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// 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';
void main() {
TestWidgetsFlutterBinding.ensureInitialized();
testGesture('Should recognize pan', (GestureTester tester) {
final MultiTapGestureRecognizer tap = MultiTapGestureRecognizer(longTapDelay: kLongPressTimeout);
final List<String> log = <String>[];
tap.onTapDown = (int pointer, TapDownDetails details) { log.add('tap-down $pointer'); };
tap.onTapUp = (int pointer, TapUpDetails details) { log.add('tap-up $pointer'); };
tap.onTap = (int pointer) { log.add('tap $pointer'); };
tap.onLongTapDown = (int pointer, TapDownDetails details) { log.add('long-tap-down $pointer'); };
tap.onTapCancel = (int pointer) { log.add('tap-cancel $pointer'); };
final TestPointer pointer5 = TestPointer(5);
final PointerDownEvent down5 = pointer5.down(const Offset(10.0, 10.0));
tap.addPointer(down5);
tester.closeArena(5);
expect(log, <String>['tap-down 5']);
log.clear();
tester.route(down5);
expect(log, isEmpty);
final TestPointer pointer6 = TestPointer(6);
final PointerDownEvent down6 = pointer6.down(const Offset(15.0, 15.0));
tap.addPointer(down6);
tester.closeArena(6);
expect(log, <String>['tap-down 6']);
log.clear();
tester.route(down6);
expect(log, isEmpty);
tester.route(pointer5.move(const Offset(11.0, 12.0)));
expect(log, isEmpty);
tester.route(pointer6.move(const Offset(14.0, 13.0)));
expect(log, isEmpty);
tester.route(pointer5.up());
expect(log, <String>[
'tap-up 5',
'tap 5',
]);
log.clear();
tester.async.elapse(kLongPressTimeout + kPressTimeout);
expect(log, <String>['long-tap-down 6']);
log.clear();
tester.route(pointer6.move(const Offset(40.0, 30.0))); // move more than kTouchSlop from 15.0,15.0
expect(log, <String>['tap-cancel 6']);
log.clear();
tester.route(pointer6.up());
expect(log, isEmpty);
tap.dispose();
});
testGesture('Can filter based on device kind', (GestureTester tester) {
final MultiTapGestureRecognizer tap = MultiTapGestureRecognizer(
longTapDelay: kLongPressTimeout,
supportedDevices: <PointerDeviceKind>{ PointerDeviceKind.touch },
);
final List<String> log = <String>[];
tap.onTapDown = (int pointer, TapDownDetails details) { log.add('tap-down $pointer'); };
tap.onTapUp = (int pointer, TapUpDetails details) { log.add('tap-up $pointer'); };
tap.onTap = (int pointer) { log.add('tap $pointer'); };
tap.onLongTapDown = (int pointer, TapDownDetails details) { log.add('long-tap-down $pointer'); };
tap.onTapCancel = (int pointer) { log.add('tap-cancel $pointer'); };
final TestPointer touchPointer5 = TestPointer(5);
final PointerDownEvent down5 = touchPointer5.down(const Offset(10.0, 10.0));
tap.addPointer(down5);
tester.closeArena(5);
expect(log, <String>['tap-down 5']);
log.clear();
tester.route(down5);
expect(log, isEmpty);
final TestPointer mousePointer6 = TestPointer(6, PointerDeviceKind.mouse);
final PointerDownEvent down6 = mousePointer6.down(const Offset(20.0, 20.0));
tap.addPointer(down6);
tester.closeArena(6);
// Mouse down should be ignored by the recognizer.
expect(log, isEmpty);
final TestPointer touchPointer7 = TestPointer(7);
final PointerDownEvent down7 = touchPointer7.down(const Offset(15.0, 15.0));
tap.addPointer(down7);
tester.closeArena(7);
expect(log, <String>['tap-down 7']);
log.clear();
tester.route(down7);
expect(log, isEmpty);
tester.route(touchPointer5.move(const Offset(11.0, 12.0)));
expect(log, isEmpty);
// Move within the [kTouchSlop] range.
tester.route(mousePointer6.move(const Offset(21.0, 18.0)));
// Move beyond the slop range.
tester.route(mousePointer6.move(const Offset(50.0, 40.0)));
// Neither triggers any event because they originate from a mouse.
expect(log, isEmpty);
tester.route(touchPointer7.move(const Offset(14.0, 13.0)));
expect(log, isEmpty);
tester.route(touchPointer5.up());
expect(log, <String>[
'tap-up 5',
'tap 5',
]);
log.clear();
// Mouse up should be ignored.
tester.route(mousePointer6.up());
expect(log, isEmpty);
tester.async.elapse(kLongPressTimeout + kPressTimeout);
// Only the touch pointer (7) triggers a long-tap, not the mouse pointer (6).
expect(log, <String>['long-tap-down 7']);
log.clear();
tester.route(touchPointer7.move(const Offset(40.0, 30.0))); // move more than kTouchSlop from 15.0,15.0
expect(log, <String>['tap-cancel 7']);
log.clear();
tap.dispose();
});
}