The Tor Browser / file revision

 /* 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';

 // The panel module currently supports only Firefox.

 // See: https://bugzilla.mozilla.org/show_bug.cgi?id=jetpack-panel-apps

 module.metadata = {

   'stability': 'unstable',

   'engines': {

     'Firefox': '*'

   }

 };

 const { getMostRecentBrowserWindow, windows: getWindows } = require('../window/utils');

 const { ignoreWindow } = require('../private-browsing/utils');

 const { isPrivateBrowsingSupported } = require('../self');

 const { isGlobalPBSupported } = require('../private-browsing/utils');

 function getWindow(anchor) {

   let window;

   let windows = getWindows("navigator:browser", {

     includePrivate: isPrivateBrowsingSupported || isGlobalPBSupported

   });

   if (anchor) {

     let anchorWindow = anchor.ownerDocument.defaultView.top;

     let anchorDocument = anchorWindow.document;

     // loop thru supported windows

     for each(let enumWindow in windows) {

       // Check if the anchor is in this browser window.

       if (enumWindow == anchorWindow) {

         window = anchorWindow;

         break;

       }

       // Check if the anchor is in a browser tab in this browser window.

       let browser = enumWindow.gBrowser.getBrowserForDocument(anchorDocument);

       if (browser) {

         window = enumWindow;

         break;

       }

       // Look in other subdocuments (sidebar, etc.)?

     }

   }

   // If we didn't find the anchor's window (or we have no anchor),

   // return the most recent browser window.

   if (!window)

     window = getMostRecentBrowserWindow();

   // if the window is not supported, then it should be ignored

   if (ignoreWindow(window)) {

   	return null;

   }

   return window;

 }

 exports.getWindow = getWindow;