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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/gestures.dart';
import 'package:test/test.dart';
import 'gesture_tester.dart';
const PointerDownEvent down = const PointerDownEvent(
pointer: 5,
position: const Point(10.0, 10.0)
);
const PointerUpEvent up = const PointerUpEvent(
pointer: 5,
position: const Point(11.0, 9.0)
);
void main() {
setUp(ensureGestureBinding);
testGesture('Should recognize long press', (GestureTester tester) {
LongPressGestureRecognizer longPress = new LongPressGestureRecognizer();
bool longPressRecognized = false;
longPress.onLongPress = () {
longPressRecognized = true;
};
longPress.addPointer(down);
tester.closeArena(5);
expect(longPressRecognized, isFalse);
tester.route(down);
expect(longPressRecognized, isFalse);
tester.async.elapse(const Duration(milliseconds: 300));
expect(longPressRecognized, isFalse);
tester.async.elapse(const Duration(milliseconds: 700));
expect(longPressRecognized, isTrue);
longPress.dispose();
});
testGesture('Up cancels long press', (GestureTester tester) {
LongPressGestureRecognizer longPress = new LongPressGestureRecognizer();
bool longPressRecognized = false;
longPress.onLongPress = () {
longPressRecognized = true;
};
longPress.addPointer(down);
tester.closeArena(5);
expect(longPressRecognized, isFalse);
tester.route(down);
expect(longPressRecognized, isFalse);
tester.async.elapse(const Duration(milliseconds: 300));
expect(longPressRecognized, isFalse);
tester.route(up);
expect(longPressRecognized, isFalse);
tester.async.elapse(const Duration(seconds: 1));
expect(longPressRecognized, isFalse);
longPress.dispose();
});
testGesture('Should recognize both tap down and long press', (GestureTester tester) {
LongPressGestureRecognizer longPress = new LongPressGestureRecognizer();
TapGestureRecognizer tap = new TapGestureRecognizer();
bool tapDownRecognized = false;
tap.onTapDown = (_) {
tapDownRecognized = true;
};
bool longPressRecognized = false;
longPress.onLongPress = () {
longPressRecognized = true;
};
tap.addPointer(down);
longPress.addPointer(down);
tester.closeArena(5);
expect(tapDownRecognized, isFalse);
expect(longPressRecognized, isFalse);
tester.route(down);
expect(tapDownRecognized, isFalse);
expect(longPressRecognized, isFalse);
tester.async.elapse(const Duration(milliseconds: 300));
expect(tapDownRecognized, isTrue);
expect(longPressRecognized, isFalse);
tester.async.elapse(const Duration(milliseconds: 700));
expect(tapDownRecognized, isTrue);
expect(longPressRecognized, isTrue);
tap.dispose();
longPress.dispose();
});
testGesture('Drag start delayed by microtask', (GestureTester tester) {
LongPressGestureRecognizer longPress = new LongPressGestureRecognizer();
HorizontalDragGestureRecognizer drag = new HorizontalDragGestureRecognizer();
bool isDangerousStack = false;
bool dragStartRecognized = false;
drag.onStart = (DragStartDetails details) {
expect(isDangerousStack, isFalse);
dragStartRecognized = true;
};
bool longPressRecognized = false;
longPress.onLongPress = () {
expect(isDangerousStack, isFalse);
longPressRecognized = true;
};
drag.addPointer(down);
longPress.addPointer(down);
tester.closeArena(5);
expect(dragStartRecognized, isFalse);
expect(longPressRecognized, isFalse);
tester.route(down);
expect(dragStartRecognized, isFalse);
expect(longPressRecognized, isFalse);
tester.async.elapse(const Duration(milliseconds: 300));
expect(dragStartRecognized, isFalse);
expect(longPressRecognized, isFalse);
isDangerousStack = true;
longPress.dispose();
isDangerousStack = false;
expect(dragStartRecognized, isFalse);
expect(longPressRecognized, isFalse);
tester.async.flushMicrotasks();
expect(dragStartRecognized, isTrue);
expect(longPressRecognized, isFalse);
drag.dispose();
});
}