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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 "config.h"
     28 
     29 #include "core/dom/TouchEvent.h"
     30 
     31 #include "core/dom/EventDispatcher.h"
     32 #include "core/dom/EventNames.h"
     33 #include "core/dom/EventRetargeter.h"
     34 #include "core/dom/TouchList.h"
     35 
     36 namespace WebCore {
     37 
     38 TouchEvent::TouchEvent()
     39 {
     40     ScriptWrappable::init(this);
     41 }
     42 
     43 TouchEvent::TouchEvent(TouchList* touches, TouchList* targetTouches,
     44         TouchList* changedTouches, const AtomicString& type,
     45         PassRefPtr<AbstractView> view, int screenX, int screenY, int pageX, int pageY,
     46         bool ctrlKey, bool altKey, bool shiftKey, bool metaKey)
     47     : MouseRelatedEvent(type, true, true, view, 0, IntPoint(screenX, screenY),
     48                         IntPoint(pageX, pageY),
     49                         IntPoint(0, 0),
     50                         ctrlKey, altKey, shiftKey, metaKey)
     51     , m_touches(touches)
     52     , m_targetTouches(targetTouches)
     53     , m_changedTouches(changedTouches)
     54 {
     55     ScriptWrappable::init(this);
     56 }
     57 
     58 TouchEvent::~TouchEvent()
     59 {
     60 }
     61 
     62 void TouchEvent::initTouchEvent(TouchList* touches, TouchList* targetTouches,
     63         TouchList* changedTouches, const AtomicString& type,
     64         PassRefPtr<AbstractView> view, int screenX, int screenY, int clientX, int clientY,
     65         bool ctrlKey, bool altKey, bool shiftKey, bool metaKey)
     66 {
     67     if (dispatched())
     68         return;
     69 
     70     initUIEvent(type, true, true, view, 0);
     71 
     72     m_touches = touches;
     73     m_targetTouches = targetTouches;
     74     m_changedTouches = changedTouches;
     75     m_screenLocation = IntPoint(screenX, screenY);
     76     m_ctrlKey = ctrlKey;
     77     m_altKey = altKey;
     78     m_shiftKey = shiftKey;
     79     m_metaKey = metaKey;
     80     initCoordinates(IntPoint(clientX, clientY));
     81 }
     82 
     83 const AtomicString& TouchEvent::interfaceName() const
     84 {
     85     return eventNames().interfaceForTouchEvent;
     86 }
     87 
     88 bool TouchEvent::isTouchEvent() const
     89 {
     90     return true;
     91 }
     92 
     93 PassRefPtr<TouchEventDispatchMediator> TouchEventDispatchMediator::create(PassRefPtr<TouchEvent> touchEvent)
     94 {
     95     return adoptRef(new TouchEventDispatchMediator(touchEvent));
     96 }
     97 
     98 TouchEventDispatchMediator::TouchEventDispatchMediator(PassRefPtr<TouchEvent> touchEvent)
     99     : EventDispatchMediator(touchEvent)
    100 {
    101 }
    102 
    103 TouchEvent* TouchEventDispatchMediator::event() const
    104 {
    105     return static_cast<TouchEvent*>(EventDispatchMediator::event());
    106 }
    107 
    108 bool TouchEventDispatchMediator::dispatchEvent(EventDispatcher* dispatcher) const
    109 {
    110     EventRetargeter::adjustForTouchEvent(dispatcher->node(), *event());
    111     return dispatcher->dispatch();
    112 }
    113 
    114 } // namespace WebCore
    115