author Leon Sha <leon.sha@oracle.com>
Fri, 14 Oct 2011 13:12:46 +0800
changeset 78728 aa2e380c86fb21743b7e627687357fc06761a84b
parent 77799 e7854b4d29ba905ae3994f821b160c989bac4260
child 78840 ec7577dec4fceef0ac2717416d9c48289402d935
child 105226 cad26d2fb5af799dfe030fd2a8948d617eac2f52
permissions -rw-r--r--
Bug 694256 - Build error: JS_FloorLog2 is missing. r=luke.

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 * The Original Code is mozilla.org code.
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998-1999
 * the Initial Developer. All Rights Reserved.
 * Contributor(s):
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
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 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 * ***** END LICENSE BLOCK ***** */

#ifndef nsFilteredContentIterator_h__
#define nsFilteredContentIterator_h__

#include "nsIContentIterator.h"
#include "nsCOMPtr.h"
#include "nsIAtom.h"
#include "nsITextServicesFilter.h"
#include "nsIDOMNSRange.h"
#include "nsIRangeUtils.h"
#include "nsCycleCollectionParticipant.h"

class nsFilteredContentIterator : public nsIContentIterator

  // nsISupports interface...

  nsFilteredContentIterator(nsITextServicesFilter* aFilter);

  virtual ~nsFilteredContentIterator();

  /* nsIContentIterator */
  virtual nsresult Init(nsINode* aRoot);
  virtual nsresult Init(nsIDOMRange* aRange);
  virtual nsresult Init(nsIRange* aRange);
  virtual void First();
  virtual void Last();
  virtual void Next();
  virtual void Prev();
  virtual nsINode *GetCurrentNode();
  virtual bool IsDone();
  virtual nsresult PositionAt(nsINode* aCurNode);

  /* Helpers */
  bool DidSkip()      { return mDidSkip; }
  void         ClearDidSkip() {  mDidSkip = PR_FALSE; }

  nsFilteredContentIterator() { }

  // enum to give us the direction
  typedef enum {eDirNotSet, eForward, eBackward} eDirectionType;
  nsresult AdvanceNode(nsIDOMNode* aNode, nsIDOMNode*& aNewNode, eDirectionType aDir);
  void CheckAdvNode(nsIDOMNode* aNode, bool& aDidSkip, eDirectionType aDir);
  nsresult SwitchDirections(bool aChangeToForward);

  nsCOMPtr<nsIContentIterator> mCurrentIterator;
  nsCOMPtr<nsIContentIterator> mIterator;
  nsCOMPtr<nsIContentIterator> mPreIterator;

  nsCOMPtr<nsIAtom> mBlockQuoteAtom;
  nsCOMPtr<nsIAtom> mScriptAtom;
  nsCOMPtr<nsIAtom> mTextAreaAtom;
  nsCOMPtr<nsIAtom> mSelectAreaAtom;
  nsCOMPtr<nsIAtom> mMapAtom;

  nsCOMPtr<nsITextServicesFilter> mFilter;
  nsCOMPtr<nsIDOMNSRange>         mRange;
  bool                            mDidSkip;
  bool                            mIsOutOfRange;
  eDirectionType                  mDirection;