/*
 * 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, 2004, 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.
 *
 */

#ifndef MouseEvent_h
#define MouseEvent_h

#include "EventDispatchMediator.h"
#include "MouseRelatedEvent.h"

namespace WebCore {

class Clipboard;
class EventDispatcher;
class PlatformMouseEvent;

struct MouseEventInit : public UIEventInit {
    MouseEventInit();

    int screenX;
    int screenY;
    int clientX;
    int clientY;
    bool ctrlKey;
    bool altKey;
    bool shiftKey;
    bool metaKey;
    unsigned short button;
    RefPtr<EventTarget> relatedTarget;
};

    class MouseEvent : public MouseRelatedEvent {
    public:
        static PassRefPtr<MouseEvent> create()
        {
            return adoptRef(new MouseEvent);
        }

    static PassRefPtr<MouseEvent> create(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<AbstractView>,
            int detail, int screenX, int screenY, int pageX, int pageY,
#if ENABLE(POINTER_LOCK)
            int movementX, int movementY,
#endif
            bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button,
        PassRefPtr<EventTarget> relatedTarget);

    static PassRefPtr<MouseEvent> create(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<AbstractView>,
        int detail, int screenX, int screenY, int pageX, int pageY,
#if ENABLE(POINTER_LOCK)
        int movementX, int movementY,
#endif
        bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button,
        PassRefPtr<EventTarget> relatedTarget, PassRefPtr<Clipboard>, bool isSimulated = false);

        static PassRefPtr<MouseEvent> create(const AtomicString& eventType, PassRefPtr<AbstractView>, const PlatformMouseEvent&, int detail, PassRefPtr<Node> relatedTarget);

    static PassRefPtr<MouseEvent> create(const AtomicString& eventType, const MouseEventInit&);

        virtual ~MouseEvent();

        void initMouseEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<AbstractView>,
                            int detail, int screenX, int screenY, int clientX, int clientY,
                            bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,
                            unsigned short button, PassRefPtr<EventTarget> relatedTarget);

        // WinIE uses 1,4,2 for left/middle/right but not for click (just for mousedown/up, maybe others),
        // but we will match the standard DOM.
        unsigned short button() const { return m_button; }
        bool buttonDown() const { return m_buttonDown; }
        EventTarget* relatedTarget() const { return m_relatedTarget.get(); }
        void setRelatedTarget(PassRefPtr<EventTarget> relatedTarget) { m_relatedTarget = relatedTarget; }

        Clipboard* clipboard() const { return m_clipboard.get(); }

        Node* toElement() const;
        Node* fromElement() const;

        Clipboard* dataTransfer() const { return isDragEvent() ? m_clipboard.get() : 0; }

        virtual const AtomicString& interfaceName() const;

        virtual bool isMouseEvent() const;
        virtual bool isDragEvent() const;
        virtual int which() const;

    virtual PassRefPtr<Event> cloneFor(HTMLIFrameElement*) const OVERRIDE;

    protected:
        MouseEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<AbstractView>,
                   int detail, int screenX, int screenY, int pageX, int pageY,
#if ENABLE(POINTER_LOCK)
                   int movementX, int movementY,
#endif
                   bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button,
        PassRefPtr<EventTarget> relatedTarget, PassRefPtr<Clipboard>, bool isSimulated);

    MouseEvent(const AtomicString& type, const MouseEventInit&);

        MouseEvent();

    private:
        unsigned short m_button;
        bool m_buttonDown;
        RefPtr<EventTarget> m_relatedTarget;
        RefPtr<Clipboard> m_clipboard;
    };

class SimulatedMouseEvent : public MouseEvent {
public:
    static PassRefPtr<SimulatedMouseEvent> create(const AtomicString& eventType, PassRefPtr<AbstractView>, PassRefPtr<Event> underlyingEvent);
    virtual ~SimulatedMouseEvent();

private:
    SimulatedMouseEvent(const AtomicString& eventType, PassRefPtr<AbstractView>, PassRefPtr<Event> underlyingEvent);
};

class MouseEventDispatchMediator : public EventDispatchMediator {
public:
    enum MouseEventType { SyntheticMouseEvent, NonSyntheticMouseEvent};
    static PassRefPtr<MouseEventDispatchMediator> create(PassRefPtr<MouseEvent>, MouseEventType = NonSyntheticMouseEvent);

private:
    explicit MouseEventDispatchMediator(PassRefPtr<MouseEvent>, MouseEventType);
    MouseEvent* event() const;

    virtual bool dispatchEvent(EventDispatcher*) const OVERRIDE;
    bool isSyntheticMouseEvent() const { return m_mouseEventType == SyntheticMouseEvent; }
    MouseEventType m_mouseEventType;
};

inline MouseEvent* toMouseEvent(Event* event)
{
    ASSERT(event && event->isMouseEvent());
    return static_cast<MouseEvent*>(event);
}

} // namespace WebCore

#endif // MouseEvent_h
