/*
 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
 * Copyright (C) 2004, 2006, 2008, 2012 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 "CSSParserMode.h"
#include "URLHash.h"
#include <wtf/Forward.h>
#include <wtf/ListHashSet.h>
#include <wtf/RefCounted.h>

namespace WebCore {

class CSSImportRule;
class MediaList;
class Node;
class StyleSheet;

class StyleSheet : public RefCounted<StyleSheet> {
public:
    virtual ~StyleSheet();

    virtual bool disabled() const = 0;
    virtual void setDisabled(bool) = 0;
    virtual Node* ownerNode() const = 0;
    virtual StyleSheet* parentStyleSheet() const { return 0; }
    virtual String href() const = 0;
    virtual String title() const = 0;
    virtual MediaList* media() const { return 0; }
    virtual String type() const = 0;

    virtual CSSImportRule* ownerRule() const { return 0; }
    virtual void clearOwnerNode() = 0;
    virtual URL baseURL() const = 0;
    virtual bool isLoading() const = 0;
    virtual bool isCSSStyleSheet() const { return false; }
    virtual bool isXSLStyleSheet() const { return false; }
};

#define STYLE_SHEET_TYPE_CASTS(ToClassName) \
    template<typename T> inline ToClassName* to##ToClassName(const RefPtr<T>& styleSheet) { return to##ToClassName(styleSheet.get()); } \
    TYPE_CASTS_BASE(ToClassName, StyleSheet, styleSheet, styleSheet->is##ToClassName(), styleSheet.is##ToClassName())

} // namespace

#endif
