1 /* 2 * Copyright (C) 1999 Lars Knoll (knoll (at) kde.org) 3 * Copyright (C) 2000 Frederik Holljen (frederik.holljen (at) hig.no) 4 * Copyright (C) 2001 Peter Kelly (pmk (at) post.com) 5 * Copyright (C) 2006 Samuel Weinig (sam.weinig (at) 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 NodeIteratorBase_h 26 #define NodeIteratorBase_h 27 28 #include "platform/heap/Handle.h" 29 #include "wtf/RefPtr.h" 30 31 namespace blink { 32 33 class ExceptionState; 34 class Node; 35 class NodeFilter; 36 37 class NodeIteratorBase : public WillBeGarbageCollectedMixin { 38 DECLARE_EMPTY_VIRTUAL_DESTRUCTOR_WILL_BE_REMOVED(NodeIteratorBase); 39 public: 40 Node* root() const { return m_root.get(); } 41 unsigned whatToShow() const { return m_whatToShow; } 42 NodeFilter* filter() const { return m_filter.get(); } 43 // |expandEntityReferences| first appeared in "DOM Level 2 Traversal and Range". However, this argument was 44 // never implemented, and, in DOM4, the function argument |expandEntityReferences| is removed from 45 // Document.createNodeIterator() and Document.createTreeWalker(). 46 bool expandEntityReferences() const { return false; } 47 48 virtual void trace(Visitor*); 49 50 protected: 51 NodeIteratorBase(PassRefPtrWillBeRawPtr<Node>, unsigned whatToShow, PassRefPtrWillBeRawPtr<NodeFilter>); 52 short acceptNode(Node*, ExceptionState&) const; 53 54 private: 55 RefPtrWillBeMember<Node> m_root; 56 unsigned m_whatToShow; 57 RefPtrWillBeMember<NodeFilter> m_filter; 58 }; 59 60 } // namespace blink 61 62 #endif // NodeIteratorBase_h 63
