blob: 59843b0ad71737a21d5558b083b35cd5183961c6 [file] [log] [blame]
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
// for details. 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:convert' show jsonEncode, jsonDecode;
import 'dart:html';
import 'usage_impl.dart';
/// An interface to a Google Analytics session, suitable for use in web apps.
/// [analyticsUrl] is an optional replacement for the default Google Analytics
/// URL (``).
/// [batchingDelay] is used to control batching behaviour. Events will be sent
/// batches of 20 after the duration is over from when the first message was
/// sent.
/// If [batchingDelay] is `Duration()` messages will be sent when control
/// returns to the event loop.
/// Batched messages are sent in batches of up to 20 messages.
class AnalyticsHtml extends AnalyticsImpl {
String trackingId,
String applicationName,
String applicationVersion, {
String? analyticsUrl,
Duration? batchingDelay,
}) : super(
applicationName: applicationName,
applicationVersion: applicationVersion,
analyticsUrl: analyticsUrl,
batchingDelay: batchingDelay,
) {
var screenWidth = window.screen!.width;
var screenHeight = window.screen!.height;
setSessionValue('sr', '${screenWidth}x$screenHeight');
setSessionValue('sd', '${window.screen!.pixelDepth}-bits');
setSessionValue('ul', window.navigator.language);
typedef HttpRequestor = Future<HttpRequest> Function(String url,
{String? method, dynamic sendData});
class HtmlPostHandler extends PostHandler {
final HttpRequestor? mockRequestor;
String encodeHit(Map<String, String> hit) {
var viewportWidth = document.documentElement!.clientWidth;
var viewportHeight = document.documentElement!.clientHeight;
return postEncode({...hit, 'vp': '${viewportWidth}x$viewportHeight'});
Future<void> sendPost(String url, List<String> batch) async {
var data = batch.join('\n');
Future<HttpRequest> Function(String, {String method, dynamic sendData})
requestor = mockRequestor ?? HttpRequest.request;
try {
await requestor(url, method: 'POST', sendData: data);
} on Exception {
// Catch errors that can happen during a request, but that we can't do
// anything about, e.g. a missing internet connection.
void close() {}
class HtmlPersistentProperties extends PersistentProperties {
late final Map _map;
HtmlPersistentProperties(String name) : super(name) {
var str = window.localStorage[name];
if (str == null || str.isEmpty) str = '{}';
_map = jsonDecode(str);
dynamic operator [](String key) => _map[key];
void operator []=(String key, dynamic value) {
if (value == null) {
} else {
_map[key] = value;
window.localStorage[name] = jsonEncode(_map);
void syncSettings() {}