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#ifndef GestureEvent_h
27#define GestureEvent_h
28
29#if ENABLE(GESTURE_EVENTS)
30
31#include "EventDispatcher.h"
32#include "EventNames.h"
33#include "Frame.h"
34#include "FrameView.h"
35#include "MouseRelatedEvent.h"
36#include "PlatformEvent.h"
37#include "PlatformGestureEvent.h"
38
39namespace WebCore {
40
41class GestureEvent : public MouseRelatedEvent {
42public:
43    virtual ~GestureEvent() { }
44
45    static PassRefPtr<GestureEvent> create();
46    static PassRefPtr<GestureEvent> create(PassRefPtr<AbstractView>, const PlatformGestureEvent&);
47
48    void initGestureEvent(const AtomicString& type, PassRefPtr<AbstractView>, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, float deltaX, float deltaY);
49
50    virtual const AtomicString& interfaceName() const;
51
52    float deltaX() const { return m_deltaX; }
53    float deltaY() const { return m_deltaY; }
54
55private:
56    GestureEvent();
57    GestureEvent(const AtomicString& type, PassRefPtr<AbstractView>, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, float deltaX, float deltaY);
58
59    float m_deltaX;
60    float m_deltaY;
61};
62
63class GestureEventDispatchMediator : public EventDispatchMediator {
64public:
65    static PassRefPtr<GestureEventDispatchMediator> create(PassRefPtr<GestureEvent> gestureEvent)
66    {
67        return adoptRef(new GestureEventDispatchMediator(gestureEvent));
68    }
69
70private:
71    explicit GestureEventDispatchMediator(PassRefPtr<GestureEvent>);
72
73    GestureEvent* event() const;
74
75    virtual bool dispatchEvent(EventDispatcher*) const OVERRIDE;
76};
77
78} // namespace WebCore
79
80#endif // ENABLE(GESTURE_EVENTS)
81
82#endif // GestureEvent_h
83