The Tor Browser: tools/quitter/QuitterObserver.js@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     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

     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     5 Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");

     6 Components.utils.import("resource://gre/modules/Services.jsm");

     8 const Cc = Components.classes;

     9 const Ci = Components.interfaces;

    11 const CHILD_SCRIPT = "chrome://quitter/content/contentscript.js";

    13 /* XPCOM gunk */

    14 function QuitterObserver() {}

    16 QuitterObserver.prototype = {

    17   classDescription: "Quitter Observer for use in testing.",

    18   classID:          Components.ID("{c235a986-5ac1-4f28-ad73-825dae9bad90}"),

    19   contractID:       "@mozilla.org/quitter-observer;1",

    20   QueryInterface:   XPCOMUtils.generateQI([Components.interfaces.nsIObserver]),

    21   _xpcom_categories: [{category: "profile-after-change", service: true }],

    22   isFrameScriptLoaded: false,

    24   observe: function(aSubject, aTopic, aData)

    25   {

    26     if (aTopic == "profile-after-change") {

    27       this.init();

    28     } else if (!this.isFrameScriptLoaded &&

    29                aTopic == "chrome-document-global-created") {

    31       var messageManager = Cc["@mozilla.org/globalmessagemanager;1"].

    32                            getService(Ci.nsIMessageBroadcaster);

    33       // Register for any messages our API needs us to handle

    34       messageManager.addMessageListener("Quitter.Quit", this);

    36       messageManager.loadFrameScript(CHILD_SCRIPT, true);

    37       this.isFrameScriptLoaded = true;

    38     } else if (aTopic == "xpcom-shutdown") {

    39       this.uninit();

    40     }

    41   },

    43   init: function()

    44   {

    45     var obs = Services.obs;

    46     obs.addObserver(this, "xpcom-shutdown", false);

    47     obs.addObserver(this, "chrome-document-global-created", false);

    48   },

    50   uninit: function()

    51   {

    52     var obs = Services.obs;

    53     obs.removeObserver(this, "chrome-document-global-created", false);

    54   },

    56   /**

    57    * messageManager callback function

    58    * This will get requests from our API in the window and process them in chrome for it

    59    **/

    60   receiveMessage: function(aMessage) {

    61     switch(aMessage.name) {

    62       case "Quitter.Quit":

    63         let appStartup = Cc["@mozilla.org/toolkit/app-startup;1"].getService(Ci.nsIAppStartup);

    64         appStartup.quit(Ci.nsIAppStartup.eForceQuit);

    65         break;

    66     }

    67   }

    68 };

    70 const NSGetFactory = XPCOMUtils.generateNSGetFactory([QuitterObserver]);

The Tor Browser / file revision