third_party/WebKit/Source/core/events/TouchEventContext.cpp

/*
 * Copyright (C) 2014 Google Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 1. Redistributions of source code must retain the above copyright
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 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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#include "core/events/TouchEventContext.h"

#include "core/dom/TouchList.h"
#include "core/events/Event.h"
#include "core/events/TouchEvent.h"

namespace blink {

TouchEventContext* TouchEventContext::create()
{
    return new TouchEventContext;
}

TouchEventContext::TouchEventContext()
    : m_touches(TouchList::create())
    , m_targetTouches(TouchList::create())
    , m_changedTouches(TouchList::create())
{
}

void TouchEventContext::handleLocalEvents(Event& event) const
{
    ASSERT(event.isTouchEvent());
    TouchEvent& touchEvent = toTouchEvent(event);
    touchEvent.setTouches(m_touches);
    touchEvent.setTargetTouches(m_targetTouches);
    touchEvent.setChangedTouches(m_changedTouches);
}

DEFINE_TRACE(TouchEventContext)
{
    visitor->trace(m_touches);
    visitor->trace(m_targetTouches);
    visitor->trace(m_changedTouches);
}

} // namespace blink