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';

 module.metadata = {

   'stability': 'unstable'

 };

 // NOTE: This file should only export Tab instances

 const { getTabForContentWindow, getTabForBrowser: getRawTabForBrowser } = require('./utils');

 const { Tab } = require('./tab');

 const { rawTabNS } = require('./namespace');

 function getTabForWindow(win) {

   let tab = getTabForContentWindow(win);

   // We were unable to find the related tab!

   if (!tab)

     return null;

   return getTabForRawTab(tab) || Tab({ tab: tab });

 }

 exports.getTabForWindow = getTabForWindow;

 // only works on fennec atm

 function getTabForRawTab(rawTab) {

   let tab = rawTabNS(rawTab).tab;

   if (tab) {

     return tab;

   }

   return null;

 }

 exports.getTabForRawTab = getTabForRawTab;

 function getTabForBrowser(browser) {

   return getTabForRawTab(getRawTabForBrowser(browser));

 }

 exports.getTabForBrowser = getTabForBrowser;