/*
 * Copyright (C) 2010 Google Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 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
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include "config.h"
#include "core/events/EventContext.h"

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

namespace WebCore {

EventContext::EventContext(PassRefPtr<Node> node, PassRefPtr<EventTarget> currentTarget)
    : m_node(node)
    , m_currentTarget(currentTarget)
{
    ASSERT(m_node);
}

EventContext::~EventContext()
{
}

void EventContext::adoptEventPath(Vector<RefPtr<Node> >& nodes)
{
    m_eventPath = StaticNodeList::adopt(nodes);
}

void EventContext::handleLocalEvents(Event* event) const
{
    if (m_touchEventContext) {
        m_touchEventContext->handleLocalEvents(event);
    } else if (m_relatedTarget && event->isMouseEvent()) {
        toMouseEvent(event)->setRelatedTarget(m_relatedTarget.get());
    } else if (m_relatedTarget && event->isFocusEvent()) {
        toFocusEvent(event)->setRelatedTarget(m_relatedTarget.get());
    }
    event->setTarget(m_target);
    event->setCurrentTarget(m_currentTarget.get());
    m_node->handleLocalEvents(event);
}

TouchEventContext* EventContext::ensureTouchEventContext()
{
    if (!m_touchEventContext)
        m_touchEventContext = TouchEventContext::create();
    return m_touchEventContext.get();
}

PassRefPtr<TouchEventContext> TouchEventContext::create()
{
    return adoptRef(new TouchEventContext);
}

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

TouchEventContext::~TouchEventContext()
{
}

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);
}

}