| // 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_test/flutter_test.dart'; |
| import 'package:flutter/rendering.dart'; |
| |
| import '../rendering/mock_canvas.dart'; |
| import '../widgets/semantics_tester.dart'; |
| |
| void main() { |
| testWidgets('ElevatedButton defaults', (WidgetTester tester) async { |
| const ColorScheme colorScheme = ColorScheme.light(); |
| |
| // Enabled ElevatedButton |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData.from(colorScheme: colorScheme), |
| home: Center( |
| child: ElevatedButton( |
| onPressed: () { }, |
| child: const Text('button'), |
| ), |
| ), |
| ), |
| ); |
| |
| final Finder rawButtonMaterial = find.descendant( |
| of: find.byType(ElevatedButton), |
| matching: find.byType(Material), |
| ); |
| |
| |
| 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, colorScheme.primary); |
| expect(material.elevation, 2); |
| expect(material.shadowColor, const Color(0xff000000)); |
| expect(material.shape, RoundedRectangleBorder(borderRadius: BorderRadius.circular(4))); |
| expect(material.textStyle!.color, colorScheme.onPrimary); |
| expect(material.textStyle!.fontFamily, 'Roboto'); |
| expect(material.textStyle!.fontSize, 14); |
| expect(material.textStyle!.fontWeight, FontWeight.w500); |
| expect(material.type, MaterialType.button); |
| |
| final Offset center = tester.getCenter(find.byType(ElevatedButton)); |
| final TestGesture gesture = await tester.startGesture(center); |
| await tester.pump(); // start the splash animation |
| await tester.pump(const Duration(milliseconds: 100)); // splash is underway |
| final RenderObject inkFeatures = tester.allRenderObjects.firstWhere((RenderObject object) => object.runtimeType.toString() == '_RenderInkFeatures'); |
| expect(inkFeatures, paints..circle(color: colorScheme.onPrimary.withAlpha(0x3d))); // splash color is onPrimary(0.24) |
| |
| // Only elevation changes when enabled and pressed. |
| 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, colorScheme.primary); |
| expect(material.elevation, 8); |
| expect(material.shadowColor, const Color(0xff000000)); |
| expect(material.shape, RoundedRectangleBorder(borderRadius: BorderRadius.circular(4))); |
| expect(material.textStyle!.color, colorScheme.onPrimary); |
| expect(material.textStyle!.fontFamily, 'Roboto'); |
| expect(material.textStyle!.fontSize, 14); |
| expect(material.textStyle!.fontWeight, FontWeight.w500); |
| expect(material.type, MaterialType.button); |
| |
| await gesture.up(); |
| await tester.pumpAndSettle(); |
| |
| // Disabled ElevatedButton |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData.from(colorScheme: colorScheme), |
| home: const Center( |
| child: ElevatedButton( |
| onPressed: null, |
| child: Text('button'), |
| ), |
| ), |
| ), |
| ); |
| |
| // Finish the elevation animation, final background color change. |
| await tester.pumpAndSettle(); |
| |
| 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, colorScheme.onSurface.withOpacity(0.12)); |
| expect(material.elevation, 0.0); |
| expect(material.shadowColor, const Color(0xff000000)); |
| expect(material.shape, RoundedRectangleBorder(borderRadius: BorderRadius.circular(4))); |
| expect(material.textStyle!.color, colorScheme.onSurface.withOpacity(0.38)); |
| expect(material.textStyle!.fontFamily, 'Roboto'); |
| expect(material.textStyle!.fontSize, 14); |
| expect(material.textStyle!.fontWeight, FontWeight.w500); |
| expect(material.type, MaterialType.button); |
| }); |
| |
| testWidgets('Default ElevatedButton meets a11y contrast guidelines', (WidgetTester tester) async { |
| final FocusNode focusNode = FocusNode(); |
| |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData.from(colorScheme: const ColorScheme.light()), |
| home: Scaffold( |
| body: Center( |
| child: ElevatedButton( |
| child: const Text('ElevatedButton'), |
| onPressed: () { }, |
| focusNode: focusNode, |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| // 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(ElevatedButton)); |
| 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)); |
| }, |
| skip: isBrowser, // https://github.com/flutter/flutter/issues/44115 |
| semanticsEnabled: true, |
| ); |
| |
| |
| testWidgets('ElevatedButton 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: ElevatedButtonTheme( |
| data: ElevatedButtonThemeData( |
| style: ButtonStyle( |
| foregroundColor: MaterialStateProperty.resolveWith<Color>(getTextColor), |
| ), |
| ), |
| child: Builder( |
| builder: (BuildContext context) { |
| return ElevatedButton( |
| child: const Text('ElevatedButton'), |
| onPressed: () {}, |
| focusNode: focusNode, |
| ); |
| }, |
| ), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| Color textColor() { |
| return tester.renderObject<RenderParagraph>(find.text('ElevatedButton')).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(ElevatedButton)); |
| 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('ElevatedButton 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: ElevatedButtonTheme( |
| data: ElevatedButtonThemeData( |
| style: ButtonStyle( |
| foregroundColor: MaterialStateProperty.resolveWith<Color>(getTextColor), |
| ), |
| ), |
| child: Builder( |
| builder: (BuildContext context) { |
| return ElevatedButton.icon( |
| key: buttonKey, |
| icon: const Icon(Icons.add), |
| label: const Text('ElevatedButton'), |
| onPressed: () {}, |
| focusNode: focusNode, |
| ); |
| }, |
| ), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| 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('ElevatedButton onPressed and onLongPress callbacks are correctly called when non-null', (WidgetTester tester) async { |
| bool wasPressed; |
| Finder elevatedButton; |
| |
| Widget buildFrame({ VoidCallback? onPressed, VoidCallback? onLongPress }) { |
| return Directionality( |
| textDirection: TextDirection.ltr, |
| child: ElevatedButton( |
| child: const Text('button'), |
| onPressed: onPressed, |
| onLongPress: onLongPress, |
| ), |
| ); |
| } |
| |
| // onPressed not null, onLongPress null. |
| wasPressed = false; |
| await tester.pumpWidget( |
| buildFrame(onPressed: () { wasPressed = true; }, onLongPress: null), |
| ); |
| elevatedButton = find.byType(ElevatedButton); |
| expect(tester.widget<ElevatedButton>(elevatedButton).enabled, true); |
| await tester.tap(elevatedButton); |
| expect(wasPressed, true); |
| |
| // onPressed null, onLongPress not null. |
| wasPressed = false; |
| await tester.pumpWidget( |
| buildFrame(onPressed: null, onLongPress: () { wasPressed = true; }), |
| ); |
| elevatedButton = find.byType(ElevatedButton); |
| expect(tester.widget<ElevatedButton>(elevatedButton).enabled, true); |
| await tester.longPress(elevatedButton); |
| expect(wasPressed, true); |
| |
| // onPressed null, onLongPress null. |
| await tester.pumpWidget( |
| buildFrame(onPressed: null, onLongPress: null), |
| ); |
| elevatedButton = find.byType(ElevatedButton); |
| expect(tester.widget<ElevatedButton>(elevatedButton).enabled, false); |
| }); |
| |
| testWidgets('ElevatedButton onPressed and onLongPress callbacks are distinctly recognized', (WidgetTester tester) async { |
| bool didPressButton = false; |
| bool didLongPressButton = false; |
| |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: ElevatedButton( |
| onPressed: () { |
| didPressButton = true; |
| }, |
| onLongPress: () { |
| didLongPressButton = true; |
| }, |
| child: const Text('button'), |
| ), |
| ), |
| ); |
| |
| final Finder elevatedButton = find.byType(ElevatedButton); |
| expect(tester.widget<ElevatedButton>(elevatedButton).enabled, true); |
| |
| expect(didPressButton, isFalse); |
| await tester.tap(elevatedButton); |
| expect(didPressButton, isTrue); |
| |
| expect(didLongPressButton, isFalse); |
| await tester.longPress(elevatedButton); |
| expect(didLongPressButton, isTrue); |
| }); |
| |
| testWidgets('Does ElevatedButton work with hover', (WidgetTester tester) async { |
| const Color hoverColor = Color(0xff001122); |
| |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: ElevatedButton( |
| style: ButtonStyle( |
| overlayColor: MaterialStateProperty.resolveWith<Color?>((Set<MaterialState> states) { |
| return states.contains(MaterialState.hovered) ? hoverColor : null; |
| }), |
| ), |
| onPressed: () { }, |
| child: const Text('button'), |
| ), |
| ), |
| ); |
| |
| final TestGesture gesture = await tester.createGesture(kind: PointerDeviceKind.mouse); |
| await gesture.addPointer(); |
| await gesture.moveTo(tester.getCenter(find.byType(ElevatedButton))); |
| 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('Does ElevatedButton work with focus', (WidgetTester tester) async { |
| const Color focusColor = Color(0xff001122); |
| |
| final FocusNode focusNode = FocusNode(debugLabel: 'ElevatedButton Node'); |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: ElevatedButton( |
| style: ButtonStyle( |
| overlayColor: MaterialStateProperty.resolveWith<Color?>((Set<MaterialState> states) { |
| return states.contains(MaterialState.focused) ? focusColor : null; |
| }), |
| ), |
| focusNode: focusNode, |
| onPressed: () { }, |
| child: const Text('button'), |
| ), |
| ), |
| ); |
| |
| FocusManager.instance.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 ElevatedButton work with autofocus', (WidgetTester tester) async { |
| const Color focusColor = Color(0xff001122); |
| |
| Color? getOverlayColor(Set<MaterialState> states) { |
| return states.contains(MaterialState.focused) ? focusColor : null; |
| } |
| |
| final FocusNode focusNode = FocusNode(debugLabel: 'ElevatedButton Node'); |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: ElevatedButton( |
| autofocus: true, |
| style: ButtonStyle( |
| overlayColor: MaterialStateProperty.resolveWith<Color?>(getOverlayColor), |
| ), |
| focusNode: focusNode, |
| onPressed: () { }, |
| child: const Text('button'), |
| ), |
| ), |
| ); |
| |
| FocusManager.instance.highlightStrategy = FocusHighlightStrategy.alwaysTraditional; |
| await tester.pumpAndSettle(); |
| |
| final RenderObject inkFeatures = tester.allRenderObjects.firstWhere((RenderObject object) => object.runtimeType.toString() == '_RenderInkFeatures'); |
| expect(inkFeatures, paints..rect(color: focusColor)); |
| }); |
| |
| testWidgets('Does ElevatedButton contribute semantics', (WidgetTester tester) async { |
| final SemanticsTester semantics = SemanticsTester(tester); |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: Material( |
| child: Center( |
| child: ElevatedButton( |
| style: ButtonStyle( |
| // Specifying minimumSize to mimic the original minimumSize for |
| // RaisedButton so that the semantics tree's rect and transform |
| // match the original version of this test. |
| minimumSize: MaterialStateProperty.all<Size>(const Size(88, 36)), |
| ), |
| 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('ElevatedButton size is configurable by ThemeData.materialTapTargetSize', (WidgetTester tester) async { |
| final ButtonStyle style = ButtonStyle( |
| // Specifying minimumSize to mimic the original minimumSize for |
| // RaisedButton so that the corresponding button size matches |
| // the original version of this test. |
| minimumSize: MaterialStateProperty.all<Size>(const Size(88, 36)), |
| ); |
| |
| Widget buildFrame(MaterialTapTargetSize tapTargetSize, Key key) { |
| return Theme( |
| data: ThemeData(materialTapTargetSize: tapTargetSize), |
| child: Directionality( |
| textDirection: TextDirection.ltr, |
| child: Material( |
| child: Center( |
| child: ElevatedButton( |
| key: key, |
| style: style, |
| child: const SizedBox(width: 50.0, height: 8.0), |
| onPressed: () { }, |
| ), |
| ), |
| ), |
| ), |
| ); |
| } |
| |
| final Key key1 = UniqueKey(); |
| await tester.pumpWidget(buildFrame(MaterialTapTargetSize.padded, key1)); |
| expect(tester.getSize(find.byKey(key1)), const Size(88.0, 48.0)); |
| |
| final Key key2 = UniqueKey(); |
| await tester.pumpWidget(buildFrame(MaterialTapTargetSize.shrinkWrap, key2)); |
| expect(tester.getSize(find.byKey(key2)), const Size(88.0, 36.0)); |
| }); |
| |
| testWidgets('ElevatedButton has no clip by default', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: Material( |
| child: ElevatedButton( |
| onPressed: () { /* to make sure the button is enabled */ }, |
| child: const Text('button'), |
| ), |
| ), |
| ), |
| ); |
| |
| expect( |
| tester.renderObject(find.byType(ElevatedButton)), |
| paintsExactlyCountTimes(#clipPath, 0), |
| ); |
| }); |
| |
| testWidgets('ElevatedButton 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 await tester.pumpWidget( |
| MaterialApp( |
| home: Directionality( |
| textDirection: TextDirection.rtl, |
| child: Center( |
| child: ElevatedButton( |
| style: ButtonStyle( |
| visualDensity: visualDensity, |
| // Specifying minimumSize to mimic the original minimumSize for |
| // RaisedButton so that the corresponding button size matches |
| // the original version of this test. |
| minimumSize: MaterialStateProperty.all<Size>(const Size(88, 36)), |
| ), |
| key: key, |
| onPressed: () {}, |
| child: useText |
| ? const Text('Text', key: childKey) |
| : Container(key: childKey, width: 100, height: 100, color: const Color(0xffff0000)), |
| ), |
| ), |
| ), |
| ), |
| ); |
| } |
| |
| await buildTest(const VisualDensity()); |
| 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(const VisualDensity(), 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('ElevatedButton.icon responds to applied padding', (WidgetTester tester) async { |
| const Key buttonKey = Key('test'); |
| const Key labelKey = Key('label'); |
| await tester.pumpWidget( |
| // When textDirection is set to TextDirection.ltr, the label appears on the |
| // right side of the icon. This is important in determining whether the |
| // horizontal padding is applied correctly later on |
| Directionality( |
| textDirection: TextDirection.ltr, |
| child: Material( |
| child: Center( |
| child: ElevatedButton.icon( |
| key: buttonKey, |
| style: ButtonStyle( |
| padding: MaterialStateProperty.all<EdgeInsets>(const EdgeInsets.fromLTRB(16, 5, 10, 12)), |
| ), |
| onPressed: () {}, |
| icon: const Icon(Icons.add), |
| label: const Text( |
| 'Hello', |
| key: labelKey, |
| ), |
| ), |
| ), |
| ), |
| ), |
| ); |
| |
| final Rect paddingRect = tester.getRect(find.byType(Padding)); |
| final Rect labelRect = tester.getRect(find.byKey(labelKey)); |
| final Rect iconRect = tester.getRect(find.byType(Icon)); |
| |
| // The right padding should be applied on the right of the label, whereas the |
| // left padding should be applied on the left side of the icon. |
| expect(paddingRect.right, labelRect.right + 10); |
| expect(paddingRect.left, iconRect.left - 16); |
| // Use the taller widget to check the top and bottom padding. |
| final Rect tallerWidget = iconRect.height > labelRect.height ? iconRect : labelRect; |
| expect(paddingRect.top, tallerWidget.top - 5); |
| expect(paddingRect.bottom, tallerWidget.bottom + 12); |
| }); |
| |
| group('Default ElevatedButton padding for textScaleFactor, textDirection', () { |
| const ValueKey<String> buttonKey = ValueKey<String>('button'); |
| const ValueKey<String> labelKey = ValueKey<String>('label'); |
| const ValueKey<String> iconKey = ValueKey<String>('icon'); |
| |
| const List<double> textScaleFactorOptions = <double>[0.5, 1.0, 1.25, 1.5, 2.0, 2.5, 3.0, 4.0]; |
| const List<TextDirection> textDirectionOptions = <TextDirection>[TextDirection.ltr, TextDirection.rtl]; |
| const List<Widget?> iconOptions = <Widget?>[null, Icon(Icons.add, size: 18, key: iconKey)]; |
| |
| // Expected values for each textScaleFactor. |
| final Map<double, double> paddingWithoutIconStart = <double, double>{ |
| 0.5: 16, |
| 1: 16, |
| 1.25: 14, |
| 1.5: 12, |
| 2: 8, |
| 2.5: 6, |
| 3: 4, |
| 4: 4, |
| }; |
| final Map<double, double> paddingWithoutIconEnd = <double, double>{ |
| 0.5: 16, |
| 1: 16, |
| 1.25: 14, |
| 1.5: 12, |
| 2: 8, |
| 2.5: 6, |
| 3: 4, |
| 4: 4, |
| }; |
| final Map<double, double> paddingWithIconStart = <double, double>{ |
| 0.5: 12, |
| 1: 12, |
| 1.25: 11, |
| 1.5: 10, |
| 2: 8, |
| 2.5: 8, |
| 3: 8, |
| 4: 8, |
| }; |
| final Map<double, double> paddingWithIconEnd = <double, double>{ |
| 0.5: 16, |
| 1: 16, |
| 1.25: 14, |
| 1.5: 12, |
| 2: 8, |
| 2.5: 6, |
| 3: 4, |
| 4: 4, |
| }; |
| final Map<double, double> paddingWithIconGap = <double, double>{ |
| 0.5: 8, |
| 1: 8, |
| 1.25: 7, |
| 1.5: 6, |
| 2: 4, |
| 2.5: 4, |
| 3: 4, |
| 4: 4, |
| }; |
| |
| Rect globalBounds(RenderBox renderBox) { |
| final Offset topLeft = renderBox.localToGlobal(Offset.zero); |
| return topLeft & renderBox.size; |
| } |
| |
| /// Computes the padding between two [Rect]s, one inside the other. |
| EdgeInsets paddingBetween({ required Rect parent, required Rect child }) { |
| assert (parent.intersect(child) == child); |
| return EdgeInsets.fromLTRB( |
| child.left - parent.left, |
| child.top - parent.top, |
| parent.right - child.right, |
| parent.bottom - child.bottom, |
| ); |
| } |
| |
| for (final double textScaleFactor in textScaleFactorOptions) { |
| for (final TextDirection textDirection in textDirectionOptions) { |
| for (final Widget? icon in iconOptions) { |
| final String testName = 'ElevatedButton' |
| ', text scale $textScaleFactor' |
| '${icon != null ? ", with icon" : ""}' |
| '${textDirection == TextDirection.rtl ? ", RTL" : ""}'; |
| |
| testWidgets(testName, (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData.from(colorScheme: const ColorScheme.light()), |
| home: Builder( |
| builder: (BuildContext context) { |
| return MediaQuery( |
| data: MediaQuery.of(context)!.copyWith( |
| textScaleFactor: textScaleFactor, |
| ), |
| child: Directionality( |
| textDirection: textDirection, |
| child: Scaffold( |
| body: Center( |
| child: icon == null |
| ? ElevatedButton( |
| key: buttonKey, |
| onPressed: () {}, |
| child: const Text('button', key: labelKey), |
| ) |
| : ElevatedButton.icon( |
| key: buttonKey, |
| onPressed: () {}, |
| icon: icon, |
| label: const Text('button', key: labelKey), |
| ), |
| ), |
| ), |
| ), |
| ); |
| }, |
| ), |
| ), |
| ); |
| |
| final Element paddingElement = tester.element( |
| find.descendant( |
| of: find.byKey(buttonKey), |
| matching: find.byType(Padding), |
| ), |
| ); |
| expect(Directionality.of(paddingElement), textDirection); |
| final Padding paddingWidget = paddingElement.widget as Padding; |
| |
| // Compute expected padding, and check. |
| |
| final double expectedStart = icon != null |
| ? paddingWithIconStart[textScaleFactor]! |
| : paddingWithoutIconStart[textScaleFactor]!; |
| final double expectedEnd = icon != null |
| ? paddingWithIconEnd[textScaleFactor]! |
| : paddingWithoutIconEnd[textScaleFactor]!; |
| final EdgeInsets expectedPadding = EdgeInsetsDirectional.fromSTEB(expectedStart, 0, expectedEnd, 0) |
| .resolve(textDirection); |
| |
| expect(paddingWidget.padding.resolve(textDirection), expectedPadding); |
| |
| // Measure padding in terms of the difference between the button and its label child |
| // and check that. |
| |
| final RenderBox labelRenderBox = tester.renderObject<RenderBox>(find.byKey(labelKey)); |
| final Rect labelBounds = globalBounds(labelRenderBox); |
| final RenderBox? iconRenderBox = icon == null ? null : tester.renderObject<RenderBox>(find.byKey(iconKey)); |
| final Rect? iconBounds = icon == null ? null : globalBounds(iconRenderBox!); |
| final Rect childBounds = icon == null ? labelBounds : labelBounds.expandToInclude(iconBounds!); |
| |
| // We measure the `InkResponse` descendant of the button |
| // element, because the button has a larger `RenderBox` |
| // which accommodates the minimum tap target with a height |
| // of 48. |
| final RenderBox buttonRenderBox = tester.renderObject<RenderBox>( |
| find.descendant( |
| of: find.byKey(buttonKey), |
| matching: find.byWidgetPredicate( |
| (Widget widget) => widget is InkResponse, |
| ), |
| ), |
| ); |
| final Rect buttonBounds = globalBounds(buttonRenderBox); |
| final EdgeInsets visuallyMeasuredPadding = paddingBetween( |
| parent: buttonBounds, |
| child: childBounds, |
| ); |
| |
| // Since there is a requirement of a minimum width of 64 |
| // and a minimum height of 36 on material buttons, the visual |
| // padding of smaller buttons may not match their settings. |
| // Therefore, we only test buttons that are large enough. |
| if (buttonBounds.width > 64) { |
| expect( |
| visuallyMeasuredPadding.left, |
| expectedPadding.left, |
| ); |
| expect( |
| visuallyMeasuredPadding.right, |
| expectedPadding.right, |
| ); |
| } |
| |
| if (buttonBounds.height > 36) { |
| expect( |
| visuallyMeasuredPadding.top, |
| expectedPadding.top, |
| ); |
| expect( |
| visuallyMeasuredPadding.bottom, |
| expectedPadding.bottom, |
| ); |
| } |
| |
| // Check the gap between the icon and the label |
| if (icon != null) { |
| final double gapWidth = textDirection == TextDirection.ltr |
| ? labelBounds.left - iconBounds!.right |
| : iconBounds!.left - labelBounds.right; |
| expect(gapWidth, paddingWithIconGap[textScaleFactor]); |
| } |
| |
| // Check the text's height - should be consistent with the textScaleFactor. |
| final RenderBox textRenderObject = tester.renderObject<RenderBox>( |
| find.descendant( |
| of: find.byKey(labelKey), |
| matching: find.byElementPredicate( |
| (Element element) => element.widget is RichText, |
| ), |
| ), |
| ); |
| final double textHeight = textRenderObject.paintBounds.size.height; |
| final double expectedTextHeight = 14 * textScaleFactor; |
| expect(textHeight, moreOrLessEquals(expectedTextHeight, epsilon: 0.5)); |
| }); |
| } |
| } |
| } |
| }); |
| |
| testWidgets('Override ElevatedButton default padding', (WidgetTester tester) async { |
| await tester.pumpWidget( |
| MaterialApp( |
| theme: ThemeData.from(colorScheme: const ColorScheme.light()), |
| home: Builder( |
| builder: (BuildContext context) { |
| return MediaQuery( |
| data: MediaQuery.of(context)!.copyWith( |
| textScaleFactor: 2, |
| ), |
| child: Scaffold( |
| body: Center( |
| child: ElevatedButton( |
| style: ElevatedButton.styleFrom(padding: const EdgeInsets.all(22)), |
| onPressed: () {}, |
| child: const Text('ElevatedButton') |
| ), |
| ), |
| ), |
| ); |
| }, |
| ), |
| ), |
| ); |
| |
| final Padding paddingWidget = tester.widget<Padding>( |
| find.descendant( |
| of: find.byType(ElevatedButton), |
| matching: find.byType(Padding), |
| ), |
| ); |
| expect(paddingWidget.padding, const EdgeInsets.all(22)); |
| }); |
| |
| testWidgets('Elevated buttons animate elevation before color on disable', (WidgetTester tester) async { |
| // This is a regression test for https://github.com/flutter/flutter/issues/387 |
| |
| const ColorScheme colorScheme = ColorScheme.light(); |
| final Color backgroundColor = colorScheme.primary; |
| final Color disabledBackgroundColor = colorScheme.onSurface.withOpacity(0.12); |
| |
| Widget buildFrame({ required bool enabled }) { |
| return MaterialApp( |
| theme: ThemeData.from(colorScheme: colorScheme), |
| home: Center( |
| child: ElevatedButton( |
| onPressed: enabled ? () { } : null, |
| child: const Text('button'), |
| ), |
| ), |
| ); |
| } |
| |
| PhysicalShape physicalShape() { |
| return tester.widget<PhysicalShape>( |
| find.descendant( |
| of: find.byType(ElevatedButton), |
| matching: find.byType(PhysicalShape), |
| ), |
| ); |
| } |
| |
| // Default elevation is 2, background color is primary. |
| await tester.pumpWidget(buildFrame(enabled: true)); |
| expect(physicalShape().elevation, 2); |
| expect(physicalShape().color, backgroundColor); |
| |
| // Disabled elevation animates to 0 over 200ms, THEN the background |
| // color changes to onSurface.withOpacity(0.12) |
| await tester.pumpWidget(buildFrame(enabled: false)); |
| await tester.pump(const Duration(milliseconds: 50)); |
| expect(physicalShape().elevation, lessThan(2)); |
| expect(physicalShape().color, backgroundColor); |
| await tester.pump(const Duration(milliseconds: 150)); |
| expect(physicalShape().elevation, 0); |
| expect(physicalShape().color, backgroundColor); |
| await tester.pumpAndSettle(); |
| expect(physicalShape().elevation, 0); |
| expect(physicalShape().color, disabledBackgroundColor); |
| }); |
| } |
| |
| 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!; |
| } |
