65e4c364942114d6bcb60cba0dcb12f6c5787b7a
[WebKit-https.git] / Source / WebKit / UIProcess / ios / WKSyntheticTapGestureRecognizer.m
1 /*
2  * Copyright (C) 2014 - 2019 Apple Inc. All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23  * THE POSSIBILITY OF SUCH DAMAGE.
24  */
25
26 #import "config.h"
27 #import "WKSyntheticTapGestureRecognizer.h"
28
29 #if PLATFORM(IOS_FAMILY)
30
31 #import <UIKit/UIGestureRecognizerSubclass.h>
32
33 @implementation WKSyntheticTapGestureRecognizer {
34     id _gestureIdentifiedTarget;
35     SEL _gestureIdentifiedAction;
36     id _gestureFailedTarget;
37     SEL _gestureFailedAction;
38     id _resetTarget;
39     SEL _resetAction;
40 }
41
42 - (void)setGestureIdentifiedTarget:(id)target action:(SEL)action
43 {
44     _gestureIdentifiedTarget = target;
45     _gestureIdentifiedAction = action;
46 }
47
48 - (void)setGestureFailedTarget:(id)target action:(SEL)action
49 {
50     _gestureFailedTarget = target;
51     _gestureFailedAction = action;
52 }
53
54 - (void)setResetTarget:(id)target action:(SEL)action
55 {
56     _resetTarget = target;
57     _resetAction = action;
58 }
59
60 - (void)setState:(UIGestureRecognizerState)state
61 {
62     if (state == UIGestureRecognizerStateEnded)
63         [_gestureIdentifiedTarget performSelector:_gestureIdentifiedAction withObject:self];
64     else if (state == UIGestureRecognizerStateFailed)
65         [_gestureFailedTarget performSelector:_gestureFailedAction withObject:self];
66     [super setState:state];
67 }
68
69 - (void)reset
70 {
71     [super reset];
72     [_resetTarget performSelector:_resetAction withObject:self];
73 #if ENABLE(POINTER_EVENTS) 
74     _lastActiveTouchIdentifier = nil;
75 #endif
76 }
77
78 - (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
79 {
80     [super touchesEnded:touches withEvent:event];
81 #if ENABLE(POINTER_EVENTS)
82     if (!_supportingWebTouchEventsGestureRecognizer)
83         return;
84
85     // FIXME: <rdar://problem/48035706>
86     NSMapTable<NSNumber *, UITouch *> *activeTouches = [_supportingWebTouchEventsGestureRecognizer activeTouchesByIdentifier];
87     for (NSNumber *touchIdentifier in activeTouches) {
88         UITouch *touch = [activeTouches objectForKey:touchIdentifier];
89         if ([touch.gestureRecognizers containsObject:self]) {
90             _lastActiveTouchIdentifier = touchIdentifier;
91             break;
92         }
93     }
94 #endif
95 }
96
97 @end
98
99 #endif