| // Copyright 2016 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:flutter_test/flutter_test.dart'; |
| import 'package:flutter/foundation.dart'; |
| import 'package:flutter/material.dart'; |
| import 'package:flutter/rendering.dart'; |
| import 'package:flutter/widgets.dart'; |
| |
| import 'semantics_tester.dart'; |
| |
| void main() { |
| bool tapped; |
| Widget tapTarget; |
| |
| setUp(() { |
| tapped = false; |
| tapTarget = new GestureDetector( |
| onTap: () { |
| tapped = true; |
| }, |
| child: const SizedBox( |
| width: 10.0, |
| height: 10.0, |
| child: const Text('target', textDirection: TextDirection.ltr) |
| ) |
| ); |
| }); |
| |
| testWidgets('ModalBarrier prevents interactions with widgets behind it', (WidgetTester tester) async { |
| final Widget subject = new Stack( |
| textDirection: TextDirection.ltr, |
| children: <Widget>[ |
| tapTarget, |
| const ModalBarrier(dismissible: false), |
| ] |
| ); |
| |
| await tester.pumpWidget(subject); |
| await tester.tap(find.text('target')); |
| await tester.pumpWidget(subject); |
| expect(tapped, isFalse, |
| reason: 'because the tap is prevented by ModalBarrier'); |
| }); |
| |
| testWidgets('ModalBarrier does not prevent interactions with widgets in front of it', (WidgetTester tester) async { |
| final Widget subject = new Stack( |
| textDirection: TextDirection.ltr, |
| children: <Widget>[ |
| const ModalBarrier(dismissible: false), |
| tapTarget, |
| ] |
| ); |
| |
| await tester.pumpWidget(subject); |
| await tester.tap(find.text('target')); |
| await tester.pumpWidget(subject); |
| expect(tapped, isTrue, |
| reason: 'because the tap is not prevented by ModalBarrier'); |
| }); |
| |
| testWidgets('ModalBarrier pops the Navigator when dismissed', (WidgetTester tester) async { |
| final Map<String, WidgetBuilder> routes = <String, WidgetBuilder>{ |
| '/': (BuildContext context) => new FirstWidget(), |
| '/modal': (BuildContext context) => new SecondWidget(), |
| }; |
| |
| await tester.pumpWidget(new MaterialApp(routes: routes)); |
| |
| // Initially the barrier is not visible |
| expect(find.byKey(const ValueKey<String>('barrier')), findsNothing); |
| |
| // Tapping on X routes to the barrier |
| await tester.tap(find.text('X')); |
| await tester.pump(); // begin transition |
| await tester.pump(const Duration(seconds: 1)); // end transition |
| |
| // Tap on the barrier to dismiss it |
| await tester.tap(find.byKey(const ValueKey<String>('barrier'))); |
| await tester.pump(); // begin transition |
| await tester.pump(const Duration(seconds: 1)); // end transition |
| |
| expect(find.byKey(const ValueKey<String>('barrier')), findsNothing, |
| reason: 'The route should have been dismissed by tapping the barrier.'); |
| }); |
| |
| testWidgets('Undismissible ModalBarrier hidden in semantic tree', (WidgetTester tester) async { |
| final SemanticsTester semantics = new SemanticsTester(tester); |
| await tester.pumpWidget(const ModalBarrier(dismissible: false)); |
| |
| final TestSemantics expectedSemantics = new TestSemantics.root(); |
| expect(semantics, hasSemantics(expectedSemantics)); |
| |
| semantics.dispose(); |
| }); |
| |
| testWidgets('Dismissible ModalBarrier includes button in semantic tree on iOS', (WidgetTester tester) async { |
| debugDefaultTargetPlatformOverride = TargetPlatform.iOS; |
| |
| final SemanticsTester semantics = new SemanticsTester(tester); |
| await tester.pumpWidget(const Directionality( |
| textDirection: TextDirection.ltr, |
| child: const ModalBarrier( |
| dismissible: true, |
| semanticsLabel: 'Dismiss', |
| ), |
| )); |
| |
| final TestSemantics expectedSemantics = new TestSemantics.root( |
| children: <TestSemantics>[ |
| new TestSemantics.rootChild( |
| rect: TestSemantics.fullScreen, |
| actions: SemanticsAction.tap.index, |
| label: 'Dismiss', |
| textDirection: TextDirection.ltr, |
| ), |
| ] |
| ); |
| expect(semantics, hasSemantics(expectedSemantics, ignoreId: true)); |
| |
| semantics.dispose(); |
| debugDefaultTargetPlatformOverride = null; |
| }); |
| |
| testWidgets('Dismissible ModalBarrier is hidden on Android (back button is used to dismiss)', (WidgetTester tester) async { |
| final SemanticsTester semantics = new SemanticsTester(tester); |
| await tester.pumpWidget(const ModalBarrier(dismissible: true)); |
| |
| final TestSemantics expectedSemantics = new TestSemantics.root(); |
| expect(semantics, hasSemantics(expectedSemantics)); |
| |
| semantics.dispose(); |
| }); |
| } |
| |
| class FirstWidget extends StatelessWidget { |
| @override |
| Widget build(BuildContext context) { |
| return new GestureDetector( |
| onTap: () { |
| Navigator.pushNamed(context, '/modal'); |
| }, |
| child: new Container( |
| child: const Text('X') |
| ) |
| ); |
| } |
| } |
| |
| class SecondWidget extends StatelessWidget { |
| @override |
| Widget build(BuildContext context) { |
| return const ModalBarrier( |
| key: const ValueKey<String>('barrier'), |
| dismissible: true |
| ); |
| } |
| } |