/*

 * Copyright (C) 2001 Peter Kelly (pmk@post.com)

 * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)

 * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)

 * Copyright (C) 2003, 2005, 2006, 2008 Apple Inc. All rights reserved.

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 */

#include "config.h"

#include "Event.h"

#include "AtomicString.h"

#include "UserGestureIndicator.h"

#include <wtf/CurrentTime.h>

namespace WebCore {

Event::Event()

    : m_canBubble(false)

    , m_cancelable(false)

    , m_propagationStopped(false)

    , m_immediatePropagationStopped(false)

    , m_defaultPrevented(false)

    , m_defaultHandled(false)

    , m_cancelBubble(false)

    , m_eventPhase(0)

    , m_currentTarget(0)

    , m_createTime(static_cast<DOMTimeStamp>(currentTime() * 1000.0))

{

}

Event::Event(const AtomicString& eventType, bool canBubbleArg, bool cancelableArg)

    : m_type(eventType)

    , m_canBubble(canBubbleArg)

    , m_cancelable(cancelableArg)

    , m_propagationStopped(false)

    , m_immediatePropagationStopped(false)

    , m_defaultPrevented(false)

    , m_defaultHandled(false)

    , m_cancelBubble(false)

    , m_eventPhase(0)

    , m_currentTarget(0)

    , m_createTime(static_cast<DOMTimeStamp>(currentTime() * 1000.0))

{

}

Event::~Event()

{

}

void Event::initEvent(const AtomicString& eventTypeArg, bool canBubbleArg, bool cancelableArg)

{

    if (dispatched())

        return;

    m_type = eventTypeArg;

    m_canBubble = canBubbleArg;

    m_cancelable = cancelableArg;

}

bool Event::isCustomEvent() const

{

    return false;

}

bool Event::isUIEvent() const

{

    return false;

}

bool Event::isMouseEvent() const

{

    return false;

}

bool Event::isMutationEvent() const

{

    return false;

}

bool Event::isKeyboardEvent() const

{

    return false;

}

bool Event::isTextEvent() const

{

    return false;

}

bool Event::isCompositionEvent() const

{

    return false;

}

bool Event::isDragEvent() const

{

    return false;

}

bool Event::isClipboardEvent() const

{

    return false;

}

bool Event::isWheelEvent() const

{

    return false;

}

bool Event::isMessageEvent() const

{

    return false;

}

bool Event::isBeforeTextInsertedEvent() const

{

    return false;

}

bool Event::isOverflowEvent() const

{

    return false;

}

bool Event::isPageTransitionEvent() const

{

    return false;

}

bool Event::isPopStateEvent() const

{

    return false;

}

bool Event::isProgressEvent() const

{

    return false;

}

bool Event::isWebKitAnimationEvent() const

{

    return false;

}

bool Event::isWebKitTransitionEvent() const

{

    return false;

}

bool Event::isXMLHttpRequestProgressEvent() const

{

    return false;

}

bool Event::isBeforeLoadEvent() const

{

    return false;

}

#if ENABLE(SVG)

bool Event::isSVGZoomEvent() const

{

    return false;

}

#endif

#if ENABLE(DOM_STORAGE)

bool Event::isStorageEvent() const

{

    return false;

}

#endif

#if ENABLE(INDEXED_DATABASE)

bool Event::isIDBErrorEvent() const

{

    return false;

}

bool Event::isIDBSuccessEvent() const

{

    return false;

}

#endif

#if ENABLE(WORKERS)

bool Event::isErrorEvent() const

{

    return false;

}

#endif

#if ENABLE(TOUCH_EVENTS)

bool Event::isTouchEvent() const

{

    return false;

}

#endif

#if ENABLE(DEVICE_ORIENTATION)

bool Event::isDeviceOrientationEvent() const

{

    return false;

}

#endif

#if ENABLE(TRANSFORMACTION_EVENTS)

bool Event::isTransformActionEvent() const

{

    return false;

}

#endif

bool Event::fromUserGesture()

{

    if (!UserGestureIndicator::processingUserGesture())

        return false;

    const AtomicString& type = this->type();

    return

        // mouse events

        type == eventNames().clickEvent || type == eventNames().mousedownEvent 

        || type == eventNames().mouseupEvent || type == eventNames().dblclickEvent 

        // keyboard events

        || type == eventNames().keydownEvent || type == eventNames().keypressEvent

        || type == eventNames().keyupEvent

#if ENABLE(TOUCH_EVENTS)

        // touch events

        || type == eventNames().touchstartEvent || type == eventNames().touchmoveEvent

        || type == eventNames().touchendEvent || type == eventNames().touchcancelEvent

#endif

#if ENABLE(TRANSFORMACTION_EVENTS)

        // transformaction events

        || type == eventNames().transformactionstartEvent

        || type == eventNames().transformactionupdateEvent

        || type == eventNames().transformactionendEvent

#endif

        // other accepted events

        || type == eventNames().selectEvent || type == eventNames().changeEvent

        || type == eventNames().focusEvent || type == eventNames().blurEvent

        || type == eventNames().submitEvent;

}

bool Event::storesResultAsString() const

{

    return false;

}

void Event::storeResult(const String&)

{

}

void Event::setTarget(PassRefPtr<EventTarget> target)

{

    m_target = target;

    if (m_target)

        receivedTarget();

}

void Event::receivedTarget()

{

}

void Event::setUnderlyingEvent(PassRefPtr<Event> ue)

{

    // Prohibit creation of a cycle -- just do nothing in that case.

    for (Event* e = ue.get(); e; e = e->underlyingEvent())

        if (e == this)

            return;

    m_underlyingEvent = ue;

}

const AtomicString& Event::aliasedType() const

{

    if (type() == eventNames().focusinEvent)

        return eventNames().DOMFocusInEvent;

    if (type() == eventNames().focusoutEvent)

        return eventNames().DOMFocusOutEvent;

    if (type() == eventNames().DOMFocusInEvent)

        return eventNames().focusinEvent;

    if (type() == eventNames().DOMFocusOutEvent)

        return eventNames().focusoutEvent;

    ASSERT_NOT_REACHED();

    return type();

}

bool Event::hasAliasedType() const

{

    return type() == eventNames().focusinEvent || type() == eventNames().focusoutEvent ||

           type() == eventNames().DOMFocusInEvent || type() == eventNames().DOMFocusOutEvent;

}

} // namespace WebCore