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86f9ab511e
This reverts usages of the binding's platformDispatcher to use window again temporarily, because there isn't a TestPlatformDispatcher yet, and so some tests were failing because they mocked the TestWindow to return certain things (locales) that were returning the real values instead of the test values. Once I've created a TestPlatformDispatcher to allow fake data to be passed to it, we can go back to using the platformDispatcher in all of these places
70 lines
2.3 KiB
Dart
70 lines
2.3 KiB
Dart
// Copyright 2014 The Flutter 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 'dart:ui' as ui show AccessibilityFeatures, SemanticsUpdateBuilder;
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import 'package:flutter/foundation.dart';
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import 'debug.dart';
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export 'dart:ui' show AccessibilityFeatures;
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/// The glue between the semantics layer and the Flutter engine.
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// TODO(jonahwilliams): move the remaining semantic related bindings here.
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mixin SemanticsBinding on BindingBase {
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/// The current [SemanticsBinding], if one has been created.
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static SemanticsBinding? get instance => _instance;
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static SemanticsBinding? _instance;
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@override
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void initInstances() {
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super.initInstances();
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_instance = this;
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_accessibilityFeatures = window.accessibilityFeatures;
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}
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/// Called when the platform accessibility features change.
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///
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/// See [dart:ui.PlatformDispatcher.onAccessibilityFeaturesChanged].
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@protected
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void handleAccessibilityFeaturesChanged() {
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_accessibilityFeatures = window.accessibilityFeatures;
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}
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/// Creates an empty semantics update builder.
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///
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/// The caller is responsible for filling out the semantics node updates.
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///
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/// This method is used by the [SemanticsOwner] to create builder for all its
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/// semantics updates.
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ui.SemanticsUpdateBuilder createSemanticsUpdateBuilder() {
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return ui.SemanticsUpdateBuilder();
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}
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/// The currently active set of [AccessibilityFeatures].
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///
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/// This is initialized the first time [runApp] is called and updated whenever
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/// a flag is changed.
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///
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/// To listen to changes to accessibility features, create a
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/// [WidgetsBindingObserver] and listen to
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/// [WidgetsBindingObserver.didChangeAccessibilityFeatures].
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ui.AccessibilityFeatures get accessibilityFeatures => _accessibilityFeatures;
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late ui.AccessibilityFeatures _accessibilityFeatures;
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/// The platform is requesting that animations be disabled or simplified.
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///
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/// This setting can be overridden for testing or debugging by setting
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/// [debugSemanticsDisableAnimations].
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bool get disableAnimations {
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bool value = _accessibilityFeatures.disableAnimations;
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assert(() {
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if (debugSemanticsDisableAnimations != null)
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value = debugSemanticsDisableAnimations!;
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return true;
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}());
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return value;
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}
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}
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