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This auto-formats all *.dart files in the repository outside of the `engine` subdirectory and enforces that these files stay formatted with a presubmit check. **Reviewers:** Please carefully review all the commits except for the one titled "formatted". The "formatted" commit was auto-generated by running `dev/tools/format.sh -a -f`. The other commits were hand-crafted to prepare the repo for the formatting change. I recommend reviewing the commits one-by-one via the "Commits" tab and avoiding Github's "Files changed" tab as it will likely slow down your browser because of the size of this PR. --------- Co-authored-by: Kate Lovett <katelovett@google.com> Co-authored-by: LongCatIsLooong <31859944+LongCatIsLooong@users.noreply.github.com>
628 lines
22 KiB
Dart
628 lines
22 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? onHandlePointerEvent;
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@override
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void handlePointerEvent(PointerEvent event) {
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onHandlePointerEvent?.call(event);
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super.handlePointerEvent(event);
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}
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HandleEventCallback? onHandleEvent;
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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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onHandleEvent?.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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TestGestureFlutterBinding.instance.onHandleEvent = events.add;
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GestureBinding.instance.platformDispatcher.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.onHandleEvent = events.add;
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GestureBinding.instance.platformDispatcher.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.onHandleEvent = events.add;
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GestureBinding.instance.platformDispatcher.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(
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pointerRouterEvents.length,
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6,
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reason: 'pointerRouterEvents contains: $pointerRouterEvents',
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);
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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>[ui.PointerData(change: ui.PointerChange.down), ui.PointerData()],
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);
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final List<PointerEvent> events = <PointerEvent>[];
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binding.onHandleEvent = events.add;
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GestureBinding.instance.platformDispatcher.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.onHandleEvent = (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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};
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GestureBinding.instance.platformDispatcher.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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const double devicePixelRatio = 2.5;
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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 =
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PointerEventConverter.expand(packet.data, (int viewId) => 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 handle malformed scrolling event.', () {
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ui.PointerDataPacket packet = const ui.PointerDataPacket(
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data: <ui.PointerData>[ui.PointerData(change: ui.PointerChange.add, device: 24)],
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);
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List<PointerEvent> events =
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PointerEventConverter.expand(packet.data, (int viewId) => devicePixelRatio).toList();
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expect(events.length, 1);
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expect(events[0], isA<PointerAddedEvent>());
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// Send packet contains malformed scroll events.
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packet = const ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(
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signalKind: ui.PointerSignalKind.scroll,
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device: 24,
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scrollDeltaX: double.infinity,
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scrollDeltaY: 10,
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),
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ui.PointerData(
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signalKind: ui.PointerSignalKind.scroll,
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device: 24,
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scrollDeltaX: double.nan,
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scrollDeltaY: 10,
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),
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ui.PointerData(
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signalKind: ui.PointerSignalKind.scroll,
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device: 24,
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scrollDeltaX: double.negativeInfinity,
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scrollDeltaY: 10,
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),
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ui.PointerData(
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signalKind: ui.PointerSignalKind.scroll,
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device: 24,
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scrollDeltaY: double.infinity,
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scrollDeltaX: 10,
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),
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ui.PointerData(
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signalKind: ui.PointerSignalKind.scroll,
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device: 24,
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scrollDeltaY: double.nan,
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scrollDeltaX: 10,
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),
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ui.PointerData(
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signalKind: ui.PointerSignalKind.scroll,
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device: 24,
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scrollDeltaY: double.negativeInfinity,
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scrollDeltaX: 10,
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),
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],
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);
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events = PointerEventConverter.expand(packet.data, (int viewId) => devicePixelRatio).toList();
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expect(events.length, 0);
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// Send packet with a valid scroll event.
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packet = const ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(
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signalKind: ui.PointerSignalKind.scroll,
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device: 24,
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scrollDeltaX: 10,
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scrollDeltaY: 10,
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),
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],
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);
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// Make sure PointerEventConverter can expand when device pixel ratio is valid.
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events = PointerEventConverter.expand(packet.data, (int viewId) => devicePixelRatio).toList();
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expect(events.length, 1);
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expect(events[0], isA<PointerScrollEvent>());
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// Make sure PointerEventConverter returns none when device pixel ratio is invalid.
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events = PointerEventConverter.expand(packet.data, (int viewId) => 0).toList();
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expect(events.length, 0);
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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 =
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PointerEventConverter.expand(packet.data, (int viewId) => 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) * devicePixelRatio;
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final ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(
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change: ui.PointerChange.add,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.hover,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.down,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.move,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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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 =
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PointerEventConverter.expand(packet.data, (int viewId) => 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) * devicePixelRatio;
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final ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(
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change: ui.PointerChange.add,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.hover,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.down,
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buttons: kSecondaryButton,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.move,
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buttons: kSecondaryButton,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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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 =
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PointerEventConverter.expand(packet.data, (int viewId) => 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) * 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(
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change: ui.PointerChange.add,
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kind: kind,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.hover,
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kind: kind,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.down,
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kind: kind,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.move,
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buttons: kSecondaryStylusButton,
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kind: kind,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.up,
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kind: kind,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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],
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);
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final List<PointerEvent> events =
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PointerEventConverter.expand(packet.data, (int viewId) => 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) * 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(
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change: ui.PointerChange.add,
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kind: kind,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.hover,
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kind: kind,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.down,
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kind: kind,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.move,
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buttons: kSecondaryButton,
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kind: kind,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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ui.PointerData(
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change: ui.PointerChange.up,
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kind: kind,
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physicalX: location.dx,
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physicalY: location.dy,
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),
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],
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);
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final List<PointerEvent> events =
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PointerEventConverter.expand(packet.data, (int viewId) => 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) * devicePixelRatio;
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for (final PointerDeviceKind kind in <PointerDeviceKind>[PointerDeviceKind.mouse]) {
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final ui.PointerDataPacket packet = ui.PointerDataPacket(
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data: <ui.PointerData>[
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ui.PointerData(
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change: ui.PointerChange.add,
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kind: kind,
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physicalX: location.dx,
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physicalY: location.dy,
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),
|
|
ui.PointerData(
|
|
change: ui.PointerChange.hover,
|
|
kind: kind,
|
|
physicalX: location.dx,
|
|
physicalY: location.dy,
|
|
),
|
|
ui.PointerData(
|
|
change: ui.PointerChange.down,
|
|
kind: kind,
|
|
buttons: kMiddleMouseButton,
|
|
physicalX: location.dx,
|
|
physicalY: location.dy,
|
|
),
|
|
ui.PointerData(
|
|
change: ui.PointerChange.move,
|
|
kind: kind,
|
|
buttons: kMiddleMouseButton | kSecondaryMouseButton,
|
|
physicalX: location.dx,
|
|
physicalY: location.dy,
|
|
),
|
|
ui.PointerData(
|
|
change: ui.PointerChange.up,
|
|
kind: kind,
|
|
physicalX: location.dx,
|
|
physicalY: location.dy,
|
|
),
|
|
],
|
|
);
|
|
|
|
final List<PointerEvent> events =
|
|
PointerEventConverter.expand(packet.data, (int viewId) => devicePixelRatio).toList();
|
|
|
|
expect(events.length, 5);
|
|
expect(events[0], isA<PointerAddedEvent>());
|
|
expect(events[0].buttons, equals(0));
|
|
expect(events[1], isA<PointerHoverEvent>());
|
|
expect(events[1].buttons, equals(0));
|
|
expect(events[2], isA<PointerDownEvent>());
|
|
expect(events[2].buttons, equals(kMiddleMouseButton));
|
|
expect(events[3], isA<PointerMoveEvent>());
|
|
expect(events[3].buttons, equals(kMiddleMouseButton | kSecondaryMouseButton));
|
|
expect(events[4], isA<PointerUpEvent>());
|
|
expect(events[4].buttons, equals(0));
|
|
}
|
|
});
|
|
|
|
test('Pointer pan/zoom events', () {
|
|
const ui.PointerDataPacket packet = ui.PointerDataPacket(
|
|
data: <ui.PointerData>[
|
|
ui.PointerData(change: ui.PointerChange.panZoomStart),
|
|
ui.PointerData(change: ui.PointerChange.panZoomUpdate),
|
|
ui.PointerData(change: ui.PointerChange.panZoomEnd),
|
|
],
|
|
);
|
|
|
|
final List<PointerEvent> events = <PointerEvent>[];
|
|
binding.onHandleEvent = events.add;
|
|
|
|
binding.platformDispatcher.onPointerDataPacket?.call(packet);
|
|
expect(events.length, 3);
|
|
expect(events[0], isA<PointerPanZoomStartEvent>());
|
|
expect(events[1], isA<PointerPanZoomUpdateEvent>());
|
|
expect(events[2], isA<PointerPanZoomEndEvent>());
|
|
});
|
|
|
|
test('Error handling', () {
|
|
const ui.PointerDataPacket packet = ui.PointerDataPacket(
|
|
data: <ui.PointerData>[
|
|
ui.PointerData(change: ui.PointerChange.down),
|
|
ui.PointerData(change: ui.PointerChange.up),
|
|
],
|
|
);
|
|
|
|
final List<String> events = <String>[];
|
|
binding.onHandlePointerEvent = (PointerEvent event) {
|
|
throw Exception('zipzapzooey $event');
|
|
};
|
|
FlutterError.onError = (FlutterErrorDetails details) {
|
|
events.add(details.toString());
|
|
};
|
|
try {
|
|
GestureBinding.instance.platformDispatcher.onPointerDataPacket?.call(packet);
|
|
expect(events.length, 1);
|
|
expect(
|
|
events[0],
|
|
contains('while handling a pointer data\npacket'),
|
|
); // The default stringifying behavior uses 65 character wrapWidth.
|
|
expect(events[0], contains('zipzapzooey'));
|
|
expect(events[0], contains('PointerDownEvent'));
|
|
expect(
|
|
events[0],
|
|
isNot(contains('PointerUpEvent')),
|
|
); // Failure happens on the first message, remaining messages aren't processed.
|
|
} finally {
|
|
binding.onHandlePointerEvent = null;
|
|
FlutterError.onError = FlutterError.presentError;
|
|
}
|
|
});
|
|
|
|
test('PointerEventConverter processes view IDs', () {
|
|
const int startID = 987654;
|
|
const List<ui.PointerData> data = <ui.PointerData>[
|
|
ui.PointerData(
|
|
viewId: startID + 0,
|
|
change: ui.PointerChange.cancel, // ignore: avoid_redundant_argument_values
|
|
),
|
|
ui.PointerData(viewId: startID + 1, change: ui.PointerChange.add),
|
|
ui.PointerData(viewId: startID + 2, change: ui.PointerChange.remove),
|
|
ui.PointerData(viewId: startID + 3, change: ui.PointerChange.hover),
|
|
ui.PointerData(viewId: startID + 4, change: ui.PointerChange.down),
|
|
ui.PointerData(viewId: startID + 5, change: ui.PointerChange.move),
|
|
ui.PointerData(viewId: startID + 6, change: ui.PointerChange.up),
|
|
ui.PointerData(viewId: startID + 7, change: ui.PointerChange.panZoomStart),
|
|
ui.PointerData(viewId: startID + 8, change: ui.PointerChange.panZoomUpdate),
|
|
ui.PointerData(viewId: startID + 9, change: ui.PointerChange.panZoomEnd),
|
|
];
|
|
|
|
final List<int> viewIds = <int>[];
|
|
double devicePixelRatioGetter(int viewId) {
|
|
viewIds.add(viewId);
|
|
return viewId / 10.0;
|
|
}
|
|
|
|
final List<PointerEvent> events =
|
|
PointerEventConverter.expand(data, devicePixelRatioGetter).toList();
|
|
|
|
final List<int> expectedViewIds = List<int>.generate(10, (int index) => startID + index);
|
|
expect(viewIds, expectedViewIds);
|
|
expect(events, hasLength(10));
|
|
expect(events.map((PointerEvent event) => event.viewId), expectedViewIds);
|
|
});
|
|
}
|