/*

 * (C) 1999-2003 Lars Knoll (knoll@kde.org)

 * Copyright (C) 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 CSSImageValue_h

#define CSSImageValue_h

#include "CSSPrimitiveValue.h"

#include "CachedResourceClient.h"

#include <wtf/RefPtr.h>

namespace WebCore {

class DocLoader;

class StyleCachedImage;

class CSSImageValue : public CSSPrimitiveValue, private CachedResourceClient {

public:

    static PassRefPtr<CSSImageValue> create() { return adoptRef(new CSSImageValue); }

    static PassRefPtr<CSSImageValue> create(const String& url) { return adoptRef(new CSSImageValue(url)); }

    virtual ~CSSImageValue();

    virtual StyleCachedImage* cachedImage(DocLoader*);

    virtual bool isImageValue() const { return true; }

protected:

    CSSImageValue(const String& url);

    StyleCachedImage* cachedImage(DocLoader*, const String& url);

    String cachedImageURL();

    void clearCachedImage();

private:

    CSSImageValue();

    RefPtr<StyleCachedImage> m_image;

    bool m_accessedImage;

};

} // namespace WebCore

#endif // CSSImageValue_h