// Copyright 2014 The Flutter 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:flutter_test/flutter_test.dart'; import 'gesture_tester.dart'; class TestDrag extends Drag { } void main() { TestWidgetsFlutterBinding.ensureInitialized(); testGesture('MultiDrag: moving before delay rejects', (GestureTester tester) { final DelayedMultiDragGestureRecognizer drag = DelayedMultiDragGestureRecognizer(); bool didStartDrag = false; drag.onStart = (Offset position) { didStartDrag = true; return TestDrag(); }; final TestPointer pointer = TestPointer(5); final PointerDownEvent down = pointer.down(const Offset(10.0, 10.0)); drag.addPointer(down); tester.closeArena(5); expect(didStartDrag, isFalse); tester.async.flushMicrotasks(); expect(didStartDrag, isFalse); tester.route(pointer.move(const Offset(20.0, 60.0))); // move more than touch slop before delay expires expect(didStartDrag, isFalse); tester.async.elapse(kLongPressTimeout * 2); // expire delay expect(didStartDrag, isFalse); tester.route(pointer.move(const Offset(30.0, 120.0))); // move some more after delay expires expect(didStartDrag, isFalse); drag.dispose(); }); testGesture('MultiDrag: delay triggers', (GestureTester tester) { final DelayedMultiDragGestureRecognizer drag = DelayedMultiDragGestureRecognizer(); bool didStartDrag = false; drag.onStart = (Offset position) { didStartDrag = true; return TestDrag(); }; final TestPointer pointer = TestPointer(5); final PointerDownEvent down = pointer.down(const Offset(10.0, 10.0)); drag.addPointer(down); tester.closeArena(5); expect(didStartDrag, isFalse); tester.async.flushMicrotasks(); expect(didStartDrag, isFalse); tester.route(pointer.move(const Offset(20.0, 20.0))); // move less than touch slop before delay expires expect(didStartDrag, isFalse); tester.async.elapse(kLongPressTimeout * 2); // expire delay expect(didStartDrag, isTrue); tester.route(pointer.move(const Offset(30.0, 70.0))); // move more than touch slop after delay expires expect(didStartDrag, isTrue); drag.dispose(); }); testGesture('MultiDrag: can filter based on device kind', (GestureTester tester) { final DelayedMultiDragGestureRecognizer drag = DelayedMultiDragGestureRecognizer( supportedDevices: <PointerDeviceKind>{ PointerDeviceKind.touch }, ); bool didStartDrag = false; drag.onStart = (Offset position) { didStartDrag = true; return TestDrag(); }; final TestPointer mousePointer = TestPointer(5, PointerDeviceKind.mouse); final PointerDownEvent down = mousePointer.down(const Offset(10.0, 10.0)); drag.addPointer(down); tester.closeArena(5); expect(didStartDrag, isFalse); tester.async.flushMicrotasks(); expect(didStartDrag, isFalse); tester.route(mousePointer.move(const Offset(20.0, 20.0))); // move less than touch slop before delay expires expect(didStartDrag, isFalse); tester.async.elapse(kLongPressTimeout * 2); // expire delay // Still false because it shouldn't recognize mouse events. expect(didStartDrag, isFalse); tester.route(mousePointer.move(const Offset(30.0, 70.0))); // move more than touch slop after delay expires // And still false. expect(didStartDrag, isFalse); drag.dispose(); }); test('allowedButtonsFilter should work the same when null or not specified', () { // Regression test for https://github.com/flutter/flutter/pull/122227 final ImmediateMultiDragGestureRecognizer recognizer1 = ImmediateMultiDragGestureRecognizer(); // ignore: avoid_redundant_argument_values final ImmediateMultiDragGestureRecognizer recognizer2 = ImmediateMultiDragGestureRecognizer(allowedButtonsFilter: null); // We want to test _allowedButtonsFilter, which is called in this method. const PointerDownEvent allowedPointer = PointerDownEvent(timeStamp: Duration(days: 10)); // ignore: invalid_use_of_protected_member expect(recognizer1.isPointerAllowed(allowedPointer), true); // ignore: invalid_use_of_protected_member expect(recognizer2.isPointerAllowed(allowedPointer), true); const PointerDownEvent rejectedPointer = PointerDownEvent(timeStamp: Duration(days: 10), buttons: kMiddleMouseButton); // ignore: invalid_use_of_protected_member expect(recognizer1.isPointerAllowed(rejectedPointer), false); // ignore: invalid_use_of_protected_member expect(recognizer2.isPointerAllowed(rejectedPointer), false); }); }