forked from mirrors/gecko-dev
85 lines
3 KiB
C++
85 lines
3 KiB
C++
/* -*- 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 ***** */
|
|
|
|
/*
|
|
* used by nsCSSFrameConstructor to determine and iterate the child list
|
|
* used to construct frames (normal children or something from XBL)
|
|
*/
|
|
|
|
#include "nsChildIterator.h"
|
|
#include "nsIDocument.h"
|
|
#include "nsBindingManager.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;
|
|
}
|