enumerate-devices-shim/src/js/index.js

Enable a consistent use of navigator.mediaDevices.enumerateDevices on browsers that support it.

/*
 *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */
/* eslint-env node */

'use strict';

// Shimming starts here.
(function() {
  // Utils.
  var logging = require('./utils').log;
  var browserDetails = require('./utils').browserDetails;
  // Export to the adapter global object visible in the browser.
  module.exports.browserDetails = browserDetails;
  module.exports.extractVersion = require('./utils').extractVersion;
  module.exports.disableLog = require('./utils').disableLog;

  // Comment out the line below if you want logging to occur, including logging
  // for the switch statement below. Can also be turned on in the browser via
  // adapter.disableLog(false), but then logging from the switch statement below
  // will not appear.
  require('./utils').disableLog(true);

  // Browser shims.
  var chromeShim = require('./chrome/chrome_shim') || null;
  var firefoxShim = require('./firefox/firefox_shim') || null;

  // Shim browser if found.
  switch (browserDetails.browser) {
    case 'opera': // fallthrough as it uses chrome shims
    case 'chrome':
      logging('enumerateDevices shimming chrome.');
      // Export to the adapter global object visible in the browser.
      module.exports.browserShim = chromeShim;
      chromeShim.shimEnumerateDevices();
      break;
    case 'firefox':
      logging('enumerateDevices shimming firefox.');
      // Export to the adapter global object visible in the browser.
      module.exports.browserShim = firefoxShim;
      firefoxShim.shimEnumerateDevices();
      break;
    default:
      logging('Unsupported browser!');
  }
})();