/*

 * Copyright (C) 2006, 2007, 2008, 2009 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,

 * 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 ImageDocument_h

#define ImageDocument_h

#include "HTMLDocument.h"

namespace WebCore {

class ImageDocumentElement;

class ImageDocument : public HTMLDocument {

public:

    static PassRefPtr<ImageDocument> create(Frame* frame, const KURL& url)

    {

        return adoptRef(new ImageDocument(frame, url));

    }

    CachedImage* cachedImage();

    ImageDocumentElement* imageElement() const { return m_imageElement; }

    void disconnectImageElement() { m_imageElement = 0; }

    void windowSizeChanged();

    void imageChanged();

    void imageClicked(int x, int y);

private:

    ImageDocument(Frame*, const KURL&);

    virtual DocumentParser* createParser();

    virtual bool isImageDocument() const { return true; }

    void createDocumentStructure();

    void resizeImageToFit();

    void restoreImageSize();

    bool imageFitsInWindow() const;

    bool shouldShrinkToFit() const;

    float scale() const;

    ImageDocumentElement* m_imageElement;

    // Whether enough of the image has been loaded to determine its size

    bool m_imageSizeIsKnown;

    // Whether the image is shrunk to fit or not

    bool m_didShrinkImage;

    // Whether the image should be shrunk or not

    bool m_shouldShrinkImage;

};

}

#endif // ImageDocument_h