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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 #ifndef TouchEvent_h
     28 #define TouchEvent_h
     29 
     30 #include "core/dom/EventDispatchMediator.h"
     31 #include "core/dom/MouseRelatedEvent.h"
     32 #include "core/dom/TouchList.h"
     33 
     34 namespace WebCore {
     35 
     36 class TouchEvent : public MouseRelatedEvent {
     37 public:
     38     virtual ~TouchEvent();
     39 
     40     static PassRefPtr<TouchEvent> create()
     41     {
     42         return adoptRef(new TouchEvent);
     43     }
     44     static PassRefPtr<TouchEvent> create(TouchList* touches,
     45             TouchList* targetTouches, TouchList* changedTouches,
     46             const AtomicString& type, PassRefPtr<AbstractView> view,
     47             int screenX, int screenY, int pageX, int pageY,
     48             bool ctrlKey, bool altKey, bool shiftKey, bool metaKey)
     49     {
     50         return adoptRef(new TouchEvent(touches, targetTouches, changedTouches,
     51                 type, view, screenX, screenY, pageX, pageY,
     52                 ctrlKey, altKey, shiftKey, metaKey));
     53     }
     54 
     55     void initTouchEvent(TouchList* touches, TouchList* targetTouches,
     56             TouchList* changedTouches, const AtomicString& type,
     57             PassRefPtr<AbstractView> view, int screenX, int screenY,
     58             int clientX, int clientY,
     59             bool ctrlKey, bool altKey, bool shiftKey, bool metaKey);
     60 
     61     TouchList* touches() const { return m_touches.get(); }
     62     TouchList* targetTouches() const { return m_targetTouches.get(); }
     63     TouchList* changedTouches() const { return m_changedTouches.get(); }
     64 
     65     void setTouches(PassRefPtr<TouchList> touches) { m_touches = touches; }
     66     void setTargetTouches(PassRefPtr<TouchList> targetTouches) { m_targetTouches = targetTouches; }
     67     void setChangedTouches(PassRefPtr<TouchList> changedTouches) { m_changedTouches = changedTouches; }
     68 
     69     virtual bool isTouchEvent() const OVERRIDE;
     70 
     71     virtual const AtomicString& interfaceName() const;
     72 
     73 private:
     74     TouchEvent();
     75     TouchEvent(TouchList* touches, TouchList* targetTouches,
     76             TouchList* changedTouches, const AtomicString& type,
     77             PassRefPtr<AbstractView>, int screenX, int screenY, int pageX,
     78             int pageY,
     79             bool ctrlKey, bool altKey, bool shiftKey, bool metaKey);
     80 
     81     RefPtr<TouchList> m_touches;
     82     RefPtr<TouchList> m_targetTouches;
     83     RefPtr<TouchList> m_changedTouches;
     84 };
     85 
     86 class TouchEventDispatchMediator : public EventDispatchMediator {
     87 public:
     88     static PassRefPtr<TouchEventDispatchMediator> create(PassRefPtr<TouchEvent>);
     89 
     90 private:
     91     explicit TouchEventDispatchMediator(PassRefPtr<TouchEvent>);
     92     TouchEvent* event() const;
     93     virtual bool dispatchEvent(EventDispatcher*) const OVERRIDE;
     94 };
     95 
     96 inline TouchEvent* toTouchEvent(Event* event)
     97 {
     98     ASSERT(event && event->isTouchEvent());
     99     return static_cast<TouchEvent*>(event);
    100 }
    101 
    102 } // namespace WebCore
    103 
    104 #endif // TouchEvent_h
    105