/*

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

 * Copyright (C) 2000 Frederik Holljen (frederik.holljen@hig.no)

 * Copyright (C) 2001 Peter Kelly (pmk@post.com)

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

 * Copyright (C) 2004, 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 Traversal_h

#define Traversal_h

#include "ScriptState.h"

#include <wtf/RefPtr.h>

namespace WebCore {

    class Node;

    class NodeFilter;

    class Traversal {

    public:

        Node* root() const { return m_root.get(); }

        unsigned whatToShow() const { return m_whatToShow; }

        NodeFilter* filter() const { return m_filter.get(); }

        bool expandEntityReferences() const { return m_expandEntityReferences; }

    protected:

        Traversal(PassRefPtr<Node>, unsigned whatToShow, PassRefPtr<NodeFilter>, bool expandEntityReferences);

        short acceptNode(ScriptState*, Node*) const;

    private:

        RefPtr<Node> m_root;

        unsigned m_whatToShow;

        RefPtr<NodeFilter> m_filter;

        bool m_expandEntityReferences;

    };

} // namespace WebCore

#endif // Traversal_h