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Side by Side Diff: sky/engine/core/events/TouchEvent.cpp

Issue 868133003: Remove touch events from Sky (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 11 months ago
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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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