pjs/b2g/components/UpdatePrompt.js

90 строки
3.0 KiB
JavaScript

/* -*- Mode: Java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=8 et :
*/
/* 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 Cc = Components.classes;
const Ci = Components.interfaces;
const Cu = Components.utils;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource://gre/modules/Services.jsm");
const VERBOSE = 1;
let log =
VERBOSE ?
function log_dump(msg) { dump("UpdatePrompt: "+ msg +"\n"); } :
function log_noop(msg) { };
function UpdatePrompt() { }
UpdatePrompt.prototype = {
classID: Components.ID("{88b3eb21-d072-4e3b-886d-f89d8c49fe59}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIUpdatePrompt]),
_selfDestructTimer: null,
// nsIUpdatePrompt
// FIXME/bug 737601: we should have users opt-in to downloading
// updates when on a billed pipe. Initially, opt-in for 3g, but
// that doesn't cover all cases.
checkForUpdates: function UP_checkForUpdates() { },
showUpdateAvailable: function UP_showUpdateAvailable(aUpdate) { },
showUpdateDownloaded: function UP_showUpdateDownloaded(aUpdate, aBackground) {
// FIXME/bug 737598: we should let the user request that the
// update be applied later, e.g. if they're in the middle of a
// phone call ;).
log("Update downloaded, restarting to apply it");
// If not cleanly shut down within 5 seconds, this process will
// explode.
this._setSelfDestructTimer(5000);
let appStartup = Cc["@mozilla.org/toolkit/app-startup;1"].getService(Ci.nsIAppStartup);
// NB: on Gonk, we rely on the system process manager to restart
// us. Trying to restart here would conflict with the process
// manager. We should be using a runtime check to detect Gonk
// instead of this gross ifdef, but the ifdef works for now.
appStartup.quit(appStartup.eForceQuit
#ifndef ANDROID
| appStartup.eRestart
#endif
);
},
_setSelfDestructTimer: function UP__setSelfDestructTimer(timeoutMs) {
#ifdef ANDROID
Cu.import("resource://gre/modules/ctypes.jsm");
let libc = ctypes.open("libc.so");
let _exit = libc.declare("_exit", ctypes.default_abi,
ctypes.void_t, // [return]
ctypes.int); // status
this.notify = function UP_notify(_) {
log("Self-destruct timer fired; didn't cleanly shut down. BOOM");
_exit(0);
}
let timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer);
timer.initWithCallback(this, timeoutMs, timer.TYPE_ONE_SHOT);
this._selfDestructTimer = timer;
#endif
},
showUpdateInstalled: function UP_showUpdateInstalled() { },
showUpdateError: function UP_showUpdateError(aUpdate) {
if (aUpdate.state == "failed") {
log("Failed to download update");
}
},
showUpdateHistory: function UP_showUpdateHistory(aParent) { },
};
const NSGetFactory = XPCOMUtils.generateNSGetFactory([UpdatePrompt]);