| // 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_test/flutter_test.dart'; |
| import 'package:flutter/gestures.dart'; |
| |
| import 'gesture_tester.dart'; |
| |
| void main() { |
| setUp(ensureGestureBinding); |
| |
| testGesture('GestureArenaTeam rejection test', (GestureTester tester) { |
| final GestureArenaTeam team = GestureArenaTeam(); |
| final HorizontalDragGestureRecognizer horizontalDrag = HorizontalDragGestureRecognizer()..team = team; |
| final VerticalDragGestureRecognizer verticalDrag = VerticalDragGestureRecognizer()..team = team; |
| final TapGestureRecognizer tap = TapGestureRecognizer(); |
| |
| expect(horizontalDrag.team, equals(team)); |
| expect(verticalDrag.team, equals(team)); |
| expect(tap.team, isNull); |
| |
| final List<String> log = <String>[]; |
| |
| horizontalDrag.onStart = (DragStartDetails details) { log.add('horizontal-drag-start'); }; |
| verticalDrag.onStart = (DragStartDetails details) { log.add('vertical-drag-start'); }; |
| tap.onTap = () { log.add('tap'); }; |
| |
| void test(Offset delta) { |
| const Offset origin = Offset(10.0, 10.0); |
| final TestPointer pointer = TestPointer(5); |
| final PointerDownEvent down = pointer.down(origin); |
| horizontalDrag.addPointer(down); |
| verticalDrag.addPointer(down); |
| tap.addPointer(down); |
| expect(log, isEmpty); |
| tester.closeArena(5); |
| expect(log, isEmpty); |
| tester.route(down); |
| expect(log, isEmpty); |
| tester.route(pointer.move(origin + delta)); |
| tester.route(pointer.up()); |
| } |
| |
| test(Offset.zero); |
| expect(log, <String>['tap']); |
| log.clear(); |
| |
| test(const Offset(0.0, 30.0)); |
| expect(log, <String>['vertical-drag-start']); |
| log.clear(); |
| |
| horizontalDrag.dispose(); |
| verticalDrag.dispose(); |
| tap.dispose(); |
| }); |
| |
| testGesture('GestureArenaTeam captain', (GestureTester tester) { |
| final GestureArenaTeam team = GestureArenaTeam(); |
| final PassiveGestureRecognizer captain = PassiveGestureRecognizer()..team = team; |
| final HorizontalDragGestureRecognizer horizontalDrag = HorizontalDragGestureRecognizer()..team = team; |
| final VerticalDragGestureRecognizer verticalDrag = VerticalDragGestureRecognizer()..team = team; |
| final TapGestureRecognizer tap = TapGestureRecognizer(); |
| |
| team.captain = captain; |
| |
| final List<String> log = <String>[]; |
| |
| captain.onGestureAccepted = () { log.add('captain accepted gesture'); }; |
| horizontalDrag.onStart = (DragStartDetails details) { log.add('horizontal-drag-start'); }; |
| verticalDrag.onStart = (DragStartDetails details) { log.add('vertical-drag-start'); }; |
| tap.onTap = () { log.add('tap'); }; |
| |
| void test(Offset delta) { |
| const Offset origin = Offset(10.0, 10.0); |
| final TestPointer pointer = TestPointer(5); |
| final PointerDownEvent down = pointer.down(origin); |
| captain.addPointer(down); |
| horizontalDrag.addPointer(down); |
| verticalDrag.addPointer(down); |
| tap.addPointer(down); |
| expect(log, isEmpty); |
| tester.closeArena(5); |
| expect(log, isEmpty); |
| tester.route(down); |
| expect(log, isEmpty); |
| tester.route(pointer.move(origin + delta)); |
| tester.route(pointer.up()); |
| } |
| |
| test(Offset.zero); |
| expect(log, <String>['tap']); |
| log.clear(); |
| |
| test(const Offset(0.0, 30.0)); |
| expect(log, <String>['captain accepted gesture']); |
| log.clear(); |
| |
| horizontalDrag.dispose(); |
| verticalDrag.dispose(); |
| tap.dispose(); |
| captain.dispose(); |
| }); |
| } |
| |
| typedef GestureAcceptedCallback = void Function(); |
| |
| class PassiveGestureRecognizer extends OneSequenceGestureRecognizer { |
| GestureAcceptedCallback onGestureAccepted; |
| |
| @override |
| void addPointer(PointerDownEvent event) { |
| startTrackingPointer(event.pointer); |
| } |
| |
| @override |
| String get debugDescription => 'passive'; |
| |
| @override |
| void didStopTrackingLastPointer(int pointer) { |
| resolve(GestureDisposition.rejected); |
| } |
| |
| @override |
| void handleEvent(PointerEvent event) { |
| if (event is PointerUpEvent || event is PointerCancelEvent) { |
| stopTrackingPointer(event.pointer); |
| } |
| } |
| |
| @override |
| void acceptGesture(int pointer) { |
| if (onGestureAccepted != null) { |
| onGestureAccepted(); |
| } |
| } |
| |
| @override |
| void rejectGesture(int pointer) { } |
| } |