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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef __nsContentIterator_h___
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#define __nsContentIterator_h___
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//#include "nsIEnumerator.h"
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#include "nsISupports.h"
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class nsIContent;
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class nsIDOMRange;
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/*
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* A simple iterator class for traversing the content in "left to right" order
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*/
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class nsContentIterator // : public nsIEnumerator
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{
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public:
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// constructors/destructor ------------------------------------
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// Creates an iterator for the subtree rooted by the node aRoot
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nsContentIterator(nsIContent* aRoot);
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// Creates an iterator for the subtree defined by the range aRange
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nsContentIterator(nsIDOMRange* aRange);
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virtual ~nsContentIterator();
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// nsIEnumertor interface methods ------------------------------
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virtual nsresult First();
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virtual nsresult Last();
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virtual nsresult Next();
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virtual nsresult Prev();
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virtual nsresult CurrentNode(nsIContent **aItem);
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virtual nsresult IsDone();
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protected:
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static nsIContent* GetDeepFirstChild(nsIContent* aRoot);
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nsIContent *mCurNode;
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nsIContent *mFirst;
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nsIContent *mLast;
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PRBool mIsDone;
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private:
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// no copy's or assigns FIX ME
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nsContentIterator(const nsContentIterator&);
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nsContentIterator& operator=(const nsContentIterator&);
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};
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#endif // __nsContentIterator_h___
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