Revision c4e67b5801f2e6f31a50156d5872d202985ca0be authored by Max Li on 20 January 2014, 07:22:51 UTC, committed by Max Li on 20 January 2014, 07:22:51 UTC
1 parent 72a7689
nsIObserver.idl
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsISupports.idl"
/**
* This interface is implemented by an object that wants
* to observe an event corresponding to a topic.
*/
[scriptable, function, 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 );
};
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