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39 lines
1.3 KiB
Plaintext
39 lines
1.3 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsISupports.idl"
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/**
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* This interface is implemented by an object that wants
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* to observe an event corresponding to a topic.
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*/
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[scriptable, function, uuid(DB242E01-E4D9-11d2-9DDE-000064657374)]
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interface nsIObserver : nsISupports {
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/**
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* Observe will be called when there is a notification for the
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* topic |aTopic|. This assumes that the object implementing
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* this interface has been registered with an observer service
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* such as the nsIObserverService.
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*
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* If you expect multiple topics/subjects, the impl is
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* responsible for filtering.
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*
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* You should not modify, add, remove, or enumerate
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* notifications in the implemention of observe.
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*
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* @param aSubject : Notification specific interface pointer.
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* @param aTopic : The notification topic or subject.
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* @param aData : Notification specific wide string.
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* subject event.
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*/
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void observe( in nsISupports aSubject,
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in string aTopic,
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in wstring aData );
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};
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