/*

 * This file is part of the DOM implementation for KDE.

 *

 * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)

 *

 * 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. 

 *

 */

#ifndef EventTarget_h

#define EventTarget_h

#include <wtf/Forward.h>

namespace WebCore {

    class AtomicString;

    class Event;

    class EventListener;

    class EventTargetNode;

    class SVGElementInstance;

    class XMLHttpRequest;

    typedef int ExceptionCode;

    class EventTarget {

    public:

        virtual EventTargetNode* toNode();

        virtual XMLHttpRequest* toXMLHttpRequest();

#if ENABLE(SVG)

        virtual SVGElementInstance* toSVGElementInstance();

#endif

        virtual void addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture) = 0;

        virtual void removeEventListener(const AtomicString& eventType, EventListener*, bool useCapture) = 0;

        virtual bool dispatchEvent(PassRefPtr<Event>, ExceptionCode&, bool tempEvent = false) = 0;

        void ref() { refEventTarget(); }

        void deref() { derefEventTarget(); }

    protected:

        virtual ~EventTarget();

    private:

        virtual void refEventTarget() = 0;

        virtual void derefEventTarget() = 0;

    };

}

#endif