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97 lines
3.3 KiB
Dart
97 lines
3.3 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:async';
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import 'dart:typed_data';
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import 'dart:ui' as ui;
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import 'package:flutter_driver/driver_extension.dart';
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import 'windows.dart';
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void drawHelloWorld(ui.FlutterView view) {
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final ui.ParagraphStyle style = ui.ParagraphStyle();
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final ui.ParagraphBuilder paragraphBuilder = ui.ParagraphBuilder(style)
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..addText('Hello world');
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final ui.Paragraph paragraph = paragraphBuilder.build();
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paragraph.layout(const ui.ParagraphConstraints(width: 100.0));
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final ui.PictureRecorder recorder = ui.PictureRecorder();
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final ui.Canvas canvas = ui.Canvas(recorder);
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canvas.drawParagraph(paragraph, ui.Offset.zero);
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final ui.Picture picture = recorder.endRecording();
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final ui.SceneBuilder sceneBuilder = ui.SceneBuilder()
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..addPicture(ui.Offset.zero, picture)
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..pop();
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view.render(sceneBuilder.build());
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}
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void main() async {
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// TODO(goderbauer): Create a window if embedder doesn't provide an implicit view to draw into.
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assert(ui.PlatformDispatcher.instance.implicitView != null);
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final ui.FlutterView view = ui.PlatformDispatcher.instance.implicitView!;
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// Create a completer to send the window visibility result back to the
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// integration test.
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final Completer<String> visibilityCompleter = Completer<String>();
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enableFlutterDriverExtension(handler: (String? message) async {
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if (message == 'verifyWindowVisibility') {
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return visibilityCompleter.future;
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} else if (message == 'verifyTheme') {
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final bool app = await isAppDarkModeEnabled();
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final bool system = await isSystemDarkModeEnabled();
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return (app == system)
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? 'success'
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: 'error: app dark mode ($app) does not match system dark mode ($system)';
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} else if (message == 'verifyStringConversion') {
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// Use a test string that contains code points that fit in both 8 and 16 bits.
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// The code points are passed a list of integers through the method channel,
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// which will use the UTF16 to UTF8 utility function to convert them to a
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// std::string, which should equate to the original expected string.
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const String expected = 'ABCℵ';
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final Int32List codePoints = Int32List.fromList(expected.codeUnits);
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final String converted = await testStringConversion(codePoints);
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return (converted == expected)
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? 'success'
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: 'error: conversion of UTF16 string to UTF8 failed, expected "${expected.codeUnits}" but got "${converted.codeUnits}"';
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}
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throw 'Unrecognized message: $message';
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});
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try {
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if (await isWindowVisible()) {
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throw 'Window should be hidden at startup';
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}
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bool firstFrame = true;
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ui.PlatformDispatcher.instance.onBeginFrame = (Duration duration) async {
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if (await isWindowVisible()) {
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if (firstFrame) {
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throw 'Window should be hidden on first frame';
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}
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if (!visibilityCompleter.isCompleted) {
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visibilityCompleter.complete('success');
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}
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}
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// Draw something to trigger the first frame callback that displays the
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// window.
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drawHelloWorld(view);
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firstFrame = false;
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};
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ui.PlatformDispatcher.instance.scheduleFrame();
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} catch (e) {
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visibilityCompleter.completeError(e);
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rethrow;
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}
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}
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