pjs/xpcom/ds/nsIObserver.idl

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Netscape Public License
* Version 1.1 (the "License"); you may not use this file except in
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* http://www.mozilla.org/NPL/
*
* 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 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
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* ***** END LICENSE BLOCK ***** */
#include "nsISupports.idl"
/**
* This interface is implemented by an object that needs
* to observe an event corresponding to a change in a
* topic for a subject.
*/
[scriptable, uuid(DB242E01-E4D9-11d2-9DDE-000064657374)]
interface nsIObserver : nsISupports {
/**
* Called if the topic changes for the subject. If you expect
* multiple topics/subjects, the impl is responsible for filtering.
*
* @param aSubject - the event specific data that has changed.
* @param aTopic - indicates the event that has changed.
* @param aData - out of band data specific to the topic/
* subject event.
*/
void Observe( in nsISupports aSubject,
in wstring aTopic,
in wstring aData );
};
%{C++
#define NS_OBSERVER_CONTRACTID "@mozilla.org/xpcom/observer;1"
#define NS_OBSERVER_CLASSNAME "Observer"
%}