gecko-dev/mobile/android/components/AddonUpdateService.js

116 строки
3.6 KiB
JavaScript

/* 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");
XPCOMUtils.defineLazyModuleGetter(this, "AddonManager",
"resource://gre/modules/AddonManager.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "AddonRepository",
"resource://gre/modules/AddonRepository.jsm");
XPCOMUtils.defineLazyModuleGetter(this, "OS", "resource://gre/modules/osfile.jsm");
function getPref(func, preference, defaultValue) {
try {
return Services.prefs[func](preference);
}
catch (e) {}
return defaultValue;
}
// -----------------------------------------------------------------------
// Add-on auto-update management service
// -----------------------------------------------------------------------
const PREF_ADDON_UPDATE_ENABLED = "extensions.autoupdate.enabled";
var gNeedsRestart = false;
function AddonUpdateService() {}
AddonUpdateService.prototype = {
classDescription: "Add-on auto-update management",
classID: Components.ID("{93c8824c-9b87-45ae-bc90-5b82a1e4d877}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsITimerCallback]),
notify: function aus_notify(aTimer) {
if (aTimer && !getPref("getBoolPref", PREF_ADDON_UPDATE_ENABLED, true))
return;
// If we already auto-upgraded and installed new versions, ignore this check
if (gNeedsRestart)
return;
Services.io.offline = false;
// Assume we are doing a periodic update check
let reason = AddonManager.UPDATE_WHEN_PERIODIC_UPDATE;
if (!aTimer)
reason = AddonManager.UPDATE_WHEN_USER_REQUESTED;
AddonManager.getAddonsByTypes(null, function(aAddonList) {
aAddonList.forEach(function(aAddon) {
if (aAddon.permissions & AddonManager.PERM_CAN_UPGRADE) {
let data = Cc["@mozilla.org/supports-string;1"].createInstance(Ci.nsISupportsString);
data.data = JSON.stringify({ id: aAddon.id, name: aAddon.name });
Services.obs.notifyObservers(data, "addon-update-started", null);
let listener = new UpdateCheckListener();
aAddon.findUpdates(listener, reason);
}
});
});
}
};
// -----------------------------------------------------------------------
// Add-on update listener. Starts a download for any add-on with a viable
// update waiting
// -----------------------------------------------------------------------
function UpdateCheckListener() {
this._status = null;
this._version = null;
}
UpdateCheckListener.prototype = {
onCompatibilityUpdateAvailable: function(aAddon) {
this._status = "compatibility";
},
onUpdateAvailable: function(aAddon, aInstall) {
this._status = "update";
this._version = aInstall.version;
aInstall.install();
},
onNoUpdateAvailable: function(aAddon) {
if (!this._status)
this._status = "no-update";
},
onUpdateFinished: function(aAddon, aError) {
let data = Cc["@mozilla.org/supports-string;1"].createInstance(Ci.nsISupportsString);
if (this._version)
data.data = JSON.stringify({ id: aAddon.id, name: aAddon.name, version: this._version });
else
data.data = JSON.stringify({ id: aAddon.id, name: aAddon.name });
if (aError)
this._status = "error";
Services.obs.notifyObservers(data, "addon-update-ended", this._status);
}
};
this.NSGetFactory = XPCOMUtils.generateNSGetFactory([AddonUpdateService]);