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test(flutter): cover local cursor sizing and mode switches
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fufesou
271
flutter/test/cursor_local_size_test.dart
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271
flutter/test/cursor_local_size_test.dart
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import 'dart:io';
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import 'dart:ui' as ui;
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import 'package:flutter/services.dart';
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import 'package:flutter/widgets.dart';
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import 'package:flutter_hbb/consts.dart';
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import 'package:flutter_hbb/desktop/pages/remote_page.dart';
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import 'package:flutter_hbb/models/input_model.dart';
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import 'package:flutter_hbb/models/model.dart';
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import 'package:flutter_hbb/utils/cursor_size.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'package:get/get.dart';
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import 'package:image/image.dart' as img;
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import 'package:provider/provider.dart';
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const _viewport = Size(200, 160);
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class _Image extends ChangeNotifier implements ImageModel {
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@override
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bool get useTextureRender => false;
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@override
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ui.Image? get image => null;
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@override
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dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
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}
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class _Canvas extends ChangeNotifier implements CanvasModel {
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_Canvas(this.devicePixelRatio);
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@override
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final double devicePixelRatio;
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@override
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final imageOverflow = false.obs;
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@override
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final viewStyle = ViewStyle(
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style: kRemoteViewStyleAdaptive,
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width: _viewport.width,
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height: _viewport.height,
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displayWidth: 400,
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displayHeight: 320,
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);
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@override
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bool get cursorEmbedded => false;
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@override
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Size get size => _viewport;
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@override
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double get scale => 0.5;
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@override
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double get x => 0;
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@override
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double get y => 0;
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@override
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dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
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}
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class _Cursor extends ChangeNotifier implements CursorModel {
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_Cursor(this.cache);
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@override
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CursorData cache;
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@override
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ui.Image? get image => null;
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@override
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double get hotx => cache.hotxOrigin;
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@override
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double get hoty => cache.hotyOrigin;
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@override
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final Set<String> cachedKeys = {};
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@override
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void addKey(String key) => cachedKeys.add(key);
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@override
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dynamic noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
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}
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class _Input extends Fake implements InputModel {
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@override
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final relativeMouseMode = false.obs;
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}
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class _Peer extends Fake implements FfiModel {
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@override
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final pi = PeerInfo();
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@override
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bool get isPeerLinux => false;
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}
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class _FFI extends Fake implements FFI {
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@override
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final inputModel = _Input();
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@override
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final ffiModel = _Peer();
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}
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CursorData _cursor(img.Image image,
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{String id = 'sprite', double hotspot = 0}) {
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return CursorData(
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peerId: 'local-size-test',
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id: id,
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image: image,
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scale: 1,
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data: Platform.isWindows
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? image.getBytes(order: img.ChannelOrder.bgra)
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: Uint8List.fromList(img.encodePng(image)),
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hotxOrigin: hotspot,
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hotyOrigin: hotspot,
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width: image.width,
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height: image.height,
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);
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}
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CursorData _arrow(int density) {
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final image =
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img.Image(width: 17 * density, height: 23 * density, numChannels: 4);
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img.fill(image, color: img.ColorRgba8(255, 255, 255, 255));
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return _cursor(image, id: 'arrow-$density', hotspot: 4.0 * density);
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}
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void main() {
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test('local size preserves remote pixels, padding and asymmetric hotspot',
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() {
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final artwork = img.Image(width: 40, height: 48, numChannels: 4);
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img.fillRect(artwork,
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x1: 8,
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y1: 12,
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x2: 22,
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y2: 35,
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color: img.ColorRgba8(180, 90, 45, 128),
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alphaBlend: false);
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for (final density in [1, 2, 3]) {
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final source = img.copyResize(artwork,
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width: artwork.width * density,
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height: artwork.height * density,
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interpolation: img.Interpolation.nearest);
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expect(cursorVisibleSize(source), 24 * density);
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final cursor = CursorData(
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peerId: 'local-size-test',
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id: 'padded-$density',
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image: source,
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scale: 1,
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data: Platform.isWindows
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? source.getBytes(order: img.ChannelOrder.bgra)
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: Uint8List.fromList(img.encodePng(source)),
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hotxOrigin: 10.0 * density,
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hotyOrigin: 17.0 * density,
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width: source.width,
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height: source.height,
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)..localSize = 24;
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cursor.updateGetKey(0.01);
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final output = Platform.isWindows
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? img.Image.fromBytes(
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width: cursor.scaledWidth,
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height: cursor.scaledHeight,
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bytes: cursor.data!.buffer,
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order: img.ChannelOrder.bgra)
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: img.decodePng(cursor.data!)!;
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expect(cursorVisibleSize(output), 24);
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expect(output.getBytes(), artwork.getBytes());
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expect((cursor.hotx, cursor.hoty), (10, 17));
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}
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});
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test('local cursor minimum keeps a thin remote cursor visible', () {
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final thin = img.Image(width: 1, height: 48, numChannels: 4);
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img.fill(thin, color: img.ColorRgba8(255, 255, 255, 255));
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final cursor = _cursor(thin)..localSize = 2;
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cursor.updateGetKey(1);
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expect(cursor.scaledWidth, 1);
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expect(cursor.scaledHeight, kMinCursorSize);
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final blank = _cursor(img.Image(width: 17, height: 23, numChannels: 4))
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..localSize = 24;
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blank.updateGetKey(1);
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final output = Platform.isWindows
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? img.Image.fromBytes(
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width: 17,
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height: 23,
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bytes: blank.data!.buffer,
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order: img.ChannelOrder.bgra)
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: img.decodePng(blank.data!)!;
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expect(cursorVisibleSize(output), 0);
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expect(blank.scale, 1);
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});
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test('switching local sizing keeps bitmap data and cache geometry consistent',
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() {
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final pending = _arrow(1)..data = null;
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pending.updateGetKey(1);
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expect(pending.data, isNull);
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final cursor = _arrow(1);
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const scale = 1.5;
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final originalKey = cursor.updateGetKey(scale);
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cursor.localSize = 23 * scale;
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final localKey = cursor.updateGetKey(scale);
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expect(cursor.scaledWidth, 26);
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if (Platform.isWindows) {
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expect(localKey, isNot(originalKey));
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expect(cursor.data!.length, 26 * 35 * 4);
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}
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cursor.localSize = null;
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expect(cursor.updateGetKey(scale), originalKey);
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if (Platform.isWindows) expect(cursor.data!.length, 25 * 34 * 4);
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});
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for (final dpr in [1.0, 2.0, 3.0]) {
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testWidgets('Zoom off at local DPR $dpr ignores remote raster density',
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(tester) async {
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final channel = Platform.isWindows
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? SystemChannels.mouseCursor
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: const MethodChannel('flutter_custom_cursor');
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final registered = <Map<dynamic, dynamic>>[];
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tester.binding.defaultBinaryMessenger.setMockMethodCallHandler(channel,
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(call) async {
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if (call.method.startsWith('createCustomCursor')) {
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final arguments = call.arguments as Map<dynamic, dynamic>;
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registered.add(arguments);
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return arguments['name'];
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}
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return null;
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});
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addTearDown(() => tester.binding.defaultBinaryMessenger
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.setMockMethodCallHandler(channel, null));
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const sizeChannel = MethodChannel('org.rustdesk.rustdesk/cursor');
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tester.binding.defaultBinaryMessenger
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.setMockMethodCallHandler(sizeChannel, (call) async {
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expect(call.method, 'getSystemCursorSize');
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return Platform.isWindows ? 23.0 * dpr : 23.0;
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});
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addTearDown(() => tester.binding.defaultBinaryMessenger
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.setMockMethodCallHandler(sizeChannel, null));
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final cursor = _Cursor(_arrow(1));
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await tester.pumpWidget(MediaQuery(
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data: MediaQueryData(devicePixelRatio: dpr),
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child: MultiProvider(
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providers: [
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ChangeNotifierProvider<ImageModel>(create: (_) => _Image()),
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ChangeNotifierProvider<CanvasModel>(create: (_) => _Canvas(dpr)),
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ChangeNotifierProvider<CursorModel>.value(value: cursor),
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],
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child: ImagePaint(
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ffi: _FFI(),
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id: 'local-size-test',
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zoomCursor: false.obs,
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cursorOverImage: true.obs,
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keyboardEnabled: true.obs,
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remoteCursorMoved: false.obs,
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),
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),
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));
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await tester.pump();
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expect(registered, hasLength(1));
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final original = registered.single;
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cursor.cache = _arrow(2);
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cursor.notifyListeners();
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await tester.pump();
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expect(registered, hasLength(2));
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final retina = registered.last;
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expect(
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[retina['width'], retina['height'], retina['hotX'], retina['hotY']],
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[
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original['width'],
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original['height'],
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original['hotX'],
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original['hotY']
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],
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reason: 'Only the remote raster density changed; the local cursor must '
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'retain its size and hotspot.',
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);
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await tester.pumpWidget(const SizedBox.shrink());
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cursor.dispose();
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});
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}
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}
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