gecko/toolkit/mozapps/update/nsUpdateServiceStub.js

46 lines
1.7 KiB
JavaScript

/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
const { classes: Cc, interfaces: Ci, utils: Cu } = Components;
Cu.import("resource://gre/modules/XPCOMUtils.jsm", this);
Cu.import("resource://gre/modules/FileUtils.jsm", this);
const DIR_UPDATES = "updates";
const FILE_UPDATE_STATUS = "update.status";
const KEY_UPDROOT = "UpdRootD";
/**
* Gets the specified directory at the specified hierarchy under the update root
* directory without creating it if it doesn't exist.
* @param pathArray
* An array of path components to locate beneath the directory
* specified by |key|
* @return nsIFile object for the location specified.
*/
function getUpdateDirNoCreate(pathArray) {
return FileUtils.getDir(KEY_UPDROOT, pathArray, false);
}
function UpdateServiceStub() {
let statusFile = getUpdateDirNoCreate([DIR_UPDATES, "0"]);
statusFile.append(FILE_UPDATE_STATUS);
// If the update.status file exists then initiate post update processing.
if (statusFile.exists()) {
let aus = Cc["@mozilla.org/updates/update-service;1"].
getService(Ci.nsIApplicationUpdateService).
QueryInterface(Ci.nsIObserver);
aus.observe(null, "post-update-processing", "");
}
}
UpdateServiceStub.prototype = {
observe: function(){},
classID: Components.ID("{e43b0010-04ba-4da6-b523-1f92580bc150}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver])
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([UpdateServiceStub]);