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339 lines
14 KiB
Dart
339 lines
14 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:ui' as ui;
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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/scheduler.dart';
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import 'package:flutter_test/flutter_test.dart';
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typedef HandleEventCallback = void Function(PointerEvent event);
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class TestGestureFlutterBinding extends BindingBase with GestureBinding, SchedulerBinding {
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@override
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void initInstances() {
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super.initInstances();
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_instance = this;
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}
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/// The singleton instance of this object.
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///
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/// Provides access to the features exposed by this class. The binding must
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/// be initialized before using this getter; this is typically done by calling
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/// [TestGestureFlutterBinding.ensureInitialized].
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static TestGestureFlutterBinding get instance => BindingBase.checkInstance(_instance);
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static TestGestureFlutterBinding? _instance;
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/// Returns an instance of the [TestGestureFlutterBinding], creating and
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/// initializing it if necessary.
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static TestGestureFlutterBinding ensureInitialized() {
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if (_instance == null) {
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TestGestureFlutterBinding();
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}
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return _instance!;
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}
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HandleEventCallback? callback;
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@override
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void handleEvent(PointerEvent event, HitTestEntry entry) {
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super.handleEvent(event, entry);
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if (callback != null)
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callback?.call(event);
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}
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}
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void main() {
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final TestGestureFlutterBinding binding = TestGestureFlutterBinding.ensureInitialized();
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test('Pointer tap events', () {
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const ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(change: ui.PointerChange.down),
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ui.PointerData(change: ui.PointerChange.up),
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],
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);
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final List<PointerEvent> events = <PointerEvent>[];
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binding.callback = events.add;
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ui.window.onPointerDataPacket?.call(packet);
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expect(events.length, 2);
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expect(events[0], isA<PointerDownEvent>());
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expect(events[1], isA<PointerUpEvent>());
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});
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test('Pointer move events', () {
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const ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(change: ui.PointerChange.down),
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ui.PointerData(change: ui.PointerChange.move),
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ui.PointerData(change: ui.PointerChange.up),
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],
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);
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final List<PointerEvent> events = <PointerEvent>[];
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binding.callback = events.add;
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ui.window.onPointerDataPacket?.call(packet);
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expect(events.length, 3);
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expect(events[0], isA<PointerDownEvent>());
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expect(events[1], isA<PointerMoveEvent>());
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expect(events[2], isA<PointerUpEvent>());
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});
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test('Pointer hover events', () {
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const ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(change: ui.PointerChange.add),
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ui.PointerData(change: ui.PointerChange.hover),
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ui.PointerData(change: ui.PointerChange.hover),
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ui.PointerData(change: ui.PointerChange.remove),
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ui.PointerData(change: ui.PointerChange.add),
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ui.PointerData(change: ui.PointerChange.hover),
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],
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);
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final List<PointerEvent> pointerRouterEvents = <PointerEvent>[];
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GestureBinding.instance.pointerRouter.addGlobalRoute(pointerRouterEvents.add);
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final List<PointerEvent> events = <PointerEvent>[];
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binding.callback = events.add;
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ui.window.onPointerDataPacket?.call(packet);
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expect(events.length, 3);
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expect(events[0], isA<PointerHoverEvent>());
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expect(events[1], isA<PointerHoverEvent>());
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expect(events[2], isA<PointerHoverEvent>());
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expect(pointerRouterEvents.length, 6, reason: 'pointerRouterEvents contains: $pointerRouterEvents');
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expect(pointerRouterEvents[0], isA<PointerAddedEvent>());
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expect(pointerRouterEvents[1], isA<PointerHoverEvent>());
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expect(pointerRouterEvents[2], isA<PointerHoverEvent>());
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expect(pointerRouterEvents[3], isA<PointerRemovedEvent>());
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expect(pointerRouterEvents[4], isA<PointerAddedEvent>());
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expect(pointerRouterEvents[5], isA<PointerHoverEvent>());
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});
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test('Pointer cancel events', () {
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const ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(change: ui.PointerChange.down),
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ui.PointerData(),
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],
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);
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final List<PointerEvent> events = <PointerEvent>[];
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binding.callback = events.add;
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ui.window.onPointerDataPacket?.call(packet);
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expect(events.length, 2);
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expect(events[0], isA<PointerDownEvent>());
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expect(events[1], isA<PointerCancelEvent>());
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});
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test('Can cancel pointers', () {
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const ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(change: ui.PointerChange.down),
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ui.PointerData(change: ui.PointerChange.up),
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],
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);
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final List<PointerEvent> events = <PointerEvent>[];
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binding.callback = (PointerEvent event) {
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events.add(event);
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if (event is PointerDownEvent)
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binding.cancelPointer(event.pointer);
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};
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ui.window.onPointerDataPacket?.call(packet);
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expect(events.length, 2);
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expect(events[0], isA<PointerDownEvent>());
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expect(events[1], isA<PointerCancelEvent>());
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});
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test('Can expand add and hover pointers', () {
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const ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(change: ui.PointerChange.add, device: 24),
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ui.PointerData(change: ui.PointerChange.hover, device: 24),
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ui.PointerData(change: ui.PointerChange.remove, device: 24),
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ui.PointerData(change: ui.PointerChange.add, device: 24),
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ui.PointerData(change: ui.PointerChange.hover, device: 24),
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],
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);
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final List<PointerEvent> events = PointerEventConverter.expand(packet.data, ui.window.devicePixelRatio).toList();
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expect(events.length, 5);
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expect(events[0], isA<PointerAddedEvent>());
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expect(events[1], isA<PointerHoverEvent>());
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expect(events[2], isA<PointerRemovedEvent>());
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expect(events[3], isA<PointerAddedEvent>());
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expect(events[4], isA<PointerHoverEvent>());
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});
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test('Can expand pointer scroll events', () {
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const ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(change: ui.PointerChange.add),
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ui.PointerData(change: ui.PointerChange.hover, signalKind: ui.PointerSignalKind.scroll),
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],
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);
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final List<PointerEvent> events = PointerEventConverter.expand(packet.data, ui.window.devicePixelRatio).toList();
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expect(events.length, 2);
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expect(events[0], isA<PointerAddedEvent>());
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expect(events[1], isA<PointerScrollEvent>());
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});
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test('Should synthesize kPrimaryButton for touch when no button is set', () {
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final Offset location = const Offset(10.0, 10.0) * ui.window.devicePixelRatio;
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final ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(change: ui.PointerChange.add, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.hover, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.down, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.move, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.up, physicalX: location.dx, physicalY: location.dy),
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],
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);
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final List<PointerEvent> events = PointerEventConverter.expand(packet.data, ui.window.devicePixelRatio).toList();
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expect(events.length, 5);
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expect(events[0], isA<PointerAddedEvent>());
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expect(events[0].buttons, equals(0));
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expect(events[1], isA<PointerHoverEvent>());
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expect(events[1].buttons, equals(0));
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expect(events[2], isA<PointerDownEvent>());
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expect(events[2].buttons, equals(kPrimaryButton));
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expect(events[3], isA<PointerMoveEvent>());
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expect(events[3].buttons, equals(kPrimaryButton));
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expect(events[4], isA<PointerUpEvent>());
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expect(events[4].buttons, equals(0));
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});
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test('Should not synthesize kPrimaryButton for touch when a button is set', () {
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final Offset location = const Offset(10.0, 10.0) * ui.window.devicePixelRatio;
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final ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(change: ui.PointerChange.add, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.hover, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.down, buttons: kSecondaryButton, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.move, buttons: kSecondaryButton, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.up, physicalX: location.dx, physicalY: location.dy),
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],
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);
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final List<PointerEvent> events = PointerEventConverter.expand(packet.data, ui.window.devicePixelRatio).toList();
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expect(events.length, 5);
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expect(events[0], isA<PointerAddedEvent>());
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expect(events[0].buttons, equals(0));
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expect(events[1], isA<PointerHoverEvent>());
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expect(events[1].buttons, equals(0));
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expect(events[2], isA<PointerDownEvent>());
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expect(events[2].buttons, equals(kSecondaryButton));
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expect(events[3], isA<PointerMoveEvent>());
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expect(events[3].buttons, equals(kSecondaryButton));
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expect(events[4], isA<PointerUpEvent>());
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expect(events[4].buttons, equals(0));
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});
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test('Should synthesize kPrimaryButton for stylus when no button is set', () {
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final Offset location = const Offset(10.0, 10.0) * ui.window.devicePixelRatio;
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for (final PointerDeviceKind kind in <PointerDeviceKind>[
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PointerDeviceKind.stylus,
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PointerDeviceKind.invertedStylus,
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]) {
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final ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(change: ui.PointerChange.add, kind: kind, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.hover, kind: kind, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.down, kind: kind, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.move, buttons: kSecondaryStylusButton, kind: kind, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.up, kind: kind, physicalX: location.dx, physicalY: location.dy),
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],
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);
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final List<PointerEvent> events = PointerEventConverter.expand(packet.data, ui.window.devicePixelRatio).toList();
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expect(events.length, 5);
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expect(events[0], isA<PointerAddedEvent>());
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expect(events[0].buttons, equals(0));
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expect(events[1], isA<PointerHoverEvent>());
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expect(events[1].buttons, equals(0));
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expect(events[2], isA<PointerDownEvent>());
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expect(events[2].buttons, equals(kPrimaryButton));
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expect(events[3], isA<PointerMoveEvent>());
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expect(events[3].buttons, equals(kSecondaryStylusButton));
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expect(events[4], isA<PointerUpEvent>());
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expect(events[4].buttons, equals(0));
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}
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});
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test('Should synthesize kPrimaryButton for unknown devices when no button is set', () {
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final Offset location = const Offset(10.0, 10.0) * ui.window.devicePixelRatio;
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const PointerDeviceKind kind = PointerDeviceKind.unknown;
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final ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(change: ui.PointerChange.add, kind: kind, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.hover, kind: kind, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.down, kind: kind, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.move, buttons: kSecondaryButton, kind: kind, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.up, kind: kind, physicalX: location.dx, physicalY: location.dy),
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],
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);
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final List<PointerEvent> events = PointerEventConverter.expand(packet.data, ui.window.devicePixelRatio).toList();
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expect(events.length, 5);
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expect(events[0], isA<PointerAddedEvent>());
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expect(events[0].buttons, equals(0));
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expect(events[1], isA<PointerHoverEvent>());
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expect(events[1].buttons, equals(0));
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expect(events[2], isA<PointerDownEvent>());
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expect(events[2].buttons, equals(kPrimaryButton));
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expect(events[3], isA<PointerMoveEvent>());
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expect(events[3].buttons, equals(kSecondaryButton));
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expect(events[4], isA<PointerUpEvent>());
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expect(events[4].buttons, equals(0));
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});
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test('Should not synthesize kPrimaryButton for mouse', () {
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final Offset location = const Offset(10.0, 10.0) * ui.window.devicePixelRatio;
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for (final PointerDeviceKind kind in <PointerDeviceKind>[
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PointerDeviceKind.mouse,
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]) {
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final ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(change: ui.PointerChange.add, kind: kind, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.hover, kind: kind, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.down, kind: kind, buttons: kMiddleMouseButton, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.move, kind: kind, buttons: kMiddleMouseButton | kSecondaryMouseButton, physicalX: location.dx, physicalY: location.dy),
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ui.PointerData(change: ui.PointerChange.up, kind: kind, physicalX: location.dx, physicalY: location.dy),
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],
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);
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final List<PointerEvent> events = PointerEventConverter.expand(packet.data, ui.window.devicePixelRatio).toList();
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expect(events.length, 5);
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expect(events[0], isA<PointerAddedEvent>());
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expect(events[0].buttons, equals(0));
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expect(events[1], isA<PointerHoverEvent>());
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expect(events[1].buttons, equals(0));
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expect(events[2], isA<PointerDownEvent>());
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expect(events[2].buttons, equals(kMiddleMouseButton));
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expect(events[3], isA<PointerMoveEvent>());
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expect(events[3].buttons, equals(kMiddleMouseButton | kSecondaryMouseButton));
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expect(events[4], isA<PointerUpEvent>());
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expect(events[4].buttons, equals(0));
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}
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});
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}
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