blob: 7be600f272c34a3300e633484bcb082a8b9d68ec [file] [log] [blame]
// 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
);
}
}