LCOV - code coverage report
Current view: directory - content/base/src - nsTreeWalker.h (source / functions) Found Hit Coverage
Test: app.info Lines: 2 2 100.0 %
Date: 2012-06-02 Functions: 5 5 100.0 %

       1                 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 : /* vim: set ts=4 et sw=4 tw=80: */
       3                 : /* ***** BEGIN LICENSE BLOCK *****
       4                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       5                 :  *
       6                 :  * The contents of this file are subject to the Mozilla Public License Version
       7                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       8                 :  * the License. You may obtain a copy of the License at
       9                 :  * http://www.mozilla.org/MPL/
      10                 :  *
      11                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      12                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      13                 :  * for the specific language governing rights and limitations under the
      14                 :  * License.
      15                 :  *
      16                 :  * The Original Code is this file as it was released on May 1 2001.
      17                 :  *
      18                 :  * The Initial Developer of the Original Code is
      19                 :  * Jonas Sicking.
      20                 :  * Portions created by the Initial Developer are Copyright (C) 2001
      21                 :  * the Initial Developer. All Rights Reserved.
      22                 :  *
      23                 :  * Contributor(s):
      24                 :  *   Jonas Sicking <sicking@bigfoot.com> (Original Author)
      25                 :  *   Craig Topper  <craig.topper@gmail.com>
      26                 :  *
      27                 :  * Alternatively, the contents of this file may be used under the terms of
      28                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      29                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      30                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      31                 :  * of those above. If you wish to allow use of your version of this file only
      32                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      33                 :  * use your version of this file under the terms of the MPL, indicate your
      34                 :  * decision by deleting the provisions above and replace them with the notice
      35                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      36                 :  * the provisions above, a recipient may use your version of this file under
      37                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      38                 :  *
      39                 :  * ***** END LICENSE BLOCK ***** */
      40                 :  
      41                 : /*
      42                 :  * Implementation of DOM Traversal's nsIDOMTreeWalker
      43                 :  */
      44                 : 
      45                 : #ifndef nsTreeWalker_h___
      46                 : #define nsTreeWalker_h___
      47                 : 
      48                 : #include "nsIDOMTreeWalker.h"
      49                 : #include "nsTraversal.h"
      50                 : #include "nsCOMPtr.h"
      51                 : #include "nsTArray.h"
      52                 : #include "nsCycleCollectionParticipant.h"
      53                 : 
      54                 : class nsINode;
      55                 : class nsIDOMNode;
      56                 : class nsIDOMNodeFilter;
      57                 : 
      58                 : class nsTreeWalker : public nsIDOMTreeWalker, public nsTraversal
      59                 : {
      60                 : public:
      61              26 :     NS_DECL_CYCLE_COLLECTING_ISUPPORTS
      62                 :     NS_DECL_NSIDOMTREEWALKER
      63                 : 
      64                 :     nsTreeWalker(nsINode *aRoot,
      65                 :                  PRUint32 aWhatToShow,
      66                 :                  nsIDOMNodeFilter *aFilter);
      67                 :     virtual ~nsTreeWalker();
      68                 : 
      69            2114 :     NS_DECL_CYCLE_COLLECTION_CLASS(nsTreeWalker)
      70                 : 
      71                 : private:
      72                 :     nsCOMPtr<nsINode> mCurrentNode;
      73                 : 
      74                 :     /*
      75                 :      * Implements FirstChild and LastChild which only vary in which direction
      76                 :      * they search.
      77                 :      * @param aReversed Controls whether we search forwards or backwards
      78                 :      * @param _retval   Returned node. Null if no child is found
      79                 :      * @returns         Errorcode
      80                 :      */
      81                 :     nsresult FirstChildInternal(bool aReversed, nsIDOMNode **_retval);
      82                 : 
      83                 :     /*
      84                 :      * Implements NextSibling and PreviousSibling which only vary in which
      85                 :      * direction they search.
      86                 :      * @param aReversed Controls whether we search forwards or backwards
      87                 :      * @param _retval   Returned node. Null if no child is found
      88                 :      * @returns         Errorcode
      89                 :      */
      90                 :     nsresult NextSiblingInternal(bool aReversed, nsIDOMNode **_retval);
      91                 : };
      92                 : 
      93                 : #endif
      94                 : 

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