/*
 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
 * Copyright (C) 2004, 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 StyleSheet_h
#define StyleSheet_h

#include "StyleList.h"
#include "PlatformString.h"
#include <wtf/HashSet.h>

namespace WebCore {

class CachedCSSStyleSheet;
class MediaList;
class Node;

class StyleSheet : public StyleList {
public:
    virtual ~StyleSheet();

    bool disabled() const { return m_disabled; }
    void setDisabled(bool disabled) { m_disabled = disabled; styleSheetChanged(); }

    Node* ownerNode() const { return m_parentNode; }
    StyleSheet *parentStyleSheet() const;
    const String& href() const { return m_strHref; }
    void setHref(const String& href) { m_strHref = href; }
    const String& title() const { return m_strTitle; }
    void setTitle(const String& s) { m_strTitle = s; }
    MediaList* media() const { return m_media.get(); }
    void setMedia(PassRefPtr<MediaList>);

    virtual String type() const = 0;
    virtual bool isLoading() = 0;
    virtual void styleSheetChanged() { }
    virtual void addSubresourceURLStrings(HashSet<String>&, const String& baseURL) const { }

    virtual bool parseString(const String&, bool strict = true) = 0;

protected:
    StyleSheet(Node* ownerNode, const String& href);
    StyleSheet(StyleSheet* parentSheet, const String& href);
    StyleSheet(StyleBase* owner, const String& href);

private:
    virtual bool isStyleSheet() const { return true; }

    Node* m_parentNode;
    String m_strHref;
    String m_strTitle;
    RefPtr<MediaList> m_media;
    bool m_disabled;
};

} // namespace

#endif
