michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: this.EXPORTED_SYMBOLS = ["WebappRT"];
michael@0: 
michael@0: const Cc = Components.classes;
michael@0: const Ci = Components.interfaces;
michael@0: const Cu = Components.utils;
michael@0: 
michael@0: Cu.import("resource://gre/modules/XPCOMUtils.jsm");
michael@0: Cu.import("resource://gre/modules/Services.jsm");
michael@0: Cu.import("resource://gre/modules/AppsUtils.jsm");
michael@0: 
michael@0: XPCOMUtils.defineLazyModuleGetter(this, "FileUtils",
michael@0:   "resource://gre/modules/FileUtils.jsm");
michael@0: 
michael@0: XPCOMUtils.defineLazyModuleGetter(this, "OS",
michael@0:   "resource://gre/modules/osfile.jsm");
michael@0: 
michael@0: XPCOMUtils.defineLazyModuleGetter(this, "Task",
michael@0:   "resource://gre/modules/Task.jsm");
michael@0: 
michael@0: XPCOMUtils.defineLazyModuleGetter(this, 'NativeApp',
michael@0:   'resource://gre/modules/NativeApp.jsm');
michael@0: 
michael@0: XPCOMUtils.defineLazyServiceGetter(this, "appsService",
michael@0:                                   "@mozilla.org/AppsService;1",
michael@0:                                   "nsIAppsService");
michael@0: 
michael@0: this.WebappRT = {
michael@0:   get launchURI() {
michael@0:     return this.localeManifest.fullLaunchPath();
michael@0:   },
michael@0: 
michael@0:   get localeManifest() {
michael@0:     return new ManifestHelper(this.config.app.manifest,
michael@0:                               this.config.app.origin);
michael@0:   },
michael@0: 
michael@0:   get appID() {
michael@0:     let manifestURL = WebappRT.config.app.manifestURL;
michael@0:     if (!manifestURL) {
michael@0:       return Ci.nsIScriptSecurityManager.NO_APP_ID;
michael@0:     }
michael@0: 
michael@0:     return appsService.getAppLocalIdByManifestURL(manifestURL);
michael@0:   },
michael@0: 
michael@0:   loadConfig: function() {
michael@0:     if (this.config) {
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     let webappJson = OS.Path.join(Services.dirsvc.get("AppRegD", Ci.nsIFile).path,
michael@0:                                   "webapp.json");
michael@0:     this.config = yield AppsUtils.loadJSONAsync(webappJson);
michael@0:   },
michael@0: 
michael@0:   isUpdatePending: Task.async(function*() {
michael@0:     let webappJson = OS.Path.join(Services.dirsvc.get("AppRegD", Ci.nsIFile).path,
michael@0:                                   "update", "webapp.json");
michael@0: 
michael@0:     if (!(yield OS.File.exists(webappJson))) {
michael@0:       return false;
michael@0:     }
michael@0: 
michael@0:     return true;
michael@0:   }),
michael@0: 
michael@0:   applyUpdate: Task.async(function*() {
michael@0:     let webappJson = OS.Path.join(Services.dirsvc.get("AppRegD", Ci.nsIFile).path,
michael@0:                                   "update", "webapp.json");
michael@0:     let config = yield AppsUtils.loadJSONAsync(webappJson);
michael@0: 
michael@0:     let nativeApp = new NativeApp(config.app, config.app.manifest,
michael@0:                                   config.app.categories,
michael@0:                                   config.registryDir);
michael@0:     try {
michael@0:       yield nativeApp.applyUpdate();
michael@0:     } catch (ex) {
michael@0:       return false;
michael@0:     }
michael@0: 
michael@0:     // The update has been applied successfully, the new config file
michael@0:     // is the config file that was in the update directory.
michael@0:     this.config = config;
michael@0: 
michael@0:     return true;
michael@0:   }),
michael@0: 
michael@0:   startUpdateService: function() {
michael@0:     let manifestURL = WebappRT.config.app.manifestURL;
michael@0:     // We used to install apps without storing their manifest URL.
michael@0:     // Now we can't update them.
michael@0:     if (!manifestURL) {
michael@0:       return;
michael@0:     }
michael@0: 
michael@0:     // Check for updates once a day.
michael@0:     let timerManager = Cc["@mozilla.org/updates/timer-manager;1"].
michael@0:                        getService(Ci.nsIUpdateTimerManager);
michael@0:     timerManager.registerTimer("updateTimer", () => {
michael@0:       let window = Services.wm.getMostRecentWindow("webapprt:webapp");
michael@0:       window.navigator.mozApps.mgmt.getAll().onsuccess = function() {
michael@0:         let thisApp = null;
michael@0:         for (let app of this.result) {
michael@0:           if (app.manifestURL == manifestURL) {
michael@0:             thisApp = app;
michael@0:             break;
michael@0:           }
michael@0:         }
michael@0: 
michael@0:         // This shouldn't happen if the app is installed.
michael@0:         if (!thisApp) {
michael@0:           Cu.reportError("Couldn't find the app in the webapps registry");
michael@0:           return;
michael@0:         }
michael@0: 
michael@0:         thisApp.ondownloadavailable = () => {
michael@0:           // Download available, download it!
michael@0:           thisApp.download();
michael@0:         };
michael@0: 
michael@0:         thisApp.ondownloadsuccess = () => {
michael@0:           // Update downloaded, apply it!
michael@0:           window.navigator.mozApps.mgmt.applyDownload(thisApp);
michael@0:         };
michael@0: 
michael@0:         thisApp.ondownloadapplied = () => {
michael@0:           // Application updated, nothing to do.
michael@0:         };
michael@0: 
michael@0:         thisApp.checkForUpdate();
michael@0:       }
michael@0:     }, 24 * 60 * 60);
michael@0:   },
michael@0: };