| The Android Open Source Project | 8e35f3c | 2009-03-03 19:30:52 -0800 | [diff] [blame] | 1 | /* |
| 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. |
| 7 | * |
| 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. |
| 12 | * |
| 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. |
| 17 | * |
| 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. |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | #ifndef TreeWalker_h |
| 26 | #define TreeWalker_h |
| 27 | |
| The Android Open Source Project | 8e35f3c | 2009-03-03 19:30:52 -0800 | [diff] [blame] | 28 | #include "NodeFilter.h" |
| 29 | #include "Traversal.h" |
| 30 | #include <wtf/PassRefPtr.h> |
| 31 | #include <wtf/RefCounted.h> |
| 32 | |
| 33 | namespace WebCore { |
| 34 | |
| 35 | typedef int ExceptionCode; |
| 36 | |
| 37 | class TreeWalker : public RefCounted<TreeWalker>, public Traversal { |
| 38 | public: |
| 39 | static PassRefPtr<TreeWalker> create(PassRefPtr<Node> rootNode, unsigned whatToShow, PassRefPtr<NodeFilter> filter, bool expandEntityReferences) |
| 40 | { |
| 41 | return adoptRef(new TreeWalker(rootNode, whatToShow, filter, expandEntityReferences)); |
| 42 | } |
| 43 | |
| 44 | Node* currentNode() const { return m_current.get(); } |
| 45 | void setCurrentNode(PassRefPtr<Node>, ExceptionCode&); |
| 46 | |
| The Android Open Source Project | 6358608 | 2009-03-05 14:34:32 -0800 | [diff] [blame] | 47 | Node* parentNode(ScriptState*); |
| 48 | Node* firstChild(ScriptState*); |
| 49 | Node* lastChild(ScriptState*); |
| 50 | Node* previousSibling(ScriptState*); |
| 51 | Node* nextSibling(ScriptState*); |
| 52 | Node* previousNode(ScriptState*); |
| 53 | Node* nextNode(ScriptState*); |
| The Android Open Source Project | 8e35f3c | 2009-03-03 19:30:52 -0800 | [diff] [blame] | 54 | |
| 55 | // For non-JS bindings. Silently ignores the JavaScript exception if any. |
| The Android Open Source Project | 6358608 | 2009-03-05 14:34:32 -0800 | [diff] [blame] | 56 | Node* parentNode() { return parentNode(scriptStateFromNode(m_current.get())); } |
| 57 | Node* firstChild() { return firstChild(scriptStateFromNode(m_current.get())); } |
| 58 | Node* lastChild() { return lastChild(scriptStateFromNode(m_current.get())); } |
| 59 | Node* previousSibling() { return previousSibling(scriptStateFromNode(m_current.get())); } |
| 60 | Node* nextSibling() { return nextSibling(scriptStateFromNode(m_current.get())); } |
| 61 | Node* previousNode() { return previousNode(scriptStateFromNode(m_current.get())); } |
| 62 | Node* nextNode() { return nextNode(scriptStateFromNode(m_current.get())); } |
| The Android Open Source Project | 8e35f3c | 2009-03-03 19:30:52 -0800 | [diff] [blame] | 63 | |
| 64 | private: |
| 65 | TreeWalker(PassRefPtr<Node>, unsigned whatToShow, PassRefPtr<NodeFilter>, bool expandEntityReferences); |
| 66 | |
| 67 | Node* setCurrent(PassRefPtr<Node>); |
| 68 | |
| 69 | RefPtr<Node> m_current; |
| 70 | }; |
| 71 | |
| 72 | } // namespace WebCore |
| 73 | |
| 74 | #endif // TreeWalker_h |
