a8a32a972a
MixedViewport didn't use the building:true flag when locking itself, so when it caused a rebuild of its children, we assumed that nobody was allowed to mark things dirty below the list, and things crashed when Inherited people did in fact rebuild. Also: - default offset for MixedViewport - don't bother rebuilding if the underlying RenderObject is going to rebuild anyway for some reason - better docs for the "items must have keys" assert - keep the FlipComponent stuff together in test_widgets.dart
59 lines
1.4 KiB
Dart
59 lines
1.4 KiB
Dart
import 'package:flutter/widgets.dart';
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import 'package:test/test.dart';
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import 'widget_tester.dart';
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final BoxDecoration kBoxDecorationA = new BoxDecoration(
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backgroundColor: const Color(0xFFFF0000)
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);
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final BoxDecoration kBoxDecorationB = new BoxDecoration(
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backgroundColor: const Color(0xFF00FF00)
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);
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final BoxDecoration kBoxDecorationC = new BoxDecoration(
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backgroundColor: const Color(0xFF0000FF)
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);
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class TestBuildCounter extends StatelessComponent {
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static int buildCount = 0;
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Widget build(BuildContext context) {
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++buildCount;
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return new DecoratedBox(decoration: kBoxDecorationA);
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}
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}
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class FlipComponent extends StatefulComponent {
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FlipComponent({ Key key, this.left, this.right }) : super(key: key);
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final Widget left;
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final Widget right;
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FlipComponentState createState() => new FlipComponentState();
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}
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class FlipComponentState extends State<FlipComponent> {
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bool _showLeft = true;
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void flip() {
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setState(() {
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_showLeft = !_showLeft;
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});
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}
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Widget build(BuildContext context) {
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return _showLeft ? config.left : config.right;
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}
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}
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void flipStatefulComponent(WidgetTester tester) {
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StatefulComponentElement stateElement =
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tester.findElement((Element element) => element is StatefulComponentElement);
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expect(stateElement, isNotNull);
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expect(stateElement.state is FlipComponentState, isTrue);
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FlipComponentState state = stateElement.state;
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state.flip();
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}
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