/*

 * Copyright (C) 2004, 2006 Apple Computer, 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. 

 */

// An implementation of the clipboard class from IE that talks to the Cocoa Pasteboard

#ifndef ClipboardMac_h

#define ClipboardMac_h

#include "IntPoint.h"

#include "Clipboard.h"

#include "ClipboardAccessPolicy.h"

#include "CachedResourceClient.h"

#include <wtf/RetainPtr.h>

#ifdef __OBJC__

@class NSImage;

@class NSPasteboard;

#else

class NSImage;

class NSPasteboard;

typedef unsigned NSDragOperation;

#endif

namespace WebCore {

class Frame;

class ClipboardMac : public Clipboard, public CachedResourceClient {

public:

    ClipboardMac(bool forDragging, NSPasteboard *, ClipboardAccessPolicy, Frame* = 0);

    virtual ~ClipboardMac();

    void clearData(const String& type);

    void clearAllData();

    String getData(const String& type, bool& success) const;

    bool setData(const String& type, const String& data);

    virtual bool hasData();

    // extensions beyond IE's API

    virtual HashSet<String> types() const;

    void setDragImage(CachedImage*, const IntPoint&);

    void setDragImageElement(Node *, const IntPoint&);

    virtual DragImageRef createDragImage(IntPoint& dragLoc) const;

    virtual void declareAndWriteDragImage(Element*, const KURL&, const String& title, Frame*);

    virtual void writeRange(Range*, Frame* frame);

    virtual void writeURL(const KURL&, const String&, Frame* frame);

    // Methods for getting info in Cocoa's type system

    NSImage *dragNSImage(NSPoint&) const; // loc converted from dragLoc, based on whole image size

    NSPasteboard *pasteboard() { return m_pasteboard.get(); }

private:

    void setDragImage(CachedImage*, Node*, const IntPoint&);

    RetainPtr<NSPasteboard> m_pasteboard;

    int m_changeCount;

    Frame* m_frame; // used on the source side to generate dragging images

};

}

#endif