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// 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 'dart:async';
import 'dart:ui' as ui;
import 'package:fake_async/fake_async.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/gestures.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
import '../services/fake_platform_views.dart';
import 'rendering_tester.dart';
void main() {
final TestRenderingFlutterBinding binding = TestRenderingFlutterBinding.ensureInitialized();
group('PlatformViewRenderBox', () {
late FakePlatformViewController fakePlatformViewController;
late PlatformViewRenderBox platformViewRenderBox;
setUp(() {
fakePlatformViewController = FakePlatformViewController(0);
platformViewRenderBox = PlatformViewRenderBox(
controller: fakePlatformViewController,
hitTestBehavior: PlatformViewHitTestBehavior.opaque,
gestureRecognizers: <Factory<OneSequenceGestureRecognizer>>{
Factory<VerticalDragGestureRecognizer>(
() {
return VerticalDragGestureRecognizer();
},
),
},
);
});
test('layout should size to max constraint', () {
layout(platformViewRenderBox);
platformViewRenderBox.layout(const BoxConstraints(minWidth: 50, minHeight: 50, maxWidth: 100, maxHeight: 100));
expect(platformViewRenderBox.size, const Size(100, 100));
});
test('send semantics update if id is changed', () {
final RenderConstrainedBox tree = RenderConstrainedBox(
additionalConstraints: const BoxConstraints.tightFor(height: 20.0, width: 20.0),
child: platformViewRenderBox,
);
int semanticsUpdateCount = 0;
final SemanticsHandle semanticsHandle = TestRenderingFlutterBinding.instance.pipelineOwner.ensureSemantics(
listener: () {
++semanticsUpdateCount;
},
);
layout(tree, phase: EnginePhase.flushSemantics);
// Initial semantics update
expect(semanticsUpdateCount, 1);
semanticsUpdateCount = 0;
// Request semantics update even though nothing changed.
platformViewRenderBox.markNeedsSemanticsUpdate();
pumpFrame(phase: EnginePhase.flushSemantics);
expect(semanticsUpdateCount, 0);
semanticsUpdateCount = 0;
final FakePlatformViewController updatedFakePlatformViewController = FakePlatformViewController(10);
platformViewRenderBox.controller = updatedFakePlatformViewController;
pumpFrame(phase: EnginePhase.flushSemantics);
// Update id should update the semantics.
expect(semanticsUpdateCount, 1);
semanticsHandle.dispose();
});
test('mouse hover events are dispatched via PlatformViewController.dispatchPointerEvent', () {
layout(platformViewRenderBox);
pumpFrame(phase: EnginePhase.flushSemantics);
RendererBinding.instance.platformDispatcher.onPointerDataPacket!(ui.PointerDataPacket(data: <ui.PointerData>[
_pointerData(ui.PointerChange.add, Offset.zero),
_pointerData(ui.PointerChange.hover, const Offset(10, 10)),
_pointerData(ui.PointerChange.remove, const Offset(10, 10)),
]));
expect(fakePlatformViewController.dispatchedPointerEvents, isNotEmpty);
});
test('touch hover events are dispatched via PlatformViewController.dispatchPointerEvent', () {
layout(platformViewRenderBox);
pumpFrame(phase: EnginePhase.flushSemantics);
RendererBinding.instance.platformDispatcher.onPointerDataPacket!(ui.PointerDataPacket(data: <ui.PointerData>[
_pointerData(ui.PointerChange.add, Offset.zero),
_pointerData(ui.PointerChange.hover, const Offset(10, 10)),
_pointerData(ui.PointerChange.remove, const Offset(10, 10)),
]));
expect(fakePlatformViewController.dispatchedPointerEvents, isNotEmpty);
});
});
// Regression test for https://github.com/flutter/flutter/issues/69431
test('multi-finger touch test', () {
final FakeAndroidPlatformViewsController viewsController = FakeAndroidPlatformViewsController();
viewsController.registerViewType('webview');
final AndroidViewController viewController =
PlatformViewsService.initAndroidView(id: 0, viewType: 'webview', layoutDirection: TextDirection.rtl);
final PlatformViewRenderBox platformViewRenderBox = PlatformViewRenderBox(
controller: viewController,
hitTestBehavior: PlatformViewHitTestBehavior.opaque,
gestureRecognizers: <Factory<OneSequenceGestureRecognizer>>{
Factory<VerticalDragGestureRecognizer>(
() => VerticalDragGestureRecognizer(),
),
},
);
layout(platformViewRenderBox);
pumpFrame(phase: EnginePhase.flushSemantics);
viewController.pointTransformer = (Offset offset) => platformViewRenderBox.globalToLocal(offset);
FakeAsync().run((FakeAsync async) {
// Put one pointer down.
RendererBinding.instance.platformDispatcher.onPointerDataPacket!(ui.PointerDataPacket(data: <ui.PointerData>[
_pointerData(ui.PointerChange.add, Offset.zero, pointer: 1, kind: PointerDeviceKind.touch),
_pointerData(ui.PointerChange.down, const Offset(10, 10), pointer: 1, kind: PointerDeviceKind.touch),
_pointerData(ui.PointerChange.remove, const Offset(10, 10), pointer: 1, kind: PointerDeviceKind.touch),
]));
async.flushMicrotasks();
// Put another pointer down and then cancel it.
RendererBinding.instance.platformDispatcher.onPointerDataPacket!(ui.PointerDataPacket(data: <ui.PointerData>[
_pointerData(ui.PointerChange.add, Offset.zero, pointer: 2, kind: PointerDeviceKind.touch),
_pointerData(ui.PointerChange.down, const Offset(20, 10), pointer: 2, kind: PointerDeviceKind.touch),
_pointerData(ui.PointerChange.cancel, const Offset(20, 10), pointer: 2, kind: PointerDeviceKind.touch),
]));
async.flushMicrotasks();
// The first pointer can still moving without crashing.
RendererBinding.instance.platformDispatcher.onPointerDataPacket!(ui.PointerDataPacket(data: <ui.PointerData>[
_pointerData(ui.PointerChange.add, Offset.zero, pointer: 1, kind: PointerDeviceKind.touch),
_pointerData(ui.PointerChange.move, const Offset(10, 10), pointer: 1, kind: PointerDeviceKind.touch),
_pointerData(ui.PointerChange.remove, const Offset(10, 10), pointer: 1, kind: PointerDeviceKind.touch),
]));
async.flushMicrotasks();
});
// Passes if no crashes.
});
test('created callback is reset when controller is changed', () {
final FakeAndroidPlatformViewsController viewsController = FakeAndroidPlatformViewsController();
viewsController.registerViewType('webview');
final AndroidViewController firstController = PlatformViewsService.initAndroidView(
id: 0,
viewType: 'webview',
layoutDirection: TextDirection.rtl,
);
final RenderAndroidView renderBox = RenderAndroidView(
viewController: firstController,
hitTestBehavior: PlatformViewHitTestBehavior.opaque,
gestureRecognizers: <Factory<OneSequenceGestureRecognizer>>{},
);
layout(renderBox);
pumpFrame(phase: EnginePhase.flushSemantics);
expect(firstController.createdCallbacks, isNotEmpty);
expect(firstController.createdCallbacks.length, 1);
final AndroidViewController secondController = PlatformViewsService.initAndroidView(
id: 0,
viewType: 'webview',
layoutDirection: TextDirection.rtl,
);
// Reset controller.
renderBox.controller = secondController;
expect(firstController.createdCallbacks, isEmpty);
expect(secondController.createdCallbacks, isNotEmpty);
expect(secondController.createdCallbacks.length, 1);
});
test('render object changed its visual appearance after texture is created', () {
FakeAsync().run((FakeAsync async) {
final AndroidViewController viewController =
PlatformViewsService.initAndroidView(id: 0, viewType: 'webview', layoutDirection: TextDirection.rtl);
final RenderAndroidView renderBox = RenderAndroidView(
viewController: viewController,
hitTestBehavior: PlatformViewHitTestBehavior.opaque,
gestureRecognizers: <Factory<OneSequenceGestureRecognizer>>{},
);
final Completer<void> viewCreation = Completer<void>();
const MethodChannel channel = MethodChannel('flutter/platform_views');
binding.defaultBinaryMessenger.setMockMethodCallHandler(channel, (MethodCall methodCall) async {
assert(methodCall.method == 'create', 'Unexpected method call');
await viewCreation.future;
return /*textureId=*/ 0;
});
layout(renderBox);
pumpFrame(phase: EnginePhase.paint);
expect(renderBox.debugLayer, isNotNull);
expect(renderBox.debugLayer!.hasChildren, isFalse);
expect(viewController.isCreated, isFalse);
expect(renderBox.debugNeedsPaint, isFalse);
viewCreation.complete();
async.flushMicrotasks();
expect(viewController.isCreated, isTrue);
expect(renderBox.debugNeedsPaint, isTrue);
expect(renderBox.debugLayer!.hasChildren, isFalse);
pumpFrame(phase: EnginePhase.paint);
expect(renderBox.debugLayer!.hasChildren, isTrue);
expect(renderBox.debugLayer!.firstChild, isA<TextureLayer>());
});
});
}
ui.PointerData _pointerData(
ui.PointerChange change,
Offset logicalPosition, {
int device = 0,
PointerDeviceKind kind = PointerDeviceKind.mouse,
int pointer = 0,
}) {
return ui.PointerData(
pointerIdentifier: pointer,
embedderId: pointer,
change: change,
physicalX: logicalPosition.dx * RendererBinding.instance.window.devicePixelRatio,
physicalY: logicalPosition.dy * RendererBinding.instance.window.devicePixelRatio,
kind: kind,
device: device,
);
}