2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
4 * Copyright (C) 2001 Peter Kelly (pmk@post.com)
5 * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
6 * Copyright (C) 2004, 2008 Apple Inc. All rights reserved.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public License
19 * along with this library; see the file COPYING.LIB. If not, write to
20 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
25 #ifndef NodeIterator_h
26 #define NodeIterator_h
28 #include "bindings/v8/ScriptWrappable.h"
29 #include "core/dom/NodeFilter.h"
30 #include "core/dom/NodeIteratorBase.h"
31 #include "wtf/PassRefPtr.h"
32 #include "wtf/RefCounted.h"
38 class NodeIterator : public ScriptWrappable, public RefCounted<NodeIterator>, public NodeIteratorBase {
40 static PassRefPtr<NodeIterator> create(PassRefPtr<Node> rootNode, unsigned whatToShow, PassRefPtr<NodeFilter> filter)
42 return adoptRef(new NodeIterator(rootNode, whatToShow, filter));
46 PassRefPtr<Node> nextNode(ExceptionState&);
47 PassRefPtr<Node> previousNode(ExceptionState&);
50 Node* referenceNode() const { return m_referenceNode.node.get(); }
51 bool pointerBeforeReferenceNode() const { return m_referenceNode.isPointerBeforeNode; }
53 // This function is called before any node is removed from the document tree.
54 void nodeWillBeRemoved(Node&);
57 NodeIterator(PassRefPtr<Node>, unsigned whatToShow, PassRefPtr<NodeFilter>);
61 bool isPointerBeforeNode;
63 NodePointer(PassRefPtr<Node>, bool);
65 bool moveToNext(Node* root);
66 bool moveToPrevious(Node* root);
69 void updateForNodeRemoval(Node& nodeToBeRemoved, NodePointer&) const;
71 NodePointer m_referenceNode;
72 NodePointer m_candidateNode;
75 } // namespace WebCore
77 #endif // NodeIterator_h