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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/events/EventDispatchMediator.h"
     31 #include "core/events/MouseRelatedEvent.h"
     32 #include "core/dom/TouchList.h"
     33 
     34 namespace blink {
     35 
     36 class TouchEvent FINAL : public UIEventWithKeyState {
     37     DEFINE_WRAPPERTYPEINFO();
     38 public:
     39     virtual ~TouchEvent();
     40 
     41     static PassRefPtrWillBeRawPtr<TouchEvent> create()
     42     {
     43         return adoptRefWillBeNoop(new TouchEvent);
     44     }
     45     static PassRefPtrWillBeRawPtr<TouchEvent> create(TouchList* touches,
     46         TouchList* targetTouches, TouchList* changedTouches,
     47         const AtomicString& type, PassRefPtrWillBeRawPtr<AbstractView> view,
     48         bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool cancelable)
     49     {
     50         return adoptRefWillBeNoop(new TouchEvent(touches, targetTouches, changedTouches, type, view,
     51             ctrlKey, altKey, shiftKey, metaKey, cancelable));
     52     }
     53 
     54     void initTouchEvent(TouchList* touches, TouchList* targetTouches,
     55         TouchList* changedTouches, const AtomicString& type,
     56         PassRefPtrWillBeRawPtr<AbstractView>,
     57         int, int, int, int, // unused useless members of web exposed API
     58         bool ctrlKey, bool altKey, bool shiftKey, bool metaKey);
     59 
     60     TouchList* touches() const { return m_touches.get(); }
     61     TouchList* targetTouches() const { return m_targetTouches.get(); }
     62     TouchList* changedTouches() const { return m_changedTouches.get(); }
     63 
     64     void setTouches(PassRefPtrWillBeRawPtr<TouchList> touches) { m_touches = touches; }
     65     void setTargetTouches(PassRefPtrWillBeRawPtr<TouchList> targetTouches) { m_targetTouches = targetTouches; }
     66     void setChangedTouches(PassRefPtrWillBeRawPtr<TouchList> changedTouches) { m_changedTouches = changedTouches; }
     67 
     68     virtual bool isTouchEvent() const OVERRIDE;
     69 
     70     virtual const AtomicString& interfaceName() const OVERRIDE;
     71 
     72     virtual void preventDefault() OVERRIDE;
     73 
     74     virtual void trace(Visitor*) OVERRIDE;
     75 
     76 private:
     77     TouchEvent();
     78     TouchEvent(TouchList* touches, TouchList* targetTouches,
     79             TouchList* changedTouches, const AtomicString& type,
     80             PassRefPtrWillBeRawPtr<AbstractView>,
     81             bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool cancelable);
     82 
     83     RefPtrWillBeMember<TouchList> m_touches;
     84     RefPtrWillBeMember<TouchList> m_targetTouches;
     85     RefPtrWillBeMember<TouchList> m_changedTouches;
     86 };
     87 
     88 class TouchEventDispatchMediator FINAL : public EventDispatchMediator {
     89 public:
     90     static PassRefPtrWillBeRawPtr<TouchEventDispatchMediator> create(PassRefPtrWillBeRawPtr<TouchEvent>);
     91 
     92 private:
     93     explicit TouchEventDispatchMediator(PassRefPtrWillBeRawPtr<TouchEvent>);
     94     TouchEvent* event() const;
     95     virtual bool dispatchEvent(EventDispatcher*) const OVERRIDE;
     96 };
     97 
     98 DEFINE_EVENT_TYPE_CASTS(TouchEvent);
     99 
    100 } // namespace blink
    101 
    102 #endif // TouchEvent_h
    103