remoting/webapp/platform.js

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 'use strict';
   6
   7 /** @suppress {duplicate} */
   8 var remoting = remoting || {};
   9
  10 /**
  11  * Returns full Chrome version.
  12  * @return {string?}
  13  */
  14 remoting.getChromeVersion = function() {
  15   var match = new RegExp('Chrome/([0-9.]*)').exec(navigator.userAgent);
  16   if (match && (match.length >= 2)) {
  17     return match[1];
  18   }
  19   return null;
  20 };
  21
  22 /**
  23  * Returns Chrome major version.
  24  * @return {number}
  25  */
  26 remoting.getChromeMajorVersion = function() {
  27   var match = new RegExp('Chrome/([0-9]+)\.').exec(navigator.userAgent);
  28   if (match && (match.length >= 2)) {
  29     return parseInt(match[1], 10);
  30   }
  31   return 0;
  32 };
  33
  34 /**
  35  * Returns whether the app is running on ChromeOS.
  36  *
  37  * @return {boolean} True if the app is running on ChromeOS.
  38  */
  39 remoting.runningOnChromeOS = function() {
  40   return !!navigator.userAgent.match(/\bCrOS\b/);
  41 }