mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
a04fb324be
Bumps the Dart version to 3.8 across the repo (excluding engine/src/flutter/third_party) and applies formatting updates from Dart 3.8. ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [ ] I listed at least one issue that this PR fixes in the description above. - [ ] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. <!-- Links --> [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md
72 lines
2.5 KiB
Dart
72 lines
2.5 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
import 'package:flutter/rendering.dart';
|
|
import 'package:flutter_test/flutter_test.dart';
|
|
|
|
import 'rendering_tester.dart';
|
|
|
|
void main() {
|
|
TestRenderingFlutterBinding.ensureInitialized();
|
|
|
|
test('only send semantics update if semantics have changed', () {
|
|
final TestRender testRender = TestRender()
|
|
..properties = const SemanticsProperties(label: 'hello')
|
|
..textDirection = TextDirection.ltr;
|
|
|
|
final RenderConstrainedBox tree = RenderConstrainedBox(
|
|
additionalConstraints: const BoxConstraints.tightFor(height: 20.0, width: 20.0),
|
|
child: testRender,
|
|
);
|
|
int semanticsUpdateCount = 0;
|
|
final SemanticsHandle semanticsHandle = TestRenderingFlutterBinding.instance.ensureSemantics();
|
|
TestRenderingFlutterBinding.instance.pipelineOwner.semanticsOwner!.addListener(() {
|
|
++semanticsUpdateCount;
|
|
});
|
|
|
|
layout(tree, phase: EnginePhase.flushSemantics);
|
|
|
|
// Initial render does semantics.
|
|
expect(semanticsUpdateCount, 1);
|
|
expect(testRender.describeSemanticsConfigurationCallCount, isPositive);
|
|
|
|
testRender.describeSemanticsConfigurationCallCount = 0;
|
|
semanticsUpdateCount = 0;
|
|
|
|
// Request semantics update even though nothing changed.
|
|
testRender.markNeedsSemanticsUpdate();
|
|
pumpFrame(phase: EnginePhase.flushSemantics);
|
|
|
|
// Object is asked for semantics, but no update is sent.
|
|
expect(semanticsUpdateCount, 0);
|
|
expect(testRender.describeSemanticsConfigurationCallCount, isPositive);
|
|
|
|
testRender.describeSemanticsConfigurationCallCount = 0;
|
|
semanticsUpdateCount = 0;
|
|
|
|
// Change semantics and request update.
|
|
testRender.properties = const SemanticsProperties(label: 'bye');
|
|
testRender.markNeedsSemanticsUpdate();
|
|
pumpFrame(phase: EnginePhase.flushSemantics);
|
|
|
|
// Object is asked for semantics, and update is sent.
|
|
expect(semanticsUpdateCount, 1);
|
|
expect(testRender.describeSemanticsConfigurationCallCount, isPositive);
|
|
|
|
semanticsHandle.dispose();
|
|
});
|
|
}
|
|
|
|
class TestRender extends RenderSemanticsAnnotations {
|
|
TestRender() : super(properties: const SemanticsProperties());
|
|
|
|
int describeSemanticsConfigurationCallCount = 0;
|
|
|
|
@override
|
|
void describeSemanticsConfiguration(SemanticsConfiguration config) {
|
|
super.describeSemanticsConfiguration(config);
|
|
describeSemanticsConfigurationCallCount += 1;
|
|
}
|
|
}
|