56 строки
1.7 KiB
JavaScript
56 строки
1.7 KiB
JavaScript
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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this.EXPORTED_SYMBOLS = ['appIdleManager'];
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Components.utils.import("resource://gre/modules/Services.jsm");
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var Cc = Components.classes;
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var Ci = Components.interfaces;
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// This module provides a mechanism to turn window focus and blur events
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// into app idle notifications. If we get a blur notification that is not
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// followed by a focus notification in less than some small number of seconds,
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// then we send a begin app idle notification.
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// If we get a focus event, and we're app idle, then we send an end app idle
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// notification.
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// The notification topic is "mail:appIdle", the values are "idle", and "back"
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var appIdleManager =
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{
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_appIdle: false,
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_timerInterval: 5000, // 5 seconds ought to be plenty
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get _timer()
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{
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delete this._timer;
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return this._timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
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},
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_timerCallback: function()
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{
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appIdleManager._appIdle = true;
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Services.obs.notifyObservers(null, "mail:appIdle", "idle");
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},
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onBlur: function()
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{
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appIdleManager._timer.initWithCallback(appIdleManager._timerCallback,
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appIdleManager._timerInterval,
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Ci.nsITimer.TYPE_ONE_SHOT);
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},
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onFocus: function()
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{
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appIdleManager._timer.cancel();
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if (appIdleManager._appIdle)
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{
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appIdleManager._appIdle = false;
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Services.obs.notifyObservers(null, "mail:appIdle", "back");
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}
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}
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};
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