1/*
2 * Copyright (C) 2012 Google 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 *  * Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 *  * 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 THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27
28#if ENABLE(GESTURE_EVENTS)
29
30#include "GestureEvent.h"
31
32#include "Element.h"
33#include <wtf/text/AtomicString.h>
34
35namespace WebCore {
36
37PassRefPtr<GestureEvent> GestureEvent::create()
38{
39    return adoptRef(new GestureEvent);
40}
41
42PassRefPtr<GestureEvent> GestureEvent::create(PassRefPtr<AbstractView> view, const PlatformGestureEvent& event)
43{
44    AtomicString eventType;
45    switch (event.type()) {
46    case PlatformEvent::GestureScrollBegin:
47        eventType = eventNames().gesturescrollstartEvent; break;
48    case PlatformEvent::GestureScrollEnd:
49        eventType = eventNames().gesturescrollendEvent; break;
50    case PlatformEvent::GestureScrollUpdate:
51    case PlatformEvent::GestureScrollUpdateWithoutPropagation:
52        eventType = eventNames().gesturescrollupdateEvent; break;
53    case PlatformEvent::GestureTap:
54        eventType = eventNames().gesturetapEvent; break;
55    case PlatformEvent::GestureTapDown:
56        eventType = eventNames().gesturetapdownEvent; break;
57    case PlatformEvent::GestureTwoFingerTap:
58    case PlatformEvent::GestureLongPress:
59    case PlatformEvent::GesturePinchBegin:
60    case PlatformEvent::GesturePinchEnd:
61    case PlatformEvent::GesturePinchUpdate:
62    case PlatformEvent::GestureTapDownCancel:
63    default:
64        return 0;
65    }
66    return adoptRef(new GestureEvent(eventType, view, event.globalPosition().x(), event.globalPosition().y(), event.position().x(), event.position().y(), event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(), event.deltaX(), event.deltaY()));
67}
68
69void GestureEvent::initGestureEvent(const AtomicString& type, PassRefPtr<AbstractView> view, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, float deltaX, float deltaY)
70{
71    if (dispatched())
72        return;
73
74    initUIEvent(type, true, true, view, 0);
75    m_screenLocation = IntPoint(screenX, screenY);
76    m_ctrlKey = ctrlKey;
77    m_altKey = altKey;
78    m_shiftKey = shiftKey;
79    m_metaKey = metaKey;
80
81    m_deltaX = deltaX;
82    m_deltaY = deltaY;
83
84    initCoordinates(IntPoint(clientX, clientY));
85}
86
87const AtomicString& GestureEvent::interfaceName() const
88{
89    DEFINE_STATIC_LOCAL(AtomicString, name, ("TBDInterface"));
90    return name;
91}
92
93GestureEvent::GestureEvent()
94    : m_deltaX(0)
95    , m_deltaY(0)
96{
97}
98
99GestureEvent::GestureEvent(const AtomicString& type, PassRefPtr<AbstractView> view, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, float deltaX, float deltaY)
100    : MouseRelatedEvent(type, true, true, view, 0, IntPoint(screenX, screenY), IntPoint(clientX, clientY),
101#if ENABLE(POINTER_LOCK)
102                        IntPoint(0, 0),
103#endif
104                        ctrlKey, altKey, shiftKey, metaKey)
105    , m_deltaX(deltaX)
106    , m_deltaY(deltaY)
107{
108}
109
110GestureEventDispatchMediator::GestureEventDispatchMediator(PassRefPtr<GestureEvent> gestureEvent)
111    : EventDispatchMediator(gestureEvent)
112{
113}
114
115GestureEvent* GestureEventDispatchMediator::event() const
116{
117    return static_cast<GestureEvent*>(EventDispatchMediator::event());
118}
119
120bool GestureEventDispatchMediator::dispatchEvent(EventDispatcher* dispatcher) const
121{
122    if (isDisabledFormControl(dispatcher->node()))
123        return true;
124
125    dispatcher->dispatch();
126    ASSERT(!event()->defaultPrevented());
127    return event()->defaultHandled() || event()->defaultPrevented();
128}
129
130} // namespace WebCore
131
132#endif // ENABLE(GESTURE_EVENTS)
133