pjs/toolkit/components/places/nsPlacesMacros.h

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4.0 KiB
C

/* -*- Mode: C++; tab-width: 8; 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 Places.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2009
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Mark Finkle <mfinkle@mozilla.com> (original author)
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 "prtypes.h"
// Call a method on each observer in a category cache, then call the same
// method on the observer array.
#define NOTIFY_OBSERVERS(canFire, cache, array, type, method) \
PR_BEGIN_MACRO \
if (canFire) { \
const nsCOMArray<type> &entries = cache.GetEntries(); \
for (PRInt32 idx = 0; idx < entries.Count(); ++idx) \
entries[idx]->method; \
ENUMERATE_WEAKARRAY(array, type, method) \
} \
PR_END_MACRO;
#define PLACES_FACTORY_SINGLETON_IMPLEMENTATION(_className, _sInstance) \
_className * _className::_sInstance = nsnull; \
\
_className * \
_className::GetSingleton() \
{ \
if (_sInstance) { \
NS_ADDREF(_sInstance); \
return _sInstance; \
} \
_sInstance = new _className(); \
if (_sInstance) { \
NS_ADDREF(_sInstance); \
if (NS_FAILED(_sInstance->Init())) \
NS_RELEASE(_sInstance); \
} \
return _sInstance; \
}