bootstrap.js

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is MobileDNT.
 *
 * The Initial Developer of the Original Code is
 * Mozilla Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2011
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *  Aaron Train <atrain@mozilla.com> (Original Author)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the LGPL or the GPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

var Cc = Components.classes;
var Ci = Components.interfaces;

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

function load(win) {
  let document = win.document;

  let setting = document.createElement("setting");
  setting.setAttribute("id", "dnt-setting");
  setting.setAttribute("type", "bool");
  setting.setAttribute("title", "Request tracking opt-out");
  setting.setAttribute("pref", "privacy.donottrackheader.enabled");
  document.getElementById("prefs-privacy").appendChild(setting);
}

function unload(win) {
  let setting = win.document.getElementById("dnt-setting");
  if (setting)
    setting.parentNode.removeChild(setting);
}

/* Bootstrap Interface */

function startup(aData, aReason) {
  // Load in existing windows.
  let enumerator = Services.wm.getEnumerator("navigator:browser");
  while(enumerator.hasMoreElements()) {
    let win = enumerator.getNext();
    load(win);
  }

  // Load in future windows.
  Services.wm.addListener({
    onOpenWindow: function(aWindow) {
      // Wait for the window to finish loading
      let win = aWindow.QueryInterface(Ci.nsIInterfaceRequestor)
                       .getInterface(Ci.nsIDOMWindowInternal);
      win.addEventListener("UIReady", function(aEvent) {
        win.removeEventListener(aEvent.name, arguments.callee, false);
        load(win);
      }, false);
    },

    // Unused:
    onCloseWindow: function(aWindow) { },
    onWindowTitleChange: function(aWindow, aTitle) { }
  });
}

function shutdown(aData, aReason) {
  if (aReason == APP_SHUTDOWN)
    return;

  let enumerator = Services.wm.getEnumerator("navigator:browser");
  while(enumerator.hasMoreElements()) {
    let win = enumerator.getNext();
    unload(win);
  }
}

function install(aData, aReason) {}
function uninstall(aData, aReason) {}