Cloned from issue http://codereview.chromium.org/5277004/ by rogerta@chromium...

ceee/firefox/modules/global.js

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview
  * This file contains global declarations used by the CEEE Firefox add-on.
  * Global variables defined in overlay.js are global only to a single top-level
  * window, and not to the entire Firefox app.
  *
@@ skipping 124 matching lines @@
           'window': w,
           'tabBrowser': mainBrowser,
           'index': index
         };
       }
     }
   }
 };
 
 /**
+ * Find the window with the given a Chrome Frame session id.
+ *
+ * @param {number} id The Chrome Frame session Id of the window to find.
+ * @return The window that contains the Chrome Frame instance with the
+ *     specified session Id, or null if no window is found.
+ * @public
+ */
+CEEE_mozilla_windows.findWindowFromCfSessionId = function(id) {
+  var e = this.service.getEnumerator(this.WINDOW_TYPE);
+  while (e.hasMoreElements()) {
+    var win = e.getNext();
+    var cf = win.document.getElementById(CEEE_globals.CHROME_FRAME_ID);
+    if (cf.sessionid == id)
+      return win;
+  }
+  return null;
+};
+
+/**
  * Global object used as a place-holder for API routines accessing the Mozilla
  * tabs interface.
  * @public
  */
 var CEEE_mozilla_tabs = CEEE_mozilla_tabs || {
   /** @const */ TAB_ID: 'ceee_tabid'
 };
 
 /**
  * Get the unique id of the given tab.  If the tab does not have
@@ skipping 215 matching lines @@
 };
 
 
 /**
  * A class to hold all global variables and methods.
  */
 var CEEE_globals = CEEE_globals || {
   /** @const */ MAIN_BROWSER_ID: 'content',
   /** @const */ ADDON_ID: 'ceee@google.com',
 
+  /**
+   * Value used for id attribute of the ChromeFrame <embed> element.
+   * @const
+   */
+  CHROME_FRAME_ID: 'ceee-browser',
+
   /** The integer id for the next window. @private */
   nextWindowId_: 0,
 
   /** The integer id for the next tab. @private */
   nextTabId_: 0,
 
   /** The integer id for the next tab. @private */
   nextPortId_: 0,
 
   /** Preferences object for CEEE. @private */
@@ skipping 118 matching lines @@
  * @param {Object} obj 'this' object for the function.
  * @return {function(?)} A closure of a first argument.
  */
 CEEE_globals.hitch = function(func, obj /* , arg1, arg2,... */) {
   var args = Array.prototype.slice.call(arguments, 2);
   return function() {
     var a = Array.prototype.slice.call(arguments);
     return func.apply(obj, args.concat(a));
   };
 };