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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
// vim:cindent:ts=2:et:sw=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
* 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
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* 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 ***** */
#include "nsChildIterator.h"
#include "nsIDocument.h"
#include "nsIBindingManager.h"
nsresult
ChildIterator::Init(nsIContent* aContent,
ChildIterator* aFirst,
ChildIterator* aLast)
{
// Initialize out parameters to be equal, in case of failure.
aFirst->mContent = aLast->mContent = nsnull;
aFirst->mIndex = aLast->mIndex = 0;
NS_PRECONDITION(aContent != nsnull, "no content");
if (! aContent)
return NS_ERROR_NULL_POINTER;
nsCOMPtr<nsIDocument> doc = aContent->GetDocument();
NS_ASSERTION(doc, "element not in the document");
if (! doc)
return NS_ERROR_FAILURE;
// If this node has XBL children, then use them. Otherwise, just use
// the vanilla content APIs.
nsCOMPtr<nsIDOMNodeList> nodes;
doc->BindingManager()->GetXBLChildNodesFor(aContent, getter_AddRefs(nodes));
PRUint32 length;
if (nodes)
nodes->GetLength(&length);
else
length = aContent->GetChildCount();
aFirst->mContent = aContent;
aLast->mContent = aContent;
aFirst->mIndex = 0;
aLast->mIndex = length;
aFirst->mNodes = nodes;
aLast->mNodes = nodes;
return NS_OK;
}
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