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65 lines
2.2 KiB
JavaScript
65 lines
2.2 KiB
JavaScript
/* 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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/**
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* This component triggers a periodic webapp update check.
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*/
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"use strict";
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const Cc = Components.classes;
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const Ci = Components.interfaces;
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const Cu = Components.utils;
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/WebappManager.jsm");
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Cu.import("resource://gre/modules/XPCOMUtils.jsm");
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function log(message) {
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// We use *dump* instead of Services.console.logStringMessage so the messages
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// have the INFO level of severity instead of the ERROR level. And we don't
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// append a newline character to the end of the message because *dump* spills
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// into the Android native logging system, which strips newlines from messages
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// and breaks messages into lines automatically at display time (i.e. logcat).
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dump(message);
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}
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function WebappsUpdateTimer() {}
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WebappsUpdateTimer.prototype = {
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QueryInterface: XPCOMUtils.generateQI([Ci.nsITimerCallback,
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Ci.nsISupportsWeakReference]),
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classID: Components.ID("{8f7002cb-e959-4f0a-a2e8-563232564385}"),
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notify: function(aTimer) {
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if (Services.prefs.getIntPref("browser.webapps.checkForUpdates") == 0) {
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// Do nothing, because updates are disabled.
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log("Webapps update timer invoked in webapp process; ignoring.");
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return;
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}
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// If we are offline, wait to be online to start the update check.
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if (Services.io.offline) {
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log("network offline for webapp update check; waiting");
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Services.obs.addObserver(this, "network:offline-status-changed", true);
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return;
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}
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log("periodic check for webapp updates");
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WebappManager.checkForUpdates();
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},
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observe: function(aSubject, aTopic, aData) {
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if (aTopic !== "network:offline-status-changed" || aData !== "online") {
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return;
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}
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log("network back online for webapp update check; commencing");
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Services.obs.removeObserver(this, "network:offline-status-changed");
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WebappManager.checkForUpdates();
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}
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};
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([WebappsUpdateTimer]);
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