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102 lines
4.2 KiB
Plaintext
102 lines
4.2 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Gijs Kruitbosch <gijskruitbosch@gmail.com>
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* Portions created by the Initial Developer are Copyright (C) 2007
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Gijs Kruitbosch <gijskruitbosch@gmail.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsISupports.idl"
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interface nsIObserver;
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/**
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* This interface lets you monitor how long the user has been 'idle',
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* i.e. not used their mouse or keyboard. You can get the idle time directly,
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* but in most cases you will want to register an observer for a predefined
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* interval. The observer will get an 'idle' notification when the user is idle
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* for that interval (or longer), and receive a 'back' notification when the
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* user starts using their computer again.
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*/
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[scriptable, uuid(cc52f19a-63ae-4a1c-9cc3-e79eace0b471)]
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interface nsIIdleService : nsISupports
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{
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/**
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* The amount of time in milliseconds that has passed
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* since the last user activity.
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*
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* If we do not have a valid idle time to report, 0 is returned
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* (this can happen if the user never interacted with the browser
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* at all, and if we are also unable to poll for idle time manually).
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*/
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readonly attribute unsigned long idleTime;
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/**
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* Add an observer to be notified when the user idles for some period of
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* time, and when they get back from that.
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*
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* @param observer the observer to be notified
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* @param time the amount of time in seconds the user should be idle before
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* the observer should be notified.
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*
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* @note
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* The subject of the notification the observer will get is always the
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* nsIIdleService itself.
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* When the user goes idle, the observer topic is "idle" and when they get
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* back, the observer topic is "back".
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* The data param for the notification contains the current user idle time.
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*
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* @note
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* You can add the same observer twice.
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* @note
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* Most implementations need to poll the OS for idle info themselves,
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* meaning your notifications could arrive with a delay up to the length
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* of the polling interval in that implementation.
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* Current implementations use a delay of 5 seconds.
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*/
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void addIdleObserver(in nsIObserver observer, in unsigned long time);
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/**
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* Remove an observer registered with addIdleObserver.
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* @param observer the observer that needs to be removed.
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* @param time the amount of time they were listening for.
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* @note
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* Removing an observer will remove it once, for the idle time you specify.
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* If you have added an observer multiple times, you will need to remove it
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* just as many times.
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*/
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void removeIdleObserver(in nsIObserver observer, in unsigned long time);
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};
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