forked from firka/flutter
Implement clipPath Mutator for hcpp (#164525)
Implements `clipPath` mutator for hcpp. Fixes https://github.com/flutter/flutter/issues/164219 https://github.com/user-attachments/assets/2c98e621-c73e-40ca-bc76-77de1a3826a0 ## 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]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] 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 --------- Co-authored-by: Gray Mackall <mackall@google.com>
This commit is contained in:
Gray Mackall
@@ -0,0 +1,174 @@
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// 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:convert';
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import 'package:android_driver_extensions/extension.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/gestures.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/rendering.dart';
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import 'package:flutter/services.dart';
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import 'package:flutter_driver/driver_extension.dart';
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import '../src/allow_list_devices.dart';
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void main() async {
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ensureAndroidDevice();
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enableFlutterDriverExtension(
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handler: (String? command) async {
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return json.encode(<String, Object?>{
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'supported': await HybridAndroidViewController.checkIfSupported(),
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});
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},
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commands: <CommandExtension>[nativeDriverCommands],
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);
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// Run on full screen.
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await SystemChrome.setEnabledSystemUIMode(SystemUiMode.immersive);
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runApp(const _ComplicatedClipPathWrappedMainApp());
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}
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final class _ComplicatedClipPathWrappedMainApp extends StatefulWidget {
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const _ComplicatedClipPathWrappedMainApp();
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@override
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State<_ComplicatedClipPathWrappedMainApp> createState() {
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return _ComplicatedClipPathWrappedMainAppState();
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}
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}
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class _ComplicatedClipPathWrappedMainAppState extends State<_ComplicatedClipPathWrappedMainApp> {
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final CustomClipper<Path> _triangleClipper = TriangleClipper();
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CustomClipper<Path>? _triangleOrEmpty = TriangleClipper();
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void _toggleTriangleClipper() {
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setState(() {
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if (_triangleOrEmpty == null) {
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_triangleOrEmpty = _triangleClipper;
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} else {
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_triangleOrEmpty = null;
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}
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});
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}
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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home: ClipPath(
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clipper: _triangleOrEmpty,
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child: ClipPath(
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clipper: CubicWaveClipper(),
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child: ClipOval(
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child: Stack(
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alignment: Alignment.center,
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children: <Widget>[
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TextButton(
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key: const ValueKey<String>('ToggleTriangleClipping'),
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onPressed: _toggleTriangleClipper,
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child: const SizedBox(
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width: 500,
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height: 500,
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child: ColoredBox(color: Colors.green),
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),
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),
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const SizedBox(
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width: 400,
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height: 400,
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child: _HybridCompositionAndroidPlatformView(
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viewType: 'changing_color_button_platform_view',
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),
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),
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],
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),
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),
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),
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),
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);
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}
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}
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// Clips to show the top half of the screen, with a cubic wave as the dividing
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// line.
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class CubicWaveClipper extends CustomClipper<Path> {
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@override
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Path getClip(Size size) {
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final Path path = Path();
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// Closer to 1 moves the wave lower, closer to 0 moves it higher.
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final double waveHeight = size.height * 0.65;
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path.lineTo(0, waveHeight);
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path.cubicTo(
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size.width * 0.25,
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waveHeight * 0.8,
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size.width * 0.75,
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waveHeight * 1.2,
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size.width,
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waveHeight,
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);
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path.lineTo(size.width, 0);
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path.lineTo(0, 0);
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path.close();
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return path;
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}
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@override
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bool shouldReclip(CustomClipper<Path> oldClipper) {
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return false;
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}
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}
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// Clips a triangle off the top left of the screen.
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class TriangleClipper extends CustomClipper<Path> {
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@override
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Path getClip(Size size) {
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final Path path = Path();
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path.lineTo(0, size.height);
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path.lineTo(size.width, size.height);
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path.lineTo(size.width, 0);
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path.lineTo(size.width / 2, 0);
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path.lineTo(0, size.height / 2);
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path.lineTo(0, size.height);
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path.close();
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return path;
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}
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@override
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bool shouldReclip(CustomClipper<Path> oldClipper) {
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return false;
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}
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}
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final class _HybridCompositionAndroidPlatformView extends StatelessWidget {
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const _HybridCompositionAndroidPlatformView({required this.viewType});
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final String viewType;
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@override
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Widget build(BuildContext context) {
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return PlatformViewLink(
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viewType: viewType,
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surfaceFactory: (BuildContext context, PlatformViewController controller) {
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return AndroidViewSurface(
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controller: controller as AndroidViewController,
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gestureRecognizers: const <Factory<OneSequenceGestureRecognizer>>{},
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hitTestBehavior: PlatformViewHitTestBehavior.transparent,
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);
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},
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onCreatePlatformView: (PlatformViewCreationParams params) {
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return PlatformViewsService.initHybridAndroidView(
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id: params.id,
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viewType: viewType,
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layoutDirection: TextDirection.ltr,
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creationParamsCodec: const StandardMessageCodec(),
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)
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..addOnPlatformViewCreatedListener(params.onPlatformViewCreated)
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..create();
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},
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);
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}
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}
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@@ -0,0 +1,77 @@
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// 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:convert';
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import 'package:android_driver_extensions/native_driver.dart';
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import 'package:android_driver_extensions/skia_gold.dart';
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import 'package:flutter_driver/flutter_driver.dart';
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import 'package:test/test.dart';
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import '../_luci_skia_gold_prelude.dart';
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/// For local debugging, a (local) golden-file is required as a baseline:
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///
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/// ```sh
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/// # Checkout HEAD, i.e. *before* changes you want to test.
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/// UPDATE_GOLDENS=1 flutter drive lib/hcpp/platform_view_clippath_main.dart
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///
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/// # Make your changes.
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///
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/// # Run the test against baseline.
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/// flutter drive lib/hcpp/platform_view_clippath_main.dart
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/// ```
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///
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/// For a convenient way to deflake a test, see `tool/deflake.dart`.
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void main() async {
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const String goldenPrefix = 'hybrid_composition_pp_platform_view';
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late final FlutterDriver flutterDriver;
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late final NativeDriver nativeDriver;
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setUpAll(() async {
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if (isLuci) {
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await enableSkiaGoldComparator(namePrefix: 'android_engine_test$goldenVariant');
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}
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flutterDriver = await FlutterDriver.connect();
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nativeDriver = await AndroidNativeDriver.connect(flutterDriver);
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await nativeDriver.configureForScreenshotTesting();
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await flutterDriver.waitUntilFirstFrameRasterized();
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});
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tearDownAll(() async {
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await nativeDriver.close();
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await flutterDriver.close();
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});
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test('verify that HCPP is supported and enabled', () async {
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final Map<String, Object?> response =
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json.decode(await flutterDriver.requestData('')) as Map<String, Object?>;
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expect(response['supported'], true);
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}, timeout: Timeout.none);
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test('should screenshot a platform view with specified clippath', () async {
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.complex_clippath.png'),
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);
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}, timeout: Timeout.none);
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test(
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'should start with triangle cutoff on left, and toggle to no triangle cutoff on left',
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() async {
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.complex_clippath.png'),
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);
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await flutterDriver.tap(find.byValueKey('ToggleTriangleClipping'));
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await expectLater(
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nativeDriver.screenshot(),
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matchesGoldenFile('$goldenPrefix.complex_clippath_no_triangle.png'),
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);
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},
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timeout: Timeout.none,
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);
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}
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