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1 /* | |
2 * Copyright 2008, The Android Open Source Project | |
3 * Copyright (C) 2012 Research In Motion Limited. All rights reserved. | |
4 * | |
5 * Redistribution and use in source and binary forms, with or without | |
6 * modification, are permitted provided that the following conditions | |
7 * are met: | |
8 * * Redistributions of source code must retain the above copyright | |
9 * notice, this list of conditions and the following disclaimer. | |
10 * * Redistributions in binary form must reproduce the above copyright | |
11 * notice, this list of conditions and the following disclaimer in the | |
12 * documentation and/or other materials provided with the distribution. | |
13 * | |
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY | |
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
25 */ | |
26 | |
27 #include "sky/engine/config.h" | |
28 | |
29 #include "sky/engine/core/events/TouchEvent.h" | |
30 | |
31 #include "sky/engine/core/events/EventDispatcher.h" | |
32 #include "sky/engine/core/frame/FrameConsole.h" | |
33 #include "sky/engine/core/frame/LocalFrame.h" | |
34 #include "sky/engine/core/inspector/ConsoleMessage.h" | |
35 | |
36 namespace blink { | |
37 | |
38 TouchEvent::TouchEvent() | |
39 { | |
40 } | |
41 | |
42 TouchEvent::TouchEvent(TouchList* touches, TouchList* targetTouches, | |
43 TouchList* changedTouches, const AtomicString& type, | |
44 PassRefPtr<AbstractView> view, | |
45 bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool cancelable) | |
46 : UIEventWithKeyState(type, true, cancelable, view, 0, | |
47 ctrlKey, altKey, shiftKey, metaKey) | |
48 , m_touches(touches) | |
49 , m_targetTouches(targetTouches) | |
50 , m_changedTouches(changedTouches) | |
51 { | |
52 } | |
53 | |
54 TouchEvent::~TouchEvent() | |
55 { | |
56 } | |
57 | |
58 void TouchEvent::initTouchEvent(TouchList* touches, TouchList* targetTouches, | |
59 TouchList* changedTouches, const AtomicString& type, | |
60 PassRefPtr<AbstractView> view, | |
61 int, int, int, int, | |
62 bool ctrlKey, bool altKey, bool shiftKey, bool metaKey) | |
63 { | |
64 if (dispatched()) | |
65 return; | |
66 | |
67 bool cancelable = true; | |
68 if (type == EventTypeNames::touchcancel) | |
69 cancelable = false; | |
70 | |
71 initUIEvent(type, true, cancelable, view, 0); | |
72 | |
73 m_touches = touches; | |
74 m_targetTouches = targetTouches; | |
75 m_changedTouches = changedTouches; | |
76 m_ctrlKey = ctrlKey; | |
77 m_altKey = altKey; | |
78 m_shiftKey = shiftKey; | |
79 m_metaKey = metaKey; | |
80 } | |
81 | |
82 const AtomicString& TouchEvent::interfaceName() const | |
83 { | |
84 return EventNames::TouchEvent; | |
85 } | |
86 | |
87 bool TouchEvent::isTouchEvent() const | |
88 { | |
89 return true; | |
90 } | |
91 | |
92 void TouchEvent::preventDefault() | |
93 { | |
94 UIEventWithKeyState::preventDefault(); | |
95 | |
96 // A common developer error is to wait too long before attempting to stop | |
97 // scrolling by consuming a touchmove event. Generate a warning if this | |
98 // event is uncancelable. | |
99 if (!cancelable() && view() && view()->frame()) { | |
100 view()->frame()->console().addMessage(ConsoleMessage::create(JSMessageSo
urce, WarningMessageLevel, | |
101 "Ignored attempt to cancel a " + type() + " event with cancelable=fa
lse, for example because scrolling is in progress and cannot be interrupted.")); | |
102 } | |
103 } | |
104 | |
105 PassRefPtr<TouchEventDispatchMediator> TouchEventDispatchMediator::create(PassRe
fPtr<TouchEvent> touchEvent) | |
106 { | |
107 return adoptRef(new TouchEventDispatchMediator(touchEvent)); | |
108 } | |
109 | |
110 TouchEventDispatchMediator::TouchEventDispatchMediator(PassRefPtr<TouchEvent> to
uchEvent) | |
111 : EventDispatchMediator(touchEvent) | |
112 { | |
113 } | |
114 | |
115 TouchEvent* TouchEventDispatchMediator::event() const | |
116 { | |
117 return toTouchEvent(EventDispatchMediator::event()); | |
118 } | |
119 | |
120 bool TouchEventDispatchMediator::dispatchEvent(EventDispatcher* dispatcher) cons
t | |
121 { | |
122 event()->eventPath().adjustForTouchEvent(dispatcher->node(), *event()); | |
123 return dispatcher->dispatch(); | |
124 } | |
125 | |
126 } // namespace blink | |
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