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node_modules/selenium-webdriver/lib/goog/labs/useragent/browser.js
Maintainability
70.94
Lines of code
245
Difficulty
40.84
Estimated Errors
1.57
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// Copyright 2013 The Closure Library Authors. All Rights Reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS-IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. /** * @fileoverview Closure user agent detection (Browser). * @see <a href="http://www.useragentstring.com/">User agent strings</a> * For more information on rendering engine, platform, or device see the other * sub-namespaces in goog.labs.userAgent, goog.labs.userAgent.platform, * goog.labs.userAgent.device respectively.) * */ goog.provide('goog.labs.userAgent.browser'); goog.require('goog.array'); goog.require('goog.labs.userAgent.util'); goog.require('goog.object'); goog.require('goog.string'); /** * @return {boolean} Whether the user's browser is Opera. * @private */ goog.labs.userAgent.browser.matchOpera_ = function() { return goog.labs.userAgent.util.matchUserAgent('Opera') || goog.labs.userAgent.util.matchUserAgent('OPR'); }; /** * @return {boolean} Whether the user's browser is IE. * @private */ goog.labs.userAgent.browser.matchIE_ = function() { return goog.labs.userAgent.util.matchUserAgent('Trident') || goog.labs.userAgent.util.matchUserAgent('MSIE'); }; /** * @return {boolean} Whether the user's browser is Firefox. * @private */ goog.labs.userAgent.browser.matchFirefox_ = function() { return goog.labs.userAgent.util.matchUserAgent('Firefox'); }; /** * @return {boolean} Whether the user's browser is Safari. * @private */ goog.labs.userAgent.browser.matchSafari_ = function() { return goog.labs.userAgent.util.matchUserAgent('Safari') && !goog.labs.userAgent.util.matchUserAgent('Chrome') && !goog.labs.userAgent.util.matchUserAgent('CriOS') && !goog.labs.userAgent.util.matchUserAgent('Android'); }; /** * @return {boolean} Whether the user's browser is Chrome. * @private */ goog.labs.userAgent.browser.matchChrome_ = function() { return goog.labs.userAgent.util.matchUserAgent('Chrome') || goog.labs.userAgent.util.matchUserAgent('CriOS'); }; /** * @return {boolean} Whether the user's browser is the Android browser. * @private */ goog.labs.userAgent.browser.matchAndroidBrowser_ = function() { // Android can appear in the user agent string for Chrome on Android. // This is not the Android standalone browser if it does. return !goog.labs.userAgent.browser.isChrome() && goog.labs.userAgent.util.matchUserAgent('Android'); }; /** * @return {boolean} Whether the user's browser is Opera. */ goog.labs.userAgent.browser.isOpera = goog.labs.userAgent.browser.matchOpera_; /** * @return {boolean} Whether the user's browser is IE. */ goog.labs.userAgent.browser.isIE = goog.labs.userAgent.browser.matchIE_; /** * @return {boolean} Whether the user's browser is Firefox. */ goog.labs.userAgent.browser.isFirefox = goog.labs.userAgent.browser.matchFirefox_; /** * @return {boolean} Whether the user's browser is Safari. */ goog.labs.userAgent.browser.isSafari = goog.labs.userAgent.browser.matchSafari_; /** * @return {boolean} Whether the user's browser is Chrome. */ goog.labs.userAgent.browser.isChrome = goog.labs.userAgent.browser.matchChrome_; /** * @return {boolean} Whether the user's browser is the Android browser. */ goog.labs.userAgent.browser.isAndroidBrowser = goog.labs.userAgent.browser.matchAndroidBrowser_; /** * For more information, see: * http://docs.aws.amazon.com/silk/latest/developerguide/user-agent.html * @return {boolean} Whether the user's browser is Silk. */ goog.labs.userAgent.browser.isSilk = function() { return goog.labs.userAgent.util.matchUserAgent('Silk'); }; /** * @return {string} The browser version or empty string if version cannot be * determined. Note that for Internet Explorer, this returns the version of * the browser, not the version of the rendering engine. (IE 8 in * compatibility mode will return 8.0 rather than 7.0. To determine the * rendering engine version, look at document.documentMode instead. See * http://msdn.microsoft.com/en-us/library/cc196988(v=vs.85).aspx for more * details.) */ goog.labs.userAgent.browser.getVersion = function() { var userAgentString = goog.labs.userAgent.util.getUserAgent(); // Special case IE since IE's version is inside the parenthesis and // without the '/'. if (goog.labs.userAgent.browser.isIE()) { return goog.labs.userAgent.browser.getIEVersion_(userAgentString); } var versionTuples = goog.labs.userAgent.util.extractVersionTuples( userAgentString); // Construct a map for easy lookup. var versionMap = {}; goog.array.forEach(versionTuples, function(tuple) { // Note that the tuple is of length three, but we only care about the // first two. var key = tuple[0]; var value = tuple[1]; versionMap[key] = value; }); var versionMapHasKey = goog.partial(goog.object.containsKey, versionMap); // Gives the value with the first key it finds, otherwise empty string. function lookUpValueWithKeys(keys) { var key = goog.array.find(keys, versionMapHasKey); return versionMap[key] || ''; } // Check Opera before Chrome since Opera 15+ has "Chrome" in the string. // See // http://my.opera.com/ODIN/blog/2013/07/15/opera-user-agent-strings-opera-15-and-beyond if (goog.labs.userAgent.browser.isOpera()) { // Opera 10 has Version/10.0 but Opera/9.8, so look for "Version" first. // Opera uses 'OPR' for more recent UAs. return lookUpValueWithKeys(['Version', 'Opera', 'OPR']); } if (goog.labs.userAgent.browser.isChrome()) { return lookUpValueWithKeys(['Chrome', 'CriOS']); } // Usually products browser versions are in the third tuple after "Mozilla" // and the engine. var tuple = versionTuples[2]; return tuple && tuple[1] || ''; }; /** * @param {string|number} version The version to check. * @return {boolean} Whether the browser version is higher or the same as the * given version. */ goog.labs.userAgent.browser.isVersionOrHigher = function(version) { return goog.string.compareVersions(goog.labs.userAgent.browser.getVersion(), version) >= 0; }; /** * Determines IE version. More information: * http://msdn.microsoft.com/en-us/library/ie/bg182625(v=vs.85).aspx#uaString * http://msdn.microsoft.com/en-us/library/hh869301(v=vs.85).aspx * http://blogs.msdn.com/b/ie/archive/2010/03/23/introducing-ie9-s-user-agent-string.aspx * http://blogs.msdn.com/b/ie/archive/2009/01/09/the-internet-explorer-8-user-agent-string-updated-edition.aspx * * @param {string} userAgent the User-Agent. * @return {string} * @private */ goog.labs.userAgent.browser.getIEVersion_ = function(userAgent) { // IE11 may identify itself as MSIE 9.0 or MSIE 10.0 due to an IE 11 upgrade // bug. Example UA: // Mozilla/5.0 (MSIE 9.0; Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) // like Gecko. // See http://www.whatismybrowser.com/developers/unknown-user-agent-fragments. var rv = /rv: *([\d\.]*)/.exec(userAgent); if (rv && rv[1]) { return rv[1]; } var version = ''; var msie = /MSIE +([\d\.]+)/.exec(userAgent); if (msie && msie[1]) { // IE in compatibility mode usually identifies itself as MSIE 7.0; in this // case, use the Trident version to determine the version of IE. For more // details, see the links above. var tridentVersion = /Trident\/(\d.\d)/.exec(userAgent); if (msie[1] == '7.0') { if (tridentVersion && tridentVersion[1]) { switch (tridentVersion[1]) { case '4.0': version = '8.0'; break; case '5.0': version = '9.0'; break; case '6.0': version = '10.0'; break; case '7.0': version = '11.0'; break; } } else { version = '7.0'; } } else { version = msie[1]; } } return version; };