Options Menu Button for Custom Buttons extension

cbCommand.js

/* ----------------------------------------------------------------------------
    Compatibility:
    - Firefox 3.6 - 6.0a2
    - Custom Buttons 0.0.5.*

    Changelog:
    - 2011-06-06: using unique IDs for menuitems
    - 2011-06-05: FUELed
    - 2011-05-10: using Custom Buttons API
    - 2011-04-08: Firefox 4+ compatibility
    - 2008-02-29: Initial release
   ---------------------------------------------------------------------------- */

this.openPrefs();

cbInitCode.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.
 *
 * Original code is Options Dialog Options extension for Firefox
 * http://loucypher.wordpress.com/projects/extensions/#options-dialog-options
 *
 * The Initial Developer of the Original Code is LouCypher.
 * Portions created by the Initial Developer are Copyright (C) 2007
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *  LouCypher <loucypher@mozillaca.com>
 *
 * 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 GPL or the LGPL. 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 ***** */

this.label = "Options";
this.tooltipText = Application.name + " " + this.label;

this.openPrefs = function openPrefs(aEvent) {
  if (aEvent) {
    var paneId = aEvent.target.id.match(/pane.*/).toString();
  }

  var features = "chrome, dialog, titlebar, toolbar, centerscreen, minimizable, resizable";

  var wm = Cc["@mozilla.org/appshell/window-mediator;1"]
    .getService(Ci.nsIWindowMediator);

  var win = wm.getMostRecentWindow("Browser:Preferences");
  if (win) {
    win.focus();
    if (paneId) {
      var pane = win.document.getElementById(paneId);
      win.document.documentElement.showPane(pane);
    }
  } else {
    openDialog("chrome://browser/content/preferences/preferences.xul",
               "Preferences", features, paneId);
  }
}

this.popupShowing = function popupShowing(aEvent) {
  // check Firefox version
  var isFF4 = (Application.version >= "4.0");

  // check if Download Manager Tweak extension is installed and is enabled
  // https://addons.mozilla.org/firefox/addon/download-manager-tweak/
  var dmt = "dmtDownloadManager" in window;

  // check if Firefox Sync is installed and is enabled (prior to Firefox 4)
  var sync = "gWeaveWin" in window;

  var paneSync = document.getElementById("cb-paneSync");

  // hide Sync menu if it's not Firefox 4 and Firefox Sync is not installed or is disabled
  paneSync.hidden = (!isFF4 && !sync);

  // rename Sync menu id if Firefox Sync is installed and is enabled
  paneSync.id = sync ? "cb-paneWeaveServices" : "cb-paneSync";

  // hide Downloads menu if Download Manager Tweak is not installed or is disabled
  document.getElementById("cb-paneDownloads").hidden = !dmt;

}

var menu = <menupopup xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
                      onpopupshowing="this.parentNode.popupShowing(event);"
                      context="toolbar-context-menu"
                      oncommand="event.stopPropagation(); this.parentNode.openPrefs(event);">
            <menuitem id="cb-paneMain" label="General"/>
            <menuitem id="cb-paneTabs" label="Tabs"/>
            <menuitem id="cb-paneContent" label="Content"/>
            <menuitem id="cb-paneApplications" label="Applications"/>
            <menuitem id="cb-panePrivacy" label="Privacy"/>
            <menuitem id="cb-paneSecurity" label="Security"/>
            <menuitem id="cb-paneSync" label="Sync"/>
            <menuitem id="cb-paneAdvanced" label="Advanced"/>
            <menuitem id="cb-paneDownloads" label="Downloads"/>
           </menupopup>;

this.appendChild(custombuttonsUtils.makeXML(menu));
this.type = "menu-button";