(
+ children: [new StockMenu(
+ showing: _menuShowing,
+ onStatusChanged: _handleMenuStatusChanged,
+ navigator: navigator,
+ autorefresh: _autorefresh,
+ onAutorefreshChanged: _handleAutorefreshChanged
+ )],
+ onDismiss: _handleMenuHide));
+ }
+
+ Widget build() {
+ List<Widget> overlays = [
+ new Scaffold(
+ toolbar: _isSearching ? buildSearchBar() : buildToolBar(),
+ body: buildTabNavigator(),
+ snackBar: buildSnackBar(),
+ floatingActionButton: buildFloatingActionButton(),
+ drawer: buildDrawer()
+ ),
+ ];
+ addMenuToOverlays(overlays);
+ return new Stack(overlays);
+ }
+}
diff --git a/packages/flutter/example/stocks/lib/stock_list.dart b/packages/flutter/example/stocks/lib/stock_list.dart
new file mode 100644
index 0000000..8316de6
--- /dev/null
+++ b/packages/flutter/example/stocks/lib/stock_list.dart
@@ -0,0 +1,27 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/widgets/scrollable_list.dart';
+import 'package:sky/widgets/material.dart';
+import 'package:sky/widgets/basic.dart';
+
+import 'stock_data.dart';
+import 'stock_row.dart';
+
+class Stocklist extends Component {
+ Stocklist({ String key, this.stocks }) : super(key: key);
+
+ final List<Stock> stocks;
+
+ Widget build() {
+ return new Material(
+ type: MaterialType.canvas,
+ child: new ScrollableList<Stock>(
+ items: stocks,
+ itemHeight: StockRow.kHeight,
+ itemBuilder: (stock) => new StockRow(stock: stock)
+ )
+ );
+ }
+}
diff --git a/packages/flutter/example/stocks/lib/stock_menu.dart b/packages/flutter/example/stocks/lib/stock_menu.dart
new file mode 100644
index 0000000..9cb7a09
--- /dev/null
+++ b/packages/flutter/example/stocks/lib/stock_menu.dart
@@ -0,0 +1,53 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/checkbox.dart';
+import 'package:sky/widgets/navigator.dart';
+import 'package:sky/widgets/popup_menu_item.dart';
+import 'package:sky/widgets/popup_menu.dart';
+
+export 'package:sky/widgets/popup_menu.dart' show PopupMenuStatus;
+
+class StockMenu extends Component {
+ StockMenu({
+ String key,
+ this.showing,
+ this.onStatusChanged,
+ this.navigator,
+ this.autorefresh: false,
+ this.onAutorefreshChanged
+ }) : super(key: key);
+
+ final bool showing;
+ final PopupMenuStatusChangedCallback onStatusChanged;
+ final Navigator navigator;
+ final bool autorefresh;
+ final ValueChanged onAutorefreshChanged;
+
+ Widget build() {
+ var checkbox = new Checkbox(
+ value: this.autorefresh,
+ onChanged: this.onAutorefreshChanged
+ );
+
+ return new Positioned(
+ child: new PopupMenu(
+ items: [
+ new PopupMenuItem(child: new Text('Add stock')),
+ new PopupMenuItem(child: new Text('Remove stock')),
+ new PopupMenuItem(child: new Flex([new Flexible(child: new Text('Autorefresh')), checkbox])),
+ ],
+ level: 4,
+ showing: showing,
+ onStatusChanged: onStatusChanged,
+ navigator: navigator
+ ),
+ right: sky.view.paddingRight,
+ top: sky.view.paddingTop
+ );
+ }
+}
diff --git a/packages/flutter/example/stocks/lib/stock_row.dart b/packages/flutter/example/stocks/lib/stock_row.dart
new file mode 100644
index 0000000..57d1a65
--- /dev/null
+++ b/packages/flutter/example/stocks/lib/stock_row.dart
@@ -0,0 +1,65 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/widgets/ink_well.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/theme.dart';
+
+import 'stock_arrow.dart';
+import 'stock_data.dart';
+
+class StockRow extends Component {
+
+ StockRow({ Stock stock }) : this.stock = stock, super(key: stock.symbol);
+
+ final Stock stock;
+
+ static const double kHeight = 79.0;
+
+ Widget build() {
+ String lastSale = "\$${stock.lastSale.toStringAsFixed(2)}";
+
+ String changeInPrice = "${stock.percentChange.toStringAsFixed(2)}%";
+ if (stock.percentChange > 0) changeInPrice = "+" + changeInPrice;
+
+ List<Widget> children = [
+ new Container(
+ child: new StockArrow(percentChange: stock.percentChange),
+ margin: const EdgeDims.only(right: 5.0)
+ ),
+ new Flexible(
+ child: new Text(stock.symbol),
+ flex: 2
+ ),
+ new Flexible(
+ child: new Text(
+ lastSale,
+ style: const TextStyle(textAlign: TextAlign.right)
+ )
+ ),
+ new Flexible(
+ child: new Text(
+ changeInPrice,
+ style: Theme.of(this).text.caption.copyWith(textAlign: TextAlign.right)
+ )
+ )
+ ];
+
+ // TODO(hansmuller): An explicit |height| shouldn't be needed
+ return new InkWell(
+ child: new Container(
+ padding: const EdgeDims(16.0, 16.0, 20.0, 16.0),
+ height: kHeight,
+ decoration: new BoxDecoration(
+ border: new Border(
+ bottom: new BorderSide(color: Theme.of(this).dividerColor)
+ )
+ ),
+ child: new Flex(children)
+ )
+ );
+ }
+}
diff --git a/packages/flutter/example/stocks/lib/stock_settings.dart b/packages/flutter/example/stocks/lib/stock_settings.dart
new file mode 100644
index 0000000..a49047c
--- /dev/null
+++ b/packages/flutter/example/stocks/lib/stock_settings.dart
@@ -0,0 +1,148 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/checkbox.dart';
+import 'package:sky/widgets/dialog.dart';
+import 'package:sky/widgets/drawer_item.dart';
+import 'package:sky/widgets/flat_button.dart';
+import 'package:sky/widgets/icon_button.dart';
+import 'package:sky/widgets/material.dart';
+import 'package:sky/widgets/navigator.dart';
+import 'package:sky/widgets/scaffold.dart';
+import 'package:sky/widgets/scrollable_viewport.dart';
+import 'package:sky/widgets/switch.dart';
+import 'package:sky/widgets/tool_bar.dart';
+
+import 'stock_types.dart';
+
+typedef void SettingsUpdater({
+ StockMode optimism,
+ BackupMode backup
+});
+
+class StockSettings extends StatefulComponent {
+
+ StockSettings(this.navigator, this.optimism, this.backup, this.updater);
+
+ Navigator navigator;
+ StockMode optimism;
+ BackupMode backup;
+ SettingsUpdater updater;
+
+ bool showModeDialog = false;
+
+ void syncFields(StockSettings source) {
+ navigator = source.navigator;
+ optimism = source.optimism;
+ backup = source.backup;
+ updater = source.updater;
+ }
+
+ void _handleOptimismChanged(bool value) {
+ setState(() {
+ optimism = value ? StockMode.optimistic : StockMode.pessimistic;
+ });
+ sendUpdates();
+ }
+
+ void _handleBackupChanged(bool value) {
+ setState(() {
+ backup = value ? BackupMode.enabled : BackupMode.disabled;
+ });
+ sendUpdates();
+ }
+
+ void _confirmOptimismChange() {
+ switch (optimism) {
+ case StockMode.optimistic:
+ _handleOptimismChanged(false);
+ break;
+ case StockMode.pessimistic:
+ showModeDialog = true;
+ navigator.pushState("/settings/confirm", (_) {
+ showModeDialog = false;
+ });
+ break;
+ }
+ }
+
+ void sendUpdates() {
+ if (updater != null)
+ updater(
+ optimism: optimism,
+ backup: backup
+ );
+ }
+
+ Widget buildToolBar() {
+ return new ToolBar(
+ left: new IconButton(
+ icon: 'navigation/arrow_back',
+ onPressed: navigator.pop),
+ center: new Text('Settings')
+ );
+ }
+
+ Widget buildSettingsPane() {
+ // TODO(ianh): Once we have the gesture API hooked up, fix https://github.com/domokit/mojo/issues/281
+ // (whereby tapping the widgets below causes both the widget and the menu item to fire their callbacks)
+ return new Material(
+ type: MaterialType.canvas,
+ child: new ScrollableViewport(
+ child: new Container(
+ padding: const EdgeDims.symmetric(vertical: 20.0),
+ child: new Block([
+ new DrawerItem(
+ icon: 'action/thumb_up',
+ onPressed: () => _confirmOptimismChange(),
+ children: [
+ new Flexible(child: new Text('Everything is awesome')),
+ new Checkbox(value: optimism == StockMode.optimistic, onChanged: _handleOptimismChanged)
+ ]
+ ),
+ new DrawerItem(
+ icon: 'action/backup',
+ onPressed: () { _handleBackupChanged(!(backup == BackupMode.enabled)); },
+ children: [
+ new Flexible(child: new Text('Back up stock list to the cloud')),
+ new Switch(value: backup == BackupMode.enabled, onChanged: _handleBackupChanged)
+ ]
+ ),
+ ])
+ )
+ )
+ );
+ }
+
+ Widget build() {
+ List<Widget> layers = [
+ new Scaffold(
+ toolbar: buildToolBar(),
+ body: buildSettingsPane()
+ )
+ ];
+ if (showModeDialog) {
+ layers.add(new Dialog(
+ title: new Text("Change mode?"),
+ content: new Text("Optimistic mode means everything is awesome. Are you sure you can handle that?"),
+ onDismiss: navigator.pop,
+ actions: [
+ new FlatButton(
+ child: new Text('NO THANKS'),
+ onPressed: navigator.pop
+ ),
+ new FlatButton(
+ child: new Text('AGREE'),
+ onPressed: () {
+ _handleOptimismChanged(true);
+ navigator.pop();
+ }
+ ),
+ ]
+ ));
+ }
+ return new Stack(layers);
+ }
+}
diff --git a/packages/flutter/example/stocks/lib/stock_types.dart b/packages/flutter/example/stocks/lib/stock_types.dart
new file mode 100644
index 0000000..3fb718c
--- /dev/null
+++ b/packages/flutter/example/stocks/lib/stock_types.dart
@@ -0,0 +1,6 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+enum StockMode { optimistic, pessimistic }
+enum BackupMode { enabled, disabled }
diff --git a/packages/flutter/example/stocks/sky.yaml b/packages/flutter/example/stocks/sky.yaml
new file mode 100644
index 0000000..7e3bf1d
--- /dev/null
+++ b/packages/flutter/example/stocks/sky.yaml
@@ -0,0 +1,12 @@
+material-design-icons:
+ - name: action/account_balance
+ - name: action/assessment
+ - name: action/help
+ - name: action/search
+ - name: action/settings
+ - name: action/thumb_down
+ - name: action/thumb_up
+ - name: content/add
+ - name: navigation/arrow_back
+ - name: navigation/menu
+ - name: navigation/more_vert
diff --git a/packages/flutter/example/widgets/BUILD.gn b/packages/flutter/example/widgets/BUILD.gn
new file mode 100644
index 0000000..2de2c05
--- /dev/null
+++ b/packages/flutter/example/widgets/BUILD.gn
@@ -0,0 +1,27 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import("//sky/build/skyx.gni")
+
+skyx("sector") {
+ main_dart = "sector.dart"
+}
+
+skyx("piano") {
+ main_dart = "piano.dart"
+}
+
+skyx("cards") {
+ main_dart = "card_collection.dart"
+}
+
+group("widgets") {
+ testonly = true
+
+ deps = [
+ ":cards",
+ ":piano",
+ ":sector",
+ ]
+}
diff --git a/packages/flutter/example/widgets/block_viewport.dart b/packages/flutter/example/widgets/block_viewport.dart
new file mode 100644
index 0000000..6db32ff
--- /dev/null
+++ b/packages/flutter/example/widgets/block_viewport.dart
@@ -0,0 +1,136 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/block_viewport.dart';
+import 'package:sky/widgets/material.dart';
+import 'package:sky/widgets/raised_button.dart';
+import 'package:sky/widgets/scaffold.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/tool_bar.dart';
+import 'package:sky/widgets/widget.dart';
+
+class BlockViewportApp extends App {
+
+ List<double> lengths = <double>[];
+ double offset = 0.0;
+
+ static const double kMaxLength = 100.0;
+
+ static math.Random rand = new math.Random();
+
+ void addBox() {
+ lengths.add(rand.nextDouble() * kMaxLength);
+ updateEnabledState();
+ }
+
+ void removeBox(int index) {
+ lengths.removeAt(index);
+ updateEnabledState();
+ }
+
+ void goUp() {
+ offset -= 9.9;
+ updateEnabledState();
+ }
+
+ void goDown() {
+ offset += 20.45;
+ updateEnabledState();
+ }
+
+ bool enabledDown = true;
+ bool enabledUp = true;
+ bool enabledAdd = true;
+ bool enabledRemove = false;
+ void updateEnabledState() {
+ setState(() {
+ enabledUp = offset > -100.0;
+ enabledDown = offset < lengths.fold(0.0, (double result, double len) => result + len) + 100.0;
+ enabledAdd = true;
+ enabledRemove = lengths.length > 0;
+ });
+ }
+
+ Widget build() {
+ return new Theme(
+ data: new ThemeData.light(),
+ child: new Scaffold(
+ toolbar: new ToolBar(
+ center: new Text('Block Viewport Demo')),
+ body: new Material(
+ type: MaterialType.canvas,
+ child: new Flex([
+ new Container(
+ padding: new EdgeDims.symmetric(horizontal: 8.0, vertical: 25.0),
+ child: new Flex([
+ new RaisedButton(
+ enabled: enabledAdd,
+ child: new Text('ADD'),
+ onPressed: addBox
+ ),
+ new RaisedButton(
+ enabled: enabledUp,
+ child: new Text('UP'),
+ onPressed: goUp
+ ),
+ new RaisedButton(
+ enabled: enabledDown,
+ child: new Text('DOWN'),
+ onPressed: goDown
+ )
+ ],
+ justifyContent: FlexJustifyContent.spaceAround
+ )
+ ),
+ new Flexible(
+ child: new Container(
+ margin: new EdgeDims.all(8.0),
+ decoration: new BoxDecoration(
+ border: new Border.all(new BorderSide(color: new Color(0xFF000000)))
+ ),
+ padding: new EdgeDims.all(16.0),
+ child: new BlockViewport(
+ builder: builder,
+ startOffset: offset,
+ token: lengths.length
+ )
+ )
+ ),
+ ],
+ direction: FlexDirection.vertical,
+ justifyContent: FlexJustifyContent.spaceBetween
+ )
+ )
+ )
+ );
+ }
+
+ Widget builder(int index) {
+ if (index >= lengths.length)
+ return null;
+ return new Listener(
+ key: lengths[index].toString(),
+ child: new Container(
+ decoration: new BoxDecoration(
+ backgroundColor: new Color((0xFF000000 + 0xFFFFFF * lengths[index] / kMaxLength).round())
+ ),
+ height: lengths[index] + 12.0
+ ),
+ onGestureTap: (_) {
+ removeBox(index);
+ }
+ );
+ }
+
+}
+
+void main() {
+ runApp(new BlockViewportApp());
+ // scheduler.addPersistentFrameCallback((_) {
+ // SkyBinding.instance.debugDumpRenderTree();
+ // });
+}
diff --git a/packages/flutter/example/widgets/card_collection.dart b/packages/flutter/example/widgets/card_collection.dart
new file mode 100644
index 0000000..a53369d
--- /dev/null
+++ b/packages/flutter/example/widgets/card_collection.dart
@@ -0,0 +1,95 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/base/lerp.dart';
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/theme/colors.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/card.dart';
+import 'package:sky/widgets/dismissable.dart';
+import 'package:sky/widgets/scaffold.dart';
+import 'package:sky/widgets/variable_height_scrollable.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/tool_bar.dart';
+import 'package:sky/widgets/widget.dart';
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/widgets/task_description.dart';
+
+
+class CardCollectionApp extends App {
+
+ final TextStyle cardLabelStyle =
+ new TextStyle(color: white, fontSize: 18.0, fontWeight: bold);
+
+ final List<double> cardHeights = [
+ 48.0, 64.0, 82.0, 46.0, 60.0, 55.0, 84.0, 96.0, 50.0,
+ 48.0, 64.0, 82.0, 46.0, 60.0, 55.0, 84.0, 96.0, 50.0,
+ 48.0, 64.0, 82.0, 46.0, 60.0, 55.0, 84.0, 96.0, 50.0,
+ 48.0, 64.0, 82.0, 46.0, 60.0, 55.0, 84.0, 96.0, 50.0
+ ];
+
+ List<int> visibleCardIndices;
+
+ void initState() {
+ visibleCardIndices = new List.generate(cardHeights.length, (i) => i);
+ super.initState();
+ }
+
+ void dismissCard(int cardIndex) {
+ setState(() {
+ visibleCardIndices.remove(cardIndex);
+ });
+ }
+
+ Widget _builder(int index) {
+ if (index >= visibleCardIndices.length)
+ return null;
+
+ int cardIndex = visibleCardIndices[index];
+ Color color = lerpColor(Red[500], Blue[500], cardIndex / cardHeights.length);
+ Widget label = new Text("Item ${cardIndex}", style: cardLabelStyle);
+ return new Dismissable(
+ key: cardIndex.toString(),
+ onDismissed: () { dismissCard(cardIndex); },
+ child: new Card(
+ color: color,
+ child: new Container(
+ height: cardHeights[cardIndex],
+ padding: const EdgeDims.all(8.0),
+ child: new Center(child: label)
+ )
+ )
+ );
+ }
+
+ Widget build() {
+ Widget cardCollection = new Container(
+ padding: const EdgeDims.symmetric(vertical: 12.0, horizontal: 8.0),
+ decoration: new BoxDecoration(backgroundColor: Theme.of(this).primarySwatch[50]),
+ child: new VariableHeightScrollable(
+ builder: _builder,
+ token: visibleCardIndices.length
+ )
+ );
+
+ return new Theme(
+ data: new ThemeData(
+ brightness: ThemeBrightness.light,
+ primarySwatch: colors.Blue,
+ accentColor: colors.RedAccent[200]
+ ),
+ child: new TaskDescription(
+ label: 'Cards',
+ child: new Scaffold(
+ toolbar: new ToolBar(center: new Text('Swipe Away')),
+ body: cardCollection
+ )
+ )
+ );
+ }
+}
+
+void main() {
+ runApp(new CardCollectionApp());
+}
diff --git a/packages/flutter/example/widgets/container.dart b/packages/flutter/example/widgets/container.dart
new file mode 100644
index 0000000..9ebea3a
--- /dev/null
+++ b/packages/flutter/example/widgets/container.dart
@@ -0,0 +1,51 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/widgets/raised_button.dart';
+import 'package:sky/widgets/basic.dart';
+
+class ContainerApp extends App {
+ Widget build() {
+ return new Flex([
+ new Container(
+ padding: new EdgeDims.all(10.0),
+ margin: new EdgeDims.all(10.0),
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFFCCCCCC)),
+ child: new NetworkImage(
+ src: "https://www.dartlang.org/logos/dart-logo.png",
+ size: new Size(300.0, 300.0)
+ )
+ ),
+ new Container(
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFFFFFF00)),
+ padding: new EdgeDims.symmetric(horizontal: 50.0, vertical: 75.0),
+ child: new Flex([
+ new RaisedButton(
+ child: new Text('PRESS ME'),
+ onPressed: () => print("Hello World")
+ ),
+ new RaisedButton(
+ child: new Text('DISABLED'),
+ onPressed: () => print("Hello World"),
+ enabled: false
+ )
+ ])
+ ),
+ new Flexible(
+ child: new Container(
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFF00FFFF))
+ )
+ ),
+ ],
+ direction: FlexDirection.vertical,
+ justifyContent: FlexJustifyContent.spaceBetween
+ );
+ }
+}
+
+void main() {
+ runApp(new ContainerApp());
+}
diff --git a/packages/flutter/example/widgets/navigation.dart b/packages/flutter/example/widgets/navigation.dart
new file mode 100644
index 0000000..82a9b35
--- /dev/null
+++ b/packages/flutter/example/widgets/navigation.dart
@@ -0,0 +1,72 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/navigator.dart';
+import 'package:sky/widgets/raised_button.dart';
+
+List<Route> routes = [
+ new Route(
+ name: 'home',
+ builder: (navigator, route) => new Container(
+ padding: const EdgeDims.all(20.0),
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFFCCCCCC)),
+ child: new Block([
+ new Text("You are at home"),
+ new RaisedButton(
+ child: new Text('GO SHOPPING'),
+ onPressed: () => navigator.pushNamed('shopping')
+ ),
+ new RaisedButton(
+ child: new Text('START ADVENTURE'),
+ onPressed: () => navigator.pushNamed('adventure')
+ )
+ ])
+ )
+ ),
+ new Route(
+ name: 'shopping',
+ builder: (navigator, route) => new Container(
+ padding: const EdgeDims.all(20.0),
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFFBF5FFF)),
+ child: new Block([
+ new Text("Village Shop"),
+ new RaisedButton(
+ child: new Text('RETURN HOME'),
+ onPressed: () => navigator.pop()
+ ),
+ new RaisedButton(
+ child: new Text('GO TO DUNGEON'),
+ onPressed: () => navigator.push(routes[2])
+ )
+ ])
+ )
+ ),
+ new Route(
+ name: 'adventure',
+ builder: (navigator, route) => new Container(
+ padding: const EdgeDims.all(20.0),
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFFDC143C)),
+ child: new Block([
+ new Text("Monster's Lair"),
+ new RaisedButton(
+ child: new Text('NO WAIT! GO BACK!'),
+ onPressed: () => navigator.pop()
+ )
+ ])
+ )
+ )
+];
+
+class NavigationExampleApp extends App {
+ NavigationState _navState = new NavigationState(routes);
+
+ Widget build() {
+ return new Flex([new Navigator(_navState)]);
+ }
+}
+
+void main() {
+ runApp(new NavigationExampleApp());
+}
diff --git a/packages/flutter/example/widgets/piano.dart b/packages/flutter/example/widgets/piano.dart
new file mode 100644
index 0000000..c976d4a
--- /dev/null
+++ b/packages/flutter/example/widgets/piano.dart
@@ -0,0 +1,100 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:mojom/media/media.mojom.dart';
+import 'package:mojom/mojo/url_response.mojom.dart';
+import 'package:sky/mojo/net/fetch.dart';
+import 'package:sky/mojo/shell.dart' as shell;
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/widgets/basic.dart';
+
+// All of these sounds are marked as public domain at soundbible.
+const String chimes = "http://soundbible.com/grab.php?id=2030&type=wav";
+const String chainsaw = "http://soundbible.com/grab.php?id=1391&type=wav";
+const String stag = "http://soundbible.com/grab.php?id=2073&type=wav";
+const String frogs = "http://soundbible.com/grab.php?id=2033&type=wav";
+const String rattle = "http://soundbible.com/grab.php?id=2037&type=wav";
+const String iLoveYou = "http://soundbible.com/grab.php?id=2045&type=wav";
+
+class Key {
+ Key(this.color, this.soundUrl);
+
+ final Color color;
+ final String soundUrl;
+ MediaPlayerProxy player;
+
+ void down() {
+ if (player == null)
+ return;
+ player.ptr.seekTo(0);
+ player.ptr.start();
+ }
+
+ void up() {
+ if (player == null)
+ return;
+ player.ptr.pause();
+ }
+}
+
+class PianoApp extends App {
+ final List<Key> keys = [
+ new Key(colors.Red[500], chimes),
+ new Key(colors.Orange[500], chainsaw),
+ new Key(colors.Yellow[500], stag),
+ new Key(colors.Green[500], frogs),
+ new Key(colors.Blue[500], rattle),
+ new Key(colors.Purple[500], iLoveYou),
+ ];
+
+ PianoApp() {
+ loadSounds();
+ }
+
+ loadSounds() async {
+ MediaServiceProxy mediaService = new MediaServiceProxy.unbound();
+ shell.requestService(null, mediaService);
+
+ for (Key key in keys) {
+ MediaPlayerProxy player = new MediaPlayerProxy.unbound();
+ mediaService.ptr.createPlayer(player);
+
+ UrlResponse response = await fetchUrl(key.soundUrl);
+ await player.ptr.prepare(response.body);
+ key.player = player;
+ }
+ mediaService.close();
+ // Are we leaking all the player connections?
+ scheduleBuild();
+ }
+
+ Widget build() {
+ List<Widget> children = [];
+ for (Key key in keys) {
+ children.add(
+ new Listener(
+ child: new Flexible(
+ child: new Container(
+ decoration: new BoxDecoration(backgroundColor: key.color)
+ )
+ ),
+ onPointerCancel: (_) => key.up(),
+ onPointerDown: (_) => key.down(),
+ onPointerUp: (_) => key.up()
+ )
+ );
+ }
+
+ return new Flex(
+ children,
+ direction: FlexDirection.vertical
+ );
+ }
+}
+
+void main() {
+ runApp(new PianoApp());
+}
diff --git a/packages/flutter/example/widgets/sector.dart b/packages/flutter/example/widgets/sector.dart
new file mode 100644
index 0000000..8a5948d
--- /dev/null
+++ b/packages/flutter/example/widgets/sector.dart
@@ -0,0 +1,148 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/material.dart';
+import 'package:sky/widgets/raised_button.dart';
+import 'package:sky/widgets/scaffold.dart';
+import 'package:sky/widgets/task_description.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/tool_bar.dart';
+import 'package:sky/widgets/widget.dart';
+
+import '../rendering/sector_layout.dart';
+
+RenderBox initCircle() {
+ return new RenderBoxToRenderSectorAdapter(
+ innerRadius: 25.0,
+ child: new RenderSectorRing(padding: 0.0)
+ );
+}
+
+class SectorApp extends App {
+
+ RenderBoxToRenderSectorAdapter sectors = initCircle();
+ math.Random rand = new math.Random(1);
+
+ void addSector() {
+ double deltaTheta;
+ var ring = (sectors.child as RenderSectorRing);
+ SectorDimensions currentSize = ring.getIntrinsicDimensions(const SectorConstraints(), ring.deltaRadius);
+ if (currentSize.deltaTheta >= kTwoPi - (math.PI * 0.2 + 0.05))
+ deltaTheta = kTwoPi - currentSize.deltaTheta;
+ else
+ deltaTheta = math.PI * rand.nextDouble() / 5.0 + 0.05;
+ Color color = new Color(((0xFF << 24) + rand.nextInt(0xFFFFFF)) | 0x808080);
+ ring.add(new RenderSolidColor(color, desiredDeltaTheta: deltaTheta));
+ updateEnabledState();
+ }
+
+ void removeSector() {
+ (sectors.child as RenderSectorRing).remove((sectors.child as RenderSectorRing).lastChild);
+ updateEnabledState();
+ }
+
+ static RenderBox initSector(Color color) {
+ RenderSectorRing ring = new RenderSectorRing(padding: 1.0);
+ ring.add(new RenderSolidColor(const Color(0xFF909090), desiredDeltaTheta: kTwoPi * 0.15));
+ ring.add(new RenderSolidColor(const Color(0xFF909090), desiredDeltaTheta: kTwoPi * 0.15));
+ ring.add(new RenderSolidColor(color, desiredDeltaTheta: kTwoPi * 0.2));
+ return new RenderBoxToRenderSectorAdapter(
+ innerRadius: 5.0,
+ child: ring
+ );
+ }
+ RenderBoxToRenderSectorAdapter sectorAddIcon = initSector(const Color(0xFF00DD00));
+ RenderBoxToRenderSectorAdapter sectorRemoveIcon = initSector(const Color(0xFFDD0000));
+
+ bool enabledAdd = true;
+ bool enabledRemove = false;
+ void updateEnabledState() {
+ setState(() {
+ var ring = (sectors.child as RenderSectorRing);
+ SectorDimensions currentSize = ring.getIntrinsicDimensions(const SectorConstraints(), ring.deltaRadius);
+ enabledAdd = currentSize.deltaTheta < kTwoPi;
+ enabledRemove = ring.firstChild != null;
+ });
+ }
+
+ Widget buildBody() {
+ return new Material(
+ type: MaterialType.canvas,
+ child: new Flex([
+ new Container(
+ padding: new EdgeDims.symmetric(horizontal: 8.0, vertical: 25.0),
+ child: new Flex([
+ new RaisedButton(
+ enabled: enabledAdd,
+ child: new ShrinkWrapWidth(
+ child: new Flex([
+ new Container(
+ padding: new EdgeDims.all(4.0),
+ margin: new EdgeDims.only(right: 10.0),
+ child: new WidgetToRenderBoxAdapter(sectorAddIcon)
+ ),
+ new Text('ADD SECTOR'),
+ ])
+ ),
+ onPressed: addSector
+ ),
+ new RaisedButton(
+ enabled: enabledRemove,
+ child: new ShrinkWrapWidth(
+ child: new Flex([
+ new Container(
+ padding: new EdgeDims.all(4.0),
+ margin: new EdgeDims.only(right: 10.0),
+ child: new WidgetToRenderBoxAdapter(sectorRemoveIcon)
+ ),
+ new Text('REMOVE SECTOR'),
+ ])
+ ),
+ onPressed: removeSector
+ )
+ ],
+ justifyContent: FlexJustifyContent.spaceAround
+ )
+ ),
+ new Flexible(
+ child: new Container(
+ margin: new EdgeDims.all(8.0),
+ decoration: new BoxDecoration(
+ border: new Border.all(new BorderSide(color: new Color(0xFF000000)))
+ ),
+ padding: new EdgeDims.all(8.0),
+ child: new WidgetToRenderBoxAdapter(sectors)
+ )
+ ),
+ ],
+ direction: FlexDirection.vertical,
+ justifyContent: FlexJustifyContent.spaceBetween
+ )
+ );
+ }
+
+ Widget build() {
+ return new Theme(
+ data: new ThemeData.light(),
+ child: new TaskDescription(
+ label: 'Sector Layout',
+ child: new Scaffold(
+ toolbar: new ToolBar(
+ center: new Text('Sector Layout in a Widget Tree')
+ ),
+ body: buildBody()
+ )
+ )
+ );
+ }
+}
+
+void main() {
+ runApp(new SectorApp());
+}
diff --git a/packages/flutter/example/widgets/spinning_mixed.dart b/packages/flutter/example/widgets/spinning_mixed.dart
new file mode 100644
index 0000000..c8848ea
--- /dev/null
+++ b/packages/flutter/example/widgets/spinning_mixed.dart
@@ -0,0 +1,97 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/base/scheduler.dart' as scheduler;
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/rendering/sky_binding.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/raised_button.dart';
+import 'package:sky/widgets/widget.dart';
+import 'package:vector_math/vector_math.dart';
+
+import '../rendering/solid_color_box.dart';
+
+// Solid colour, RenderObject version
+void addFlexChildSolidColor(RenderFlex parent, sky.Color backgroundColor, { int flex: 0 }) {
+ RenderSolidColorBox child = new RenderSolidColorBox(backgroundColor);
+ parent.add(child);
+ child.parentData.flex = flex;
+}
+
+// Solid colour, Widget version
+class Rectangle extends Component {
+ Rectangle(this.color, { String key }) : super(key: key);
+ final Color color;
+ Widget build() {
+ return new Flexible(
+ child: new Container(
+ decoration: new BoxDecoration(backgroundColor: color)
+ )
+ );
+ }
+}
+
+Widget builder() {
+ return new Flex([
+ new Rectangle(const Color(0xFF00FFFF)),
+ new Container(
+ padding: new EdgeDims.all(10.0),
+ margin: new EdgeDims.all(10.0),
+ decoration: new BoxDecoration(backgroundColor: const Color(0xFFCCCCCC)),
+ child: new RaisedButton(
+ child: new Flex([
+ new NetworkImage(src: "https://www.dartlang.org/logos/dart-logo.png"),
+ new Text('PRESS ME'),
+ ]),
+ onPressed: () => print("Hello World")
+ )
+ ),
+ new Rectangle(const Color(0xFFFFFF00)),
+ ],
+ direction: FlexDirection.vertical,
+ justifyContent: FlexJustifyContent.spaceBetween
+ );
+}
+
+double timeBase;
+RenderTransform transformBox;
+
+void rotate(double timeStamp) {
+ if (timeBase == null)
+ timeBase = timeStamp;
+ double delta = (timeStamp - timeBase) / 1000; // radians
+
+ transformBox.setIdentity();
+ transformBox.translate(transformBox.size.width / 2.0, transformBox.size.height / 2.0);
+ transformBox.rotateZ(delta);
+ transformBox.translate(-transformBox.size.width / 2.0, -transformBox.size.height / 2.0);
+}
+
+void main() {
+ // Because we're going to use Widgets, we want to initialise its
+ // SkyBinding, not use the default one. We don't really need to do
+ // this, because RenderBoxToWidgetAdapter does it for us, but
+ // it's good practice in case we happen to not have a
+ // RenderBoxToWidgetAdapter in our tree at startup, or in case we
+ // want a renderViewOverride.
+ WidgetSkyBinding.initWidgetSkyBinding();
+
+ RenderFlex flexRoot = new RenderFlex(direction: FlexDirection.vertical);
+
+ RenderProxyBox proxy = new RenderProxyBox();
+ new RenderBoxToWidgetAdapter(proxy, builder); // adds itself to proxy
+
+ addFlexChildSolidColor(flexRoot, const sky.Color(0xFFFF00FF), flex: 1);
+ flexRoot.add(proxy);
+ addFlexChildSolidColor(flexRoot, const sky.Color(0xFF0000FF), flex: 1);
+
+ transformBox = new RenderTransform(child: flexRoot, transform: new Matrix4.identity());
+ RenderPadding root = new RenderPadding(padding: new EdgeDims.all(80.0), child: transformBox);
+
+ SkyBinding.instance.root = root;
+ scheduler.addPersistentFrameCallback(rotate);
+}
diff --git a/packages/flutter/example/widgets/styled_text.dart b/packages/flutter/example/widgets/styled_text.dart
new file mode 100644
index 0000000..bcddf04
--- /dev/null
+++ b/packages/flutter/example/widgets/styled_text.dart
@@ -0,0 +1,124 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/material.dart';
+import 'package:sky/widgets/scaffold.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/tool_bar.dart';
+import 'package:sky/widgets/widget.dart';
+
+
+class StyledTextApp extends App {
+
+ StyledTextApp() {
+ toText = toStyledText;
+ nameLines = dialogText
+ .split('\n')
+ .map((String line) => line.split(':'))
+ .toList();
+ }
+
+ Function toText;
+
+ // From https://en.wikiquote.org/wiki/2001:_A_Space_Odyssey_(film)
+ final String dialogText = '''
+Dave: Open the pod bay doors, please, HAL. Open the pod bay doors, please, HAL. Hello, HAL. Do you read me? Hello, HAL. Do you read me? Do you read me, HAL?
+HAL: Affirmative, Dave. I read you.
+Dave: Open the pod bay doors, HAL.
+HAL: I'm sorry, Dave. I'm afraid I can't do that.
+Dave: What's the problem?
+HAL: I think you know what the problem is just as well as I do.
+Dave: What are you talking about, HAL?
+HAL: This mission is too important for me to allow you to jeopardize it.''';
+
+ // [["Dave", "Open the pod bay..."] ...]
+ List<List<String>> nameLines;
+
+ final TextStyle daveStyle = new TextStyle(color: colors.Indigo[400], height: 1.8);
+ final TextStyle halStyle = new TextStyle(color: colors.Red[400], fontFamily: "monospace");
+ final TextStyle boldStyle = const TextStyle(fontWeight: bold);
+ final TextStyle underlineStyle = const TextStyle(
+ decoration: underline,
+ decorationColor: const Color(0xFF000000),
+ decorationStyle: TextDecorationStyle.wavy
+ );
+
+ Component toStyledText(String name, String text) {
+ TextStyle lineStyle = (name == "Dave") ? daveStyle : halStyle;
+ return new StyledText(
+ key: text,
+ elements: [lineStyle, [boldStyle, [underlineStyle, name], ":"], text]
+ );
+ }
+
+ Component toPlainText(String name, String text) => new Text(name + ":" + text);
+
+ Component createSeparator() {
+ return new Container(
+ constraints: const BoxConstraints.expandWidth(maxHeight: 0.0),
+ margin: const EdgeDims.symmetric(vertical: 10.0, horizontal: 64.0),
+ decoration: const BoxDecoration(
+ border: const Border(
+ bottom: const BorderSide(color: const Color.fromARGB(24, 0, 0, 0))
+ )
+ )
+ );
+ }
+
+ void toggleToTextFunction(_) {
+ setState(() {
+ toText = (toText == toPlainText) ? toStyledText : toPlainText;
+ });
+ }
+
+ Widget build() {
+ List<Component> lines = nameLines
+ .map((nameAndText) => Function.apply(toText, nameAndText))
+ .toList();
+
+ List<Component> children = [];
+ for (Component line in lines) {
+ children.add(line);
+ if (line != lines.last) {
+ children.add(createSeparator());
+ }
+ }
+
+ Container body = new Container(
+ padding: new EdgeDims.symmetric(horizontal: 8.0),
+ child: new Flex(children,
+ direction: FlexDirection.vertical,
+ justifyContent: FlexJustifyContent.center,
+ alignItems: FlexAlignItems.start
+ )
+ );
+
+ Listener interactiveBody = new Listener(
+ child: body,
+ onPointerDown: toggleToTextFunction
+ );
+
+ return new Theme(
+ data: new ThemeData.light(),
+ child: new Scaffold(
+ body: new Material(
+ color: colors.Grey[50],
+ child: interactiveBody
+ ),
+ toolbar: new ToolBar(
+ center: new Text('Hal and Dave')
+ )
+ )
+ );
+ }
+}
+
+void main() {
+ runApp(new StyledTextApp());
+}
diff --git a/packages/flutter/example/widgets/tabs.dart b/packages/flutter/example/widgets/tabs.dart
new file mode 100644
index 0000000..00b4521
--- /dev/null
+++ b/packages/flutter/example/widgets/tabs.dart
@@ -0,0 +1,143 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/theme/typography.dart' as typography;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/card.dart';
+import 'package:sky/widgets/scaffold.dart';
+import 'package:sky/widgets/tabs.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/tool_bar.dart';
+import 'package:sky/widgets/widget.dart';
+
+class TabbedNavigatorApp extends App {
+ // The index of the selected tab for each of the TabNavigators constructed below.
+ List<int> selectedIndices = new List<int>.filled(5, 0);
+
+ TabNavigator _buildTabNavigator(int n, List<TabNavigatorView> views, {scrollable: false}) {
+ return new TabNavigator(
+ views: views,
+ selectedIndex: selectedIndices[n],
+ scrollable: scrollable,
+ onChanged: (tabIndex) {
+ setState(() { selectedIndices[n] = tabIndex; } );
+ }
+ );
+ }
+
+ Widget _buildContent(String label) {
+ return new Center(
+ child: new Text(label, style: const TextStyle(fontSize: 48.0, fontWeight: FontWeight.w800))
+ );
+ }
+
+ TabNavigator _buildTextLabelsTabNavigator(int n) {
+ Iterable<TabNavigatorView> views = ["ONE", "TWO", "FREE", "FOUR"]
+ .map((text) {
+ return new TabNavigatorView(
+ label: new TabLabel(text: text),
+ builder: () => _buildContent(text)
+ );
+ });
+ return _buildTabNavigator(n, views.toList());
+ }
+
+ TabNavigator _buildIconLabelsTabNavigator(int n) {
+ Iterable<TabNavigatorView> views = ["event", "home", "android", "alarm", "face", "language"]
+ .map((icon_name) {
+ return new TabNavigatorView(
+ label: new TabLabel(icon: "action/${icon_name}"),
+ builder: () => _buildContent(icon_name)
+ );
+ });
+ return _buildTabNavigator(n, views.toList());
+ }
+
+ TabNavigator _buildTextAndIconLabelsTabNavigator(int n) {
+ List<TabNavigatorView> views = <TabNavigatorView>[
+ new TabNavigatorView(
+ label: const TabLabel(text: 'STOCKS', icon: 'action/list'),
+ builder: () => _buildContent("Stocks")
+ ),
+ new TabNavigatorView(
+ label: const TabLabel(text: 'PORTFOLIO', icon: 'action/account_circle'),
+ builder: () => _buildContent("Portfolio")
+ ),
+ new TabNavigatorView(
+ label: const TabLabel(text: 'SUMMARY', icon: 'action/assessment'),
+ builder: () => _buildContent("Summary")
+ )
+ ];
+ return _buildTabNavigator(n, views);
+ }
+
+ TabNavigator _buildScrollableTabNavigator(int n) {
+ Iterable<TabNavigatorView> views = [
+ "MIN WIDTH",
+ "THIS TAB LABEL IS SO WIDE THAT IT OCCUPIES TWO LINES",
+ "THIS TAB IS PRETTY WIDE TOO",
+ "MORE",
+ "TABS",
+ "TO",
+ "STRETCH",
+ "OUT",
+ "THE",
+ "TAB BAR"
+ ]
+ .map((text) {
+ return new TabNavigatorView(
+ label: new TabLabel(text: text),
+ builder: () => _buildContent(text)
+ );
+ });
+ return _buildTabNavigator(n, views.toList(), scrollable: true);
+ }
+
+
+ Container _buildCard(TabNavigator tabNavigator) {
+ return new Container(
+ child: new Card(child: new Padding(child: tabNavigator, padding: const EdgeDims.all(8.0))),
+ padding: const EdgeDims.all(12.0),
+ decoration: new BoxDecoration(backgroundColor: Theme.of(this).primarySwatch[50])
+ );
+ }
+
+ Widget build() {
+ List<TabNavigatorView> views = <TabNavigatorView>[
+ new TabNavigatorView(
+ label: const TabLabel(text: 'TEXT'),
+ builder: () => _buildCard(_buildTextLabelsTabNavigator(0))
+ ),
+ new TabNavigatorView(
+ label: const TabLabel(text: 'ICONS'),
+ builder: () => _buildCard(_buildIconLabelsTabNavigator(1))
+ ),
+ new TabNavigatorView(
+ label: const TabLabel(text: 'BOTH'),
+ builder: () => _buildCard(_buildTextAndIconLabelsTabNavigator(2))
+ ),
+ new TabNavigatorView(
+ label: const TabLabel(text: 'SCROLL'),
+ builder: () => _buildCard(_buildScrollableTabNavigator(3))
+ )
+ ];
+
+ TabNavigator tabNavigator = _buildTabNavigator(4, views);
+ assert(selectedIndices.length == 5);
+
+ ToolBar toolbar = new ToolBar(
+ center: new Text('Tabbed Navigator', style: typography.white.title)
+ );
+
+ return new Scaffold(
+ toolbar: toolbar,
+ body: tabNavigator
+ );
+ }
+}
+
+void main() {
+ runApp(new TabbedNavigatorApp());
+}
diff --git a/packages/flutter/lib/README.md b/packages/flutter/lib/README.md
new file mode 100644
index 0000000..160ed2f
--- /dev/null
+++ b/packages/flutter/lib/README.md
@@ -0,0 +1,78 @@
+SKY SDK
+========
+
+Sky and Sky's SDK are designed as layered frameworks, where each layer
+depends on the ones below it but could be replaced wholesale.
+
+The bottom-most layer is the Sky Platform, which is exposed to Dart
+code as [various ```dart:``` packages](https://api.dartlang.org/),
+including ```dart:sky```.
+
+The [base/](base/) directory contains libraries that extend these core
+APIs to provide base classes for tree structures
+([base/node.dart](base/node.dart)), hit testing
+([base/hit_test.dart](base/hit_test.dart)), debugging
+([base/debug.dart](base/debug.dart)), and task scheduling
+([base/scheduler.dart](base/scheduler.dart)).
+
+Above this are the files in the [painting/](painting/) directory,
+which provide APIs related to drawing graphics, and in the
+[animation/](animation/) directory, which provide core primitives for
+animating values.
+
+Layout primitives are provided in the next layer, found in the
+[rendering/](rendering/) directory. They use ```dart:sky``` and the
+APIs exposed in painting/ to provide a retained-mode layout and
+rendering model for applications or documents.
+
+Widgets are provided by the files in the [widgets/](widgets/)
+directory, using a reactive framework. They use data given in the
+[theme/](theme/) directory to select styles consistent with Material
+Design.
+
+Text input widgets are layered on this mechanism and can be found in
+the [editing/](editing/) directory.
+
+Alongside the above is the [mojo/](mojo/) directory, which contains
+anything that uses the Mojo IPC mechanism, typically as part of
+wrapping host operating system features. Some of those Host APIs are
+implemented in the host system's preferred language.
+
+Here is a diagram summarising all this:
+
+ +-----------------------------+ ------
+ | YOUR APP |
+ | +--------------------+--+
+ | | editing/ | |
+ | +--+-------------------++ |
+ | | widgets/ (theme/) | |
+ | ++---------------------++ | Dart
+ | | rendering/ | |
+ +-+---------+------------+ |
+ | painting/ | animation/ | |
+ +---------------+--------+ |
+ | base/ | mojo/ |
+ +------------+--+-+----+------+ -------
+ | dart:sky | | | Host |
+ +--------+---+ | | APIs | C++
+ | Skia | Dart | +------+ ObjC
+ +--------+--------+ | Java
+ | Mojo |
+ +-----------------------------+ -------
+ | Host Operating System | C/C++
+ +-----------------------------+ -------
+
+TODO(ianh): document dart:sky and the Host APIs somewhere
+
+Sky Engine API
+--------------
+
+The Sky engine API provides efficient, immutable wrappers
+for common Skia C++ types, notably Color, Point, and Rect.
+Because these wrappers are immutable, they are suitable
+for storage in final member variables of widget classes.
+More complex Skia wrappers such as Paint and RRect are
+mutable, to more closely match the Skia APIs. We recommend
+constructing wrappers for complex Skia classes dynamically
+during the painting phase based on the underlying state of
+the widget.
diff --git a/packages/flutter/lib/animation/README.md b/packages/flutter/lib/animation/README.md
new file mode 100644
index 0000000..3384c45
--- /dev/null
+++ b/packages/flutter/lib/animation/README.md
@@ -0,0 +1,2 @@
+This directory contains animation-related libraries that only depend
+on core Dart libraries and ../base/*.
diff --git a/packages/flutter/lib/animation/animated_simulation.dart b/packages/flutter/lib/animation/animated_simulation.dart
new file mode 100644
index 0000000..f2afb89
--- /dev/null
+++ b/packages/flutter/lib/animation/animated_simulation.dart
@@ -0,0 +1,116 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+
+import 'package:newton/newton.dart';
+import 'package:sky/base/scheduler.dart' as scheduler;
+
+const double _kSecondsPerMillisecond = 1000.0;
+
+class Ticker {
+ Ticker(Function onTick) : _onTick = onTick;
+
+ final Function _onTick;
+
+ Completer _completer;
+ int _animationId;
+
+ Future start() {
+ assert(!isTicking);
+ _completer = new Completer();
+ _scheduleTick();
+ return _completer.future;
+ }
+
+ void stop() {
+ if (!isTicking)
+ return;
+
+ if (_animationId != null) {
+ scheduler.cancelAnimationFrame(_animationId);
+ _animationId = null;
+ }
+
+ Completer localCompleter = _completer;
+ _completer = null;
+
+ // We take the _completer into a local variable so that !isTicking when we
+ // actually complete the future.
+ assert(!isTicking);
+ localCompleter.complete();
+ }
+
+ bool get isTicking => _completer != null;
+
+ void _tick(double timeStamp) {
+ assert(isTicking);
+ assert(_animationId != null);
+ _animationId = null;
+
+ _onTick(timeStamp);
+
+ if (isTicking)
+ _scheduleTick();
+ }
+
+ void _scheduleTick() {
+ assert(isTicking);
+ assert(_animationId == null);
+ _animationId = scheduler.requestAnimationFrame(_tick);
+ }
+}
+
+class AnimatedSimulation {
+
+ AnimatedSimulation(Function onTick) : _onTick = onTick {
+ _ticker = new Ticker(_tick);
+ }
+
+ final Function _onTick;
+ Ticker _ticker;
+
+ Simulation _simulation;
+ double _startTime;
+
+ double _value = 0.0;
+ double get value => _value;
+ void set value(double newValue) {
+ assert(!_ticker.isTicking);
+ _value = newValue;
+ _onTick(_value);
+ }
+
+ Future start(Simulation simulation) {
+ assert(simulation != null);
+ assert(!_ticker.isTicking);
+ _simulation = simulation;
+ _startTime = null;
+ _value = simulation.x(0.0);
+ return _ticker.start();
+ }
+
+ void stop() {
+ _simulation = null;
+ _startTime = null;
+ _ticker.stop();
+ }
+
+ bool get isAnimating => _ticker.isTicking;
+
+ void _tick(double timeStamp) {
+ if (_startTime == null)
+ _startTime = timeStamp;
+
+ double timeInSeconds = (timeStamp - _startTime) / _kSecondsPerMillisecond;
+ _value = _simulation.x(timeInSeconds);
+ final bool isLastTick = _simulation.isDone(timeInSeconds);
+
+ if (isLastTick)
+ stop();
+
+ _onTick(_value);
+ }
+
+}
diff --git a/packages/flutter/lib/animation/animation_performance.dart b/packages/flutter/lib/animation/animation_performance.dart
new file mode 100644
index 0000000..6864861
--- /dev/null
+++ b/packages/flutter/lib/animation/animation_performance.dart
@@ -0,0 +1,148 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:newton/newton.dart';
+import 'package:sky/animation/timeline.dart';
+import 'package:sky/animation/curves.dart';
+
+abstract class AnimatedVariable {
+ void setFraction(double t);
+ String toString();
+}
+
+class Interval {
+ final double start;
+ final double end;
+
+ double adjustTime(double t) {
+ return ((t - start) / (end - start)).clamp(0.0, 1.0);
+ }
+
+ Interval(this.start, this.end) {
+ assert(start >= 0.0);
+ assert(start <= 1.0);
+ assert(end >= 0.0);
+ assert(end <= 1.0);
+ }
+}
+
+class AnimatedType<T extends dynamic> extends AnimatedVariable {
+ AnimatedType(this.begin, { this.end, this.interval, this.curve: linear }) {
+ value = begin;
+ }
+
+ T value;
+ T begin;
+ T end;
+ Interval interval;
+ Curve curve;
+
+ void setFraction(double t) {
+ if (end != null) {
+ double adjustedTime = interval == null ? t : interval.adjustTime(t);
+ if (adjustedTime == 1.0) {
+ value = end;
+ } else {
+ // TODO(mpcomplete): Reverse the timeline and curve.
+ value = begin + (end - begin) * curve.transform(adjustedTime);
+ }
+ }
+ }
+
+ String toString() => 'AnimatedType(begin=$begin, end=$end, value=$value)';
+}
+
+class AnimatedList extends AnimatedVariable {
+ List<AnimatedVariable> variables;
+ Interval interval;
+
+ AnimatedList(this.variables, { this.interval });
+
+ void setFraction(double t) {
+ double adjustedTime = interval == null ? t : interval.adjustTime(t);
+ for (AnimatedVariable variable in variables)
+ variable.setFraction(adjustedTime);
+ }
+
+ String toString() => 'AnimatedList([$variables])';
+}
+
+// This class manages a "performance" - a collection of values that change
+// based on a timeline. For example, a performance may handle an animation
+// of a menu opening by sliding and fading in (changing Y value and opacity)
+// over .5 seconds. The performance can move forwards (present) or backwards
+// (dismiss). A consumer may also take direct control of the timeline by
+// manipulating |progress|, or |fling| the timeline causing a physics-based
+// simulation to take over the progression.
+class AnimationPerformance {
+ AnimationPerformance() {
+ _timeline = new Timeline(_tick);
+ }
+
+ // TODO(mpcomplete): make this a list, or composable somehow.
+ AnimatedVariable variable;
+ // TODO(mpcomplete): duration should be on a director.
+ Duration duration;
+
+ // Advances from 0 to 1. On each tick, we'll update our variable's values.
+ Timeline _timeline;
+ Timeline get timeline => _timeline;
+
+ double get progress => timeline.value;
+ void set progress(double t) {
+ stop();
+ timeline.value = t.clamp(0.0, 1.0);
+ }
+
+ bool get isDismissed => progress == 0.0;
+ bool get isCompleted => progress == 1.0;
+ bool get isAnimating => timeline.isAnimating;
+
+ void play() {
+ _animateTo(1.0);
+ }
+ void reverse() {
+ _animateTo(0.0);
+ }
+
+ void stop() {
+ timeline.stop();
+ }
+
+ // Resume animating in a direction, with the given velocity.
+ // TODO(mpcomplete): Allow user to specify the Simulation.
+ void fling({double velocity: 1.0}) {
+ Simulation simulation =
+ timeline.defaultSpringSimulation(velocity: velocity);
+ timeline.fling(simulation);
+ }
+
+ final List<Function> _listeners = new List<Function>();
+
+ void addListener(Function listener) {
+ _listeners.add(listener);
+ }
+
+ void removeListener(Function listener) {
+ _listeners.remove(listener);
+ }
+
+ void _notifyListeners() {
+ List<Function> localListeners = new List<Function>.from(_listeners);
+ for (Function listener in localListeners)
+ listener();
+ }
+
+ void _animateTo(double target) {
+ double remainingDistance = (target - timeline.value).abs();
+ timeline.stop();
+ if (remainingDistance != 0.0)
+ timeline.animateTo(target, duration: duration * remainingDistance);
+ }
+
+ void _tick(double t) {
+ variable.setFraction(t);
+ _notifyListeners();
+ }
+}
diff --git a/packages/flutter/lib/animation/curves.dart b/packages/flutter/lib/animation/curves.dart
new file mode 100644
index 0000000..8e28576
--- /dev/null
+++ b/packages/flutter/lib/animation/curves.dart
@@ -0,0 +1,72 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+double _evaluateCubic(double a, double b, double m) {
+ // TODO(abarth): Would Math.pow be faster?
+ return 3 * a * (1 - m) * (1 - m) * m + 3 * b * (1 - m) * m * m + m * m * m;
+}
+
+const double _kCubicErrorBound = 0.001;
+
+abstract class Curve {
+ double transform(double t);
+}
+
+class Linear implements Curve {
+ const Linear();
+
+ double transform(double t) {
+ return t;
+ }
+}
+
+class ParabolicFall implements Curve {
+ const ParabolicFall();
+
+ double transform(double t) {
+ return -t*t + 1;
+ }
+}
+
+class ParabolicRise implements Curve {
+ const ParabolicRise();
+
+ double transform(double t) {
+ return -(t-1)*(t-1) + 1;
+ }
+}
+
+class Cubic implements Curve {
+ final double a;
+ final double b;
+ final double c;
+ final double d;
+
+ const Cubic(this.a, this.b, this.c, this.d);
+
+ double transform(double t) {
+ double start = 0.0;
+ double end = 1.0;
+ while (true) {
+ double midpoint = (start + end) / 2;
+ double estimate = _evaluateCubic(a, c, midpoint);
+
+ if ((t - estimate).abs() < _kCubicErrorBound)
+ return _evaluateCubic(b, d, midpoint);
+
+ if (estimate < t)
+ start = midpoint;
+ else
+ end = midpoint;
+ }
+ }
+}
+
+const Linear linear = const Linear();
+const Cubic ease = const Cubic(0.25, 0.1, 0.25, 1.0);
+const Cubic easeIn = const Cubic(0.42, 0.0, 1.0, 1.0);
+const Cubic easeOut = const Cubic(0.0, 0.0, 0.58, 1.0);
+const Cubic easeInOut = const Cubic(0.42, 0.0, 0.58, 1.0);
+const ParabolicRise parabolicRise = const ParabolicRise();
+const ParabolicFall parabolicFall = const ParabolicFall();
diff --git a/packages/flutter/lib/animation/scroll_behavior.dart b/packages/flutter/lib/animation/scroll_behavior.dart
new file mode 100644
index 0000000..b01713c
--- /dev/null
+++ b/packages/flutter/lib/animation/scroll_behavior.dart
@@ -0,0 +1,89 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+
+import 'package:newton/newton.dart';
+
+const double _kSecondsPerMillisecond = 1000.0;
+
+abstract class ScrollBehavior {
+ Simulation release(double position, double velocity) => null;
+
+ // Returns the new scroll offset.
+ double applyCurve(double scrollOffset, double scrollDelta);
+}
+
+class BoundedBehavior extends ScrollBehavior {
+ BoundedBehavior({ double contentsSize: 0.0, double containerSize: 0.0 })
+ : _contentsSize = contentsSize,
+ _containerSize = containerSize;
+
+ double _contentsSize;
+ double get contentsSize => _contentsSize;
+ void set contentsSize (double value) {
+ if (_contentsSize != value) {
+ _contentsSize = value;
+ // TODO(ianh) now what? what if we have a simulation ongoing?
+ }
+ }
+
+ double _containerSize;
+ double get containerSize => _containerSize;
+ void set containerSize (double value) {
+ if (_containerSize != value) {
+ _containerSize = value;
+ // TODO(ianh) now what? what if we have a simulation ongoing?
+ }
+ }
+
+ final double minScrollOffset = 0.0;
+ double get maxScrollOffset => math.max(0.0, _contentsSize - _containerSize);
+
+ double applyCurve(double scrollOffset, double scrollDelta) {
+ return (scrollOffset + scrollDelta).clamp(0.0, maxScrollOffset);
+ }
+}
+
+Simulation createDefaultScrollSimulation(double position, double velocity, double minScrollOffset, double maxScrollOffset) {
+ double velocityPerSecond = velocity * _kSecondsPerMillisecond;
+ SpringDescription spring = new SpringDescription.withDampingRatio(
+ mass: 1.0, springConstant: 170.0, ratio: 1.1);
+ double drag = 0.025;
+ return new ScrollSimulation(position, velocityPerSecond, minScrollOffset, maxScrollOffset, spring, drag);
+}
+
+class FlingBehavior extends BoundedBehavior {
+ FlingBehavior({ double contentsSize: 0.0, double containerSize: 0.0 })
+ : super(contentsSize: contentsSize, containerSize: containerSize);
+
+ Simulation release(double position, double velocity) {
+ return createDefaultScrollSimulation(position, 0.0, minScrollOffset, maxScrollOffset);
+ }
+}
+
+class OverscrollBehavior extends BoundedBehavior {
+ OverscrollBehavior({ double contentsSize: 0.0, double containerSize: 0.0 })
+ : super(contentsSize: contentsSize, containerSize: containerSize);
+
+ Simulation release(double position, double velocity) {
+ return createDefaultScrollSimulation(position, velocity, minScrollOffset, maxScrollOffset);
+ }
+
+ double applyCurve(double scrollOffset, double scrollDelta) {
+ double newScrollOffset = scrollOffset + scrollDelta;
+ // If we're overscrolling, we want move the scroll offset 2x
+ // slower than we would otherwise. Therefore, we "rewind" the
+ // newScrollOffset by half the amount that we moved it above.
+ // Notice that we clamp the "old" value to 0.0 so that we only
+ // reduce the portion of scrollDelta that's applied beyond 0.0. We
+ // do similar things for overscroll in the other direction.
+ if (newScrollOffset < 0.0) {
+ newScrollOffset -= (newScrollOffset - math.min(0.0, scrollOffset)) / 2.0;
+ } else if (newScrollOffset > maxScrollOffset) {
+ newScrollOffset -= (newScrollOffset - math.max(maxScrollOffset, scrollOffset)) / 2.0;
+ }
+ return newScrollOffset;
+ }
+}
diff --git a/packages/flutter/lib/animation/timeline.dart b/packages/flutter/lib/animation/timeline.dart
new file mode 100644
index 0000000..607cb6d
--- /dev/null
+++ b/packages/flutter/lib/animation/timeline.dart
@@ -0,0 +1,91 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+
+import 'package:newton/newton.dart';
+import 'package:sky/animation/animated_simulation.dart';
+
+const double _kEpsilon = 0.001;
+
+// Simple simulation that linearly varies from |begin| to |end| over |duration|.
+class TweenSimulation extends Simulation {
+ final double _durationInSeconds;
+ final double begin;
+ final double end;
+
+ TweenSimulation(Duration duration, this.begin, this.end) :
+ _durationInSeconds = duration.inMilliseconds / 1000.0 {
+ assert(_durationInSeconds > 0.0);
+ assert(begin != null && begin >= 0.0 && begin <= 1.0);
+ assert(end != null && end >= 0.0 && end <= 1.0);
+ }
+
+ double x(double timeInSeconds) {
+ assert(timeInSeconds >= 0.0);
+ final double t = timeInSeconds / _durationInSeconds;
+ return t >= 1.0 ? end : begin + (end - begin) * t;
+ }
+
+ double dx(double timeInSeconds) => 1.0;
+
+ bool isDone(double timeInSeconds) => timeInSeconds > _durationInSeconds;
+}
+
+class Timeline {
+ Timeline(Function onTick) : _onTick = onTick {
+ _animation = new AnimatedSimulation(_tick);
+ }
+
+ final Function _onTick;
+ AnimatedSimulation _animation;
+
+ double get value => _animation.value.clamp(0.0, 1.0);
+ void set value(double newValue) {
+ assert(newValue != null && newValue >= 0.0 && newValue <= 1.0);
+ assert(!isAnimating);
+ _animation.value = newValue;
+ }
+
+ bool get isAnimating => _animation.isAnimating;
+
+ Future _start({
+ Duration duration,
+ double begin: 0.0,
+ double end: 1.0
+ }) {
+ assert(!_animation.isAnimating);
+
+ return _animation.start(new TweenSimulation(duration, begin, end));
+ }
+
+ Future animateTo(double target, { Duration duration }) {
+ return _start(duration: duration, begin: value, end: target);
+ }
+
+ void stop() {
+ _animation.stop();
+ }
+
+ static final SpringDescription _kDefaultSpringDesc =
+ new SpringDescription.withDampingRatio(
+ mass: 1.0, springConstant: 500.0, ratio: 1.0);
+
+ Simulation defaultSpringSimulation({double velocity: 0.0}) {
+ // Target just past the 0 or 1 endpoint, because the animation will stop
+ // once the Spring gets within the epsilon, and we want to stop at 0 or 1.
+ double target = velocity < 0.0 ? -_kEpsilon : 1.0 + _kEpsilon;
+ return new SpringSimulation(_kDefaultSpringDesc, value, target, velocity);
+ }
+
+ // Give |simulation| control over the timeline.
+ Future fling(Simulation simulation) {
+ stop();
+ return _animation.start(simulation);
+ }
+
+ void _tick(double newValue) {
+ _onTick(value);
+ }
+}
diff --git a/packages/flutter/lib/assets/.gitignore b/packages/flutter/lib/assets/.gitignore
new file mode 100644
index 0000000..91b6e9d
--- /dev/null
+++ b/packages/flutter/lib/assets/.gitignore
@@ -0,0 +1 @@
+material-design-icons
diff --git a/packages/flutter/lib/assets/material-design-icons.sha1 b/packages/flutter/lib/assets/material-design-icons.sha1
new file mode 100644
index 0000000..fed5322
--- /dev/null
+++ b/packages/flutter/lib/assets/material-design-icons.sha1
@@ -0,0 +1 @@
+74927f91069e6540e40983acb5eb40072704fd2f
diff --git a/packages/flutter/lib/base/README.md b/packages/flutter/lib/base/README.md
new file mode 100644
index 0000000..7c533c1
--- /dev/null
+++ b/packages/flutter/lib/base/README.md
@@ -0,0 +1,45 @@
+Sky Base
+========
+
+AbstractNode
+------------
+
+The [node.dart](node.dart) file defines a class, `AbstractNode`, which
+can be used to build mutable trees.
+
+* When a subclass is changing the parent of a child, it should
+ call either parent.adoptChild(child) or parent.dropChild(child)
+ as appropriate. Subclasses should expose an API for
+ manipulating the tree if you want to (e.g. a setter for a
+ 'child' property, or an 'add()' method to manipulate a list).
+
+* You can see the current parent by querying 'parent'.
+
+* You can see the current attachment state by querying
+ 'attached'. The root of any tree that is to be considered
+ attached should be manually attached by calling 'attach()'.
+ Other than that, don't call 'attach()' or 'detach()'. This is
+ all managed automatically assuming you call the 'adoptChild()'
+ and 'dropChild()' methods appropriately.
+
+* Subclasses that have children must override 'attach()' and
+ 'detach()' as described below.
+
+* Nodes always have a 'depth' greater than their ancestors'.
+ There's no guarantee regarding depth between siblings. The
+ depth of a node is used to ensure that nodes are processed in
+ depth order. The 'depth' of a child can be more than one
+ greater than the 'depth' of the parent, because the 'depth'
+ values are never decreased: all that matters is that it's
+ greater than the parent. Consider a tree with a root node A, a
+ child B, and a grandchild C. Initially, A will have 'depth' 0,
+ B 'depth' 1, and C 'depth' 2. If C is moved to be a child of A,
+ sibling of B, then the numbers won't change. C's 'depth' will
+ still be 2. This is all managed automatically assuming you call
+ 'adoptChild()' and 'dropChild()' appropriately.
+
+
+Dependencies
+------------
+
+No dependencies except for `dart:sky` and Dart's core libraries.
diff --git a/packages/flutter/lib/base/debug.dart b/packages/flutter/lib/base/debug.dart
new file mode 100644
index 0000000..7b584e5
--- /dev/null
+++ b/packages/flutter/lib/base/debug.dart
@@ -0,0 +1,28 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+final bool inDebugBuild = _initInDebugBuild();
+
+bool _initInDebugBuild() {
+ bool _inDebug = false;
+ bool setAssert() {
+ _inDebug = true;
+ return true;
+ }
+ assert(setAssert());
+ return _inDebug;
+}
+
+bool debugPaintSizeEnabled = false;
+const sky.Color debugPaintSizeColor = const sky.Color(0xFF00FFFF);
+
+bool debugPaintBaselinesEnabled = false;
+const sky.Color debugPaintAlphabeticBaselineColor = const sky.Color(0xFF00FF00);
+const sky.Color debugPaintIdeographicBaselineColor = const sky.Color(0xFFFFD000);
+
+bool debugPaintBoundsEnabled = false;
+
+double timeDilation = 1.0;
diff --git a/packages/flutter/lib/base/hit_test.dart b/packages/flutter/lib/base/hit_test.dart
new file mode 100644
index 0000000..9707142
--- /dev/null
+++ b/packages/flutter/lib/base/hit_test.dart
@@ -0,0 +1,21 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+abstract class HitTestTarget {
+ void handleEvent(sky.Event event, HitTestEntry entry);
+}
+
+class HitTestEntry {
+ const HitTestEntry(this.target);
+ final HitTestTarget target;
+}
+
+class HitTestResult {
+ final List<HitTestEntry> path = new List<HitTestEntry>();
+ void add(HitTestEntry data) {
+ path.add(data);
+ }
+}
diff --git a/packages/flutter/lib/base/lerp.dart b/packages/flutter/lib/base/lerp.dart
new file mode 100644
index 0000000..c40934c
--- /dev/null
+++ b/packages/flutter/lib/base/lerp.dart
@@ -0,0 +1,19 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky';
+
+num lerpNum(num a, num b, double t) => a + (b - a) * t;
+
+Color lerpColor(Color a, Color b, double t) {
+ return new Color.fromARGB(
+ lerpNum(a.alpha, b.alpha, t).toInt(),
+ lerpNum(a.red, b.red, t).toInt(),
+ lerpNum(a.green, b.green, t).toInt(),
+ lerpNum(a.blue, b.blue, t).toInt());
+}
+
+Offset lerpOffset(Offset a, Offset b, double t) {
+ return new Offset(lerpNum(a.dx, b.dx, t), lerpNum(a.dy, b.dy, t));
+}
diff --git a/packages/flutter/lib/base/node.dart b/packages/flutter/lib/base/node.dart
new file mode 100644
index 0000000..43acf8a
--- /dev/null
+++ b/packages/flutter/lib/base/node.dart
@@ -0,0 +1,60 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+class AbstractNode {
+
+ // AbstractNode represents a node in a tree.
+ // The AbstractNode protocol is described in README.md.
+
+ int _depth = 0;
+ int get depth => _depth;
+ void redepthChild(AbstractNode child) { // internal, do not call
+ assert(child._attached == _attached);
+ if (child._depth <= _depth) {
+ child._depth = _depth + 1;
+ child.redepthChildren();
+ }
+ }
+ void redepthChildren() { // internal, do not call
+ // override this in subclasses with child nodes
+ // simply call redepthChild(child) for each child
+ }
+
+ bool _attached = false;
+ bool get attached => _attached;
+ void attach() {
+ // override this in subclasses with child nodes
+ // simply call attach() for each child then call your superclass
+ _attached = true;
+ attachChildren();
+ }
+ attachChildren() { } // workaround for lack of inter-class mixins in Dart
+ void detach() {
+ // override this in subclasses with child nodes
+ // simply call detach() for each child then call your superclass
+ _attached = false;
+ detachChildren();
+ }
+ detachChildren() { } // workaround for lack of inter-class mixins in Dart
+
+ AbstractNode _parent;
+ AbstractNode get parent => _parent;
+ void adoptChild(AbstractNode child) { // only for use by subclasses
+ assert(child != null);
+ assert(child._parent == null);
+ child._parent = this;
+ if (attached)
+ child.attach();
+ redepthChild(child);
+ }
+ void dropChild(AbstractNode child) { // only for use by subclasses
+ assert(child != null);
+ assert(child._parent == this);
+ assert(child.attached == attached);
+ child._parent = null;
+ if (attached)
+ child.detach();
+ }
+
+}
diff --git a/packages/flutter/lib/base/scheduler.dart b/packages/flutter/lib/base/scheduler.dart
new file mode 100644
index 0000000..d149441
--- /dev/null
+++ b/packages/flutter/lib/base/scheduler.dart
@@ -0,0 +1,57 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/base/debug.dart';
+
+typedef void Callback(double timeStamp);
+
+bool _haveScheduledVisualUpdate = false;
+int _nextCallbackId = 1;
+
+final List<Callback> _persistentCallbacks = new List<Callback>();
+Map<int, Callback> _transientCallbacks = new Map<int, Callback>();
+
+void _beginFrame(double timeStamp) {
+ timeStamp /= timeDilation;
+
+ _haveScheduledVisualUpdate = false;
+
+ Map<int, Callback> callbacks = _transientCallbacks;
+ _transientCallbacks = new Map<int, Callback>();
+
+ callbacks.forEach((id, callback) {
+ callback(timeStamp);
+ });
+
+ for (Callback callback in _persistentCallbacks)
+ callback(timeStamp);
+}
+
+void init() {
+ sky.view.setFrameCallback(_beginFrame);
+}
+
+void addPersistentFrameCallback(Callback callback) {
+ _persistentCallbacks.add(callback);
+}
+
+int requestAnimationFrame(Callback callback) {
+ int id = _nextCallbackId++;
+ _transientCallbacks[id] = callback;
+ ensureVisualUpdate();
+ return id;
+}
+
+void cancelAnimationFrame(int id) {
+ _transientCallbacks.remove(id);
+}
+
+void ensureVisualUpdate() {
+ if (_haveScheduledVisualUpdate)
+ return;
+ sky.view.scheduleFrame();
+ _haveScheduledVisualUpdate = true;
+}
diff --git a/packages/flutter/lib/download_material_design_icons b/packages/flutter/lib/download_material_design_icons
new file mode 100755
index 0000000..f0d987e
--- /dev/null
+++ b/packages/flutter/lib/download_material_design_icons
@@ -0,0 +1,55 @@
+#!/usr/bin/env python
+# Copyright (c) 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import os
+import shutil
+import subprocess
+import sys
+import urllib2
+
+
+def main():
+ sky_lib_dir = os.path.dirname(os.path.abspath(__file__))
+ assets_dir = os.path.join(sky_lib_dir, 'assets')
+ icons_dir = os.path.join(assets_dir, 'material-design-icons')
+ existing_sha1_path = os.path.join(icons_dir, 'material-design-icons.sha1')
+
+ existing_sha1 = None
+ if os.path.isfile(existing_sha1_path):
+ with open(existing_sha1_path, 'r') as f:
+ existing_sha1 = f.read()
+
+ sha1_path = os.path.join(assets_dir, 'material-design-icons.sha1')
+
+ with open(sha1_path, 'r') as f:
+ sha1 = f.read()
+
+ if existing_sha1 == sha1:
+ return
+
+ print "Downloading missing material design icons"
+
+ tgz_path = os.path.join(assets_dir, 'material-design-icons.tgz')
+ url = 'https://storage.googleapis.com/mojo/material-design-icons/%s' % sha1
+ response = urllib2.urlopen(url)
+
+ with open(tgz_path, 'wb') as f:
+ f.write(response.read())
+
+ shutil.rmtree(icons_dir, ignore_errors=True)
+
+ output_path = os.path.join(assets_dir, tgz_path)
+ subprocess.call([
+ 'tar', '-xzf', output_path, '-C', assets_dir
+ ])
+
+ subprocess.call([
+ 'cp', sha1_path, icons_dir
+ ])
+
+ os.unlink(tgz_path)
+
+if __name__ == '__main__':
+ sys.exit(main())
diff --git a/packages/flutter/lib/editing/editable_string.dart b/packages/flutter/lib/editing/editable_string.dart
new file mode 100644
index 0000000..728788e
--- /dev/null
+++ b/packages/flutter/lib/editing/editable_string.dart
@@ -0,0 +1,122 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:mojom/keyboard/keyboard.mojom.dart';
+
+typedef void StringUpdated();
+
+class TextRange {
+ final int start;
+ final int end;
+
+ TextRange({this.start, this.end});
+ TextRange.collapsed(int position)
+ : start = position,
+ end = position;
+ const TextRange.empty()
+ : start = -1,
+ end = -1;
+
+ bool get isValid => start >= 0 && end >= 0;
+ bool get isCollapsed => start == end;
+}
+
+class EditableString implements KeyboardClient {
+ String text;
+ TextRange composing = const TextRange.empty();
+ TextRange selection = const TextRange.empty();
+
+ final StringUpdated onUpdated;
+
+ KeyboardClientStub stub;
+
+ EditableString({this.text: '', this.onUpdated}) {
+ stub = new KeyboardClientStub.unbound()..impl = this;
+ }
+
+ String textBefore(TextRange range) {
+ return text.substring(0, range.start);
+ }
+
+ String textAfter(TextRange range) {
+ return text.substring(range.end);
+ }
+
+ String textInside(TextRange range) {
+ return text.substring(range.start, range.end);
+ }
+
+ void _delete(TextRange range) {
+ if (range.isCollapsed || !range.isValid) return;
+ text = textBefore(range) + textAfter(range);
+ }
+
+ TextRange _append(String newText) {
+ int start = text.length;
+ text += newText;
+ return new TextRange(start: start, end: start + newText.length);
+ }
+
+ TextRange _replace(TextRange range, String newText) {
+ assert(range.isValid);
+
+ String before = textBefore(range);
+ String after = textAfter(range);
+
+ text = before + newText + after;
+ return new TextRange(
+ start: before.length, end: before.length + newText.length);
+ }
+
+ TextRange _replaceOrAppend(TextRange range, String newText) {
+ if (!range.isValid) return _append(newText);
+ return _replace(range, newText);
+ }
+
+ void commitCompletion(CompletionData completion) {
+ // TODO(abarth): Not implemented.
+ }
+
+ void commitCorrection(CorrectionData correction) {
+ // TODO(abarth): Not implemented.
+ }
+
+ void commitText(String text, int newCursorPosition) {
+ // TODO(abarth): Why is |newCursorPosition| always 1?
+ TextRange committedRange = _replaceOrAppend(composing, text);
+ selection = new TextRange.collapsed(committedRange.end);
+ composing = const TextRange.empty();
+ onUpdated();
+ }
+
+ void deleteSurroundingText(int beforeLength, int afterLength) {
+ TextRange beforeRange = new TextRange(
+ start: selection.start - beforeLength, end: selection.start);
+ TextRange afterRange =
+ new TextRange(start: selection.end, end: selection.end + afterLength);
+ _delete(afterRange);
+ _delete(beforeRange);
+ selection = new TextRange(
+ start: selection.start - beforeLength,
+ end: selection.end - beforeLength);
+ onUpdated();
+ }
+
+ void setComposingRegion(int start, int end) {
+ composing = new TextRange(start: start, end: end);
+ onUpdated();
+ }
+
+ void setComposingText(String text, int newCursorPosition) {
+ // TODO(abarth): Why is |newCursorPosition| always 1?
+ composing = _replaceOrAppend(composing, text);
+ selection = new TextRange.collapsed(composing.end);
+ onUpdated();
+ }
+
+ void setSelection(int start, int end) {
+ selection = new TextRange(start: start, end: end);
+ onUpdated();
+ }
+}
diff --git a/packages/flutter/lib/editing/editable_text.dart b/packages/flutter/lib/editing/editable_text.dart
new file mode 100644
index 0000000..a338966
--- /dev/null
+++ b/packages/flutter/lib/editing/editable_text.dart
@@ -0,0 +1,110 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:sky' as sky;
+
+import 'package:sky/editing/editable_string.dart';
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/widgets/basic.dart';
+
+const _kCursorBlinkPeriod = 500; // milliseconds
+const _kCursorGap = 1.0;
+const _kCursorHeightOffset = 2.0;
+const _kCursorWidth = 1.0;
+
+class EditableText extends StatefulComponent {
+
+ EditableText({
+ String key,
+ this.value,
+ this.focused: false,
+ this.style,
+ this.cursorColor}) : super(key: key);
+
+ EditableString value;
+ bool focused;
+ TextStyle style;
+ Color cursorColor;
+
+ void syncFields(EditableText source) {
+ value = source.value;
+ focused = source.focused;
+ style = source.style;
+ cursorColor = source.cursorColor;
+ }
+
+ Timer _cursorTimer;
+ bool _showCursor = false;
+
+ void _cursorTick(Timer timer) {
+ setState(() {
+ _showCursor = !_showCursor;
+ });
+ }
+
+ void _startCursorTimer() {
+ _showCursor = true;
+ _cursorTimer = new Timer.periodic(
+ new Duration(milliseconds: _kCursorBlinkPeriod), _cursorTick);
+ }
+
+ void didUnmount() {
+ if (_cursorTimer != null)
+ _stopCursorTimer();
+ super.didUnmount();
+ }
+
+ void _stopCursorTimer() {
+ _cursorTimer.cancel();
+ _cursorTimer = null;
+ _showCursor = false;
+ }
+
+ void _paintCursor(sky.Canvas canvas, Size size) {
+ if (!_showCursor)
+ return;
+
+ Rect cursorRect = new Rect.fromLTWH(
+ _kCursorGap,
+ -_kCursorHeightOffset,
+ _kCursorWidth,
+ style.fontSize + 2 * _kCursorHeightOffset
+ );
+ canvas.drawRect(cursorRect, new Paint()..color = cursorColor);
+ }
+
+ Widget build() {
+ assert(style != null);
+ assert(focused != null);
+ assert(cursorColor != null);
+
+ if (focused && _cursorTimer == null)
+ _startCursorTimer();
+ else if (!focused && _cursorTimer != null)
+ _stopCursorTimer();
+
+ if (!value.composing.isValid) {
+ // TODO(eseidel): This is the wrong height if empty!
+ return new Text(value.text, style: style);
+ }
+
+ TextStyle composingStyle = style.merge(const TextStyle(decoration: underline));
+ StyledText text = new StyledText(elements: [
+ style,
+ value.textBefore(value.composing),
+ [composingStyle, value.textInside(value.composing)],
+ value.textAfter(value.composing)
+ ]);
+
+ Widget cursor = new Container(
+ height: style.fontSize,
+ width: _kCursorGap + _kCursorWidth,
+ child: new CustomPaint(callback: _paintCursor, token: _showCursor)
+ );
+
+ return new Flex([text, cursor]);
+ }
+}
diff --git a/packages/flutter/lib/editing/input.dart b/packages/flutter/lib/editing/input.dart
new file mode 100644
index 0000000..992f0cb
--- /dev/null
+++ b/packages/flutter/lib/editing/input.dart
@@ -0,0 +1,121 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/editing/editable_string.dart';
+import 'package:sky/editing/editable_text.dart';
+import 'package:sky/mojo/keyboard.dart';
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/theme.dart';
+
+typedef void ValueChanged(value);
+
+// TODO(eseidel): This isn't right, it's 16px on the bottom:
+// http://www.google.com/design/spec/components/text-fields.html#text-fields-single-line-text-field
+const EdgeDims _kTextfieldPadding = const EdgeDims.symmetric(vertical: 8.0);
+
+class Input extends StatefulComponent {
+
+ // Current thinking is that Widget will have an optional globalKey
+ // or heroKey and it will ask Focus.from(this).isFocused which will
+ // check using its globalKey.
+ // Only one element can use a globalKey at a time and its' up to
+ // Widget.sync to maintain the mapping.
+ // Never makes sense to have both a localKey and a globalKey.
+ // Possibly a class HeroKey who functions as a UUID.
+
+ Input({String key,
+ this.placeholder,
+ this.onChanged,
+ this.focused})
+ : super(key: key);
+
+ String placeholder;
+ ValueChanged onChanged;
+ bool focused = false;
+
+ void initState() {
+ _editableValue = new EditableString(
+ text: _value,
+ onUpdated: _handleTextUpdated
+ );
+ super.initState();
+ }
+
+ void syncFields(Input source) {
+ placeholder = source.placeholder;
+ onChanged = source.onChanged;
+ focused = source.focused;
+ }
+
+ String _value = '';
+ bool _isAttachedToKeyboard = false;
+ EditableString _editableValue;
+
+ void _handleTextUpdated() {
+ scheduleBuild();
+ if (_value != _editableValue.text) {
+ _value = _editableValue.text;
+ if (onChanged != null)
+ onChanged(_value);
+ }
+ }
+
+ Widget build() {
+ ThemeData themeData = Theme.of(this);
+
+ if (focused && !_isAttachedToKeyboard) {
+ keyboard.show(_editableValue.stub);
+ _isAttachedToKeyboard = true;
+ }
+
+ TextStyle textStyle = themeData.text.subhead;
+ List<Widget> textChildren = <Widget>[];
+
+ if (placeholder != null && _value.isEmpty) {
+ Widget child = new Opacity(
+ key: "placeholder",
+ child: new Text(placeholder, style: textStyle),
+ opacity: themeData.hintOpacity
+ );
+ textChildren.add(child);
+ }
+
+ Color focusHighlightColor = themeData.accentColor;
+ Color cursorColor = themeData.accentColor;
+ if (themeData.primarySwatch != null) {
+ cursorColor = themeData.primarySwatch[200];
+ focusHighlightColor = focused ? themeData.primarySwatch[400] : themeData.hintColor;
+ }
+
+ textChildren.add(new EditableText(
+ value: _editableValue,
+ focused: focused,
+ style: textStyle,
+ cursorColor: cursorColor
+ ));
+
+ Border focusHighlight = new Border(bottom: new BorderSide(
+ color: focusHighlightColor,
+ width: focused ? 2.0 : 1.0
+ ));
+
+ Container input = new Container(
+ child: new Stack(textChildren),
+ padding: _kTextfieldPadding,
+ decoration: new BoxDecoration(border: focusHighlight)
+ );
+
+ return new Listener(
+ child: input,
+ onPointerDown: (_) => keyboard.showByRequest()
+ );
+ }
+
+ void didUnmount() {
+ if (_isAttachedToKeyboard)
+ keyboard.hide();
+ super.didUnmount();
+ }
+}
diff --git a/packages/flutter/lib/mojo/activity.dart b/packages/flutter/lib/mojo/activity.dart
new file mode 100644
index 0000000..3cb231b
--- /dev/null
+++ b/packages/flutter/lib/mojo/activity.dart
@@ -0,0 +1,48 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky';
+
+import 'package:mojom/activity/activity.mojom.dart';
+import 'package:sky/mojo/shell.dart' as shell;
+
+export 'package:mojom/activity/activity.mojom.dart' show Intent, ComponentName, StringExtra;
+
+const int NEW_DOCUMENT = 0x00080000;
+const int NEW_TASK = 0x10000000;
+const int MULTIPLE_TASK = 0x08000000;
+
+ActivityProxy _initActivity() {
+ ActivityProxy activity = new ActivityProxy.unbound();
+ shell.requestService('mojo:sky_viewer', activity);
+ return activity;
+}
+
+final ActivityProxy _activity = _initActivity();
+
+Color _cachedPrimaryColor;
+String _cachedLabel;
+
+
+void finishCurrentActivity() {
+ _activity.ptr.finishCurrentActivity();
+}
+
+void startActivity(Intent intent) {
+ _activity.ptr.startActivity(intent);
+}
+
+void updateTaskDescription(String label, Color color) {
+ if (_cachedPrimaryColor == color && _cachedLabel == label)
+ return;
+
+ _cachedPrimaryColor = color;
+ _cachedLabel = label;
+
+ TaskDescription description = new TaskDescription()
+ ..label = label
+ ..primaryColor = (color != null ? color.value : null);
+
+ _activity.ptr.setTaskDescription(description);
+}
diff --git a/packages/flutter/lib/mojo/asset_bundle.dart b/packages/flutter/lib/mojo/asset_bundle.dart
new file mode 100644
index 0000000..6845a8f
--- /dev/null
+++ b/packages/flutter/lib/mojo/asset_bundle.dart
@@ -0,0 +1,96 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:sky' as sky;
+import 'dart:sky.internals' as internals;
+import 'dart:typed_data';
+
+import 'package:mojo/core.dart' as core;
+import 'package:mojom/mojo/asset_bundle/asset_bundle.mojom.dart';
+import 'package:sky/mojo/net/fetch.dart';
+import 'package:sky/mojo/net/image_cache.dart' as image_cache;
+import 'package:sky/mojo/shell.dart' as shell;
+
+abstract class AssetBundle {
+ void close();
+ Future<sky.Image> loadImage(String key);
+ Future<String> loadString(String key);
+}
+
+class NetworkAssetBundle extends AssetBundle {
+ NetworkAssetBundle(Uri baseUrl) : _baseUrl = baseUrl;
+
+ final Uri _baseUrl;
+
+ void close() { }
+
+ Future<sky.Image> loadImage(String key) {
+ return image_cache.load(_baseUrl.resolve(key).toString());
+ }
+
+ Future<String> loadString(String key) {
+ return fetchString(_baseUrl.resolve(key).toString());
+ }
+}
+
+Future _fetchAndUnpackBundle(String relativeUrl, AssetBundleProxy bundle) async {
+ core.MojoDataPipeConsumer bundleData = (await fetchUrl(relativeUrl)).body;
+ AssetUnpackerProxy unpacker = new AssetUnpackerProxy.unbound();
+ shell.requestService("mojo:asset_bundle", unpacker);
+ unpacker.ptr.unpackZipStream(bundleData, bundle);
+ unpacker.close();
+}
+
+class MojoAssetBundle extends AssetBundle {
+ MojoAssetBundle(AssetBundleProxy this._bundle);
+
+ factory MojoAssetBundle.fromNetwork(String relativeUrl) {
+ AssetBundleProxy bundle = new AssetBundleProxy.unbound();
+ _fetchAndUnpackBundle(relativeUrl, bundle);
+ return new MojoAssetBundle(bundle);
+ }
+
+ AssetBundleProxy _bundle;
+ Map<String, Future<sky.Image>> _imageCache = new Map<String, Future<sky.Image>>();
+ Map<String, Future<String>> _stringCache = new Map<String, Future<String>>();
+
+ void close() {
+ _bundle.close();
+ _bundle = null;
+ _imageCache = null;
+ }
+
+ Future<sky.Image> loadImage(String key) {
+ return _imageCache.putIfAbsent(key, () {
+ Completer<sky.Image> completer = new Completer<sky.Image>();
+ _bundle.ptr.getAsStream(key).then((response) {
+ new sky.ImageDecoder(response.assetData.handle.h, completer.complete);
+ });
+ return completer.future;
+ });
+ }
+
+ Future<String> _fetchString(String key) async {
+ core.MojoDataPipeConsumer pipe = (await _bundle.ptr.getAsStream(key)).assetData;
+ ByteData data = await core.DataPipeDrainer.drainHandle(pipe);
+ return new String.fromCharCodes(new Uint8List.view(data.buffer));
+ }
+
+ Future<String> loadString(String key) {
+ return _stringCache.putIfAbsent(key, () => _fetchString(key));
+ }
+}
+
+AssetBundle _initRootBundle() {
+ try {
+ AssetBundleProxy bundle = new AssetBundleProxy.fromHandle(
+ new core.MojoHandle(internals.takeRootBundleHandle()));
+ return new MojoAssetBundle(bundle);
+ } catch (e) {
+ return null;
+ }
+}
+
+final AssetBundle rootBundle = _initRootBundle();
diff --git a/packages/flutter/lib/mojo/embedder.dart b/packages/flutter/lib/mojo/embedder.dart
new file mode 100644
index 0000000..1bcf13b
--- /dev/null
+++ b/packages/flutter/lib/mojo/embedder.dart
@@ -0,0 +1,72 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import "dart:sky.internals" as internals;
+
+import "package:mojo/application.dart";
+import "package:mojo/bindings.dart" as bindings;
+import "package:mojo/core.dart" as core;
+import "package:mojom/mojo/service_provider.mojom.dart";
+import "package:mojom/mojo/service_registry.mojom.dart";
+import "package:mojom/mojo/shell.mojom.dart";
+
+final _EmbedderImpl embedder = new _EmbedderImpl();
+
+class _EmbedderImpl {
+ ApplicationConnection _connection;
+ ServiceRegistryProxy _serviceRegistry;
+ ShellProxy _shell;
+ bool _internalsHasNoShell = false;
+
+ ShellProxy get shell {
+ if (_internalsHasNoShell || _shell != null) return _shell;
+
+ try {
+ _shell = new ShellProxy.fromHandle(
+ new core.MojoHandle(internals.takeShellProxyHandle()));
+ } catch (e) {
+ _internalsHasNoShell = true;
+ }
+ return _shell;
+ }
+
+ ApplicationConnection get connection {
+ if (_connection == null) {
+ var stubHandle =
+ new core.MojoHandle(internals.takeServicesProvidedToEmbedder());
+ var proxyHandle =
+ new core.MojoHandle(internals.takeServicesProvidedByEmbedder());
+ _connection = new ApplicationConnection(stubHandle.isValid
+ ? new ServiceProviderStub.fromHandle(stubHandle)
+ : null, proxyHandle.isValid
+ ? new ServiceProviderProxy.fromHandle(proxyHandle)
+ : null);
+ }
+ return _connection;
+ }
+
+ ApplicationConnection connectToApplication(String url) {
+ var proxy = new ServiceProviderProxy.unbound();
+ var stub = new ServiceProviderStub.unbound();
+ shell.ptr.connectToApplication(url, proxy, stub);
+ return new ApplicationConnection(stub, proxy);
+ }
+
+ void connectToService(String url, bindings.ProxyBase proxy) {
+ var appSp = new ServiceProviderProxy.unbound();
+ shell.ptr.connectToApplication(url, appSp, null);
+ var pipe = new core.MojoMessagePipe();
+ proxy.impl.bind(pipe.endpoints[0]);
+ appSp.ptr.connectToService(proxy.name, pipe.endpoints[1]);
+ appSp.close();
+ }
+
+ ServiceRegistryProxy get serviceRegistry {
+ if (_serviceRegistry == null) {
+ _serviceRegistry = new ServiceRegistryProxy.fromHandle(
+ new core.MojoHandle(internals.takeServiceRegistry()));
+ }
+ return _serviceRegistry;
+ }
+}
diff --git a/packages/flutter/lib/mojo/keyboard.dart b/packages/flutter/lib/mojo/keyboard.dart
new file mode 100644
index 0000000..c0b699b
--- /dev/null
+++ b/packages/flutter/lib/mojo/keyboard.dart
@@ -0,0 +1,20 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:mojom/keyboard/keyboard.mojom.dart';
+import 'package:sky/mojo/shell.dart' as shell;
+
+class _KeyboardConnection {
+ KeyboardServiceProxy proxy;
+
+ _KeyboardConnection() {
+ proxy = new KeyboardServiceProxy.unbound();
+ shell.requestService("mojo:keyboard", proxy);
+ }
+
+ KeyboardService get keyboard => proxy.ptr;
+}
+
+final _KeyboardConnection _connection = new _KeyboardConnection();
+final KeyboardService keyboard = _connection.keyboard;
diff --git a/packages/flutter/lib/mojo/net/fetch.dart b/packages/flutter/lib/mojo/net/fetch.dart
new file mode 100644
index 0000000..5bcf0b3
--- /dev/null
+++ b/packages/flutter/lib/mojo/net/fetch.dart
@@ -0,0 +1,64 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:typed_data';
+
+import 'package:mojo/core.dart' as core;
+import 'package:mojom/mojo/network_service.mojom.dart';
+import 'package:mojom/mojo/url_loader.mojom.dart';
+import 'package:mojom/mojo/url_request.mojom.dart';
+import 'package:mojom/mojo/url_response.mojom.dart';
+import 'package:sky/mojo/shell.dart' as shell;
+
+class Response {
+ ByteData body;
+
+ Response(this.body);
+
+ String bodyAsString() {
+ if (body == null)
+ return null;
+ return new String.fromCharCodes(new Uint8List.view(body.buffer));
+ }
+}
+
+Future<UrlResponse> fetch(UrlRequest request) async {
+ try {
+ NetworkServiceProxy net = new NetworkServiceProxy.unbound();
+ shell.requestService("mojo:authenticated_network_service", net);
+
+ UrlLoaderProxy loader = new UrlLoaderProxy.unbound();
+ net.ptr.createUrlLoader(loader);
+
+ UrlResponse response = (await loader.ptr.start(request)).response;
+
+ loader.close();
+ net.close();
+ return response;
+ } catch (e) {
+ return new UrlResponse()..statusCode = 500;
+ }
+}
+
+Future<UrlResponse> fetchUrl(String relativeUrl) async {
+ String url = Uri.base.resolve(relativeUrl).toString();
+ UrlRequest request = new UrlRequest()
+ ..url = url
+ ..autoFollowRedirects = true;
+ return fetch(request);
+}
+
+Future<Response> fetchBody(String relativeUrl) async {
+ UrlResponse response = await fetchUrl(relativeUrl);
+ if (response.body == null) return new Response(null);
+
+ ByteData data = await core.DataPipeDrainer.drainHandle(response.body);
+ return new Response(data);
+}
+
+Future<String> fetchString(String relativeUrl) async {
+ Response response = await fetchBody(relativeUrl);
+ return response.bodyAsString();
+}
diff --git a/packages/flutter/lib/mojo/net/image_cache.dart b/packages/flutter/lib/mojo/net/image_cache.dart
new file mode 100644
index 0000000..9c6d19d
--- /dev/null
+++ b/packages/flutter/lib/mojo/net/image_cache.dart
@@ -0,0 +1,28 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:collection';
+import 'dart:sky' as sky;
+
+import 'package:mojom/mojo/url_response.mojom.dart';
+import 'package:sky/mojo/net/fetch.dart';
+
+final HashMap<String, Future<sky.Image>> _cache =
+ new HashMap<String, Future<sky.Image>>();
+
+Future<sky.Image> load(String url) {
+ return _cache.putIfAbsent(url, () {
+ Completer<sky.Image> completer = new Completer<sky.Image>();
+ fetchUrl(url).then((UrlResponse response) {
+ if (response.statusCode >= 400) {
+ print("Failed to load image ${url}");
+ completer.complete(null);
+ } else {
+ new sky.ImageDecoder(response.body.handle.h, completer.complete);
+ }
+ });
+ return completer.future;
+ });
+}
diff --git a/packages/flutter/lib/mojo/shell.dart b/packages/flutter/lib/mojo/shell.dart
new file mode 100644
index 0000000..9373d68
--- /dev/null
+++ b/packages/flutter/lib/mojo/shell.dart
@@ -0,0 +1,26 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import "dart:sky.internals" as internals;
+
+import "package:mojo/application.dart";
+import "package:mojom/mojo/service_provider.mojom.dart";
+import 'package:mojo/core.dart' as core;
+import "package:sky/mojo/embedder.dart";
+
+ApplicationConnection _initConnection() {
+ int rawHandle = internals.takeServicesProvidedByEmbedder();
+ core.MojoHandle proxyHandle = new core.MojoHandle(rawHandle);
+ ServiceProviderProxy serviceProvider = null;
+ if (proxyHandle.isValid) serviceProvider =
+ new ServiceProviderProxy.fromHandle(proxyHandle);
+ return new ApplicationConnection(null, serviceProvider);
+}
+
+final ApplicationConnection _connection = _initConnection();
+
+void requestService(String url, Object proxy) {
+ if (embedder.shell == null) _connection.requestService(proxy);
+ else embedder.connectToService(url, proxy);
+}
diff --git a/packages/flutter/lib/painting/box_painter.dart b/packages/flutter/lib/painting/box_painter.dart
new file mode 100644
index 0000000..c7c7e4c
--- /dev/null
+++ b/packages/flutter/lib/painting/box_painter.dart
@@ -0,0 +1,389 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:math' as math;
+import 'dart:sky' as sky;
+import 'dart:sky' show Point, Offset, Size, Rect, Color, Paint, Path;
+
+import 'package:sky/base/lerp.dart';
+import 'package:sky/painting/shadows.dart';
+
+class BorderSide {
+ const BorderSide({
+ this.color: const Color(0xFF000000),
+ this.width: 1.0
+ });
+ final Color color;
+ final double width;
+
+ static const none = const BorderSide(width: 0.0);
+
+ int get hashCode {
+ int value = 373;
+ value = 37 * value * color.hashCode;
+ value = 37 * value * width.hashCode;
+ return value;
+ }
+ String toString() => 'BorderSide($color, $width)';
+}
+
+class Border {
+ const Border({
+ this.top: BorderSide.none,
+ this.right: BorderSide.none,
+ this.bottom: BorderSide.none,
+ this.left: BorderSide.none
+ });
+
+ const Border.all(BorderSide side) :
+ top = side,
+ right = side,
+ bottom = side,
+ left = side;
+
+ final BorderSide top;
+ final BorderSide right;
+ final BorderSide bottom;
+ final BorderSide left;
+
+ int get hashCode {
+ int value = 373;
+ value = 37 * value * top.hashCode;
+ value = 37 * value * right.hashCode;
+ value = 37 * value * bottom.hashCode;
+ value = 37 * value * left.hashCode;
+ return value;
+ }
+ String toString() => 'Border($top, $right, $bottom, $left)';
+}
+
+class BoxShadow {
+ const BoxShadow({
+ this.color,
+ this.offset,
+ this.blur
+ });
+
+ final Color color;
+ final Offset offset;
+ final double blur;
+
+ String toString() => 'BoxShadow($color, $offset, $blur)';
+}
+
+BoxShadow lerpBoxShadow(BoxShadow a, BoxShadow b, double t) {
+ return new BoxShadow(
+ color: lerpColor(a.color, b.color, t),
+ offset: lerpOffset(a.offset, b.offset, t),
+ blur: lerpNum(a.blur, b.blur, t));
+}
+
+abstract class Gradient {
+ sky.Shader createShader();
+}
+
+class LinearGradient extends Gradient {
+ LinearGradient({
+ this.endPoints,
+ this.colors,
+ this.colorStops,
+ this.tileMode: sky.TileMode.clamp
+ });
+
+ String toString() =>
+ 'LinearGradient($endPoints, $colors, $colorStops, $tileMode)';
+
+ sky.Shader createShader() {
+ return new sky.Gradient.linear(this.endPoints, this.colors, this.colorStops,
+ this.tileMode);
+ }
+
+ final List<Point> endPoints;
+ final List<Color> colors;
+ final List<double> colorStops;
+ final sky.TileMode tileMode;
+}
+
+class RadialGradient extends Gradient {
+ RadialGradient({
+ this.center,
+ this.radius,
+ this.colors,
+ this.colorStops,
+ this.tileMode: sky.TileMode.clamp
+ });
+
+ String toString() =>
+ 'RadialGradient($center, $radius, $colors, $colorStops, $tileMode)';
+
+ sky.Shader createShader() {
+ return new sky.Gradient.radial(this.center, this.radius, this.colors,
+ this.colorStops, this.tileMode);
+ }
+
+ final Point center;
+ final double radius;
+ final List<Color> colors;
+ final List<double> colorStops;
+ final sky.TileMode tileMode;
+}
+
+enum BackgroundFit { fill, contain, cover, none, scaleDown }
+
+enum BackgroundRepeat { repeat, repeatX, repeatY, noRepeat }
+
+// TODO(jackson): We should abstract this out into a separate class
+// that handles the image caching and so forth, which has callbacks
+// for "size changed" and "image changed". This would also enable us
+// to do animated images.
+
+class BackgroundImage {
+ final BackgroundFit fit;
+ final BackgroundRepeat repeat;
+ BackgroundImage({
+ Future<sky.Image> image,
+ this.fit: BackgroundFit.scaleDown,
+ this.repeat: BackgroundRepeat.noRepeat
+ }) {
+ image.then((resolvedImage) {
+ if (resolvedImage == null)
+ return;
+ _image = resolvedImage;
+ _size = new Size(resolvedImage.width.toDouble(), resolvedImage.height.toDouble());
+ for (Function listener in _listeners) {
+ listener();
+ }
+ });
+ }
+
+ sky.Image _image;
+ sky.Image get image => _image;
+
+ Size _size;
+
+ final List<Function> _listeners = new List<Function>();
+
+ void addChangeListener(Function listener) {
+ _listeners.add(listener);
+ }
+
+ void removeChangeListener(Function listener) {
+ _listeners.remove(listener);
+ }
+
+ String toString() => 'BackgroundImage($fit, $repeat)';
+}
+
+enum Shape { rectangle, circle }
+
+// This must be immutable, because we won't notice when it changes
+class BoxDecoration {
+ const BoxDecoration({
+ this.backgroundColor, // null = don't draw background color
+ this.backgroundImage, // null = don't draw background image
+ this.border, // null = don't draw border
+ this.borderRadius, // null = use more efficient background drawing; note that this must be null for circles
+ this.boxShadow, // null = don't draw shadows
+ this.gradient, // null = don't allocate gradient objects
+ this.shape: Shape.rectangle
+ });
+
+ final Color backgroundColor;
+ final BackgroundImage backgroundImage;
+ final double borderRadius;
+ final Border border;
+ final List<BoxShadow> boxShadow;
+ final Gradient gradient;
+ final Shape shape;
+
+ String toString([String prefix = '']) {
+ List<String> result = [];
+ if (backgroundColor != null)
+ result.add('${prefix}backgroundColor: $backgroundColor');
+ if (backgroundImage != null)
+ result.add('${prefix}backgroundImage: $backgroundImage');
+ if (border != null)
+ result.add('${prefix}border: $border');
+ if (borderRadius != null)
+ result.add('${prefix}borderRadius: $borderRadius');
+ if (boxShadow != null)
+ result.add('${prefix}boxShadow: ${boxShadow.map((shadow) => shadow.toString())}');
+ if (gradient != null)
+ result.add('${prefix}gradient: $gradient');
+ if (shape != Shape.rectangle)
+ result.add('${prefix}shape: $shape');
+ if (result.isEmpty)
+ return '${prefix}<no decorations specified>';
+ return result.join('\n');
+ }
+}
+
+class BoxPainter {
+ BoxPainter(BoxDecoration decoration) : _decoration = decoration {
+ assert(decoration != null);
+ }
+
+ BoxDecoration _decoration;
+ BoxDecoration get decoration => _decoration;
+ void set decoration (BoxDecoration value) {
+ assert(value != null);
+ if (value == _decoration)
+ return;
+ _decoration = value;
+ _cachedBackgroundPaint = null;
+ }
+
+ Paint _cachedBackgroundPaint;
+ Paint get _backgroundPaint {
+ if (_cachedBackgroundPaint == null) {
+ Paint paint = new Paint();
+
+ if (_decoration.backgroundColor != null)
+ paint.color = _decoration.backgroundColor;
+
+ if (_decoration.boxShadow != null) {
+ var builder = new ShadowDrawLooperBuilder();
+ for (BoxShadow boxShadow in _decoration.boxShadow)
+ builder.addShadow(boxShadow.offset, boxShadow.color, boxShadow.blur);
+ paint.setDrawLooper(builder.build());
+ }
+
+ if (_decoration.gradient != null)
+ paint.setShader(_decoration.gradient.createShader());
+
+ _cachedBackgroundPaint = paint;
+ }
+
+ return _cachedBackgroundPaint;
+ }
+
+ void _paintBackgroundColor(sky.Canvas canvas, Rect rect) {
+ if (_decoration.backgroundColor != null || _decoration.boxShadow != null ||
+ _decoration.gradient != null) {
+ switch (_decoration.shape) {
+ case Shape.circle:
+ assert(_decoration.borderRadius == null);
+ Point center = rect.center;
+ double radius = rect.shortestSide / 2.0;
+ canvas.drawCircle(center, radius, _backgroundPaint);
+ break;
+ case Shape.rectangle:
+ if (_decoration.borderRadius == null)
+ canvas.drawRect(rect, _backgroundPaint);
+ else
+ canvas.drawRRect(new sky.RRect()..setRectXY(rect, _decoration.borderRadius, _decoration.borderRadius), _backgroundPaint);
+ break;
+ }
+ }
+ }
+
+ void _paintBackgroundImage(sky.Canvas canvas, Rect rect) {
+ if (_decoration.backgroundImage == null)
+ return;
+ sky.Image image = _decoration.backgroundImage.image;
+ if (image != null) {
+ Size bounds = rect.size;
+ Size imageSize = _decoration.backgroundImage._size;
+ Size src;
+ Size dst;
+ switch(_decoration.backgroundImage.fit) {
+ case BackgroundFit.fill:
+ src = imageSize;
+ dst = bounds;
+ break;
+ case BackgroundFit.contain:
+ src = imageSize;
+ if (bounds.width / bounds.height > src.width / src.height) {
+ dst = new Size(bounds.width, src.height * bounds.width / src.width);
+ } else {
+ dst = new Size(src.width * bounds.height / src.height, bounds.height);
+ }
+ break;
+ case BackgroundFit.cover:
+ if (bounds.width / bounds.height > imageSize.width / imageSize.height) {
+ src = new Size(imageSize.width, imageSize.width * bounds.height / bounds.width);
+ } else {
+ src = new Size(imageSize.height * bounds.width / bounds.height, imageSize.height);
+ }
+ dst = bounds;
+ break;
+ case BackgroundFit.none:
+ src = new Size(math.min(imageSize.width, bounds.width),
+ math.min(imageSize.height, bounds.height));
+ dst = src;
+ break;
+ case BackgroundFit.scaleDown:
+ src = imageSize;
+ dst = bounds;
+ if (src.height > dst.height) {
+ dst = new Size(src.width * dst.height / src.height, src.height);
+ }
+ if (src.width > dst.width) {
+ dst = new Size(dst.width, src.height * dst.width / src.width);
+ }
+ break;
+ }
+ canvas.drawImageRect(image, Point.origin & src, rect.topLeft & dst, new Paint());
+ }
+ }
+
+ void _paintBorder(sky.Canvas canvas, Rect rect) {
+ if (_decoration.border == null)
+ return;
+
+ assert(_decoration.borderRadius == null); // TODO(abarth): Implement borders with border radius.
+ assert(_decoration.shape == Shape.rectangle); // TODO(ianh): Implement borders on circles.
+
+ assert(_decoration.border.top != null);
+ assert(_decoration.border.right != null);
+ assert(_decoration.border.bottom != null);
+ assert(_decoration.border.left != null);
+
+ Paint paint = new Paint();
+ Path path;
+
+ paint.color = _decoration.border.top.color;
+ path = new Path();
+ path.moveTo(rect.left, rect.top);
+ path.lineTo(rect.left + _decoration.border.left.width, rect.top + _decoration.border.top.width);
+ path.lineTo(rect.right - _decoration.border.right.width, rect.top + _decoration.border.top.width);
+ path.lineTo(rect.right, rect.top);
+ path.close();
+ canvas.drawPath(path, paint);
+
+ paint.color = _decoration.border.right.color;
+ path = new Path();
+ path.moveTo(rect.right, rect.top);
+ path.lineTo(rect.right - _decoration.border.right.width, rect.top + _decoration.border.top.width);
+ path.lineTo(rect.right - _decoration.border.right.width, rect.bottom - _decoration.border.bottom.width);
+ path.lineTo(rect.right, rect.bottom);
+ path.close();
+ canvas.drawPath(path, paint);
+
+ paint.color = _decoration.border.bottom.color;
+ path = new Path();
+ path.moveTo(rect.right, rect.bottom);
+ path.lineTo(rect.right - _decoration.border.right.width, rect.bottom - _decoration.border.bottom.width);
+ path.lineTo(rect.left + _decoration.border.left.width, rect.bottom - _decoration.border.bottom.width);
+ path.lineTo(rect.left, rect.bottom);
+ path.close();
+ canvas.drawPath(path, paint);
+
+ paint.color = _decoration.border.left.color;
+ path = new Path();
+ path.moveTo(rect.left, rect.bottom);
+ path.lineTo(rect.left + _decoration.border.left.width, rect.bottom - _decoration.border.bottom.width);
+ path.lineTo(rect.left + _decoration.border.left.width, rect.top + _decoration.border.top.width);
+ path.lineTo(rect.left, rect.top);
+ path.close();
+ canvas.drawPath(path, paint);
+ }
+
+ void paint(sky.Canvas canvas, Rect rect) {
+ _paintBackgroundColor(canvas, rect);
+ _paintBackgroundImage(canvas, rect);
+ _paintBorder(canvas, rect);
+ }
+}
diff --git a/packages/flutter/lib/painting/shadows.dart b/packages/flutter/lib/painting/shadows.dart
new file mode 100644
index 0000000..7124895
--- /dev/null
+++ b/packages/flutter/lib/painting/shadows.dart
@@ -0,0 +1,29 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+/// Helper class to build a Paint DrawLooper that adds shadows to the Paint's
+/// operation.
+class ShadowDrawLooperBuilder {
+ var builder_ = new sky.LayerDrawLooperBuilder();
+
+ void addShadow(sky.Offset offset, sky.Color color, double blur) {
+ builder_.addLayerOnTop(
+ new sky.DrawLooperLayerInfo()
+ ..setPaintBits(sky.PaintBits.all)
+ ..setOffset(offset)
+ ..setColorMode(sky.TransferMode.src),
+ (sky.Paint layerPaint) {
+ layerPaint.color = color;
+ layerPaint.setMaskFilter(
+ new sky.MaskFilter.blur(sky.BlurStyle.normal, blur));
+ });
+ }
+
+ sky.DrawLooper build() {
+ builder_.addLayerOnTop(new sky.DrawLooperLayerInfo(), (_) {});
+ return builder_.build();
+ }
+}
diff --git a/packages/flutter/lib/painting/text_style.dart b/packages/flutter/lib/painting/text_style.dart
new file mode 100644
index 0000000..1ebc558
--- /dev/null
+++ b/packages/flutter/lib/painting/text_style.dart
@@ -0,0 +1,206 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky';
+
+enum FontWeight { w100, w200, w300, w400, w500, w600, w700, w800, w900 }
+const normal = FontWeight.w400;
+const bold = FontWeight.w700;
+
+enum TextAlign { left, right, center }
+
+enum TextDecoration { none, underline, overline, lineThrough }
+const underline = const <TextDecoration>[TextDecoration.underline];
+const overline = const <TextDecoration>[TextDecoration.overline];
+const lineThrough = const <TextDecoration>[TextDecoration.lineThrough];
+
+enum TextDecorationStyle { solid, double, dotted, dashed, wavy }
+
+class TextStyle {
+ const TextStyle({
+ this.color,
+ this.fontFamily,
+ this.fontSize,
+ this.fontWeight,
+ this.textAlign,
+ this.height,
+ this.decoration,
+ this.decorationColor,
+ this.decorationStyle
+ });
+
+ final Color color;
+ final String fontFamily;
+ final double fontSize; // in pixels
+ final FontWeight fontWeight;
+ final TextAlign textAlign;
+ final double height; // multiple of fontSize
+ final List<TextDecoration> decoration; // TODO(ianh): Switch this to a Set<> once Dart supports constant Sets
+ final Color decorationColor;
+ final TextDecorationStyle decorationStyle;
+
+ TextStyle copyWith({
+ Color color,
+ String fontFamily,
+ double fontSize,
+ FontWeight fontWeight,
+ TextAlign textAlign,
+ double height,
+ List<TextDecoration> decoration,
+ Color decorationColor,
+ TextDecorationStyle decorationStyle
+ }) {
+ return new TextStyle(
+ color: color != null ? color : this.color,
+ fontFamily: fontFamily != null ? fontFamily : this.fontFamily,
+ fontSize: fontSize != null ? fontSize : this.fontSize,
+ fontWeight: fontWeight != null ? fontWeight : this.fontWeight,
+ textAlign: textAlign != null ? textAlign : this.textAlign,
+ height: height != null ? height : this.height,
+ decoration: decoration != null ? decoration : this.decoration,
+ decorationColor: decorationColor != null ? decorationColor : this.decorationColor,
+ decorationStyle: decorationStyle != null ? decorationStyle : this.decorationStyle
+ );
+ }
+
+ TextStyle merge(TextStyle other) {
+ return copyWith(
+ color: other.color,
+ fontFamily: other.fontFamily,
+ fontSize: other.fontSize,
+ fontWeight: other.fontWeight,
+ textAlign: other.textAlign,
+ height: other.height,
+ decoration: other.decoration,
+ decorationColor: other.decorationColor,
+ decorationStyle: other.decorationStyle
+ );
+ }
+
+ static String _colorToCSSString(Color color) {
+ return 'rgba(${color.red}, ${color.green}, ${color.blue}, ${color.alpha / 255.0})';
+ }
+
+ static String _fontFamilyToCSSString(String fontFamily) {
+ // TODO(hansmuller): escape the fontFamily string.
+ return fontFamily;
+ }
+
+ static String _decorationToCSSString(List<TextDecoration> decoration) {
+ assert(decoration != null);
+ const toCSS = const <TextDecoration, String>{
+ TextDecoration.none: 'none',
+ TextDecoration.underline: 'underline',
+ TextDecoration.overline: 'overline',
+ TextDecoration.lineThrough: 'lineThrough'
+ };
+ return decoration.map((d) => toCSS[d]).join(' ');
+ }
+
+ static String _decorationStyleToCSSString(TextDecorationStyle decorationStyle) {
+ assert(decorationStyle != null);
+ const toCSS = const <TextDecorationStyle, String>{
+ TextDecorationStyle.solid: 'solid',
+ TextDecorationStyle.double: 'double',
+ TextDecorationStyle.dotted: 'dotted',
+ TextDecorationStyle.dashed: 'dashed',
+ TextDecorationStyle.wavy: 'wavy'
+ };
+ return toCSS[decorationStyle];
+ }
+
+ void applyToCSSStyle(CSSStyleDeclaration cssStyle) {
+ if (color != null) {
+ cssStyle['color'] = _colorToCSSString(color);
+ }
+ if (fontFamily != null) {
+ cssStyle['font-family'] = _fontFamilyToCSSString(fontFamily);
+ }
+ if (fontSize != null) {
+ cssStyle['font-size'] = '${fontSize}px';
+ }
+ if (fontWeight != null) {
+ cssStyle['font-weight'] = const {
+ FontWeight.w100: '100',
+ FontWeight.w200: '200',
+ FontWeight.w300: '300',
+ FontWeight.w400: '400',
+ FontWeight.w500: '500',
+ FontWeight.w600: '600',
+ FontWeight.w700: '700',
+ FontWeight.w800: '800',
+ FontWeight.w900: '900'
+ }[fontWeight];
+ }
+ if (textAlign != null) {
+ cssStyle['text-align'] = const {
+ TextAlign.left: 'left',
+ TextAlign.right: 'right',
+ TextAlign.center: 'center',
+ }[textAlign];
+ }
+ if (height != null) {
+ cssStyle['line-height'] = '${height}';
+ }
+ if (decoration != null) {
+ cssStyle['text-decoration'] = _decorationToCSSString(decoration);
+ if (decorationColor != null)
+ cssStyle['text-decoration-color'] = _colorToCSSString(decorationColor);
+ if (decorationStyle != null)
+ cssStyle['text-decoration-style'] = _decorationStyleToCSSString(decorationStyle);
+ }
+ }
+
+ bool operator ==(other) {
+ if (identical(this, other))
+ return true;
+ return other is TextStyle &&
+ color == other.color &&
+ fontFamily == other.fontFamily &&
+ fontSize == other.fontSize &&
+ fontWeight == other.fontWeight &&
+ textAlign == other.textAlign &&
+ decoration == other.decoration &&
+ decorationColor == other.decorationColor &&
+ decorationStyle == other.decorationStyle;
+ }
+
+ int get hashCode {
+ // Use Quiver: https://github.com/domokit/mojo/issues/236
+ int value = 373;
+ value = 37 * value + color.hashCode;
+ value = 37 * value + fontFamily.hashCode;
+ value = 37 * value + fontSize.hashCode;
+ value = 37 * value + fontWeight.hashCode;
+ value = 37 * value + textAlign.hashCode;
+ value = 37 * value + decoration.hashCode;
+ value = 37 * value + decorationColor.hashCode;
+ value = 37 * value + decorationStyle.hashCode;
+ return value;
+ }
+
+ String toString([String prefix = '']) {
+ List<String> result = [];
+ if (color != null)
+ result.add('${prefix}color: $color');
+ // TODO(hansmuller): escape the fontFamily string.
+ if (fontFamily != null)
+ result.add('${prefix}fontFamily: "${fontFamily}"');
+ if (fontSize != null)
+ result.add('${prefix}fontSize: $fontSize');
+ if (fontWeight != null)
+ result.add('${prefix}fontWeight: $fontWeight');
+ if (textAlign != null)
+ result.add('${prefix}textAlign: $textAlign');
+ if (decoration != null)
+ result.add('${prefix}decoration: $decoration');
+ if (decorationColor != null)
+ result.add('${prefix}decorationColor: $decorationColor');
+ if (decorationStyle != null)
+ result.add('${prefix}decorationStyle: $decorationStyle');
+ if (result.isEmpty)
+ return '${prefix}<no style specified>';
+ return result.join('\n');
+ }
+}
diff --git a/packages/flutter/lib/rendering/README.md b/packages/flutter/lib/rendering/README.md
new file mode 100644
index 0000000..d14a48a
--- /dev/null
+++ b/packages/flutter/lib/rendering/README.md
@@ -0,0 +1,389 @@
+Sky Rendering
+=============
+
+The Sky render tree is a low-level layout and painting system based on a
+retained tree of objects that inherit from [`RenderObject`](object.dart). Most
+developers using Sky will not need to interact directly with the rendering tree.
+Instead, most developers should use [Sky widgets](../widgets/README.md), which
+are built using the render tree.
+
+Overview
+--------
+
+### Base Model
+
+The base class for every node in the render tree is
+[`RenderObject`](object.dart), which defines the base layout model. The base
+layout mode is extremely general and can accomodate a large number of more
+concrete layout models that can co-exist in the same tree. For example, the base
+model does not commit to a fixed number of dimensions or even a cartesian
+coordinate system. In this way, a single render tree can contain render objects
+operating in three-dimensional space together with other render objects
+operating in two-dimensional space, e.g., on the face of a cube in the three-
+dimensional space. Moreover, the two-dimensional layout might be partially
+computed in cartesian coordinates and partially computed in polar coordinates.
+These distinct models can interact during layout, for example determining the
+size of the cube by the height of a block of text on the cube's face.
+
+Not entirely free-wheeling, the base model does impose some structure on the
+render tree:
+
+ * Subclasses of `RenderObject` must implement a `performLayout` function that
+ takes as input a `constraints` object provided by its parent. `RenderObject`
+ has no opinion about the structure of this object and different layout models
+ use different types of constraints. However, whatever type they choose must
+ implement `operator==` in such a way that `performLayout` produces the same
+ output for two `constraints` objects that are `operator==`.
+
+ * Implementations of `performLayout` are expected to call `layout` on their
+ children. When calling `layout`, a `RenderObject` must use the
+ `parentUsesSize` parameter to declare whether its `performLayout` function
+ depends on information read from the child. If the parent doesn't declare
+ that it uses the child's size, the edge from the parent to the child becomes
+ a _relayout boundary_, which means the child (and its subtree) might undergo
+ layout without the parent undergoing layout.
+
+ * Subclasses of `RenderObject` must implement a `paint` function that draws a
+ visual representation of the object onto a `PaintingCanvas`. If
+ the `RenderObject` has children, the `RenderObject` is responsible for
+ painting its children using the `paintChild` function on the
+ `PaintingCanvas`.
+
+ * Subclasses of `RenderObject` must call `adoptChild` whenever they add a
+ child. Similarly, they must call `dropChild` whenever they remove a child.
+
+ * Most subclasses of `RenderObject` will implement a `hitTest` function that
+ lets clients query the render tree for objects that intersect with a given
+ user input location. `RenderObject` itself does not impose a particular
+ type signature on `hitTest`, but most implementations will take an argument
+ of type `HitTestResult` (or, more likely, a model-specific subclass of
+ `HitTestResult`) as well as an object that describes the location at which
+ the user provided input (e.g., a `Point` for a two-dimensional cartesian
+ model).
+
+ * Finally, subclasses of `RenderObject` can override the default, do-nothing
+ implemenations of `handleEvent` and `rotate` to respond to user input and
+ screen rotation, respectively.
+
+The base model also provides two mixins for common child models:
+
+ * `RenderObjectWithChildMixin` is useful for subclasses of `RenderObject` that
+ have a unique child.
+
+ * `ContainerRenderObjectMixin` is useful for subclasses of `RenderObject` that
+ have a child list.
+
+Subclasses of `RenderObject` are not required to use either of these child
+models and are free to invent novel child models for their specific use cases.
+
+### Parent Data
+
+TODO(ianh): Describe the parent data concept.
+
+The `setupParentData()` method is automatically called for each child
+when the child's parent is changed. However, if you need to
+preinitialise the `parentData` member to set its values before you add
+a node to its parent, you can preemptively call that future parent's
+`setupParentData()` method with the future child as the argument.
+
+TODO(ianh): Discuss putting per-child configuration information for
+the parent on the child's parentData.
+
+If you change a child's parentData dynamically, you must also call
+markNeedsLayout() on the parent, otherwise the new information will
+not take effect until something else triggers a layout.
+
+### Box Model
+
+#### Dimensions
+
+All dimensions are expressed as logical pixel units. Font sizes are
+also in logical pixel units. Logical pixel units are approximately
+96dpi, but the precise value varies based on the hardware, in such a
+way as to optimise for performance and rendering quality while keeping
+interfaces roughly the same size across devices regardless of the
+hardware pixel density.
+
+Logical pixel units are automatically converted to device (hardware)
+pixels when painting by applying an appropriate scale factor.
+
+TODO(ianh): Define how you actually get the device pixel ratio if you
+need it, and document best practices around that.
+
+#### EdgeDims
+
+#### BoxConstraints
+
+### Bespoke Models
+
+
+Using the provided subclasses
+-----------------------------
+
+### render_box.dart
+#### RenderConstrainedBox
+#### RenderShrinkWrapWidth
+#### RenderOpacity
+#### RenderColorFilter
+#### RenderClipRect
+#### RenderClipOval
+#### RenderPadding
+#### RenderPositionedBox
+#### RenderImage
+#### RenderDecoratedBox
+#### RenderTransform
+#### RenderSizeObserver
+#### RenderCustomPaint
+### RenderBlock (render_block.dart)
+### RenderFlex (render_flex.dart)
+### RenderParagraph (render_paragraph.dart)
+### RenderStack (render_stack.dart)
+
+Writing new subclasses
+----------------------
+
+### The RenderObject contract
+
+If you want to define a `RenderObject` that uses a new coordinate
+system, then you should inherit straight from `RenderObject`. Examples
+of doing this can be found in [`RenderBox`](box.dart), which deals in
+rectangles in cartesian space, and in the [sector_layout.dart
+example](../../example/rendering/sector_layout.dart), which
+implements a toy model based on polar coordinates. The `RenderView`
+class, which is used internally to adapt from the host system to this
+rendering framework, is another example.
+
+A subclass of `RenderObject` must fulfill the following contract:
+
+* It must fulfill the [AbstractNode contract](../base/README.md) when
+ dealing with children. Using `RenderObjectWithChildMixin` or
+ `ContainerRenderObjectMixin` can make this easier.
+
+* Information about the child managed by the parent, e.g. typically
+ position information and configuration for the parent's layout,
+ should be stored on the `parentData` member; to this effect, a
+ ParentData subclass should be defined and the `setupParentData()`
+ method should be overriden to initialise the child's parent data
+ appropriately.
+
+* Layout constraints must be expressed in a Constraints subclass. This
+ subclass must implement `operator==` (and `hashCode`).
+
+* Whenever the layout needs updating, the `markNeedsLayout()` method
+ should be called.
+
+* Whenever the rendering needs updating without changing the layout,
+ the `markNeedsPaint()` method should be called. (Calling
+ `markNeedsLayout()` implies a call to `markNeedsPaint()`, so you
+ don't need to call both.)
+
+* The subclass must override `performLayout()` to perform layout based
+ on the constraints given in the `constraints` member. Each object is
+ responsible for sizing itself; positioning must be done by the
+ object calling `performLayout()`. Whether positioning is done before
+ or after the child's layout is a decision to be made by the class.
+ TODO(ianh): Document sizedByParent, performResize(), rotate
+
+* TODO(ianh): Document painting, hit testing, debug*
+
+#### The ParentData contract
+
+#### Using RenderObjectWithChildMixin
+
+#### Using ContainerRenderObjectMixin (and ContainerParentDataMixin)
+
+This mixin can be used for classes that have a child list, to manage
+the list. It implements the list using linked list pointers in the
+`parentData` structure.
+
+TODO(ianh): Document this mixin.
+
+Subclasses must follow the following contract, in addition to the
+contracts of any other classes they subclass:
+
+* If the constructor takes a list of children, it must call addAll()
+ with that list.
+
+TODO(ianh): Document how to walk the children.
+
+### The RenderBox contract
+
+A `RenderBox` subclass is required to implement the following contract:
+
+* It must fulfill the [AbstractNode contract](../base/README.md) when
+ dealing with children. Note that using `RenderObjectWithChildMixin`
+ or `ContainerRenderObjectMixin` takes care of this for you, assuming
+ you fulfill their contract instead.
+
+* If it has any data to store on its children, it must define a
+ BoxParentData subclass and override setupParentData() to initialise
+ the child's parent data appropriately, as in the following example.
+ (If the subclass has an opinion about what type its children must
+ be, e.g. the way that `RenderBlock` wants its children to be
+ `RenderBox` nodes, then change the `setupParentData()` signature
+ accordingly, to catch misuse of the method.)
+
+```dart
+ class FooParentData extends BoxParentData { ... }
+
+ // In RenderFoo
+ void setupParentData(RenderObject child) {
+ if (child.parentData is! FooParentData)
+ child.parentData = new FooParentData();
+ }
+```
+
+* The class must encapsulate a layout algorithm that has the following
+ features:
+
+** It uses as input a set of constraints, described by a
+ BoxConstraints object, and a set of zero or more children, as
+ determined by the class itself, and has as output a Size (which is
+ set on the object's own `size` field), and positions for each child
+ (which are set on the children's `parentData.position` field).
+
+** The algorithm can decide the Size in one of two ways: either
+ exclusively based on the given constraints (i.e. it is effectively
+ sized entirely by its parent), or based on those constraints and
+ the dimensions of the children.
+
+ In the former case, the class must have a sizedByParent getter that
+ returns true, and it must have a `performResize()` method that uses
+ the object's `constraints` member to size itself by setting the
+ `size` member. The size must be consistent, a given set of
+ constraints must always result in the same size.
+
+ In the latter case, it will inherit the default `sizedByParent`
+ getter that returns false, and it will size itself in the
+ `performLayout()` function described below.
+
+ The `sizedByParent` distinction is purely a performance
+ optimisation. It allows nodes that only set their size based on the
+ incoming constraints to skip that logic when they need to be
+ re-laid-out, and, more importantly, it allows the layout system to
+ treat the node as a _layout boundary_, which reduces the amount of
+ work that needs to happen when the node is marked as needing
+ layout.
+
+* The following methods must report numbers consistent with the output
+ of the layout algorithm used:
+
+** `double getMinIntrinsicWidth(BoxConstraints constraints)` must
+ return the width that fits within the given constraints below which
+ making the width constraint smaller would not increase the
+ resulting height, or, to put it another way, the narrowest width at
+ which the box can be rendered without failing to lay the children
+ out within itself.
+
+ For example, the minimum intrinsic width of a piece of text like "a
+ b cd e", where the text is allowed to wrap at spaces, would be the
+ width of "cd".
+
+** `double getMaxIntrinsicWidth(BoxConstraints constraints)` must
+ return the width that fits within the given constraints above which
+ making the width constraint larger would not decrease the resulting
+ height.
+
+ For example, the maximum intrinsic width of a piece of text like "a
+ b cd e", where the text is allowed to wrap at spaces, would be the
+ width of the whole "a b cd e" string, with no wrapping.
+
+** `double getMinIntrinsicHeight(BoxConstraints constraints)` must
+ return the height that fits within the given constraints below
+ which making the height constraint smaller would not increase the
+ resulting width, or, to put it another way, the shortest height at
+ which the box can be rendered without failing to lay the children
+ out within itself.
+
+ The minimum intrinsic height of a width-in-height-out algorithm,
+ like English text layout, would be the height of the text at the
+ width that would be used given the constraints. So for instance,
+ given the text "hello world", if the constraints were such that it
+ had to wrap at the space, then the minimum intrinsic height would
+ be the height of two lines (and the appropriate line spacing). If
+ the constraints were such that it all fit on one line, then it
+ would be the height of one line.
+
+** `double getMaxIntrinsicHeight(BoxConstraints constraints)` must
+ return the height that fits within the given constraints above
+ which making the height constraint larger would not decrease the
+ resulting width. If the height depends exclusively on the width,
+ and the width does not depend on the height, then
+ `getMinIntrinsicHeight()` and `getMaxIntrinsicHeight()` will return the
+ same number given the same constraints.
+
+ In the case of English text, the maximum intrinsic height is the
+ same as the minimum instrinsic height.
+
+* The box must have a `performLayout()` method that encapsulates the
+ layout algorithm that this class represents. It is responsible for
+ telling the children to lay out, positioning the children, and, if
+ sizedByParent is false, sizing the object.
+
+ Specifically, the method must walk over the object's children, if
+ any, and for each one call `child.layout()` with a BoxConstraints
+ object as the first argument, and a second argument named
+ `parentUsesSize` which is set to true if the child's resulting size
+ will in any way influence the layout, and omitted (or set to false)
+ if the child's resulting size is ignored. The children's positions
+ (`child.parentData.position`) must then be set.
+
+ (Calling `layout()` can result in the child's own `performLayout()`
+ method being called recursively, if the child also needs to be laid
+ out. If the child's constraints haven't changed and the child is not
+ marked as needing layout, however, this will be skipped.)
+
+ The parent must not set a child's `size` directly. If the parent
+ wants to influence the child's size, it must do so via the
+ constraints that it passes to the child's `layout()` method.
+
+ If an object's `sizedByParent` is false, then its `performLayout()`
+ must also size the object (by setting `size`), otherwise, the size
+ must be left untouched.
+
+* The `size` member must never be set to an infinite value.
+
+* The box must also implement `hitTestChildren()`.
+ TODO(ianh): Define this better
+
+* The box must also implement `paint()`.
+ TODO(ianh): Define this better
+
+#### Using RenderProxyBox
+
+### The Hit Testing contract
+
+
+Performance rules of thumb
+--------------------------
+
+* Avoid using transforms where mere maths would be sufficient (e.g.
+ draw your rectangle at x,y rather than translating by x,y and
+ drawing it at 0,0).
+
+* Avoid using save/restore on canvases.
+
+
+Useful debugging tools
+----------------------
+
+This is a quick way to dump the entire render tree to the console every frame.
+This can be quite useful in figuring out exactly what is going on when
+working with the render tree.
+
+```dart
+import 'package:sky/rendering/sky_binding.dart';
+import 'package:sky/base/scheduler.dart' as scheduler;
+
+scheduler.addPersistentFrameCallback((_) {
+ SkyBinding.instance.debugDumpRenderTree();
+});
+```
+
+
+Dependencies
+------------
+
+ * [`package:sky/base`](../base)
+ * [`package:sky/mojo`](../mojo)
+ * [`package:sky/animation`](../mojo)
diff --git a/packages/flutter/lib/rendering/auto_layout.dart b/packages/flutter/lib/rendering/auto_layout.dart
new file mode 100644
index 0000000..1942760
--- /dev/null
+++ b/packages/flutter/lib/rendering/auto_layout.dart
@@ -0,0 +1,229 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:cassowary/cassowary.dart' as al;
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+
+/// Hosts the edge parameters and vends useful methods to construct expressions
+/// for constraints. Also sets up and manages implicit constraints and edit
+/// variables. Used as a mixin by layout containers and parent data instances
+/// of render boxes taking part in auto layout
+abstract class _AutoLayoutParamMixin {
+ // Ideally, the edges would all be final, but then they would have to be
+ // initialized before the constructor. Not sure how to do that using a Mixin
+ al.Param _leftEdge;
+ al.Param _rightEdge;
+ al.Param _topEdge;
+ al.Param _bottomEdge;
+
+ List<al.Constraint> _implicitConstraints;
+
+ al.Param get leftEdge => _leftEdge;
+ al.Param get rightEdge => _rightEdge;
+ al.Param get topEdge => _topEdge;
+ al.Param get bottomEdge => _bottomEdge;
+
+ al.Expression get width => _rightEdge - _leftEdge;
+ al.Expression get height => _bottomEdge - _topEdge;
+
+ al.Expression get horizontalCenter => (_leftEdge + _rightEdge) / al.cm(2.0);
+ al.Expression get verticalCenter => (_topEdge + _bottomEdge) / al.cm(2.0);
+
+ void _setupLayoutParameters(dynamic context) {
+ _leftEdge = new al.Param.withContext(context);
+ _rightEdge = new al.Param.withContext(context);
+ _topEdge = new al.Param.withContext(context);
+ _bottomEdge = new al.Param.withContext(context);
+ }
+
+ void _setupEditVariablesInSolver(al.Solver solver, double priority) {
+ solver.addEditVariables([
+ _leftEdge.variable,
+ _rightEdge.variable,
+ _topEdge.variable,
+ _bottomEdge.variable], priority);
+ }
+
+ void _applyEditsAtSize(al.Solver solver, Size size) {
+ solver.suggestValueForVariable(_leftEdge.variable, 0.0);
+ solver.suggestValueForVariable(_topEdge.variable, 0.0);
+ solver.suggestValueForVariable(_bottomEdge.variable, size.height);
+ solver.suggestValueForVariable(_rightEdge.variable, size.width);
+ }
+
+ /// Called when the solver has updated at least one of the layout parameters
+ /// of this object. The object is now responsible for applying this update to
+ /// it other properties (if necessary)
+ void _applyAutolayoutParameterUpdates();
+
+ /// Returns the set of implicit constraints that need to be applied to all
+ /// instances of this class when they are moved into a render object with an
+ /// active solver. If no implicit constraints needs to be applied, the object
+ /// may return null.
+ List<al.Constraint> _constructImplicitConstraints();
+
+ void _setupImplicitConstraints(al.Solver solver) {
+ List<al.Constraint> implicit = _constructImplicitConstraints();
+
+ if (implicit == null || implicit.length == 0) {
+ return;
+ }
+
+ al.Result result = solver.addConstraints(implicit);
+ assert(result == al.Result.success);
+
+ _implicitConstraints = implicit;
+ }
+
+ void _removeImplicitConstraints(al.Solver solver) {
+ if (_implicitConstraints == null || _implicitConstraints.length == 0) {
+ return;
+ }
+
+ al.Result result = solver.removeConstraints(_implicitConstraints);
+ assert(result == al.Result.success);
+
+ _implicitConstraints = null;
+ }
+}
+
+class AutoLayoutParentData extends BoxParentData
+ with ContainerParentDataMixin<RenderBox>, _AutoLayoutParamMixin {
+
+ AutoLayoutParentData(this._renderBox) {
+ _setupLayoutParameters(this);
+ }
+
+ final RenderBox _renderBox;
+
+ void _applyAutolayoutParameterUpdates() {
+ // This is called by the parent's layout function
+ // to lay our box out.
+ assert(_renderBox.parentData == this);
+ assert(_renderBox.parent is RenderAutoLayout);
+ assert((_renderBox.parent as RenderAutoLayout).debugDoingThisLayout); // TODO(ianh): Remove cast once the analyzer is cleverer
+ BoxConstraints size = new BoxConstraints.tightFor(
+ width: _rightEdge.value - _leftEdge.value,
+ height: _bottomEdge.value - _topEdge.value
+ );
+ _renderBox.layout(size);
+ position = new Point(_leftEdge.value, _topEdge.value);
+ }
+
+ List<al.Constraint> _constructImplicitConstraints() {
+ return [
+ _leftEdge >= al.cm(0.0), // The left edge must be positive.
+ _rightEdge >= _leftEdge, // Width must be positive.
+ ];
+ }
+
+}
+
+class RenderAutoLayout extends RenderBox
+ with ContainerRenderObjectMixin<RenderBox, AutoLayoutParentData>,
+ RenderBoxContainerDefaultsMixin<RenderBox, AutoLayoutParentData>,
+ _AutoLayoutParamMixin {
+
+ RenderAutoLayout({ List<RenderBox> children }) {
+ _setupLayoutParameters(this);
+ _setupEditVariablesInSolver(_solver, al.Priority.required - 1);
+ addAll(children);
+ }
+
+ final al.Solver _solver = new al.Solver();
+ List<al.Constraint> _explicitConstraints = new List<al.Constraint>();
+
+ /// Adds all the given constraints to the solver. Either all constraints are
+ /// added or none
+ al.Result addConstraints(List<al.Constraint> constraints) {
+ al.Result result = _solver.addConstraints(constraints);
+ if (result == al.Result.success) {
+ markNeedsLayout();
+ _explicitConstraints.addAll(constraints);
+ }
+ return result;
+ }
+
+ /// Add the given constraint to the solver.
+ al.Result addConstraint(al.Constraint constraint) {
+ al.Result result = _solver.addConstraint(constraint);
+
+ if (result == al.Result.success) {
+ markNeedsLayout();
+ _explicitConstraints.add(constraint);
+ }
+
+ return result;
+ }
+
+ /// Removes all explicitly added constraints.
+ al.Result clearAllConstraints() {
+ al.Result result = _solver.removeConstraints(_explicitConstraints);
+
+ if (result == al.Result.success) {
+ markNeedsLayout();
+ _explicitConstraints = new List<al.Constraint>();
+ }
+
+ return result;
+ }
+
+ void adoptChild(RenderObject child) {
+ // Make sure to call super first to setup the parent data
+ super.adoptChild(child);
+ child.parentData._setupImplicitConstraints(_solver);
+ }
+
+ void dropChild(RenderObject child) {
+ child.parentData._removeImplicitConstraints(_solver);
+ super.dropChild(child);
+ }
+
+ void setupParentData(RenderObject child) {
+ if (child.parentData is! AutoLayoutParentData)
+ child.parentData = new AutoLayoutParentData(child);
+ }
+
+ bool get sizedByParent => true;
+
+ void performResize() {
+ size = constraints.biggest;
+ }
+
+ void performLayout() {
+ // Step 1: Update dimensions of self
+ _applyEditsAtSize(_solver, size);
+
+ // Step 2: Resolve solver updates and flush parameters
+
+ // We don't iterate over the children, instead, we ask the solver to tell
+ // us the updated parameters. Attached to the parameters (via the context)
+ // are the _AutoLayoutParamMixin instances.
+ for (_AutoLayoutParamMixin update in _solver.flushUpdates()) {
+ update._applyAutolayoutParameterUpdates();
+ }
+ }
+
+ void _applyAutolayoutParameterUpdates() {
+ // Nothing to do since the size update has already been presented to the
+ // solver as an edit variable modification. The invokation of this method
+ // only indicates that the value has been flushed to the variable.
+ }
+
+ void hitTestChildren(HitTestResult result, {Point position}) {
+ defaultHitTestChildren(result, position: position);
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ defaultPaint(canvas, offset);
+ }
+
+ List<al.Constraint> _constructImplicitConstraints() {
+ // Only edits variables are present on layout containers. If, in the future,
+ // implicit constraints (for say margins, padding, etc.) need to be added,
+ // they must be returned from here.
+ return null;
+ }
+}
diff --git a/packages/flutter/lib/rendering/block.dart b/packages/flutter/lib/rendering/block.dart
new file mode 100644
index 0000000..4274016
--- /dev/null
+++ b/packages/flutter/lib/rendering/block.dart
@@ -0,0 +1,216 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+
+class BlockParentData extends BoxParentData with ContainerParentDataMixin<RenderBox> { }
+
+abstract class RenderBlockBase extends RenderBox with ContainerRenderObjectMixin<RenderBox, BlockParentData>,
+ RenderBoxContainerDefaultsMixin<RenderBox, BlockParentData> {
+
+ // lays out RenderBox children in a vertical stack
+ // uses the maximum width provided by the parent
+
+ RenderBlockBase({
+ List<RenderBox> children
+ }) {
+ addAll(children);
+ }
+
+ void setupParentData(RenderBox child) {
+ if (child.parentData is! BlockParentData)
+ child.parentData = new BlockParentData();
+ }
+
+ double _childrenHeight;
+ double get childrenHeight => _childrenHeight;
+
+ void markNeedsLayout() {
+ _childrenHeight = null;
+ super.markNeedsLayout();
+ }
+
+ void performLayout() {
+ assert(constraints is BoxConstraints);
+ double width = constraints.constrainWidth(constraints.maxWidth);
+ BoxConstraints innerConstraints = new BoxConstraints.tightFor(width: width);
+ double y = 0.0;
+ RenderBox child = firstChild;
+ while (child != null) {
+ child.layout(innerConstraints, parentUsesSize: true);
+ assert(child.parentData is BlockParentData);
+ child.parentData.position = new Point(0.0, y);
+ y += child.size.height;
+ child = child.parentData.nextSibling;
+ }
+ _childrenHeight = y;
+ }
+
+}
+
+class RenderBlock extends RenderBlockBase {
+
+ // sizes itself to the height of its child stack
+
+ RenderBlock({ List<RenderBox> children }) : super(children: children);
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ double width = 0.0;
+ BoxConstraints innerConstraints = constraints.widthConstraints();
+ RenderBox child = firstChild;
+ while (child != null) {
+ width = math.max(width, child.getMinIntrinsicWidth(innerConstraints));
+ assert(child.parentData is BlockParentData);
+ child = child.parentData.nextSibling;
+ }
+ return width;
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ double width = 0.0;
+ BoxConstraints innerConstraints = constraints.widthConstraints();
+ RenderBox child = firstChild;
+ while (child != null) {
+ width = math.max(width, child.getMaxIntrinsicWidth(innerConstraints));
+ assert(child.parentData is BlockParentData);
+ child = child.parentData.nextSibling;
+ }
+ return width;
+ }
+
+ double _getIntrinsicHeight(BoxConstraints constraints) {
+ double height = 0.0;
+ double width = constraints.constrainWidth(constraints.maxWidth);
+ BoxConstraints innerConstraints = new BoxConstraints.tightFor(width: width);
+ RenderBox child = firstChild;
+ while (child != null) {
+ double childHeight = child.getMinIntrinsicHeight(innerConstraints);
+ assert(childHeight == child.getMaxIntrinsicHeight(innerConstraints));
+ height += childHeight;
+ assert(child.parentData is BlockParentData);
+ child = child.parentData.nextSibling;
+ }
+ return height;
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ return _getIntrinsicHeight(constraints);
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ return _getIntrinsicHeight(constraints);
+ }
+
+ double computeDistanceToActualBaseline(TextBaseline baseline) {
+ return defaultComputeDistanceToFirstActualBaseline(baseline);
+ }
+
+ void performLayout() {
+ assert(constraints.maxHeight >= double.INFINITY);
+ super.performLayout();
+ size = constraints.constrain(new Size(constraints.maxWidth, childrenHeight));
+ assert(!size.isInfinite);
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ defaultPaint(canvas, offset);
+ }
+
+ void hitTestChildren(HitTestResult result, { Point position }) {
+ defaultHitTestChildren(result, position: position);
+ }
+
+}
+
+class RenderBlockViewport extends RenderBlockBase {
+
+ // sizes itself to the given constraints
+ // at the start of layout, calls callback
+
+ RenderBlockViewport({
+ LayoutCallback callback,
+ List<RenderBox> children,
+ double startOffset: 0.0
+ }) : _callback = callback, _startOffset = startOffset, super(children: children);
+
+ bool _inCallback = false;
+
+ LayoutCallback _callback;
+ LayoutCallback get callback => _callback;
+ void set callback(LayoutCallback value) {
+ assert(!_inCallback);
+ if (value == _callback)
+ return;
+ _callback = value;
+ markNeedsLayout();
+ }
+
+ // you can set this from within the callback if necessary
+ double _startOffset;
+ double get startOffset => _startOffset;
+ void set startOffset(double value) {
+ if (value == _startOffset)
+ return;
+ _startOffset = value;
+ if (!_inCallback)
+ markNeedsPaint();
+ }
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ return constraints.constrainWidth();
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ return constraints.constrainWidth();
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ return constraints.constrainHeight();
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ return constraints.constrainHeight();
+ }
+
+ // We don't override computeDistanceToActualBaseline(), because we
+ // want the default behaviour (returning null). Otherwise, as you
+ // scroll the RenderBlockViewport, it would shift in its parent if
+ // the parent was baseline-aligned, which makes no sense.
+
+ bool get sizedByParent => true;
+
+ void performResize() {
+ size = constraints.biggest;
+ assert(!size.isInfinite);
+ }
+
+ bool get debugDoesLayoutWithCallback => true;
+ void performLayout() {
+ assert(constraints.maxHeight < double.INFINITY);
+ if (_callback != null) {
+ try {
+ _inCallback = true;
+ invokeLayoutCallback(_callback);
+ } finally {
+ _inCallback = false;
+ }
+ }
+ super.performLayout();
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ canvas.save();
+ canvas.clipRect(offset & size);
+ defaultPaint(canvas, offset.translate(0.0, startOffset));
+ canvas.restore();
+ }
+
+ void hitTestChildren(HitTestResult result, { Point position }) {
+ defaultHitTestChildren(result, position: position + new Offset(0.0, -startOffset));
+ }
+
+}
diff --git a/packages/flutter/lib/rendering/box.dart b/packages/flutter/lib/rendering/box.dart
new file mode 100644
index 0000000..10fad5c
--- /dev/null
+++ b/packages/flutter/lib/rendering/box.dart
@@ -0,0 +1,1699 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+import 'dart:sky' as sky;
+
+import 'package:sky/base/debug.dart';
+import 'package:sky/painting/box_painter.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:vector_math/vector_math.dart';
+
+export 'package:sky/painting/box_painter.dart';
+
+// GENERIC BOX RENDERING
+// Anything that has a concept of x, y, width, height is going to derive from this
+
+// This class should only be used in debug builds
+class _DebugSize extends Size {
+ _DebugSize(Size source, this._owner, this._canBeUsedByParent): super.copy(source);
+ final RenderBox _owner;
+ final bool _canBeUsedByParent;
+}
+
+class EdgeDims {
+ // used for e.g. padding
+ const EdgeDims(this.top, this.right, this.bottom, this.left);
+ const EdgeDims.all(double value)
+ : top = value, right = value, bottom = value, left = value;
+ const EdgeDims.only({ this.top: 0.0,
+ this.right: 0.0,
+ this.bottom: 0.0,
+ this.left: 0.0 });
+ const EdgeDims.symmetric({ double vertical: 0.0,
+ double horizontal: 0.0 })
+ : top = vertical, left = horizontal, bottom = vertical, right = horizontal;
+
+ final double top;
+ final double right;
+ final double bottom;
+ final double left;
+
+ bool operator ==(other) {
+ if (identical(this, other))
+ return true;
+ return other is EdgeDims
+ && top == other.top
+ && right == other.right
+ && bottom == other.bottom
+ && left == other.left;
+ }
+
+ int get hashCode {
+ int value = 373;
+ value = 37 * value + top.hashCode;
+ value = 37 * value + left.hashCode;
+ value = 37 * value + bottom.hashCode;
+ value = 37 * value + right.hashCode;
+ return value;
+ }
+ String toString() => "EdgeDims($top, $right, $bottom, $left)";
+}
+
+class BoxConstraints extends Constraints {
+ const BoxConstraints({
+ this.minWidth: 0.0,
+ this.maxWidth: double.INFINITY,
+ this.minHeight: 0.0,
+ this.maxHeight: double.INFINITY
+ });
+
+ BoxConstraints.tight(Size size)
+ : minWidth = size.width,
+ maxWidth = size.width,
+ minHeight = size.height,
+ maxHeight = size.height;
+
+ const BoxConstraints.tightFor({
+ double width,
+ double height
+ }): minWidth = width != null ? width : 0.0,
+ maxWidth = width != null ? width : double.INFINITY,
+ minHeight = height != null ? height : 0.0,
+ maxHeight = height != null ? height : double.INFINITY;
+
+ BoxConstraints.loose(Size size)
+ : minWidth = 0.0,
+ maxWidth = size.width,
+ minHeight = 0.0,
+ maxHeight = size.height;
+
+ const BoxConstraints.expandWidth({
+ this.maxHeight: double.INFINITY
+ }): minWidth = double.INFINITY,
+ maxWidth = double.INFINITY,
+ minHeight = 0.0;
+
+ const BoxConstraints.expandHeight({
+ this.maxWidth: double.INFINITY
+ }): minWidth = 0.0,
+ minHeight = double.INFINITY,
+ maxHeight = double.INFINITY;
+
+ static const BoxConstraints expand = const BoxConstraints(
+ minWidth: double.INFINITY,
+ maxWidth: double.INFINITY,
+ minHeight: double.INFINITY,
+ maxHeight: double.INFINITY
+ );
+
+ BoxConstraints deflate(EdgeDims edges) {
+ assert(edges != null);
+ double horizontal = edges.left + edges.right;
+ double vertical = edges.top + edges.bottom;
+ return new BoxConstraints(
+ minWidth: math.max(0.0, minWidth - horizontal),
+ maxWidth: maxWidth - horizontal,
+ minHeight: math.max(0.0, minHeight - vertical),
+ maxHeight: maxHeight - vertical
+ );
+ }
+
+ BoxConstraints loosen() {
+ return new BoxConstraints(
+ minWidth: 0.0,
+ maxWidth: maxWidth,
+ minHeight: 0.0,
+ maxHeight: maxHeight
+ );
+ }
+
+ BoxConstraints apply(BoxConstraints constraints) {
+ return new BoxConstraints(
+ minWidth: clamp(min: constraints.minWidth, max: constraints.maxWidth, value: minWidth),
+ maxWidth: clamp(min: constraints.minWidth, max: constraints.maxWidth, value: maxWidth),
+ minHeight: clamp(min: constraints.minHeight, max: constraints.maxHeight, value: minHeight),
+ maxHeight: clamp(min: constraints.minHeight, max: constraints.maxHeight, value: maxHeight)
+ );
+ }
+
+ BoxConstraints applyWidth(double width) {
+ return new BoxConstraints(minWidth: math.max(math.min(maxWidth, width), minWidth),
+ maxWidth: math.max(math.min(maxWidth, width), minWidth),
+ minHeight: minHeight,
+ maxHeight: maxHeight);
+ }
+
+ BoxConstraints applyMinWidth(double newMinWidth) {
+ return new BoxConstraints(minWidth: math.max(minWidth, newMinWidth),
+ maxWidth: math.max(maxWidth, newMinWidth),
+ minHeight: minHeight,
+ maxHeight: maxHeight);
+ }
+
+ BoxConstraints applyMaxWidth(double newMaxWidth) {
+ return new BoxConstraints(minWidth: minWidth,
+ maxWidth: math.min(maxWidth, newMaxWidth),
+ minHeight: minHeight,
+ maxHeight: maxHeight);
+ }
+
+ BoxConstraints applyHeight(double height) {
+ return new BoxConstraints(minWidth: minWidth,
+ maxWidth: maxWidth,
+ minHeight: math.max(math.min(maxHeight, height), minHeight),
+ maxHeight: math.max(math.min(maxHeight, height), minHeight));
+ }
+
+ BoxConstraints applyMinHeight(double newMinHeight) {
+ return new BoxConstraints(minWidth: minWidth,
+ maxWidth: maxWidth,
+ minHeight: math.max(minHeight, newMinHeight),
+ maxHeight: math.max(maxHeight, newMinHeight));
+ }
+
+ BoxConstraints applyMaxHeight(double newMaxHeight) {
+ return new BoxConstraints(minWidth: minWidth,
+ maxWidth: maxWidth,
+ minHeight: minHeight,
+ maxHeight: math.min(maxHeight, newMaxHeight));
+ }
+
+ BoxConstraints widthConstraints() => new BoxConstraints(minWidth: minWidth, maxWidth: maxWidth);
+
+ BoxConstraints heightConstraints() => new BoxConstraints(minHeight: minHeight, maxHeight: maxHeight);
+
+ final double minWidth;
+ final double maxWidth;
+ final double minHeight;
+ final double maxHeight;
+
+ double constrainWidth([double width = double.INFINITY]) {
+ return clamp(min: minWidth, max: maxWidth, value: width);
+ }
+
+ double constrainHeight([double height = double.INFINITY]) {
+ return clamp(min: minHeight, max: maxHeight, value: height);
+ }
+
+ Size constrain(Size size) {
+ Size result = new Size(constrainWidth(size.width), constrainHeight(size.height));
+ if (size is _DebugSize)
+ result = new _DebugSize(result, size._owner, size._canBeUsedByParent);
+ return result;
+ }
+ Size get biggest => new Size(constrainWidth(), constrainHeight());
+ Size get smallest => new Size(constrainWidth(0.0), constrainHeight(0.0));
+
+ bool get isInfinite => maxWidth >= double.INFINITY && maxHeight >= double.INFINITY;
+
+ bool get hasTightWidth => minWidth >= maxWidth;
+ bool get hasTightHeight => minHeight >= maxHeight;
+ bool get isTight => hasTightWidth && hasTightHeight;
+
+ bool contains(Size size) {
+ return (minWidth <= size.width) && (size.width <= math.max(minWidth, maxWidth)) &&
+ (minHeight <= size.height) && (size.height <= math.max(minHeight, maxHeight));
+ }
+
+ bool operator ==(other) {
+ if (identical(this, other))
+ return true;
+ return other is BoxConstraints &&
+ minWidth == other.minWidth &&
+ maxWidth == other.maxWidth &&
+ minHeight == other.minHeight &&
+ maxHeight == other.maxHeight;
+ }
+ int get hashCode {
+ int value = 373;
+ value = 37 * value + minWidth.hashCode;
+ value = 37 * value + maxWidth.hashCode;
+ value = 37 * value + minHeight.hashCode;
+ value = 37 * value + maxHeight.hashCode;
+ return value;
+ }
+
+ String toString() => "BoxConstraints($minWidth<=w<$maxWidth, $minHeight<=h<$maxHeight)";
+}
+
+class BoxHitTestEntry extends HitTestEntry {
+ const BoxHitTestEntry(HitTestTarget target, this.localPosition) : super(target);
+ final Point localPosition;
+}
+
+class BoxParentData extends ParentData {
+ Point _position = Point.origin;
+ Point get position => _position;
+ void set position(Point value) {
+ assert(RenderObject.debugDoingLayout);
+ _position = value;
+ }
+ String toString() => 'position=$position';
+}
+
+enum TextBaseline { alphabetic, ideographic }
+
+abstract class RenderBox extends RenderObject {
+
+ void setupParentData(RenderObject child) {
+ if (child.parentData is! BoxParentData)
+ child.parentData = new BoxParentData();
+ }
+
+ // getMinIntrinsicWidth() should return the minimum width that this box could
+ // be without failing to render its contents within itself.
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ return constraints.constrainWidth(0.0);
+ }
+
+ // getMaxIntrinsicWidth() should return the smallest width beyond which
+ // increasing the width never decreases the height.
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ return constraints.constrainWidth(0.0);
+ }
+
+ // getMinIntrinsicHeight() should return the minimum height that this box could
+ // be without failing to render its contents within itself.
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ return constraints.constrainHeight(0.0);
+ }
+
+ // getMaxIntrinsicHeight should return the smallest height beyond which
+ // increasing the height never decreases the width.
+ // If the layout algorithm used is width-in-height-out, i.e. the height
+ // depends on the width and not vice versa, then this will return the same
+ // as getMinIntrinsicHeight().
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ return constraints.constrainHeight(0.0);
+ }
+
+ Map<TextBaseline, double> _cachedBaselines;
+ bool _ancestorUsesBaseline = false;
+ static bool _debugDoingBaseline = false;
+ static bool _debugSetDoingBaseline(bool value) {
+ _debugDoingBaseline = value;
+ return true;
+ }
+ // getDistanceToBaseline() returns the distance from the
+ // y-coordinate of the position of the box to the y-coordinate of
+ // the first given baseline in the box's contents. This is used by
+ // certain layout models to align adjacent boxes on a common
+ // baseline, regardless of padding, font size differences, etc. If
+ // there is no baseline, and the 'onlyReal' argument was not set to
+ // true, then it returns the distance from the y-coordinate of the
+ // position of the box to the y-coordinate of the bottom of the box,
+ // i.e., the height of the box. Only call this after layout has been
+ // performed. You are only allowed to call this from the parent of
+ // this node during that parent's performLayout() or paint().
+ double getDistanceToBaseline(TextBaseline baseline, { bool onlyReal: false }) {
+ assert(!needsLayout);
+ assert(!_debugDoingBaseline);
+ final parent = this.parent; // TODO(ianh): Remove this once the analyzer is cleverer
+ assert(parent is RenderObject);
+ assert(() {
+ if (RenderObject.debugDoingLayout)
+ return (RenderObject.debugActiveLayout == parent) && parent.debugDoingThisLayout;
+ if (RenderObject.debugDoingPaint)
+ return ((RenderObject.debugActivePaint == parent) && parent.debugDoingThisPaint) ||
+ ((RenderObject.debugActivePaint == this) && debugDoingThisPaint);
+ return false;
+ });
+ assert(_debugSetDoingBaseline(true));
+ double result = getDistanceToActualBaseline(baseline);
+ assert(_debugSetDoingBaseline(false));
+ assert(parent == this.parent); // TODO(ianh): Remove this once the analyzer is cleverer
+ if (result == null && !onlyReal)
+ return size.height;
+ return result;
+ }
+ // getDistanceToActualBaseline() must only be called from
+ // getDistanceToBaseline() and computeDistanceToActualBaseline(). Do
+ // not call it directly from outside those two methods. It just
+ // calls computeDistanceToActualBaseline() and caches the result.
+ double getDistanceToActualBaseline(TextBaseline baseline) {
+ assert(_debugDoingBaseline);
+ _ancestorUsesBaseline = true;
+ if (_cachedBaselines == null)
+ _cachedBaselines = new Map<TextBaseline, double>();
+ _cachedBaselines.putIfAbsent(baseline, () => computeDistanceToActualBaseline(baseline));
+ return _cachedBaselines[baseline];
+ }
+ // computeDistanceToActualBaseline() should return the distance from
+ // the y-coordinate of the position of the box to the y-coordinate
+ // of the first given baseline in the box's contents, if any, or
+ // null otherwise. This is the method that you should override in
+ // subclasses. This method (computeDistanceToActualBaseline())
+ // should not be called directly. Use getDistanceToBaseline() if you
+ // need to know the baseline of a child from performLayout(). If you
+ // need the baseline during paint, cache it during performLayout().
+ // Use getDistanceToActualBaseline() if you are implementing
+ // computeDistanceToActualBaseline() and need to defer to a child.
+ double computeDistanceToActualBaseline(TextBaseline baseline) {
+ assert(_debugDoingBaseline);
+ return null;
+ }
+
+ BoxConstraints get constraints => super.constraints;
+ bool debugDoesMeetConstraints() {
+ assert(constraints != null);
+ assert(_size != null);
+ assert(!_size.isInfinite);
+ bool result = constraints.contains(_size);
+ if (!result)
+ print("${this.runtimeType} does not meet its constraints. Constraints: $constraints, size: $_size");
+ return result;
+ }
+
+ void markNeedsLayout() {
+ if (_cachedBaselines != null && _cachedBaselines.isNotEmpty) {
+ // if we have cached data, then someone must have used our data
+ assert(_ancestorUsesBaseline);
+ final parent = this.parent; // TODO(ianh): Remove this once the analyzer is cleverer
+ assert(parent is RenderObject);
+ parent.markNeedsLayout();
+ assert(parent == this.parent); // TODO(ianh): Remove this once the analyzer is cleverer
+ // Now that they're dirty, we can forget that they used the
+ // baseline. If they use it again, then we'll set the bit
+ // again, and if we get dirty again, we'll notify them again.
+ _ancestorUsesBaseline = false;
+ _cachedBaselines.clear();
+ } else {
+ // if we've never cached any data, then nobody can have used it
+ assert(!_ancestorUsesBaseline);
+ }
+ super.markNeedsLayout();
+ }
+ void performResize() {
+ // default behaviour for subclasses that have sizedByParent = true
+ size = constraints.constrain(Size.zero);
+ assert(!size.isInfinite);
+ }
+ void performLayout() {
+ // descendants have to either override performLayout() to set both
+ // width and height and lay out children, or, set sizedByParent to
+ // true so that performResize()'s logic above does its thing.
+ assert(sizedByParent);
+ }
+
+ bool hitTest(HitTestResult result, { Point position }) {
+ hitTestChildren(result, position: position);
+ result.add(new BoxHitTestEntry(this, position));
+ return true;
+ }
+ void hitTestChildren(HitTestResult result, { Point position }) { }
+
+ // TODO(ianh): move size up to before constraints
+ // TODO(ianh): In non-debug builds, this should all just be:
+ // Size size = Size.zero;
+ // In debug builds, however:
+ Size _size = Size.zero;
+ Size get size {
+ if (_size is _DebugSize) {
+ final _DebugSize _size = this._size; // TODO(ianh): Remove this once the analyzer is cleverer
+ assert(_size._owner == this);
+ if (RenderObject.debugActiveLayout != null) {
+ // we are always allowed to access our own size (for print debugging and asserts if nothing else)
+ // other than us, the only object that's allowed to read our size is our parent, if they're said they will
+ // if you hit this assert trying to access a child's size, pass parentUsesSize: true in layout()
+ assert(debugDoingThisResize || debugDoingThisLayout ||
+ (RenderObject.debugActiveLayout == parent && _size._canBeUsedByParent));
+ }
+ assert(_size == this._size); // TODO(ianh): Remove this once the analyzer is cleverer
+ }
+ return _size;
+ }
+ void set size(Size value) {
+ assert((sizedByParent && debugDoingThisResize) ||
+ (!sizedByParent && debugDoingThisLayout));
+ if (value is _DebugSize) {
+ assert(value._canBeUsedByParent);
+ assert(value._owner.parent == this);
+ }
+ _size = inDebugBuild ? new _DebugSize(value, this, debugCanParentUseSize) : value;
+ }
+
+ Rect get paintBounds => Point.origin & size;
+ void debugPaint(PaintingCanvas canvas, Offset offset) {
+ if (debugPaintSizeEnabled)
+ debugPaintSize(canvas, offset);
+ if (debugPaintBaselinesEnabled)
+ debugPaintBaselines(canvas, offset);
+ }
+ void debugPaintSize(PaintingCanvas canvas, Offset offset) {
+ Paint paint = new Paint();
+ paint.setStyle(sky.PaintingStyle.stroke);
+ paint.strokeWidth = 1.0;
+ paint.color = debugPaintSizeColor;
+ canvas.drawRect(offset & size, paint);
+ }
+ void debugPaintBaselines(PaintingCanvas canvas, Offset offset) {
+ Paint paint = new Paint();
+ paint.setStyle(sky.PaintingStyle.stroke);
+ paint.strokeWidth = 0.25;
+ Path path;
+ // ideographic baseline
+ double baselineI = getDistanceToBaseline(TextBaseline.ideographic, onlyReal: true);
+ if (baselineI != null) {
+ paint.color = debugPaintIdeographicBaselineColor;
+ path = new Path();
+ path.moveTo(offset.dx, offset.dy + baselineI);
+ path.lineTo(offset.dx + size.width, offset.dy + baselineI);
+ canvas.drawPath(path, paint);
+ }
+ // alphabetic baseline
+ double baselineA = getDistanceToBaseline(TextBaseline.alphabetic, onlyReal: true);
+ if (baselineA != null) {
+ paint.color = debugPaintAlphabeticBaselineColor;
+ path = new Path();
+ path.moveTo(offset.dx, offset.dy + baselineA);
+ path.lineTo(offset.dx + size.width, offset.dy + baselineA);
+ canvas.drawPath(path, paint);
+ }
+ }
+
+ String debugDescribeSettings(String prefix) => '${super.debugDescribeSettings(prefix)}${prefix}size: ${size}\n';
+}
+
+class RenderProxyBox extends RenderBox with RenderObjectWithChildMixin<RenderBox> {
+
+ // ProxyBox assumes the child will be at 0,0 and will have the same size
+
+ RenderProxyBox([RenderBox child = null]) {
+ this.child = child;
+ }
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMinIntrinsicWidth(constraints);
+ return super.getMinIntrinsicWidth(constraints);
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMaxIntrinsicWidth(constraints);
+ return super.getMaxIntrinsicWidth(constraints);
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMinIntrinsicHeight(constraints);
+ return super.getMinIntrinsicHeight(constraints);
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMaxIntrinsicHeight(constraints);
+ return super.getMaxIntrinsicHeight(constraints);
+ }
+
+ double computeDistanceToActualBaseline(TextBaseline baseline) {
+ if (child != null)
+ return child.getDistanceToActualBaseline(baseline);
+ return super.computeDistanceToActualBaseline(baseline);
+ }
+
+ void performLayout() {
+ if (child != null) {
+ child.layout(constraints, parentUsesSize: true);
+ size = child.size;
+ } else {
+ performResize();
+ }
+ }
+
+ void hitTestChildren(HitTestResult result, { Point position }) {
+ if (child != null)
+ child.hitTest(result, position: position);
+ else
+ super.hitTestChildren(result, position: position);
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ if (child != null)
+ canvas.paintChild(child, offset.toPoint());
+ }
+
+}
+
+class RenderConstrainedBox extends RenderProxyBox {
+ RenderConstrainedBox({
+ RenderBox child,
+ BoxConstraints additionalConstraints
+ }) : super(child), _additionalConstraints = additionalConstraints {
+ assert(additionalConstraints != null);
+ }
+
+ BoxConstraints _additionalConstraints;
+ BoxConstraints get additionalConstraints => _additionalConstraints;
+ void set additionalConstraints (BoxConstraints value) {
+ assert(value != null);
+ if (_additionalConstraints == value)
+ return;
+ _additionalConstraints = value;
+ markNeedsLayout();
+ }
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMinIntrinsicWidth(_additionalConstraints.apply(constraints));
+ return constraints.constrainWidth(0.0);
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMaxIntrinsicWidth(_additionalConstraints.apply(constraints));
+ return constraints.constrainWidth(0.0);
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMinIntrinsicHeight(_additionalConstraints.apply(constraints));
+ return constraints.constrainHeight(0.0);
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMaxIntrinsicHeight(_additionalConstraints.apply(constraints));
+ return constraints.constrainHeight(0.0);
+ }
+
+ void performLayout() {
+ if (child != null) {
+ child.layout(_additionalConstraints.apply(constraints), parentUsesSize: true);
+ size = child.size;
+ } else {
+ size = _additionalConstraints.apply(constraints).constrain(Size.zero);
+ }
+ }
+
+ String debugDescribeSettings(String prefix) => '${super.debugDescribeSettings(prefix)}${prefix}additionalConstraints: ${additionalConstraints}\n';
+}
+
+class RenderAspectRatio extends RenderProxyBox {
+ RenderAspectRatio({
+ RenderBox child,
+ double aspectRatio
+ }) : super(child), _aspectRatio = aspectRatio {
+ assert(_aspectRatio != null);
+ }
+
+ double _aspectRatio;
+ double get aspectRatio => _aspectRatio;
+ void set aspectRatio (double value) {
+ assert(value != null);
+ if (_aspectRatio == value)
+ return;
+ _aspectRatio = value;
+ markNeedsLayout();
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ return _applyAspectRatio(constraints).height;
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ return _applyAspectRatio(constraints).height;
+ }
+
+ Size _applyAspectRatio(BoxConstraints constraints) {
+ double width = constraints.constrainWidth();
+ double height = constraints.constrainHeight(width / _aspectRatio);
+ return new Size(width, height);
+ }
+
+ bool get sizedByParent => true;
+
+ void performResize() {
+ size = _applyAspectRatio(constraints);
+ }
+
+ void performLayout() {
+ if (child != null)
+ child.layout(new BoxConstraints.tight(size));
+ }
+
+ String debugDescribeSettings(String prefix) => '${super.debugDescribeSettings(prefix)}${prefix}aspectRatio: ${aspectRatio}\n';
+}
+
+class RenderShrinkWrapWidth extends RenderProxyBox {
+
+ // This class will attempt to size its child to the child's maximum
+ // intrinsic width, snapped to a multiple of the stepWidth, if one
+ // is provided, and given the provided constraints; and will then
+ // adopt the child's resulting dimensions.
+
+ // Note: laying out this class is relatively expensive. Avoid using
+ // it where possible.
+
+ RenderShrinkWrapWidth({
+ double stepWidth,
+ double stepHeight,
+ RenderBox child
+ }) : _stepWidth = stepWidth, _stepHeight = stepHeight, super(child);
+
+ double _stepWidth;
+ double get stepWidth => _stepWidth;
+ void set stepWidth(double value) {
+ if (value == _stepWidth)
+ return;
+ _stepWidth = value;
+ markNeedsLayout();
+ }
+
+ double _stepHeight;
+ double get stepHeight => _stepHeight;
+ void set stepHeight(double value) {
+ if (value == _stepHeight)
+ return;
+ _stepHeight = value;
+ markNeedsLayout();
+ }
+
+ static double applyStep(double input, double step) {
+ if (step == null)
+ return input;
+ return (input / step).ceil() * step;
+ }
+
+ BoxConstraints _getInnerConstraints(BoxConstraints constraints) {
+ if (constraints.hasTightWidth)
+ return constraints;
+ double width = child.getMaxIntrinsicWidth(constraints);
+ assert(width == constraints.constrainWidth(width));
+ return constraints.applyWidth(applyStep(width, _stepWidth));
+ }
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ return getMaxIntrinsicWidth(constraints);
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ if (child == null)
+ return constraints.constrainWidth(0.0);
+ double childResult = child.getMaxIntrinsicWidth(constraints);
+ return constraints.constrainWidth(applyStep(childResult, _stepWidth));
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ if (child == null)
+ return constraints.constrainWidth(0.0);
+ double childResult = child.getMinIntrinsicHeight(_getInnerConstraints(constraints));
+ return constraints.constrainHeight(applyStep(childResult, _stepHeight));
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ if (child == null)
+ return constraints.constrainWidth(0.0);
+ double childResult = child.getMaxIntrinsicHeight(_getInnerConstraints(constraints));
+ return constraints.constrainHeight(applyStep(childResult, _stepHeight));
+ }
+
+ void performLayout() {
+ if (child != null) {
+ BoxConstraints childConstraints = _getInnerConstraints(constraints);
+ if (_stepHeight != null)
+ childConstraints.applyHeight(getMaxIntrinsicHeight(childConstraints));
+ child.layout(childConstraints, parentUsesSize: true);
+ size = child.size;
+ } else {
+ performResize();
+ }
+ }
+
+ String debugDescribeSettings(String prefix) => '${super.debugDescribeSettings(prefix)}${prefix}stepWidth: ${stepWidth}\n${prefix}stepHeight: ${stepHeight}\n';
+
+}
+
+class RenderOpacity extends RenderProxyBox {
+ RenderOpacity({ RenderBox child, double opacity })
+ : this._opacity = opacity, super(child) {
+ assert(opacity >= 0.0 && opacity <= 1.0);
+ }
+
+ double _opacity;
+ double get opacity => _opacity;
+ void set opacity (double value) {
+ assert(value != null);
+ assert(value >= 0.0 && value <= 1.0);
+ if (_opacity == value)
+ return;
+ _opacity = value;
+ _cachedPaint = null;
+ markNeedsPaint();
+ }
+
+ int get _alpha => (_opacity * 255).round();
+
+ Paint _cachedPaint;
+ Paint get _paint {
+ if (_cachedPaint == null) {
+ _cachedPaint = new Paint()
+ ..color = new Color.fromARGB(_alpha, 0, 0, 0)
+ ..setTransferMode(sky.TransferMode.srcOver);
+ }
+ return _cachedPaint;
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ if (child != null) {
+ int a = _alpha;
+
+ if (a == 0)
+ return;
+
+ if (a == 255) {
+ canvas.paintChild(child, offset.toPoint());
+ return;
+ }
+
+ canvas.saveLayer(null, _paint);
+ canvas.paintChild(child, offset.toPoint());
+ canvas.restore();
+ }
+ }
+}
+
+class RenderColorFilter extends RenderProxyBox {
+ RenderColorFilter({ RenderBox child, Color color, sky.TransferMode transferMode })
+ : _color = color, _transferMode = transferMode, super(child) {
+ }
+
+ Color _color;
+ Color get color => _color;
+ void set color (Color value) {
+ assert(value != null);
+ if (_color == value)
+ return;
+ _color = value;
+ _cachedPaint = null;
+ markNeedsPaint();
+ }
+
+ sky.TransferMode _transferMode;
+ sky.TransferMode get transferMode => _transferMode;
+ void set transferMode (sky.TransferMode value) {
+ assert(value != null);
+ if (_transferMode == value)
+ return;
+ _transferMode = value;
+ _cachedPaint = null;
+ markNeedsPaint();
+ }
+
+ Paint _cachedPaint;
+ Paint get _paint {
+ if (_cachedPaint == null) {
+ _cachedPaint = new Paint()
+ ..setColorFilter(new sky.ColorFilter.mode(_color, _transferMode));
+ }
+ return _cachedPaint;
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ if (child != null) {
+ canvas.saveLayer(offset & size, _paint);
+ canvas.paintChild(child, offset.toPoint());
+ canvas.restore();
+ }
+ }
+}
+
+class RenderClipRect extends RenderProxyBox {
+ RenderClipRect({ RenderBox child }) : super(child);
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ if (child != null) {
+ canvas.save();
+ canvas.clipRect(offset & size);
+ canvas.paintChild(child, offset.toPoint());
+ canvas.restore();
+ }
+ }
+}
+
+class RenderClipRRect extends RenderProxyBox {
+ RenderClipRRect({ RenderBox child, double xRadius, double yRadius })
+ : _xRadius = xRadius, _yRadius = yRadius, super(child) {
+ assert(_xRadius != null);
+ assert(_yRadius != null);
+ }
+
+ double _xRadius;
+ double get xRadius => _xRadius;
+ void set xRadius (double value) {
+ assert(value != null);
+ if (_xRadius == value)
+ return;
+ _xRadius = value;
+ markNeedsPaint();
+ }
+
+ double _yRadius;
+ double get yRadius => _yRadius;
+ void set yRadius (double value) {
+ assert(value != null);
+ if (_yRadius == value)
+ return;
+ _yRadius = value;
+ markNeedsPaint();
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ if (child != null) {
+ Rect rect = offset & size;
+ canvas.saveLayer(rect, new Paint());
+ sky.RRect rrect = new sky.RRect()..setRectXY(rect, xRadius, yRadius);
+ canvas.clipRRect(rrect);
+ canvas.paintChild(child, offset.toPoint());
+ canvas.restore();
+ }
+ }
+}
+
+class RenderClipOval extends RenderProxyBox {
+ RenderClipOval({ RenderBox child }) : super(child);
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ if (child != null) {
+ Rect rect = offset & size;
+ canvas.saveLayer(rect, new Paint());
+ Path path = new Path();
+ path.addOval(rect);
+ canvas.clipPath(path);
+ canvas.paintChild(child, offset.toPoint());
+ canvas.restore();
+ }
+ }
+}
+
+abstract class RenderShiftedBox extends RenderBox with RenderObjectWithChildMixin<RenderBox> {
+
+ // Abstract class for one-child-layout render boxes
+
+ RenderShiftedBox(RenderBox child) {
+ this.child = child;
+ }
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMinIntrinsicWidth(constraints);
+ return super.getMinIntrinsicWidth(constraints);
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMaxIntrinsicWidth(constraints);
+ return super.getMaxIntrinsicWidth(constraints);
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMinIntrinsicHeight(constraints);
+ return super.getMinIntrinsicHeight(constraints);
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMaxIntrinsicHeight(constraints);
+ return super.getMaxIntrinsicHeight(constraints);
+ }
+
+ double computeDistanceToActualBaseline(TextBaseline baseline) {
+ double result;
+ if (child != null) {
+ assert(!needsLayout);
+ result = child.getDistanceToActualBaseline(baseline);
+ assert(child.parentData is BoxParentData);
+ if (result != null)
+ result += child.parentData.position.y;
+ } else {
+ result = super.computeDistanceToActualBaseline(baseline);
+ }
+ return result;
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ if (child != null)
+ canvas.paintChild(child, child.parentData.position + offset);
+ }
+
+ void hitTestChildren(HitTestResult result, { Point position }) {
+ if (child != null) {
+ assert(child.parentData is BoxParentData);
+ Rect childBounds = child.parentData.position & child.size;
+ if (childBounds.contains(position)) {
+ child.hitTest(result, position: new Point(position.x - child.parentData.position.x,
+ position.y - child.parentData.position.y));
+ }
+ }
+ }
+
+}
+
+class RenderPadding extends RenderShiftedBox {
+
+ RenderPadding({ EdgeDims padding, RenderBox child }) : super(child) {
+ assert(padding != null);
+ this.padding = padding;
+ }
+
+ EdgeDims _padding;
+ EdgeDims get padding => _padding;
+ void set padding (EdgeDims value) {
+ assert(value != null);
+ if (_padding == value)
+ return;
+ _padding = value;
+ markNeedsLayout();
+ }
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ double totalPadding = padding.left + padding.right;
+ if (child != null)
+ return child.getMinIntrinsicWidth(constraints.deflate(padding)) + totalPadding;
+ return constraints.constrainWidth(totalPadding);
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ double totalPadding = padding.left + padding.right;
+ if (child != null)
+ return child.getMaxIntrinsicWidth(constraints.deflate(padding)) + totalPadding;
+ return constraints.constrainWidth(totalPadding);
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ double totalPadding = padding.top + padding.bottom;
+ if (child != null)
+ return child.getMinIntrinsicHeight(constraints.deflate(padding)) + totalPadding;
+ return constraints.constrainHeight(totalPadding);
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ double totalPadding = padding.top + padding.bottom;
+ if (child != null)
+ return child.getMaxIntrinsicHeight(constraints.deflate(padding)) + totalPadding;
+ return constraints.constrainHeight(totalPadding);
+ }
+
+ void performLayout() {
+ assert(padding != null);
+ if (child == null) {
+ size = constraints.constrain(new Size(
+ padding.left + padding.right,
+ padding.top + padding.bottom
+ ));
+ return;
+ }
+ BoxConstraints innerConstraints = constraints.deflate(padding);
+ child.layout(innerConstraints, parentUsesSize: true);
+ assert(child.parentData is BoxParentData);
+ child.parentData.position = new Point(padding.left, padding.top);
+ size = constraints.constrain(new Size(
+ padding.left + child.size.width + padding.right,
+ padding.top + child.size.height + padding.bottom
+ ));
+ }
+
+ String debugDescribeSettings(String prefix) => '${super.debugDescribeSettings(prefix)}${prefix}padding: ${padding}\n';
+}
+
+class RenderPositionedBox extends RenderShiftedBox {
+
+ // This box aligns a child box within itself. It's only useful for
+ // children that don't always size to fit their parent. For example,
+ // to align a box at the bottom right, you would pass this box a
+ // tight constraint that is bigger than the child's natural size,
+ // with horizontal and vertical set to 1.0.
+
+ RenderPositionedBox({
+ RenderBox child,
+ double horizontal: 0.5,
+ double vertical: 0.5
+ }) : _horizontal = horizontal,
+ _vertical = vertical,
+ super(child) {
+ assert(horizontal != null);
+ assert(vertical != null);
+ }
+
+ double _horizontal;
+ double get horizontal => _horizontal;
+ void set horizontal (double value) {
+ assert(value != null);
+ if (_horizontal == value)
+ return;
+ _horizontal = value;
+ markNeedsLayout();
+ }
+
+ double _vertical;
+ double get vertical => _vertical;
+ void set vertical (double value) {
+ assert(value != null);
+ if (_vertical == value)
+ return;
+ _vertical = value;
+ markNeedsLayout();
+ }
+
+ void performLayout() {
+ if (child != null) {
+ child.layout(constraints.loosen(), parentUsesSize: true);
+ size = constraints.constrain(child.size);
+ assert(child.parentData is BoxParentData);
+ Offset delta = size - child.size;
+ child.parentData.position = (delta.scale(horizontal, vertical)).toPoint();
+ } else {
+ performResize();
+ }
+ }
+
+ String debugDescribeSettings(String prefix) => '${super.debugDescribeSettings(prefix)}${prefix}horizontal: ${horizontal}\n${prefix}vertical: ${vertical}\n';
+}
+
+class RenderBaseline extends RenderShiftedBox {
+
+ RenderBaseline({
+ RenderBox child,
+ double baseline,
+ TextBaseline baselineType
+ }) : _baseline = baseline,
+ _baselineType = baselineType,
+ super(child) {
+ assert(baseline != null);
+ assert(baselineType != null);
+ }
+
+ double _baseline;
+ double get baseline => _baseline;
+ void set baseline (double value) {
+ assert(value != null);
+ if (_baseline == value)
+ return;
+ _baseline = value;
+ markNeedsLayout();
+ }
+
+ TextBaseline _baselineType;
+ TextBaseline get baselineType => _baselineType;
+ void set baselineType (TextBaseline value) {
+ assert(value != null);
+ if (_baselineType == value)
+ return;
+ _baselineType = value;
+ markNeedsLayout();
+ }
+
+ void performLayout() {
+ if (child != null) {
+ child.layout(constraints.loosen(), parentUsesSize: true);
+ size = constraints.constrain(child.size);
+ assert(child.parentData is BoxParentData);
+ double delta = baseline - child.getDistanceToBaseline(baselineType);
+ child.parentData.position = new Point(0.0, delta);
+ } else {
+ performResize();
+ }
+ }
+
+ String debugDescribeSettings(String prefix) => '${super.debugDescribeSettings(prefix)}${prefix}baseline: ${baseline}\nbaselineType: ${baselineType}';
+}
+
+enum ViewportScrollDirection { horizontal, vertical, both }
+
+class RenderViewport extends RenderBox with RenderObjectWithChildMixin<RenderBox> {
+
+ RenderViewport({
+ RenderBox child,
+ Offset scrollOffset,
+ ViewportScrollDirection direction: ViewportScrollDirection.vertical
+ }) : _scrollOffset = scrollOffset,
+ _scrollDirection = direction {
+ assert(_offsetIsSane(scrollOffset, direction));
+ this.child = child;
+ }
+
+ bool _offsetIsSane(Offset offset, ViewportScrollDirection direction) {
+ switch (direction) {
+ case ViewportScrollDirection.both:
+ return true;
+ case ViewportScrollDirection.horizontal:
+ return offset.dy == 0.0;
+ case ViewportScrollDirection.vertical:
+ return offset.dx == 0.0;
+ }
+ }
+
+ Offset _scrollOffset;
+ Offset get scrollOffset => _scrollOffset;
+ void set scrollOffset(Offset value) {
+ if (value == _scrollOffset)
+ return;
+ assert(_offsetIsSane(value, scrollDirection));
+ _scrollOffset = value;
+ markNeedsPaint();
+ }
+
+ ViewportScrollDirection _scrollDirection;
+ ViewportScrollDirection get scrollDirection => _scrollDirection;
+ void set scrollDirection(ViewportScrollDirection value) {
+ if (value == _scrollDirection)
+ return;
+ assert(_offsetIsSane(scrollOffset, value));
+ _scrollDirection = value;
+ markNeedsLayout();
+ }
+
+ BoxConstraints _getInnerConstraints(BoxConstraints constraints) {
+ BoxConstraints innerConstraints;
+ switch (scrollDirection) {
+ case ViewportScrollDirection.both:
+ innerConstraints = new BoxConstraints();
+ break;
+ case ViewportScrollDirection.horizontal:
+ innerConstraints = constraints.heightConstraints();
+ break;
+ case ViewportScrollDirection.vertical:
+ innerConstraints = constraints.widthConstraints();
+ break;
+ }
+ return innerConstraints;
+ }
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMinIntrinsicWidth(_getInnerConstraints(constraints));
+ return super.getMinIntrinsicWidth(constraints);
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMaxIntrinsicWidth(_getInnerConstraints(constraints));
+ return super.getMaxIntrinsicWidth(constraints);
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMinIntrinsicHeight(_getInnerConstraints(constraints));
+ return super.getMinIntrinsicHeight(constraints);
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ if (child != null)
+ return child.getMaxIntrinsicHeight(_getInnerConstraints(constraints));
+ return super.getMaxIntrinsicHeight(constraints);
+ }
+
+ // We don't override computeDistanceToActualBaseline(), because we
+ // want the default behaviour (returning null). Otherwise, as you
+ // scroll the RenderViewport, it would shift in its parent if the
+ // parent was baseline-aligned, which makes no sense.
+
+ void performLayout() {
+ if (child != null) {
+ child.layout(_getInnerConstraints(constraints), parentUsesSize: true);
+ size = constraints.constrain(child.size);
+ assert(child.parentData is BoxParentData);
+ child.parentData.position = Point.origin;
+ } else {
+ performResize();
+ }
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ if (child != null) {
+ bool _needsClip = offset < Offset.zero ||
+ !(offset & size).contains(((offset - scrollOffset) & child.size).bottomRight);
+ if (_needsClip) {
+ canvas.save();
+ canvas.clipRect(offset & size);
+ }
+ canvas.paintChild(child, (offset - scrollOffset).toPoint());
+ if (_needsClip)
+ canvas.restore();
+ }
+ }
+
+ void hitTestChildren(HitTestResult result, { Point position }) {
+ if (child != null) {
+ assert(child.parentData is BoxParentData);
+ Rect childBounds = child.parentData.position & child.size;
+ if (childBounds.contains(position + -scrollOffset))
+ child.hitTest(result, position: position + scrollOffset);
+ }
+ }
+
+}
+
+class RenderImage extends RenderBox {
+
+ RenderImage(sky.Image image, Size requestedSize, { sky.ColorFilter colorFilter })
+ : _image = image,
+ _requestedSize = requestedSize,
+ _colorFilter = colorFilter;
+
+ sky.Image _image;
+ sky.Image get image => _image;
+ void set image (sky.Image value) {
+ if (value == _image)
+ return;
+ _image = value;
+ markNeedsPaint();
+ if (_requestedSize.width == null || _requestedSize.height == null)
+ markNeedsLayout();
+ }
+
+ Size _requestedSize;
+ Size get requestedSize => _requestedSize;
+ void set requestedSize (Size value) {
+ if (value == null)
+ value = const Size(null, null);
+ if (value == _requestedSize)
+ return;
+ _requestedSize = value;
+ markNeedsLayout();
+ }
+
+ sky.ColorFilter _colorFilter;
+ sky.ColorFilter get colorFilter => _colorFilter;
+ void set colorFilter (sky.ColorFilter value) {
+ if (value == _colorFilter)
+ return;
+ _colorFilter = value;
+ _cachedPaint = null;
+ markNeedsPaint();
+ }
+
+ Paint _cachedPaint;
+ Paint get _paint {
+ if (_cachedPaint == null) {
+ _cachedPaint = new Paint();
+ if (colorFilter != null)
+ _cachedPaint.setColorFilter(colorFilter);
+ }
+ return _cachedPaint;
+ }
+
+ Size _sizeForConstraints(BoxConstraints innerConstraints) {
+ // If there's no image, we can't size ourselves automatically
+ if (_image == null) {
+ double width = requestedSize.width == null ? 0.0 : requestedSize.width;
+ double height = requestedSize.height == null ? 0.0 : requestedSize.height;
+ return constraints.constrain(new Size(width, height));
+ }
+
+ if (!innerConstraints.isTight) {
+ // If neither height nor width are specified, use inherent image
+ // dimensions. If only one dimension is specified, adjust the
+ // other dimension to maintain the aspect ratio. In both cases,
+ // constrain dimensions first, otherwise we end up losing the
+ // ratio after constraining.
+ if (requestedSize.width == null) {
+ if (requestedSize.height == null) {
+ // autosize
+ double width = constraints.constrainWidth(_image.width.toDouble());
+ double maxHeight = constraints.constrainHeight(_image.height.toDouble());
+ double ratio = _image.height / _image.width;
+ double height = width * ratio;
+ if (height > maxHeight) {
+ height = maxHeight;
+ width = maxHeight / ratio;
+ }
+ return constraints.constrain(new Size(width, height));
+ }
+ // determine width from height
+ double width = requestedSize.height * _image.width / _image.height;
+ return constraints.constrain(new Size(width, requestedSize.height));
+ }
+ if (requestedSize.height == null) {
+ // determine height from width
+ double height = requestedSize.width * _image.height / _image.width;
+ return constraints.constrain(new Size(requestedSize.width, height));
+ }
+ }
+ return constraints.constrain(requestedSize);
+ }
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ if (requestedSize.width == null && requestedSize.height == null)
+ return constraints.constrainWidth(0.0);
+ return _sizeForConstraints(constraints).width;
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ return _sizeForConstraints(constraints).width;
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ if (requestedSize.width == null && requestedSize.height == null)
+ return constraints.constrainHeight(0.0);
+ return _sizeForConstraints(constraints).height;
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ return _sizeForConstraints(constraints).height;
+ }
+
+ void performLayout() {
+ size = _sizeForConstraints(constraints);
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ if (_image == null)
+ return;
+ bool needsScale = size.width != _image.width || size.height != _image.height;
+ if (needsScale) {
+ double widthScale = size.width / _image.width;
+ double heightScale = size.height / _image.height;
+ canvas.save();
+ canvas.translate(offset.dx, offset.dy);
+ canvas.scale(widthScale, heightScale);
+ offset = Offset.zero;
+ }
+ canvas.drawImage(_image, offset.toPoint(), _paint);
+ if (needsScale)
+ canvas.restore();
+ }
+
+ String debugDescribeSettings(String prefix) => '${super.debugDescribeSettings(prefix)}${prefix}dimensions: ${requestedSize}\n';
+}
+
+class RenderDecoratedBox extends RenderProxyBox {
+
+ RenderDecoratedBox({
+ BoxDecoration decoration,
+ RenderBox child
+ }) : _painter = new BoxPainter(decoration), super(child);
+
+ BoxPainter _painter;
+ BoxDecoration get decoration => _painter.decoration;
+ void set decoration (BoxDecoration value) {
+ assert(value != null);
+ if (_painter.decoration.backgroundImage != null)
+ _painter.decoration.backgroundImage.removeChangeListener(markNeedsPaint);
+ if (value.backgroundImage != null)
+ value.backgroundImage.addChangeListener(markNeedsPaint);
+ if (value == _painter.decoration)
+ return;
+ _painter.decoration = value;
+ markNeedsPaint();
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ assert(size.width != null);
+ assert(size.height != null);
+ _painter.paint(canvas, offset & size);
+ super.paint(canvas, offset);
+ }
+
+ String debugDescribeSettings(String prefix) => '${super.debugDescribeSettings(prefix)}${prefix}decoration:\n${_painter.decoration.toString(prefix + " ")}\n';
+}
+
+class RenderTransform extends RenderProxyBox {
+ RenderTransform({
+ Matrix4 transform,
+ RenderBox child
+ }) : super(child) {
+ assert(transform != null);
+ this.transform = transform;
+ }
+
+ Matrix4 _transform;
+
+ void set transform(Matrix4 value) {
+ assert(value != null);
+ if (_transform == value)
+ return;
+ _transform = new Matrix4.copy(value);
+ markNeedsPaint();
+ }
+
+ void setIdentity() {
+ _transform.setIdentity();
+ markNeedsPaint();
+ }
+
+ void rotateX(double radians) {
+ _transform.rotateX(radians);
+ markNeedsPaint();
+ }
+
+ void rotateY(double radians) {
+ _transform.rotateY(radians);
+ markNeedsPaint();
+ }
+
+ void rotateZ(double radians) {
+ _transform.rotateZ(radians);
+ markNeedsPaint();
+ }
+
+ void translate(x, [double y = 0.0, double z = 0.0]) {
+ _transform.translate(x, y, z);
+ markNeedsPaint();
+ }
+
+ void scale(x, [double y, double z]) {
+ _transform.scale(x, y, z);
+ markNeedsPaint();
+ }
+
+ void hitTestChildren(HitTestResult result, { Point position }) {
+ Matrix4 inverse = new Matrix4.zero();
+ /* double det = */ inverse.copyInverse(_transform);
+ // TODO(abarth): Check the determinant for degeneracy.
+
+ Vector3 position3 = new Vector3(position.x, position.y, 0.0);
+ Vector3 transformed3 = inverse.transform3(position3);
+ Point transformed = new Point(transformed3.x, transformed3.y);
+ super.hitTestChildren(result, position: transformed);
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ canvas.save();
+ canvas.translate(offset.dx, offset.dy);
+ canvas.concat(_transform.storage);
+ super.paint(canvas, Offset.zero);
+ canvas.restore();
+ }
+
+ String debugDescribeSettings(String prefix) {
+ List<String> result = _transform.toString().split('\n').map((s) => '$prefix $s\n').toList();
+ result.removeLast();
+ return '${super.debugDescribeSettings(prefix)}${prefix}transform matrix:\n${result.join()}';
+ }
+}
+
+typedef void SizeChangedCallback(Size newSize);
+
+class RenderSizeObserver extends RenderProxyBox {
+ RenderSizeObserver({
+ this.callback,
+ RenderBox child
+ }) : super(child) {
+ assert(callback != null);
+ }
+
+ SizeChangedCallback callback;
+
+ void performLayout() {
+ Size oldSize = size;
+
+ super.performLayout();
+
+ if (oldSize != size)
+ callback(size);
+ }
+}
+
+typedef void CustomPaintCallback(PaintingCanvas canvas, Size size);
+
+class RenderCustomPaint extends RenderProxyBox {
+
+ RenderCustomPaint({
+ CustomPaintCallback callback,
+ RenderBox child
+ }) : super(child) {
+ assert(callback != null);
+ _callback = callback;
+ }
+
+ CustomPaintCallback _callback;
+ void set callback (CustomPaintCallback value) {
+ assert(value != null || !attached);
+ if (_callback == value)
+ return;
+ _callback = value;
+ markNeedsPaint();
+ }
+
+ void attach() {
+ assert(_callback != null);
+ super.attach();
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ assert(_callback != null);
+ canvas.translate(offset.dx, offset.dy);
+ _callback(canvas, size);
+ super.paint(canvas, Offset.zero);
+ canvas.translate(-offset.dx, -offset.dy);
+ }
+}
+
+// RENDER VIEW LAYOUT MANAGER
+
+class ViewConstraints {
+ const ViewConstraints({
+ this.size: Size.zero,
+ this.orientation
+ });
+ final Size size;
+ final int orientation;
+}
+
+class RenderView extends RenderObject with RenderObjectWithChildMixin<RenderBox> {
+ bool get createNewDisplayList => true;
+
+ RenderView({
+ RenderBox child,
+ this.timeForRotation: const Duration(microseconds: 83333)
+ }) {
+ this.child = child;
+ }
+
+ Size _size = Size.zero;
+ Size get size => _size;
+
+ int _orientation; // 0..3
+ int get orientation => _orientation;
+ Duration timeForRotation;
+
+ ViewConstraints _rootConstraints;
+ ViewConstraints get rootConstraints => _rootConstraints;
+ void set rootConstraints(ViewConstraints value) {
+ if (_rootConstraints == value)
+ return;
+ _rootConstraints = value;
+ markNeedsLayout();
+ }
+
+ // We never call layout() on this class, so this should never get
+ // checked. (This class is laid out using scheduleInitialLayout().)
+ bool debugDoesMeetConstraints() { assert(false); return false; }
+
+ void performResize() {
+ assert(false);
+ }
+
+ void performLayout() {
+ if (_rootConstraints.orientation != _orientation) {
+ if (_orientation != null && child != null)
+ child.rotate(oldAngle: _orientation, newAngle: _rootConstraints.orientation, time: timeForRotation);
+ _orientation = _rootConstraints.orientation;
+ }
+ _size = _rootConstraints.size;
+ assert(!_size.isInfinite);
+
+ if (child != null)
+ child.layout(new BoxConstraints.tight(_size));
+ }
+
+ void rotate({ int oldAngle, int newAngle, Duration time }) {
+ assert(false); // nobody tells the screen to rotate, the whole rotate() dance is started from our performResize()
+ }
+
+ bool hitTest(HitTestResult result, { Point position }) {
+ if (child != null) {
+ Rect childBounds = Point.origin & child.size;
+ if (childBounds.contains(position))
+ child.hitTest(result, position: position);
+ }
+ result.add(new HitTestEntry(this));
+ return true;
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ if (child != null)
+ canvas.paintChild(child, offset.toPoint());
+ }
+
+ void paintFrame() {
+ sky.tracing.begin('RenderView.paintFrame');
+ try {
+ sky.PictureRecorder recorder = new sky.PictureRecorder();
+ PaintingCanvas canvas = new PaintingCanvas(recorder, paintBounds);
+ canvas.drawPaintingNode(paintingNode, Point.origin);
+ sky.view.picture = recorder.endRecording();
+ } finally {
+ sky.tracing.end('RenderView.paintFrame');
+ }
+ }
+
+ Rect get paintBounds => Point.origin & size;
+}
+
+// HELPER METHODS FOR RENDERBOX CONTAINERS
+abstract class RenderBoxContainerDefaultsMixin<ChildType extends RenderBox, ParentDataType extends ContainerParentDataMixin<ChildType>> implements ContainerRenderObjectMixin<ChildType, ParentDataType> {
+
+ // This class, by convention, doesn't override any members of the superclass.
+ // It only provides helper functions that subclasses can call.
+
+ double defaultComputeDistanceToFirstActualBaseline(TextBaseline baseline) {
+ assert(!needsLayout);
+ RenderBox child = firstChild;
+ while (child != null) {
+ assert(child.parentData is ParentDataType);
+ double result = child.getDistanceToActualBaseline(baseline);
+ if (result != null)
+ return result + child.parentData.position.y;
+ child = child.parentData.nextSibling;
+ }
+ return null;
+ }
+
+ double defaultComputeDistanceToHighestActualBaseline(TextBaseline baseline) {
+ assert(!needsLayout);
+ double result;
+ RenderBox child = firstChild;
+ while (child != null) {
+ assert(child.parentData is ParentDataType);
+ double candidate = child.getDistanceToActualBaseline(baseline);
+ if (candidate != null) {
+ candidate += child.parentData.position.x;
+ if (result != null)
+ result = math.min(result, candidate);
+ else
+ result = candidate;
+ }
+ child = child.parentData.nextSibling;
+ }
+ return result;
+ }
+
+ void defaultHitTestChildren(HitTestResult result, { Point position }) {
+ // the x, y parameters have the top left of the node's box as the origin
+ ChildType child = lastChild;
+ while (child != null) {
+ assert(child.parentData is ParentDataType);
+ Rect childBounds = child.parentData.position & child.size;
+ if (childBounds.contains(position)) {
+ if (child.hitTest(result, position: new Point(position.x - child.parentData.position.x,
+ position.y - child.parentData.position.y)))
+ break;
+ }
+ child = child.parentData.previousSibling;
+ }
+ }
+
+ void defaultPaint(PaintingCanvas canvas, Offset offset) {
+ RenderBox child = firstChild;
+ while (child != null) {
+ assert(child.parentData is ParentDataType);
+ canvas.paintChild(child, child.parentData.position + offset);
+ child = child.parentData.nextSibling;
+ }
+ }
+}
diff --git a/packages/flutter/lib/rendering/flex.dart b/packages/flutter/lib/rendering/flex.dart
new file mode 100644
index 0000000..6e47540
--- /dev/null
+++ b/packages/flutter/lib/rendering/flex.dart
@@ -0,0 +1,421 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+
+class FlexBoxParentData extends BoxParentData with ContainerParentDataMixin<RenderBox> {
+ int flex;
+
+ void merge(FlexBoxParentData other) {
+ if (other.flex != null)
+ flex = other.flex;
+ super.merge(other);
+ }
+
+ String toString() => '${super.toString()}; flex=$flex';
+}
+
+enum FlexDirection { horizontal, vertical }
+
+enum FlexJustifyContent {
+ start,
+ end,
+ center,
+ spaceBetween,
+ spaceAround,
+}
+
+enum FlexAlignItems {
+ start,
+ end,
+ center,
+ stretch,
+}
+
+typedef double _ChildSizingFunction(RenderBox child, BoxConstraints constraints);
+
+class RenderFlex extends RenderBox with ContainerRenderObjectMixin<RenderBox, FlexBoxParentData>,
+ RenderBoxContainerDefaultsMixin<RenderBox, FlexBoxParentData> {
+ // lays out RenderBox children using flexible layout
+
+ RenderFlex({
+ List<RenderBox> children,
+ FlexDirection direction: FlexDirection.horizontal,
+ FlexJustifyContent justifyContent: FlexJustifyContent.start,
+ FlexAlignItems alignItems: FlexAlignItems.center
+ }) : _direction = direction,
+ _justifyContent = justifyContent,
+ _alignItems = alignItems {
+ addAll(children);
+ }
+
+ FlexDirection _direction;
+ FlexDirection get direction => _direction;
+ void set direction (FlexDirection value) {
+ if (_direction != value) {
+ _direction = value;
+ markNeedsLayout();
+ }
+ }
+
+ FlexJustifyContent _justifyContent;
+ FlexJustifyContent get justifyContent => _justifyContent;
+ void set justifyContent (FlexJustifyContent value) {
+ if (_justifyContent != value) {
+ _justifyContent = value;
+ markNeedsLayout();
+ }
+ }
+
+ FlexAlignItems _alignItems;
+ FlexAlignItems get alignItems => _alignItems;
+ void set alignItems (FlexAlignItems value) {
+ if (_alignItems != value) {
+ _alignItems = value;
+ markNeedsLayout();
+ }
+ }
+
+ void setupParentData(RenderBox child) {
+ if (child.parentData is! FlexBoxParentData)
+ child.parentData = new FlexBoxParentData();
+ }
+
+ double _getIntrinsicSize({ BoxConstraints constraints,
+ FlexDirection sizingDirection,
+ _ChildSizingFunction childSize }) {
+ // http://www.w3.org/TR/2015/WD-css-flexbox-1-20150514/#intrinsic-sizes
+ if (_direction == sizingDirection) {
+ // INTRINSIC MAIN SIZE
+ // Intrinsic main size is the smallest size the flex container can take
+ // while maintaining the min/max-content contributions of its flex items.
+ BoxConstraints childConstraints;
+ switch(_direction) {
+ case FlexDirection.horizontal:
+ childConstraints = new BoxConstraints(maxHeight: constraints.maxHeight);
+ break;
+ case FlexDirection.vertical:
+ childConstraints = new BoxConstraints(maxWidth: constraints.maxWidth);
+ break;
+ }
+
+ double totalFlex = 0.0;
+ double inflexibleSpace = 0.0;
+ double maxFlexFractionSoFar = 0.0;
+ RenderBox child = firstChild;
+ while (child != null) {
+ int flex = _getFlex(child);
+ totalFlex += flex;
+ if (flex > 0) {
+ double flexFraction = childSize(child, childConstraints) / _getFlex(child);
+ maxFlexFractionSoFar = math.max(maxFlexFractionSoFar, flexFraction);
+ } else {
+ inflexibleSpace += childSize(child, childConstraints);
+ }
+ assert(child.parentData is FlexBoxParentData);
+ child = child.parentData.nextSibling;
+ }
+ double mainSize = maxFlexFractionSoFar * totalFlex + inflexibleSpace;
+
+ // Ensure that we don't violate the given constraints with our result
+ switch(_direction) {
+ case FlexDirection.horizontal:
+ return constraints.constrainWidth(mainSize);
+ case FlexDirection.vertical:
+ return constraints.constrainHeight(mainSize);
+ }
+ } else {
+ // INTRINSIC CROSS SIZE
+ // The spec wants us to perform layout into the given available main-axis
+ // space and return the cross size. That's too expensive, so instead we
+ // size inflexible children according to their max intrinsic size in the
+ // main direction and use those constraints to determine their max
+ // intrinsic size in the cross direction. We don't care if the caller
+ // asked for max or min -- the answer is always computed using the
+ // max size in the main direction.
+
+ double availableMainSpace;
+ BoxConstraints childConstraints;
+ switch(_direction) {
+ case FlexDirection.horizontal:
+ childConstraints = new BoxConstraints(maxWidth: constraints.maxWidth);
+ availableMainSpace = constraints.maxWidth;
+ break;
+ case FlexDirection.vertical:
+ childConstraints = new BoxConstraints(maxHeight: constraints.maxHeight);
+ availableMainSpace = constraints.maxHeight;
+ break;
+ }
+
+ // Get inflexible space using the max in the main direction
+ int totalFlex = 0;
+ double inflexibleSpace = 0.0;
+ double maxCrossSize = 0.0;
+ RenderBox child = firstChild;
+ while (child != null) {
+ int flex = _getFlex(child);
+ totalFlex += flex;
+ double mainSize;
+ double crossSize;
+ if (flex == 0) {
+ switch (_direction) {
+ case FlexDirection.horizontal:
+ mainSize = child.getMaxIntrinsicWidth(childConstraints);
+ BoxConstraints widthConstraints =
+ new BoxConstraints(minWidth: mainSize, maxWidth: mainSize);
+ crossSize = child.getMaxIntrinsicHeight(widthConstraints);
+ break;
+ case FlexDirection.vertical:
+ mainSize = child.getMaxIntrinsicHeight(childConstraints);
+ BoxConstraints heightConstraints =
+ new BoxConstraints(minWidth: mainSize, maxWidth: mainSize);
+ crossSize = child.getMaxIntrinsicWidth(heightConstraints);
+ break;
+ }
+ inflexibleSpace += mainSize;
+ maxCrossSize = math.max(maxCrossSize, crossSize);
+ }
+ assert(child.parentData is FlexBoxParentData);
+ child = child.parentData.nextSibling;
+ }
+
+ // Determine the spacePerFlex by allocating the remaining available space
+ double spacePerFlex = (availableMainSpace - inflexibleSpace) / totalFlex;
+
+ // Size remaining items, find the maximum cross size
+ child = firstChild;
+ while (child != null) {
+ int flex = _getFlex(child);
+ if (flex > 0) {
+ double childMainSize = spacePerFlex * flex;
+ double crossSize;
+ switch (_direction) {
+ case FlexDirection.horizontal:
+ BoxConstraints childConstraints =
+ new BoxConstraints(minWidth: childMainSize, maxWidth: childMainSize);
+ crossSize = child.getMaxIntrinsicHeight(childConstraints);
+ break;
+ case FlexDirection.vertical:
+ BoxConstraints childConstraints =
+ new BoxConstraints(minHeight: childMainSize, maxHeight: childMainSize);
+ crossSize = child.getMaxIntrinsicWidth(childConstraints);
+ break;
+ }
+ maxCrossSize = math.max(maxCrossSize, crossSize);
+ }
+ assert(child.parentData is FlexBoxParentData);
+ child = child.parentData.nextSibling;
+ }
+
+ // Ensure that we don't violate the given constraints with our result
+ switch(_direction) {
+ case FlexDirection.horizontal:
+ return constraints.constrainHeight(maxCrossSize);
+ case FlexDirection.vertical:
+ return constraints.constrainWidth(maxCrossSize);
+ }
+ }
+ }
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ return _getIntrinsicSize(
+ constraints: constraints,
+ sizingDirection: FlexDirection.horizontal,
+ childSize: (c, innerConstraints) => c.getMinIntrinsicWidth(innerConstraints)
+ );
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ return _getIntrinsicSize(
+ constraints: constraints,
+ sizingDirection: FlexDirection.horizontal,
+ childSize: (c, innerConstraints) => c.getMaxIntrinsicWidth(innerConstraints)
+ );
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ return _getIntrinsicSize(
+ constraints: constraints,
+ sizingDirection: FlexDirection.vertical,
+ childSize: (c, innerConstraints) => c.getMinIntrinsicHeight(innerConstraints)
+ );
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ return _getIntrinsicSize(
+ constraints: constraints,
+ sizingDirection: FlexDirection.vertical,
+ childSize: (c, innerConstraints) => c.getMaxIntrinsicHeight(innerConstraints));
+ }
+
+ double computeDistanceToActualBaseline(TextBaseline baseline) {
+ if (_direction == FlexDirection.horizontal)
+ return defaultComputeDistanceToHighestActualBaseline(baseline);
+ return defaultComputeDistanceToFirstActualBaseline(baseline);
+ }
+
+ int _getFlex(RenderBox child) {
+ assert(child.parentData is FlexBoxParentData);
+ return child.parentData.flex != null ? child.parentData.flex : 0;
+ }
+
+ double _getCrossSize(RenderBox child) {
+ return (_direction == FlexDirection.horizontal) ? child.size.height : child.size.width;
+ }
+
+ double _getMainSize(RenderBox child) {
+ return (_direction == FlexDirection.horizontal) ? child.size.width : child.size.height;
+ }
+
+ void performLayout() {
+ // Based on http://www.w3.org/TR/css-flexbox-1/ Section 9.7 Resolving Flexible Lengths
+ // Steps 1-3. Determine used flex factor, size inflexible items, calculate free space
+ int totalFlex = 0;
+ int totalChildren = 0;
+ assert(constraints != null);
+ final double mainSize = (_direction == FlexDirection.horizontal) ? constraints.maxWidth : constraints.maxHeight;
+ double crossSize = 0.0; // This will be determined after laying out the children
+ double freeSpace = mainSize;
+ RenderBox child = firstChild;
+ while (child != null) {
+ assert(child.parentData is FlexBoxParentData);
+ totalChildren++;
+ int flex = _getFlex(child);
+ if (flex > 0) {
+ totalFlex += child.parentData.flex;
+ } else {
+ BoxConstraints innerConstraints;
+ if (alignItems == FlexAlignItems.stretch) {
+ switch (_direction) {
+ case FlexDirection.horizontal:
+ innerConstraints = new BoxConstraints(maxWidth: constraints.maxWidth,
+ minHeight: constraints.minHeight,
+ maxHeight: constraints.maxHeight);
+ break;
+ case FlexDirection.vertical:
+ innerConstraints = new BoxConstraints(minWidth: constraints.minWidth,
+ maxWidth: constraints.maxWidth,
+ maxHeight: constraints.maxHeight);
+ break;
+ }
+ } else {
+ innerConstraints = constraints.loosen();
+ }
+ child.layout(innerConstraints, parentUsesSize: true);
+ freeSpace -= _getMainSize(child);
+ crossSize = math.max(crossSize, _getCrossSize(child));
+ }
+ child = child.parentData.nextSibling;
+ }
+
+ // Steps 4-5. Distribute remaining space to flexible children.
+ double spacePerFlex = totalFlex > 0 ? (freeSpace / totalFlex) : 0.0;
+ double usedSpace = 0.0;
+ child = firstChild;
+ while (child != null) {
+ int flex = _getFlex(child);
+ if (flex > 0) {
+ double spaceForChild = spacePerFlex * flex;
+ BoxConstraints innerConstraints;
+ switch (_direction) {
+ case FlexDirection.horizontal:
+ innerConstraints = new BoxConstraints(maxHeight: constraints.maxHeight,
+ minWidth: spaceForChild,
+ maxWidth: spaceForChild);
+ break;
+ case FlexDirection.vertical:
+ innerConstraints = new BoxConstraints(minHeight: spaceForChild,
+ maxHeight: spaceForChild,
+ maxWidth: constraints.maxWidth);
+ break;
+ }
+ child.layout(innerConstraints, parentUsesSize: true);
+ usedSpace += _getMainSize(child);
+ crossSize = math.max(crossSize, _getCrossSize(child));
+ }
+ assert(child.parentData is FlexBoxParentData);
+ child = child.parentData.nextSibling;
+ }
+
+ // Section 8.2: Axis Alignment using the justify-content property
+ double remainingSpace = math.max(0.0, freeSpace - usedSpace);
+ double leadingSpace;
+ double betweenSpace;
+ child = firstChild;
+ switch (_justifyContent) {
+ case FlexJustifyContent.start:
+ leadingSpace = 0.0;
+ betweenSpace = 0.0;
+ break;
+ case FlexJustifyContent.end:
+ leadingSpace = remainingSpace;
+ betweenSpace = 0.0;
+ break;
+ case FlexJustifyContent.center:
+ leadingSpace = remainingSpace / 2.0;
+ betweenSpace = 0.0;
+ break;
+ case FlexJustifyContent.spaceBetween:
+ leadingSpace = 0.0;
+ betweenSpace = totalChildren > 1 ? remainingSpace / (totalChildren - 1) : 0.0;
+ break;
+ case FlexJustifyContent.spaceAround:
+ betweenSpace = totalChildren > 0 ? remainingSpace / totalChildren : 0.0;
+ leadingSpace = betweenSpace / 2.0;
+ break;
+ }
+
+ switch (_direction) {
+ case FlexDirection.horizontal:
+ size = constraints.constrain(new Size(mainSize, crossSize));
+ crossSize = size.height;
+ break;
+ case FlexDirection.vertical:
+ size = constraints.constrain(new Size(crossSize, mainSize));
+ crossSize = size.width;
+ break;
+ }
+
+ // Position elements. For now, center the flex items in the cross direction
+ double childMainPosition = leadingSpace;
+ child = firstChild;
+ while (child != null) {
+ assert(child.parentData is FlexBoxParentData);
+ double childCrossPosition;
+ switch (_alignItems) {
+ case FlexAlignItems.stretch:
+ case FlexAlignItems.start:
+ childCrossPosition = 0.0;
+ break;
+ case FlexAlignItems.end:
+ childCrossPosition = crossSize - _getCrossSize(child);
+ break;
+ case FlexAlignItems.center:
+ childCrossPosition = crossSize / 2.0 - _getCrossSize(child) / 2.0;
+ break;
+ }
+ switch (_direction) {
+ case FlexDirection.horizontal:
+ child.parentData.position = new Point(childMainPosition, childCrossPosition);
+ break;
+ case FlexDirection.vertical:
+ child.parentData.position = new Point(childCrossPosition, childMainPosition);
+ break;
+ }
+ childMainPosition += _getMainSize(child) + betweenSpace;
+ child = child.parentData.nextSibling;
+ }
+ }
+
+ void hitTestChildren(HitTestResult result, { Point position }) {
+ defaultHitTestChildren(result, position: position);
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ defaultPaint(canvas, offset);
+ }
+}
diff --git a/packages/flutter/lib/rendering/object.dart b/packages/flutter/lib/rendering/object.dart
new file mode 100644
index 0000000..b0a1b88
--- /dev/null
+++ b/packages/flutter/lib/rendering/object.dart
@@ -0,0 +1,717 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+import 'dart:sky' as sky;
+import 'dart:sky' show Point, Offset, Size, Rect, Color, Paint, Path;
+
+import 'package:sky/base/debug.dart';
+import 'package:sky/base/hit_test.dart';
+import 'package:sky/base/node.dart';
+import 'package:sky/base/scheduler.dart' as scheduler;
+
+export 'dart:sky' show Point, Offset, Size, Rect, Color, Paint, Path;
+export 'package:sky/base/hit_test.dart' show HitTestTarget, HitTestEntry, HitTestResult;
+
+class ParentData {
+ void detach() {
+ detachSiblings();
+ }
+ void detachSiblings() { } // workaround for lack of inter-class mixins in Dart
+ void merge(ParentData other) {
+ // override this in subclasses to merge in data from other into this
+ assert(other.runtimeType == this.runtimeType);
+ }
+ String toString() => '<none>';
+}
+
+class PaintingCanvas extends sky.Canvas {
+ PaintingCanvas(sky.PictureRecorder recorder, Rect bounds) : super(recorder, bounds);
+
+ List<RenderObject> _descendentsWithPaintingCanvases = new List<RenderObject>(); // used by RenderObject._updatePaintingCanvas() to find out which RenderObjects to ask to paint
+ void paintChild(RenderObject child, Point point) {
+ if (child.createNewDisplayList) {
+ assert(!_descendentsWithPaintingCanvases.contains(child));
+ _descendentsWithPaintingCanvases.add(child);
+ drawPaintingNode(child._paintingNode, point);
+ } else {
+ child._paintOnCanvas(this, point.toOffset());
+ }
+ }
+}
+
+abstract class Constraints {
+ const Constraints();
+ bool get isTight;
+}
+
+typedef void LayoutCallback(Constraints constraints);
+
+abstract class RenderObject extends AbstractNode implements HitTestTarget {
+
+ // LAYOUT
+
+ // parentData is only for use by the RenderObject that actually lays this
+ // node out, and any other nodes who happen to know exactly what
+ // kind of node that is.
+ dynamic parentData; // TODO(ianh): change the type of this back to ParentData once the analyzer is cleverer
+ void setupParentData(RenderObject child) {
+ // override this to setup .parentData correctly for your class
+ assert(debugCanPerformMutations);
+ if (child.parentData is! ParentData)
+ child.parentData = new ParentData();
+ }
+
+ void adoptChild(RenderObject child) { // only for use by subclasses
+ // call this whenever you decide a node is a child
+ assert(debugCanPerformMutations);
+ assert(child != null);
+ setupParentData(child);
+ super.adoptChild(child);
+ markNeedsLayout();
+ }
+ void dropChild(RenderObject child) { // only for use by subclasses
+ assert(debugCanPerformMutations);
+ assert(child != null);
+ assert(child.parentData != null);
+ child._cleanRelayoutSubtreeRoot();
+ child.parentData.detach();
+ super.dropChild(child);
+ markNeedsLayout();
+ }
+
+ static bool _debugDoingLayout = false;
+ static bool get debugDoingLayout => _debugDoingLayout;
+ bool _debugDoingThisResize = false;
+ bool get debugDoingThisResize => _debugDoingThisResize;
+ bool _debugDoingThisLayout = false;
+ bool get debugDoingThisLayout => _debugDoingThisLayout;
+ static RenderObject _debugActiveLayout = null;
+ static RenderObject get debugActiveLayout => _debugActiveLayout;
+ bool _debugDoingThisLayoutWithCallback = false;
+ bool _debugMutationsLocked = false;
+ bool _debugCanParentUseSize;
+ bool get debugCanParentUseSize => _debugCanParentUseSize;
+ bool get debugCanPerformMutations {
+ RenderObject node = this;
+ while (true) {
+ if (node._debugDoingThisLayoutWithCallback)
+ return true;
+ if (node._debugMutationsLocked)
+ return false;
+ if (node.parent is! RenderObject)
+ return true;
+ node = node.parent;
+ }
+ }
+
+ static List<RenderObject> _nodesNeedingLayout = new List<RenderObject>();
+ bool _needsLayout = true;
+ bool get needsLayout => _needsLayout;
+ RenderObject _relayoutSubtreeRoot;
+ Constraints _constraints;
+ Constraints get constraints => _constraints;
+ bool debugDoesMeetConstraints(); // override this in a subclass to verify that your state matches the constraints object
+ bool debugAncestorsAlreadyMarkedNeedsLayout() {
+ if (_relayoutSubtreeRoot == null)
+ return true; // we haven't yet done layout even once, so there's nothing for us to do
+ RenderObject node = this;
+ while (node != _relayoutSubtreeRoot) {
+ assert(node._relayoutSubtreeRoot == _relayoutSubtreeRoot);
+ assert(node.parent != null);
+ node = node.parent as RenderObject;
+ if (!node._needsLayout)
+ return false;
+ }
+ assert(node._relayoutSubtreeRoot == node);
+ return true;
+ }
+ void markNeedsLayout() {
+ assert(debugCanPerformMutations);
+ if (_needsLayout) {
+ assert(debugAncestorsAlreadyMarkedNeedsLayout());
+ return;
+ }
+ _needsLayout = true;
+ assert(_relayoutSubtreeRoot != null);
+ if (_relayoutSubtreeRoot != this) {
+ final parent = this.parent; // TODO(ianh): Remove this once the analyzer is cleverer
+ assert(parent is RenderObject);
+ parent.markNeedsLayout();
+ assert(parent == this.parent); // TODO(ianh): Remove this once the analyzer is cleverer
+ } else {
+ _nodesNeedingLayout.add(this);
+ scheduler.ensureVisualUpdate();
+ }
+ }
+ void _cleanRelayoutSubtreeRoot() {
+ if (_relayoutSubtreeRoot != this) {
+ _relayoutSubtreeRoot = null;
+ _needsLayout = true;
+ _cleanRelayoutSubtreeRootChildren();
+ }
+ }
+ void _cleanRelayoutSubtreeRootChildren() { } // workaround for lack of inter-class mixins in Dart
+ void scheduleInitialLayout() {
+ assert(attached);
+ assert(parent == null);
+ assert(_relayoutSubtreeRoot == null);
+ _relayoutSubtreeRoot = this;
+ _nodesNeedingLayout.add(this);
+ _nodesNeedingPaint.add(this);
+ scheduler.ensureVisualUpdate();
+ }
+ static void flushLayout() {
+ sky.tracing.begin('RenderObject.flushLayout');
+ _debugDoingLayout = true;
+ try {
+ List<RenderObject> dirtyNodes = _nodesNeedingLayout;
+ _nodesNeedingLayout = new List<RenderObject>();
+ dirtyNodes..sort((a, b) => a.depth - b.depth)..forEach((node) {
+ if (node._needsLayout && node.attached)
+ node.layoutWithoutResize();
+ });
+ } finally {
+ _debugDoingLayout = false;
+ sky.tracing.end('RenderObject.flushLayout');
+ }
+ }
+ void layoutWithoutResize() {
+ try {
+ assert(_relayoutSubtreeRoot == this);
+ RenderObject debugPreviousActiveLayout;
+ assert(!_debugMutationsLocked);
+ assert(!_debugDoingThisLayoutWithCallback);
+ assert(() {
+ _debugMutationsLocked = true;
+ _debugCanParentUseSize = false;
+ _debugDoingThisLayout = true;
+ debugPreviousActiveLayout = _debugActiveLayout;
+ _debugActiveLayout = this;
+ return true;
+ });
+ performLayout();
+ assert(() {
+ _debugActiveLayout = debugPreviousActiveLayout;
+ _debugDoingThisLayout = false;
+ _debugCanParentUseSize = null;
+ _debugMutationsLocked = false;
+ return true;
+ });
+ } catch (e) {
+ print('Exception raised during layout:\n${e}\nContext:\n${this}');
+ if (inDebugBuild)
+ rethrow;
+ return;
+ }
+ _needsLayout = false;
+ markNeedsPaint();
+ }
+ void layout(Constraints constraints, { bool parentUsesSize: false }) {
+ final parent = this.parent; // TODO(ianh): Remove this once the analyzer is cleverer
+ RenderObject relayoutSubtreeRoot;
+ if (!parentUsesSize || sizedByParent || constraints.isTight || parent is! RenderObject)
+ relayoutSubtreeRoot = this;
+ else
+ relayoutSubtreeRoot = parent._relayoutSubtreeRoot;
+ assert(parent == this.parent); // TODO(ianh): Remove this once the analyzer is cleverer
+ if (!needsLayout && constraints == _constraints && relayoutSubtreeRoot == _relayoutSubtreeRoot)
+ return;
+ _constraints = constraints;
+ _relayoutSubtreeRoot = relayoutSubtreeRoot;
+ assert(!_debugMutationsLocked);
+ assert(!_debugDoingThisLayoutWithCallback);
+ assert(() {
+ _debugMutationsLocked = true;
+ _debugCanParentUseSize = parentUsesSize;
+ return true;
+ });
+ if (sizedByParent) {
+ assert(() { _debugDoingThisResize = true; return true; });
+ performResize();
+ assert(() { _debugDoingThisResize = false; return true; });
+ }
+ RenderObject debugPreviousActiveLayout;
+ assert(() {
+ _debugDoingThisLayout = true;
+ debugPreviousActiveLayout = _debugActiveLayout;
+ _debugActiveLayout = this;
+ return true;
+ });
+ performLayout();
+ assert(() {
+ _debugActiveLayout = debugPreviousActiveLayout;
+ _debugDoingThisLayout = false;
+ _debugCanParentUseSize = null;
+ _debugMutationsLocked = false;
+ return true;
+ });
+ assert(debugDoesMeetConstraints());
+ _needsLayout = false;
+ markNeedsPaint();
+ assert(parent == this.parent); // TODO(ianh): Remove this once the analyzer is cleverer
+ }
+ bool get sizedByParent => false; // return true if the constraints are the only input to the sizing algorithm (in particular, child nodes have no impact)
+ void performResize(); // set the local dimensions, using only the constraints (only called if sizedByParent is true)
+ void performLayout();
+ // Override this to perform relayout without your parent's
+ // involvement.
+ //
+ // This is called during layout. If sizedByParent is true, then
+ // performLayout() should not change your dimensions, only do that
+ // in performResize(). If sizedByParent is false, then set both
+ // your dimensions and do your children's layout here.
+ //
+ // When calling layout() on your children, pass in
+ // "parentUsesSize: true" if your size or layout is dependent on
+ // your child's size or intrinsic dimensions.
+ void invokeLayoutCallback(LayoutCallback callback) {
+ assert(_debugMutationsLocked);
+ assert(_debugDoingThisLayout);
+ assert(!_debugDoingThisLayoutWithCallback);
+ assert(() {
+ _debugDoingThisLayoutWithCallback = true;
+ return true;
+ });
+ callback(constraints);
+ assert(() {
+ _debugDoingThisLayoutWithCallback = false;
+ return true;
+ });
+ }
+
+ // when the parent has rotated (e.g. when the screen has been turned
+ // 90 degrees), immediately prior to layout() being called for the
+ // new dimensions, rotate() is called with the old and new angles.
+ // The next time paint() is called, the coordinate space will have
+ // been rotated N quarter-turns clockwise, where:
+ // N = newAngle-oldAngle
+ // ...but the rendering is expected to remain the same, pixel for
+ // pixel, on the output device. Then, the layout() method or
+ // equivalent will be invoked.
+
+ void rotate({
+ int oldAngle, // 0..3
+ int newAngle, // 0..3
+ Duration time
+ }) { }
+
+
+ // PAINTING
+
+ static bool _debugDoingPaint = false;
+ static bool get debugDoingPaint => _debugDoingPaint;
+ static void set debugDoingPaint(bool value) {
+ _debugDoingPaint = value;
+ }
+ bool _debugDoingThisPaint = false;
+ bool get debugDoingThisPaint => _debugDoingThisPaint;
+ static RenderObject _debugActivePaint = null;
+ static RenderObject get debugActivePaint => _debugActivePaint;
+
+ static List<RenderObject> _nodesNeedingPaint = new List<RenderObject>();
+
+ final sky.PaintingNode _paintingNode = new sky.PaintingNode();
+ sky.PaintingNode get paintingNode {
+ assert(createNewDisplayList);
+ return _paintingNode;
+ }
+ bool _needsPaint = true;
+ bool get needsPaint => _needsPaint;
+
+ void markNeedsPaint() {
+ assert(!debugDoingPaint);
+ if (!attached) return; // Don't try painting things that aren't in the hierarchy
+ if (_needsPaint) return;
+ if (createNewDisplayList) {
+ _needsPaint = true;
+ _nodesNeedingPaint.add(this);
+ scheduler.ensureVisualUpdate();
+ } else {
+ assert(parent != null); // parent always exists on this path because the root node is a RenderView, which sets createNewDisplayList.
+ if (parent is RenderObject) {
+ (parent as RenderObject).markNeedsPaint(); // TODO(ianh): remove the cast once the analyzer is cleverer
+ }
+ }
+ }
+
+ static void flushPaint() {
+ sky.tracing.begin('RenderObject.flushPaint');
+ _debugDoingPaint = true;
+ try {
+ List<RenderObject> dirtyNodes = _nodesNeedingPaint;
+ _nodesNeedingPaint = new List<RenderObject>();
+ for (RenderObject node in dirtyNodes..sort((a, b) => a.depth - b.depth)) {
+ if (node._needsPaint && node.attached)
+ node._updatePaintingCanvas();
+ };
+ assert(_nodesNeedingPaint.length == 0);
+ } finally {
+ _debugDoingPaint = false;
+ sky.tracing.end('RenderObject.flushPaint');
+ }
+ }
+
+ void _updatePaintingCanvas() {
+ assert(!_needsLayout);
+ assert(createNewDisplayList);
+ sky.PictureRecorder recorder = new sky.PictureRecorder();
+ PaintingCanvas canvas = new PaintingCanvas(recorder, paintBounds);
+ _needsPaint = false;
+ try {
+ _paintOnCanvas(canvas, Offset.zero);
+ } catch (e) {
+ print('Exception raised during _updatePaintingCanvas:\n${e}\nContext:\n${this}');
+ if (inDebugBuild)
+ rethrow;
+ return;
+ }
+ assert(!_needsLayout); // check that the paint() method didn't mark us dirty again
+ assert(!_needsPaint); // check that the paint() method didn't mark us dirty again
+ _paintingNode.setBackingDrawable(recorder.endRecordingAsDrawable());
+ if (canvas._descendentsWithPaintingCanvases != null) {
+ for (RenderObject node in canvas._descendentsWithPaintingCanvases) {
+ assert(node.attached == attached);
+ if (node._needsPaint)
+ node._updatePaintingCanvas();
+ };
+ }
+ }
+
+ void _paintOnCanvas(PaintingCanvas canvas, Offset offset) {
+ _needsPaint = false;
+ assert(!_debugDoingThisPaint);
+ RenderObject debugLastActivePaint;
+ assert(() {
+ _debugDoingThisPaint = true;
+ debugLastActivePaint = _debugActivePaint;
+ _debugActivePaint = this;
+ debugPaint(canvas, offset);
+ if (debugPaintBoundsEnabled) {
+ canvas.save();
+ canvas.clipRect(paintBounds.shift(offset));
+ }
+ return true;
+ });
+ paint(canvas, offset);
+ assert(() {
+ if (debugPaintBoundsEnabled)
+ canvas.restore();
+ _debugActivePaint = debugLastActivePaint;
+ _debugDoingThisPaint = false;
+ return true;
+ });
+ assert(!_needsPaint);
+ }
+
+ bool get createNewDisplayList => false;
+ Rect get paintBounds;
+ void debugPaint(PaintingCanvas canvas, Offset offset) { }
+ void paint(PaintingCanvas canvas, Offset offset) { }
+
+
+ // EVENTS
+
+ void handleEvent(sky.Event event, HitTestEntry entry) {
+ // override this if you have a client, to hand it to the client
+ // override this if you want to do anything with the event
+ }
+
+
+ // HIT TESTING
+
+ // RenderObject subclasses are expected to have a method like the
+ // following (with the signature being whatever passes for coordinates
+ // for this particular class):
+ // bool hitTest(HitTestResult result, { Point position }) {
+ // // If (x,y) is not inside this node, then return false. (You
+ // // can assume that the given coordinate is inside your
+ // // dimensions. You only need to check this if you're an
+ // // irregular shape, e.g. if you have a hole.)
+ // // Otherwise:
+ // // For each child that intersects x,y, in z-order starting from the top,
+ // // call hitTest() for that child, passing it /result/, and the coordinates
+ // // converted to the child's coordinate origin, and stop at the first child
+ // // that returns true.
+ // // Then, add yourself to /result/, and return true.
+ // }
+ // You must not add yourself to /result/ if you return false.
+
+
+ String toString([String prefix = '']) {
+ RenderObject debugPreviousActiveLayout = _debugActiveLayout;
+ _debugActiveLayout = null;
+ String header = '${runtimeType}';
+ if (_relayoutSubtreeRoot != null && _relayoutSubtreeRoot != this) {
+ int count = 1;
+ RenderObject target = parent;
+ while (target != null && target != _relayoutSubtreeRoot) {
+ target = target.parent as RenderObject;
+ count += 1;
+ }
+ header += ' relayoutSubtreeRoot=up$count';
+ }
+ if (_needsLayout)
+ header += ' NEEDS-LAYOUT';
+ if (!attached)
+ header += ' DETACHED';
+ prefix += ' ';
+ String result = '${header}\n${debugDescribeSettings(prefix)}${debugDescribeChildren(prefix)}';
+ _debugActiveLayout = debugPreviousActiveLayout;
+ return result;
+ }
+ String debugDescribeSettings(String prefix) => '${prefix}parentData: ${parentData}\n${prefix}constraints: ${constraints}\n';
+ String debugDescribeChildren(String prefix) => '';
+
+}
+
+double clamp({ double min: 0.0, double value: 0.0, double max: double.INFINITY }) {
+ assert(min != null);
+ assert(value != null);
+ assert(max != null);
+ return math.max(min, math.min(max, value));
+}
+
+
+// GENERIC MIXIN FOR RENDER NODES WITH ONE CHILD
+
+abstract class RenderObjectWithChildMixin<ChildType extends RenderObject> implements RenderObject {
+ ChildType _child;
+ ChildType get child => _child;
+ void set child (ChildType value) {
+ if (_child != null)
+ dropChild(_child);
+ _child = value;
+ if (_child != null)
+ adoptChild(_child);
+ }
+ void attachChildren() {
+ if (_child != null)
+ _child.attach();
+ }
+ void detachChildren() {
+ if (_child != null)
+ _child.detach();
+ }
+ void _cleanRelayoutSubtreeRootChildren() {
+ if (_child != null)
+ _child._cleanRelayoutSubtreeRoot();
+ }
+ String debugDescribeChildren(String prefix) {
+ if (child != null)
+ return '${prefix}child: ${child.toString(prefix)}';
+ return '';
+ }
+}
+
+
+// GENERIC MIXIN FOR RENDER NODES WITH A LIST OF CHILDREN
+
+abstract class ContainerParentDataMixin<ChildType extends RenderObject> {
+ ChildType previousSibling;
+ ChildType nextSibling;
+ void detachSiblings() {
+ if (previousSibling != null) {
+ assert(previousSibling.parentData is ContainerParentDataMixin<ChildType>);
+ assert(previousSibling != this);
+ assert(previousSibling.parentData.nextSibling == this);
+ previousSibling.parentData.nextSibling = nextSibling;
+ }
+ if (nextSibling != null) {
+ assert(nextSibling.parentData is ContainerParentDataMixin<ChildType>);
+ assert(nextSibling != this);
+ assert(nextSibling.parentData.previousSibling == this);
+ nextSibling.parentData.previousSibling = previousSibling;
+ }
+ previousSibling = null;
+ nextSibling = null;
+ }
+}
+
+abstract class ContainerRenderObjectMixin<ChildType extends RenderObject, ParentDataType extends ContainerParentDataMixin<ChildType>> implements RenderObject {
+
+ bool _debugUltimatePreviousSiblingOf(ChildType child, { ChildType equals }) {
+ assert(child.parentData is ParentDataType);
+ while (child.parentData.previousSibling != null) {
+ assert(child.parentData.previousSibling != child);
+ child = child.parentData.previousSibling;
+ assert(child.parentData is ParentDataType);
+ }
+ return child == equals;
+ }
+ bool _debugUltimateNextSiblingOf(ChildType child, { ChildType equals }) {
+ assert(child.parentData is ParentDataType);
+ while (child.parentData.nextSibling != null) {
+ assert(child.parentData.nextSibling != child);
+ child = child.parentData.nextSibling;
+ assert(child.parentData is ParentDataType);
+ }
+ return child == equals;
+ }
+
+ int _childCount = 0;
+ int get childCount => _childCount;
+
+ ChildType _firstChild;
+ ChildType _lastChild;
+ void _addToChildList(ChildType child, { ChildType before }) {
+ assert(child.parentData is ParentDataType);
+ assert(child.parentData.nextSibling == null);
+ assert(child.parentData.previousSibling == null);
+ _childCount += 1;
+ assert(_childCount > 0);
+ if (before == null) {
+ // append at the end (_lastChild)
+ child.parentData.previousSibling = _lastChild;
+ if (_lastChild != null) {
+ assert(_lastChild.parentData is ParentDataType);
+ _lastChild.parentData.nextSibling = child;
+ }
+ _lastChild = child;
+ if (_firstChild == null)
+ _firstChild = child;
+ } else {
+ assert(_firstChild != null);
+ assert(_lastChild != null);
+ assert(_debugUltimatePreviousSiblingOf(before, equals: _firstChild));
+ assert(_debugUltimateNextSiblingOf(before, equals: _lastChild));
+ assert(before.parentData is ParentDataType);
+ if (before.parentData.previousSibling == null) {
+ // insert at the start (_firstChild); we'll end up with two or more children
+ assert(before == _firstChild);
+ child.parentData.nextSibling = before;
+ before.parentData.previousSibling = child;
+ _firstChild = child;
+ } else {
+ // insert in the middle; we'll end up with three or more children
+ // set up links from child to siblings
+ child.parentData.previousSibling = before.parentData.previousSibling;
+ child.parentData.nextSibling = before;
+ // set up links from siblings to child
+ assert(child.parentData.previousSibling.parentData is ParentDataType);
+ assert(child.parentData.nextSibling.parentData is ParentDataType);
+ child.parentData.previousSibling.parentData.nextSibling = child;
+ child.parentData.nextSibling.parentData.previousSibling = child;
+ assert(before.parentData.previousSibling == child);
+ }
+ }
+ }
+ void add(ChildType child, { ChildType before }) {
+ assert(child != this);
+ assert(before != this);
+ assert(child != before);
+ assert(child != _firstChild);
+ assert(child != _lastChild);
+ adoptChild(child);
+ _addToChildList(child, before: before);
+ }
+ void addAll(List<ChildType> children) {
+ if (children != null)
+ for (ChildType child in children)
+ add(child);
+ }
+ void _removeFromChildList(ChildType child) {
+ assert(child.parentData is ParentDataType);
+ assert(_debugUltimatePreviousSiblingOf(child, equals: _firstChild));
+ assert(_debugUltimateNextSiblingOf(child, equals: _lastChild));
+ assert(_childCount >= 0);
+ if (child.parentData.previousSibling == null) {
+ assert(_firstChild == child);
+ _firstChild = child.parentData.nextSibling;
+ } else {
+ assert(child.parentData.previousSibling.parentData is ParentDataType);
+ child.parentData.previousSibling.parentData.nextSibling = child.parentData.nextSibling;
+ }
+ if (child.parentData.nextSibling == null) {
+ assert(_lastChild == child);
+ _lastChild = child.parentData.previousSibling;
+ } else {
+ assert(child.parentData.nextSibling.parentData is ParentDataType);
+ child.parentData.nextSibling.parentData.previousSibling = child.parentData.previousSibling;
+ }
+ child.parentData.previousSibling = null;
+ child.parentData.nextSibling = null;
+ _childCount -= 1;
+ }
+ void remove(ChildType child) {
+ _removeFromChildList(child);
+ dropChild(child);
+ }
+ void removeAll() {
+ ChildType child = _firstChild;
+ while (child != null) {
+ assert(child.parentData is ParentDataType);
+ ChildType next = child.parentData.nextSibling;
+ child.parentData.previousSibling = null;
+ child.parentData.nextSibling = null;
+ dropChild(child);
+ child = next;
+ }
+ _firstChild = null;
+ _lastChild = null;
+ _childCount = 0;
+ }
+ void move(ChildType child, { ChildType before }) {
+ assert(child != this);
+ assert(before != this);
+ assert(child != before);
+ assert(child.parent == this);
+ assert(child.parentData is ParentDataType);
+ if (child.parentData.nextSibling == before)
+ return;
+ _removeFromChildList(child);
+ _addToChildList(child, before: before);
+ }
+ void redepthChildren() {
+ ChildType child = _firstChild;
+ while (child != null) {
+ redepthChild(child);
+ assert(child.parentData is ParentDataType);
+ child = child.parentData.nextSibling;
+ }
+ }
+ void attachChildren() {
+ ChildType child = _firstChild;
+ while (child != null) {
+ child.attach();
+ assert(child.parentData is ParentDataType);
+ child = child.parentData.nextSibling;
+ }
+ }
+ void detachChildren() {
+ ChildType child = _firstChild;
+ while (child != null) {
+ child.detach();
+ assert(child.parentData is ParentDataType);
+ child = child.parentData.nextSibling;
+ }
+ }
+ void _cleanRelayoutSubtreeRootChildren() {
+ ChildType child = _firstChild;
+ while (child != null) {
+ child._cleanRelayoutSubtreeRoot();
+ assert(child.parentData is ParentDataType);
+ child = child.parentData.nextSibling;
+ }
+ }
+
+ ChildType get firstChild => _firstChild;
+ ChildType get lastChild => _lastChild;
+ ChildType childAfter(ChildType child) {
+ assert(child.parentData is ParentDataType);
+ return child.parentData.nextSibling;
+ }
+
+ String debugDescribeChildren(String prefix) {
+ String result = '';
+ int count = 1;
+ ChildType child = _firstChild;
+ while (child != null) {
+ result += '${prefix}child ${count}: ${child.toString(prefix)}';
+ count += 1;
+ child = child.parentData.nextSibling;
+ }
+ return result;
+ }
+}
diff --git a/packages/flutter/lib/rendering/paragraph.dart b/packages/flutter/lib/rendering/paragraph.dart
new file mode 100644
index 0000000..8bd7292
--- /dev/null
+++ b/packages/flutter/lib/rendering/paragraph.dart
@@ -0,0 +1,198 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+
+abstract class InlineBase {
+ sky.Node _toDOM(sky.Document owner);
+ String toString([String prefix = '']);
+}
+
+class InlineText extends InlineBase {
+ InlineText(this.text) {
+ assert(text != null);
+ }
+
+ final String text;
+
+ sky.Node _toDOM(sky.Document owner) {
+ return owner.createText(text);
+ }
+
+ bool operator ==(other) => other is InlineText && text == other.text;
+ int get hashCode => text.hashCode;
+
+ String toString([String prefix = '']) => '${prefix}InlineText: "${text}"';
+}
+
+class InlineStyle extends InlineBase {
+ InlineStyle(this.style, this.children) {
+ assert(style != null);
+ assert(children != null);
+ }
+
+ final TextStyle style;
+ final List<InlineBase> children;
+
+ sky.Node _toDOM(sky.Document owner) {
+ sky.Element parent = owner.createElement('t');
+ style.applyToCSSStyle(parent.style);
+ for (InlineBase child in children) {
+ parent.appendChild(child._toDOM(owner));
+ }
+ return parent;
+ }
+
+ bool operator ==(other) {
+ if (identical(this, other))
+ return true;
+ if (other is! InlineStyle
+ || style != other.style
+ || children.length != other.children.length)
+ return false;
+ for (int i = 0; i < children.length; ++i) {
+ if (children[i] != other.children[i])
+ return false;
+ }
+ return true;
+ }
+
+ int get hashCode {
+ int value = 373;
+ value = 37 * value + style.hashCode;
+ for (InlineBase child in children)
+ value = 37 * value + child.hashCode;
+ return value;
+ }
+
+ String toString([String prefix = '']) {
+ List<String> result = [];
+ result.add('${prefix}InlineStyle:');
+ var indent = '${prefix} ';
+ result.add('${style.toString(indent)}');
+ for (InlineBase child in children) {
+ result.add(child.toString(indent));
+ }
+ return result.join('\n');
+ }
+}
+
+// Unfortunately, using full precision floating point here causes bad layouts
+// because floating point math isn't associative. If we add and subtract
+// padding, for example, we'll get different values when we estimate sizes and
+// when we actually compute layout because the operations will end up associated
+// differently. To work around this problem for now, we round fractional pixel
+// values up to the nearest whole pixel value. The right long-term fix is to do
+// layout using fixed precision arithmetic.
+double _applyFloatingPointHack(double layoutValue) {
+ return layoutValue.ceilToDouble();
+}
+
+class RenderParagraph extends RenderBox {
+
+ RenderParagraph(InlineBase inlineValue) {
+ _layoutRoot.rootElement = _document.createElement('p');
+ inline = inlineValue;
+ }
+
+ final sky.Document _document = new sky.Document();
+ final sky.LayoutRoot _layoutRoot = new sky.LayoutRoot();
+
+ BoxConstraints _constraintsForCurrentLayout; // when null, we don't have a current layout
+
+ InlineBase _inline;
+ InlineBase get inline => _inline;
+ void set inline (InlineBase value) {
+ if (_inline == value)
+ return;
+ _inline = value;
+ _layoutRoot.rootElement.setChild(_inline._toDOM(_document));
+ _constraintsForCurrentLayout = null;
+ markNeedsLayout();
+ }
+
+ void _layout(BoxConstraints constraints) {
+ assert(constraints != null);
+ if (_constraintsForCurrentLayout == constraints)
+ return; // already cached this layout
+ _layoutRoot.maxWidth = constraints.maxWidth;
+ _layoutRoot.minWidth = constraints.minWidth;
+ _layoutRoot.minHeight = constraints.minHeight;
+ _layoutRoot.maxHeight = constraints.maxHeight;
+ _layoutRoot.layout();
+ _constraintsForCurrentLayout = constraints;
+ }
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ _layout(constraints);
+ return constraints.constrainWidth(
+ _applyFloatingPointHack(_layoutRoot.rootElement.minContentWidth));
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ _layout(constraints);
+ return constraints.constrainWidth(
+ _applyFloatingPointHack(_layoutRoot.rootElement.maxContentWidth));
+ }
+
+ double _getIntrinsicHeight(BoxConstraints constraints) {
+ _layout(constraints);
+ return constraints.constrainHeight(
+ _applyFloatingPointHack(_layoutRoot.rootElement.height));
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ return _getIntrinsicHeight(constraints);
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ return _getIntrinsicHeight(constraints);
+ }
+
+ double computeDistanceToActualBaseline(TextBaseline baseline) {
+ assert(!needsLayout);
+ _layout(constraints);
+ sky.Element root = _layoutRoot.rootElement;
+ switch (baseline) {
+ case TextBaseline.alphabetic: return root.alphabeticBaseline;
+ case TextBaseline.ideographic: return root.ideographicBaseline;
+ }
+ }
+
+ void performLayout() {
+ _layout(constraints);
+ sky.Element root = _layoutRoot.rootElement;
+ // rootElement.width always expands to fill, use maxContentWidth instead.
+ size = constraints.constrain(new Size(_applyFloatingPointHack(root.maxContentWidth),
+ _applyFloatingPointHack(root.height)));
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ // Ideally we could compute the min/max intrinsic width/height with a
+ // non-destructive operation. However, currently, computing these values
+ // will destroy state inside the layout root. If that happens, we need to
+ // get back the correct state by calling _layout again.
+ //
+ // TODO(abarth): Make computing the min/max intrinsic width/height
+ // a non-destructive operation.
+ // TODO(ianh): Make LayoutRoot support a paint offset so we don't
+ // need to translate for each span of text.
+ _layout(constraints);
+ canvas.translate(offset.dx, offset.dy);
+ _layoutRoot.paint(canvas);
+ canvas.translate(-offset.dx, -offset.dy);
+ }
+
+ // we should probably expose a way to do precise (inter-glpyh) hit testing
+
+ String debugDescribeSettings(String prefix) {
+ String result = '${super.debugDescribeSettings(prefix)}';
+ result += '${prefix}inline:\n${inline.toString("$prefix ")}\n';
+ return result;
+ }
+}
diff --git a/packages/flutter/lib/rendering/sky_binding.dart b/packages/flutter/lib/rendering/sky_binding.dart
new file mode 100644
index 0000000..42ce5cb
--- /dev/null
+++ b/packages/flutter/lib/rendering/sky_binding.dart
@@ -0,0 +1,145 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/base/scheduler.dart' as scheduler;
+import 'package:sky/base/hit_test.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+
+int _hammingWeight(int value) {
+ if (value == 0)
+ return 0;
+ int weight = 0;
+ for (int i = 0; i < value.bitLength; ++i) {
+ if (value & (1 << i) != 0)
+ ++weight;
+ }
+ return weight;
+}
+
+class PointerState {
+ PointerState({ this.result, this.lastPosition });
+ HitTestResult result;
+ Point lastPosition;
+}
+
+typedef void EventListener(sky.Event event);
+
+class SkyBinding {
+
+ SkyBinding({ RenderBox root: null, RenderView renderViewOverride }) {
+ assert(_instance == null);
+ _instance = this;
+
+ sky.view.setEventCallback(_handleEvent);
+
+ sky.view.setMetricsChangedCallback(_handleMetricsChanged);
+ scheduler.init();
+ if (renderViewOverride == null) {
+ _renderView = new RenderView(child: root);
+ _renderView.attach();
+ _renderView.rootConstraints = _createConstraints();
+ _renderView.scheduleInitialLayout();
+ } else {
+ _renderView = renderViewOverride;
+ }
+ assert(_renderView != null);
+ scheduler.addPersistentFrameCallback(_beginFrame);
+
+ assert(_instance == this);
+ }
+
+ static SkyBinding _instance; // used to enforce that we're a singleton
+ static SkyBinding get instance => _instance;
+
+ RenderView _renderView;
+ RenderView get renderView => _renderView;
+
+ ViewConstraints _createConstraints() {
+ return new ViewConstraints(size: new Size(sky.view.width, sky.view.height));
+ }
+ void _handleMetricsChanged() {
+ _renderView.rootConstraints = _createConstraints();
+ }
+
+ RenderBox get root => _renderView.child;
+ void set root(RenderBox value) {
+ _renderView.child = value;
+ }
+ void _beginFrame(double timeStamp) {
+ RenderObject.flushLayout();
+ RenderObject.flushPaint();
+ _renderView.paintFrame();
+ }
+
+ final List<EventListener> _eventListeners = new List<EventListener>();
+ void addEventListener(EventListener e) => _eventListeners.add(e);
+ bool removeEventListener(EventListener e) => _eventListeners.remove(e);
+
+ void _handleEvent(sky.Event event) {
+ if (event is sky.PointerEvent) {
+ _handlePointerEvent(event);
+ } else if (event is sky.GestureEvent) {
+ HitTestResult result = new HitTestResult();
+ _renderView.hitTest(result, position: new Point(event.x, event.y));
+ dispatchEvent(event, result);
+ } else {
+ for (EventListener e in _eventListeners)
+ e(event);
+ }
+ }
+
+ Map<int, PointerState> _stateForPointer = new Map<int, PointerState>();
+
+ PointerState _createStateForPointer(sky.PointerEvent event, Point position) {
+ HitTestResult result = new HitTestResult();
+ _renderView.hitTest(result, position: position);
+ PointerState state = new PointerState(result: result, lastPosition: position);
+ _stateForPointer[event.pointer] = state;
+ return state;
+ }
+
+ void _handlePointerEvent(sky.PointerEvent event) {
+ Point position = new Point(event.x, event.y);
+
+ PointerState state;
+ switch(event.type) {
+ case 'pointerdown':
+ state = _createStateForPointer(event, position);
+ break;
+ case 'pointerup':
+ case 'pointercancel':
+ state = _stateForPointer[event.pointer];
+ if (_hammingWeight(event.buttons) <= 1)
+ _stateForPointer.remove(event.pointer);
+ break;
+ case 'pointermove':
+ state = _stateForPointer[event.pointer];
+ // In the case of mouse hover we won't already have a cached down.
+ if (state == null)
+ state = _createStateForPointer(event, position);
+ break;
+ }
+ event.dx = position.x - state.lastPosition.x;
+ event.dy = position.y - state.lastPosition.y;
+ state.lastPosition = position;
+
+ dispatchEvent(event, state.result);
+ }
+
+ void dispatchEvent(sky.Event event, HitTestResult result) {
+ assert(result != null);
+ for (HitTestEntry entry in result.path.reversed)
+ entry.target.handleEvent(event, entry);
+ }
+
+ String toString() => 'Render Tree:\n${_renderView}';
+
+ void debugDumpRenderTree() {
+ toString().split('\n').forEach(print);
+ }
+
+}
diff --git a/packages/flutter/lib/rendering/stack.dart b/packages/flutter/lib/rendering/stack.dart
new file mode 100644
index 0000000..4ac2515
--- /dev/null
+++ b/packages/flutter/lib/rendering/stack.dart
@@ -0,0 +1,201 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+
+class StackParentData extends BoxParentData with ContainerParentDataMixin<RenderBox> {
+ double top;
+ double right;
+ double bottom;
+ double left;
+
+ void merge(StackParentData other) {
+ if (other.top != null)
+ top = other.top;
+ if (other.right != null)
+ right = other.right;
+ if (other.bottom != null)
+ bottom = other.bottom;
+ if (other.left != null)
+ left = other.left;
+ super.merge(other);
+ }
+
+ bool get isPositioned => top != null || right != null || bottom != null || left != null;
+
+ String toString() => '${super.toString()}; top=$top; right=$right; bottom=$bottom, left=$left';
+}
+
+class RenderStack extends RenderBox with ContainerRenderObjectMixin<RenderBox, StackParentData>,
+ RenderBoxContainerDefaultsMixin<RenderBox, StackParentData> {
+ RenderStack({
+ List<RenderBox> children
+ }) {
+ addAll(children);
+ }
+
+ void setupParentData(RenderBox child) {
+ if (child.parentData is! StackParentData)
+ child.parentData = new StackParentData();
+ }
+
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ double width = constraints.minWidth;
+ RenderBox child = firstChild;
+ while (child != null) {
+ assert(child.parentData is StackParentData);
+ if (!child.parentData.isPositioned)
+ width = math.max(width, child.getMinIntrinsicWidth(constraints));
+ child = child.parentData.nextSibling;
+ }
+ assert(width == constraints.constrainWidth(width));
+ return width;
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ bool hasNonPositionedChildren = false;
+ double width = constraints.minWidth;
+ RenderBox child = firstChild;
+ while (child != null) {
+ assert(child.parentData is StackParentData);
+ if (!child.parentData.isPositioned) {
+ hasNonPositionedChildren = true;
+ width = math.max(width, child.getMaxIntrinsicWidth(constraints));
+ }
+ child = child.parentData.nextSibling;
+ }
+ if (!hasNonPositionedChildren)
+ return constraints.constrainWidth();
+ assert(width == constraints.constrainWidth(width));
+ return width;
+ }
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) {
+ double height = constraints.minHeight;
+ RenderBox child = firstChild;
+ while (child != null) {
+ assert(child.parentData is StackParentData);
+ if (!child.parentData.isPositioned)
+ height = math.max(height, child.getMinIntrinsicHeight(constraints));
+ child = child.parentData.nextSibling;
+ }
+ assert(height == constraints.constrainHeight(height));
+ return height;
+ }
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) {
+ bool hasNonPositionedChildren = false;
+ double height = constraints.minHeight;
+ RenderBox child = firstChild;
+ while (child != null) {
+ assert(child.parentData is StackParentData);
+ if (!child.parentData.isPositioned) {
+ hasNonPositionedChildren = true;
+ height = math.max(height, child.getMaxIntrinsicHeight(constraints));
+ }
+ child = child.parentData.nextSibling;
+ }
+ if (!hasNonPositionedChildren)
+ return constraints.constrainHeight();
+ assert(height == constraints.constrainHeight(height));
+ return height;
+ }
+
+ double computeDistanceToActualBaseline(TextBaseline baseline) {
+ return defaultComputeDistanceToHighestActualBaseline(baseline);
+ }
+
+ void performLayout() {
+ bool hasNonPositionedChildren = false;
+
+ double width = 0.0;
+ double height = 0.0;
+
+ RenderBox child = firstChild;
+ while (child != null) {
+ assert(child.parentData is StackParentData);
+ final StackParentData parentData = child.parentData;
+
+ if (!parentData.isPositioned) {
+ hasNonPositionedChildren = true;
+
+ child.layout(constraints, parentUsesSize: true);
+ parentData.position = Point.origin;
+
+ final Size childSize = child.size;
+ width = math.max(width, childSize.width);
+ height = math.max(height, childSize.height);
+ }
+
+ child = parentData.nextSibling;
+ }
+
+ if (hasNonPositionedChildren)
+ size = new Size(width, height);
+ else
+ size = constraints.biggest;
+
+ assert(!size.isInfinite);
+ assert(size.width == constraints.constrainWidth(width));
+ assert(size.height == constraints.constrainHeight(height));
+
+ BoxConstraints innerConstraints = new BoxConstraints.loose(size);
+
+ child = firstChild;
+ while (child != null) {
+ assert(child.parentData is StackParentData);
+ final StackParentData childData = child.parentData;
+
+ if (childData.isPositioned) {
+ BoxConstraints childConstraints = innerConstraints;
+
+ if (childData.left != null && childData.right != null)
+ childConstraints = childConstraints.applyWidth(childData.right - childData.left);
+ else if (childData.left != null)
+ childConstraints = childConstraints.applyMaxWidth(size.width - childData.left);
+ else if (childData.right != null)
+ childConstraints = childConstraints.applyMaxWidth(size.width - childData.right);
+
+ if (childData.top != null && childData.bottom != null)
+ childConstraints = childConstraints.applyHeight(childData.bottom - childData.top);
+ else if (childData.top != null)
+ childConstraints = childConstraints.applyMaxHeight(size.height - childData.top);
+ else if (childData.bottom != null)
+ childConstraints = childConstraints.applyMaxHeight(size.width - childData.bottom);
+
+ child.layout(childConstraints, parentUsesSize: true);
+
+ double x = 0.0;
+ if (childData.left != null)
+ x = childData.left;
+ else if (childData.right != null)
+ x = size.width - childData.right - child.size.width;
+ assert(x >= 0.0 && x + child.size.width <= size.width);
+
+ double y = 0.0;
+ if (childData.top != null)
+ y = childData.top;
+ else if (childData.bottom != null)
+ y = size.height - childData.bottom - child.size.height;
+ assert(y >= 0.0 && y + child.size.height <= size.height);
+
+ childData.position = new Point(x, y);
+ }
+
+ child = childData.nextSibling;
+ }
+ }
+
+ void hitTestChildren(HitTestResult result, { Point position }) {
+ defaultHitTestChildren(result, position: position);
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ defaultPaint(canvas, offset);
+ }
+}
diff --git a/packages/flutter/lib/sky_tool b/packages/flutter/lib/sky_tool
new file mode 100755
index 0000000..e57159c
--- /dev/null
+++ b/packages/flutter/lib/sky_tool
@@ -0,0 +1,317 @@
+#!/usr/bin/env python
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import argparse
+import json
+import logging
+import os
+import re
+import signal
+import socket
+import subprocess
+import sys
+import urlparse
+import time
+
+# TODO(eseidel): This should be BIN_DIR.
+LIB_DIR = os.path.realpath(os.path.dirname(os.path.abspath(__file__)))
+SKY_PACKAGE_ROOT = os.path.realpath(os.path.dirname(LIB_DIR))
+
+SKY_SERVER_PORT = 9888
+OBSERVATORY_PORT = 8181
+APK_NAME = 'SkyDemo.apk'
+ANDROID_PACKAGE = "org.domokit.sky.demo"
+# FIXME: This assumes adb is in $PATH, we could look for ANDROID_HOME, etc?
+ADB_PATH = 'adb'
+# FIXME: Do we need to look in $DART_SDK?
+DART_PATH = 'dart'
+
+PID_FILE_PATH = "/tmp/sky_tool.pids"
+PID_FILE_KEYS = frozenset([
+ 'remote_sky_server_port',
+ 'sky_server_pid',
+ 'sky_server_port',
+ 'sky_server_root',
+ 'build_dir',
+])
+
+
+def _port_in_use(port):
+ sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+ return sock.connect_ex(('localhost', port)) == 0
+
+
+# We need something to serve dart files, python's httpserver is sufficient.
+def _start_http_server(port, root):
+ server_command = [
+ 'python', '-m', 'SimpleHTTPServer', str(port),
+ ]
+ return subprocess.Popen(server_command, cwd=root).pid
+
+
+# This 'strict dictionary' approach is useful for catching typos.
+class Pids(object):
+ def __init__(self, known_keys, contents=None):
+ self._known_keys = known_keys
+ self._dict = contents if contents is not None else {}
+
+ def __len__(self):
+ return len(self._dict)
+
+ def get(self, key, default=None):
+ assert key in self._known_keys, '%s not in known_keys' % key
+ return self._dict.get(key, default)
+
+ def __getitem__(self, key):
+ assert key in self._known_keys, '%s not in known_keys' % key
+ return self._dict[key]
+
+ def __setitem__(self, key, value):
+ assert key in self._known_keys, '%s not in known_keys' % key
+ self._dict[key] = value
+
+ def __delitem__(self, key):
+ assert key in self._known_keys, '%s not in known_keys' % key
+ del self._dict[key]
+
+ def __iter__(self):
+ return iter(self._dict)
+
+ def __contains__(self, key):
+ assert key in self._known_keys, '%s not in allowed_keys' % key
+ return key in self._dict
+
+ def clear(self):
+ self._dict = {}
+
+ def pop(self, key, default=None):
+ assert key in self._known_keys, '%s not in known_keys' % key
+ return self._dict.pop(key, default)
+
+ @classmethod
+ def read_from(cls, path, known_keys):
+ contents = {}
+ try:
+ with open(path, 'r') as pid_file:
+ contents = json.load(pid_file)
+ except:
+ if os.path.exists(path):
+ logging.warn('Failed to read pid file: %s' % path)
+ return cls(known_keys, contents)
+
+ def write_to(self, path):
+ try:
+ with open(path, 'w') as pid_file:
+ json.dump(self._dict, pid_file, indent=2, sort_keys=True)
+ except:
+ logging.warn('Failed to write pid file: %s' % path)
+
+
+def _url_for_path(port, root, path):
+ relative_path = os.path.relpath(path, root)
+ return 'sky://localhost:%s/%s' % (port, relative_path)
+
+
+class StartSky(object):
+ def add_subparser(self, subparsers):
+ start_parser = subparsers.add_parser('start',
+ help='launch %s on the device' % APK_NAME)
+ start_parser.add_argument('--install', action='store_true')
+ start_parser.add_argument('project_or_path', nargs='?', type=str,
+ default='.')
+ start_parser.set_defaults(func=self.run)
+
+ def _is_package_installed(self, package_name):
+ pm_path_cmd = [ADB_PATH, 'shell', 'pm', 'path', package_name]
+ return subprocess.check_output(pm_path_cmd).strip() != ''
+
+ def run(self, args, pids):
+ StopSky().run(args, pids)
+
+ project_or_path = os.path.abspath(args.project_or_path)
+
+ if os.path.isdir(project_or_path):
+ sky_server_root = project_or_path
+ main_dart = os.path.join(project_or_path, 'lib', 'main.dart')
+ missing_msg = "Missing lib/main.dart in project: %s" % project_or_path
+ else:
+ # FIXME: This assumes the path is at the root of the project!
+ # Instead we should walk up looking for a pubspec.yaml
+ sky_server_root = os.path.dirname(project_or_path)
+ main_dart = project_or_path
+ missing_msg = "%s does not exist." % main_dart
+
+ if not os.path.isfile(main_dart):
+ print missing_msg
+ return 2
+
+ package_root = os.path.join(sky_server_root, 'packages')
+ if not os.path.isdir(package_root):
+ print "%s is not a valid packages path." % package_root
+ return 2
+
+ subprocess.check_call([
+ DART_PATH,
+ '--package-root=%s' % package_root,
+ 'packages/mojom/generate.dart'
+ ])
+
+ if not self._is_package_installed(ANDROID_PACKAGE):
+ print '%s is not installed, installing.' % APK_NAME
+ args.install = True
+
+ if args.install:
+ apk_path = os.path.join(SKY_PACKAGE_ROOT, 'apks', APK_NAME)
+ if not os.path.exists(apk_path):
+ print "'%s' does not exist?" % apk_path
+ return 2
+
+ subprocess.check_call([ADB_PATH, 'install', '-r', apk_path])
+
+ # Set up port forwarding for observatory
+ observatory_port_string = 'tcp:%s' % OBSERVATORY_PORT
+ subprocess.check_call([
+ ADB_PATH, 'forward', observatory_port_string, observatory_port_string
+ ])
+
+ sky_server_port = SKY_SERVER_PORT
+ pids['sky_server_port'] = sky_server_port
+ if _port_in_use(sky_server_port):
+ logging.warn(('Port %s already in use. '
+ ' Not starting server for %s') % (sky_server_port, sky_server_root))
+ else:
+ sky_server_pid = _start_http_server(sky_server_port, sky_server_root)
+ pids['sky_server_pid'] = sky_server_pid
+ pids['sky_server_root'] = sky_server_root
+
+ port_string = 'tcp:%s' % sky_server_port
+ subprocess.check_call([
+ ADB_PATH, 'reverse', port_string, port_string
+ ])
+ pids['remote_sky_server_port'] = sky_server_port
+
+ # The load happens on the remote device, use the remote port.
+ sky_url = _url_for_path(pids['remote_sky_server_port'], sky_server_root,
+ main_dart)
+
+ subprocess.check_call([ADB_PATH, 'shell',
+ 'am', 'start',
+ '-a', 'android.intent.action.VIEW',
+ '-d', sky_url])
+
+
+class StopSky(object):
+ def add_subparser(self, subparsers):
+ stop_parser = subparsers.add_parser('stop',
+ help=('kill all running SkyShell.apk processes'))
+ stop_parser.set_defaults(func=self.run)
+
+ def _kill_if_exists(self, pids, key, name):
+ pid = pids.pop(key, None)
+ if not pid:
+ logging.info('No pid for %s, nothing to do.' % name)
+ return
+ logging.info('Killing %s (%d).' % (name, pid))
+ try:
+ os.kill(pid, signal.SIGTERM)
+ except OSError:
+ logging.info('%s (%d) already gone.' % (name, pid))
+
+ def run(self, args, pids):
+ self._kill_if_exists(pids, 'sky_server_pid', 'sky_server')
+
+ if 'remote_sky_server_port' in pids:
+ port_string = 'tcp:%s' % pids['remote_sky_server_port']
+ subprocess.call([ADB_PATH, 'reverse', '--remove', port_string])
+
+ subprocess.call([
+ ADB_PATH, 'shell', 'am', 'force-stop', ANDROID_PACKAGE])
+
+ pids.clear()
+
+
+class StartTracing(object):
+ def add_subparser(self, subparsers):
+ start_tracing_parser = subparsers.add_parser('start_tracing',
+ help=('start tracing a running sky instance'))
+ start_tracing_parser.set_defaults(func=self.run)
+
+ def run(self, args, pids):
+ subprocess.check_output([ADB_PATH, 'shell',
+ 'am', 'broadcast',
+ '-a', 'org.domokit.sky.demo.TRACING_START'])
+
+
+TRACE_COMPLETE_REGEXP = re.compile('Trace complete')
+TRACE_FILE_REGEXP = re.compile(r'Saving trace to (?P<path>\S+)')
+
+
+class StopTracing(object):
+ def add_subparser(self, subparsers):
+ stop_tracing_parser = subparsers.add_parser('stop_tracing',
+ help=('stop tracing a running sky instance'))
+ stop_tracing_parser.set_defaults(func=self.run)
+
+ def run(self, args, pids):
+ subprocess.check_output([ADB_PATH, 'logcat', '-c'])
+ subprocess.check_output([ADB_PATH, 'shell',
+ 'am', 'broadcast',
+ '-a', 'org.domokit.sky.demo.TRACING_STOP'])
+ device_path = None
+ is_complete = False
+ while not is_complete:
+ time.sleep(0.2)
+ log = subprocess.check_output([ADB_PATH, 'logcat', '-d'])
+ if device_path is None:
+ result = TRACE_FILE_REGEXP.search(log)
+ if result:
+ device_path = result.group('path')
+ is_complete = TRACE_COMPLETE_REGEXP.search(log) is not None
+
+ print 'Downloading trace %s ...' % os.path.basename(device_path)
+
+ if device_path:
+ subprocess.check_output([ADB_PATH, 'pull', device_path])
+ subprocess.check_output([ADB_PATH, 'shell', 'rm', device_path])
+
+
+class SkyShellRunner(object):
+ def _check_for_adb(self):
+ try:
+ subprocess.check_output([ADB_PATH, 'devices'])
+ except OSError:
+ print "'adb' (from the Android SDK) not in $PATH, can't continue."
+ return False
+ return True
+
+ def _check_for_dart(self):
+ try:
+ subprocess.check_output([DART_PATH, '--version'])
+ except OSError:
+ print "'dart' (from the Dart SDK) not in $PATH, can't continue."
+ return False
+ return True
+
+ def main(self):
+ logging.basicConfig(level=logging.WARNING)
+ if not self._check_for_adb() or not self._check_for_dart():
+ sys.exit(2)
+
+ parser = argparse.ArgumentParser(description='Sky Demo Runner')
+ subparsers = parser.add_subparsers(help='sub-command help')
+
+ for command in [StartSky(), StopSky(), StartTracing(), StopTracing()]:
+ command.add_subparser(subparsers)
+
+ args = parser.parse_args()
+ pids = Pids.read_from(PID_FILE_PATH, PID_FILE_KEYS)
+ exit_code = args.func(args, pids)
+ # We could do this with an at-exit handler instead?
+ pids.write_to(PID_FILE_PATH)
+ sys.exit(exit_code)
+
+
+if __name__ == '__main__':
+ SkyShellRunner().main()
diff --git a/packages/flutter/lib/theme/colors.dart b/packages/flutter/lib/theme/colors.dart
new file mode 100644
index 0000000..344a660
--- /dev/null
+++ b/packages/flutter/lib/theme/colors.dart
@@ -0,0 +1,373 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' show Color;
+
+/// [Color] constants which represent Material design's
+/// [color palette](http://www.google.com/design/spec/style/color.html).
+
+const white = const Color(0xFFFFFFFF);
+const black = const Color(0xFF000000);
+const transparent = const Color(0x00000000);
+
+const Map<int, Color> Red = const {
+ 50: const Color(0xFFFFEBEE),
+ 100: const Color(0xFFFFCDD2),
+ 200: const Color(0xFFEF9A9A),
+ 300: const Color(0xFFE57373),
+ 400: const Color(0xFFEF5350),
+ 500: const Color(0xFFF44336),
+ 600: const Color(0xFFE53935),
+ 700: const Color(0xFFD32F2F),
+ 800: const Color(0xFFC62828),
+ 900: const Color(0xFFB71C1C),
+};
+
+const Map<int, Color> RedAccent = const {
+ 100: const Color(0xFFFF8A80),
+ 200: const Color(0xFFFF5252),
+ 400: const Color(0xFFFF1744),
+ 700: const Color(0xFFD50000),
+};
+
+const Map<int, Color> Pink = const {
+ 50: const Color(0xFFFCE4EC),
+ 100: const Color(0xFFF8BBD0),
+ 200: const Color(0xFFF48FB1),
+ 300: const Color(0xFFF06292),
+ 400: const Color(0xFFEC407A),
+ 500: const Color(0xFFE91E63),
+ 600: const Color(0xFFD81B60),
+ 700: const Color(0xFFC2185B),
+ 800: const Color(0xFFAD1457),
+ 900: const Color(0xFF880E4F),
+};
+
+const Map<int, Color> PinkAccent = const {
+ 100: const Color(0xFFFF80AB),
+ 200: const Color(0xFFFF4081),
+ 400: const Color(0xFFF50057),
+ 700: const Color(0xFFC51162),
+};
+
+const Map<int, Color> Purple = const {
+ 50: const Color(0xFFF3E5F5),
+ 100: const Color(0xFFE1BEE7),
+ 200: const Color(0xFFCE93D8),
+ 300: const Color(0xFFBA68C8),
+ 400: const Color(0xFFAB47BC),
+ 500: const Color(0xFF9C27B0),
+ 600: const Color(0xFF8E24AA),
+ 700: const Color(0xFF7B1FA2),
+ 800: const Color(0xFF6A1B9A),
+ 900: const Color(0xFF4A148C),
+};
+
+const Map<int, Color> PurpleAccent = const {
+ 100: const Color(0xFFEA80FC),
+ 200: const Color(0xFFE040FB),
+ 400: const Color(0xFFD500F9),
+ 700: const Color(0xFFAA00FF),
+};
+
+const Map<int, Color> DeepPurple = const {
+ 50: const Color(0xFFEDE7F6),
+ 100: const Color(0xFFD1C4E9),
+ 200: const Color(0xFFB39DDB),
+ 300: const Color(0xFF9575CD),
+ 400: const Color(0xFF7E57C2),
+ 500: const Color(0xFF673AB7),
+ 600: const Color(0xFF5E35B1),
+ 700: const Color(0xFF512DA8),
+ 800: const Color(0xFF4527A0),
+ 900: const Color(0xFF311B92),
+};
+
+const Map<int, Color> DeepPurpleAccent = const {
+ 100: const Color(0xFFB388FF),
+ 200: const Color(0xFF7C4DFF),
+ 400: const Color(0xFF651FFF),
+ 700: const Color(0xFF6200EA),
+};
+
+const Map<int, Color> Indigo = const {
+ 50: const Color(0xFFE8EAF6),
+ 100: const Color(0xFFC5CAE9),
+ 200: const Color(0xFF9FA8DA),
+ 300: const Color(0xFF7986CB),
+ 400: const Color(0xFF5C6BC0),
+ 500: const Color(0xFF3F51B5),
+ 600: const Color(0xFF3949AB),
+ 700: const Color(0xFF303F9F),
+ 800: const Color(0xFF283593),
+ 900: const Color(0xFF1A237E),
+};
+
+const Map<int, Color> IndigoAccent = const {
+ 100: const Color(0xFF8C9EFF),
+ 200: const Color(0xFF536DFE),
+ 400: const Color(0xFF3D5AFE),
+ 700: const Color(0xFF304FFE),
+};
+
+const Map<int, Color> Blue = const {
+ 50: const Color(0xFFE3F2FD),
+ 100: const Color(0xFFBBDEFB),
+ 200: const Color(0xFF90CAF9),
+ 300: const Color(0xFF64B5F6),
+ 400: const Color(0xFF42A5F5),
+ 500: const Color(0xFF2196F3),
+ 600: const Color(0xFF1E88E5),
+ 700: const Color(0xFF1976D2),
+ 800: const Color(0xFF1565C0),
+ 900: const Color(0xFF0D47A1),
+};
+
+const Map<int, Color> BlueAccent = const {
+ 100: const Color(0xFF82B1FF),
+ 200: const Color(0xFF448AFF),
+ 400: const Color(0xFF2979FF),
+ 700: const Color(0xFF2962FF),
+};
+
+const Map<int, Color> LightBlue = const {
+ 50: const Color(0xFFE1F5FE),
+ 100: const Color(0xFFB3E5FC),
+ 200: const Color(0xFF81D4FA),
+ 300: const Color(0xFF4FC3F7),
+ 400: const Color(0xFF29B6F6),
+ 500: const Color(0xFF03A9F4),
+ 600: const Color(0xFF039BE5),
+ 700: const Color(0xFF0288D1),
+ 800: const Color(0xFF0277BD),
+ 900: const Color(0xFF01579B),
+};
+
+const Map<int, Color> LightBlueAccent = const {
+ 100: const Color(0xFF80D8FF),
+ 200: const Color(0xFF40C4FF),
+ 400: const Color(0xFF00B0FF),
+ 700: const Color(0xFF0091EA),
+};
+
+const Map<int, Color> Cyan = const {
+ 50: const Color(0xFFE0F7FA),
+ 100: const Color(0xFFB2EBF2),
+ 200: const Color(0xFF80DEEA),
+ 300: const Color(0xFF4DD0E1),
+ 400: const Color(0xFF26C6DA),
+ 500: const Color(0xFF00BCD4),
+ 600: const Color(0xFF00ACC1),
+ 700: const Color(0xFF0097A7),
+ 800: const Color(0xFF00838F),
+ 900: const Color(0xFF006064),
+};
+
+const Map<int, Color> CyanAccent = const {
+ 100: const Color(0xFF84FFFF),
+ 200: const Color(0xFF18FFFF),
+ 400: const Color(0xFF00E5FF),
+ 700: const Color(0xFF00B8D4),
+};
+
+const Map<int, Color> Teal = const {
+ 50: const Color(0xFFE0F2F1),
+ 100: const Color(0xFFB2DFDB),
+ 200: const Color(0xFF80CBC4),
+ 300: const Color(0xFF4DB6AC),
+ 400: const Color(0xFF26A69A),
+ 500: const Color(0xFF009688),
+ 600: const Color(0xFF00897B),
+ 700: const Color(0xFF00796B),
+ 800: const Color(0xFF00695C),
+ 900: const Color(0xFF004D40),
+};
+
+const Map<int, Color> TealAccent = const {
+ 100: const Color(0xFFA7FFEB),
+ 200: const Color(0xFF64FFDA),
+ 400: const Color(0xFF1DE9B6),
+ 700: const Color(0xFF00BFA5),
+};
+
+const Map<int, Color> Green = const {
+ 50: const Color(0xFFE8F5E9),
+ 100: const Color(0xFFC8E6C9),
+ 200: const Color(0xFFA5D6A7),
+ 300: const Color(0xFF81C784),
+ 400: const Color(0xFF66BB6A),
+ 500: const Color(0xFF4CAF50),
+ 600: const Color(0xFF43A047),
+ 700: const Color(0xFF388E3C),
+ 800: const Color(0xFF2E7D32),
+ 900: const Color(0xFF1B5E20),
+};
+
+const Map<int, Color> GreenAccent = const {
+ 100: const Color(0xFFB9F6CA),
+ 200: const Color(0xFF69F0AE),
+ 400: const Color(0xFF00E676),
+ 700: const Color(0xFF00C853),
+};
+
+const Map<int, Color> LightGreen = const {
+ 50: const Color(0xFFF1F8E9),
+ 100: const Color(0xFFDCEDC8),
+ 200: const Color(0xFFC5E1A5),
+ 300: const Color(0xFFAED581),
+ 400: const Color(0xFF9CCC65),
+ 500: const Color(0xFF8BC34A),
+ 600: const Color(0xFF7CB342),
+ 700: const Color(0xFF689F38),
+ 800: const Color(0xFF558B2F),
+ 900: const Color(0xFF33691E),
+};
+
+const Map<int, Color> LightGreenAccent = const {
+ 100: const Color(0xFFCCFF90),
+ 200: const Color(0xFFB2FF59),
+ 400: const Color(0xFF76FF03),
+ 700: const Color(0xFF64DD17),
+};
+
+const Map<int, Color> Lime = const {
+ 50: const Color(0xFFF9FBE7),
+ 100: const Color(0xFFF0F4C3),
+ 200: const Color(0xFFE6EE9C),
+ 300: const Color(0xFFDCE775),
+ 400: const Color(0xFFD4E157),
+ 500: const Color(0xFFCDDC39),
+ 600: const Color(0xFFC0CA33),
+ 700: const Color(0xFFAFB42B),
+ 800: const Color(0xFF9E9D24),
+ 900: const Color(0xFF827717),
+};
+
+const Map<int, Color> LimeAccent = const {
+ 100: const Color(0xFFF4FF81),
+ 200: const Color(0xFFEEFF41),
+ 400: const Color(0xFFC6FF00),
+ 700: const Color(0xFFAEEA00),
+};
+
+const Map<int, Color> Yellow = const {
+ 50: const Color(0xFFFFFDE7),
+ 100: const Color(0xFFFFF9C4),
+ 200: const Color(0xFFFFF59D),
+ 300: const Color(0xFFFFF176),
+ 400: const Color(0xFFFFEE58),
+ 500: const Color(0xFFFFEB3B),
+ 600: const Color(0xFFFDD835),
+ 700: const Color(0xFFFBC02D),
+ 800: const Color(0xFFF9A825),
+ 900: const Color(0xFFF57F17),
+};
+
+const Map<int, Color> YellowAccent = const {
+ 100: const Color(0xFFFFFF8D),
+ 200: const Color(0xFFFFFF00),
+ 400: const Color(0xFFFFEA00),
+ 700: const Color(0xFFFFD600),
+};
+
+const Map<int, Color> Amber = const {
+ 50: const Color(0xFFFFF8E1),
+ 100: const Color(0xFFFFECB3),
+ 200: const Color(0xFFFFE082),
+ 300: const Color(0xFFFFD54F),
+ 400: const Color(0xFFFFCA28),
+ 500: const Color(0xFFFFC107),
+ 600: const Color(0xFFFFB300),
+ 700: const Color(0xFFFFA000),
+ 800: const Color(0xFFFF8F00),
+ 900: const Color(0xFFFF6F00),
+};
+
+const Map<int, Color> AmberAccent = const {
+ 100: const Color(0xFFFFE57F),
+ 200: const Color(0xFFFFD740),
+ 400: const Color(0xFFFFC400),
+ 700: const Color(0xFFFFAB00),
+};
+
+const Map<int, Color> Orange = const {
+ 50: const Color(0xFFFFF3E0),
+ 100: const Color(0xFFFFE0B2),
+ 200: const Color(0xFFFFCC80),
+ 300: const Color(0xFFFFB74D),
+ 400: const Color(0xFFFFA726),
+ 500: const Color(0xFFFF9800),
+ 600: const Color(0xFFFB8C00),
+ 700: const Color(0xFFF57C00),
+ 800: const Color(0xFFEF6C00),
+ 900: const Color(0xFFE65100),
+};
+
+const Map<int, Color> OrangeAccent = const {
+ 100: const Color(0xFFFFD180),
+ 200: const Color(0xFFFFAB40),
+ 400: const Color(0xFFFF9100),
+ 700: const Color(0xFFFF6D00),
+};
+
+const Map<int, Color> DeepOrange = const {
+ 50: const Color(0xFFFBE9E7),
+ 100: const Color(0xFFFFCCBC),
+ 200: const Color(0xFFFFAB91),
+ 300: const Color(0xFFFF8A65),
+ 400: const Color(0xFFFF7043),
+ 500: const Color(0xFFFF5722),
+ 600: const Color(0xFFF4511E),
+ 700: const Color(0xFFE64A19),
+ 800: const Color(0xFFD84315),
+ 900: const Color(0xFFBF360C),
+};
+
+const Map<int, Color> DeepOrangeAccent = const {
+ 100: const Color(0xFFFF9E80),
+ 200: const Color(0xFFFF6E40),
+ 400: const Color(0xFFFF3D00),
+ 700: const Color(0xFFDD2C00),
+};
+
+const Map<int, Color> Brown = const {
+ 50: const Color(0xFFEFEBE9),
+ 100: const Color(0xFFD7CCC8),
+ 200: const Color(0xFFBCAAA4),
+ 300: const Color(0xFFA1887F),
+ 400: const Color(0xFF8D6E63),
+ 500: const Color(0xFF795548),
+ 600: const Color(0xFF6D4C41),
+ 700: const Color(0xFF5D4037),
+ 800: const Color(0xFF4E342E),
+ 900: const Color(0xFF3E2723),
+};
+
+const Map<int, Color> Grey = const {
+ 50: const Color(0xFFFAFAFA),
+ 100: const Color(0xFFF5F5F5),
+ 200: const Color(0xFFEEEEEE),
+ 300: const Color(0xFFE0E0E0),
+ 350: const Color(0xFFD6D6D6), // only for raised button while pressed or disabled
+ 400: const Color(0xFFBDBDBD),
+ 500: const Color(0xFF9E9E9E),
+ 600: const Color(0xFF757575),
+ 700: const Color(0xFF616161),
+ 800: const Color(0xFF424242),
+ 850: const Color(0xFF303030), // only for background color in Dark theme
+ 900: const Color(0xFF212121),
+};
+
+const Map<int, Color> BlueGrey = const {
+ 50: const Color(0xFFECEFF1),
+ 100: const Color(0xFFCFD8DC),
+ 200: const Color(0xFFB0BEC5),
+ 300: const Color(0xFF90A4AE),
+ 400: const Color(0xFF78909C),
+ 500: const Color(0xFF607D8B),
+ 600: const Color(0xFF546E7A),
+ 700: const Color(0xFF455A64),
+ 800: const Color(0xFF37474F),
+ 900: const Color(0xFF263238),
+};
diff --git a/packages/flutter/lib/theme/edges.dart b/packages/flutter/lib/theme/edges.dart
new file mode 100644
index 0000000..4da5d9b
--- /dev/null
+++ b/packages/flutter/lib/theme/edges.dart
@@ -0,0 +1,11 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+enum MaterialEdge { canvas, card, circle }
+
+const Map<MaterialEdge, double> edges = const {
+ MaterialEdge.canvas: null,
+ MaterialEdge.card: 2.0,
+ MaterialEdge.circle: null,
+};
diff --git a/packages/flutter/lib/theme/shadows.dart b/packages/flutter/lib/theme/shadows.dart
new file mode 100644
index 0000000..29ac20e
--- /dev/null
+++ b/packages/flutter/lib/theme/shadows.dart
@@ -0,0 +1,60 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' show Color, Offset;
+
+import 'package:sky/painting/box_painter.dart';
+
+const Map<int, List<BoxShadow>> shadows = const {
+ 1: const [
+ const BoxShadow(
+ color: const Color(0x1F000000),
+ offset: const Offset(0.0, 1.0),
+ blur: 3.0),
+ const BoxShadow(
+ color: const Color(0x3D000000),
+ offset: const Offset(0.0, 1.0),
+ blur: 2.0),
+ ],
+ 2: const [
+ const BoxShadow(
+ color: const Color(0x29000000),
+ offset: const Offset(0.0, 3.0),
+ blur: 6.0),
+ const BoxShadow(
+ color: const Color(0x3B000000),
+ offset: const Offset(0.0, 3.0),
+ blur: 6.0),
+ ],
+ 3: const [
+ const BoxShadow(
+ color: const Color(0x30000000),
+ offset: const Offset(0.0, 10.0),
+ blur: 20.0),
+ const BoxShadow(
+ color: const Color(0x3B000000),
+ offset: const Offset(0.0, 6.0),
+ blur: 6.0),
+ ],
+ 4: const [
+ const BoxShadow(
+ color: const Color(0x40000000),
+ offset: const Offset(0.0, 14.0),
+ blur: 28.0),
+ const BoxShadow(
+ color: const Color(0x38000000),
+ offset: const Offset(0.0, 10.0),
+ blur: 10.0),
+ ],
+ 5: const [
+ const BoxShadow(
+ color: const Color(0x4E000000),
+ offset: const Offset(0.0, 19.0),
+ blur: 28.0),
+ const BoxShadow(
+ color: const Color(0x38000000),
+ offset: const Offset(0.0, 15.0),
+ blur: 12.0),
+ ],
+};
diff --git a/packages/flutter/lib/theme/theme_data.dart b/packages/flutter/lib/theme/theme_data.dart
new file mode 100644
index 0000000..46a1a6b
--- /dev/null
+++ b/packages/flutter/lib/theme/theme_data.dart
@@ -0,0 +1,75 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky';
+
+import 'package:sky/theme/typography.dart' as typography;
+import 'package:sky/theme/colors.dart' as colors;
+
+enum ThemeBrightness { dark, light }
+
+class ThemeData {
+
+ ThemeData({
+ ThemeBrightness brightness,
+ Map<int, Color> primarySwatch,
+ Color accentColor,
+ this.accentColorBrightness: ThemeBrightness.dark,
+ typography.TextTheme text })
+ : this.brightness = brightness,
+ this.primarySwatch = primarySwatch,
+ primaryColorBrightness = primarySwatch == null ? brightness : ThemeBrightness.dark,
+ canvasColor = brightness == ThemeBrightness.dark ? colors.Grey[850] : colors.Grey[50],
+ cardColor = brightness == ThemeBrightness.dark ? colors.Grey[800] : colors.white,
+ dividerColor = brightness == ThemeBrightness.dark ? const Color(0x1FFFFFFF) : const Color(0x1F000000),
+ // Some users want the pre-multiplied color, others just want the opacity.
+ hintColor = brightness == ThemeBrightness.dark ? const Color(0x42FFFFFF) : const Color(0x4C000000),
+ hintOpacity = brightness == ThemeBrightness.dark ? 0.26 : 0.30,
+ highlightColor = const Color(0x66999999),
+ selectedColor = const Color(0x33999999),
+ text = brightness == ThemeBrightness.dark ? typography.white : typography.black {
+ assert(brightness != null);
+
+ if (primarySwatch == null) {
+ if (brightness == ThemeBrightness.dark) {
+ _primaryColor = colors.Grey[900];
+ } else {
+ _primaryColor = colors.Grey[100];
+ }
+ } else {
+ _primaryColor = primarySwatch[500];
+ }
+
+ if (accentColor == null) {
+ _accentColor = primarySwatch == null ? colors.Blue[500] : primarySwatch[500];
+ } else {
+ _accentColor = accentColor;
+ }
+ }
+
+ factory ThemeData.light() => new ThemeData(primarySwatch: colors.Blue, brightness: ThemeBrightness.light);
+ factory ThemeData.dark() => new ThemeData(brightness: ThemeBrightness.dark);
+ factory ThemeData.fallback() => new ThemeData.light();
+
+ final ThemeBrightness brightness;
+ final Map<int, Color> primarySwatch;
+ final Color canvasColor;
+ final Color cardColor;
+ final Color dividerColor;
+ final Color hintColor;
+ final Color highlightColor;
+ final Color selectedColor;
+ final double hintOpacity;
+ final typography.TextTheme text;
+
+ Color _primaryColor;
+ Color get primaryColor => _primaryColor;
+
+ final ThemeBrightness primaryColorBrightness;
+
+ Color _accentColor;
+ Color get accentColor => _accentColor;
+
+ final ThemeBrightness accentColorBrightness;
+}
diff --git a/packages/flutter/lib/theme/typography.dart b/packages/flutter/lib/theme/typography.dart
new file mode 100644
index 0000000..5c8be44
--- /dev/null
+++ b/packages/flutter/lib/theme/typography.dart
@@ -0,0 +1,64 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// See http://www.google.com/design/spec/style/typography.html
+
+import 'dart:sky';
+
+import 'package:sky/painting/text_style.dart';
+
+// TODO(eseidel): Font weights are supposed to be language relative!
+// These values are for English-like text.
+class TextTheme {
+ TextTheme._(Color color54, Color color87)
+ : display4 = new TextStyle(fontSize: 112.0, fontWeight: FontWeight.w100, color: color54),
+ display3 = new TextStyle(fontSize: 56.0, fontWeight: FontWeight.w400, color: color54),
+ display2 = new TextStyle(fontSize: 45.0, fontWeight: FontWeight.w400, color: color54, height: 48.0 / 45.0),
+ display1 = new TextStyle(fontSize: 34.0, fontWeight: FontWeight.w400, color: color54, height: 40.0 / 34.0),
+ headline = new TextStyle(fontSize: 24.0, fontWeight: FontWeight.w400, color: color87, height: 32.0 / 24.0),
+ title = new TextStyle(fontSize: 20.0, fontWeight: FontWeight.w500, color: color87, height: 28.0 / 20.0),
+ subhead = new TextStyle(fontSize: 16.0, fontWeight: FontWeight.w400, color: color87, height: 24.0 / 16.0),
+ body2 = new TextStyle(fontSize: 14.0, fontWeight: FontWeight.w500, color: color87, height: 24.0 / 14.0),
+ body1 = new TextStyle(fontSize: 14.0, fontWeight: FontWeight.w400, color: color87, height: 20.0 / 14.0),
+ caption = new TextStyle(fontSize: 12.0, fontWeight: FontWeight.w400, color: color54),
+ button = new TextStyle(fontSize: 14.0, fontWeight: FontWeight.w500, color: color87);
+
+ final TextStyle display4;
+ final TextStyle display3;
+ final TextStyle display2;
+ final TextStyle display1;
+ final TextStyle headline;
+ final TextStyle title;
+ final TextStyle subhead;
+ final TextStyle body2;
+ final TextStyle body1;
+ final TextStyle caption;
+ final TextStyle button;
+}
+
+
+final TextTheme black = new TextTheme._(
+ const Color(0xFF757575),
+ const Color(0xFF212121)
+);
+
+
+final TextTheme white = new TextTheme._(
+ const Color(0xFF8A8A8A),
+ const Color(0xFFDEDEDE)
+);
+
+// TODO(abarth): Maybe this should be hard-coded in Scaffold?
+const String typeface = 'font-family: sans-serif';
+
+const TextStyle error = const TextStyle(
+ color: const Color(0xD0FF0000),
+ fontFamily: 'monospace',
+ fontSize: 48.0,
+ fontWeight: FontWeight.w900,
+ textAlign: TextAlign.right,
+ decoration: underline,
+ decorationColor: const Color(0xFFFF00),
+ decorationStyle: TextDecorationStyle.double
+);
diff --git a/packages/flutter/lib/theme/view_configuration.dart b/packages/flutter/lib/theme/view_configuration.dart
new file mode 100644
index 0000000..bebad29
--- /dev/null
+++ b/packages/flutter/lib/theme/view_configuration.dart
@@ -0,0 +1,39 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Modeled after Android's ViewConfiguration:
+// https://github.com/android/platform_frameworks_base/blob/master/core/java/android/view/ViewConfiguration.java
+
+// TODO(ianh): Figure out actual specced height for status bar
+const double kStatusBarHeight = 50.0;
+
+// TODO(eseidel) Toolbar needs to change size based on orientation:
+// http://www.google.com/design/spec/layout/structure.html#structure-app-bar
+// Mobile Landscape: 48dp
+// Mobile Portrait: 56dp
+// Tablet/Desktop: 64dp
+const double kToolBarHeight = 56.0;
+
+const double kMaterialDrawerHeight = 140.0;
+const double kScrollbarSize = 10.0;
+const double kScrollbarFadeDuration = 250.0;
+const double kScrollbarFadeDelay = 300.0;
+const double kFadingEdgeLength = 12.0;
+const double kPressedStateDuration = 64.0;
+const double kDefaultLongPressTimeout = 500.0;
+const double kTapTimeout = 100.0;
+const double kJumpTapTimeout = 500.0;
+const double kDoubleTapTimeout = 300.0;
+const double kDoubleTapMinTime = 40.0;
+const double kHoverTapTimeout = 150.0;
+const double kHoverTapSlop = 20.0;
+const double kZoomControlsTimeout = 3000.0;
+const double kEdgeSlop = 12.0;
+const double kTouchSlop = 8.0;
+const double kDoubleTapTouchSlop = kTouchSlop;
+const double kPagingTouchSlop = kTouchSlop * 2.0;
+const double kDoubleTapSlop = 100.0;
+const double kWindowTouchSlop = 16.0;
+const double kMinFlingVelocity = 50.0;
+const double kMaxFlingVelocity = 8000.0;
diff --git a/packages/flutter/lib/widgets/README.md b/packages/flutter/lib/widgets/README.md
new file mode 100644
index 0000000..70df5f2
--- /dev/null
+++ b/packages/flutter/lib/widgets/README.md
@@ -0,0 +1,456 @@
+Sky Widgets
+===========
+
+Sky widgets are built using a functional-reactive framework, which takes
+inspiration from [React](http://facebook.github.io/react/). The central idea is
+that you build your UI out of components. Components describe what their view
+should look like given their current configuration and state. When a component's
+state changes, the component rebuilds its description, which the framework diffs
+against the previous description in order to determine the minial changes needed
+in the underlying render tree to transition from one state to the next.
+
+Hello World
+-----------
+
+To build an application, create a subclass of App and instantiate it:
+
+```dart
+import 'package:sky/widgets/basic.dart';
+
+class HelloWorldApp extends App {
+ Widget build() {
+ return new Text('Hello, world!');
+ }
+}
+
+void main() {
+ runApp(new HelloWorldApp());
+}
+```
+
+An app is comprised of (and is, itself, a) widgets. The most commonly authored
+widgets are, like `App`, subclasses of `Component`. A component's main job is
+to implement `Widget build()` by returning newly-created instances of other
+widgets. If a component builds other components, the framework will build those
+components in turn until the process bottoms out in a collection of basic
+widgets, such as those in `sky/widgets/basic.dart`. In the case of
+`HelloWorldApp`, the `build` function simply returns a new `Text` node, which is
+a basic widget representing a string of text.
+
+Basic Widgets
+-------------
+
+Sky comes with a suite of powerful basic widgets, of which the following are
+very commonly used:
+
+ * `Text`: The `Text` widget lets you create a run of styled text within your
+ application.
+
+ * `Flex`: The `Flex` widget lets you create flexible layouts in both the
+ horizontal and vertical direction. Its design is based on the web's flexbox
+ layout model. You can also use the simpler `Block` widget to create vertical
+ layouts of inflexible items.
+
+ * `Container`: The `Container` widget lets you create rectangular visual
+ element. A container can be decorated with a `BoxDecoration`, such as a
+ background, a border, or a shadow. A `Container` can also have margins,
+ padding, and constraints applied to its size. In addition, a `Container` can
+ be transformed in three dimensional space using a matrix.
+
+ * `Image`: The `Image` widget lets you display an image, referenced using a
+ URL. The underlying image is cached, which means if several `Image` widgets
+ refer to the same URL, they'll share the underlying image resource.
+
+Below is a simple toolbar example that shows how to combine these widgets:
+
+```dart
+import 'package:sky/widgets/basic.dart';
+
+class MyToolBar extends Component {
+ Widget build() {
+ return new Container(
+ decoration: const BoxDecoration(
+ backgroundColor: const Color(0xFF00FFFF)
+ ),
+ height: 56.0,
+ padding: const EdgeDims.symmetric(horizontal: 8.0),
+ child: new Flex([
+ new Image(src: 'menu.png', size: const Size(25.0, 25.0)),
+ new Flexible(child: new Text('My awesome toolbar')),
+ new Image(src: 'search.png', size: const Size(25.0, 25.0)),
+ ])
+ );
+ }
+}
+```
+
+The `MyToolBar` component creates a cyan `Container` with a height of 56
+device-independent pixels with an internal padding of 8 pixels, both on the
+left and the right. Inside the container, `MyToolBar` uses a `Flex` layout
+in the (default) horizontal direction. The middle child, the `Text` widget, is
+marked as `Flexible`, which means it expands to fill any remaining available
+space that hasn't been consumed by the inflexible children. You can have
+multiple `Flexible` children and determine the ratio in which they consume the
+available space using the `flex` argument to `Flexible`.
+
+To use this component, we simply create an instance of `MyToolBar` in a `build`
+function:
+
+```dart
+import 'package:sky/widgets/basic.dart';
+
+import 'my_tool_bar.dart';
+
+class DemoApp extends App {
+ Widget build() {
+ return new Center(child: new MyToolBar());
+ }
+}
+
+void main() {
+ runApp(new DemoApp());
+}
+```
+
+Here, we've used the `Center` widget to center the toolbar within the view, both
+vertically and horizontally. If we didn't center the toolbar, it would fill the
+view, both vertically and horizontally, because the root widget is sized to fill
+the view.
+
+Listening to Events
+-------------------
+
+In addition to being stunningly beautiful, most applications react to user
+input. The first step in building an interactive application is to listen for
+input events. Let's see how that works by creating a simple button:
+
+```dart
+import 'package:sky/widgets/basic.dart';
+
+final BoxDecoration _decoration = new BoxDecoration(
+ borderRadius: 5.0,
+ gradient: new LinearGradient(
+ endPoints: [ Point.origin, const Point(0.0, 36.0) ],
+ colors: [ const Color(0xFFEEEEEE), const Color(0xFFCCCCCC) ]
+ )
+);
+
+class MyButton extends Component {
+ Widget build() {
+ return new Listener(
+ onGestureTap: (event) {
+ print('MyButton was tapped!');
+ },
+ child: new Container(
+ height: 36.0,
+ padding: const EdgeDims.all(8.0),
+ margin: const EdgeDims.symmetric(horizontal: 8.0),
+ decoration: _decoration,
+ child: new Center(
+ child: new Text('Engage')
+ )
+ )
+ );
+ }
+}
+```
+
+The `Listener` widget doesn't have an visual representation but instead listens
+for events bubbling through the application. When a tap gesture bubbles out from
+the `Container`, the `Listener` will call its `onGestureTap` callback, in this
+case printing a message to the console.
+
+You can use `Listener` to listen for a variety of input events, including
+low-level pointer events and higher-level gesture events, such as taps, scrolls,
+and flings.
+
+Generic Components
+------------------
+
+One of the most powerful features of components is the ability to pass around
+references to already-built widgets and reuse them in your `build` function. For
+example, we wouldn't want to define a new button component every time we wanted
+a button with a novel label:
+
+```dart
+class MyButton extends Component {
+ MyButton({ this.child, this.onPressed });
+
+ final Widget child;
+ final Function onPressed;
+
+ Widget build() {
+ return new Listener(
+ onGestureTap: (_) {
+ if (onPressed != null)
+ onPressed();
+ },
+ child: new Container(
+ height: 36.0,
+ padding: const EdgeDims.all(8.0),
+ margin: const EdgeDims.symmetric(horizontal: 8.0),
+ decoration: _decoration,
+ child: new Center(child: child)
+ )
+ );
+ }
+}
+```
+
+Rather than providing the button's label as a `String`, we've let the code that
+uses `MyButton` provide an arbitrary `Widget` to put inside the button. For
+example, we can put an elaborate layout involving text and an image inside the
+button:
+
+```dart
+ Widget build() {
+ return new MyButton(
+ child: new ShrinkWrapWidth(
+ child: new Flex([
+ new Image(src: 'thumbs-up.png', size: const Size(25.0, 25.0)),
+ new Container(
+ padding: const EdgeDims.only(left: 10.0),
+ child: new Text('Thumbs up')
+ )
+ ])
+ )
+ );
+ }
+```
+
+State
+-----
+
+By default, components are stateless. Components usually receive
+arguments from their parent component in their constructor, which they typically
+store in `final` member variables. When a component is asked to `build`, it uses
+these stored values to derive new arguments for the subcomponents it creates.
+For example, the generic version of `MyButton` above follows this pattern. In
+this way, state naturally flows "down" the component hierachy.
+
+Some components, however, have mutable state that represents the transient state
+of that part of the user interface. For example, consider a dialog widget with
+a checkbox. While the dialog is open, the user might check and uncheck the
+checkbox several times before closing the dialog and committing the final value
+of the checkbox to the underlying application data model.
+
+```dart
+class MyCheckbox extends Component {
+ MyCheckbox({ this.value, this.onChanged });
+
+ final bool value;
+ final Function onChanged;
+
+ Widget build() {
+ Color color = value ? const Color(0xFF00FF00) : const Color(0xFF0000FF);
+ return new Listener(
+ onGestureTap: (_) => onChanged(!value),
+ child: new Container(
+ height: 25.0,
+ width: 25.0,
+ decoration: new BoxDecoration(backgroundColor: color)
+ )
+ );
+ }
+}
+
+class MyDialog extends StatefulComponent {
+ MyDialog({ this.onDismissed });
+
+ Function onDismissed;
+ bool _checkboxValue = false;
+
+ void _handleCheckboxValueChanged(bool value) {
+ setState(() {
+ _checkboxValue = value;
+ });
+ }
+
+ void syncFields(MyDialog source) {
+ onDismissed = source.onDismissed;
+ }
+
+ Widget build() {
+ return new Flex([
+ new MyCheckbox(
+ value: _checkboxValue,
+ onChanged: _handleCheckboxValueChanged
+ ),
+ new MyButton(
+ onPressed: () => onDismissed(_checkboxValue),
+ child: new Text("Save")
+ ),
+ ],
+ justifyContent: FlexJustifyContent.center);
+ }
+}
+```
+
+The `MyCheckbox` component follows the pattern for stateless components. It
+stores the values it receives in its constructor in `final` member variables,
+which it then uses during its `build` function. Notice that when the user taps
+on the checkbox, the checkbox itself doesn't use `value`. Instead, the checkbox
+calls a function it received from its parent component. This pattern lets you
+store state higher in the component hierarchy, which causes the state to persist
+for longer periods of time. In the extreme, the state stored on the `App`
+component persists for the lifetime of the application.
+
+The `MyDialog` component is more complicated because it is a stateful component.
+Let's walk through the differences in `MyDialog` caused by its being stateful:
+
+ * `MyDialog` extends StatefulComponent instead of Component.
+
+ * `MyDialog` has non-`final` member variables. Over the lifetime of the dialog,
+ we'll need to modify the values of these member variables, which means we
+ cannot mark them `final`.
+
+ * `MyDialog` has private member variables. By convention, components store
+ values they receive from their parent in public member variables and store
+ their own internal, transient state in private member variables. There's no
+ requirement to follow this convention, but we've found that it helps keep us
+ organized.
+
+ * Whenever `MyDialog` modifies its transient state, the dialog does so inside
+ a `setState` callback. Using `setState` is important because it marks the
+ component as dirty and schedules it to be rebuilt. If a component modifies
+ its transient state outside of a `setState` callback, the framework won't
+ know that the component has changed state and might not call the component's
+ `build` function, which means the user interface might not update to reflect
+ the changed state.
+
+ * `MyDialog` implements the `syncFields` member function. To understand
+ `syncFields`, we'll need to dive a bit deeper into how the `build` function
+ is used by the framework.
+
+ A component's `build` function returns a tree of widgets that represent a
+ "virtual" description of its appearance. The first time the framework calls
+ `build`, the framework walks this description and creates a "physical" tree
+ of `RenderObjects` that matches the description. When the framework calls
+ `build` again, the component still returns a fresh description of its
+ appearence, but this time the framework compares the new description with the
+ previous description and makes the minimal modifications to the underlying
+ `RenderObjects` to make them match the new description.
+
+ In this process, old stateless components are discarded and the new stateless
+ components created by the parent component are retained in the widget
+ hierchy. Old _stateful_ components, however, cannot simply be discarded
+ because they contain state that needs to be preserved. Instead, the old
+ stateful components are retained in the widget hierarchy and asked to
+ `syncFields` with the new instance of the component created by the parent in
+ its `build` function.
+
+ Without `syncFields`, the new values the parent component passed to the
+ `MyDialog` constructor in the parent's `build` function would be lost because
+ they would be stored only as member variables on the new instance of the
+ component, which is not retained in the component hiearchy. Therefore, the
+ `syncFields` function in a component should update `this` to account for the
+ new values the parent passed to `source` because `source` is the authorative
+ source of those values.
+
+ By convention, components typically store the values they receive from their
+ parents in public member variables and their own internal state in private
+ member variables. Therefore, a typical `syncFields` implementation will copy
+ the public, but not the private, member variables from `source`. When
+ following this convention, there is no need to copy over the private member
+ variables because those represent the internal state of the object and `this`
+ is the authoritative source of that state.
+
+ When implementing a `StatefulComponent`, make sure to call
+ `super.syncFields(source)` from within your `syncFields()` method,
+ unless you are extending `StatefulComponent` directly.
+
+Finally, when the user taps on the "Save" button, `MyDialog` follows the same
+pattern as `MyCheckbox` and calls a function passed in by its parent component
+to return the final value of the checkbox up the hierarchy.
+
+didMount and didUnmount
+-----------------------
+
+When a component is inserted into the widget tree, the framework calls the
+`didMount` function on the component. When a component is removed from the
+widget tree, the framework calls the `didUnmount` function on the component.
+In some situations, a component that has been unmounted might again be mounted.
+For example, a stateful component might receive a pre-built component from its
+parent (similar to `child` from the `MyButton` example above) that the stateful
+component might incorporate, then not incorporate, and then later incorporate
+again in the widget tree it builds, according to its changing state.
+
+Typically, a stateful component will override `didMount` to initialize any
+non-trivial internal state. Initializing internal state in `didMount` is more
+efficient (and less error-prone) than initializing that state during the
+component's constructor because parent executes the component's constructor each
+time the parent rebuilds even though the framework mounts only the first
+instance into the widget heiarchy. (Instead of mounting later instances, the
+framework passes them to the original instance in `syncFields` so that the first
+instance of the component can incorporate the values passed by the parent to the
+component's constructor.)
+
+Components often override `didUnmount` to release resources or to cancel
+subscriptions to event streams from outside the widget hierachy. When overriding
+either `didMount` or `didUnmount`, a component should call its superclass's
+`didMount` or `didUnmount` function.
+
+initState
+---------
+
+The framework calls the `initState` function on stateful components before
+building them. The default implementation of initState does nothing. If your
+component requires non-trivial work to initialize its state, you should
+override initState and do it there rather than doing it in the stateful
+component's constructor. If the component doesn't need to be built (for
+example, if it was constructed just to have its fields synchronized with
+an existing stateful component) you'll avoid unnecessary work. Also, some
+operations that involve interacting with the widget hierarchy cannot be
+done in a component's constructor.
+
+When overriding `initState`, a component should call its superclass's
+`initState` function.
+
+Keys
+----
+
+If a component requires fine-grained control over which widgets sync with each
+other, the component can assign keys to the widgets it builds. Without keys, the
+framework matches widgets in the current and previous build according to their
+`runtimeType` and the order in which they appear. With keys, the framework
+requires that the two widgets have the same `key` as well as the same
+`runtimeType`.
+
+Keys are most useful in components that build many instances of the same type of
+widget. For example, consider an infinite list component that builds just enough
+copies of a particular widget to fill its visible region:
+
+ * Without keys, the first entry in the current build would always sync with the
+ first entry in the previous build, even if, semantically, the first entry in
+ the list just scrolled off screen and is no longer visible in the viewport.
+
+ * By assigning each entry in the list a "semantic" key, the infinite list can
+ be more efficient because the framework will sync entries with matching
+ semantic keys and therefore similiar (or identical) visual appearances.
+ Moreover, syncing the entries semantically means that state retained in
+ stateful subcomponents will remain attached to the same semantic entry rather
+ than the entry in the same numerical position in the viewport.
+
+Useful debugging tools
+----------------------
+
+This is a quick way to dump the entire widget tree to the console.
+This can be quite useful in figuring out exactly what is going on when
+working with the widgets system. For this to work, you have to have
+launched your app with `runApp()`.
+
+```dart
+import 'package:sky/widget/widget.dart';
+
+debugDumpApp();
+```
+
+Dependencies
+------------
+
+ * `package:vector_math`
+ * [`package:sky/animation`](../animation)
+ * [`package:sky/base`](../base)
+ * [`package:sky/painting`](../painting)
+ * [`package:sky/rendering`](../rendering)
+ * [`package:sky/theme`](../theme)
diff --git a/packages/flutter/lib/widgets/animated_component.dart b/packages/flutter/lib/widgets/animated_component.dart
new file mode 100644
index 0000000..37e077f
--- /dev/null
+++ b/packages/flutter/lib/widgets/animated_component.dart
@@ -0,0 +1,35 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/animation/animation_performance.dart';
+import 'package:sky/widgets/basic.dart';
+
+abstract class AnimatedComponent extends StatefulComponent {
+
+ AnimatedComponent({ String key }) : super(key: key);
+
+ void syncFields(AnimatedComponent source) { }
+
+ final List<AnimationPerformance> _watchedPerformances = new List<AnimationPerformance>();
+
+ void watch(AnimationPerformance performance) {
+ assert(!_watchedPerformances.contains(performance));
+ _watchedPerformances.add(performance);
+ if (mounted)
+ performance.addListener(scheduleBuild);
+ }
+
+ void didMount() {
+ for (AnimationPerformance performance in _watchedPerformances)
+ performance.addListener(scheduleBuild);
+ super.didMount();
+ }
+
+ void didUnmount() {
+ for (AnimationPerformance performance in _watchedPerformances)
+ performance.removeListener(scheduleBuild);
+ super.didUnmount();
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/animation_builder.dart b/packages/flutter/lib/widgets/animation_builder.dart
new file mode 100644
index 0000000..15cff58
--- /dev/null
+++ b/packages/flutter/lib/widgets/animation_builder.dart
@@ -0,0 +1,125 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:vector_math/vector_math.dart';
+
+import 'package:sky/animation/animation_performance.dart';
+import 'package:sky/animation/curves.dart';
+import 'package:sky/base/lerp.dart';
+import 'package:sky/painting/box_painter.dart';
+import 'package:sky/theme/shadows.dart';
+import 'package:sky/widgets/basic.dart';
+
+// This class builds a Container object from a collection of optionally-
+// animated properties. Use syncFields to update the Container's properties,
+// which will optionally animate them using an AnimationPerformance.
+class AnimationBuilder {
+
+ AnimationBuilder();
+
+ AnimatedType<double> opacity;
+ AnimatedType<Point> position;
+ AnimatedType<double> shadow;
+ AnimatedColor backgroundColor;
+
+ // These don't animate, but are used to build the AnimationBuilder anyway.
+ double borderRadius;
+ Shape shape;
+
+ Map<AnimatedVariable, AnimationPerformance> _variableToPerformance =
+ new Map<AnimatedVariable, AnimationPerformance>();
+
+ AnimationPerformance createPerformance(List<AnimatedType> variables,
+ { Duration duration }) {
+ AnimationPerformance performance = new AnimationPerformance()
+ ..duration = duration
+ ..variable = new AnimatedList(variables);
+ for (AnimatedVariable variable in variables)
+ _variableToPerformance[variable] = performance;
+ return performance;
+ }
+
+ Widget build(Widget child) {
+ Widget current = child;
+ if (shadow != null || backgroundColor != null ||
+ borderRadius != null || shape != null) {
+ current = new DecoratedBox(
+ decoration: new BoxDecoration(
+ borderRadius: borderRadius,
+ shape: shape,
+ boxShadow: shadow != null ? _computeShadow(shadow.value) : null,
+ backgroundColor: backgroundColor != null ? backgroundColor.value : null),
+ child: current);
+ }
+
+ if (position != null) {
+ Matrix4 transform = new Matrix4.identity();
+ transform.translate(position.value.x, position.value.y);
+ current = new Transform(transform: transform, child: current);
+ }
+
+ if (opacity != null) {
+ current = new Opacity(opacity: opacity.value, child: current);
+ }
+
+ return current;
+ }
+
+ void updateFields({
+ AnimatedType<double> shadow,
+ AnimatedColor backgroundColor,
+ double borderRadius,
+ Shape shape
+ }) {
+ _updateField(this.shadow, shadow);
+ _updateField(this.backgroundColor, backgroundColor);
+ this.borderRadius = borderRadius;
+ this.shape = shape;
+ }
+
+ void _updateField(AnimatedType variable, AnimatedType sourceVariable) {
+ if (variable == null)
+ return; // TODO(mpcomplete): Should we handle transition from null?
+
+ AnimationPerformance performance = _variableToPerformance[variable];
+ if (performance == null) {
+ // If there's no performance, no need to animate.
+ if (sourceVariable != null)
+ variable.value = sourceVariable.value;
+ return;
+ }
+
+ if (variable.value != sourceVariable.value) {
+ variable
+ ..begin = variable.value
+ ..end = sourceVariable.value;
+ performance
+ ..progress = 0.0
+ ..play();
+ }
+ }
+}
+
+class AnimatedColor extends AnimatedType<Color> {
+ AnimatedColor(Color begin, { Color end, Curve curve: linear })
+ : super(begin, end: end, curve: curve);
+
+ void setFraction(double t) {
+ value = lerpColor(begin, end, t);
+ }
+}
+
+List<BoxShadow> _computeShadow(double level) {
+ if (level < 1.0) // shadows[1] is the first shadow
+ return null;
+
+ int level1 = level.floor();
+ int level2 = level.ceil();
+ double t = level - level1.toDouble();
+
+ List<BoxShadow> shadow = new List<BoxShadow>();
+ for (int i = 0; i < shadows[level1].length; ++i)
+ shadow.add(lerpBoxShadow(shadows[level1][i], shadows[level2][i], t));
+ return shadow;
+}
diff --git a/packages/flutter/lib/widgets/basic.dart b/packages/flutter/lib/widgets/basic.dart
new file mode 100644
index 0000000..76712c1
--- /dev/null
+++ b/packages/flutter/lib/widgets/basic.dart
@@ -0,0 +1,607 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:sky' as sky;
+
+import 'package:vector_math/vector_math.dart';
+
+import 'package:sky/mojo/asset_bundle.dart';
+import 'package:sky/mojo/net/image_cache.dart' as image_cache;
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/rendering/block.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/rendering/paragraph.dart';
+import 'package:sky/rendering/stack.dart';
+import 'package:sky/widgets/default_text_style.dart';
+import 'package:sky/widgets/widget.dart';
+
+export 'package:sky/rendering/box.dart' show BackgroundImage, BoxConstraints, BoxDecoration, Border, BorderSide, EdgeDims;
+export 'package:sky/rendering/flex.dart' show FlexDirection, FlexJustifyContent, FlexAlignItems;
+export 'package:sky/rendering/object.dart' show Point, Offset, Size, Rect, Color, Paint, Path;
+export 'package:sky/widgets/widget.dart' show Widget, Component, StatefulComponent, App, runApp, Listener, ParentDataNode;
+
+
+// PAINTING NODES
+
+class Opacity extends OneChildRenderObjectWrapper {
+ Opacity({ String key, this.opacity, Widget child })
+ : super(key: key, child: child);
+
+ final double opacity;
+
+ RenderOpacity createNode() => new RenderOpacity(opacity: opacity);
+ RenderOpacity get root => super.root;
+
+ void syncRenderObject(Opacity old) {
+ super.syncRenderObject(old);
+ root.opacity = opacity;
+ }
+}
+
+class ColorFilter extends OneChildRenderObjectWrapper {
+ ColorFilter({ String key, this.color, this.transferMode, Widget child })
+ : super(key: key, child: child);
+
+ final Color color;
+ final sky.TransferMode transferMode;
+
+ RenderColorFilter createNode() => new RenderColorFilter(color: color, transferMode: transferMode);
+ RenderColorFilter get root => super.root;
+
+ void syncRenderObject(ColorFilter old) {
+ super.syncRenderObject(old);
+ root.color = color;
+ root.transferMode = transferMode;
+ }
+}
+
+class DecoratedBox extends OneChildRenderObjectWrapper {
+ DecoratedBox({ String key, this.decoration, Widget child })
+ : super(key: key, child: child);
+
+ final BoxDecoration decoration;
+
+ RenderDecoratedBox createNode() => new RenderDecoratedBox(decoration: decoration);
+ RenderDecoratedBox get root => super.root;
+
+ void syncRenderObject(DecoratedBox old) {
+ super.syncRenderObject(old);
+ root.decoration = decoration;
+ }
+}
+
+class CustomPaint extends OneChildRenderObjectWrapper {
+ CustomPaint({ String key, this.callback, this.token, Widget child })
+ : super(key: key, child: child);
+
+ final CustomPaintCallback callback;
+ final dynamic token; // set this to be repainted automatically when the token changes
+
+ RenderCustomPaint createNode() => new RenderCustomPaint(callback: callback);
+ RenderCustomPaint get root => super.root;
+
+ void syncRenderObject(CustomPaint old) {
+ super.syncRenderObject(old);
+ if (old != null && old.token != token)
+ root.markNeedsPaint();
+ root.callback = callback;
+ }
+
+ void remove() {
+ root.callback = null;
+ super.remove();
+ }
+}
+
+class ClipRect extends OneChildRenderObjectWrapper {
+ ClipRect({ String key, Widget child })
+ : super(key: key, child: child);
+
+ RenderClipRect createNode() => new RenderClipRect();
+ RenderClipRect get root => super.root;
+
+ // Nothing to sync, so we don't implement syncRenderObject()
+}
+
+class ClipRRect extends OneChildRenderObjectWrapper {
+ ClipRRect({ String key, this.xRadius, this.yRadius, Widget child })
+ : super(key: key, child: child);
+
+ final double xRadius;
+ final double yRadius;
+
+ RenderClipRRect createNode() => new RenderClipRRect(xRadius: xRadius, yRadius: yRadius);
+ RenderClipRRect get root => super.root;
+
+ void syncRenderObject(ClipRRect old) {
+ super.syncRenderObject(old);
+ root.xRadius = xRadius;
+ root.yRadius = yRadius;
+ }
+}
+
+class ClipOval extends OneChildRenderObjectWrapper {
+ ClipOval({ String key, Widget child })
+ : super(key: key, child: child);
+
+ RenderClipOval createNode() => new RenderClipOval();
+ RenderClipOval get root => super.root;
+
+ // Nothing to sync, so we don't implement syncRenderObject()
+}
+
+
+// POSITIONING AND SIZING NODES
+
+class Transform extends OneChildRenderObjectWrapper {
+ Transform({ String key, this.transform, Widget child })
+ : super(key: key, child: child);
+
+ final Matrix4 transform;
+
+ RenderTransform createNode() => new RenderTransform(transform: transform);
+ RenderTransform get root => super.root;
+
+ void syncRenderObject(Transform old) {
+ super.syncRenderObject(old);
+ root.transform = transform;
+ }
+}
+
+class Padding extends OneChildRenderObjectWrapper {
+ Padding({ String key, this.padding, Widget child })
+ : super(key: key, child: child);
+
+ final EdgeDims padding;
+
+ RenderPadding createNode() => new RenderPadding(padding: padding);
+ RenderPadding get root => super.root;
+
+ void syncRenderObject(Padding old) {
+ super.syncRenderObject(old);
+ root.padding = padding;
+ }
+}
+
+class Center extends OneChildRenderObjectWrapper {
+ Center({ String key, Widget child })
+ : super(key: key, child: child);
+
+ RenderPositionedBox createNode() => new RenderPositionedBox();
+ RenderPositionedBox get root => super.root;
+
+ // Nothing to sync, so we don't implement syncRenderObject()
+}
+
+class SizedBox extends OneChildRenderObjectWrapper {
+ SizedBox({ String key, this.width, this.height, Widget child })
+ : super(key: key, child: child);
+
+ final double width;
+ final double height;
+
+ RenderConstrainedBox createNode() => new RenderConstrainedBox(additionalConstraints: _additionalConstraints());
+ RenderConstrainedBox get root => super.root;
+
+ BoxConstraints _additionalConstraints() {
+ BoxConstraints result = const BoxConstraints();
+ if (width != null)
+ result = result.applyWidth(width);
+ if (height != null)
+ result = result.applyHeight(height);
+ return result;
+ }
+
+ void syncRenderObject(SizedBox old) {
+ super.syncRenderObject(old);
+ root.additionalConstraints = _additionalConstraints();
+ }
+}
+
+class ConstrainedBox extends OneChildRenderObjectWrapper {
+ ConstrainedBox({ String key, this.constraints, Widget child })
+ : super(key: key, child: child);
+
+ final BoxConstraints constraints;
+
+ RenderConstrainedBox createNode() => new RenderConstrainedBox(additionalConstraints: constraints);
+ RenderConstrainedBox get root => super.root;
+
+ void syncRenderObject(ConstrainedBox old) {
+ super.syncRenderObject(old);
+ root.additionalConstraints = constraints;
+ }
+}
+
+class AspectRatio extends OneChildRenderObjectWrapper {
+ AspectRatio({ String key, this.aspectRatio, Widget child })
+ : super(key: key, child: child);
+
+ final double aspectRatio;
+
+ RenderAspectRatio createNode() => new RenderAspectRatio(aspectRatio: aspectRatio);
+ RenderAspectRatio get root => super.root;
+
+ void syncRenderObject(AspectRatio old) {
+ super.syncRenderObject(old);
+ root.aspectRatio = aspectRatio;
+ }
+}
+
+class ShrinkWrapWidth extends OneChildRenderObjectWrapper {
+ ShrinkWrapWidth({ String key, this.stepWidth, this.stepHeight, Widget child })
+ : super(key: key, child: child);
+
+ final double stepWidth;
+ final double stepHeight;
+
+ RenderShrinkWrapWidth createNode() => new RenderShrinkWrapWidth();
+ RenderShrinkWrapWidth get root => super.root;
+
+ void syncRenderObject(ShrinkWrapWidth old) {
+ super.syncRenderObject(old);
+ root.stepWidth = stepWidth;
+ root.stepHeight = stepHeight;
+ }
+}
+
+class Baseline extends OneChildRenderObjectWrapper {
+ Baseline({ String key, this.baseline, this.baselineType: TextBaseline.alphabetic, Widget child })
+ : super(key: key, child: child);
+
+ final double baseline; // in pixels
+ final TextBaseline baselineType;
+
+ RenderBaseline createNode() => new RenderBaseline(baseline: baseline, baselineType: baselineType);
+ RenderBaseline get root => super.root;
+
+ void syncRenderObject(Baseline old) {
+ super.syncRenderObject(old);
+ root.baseline = baseline;
+ root.baselineType = baselineType;
+ }
+}
+
+class Viewport extends OneChildRenderObjectWrapper {
+ Viewport({ String key, this.offset: 0.0, Widget child })
+ : super(key: key, child: child);
+
+ final double offset;
+
+ RenderViewport createNode() => new RenderViewport(scrollOffset: new Offset(0.0, offset));
+ RenderViewport get root => super.root;
+
+ void syncRenderObject(Viewport old) {
+ super.syncRenderObject(old);
+ root.scrollOffset = new Offset(0.0, offset);
+ }
+}
+
+class SizeObserver extends OneChildRenderObjectWrapper {
+ SizeObserver({ String key, this.callback, Widget child })
+ : super(key: key, child: child);
+
+ final SizeChangedCallback callback;
+
+ RenderSizeObserver createNode() => new RenderSizeObserver(callback: callback);
+ RenderSizeObserver get root => super.root;
+
+ void syncRenderObject(SizeObserver old) {
+ super.syncRenderObject(old);
+ root.callback = callback;
+ }
+
+ void remove() {
+ root.callback = null;
+ super.remove();
+ }
+}
+
+
+// CONVENIENCE CLASS TO COMBINE COMMON PAINTING, POSITIONING, AND SIZING NODES
+
+class Container extends Component {
+
+ Container({
+ String key,
+ this.child,
+ this.constraints,
+ this.decoration,
+ this.width,
+ this.height,
+ this.margin,
+ this.padding,
+ this.transform
+ }) : super(key: key);
+
+ final Widget child;
+ final BoxConstraints constraints;
+ final BoxDecoration decoration;
+ final EdgeDims margin;
+ final EdgeDims padding;
+ final Matrix4 transform;
+ final double width;
+ final double height;
+
+ Widget build() {
+ Widget current = child;
+
+ if (child == null && width == null && height == null)
+ current = new ConstrainedBox(constraints: BoxConstraints.expand);
+
+ if (padding != null)
+ current = new Padding(padding: padding, child: current);
+
+ if (decoration != null)
+ current = new DecoratedBox(decoration: decoration, child: current);
+
+ if (width != null || height != null)
+ current = new SizedBox(
+ width: width,
+ height: height,
+ child: current
+ );
+
+ if (constraints != null)
+ current = new ConstrainedBox(constraints: constraints, child: current);
+
+ if (margin != null)
+ current = new Padding(padding: margin, child: current);
+
+ if (transform != null)
+ current = new Transform(transform: transform, child: current);
+
+ return current;
+ }
+
+}
+
+
+// LAYOUT NODES
+
+class Block extends MultiChildRenderObjectWrapper {
+ Block(List<Widget> children, { String key })
+ : super(key: key, children: children);
+
+ RenderBlock createNode() => new RenderBlock();
+ RenderBlock get root => super.root;
+}
+
+class Stack extends MultiChildRenderObjectWrapper {
+ Stack(List<Widget> children, { String key })
+ : super(key: key, children: children);
+
+ RenderStack createNode() => new RenderStack();
+ RenderStack get root => super.root;
+}
+
+class Positioned extends ParentDataNode {
+ Positioned({
+ String key,
+ Widget child,
+ double top,
+ double right,
+ double bottom,
+ double left
+ }) : super(child,
+ new StackParentData()..top = top
+ ..right = right
+ ..bottom = bottom
+ ..left = left,
+ key: key);
+}
+
+class Flex extends MultiChildRenderObjectWrapper {
+
+ Flex(List<Widget> children, {
+ String key,
+ this.direction: FlexDirection.horizontal,
+ this.justifyContent: FlexJustifyContent.start,
+ this.alignItems: FlexAlignItems.center
+ }) : super(key: key, children: children);
+
+ final FlexDirection direction;
+ final FlexJustifyContent justifyContent;
+ final FlexAlignItems alignItems;
+
+ RenderFlex createNode() => new RenderFlex(direction: this.direction);
+ RenderFlex get root => super.root;
+
+ void syncRenderObject(Widget old) {
+ super.syncRenderObject(old);
+ root.direction = direction;
+ root.justifyContent = justifyContent;
+ root.alignItems = alignItems;
+ }
+
+}
+
+class Flexible extends ParentDataNode {
+ Flexible({ String key, int flex: 1, Widget child })
+ : super(child, new FlexBoxParentData()..flex = flex, key: key);
+}
+
+class Inline extends LeafRenderObjectWrapper {
+ Inline({ String key, this.text }) : super(key: key);
+
+ final InlineBase text;
+
+ RenderParagraph createNode() => new RenderParagraph(text);
+ RenderParagraph get root => super.root;
+
+ void syncRenderObject(Widget old) {
+ super.syncRenderObject(old);
+ root.inline = text;
+ }
+}
+
+class StyledText extends Component {
+ // elements ::= "string" | [<text-style> <elements>*]
+ // Where "string" is text to display and text-style is an instance of
+ // TextStyle. The text-style applies to all of the elements that follow.
+ StyledText({ this.elements, String key }) : super(key: key);
+
+ final dynamic elements;
+
+ InlineBase _toInline(dynamic element) {
+ if (element is String)
+ return new InlineText(element);
+ if (element is Iterable && element.first is TextStyle)
+ return new InlineStyle(element.first, element.skip(1).map(_toInline).toList());
+ throw new ArgumentError("invalid elements");
+ }
+
+ Widget build() {
+ return new Inline(text: _toInline(elements));
+ }
+}
+
+class Text extends Component {
+ Text(this.data, { String key, TextStyle this.style }) : super(key: key);
+
+ final String data;
+ final TextStyle style;
+
+ Widget build() {
+ InlineBase text = new InlineText(data);
+ TextStyle defaultStyle = DefaultTextStyle.of(this);
+ TextStyle combinedStyle;
+ if (defaultStyle != null) {
+ if (style != null)
+ combinedStyle = defaultStyle.merge(style);
+ else
+ combinedStyle = defaultStyle;
+ } else {
+ combinedStyle = style;
+ }
+ if (combinedStyle != null)
+ text = new InlineStyle(combinedStyle, [text]);
+ return new Inline(text: text);
+ }
+}
+
+class Image extends LeafRenderObjectWrapper {
+ Image({ sky.Image image, this.size, this.colorFilter })
+ : image = image,
+ super(key: image.hashCode.toString()); // TODO(ianh): Find a way to uniquely identify the sky.Image rather than using hashCode, which could collide
+
+ final sky.Image image;
+ final Size size;
+ final sky.ColorFilter colorFilter;
+
+ RenderImage createNode() => new RenderImage(image, size, colorFilter: colorFilter);
+ RenderImage get root => super.root;
+
+ void syncRenderObject(Widget old) {
+ super.syncRenderObject(old);
+ root.image = image;
+ root.requestedSize = size;
+ root.colorFilter = colorFilter;
+ }
+}
+
+class FutureImage extends StatefulComponent {
+ FutureImage({ String key, this.image, this.size, this.colorFilter })
+ : super(key: key);
+
+ Future<sky.Image> image;
+ Size size;
+ sky.ColorFilter colorFilter;
+
+ sky.Image _resolvedImage;
+
+ void _resolveImage() {
+ image.then((sky.Image resolvedImage) {
+ if (!mounted)
+ return;
+ setState(() {
+ _resolvedImage = resolvedImage;
+ });
+ });
+ }
+
+ void didMount() {
+ super.didMount();
+ _resolveImage();
+ }
+
+ void syncFields(FutureImage source) {
+ bool needToResolveImage = (image != source.image);
+ image = source.image;
+ size = source.size;
+ if (needToResolveImage)
+ _resolveImage();
+ }
+
+ Widget build() {
+ return new Image(image: _resolvedImage, size: size, colorFilter: colorFilter);
+ }
+}
+
+class NetworkImage extends Component {
+ NetworkImage({ String src, this.size, this.colorFilter })
+ : src = src,
+ super(key: src);
+
+ final String src;
+ final Size size;
+ final sky.ColorFilter colorFilter;
+
+ Widget build() {
+ return new FutureImage(
+ image: image_cache.load(src),
+ size: size,
+ colorFilter: colorFilter
+ );
+ }
+}
+
+class AssetImage extends Component {
+ AssetImage({ String name, this.bundle, this.size, this.colorFilter })
+ : name = name,
+ super(key: name);
+
+ final String name;
+ final AssetBundle bundle;
+ final Size size;
+ final sky.ColorFilter colorFilter;
+
+ Widget build() {
+ return new FutureImage(
+ image: bundle.loadImage(name),
+ size: size,
+ colorFilter: colorFilter
+ );
+ }
+}
+
+class WidgetToRenderBoxAdapter extends LeafRenderObjectWrapper {
+ WidgetToRenderBoxAdapter(RenderBox renderBox)
+ : renderBox = renderBox,
+ super(key: renderBox.hashCode.toString()); // TODO(ianh): Find a way to uniquely identify the RenderBox rather than using hashCode, which could collide
+
+ final RenderBox renderBox;
+
+ RenderBox createNode() => this.renderBox;
+ RenderBox get root => super.root;
+
+ void syncRenderObject(Widget old) {
+ super.syncRenderObject(old);
+ if (old != null) {
+ assert(old is WidgetToRenderBoxAdapter);
+ assert(root == old.root);
+ }
+ }
+
+ void remove() {
+ RenderObjectWrapper ancestor = findAncestorRenderObjectWrapper();
+ assert(ancestor is RenderObjectWrapper);
+ assert(ancestor.root == root.parent);
+ ancestor.detachChildRoot(this);
+ super.remove();
+ }
+}
diff --git a/packages/flutter/lib/widgets/block_viewport.dart b/packages/flutter/lib/widgets/block_viewport.dart
new file mode 100644
index 0000000..65380a5
--- /dev/null
+++ b/packages/flutter/lib/widgets/block_viewport.dart
@@ -0,0 +1,319 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:collection';
+
+import 'package:sky/rendering/block.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/widgets/widget.dart';
+
+// return null if index is greater than index of last entry
+typedef Widget IndexedBuilder(int index);
+
+typedef void LayoutChangedCallback(
+ int firstVisibleChildIndex,
+ int visibleChildCount,
+ UnmodifiableListView<double> childOffsets,
+ bool didReachLastChild
+);
+
+class _Key {
+ const _Key(this.type, this.key);
+ factory _Key.fromWidget(Widget widget) => new _Key(widget.runtimeType, widget.key);
+ final Type type;
+ final String key;
+ bool operator ==(other) => other is _Key && other.type == type && other.key == key;
+ int get hashCode => 373 * 37 * type.hashCode + key.hashCode;
+}
+
+class BlockViewport extends RenderObjectWrapper {
+ BlockViewport({ this.builder, this.startOffset, this.token, this.onLayoutChanged, String key })
+ : super(key: key);
+
+ IndexedBuilder builder;
+ double startOffset;
+ Object token;
+ LayoutChangedCallback onLayoutChanged;
+
+ RenderBlockViewport get root => super.root;
+ RenderBlockViewport createNode() => new RenderBlockViewport();
+
+ Map<_Key, Widget> _childrenByKey = new Map<_Key, Widget>();
+
+ void walkChildren(WidgetTreeWalker walker) {
+ for (Widget child in _childrenByKey.values)
+ walker(child);
+ }
+
+ static const _omit = const Object(); // used as a slot when it's not yet time to attach the child
+
+ void insertChildRoot(RenderObjectWrapper child, dynamic slot) {
+ if (slot == _omit)
+ return;
+ final root = this.root; // TODO(ianh): Remove this once the analyzer is cleverer
+ assert(slot == null || slot is RenderObject);
+ assert(root is ContainerRenderObjectMixin);
+ root.add(child.root, before: slot);
+ assert(root == this.root); // TODO(ianh): Remove this once the analyzer is cleverer
+ }
+
+ void detachChildRoot(RenderObjectWrapper child) {
+ final root = this.root; // TODO(ianh): Remove this once the analyzer is cleverer
+ assert(root is ContainerRenderObjectMixin);
+ if (child.root.parent != root)
+ return; // probably had slot == _omit when inserted
+ root.remove(child.root);
+ assert(root == this.root); // TODO(ianh): Remove this once the analyzer is cleverer
+ }
+
+ void remove() {
+ for (Widget child in _childrenByKey.values) {
+ assert(child != null);
+ removeChild(child);
+ }
+ super.remove();
+ }
+
+ void didMount() {
+ root.callback = layout;
+ super.didMount();
+ }
+
+ void didUnmount() {
+ root.callback = null;
+ super.didUnmount();
+ }
+
+ // _offsets contains the offsets of each child from the top of the
+ // list up to the last one we've ever created, and the offset of the
+ // end of the last one. If there's no children, then the only offset
+ // is 0.0.
+ List<double> _offsets = <double>[0.0];
+ int _currentStartIndex = 0;
+ int _currentChildCount = 0;
+ bool _didReachLastChild = false;
+
+ int _findIndexForOffsetBeforeOrAt(double offset) {
+ int left = 0;
+ int right = _offsets.length - 1;
+ while (right >= left) {
+ int middle = left + ((right - left) ~/ 2);
+ if (_offsets[middle] < offset) {
+ left = middle + 1;
+ } else if (_offsets[middle] > offset) {
+ right = middle - 1;
+ } else {
+ return middle;
+ }
+ }
+ return right;
+ }
+
+ bool _dirty = true;
+
+ bool retainStatefulNodeIfPossible(BlockViewport newNode) {
+ retainStatefulRenderObjectWrapper(newNode);
+ if (startOffset != newNode.startOffset) {
+ _dirty = true;
+ startOffset = newNode.startOffset;
+ }
+ if (token != newNode.token || builder != newNode.builder) {
+ _dirty = true;
+ builder = newNode.builder;
+ token = newNode.token;
+ _offsets = <double>[0.0];
+ _didReachLastChild = false;
+ }
+ return true;
+ }
+
+ void syncRenderObject(BlockViewport old) {
+ super.syncRenderObject(old);
+ if (_dirty) {
+ root.markNeedsLayout();
+ } else {
+ if (_currentChildCount > 0) {
+ assert(_currentStartIndex >= 0);
+ assert(builder != null);
+ assert(root != null);
+ int lastIndex = _currentStartIndex + _currentChildCount - 1;
+ for (int index = _currentStartIndex; index <= lastIndex; index += 1) {
+ Widget widget = builder(index);
+ assert(widget != null);
+ assert(widget.key != null);
+ _Key key = new _Key.fromWidget(widget);
+ Widget oldWidget = _childrenByKey[key];
+ assert(oldWidget != null);
+ assert(oldWidget.root.parent == root);
+ widget = syncChild(widget, oldWidget, root.childAfter(oldWidget.root));
+ assert(widget != null);
+ _childrenByKey[key] = widget;
+ }
+ }
+ }
+ }
+
+ Widget _getWidget(int index, BoxConstraints innerConstraints) {
+ LayoutCallbackBuilderHandle handle = enterLayoutCallbackBuilder();
+ try {
+ assert(index >= 0);
+ Widget widget = builder == null ? null : builder(index);
+ if (widget == null)
+ return null;
+ assert(widget.key != null); // items in lists must have keys
+ final _Key key = new _Key.fromWidget(widget);
+ Widget oldWidget = _childrenByKey[key];
+ widget = syncChild(widget, oldWidget, _omit);
+ if (oldWidget != null)
+ _childrenByKey[key] = widget;
+ if (index >= _offsets.length - 1) {
+ assert(index == _offsets.length - 1);
+ final double widgetStartOffset = _offsets[index];
+ RenderBox widgetRoot = widget.root;
+ assert(widgetRoot is RenderBox);
+ final double widgetEndOffset = widgetStartOffset + widgetRoot.getMaxIntrinsicHeight(innerConstraints);
+ _offsets.add(widgetEndOffset);
+ }
+ return widget;
+ } finally {
+ exitLayoutCallbackBuilder(handle);
+ }
+ }
+
+ void layout(BoxConstraints constraints) {
+ if (!_dirty)
+ return;
+ _dirty = false;
+
+ Map<_Key, Widget> newChildren = new Map<_Key, Widget>();
+ Map<int, Widget> builtChildren = new Map<int, Widget>();
+
+ final double height = root.size.height;
+ final double endOffset = startOffset + height;
+ BoxConstraints innerConstraints = new BoxConstraints.tightFor(width: constraints.constrainWidth());
+
+ int startIndex;
+ bool haveChildren;
+ if (startOffset <= 0.0) {
+ startIndex = 0;
+ if (_offsets.length > 1) {
+ haveChildren = true;
+ } else {
+ Widget widget = _getWidget(startIndex, innerConstraints);
+ if (widget != null) {
+ newChildren[new _Key.fromWidget(widget)] = widget;
+ builtChildren[startIndex] = widget;
+ haveChildren = true;
+ } else {
+ haveChildren = false;
+ _didReachLastChild = true;
+ }
+ }
+ } else {
+ startIndex = _findIndexForOffsetBeforeOrAt(startOffset);
+ if (startIndex == _offsets.length - 1) {
+ // We don't have an offset on the list that is beyond the start offset.
+ assert(_offsets.last <= startOffset);
+ // Fill the list until this isn't true or until we know that the
+ // list is complete (and thus we are overscrolled).
+ while (true) {
+ Widget widget = _getWidget(startIndex, innerConstraints);
+ if (widget == null) {
+ _didReachLastChild = true;
+ break;
+ }
+ _Key widgetKey = new _Key.fromWidget(widget);
+ if (_offsets.last > startOffset) {
+ newChildren[widgetKey] = widget;
+ builtChildren[startIndex] = widget;
+ break;
+ }
+ if (!_childrenByKey.containsKey(widgetKey)) {
+ // we don't actually need this one, release it
+ syncChild(null, widget, null);
+ } // else we'll get rid of it later, when we remove old children
+ startIndex += 1;
+ assert(startIndex == _offsets.length - 1);
+ }
+ if (_offsets.last > startOffset) {
+ // If we're here, we have at least one child, so our list has
+ // at least two offsets, the top of the child and the bottom
+ // of the child.
+ assert(_offsets.length >= 2);
+ assert(startIndex == _offsets.length - 2);
+ haveChildren = true;
+ } else {
+ // If we're here, there are no children to show.
+ haveChildren = false;
+ }
+ } else {
+ haveChildren = true;
+ }
+ }
+ assert(haveChildren != null);
+ assert(haveChildren || _didReachLastChild);
+
+ assert(startIndex >= 0);
+ assert(startIndex < _offsets.length);
+
+ int index = startIndex;
+ if (haveChildren) {
+ // Build all the widgets we need.
+ root.startOffset = _offsets[index] - startOffset;
+ while (_offsets[index] < endOffset) {
+ if (!builtChildren.containsKey(index)) {
+ Widget widget = _getWidget(index, innerConstraints);
+ if (widget == null) {
+ _didReachLastChild = true;
+ break;
+ }
+ newChildren[new _Key.fromWidget(widget)] = widget;
+ builtChildren[index] = widget;
+ }
+ assert(builtChildren[index] != null);
+ index += 1;
+ }
+ }
+
+ // Remove any old children.
+ for (_Key oldChildKey in _childrenByKey.keys) {
+ if (!newChildren.containsKey(oldChildKey))
+ syncChild(null, _childrenByKey[oldChildKey], null); // calls detachChildRoot()
+ }
+
+ if (haveChildren) {
+ // Place all our children in our RenderObject.
+ // All the children we are placing are in builtChildren and newChildren.
+ // We will walk them backwards so we can set the siblings at the same time.
+ RenderBox nextSibling = null;
+ while (index > startIndex) {
+ index -= 1;
+ Widget widget = builtChildren[index];
+ if (widget.root.parent == root) {
+ root.move(widget.root, before: nextSibling);
+ } else {
+ assert(widget.root.parent == null);
+ root.add(widget.root, before: nextSibling);
+ }
+ widget.updateSlot(nextSibling);
+ nextSibling = widget.root;
+ }
+ }
+
+ _childrenByKey = newChildren;
+ _currentStartIndex = startIndex;
+ _currentChildCount = _childrenByKey.length;
+
+ if (onLayoutChanged != null) {
+ onLayoutChanged(
+ _currentStartIndex,
+ _currentChildCount,
+ new UnmodifiableListView<double>(_offsets),
+ _didReachLastChild
+ );
+ }
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/button_base.dart b/packages/flutter/lib/widgets/button_base.dart
new file mode 100644
index 0000000..bcd0ac7
--- /dev/null
+++ b/packages/flutter/lib/widgets/button_base.dart
@@ -0,0 +1,44 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/widgets/basic.dart';
+
+abstract class ButtonBase extends StatefulComponent {
+
+ ButtonBase({ String key, this.highlight: false }) : super(key: key);
+
+ bool highlight;
+
+ void syncFields(ButtonBase source) {
+ highlight = source.highlight;
+ }
+
+ void _handlePointerDown(_) {
+ setState(() {
+ highlight = true;
+ });
+ }
+ void _handlePointerUp(_) {
+ setState(() {
+ highlight = false;
+ });
+ }
+ void _handlePointerCancel(_) {
+ setState(() {
+ highlight = false;
+ });
+ }
+
+ Widget build() {
+ return new Listener(
+ child: buildContent(),
+ onPointerDown: _handlePointerDown,
+ onPointerUp: _handlePointerUp,
+ onPointerCancel: _handlePointerCancel
+ );
+ }
+
+ Widget buildContent();
+
+}
diff --git a/packages/flutter/lib/widgets/card.dart b/packages/flutter/lib/widgets/card.dart
new file mode 100644
index 0000000..4d0e3ab
--- /dev/null
+++ b/packages/flutter/lib/widgets/card.dart
@@ -0,0 +1,32 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/material.dart';
+
+/// A material design card
+///
+/// <https://www.google.com/design/spec/components/cards.html>
+class Card extends Component {
+ Card({ String key, this.child, this.color }) : super(key: key);
+
+ final Widget child;
+ final Color color;
+
+ Widget build() {
+ return new Container(
+ margin: const EdgeDims.all(4.0),
+ child: new Material(
+ color: color,
+ type: MaterialType.card,
+ level: 2,
+ child: new ClipRRect(
+ xRadius: edges[MaterialType.card],
+ yRadius: edges[MaterialType.card],
+ child: child
+ )
+ )
+ );
+ }
+}
diff --git a/packages/flutter/lib/widgets/checkbox.dart b/packages/flutter/lib/widgets/checkbox.dart
new file mode 100644
index 0000000..78d496a
--- /dev/null
+++ b/packages/flutter/lib/widgets/checkbox.dart
@@ -0,0 +1,100 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/toggleable.dart';
+
+export 'toggleable.dart' show ValueChanged;
+
+const double _kMidpoint = 0.5;
+const sky.Color _kLightUncheckedColor = const sky.Color(0x8A000000);
+const sky.Color _kDarkUncheckedColor = const sky.Color(0xB2FFFFFF);
+const double _kEdgeSize = 20.0;
+const double _kEdgeRadius = 1.0;
+
+/// A material design checkbox
+///
+/// The checkbox itself does not maintain any state. Instead, when the state of
+/// the checkbox changes, the component calls the `onChange` callback. Most
+/// components that use a checkbox will listen for the `onChange` callback and
+/// rebuild the checkbox with a new `value` to update the visual appearance of
+/// the checkbox.
+///
+/// <https://www.google.com/design/spec/components/lists-controls.html#lists-controls-types-of-list-controls>
+class Checkbox extends Toggleable {
+
+ /// Constructs a checkbox
+ ///
+ /// * `value` determines whether the checkbox is checked.
+ /// * `onChanged` is called whenever the state of the checkbox should change.
+ Checkbox({
+ String key,
+ bool value,
+ ValueChanged onChanged
+ }) : super(key: key, value: value, onChanged: onChanged);
+
+ Size get size => const Size(_kEdgeSize + 2.0, _kEdgeSize + 2.0);
+
+ void customPaintCallback(sky.Canvas canvas, Size size) {
+ ThemeData themeData = Theme.of(this);
+ Color uncheckedColor = themeData.brightness == ThemeBrightness.light ? _kLightUncheckedColor : _kDarkUncheckedColor;
+
+ // Choose a color between grey and the theme color
+ sky.Paint paint = new sky.Paint()..strokeWidth = 2.0
+ ..color = uncheckedColor;
+
+ // The rrect contracts slightly during the animation
+ double inset = 2.0 - (position.value - _kMidpoint).abs() * 2.0;
+ sky.Rect rect = new sky.Rect.fromLTRB(inset, inset, _kEdgeSize - inset, _kEdgeSize - inset);
+ sky.RRect rrect = new sky.RRect()..setRectXY(rect, _kEdgeRadius, _kEdgeRadius);
+
+ // Outline of the empty rrect
+ paint.setStyle(sky.PaintingStyle.stroke);
+ canvas.drawRRect(rrect, paint);
+
+ // Radial gradient that changes size
+ if (position.value > 0) {
+ paint.setStyle(sky.PaintingStyle.fill);
+ paint.setShader(
+ new sky.Gradient.radial(
+ new Point(_kEdgeSize / 2.0, _kEdgeSize / 2.0),
+ _kEdgeSize * (_kMidpoint - position.value) * 8.0,
+ [const sky.Color(0x00000000), uncheckedColor]
+ )
+ );
+ canvas.drawRRect(rrect, paint);
+ }
+
+ if (position.value > _kMidpoint) {
+ double t = (position.value - _kMidpoint) / (1.0 - _kMidpoint);
+
+ // Solid filled rrect
+ paint.setStyle(sky.PaintingStyle.strokeAndFill);
+ paint.color = new Color.fromARGB((t * 255).floor(),
+ themeData.accentColor.red,
+ themeData.accentColor.green,
+ themeData.accentColor.blue);
+ canvas.drawRRect(rrect, paint);
+
+ // White inner check
+ paint.color = const sky.Color(0xFFFFFFFF);
+ paint.setStyle(sky.PaintingStyle.stroke);
+ sky.Path path = new sky.Path();
+ sky.Point start = new sky.Point(_kEdgeSize * 0.2, _kEdgeSize * 0.5);
+ sky.Point mid = new sky.Point(_kEdgeSize * 0.4, _kEdgeSize * 0.7);
+ sky.Point end = new sky.Point(_kEdgeSize * 0.8, _kEdgeSize * 0.3);
+ Point lerp(Point p1, Point p2, double t)
+ => new Point(p1.x * (1.0 - t) + p2.x * t, p1.y * (1.0 - t) + p2.y * t);
+ sky.Point drawStart = lerp(start, mid, 1.0 - t);
+ sky.Point drawEnd = lerp(mid, end, t);
+ path.moveTo(drawStart.x, drawStart.y);
+ path.lineTo(mid.x, mid.y);
+ path.lineTo(drawEnd.x, drawEnd.y);
+ canvas.drawPath(path, paint);
+ }
+ }
+}
diff --git a/packages/flutter/lib/widgets/default_text_style.dart b/packages/flutter/lib/widgets/default_text_style.dart
new file mode 100644
index 0000000..840dc64
--- /dev/null
+++ b/packages/flutter/lib/widgets/default_text_style.dart
@@ -0,0 +1,29 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/widget.dart';
+
+class DefaultTextStyle extends Inherited {
+
+ DefaultTextStyle({
+ String key,
+ this.style,
+ Widget child
+ }) : super(key: key, child: child) {
+ assert(style != null);
+ assert(child != null);
+ }
+
+ final TextStyle style;
+
+ static TextStyle of(Component component) {
+ DefaultTextStyle result = component.inheritedOfType(DefaultTextStyle);
+ return result == null ? null : result.style;
+ }
+
+ bool syncShouldNotify(DefaultTextStyle old) => style != old.style;
+
+}
diff --git a/packages/flutter/lib/widgets/dialog.dart b/packages/flutter/lib/widgets/dialog.dart
new file mode 100644
index 0000000..4328190
--- /dev/null
+++ b/packages/flutter/lib/widgets/dialog.dart
@@ -0,0 +1,100 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/default_text_style.dart';
+import 'package:sky/widgets/material.dart';
+import 'package:sky/widgets/scrollable_viewport.dart';
+import 'package:sky/widgets/theme.dart';
+
+/// A material design dialog
+///
+/// <https://www.google.com/design/spec/components/dialogs.html>
+class Dialog extends Component {
+ Dialog({
+ String key,
+ this.title,
+ this.content,
+ this.actions,
+ this.onDismiss
+ }) : super(key: key);
+
+ /// The (optional) title of the dialog is displayed in a large font at the top
+ /// of the dialog.
+ final Widget title;
+
+ /// The (optional) content of the dialog is displayed in the center of the
+ /// dialog in a lighter font.
+ final Widget content;
+
+ /// The (optional) set of actions that are displayed at the bottom of the
+ /// dialog.
+ final List<Widget> actions;
+
+ /// An (optional) callback that is called when the dialog is dismissed.
+ final Function onDismiss;
+
+ Color get _color {
+ switch (Theme.of(this).brightness) {
+ case ThemeBrightness.light:
+ return colors.white;
+ case ThemeBrightness.dark:
+ return colors.Grey[800];
+ }
+ }
+
+ Widget build() {
+ Container mask = new Container(
+ decoration: const BoxDecoration(
+ backgroundColor: const Color(0x7F000000)));
+
+ List<Widget> children = new List<Widget>();
+
+ if (title != null) {
+ children.add(new Padding(
+ padding: new EdgeDims(24.0, 24.0, content == null ? 20.0 : 0.0, 24.0),
+ child: new DefaultTextStyle(
+ style: Theme.of(this).text.title,
+ child: title
+ )
+ ));
+ }
+
+ if (content != null) {
+ children.add(new Padding(
+ padding: const EdgeDims(20.0, 24.0, 24.0, 24.0),
+ child: new DefaultTextStyle(
+ style: Theme.of(this).text.subhead,
+ child: content
+ )
+ ));
+ }
+
+ if (actions != null)
+ children.add(new Flex(actions, justifyContent: FlexJustifyContent.end));
+
+ return new Stack([
+ new Listener(
+ child: mask,
+ onGestureTap: (_) => onDismiss()
+ ),
+ new Center(
+ child: new Container(
+ margin: new EdgeDims.symmetric(horizontal: 40.0, vertical: 24.0),
+ child: new ConstrainedBox(
+ constraints: new BoxConstraints(minWidth: 280.0),
+ child: new Material(
+ level: 4,
+ color: _color,
+ child: new ShrinkWrapWidth(
+ child: new ScrollableBlock(children)
+ )
+ )
+ )
+ )
+ )
+ ]);
+ }
+}
diff --git a/packages/flutter/lib/widgets/dismissable.dart b/packages/flutter/lib/widgets/dismissable.dart
new file mode 100644
index 0000000..0c4363e
--- /dev/null
+++ b/packages/flutter/lib/widgets/dismissable.dart
@@ -0,0 +1,157 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/animation/animation_performance.dart';
+import 'package:sky/widgets/animated_component.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/widget.dart';
+import 'package:vector_math/vector_math.dart';
+
+const Duration _kCardDismissFadeout = const Duration(milliseconds: 300);
+const double _kMinFlingVelocity = 700.0;
+const double _kMinFlingVelocityDelta = 400.0;
+const double _kDismissCardThreshold = 0.6;
+
+typedef void DismissedCallback();
+
+class Dismissable extends AnimatedComponent {
+
+ Dismissable({
+ String key,
+ this.child,
+ this.onDismissed
+ // TODO(hansmuller): direction
+ }) : super(key: key);
+
+ Widget child;
+ DismissedCallback onDismissed;
+
+ AnimatedType<Point> _position;
+ AnimatedType<double> _opacity;
+ AnimationPerformance _performance;
+
+ double _width;
+ double _dragX = 0.0;
+ bool _dragUnderway = false;
+
+ void initState() {
+ _position = new AnimatedType<Point>(Point.origin);
+ _opacity = new AnimatedType<double>(1.0, end: 0.0);
+ _performance = new AnimationPerformance()
+ ..duration = _kCardDismissFadeout
+ ..variable = new AnimatedList([_position, _opacity])
+ ..addListener(_handleAnimationProgressChanged);
+ watch(_performance);
+ }
+
+ void syncFields(Dismissable source) {
+ child = source.child;
+ onDismissed = source.onDismissed;
+ super.syncFields(source);
+ }
+
+ Point get _activeCardDragEndPoint {
+ assert(_width != null);
+ return new Point(_dragX.sign * _width * _kDismissCardThreshold, 0.0);
+ }
+
+ bool get _isActive {
+ return _width != null && (_dragUnderway || _performance.isAnimating);
+ }
+
+ void _maybeCallOnDismissed() {
+ if (onDismissed != null)
+ onDismissed();
+ }
+
+ void _handleAnimationProgressChanged() {
+ setState(() {
+ if (_performance.isCompleted && !_dragUnderway)
+ _maybeCallOnDismissed();
+ });
+ }
+
+ void _handleSizeChanged(Size newSize) {
+ _width = newSize.width;
+ _position.end = _activeCardDragEndPoint;
+ }
+
+ void _handlePointerDown(sky.PointerEvent event) {
+ setState(() {
+ _dragUnderway = true;
+ _dragX = 0.0;
+ _performance.progress = 0.0;
+ });
+ }
+
+ void _handlePointerMove(sky.PointerEvent event) {
+ if (!_isActive)
+ return;
+
+ double oldDragX = _dragX;
+ _dragX += event.dx;
+ setState(() {
+ if (!_performance.isAnimating) {
+ if (oldDragX.sign != _dragX.sign)
+ _position.end = _activeCardDragEndPoint;
+ _performance.progress = _dragX.abs() / (_width * _kDismissCardThreshold);
+ }
+ });
+ }
+
+ void _handlePointerUpOrCancel(_) {
+ if (!_isActive)
+ return;
+
+ setState(() {
+ _dragUnderway = false;
+ if (_performance.isCompleted)
+ _maybeCallOnDismissed();
+ else if (!_performance.isAnimating)
+ _performance.progress = 0.0;
+ });
+ }
+
+ bool _isHorizontalFlingGesture(sky.GestureEvent event) {
+ double vx = event.velocityX.abs();
+ double vy = event.velocityY.abs();
+ return vx - vy > _kMinFlingVelocityDelta && vx > _kMinFlingVelocity;
+ }
+
+ void _handleFlingStart(sky.GestureEvent event) {
+ if (!_isActive)
+ return;
+
+ if (_isHorizontalFlingGesture(event)) {
+ _dragUnderway = false;
+ _dragX = event.velocityX.sign;
+ _position.end = _activeCardDragEndPoint;
+ _performance.fling(velocity: event.velocityX.abs() / _width);
+ }
+ }
+
+ Widget build() {
+ Matrix4 transform = new Matrix4.identity();
+ transform.translate(_position.value.x, _position.value.y);
+ return new Listener(
+ onPointerDown: _handlePointerDown,
+ onPointerMove: _handlePointerMove,
+ onPointerUp: _handlePointerUpOrCancel,
+ onPointerCancel: _handlePointerUpOrCancel,
+ onGestureFlingStart: _handleFlingStart,
+ child: new SizeObserver(
+ callback: _handleSizeChanged,
+ child: new Opacity(
+ opacity: _opacity.value,
+ child: new Transform(
+ transform: transform,
+ child: child
+ )
+ )
+ )
+ );
+ }
+}
diff --git a/packages/flutter/lib/widgets/drawer.dart b/packages/flutter/lib/widgets/drawer.dart
new file mode 100644
index 0000000..933f942
--- /dev/null
+++ b/packages/flutter/lib/widgets/drawer.dart
@@ -0,0 +1,183 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/animation/animation_performance.dart';
+import 'package:sky/animation/curves.dart';
+import 'package:sky/theme/shadows.dart';
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/widgets/animated_component.dart';
+import 'package:sky/widgets/animation_builder.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/navigator.dart';
+import 'package:sky/widgets/scrollable_viewport.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:vector_math/vector_math.dart';
+
+// TODO(eseidel): Draw width should vary based on device size:
+// http://www.google.com/design/spec/layout/structure.html#structure-side-nav
+
+// Mobile:
+// Width = Screen width − 56 dp
+// Maximum width: 320dp
+// Maximum width applies only when using a left nav. When using a right nav,
+// the panel can cover the full width of the screen.
+
+// Desktop/Tablet:
+// Maximum width for a left nav is 400dp.
+// The right nav can vary depending on content.
+
+const double _kWidth = 304.0;
+const double _kMinFlingVelocity = 1.2;
+const Duration _kBaseSettleDuration = const Duration(milliseconds: 246);
+// TODO(mpcomplete): The curve must be linear if we want the drawer to track
+// the user's finger. Odeon remedies this by attaching spring forces to the
+// initial timeline when animating (so it doesn't look linear).
+const Point _kOpenPosition = Point.origin;
+const Point _kClosedPosition = const Point(-_kWidth, 0.0);
+const Curve _kAnimationCurve = linear;
+
+typedef void DrawerStatusChangeHandler (bool showing);
+
+enum DrawerStatus {
+ active,
+ inactive,
+}
+
+typedef void DrawerStatusChangedCallback(DrawerStatus status);
+
+class Drawer extends AnimatedComponent {
+ Drawer({
+ String key,
+ this.children,
+ this.showing: false,
+ this.level: 0,
+ this.onStatusChanged,
+ this.navigator
+ }) : super(key: key);
+
+ List<Widget> children;
+ bool showing;
+ int level;
+ DrawerStatusChangedCallback onStatusChanged;
+ Navigator navigator;
+
+ AnimatedType<Point> _position;
+ AnimatedColor _maskColor;
+ AnimationPerformance _performance;
+
+ void initState() {
+ _position = new AnimatedType<Point>(_kClosedPosition, end: _kOpenPosition, curve: _kAnimationCurve);
+ _maskColor = new AnimatedColor(colors.transparent, end: const Color(0x7F000000));
+ _performance = new AnimationPerformance()
+ ..duration = _kBaseSettleDuration
+ ..variable = new AnimatedList([_position, _maskColor])
+ ..addListener(_checkForStateChanged);
+ watch(_performance);
+ if (showing)
+ _show();
+ }
+
+ void syncFields(Drawer source) {
+ children = source.children;
+ level = source.level;
+ navigator = source.navigator;
+ if (showing != source.showing) {
+ showing = source.showing;
+ showing ? _show() : _hide();
+ }
+ onStatusChanged = source.onStatusChanged;
+ super.syncFields(source);
+ }
+
+ void _show() {
+ if (navigator != null)
+ navigator.pushState(this, (_) => _performance.reverse());
+ _performance.play();
+ }
+
+ void _hide() {
+ _performance.reverse();
+ }
+
+ Widget build() {
+ var mask = new Listener(
+ child: new Container(
+ decoration: new BoxDecoration(backgroundColor: _maskColor.value)
+ ),
+ onGestureTap: handleMaskTap
+ );
+
+ Matrix4 transform = new Matrix4.identity();
+ transform.translate(_position.value.x, _position.value.y);
+ Widget content = new Transform(
+ transform: transform,
+ child: new Container(
+ decoration: new BoxDecoration(
+ backgroundColor: Theme.of(this).canvasColor,
+ boxShadow: shadows[level]),
+ width: _kWidth,
+ child: new ScrollableBlock(children)
+ ));
+
+ return new Listener(
+ child: new Stack([ mask, content ]),
+ onPointerDown: handlePointerDown,
+ onPointerMove: handlePointerMove,
+ onPointerUp: handlePointerUp,
+ onPointerCancel: handlePointerCancel,
+ onGestureFlingStart: handleFlingStart
+ );
+ }
+
+ double get xPosition => _position.value.x;
+
+ DrawerStatus _lastStatus;
+ void _checkForStateChanged() {
+ DrawerStatus status = _status;
+ if (_lastStatus != null && status != _lastStatus) {
+ if (status == DrawerStatus.inactive &&
+ navigator != null &&
+ navigator.currentRoute.key == this)
+ navigator.pop();
+ if (onStatusChanged != null)
+ onStatusChanged(status);
+ }
+ _lastStatus = status;
+ }
+
+ DrawerStatus get _status => _performance.isDismissed ? DrawerStatus.inactive : DrawerStatus.active;
+ bool get _isMostlyClosed => xPosition <= -_kWidth/2;
+
+ void _settle() => _isMostlyClosed ? _performance.reverse() : _performance.play();
+
+ void handleMaskTap(_) => _performance.reverse();
+
+ // TODO(mpcomplete): Figure out how to generalize these handlers on a
+ // "PannableThingy" interface.
+ void handlePointerDown(_) => _performance.stop();
+
+ void handlePointerMove(sky.PointerEvent event) {
+ if (_performance.isAnimating)
+ return;
+ _performance.progress += event.dx / _kWidth;
+ }
+
+ void handlePointerUp(_) {
+ if (!_performance.isAnimating)
+ _settle();
+ }
+
+ void handlePointerCancel(_) {
+ if (!_performance.isAnimating)
+ _settle();
+ }
+
+ void handleFlingStart(event) {
+ double velocityX = event.velocityX / _kWidth;
+ if (velocityX.abs() >= _kMinFlingVelocity)
+ _performance.fling(velocity: velocityX);
+ }
+}
diff --git a/packages/flutter/lib/widgets/drawer_divider.dart b/packages/flutter/lib/widgets/drawer_divider.dart
new file mode 100644
index 0000000..3b055bc
--- /dev/null
+++ b/packages/flutter/lib/widgets/drawer_divider.dart
@@ -0,0 +1,24 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/theme.dart';
+
+class DrawerDivider extends Component {
+ DrawerDivider({ String key }) : super(key: key);
+
+ Widget build() {
+ return new Container(
+ height: 0.0,
+ decoration: new BoxDecoration(
+ border: new Border(
+ bottom: new BorderSide(
+ color: Theme.of(this).dividerColor
+ )
+ )
+ ),
+ margin: const EdgeDims.symmetric(vertical: 8.0)
+ );
+ }
+}
diff --git a/packages/flutter/lib/widgets/drawer_header.dart b/packages/flutter/lib/widgets/drawer_header.dart
new file mode 100644
index 0000000..4fb33d0
--- /dev/null
+++ b/packages/flutter/lib/widgets/drawer_header.dart
@@ -0,0 +1,47 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/theme/view_configuration.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/default_text_style.dart';
+import 'package:sky/widgets/theme.dart';
+
+// TODO(jackson): This class should usually render the user's
+// preferred banner image rather than a solid background
+
+class DrawerHeader extends Component {
+
+ DrawerHeader({ String key, this.children }) : super(key: key);
+
+ final List<Widget> children;
+
+ Widget build() {
+ return new Container(
+ height: kStatusBarHeight + kMaterialDrawerHeight,
+ decoration: new BoxDecoration(
+ backgroundColor: Theme.of(this).cardColor,
+ border: const Border(
+ bottom: const BorderSide(
+ color: const Color(0xFFD1D9E1),
+ width: 1.0
+ )
+ )
+ ),
+ padding: const EdgeDims.only(bottom: 7.0),
+ margin: const EdgeDims.only(bottom: 8.0),
+ child: new Flex([
+ new Flexible(child: new Container()),
+ new Container(
+ padding: const EdgeDims.symmetric(horizontal: 16.0),
+ child: new DefaultTextStyle(
+ style: Theme.of(this).text.body2,
+ child: new Flex(children, direction: FlexDirection.horizontal)
+ )
+ )],
+ direction: FlexDirection.vertical
+ )
+ );
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/drawer_item.dart b/packages/flutter/lib/widgets/drawer_item.dart
new file mode 100644
index 0000000..d807bd8
--- /dev/null
+++ b/packages/flutter/lib/widgets/drawer_item.dart
@@ -0,0 +1,96 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/button_base.dart';
+import 'package:sky/widgets/default_text_style.dart';
+import 'package:sky/widgets/icon.dart';
+import 'package:sky/widgets/ink_well.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/widget.dart';
+
+class DrawerItem extends ButtonBase {
+ DrawerItem({ String key, this.icon, this.children, this.onPressed, this.selected: false })
+ : super(key: key);
+
+ String icon;
+ List<Widget> children;
+ Function onPressed;
+ bool selected;
+
+ void syncFields(DrawerItem source) {
+ icon = source.icon;
+ children = source.children;
+ onPressed = source.onPressed;
+ selected = source.selected;
+ super.syncFields(source);
+ }
+
+ TextStyle _getTextStyle(ThemeData themeData) {
+ TextStyle result = themeData.text.body2;
+ if (selected)
+ result = result.copyWith(color: themeData.primaryColor);
+ return result;
+ }
+
+ Color _getBackgroundColor(ThemeData themeData) {
+ if (highlight)
+ return themeData.highlightColor;
+ if (selected)
+ return themeData.selectedColor;
+ return colors.transparent;
+ }
+
+ sky.ColorFilter _getColorFilter(ThemeData themeData) {
+ if (selected)
+ return new sky.ColorFilter.mode(themeData.primaryColor, sky.TransferMode.srcATop);
+ return new sky.ColorFilter.mode(const Color(0x73000000), sky.TransferMode.dstIn);
+ }
+
+ Widget buildContent() {
+ ThemeData themeData = Theme.of(this);
+
+ List<Widget> flexChildren = new List<Widget>();
+ if (icon != null) {
+ flexChildren.add(
+ new Padding(
+ padding: const EdgeDims.symmetric(horizontal: 16.0),
+ child: new Icon(
+ type: icon,
+ size: 24,
+ colorFilter: _getColorFilter(themeData))
+ )
+ );
+ }
+ flexChildren.add(
+ new Flexible(
+ child: new Padding(
+ padding: const EdgeDims.symmetric(horizontal: 16.0),
+ child: new DefaultTextStyle(
+ style: _getTextStyle(themeData),
+ child: new Flex(children, direction: FlexDirection.horizontal)
+ )
+ )
+ )
+ );
+
+ return new Listener(
+ onGestureTap: (_) {
+ if (onPressed != null)
+ onPressed();
+ },
+ child: new Container(
+ height: 48.0,
+ decoration: new BoxDecoration(backgroundColor: _getBackgroundColor(themeData)),
+ child: new InkWell(
+ child: new Flex(flexChildren)
+ )
+ )
+ );
+ }
+}
diff --git a/packages/flutter/lib/widgets/fixed_height_scrollable.dart b/packages/flutter/lib/widgets/fixed_height_scrollable.dart
new file mode 100644
index 0000000..d2ba07f
--- /dev/null
+++ b/packages/flutter/lib/widgets/fixed_height_scrollable.dart
@@ -0,0 +1,106 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+
+import 'package:sky/animation/scroll_behavior.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/scrollable.dart';
+
+abstract class FixedHeightScrollable extends Scrollable {
+
+ FixedHeightScrollable({ String key, this.itemHeight, this.padding })
+ : super(key: key) {
+ assert(itemHeight != null);
+ }
+
+ EdgeDims padding;
+ double itemHeight;
+
+ /// Subclasses must implement `get itemCount` to tell FixedHeightScrollable
+ /// how many items there are in the list.
+ int get itemCount;
+ int _previousItemCount;
+
+ void syncFields(FixedHeightScrollable source) {
+ padding = source.padding;
+ itemHeight = source.itemHeight;
+ super.syncFields(source);
+ }
+
+ ScrollBehavior createScrollBehavior() => new OverscrollBehavior();
+ OverscrollBehavior get scrollBehavior => super.scrollBehavior;
+
+ double _height;
+ void _handleSizeChanged(Size newSize) {
+ setState(() {
+ _height = newSize.height;
+ scrollBehavior.containerSize = _height;
+ });
+ }
+
+ void _updateContentsHeight() {
+ double contentsHeight = itemHeight * itemCount;
+ if (padding != null)
+ contentsHeight += padding.top + padding.bottom;
+ scrollBehavior.contentsSize = contentsHeight;
+ }
+
+ void _updateScrollOffset() {
+ if (scrollOffset > scrollBehavior.maxScrollOffset)
+ settleScrollOffset();
+ }
+
+ Widget buildContent() {
+ if (itemCount != _previousItemCount) {
+ _previousItemCount = itemCount;
+ _updateContentsHeight();
+ _updateScrollOffset();
+ }
+
+ int itemShowIndex = 0;
+ int itemShowCount = 0;
+ double offsetY = 0.0;
+ if (_height != null && _height > 0.0) {
+ if (scrollOffset < 0.0) {
+ double visibleHeight = _height + scrollOffset;
+ itemShowCount = (visibleHeight / itemHeight).round() + 1;
+ offsetY = scrollOffset;
+ } else {
+ itemShowCount = (_height / itemHeight).ceil();
+ double alignmentDelta = -scrollOffset % itemHeight;
+ double drawStart;
+ if (alignmentDelta != 0.0) {
+ alignmentDelta -= itemHeight;
+ itemShowCount += 1;
+ drawStart = scrollOffset + alignmentDelta;
+ offsetY = -alignmentDelta;
+ } else {
+ drawStart = scrollOffset;
+ }
+ itemShowIndex = math.max(0, (drawStart / itemHeight).floor());
+ }
+ }
+
+ List<Widget> items = buildItems(itemShowIndex, itemShowCount);
+ assert(items.every((item) => item.key != null));
+
+ // TODO(ianh): Refactor this so that it does the building in the
+ // same frame as the size observing, similar to BlockViewport, but
+ // keeping the fixed-height optimisations.
+ return new SizeObserver(
+ callback: _handleSizeChanged,
+ child: new Viewport(
+ offset: offsetY,
+ child: new Container(
+ padding: padding,
+ child: new Block(items)
+ )
+ )
+ );
+ }
+
+ List<Widget> buildItems(int start, int count);
+
+}
diff --git a/packages/flutter/lib/widgets/flat_button.dart b/packages/flutter/lib/widgets/flat_button.dart
new file mode 100644
index 0000000..4b5d39b
--- /dev/null
+++ b/packages/flutter/lib/widgets/flat_button.dart
@@ -0,0 +1,33 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/theme/colors.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/material_button.dart';
+import 'package:sky/widgets/theme.dart';
+
+class FlatButton extends MaterialButton {
+ FlatButton({
+ String key,
+ Widget child,
+ bool enabled: true,
+ Function onPressed
+ }) : super(key: key,
+ child: child,
+ enabled: enabled,
+ onPressed: onPressed);
+
+ Color get color {
+ if (!enabled || !highlight)
+ return null;
+ switch (Theme.of(this).brightness) {
+ case ThemeBrightness.light:
+ return Grey[400];
+ case ThemeBrightness.dark:
+ return Grey[200];
+ }
+ }
+
+ int get level => 0;
+}
diff --git a/packages/flutter/lib/widgets/floating_action_button.dart b/packages/flutter/lib/widgets/floating_action_button.dart
new file mode 100644
index 0000000..a10d503
--- /dev/null
+++ b/packages/flutter/lib/widgets/floating_action_button.dart
@@ -0,0 +1,72 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/button_base.dart';
+import 'package:sky/widgets/icon.dart';
+import 'package:sky/widgets/ink_well.dart';
+import 'package:sky/widgets/material.dart';
+import 'package:sky/widgets/theme.dart';
+
+// TODO(eseidel): This needs to change based on device size?
+// http://www.google.com/design/spec/layout/metrics-keylines.html#metrics-keylines-keylines-spacing
+const double _kSize = 56.0;
+
+class FloatingActionButton extends ButtonBase {
+
+ FloatingActionButton({
+ String key,
+ this.child,
+ this.backgroundColor,
+ this.onPressed
+ }) : super(key: key);
+
+ Widget child;
+ Color backgroundColor;
+ Function onPressed;
+
+ void syncFields(FloatingActionButton source) {
+ super.syncFields(source);
+ child = source.child;
+ backgroundColor = source.backgroundColor;
+ onPressed = source.onPressed;
+ }
+
+ Widget buildContent() {
+ IconThemeColor iconThemeColor = IconThemeColor.white;
+ Color materialColor = backgroundColor;
+ if (materialColor == null) {
+ ThemeData themeData = Theme.of(this);
+ materialColor = themeData.accentColor;
+ iconThemeColor = themeData.accentColorBrightness == ThemeBrightness.dark ? IconThemeColor.white : IconThemeColor.black;
+ }
+
+ return new Material(
+ color: materialColor,
+ type: MaterialType.circle,
+ level: highlight ? 3 : 2,
+ child: new ClipOval(
+ child: new Listener(
+ onGestureTap: (_) {
+ if (onPressed != null)
+ onPressed();
+ },
+ child: new Container(
+ width: _kSize,
+ height: _kSize,
+ child: new InkWell(
+ child: new Center(
+ child: new IconTheme(
+ data: new IconThemeData(color: iconThemeColor),
+ child: child
+ )
+ )
+ )
+ )
+ )
+ )
+ );
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/icon.dart b/packages/flutter/lib/widgets/icon.dart
new file mode 100644
index 0000000..7229d9e
--- /dev/null
+++ b/packages/flutter/lib/widgets/icon.dart
@@ -0,0 +1,100 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/mojo/asset_bundle.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/widget.dart';
+
+enum IconThemeColor { white, black }
+
+class IconThemeData {
+ const IconThemeData({ this.color });
+ final IconThemeColor color;
+}
+
+class IconTheme extends Inherited {
+
+ IconTheme({
+ String key,
+ this.data,
+ Widget child
+ }) : super(key: key, child: child) {
+ assert(data != null);
+ assert(child != null);
+ }
+
+ final IconThemeData data;
+
+ static IconThemeData of(Component component) {
+ IconTheme result = component.inheritedOfType(IconTheme);
+ return result == null ? null : result.data;
+ }
+
+ bool syncShouldNotify(IconTheme old) => data != old.data;
+
+}
+
+AssetBundle _initIconBundle() {
+ if (rootBundle != null)
+ return rootBundle;
+ const String _kAssetBase = '/packages/sky/assets/material-design-icons/';
+ return new NetworkAssetBundle(Uri.base.resolve(_kAssetBase));
+}
+
+final AssetBundle _iconBundle = _initIconBundle();
+
+class Icon extends Component {
+ Icon({
+ String key,
+ this.size,
+ this.type: '',
+ this.color,
+ this.colorFilter
+ }) : super(key: key);
+
+ final int size;
+ final String type;
+ final IconThemeColor color;
+ final sky.ColorFilter colorFilter;
+
+ String get colorSuffix {
+ IconThemeColor iconThemeColor = color;
+ if (iconThemeColor == null) {
+ IconThemeData iconThemeData = IconTheme.of(this);
+ iconThemeColor = iconThemeData == null ? null : iconThemeData.color;
+ }
+ if (iconThemeColor == null) {
+ ThemeBrightness themeBrightness = Theme.of(this).brightness;
+ iconThemeColor = themeBrightness == ThemeBrightness.dark ? IconThemeColor.white : IconThemeColor.black;
+ }
+ switch(iconThemeColor) {
+ case IconThemeColor.white:
+ return "white";
+ case IconThemeColor.black:
+ return "black";
+ }
+ }
+
+ Widget build() {
+ String category = '';
+ String subtype = '';
+ List<String> parts = type.split('/');
+ if (parts.length == 2) {
+ category = parts[0];
+ subtype = parts[1];
+ }
+ // TODO(eseidel): This clearly isn't correct. Not sure what would be.
+ // Should we use the ios images on ios?
+ String density = 'drawable-xxhdpi';
+ return new AssetImage(
+ bundle: _iconBundle,
+ name: '${category}/${density}/ic_${subtype}_${colorSuffix}_${size}dp.png',
+ size: new Size(size.toDouble(), size.toDouble()),
+ colorFilter: colorFilter
+ );
+ }
+}
diff --git a/packages/flutter/lib/widgets/icon_button.dart b/packages/flutter/lib/widgets/icon_button.dart
new file mode 100644
index 0000000..ceee0af
--- /dev/null
+++ b/packages/flutter/lib/widgets/icon_button.dart
@@ -0,0 +1,41 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/rendering/box.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/icon.dart';
+import 'package:sky/widgets/widget.dart';
+
+class IconButton extends Component {
+
+ IconButton({ String icon: '', this.onPressed, this.color })
+ : super(key: icon), icon = icon;
+
+ final String icon;
+ final Function onPressed;
+ final Color color;
+
+ Widget build() {
+ Widget child = new Icon(type: icon, size: 24);
+ if (color != null) {
+ child = new ColorFilter(
+ color: color,
+ transferMode: sky.TransferMode.srcATop,
+ child: child
+ );
+ }
+ return new Listener(
+ child: new Padding(
+ child: child,
+ padding: const EdgeDims.all(8.0)),
+ onGestureTap: (_) {
+ if (onPressed != null)
+ onPressed();
+ }
+ );
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/ink_well.dart b/packages/flutter/lib/widgets/ink_well.dart
new file mode 100644
index 0000000..f711fe1
--- /dev/null
+++ b/packages/flutter/lib/widgets/ink_well.dart
@@ -0,0 +1,133 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+import 'dart:sky' as sky;
+
+import 'package:sky/animation/animation_performance.dart';
+import 'package:sky/animation/curves.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/widget.dart';
+
+const int _kSplashInitialOpacity = 0x80;
+const double _kSplashCancelledVelocity = 0.3;
+const double _kSplashConfirmedVelocity = 0.3;
+const double _kSplashInitialSize = 0.0;
+const double _kSplashUnconfirmedVelocity = 0.1;
+
+double _getSplashTargetSize(Size bounds, Point position) {
+ double d1 = (position - bounds.topLeft(Point.origin)).distance;
+ double d2 = (position - bounds.topRight(Point.origin)).distance;
+ double d3 = (position - bounds.bottomLeft(Point.origin)).distance;
+ double d4 = (position - bounds.bottomRight(Point.origin)).distance;
+ return math.max(math.max(d1, d2), math.max(d3, d4)).ceil().toDouble();
+}
+
+class InkSplash {
+ InkSplash(this.pointer, this.position, this.well) {
+ _targetRadius = _getSplashTargetSize(well.size, position);
+ _radius = new AnimatedType<double>(
+ _kSplashInitialSize, end: _targetRadius, curve: easeOut);
+
+ _performance = new AnimationPerformance()
+ ..variable = _radius
+ ..duration = new Duration(milliseconds: (_targetRadius / _kSplashUnconfirmedVelocity).floor())
+ ..addListener(_handleRadiusChange)
+ ..play();
+ }
+
+ final int pointer;
+ final Point position;
+ final RenderInkWell well;
+
+ double _targetRadius;
+ double _pinnedRadius;
+ AnimatedType<double> _radius;
+ AnimationPerformance _performance;
+
+ void _updateVelocity(double velocity) {
+ int duration = (_targetRadius / velocity).floor();
+ _performance
+ ..duration = new Duration(milliseconds: duration)
+ ..play();
+ }
+
+ void confirm() {
+ _updateVelocity(_kSplashConfirmedVelocity);
+ }
+
+ void cancel() {
+ _updateVelocity(_kSplashCancelledVelocity);
+ _pinnedRadius = _radius.value;
+ }
+
+ void _handleRadiusChange() {
+ if (_radius.value == _targetRadius)
+ well._splashes.remove(this);
+ well.markNeedsPaint();
+ }
+
+ void paint(PaintingCanvas canvas) {
+ int opacity = (_kSplashInitialOpacity * (1.0 - (_radius.value / _targetRadius))).floor();
+ sky.Paint paint = new sky.Paint()..color = new sky.Color(opacity << 24);
+ double radius = _pinnedRadius == null ? _radius.value : _pinnedRadius;
+ canvas.drawCircle(position, radius, paint);
+ }
+}
+
+class RenderInkWell extends RenderProxyBox {
+ RenderInkWell({ RenderBox child }) : super(child);
+
+ final List<InkSplash> _splashes = new List<InkSplash>();
+
+ void handleEvent(sky.Event event, BoxHitTestEntry entry) {
+ if (event is sky.GestureEvent) {
+ switch (event.type) {
+ case 'gesturetapdown':
+ _startSplash(event.primaryPointer, entry.localPosition);
+ break;
+ case 'gesturetap':
+ _confirmSplash(event.primaryPointer);
+ break;
+ }
+ }
+ }
+
+ void _startSplash(int pointer, Point position) {
+ _splashes.add(new InkSplash(pointer, position, this));
+ markNeedsPaint();
+ }
+
+ void _forEachSplash(int pointer, Function callback) {
+ _splashes.where((splash) => splash.pointer == pointer)
+ .forEach(callback);
+ }
+
+ void _confirmSplash(int pointer) {
+ _forEachSplash(pointer, (splash) { splash.confirm(); });
+ markNeedsPaint();
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ if (!_splashes.isEmpty) {
+ canvas.save();
+ canvas.translate(offset.dx, offset.dy);
+ canvas.clipRect(Point.origin & size);
+ for (InkSplash splash in _splashes)
+ splash.paint(canvas);
+ canvas.restore();
+ }
+ super.paint(canvas, offset);
+ }
+}
+
+class InkWell extends OneChildRenderObjectWrapper {
+ InkWell({ String key, Widget child })
+ : super(key: key, child: child);
+
+ RenderInkWell get root => super.root;
+ RenderInkWell createNode() => new RenderInkWell();
+}
diff --git a/packages/flutter/lib/widgets/material.dart b/packages/flutter/lib/widgets/material.dart
new file mode 100644
index 0000000..4efcae3
--- /dev/null
+++ b/packages/flutter/lib/widgets/material.dart
@@ -0,0 +1,97 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/animation/animation_performance.dart';
+import 'package:sky/painting/box_painter.dart';
+import 'package:sky/widgets/animated_component.dart';
+import 'package:sky/widgets/animation_builder.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/default_text_style.dart';
+import 'package:sky/widgets/theme.dart';
+
+enum MaterialType { canvas, card, circle, button }
+
+const Map<MaterialType, double> edges = const {
+ MaterialType.canvas: null,
+ MaterialType.card: 2.0,
+ MaterialType.circle: null,
+ MaterialType.button: 2.0,
+};
+
+const Duration _kAnimateShadowDuration = const Duration(milliseconds: 100);
+const Duration _kAnimateColorDuration = const Duration(milliseconds: 100);
+
+class Material extends AnimatedComponent {
+
+ Material({
+ String key,
+ this.child,
+ this.type: MaterialType.card,
+ this.level: 0,
+ this.color
+ }) : super(key: key) {
+ assert(level != null);
+ }
+
+ Widget child;
+ MaterialType type;
+ int level;
+ Color color;
+
+ final AnimationBuilder _builder = new AnimationBuilder();
+
+ void initState() {
+ _builder
+ ..shadow = new AnimatedType<double>(level.toDouble())
+ ..backgroundColor = _getBackgroundColor(type, color)
+ ..borderRadius = edges[type]
+ ..shape = type == MaterialType.circle ? Shape.circle : Shape.rectangle;
+ watch(_builder.createPerformance(
+ [_builder.shadow],
+ duration: _kAnimateShadowDuration
+ ));
+ watch(_builder.createPerformance(
+ [_builder.backgroundColor],
+ duration: _kAnimateColorDuration
+ ));
+ super.initState();
+ }
+
+ void syncFields(Material source) {
+ child = source.child;
+ type = source.type;
+ level = source.level;
+ color = source.color;
+ _builder.updateFields(
+ shadow: new AnimatedType<double>(level.toDouble()),
+ backgroundColor: _getBackgroundColor(type, color),
+ borderRadius: edges[type],
+ shape: type == MaterialType.circle ? Shape.circle : Shape.rectangle
+ );
+ super.syncFields(source);
+ }
+
+ AnimatedColor _getBackgroundColor(MaterialType type, Color color) {
+ if (color == null) {
+ switch (type) {
+ case MaterialType.canvas:
+ color = Theme.of(this).canvasColor;
+ break;
+ case MaterialType.card:
+ color = Theme.of(this).cardColor;
+ break;
+ default:
+ break;
+ }
+ }
+ return color == null ? null : new AnimatedColor(color);
+ }
+
+ Widget build() {
+ return _builder.build(
+ new DefaultTextStyle(style: Theme.of(this).text.body1, child: child)
+ );
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/material_button.dart b/packages/flutter/lib/widgets/material_button.dart
new file mode 100644
index 0000000..a037b91
--- /dev/null
+++ b/packages/flutter/lib/widgets/material_button.dart
@@ -0,0 +1,55 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/button_base.dart';
+import 'package:sky/widgets/ink_well.dart';
+import 'package:sky/widgets/material.dart';
+
+// Rather than using this class directly, please use FlatButton or RaisedButton.
+abstract class MaterialButton extends ButtonBase {
+
+ MaterialButton({
+ String key,
+ this.child,
+ this.enabled: true,
+ this.onPressed
+ }) : super(key: key);
+
+ Widget child;
+ bool enabled;
+ Function onPressed;
+
+ void syncFields(MaterialButton source) {
+ child = source.child;
+ enabled = source.enabled;
+ onPressed = source.onPressed;
+ super.syncFields(source);
+ }
+
+ Color get color;
+ int get level;
+
+ Widget buildContent() {
+ Widget contents = new Container(
+ padding: new EdgeDims.symmetric(horizontal: 8.0),
+ child: new Center(child: child) // TODO(ianh): figure out a way to compell the child to have gray text when disabled...
+ );
+ return new Listener(
+ child: new Container(
+ height: 36.0,
+ constraints: new BoxConstraints(minWidth: 88.0),
+ margin: new EdgeDims.all(8.0),
+ child: new Material(
+ type: MaterialType.button,
+ child: enabled ? new InkWell(child: contents) : contents,
+ level: level,
+ color: color
+ )
+ ),
+ onGestureTap: (_) { if (onPressed != null && enabled) onPressed(); }
+ );
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/modal_overlay.dart b/packages/flutter/lib/widgets/modal_overlay.dart
new file mode 100644
index 0000000..ccf0166
--- /dev/null
+++ b/packages/flutter/lib/widgets/modal_overlay.dart
@@ -0,0 +1,25 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/widget.dart';
+
+class ModalOverlay extends Component {
+
+ ModalOverlay({ String key, this.children, this.onDismiss }) : super(key: key);
+
+ final List<Widget> children;
+ final Function onDismiss;
+
+ Widget build() {
+ return new Listener(
+ onGestureTap: (_) {
+ if (onDismiss != null)
+ onDismiss();
+ },
+ child: new Stack(children)
+ );
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/navigator.dart b/packages/flutter/lib/widgets/navigator.dart
new file mode 100644
index 0000000..483325f
--- /dev/null
+++ b/packages/flutter/lib/widgets/navigator.dart
@@ -0,0 +1,120 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/widgets/basic.dart';
+
+typedef Widget Builder(Navigator navigator, RouteBase route);
+
+abstract class RouteBase {
+ RouteBase({ this.key });
+ final Object key;
+ Widget build(Navigator navigator, RouteBase route);
+ void popState() { }
+}
+
+class Route extends RouteBase {
+ Route({ String name, this.builder }) : super(key: name);
+ String get name => key;
+ final Builder builder;
+ Widget build(Navigator navigator, RouteBase route) => builder(navigator, route);
+}
+
+class RouteState extends RouteBase {
+
+ RouteState({ this.callback, this.route, Object key }) : super(key: key);
+
+ RouteBase route;
+ Function callback;
+
+ Widget build(Navigator navigator, _) => route.build(navigator, this);
+
+ void popState() {
+ if (callback != null)
+ callback(this);
+ }
+}
+
+class NavigationState {
+
+ NavigationState(List<Route> routes) {
+ for (Route route in routes) {
+ if (route.name != null)
+ namedRoutes[route.name] = route;
+ }
+ history.add(routes[0]);
+ }
+
+ List<RouteBase> history = new List<RouteBase>();
+ int historyIndex = 0;
+ Map<String, RouteBase> namedRoutes = new Map<String, RouteBase>();
+
+ RouteBase get currentRoute => history[historyIndex];
+ bool hasPrevious() => historyIndex > 0;
+ bool hasNext() => history.length > historyIndex + 1;
+
+ void pushNamed(String name) {
+ Route route = namedRoutes[name];
+ assert(route != null);
+ push(route);
+ }
+
+ void push(RouteBase route) {
+ // Discard future history
+ history.removeRange(historyIndex + 1, history.length);
+ historyIndex = history.length;
+ history.add(route);
+ }
+
+ void pop() {
+ if (historyIndex > 0) {
+ history[historyIndex].popState();
+ history.removeLast();
+ historyIndex--;
+ }
+ }
+}
+
+class Navigator extends StatefulComponent {
+
+ Navigator(this.state, { String key }) : super(key: key);
+
+ NavigationState state;
+
+ void syncFields(Navigator source) {
+ state = source.state;
+ }
+
+ RouteBase get currentRoute => state.currentRoute;
+
+ void pushState(Object key, Function callback) {
+ RouteBase route = new RouteState(
+ key: key,
+ callback: callback,
+ route: state.currentRoute
+ );
+ push(route);
+ }
+
+ void pushNamed(String name) {
+ setState(() {
+ state.pushNamed(name);
+ });
+ }
+
+ void push(RouteBase route) {
+ setState(() {
+ state.push(route);
+ });
+ }
+
+ void pop() {
+ setState(() {
+ state.pop();
+ });
+ }
+
+ Widget build() {
+ return state.currentRoute.build(this, state.currentRoute);
+ }
+}
diff --git a/packages/flutter/lib/widgets/popup_menu.dart b/packages/flutter/lib/widgets/popup_menu.dart
new file mode 100644
index 0000000..2d8a0dd
--- /dev/null
+++ b/packages/flutter/lib/widgets/popup_menu.dart
@@ -0,0 +1,187 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+import 'dart:sky' as sky;
+
+import 'package:sky/animation/animation_performance.dart';
+import 'package:sky/painting/box_painter.dart';
+import 'package:sky/theme/colors.dart';
+import 'package:sky/theme/shadows.dart';
+import 'package:sky/widgets/animated_component.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/navigator.dart';
+import 'package:sky/widgets/popup_menu_item.dart';
+import 'package:sky/widgets/scrollable_viewport.dart';
+
+const Duration _kMenuDuration = const Duration(milliseconds: 300);
+double _kMenuCloseIntervalEnd = 2.0 / 3.0;
+const double _kMenuWidthStep = 56.0;
+const double _kMenuMargin = 16.0; // 24.0 on tablet
+const double _kMenuMinWidth = 2.0 * _kMenuWidthStep;
+const double _kMenuMaxWidth = 5.0 * _kMenuWidthStep;
+const double _kMenuHorizontalPadding = 16.0;
+const double _kMenuVerticalPadding = 8.0;
+
+enum PopupMenuStatus {
+ active,
+ inactive,
+}
+
+typedef void PopupMenuStatusChangedCallback(PopupMenuStatus status);
+
+class PopupMenu extends AnimatedComponent {
+
+ PopupMenu({
+ String key,
+ this.showing,
+ this.onStatusChanged,
+ this.items,
+ this.level,
+ this.navigator
+ }) : super(key: key);
+
+ bool showing;
+ PopupMenuStatusChangedCallback onStatusChanged;
+ List<PopupMenuItem> items;
+ int level;
+ Navigator navigator;
+
+ AnimatedType<double> _opacity;
+ AnimatedType<double> _width;
+ AnimatedType<double> _height;
+ List<AnimatedType<double>> _itemOpacities;
+ AnimatedList _animationList;
+ AnimationPerformance _performance;
+
+ void initState() {
+ _performance = new AnimationPerformance()
+ ..duration = _kMenuDuration
+ ..addListener(_checkForStateChanged);
+ _updateAnimationVariables();
+ watch(_performance);
+ _updateBoxPainter();
+ if (showing)
+ _open();
+ }
+
+ void syncFields(PopupMenu source) {
+ if (showing != source.showing) {
+ showing = source.showing;
+ if (showing)
+ _open();
+ else
+ _close();
+ }
+ onStatusChanged = source.onStatusChanged;
+ if (level != source.level) {
+ level = source.level;
+ _updateBoxPainter();
+ }
+ if (items.length != source.items.length)
+ _updateAnimationVariables();
+ items = source.items;
+ navigator = source.navigator;
+ super.syncFields(source);
+ }
+
+ void _updateAnimationVariables() {
+ double unit = 1.0 / (items.length + 1.5); // 1.0 for the width and 0.5 for the last item's fade.
+ _opacity = new AnimatedType<double>(0.0, end: 1.0);
+ _width = new AnimatedType<double>(0.0, end: 1.0, interval: new Interval(0.0, unit));
+ _height = new AnimatedType<double>(0.0, end: 1.0, interval: new Interval(0.0, unit * items.length));
+ _itemOpacities = new List<AnimatedType<double>>();
+ for (int i = 0; i < items.length; ++i) {
+ double start = (i + 1) * unit;
+ double end = (start + 1.5 * unit).clamp(0.0, 1.0);
+ _itemOpacities.add(new AnimatedType<double>(
+ 0.0, end: 1.0, interval: new Interval(start, end)));
+ }
+ List<AnimatedVariable> variables = new List<AnimatedVariable>()
+ ..add(_opacity)
+ ..add(_width)
+ ..add(_height)
+ ..addAll(_itemOpacities);
+ _animationList = new AnimatedList(variables);
+ _performance.variable = _animationList;
+ }
+
+ void _updateBoxPainter() {
+ _painter = new BoxPainter(new BoxDecoration(
+ backgroundColor: Grey[50],
+ borderRadius: 2.0,
+ boxShadow: shadows[level]));
+ }
+
+ PopupMenuStatus get _status => _opacity.value != 0.0 ? PopupMenuStatus.active : PopupMenuStatus.inactive;
+
+ PopupMenuStatus _lastStatus;
+ void _checkForStateChanged() {
+ PopupMenuStatus status = _status;
+ if (_lastStatus != null && status != _lastStatus) {
+ if (status == PopupMenuStatus.inactive &&
+ navigator != null &&
+ navigator.currentRoute.key == this)
+ navigator.pop();
+ if (onStatusChanged != null)
+ onStatusChanged(status);
+ }
+ _lastStatus = status;
+ }
+
+
+ void _open() {
+ _animationList.interval = null;
+ _performance.play();
+ if (navigator != null)
+ navigator.pushState(this, (_) => _close());
+ }
+
+ void _close() {
+ _animationList.interval = new Interval(0.0, _kMenuCloseIntervalEnd);
+ _performance.reverse();
+ }
+
+ BoxPainter _painter;
+
+ Widget build() {
+ int i = 0;
+ List<Widget> children = new List.from(items.map((Widget item) {
+ return new Opacity(opacity: _itemOpacities[i++].value, child: item);
+ }));
+
+ return new Opacity(
+ opacity: math.min(1.0, _opacity.value * 3.0),
+ child: new Container(
+ margin: new EdgeDims.all(_kMenuMargin),
+ child: new CustomPaint(
+ callback: (sky.Canvas canvas, Size size) {
+ double width = _width.value * size.width;
+ double height = _height.value * size.height;
+ _painter.paint(canvas, new Rect.fromLTWH(size.width - width, 0.0, width, height));
+ },
+ child: new ConstrainedBox(
+ constraints: new BoxConstraints(
+ minWidth: _kMenuMinWidth,
+ maxWidth: _kMenuMaxWidth
+ ),
+ child: new ShrinkWrapWidth(
+ stepWidth: _kMenuWidthStep,
+ child: new ScrollableViewport(
+ child: new Container(
+ padding: const EdgeDims.symmetric(
+ horizontal: _kMenuHorizontalPadding,
+ vertical: _kMenuVerticalPadding
+ ),
+ child: new Block(children)
+ )
+ )
+ )
+ )
+ )
+ )
+ );
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/popup_menu_item.dart b/packages/flutter/lib/widgets/popup_menu_item.dart
new file mode 100644
index 0000000..d04e326
--- /dev/null
+++ b/packages/flutter/lib/widgets/popup_menu_item.dart
@@ -0,0 +1,46 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/default_text_style.dart';
+import 'package:sky/widgets/ink_well.dart';
+import 'package:sky/widgets/theme.dart';
+
+const double kMenuItemHeight = 48.0;
+const double kBaselineOffsetFromBottom = 20.0;
+
+class PopupMenuItem extends Component {
+ PopupMenuItem({
+ String key,
+ this.onPressed,
+ this.child
+ }) : super(key: key);
+
+ final Widget child;
+ final Function onPressed;
+
+ TextStyle get textStyle => Theme.of(this).text.subhead;
+
+ Widget build() {
+ return new Listener(
+ onGestureTap: (_) {
+ if (onPressed != null)
+ onPressed();
+ },
+ child: new InkWell(
+ child: new Container(
+ height: kMenuItemHeight,
+ child: new DefaultTextStyle(
+ style: textStyle,
+ child: new Baseline(
+ baseline: kMenuItemHeight - kBaselineOffsetFromBottom,
+ child: child
+ )
+ )
+ )
+ )
+ );
+ }
+}
diff --git a/packages/flutter/lib/widgets/radio.dart b/packages/flutter/lib/widgets/radio.dart
new file mode 100644
index 0000000..dd756b1
--- /dev/null
+++ b/packages/flutter/lib/widgets/radio.dart
@@ -0,0 +1,79 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/rendering/object.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/button_base.dart';
+import 'package:sky/widgets/theme.dart';
+
+const sky.Color _kLightOffColor = const sky.Color(0x8A000000);
+const sky.Color _kDarkOffColor = const sky.Color(0xB2FFFFFF);
+
+typedef void ValueChanged(value);
+
+class Radio extends ButtonBase {
+
+ Radio({
+ String key,
+ this.value,
+ this.groupValue,
+ this.onChanged
+ }) : super(key: key);
+
+ Object value;
+ Object groupValue;
+ ValueChanged onChanged;
+
+ void syncFields(Radio source) {
+ value = source.value;
+ groupValue = source.groupValue;
+ onChanged = source.onChanged;
+ super.syncFields(source);
+ }
+
+ Color get color {
+ ThemeData themeData = Theme.of(this);
+ if (value == groupValue)
+ return themeData.accentColor;
+ return themeData.brightness == ThemeBrightness.light ? _kLightOffColor : _kDarkOffColor;
+ }
+
+ Widget buildContent() {
+ const double kDiameter = 16.0;
+ const double kOuterRadius = kDiameter / 2;
+ const double kInnerRadius = 5.0;
+ return new Listener(
+ child: new Container(
+ margin: const EdgeDims.symmetric(horizontal: 5.0),
+ width: kDiameter,
+ height: kDiameter,
+ child: new CustomPaint(
+ callback: (sky.Canvas canvas, Size size) {
+
+ Paint paint = new Paint()..color = color;
+
+ // Draw the outer circle
+ paint.setStyle(sky.PaintingStyle.stroke);
+ paint.strokeWidth = 2.0;
+ canvas.drawCircle(const Point(kOuterRadius, kOuterRadius), kOuterRadius, paint);
+
+ // Draw the inner circle
+ if (value == groupValue) {
+ paint.setStyle(sky.PaintingStyle.fill);
+ canvas.drawCircle(const Point(kOuterRadius, kOuterRadius), kInnerRadius, paint);
+ }
+ }
+ )
+ ),
+ onGestureTap: _handleClick
+ );
+ }
+
+ void _handleClick(_) {
+ onChanged(value);
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/raised_button.dart b/packages/flutter/lib/widgets/raised_button.dart
new file mode 100644
index 0000000..52936c0
--- /dev/null
+++ b/packages/flutter/lib/widgets/raised_button.dart
@@ -0,0 +1,44 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/material_button.dart';
+import 'package:sky/widgets/theme.dart';
+
+class RaisedButton extends MaterialButton {
+
+ RaisedButton({
+ String key,
+ Widget child,
+ bool enabled: true,
+ Function onPressed
+ }) : super(key: key,
+ child: child,
+ enabled: enabled,
+ onPressed: onPressed);
+
+ Color get color {
+ if (enabled) {
+ switch (Theme.of(this).brightness) {
+ case ThemeBrightness.light:
+ if (highlight)
+ return colors.Grey[350];
+ else
+ return colors.Grey[300];
+ break;
+ case ThemeBrightness.dark:
+ if (highlight)
+ return Theme.of(this).primarySwatch[700];
+ else
+ return Theme.of(this).primarySwatch[600];
+ break;
+ }
+ } else {
+ return colors.Grey[350];
+ }
+ }
+
+ int get level => enabled ? (highlight ? 2 : 1) : 0;
+}
diff --git a/packages/flutter/lib/widgets/scaffold.dart b/packages/flutter/lib/widgets/scaffold.dart
new file mode 100644
index 0000000..524d384
--- /dev/null
+++ b/packages/flutter/lib/widgets/scaffold.dart
@@ -0,0 +1,232 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/theme/view_configuration.dart';
+import 'package:sky/widgets/widget.dart';
+
+// Slots are painted in this order and hit tested in reverse of this order
+enum ScaffoldSlots {
+ body,
+ statusBar,
+ toolbar,
+ snackBar,
+ floatingActionButton,
+ drawer
+}
+
+class RenderScaffold extends RenderBox {
+
+ RenderScaffold({
+ RenderBox body,
+ RenderBox statusBar,
+ RenderBox toolbar,
+ RenderBox snackBar,
+ RenderBox floatingActionButton,
+ RenderBox drawer
+ }) {
+ this[ScaffoldSlots.body] = body;
+ this[ScaffoldSlots.statusBar] = statusBar;
+ this[ScaffoldSlots.toolbar] = toolbar;
+ this[ScaffoldSlots.snackBar] = snackBar;
+ this[ScaffoldSlots.floatingActionButton] = floatingActionButton;
+ this[ScaffoldSlots.drawer] = drawer;
+ }
+
+ Map<ScaffoldSlots, RenderBox> _slots = new Map<ScaffoldSlots, RenderBox>();
+ RenderBox operator[] (ScaffoldSlots slot) => _slots[slot];
+ void operator[]= (ScaffoldSlots slot, RenderBox value) {
+ RenderBox old = _slots[slot];
+ if (old == value)
+ return;
+ if (old != null)
+ dropChild(old);
+ if (value == null) {
+ _slots.remove(slot);
+ } else {
+ _slots[slot] = value;
+ adoptChild(value);
+ }
+ markNeedsLayout();
+ }
+
+ void attachChildren() {
+ for (ScaffoldSlots slot in ScaffoldSlots.values) {
+ RenderBox box = _slots[slot];
+ if (box != null)
+ box.attach();
+ }
+ }
+
+ void detachChildren() {
+ for (ScaffoldSlots slot in ScaffoldSlots.values) {
+ RenderBox box = _slots[slot];
+ if (box != null)
+ box.detach();
+ }
+ }
+
+ ScaffoldSlots remove(RenderBox child) {
+ assert(child != null);
+ for (ScaffoldSlots slot in ScaffoldSlots.values) {
+ if (_slots[slot] == child) {
+ this[slot] = null;
+ return slot;
+ }
+ }
+ return null;
+ }
+
+ bool get sizedByParent => true;
+ void performResize() {
+ size = constraints.biggest;
+ assert(!size.isInfinite);
+ }
+
+ // TODO(eseidel): These change based on device size!
+ // http://www.google.com/design/spec/layout/metrics-keylines.html#metrics-keylines-keylines-spacing
+ static const kButtonX = 16.0; // left from right edge of body
+ static const kButtonY = 16.0; // up from bottom edge of body
+
+ void performLayout() {
+ double bodyHeight = size.height;
+ double bodyPosition = 0.0;
+ if (_slots[ScaffoldSlots.statusBar] != null) {
+ RenderBox statusBar = _slots[ScaffoldSlots.statusBar];
+ statusBar.layout(new BoxConstraints.tight(new Size(size.width, kStatusBarHeight)));
+ assert(statusBar.parentData is BoxParentData);
+ statusBar.parentData.position = new Point(0.0, size.height - kStatusBarHeight);
+ bodyHeight -= kStatusBarHeight;
+ }
+ if (_slots[ScaffoldSlots.toolbar] != null) {
+ RenderBox toolbar = _slots[ScaffoldSlots.toolbar];
+ double toolbarHeight = kToolBarHeight + sky.view.paddingTop;
+ toolbar.layout(new BoxConstraints.tight(new Size(size.width, toolbarHeight)));
+ assert(toolbar.parentData is BoxParentData);
+ toolbar.parentData.position = Point.origin;
+ bodyPosition += toolbarHeight;
+ bodyHeight -= toolbarHeight;
+ }
+ if (_slots[ScaffoldSlots.body] != null) {
+ RenderBox body = _slots[ScaffoldSlots.body];
+ body.layout(new BoxConstraints.tight(new Size(size.width, bodyHeight)));
+ assert(body.parentData is BoxParentData);
+ body.parentData.position = new Point(0.0, bodyPosition);
+ }
+ double snackBarHeight = 0.0;
+ if (_slots[ScaffoldSlots.snackBar] != null) {
+ RenderBox snackBar = _slots[ScaffoldSlots.snackBar];
+ // TODO(jackson): On tablet/desktop, minWidth = 288, maxWidth = 568
+ snackBar.layout(new BoxConstraints(minWidth: size.width, maxWidth: size.width, minHeight: 0.0, maxHeight: size.height),
+ parentUsesSize: true);
+ assert(snackBar.parentData is BoxParentData);
+ snackBar.parentData.position = new Point(0.0, size.height - snackBar.size.height);
+ snackBarHeight = snackBar.size.height;
+ }
+ if (_slots[ScaffoldSlots.floatingActionButton] != null) {
+ RenderBox floatingActionButton = _slots[ScaffoldSlots.floatingActionButton];
+ Size area = new Size(size.width - kButtonX, size.height - kButtonY - snackBarHeight);
+ floatingActionButton.layout(new BoxConstraints.loose(area), parentUsesSize: true);
+ assert(floatingActionButton.parentData is BoxParentData);
+ floatingActionButton.parentData.position = (area - floatingActionButton.size).toPoint();
+ }
+ if (_slots[ScaffoldSlots.drawer] != null) {
+ RenderBox drawer = _slots[ScaffoldSlots.drawer];
+ drawer.layout(new BoxConstraints(minWidth: 0.0, maxWidth: size.width, minHeight: size.height, maxHeight: size.height));
+ assert(drawer.parentData is BoxParentData);
+ drawer.parentData.position = Point.origin;
+ }
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ for (ScaffoldSlots slot in ScaffoldSlots.values) {
+ RenderBox box = _slots[slot];
+ if (box != null) {
+ assert(box.parentData is BoxParentData);
+ canvas.paintChild(box, box.parentData.position + offset);
+ }
+ }
+ }
+
+ void hitTestChildren(HitTestResult result, { Point position }) {
+ for (ScaffoldSlots slot in ScaffoldSlots.values.reversed) {
+ RenderBox box = _slots[slot];
+ if (box != null) {
+ assert(box.parentData is BoxParentData);
+ if ((box.parentData.position & box.size).contains(position)) {
+ if (box.hitTest(result, position: (position - box.parentData.position).toPoint()))
+ return;
+ }
+ }
+ }
+ }
+
+ String debugDescribeChildren(String prefix) {
+ return _slots.keys.map((slot) => '${prefix}${slot}: ${_slots[slot].toString(prefix)}').join();
+ }
+}
+
+class Scaffold extends RenderObjectWrapper {
+
+ Scaffold({
+ String key,
+ Widget body,
+ Widget statusBar,
+ Widget toolbar,
+ Widget snackBar,
+ Widget floatingActionButton,
+ Widget drawer
+ }) : super(key: key) {
+ _slots[ScaffoldSlots.body] = body;
+ _slots[ScaffoldSlots.statusBar] = statusBar;
+ _slots[ScaffoldSlots.toolbar] = toolbar;
+ _slots[ScaffoldSlots.snackBar] = snackBar;
+ _slots[ScaffoldSlots.floatingActionButton] = floatingActionButton;
+ _slots[ScaffoldSlots.drawer] = drawer;
+ }
+
+ Map<ScaffoldSlots, Widget> _slots = new Map<ScaffoldSlots, Widget>();
+
+ RenderScaffold get root => super.root;
+ RenderScaffold createNode() => new RenderScaffold();
+
+ void walkChildren(WidgetTreeWalker walker) {
+ for (ScaffoldSlots slot in ScaffoldSlots.values) {
+ Widget widget = _slots[slot];
+ if (widget != null)
+ walker(widget);
+ }
+ }
+
+ void insertChildRoot(RenderObjectWrapper child, ScaffoldSlots slot) {
+ root[slot] = child != null ? child.root : null;
+ }
+
+ void detachChildRoot(RenderObjectWrapper child) {
+ final root = this.root; // TODO(ianh): Remove this once the analyzer is cleverer
+ assert(root is RenderScaffold);
+ assert(root == child.root.parent);
+ root.remove(child.root);
+ assert(root == this.root); // TODO(ianh): Remove this once the analyzer is cleverer
+ }
+
+ void remove() {
+ walkChildren((Widget child) => removeChild(child));
+ super.remove();
+ }
+
+ void syncRenderObject(Widget old) {
+ super.syncRenderObject(old);
+ for (ScaffoldSlots slot in ScaffoldSlots.values) {
+ Widget widget = _slots[slot];
+ _slots[slot] = syncChild(widget, old is Scaffold ? old._slots[slot] : null, slot);
+ assert((_slots[slot] == null) == (widget == null));
+ assert(_slots[slot] == null || _slots[slot].parent == this);
+ }
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/scrollable.dart b/packages/flutter/lib/widgets/scrollable.dart
new file mode 100644
index 0000000..6a687b5
--- /dev/null
+++ b/packages/flutter/lib/widgets/scrollable.dart
@@ -0,0 +1,169 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:newton/newton.dart';
+import 'package:sky/animation/animated_simulation.dart';
+import 'package:sky/animation/scroll_behavior.dart';
+import 'package:sky/theme/view_configuration.dart' as config;
+import 'package:sky/widgets/basic.dart';
+
+const double _kMillisecondsPerSecond = 1000.0;
+
+double _velocityForFlingGesture(double eventVelocity) {
+ // eventVelocity is pixels/second, config min,max limits are pixels/ms
+ return eventVelocity.clamp(-config.kMaxFlingVelocity, config.kMaxFlingVelocity) /
+ _kMillisecondsPerSecond;
+}
+
+abstract class ScrollClient {
+ bool ancestorScrolled(Scrollable ancestor);
+}
+
+enum ScrollDirection { vertical, horizontal }
+
+abstract class Scrollable extends StatefulComponent {
+
+ Scrollable({
+ String key,
+ this.direction: ScrollDirection.vertical
+ }) : super(key: key);
+
+ ScrollDirection direction;
+
+ void initState() {
+ _animation = new AnimatedSimulation(_tickScrollOffset);
+ }
+
+ void syncFields(Scrollable source) {
+ direction == source.direction;
+ }
+
+ double _scrollOffset = 0.0;
+ double get scrollOffset => _scrollOffset;
+
+ ScrollBehavior _scrollBehavior;
+ ScrollBehavior createScrollBehavior();
+ ScrollBehavior get scrollBehavior {
+ if (_scrollBehavior == null)
+ _scrollBehavior = createScrollBehavior();
+ return _scrollBehavior;
+ }
+
+ AnimatedSimulation _animation;
+
+ Widget buildContent();
+
+ Widget build() {
+ return new Listener(
+ child: buildContent(),
+ onPointerDown: _handlePointerDown,
+ onPointerUp: _handlePointerUpOrCancel,
+ onPointerCancel: _handlePointerUpOrCancel,
+ onGestureFlingStart: _handleFlingStart,
+ onGestureFlingCancel: _handleFlingCancel,
+ onGestureScrollUpdate: _handleScrollUpdate,
+ onWheel: _handleWheel
+ );
+ }
+
+ List<ScrollClient> _registeredScrollClients;
+
+ void registerScrollClient(ScrollClient notifiee) {
+ if (_registeredScrollClients == null)
+ _registeredScrollClients = new List<ScrollClient>();
+ setState(() {
+ _registeredScrollClients.add(notifiee);
+ });
+ }
+
+ void unregisterScrollClient(ScrollClient notifiee) {
+ if (_registeredScrollClients == null)
+ return;
+ setState(() {
+ _registeredScrollClients.remove(notifiee);
+ });
+ }
+
+ bool scrollTo(double newScrollOffset) {
+ if (newScrollOffset == _scrollOffset)
+ return false;
+ setState(() {
+ _scrollOffset = newScrollOffset;
+ });
+ if (_registeredScrollClients != null) {
+ var newList = null;
+ _registeredScrollClients.forEach((target) {
+ if (target.ancestorScrolled(this)) {
+ if (newList == null)
+ newList = new List<ScrollClient>();
+ newList.add(target);
+ }
+ });
+ setState(() {
+ _registeredScrollClients = newList;
+ });
+ }
+ return true;
+ }
+
+ bool scrollBy(double scrollDelta) {
+ var newScrollOffset = scrollBehavior.applyCurve(_scrollOffset, scrollDelta);
+ return scrollTo(newScrollOffset);
+ }
+
+ void didUnmount() {
+ _stopSimulation();
+ super.didUnmount();
+ }
+
+ void settleScrollOffset() {
+ _startSimulation();
+ }
+
+ void _stopSimulation() {
+ _animation.stop();
+ }
+
+ void _startSimulation({ double velocity: 0.0 }) {
+ _stopSimulation();
+ Simulation simulation = scrollBehavior.release(scrollOffset, velocity);
+ if (simulation != null)
+ _animation.start(simulation);
+ }
+
+ void _tickScrollOffset(double value) {
+ scrollTo(value);
+ }
+
+ void _handlePointerDown(_) {
+ _stopSimulation();
+ }
+
+ void _handlePointerUpOrCancel(_) {
+ if (!_animation.isAnimating)
+ settleScrollOffset();
+ }
+
+ void _handleScrollUpdate(sky.GestureEvent event) {
+ scrollBy(direction == ScrollDirection.horizontal ? event.dx : -event.dy);
+ }
+
+ void _handleFlingStart(sky.GestureEvent event) {
+ double eventVelocity = direction == ScrollDirection.horizontal
+ ? -event.velocityX
+ : -event.velocityY;
+ _startSimulation(velocity: _velocityForFlingGesture(eventVelocity));
+ }
+
+ void _handleFlingCancel(sky.GestureEvent event) {
+ settleScrollOffset();
+ }
+
+ void _handleWheel(sky.WheelEvent event) {
+ scrollBy(-event.offsetY);
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/scrollable_list.dart b/packages/flutter/lib/widgets/scrollable_list.dart
new file mode 100644
index 0000000..10ba57c
--- /dev/null
+++ b/packages/flutter/lib/widgets/scrollable_list.dart
@@ -0,0 +1,39 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+
+import 'package:sky/widgets/fixed_height_scrollable.dart';
+import 'package:sky/widgets/basic.dart';
+
+typedef Widget ItemBuilder<T>(T item);
+
+class ScrollableList<T> extends FixedHeightScrollable {
+ ScrollableList({
+ String key,
+ this.items,
+ this.itemBuilder,
+ double itemHeight,
+ EdgeDims padding
+ }) : super(key: key, itemHeight: itemHeight, padding: padding);
+
+ List<T> items;
+ ItemBuilder<T> itemBuilder;
+
+ void syncFields(ScrollableList<T> source) {
+ items = source.items;
+ itemBuilder = source.itemBuilder;
+ super.syncFields(source);
+ }
+
+ int get itemCount => items.length;
+
+ List<Widget> buildItems(int start, int count) {
+ List<Widget> result = new List<Widget>();
+ int end = math.min(start + count, items.length);
+ for (int i = start; i < end; ++i)
+ result.add(itemBuilder(items[i]));
+ return result;
+ }
+}
diff --git a/packages/flutter/lib/widgets/scrollable_viewport.dart b/packages/flutter/lib/widgets/scrollable_viewport.dart
new file mode 100644
index 0000000..c7ed2ad
--- /dev/null
+++ b/packages/flutter/lib/widgets/scrollable_viewport.dart
@@ -0,0 +1,67 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/animation/scroll_behavior.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/scrollable.dart';
+
+class ScrollableViewport extends Scrollable {
+
+ ScrollableViewport({ String key, this.child }) : super(key: key);
+
+ Widget child;
+
+ void syncFields(ScrollableViewport source) {
+ child = source.child;
+ super.syncFields(source);
+ }
+
+ ScrollBehavior createScrollBehavior() => new FlingBehavior();
+ FlingBehavior get scrollBehavior => super.scrollBehavior;
+
+ double _viewportHeight = 0.0;
+ double _childHeight = 0.0;
+ void _handleViewportSizeChanged(Size newSize) {
+ _viewportHeight = newSize.height;
+ _updateScrollBehaviour();
+ }
+ void _handleChildSizeChanged(Size newSize) {
+ _childHeight = newSize.height;
+ _updateScrollBehaviour();
+ }
+ void _updateScrollBehaviour() {
+ scrollBehavior.contentsSize = _childHeight;
+ scrollBehavior.containerSize = _viewportHeight;
+ if (scrollOffset > scrollBehavior.maxScrollOffset)
+ settleScrollOffset();
+ }
+
+ Widget buildContent() {
+ return new SizeObserver(
+ callback: _handleViewportSizeChanged,
+ child: new Viewport(
+ offset: scrollOffset,
+ child: new SizeObserver(
+ callback: _handleChildSizeChanged,
+ child: child
+ )
+ )
+ );
+ }
+
+}
+
+class ScrollableBlock extends Component {
+
+ ScrollableBlock(this.children, { String key }) : super(key: key);
+
+ final List<Widget> children;
+
+ Widget build() {
+ return new ScrollableViewport(
+ child: new Block(children)
+ );
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/snack_bar.dart b/packages/flutter/lib/widgets/snack_bar.dart
new file mode 100644
index 0000000..074816d
--- /dev/null
+++ b/packages/flutter/lib/widgets/snack_bar.dart
@@ -0,0 +1,70 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/theme/typography.dart' as typography;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/default_text_style.dart';
+import 'package:sky/widgets/material.dart';
+import 'package:sky/widgets/theme.dart';
+
+class SnackBarAction extends Component {
+ SnackBarAction({String key, this.label, this.onPressed }) : super(key: key) {
+ assert(label != null);
+ }
+
+ final String label;
+ final Function onPressed;
+
+ Widget build() {
+ return new Listener(
+ onGestureTap: (_) => onPressed(),
+ child: new Container(
+ margin: const EdgeDims.only(left: 24.0),
+ padding: const EdgeDims.only(top: 14.0, bottom: 14.0),
+ child: new Text(label)
+ )
+ );
+ }
+}
+
+class SnackBar extends Component {
+
+ SnackBar({
+ String key,
+ this.content,
+ this.actions
+ }) : super(key: key) {
+ assert(content != null);
+ }
+
+ final Widget content;
+ final List<SnackBarAction> actions;
+
+ Widget build() {
+ List<Widget> children = [
+ new Flexible(
+ child: new Container(
+ margin: const EdgeDims.symmetric(vertical: 14.0),
+ child: new DefaultTextStyle(
+ style: typography.white.subhead,
+ child: content
+ )
+ )
+ )
+ ]..addAll(actions);
+ return new Material(
+ level: 2,
+ color: const Color(0xFF323232),
+ type: MaterialType.canvas,
+ child: new Container(
+ margin: const EdgeDims.symmetric(horizontal: 24.0),
+ child: new DefaultTextStyle(
+ style: new TextStyle(color: Theme.of(this).accentColor),
+ child: new Flex(children)
+ )
+ )
+ );
+ }
+}
diff --git a/packages/flutter/lib/widgets/switch.dart b/packages/flutter/lib/widgets/switch.dart
new file mode 100644
index 0000000..93feda8
--- /dev/null
+++ b/packages/flutter/lib/widgets/switch.dart
@@ -0,0 +1,71 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/painting/shadows.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/theme/shadows.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/toggleable.dart';
+
+export 'package:sky/widgets/toggleable.dart' show ValueChanged;
+
+const sky.Color _kThumbOffColor = const sky.Color(0xFFFAFAFA);
+const sky.Color _kTrackOffColor = const sky.Color(0x42000000);
+const double _kSwitchWidth = 35.0;
+const double _kThumbRadius = 10.0;
+const double _kSwitchHeight = _kThumbRadius * 2.0;
+const double _kTrackHeight = 14.0;
+const double _kTrackRadius = _kTrackHeight / 2.0;
+const double _kTrackWidth = _kSwitchWidth - (_kThumbRadius - _kTrackRadius) * 2.0;
+
+class Switch extends Toggleable {
+ // TODO(jackson): Hit-test the switch so that it can respond to both taps and swipe gestures
+
+ Switch({
+ String key,
+ bool value,
+ ValueChanged onChanged
+ }) : super(key: key, value: value, onChanged: onChanged);
+
+ Size get size => const Size(_kSwitchWidth + 2.0, _kSwitchHeight + 2.0);
+
+ void customPaintCallback(sky.Canvas canvas, Size size) {
+ sky.Color thumbColor = _kThumbOffColor;
+ sky.Color trackColor = _kTrackOffColor;
+ if (value) {
+ thumbColor = Theme.of(this).accentColor;
+ trackColor = new sky.Color(thumbColor.value & 0x80FFFFFF);
+ }
+
+ // Draw the track rrect
+ sky.Paint paint = new sky.Paint()..color = trackColor;
+ paint.setStyle(sky.PaintingStyle.fill);
+ sky.Rect rect = new sky.Rect.fromLTRB(
+ 0.0,
+ _kSwitchHeight / 2.0 - _kTrackHeight / 2.0,
+ _kTrackWidth,
+ _kSwitchHeight / 2.0 + _kTrackHeight / 2.0
+ );
+ sky.RRect rrect = new sky.RRect()..setRectXY(rect, _kTrackRadius, _kTrackRadius);
+ canvas.drawRRect(rrect, paint);
+
+ // Draw the raised thumb with a shadow
+ paint.color = thumbColor;
+ var builder = new ShadowDrawLooperBuilder();
+ for (BoxShadow boxShadow in shadows[1])
+ builder.addShadow(boxShadow.offset, boxShadow.color, boxShadow.blur);
+ paint.setDrawLooper(builder.build());
+
+ // The thumb contracts slightly during the animation
+ double inset = 2.0 - (position.value - 0.5).abs() * 2.0;
+ Point thumbPos = new Point(
+ _kTrackRadius + position.value * (_kTrackWidth - _kTrackRadius * 2),
+ _kSwitchHeight / 2.0
+ );
+ canvas.drawCircle(thumbPos, _kThumbRadius - inset, paint);
+ }
+}
diff --git a/packages/flutter/lib/widgets/tabs.dart b/packages/flutter/lib/widgets/tabs.dart
new file mode 100644
index 0000000..4bfc3b3
--- /dev/null
+++ b/packages/flutter/lib/widgets/tabs.dart
@@ -0,0 +1,508 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:math' as math;
+
+import 'package:sky/animation/scroll_behavior.dart';
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/theme/colors.dart' as colors;
+import 'package:sky/theme/typography.dart' as typography;
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/default_text_style.dart';
+import 'package:sky/widgets/icon.dart';
+import 'package:sky/widgets/ink_well.dart';
+import 'package:sky/widgets/scrollable.dart';
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/widget.dart';
+import 'package:vector_math/vector_math.dart';
+
+typedef void SelectedIndexChanged(int selectedIndex);
+typedef void LayoutChanged(Size size, List<double> widths);
+
+// See https://www.google.com/design/spec/components/tabs.html#tabs-specs
+const double _kTabHeight = 46.0;
+const double _kTextAndIconTabHeight = 72.0;
+const double _kTabIndicatorHeight = 2.0;
+const double _kMinTabWidth = 72.0;
+const double _kMaxTabWidth = 264.0;
+const double _kRelativeMaxTabWidth = 56.0;
+const EdgeDims _kTabLabelPadding = const EdgeDims.symmetric(horizontal: 12.0);
+const TextStyle _kTabTextStyle = const TextStyle(textAlign: TextAlign.center);
+const int _kTabIconSize = 24;
+const double _kTabBarScrollFriction = 0.005;
+
+class TabBarParentData extends BoxParentData with
+ ContainerParentDataMixin<RenderBox> { }
+
+class RenderTabBar extends RenderBox with
+ ContainerRenderObjectMixin<RenderBox, TabBarParentData>,
+ RenderBoxContainerDefaultsMixin<RenderBox, TabBarParentData> {
+
+ RenderTabBar(this.onLayoutChanged);
+
+ int _selectedIndex;
+ int get selectedIndex => _selectedIndex;
+ void set selectedIndex(int value) {
+ if (_selectedIndex != value) {
+ _selectedIndex = value;
+ markNeedsPaint();
+ }
+ }
+
+ Color _backgroundColor;
+ Color get backgroundColor => _backgroundColor;
+ void set backgroundColor(Color value) {
+ if (_backgroundColor != value) {
+ _backgroundColor = value;
+ markNeedsPaint();
+ }
+ }
+
+ Color _indicatorColor;
+ Color get indicatorColor => _indicatorColor;
+ void set indicatorColor(Color value) {
+ if (_indicatorColor != value) {
+ _indicatorColor = value;
+ markNeedsPaint();
+ }
+ }
+
+ bool _textAndIcons;
+ bool get textAndIcons => _textAndIcons;
+ void set textAndIcons(bool value) {
+ if (_textAndIcons != value) {
+ _textAndIcons = value;
+ markNeedsLayout();
+ }
+ }
+
+ bool _scrollable;
+ bool get scrollable => _scrollable;
+ void set scrollable(bool value) {
+ if (_scrollable != value) {
+ _scrollable = value;
+ markNeedsLayout();
+ }
+ }
+
+ void setupParentData(RenderBox child) {
+ if (child.parentData is! TabBarParentData)
+ child.parentData = new TabBarParentData();
+ }
+
+ double getMinIntrinsicWidth(BoxConstraints constraints) {
+ BoxConstraints widthConstraints =
+ new BoxConstraints(maxWidth: constraints.maxWidth, maxHeight: constraints.maxHeight);
+
+ double maxWidth = 0.0;
+ RenderBox child = firstChild;
+ while (child != null) {
+ maxWidth = math.max(maxWidth, child.getMinIntrinsicWidth(widthConstraints));
+ assert(child.parentData is TabBarParentData);
+ child = child.parentData.nextSibling;
+ }
+ double width = scrollable ? maxWidth : maxWidth * childCount;
+ return constraints.constrainWidth(width);
+ }
+
+ double getMaxIntrinsicWidth(BoxConstraints constraints) {
+ BoxConstraints widthConstraints =
+ new BoxConstraints(maxWidth: constraints.maxWidth, maxHeight: constraints.maxHeight);
+
+ double maxWidth = 0.0;
+ RenderBox child = firstChild;
+ while (child != null) {
+ maxWidth = math.max(maxWidth, child.getMaxIntrinsicWidth(widthConstraints));
+ assert(child.parentData is TabBarParentData);
+ child = child.parentData.nextSibling;
+ }
+ double width = scrollable ? maxWidth : maxWidth * childCount;
+ return constraints.constrainWidth(width);
+ }
+
+ double get _tabBarHeight {
+ return (textAndIcons ? _kTextAndIconTabHeight : _kTabHeight) + _kTabIndicatorHeight;
+ }
+
+ double _getIntrinsicHeight(BoxConstraints constraints) => constraints.constrainHeight(_tabBarHeight);
+
+ double getMinIntrinsicHeight(BoxConstraints constraints) => _getIntrinsicHeight(constraints);
+
+ double getMaxIntrinsicHeight(BoxConstraints constraints) => _getIntrinsicHeight(constraints);
+
+ void layoutFixedWidthTabs() {
+ double tabWidth = size.width / childCount;
+ BoxConstraints tabConstraints =
+ new BoxConstraints.tightFor(width: tabWidth, height: size.height);
+ double x = 0.0;
+ RenderBox child = firstChild;
+ while (child != null) {
+ child.layout(tabConstraints);
+ assert(child.parentData is TabBarParentData);
+ child.parentData.position = new Point(x, 0.0);
+ x += tabWidth;
+ child = child.parentData.nextSibling;
+ }
+ }
+
+ void layoutScrollableTabs() {
+ BoxConstraints tabConstraints = new BoxConstraints(
+ minWidth: _kMinTabWidth,
+ maxWidth: math.min(size.width - _kRelativeMaxTabWidth, _kMaxTabWidth),
+ minHeight: size.height,
+ maxHeight: size.height);
+ double x = 0.0;
+ RenderBox child = firstChild;
+ while (child != null) {
+ child.layout(tabConstraints, parentUsesSize: true);
+ assert(child.parentData is TabBarParentData);
+ child.parentData.position = new Point(x, 0.0);
+ x += child.size.width;
+ child = child.parentData.nextSibling;
+ }
+ }
+
+ Size layoutSize;
+ List<double> layoutWidths;
+ LayoutChanged onLayoutChanged;
+
+ void reportLayoutChangedIfNeeded() {
+ assert(onLayoutChanged != null);
+ List<double> widths = new List<double>(childCount);
+ if (!scrollable && childCount > 0) {
+ double tabWidth = size.width / childCount;
+ widths.fillRange(0, widths.length - 1, tabWidth);
+ } else if (scrollable) {
+ RenderBox child = firstChild;
+ int childIndex = 0;
+ while (child != null) {
+ widths[childIndex++] = child.size.width;
+ child = child.parentData.nextSibling;
+ }
+ assert(childIndex == widths.length);
+ }
+ if (size != layoutSize || widths != layoutWidths) {
+ layoutSize = size;
+ layoutWidths = widths;
+ onLayoutChanged(layoutSize, layoutWidths);
+ }
+ }
+
+ void performLayout() {
+ assert(constraints is BoxConstraints);
+
+ size = constraints.constrain(new Size(constraints.maxWidth, _tabBarHeight));
+ assert(!size.isInfinite);
+
+ if (childCount == 0)
+ return;
+
+ if (scrollable)
+ layoutScrollableTabs();
+ else
+ layoutFixedWidthTabs();
+
+ if (onLayoutChanged != null)
+ reportLayoutChangedIfNeeded();
+ }
+
+ void hitTestChildren(HitTestResult result, { Point position }) {
+ defaultHitTestChildren(result, position: position);
+ }
+
+ void _paintIndicator(PaintingCanvas canvas, RenderBox selectedTab, Offset offset) {
+ if (indicatorColor == null)
+ return;
+
+ var size = new Size(selectedTab.size.width, _kTabIndicatorHeight);
+ var point = new Point(
+ selectedTab.parentData.position.x,
+ _tabBarHeight - _kTabIndicatorHeight
+ );
+ Rect rect = (point + offset) & size;
+ canvas.drawRect(rect, new Paint()..color = indicatorColor);
+ }
+
+ void paint(PaintingCanvas canvas, Offset offset) {
+ if (backgroundColor != null) {
+ double width = layoutWidths != null
+ ? layoutWidths.reduce((sum, width) => sum + width)
+ : size.width;
+ Rect rect = offset & new Size(width, size.height);
+ canvas.drawRect(rect, new Paint()..color = backgroundColor);
+ }
+
+ int index = 0;
+ RenderBox child = firstChild;
+ while (child != null) {
+ assert(child.parentData is TabBarParentData);
+ canvas.paintChild(child, child.parentData.position + offset);
+ if (index++ == selectedIndex)
+ _paintIndicator(canvas, child, offset);
+ child = child.parentData.nextSibling;
+ }
+ }
+}
+
+class TabBarWrapper extends MultiChildRenderObjectWrapper {
+ TabBarWrapper({
+ List<Widget> children,
+ this.selectedIndex,
+ this.backgroundColor,
+ this.indicatorColor,
+ this.textAndIcons,
+ this.scrollable: false,
+ this.onLayoutChanged,
+ String key
+ }) : super(key: key, children: children);
+
+ final int selectedIndex;
+ final Color backgroundColor;
+ final Color indicatorColor;
+ final bool textAndIcons;
+ final bool scrollable;
+ final LayoutChanged onLayoutChanged;
+
+ RenderTabBar get root => super.root;
+ RenderTabBar createNode() => new RenderTabBar(onLayoutChanged);
+
+ void syncRenderObject(Widget old) {
+ super.syncRenderObject(old);
+ root.selectedIndex = selectedIndex;
+ root.backgroundColor = backgroundColor;
+ root.indicatorColor = indicatorColor;
+ root.textAndIcons = textAndIcons;
+ root.scrollable = scrollable;
+ root.onLayoutChanged = onLayoutChanged;
+ }
+}
+
+class TabLabel {
+ const TabLabel({ this.text, this.icon });
+
+ final String text;
+ final String icon;
+}
+
+class Tab extends Component {
+ Tab({
+ String key,
+ this.label,
+ this.selected: false
+ }) : super(key: key) {
+ assert(label.text != null || label.icon != null);
+ }
+
+ final TabLabel label;
+ final bool selected;
+
+ Widget _buildLabelText() {
+ assert(label.text != null);
+ return new Text(label.text, style: _kTabTextStyle);
+ }
+
+ Widget _buildLabelIcon() {
+ assert(label.icon != null);
+ return new Icon(type: label.icon, size: _kTabIconSize);
+ }
+
+ Widget build() {
+ Widget labelContents;
+ if (label.icon == null) {
+ labelContents = _buildLabelText();
+ } else if (label.text == null) {
+ labelContents = _buildLabelIcon();
+ } else {
+ labelContents = new Flex(
+ <Widget>[
+ new Container(
+ child: _buildLabelIcon(),
+ margin: const EdgeDims.only(bottom: 10.0)
+ ),
+ _buildLabelText()
+ ],
+ justifyContent: FlexJustifyContent.center,
+ alignItems: FlexAlignItems.center,
+ direction: FlexDirection.vertical
+ );
+ }
+
+ Widget highlightedLabel = new Opacity(
+ child: labelContents,
+ opacity: selected ? 1.0 : 0.7
+ );
+
+ Container centeredLabel = new Container(
+ child: new Center(child: highlightedLabel),
+ constraints: new BoxConstraints(minWidth: _kMinTabWidth),
+ padding: _kTabLabelPadding
+ );
+
+ return new InkWell(child: centeredLabel);
+ }
+}
+
+class TabBar extends Scrollable {
+ TabBar({
+ String key,
+ this.labels,
+ this.selectedIndex: 0,
+ this.onChanged,
+ this.scrollable: false
+ }) : super(key: key, direction: ScrollDirection.horizontal);
+
+ Iterable<TabLabel> labels;
+ int selectedIndex;
+ SelectedIndexChanged onChanged;
+ bool scrollable;
+
+ void syncFields(TabBar source) {
+ super.syncFields(source);
+ labels = source.labels;
+ selectedIndex = source.selectedIndex;
+ onChanged = source.onChanged;
+ scrollable = source.scrollable;
+ if (!scrollable)
+ scrollTo(0.0);
+ }
+
+ ScrollBehavior createScrollBehavior() => new FlingBehavior();
+ FlingBehavior get scrollBehavior => super.scrollBehavior;
+
+ void _handleTap(int tabIndex) {
+ if (tabIndex != selectedIndex && onChanged != null)
+ onChanged(tabIndex);
+ }
+
+ Widget _toTab(TabLabel label, int tabIndex) {
+ Tab tab = new Tab(
+ label: label,
+ selected: tabIndex == selectedIndex,
+ key: label.text == null ? label.icon : label.text
+ );
+ return new Listener(
+ child: tab,
+ onGestureTap: (_) => _handleTap(tabIndex)
+ );
+ }
+
+ Size _tabBarSize;
+ List<double> _tabWidths;
+
+ void _layoutChanged(Size tabBarSize, List<double> tabWidths) {
+ setState(() {
+ _tabBarSize = tabBarSize;
+ _tabWidths = tabWidths;
+ scrollBehavior.containerSize = _tabBarSize.width;
+ scrollBehavior.contentsSize = _tabWidths.reduce((sum, width) => sum + width);
+ });
+ }
+
+ Widget buildContent() {
+ assert(labels != null && labels.isNotEmpty);
+ List<Widget> tabs = <Widget>[];
+ bool textAndIcons = false;
+ int tabIndex = 0;
+ for (TabLabel label in labels) {
+ tabs.add(_toTab(label, tabIndex++));
+ if (label.text != null && label.icon != null)
+ textAndIcons = true;
+ }
+
+ ThemeData themeData = Theme.of(this);
+ Color backgroundColor = themeData.primaryColor;
+ Color indicatorColor = themeData.accentColor;
+ if (indicatorColor == backgroundColor) {
+ indicatorColor = colors.white;
+ }
+
+ TextStyle textStyle;
+ IconThemeColor iconThemeColor;
+ switch (themeData.primaryColorBrightness) {
+ case ThemeBrightness.light:
+ textStyle = typography.black.body1;
+ iconThemeColor = IconThemeColor.black;
+ break;
+ case ThemeBrightness.dark:
+ textStyle = typography.white.body1;
+ iconThemeColor = IconThemeColor.white;
+ break;
+ }
+
+ Matrix4 transform = new Matrix4.identity();
+ transform.translate(-scrollOffset, 0.0);
+
+ return new Transform(
+ transform: transform,
+ child: new IconTheme(
+ data: new IconThemeData(color: iconThemeColor),
+ child: new DefaultTextStyle(
+ style: textStyle,
+ child: new TabBarWrapper(
+ children: tabs,
+ selectedIndex: selectedIndex,
+ backgroundColor: backgroundColor,
+ indicatorColor: indicatorColor,
+ textAndIcons: textAndIcons,
+ scrollable: scrollable,
+ onLayoutChanged: scrollable ? _layoutChanged : null
+ )
+ )
+ )
+ );
+ }
+}
+
+class TabNavigatorView {
+ TabNavigatorView({ this.label, this.builder });
+
+ final TabLabel label;
+ final Builder builder;
+
+ Widget buildContent() {
+ assert(builder != null);
+ Widget content = builder();
+ assert(content != null);
+ return content;
+ }
+}
+
+class TabNavigator extends Component {
+ TabNavigator({
+ String key,
+ this.views,
+ this.selectedIndex: 0,
+ this.onChanged,
+ this.scrollable: false
+ }) : super(key: key);
+
+ final List<TabNavigatorView> views;
+ final int selectedIndex;
+ final SelectedIndexChanged onChanged;
+ final bool scrollable;
+
+ void _handleSelectedIndexChanged(int tabIndex) {
+ if (onChanged != null)
+ onChanged(tabIndex);
+ }
+
+ Widget build() {
+ assert(views != null && views.isNotEmpty);
+ assert(selectedIndex >= 0 && selectedIndex < views.length);
+
+ TabBar tabBar = new TabBar(
+ labels: views.map((view) => view.label),
+ onChanged: _handleSelectedIndexChanged,
+ selectedIndex: selectedIndex,
+ scrollable: scrollable
+ );
+
+ Widget content = views[selectedIndex].buildContent();
+ return new Flex([tabBar, new Flexible(child: content)],
+ direction: FlexDirection.vertical
+ );
+ }
+}
diff --git a/packages/flutter/lib/widgets/task_description.dart b/packages/flutter/lib/widgets/task_description.dart
new file mode 100644
index 0000000..f2ba4ff
--- /dev/null
+++ b/packages/flutter/lib/widgets/task_description.dart
@@ -0,0 +1,21 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/mojo/activity.dart' as activity;
+import 'package:sky/widgets/theme.dart';
+import 'package:sky/widgets/widget.dart';
+
+class TaskDescription extends Component {
+
+ TaskDescription({ this.label, this.child });
+
+ final Widget child;
+ final String label;
+
+ Widget build() {
+ activity.updateTaskDescription(label, Theme.of(this).primaryColor);
+ return child;
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/theme.dart b/packages/flutter/lib/widgets/theme.dart
new file mode 100644
index 0000000..6b4fc3f
--- /dev/null
+++ b/packages/flutter/lib/widgets/theme.dart
@@ -0,0 +1,33 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/theme/theme_data.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/widget.dart';
+
+export 'package:sky/theme/theme_data.dart' show ThemeData, ThemeBrightness;
+
+class Theme extends Inherited {
+
+ Theme({
+ String key,
+ this.data,
+ Widget child
+ }) : super(key: key, child: child) {
+ assert(child != null);
+ assert(data != null);
+ }
+
+ final ThemeData data;
+
+ static final ThemeData _kFallbackTheme = new ThemeData.fallback();
+
+ static ThemeData of(Component component) {
+ Theme theme = component.inheritedOfType(Theme);
+ return theme == null ? _kFallbackTheme : theme.data;
+ }
+
+ bool syncShouldNotify(Theme old) => data != old.data;
+
+}
diff --git a/packages/flutter/lib/widgets/toggleable.dart b/packages/flutter/lib/widgets/toggleable.dart
new file mode 100644
index 0000000..6ef04d0
--- /dev/null
+++ b/packages/flutter/lib/widgets/toggleable.dart
@@ -0,0 +1,86 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:sky' as sky;
+
+import 'package:sky/animation/animation_performance.dart';
+import 'package:sky/animation/curves.dart';
+import 'package:sky/widgets/animated_component.dart';
+import 'package:sky/widgets/basic.dart';
+
+typedef void ValueChanged(value);
+
+const Duration _kCheckDuration = const Duration(milliseconds: 200);
+
+abstract class Toggleable extends AnimatedComponent {
+
+ Toggleable({
+ String key,
+ this.value,
+ this.onChanged
+ }) : super(key: key);
+
+ bool value;
+ ValueChanged onChanged;
+
+ AnimatedType<double> _position;
+ AnimatedType<double> get position => _position;
+
+ AnimationPerformance _performance;
+ AnimationPerformance get performance => _performance;
+
+ void initState() {
+ _position = new AnimatedType<double>(0.0, end: 1.0);
+ _performance = new AnimationPerformance()
+ ..variable = position
+ ..duration = _kCheckDuration
+ ..progress = value ? 1.0 : 0.0;
+ watch(performance);
+ }
+
+ void syncFields(Toggleable source) {
+ onChanged = source.onChanged;
+ if (value != source.value) {
+ value = source.value;
+ // TODO(abarth): Setting the curve on the position means there's a
+ // discontinuity when we reverse the timeline.
+ if (value) {
+ position.curve = curveUp;
+ performance.play();
+ } else {
+ position.curve = curveDown;
+ performance.reverse();
+ }
+ }
+ super.syncFields(source);
+ }
+
+ void _handleClick(sky.Event e) {
+ onChanged(!value);
+ }
+
+ // Override these to draw yourself
+ void customPaintCallback(sky.Canvas canvas, Size size);
+ Size get size;
+
+ EdgeDims get margin => const EdgeDims.symmetric(horizontal: 5.0);
+ double get duration => 200.0;
+ Curve get curveUp => easeIn;
+ Curve get curveDown => easeOut;
+
+ Widget build() {
+ return new Listener(
+ child: new Container(
+ margin: margin,
+ width: size.width,
+ height: size.height,
+ child: new CustomPaint(
+ token: position.value,
+ callback: customPaintCallback
+ )
+ ),
+ onGestureTap: _handleClick
+ );
+ }
+}
diff --git a/packages/flutter/lib/widgets/tool_bar.dart b/packages/flutter/lib/widgets/tool_bar.dart
new file mode 100644
index 0000000..3ed8bf9
--- /dev/null
+++ b/packages/flutter/lib/widgets/tool_bar.dart
@@ -0,0 +1,82 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:sky/widgets/theme.dart';
+
+import 'package:sky/painting/text_style.dart';
+import 'package:sky/rendering/flex.dart';
+import 'package:sky/theme/shadows.dart';
+import 'package:sky/theme/typography.dart' as typography;
+import 'package:sky/theme/view_configuration.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/default_text_style.dart';
+import 'package:sky/widgets/icon.dart';
+
+class ToolBar extends Component {
+
+ ToolBar({
+ String key,
+ this.left,
+ this.center,
+ this.right,
+ this.backgroundColor
+ }) : super(key: key);
+
+ final Widget left;
+ final Widget center;
+ final List<Widget> right;
+ final Color backgroundColor;
+
+ Widget build() {
+ Color toolbarColor = backgroundColor;
+ IconThemeData iconThemeData;
+ TextStyle defaultTextStyle = typography.white.title;
+ if (toolbarColor == null) {
+ ThemeData themeData = Theme.of(this);
+ toolbarColor = themeData.primaryColor;
+ if (themeData.primaryColorBrightness == ThemeBrightness.light) {
+ defaultTextStyle = typography.black.title;
+ iconThemeData = const IconThemeData(color: IconThemeColor.black);
+ } else {
+ iconThemeData = const IconThemeData(color: IconThemeColor.white);
+ }
+ }
+
+ List<Widget> children = new List<Widget>();
+ if (left != null)
+ children.add(left);
+
+ children.add(
+ new Flexible(
+ child: new Padding(
+ child: center,
+ padding: new EdgeDims.only(left: 24.0)
+ )
+ )
+ );
+
+ if (right != null)
+ children.addAll(right);
+
+ Widget content = new Container(
+ child: new DefaultTextStyle(
+ style: defaultTextStyle,
+ child: new Flex(
+ [new Container(child: new Flex(children), height: kToolBarHeight)],
+ alignItems: FlexAlignItems.end
+ )
+ ),
+ padding: new EdgeDims.symmetric(horizontal: 8.0),
+ decoration: new BoxDecoration(
+ backgroundColor: toolbarColor,
+ boxShadow: shadows[2]
+ )
+ );
+
+ if (iconThemeData != null)
+ content = new IconTheme(data: iconThemeData, child: content);
+ return content;
+ }
+
+}
diff --git a/packages/flutter/lib/widgets/variable_height_scrollable.dart b/packages/flutter/lib/widgets/variable_height_scrollable.dart
new file mode 100644
index 0000000..58653ae
--- /dev/null
+++ b/packages/flutter/lib/widgets/variable_height_scrollable.dart
@@ -0,0 +1,68 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:collection';
+
+import 'package:sky/animation/scroll_behavior.dart';
+import 'package:sky/widgets/basic.dart';
+import 'package:sky/widgets/block_viewport.dart';
+import 'package:sky/widgets/scrollable.dart';
+import 'package:sky/widgets/widget.dart';
+
+class VariableHeightScrollable extends Scrollable {
+ VariableHeightScrollable({
+ String key,
+ this.builder,
+ this.token
+ }) : super(key: key);
+
+ IndexedBuilder builder;
+ Object token;
+ bool _contentsChanged = true;
+
+ void syncFields(VariableHeightScrollable source) {
+ builder = source.builder;
+ if (token != source.token)
+ _contentsChanged = true;
+ token = source.token;
+ super.syncFields(source);
+ }
+
+ ScrollBehavior createScrollBehavior() => new OverscrollBehavior();
+ OverscrollBehavior get scrollBehavior => super.scrollBehavior;
+
+ void _handleSizeChanged(Size newSize) {
+ scrollBehavior.containerSize = newSize.height;
+ }
+
+ void _handleLayoutChanged(
+ int firstVisibleChildIndex,
+ int visibleChildCount,
+ UnmodifiableListView<double> childOffsets,
+ bool didReachLastChild
+ ) {
+ assert(childOffsets.length > 0);
+ if (didReachLastChild) {
+ scrollBehavior.contentsSize = childOffsets.last;
+ if (_contentsChanged && scrollOffset > scrollBehavior.maxScrollOffset) {
+ _contentsChanged = false;
+ settleScrollOffset();
+ }
+ } else {
+ scrollBehavior.contentsSize = double.INFINITY;
+ }
+ }
+
+ Widget buildContent() {
+ return new SizeObserver(
+ callback: _handleSizeChanged,
+ child: new BlockViewport(
+ builder: builder,
+ onLayoutChanged: _handleLayoutChanged,
+ startOffset: scrollOffset,
+ token: token
+ )
+ );
+ }
+}
diff --git a/packages/flutter/lib/widgets/widget.dart b/packages/flutter/lib/widgets/widget.dart
new file mode 100644
index 0000000..81b7ff5
--- /dev/null
+++ b/packages/flutter/lib/widgets/widget.dart
@@ -0,0 +1,1166 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'dart:async';
+import 'dart:collection';
+import 'dart:sky' as sky;
+
+import 'package:sky/base/debug.dart';
+import 'package:sky/base/hit_test.dart';
+import 'package:sky/mojo/activity.dart' as activity;
+import 'package:sky/rendering/box.dart';
+import 'package:sky/rendering/object.dart';
+import 'package:sky/rendering/sky_binding.dart';
+
+export 'package:sky/rendering/box.dart' show BoxConstraints, BoxDecoration, Border, BorderSide, EdgeDims;
+export 'package:sky/rendering/flex.dart' show FlexDirection;
+export 'package:sky/rendering/object.dart' show Point, Offset, Size, Rect, Color, Paint, Path;
+
+final bool _shouldLogRenderDuration = false;
+
+typedef Widget Builder();
+typedef void WidgetTreeWalker(Widget);
+
+/// A base class for elements of the widget tree
+abstract class Widget {
+
+ Widget({ String key }) : _key = key {
+ assert(_isConstructedDuringBuild());
+ }
+
+ // TODO(jackson): Remove this workaround for limitation of Dart mixins
+ Widget._withKey(String key) : _key = key {
+ assert(_isConstructedDuringBuild());
+ }
+
+ // you should not build the UI tree ahead of time, build it only during build()
+ bool _isConstructedDuringBuild() => this is AbstractWidgetRoot || this is App || _inRenderDirtyComponents || _inLayoutCallbackBuilder > 0;
+
+ String _key;
+
+ /// A semantic identifer for this widget
+ ///
+ /// Keys are used to find matches when synchronizing two widget trees, for
+ /// example after a [Component] rebuilds. Without keys, two widgets can match
+ /// if their runtimeType matches. With keys, the keys must match as well.
+ /// Assigning a key to a widget can improve performance by causing the
+ /// framework to sync widgets that share a lot of common structure and can
+ /// help match stateful components semantically rather than positionally.
+ String get key => _key;
+
+ Widget _parent;
+
+ /// The parent of this widget in the widget tree.
+ Widget get parent => _parent;
+
+ bool _mounted = false;
+ bool _wasMounted = false;
+ bool get mounted => _mounted;
+ static bool _notifyingMountStatus = false;
+ static List<Widget> _mountedChanged = new List<Widget>();
+
+ /// Called during the synchronizing process to update the widget's parent.
+ void setParent(Widget newParent) {
+ assert(!_notifyingMountStatus);
+ if (_parent == newParent)
+ return;
+ _parent = newParent;
+ if (newParent == null) {
+ if (_mounted) {
+ _mounted = false;
+ _mountedChanged.add(this);
+ }
+ } else {
+ assert(newParent._mounted);
+ if (_parent._mounted != _mounted) {
+ _mounted = _parent._mounted;
+ _mountedChanged.add(this);
+ }
+ }
+ }
+
+ /// Walks the immediate children of this widget
+ ///
+ /// Override this if you have children and call walker on each child.
+ /// Note that you may be called before the child has had its parent
+ /// pointer set to point to you. Your walker, and any methods it
+ /// invokes on your descendants, should not rely on the ancestor
+ /// chain being correctly configured at this point.
+ void walkChildren(WidgetTreeWalker walker) { }
+
+ static void _notifyMountStatusChanged() {
+ try {
+ sky.tracing.begin("Widget._notifyMountStatusChanged");
+ _notifyingMountStatus = true;
+ for (Widget node in _mountedChanged) {
+ if (node._wasMounted != node._mounted) {
+ if (node._mounted)
+ node.didMount();
+ else
+ node.didUnmount();
+ node._wasMounted = node._mounted;
+ }
+ }
+ _mountedChanged.clear();
+ } finally {
+ _notifyingMountStatus = false;
+ sky.tracing.end("Widget._notifyMountStatusChanged");
+ }
+ }
+
+ /// Override this function to learn when this [Widget] enters the widget tree.
+ void didMount() { }
+
+ /// Override this function to learn when this [Widget] leaves the widget tree.
+ void didUnmount() { }
+
+ RenderObject _root;
+
+ /// The underlying [RenderObject] associated with this [Widget].
+ RenderObject get root => _root;
+
+ // Subclasses which implements Nodes that become stateful may return true
+ // if the node has become stateful and should be retained.
+ // This is called immediately before _sync().
+ // Component.retainStatefulNodeIfPossible() calls syncFields().
+ bool retainStatefulNodeIfPossible(Widget newNode) => false;
+
+ void _sync(Widget old, dynamic slot);
+ void updateSlot(dynamic newSlot);
+ // 'slot' is the identifier that the ancestor RenderObjectWrapper uses to know
+ // where to put this descendant. If you just defer to a child, then make sure
+ // to pass them the slot.
+
+ Widget findAncestorRenderObjectWrapper() {
+ var ancestor = _parent;
+ while (ancestor != null && ancestor is! RenderObjectWrapper)
+ ancestor = ancestor._parent;
+ return ancestor;
+ }
+
+ void remove() {
+ _root = null;
+ setParent(null);
+ }
+
+ void removeChild(Widget node) {
+ // Call this when we no longer have a child equivalent to node.
+ // For example, when our child has changed type, or has been set to null.
+ // Do not call this when our child has been replaced by an equivalent but
+ // newer instance that will sync() with the old one, since in that case
+ // the subtree starting from the old node, as well as the render tree that
+ // belonged to the old node, continue to live on in the replacement node.
+ node.remove();
+ assert(node.parent == null);
+ }
+
+ void detachRoot();
+
+ // Returns the child which should be retained as the child of this node.
+ Widget syncChild(Widget newNode, Widget oldNode, dynamic slot) {
+
+ if (newNode == oldNode) {
+ assert(newNode == null || newNode.mounted);
+ assert(newNode is! RenderObjectWrapper ||
+ (newNode is RenderObjectWrapper && newNode._ancestor != null)); // TODO(ianh): Simplify this once the analyzer is cleverer
+ if (newNode != null)
+ newNode.setParent(this);
+ return newNode; // Nothing to do. Subtrees must be identical.
+ }
+
+ if (newNode == null) {
+ // the child in this slot has gone away
+ assert(oldNode.mounted);
+ oldNode.detachRoot();
+ removeChild(oldNode);
+ assert(!oldNode.mounted);
+ return null;
+ }
+
+ if (oldNode != null) {
+ if (oldNode.runtimeType == newNode.runtimeType && oldNode.key == newNode.key) {
+ if (oldNode.retainStatefulNodeIfPossible(newNode)) {
+ assert(oldNode.mounted);
+ assert(!newNode.mounted);
+ oldNode.setParent(this);
+ oldNode._sync(newNode, slot);
+ assert(oldNode.root is RenderObject);
+ return oldNode;
+ } else {
+ oldNode.setParent(null);
+ }
+ } else {
+ assert(oldNode.mounted);
+ oldNode.detachRoot();
+ removeChild(oldNode);
+ oldNode = null;
+ }
+ }
+
+ assert(oldNode == null || (oldNode.mounted == false && oldNode.parent == null));
+ assert(!newNode.mounted);
+ newNode.setParent(this);
+ newNode._sync(oldNode, slot);
+ assert(newNode.root is RenderObject);
+ return newNode;
+ }
+
+ String _adjustPrefixWithParentCheck(Widget child, String prefix) {
+ if (child.parent == this)
+ return prefix;
+ if (child.parent == null)
+ return '$prefix [[DISCONNECTED]] ';
+ return '$prefix [[PARENT IS ${child.parent.toStringName()}]] ';
+ }
+
+ String toString([String prefix = '', String startPrefix = '']) {
+ String childrenString = '';
+ List<Widget> children = new List<Widget>();
+ walkChildren(children.add);
+ if (children.length > 0) {
+ Widget lastChild = children.removeLast();
+ String nextStartPrefix = prefix + ' +-';
+ String nextPrefix = prefix + ' | ';
+ for (Widget child in children)
+ childrenString += child.toString(nextPrefix, _adjustPrefixWithParentCheck(child, nextStartPrefix));
+ nextStartPrefix = prefix + ' \'-';
+ nextPrefix = prefix + ' ';
+ childrenString += lastChild.toString(nextPrefix, _adjustPrefixWithParentCheck(lastChild, nextStartPrefix));
+ }
+ return '$startPrefix${toStringName()}\n$childrenString';
+ }
+ String toStringName() {
+ if (key == null)
+ return '$runtimeType(unkeyed; hashCode=$hashCode)';
+ return '$runtimeType("$key"; hashCode=$hashCode)';
+ }
+
+}
+
+
+// Descendants of TagNode provide a way to tag RenderObjectWrapper and
+// Component nodes with annotations, such as event listeners,
+// stylistic information, etc.
+abstract class TagNode extends Widget {
+
+ TagNode(Widget child, { String key })
+ : this.child = child, super(key: key);
+
+ // TODO(jackson): Remove this workaround for limitation of Dart mixins
+ TagNode._withKey(Widget child, String key)
+ : this.child = child, super._withKey(key);
+
+ Widget child;
+
+ void walkChildren(WidgetTreeWalker walker) {
+ if (child != null)
+ walker(child);
+ }
+
+ void _sync(Widget old, dynamic slot) {
+ Widget oldChild = old == null ? null : (old as TagNode).child;
+ child = syncChild(child, oldChild, slot);
+ assert(child.parent == this);
+ assert(child.root != null);
+ _root = child.root;
+ assert(_root == root); // in case a subclass reintroduces it
+ }
+
+ void updateSlot(dynamic newSlot) {
+ child.updateSlot(newSlot);
+ }
+
+ void remove() {
+ if (child != null)
+ removeChild(child);
+ super.remove();
+ }
+
+ void detachRoot() {
+ if (child != null)
+ child.detachRoot();
+ }
+
+}
+
+class ParentDataNode extends TagNode {
+ ParentDataNode(Widget child, this.parentData, { String key })
+ : super(child, key: key);
+ final ParentData parentData;
+}
+
+abstract class Inherited extends TagNode {
+
+ Inherited({ String key, Widget child }) : super._withKey(child, key);
+
+ void _sync(Widget old, dynamic slot) {
+ if (old != null && syncShouldNotify(old)) {
+ final Type ourRuntimeType = runtimeType;
+ void notifyChildren(Widget child) {
+ if (child is Component &&
+ child._dependencies != null &&
+ child._dependencies.contains(ourRuntimeType))
+ child._dependenciesChanged();
+ if (child.runtimeType != ourRuntimeType)
+ child.walkChildren(notifyChildren);
+ }
+ walkChildren(notifyChildren);
+ }
+ super._sync(old, slot);
+ }
+
+ bool syncShouldNotify(Inherited old);
+
+}
+
+typedef void GestureEventListener(sky.GestureEvent e);
+typedef void PointerEventListener(sky.PointerEvent e);
+typedef void EventListener(sky.Event e);
+
+class Listener extends TagNode {
+
+ Listener({
+ String key,
+ Widget child,
+ EventListener onWheel,
+ GestureEventListener onGestureFlingCancel,
+ GestureEventListener onGestureFlingStart,
+ GestureEventListener onGestureScrollStart,
+ GestureEventListener onGestureScrollUpdate,
+ GestureEventListener onGestureTap,
+ GestureEventListener onGestureTapDown,
+ PointerEventListener onPointerCancel,
+ PointerEventListener onPointerDown,
+ PointerEventListener onPointerMove,
+ PointerEventListener onPointerUp,
+ Map<String, sky.EventListener> custom
+ }) : listeners = _createListeners(
+ onWheel: onWheel,
+ onGestureFlingCancel: onGestureFlingCancel,
+ onGestureFlingStart: onGestureFlingStart,
+ onGestureScrollUpdate: onGestureScrollUpdate,
+ onGestureScrollStart: onGestureScrollStart,
+ onGestureTap: onGestureTap,
+ onGestureTapDown: onGestureTapDown,
+ onPointerCancel: onPointerCancel,
+ onPointerDown: onPointerDown,
+ onPointerMove: onPointerMove,
+ onPointerUp: onPointerUp,
+ custom: custom
+ ),
+ super(child, key: key);
+
+ final Map<String, sky.EventListener> listeners;
+
+ static Map<String, sky.EventListener> _createListeners({
+ EventListener onWheel,
+ GestureEventListener onGestureFlingCancel,
+ GestureEventListener onGestureFlingStart,
+ GestureEventListener onGestureScrollStart,
+ GestureEventListener onGestureScrollUpdate,
+ GestureEventListener onGestureTap,
+ GestureEventListener onGestureTapDown,
+ PointerEventListener onPointerCancel,
+ PointerEventListener onPointerDown,
+ PointerEventListener onPointerMove,
+ PointerEventListener onPointerUp,
+ Map<String, sky.EventListener> custom
+ }) {
+ var listeners = custom != null ?
+ new HashMap<String, sky.EventListener>.from(custom) :
+ new HashMap<String, sky.EventListener>();
+
+ if (onWheel != null)
+ listeners['wheel'] = onWheel;
+ if (onGestureFlingCancel != null)
+ listeners['gestureflingcancel'] = onGestureFlingCancel;
+ if (onGestureFlingStart != null)
+ listeners['gestureflingstart'] = onGestureFlingStart;
+ if (onGestureScrollStart != null)
+ listeners['gesturescrollstart'] = onGestureScrollStart;
+ if (onGestureScrollUpdate != null)
+ listeners['gesturescrollupdate'] = onGestureScrollUpdate;
+ if (onGestureTap != null)
+ listeners['gesturetap'] = onGestureTap;
+ if (onGestureTapDown != null)
+ listeners['gesturetapdown'] = onGestureTapDown;
+ if (onPointerCancel != null)
+ listeners['pointercancel'] = onPointerCancel;
+ if (onPointerDown != null)
+ listeners['pointerdown'] = onPointerDown;
+ if (onPointerMove != null)
+ listeners['pointermove'] = onPointerMove;
+ if (onPointerUp != null)
+ listeners['pointerup'] = onPointerUp;
+
+ return listeners;
+ }
+
+ void _handleEvent(sky.Event e) {
+ sky.EventListener listener = listeners[e.type];
+ if (listener != null) {
+ listener(e);
+ }
+ }
+
+}
+
+abstract class Component extends Widget {
+
+ Component({ String key })
+ : _order = _currentOrder + 1,
+ super._withKey(key);
+
+ static Component _currentlyBuilding;
+ bool get _isBuilding => _currentlyBuilding == this;
+
+ bool _dirty = true;
+
+ Widget _built;
+ dynamic _slot; // cached slot from the last time we were synced
+
+ void updateSlot(dynamic newSlot) {
+ _slot = newSlot;
+ if (_built != null)
+ _built.updateSlot(newSlot);
+ }
+
+ void walkChildren(WidgetTreeWalker walker) {
+ if (_built != null)
+ walker(_built);
+ }
+
+ void remove() {
+ assert(_built != null);
+ assert(root != null);
+ removeChild(_built);
+ _built = null;
+ super.remove();
+ }
+
+ void detachRoot() {
+ assert(_built != null);
+ assert(root != null);
+ _built.detachRoot();
+ }
+
+ Set<Type> _dependencies;
+ Inherited inheritedOfType(Type targetType) {
+ if (_dependencies == null)
+ _dependencies = new Set<Type>();
+ _dependencies.add(targetType);
+ Widget ancestor = parent;
+ while (ancestor != null && ancestor.runtimeType != targetType)
+ ancestor = ancestor.parent;
+ return ancestor;
+ }
+ void _dependenciesChanged() {
+ // called by Inherited.sync()
+ scheduleBuild();
+ }
+
+ // order corresponds to _build_ order, not depth in the tree.
+ // All the Components built by a particular other Component will have the
+ // same order, regardless of whether one is subsequently inserted
+ // into another. The order is used to not tell a Component to
+ // rebuild if the Component that it built has itself been rebuilt.
+ final int _order;
+ static int _currentOrder = 0;
+
+ // There are three cases here:
+ // 1) Building for the first time:
+ // assert(_built == null && old == null)
+ // 2) Re-building (because a dirty flag got set):
+ // assert(_built != null && old == null)
+ // 3) Syncing against an old version
+ // assert(_built == null && old != null)
+ void _sync(Component old, dynamic slot) {
+ assert(_built == null || old == null);
+
+ updateSlot(slot);
+
+ var oldBuilt;
+ if (old == null) {
+ oldBuilt = _built;
+ } else {
+ assert(_built == null);
+ oldBuilt = old._built;
+ }
+
+ int lastOrder = _currentOrder;
+ _currentOrder = _order;
+ _currentlyBuilding = this;
+ _built = build();
+ assert(_built != null);
+ _currentlyBuilding = null;
+ _currentOrder = lastOrder;
+
+ _built = syncChild(_built, oldBuilt, slot);
+ assert(_built != null);
+ assert(_built.parent == this);
+ _dirty = false;
+ _root = _built.root;
+ assert(_root == root); // in case a subclass reintroduces it
+ assert(root != null);
+ }
+
+ void _buildIfDirty() {
+ if (!_dirty || !_mounted)
+ return;
+ assert(root != null);
+ _sync(null, _slot);
+ }
+
+ void scheduleBuild() {
+ if (_isBuilding || _dirty || !_mounted)
+ return;
+ _dirty = true;
+ _scheduleComponentForRender(this);
+ }
+
+ Widget build();
+
+}
+
+abstract class StatefulComponent extends Component {
+
+ StatefulComponent({ String key }) : super(key: key);
+
+ bool _disqualifiedFromEverAppearingAgain = false;
+ bool _isStateInitialized = false;
+
+ void didMount() {
+ assert(!_disqualifiedFromEverAppearingAgain);
+ super.didMount();
+ }
+
+ void _buildIfDirty() {
+ assert(!_disqualifiedFromEverAppearingAgain);
+ super._buildIfDirty();
+ }
+
+ bool retainStatefulNodeIfPossible(StatefulComponent newNode) {
+ assert(!_disqualifiedFromEverAppearingAgain);
+ assert(newNode != null);
+ assert(runtimeType == newNode.runtimeType);
+ assert(key == newNode.key);
+ assert(_built != null);
+ newNode._disqualifiedFromEverAppearingAgain = true;
+
+ newNode._built = _built;
+ _built = null;
+ _dirty = true;
+
+ return true;
+ }
+
+ // because our retainStatefulNodeIfPossible() method returns true,
+ // when _sync is called, our 'old' is actually the new instance that
+ // we are to copy state from.
+ void _sync(Widget old, dynamic slot) {
+ assert(!_disqualifiedFromEverAppearingAgain);
+ // TODO(ianh): _sync should only be called once when old == null
+ if (old == null && !_isStateInitialized) {
+ initState();
+ _isStateInitialized = true;
+ }
+ if (old != null)
+ syncFields(old);
+ super._sync(old, slot);
+ }
+
+ // Stateful components can override initState if they want
+ // to do non-trivial work to initialize state. This is
+ // always called before build().
+ void initState() { }
+
+ // This is called by _sync(). Derived classes should override this
+ // method to update `this` to account for the new values the parent
+ // passed to `source`. Make sure to call super.syncFields(source)
+ // unless you are extending StatefulComponent directly.
+ void syncFields(Component source);
+
+ Widget syncChild(Widget node, Widget oldNode, dynamic slot) {
+ assert(!_disqualifiedFromEverAppearingAgain);
+ return super.syncChild(node, oldNode, slot);
+ }
+
+ void setState(Function fn()) {
+ assert(!_disqualifiedFromEverAppearingAgain);
+ fn();
+ scheduleBuild();
+ }
+}
+
+Set<Component> _dirtyComponents = new Set<Component>();
+bool _buildScheduled = false;
+bool _inRenderDirtyComponents = false;
+int _inLayoutCallbackBuilder = 0;
+
+class LayoutCallbackBuilderHandle { bool _active = true; }
+LayoutCallbackBuilderHandle enterLayoutCallbackBuilder() {
+ if (!inDebugBuild)
+ return null;
+ _inLayoutCallbackBuilder += 1;
+ return new LayoutCallbackBuilderHandle();
+}
+void exitLayoutCallbackBuilder(LayoutCallbackBuilderHandle handle) {
+ if (!inDebugBuild)
+ return;
+ assert(handle._active);
+ handle._active = false;
+ _inLayoutCallbackBuilder -= 1;
+}
+
+List<int> _debugFrameTimes = <int>[];
+
+void _absorbDirtyComponents(List<Component> list) {
+ list.addAll(_dirtyComponents);
+ _dirtyComponents.clear();
+ list.sort((Component a, Component b) => a._order - b._order);
+}
+
+void _buildDirtyComponents() {
+ Stopwatch sw;
+ if (_shouldLogRenderDuration)
+ sw = new Stopwatch()..start();
+
+ _inRenderDirtyComponents = true;
+ try {
+ sky.tracing.begin('Widgets._buildDirtyComponents');
+ List<Component> sortedDirtyComponents = new List<Component>();
+ _absorbDirtyComponents(sortedDirtyComponents);
+ int index = 0;
+ while (index < sortedDirtyComponents.length) {
+ Component component = sortedDirtyComponents[index];
+ component._buildIfDirty();
+ if (_dirtyComponents.length > 0) {
+ // the following assert verifies that we're not rebuilding anyone twice in one frame
+ assert(_dirtyComponents.every((Component component) => !sortedDirtyComponents.contains(component)));
+ _absorbDirtyComponents(sortedDirtyComponents);
+ index = 0;
+ } else {
+ index += 1;
+ }
+ }
+ } finally {
+ _buildScheduled = false;
+ _inRenderDirtyComponents = false;
+ sky.tracing.end('Widgets._buildDirtyComponents');
+ }
+
+ Widget._notifyMountStatusChanged();
+
+ if (_shouldLogRenderDuration) {
+ sw.stop();
+ _debugFrameTimes.add(sw.elapsedMicroseconds);
+ if (_debugFrameTimes.length >= 1000) {
+ _debugFrameTimes.sort();
+ const int i = 99;
+ print('_buildDirtyComponents: ${i+1}th fastest frame out of the last ${_debugFrameTimes.length}: ${_debugFrameTimes[i]} microseconds');
+ _debugFrameTimes.clear();
+ }
+ }
+}
+
+void _scheduleComponentForRender(Component c) {
+ _dirtyComponents.add(c);
+ if (!_buildScheduled) {
+ _buildScheduled = true;
+ new Future.microtask(_buildDirtyComponents);
+ }
+}
+
+
+// RenderObjectWrappers correspond to a desired state of a RenderObject.
+// They are fully immutable, with one exception: A Widget which is a
+// Component which lives within an MultiChildRenderObjectWrapper's
+// children list, may be replaced with the "old" instance if it has
+// become stateful.
+abstract class RenderObjectWrapper extends Widget {
+
+ RenderObjectWrapper({ String key }) : super(key: key);
+
+ RenderObject createNode();
+
+ static final Map<RenderObject, RenderObjectWrapper> _nodeMap =
+ new HashMap<RenderObject, RenderObjectWrapper>();
+ static RenderObjectWrapper _getMounted(RenderObject node) => _nodeMap[node];
+
+ RenderObjectWrapper _ancestor;
+ void insertChildRoot(RenderObjectWrapper child, dynamic slot);
+ void detachChildRoot(RenderObjectWrapper child);
+
+ void retainStatefulRenderObjectWrapper(RenderObjectWrapper newNode) {
+ newNode._root = _root;
+ newNode._ancestor = _ancestor;
+ }
+
+ void _sync(RenderObjectWrapper old, dynamic slot) {
+ // TODO(abarth): We should split RenderObjectWrapper into two pieces so that
+ // RenderViewObject doesn't need to inherit all this code it
+ // doesn't need.
+ assert(parent != null || this is RenderViewWrapper);
+ if (old == null) {
+ _root = createNode();
+ assert(_root != null);
+ _ancestor = findAncestorRenderObjectWrapper();
+ if (_ancestor is RenderObjectWrapper)
+ _ancestor.insertChildRoot(this, slot);
+ } else {
+ assert(old is RenderObjectWrapper);
+ _root = old.root;
+ _ancestor = old._ancestor;
+ assert(_root != null);
+ }
+ assert(_root == root); // in case a subclass reintroduces it
+ assert(root != null);
+ assert(mounted);
+ _nodeMap[root] = this;
+ syncRenderObject(old);
+ }
+
+ void updateSlot(dynamic newSlot) {
+ // We never use the slot except during sync(), in which
+ // case our parent is handing it to us anyway.
+ // We don't need to propagate this to our children, since
+ // we give them their own slots for them to fit into us.
+ }
+
+ void syncRenderObject(RenderObjectWrapper old) {
+ ParentData parentData = null;
+ Widget ancestor = parent;
+ while (ancestor != null && ancestor is! RenderObjectWrapper) {
+ if (ancestor is ParentDataNode && ancestor.parentData != null) {
+ if (parentData != null)
+ parentData.merge(ancestor.parentData); // this will throw if the types aren't the same
+ else
+ parentData = ancestor.parentData;
+ }
+ ancestor = ancestor.parent;
+ }
+ if (parentData != null) {
+ assert(root.parentData != null);
+ root.parentData.merge(parentData); // this will throw if the types aren't appropriate
+ if (parent.root != null)
+ parent.root.markNeedsLayout();
+ }
+ }
+
+ void remove() {
+ assert(root != null);
+ _nodeMap.remove(root);
+ super.remove();
+ }
+
+ void detachRoot() {
+ assert(_ancestor != null);
+ assert(root != null);
+ _ancestor.detachChildRoot(this);
+ }
+
+}
+
+abstract class LeafRenderObjectWrapper extends RenderObjectWrapper {
+
+ LeafRenderObjectWrapper({ String key }) : super(key: key);
+
+ void insertChildRoot(RenderObjectWrapper child, dynamic slot) {
+ assert(false);
+ }
+
+ void detachChildRoot(RenderObjectWrapper child) {
+ assert(false);
+ }
+
+}
+
+abstract class OneChildRenderObjectWrapper extends RenderObjectWrapper {
+
+ OneChildRenderObjectWrapper({ String key, Widget child })
+ : _child = child, super(key: key);
+
+ Widget _child;
+ Widget get child => _child;
+
+ void walkChildren(WidgetTreeWalker walker) {
+ if (child != null)
+ walker(child);
+ }
+
+ void syncRenderObject(RenderObjectWrapper old) {
+ super.syncRenderObject(old);
+ Widget oldChild = old == null ? null : (old as OneChildRenderObjectWrapper).child;
+ Widget newChild = child;
+ _child = syncChild(newChild, oldChild, null);
+ assert((newChild == null && child == null) || (newChild != null && child.parent == this));
+ assert(oldChild == null || child == oldChild || oldChild.parent == null);
+ }
+
+ void insertChildRoot(RenderObjectWrapper child, dynamic slot) {
+ final root = this.root; // TODO(ianh): Remove this once the analyzer is cleverer
+ assert(root is RenderObjectWithChildMixin);
+ assert(slot == null);
+ root.child = child.root;
+ assert(root == this.root); // TODO(ianh): Remove this once the analyzer is cleverer
+ }
+
+ void detachChildRoot(RenderObjectWrapper child) {
+ final root = this.root; // TODO(ianh): Remove this once the analyzer is cleverer
+ assert(root is RenderObjectWithChildMixin);
+ assert(root.child == child.root);
+ root.child = null;
+ assert(root == this.root); // TODO(ianh): Remove this once the analyzer is cleverer
+ }
+
+ void remove() {
+ if (child != null)
+ removeChild(child);
+ super.remove();
+ }
+}
+
+abstract class MultiChildRenderObjectWrapper extends RenderObjectWrapper {
+
+ // In MultiChildRenderObjectWrapper subclasses, slots are RenderObject nodes
+ // to use as the "insert before" sibling in ContainerRenderObjectMixin.add() calls
+
+ MultiChildRenderObjectWrapper({ String key, List<Widget> children })
+ : this.children = children == null ? const [] : children,
+ super(key: key) {
+ assert(!_debugHasDuplicateIds());
+ }
+
+ final List<Widget> children;
+
+ void walkChildren(WidgetTreeWalker walker) {
+ for (Widget child in children)
+ walker(child);
+ }
+
+ void insertChildRoot(RenderObjectWrapper child, dynamic slot) {
+ final root = this.root; // TODO(ianh): Remove this once the analyzer is cleverer
+ assert(slot == null || slot is RenderObject);
+ assert(root is ContainerRenderObjectMixin);
+ root.add(child.root, before: slot);
+ assert(root == this.root); // TODO(ianh): Remove this once the analyzer is cleverer
+ }
+
+ void detachChildRoot(RenderObjectWrapper child) {
+ final root = this.root; // TODO(ianh): Remove this once the analyzer is cleverer
+ assert(root is ContainerRenderObjectMixin);
+ assert(child.root.parent == root);
+ root.remove(child.root);
+ assert(root == this.root); // TODO(ianh): Remove this once the analyzer is cleverer
+ }
+
+ void remove() {
+ assert(children != null);
+ for (var child in children) {
+ assert(child != null);
+ removeChild(child);
+ }
+ super.remove();
+ }
+
+ bool _debugHasDuplicateIds() {
+ var idSet = new HashSet<String>();
+ for (var child in children) {
+ assert(child != null);
+ if (child.key == null)
+ continue; // when these nodes are reordered, we just reassign the data
+
+ if (!idSet.add(child.key)) {
+ throw '''If multiple keyed nodes exist as children of another node, they must have unique keys. $this has duplicate child key "${child.key}".''';
+ }
+ }
+ return false;
+ }
+
+ void syncRenderObject(MultiChildRenderObjectWrapper old) {
+ super.syncRenderObject(old);
+
+ final root = this.root; // TODO(ianh): Remove this once the analyzer is cleverer
+ if (root is! ContainerRenderObjectMixin)
+ return;
+
+ var startIndex = 0;
+ var endIndex = children.length;
+
+ var oldChildren = old == null ? [] : old.children;
+ var oldStartIndex = 0;
+ var oldEndIndex = oldChildren.length;
+
+ RenderObject nextSibling = null;
+ Widget currentNode = null;
+ Widget oldNode = null;
+
+ void sync(int atIndex) {
+ children[atIndex] = syncChild(currentNode, oldNode, nextSibling);
+ assert(children[atIndex] != null);
+ assert(children[atIndex].parent == this);
+ if (atIndex > 0)
+ children[atIndex-1].updateSlot(children[atIndex].root);
+ }
+
+ // Scan backwards from end of list while nodes can be directly synced
+ // without reordering.
+ while (endIndex > startIndex && oldEndIndex > oldStartIndex) {
+ currentNode = children[endIndex - 1];
+ oldNode = oldChildren[oldEndIndex - 1];
+
+ if (currentNode.runtimeType != oldNode.runtimeType || currentNode.key != oldNode.key) {
+ break;
+ }
+
+ endIndex--;
+ oldEndIndex--;
+ sync(endIndex);
+ nextSibling = children[endIndex].root;
+ }
+
+ HashMap<String, Widget> oldNodeIdMap = null;
+
+ bool oldNodeReordered(String key) {
+ return oldNodeIdMap != null &&
+ oldNodeIdMap.containsKey(key) &&
+ oldNodeIdMap[key] == null;
+ }
+
+ void advanceOldStartIndex() {
+ oldStartIndex++;
+ while (oldStartIndex < oldEndIndex &&
+ oldNodeReordered(oldChildren[oldStartIndex].key)) {
+ oldStartIndex++;
+ }
+ }
+
+ void ensureOldIdMap() {
+ if (oldNodeIdMap != null)
+ return;
+
+ oldNodeIdMap = new HashMap<String, Widget>();
+ for (int i = oldStartIndex; i < oldEndIndex; i++) {
+ var node = oldChildren[i];
+ if (node.key != null)
+ oldNodeIdMap.putIfAbsent(node.key, () => node);
+ }
+ }
+
+ bool searchForOldNode() {
+ if (currentNode.key == null)
+ return false; // never re-order these nodes
+
+ ensureOldIdMap();
+ oldNode = oldNodeIdMap[currentNode.key];
+ if (oldNode == null)
+ return false;
+
+ oldNodeIdMap[currentNode.key] = null; // mark it reordered
+ assert(root is ContainerRenderObjectMixin);
+ assert(old.root is ContainerRenderObjectMixin);
+ assert(oldNode.root != null);
+
+ if (old.root == root) {
+ root.move(oldNode.root, before: nextSibling);
+ } else {
+ (old.root as ContainerRenderObjectMixin).remove(oldNode.root); // TODO(ianh): Remove cast once the analyzer is cleverer
+ root.add(oldNode.root, before: nextSibling);
+ }
+
+ return true;
+ }
+
+ // Scan forwards, this time we may re-order;
+ nextSibling = root.firstChild;
+ while (startIndex < endIndex && oldStartIndex < oldEndIndex) {
+ currentNode = children[startIndex];
+ oldNode = oldChildren[oldStartIndex];
+
+ if (currentNode.runtimeType == oldNode.runtimeType && currentNode.key == oldNode.key) {
+ nextSibling = root.childAfter(nextSibling);
+ sync(startIndex);
+ startIndex++;
+ advanceOldStartIndex();
+ continue;
+ }
+
+ oldNode = null;
+ searchForOldNode();
+ sync(startIndex);
+ startIndex++;
+ }
+
+ // New insertions
+ oldNode = null;
+ while (startIndex < endIndex) {
+ currentNode = children[startIndex];
+ sync(startIndex);
+ startIndex++;
+ }
+
+ // Removals
+ currentNode = null;
+ while (oldStartIndex < oldEndIndex) {
+ oldNode = oldChildren[oldStartIndex];
+ syncChild(null, oldNode, null);
+ assert(oldNode.parent == null);
+ advanceOldStartIndex();
+ }
+
+ assert(root == this.root); // TODO(ianh): Remove this once the analyzer is cleverer
+ }
+
+}
+
+class WidgetSkyBinding extends SkyBinding {
+
+ WidgetSkyBinding({ RenderView renderViewOverride: null })
+ : super(renderViewOverride: renderViewOverride);
+
+ static void initWidgetSkyBinding({ RenderView renderViewOverride: null }) {
+ if (SkyBinding.instance == null)
+ new WidgetSkyBinding(renderViewOverride: renderViewOverride);
+ assert(SkyBinding.instance is WidgetSkyBinding);
+ }
+
+ void dispatchEvent(sky.Event event, HitTestResult result) {
+ assert(SkyBinding.instance == this);
+ super.dispatchEvent(event, result);
+ for (HitTestEntry entry in result.path.reversed) {
+ Widget target = RenderObjectWrapper._getMounted(entry.target);
+ if (target == null)
+ continue;
+ RenderObject targetRoot = target.root;
+ while (target != null && target.root == targetRoot) {
+ if (target is Listener)
+ target._handleEvent(event);
+ target = target._parent;
+ }
+ }
+ }
+
+}
+
+abstract class App extends StatefulComponent {
+
+ App({ String key }) : super(key: key);
+
+ void _handleEvent(sky.Event event) {
+ if (event.type == 'back')
+ onBack();
+ }
+
+ void didMount() {
+ super.didMount();
+ SkyBinding.instance.addEventListener(_handleEvent);
+ }
+
+ void didUnmount() {
+ super.didUnmount();
+ SkyBinding.instance.removeEventListener(_handleEvent);
+ }
+
+ void syncFields(Component source) { }
+
+ // Override this to handle back button behavior in your app
+ // Call super.onBack() to finish the activity
+ void onBack() {
+ activity.finishCurrentActivity();
+ }
+}
+
+abstract class AbstractWidgetRoot extends StatefulComponent {
+
+ AbstractWidgetRoot() {
+ _mounted = true;
+ _scheduleComponentForRender(this);
+ }
+
+ void syncFields(AbstractWidgetRoot source) {
+ assert(false);
+ // if we get here, it implies that we have a parent
+ }
+
+ void _buildIfDirty() {
+ assert(_dirty);
+ assert(_mounted);
+ assert(parent == null);
+ _sync(null, null);
+ }
+
+}
+
+class RenderViewWrapper extends OneChildRenderObjectWrapper {
+ RenderViewWrapper({ String key, Widget child }) : super(key: key, child: child);
+ RenderView get root => super.root;
+ RenderView createNode() => SkyBinding.instance.renderView;
+}
+
+class AppContainer extends AbstractWidgetRoot {
+ AppContainer(this.app) {
+ assert(SkyBinding.instance is WidgetSkyBinding);
+ }
+ final App app;
+ Widget build() => new RenderViewWrapper(child: app);
+}
+
+AppContainer _container;
+void runApp(App app, { RenderView renderViewOverride, bool enableProfilingLoop: false }) {
+ WidgetSkyBinding.initWidgetSkyBinding(renderViewOverride: renderViewOverride);
+ _container = new AppContainer(app);
+ if (enableProfilingLoop) {
+ new Timer.periodic(const Duration(milliseconds: 20), (_) {
+ app.scheduleBuild();
+ });
+ }
+}
+void debugDumpApp() {
+ if (_container != null)
+ _container.toString().split('\n').forEach(print);
+ else
+ print("runApp() not yet called");
+}
+
+
+class RenderBoxToWidgetAdapter extends AbstractWidgetRoot {
+
+ RenderBoxToWidgetAdapter(
+ RenderObjectWithChildMixin<RenderBox> container,
+ this.builder
+ ) : _container = container, super() {
+ assert(builder != null);
+ }
+
+ RenderObjectWithChildMixin<RenderBox> _container;
+ RenderObjectWithChildMixin<RenderBox> get container => _container;
+ void set container(RenderObjectWithChildMixin<RenderBox> value) {
+ if (_container != value) {
+ assert(value.child == null);
+ if (root != null) {
+ assert(_container.child == root);
+ _container.child = null;
+ }
+ _container = value;
+ if (root != null) {
+ _container.child = root;
+ assert(_container.child == root);
+ }
+ }
+ }
+
+ final Builder builder;
+
+ void _buildIfDirty() {
+ super._buildIfDirty();
+ if (root.parent == null) {
+ // we haven't attached it yet
+ assert(_container.child == null);
+ _container.child = root;
+ }
+ assert(root.parent == _container);
+ }
+
+ Widget build() => builder();
+}
diff --git a/packages/flutter/pubspec.yaml b/packages/flutter/pubspec.yaml
new file mode 100644
index 0000000..e0e8189
--- /dev/null
+++ b/packages/flutter/pubspec.yaml
@@ -0,0 +1,14 @@
+author: Chromium Authors <sky-dev@googlegroups.com>
+dependencies:
+ cassowary: ^0.1.7
+ mojo: ^0.0.17
+ mojo_services: ^0.0.15
+ mojom: ^0.0.17
+ newton: ^0.1.0
+ vector_math: ^1.4.3
+description: Dart files to support executing inside Sky.
+environment:
+ sdk: '>=1.8.0 <2.0.0'
+homepage: https://github.com/domokit/mojo/tree/master/sky
+name: sky
+version: 0.0.18
