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": "experimental"

 };

 const { emit, off } = require("./event/core");

 const { PrefsTarget } = require("./preferences/event-target");

 const { preferencesBranch, id } = require("./self");

 const { on } = require("./system/events");

 const ADDON_BRANCH = "extensions." + preferencesBranch + ".";

 const BUTTON_PRESSED = id + "-cmdPressed";

 const target = PrefsTarget({ branchName: ADDON_BRANCH });

 // Listen to clicks on buttons

 function buttonClick({ data }) {

   emit(target, data);

 }

 on(BUTTON_PRESSED, buttonClick);

 module.exports = target;