/*

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

 * Copyright (C) 1999 Waldo Bastian (bastian@kde.org)

 * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmial.com)

 * 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 StyleBase_h

#define StyleBase_h

#include <wtf/RefCounted.h>

namespace WebCore {

    class String;

    class StyleSheet;

    class KURL;

    // Base class for most CSS DOM objects.

    // FIXME: We don't need these to all share one base class.

    // Refactor so they don't any more.

    class StyleBase : public RefCounted<StyleBase> {

    public:

        virtual ~StyleBase() { }

        StyleBase* parent() const { return m_parent; }

        void setParent(StyleBase* parent) { m_parent = parent; }

        // returns the url of the style sheet this object belongs to

        KURL baseURL() const;

        virtual bool isCSSStyleSheet() const { return false; }

        virtual bool isCharsetRule() { return false; }

        virtual bool isFontFaceRule() { return false; }

        virtual bool isImportRule() { return false; }

        virtual bool isKeyframeRule() { return false; }

        virtual bool isKeyframesRule() { return false; }

        virtual bool isMediaRule() { return false; }

        virtual bool isVariablesRule() { return false; }

        virtual bool isRule() { return false; }

        virtual bool isStyleRule() { return false; }

        virtual bool isStyleSheet() const { return false; }

        virtual bool isXSLStyleSheet() const { return false; }

        virtual bool isMutableStyleDeclaration() const { return false; }

        virtual String cssText() const;

        virtual void checkLoaded();

        bool useStrictParsing() const { return !m_parent || m_parent->useStrictParsing(); }

        virtual void insertedIntoParent() { }

        StyleSheet* stylesheet();

    protected:

        StyleBase(StyleBase* parent)

            : m_parent(parent)

        {

        }

    private:

        StyleBase* m_parent;

    };

}

#endif