/*

 *  This file is part of the KDE libraries

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

 *  Copyright (C) 2003 Apple Computer, Inc.

 *

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

 *  modify it under the terms of the GNU Lesser 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

 *  Lesser General Public License for more details.

 *

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

 *  License along with this library; if not, write to the Free Software

 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA

 */

#ifndef kjs_events_h

#define kjs_events_h

#include "EventListener.h"

#include "PlatformString.h"

#include "kjs_dom.h"

#include "kjs_html.h"

namespace KJS {

    class Window;

}

namespace WebCore {

    class Clipboard;

    class Event;

    class JSAbstractEventListener : public EventListener {

    public:

        JSAbstractEventListener(bool html = false);

        virtual void handleEvent(Event*, bool isWindowEvent);

        virtual bool isHTMLEventListener() const;

        virtual KJS::JSObject* listenerObj() const = 0;

        virtual KJS::Window* windowObj() const = 0;

    private:

        bool m_html;

    };

    class JSUnprotectedEventListener : public JSAbstractEventListener {

    public:

        JSUnprotectedEventListener(KJS::JSObject* listener, KJS::Window*, bool html = false);

        virtual ~JSUnprotectedEventListener();

        virtual KJS::JSObject* listenerObj() const;

        virtual KJS::Window* windowObj() const;

        void clearWindowObj();

        virtual void mark();

    private:

        KJS::JSObject* m_listener;

        KJS::Window* m_win;

    };

    class JSEventListener : public JSAbstractEventListener {

    public:

        JSEventListener(KJS::JSObject* listener, KJS::Window*, bool html = false);

        virtual ~JSEventListener();

        virtual KJS::JSObject* listenerObj() const;

        virtual KJS::Window* windowObj() const;

        void clearWindowObj();

    protected:

        mutable KJS::ProtectedPtr<KJS::JSObject> m_listener;

    private:

        KJS::ProtectedPtr<KJS::Window> m_win;

    };

    class JSLazyEventListener : public JSEventListener {

    public:

        JSLazyEventListener(const String& functionName, const String& code, KJS::Window*, Node*, int lineNumber = 0);

        virtual KJS::JSObject* listenerObj() const;

    private:

        virtual KJS::JSValue* eventParameterName() const;

        void parseCode() const;

        mutable String m_functionName;

        mutable String m_code;

        mutable bool m_parsed;

        int m_lineNumber;

        Node* m_originalNode;

    };

    KJS::JSValue* getNodeEventListener(Node*, const AtomicString& eventType);

    class JSClipboard : public KJS::DOMObject {

    public:

        JSClipboard(KJS::ExecState*, Clipboard*);

        virtual ~JSClipboard();

        virtual bool getOwnPropertySlot(KJS::ExecState*, const KJS::Identifier&, KJS::PropertySlot&);

        KJS::JSValue* getValueProperty(KJS::ExecState*, int token) const;

        virtual void put(KJS::ExecState*, const KJS::Identifier&, KJS::JSValue*, int attr = KJS::None);

        void putValueProperty(KJS::ExecState*, int token, KJS::JSValue*, int attr);

        virtual const KJS::ClassInfo* classInfo() const { return &info; }

        static const KJS::ClassInfo info;

        enum { ClearData, GetData, SetData, Types, SetDragImage, DropEffect, EffectAllowed };

        Clipboard* impl() const { return m_impl.get(); }

    private:

        RefPtr<Clipboard> m_impl;

    };

    KJS::JSValue* toJS(KJS::ExecState*, Clipboard*);

    Clipboard* toClipboard(KJS::JSValue*);

} // namespace WebCore

#endif // kjs_events_h