/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

"use strict";

const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;

this.EXPORTED_SYMBOLS = [
  "getChromeWindow"
];

// Get the chrome (ie, browser) window hosting this content.
function getChromeWindow(window) {
  return window
         .QueryInterface(Ci.nsIInterfaceRequestor)
         .getInterface(Ci.nsIWebNavigation)
         .QueryInterface(Ci.nsIDocShellTreeItem)
         .rootTreeItem
         .QueryInterface(Ci.nsIInterfaceRequestor)
         .getInterface(Ci.nsIDOMWindow)
         .wrappedJSObject;
}