1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/xpcom/ds/nsIObserver.idl Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,38 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "nsISupports.idl"
1.10 +
1.11 +/**
1.12 + * This interface is implemented by an object that wants
1.13 + * to observe an event corresponding to a topic.
1.14 + */
1.15 +
1.16 +[scriptable, function, uuid(DB242E01-E4D9-11d2-9DDE-000064657374)]
1.17 +interface nsIObserver : nsISupports {
1.18 +
1.19 + /**
1.20 + * Observe will be called when there is a notification for the
1.21 + * topic |aTopic|. This assumes that the object implementing
1.22 + * this interface has been registered with an observer service
1.23 + * such as the nsIObserverService.
1.24 + *
1.25 + * If you expect multiple topics/subjects, the impl is
1.26 + * responsible for filtering.
1.27 + *
1.28 + * You should not modify, add, remove, or enumerate
1.29 + * notifications in the implemention of observe.
1.30 + *
1.31 + * @param aSubject : Notification specific interface pointer.
1.32 + * @param aTopic : The notification topic or subject.
1.33 + * @param aData : Notification specific wide string.
1.34 + * subject event.
1.35 + */
1.36 + void observe( in nsISupports aSubject,
1.37 + in string aTopic,
1.38 + in wstring aData );
1.39 +
1.40 +};
1.41 +
