/*

 * Copyright (C) 2007 Apple 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. 

 */

#ifndef DragData_h

#define DragData_h

#include "ClipboardAccessPolicy.h"

#include "Color.h"

#include "DragActions.h"

#include "IntPoint.h"

#include <wtf/Forward.h>

#include <wtf/Vector.h>

#if PLATFORM(MAC)

#ifdef __OBJC__ 

#import <Foundation/Foundation.h>

#import <AppKit/NSDragging.h>

typedef id <NSDraggingInfo> DragDataRef;

#else

typedef void* DragDataRef;

#endif

#elif PLATFORM(QT)

class QMimeData;

typedef const QMimeData* DragDataRef;

#elif PLATFORM(WIN)

typedef struct IDataObject* DragDataRef;

#elif PLATFORM(GTK)

// FIXME: this should probably be something gdk-specific

typedef void* DragDataRef;

#elif PLATFORM(SYMBIAN)

typedef void* DragDataRef;

#endif

namespace WebCore {

    class Clipboard;

    class Document;

    class DocumentFragment;

    class KURL;

#if PLATFORM(MAC)

    class PasteboardHelper;

#endif

    class DragData {

    public:

#if PLATFORM(MAC)

        //FIXME: In the future the WebKit functions provided by the helper class should be moved into WebCore, 

        //after which this constructor should be removed

        DragData(DragDataRef data, const IntPoint& clientPosition, const IntPoint& globalPosition,

                 DragOperation operation, PasteboardHelper*);

#else

        //clientPosition is taken to be the position of the drag event within the target window, with (0,0) at the top left

        DragData(DragDataRef data, const IntPoint& clientPosition, const IntPoint& globalPosition, DragOperation operation);

#endif

        const IntPoint& clientPosition() const { return m_clientPosition; }

        const IntPoint& globalPosition() const { return m_globalPosition; }

        DragDataRef platformData() const { return m_platformDragData; }

        DragOperation draggingSourceOperationMask() const { return m_draggingSourceOperationMask; }

        Clipboard* createClipboard(ClipboardAccessPolicy) const;

        bool containsURL() const;

        bool containsPlainText() const;

        bool containsCompatibleContent() const;

        String asURL(String* title = 0) const;

        String asPlainText() const;

        void asFilenames(Vector<String>&) const;

        Color asColor() const;

        PassRefPtr<DocumentFragment> asFragment(Document*) const;

        bool canSmartReplace() const;

        bool containsColor() const;

        bool containsFiles() const;

    private:

        IntPoint m_clientPosition;

        IntPoint m_globalPosition;

        DragDataRef m_platformDragData;

        DragOperation m_draggingSourceOperationMask;

#if PLATFORM(MAC)

        PasteboardHelper* m_pasteboardHelper;

#endif

};

} //namespace WebCore

#endif //!DragData_h