remoting/webapp/base/js/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  * Tests whether we are running on Mac.
  36  *
  37  * @return {boolean} True if the platform is Mac.
  38  */
  39 remoting.platformIsMac = function() {
  40   return navigator.platform.indexOf('Mac') != -1;
  41 }
  42
  43 /**
  44  * Tests whether we are running on Windows.
  45  *
  46  * @return {boolean} True if the platform is Windows.
  47  */
  48 remoting.platformIsWindows = function() {
  49   return (navigator.platform.indexOf('Win32') != -1) ||
  50          (navigator.platform.indexOf('Win64') != -1);
  51 }
  52
  53 /**
  54  * Tests whether we are running on Linux.
  55  *
  56  * @return {boolean} True if the platform is Linux.
  57  */
  58 remoting.platformIsLinux = function() {
  59   return (navigator.platform.indexOf('Linux') != -1) &&
  60          !remoting.platformIsChromeOS();
  61 }
  62
  63 /**
  64  * Tests whether we are running on ChromeOS.
  65  *
  66  * @return {boolean} True if the platform is ChromeOS.
  67  */
  68 remoting.platformIsChromeOS = function() {
  69   return navigator.userAgent.match(/\bCrOS\b/) != null;
  70 }