third_party/WebKit/Source/core/dom/NodeIteratorBase.h

   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 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
  44     DECLARE_VIRTUAL_TRACE();
  45
  46 protected:
  47     NodeIteratorBase(PassRefPtrWillBeRawPtr<Node>, unsigned whatToShow, PassRefPtrWillBeRawPtr<NodeFilter>);
  48     unsigned acceptNode(Node*, ExceptionState&) const;
  49
  50 private:
  51     RefPtrWillBeMember<Node> m_root;
  52     unsigned m_whatToShow;
  53     RefPtrWillBeMember<NodeFilter> m_filter;
  54 };
  55
  56 } // namespace blink
  57
  58 #endif // NodeIteratorBase_h