зеркало из https://github.com/mozilla/pjs.git
69 строки
2.7 KiB
Plaintext
69 строки
2.7 KiB
Plaintext
/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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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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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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