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2d4acb8041
Previously we supplied individual parameters to the various drag and pan callbacks. However, that approach isn't extensible because each new parameter is a breaking change to the API. This patch makes a one-time breaking change to the API to provide a "details" object that we can extend over time as we need to expose more information. The first planned extension is adding enough information to accurately produce an overscroll glow on Android.
141 lines
4.2 KiB
Dart
141 lines
4.2 KiB
Dart
// Copyright 2015 The Chromium 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 'package:flutter/gestures.dart';
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import 'package:test/test.dart';
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import 'gesture_tester.dart';
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const PointerDownEvent down = const PointerDownEvent(
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pointer: 5,
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position: const Point(10.0, 10.0)
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);
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const PointerUpEvent up = const PointerUpEvent(
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pointer: 5,
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position: const Point(11.0, 9.0)
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);
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void main() {
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setUp(ensureGestureBinding);
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testGesture('Should recognize long press', (GestureTester tester) {
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LongPressGestureRecognizer longPress = new LongPressGestureRecognizer();
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bool longPressRecognized = false;
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longPress.onLongPress = () {
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longPressRecognized = true;
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};
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longPress.addPointer(down);
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tester.closeArena(5);
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expect(longPressRecognized, isFalse);
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tester.route(down);
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expect(longPressRecognized, isFalse);
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tester.async.elapse(const Duration(milliseconds: 300));
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expect(longPressRecognized, isFalse);
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tester.async.elapse(const Duration(milliseconds: 700));
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expect(longPressRecognized, isTrue);
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longPress.dispose();
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});
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testGesture('Up cancels long press', (GestureTester tester) {
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LongPressGestureRecognizer longPress = new LongPressGestureRecognizer();
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bool longPressRecognized = false;
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longPress.onLongPress = () {
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longPressRecognized = true;
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};
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longPress.addPointer(down);
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tester.closeArena(5);
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expect(longPressRecognized, isFalse);
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tester.route(down);
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expect(longPressRecognized, isFalse);
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tester.async.elapse(const Duration(milliseconds: 300));
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expect(longPressRecognized, isFalse);
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tester.route(up);
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expect(longPressRecognized, isFalse);
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tester.async.elapse(const Duration(seconds: 1));
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expect(longPressRecognized, isFalse);
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longPress.dispose();
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});
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testGesture('Should recognize both tap down and long press', (GestureTester tester) {
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LongPressGestureRecognizer longPress = new LongPressGestureRecognizer();
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TapGestureRecognizer tap = new TapGestureRecognizer();
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bool tapDownRecognized = false;
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tap.onTapDown = (_) {
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tapDownRecognized = true;
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};
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bool longPressRecognized = false;
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longPress.onLongPress = () {
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longPressRecognized = true;
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};
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tap.addPointer(down);
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longPress.addPointer(down);
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tester.closeArena(5);
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expect(tapDownRecognized, isFalse);
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expect(longPressRecognized, isFalse);
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tester.route(down);
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expect(tapDownRecognized, isFalse);
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expect(longPressRecognized, isFalse);
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tester.async.elapse(const Duration(milliseconds: 300));
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expect(tapDownRecognized, isTrue);
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expect(longPressRecognized, isFalse);
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tester.async.elapse(const Duration(milliseconds: 700));
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expect(tapDownRecognized, isTrue);
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expect(longPressRecognized, isTrue);
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tap.dispose();
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longPress.dispose();
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});
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testGesture('Drag start delayed by microtask', (GestureTester tester) {
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LongPressGestureRecognizer longPress = new LongPressGestureRecognizer();
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HorizontalDragGestureRecognizer drag = new HorizontalDragGestureRecognizer();
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bool isDangerousStack = false;
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bool dragStartRecognized = false;
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drag.onStart = (DragStartDetails details) {
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expect(isDangerousStack, isFalse);
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dragStartRecognized = true;
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};
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bool longPressRecognized = false;
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longPress.onLongPress = () {
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expect(isDangerousStack, isFalse);
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longPressRecognized = true;
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};
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drag.addPointer(down);
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longPress.addPointer(down);
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tester.closeArena(5);
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expect(dragStartRecognized, isFalse);
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expect(longPressRecognized, isFalse);
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tester.route(down);
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expect(dragStartRecognized, isFalse);
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expect(longPressRecognized, isFalse);
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tester.async.elapse(const Duration(milliseconds: 300));
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expect(dragStartRecognized, isFalse);
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expect(longPressRecognized, isFalse);
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isDangerousStack = true;
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longPress.dispose();
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isDangerousStack = false;
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expect(dragStartRecognized, isFalse);
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expect(longPressRecognized, isFalse);
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tester.async.flushMicrotasks();
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expect(dragStartRecognized, isTrue);
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expect(longPressRecognized, isFalse);
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drag.dispose();
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});
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}
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