/*
* 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 TreeWalker_h
#define TreeWalker_h
#include "bindings/v8/ScriptWrappable.h"
#include "core/dom/NodeFilter.h"
#include "core/dom/NodeIteratorBase.h"
#include "wtf/PassRefPtr.h"
#include "wtf/RefCounted.h"
namespace WebCore {
class ExceptionState;
class TreeWalker : public ScriptWrappable, public RefCounted<TreeWalker>, public NodeIteratorBase {
public:
static PassRefPtr<TreeWalker> create(PassRefPtr<Node> rootNode, unsigned whatToShow, PassRefPtr<NodeFilter> filter)
{
return adoptRef(new TreeWalker(rootNode, whatToShow, filter));
}
Node* currentNode() const { return m_current.get(); }
void setCurrentNode(PassRefPtr<Node>, ExceptionState&);
Node* parentNode(ExceptionState&);
Node* firstChild(ExceptionState&);
Node* lastChild(ExceptionState&);
Node* previousSibling(ExceptionState&);
Node* nextSibling(ExceptionState&);
Node* previousNode(ExceptionState&);
Node* nextNode(ExceptionState&);
private:
TreeWalker(PassRefPtr<Node>, unsigned whatToShow, PassRefPtr<NodeFilter>);
Node* setCurrent(PassRefPtr<Node>);
RefPtr<Node> m_current;
};
} // namespace WebCore
#endif // TreeWalker_h