gecko/content/base/public/nsPresShellIterator.h
2007-12-19 23:30:04 -08:00

69 lines
2.5 KiB
C++

/* -*- 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 Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Olli Pettay <Olli.Pettay@helsinki.fi> (Original Author)
*
* 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 ***** */
#ifndef nsPresShellIterato_h___
#define nsPresShellIterato_h___
#include "nsIPresShell.h"
#include "nsIDocument.h"
class nsPresShellIterator :
private nsTObserverArray<nsIPresShell*>::ForwardIterator
{
public:
nsPresShellIterator(nsIDocument* aDoc)
: nsTObserverArray<nsIPresShell*>::ForwardIterator(aDoc->mPresShells),
mDoc(aDoc) {}
already_AddRefed<nsIPresShell> GetNextShell()
{
nsIPresShell* shell = nsnull;
if (!mDoc->ShellsAreHidden() && HasMore()) {
shell = GetNext();
NS_IF_ADDREF(shell);
}
return shell;
}
private:
static void* operator new(size_t) CPP_THROW_NEW { return 0; }
static void operator delete(void*, size_t) {}
nsCOMPtr<nsIDocument> mDoc;
};
#endif