2008-07-21 17:38:52 -07:00
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is this file as it was released on July 19 2008.
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*
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* The Initial Developer of the Original Code is
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* Craig Toppper.
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* Portions created by the Initial Developer are Copyright (C) 2008
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Craig Topper <craig.topper@gmail.com> (Original Author)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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* Implementation of DOM Traversal's nsIDOMNodeIterator
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*/
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#ifndef nsNodeIterator_h___
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#define nsNodeIterator_h___
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#include "nsIDOMNodeIterator.h"
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#include "nsTraversal.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsStubMutationObserver.h"
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class nsINode;
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class nsIDOMNode;
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class nsIDOMNodeFilter;
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class nsNodeIterator : public nsIDOMNodeIterator,
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public nsTraversal,
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public nsStubMutationObserver
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{
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_NSIDOMNODEITERATOR
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nsNodeIterator(nsINode *aRoot,
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PRUint32 aWhatToShow,
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nsIDOMNodeFilter *aFilter,
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PRBool aExpandEntityReferences);
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virtual ~nsNodeIterator();
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NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
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NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsNodeIterator, nsIDOMNodeIterator)
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private:
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struct NodePointer {
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NodePointer() : mNode(nsnull) {};
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NodePointer(nsINode *aNode, PRBool aBeforeNode);
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2010-04-09 18:36:40 -07:00
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typedef PRBool (NodePointer::*MoveToMethodType)(nsINode*);
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2008-07-21 17:38:52 -07:00
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PRBool MoveToNext(nsINode *aRoot);
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PRBool MoveToPrevious(nsINode *aRoot);
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2010-07-21 15:05:20 -07:00
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PRBool MoveForward(nsINode *aRoot, nsINode *aNode);
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void MoveBackward(nsINode *aParent, nsINode *aNode);
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2008-07-21 17:38:52 -07:00
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2010-07-21 15:05:20 -07:00
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void AdjustAfterRemoval(nsINode *aRoot, nsINode *aContainer, nsIContent *aChild, nsIContent *aPreviousSibling);
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2010-03-01 21:06:29 -08:00
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2008-07-21 17:38:52 -07:00
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void Clear() { mNode = nsnull; }
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nsINode *mNode;
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PRBool mBeforeNode;
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};
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2010-04-09 18:36:40 -07:00
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inline nsresult
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NextOrPrevNode(NodePointer::MoveToMethodType aMove,
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nsIDOMNode **_retval);
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2008-07-21 17:38:52 -07:00
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PRBool mDetached;
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NodePointer mPointer;
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NodePointer mWorkingPointer;
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};
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#endif
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