nsIObserver.idl
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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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- * 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/
- *
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- * 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
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- * ***** END LICENSE BLOCK ***** */
- #include "nsISupports.idl"
- /**
- * This interface is implemented by an object that wants
- * to observe an event corresponding to a topic.
- *
- * @status FROZEN
- */
- [scriptable, uuid(DB242E01-E4D9-11d2-9DDE-000064657374)]
- interface nsIObserver : nsISupports {
- /**
- * Observe will be called when there is a notification for the
- * topic |aTopic|. This assumes that the object implementing
- * this interface has been registered with an observer service
- * such as the nsIObserverService.
- *
- * If you expect multiple topics/subjects, the impl is
- * responsible for filtering.
- *
- * You should not modify, add, remove, or enumerate
- * notifications in the implemention of observe.
- *
- * @param aSubject : Notification specific interface pointer.
- * @param aTopic : The notification topic or subject.
- * @param aData : Notification specific wide string.
- * subject event.
- */
- void observe( in nsISupports aSubject,
- in string aTopic,
- in wstring aData );
- };