a7d7652a5f
* Set text direction in semantics along with Directionality * update tests for the extra SemanticsNode
1742 lines
60 KiB
Dart
1742 lines
60 KiB
Dart
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:flutter_test/flutter_test.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/widgets.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter/physics.dart';
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import '../rendering/mock_canvas.dart';
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import '../rendering/recording_canvas.dart';
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import '../widgets/semantics_tester.dart';
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Widget boilerplate({ Widget child, TextDirection textDirection: TextDirection.ltr }) {
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return new Localizations(
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locale: const Locale('en', 'US'),
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delegates: const <LocalizationsDelegate<dynamic>>[
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DefaultMaterialLocalizations.delegate,
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DefaultWidgetsLocalizations.delegate,
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],
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child: new Directionality(
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textDirection: textDirection,
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child: new Material(
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child: child,
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),
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),
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);
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}
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class StateMarker extends StatefulWidget {
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const StateMarker({ Key key, this.child }) : super(key: key);
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final Widget child;
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@override
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StateMarkerState createState() => new StateMarkerState();
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}
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class StateMarkerState extends State<StateMarker> {
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String marker;
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@override
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Widget build(BuildContext context) {
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if (widget.child != null)
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return widget.child;
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return new Container();
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}
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}
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Widget buildFrame({
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Key tabBarKey,
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List<String> tabs,
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String value,
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bool isScrollable: false,
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Color indicatorColor,
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}) {
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return boilerplate(
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child: new DefaultTabController(
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initialIndex: tabs.indexOf(value),
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length: tabs.length,
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child: new TabBar(
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key: tabBarKey,
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tabs: tabs.map((String tab) => new Tab(text: tab)).toList(),
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isScrollable: isScrollable,
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indicatorColor: indicatorColor,
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),
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),
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);
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}
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typedef Widget TabControllerFrameBuilder(BuildContext context, TabController controller);
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class TabControllerFrame extends StatefulWidget {
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const TabControllerFrame({ this.length, this.initialIndex: 0, this.builder });
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final int length;
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final int initialIndex;
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final TabControllerFrameBuilder builder;
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@override
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TabControllerFrameState createState() => new TabControllerFrameState();
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}
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class TabControllerFrameState extends State<TabControllerFrame> with SingleTickerProviderStateMixin {
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TabController _controller;
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@override
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void initState() {
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super.initState();
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_controller = new TabController(
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vsync: this,
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length: widget.length,
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initialIndex: widget.initialIndex,
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);
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}
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@override
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void dispose() {
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_controller.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return widget.builder(context, _controller);
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}
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}
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Widget buildLeftRightApp({ List<String> tabs, String value }) {
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return new MaterialApp(
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theme: new ThemeData(platform: TargetPlatform.android),
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home: new DefaultTabController(
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initialIndex: tabs.indexOf(value),
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length: tabs.length,
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child: new Scaffold(
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appBar: new AppBar(
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title: const Text('tabs'),
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bottom: new TabBar(
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tabs: tabs.map((String tab) => new Tab(text: tab)).toList(),
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),
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),
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body: const TabBarView(
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children: const <Widget>[
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const Center(child: const Text('LEFT CHILD')),
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const Center(child: const Text('RIGHT CHILD'))
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]
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)
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)
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)
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);
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}
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class TabIndicatorRecordingCanvas extends TestRecordingCanvas {
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TabIndicatorRecordingCanvas(this.indicatorColor);
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final Color indicatorColor;
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Rect indicatorRect;
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@override
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void drawLine(Offset p1, Offset p2, Paint paint) {
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// Assuming that the indicatorWeight is 2.0, the default.
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const double indicatorWeight = 2.0;
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if (paint.color == indicatorColor)
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indicatorRect = new Rect.fromPoints(p1, p2).inflate(indicatorWeight / 2.0);
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}
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}
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class TestScrollPhysics extends ScrollPhysics {
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const TestScrollPhysics({ ScrollPhysics parent }) : super(parent: parent);
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@override
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TestScrollPhysics applyTo(ScrollPhysics ancestor) {
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return new TestScrollPhysics(parent: buildParent(ancestor));
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}
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static final SpringDescription _kDefaultSpring = new SpringDescription.withDampingRatio(
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mass: 0.5,
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stiffness: 500.0,
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ratio: 1.1,
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);
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@override
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SpringDescription get spring => _kDefaultSpring;
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}
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void main() {
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setUp(() {
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debugResetSemanticsIdCounter();
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});
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testWidgets('TabBar tap selects tab', (WidgetTester tester) async {
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final List<String> tabs = <String>['A', 'B', 'C'];
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await tester.pumpWidget(buildFrame(tabs: tabs, value: 'C', isScrollable: false));
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expect(find.text('A'), findsOneWidget);
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expect(find.text('B'), findsOneWidget);
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expect(find.text('C'), findsOneWidget);
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final TabController controller = DefaultTabController.of(tester.element(find.text('A')));
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expect(controller, isNotNull);
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expect(controller.index, 2);
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expect(controller.previousIndex, 2);
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await tester.pumpWidget(buildFrame(tabs: tabs, value: 'C', isScrollable: false));
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await tester.tap(find.text('B'));
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await tester.pump();
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expect(controller.indexIsChanging, true);
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await tester.pump(const Duration(seconds: 1)); // finish the animation
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expect(controller.index, 1);
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expect(controller.previousIndex, 2);
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expect(controller.indexIsChanging, false);
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await tester.pumpWidget(buildFrame(tabs: tabs, value: 'C', isScrollable: false));
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await tester.tap(find.text('C'));
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await tester.pump();
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await tester.pump(const Duration(seconds: 1));
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expect(controller.index, 2);
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expect(controller.previousIndex, 1);
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await tester.pumpWidget(buildFrame(tabs: tabs, value: 'C', isScrollable: false));
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await tester.tap(find.text('A'));
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await tester.pump();
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await tester.pump(const Duration(seconds: 1));
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expect(controller.index, 0);
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expect(controller.previousIndex, 2);
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});
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testWidgets('Scrollable TabBar tap selects tab', (WidgetTester tester) async {
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final List<String> tabs = <String>['A', 'B', 'C'];
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await tester.pumpWidget(buildFrame(tabs: tabs, value: 'C', isScrollable: true));
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expect(find.text('A'), findsOneWidget);
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expect(find.text('B'), findsOneWidget);
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expect(find.text('C'), findsOneWidget);
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final TabController controller = DefaultTabController.of(tester.element(find.text('A')));
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expect(controller.index, 2);
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expect(controller.previousIndex, 2);
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await tester.tap(find.text('C'));
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await tester.pumpAndSettle();
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expect(controller.index, 2);
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await tester.tap(find.text('B'));
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await tester.pumpAndSettle();
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expect(controller.index, 1);
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await tester.tap(find.text('A'));
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await tester.pumpAndSettle();
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expect(controller.index, 0);
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});
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testWidgets('Scrollable TabBar tap centers selected tab', (WidgetTester tester) async {
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final List<String> tabs = <String>['AAAAAA', 'BBBBBB', 'CCCCCC', 'DDDDDD', 'EEEEEE', 'FFFFFF', 'GGGGGG', 'HHHHHH', 'IIIIII', 'JJJJJJ', 'KKKKKK', 'LLLLLL'];
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const Key tabBarKey = const Key('TabBar');
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await tester.pumpWidget(buildFrame(tabs: tabs, value: 'AAAAAA', isScrollable: true, tabBarKey: tabBarKey));
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final TabController controller = DefaultTabController.of(tester.element(find.text('AAAAAA')));
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expect(controller, isNotNull);
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expect(controller.index, 0);
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expect(tester.getSize(find.byKey(tabBarKey)).width, equals(800.0));
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// The center of the FFFFFF item is to the right of the TabBar's center
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expect(tester.getCenter(find.text('FFFFFF')).dx, greaterThan(401.0));
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await tester.tap(find.text('FFFFFF'));
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await tester.pumpAndSettle();
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expect(controller.index, 5);
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// The center of the FFFFFF item is now at the TabBar's center
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expect(tester.getCenter(find.text('FFFFFF')).dx, closeTo(400.0, 1.0));
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});
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testWidgets('TabBar can be scrolled independent of the selection', (WidgetTester tester) async {
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final List<String> tabs = <String>['AAAA', 'BBBB', 'CCCC', 'DDDD', 'EEEE', 'FFFF', 'GGGG', 'HHHH', 'IIII', 'JJJJ', 'KKKK', 'LLLL'];
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const Key tabBarKey = const Key('TabBar');
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await tester.pumpWidget(buildFrame(tabs: tabs, value: 'AAAA', isScrollable: true, tabBarKey: tabBarKey));
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final TabController controller = DefaultTabController.of(tester.element(find.text('AAAA')));
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expect(controller, isNotNull);
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expect(controller.index, 0);
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// Fling-scroll the TabBar to the left
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expect(tester.getCenter(find.text('HHHH')).dx, lessThan(700.0));
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await tester.fling(find.byKey(tabBarKey), const Offset(-200.0, 0.0), 10000.0);
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await tester.pump();
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await tester.pump(const Duration(seconds: 1)); // finish the scroll animation
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expect(tester.getCenter(find.text('HHHH')).dx, lessThan(500.0));
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// Scrolling the TabBar doesn't change the selection
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expect(controller.index, 0);
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});
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testWidgets('TabBarView maintains state', (WidgetTester tester) async {
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final List<String> tabs = <String>['AAAAAA', 'BBBBBB', 'CCCCCC', 'DDDDDD', 'EEEEEE'];
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String value = tabs[0];
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Widget builder() {
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return boilerplate(
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child: new DefaultTabController(
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initialIndex: tabs.indexOf(value),
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length: tabs.length,
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child: new TabBarView(
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children: tabs.map((String name) {
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return new StateMarker(
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child: new Text(name)
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);
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}).toList()
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),
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),
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);
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}
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StateMarkerState findStateMarkerState(String name) {
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return tester.state(find.widgetWithText(StateMarker, name));
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}
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await tester.pumpWidget(builder());
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final TabController controller = DefaultTabController.of(tester.element(find.text('AAAAAA')));
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TestGesture gesture = await tester.startGesture(tester.getCenter(find.text(tabs[0])));
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await gesture.moveBy(const Offset(-600.0, 0.0));
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await tester.pump();
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expect(value, equals(tabs[0]));
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findStateMarkerState(tabs[1]).marker = 'marked';
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await gesture.up();
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await tester.pump();
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await tester.pump(const Duration(seconds: 1));
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value = tabs[controller.index];
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expect(value, equals(tabs[1]));
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await tester.pumpWidget(builder());
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expect(findStateMarkerState(tabs[1]).marker, equals('marked'));
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// Move to the third tab.
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gesture = await tester.startGesture(tester.getCenter(find.text(tabs[1])));
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await gesture.moveBy(const Offset(-600.0, 0.0));
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await gesture.up();
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await tester.pump();
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expect(findStateMarkerState(tabs[1]).marker, equals('marked'));
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await tester.pump(const Duration(seconds: 1));
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value = tabs[controller.index];
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expect(value, equals(tabs[2]));
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await tester.pumpWidget(builder());
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// The state is now gone.
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expect(find.text(tabs[1]), findsNothing);
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// Move back to the second tab.
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gesture = await tester.startGesture(tester.getCenter(find.text(tabs[2])));
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await gesture.moveBy(const Offset(600.0, 0.0));
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await tester.pump();
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final StateMarkerState markerState = findStateMarkerState(tabs[1]);
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expect(markerState.marker, isNull);
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markerState.marker = 'marked';
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await gesture.up();
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await tester.pump();
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await tester.pump(const Duration(seconds: 1));
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value = tabs[controller.index];
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expect(value, equals(tabs[1]));
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await tester.pumpWidget(builder());
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expect(findStateMarkerState(tabs[1]).marker, equals('marked'));
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});
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testWidgets('TabBar left/right fling', (WidgetTester tester) async {
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final List<String> tabs = <String>['LEFT', 'RIGHT'];
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await tester.pumpWidget(buildLeftRightApp(tabs: tabs, value: 'LEFT'));
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expect(find.text('LEFT'), findsOneWidget);
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expect(find.text('RIGHT'), findsOneWidget);
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expect(find.text('LEFT CHILD'), findsOneWidget);
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expect(find.text('RIGHT CHILD'), findsNothing);
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final TabController controller = DefaultTabController.of(tester.element(find.text('LEFT')));
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expect(controller.index, 0);
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// Fling to the left, switch from the 'LEFT' tab to the 'RIGHT'
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Offset flingStart = tester.getCenter(find.text('LEFT CHILD'));
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await tester.flingFrom(flingStart, const Offset(-200.0, 0.0), 10000.0);
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await tester.pumpAndSettle();
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expect(controller.index, 1);
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expect(find.text('LEFT CHILD'), findsNothing);
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expect(find.text('RIGHT CHILD'), findsOneWidget);
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// Fling to the right, switch back to the 'LEFT' tab
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flingStart = tester.getCenter(find.text('RIGHT CHILD'));
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await tester.flingFrom(flingStart, const Offset(200.0, 0.0), 10000.0);
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await tester.pumpAndSettle();
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expect(controller.index, 0);
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expect(find.text('LEFT CHILD'), findsOneWidget);
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expect(find.text('RIGHT CHILD'), findsNothing);
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});
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testWidgets('TabBar left/right fling reverse (1)', (WidgetTester tester) async {
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final List<String> tabs = <String>['LEFT', 'RIGHT'];
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await tester.pumpWidget(buildLeftRightApp(tabs: tabs, value: 'LEFT'));
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expect(find.text('LEFT'), findsOneWidget);
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expect(find.text('RIGHT'), findsOneWidget);
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expect(find.text('LEFT CHILD'), findsOneWidget);
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expect(find.text('RIGHT CHILD'), findsNothing);
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final TabController controller = DefaultTabController.of(tester.element(find.text('LEFT')));
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expect(controller.index, 0);
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final Offset flingStart = tester.getCenter(find.text('LEFT CHILD'));
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await tester.flingFrom(flingStart, const Offset(200.0, 0.0), 10000.0);
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await tester.pump();
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await tester.pump(const Duration(seconds: 1)); // finish the scroll animation
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expect(controller.index, 0);
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expect(find.text('LEFT CHILD'), findsOneWidget);
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expect(find.text('RIGHT CHILD'), findsNothing);
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});
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testWidgets('TabBar left/right fling reverse (2)', (WidgetTester tester) async {
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final List<String> tabs = <String>['LEFT', 'RIGHT'];
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await tester.pumpWidget(buildLeftRightApp(tabs: tabs, value: 'LEFT'));
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expect(find.text('LEFT'), findsOneWidget);
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expect(find.text('RIGHT'), findsOneWidget);
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expect(find.text('LEFT CHILD'), findsOneWidget);
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expect(find.text('RIGHT CHILD'), findsNothing);
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final TabController controller = DefaultTabController.of(tester.element(find.text('LEFT')));
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expect(controller.index, 0);
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final Offset flingStart = tester.getCenter(find.text('LEFT CHILD'));
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await tester.flingFrom(flingStart, const Offset(-200.0, 0.0), 10000.0);
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await tester.pump();
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// this is similar to a test above, but that one does many more pumps
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await tester.pump(const Duration(seconds: 1)); // finish the scroll animation
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expect(controller.index, 1);
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expect(find.text('LEFT CHILD'), findsNothing);
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expect(find.text('RIGHT CHILD'), findsOneWidget);
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});
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// A regression test for https://github.com/flutter/flutter/issues/5095
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testWidgets('TabBar left/right fling reverse (2)', (WidgetTester tester) async {
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final List<String> tabs = <String>['LEFT', 'RIGHT'];
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await tester.pumpWidget(buildLeftRightApp(tabs: tabs, value: 'LEFT'));
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expect(find.text('LEFT'), findsOneWidget);
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expect(find.text('RIGHT'), findsOneWidget);
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expect(find.text('LEFT CHILD'), findsOneWidget);
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expect(find.text('RIGHT CHILD'), findsNothing);
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final TabController controller = DefaultTabController.of(tester.element(find.text('LEFT')));
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expect(controller.index, 0);
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final Offset flingStart = tester.getCenter(find.text('LEFT CHILD'));
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final TestGesture gesture = await tester.startGesture(flingStart);
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for (int index = 0; index > 50; index += 1) {
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await gesture.moveBy(const Offset(-10.0, 0.0));
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await tester.pump(const Duration(milliseconds: 1));
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}
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// End the fling by reversing direction. This should cause not cause
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// a change to the selected tab, everything should just settle back to
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// to where it started.
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for (int index = 0; index > 50; index += 1) {
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await gesture.moveBy(const Offset(10.0, 0.0));
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await tester.pump(const Duration(milliseconds: 1));
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}
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await gesture.up();
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await tester.pump();
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await tester.pump(const Duration(seconds: 1)); // finish the scroll animation
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expect(controller.index, 0);
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expect(find.text('LEFT CHILD'), findsOneWidget);
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expect(find.text('RIGHT CHILD'), findsNothing);
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});
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// A regression test for https://github.com/flutter/flutter/issues/7133
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testWidgets('TabBar fling velocity', (WidgetTester tester) async {
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final List<String> tabs = <String>['AAAAAA', 'BBBBBB', 'CCCCCC', 'DDDDDD', 'EEEEEE', 'FFFFFF', 'GGGGGG', 'HHHHHH', 'IIIIII', 'JJJJJJ', 'KKKKKK', 'LLLLLL'];
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int index = 0;
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await tester.pumpWidget(
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new MaterialApp(
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home: new Align(
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alignment: Alignment.topLeft,
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child: new SizedBox(
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width: 300.0,
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height: 200.0,
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child: new DefaultTabController(
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length: tabs.length,
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child: new Scaffold(
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appBar: new AppBar(
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title: const Text('tabs'),
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bottom: new TabBar(
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isScrollable: true,
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tabs: tabs.map((String tab) => new Tab(text: tab)).toList(),
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),
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),
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body: new TabBarView(
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children: tabs.map((String name) => new Text('${index++}')).toList(),
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),
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),
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),
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),
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),
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),
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);
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|
|
|
// After a small slow fling to the left, we expect the second item to still be visible.
|
|
await tester.fling(find.text('AAAAAA'), const Offset(-25.0, 0.0), 100.0);
|
|
await tester.pump();
|
|
await tester.pump(const Duration(seconds: 1)); // finish the scroll animation
|
|
final RenderBox box = tester.renderObject(find.text('BBBBBB'));
|
|
expect(box.localToGlobal(Offset.zero).dx, greaterThan(0.0));
|
|
});
|
|
|
|
testWidgets('TabController change notification', (WidgetTester tester) async {
|
|
final List<String> tabs = <String>['LEFT', 'RIGHT'];
|
|
|
|
await tester.pumpWidget(buildLeftRightApp(tabs: tabs, value: 'LEFT'));
|
|
final TabController controller = DefaultTabController.of(tester.element(find.text('LEFT')));
|
|
|
|
expect(controller, isNotNull);
|
|
expect(controller.index, 0);
|
|
|
|
String value;
|
|
controller.addListener(() {
|
|
value = tabs[controller.index];
|
|
});
|
|
|
|
await tester.tap(find.text('RIGHT'));
|
|
await tester.pumpAndSettle();
|
|
expect(value, 'RIGHT');
|
|
|
|
await tester.tap(find.text('LEFT'));
|
|
await tester.pumpAndSettle();
|
|
expect(value, 'LEFT');
|
|
|
|
final Offset leftFlingStart = tester.getCenter(find.text('LEFT CHILD'));
|
|
await tester.flingFrom(leftFlingStart, const Offset(-200.0, 0.0), 10000.0);
|
|
await tester.pumpAndSettle();
|
|
expect(value, 'RIGHT');
|
|
|
|
final Offset rightFlingStart = tester.getCenter(find.text('RIGHT CHILD'));
|
|
await tester.flingFrom(rightFlingStart, const Offset(200.0, 0.0), 10000.0);
|
|
await tester.pumpAndSettle();
|
|
expect(value, 'LEFT');
|
|
});
|
|
|
|
testWidgets('Explicit TabController', (WidgetTester tester) async {
|
|
final List<String> tabs = <String>['LEFT', 'RIGHT'];
|
|
TabController tabController;
|
|
|
|
Widget buildTabControllerFrame(BuildContext context, TabController controller) {
|
|
tabController = controller;
|
|
return new MaterialApp(
|
|
theme: new ThemeData(platform: TargetPlatform.android),
|
|
home: new Scaffold(
|
|
appBar: new AppBar(
|
|
title: const Text('tabs'),
|
|
bottom: new TabBar(
|
|
controller: controller,
|
|
tabs: tabs.map((String tab) => new Tab(text: tab)).toList(),
|
|
),
|
|
),
|
|
body: new TabBarView(
|
|
controller: controller,
|
|
children: const <Widget>[
|
|
const Center(child: const Text('LEFT CHILD')),
|
|
const Center(child: const Text('RIGHT CHILD'))
|
|
]
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
await tester.pumpWidget(new TabControllerFrame(
|
|
builder: buildTabControllerFrame,
|
|
length: tabs.length,
|
|
initialIndex: 1,
|
|
));
|
|
|
|
expect(find.text('LEFT'), findsOneWidget);
|
|
expect(find.text('RIGHT'), findsOneWidget);
|
|
expect(find.text('LEFT CHILD'), findsNothing);
|
|
expect(find.text('RIGHT CHILD'), findsOneWidget);
|
|
expect(tabController.index, 1);
|
|
expect(tabController.previousIndex, 1);
|
|
expect(tabController.indexIsChanging, false);
|
|
expect(tabController.animation.value, 1.0);
|
|
expect(tabController.animation.status, AnimationStatus.completed);
|
|
|
|
tabController.index = 0;
|
|
await tester.pump(const Duration(milliseconds: 500));
|
|
await tester.pump(const Duration(milliseconds: 500));
|
|
expect(find.text('LEFT CHILD'), findsOneWidget);
|
|
expect(find.text('RIGHT CHILD'), findsNothing);
|
|
|
|
tabController.index = 1;
|
|
await tester.pump(const Duration(milliseconds: 500));
|
|
await tester.pump(const Duration(milliseconds: 500));
|
|
expect(find.text('LEFT CHILD'), findsNothing);
|
|
expect(find.text('RIGHT CHILD'), findsOneWidget);
|
|
});
|
|
|
|
testWidgets('TabController listener resets index', (WidgetTester tester) async {
|
|
// This is a regression test for the scenario brought up here
|
|
// https://github.com/flutter/flutter/pull/7387#pullrequestreview-15630946
|
|
|
|
final List<String> tabs = <String>['A', 'B', 'C'];
|
|
TabController tabController;
|
|
|
|
Widget buildTabControllerFrame(BuildContext context, TabController controller) {
|
|
tabController = controller;
|
|
return new MaterialApp(
|
|
theme: new ThemeData(platform: TargetPlatform.android),
|
|
home: new Scaffold(
|
|
appBar: new AppBar(
|
|
title: const Text('tabs'),
|
|
bottom: new TabBar(
|
|
controller: controller,
|
|
tabs: tabs.map((String tab) => new Tab(text: tab)).toList(),
|
|
),
|
|
),
|
|
body: new TabBarView(
|
|
controller: controller,
|
|
children: const <Widget>[
|
|
const Center(child: const Text('CHILD A')),
|
|
const Center(child: const Text('CHILD B')),
|
|
const Center(child: const Text('CHILD C')),
|
|
]
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
await tester.pumpWidget(new TabControllerFrame(
|
|
builder: buildTabControllerFrame,
|
|
length: tabs.length,
|
|
));
|
|
|
|
tabController.animation.addListener(() {
|
|
if (tabController.animation.status == AnimationStatus.forward)
|
|
tabController.index = 2;
|
|
expect(tabController.indexIsChanging, true);
|
|
});
|
|
|
|
expect(tabController.index, 0);
|
|
expect(tabController.indexIsChanging, false);
|
|
|
|
tabController.animateTo(1, duration: const Duration(milliseconds: 200), curve: Curves.linear);
|
|
await tester.pump();
|
|
await tester.pump(const Duration(milliseconds: 300));
|
|
|
|
expect(tabController.index, 2);
|
|
expect(tabController.indexIsChanging, false);
|
|
});
|
|
|
|
testWidgets('TabBarView child disposed during animation', (WidgetTester tester) async {
|
|
// This is a regression test for the scenario brought up here
|
|
// https://github.com/flutter/flutter/pull/7387#discussion_r95089191x
|
|
|
|
final List<String> tabs = <String>['LEFT', 'RIGHT'];
|
|
await tester.pumpWidget(buildLeftRightApp(tabs: tabs, value: 'LEFT'));
|
|
|
|
// Fling to the left, switch from the 'LEFT' tab to the 'RIGHT'
|
|
final Offset flingStart = tester.getCenter(find.text('LEFT CHILD'));
|
|
await tester.flingFrom(flingStart, const Offset(-200.0, 0.0), 10000.0);
|
|
await tester.pump();
|
|
await tester.pump(const Duration(seconds: 1)); // finish the scroll animation
|
|
});
|
|
|
|
testWidgets('TabBar unselectedLabelColor control test', (WidgetTester tester) async {
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: 2,
|
|
);
|
|
|
|
Color firstColor;
|
|
Color secondColor;
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
child: new TabBar(
|
|
controller: controller,
|
|
labelColor: Colors.green[500],
|
|
unselectedLabelColor: Colors.blue[500],
|
|
tabs: <Widget>[
|
|
new Builder(
|
|
builder: (BuildContext context) {
|
|
firstColor = IconTheme.of(context).color;
|
|
return const Text('First');
|
|
}
|
|
),
|
|
new Builder(
|
|
builder: (BuildContext context) {
|
|
secondColor = IconTheme.of(context).color;
|
|
return const Text('Second');
|
|
}
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(firstColor, equals(Colors.green[500]));
|
|
expect(secondColor, equals(Colors.blue[500]));
|
|
});
|
|
|
|
testWidgets('TabBarView page left and right test', (WidgetTester tester) async {
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: 2,
|
|
);
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
child: new TabBarView(
|
|
controller: controller,
|
|
children: const <Widget>[ const Text('First'), const Text('Second') ],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(controller.index, equals(0));
|
|
|
|
TestGesture gesture = await tester.startGesture(const Offset(100.0, 100.0));
|
|
expect(controller.index, equals(0));
|
|
|
|
// Drag to the left and right, by less than the TabBarView's width.
|
|
// The selected index (controller.index) should not change.
|
|
await gesture.moveBy(const Offset(-100.0, 0.0));
|
|
await gesture.moveBy(const Offset(100.0, 0.0));
|
|
expect(controller.index, equals(0));
|
|
expect(find.text('First'), findsOneWidget);
|
|
expect(find.text('Second'), findsNothing);
|
|
|
|
// Drag more than the TabBarView's width to the right. This forces
|
|
// the selected index to change to 1.
|
|
await gesture.moveBy(const Offset(-500.0, 0.0));
|
|
await gesture.up();
|
|
await tester.pump(); // start the scroll animation
|
|
await tester.pump(const Duration(seconds: 1)); // finish the scroll animation
|
|
expect(controller.index, equals(1));
|
|
expect(find.text('First'), findsNothing);
|
|
expect(find.text('Second'), findsOneWidget);
|
|
|
|
gesture = await tester.startGesture(const Offset(100.0, 100.0));
|
|
expect(controller.index, equals(1));
|
|
|
|
// Drag to the left and right, by less than the TabBarView's width.
|
|
// The selected index (controller.index) should not change.
|
|
await gesture.moveBy(const Offset(-100.0, 0.0));
|
|
await gesture.moveBy(const Offset(100.0, 0.0));
|
|
expect(controller.index, equals(1));
|
|
expect(find.text('First'), findsNothing);
|
|
expect(find.text('Second'), findsOneWidget);
|
|
|
|
// Drag more than the TabBarView's width to the left. This forces
|
|
// the selected index to change back to 0.
|
|
await gesture.moveBy(const Offset(500.0, 0.0));
|
|
await gesture.up();
|
|
await tester.pump(); // start the scroll animation
|
|
await tester.pump(const Duration(seconds: 1)); // finish the scroll animation
|
|
expect(controller.index, equals(0));
|
|
expect(find.text('First'), findsOneWidget);
|
|
expect(find.text('Second'), findsNothing);
|
|
});
|
|
|
|
testWidgets('TabBar tap animates the selection indicator', (WidgetTester tester) async {
|
|
// This is a regression test for https://github.com/flutter/flutter/issues/7479
|
|
|
|
final List<String> tabs = <String>['A', 'B'];
|
|
|
|
const Color indicatorColor = const Color(0xFFFF0000);
|
|
await tester.pumpWidget(buildFrame(tabs: tabs, value: 'A', indicatorColor: indicatorColor));
|
|
|
|
final RenderBox box = tester.renderObject(find.byType(TabBar));
|
|
final TabIndicatorRecordingCanvas canvas = new TabIndicatorRecordingCanvas(indicatorColor);
|
|
final TestRecordingPaintingContext context = new TestRecordingPaintingContext(canvas);
|
|
|
|
box.paint(context, Offset.zero);
|
|
final Rect indicatorRect0 = canvas.indicatorRect;
|
|
expect(indicatorRect0.left, 0.0);
|
|
expect(indicatorRect0.width, 400.0);
|
|
expect(indicatorRect0.height, 2.0);
|
|
|
|
await tester.tap(find.text('B'));
|
|
await tester.pump();
|
|
await tester.pump(const Duration(milliseconds: 50));
|
|
box.paint(context, Offset.zero);
|
|
final Rect indicatorRect1 = canvas.indicatorRect;
|
|
expect(indicatorRect1.left, greaterThan(indicatorRect0.left));
|
|
expect(indicatorRect1.right, lessThan(800.0));
|
|
expect(indicatorRect1.height, 2.0);
|
|
|
|
await tester.pump(const Duration(milliseconds: 300));
|
|
box.paint(context, Offset.zero);
|
|
final Rect indicatorRect2 = canvas.indicatorRect;
|
|
expect(indicatorRect2.left, 400.0);
|
|
expect(indicatorRect2.width, 400.0);
|
|
expect(indicatorRect2.height, 2.0);
|
|
});
|
|
|
|
testWidgets('TabBarView child disposed during animation', (WidgetTester tester) async {
|
|
// This is a regression test for this patch:
|
|
// https://github.com/flutter/flutter/pull/9015
|
|
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: 2,
|
|
);
|
|
|
|
Widget buildFrame() {
|
|
return boilerplate(
|
|
child: new TabBar(
|
|
key: new UniqueKey(),
|
|
controller: controller,
|
|
tabs: const <Widget>[ const Text('A'), const Text('B') ],
|
|
),
|
|
);
|
|
}
|
|
|
|
await tester.pumpWidget(buildFrame());
|
|
|
|
// The original TabBar will be disposed. The controller should no
|
|
// longer have any listeners from the original TabBar.
|
|
await tester.pumpWidget(buildFrame());
|
|
|
|
controller.index = 1;
|
|
await tester.pump(const Duration(milliseconds: 300));
|
|
});
|
|
|
|
testWidgets('TabBarView scrolls end very VERY close to a new page', (WidgetTester tester) async {
|
|
// This is a regression test for https://github.com/flutter/flutter/issues/9375
|
|
|
|
final TabController tabController = new TabController(
|
|
vsync: const TestVSync(),
|
|
initialIndex: 1,
|
|
length: 3,
|
|
);
|
|
|
|
await tester.pumpWidget(new Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: new SizedBox.expand(
|
|
child: new Center(
|
|
child: new SizedBox(
|
|
width: 400.0,
|
|
height: 400.0,
|
|
child: new TabBarView(
|
|
controller: tabController,
|
|
children: const <Widget>[
|
|
const Center(child: const Text('0')),
|
|
const Center(child: const Text('1')),
|
|
const Center(child: const Text('2')),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
));
|
|
|
|
expect(tabController.index, 1);
|
|
|
|
final PageView pageView = tester.widget(find.byType(PageView));
|
|
final PageController pageController = pageView.controller;
|
|
final ScrollPosition position = pageController.position;
|
|
|
|
// The TabBarView's page width is 400, so page 0 is at scroll offset 0.0,
|
|
// page 1 is at 400.0, page 2 is at 800.0.
|
|
|
|
expect(position.pixels, 400.0);
|
|
|
|
// Not close enough to switch to page 2
|
|
pageController.jumpTo(800.0 - 1.25 * position.physics.tolerance.distance);
|
|
expect(tabController.index, 1);
|
|
|
|
// Close enough to switch to page 2
|
|
pageController.jumpTo(800.0 - 0.75 * position.physics.tolerance.distance);
|
|
expect(tabController.index, 2);
|
|
});
|
|
|
|
testWidgets('TabBarView scrolls end very close to a new page with custom physics', (WidgetTester tester) async {
|
|
final TabController tabController = new TabController(
|
|
vsync: const TestVSync(),
|
|
initialIndex: 1,
|
|
length: 3,
|
|
);
|
|
|
|
await tester.pumpWidget(new Directionality(
|
|
textDirection: TextDirection.ltr,
|
|
child: new SizedBox.expand(
|
|
child: new Center(
|
|
child: new SizedBox(
|
|
width: 400.0,
|
|
height: 400.0,
|
|
child: new TabBarView(
|
|
controller: tabController,
|
|
physics: const TestScrollPhysics(),
|
|
children: const <Widget>[
|
|
const Center(child: const Text('0')),
|
|
const Center(child: const Text('1')),
|
|
const Center(child: const Text('2')),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
),
|
|
));
|
|
|
|
expect(tabController.index, 1);
|
|
|
|
final PageView pageView = tester.widget(find.byType(PageView));
|
|
final PageController pageController = pageView.controller;
|
|
final ScrollPosition position = pageController.position;
|
|
|
|
// The TabBarView's page width is 400, so page 0 is at scroll offset 0.0,
|
|
// page 1 is at 400.0, page 2 is at 800.0.
|
|
|
|
expect(position.pixels, 400.0);
|
|
|
|
// Not close enough to switch to page 2
|
|
pageController.jumpTo(800.0 - 1.25 * position.physics.tolerance.distance);
|
|
expect(tabController.index, 1);
|
|
|
|
// Close enough to switch to page 2
|
|
pageController.jumpTo(800.0 - 0.75 * position.physics.tolerance.distance);
|
|
expect(tabController.index, 2);
|
|
});
|
|
|
|
testWidgets('Scrollable TabBar with a non-zero TabController initialIndex', (WidgetTester tester) async {
|
|
// This is a regression test for https://github.com/flutter/flutter/issues/9374
|
|
|
|
final List<Tab> tabs = new List<Tab>.generate(20, (int index) {
|
|
return new Tab(text: 'TAB #$index');
|
|
});
|
|
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: tabs.length,
|
|
initialIndex: tabs.length - 1,
|
|
);
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
child: new TabBar(
|
|
isScrollable: true,
|
|
controller: controller,
|
|
tabs: tabs,
|
|
),
|
|
),
|
|
);
|
|
|
|
// The initialIndex tab should be visible and right justified
|
|
expect(find.text('TAB #19'), findsOneWidget);
|
|
|
|
// Tabs have a minimum width of 72.0 and 'TAB #19' is wider than
|
|
// that. Tabs are padded horizontally with kTabLabelPadding.
|
|
final double tabRight = 800.0 - kTabLabelPadding.right;
|
|
|
|
expect(tester.getTopRight(find.widgetWithText(Tab, 'TAB #19')).dx, tabRight);
|
|
});
|
|
|
|
testWidgets('TabBar with indicatorWeight, indicatorPadding (LTR)', (WidgetTester tester) async {
|
|
const Color indicatorColor = const Color(0xFF00FF00);
|
|
const double indicatorWeight = 8.0;
|
|
const double padLeft = 8.0;
|
|
const double padRight = 4.0;
|
|
|
|
final List<Widget> tabs = new List<Widget>.generate(4, (int index) {
|
|
return new Tab(text: 'Tab $index');
|
|
});
|
|
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: tabs.length,
|
|
);
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
child: new Container(
|
|
alignment: Alignment.topLeft,
|
|
child: new TabBar(
|
|
indicatorWeight: indicatorWeight,
|
|
indicatorColor: indicatorColor,
|
|
indicatorPadding: const EdgeInsets.only(left: padLeft, right: padRight),
|
|
controller: controller,
|
|
tabs: tabs,
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
final RenderBox tabBarBox = tester.firstRenderObject<RenderBox>(find.byType(TabBar));
|
|
expect(tabBarBox.size.height, 54.0); // 54 = _kTabHeight(46) + indicatorWeight(8.0)
|
|
|
|
const double indicatorY = 54.0 - indicatorWeight / 2.0;
|
|
double indicatorLeft = padLeft + indicatorWeight / 2.0;
|
|
double indicatorRight = 200.0 - (padRight + indicatorWeight / 2.0);
|
|
|
|
expect(tabBarBox, paints..line(
|
|
color: indicatorColor,
|
|
strokeWidth: indicatorWeight,
|
|
p1: new Offset(indicatorLeft, indicatorY),
|
|
p2: new Offset(indicatorRight, indicatorY),
|
|
));
|
|
|
|
// Select tab 3
|
|
controller.index = 3;
|
|
await tester.pumpAndSettle();
|
|
|
|
indicatorLeft = 600.0 + padLeft + indicatorWeight / 2.0;
|
|
indicatorRight = 800.0 - (padRight + indicatorWeight / 2.0);
|
|
|
|
expect(tabBarBox, paints..line(
|
|
color: indicatorColor,
|
|
strokeWidth: indicatorWeight,
|
|
p1: new Offset(indicatorLeft, indicatorY),
|
|
p2: new Offset(indicatorRight, indicatorY),
|
|
));
|
|
});
|
|
|
|
testWidgets('TabBar with indicatorWeight, indicatorPadding (RTL)', (WidgetTester tester) async {
|
|
const Color indicatorColor = const Color(0xFF00FF00);
|
|
const double indicatorWeight = 8.0;
|
|
const double padLeft = 8.0;
|
|
const double padRight = 4.0;
|
|
|
|
final List<Widget> tabs = new List<Widget>.generate(4, (int index) {
|
|
return new Tab(text: 'Tab $index');
|
|
});
|
|
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: tabs.length,
|
|
);
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
textDirection: TextDirection.rtl,
|
|
child: new Container(
|
|
alignment: Alignment.topLeft,
|
|
child: new TabBar(
|
|
indicatorWeight: indicatorWeight,
|
|
indicatorColor: indicatorColor,
|
|
indicatorPadding: const EdgeInsets.only(left: padLeft, right: padRight),
|
|
controller: controller,
|
|
tabs: tabs,
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
final RenderBox tabBarBox = tester.firstRenderObject<RenderBox>(find.byType(TabBar));
|
|
expect(tabBarBox.size.height, 54.0); // 54 = _kTabHeight(46) + indicatorWeight(8.0)
|
|
expect(tabBarBox.size.width, 800.0);
|
|
|
|
const double indicatorY = 54.0 - indicatorWeight / 2.0;
|
|
double indicatorLeft = 600.0 + padLeft + indicatorWeight / 2.0;
|
|
double indicatorRight = 800.0 - padRight - indicatorWeight / 2.0;
|
|
|
|
expect(tabBarBox, paints..line(
|
|
color: indicatorColor,
|
|
strokeWidth: indicatorWeight,
|
|
p1: new Offset(indicatorLeft, indicatorY),
|
|
p2: new Offset(indicatorRight, indicatorY),
|
|
));
|
|
|
|
// Select tab 3
|
|
controller.index = 3;
|
|
await tester.pumpAndSettle();
|
|
|
|
indicatorLeft = padLeft + indicatorWeight / 2.0;
|
|
indicatorRight = 200.0 - padRight - indicatorWeight / 2.0;
|
|
|
|
expect(tabBarBox, paints..line(
|
|
color: indicatorColor,
|
|
strokeWidth: indicatorWeight,
|
|
p1: new Offset(indicatorLeft, indicatorY),
|
|
p2: new Offset(indicatorRight, indicatorY),
|
|
));
|
|
});
|
|
|
|
testWidgets('TabBar changes indicator attributes', (WidgetTester tester) async {
|
|
final List<Widget> tabs = new List<Widget>.generate(4, (int index) {
|
|
return new Tab(text: 'Tab $index');
|
|
});
|
|
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: tabs.length,
|
|
);
|
|
|
|
Color indicatorColor = const Color(0xFF00FF00);
|
|
double indicatorWeight = 8.0;
|
|
double padLeft = 8.0;
|
|
double padRight = 4.0;
|
|
|
|
Widget buildFrame() {
|
|
return boilerplate(
|
|
child: new Container(
|
|
alignment: Alignment.topLeft,
|
|
child: new TabBar(
|
|
indicatorWeight: indicatorWeight,
|
|
indicatorColor: indicatorColor,
|
|
indicatorPadding: new EdgeInsets.only(left: padLeft, right: padRight),
|
|
controller: controller,
|
|
tabs: tabs,
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
await tester.pumpWidget(buildFrame());
|
|
|
|
final RenderBox tabBarBox = tester.firstRenderObject<RenderBox>(find.byType(TabBar));
|
|
expect(tabBarBox.size.height, 54.0); // 54 = _kTabHeight(46) + indicatorWeight(8.0)
|
|
|
|
double indicatorY = 54.0 - indicatorWeight / 2.0;
|
|
double indicatorLeft = padLeft + indicatorWeight / 2.0;
|
|
double indicatorRight = 200.0 - (padRight + indicatorWeight / 2.0);
|
|
|
|
expect(tabBarBox, paints..line(
|
|
color: indicatorColor,
|
|
strokeWidth: indicatorWeight,
|
|
p1: new Offset(indicatorLeft, indicatorY),
|
|
p2: new Offset(indicatorRight, indicatorY),
|
|
));
|
|
|
|
indicatorColor = const Color(0xFF0000FF);
|
|
indicatorWeight = 4.0;
|
|
padLeft = 4.0;
|
|
padRight = 8.0;
|
|
|
|
await tester.pumpWidget(buildFrame());
|
|
|
|
expect(tabBarBox.size.height, 50.0); // 54 = _kTabHeight(46) + indicatorWeight(4.0)
|
|
|
|
indicatorY = 50.0 - indicatorWeight / 2.0;
|
|
indicatorLeft = padLeft + indicatorWeight / 2.0;
|
|
indicatorRight = 200.0 - (padRight + indicatorWeight / 2.0);
|
|
|
|
expect(tabBarBox, paints..line(
|
|
color: indicatorColor,
|
|
strokeWidth: indicatorWeight,
|
|
p1: new Offset(indicatorLeft, indicatorY),
|
|
p2: new Offset(indicatorRight, indicatorY),
|
|
));
|
|
});
|
|
|
|
testWidgets('TabBar with directional indicatorPadding (LTR)', (WidgetTester tester) async {
|
|
final List<Widget> tabs = <Widget>[
|
|
new SizedBox(key: new UniqueKey(), width: 130.0, height: 30.0),
|
|
new SizedBox(key: new UniqueKey(), width: 140.0, height: 40.0),
|
|
new SizedBox(key: new UniqueKey(), width: 150.0, height: 50.0),
|
|
];
|
|
|
|
const double indicatorWeight = 2.0; // the default
|
|
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: tabs.length,
|
|
);
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
child: new Container(
|
|
alignment: Alignment.topLeft,
|
|
child: new TabBar(
|
|
indicatorPadding: const EdgeInsetsDirectional.only(start: 100.0),
|
|
isScrollable: true,
|
|
controller: controller,
|
|
tabs: tabs,
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
final RenderBox tabBarBox = tester.firstRenderObject<RenderBox>(find.byType(TabBar));
|
|
const double tabBarHeight = 50.0 + indicatorWeight; // 50 = max tab height
|
|
expect(tabBarBox.size.height, tabBarHeight);
|
|
|
|
// Tab0 width = 130, height = 30
|
|
double tabLeft = kTabLabelPadding.left;
|
|
double tabRight = tabLeft + 130.0;
|
|
double tabTop = (tabBarHeight - indicatorWeight - 30.0) / 2.0;
|
|
double tabBottom = tabTop + 30.0;
|
|
Rect tabRect = new Rect.fromLTRB(tabLeft, tabTop, tabRight, tabBottom);
|
|
expect(tester.getRect(find.byKey(tabs[0].key)), tabRect);
|
|
|
|
|
|
// Tab1 width = 140, height = 40
|
|
tabLeft = tabRight + kTabLabelPadding.right + kTabLabelPadding.left;
|
|
tabRight = tabLeft + 140.0;
|
|
tabTop = (tabBarHeight - indicatorWeight - 40.0) / 2.0;
|
|
tabBottom = tabTop + 40.0;
|
|
tabRect = new Rect.fromLTRB(tabLeft, tabTop, tabRight, tabBottom);
|
|
expect(tester.getRect(find.byKey(tabs[1].key)), tabRect);
|
|
|
|
|
|
// Tab2 width = 150, height = 50
|
|
tabLeft = tabRight + kTabLabelPadding.right + kTabLabelPadding.left;
|
|
tabRight = tabLeft + 150.0;
|
|
tabTop = (tabBarHeight - indicatorWeight - 50.0) / 2.0;
|
|
tabBottom = tabTop + 50.0;
|
|
tabRect = new Rect.fromLTRB(tabLeft, tabTop, tabRight, tabBottom);
|
|
expect(tester.getRect(find.byKey(tabs[2].key)), tabRect);
|
|
|
|
// Tab 0 selected, indicator padding resolves to left: 100.0
|
|
const double indicatorLeft = 100.0 + indicatorWeight / 2.0;
|
|
final double indicatorRight = 130.0 + kTabLabelPadding.horizontal - indicatorWeight / 2.0;
|
|
final double indicatorY = tabBottom + indicatorWeight / 2.0;
|
|
expect(tabBarBox, paints..line(
|
|
strokeWidth: indicatorWeight,
|
|
p1: new Offset(indicatorLeft, indicatorY),
|
|
p2: new Offset(indicatorRight, indicatorY),
|
|
));
|
|
});
|
|
|
|
testWidgets('TabBar with directional indicatorPadding (RTL)', (WidgetTester tester) async {
|
|
final List<Widget> tabs = <Widget>[
|
|
new SizedBox(key: new UniqueKey(), width: 130.0, height: 30.0),
|
|
new SizedBox(key: new UniqueKey(), width: 140.0, height: 40.0),
|
|
new SizedBox(key: new UniqueKey(), width: 150.0, height: 50.0),
|
|
];
|
|
|
|
const double indicatorWeight = 2.0; // the default
|
|
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: tabs.length,
|
|
);
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
textDirection: TextDirection.rtl,
|
|
child: new Container(
|
|
alignment: Alignment.topLeft,
|
|
child: new TabBar(
|
|
indicatorPadding: const EdgeInsetsDirectional.only(start: 100.0),
|
|
isScrollable: true,
|
|
controller: controller,
|
|
tabs: tabs,
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
final RenderBox tabBarBox = tester.firstRenderObject<RenderBox>(find.byType(TabBar));
|
|
const double tabBarHeight = 50.0 + indicatorWeight; // 50 = max tab height
|
|
expect(tabBarBox.size.height, tabBarHeight);
|
|
|
|
// Tab2 width = 150, height = 50
|
|
double tabLeft = kTabLabelPadding.left;
|
|
double tabRight = tabLeft + 150.0;
|
|
double tabTop = (tabBarHeight - indicatorWeight - 50.0) / 2.0;
|
|
double tabBottom = tabTop + 50.0;
|
|
Rect tabRect = new Rect.fromLTRB(tabLeft, tabTop, tabRight, tabBottom);
|
|
expect(tester.getRect(find.byKey(tabs[2].key)), tabRect);
|
|
|
|
// Tab1 width = 140, height = 40
|
|
tabLeft = tabRight + kTabLabelPadding.right + kTabLabelPadding.left;
|
|
tabRight = tabLeft + 140.0;
|
|
tabTop = (tabBarHeight - indicatorWeight - 40.0) / 2.0;
|
|
tabBottom = tabTop + 40.0;
|
|
tabRect = new Rect.fromLTRB(tabLeft, tabTop, tabRight, tabBottom);
|
|
expect(tester.getRect(find.byKey(tabs[1].key)), tabRect);
|
|
|
|
// Tab0 width = 130, height = 30
|
|
tabLeft = tabRight + kTabLabelPadding.right + kTabLabelPadding.left;
|
|
tabRight = tabLeft + 130.0;
|
|
tabTop = (tabBarHeight - indicatorWeight - 30.0) / 2.0;
|
|
tabBottom = tabTop + 30.0;
|
|
tabRect = new Rect.fromLTRB(tabLeft, tabTop, tabRight, tabBottom);
|
|
expect(tester.getRect(find.byKey(tabs[0].key)), tabRect);
|
|
|
|
// Tab 0 selected, indicator padding resolves to right: 100.0
|
|
final double indicatorLeft = tabLeft - kTabLabelPadding.left + indicatorWeight / 2.0;
|
|
final double indicatorRight = tabRight + kTabLabelPadding.left - indicatorWeight / 2.0 - 100.0;
|
|
const double indicatorY = 50.0 + indicatorWeight / 2.0;
|
|
expect(tabBarBox, paints..line(
|
|
strokeWidth: indicatorWeight,
|
|
p1: new Offset(indicatorLeft, indicatorY),
|
|
p2: new Offset(indicatorRight, indicatorY),
|
|
));
|
|
});
|
|
|
|
testWidgets('Overflowing RTL tab bar', (WidgetTester tester) async {
|
|
final List<Widget> tabs = new List<Widget>.filled(100,
|
|
// For convenience padded width of each tab will equal 100:
|
|
// 76 + kTabLabelPadding.horizontal(24)
|
|
new SizedBox(key: new UniqueKey(), width: 76.0, height: 40.0),
|
|
);
|
|
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: tabs.length,
|
|
);
|
|
|
|
const double indicatorWeight = 2.0; // the default
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
textDirection: TextDirection.rtl,
|
|
child: new Container(
|
|
alignment: Alignment.topLeft,
|
|
child: new TabBar(
|
|
isScrollable: true,
|
|
controller: controller,
|
|
tabs: tabs,
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
final RenderBox tabBarBox = tester.firstRenderObject<RenderBox>(find.byType(TabBar));
|
|
const double tabBarHeight = 40.0 + indicatorWeight; // 40 = tab height
|
|
expect(tabBarBox.size.height, tabBarHeight);
|
|
|
|
// Tab 0 out of 100 selected
|
|
double indicatorLeft = 99.0 * 100.0 + indicatorWeight / 2.0;
|
|
double indicatorRight = 100.0 * 100.0 - indicatorWeight / 2.0;
|
|
const double indicatorY = 40.0 + indicatorWeight / 2.0;
|
|
expect(tabBarBox, paints..line(
|
|
strokeWidth: indicatorWeight,
|
|
p1: new Offset(indicatorLeft, indicatorY),
|
|
p2: new Offset(indicatorRight, indicatorY),
|
|
));
|
|
|
|
controller.animateTo(tabs.length - 1, duration: const Duration(seconds: 1), curve: Curves.linear);
|
|
await tester.pump();
|
|
await tester.pump(const Duration(milliseconds: 500));
|
|
|
|
// The x coordinates of p1 and p2 were derived empirically, not analytically.
|
|
expect(tabBarBox, paints..line(
|
|
strokeWidth: indicatorWeight,
|
|
p1: const Offset(2476.0, indicatorY),
|
|
p2: const Offset(2574.0, indicatorY),
|
|
));
|
|
|
|
await tester.pump(const Duration(milliseconds: 501));
|
|
|
|
// Tab 99 out of 100 selected, appears on the far left because RTL
|
|
indicatorLeft = indicatorWeight / 2.0;
|
|
indicatorRight = 100.0 - indicatorWeight / 2.0;
|
|
expect(tabBarBox, paints..line(
|
|
strokeWidth: indicatorWeight,
|
|
p1: new Offset(indicatorLeft, indicatorY),
|
|
p2: new Offset(indicatorRight, indicatorY),
|
|
));
|
|
});
|
|
|
|
testWidgets('correct semantics', (WidgetTester tester) async {
|
|
final SemanticsTester semantics = new SemanticsTester(tester);
|
|
|
|
final List<Tab> tabs = new List<Tab>.generate(2, (int index) {
|
|
return new Tab(text: 'TAB #$index');
|
|
});
|
|
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: tabs.length,
|
|
initialIndex: 0,
|
|
);
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
child: new Semantics(
|
|
container: true,
|
|
child: new TabBar(
|
|
isScrollable: true,
|
|
controller: controller,
|
|
tabs: tabs,
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
final TestSemantics expectedSemantics = new TestSemantics.root(
|
|
children: <TestSemantics>[
|
|
new TestSemantics.rootChild(
|
|
id: 1,
|
|
rect: TestSemantics.fullScreen,
|
|
children: <TestSemantics>[
|
|
new TestSemantics(
|
|
id: 2,
|
|
rect: TestSemantics.fullScreen,
|
|
children: <TestSemantics>[
|
|
new TestSemantics(
|
|
id: 3,
|
|
rect: TestSemantics.fullScreen,
|
|
children: <TestSemantics>[
|
|
new TestSemantics(
|
|
id: 4,
|
|
actions: SemanticsAction.tap.index,
|
|
flags: SemanticsFlag.isSelected.index,
|
|
label: 'TAB #0\nTab 1 of 2',
|
|
rect: new Rect.fromLTRB(0.0, 0.0, 108.0, kTextTabBarHeight),
|
|
transform: new Matrix4.translationValues(0.0, 276.0, 0.0),
|
|
),
|
|
new TestSemantics(
|
|
id: 5,
|
|
actions: SemanticsAction.tap.index,
|
|
label: 'TAB #1\nTab 2 of 2',
|
|
rect: new Rect.fromLTRB(0.0, 0.0, 108.0, kTextTabBarHeight),
|
|
transform: new Matrix4.translationValues(108.0, 276.0, 0.0),
|
|
),
|
|
]
|
|
)
|
|
],
|
|
),
|
|
],
|
|
),
|
|
],
|
|
);
|
|
|
|
expect(semantics, hasSemantics(expectedSemantics));
|
|
|
|
semantics.dispose();
|
|
});
|
|
|
|
testWidgets('correct scrolling semantics', (WidgetTester tester) async {
|
|
final SemanticsTester semantics = new SemanticsTester(tester);
|
|
|
|
final List<Tab> tabs = new List<Tab>.generate(20, (int index) {
|
|
return new Tab(text: 'This is a very wide tab #$index');
|
|
});
|
|
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: tabs.length,
|
|
initialIndex: 0,
|
|
);
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
child: new Semantics(
|
|
container: true,
|
|
child: new TabBar(
|
|
isScrollable: true,
|
|
controller: controller,
|
|
tabs: tabs,
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
const String tab0title = 'This is a very wide tab #0\nTab 1 of 20';
|
|
const String tab10title = 'This is a very wide tab #10\nTab 11 of 20';
|
|
|
|
expect(semantics, includesNodeWith(actions: <SemanticsAction>[SemanticsAction.scrollLeft]));
|
|
expect(semantics, includesNodeWith(label: tab0title));
|
|
expect(semantics, isNot(includesNodeWith(label: tab10title)));
|
|
|
|
controller.index = 10;
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(semantics, isNot(includesNodeWith(label: tab0title)));
|
|
expect(semantics, includesNodeWith(actions: <SemanticsAction>[SemanticsAction.scrollLeft, SemanticsAction.scrollRight]));
|
|
expect(semantics, includesNodeWith(label: tab10title));
|
|
|
|
controller.index = 19;
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(semantics, includesNodeWith(actions: <SemanticsAction>[SemanticsAction.scrollRight]));
|
|
|
|
controller.index = 0;
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(semantics, includesNodeWith(actions: <SemanticsAction>[SemanticsAction.scrollLeft]));
|
|
expect(semantics, includesNodeWith(label: tab0title));
|
|
expect(semantics, isNot(includesNodeWith(label: tab10title)));
|
|
|
|
semantics.dispose();
|
|
});
|
|
|
|
testWidgets('TabBar etc with zero tabs', (WidgetTester tester) async {
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: 0,
|
|
);
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
child: new Column(
|
|
children: <Widget>[
|
|
new TabBar(
|
|
controller: controller,
|
|
tabs: const <Widget>[],
|
|
),
|
|
new Flexible(
|
|
child: new TabBarView(
|
|
controller: controller,
|
|
children: const <Widget>[],
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(controller.index, 0);
|
|
expect(tester.getSize(find.byType(TabBar)), const Size(800.0, 48.0));
|
|
expect(tester.getSize(find.byType(TabBarView)), const Size(800.0, 600.0 - 48.0));
|
|
|
|
// A fling in the TabBar or TabBarView, shouldn't do anything.
|
|
|
|
await tester.fling(find.byType(TabBar), const Offset(-100.0, 0.0), 5000.0);
|
|
await tester.pumpAndSettle();
|
|
|
|
await tester.fling(find.byType(TabBarView), const Offset(100.0, 0.0), 5000.0);
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(controller.index, 0);
|
|
});
|
|
|
|
testWidgets('TabBar etc with one tab', (WidgetTester tester) async {
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: 1,
|
|
);
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
child: new Column(
|
|
children: <Widget>[
|
|
new TabBar(
|
|
controller: controller,
|
|
tabs: const <Widget>[const Tab(text: 'TAB')],
|
|
),
|
|
new Flexible(
|
|
child: new TabBarView(
|
|
controller: controller,
|
|
children: const <Widget>[const Text('PAGE')],
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(controller.index, 0);
|
|
expect(find.text('TAB'), findsOneWidget);
|
|
expect(find.text('PAGE'), findsOneWidget);
|
|
expect(tester.getSize(find.byType(TabBar)), const Size(800.0, 48.0));
|
|
expect(tester.getSize(find.byType(TabBarView)), const Size(800.0, 600.0 - 48.0));
|
|
|
|
// The one tab should be center vis the app's width (800).
|
|
final double tabLeft = tester.getTopLeft(find.widgetWithText(Tab, 'TAB')).dx;
|
|
final double tabRight = tester.getTopRight(find.widgetWithText(Tab, 'TAB')).dx;
|
|
expect(tabLeft + (tabRight - tabLeft) / 2.0, 400.0);
|
|
|
|
// A fling in the TabBar or TabBarView, shouldn't move the tab.
|
|
|
|
await tester.fling(find.byType(TabBar), const Offset(-100.0, 0.0), 5000.0);
|
|
await tester.pump(const Duration(milliseconds: 50));
|
|
expect(tester.getTopLeft(find.widgetWithText(Tab, 'TAB')).dx, tabLeft);
|
|
expect(tester.getTopRight(find.widgetWithText(Tab, 'TAB')).dx, tabRight);
|
|
await tester.pumpAndSettle();
|
|
|
|
await tester.fling(find.byType(TabBarView), const Offset(100.0, 0.0), 5000.0);
|
|
await tester.pump(const Duration(milliseconds: 50));
|
|
expect(tester.getTopLeft(find.widgetWithText(Tab, 'TAB')).dx, tabLeft);
|
|
expect(tester.getTopRight(find.widgetWithText(Tab, 'TAB')).dx, tabRight);
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(controller.index, 0);
|
|
expect(find.text('TAB'), findsOneWidget);
|
|
expect(find.text('PAGE'), findsOneWidget);
|
|
});
|
|
|
|
testWidgets('can tap on indicator at very bottom of TabBar to switch tabs', (WidgetTester tester) async {
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: 2,
|
|
initialIndex: 0,
|
|
);
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
child: new Column(
|
|
children: <Widget>[
|
|
new TabBar(
|
|
controller: controller,
|
|
indicatorWeight: 30.0,
|
|
tabs: const <Widget>[const Tab(text: 'TAB1'), const Tab(text: 'TAB2')],
|
|
),
|
|
new Flexible(
|
|
child: new TabBarView(
|
|
controller: controller,
|
|
children: const <Widget>[const Text('PAGE1'), const Text('PAGE2')],
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
|
|
expect(controller.index, 0);
|
|
|
|
final Offset bottomRight = tester.getBottomRight(find.byType(TabBar)) - const Offset(1.0, 1.0);
|
|
final TestGesture gesture = await tester.startGesture(bottomRight);
|
|
await gesture.up();
|
|
await tester.pumpAndSettle();
|
|
|
|
expect(controller.index, 1);
|
|
});
|
|
|
|
testWidgets('can override semantics of tabs', (WidgetTester tester) async {
|
|
final SemanticsTester semantics = new SemanticsTester(tester);
|
|
|
|
final List<Tab> tabs = new List<Tab>.generate(2, (int index) {
|
|
return new Tab(
|
|
child: new Semantics(
|
|
label: 'Semantics override $index',
|
|
child: new ExcludeSemantics(
|
|
child: new Text('TAB #$index'),
|
|
),
|
|
),
|
|
);
|
|
});
|
|
|
|
final TabController controller = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: tabs.length,
|
|
initialIndex: 0,
|
|
);
|
|
|
|
await tester.pumpWidget(
|
|
boilerplate(
|
|
child: new Semantics(
|
|
container: true,
|
|
child: new TabBar(
|
|
isScrollable: true,
|
|
controller: controller,
|
|
tabs: tabs,
|
|
),
|
|
),
|
|
),
|
|
);
|
|
|
|
final TestSemantics expectedSemantics = new TestSemantics.root(
|
|
children: <TestSemantics>[
|
|
new TestSemantics.rootChild(
|
|
id: 1,
|
|
rect: TestSemantics.fullScreen,
|
|
children: <TestSemantics>[
|
|
new TestSemantics(
|
|
id: 2,
|
|
rect: TestSemantics.fullScreen,
|
|
children: <TestSemantics>[
|
|
new TestSemantics(
|
|
id: 3,
|
|
rect: TestSemantics.fullScreen,
|
|
children: <TestSemantics>[
|
|
new TestSemantics(
|
|
id: 4,
|
|
actions: SemanticsAction.tap.index,
|
|
flags: SemanticsFlag.isSelected.index,
|
|
label: 'Semantics override 0\nTab 1 of 2',
|
|
rect: new Rect.fromLTRB(0.0, 0.0, 108.0, kTextTabBarHeight),
|
|
transform: new Matrix4.translationValues(0.0, 276.0, 0.0),
|
|
),
|
|
new TestSemantics(
|
|
id: 5,
|
|
actions: SemanticsAction.tap.index,
|
|
label: 'Semantics override 1\nTab 2 of 2',
|
|
rect: new Rect.fromLTRB(0.0, 0.0, 108.0, kTextTabBarHeight),
|
|
transform: new Matrix4.translationValues(108.0, 276.0, 0.0),
|
|
),
|
|
]
|
|
)
|
|
],
|
|
),
|
|
],
|
|
),
|
|
],
|
|
);
|
|
|
|
expect(semantics, hasSemantics(expectedSemantics));
|
|
|
|
semantics.dispose();
|
|
});
|
|
|
|
test('illegal constructor combinations', () {
|
|
expect(() => new Tab(icon: nonconst(null)), throwsAssertionError);
|
|
expect(() => new Tab(icon: new Container(), text: 'foo', child: new Container()), throwsAssertionError);
|
|
expect(() => new Tab(text: 'foo', child: new Container()), throwsAssertionError);
|
|
});
|
|
|
|
|
|
testWidgets('TabController changes', (WidgetTester tester) async {
|
|
// This is a regression test for https://github.com/flutter/flutter/issues/14812
|
|
|
|
Widget buildFrame(TabController controller) {
|
|
return boilerplate(
|
|
child: new Container(
|
|
alignment: Alignment.topLeft,
|
|
child: new TabBar(
|
|
controller: controller,
|
|
tabs: const <Tab>[
|
|
const Tab(text: 'LEFT'),
|
|
const Tab(text: 'RIGHT'),
|
|
],
|
|
),
|
|
),
|
|
);
|
|
}
|
|
|
|
final TabController controller1 = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: 2,
|
|
initialIndex: 0,
|
|
);
|
|
|
|
final TabController controller2 = new TabController(
|
|
vsync: const TestVSync(),
|
|
length: 2,
|
|
initialIndex: 0,
|
|
);
|
|
|
|
await tester.pumpWidget(buildFrame(controller1));
|
|
await tester.pumpWidget(buildFrame(controller2));
|
|
expect(controller1.index, 0);
|
|
expect(controller2.index, 0);
|
|
|
|
const double indicatorWeight = 2.0;
|
|
final RenderBox tabBarBox = tester.firstRenderObject<RenderBox>(find.byType(TabBar));
|
|
expect(tabBarBox.size.height, 48.0); // 48 = _kTabHeight(46) + indicatorWeight(2.0)
|
|
|
|
const double indicatorY = 48.0 - indicatorWeight / 2.0;
|
|
double indicatorLeft = indicatorWeight / 2.0;
|
|
double indicatorRight = 400.0 - indicatorWeight / 2.0; // 400 = screen_width / 2
|
|
expect(tabBarBox, paints..line(
|
|
strokeWidth: indicatorWeight,
|
|
p1: new Offset(indicatorLeft, indicatorY),
|
|
p2: new Offset(indicatorRight, indicatorY),
|
|
));
|
|
|
|
await tester.tap(find.text('RIGHT'));
|
|
await tester.pumpAndSettle();
|
|
expect(controller1.index, 0);
|
|
expect(controller2.index, 1);
|
|
|
|
// Verify that the TabBar's _IndicatorPainter is now listening to
|
|
// tabController2.
|
|
|
|
indicatorLeft = 400.0 + indicatorWeight / 2.0;
|
|
indicatorRight = 800.0 - indicatorWeight / 2.0;
|
|
expect(tabBarBox, paints..line(
|
|
strokeWidth: indicatorWeight,
|
|
p1: new Offset(indicatorLeft, indicatorY),
|
|
p2: new Offset(indicatorRight, indicatorY),
|
|
));
|
|
});
|
|
|
|
testWidgets('Default tab indicator color is white', (WidgetTester tester) async {
|
|
// Regression test for https://github.com/flutter/flutter/issues/15958
|
|
final List<String> tabs = <String>['LEFT', 'RIGHT'];
|
|
await tester.pumpWidget(buildLeftRightApp(tabs: tabs, value: 'LEFT'));
|
|
final RenderBox tabBarBox = tester.firstRenderObject<RenderBox>(find.byType(TabBar));
|
|
expect(tabBarBox, paints..line(
|
|
color: Colors.white,
|
|
));
|
|
|
|
});
|
|
|
|
}
|