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90d83e37a6
Registering the service worker immediately after the documented has loaded may cause SW initialization to compete with framework initialization. It was recommended to us that we defer the service worker setup until after the framework is done with setup, which should be sometime after the first frame. To implement this, I augmented the binding setup to dispatch an event on the document after the binding has initialized. I don't see any obvious risks with this setup. Fixes #66066
108 lines
3.2 KiB
Dart
108 lines
3.2 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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// @dart = 2.8
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import 'dart:ui' as ui;
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter/gestures.dart';
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import 'package:flutter/scheduler.dart';
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import 'package:flutter/services.dart';
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import 'package:vector_math/vector_math_64.dart' show Matrix4;
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class _TestHitTester extends RenderBox {
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_TestHitTester(this.hitTestOverride);
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final BoxHitTest hitTestOverride;
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@override
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bool hitTest(BoxHitTestResult result, {ui.Offset position}) {
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return hitTestOverride(result, position);
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}
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}
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// A binding used to test MouseTracker, allowing the test to override hit test
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// searching.
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class TestMouseTrackerFlutterBinding extends BindingBase
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with SchedulerBinding, ServicesBinding, GestureBinding, SemanticsBinding, RendererBinding {
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@override
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void initInstances() {
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super.initInstances();
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postFrameCallbacks = <void Function(Duration)>[];
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}
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void setHitTest(BoxHitTest hitTest) {
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renderView.child = _TestHitTester(hitTest);
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}
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SchedulerPhase _overridePhase;
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@override
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SchedulerPhase get schedulerPhase => _overridePhase ?? super.schedulerPhase;
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// Manually schedule a post-frame check.
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//
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// In real apps this is done by the renderer binding, but in tests we have to
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// bypass the phase assertion of [MouseTracker.schedulePostFrameCheck].
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void scheduleMouseTrackerPostFrameCheck() {
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final SchedulerPhase lastPhase = _overridePhase;
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_overridePhase = SchedulerPhase.persistentCallbacks;
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addPostFrameCallback((_) {
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mouseTracker.updateAllDevices(renderView.hitTestMouseTrackers);
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});
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_overridePhase = lastPhase;
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}
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List<void Function(Duration)> postFrameCallbacks = <void Function(Duration)>[];
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// Proxy post-frame callbacks.
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@override
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void addPostFrameCallback(void Function(Duration) callback) {
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postFrameCallbacks.add(callback);
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}
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void flushPostFrameCallbacks(Duration duration) {
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for (final void Function(Duration) callback in postFrameCallbacks) {
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callback(duration);
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}
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postFrameCallbacks.clear();
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}
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}
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// An object that mocks the behavior of a render object with [MouseTrackerAnnotation].
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class TestAnnotationTarget with Diagnosticable implements MouseTrackerAnnotation, HitTestTarget {
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const TestAnnotationTarget({this.onEnter, this.onHover, this.onExit, this.cursor = MouseCursor.defer});
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@override
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final PointerEnterEventListener onEnter;
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@override
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final PointerHoverEventListener onHover;
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@override
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final PointerExitEventListener onExit;
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@override
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final MouseCursor cursor;
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@override
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void handleEvent(PointerEvent event, HitTestEntry entry) {
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if (event is PointerHoverEvent)
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if (onHover != null)
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onHover(event);
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}
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}
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// A hit test entry that can be assigned with a [TestAnnotationTarget] and an
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// optional transform matrix.
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class TestAnnotationEntry extends HitTestEntry {
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TestAnnotationEntry(TestAnnotationTarget target, [Matrix4 transform])
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: transform = transform ?? Matrix4.identity(), super(target);
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@override
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final Matrix4 transform;
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}
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