LCOV - code coverage report
Current view: directory - layout/base - nsChildIterator.cpp (source / functions) Found Hit Coverage
Test: app.info Lines: 19 0 0.0 %
Date: 2012-06-02 Functions: 1 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : // vim:cindent:ts=2:et:sw=2:
       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 mozilla.org code.
      17                 :  *
      18                 :  * The Initial Developer of the Original Code is
      19                 :  * Netscape Communications Corporation.
      20                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      21                 :  * the Initial Developer. All Rights Reserved.
      22                 :  *
      23                 :  * Contributor(s):
      24                 :  *
      25                 :  * Alternatively, the contents of this file may be used under the terms of
      26                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      27                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      28                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      29                 :  * of those above. If you wish to allow use of your version of this file only
      30                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      31                 :  * use your version of this file under the terms of the MPL, indicate your
      32                 :  * decision by deleting the provisions above and replace them with the notice
      33                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      34                 :  * the provisions above, a recipient may use your version of this file under
      35                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      36                 :  *
      37                 :  * ***** END LICENSE BLOCK ***** */
      38                 : 
      39                 : /*
      40                 :  * used by nsCSSFrameConstructor to determine and iterate the child list
      41                 :  * used to construct frames (normal children or something from XBL)
      42                 :  */
      43                 : 
      44                 : #include "nsChildIterator.h"
      45                 : #include "nsIDocument.h"
      46                 : #include "nsBindingManager.h"
      47                 : 
      48                 : nsresult
      49               0 : ChildIterator::Init(nsIContent*    aContent,
      50                 :                     ChildIterator* aFirst,
      51                 :                     ChildIterator* aLast)
      52                 : {
      53                 :   // Initialize out parameters to be equal, in case of failure.
      54               0 :   aFirst->mContent = aLast->mContent = nsnull;
      55               0 :   aFirst->mChild   = aLast->mChild   = nsnull;
      56                 :   
      57               0 :   NS_PRECONDITION(aContent != nsnull, "no content");
      58               0 :   if (! aContent)
      59               0 :     return NS_ERROR_NULL_POINTER;
      60                 : 
      61               0 :   nsIDocument* doc = aContent->OwnerDoc();
      62                 : 
      63                 :   // If this node has XBL children, then use them. Otherwise, just use
      64                 :   // the vanilla content APIs.
      65               0 :   nsINodeList* nodes = doc->BindingManager()->GetXBLChildNodesFor(aContent);
      66                 : 
      67               0 :   aFirst->mContent = aContent;
      68               0 :   aLast->mContent  = aContent;
      69               0 :   aFirst->mNodes   = nodes;
      70               0 :   aLast->mNodes    = nodes;
      71                 : 
      72               0 :   if (nodes) {
      73                 :     PRUint32 length;
      74               0 :     nodes->GetLength(&length);
      75               0 :     aFirst->mIndex = 0;
      76               0 :     aLast->mIndex = length;
      77                 :   } else {
      78               0 :     aFirst->mChild = aContent->GetFirstChild();
      79               0 :     aLast->mChild = nsnull;
      80                 :   }
      81                 : 
      82               0 :   return NS_OK;
      83                 : }

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