| // Copyright 2014 The Flutter 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:flutter/gestures.dart'; |
| import 'package:flutter/material.dart'; |
| import 'package:flutter/rendering.dart'; |
| import 'package:flutter_test/flutter_test.dart'; |
| |
| import '../rendering/mock_canvas.dart'; |
| import '../widgets/semantics_tester.dart'; |
| |
| void main() { |
| testWidgets('FlatButton defaults', (WidgetTester tester) async { |
| final Finder rawButtonMaterial = find.descendant( |
| of: find.byType(FlatButton), |
| matching: find.byType(Material), |
| ); |
| |
| // Enabled FlatButton |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: FlatButton( |
| onPressed: () { }, |
| child: const Text('button'), |
| ), |
| ), |
| ); |
| Material material = tester.widget<Material>(rawButtonMaterial); |
| expect(material.animationDuration, const Duration(milliseconds: 200)); |
| expect(material.borderOnForeground, true); |
| expect(material.borderRadius, null); |
| expect(material.clipBehavior, Clip.none); |
| expect(material.color, null); |
| expect(material.elevation, 0.0); |
| expect(material.shadowColor, null); |
| expect(material.shape, const RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(2.0)))); |
| expect(material.textStyle!.color, const Color(0xdd000000)); |
| expect(material.textStyle!.fontFamily, 'Roboto'); |
| expect(material.textStyle!.fontSize, 14); |
| expect(material.textStyle!.fontWeight, FontWeight.w500); |
| expect(material.type, MaterialType.transparency); |
| |
| final Offset center = tester.getCenter(find.byType(FlatButton)); |
| await tester.startGesture(center); |
| await tester.pumpAndSettle(); |
| |
| material = tester.widget<Material>(rawButtonMaterial); |
| // No change vs enabled and not pressed. |
| expect(material.animationDuration, const Duration(milliseconds: 200)); |
| expect(material.borderOnForeground, true); |
| expect(material.borderRadius, null); |
| expect(material.clipBehavior, Clip.none); |
| expect(material.color, null); |
| expect(material.elevation, 0.0); |
| expect(material.shadowColor, null); |
| expect(material.shape, const RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(2.0)))); |
| expect(material.textStyle!.color, const Color(0xdd000000)); |
| expect(material.textStyle!.fontFamily, 'Roboto'); |
| expect(material.textStyle!.fontSize, 14); |
| expect(material.textStyle!.fontWeight, FontWeight.w500); |
| expect(material.type, MaterialType.transparency); |
| |
| // Disabled FlatButton |
| await tester.pumpWidget( |
| const Directionality( |
| textDirection: TextDirection.ltr, |
| child: FlatButton( |
| onPressed: null, |
| child: Text('button'), |
| ), |
| ), |
| ); |
| material = tester.widget<Material>(rawButtonMaterial); |
| expect(material.animationDuration, const Duration(milliseconds: 200)); |
| expect(material.borderOnForeground, true); |
| expect(material.borderRadius, null); |
| expect(material.clipBehavior, Clip.none); |
| expect(material.color, null); |
| expect(material.elevation, 0.0); |
| expect(material.shadowColor, null); |
| expect(material.shape, const RoundedRectangleBorder(borderRadius: BorderRadius.all(Radius.circular(2.0)))); |
| expect(material.textStyle!.color, const Color(0x61000000)); |
| expect(material.textStyle!.fontFamily, 'Roboto'); |
| expect(material.textStyle!.fontSize, 14); |
| expect(material.textStyle!.fontWeight, FontWeight.w500); |
| expect(material.type, MaterialType.transparency); |
| }); |
| |
| testWidgets('FlatButton implements debugFillProperties', (WidgetTester tester) async { |
| final DiagnosticPropertiesBuilder builder = DiagnosticPropertiesBuilder(); |
| FlatButton( |
| onPressed: () { }, |
| textColor: const Color(0xFF00FF00), |
| disabledTextColor: const Color(0xFFFF0000), |
| color: const Color(0xFF000000), |
| highlightColor: const Color(0xFF1565C0), |
| splashColor: const Color(0xFF9E9E9E), |
| child: const Text('Hello'), |
| ).debugFillProperties(builder); |
| final List<String> description = builder.properties |
| .where((DiagnosticsNode n) => !n.isFiltered(DiagnosticLevel.info)) |
| .map((DiagnosticsNode n) => n.toString()).toList(); |
| expect(description, <String>[ |
| 'textColor: Color(0xff00ff00)', |
| 'disabledTextColor: Color(0xffff0000)', |
| 'color: Color(0xff000000)', |
| 'highlightColor: Color(0xff1565c0)', |
| 'splashColor: Color(0xff9e9e9e)', |
| ]); |
| }); |
| |
| testWidgets('Default FlatButton meets a11y contrast guidelines', (WidgetTester tester) async { |
| final FocusNode focusNode = FocusNode(); |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Scaffold( |
| body: Center( |
| child: FlatButton( |
| onPressed: () { }, |
| focusNode: focusNode, |
| child: const Text('FlatButton'), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| // Default, not disabled. |
| await expectLater(tester, meetsGuideline(textContrastGuideline)); |
| |
| // Focused. |
| focusNode.requestFocus(); |
| await tester.pumpAndSettle(); |
| await expectLater(tester, meetsGuideline(textContrastGuideline)); |
| |
| // Hovered. |
| final Offset center = tester.getCenter(find.byType(FlatButton)); |
| final TestGesture gesture = await tester.createGesture( |
| kind: PointerDeviceKind.mouse, |
| ); |
| await gesture.addPointer(); |
| addTearDown(gesture.removePointer); |
| await gesture.moveTo(center); |
| await tester.pumpAndSettle(); |
| await expectLater(tester, meetsGuideline(textContrastGuideline)); |
| |
| // Highlighted (pressed). |
| await gesture.down(center); |
| await tester.pump(); // Start the splash and highlight animations. |
| await tester.pump(const Duration(milliseconds: 800)); // Wait for splash and highlight to be well under way. |
| await expectLater(tester, meetsGuideline(textContrastGuideline)); |
| }, |
| skip: isBrowser, // https://github.com/flutter/flutter/issues/44115 |
| ); |
| |
| testWidgets('FlatButton with colored theme meets a11y contrast guidelines', (WidgetTester tester) async { |
| final FocusNode focusNode = FocusNode(); |
| |
| final ColorScheme colorScheme = ColorScheme.fromSwatch(); |
| |
| Color getTextColor(Set<MaterialState> states) { |
| final Set<MaterialState> interactiveStates = <MaterialState>{ |
| MaterialState.pressed, |
| MaterialState.hovered, |
| MaterialState.focused, |
| }; |
| if (states.any(interactiveStates.contains)) { |
| return Colors.blue[900]!; |
| } |
| return Colors.blue[800]!; |
| } |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Scaffold( |
| body: Center( |
| child: ButtonTheme( |
| colorScheme: colorScheme, |
| textTheme: ButtonTextTheme.primary, |
| child: FlatButton( |
| onPressed: () {}, |
| focusNode: focusNode, |
| textColor: MaterialStateColor.resolveWith(getTextColor), |
| child: const Text('FlatButton'), |
| ), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| // Default, not disabled. |
| await expectLater(tester, meetsGuideline(textContrastGuideline)); |
| |
| // Focused. |
| focusNode.requestFocus(); |
| await tester.pumpAndSettle(); |
| await expectLater(tester, meetsGuideline(textContrastGuideline)); |
| |
| // Hovered. |
| final Offset center = tester.getCenter(find.byType(FlatButton)); |
| final TestGesture gesture = await tester.createGesture( |
| kind: PointerDeviceKind.mouse, |
| ); |
| await gesture.addPointer(); |
| addTearDown(gesture.removePointer); |
| await gesture.moveTo(center); |
| await tester.pumpAndSettle(); |
| await expectLater(tester, meetsGuideline(textContrastGuideline)); |
| |
| // Highlighted (pressed). |
| await gesture.down(center); |
| await tester.pump(); // Start the splash and highlight animations. |
| await tester.pump(const Duration(milliseconds: 800)); // Wait for splash and highlight to be well under way. |
| await expectLater(tester, meetsGuideline(textContrastGuideline)); |
| }, |
| skip: isBrowser, // https://github.com/flutter/flutter/issues/44115 |
| ); |
| |
| testWidgets('FlatButton uses stateful color for text color in different states', (WidgetTester tester) async { |
| final FocusNode focusNode = FocusNode(); |
| |
| const Color pressedColor = Color(0x00000001); |
| const Color hoverColor = Color(0x00000002); |
| const Color focusedColor = Color(0x00000003); |
| const Color defaultColor = Color(0x00000004); |
| |
| Color getTextColor(Set<MaterialState> states) { |
| if (states.contains(MaterialState.pressed)) { |
| return pressedColor; |
| } |
| if (states.contains(MaterialState.hovered)) { |
| return hoverColor; |
| } |
| if (states.contains(MaterialState.focused)) { |
| return focusedColor; |
| } |
| return defaultColor; |
| } |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Scaffold( |
| body: Center( |
| child: FlatButton( |
| onPressed: () {}, |
| focusNode: focusNode, |
| textColor: MaterialStateColor.resolveWith(getTextColor), |
| child: const Text('FlatButton'), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| Color? textColor() { |
| return tester.renderObject<RenderParagraph>(find.text('FlatButton')).text.style?.color; |
| } |
| |
| // Default, not disabled. |
| expect(textColor(), equals(defaultColor)); |
| |
| // Focused. |
| focusNode.requestFocus(); |
| await tester.pumpAndSettle(); |
| expect(textColor(), focusedColor); |
| |
| // Hovered. |
| final Offset center = tester.getCenter(find.byType(FlatButton)); |
| final TestGesture gesture = await tester.createGesture( |
| kind: PointerDeviceKind.mouse, |
| ); |
| await gesture.addPointer(); |
| addTearDown(gesture.removePointer); |
| await gesture.moveTo(center); |
| await tester.pumpAndSettle(); |
| expect(textColor(), hoverColor); |
| |
| // Highlighted (pressed). |
| await gesture.down(center); |
| await tester.pump(); // Start the splash and highlight animations. |
| await tester.pump(const Duration(milliseconds: 800)); // Wait for splash and highlight to be well under way. |
| expect(textColor(), pressedColor); |
| }); |
| |
| testWidgets('FlatButton uses stateful color for icon color in different states', (WidgetTester tester) async { |
| final FocusNode focusNode = FocusNode(); |
| final Key buttonKey = UniqueKey(); |
| |
| const Color pressedColor = Color(0x00000001); |
| const Color hoverColor = Color(0x00000002); |
| const Color focusedColor = Color(0x00000003); |
| const Color defaultColor = Color(0x00000004); |
| |
| Color getTextColor(Set<MaterialState> states) { |
| if (states.contains(MaterialState.pressed)) { |
| return pressedColor; |
| } |
| if (states.contains(MaterialState.hovered)) { |
| return hoverColor; |
| } |
| if (states.contains(MaterialState.focused)) { |
| return focusedColor; |
| } |
| return defaultColor; |
| } |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Scaffold( |
| body: Center( |
| child: FlatButton.icon( |
| key: buttonKey, |
| icon: const Icon(Icons.add), |
| label: const Text('FlatButton'), |
| onPressed: () {}, |
| focusNode: focusNode, |
| textColor: MaterialStateColor.resolveWith(getTextColor), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| Color? iconColor() => _iconStyle(tester, Icons.add)?.color; |
| // Default, not disabled. |
| expect(iconColor(), equals(defaultColor)); |
| |
| // Focused. |
| focusNode.requestFocus(); |
| await tester.pumpAndSettle(); |
| expect(iconColor(), focusedColor); |
| |
| // Hovered. |
| final Offset center = tester.getCenter(find.byKey(buttonKey)); |
| final TestGesture gesture = await tester.createGesture( |
| kind: PointerDeviceKind.mouse, |
| ); |
| await gesture.addPointer(); |
| addTearDown(gesture.removePointer); |
| await gesture.moveTo(center); |
| await tester.pumpAndSettle(); |
| expect(iconColor(), hoverColor); |
| |
| // Highlighted (pressed). |
| await gesture.down(center); |
| await tester.pump(); // Start the splash and highlight animations. |
| await tester.pump(const Duration(milliseconds: 800)); // Wait for splash and highlight to be well under way. |
| expect(iconColor(), pressedColor); |
| }); |
| |
| testWidgets('FlatButton ignores disabled text color if text color is stateful', (WidgetTester tester) async { |
| final FocusNode focusNode = FocusNode(); |
| |
| const Color disabledColor = Color(0x00000001); |
| const Color defaultColor = Color(0x00000002); |
| const Color unusedDisabledTextColor = Color(0x00000003); |
| |
| Color getTextColor(Set<MaterialState> states) { |
| if (states.contains(MaterialState.disabled)) { |
| return disabledColor; |
| } |
| return defaultColor; |
| } |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| home: Scaffold( |
| body: Center( |
| child: FlatButton( |
| onPressed: null, |
| focusNode: focusNode, |
| textColor: MaterialStateColor.resolveWith(getTextColor), |
| disabledTextColor: unusedDisabledTextColor, |
| child: const Text('FlatButton'), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| Color? textColor() { |
| return tester.renderObject<RenderParagraph>(find.text('FlatButton')).text.style?.color; |
| } |
| |
| // Disabled. |
| expect(textColor(), equals(disabledColor)); |
| expect(textColor(), isNot(unusedDisabledTextColor)); |
| }); |
| |
| testWidgets('FlatButton has no clip by default', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: Material( |
| child: FlatButton( |
| child: Container(), |
| onPressed: () { /* to make sure the button is enabled */ }, |
| ), |
| ), |
| ), |
| ); |
| |
| expect( |
| tester.renderObject(find.byType(FlatButton)), |
| paintsExactlyCountTimes(#clipPath, 0), |
| ); |
| }); |
| |
| testWidgets('Does FlatButton work with hover', (WidgetTester tester) async { |
| const Color hoverColor = Color(0xff001122); |
| |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: FlatButton( |
| hoverColor: hoverColor, |
| onPressed: () { }, |
| child: const Text('button'), |
| ), |
| ), |
| ); |
| |
| final TestGesture gesture = await tester.createGesture(kind: PointerDeviceKind.mouse); |
| await gesture.addPointer(); |
| await gesture.moveTo(tester.getCenter(find.byType(FlatButton))); |
| await tester.pumpAndSettle(); |
| |
| final RenderObject inkFeatures = tester.allRenderObjects.firstWhere((RenderObject object) => object.runtimeType.toString() == '_RenderInkFeatures'); |
| expect(inkFeatures, paints..rect(color: hoverColor)); |
| |
| await gesture.removePointer(); |
| }); |
| |
| testWidgets('FlatButton changes mouse cursor when hovered', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: MouseRegion( |
| cursor: SystemMouseCursors.forbidden, |
| child: FlatButton.icon( |
| icon: const Icon(Icons.add), |
| label: const Text('Hello'), |
| onPressed: () {}, |
| mouseCursor: SystemMouseCursors.text, |
| ), |
| ), |
| ), |
| ); |
| |
| final TestGesture gesture = await tester.createGesture(kind: PointerDeviceKind.mouse, pointer: 1); |
| await gesture.addPointer(location: const Offset(1, 1)); |
| addTearDown(gesture.removePointer); |
| |
| await tester.pump(); |
| expect(RendererBinding.instance?.mouseTracker.debugDeviceActiveCursor(1), SystemMouseCursors.text); |
| |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: MouseRegion( |
| cursor: SystemMouseCursors.forbidden, |
| child: FlatButton( |
| onPressed: () {}, |
| mouseCursor: SystemMouseCursors.text, |
| child: const Text('Hello'), |
| ), |
| ), |
| ), |
| ); |
| |
| expect(RendererBinding.instance?.mouseTracker.debugDeviceActiveCursor(1), SystemMouseCursors.text); |
| |
| // Test default cursor |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: MouseRegion( |
| cursor: SystemMouseCursors.forbidden, |
| child: FlatButton( |
| onPressed: () {}, |
| child: const Text('Hello'), |
| ), |
| ), |
| ), |
| ); |
| |
| expect(RendererBinding.instance?.mouseTracker.debugDeviceActiveCursor(1), SystemMouseCursors.click); |
| |
| // Test default cursor when disabled |
| await tester.pumpWidget( |
| const Directionality( |
| textDirection: TextDirection.ltr, |
| child: MouseRegion( |
| cursor: SystemMouseCursors.forbidden, |
| child: FlatButton( |
| onPressed: null, |
| child: Text('Hello'), |
| ), |
| ), |
| ), |
| ); |
| |
| expect(RendererBinding.instance?.mouseTracker.debugDeviceActiveCursor(1), SystemMouseCursors.basic); |
| }); |
| |
| testWidgets('Does FlatButton work with focus', (WidgetTester tester) async { |
| const Color focusColor = Color(0xff001122); |
| |
| final FocusNode focusNode = FocusNode(debugLabel: 'FlatButton Node'); |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: FlatButton( |
| focusColor: focusColor, |
| focusNode: focusNode, |
| onPressed: () { }, |
| child: const Text('button'), |
| ), |
| ), |
| ); |
| |
| WidgetsBinding.instance?.focusManager.highlightStrategy = FocusHighlightStrategy.alwaysTraditional; |
| focusNode.requestFocus(); |
| await tester.pumpAndSettle(); |
| |
| final RenderObject inkFeatures = tester.allRenderObjects.firstWhere((RenderObject object) => object.runtimeType.toString() == '_RenderInkFeatures'); |
| expect(inkFeatures, paints..rect(color: focusColor)); |
| }); |
| |
| testWidgets('Does FlatButton contribute semantics', (WidgetTester tester) async { |
| final SemanticsTester semantics = SemanticsTester(tester); |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: Material( |
| child: Center( |
| child: FlatButton( |
| onPressed: () { }, |
| child: const Text('ABC'), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| expect(semantics, hasSemantics( |
| TestSemantics.root( |
| children: <TestSemantics>[ |
| TestSemantics.rootChild( |
| actions: <SemanticsAction>[ |
| SemanticsAction.tap, |
| ], |
| label: 'ABC', |
| rect: const Rect.fromLTRB(0.0, 0.0, 88.0, 48.0), |
| transform: Matrix4.translationValues(356.0, 276.0, 0.0), |
| flags: <SemanticsFlag>[ |
| SemanticsFlag.hasEnabledState, |
| SemanticsFlag.isButton, |
| SemanticsFlag.isEnabled, |
| SemanticsFlag.isFocusable, |
| ], |
| ), |
| ], |
| ), |
| ignoreId: true, |
| )); |
| |
| semantics.dispose(); |
| }); |
| |
| testWidgets('Does FlatButton scale with font scale changes', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: Material( |
| child: MediaQuery( |
| data: const MediaQueryData(), |
| child: Center( |
| child: FlatButton( |
| onPressed: () { }, |
| child: const Text('ABC'), |
| ), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| expect(tester.getSize(find.byType(FlatButton)), equals(const Size(88.0, 48.0))); |
| expect(tester.getSize(find.byType(Text)), equals(const Size(42.0, 14.0))); |
| |
| // textScaleFactor expands text, but not button. |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: Material( |
| child: MediaQuery( |
| data: const MediaQueryData(textScaleFactor: 1.3), |
| child: Center( |
| child: FlatButton( |
| onPressed: () { }, |
| child: const Text('ABC'), |
| ), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| expect(tester.getSize(find.byType(FlatButton)), equals(const Size(88.0, 48.0))); |
| // Scaled text rendering is different on Linux and Mac by one pixel. |
| // TODO(gspencergoog): Figure out why this is, and fix it. https://github.com/flutter/flutter/issues/12357 |
| expect(tester.getSize(find.byType(Text)).width, isIn(<double>[54.0, 55.0])); |
| expect(tester.getSize(find.byType(Text)).height, isIn(<double>[18.0, 19.0])); |
| |
| // Set text scale large enough to expand text and button. |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: Material( |
| child: MediaQuery( |
| data: const MediaQueryData(textScaleFactor: 3.0), |
| child: Center( |
| child: FlatButton( |
| onPressed: () { }, |
| child: const Text('ABC'), |
| ), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| // Scaled text rendering is different on Linux and Mac by one pixel. |
| // TODO(gspencergoog): Figure out why this is, and fix it. https://github.com/flutter/flutter/issues/12357 |
| expect(tester.getSize(find.byType(FlatButton)).width, isIn(<double>[158.0, 159.0])); |
| expect(tester.getSize(find.byType(FlatButton)).height, equals(48.0)); |
| expect(tester.getSize(find.byType(Text)).width, isIn(<double>[126.0, 127.0])); |
| expect(tester.getSize(find.byType(Text)).height, equals(42.0)); |
| }); |
| |
| testWidgets('FlatButton size is configurable by ThemeData.materialTapTargetSize', (WidgetTester tester) async { |
| final Key key1 = UniqueKey(); |
| await tester.pumpWidget( |
| Theme( |
| data: ThemeData(materialTapTargetSize: MaterialTapTargetSize.padded), |
| child: Directionality( |
| textDirection: TextDirection.ltr, |
| child: Material( |
| child: Center( |
| child: FlatButton( |
| key: key1, |
| child: const SizedBox(width: 50.0, height: 8.0), |
| onPressed: () { }, |
| ), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| expect(tester.getSize(find.byKey(key1)), const Size(88.0, 48.0)); |
| |
| final Key key2 = UniqueKey(); |
| await tester.pumpWidget( |
| Theme( |
| data: ThemeData(materialTapTargetSize: MaterialTapTargetSize.shrinkWrap), |
| child: Directionality( |
| textDirection: TextDirection.ltr, |
| child: Material( |
| child: Center( |
| child: FlatButton( |
| key: key2, |
| child: const SizedBox(width: 50.0, height: 8.0), |
| onPressed: () { }, |
| ), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| expect(tester.getSize(find.byKey(key2)), const Size(88.0, 36.0)); |
| }); |
| |
| testWidgets('FlatButton onPressed and onLongPress callbacks are correctly called when non-null', (WidgetTester tester) async { |
| bool wasPressed; |
| Finder flatButton; |
| |
| Widget buildFrame({ VoidCallback? onPressed, VoidCallback? onLongPress }) { |
| return Directionality( |
| textDirection: TextDirection.ltr, |
| child: FlatButton( |
| onPressed: onPressed, |
| onLongPress: onLongPress, |
| child: const Text('button'), |
| ), |
| ); |
| } |
| |
| // onPressed not null, onLongPress null. |
| wasPressed = false; |
| await tester.pumpWidget( |
| buildFrame(onPressed: () { wasPressed = true; }), |
| ); |
| flatButton = find.byType(FlatButton); |
| expect(tester.widget<FlatButton>(flatButton).enabled, true); |
| await tester.tap(flatButton); |
| expect(wasPressed, true); |
| |
| // onPressed null, onLongPress not null. |
| wasPressed = false; |
| await tester.pumpWidget( |
| buildFrame(onLongPress: () { wasPressed = true; }), |
| ); |
| flatButton = find.byType(FlatButton); |
| expect(tester.widget<FlatButton>(flatButton).enabled, true); |
| await tester.longPress(flatButton); |
| expect(wasPressed, true); |
| |
| // onPressed null, onLongPress null. |
| await tester.pumpWidget( |
| buildFrame(), |
| ); |
| flatButton = find.byType(FlatButton); |
| expect(tester.widget<FlatButton>(flatButton).enabled, false); |
| }); |
| |
| testWidgets('FlatButton onPressed and onLongPress callbacks are distinctly recognized', (WidgetTester tester) async { |
| bool didPressButton = false; |
| bool didLongPressButton = false; |
| |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: FlatButton( |
| onPressed: () { |
| didPressButton = true; |
| }, |
| onLongPress: () { |
| didLongPressButton = true; |
| }, |
| child: const Text('button'), |
| ), |
| ), |
| ); |
| |
| final Finder flatButton = find.byType(FlatButton); |
| expect(tester.widget<FlatButton>(flatButton).enabled, true); |
| |
| expect(didPressButton, isFalse); |
| await tester.tap(flatButton); |
| expect(didPressButton, isTrue); |
| |
| expect(didLongPressButton, isFalse); |
| await tester.longPress(flatButton); |
| expect(didLongPressButton, isTrue); |
| }); |
| |
| testWidgets('FlatButton responds to density changes.', (WidgetTester tester) async { |
| const Key key = Key('test'); |
| const Key childKey = Key('test child'); |
| |
| Future<void> buildTest(VisualDensity visualDensity, {bool useText = false}) async { |
| return tester.pumpWidget( |
| MaterialApp( |
| home: Directionality( |
| textDirection: TextDirection.rtl, |
| child: Center( |
| child: FlatButton( |
| visualDensity: visualDensity, |
| key: key, |
| onPressed: () {}, |
| child: useText ? const Text('Text', key: childKey) : Container(key: childKey, width: 100, height: 100, color: const Color(0xffff0000)), |
| ), |
| ), |
| ), |
| ), |
| ); |
| } |
| |
| await buildTest(VisualDensity.standard); |
| final RenderBox box = tester.renderObject(find.byKey(key)); |
| Rect childRect = tester.getRect(find.byKey(childKey)); |
| await tester.pumpAndSettle(); |
| expect(box.size, equals(const Size(132, 100))); |
| expect(childRect, equals(const Rect.fromLTRB(350, 250, 450, 350))); |
| |
| await buildTest(const VisualDensity(horizontal: 3.0, vertical: 3.0)); |
| await tester.pumpAndSettle(); |
| childRect = tester.getRect(find.byKey(childKey)); |
| expect(box.size, equals(const Size(156, 124))); |
| expect(childRect, equals(const Rect.fromLTRB(350, 250, 450, 350))); |
| |
| await buildTest(const VisualDensity(horizontal: -3.0, vertical: -3.0)); |
| await tester.pumpAndSettle(); |
| childRect = tester.getRect(find.byKey(childKey)); |
| expect(box.size, equals(const Size(108, 100))); |
| expect(childRect, equals(const Rect.fromLTRB(350, 250, 450, 350))); |
| |
| await buildTest(VisualDensity.standard, useText: true); |
| await tester.pumpAndSettle(); |
| childRect = tester.getRect(find.byKey(childKey)); |
| expect(box.size, equals(const Size(88, 48))); |
| expect(childRect, equals(const Rect.fromLTRB(372.0, 293.0, 428.0, 307.0))); |
| |
| await buildTest(const VisualDensity(horizontal: 3.0, vertical: 3.0), useText: true); |
| await tester.pumpAndSettle(); |
| childRect = tester.getRect(find.byKey(childKey)); |
| expect(box.size, equals(const Size(112, 60))); |
| expect(childRect, equals(const Rect.fromLTRB(372.0, 293.0, 428.0, 307.0))); |
| |
| await buildTest(const VisualDensity(horizontal: -3.0, vertical: -3.0), useText: true); |
| await tester.pumpAndSettle(); |
| childRect = tester.getRect(find.byKey(childKey)); |
| expect(box.size, equals(const Size(76, 36))); |
| expect(childRect, equals(const Rect.fromLTRB(372.0, 293.0, 428.0, 307.0))); |
| }); |
| |
| testWidgets('FlatButton height parameter is used when provided', (WidgetTester tester) async { |
| const double buttonHeight = 100; |
| const double buttonDefaultMinHeight = 36.0; |
| |
| Future<void> buildWidget({double? buttonHeight}) { |
| return tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: FlatButton( |
| height: buttonHeight, |
| child: const Text('button'), |
| onPressed: () { |
| /*ununsed*/ |
| }, |
| ), |
| ), |
| ); |
| } |
| |
| final Finder rawMaterialButtonFinder = find.byType(RawMaterialButton); |
| |
| // If height is not provided we expect the default height to be used. |
| await buildWidget(); |
| expect(tester.widget<RawMaterialButton>(rawMaterialButtonFinder).constraints.minHeight, buttonDefaultMinHeight); |
| |
| // When the height is provided we expect that is used by the internal widget. |
| await buildWidget(buttonHeight: buttonHeight); |
| expect(tester.widget<RawMaterialButton>(rawMaterialButtonFinder).constraints.minHeight, buttonHeight); |
| }); |
| |
| testWidgets('FlatButton minWidth parameter is used when provided', (WidgetTester tester) async { |
| const double buttonMinWidth = 100; |
| const double buttonDefaultMinWidth = 88.0; |
| |
| Future<void> buildWidget({double? buttonMinWidth}) { |
| return tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: FlatButton( |
| minWidth: buttonMinWidth, |
| child: const Text('button'), |
| onPressed: () { |
| /*ununsed*/ |
| }, |
| ), |
| ), |
| ); |
| } |
| |
| final Finder rawMaterialButtonFinder = find.byType(RawMaterialButton); |
| |
| // If minWidth is not provided we expect the default minWidth to be used. |
| await buildWidget(); |
| expect(tester.widget<RawMaterialButton>(rawMaterialButtonFinder).constraints.minWidth, buttonDefaultMinWidth); |
| |
| // When minWidth is provided we expect that the internal widget uses it. |
| await buildWidget(buttonMinWidth: buttonMinWidth); |
| expect(tester.widget<RawMaterialButton>(rawMaterialButtonFinder).constraints.minWidth, buttonMinWidth); |
| }); |
| } |
| |
| TextStyle? _iconStyle(WidgetTester tester, IconData icon) { |
| final RichText iconRichText = tester.widget<RichText>( |
| find.descendant(of: find.byIcon(icon), matching: find.byType(RichText)), |
| ); |
| return iconRichText.text.style; |
| } |
