webapprt/WebappsHandler.jsm

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   3  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 "use strict";
   6
   7 this.EXPORTED_SYMBOLS = ["WebappsHandler"];
   8
   9 let Cc = Components.classes;
  10 let Ci = Components.interfaces;
  11 let Cu = Components.utils;
  12
  13 Cu.import("resource://gre/modules/XPCOMUtils.jsm");
  14 Cu.import("resource://gre/modules/Services.jsm");
  15 Cu.import("resource://gre/modules/Webapps.jsm");
  16 Cu.import("resource://gre/modules/AppsUtils.jsm");
  17 Cu.import("resource://gre/modules/WebappsInstaller.jsm");
  18 Cu.import("resource://gre/modules/WebappOSUtils.jsm");
  19
  20 this.WebappsHandler = {
  21   observe: function(subject, topic, data) {
  22     data = JSON.parse(data);
  23     data.mm = subject;
  24
  25     switch (topic) {
  26       case "webapps-ask-install":
  27         let chromeWin = Services.wm.getOuterWindowWithId(data.oid);
  28         if (chromeWin)
  29           this.doInstall(data, chromeWin);
  30         break;
  31       case "webapps-launch":
  32         WebappOSUtils.launch(data);
  33         break;
  34       case "webapps-uninstall":
  35         WebappOSUtils.uninstall(data);
  36         break;
  37     }
  38   },
  39
  40   doInstall: function(data, window) {
  41     let jsonManifest = data.isPackage ? data.app.updateManifest : data.app.manifest;
  42     let manifest = new ManifestHelper(jsonManifest, data.app.origin);
  43     let name = manifest.name;
  44     let bundle = Services.strings.createBundle("chrome://webapprt/locale/webapp.properties");
  45
  46     let choice = Services.prompt.confirmEx(
  47       window,
  48       bundle.formatStringFromName("webapps.install.title", [name], 1),
  49       bundle.formatStringFromName("webapps.install.description", [name], 1),
  50       // Set both buttons to strings with the cancel button being default
  51       Ci.nsIPromptService.BUTTON_POS_1_DEFAULT |
  52         Ci.nsIPromptService.BUTTON_TITLE_IS_STRING * Ci.nsIPromptService.BUTTON_POS_0 |
  53         Ci.nsIPromptService.BUTTON_TITLE_IS_STRING * Ci.nsIPromptService.BUTTON_POS_1,
  54       bundle.GetStringFromName("webapps.install.install"),
  55       bundle.GetStringFromName("webapps.install.dontinstall"),
  56       null,
  57       null,
  58       {});
  59
  60     // Perform the install if the user allows it
  61     if (choice == 0) {
  62       let shell = WebappsInstaller.init(data);
  63
  64       if (shell) {
  65         let localDir = null;
  66         if (shell.appProfile) {
  67           localDir = shell.appProfile.localDir;
  68         }
  69
  70         DOMApplicationRegistry.confirmInstall(data, localDir,
  71           function (aManifest) {
  72             WebappsInstaller.install(data, aManifest);
  73           }
  74         );
  75       } else {
  76         DOMApplicationRegistry.denyInstall(data);
  77       }
  78     } else {
  79       DOMApplicationRegistry.denyInstall(data);
  80     }
  81   },
  82
  83   QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
  84                                          Ci.nsISupportsWeakReference])
  85 };
  86
  87 Services.obs.addObserver(WebappsHandler, "webapps-ask-install", false);
  88 Services.obs.addObserver(WebappsHandler, "webapps-launch", false);
  89 Services.obs.addObserver(WebappsHandler, "webapps-uninstall", false);