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+<!DOCTYPE html><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"><meta http-equiv="Content-Language" content="en"><meta http-equiv="X-UA-Compatible" content="IE=edge"><title>browser.js</title><link href="../../../../../dossier.css" rel="stylesheet" type="text/css"><header><div><form><div><input type="search" placeholder="Search"></div></form></div></header><main><article class="srcfile"><h1>lib/goog/labs/useragent/browser.js</h1><div><table><tr><td><a id="l1"></a><a href="#l1">1</a><td>// Copyright 2013 The Closure Library Authors. All Rights Reserved.<tr><td><a id="l2"></a><a href="#l2">2</a><td>//<tr><td><a id="l3"></a><a href="#l3">3</a><td>// Licensed under the Apache License, Version 2.0 (the "License");<tr><td><a id="l4"></a><a href="#l4">4</a><td>// you may not use this file except in compliance with the License.<tr><td><a id="l5"></a><a href="#l5">5</a><td>// You may obtain a copy of the License at<tr><td><a id="l6"></a><a href="#l6">6</a><td>//<tr><td><a id="l7"></a><a href="#l7">7</a><td>// http://www.apache.org/licenses/LICENSE-2.0<tr><td><a id="l8"></a><a href="#l8">8</a><td>//<tr><td><a id="l9"></a><a href="#l9">9</a><td>// Unless required by applicable law or agreed to in writing, software<tr><td><a id="l10"></a><a href="#l10">10</a><td>// distributed under the License is distributed on an "AS-IS" BASIS,<tr><td><a id="l11"></a><a href="#l11">11</a><td>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<tr><td><a id="l12"></a><a href="#l12">12</a><td>// See the License for the specific language governing permissions and<tr><td><a id="l13"></a><a href="#l13">13</a><td>// limitations under the License.<tr><td><a id="l14"></a><a href="#l14">14</a><td><tr><td><a id="l15"></a><a href="#l15">15</a><td>/**<tr><td><a id="l16"></a><a href="#l16">16</a><td> * @fileoverview Closure user agent detection (Browser).<tr><td><a id="l17"></a><a href="#l17">17</a><td> * @see <a href="http://www.useragentstring.com/">User agent strings</a><tr><td><a id="l18"></a><a href="#l18">18</a><td> * For more information on rendering engine, platform, or device see the other<tr><td><a id="l19"></a><a href="#l19">19</a><td> * sub-namespaces in goog.labs.userAgent, goog.labs.userAgent.platform,<tr><td><a id="l20"></a><a href="#l20">20</a><td> * goog.labs.userAgent.device respectively.)<tr><td><a id="l21"></a><a href="#l21">21</a><td> *<tr><td><a id="l22"></a><a href="#l22">22</a><td> * @author martone@google.com (Andy Martone)<tr><td><a id="l23"></a><a href="#l23">23</a><td> */<tr><td><a id="l24"></a><a href="#l24">24</a><td><tr><td><a id="l25"></a><a href="#l25">25</a><td>goog.provide('goog.labs.userAgent.browser');<tr><td><a id="l26"></a><a href="#l26">26</a><td><tr><td><a id="l27"></a><a href="#l27">27</a><td>goog.require('goog.array');<tr><td><a id="l28"></a><a href="#l28">28</a><td>goog.require('goog.labs.userAgent.util');<tr><td><a id="l29"></a><a href="#l29">29</a><td>goog.require('goog.object');<tr><td><a id="l30"></a><a href="#l30">30</a><td>goog.require('goog.string');<tr><td><a id="l31"></a><a href="#l31">31</a><td><tr><td><a id="l32"></a><a href="#l32">32</a><td><tr><td><a id="l33"></a><a href="#l33">33</a><td>/**<tr><td><a id="l34"></a><a href="#l34">34</a><td> * @return {boolean} Whether the user's browser is Opera.<tr><td><a id="l35"></a><a href="#l35">35</a><td> * @private<tr><td><a id="l36"></a><a href="#l36">36</a><td> */<tr><td><a id="l37"></a><a href="#l37">37</a><td>goog.labs.userAgent.browser.matchOpera_ = function() {<tr><td><a id="l38"></a><a href="#l38">38</a><td> return goog.labs.userAgent.util.matchUserAgent('Opera') ||<tr><td><a id="l39"></a><a href="#l39">39</a><td> goog.labs.userAgent.util.matchUserAgent('OPR');<tr><td><a id="l40"></a><a href="#l40">40</a><td>};<tr><td><a id="l41"></a><a href="#l41">41</a><td><tr><td><a id="l42"></a><a href="#l42">42</a><td><tr><td><a id="l43"></a><a href="#l43">43</a><td>/**<tr><td><a id="l44"></a><a href="#l44">44</a><td> * @return {boolean} Whether the user's browser is IE.<tr><td><a id="l45"></a><a href="#l45">45</a><td> * @private<tr><td><a id="l46"></a><a href="#l46">46</a><td> */<tr><td><a id="l47"></a><a href="#l47">47</a><td>goog.labs.userAgent.browser.matchIE_ = function() {<tr><td><a id="l48"></a><a href="#l48">48</a><td> return goog.labs.userAgent.util.matchUserAgent('Trident') ||<tr><td><a id="l49"></a><a href="#l49">49</a><td> goog.labs.userAgent.util.matchUserAgent('MSIE');<tr><td><a id="l50"></a><a href="#l50">50</a><td>};<tr><td><a id="l51"></a><a href="#l51">51</a><td><tr><td><a id="l52"></a><a href="#l52">52</a><td><tr><td><a id="l53"></a><a href="#l53">53</a><td>/**<tr><td><a id="l54"></a><a href="#l54">54</a><td> * @return {boolean} Whether the user's browser is Firefox.<tr><td><a id="l55"></a><a href="#l55">55</a><td> * @private<tr><td><a id="l56"></a><a href="#l56">56</a><td> */<tr><td><a id="l57"></a><a href="#l57">57</a><td>goog.labs.userAgent.browser.matchFirefox_ = function() {<tr><td><a id="l58"></a><a href="#l58">58</a><td> return goog.labs.userAgent.util.matchUserAgent('Firefox');<tr><td><a id="l59"></a><a href="#l59">59</a><td>};<tr><td><a id="l60"></a><a href="#l60">60</a><td><tr><td><a id="l61"></a><a href="#l61">61</a><td><tr><td><a id="l62"></a><a href="#l62">62</a><td>/**<tr><td><a id="l63"></a><a href="#l63">63</a><td> * @return {boolean} Whether the user's browser is Safari.<tr><td><a id="l64"></a><a href="#l64">64</a><td> * @private<tr><td><a id="l65"></a><a href="#l65">65</a><td> */<tr><td><a id="l66"></a><a href="#l66">66</a><td>goog.labs.userAgent.browser.matchSafari_ = function() {<tr><td><a id="l67"></a><a href="#l67">67</a><td> return goog.labs.userAgent.util.matchUserAgent('Safari') &&<tr><td><a id="l68"></a><a href="#l68">68</a><td> !goog.labs.userAgent.util.matchUserAgent('Chrome') &&<tr><td><a id="l69"></a><a href="#l69">69</a><td> !goog.labs.userAgent.util.matchUserAgent('CriOS') &&<tr><td><a id="l70"></a><a href="#l70">70</a><td> !goog.labs.userAgent.util.matchUserAgent('Android');<tr><td><a id="l71"></a><a href="#l71">71</a><td>};<tr><td><a id="l72"></a><a href="#l72">72</a><td><tr><td><a id="l73"></a><a href="#l73">73</a><td><tr><td><a id="l74"></a><a href="#l74">74</a><td>/**<tr><td><a id="l75"></a><a href="#l75">75</a><td> * @return {boolean} Whether the user's browser is Coast (Opera's Webkit-based<tr><td><a id="l76"></a><a href="#l76">76</a><td> * iOS browser).<tr><td><a id="l77"></a><a href="#l77">77</a><td> * @private<tr><td><a id="l78"></a><a href="#l78">78</a><td> */<tr><td><a id="l79"></a><a href="#l79">79</a><td>goog.labs.userAgent.browser.matchCoast_ = function() {<tr><td><a id="l80"></a><a href="#l80">80</a><td> return goog.labs.userAgent.util.matchUserAgent('Coast');<tr><td><a id="l81"></a><a href="#l81">81</a><td>};<tr><td><a id="l82"></a><a href="#l82">82</a><td><tr><td><a id="l83"></a><a href="#l83">83</a><td><tr><td><a id="l84"></a><a href="#l84">84</a><td>/**<tr><td><a id="l85"></a><a href="#l85">85</a><td> * @return {boolean} Whether the user's browser is iOS Webview.<tr><td><a id="l86"></a><a href="#l86">86</a><td> * @private<tr><td><a id="l87"></a><a href="#l87">87</a><td> */<tr><td><a id="l88"></a><a href="#l88">88</a><td>goog.labs.userAgent.browser.matchIosWebview_ = function() {<tr><td><a id="l89"></a><a href="#l89">89</a><td> // iOS Webview does not show up as Chrome or Safari. Also check for Opera's<tr><td><a id="l90"></a><a href="#l90">90</a><td> // WebKit-based iOS browser, Coast.<tr><td><a id="l91"></a><a href="#l91">91</a><td> return (goog.labs.userAgent.util.matchUserAgent('iPad') ||<tr><td><a id="l92"></a><a href="#l92">92</a><td> goog.labs.userAgent.util.matchUserAgent('iPhone')) &&<tr><td><a id="l93"></a><a href="#l93">93</a><td> !goog.labs.userAgent.browser.matchSafari_() &&<tr><td><a id="l94"></a><a href="#l94">94</a><td> !goog.labs.userAgent.browser.matchChrome_() &&<tr><td><a id="l95"></a><a href="#l95">95</a><td> !goog.labs.userAgent.browser.matchCoast_() &&<tr><td><a id="l96"></a><a href="#l96">96</a><td> goog.labs.userAgent.util.matchUserAgent('AppleWebKit');<tr><td><a id="l97"></a><a href="#l97">97</a><td>};<tr><td><a id="l98"></a><a href="#l98">98</a><td><tr><td><a id="l99"></a><a href="#l99">99</a><td><tr><td><a id="l100"></a><a href="#l100">100</a><td>/**<tr><td><a id="l101"></a><a href="#l101">101</a><td> * @return {boolean} Whether the user's browser is Chrome.<tr><td><a id="l102"></a><a href="#l102">102</a><td> * @private<tr><td><a id="l103"></a><a href="#l103">103</a><td> */<tr><td><a id="l104"></a><a href="#l104">104</a><td>goog.labs.userAgent.browser.matchChrome_ = function() {<tr><td><a id="l105"></a><a href="#l105">105</a><td> return goog.labs.userAgent.util.matchUserAgent('Chrome') ||<tr><td><a id="l106"></a><a href="#l106">106</a><td> goog.labs.userAgent.util.matchUserAgent('CriOS');<tr><td><a id="l107"></a><a href="#l107">107</a><td>};<tr><td><a id="l108"></a><a href="#l108">108</a><td><tr><td><a id="l109"></a><a href="#l109">109</a><td><tr><td><a id="l110"></a><a href="#l110">110</a><td>/**<tr><td><a id="l111"></a><a href="#l111">111</a><td> * @return {boolean} Whether the user's browser is the Android browser.<tr><td><a id="l112"></a><a href="#l112">112</a><td> * @private<tr><td><a id="l113"></a><a href="#l113">113</a><td> */<tr><td><a id="l114"></a><a href="#l114">114</a><td>goog.labs.userAgent.browser.matchAndroidBrowser_ = function() {<tr><td><a id="l115"></a><a href="#l115">115</a><td> // Android can appear in the user agent string for Chrome on Android.<tr><td><a id="l116"></a><a href="#l116">116</a><td> // This is not the Android standalone browser if it does.<tr><td><a id="l117"></a><a href="#l117">117</a><td> return !goog.labs.userAgent.browser.isChrome() &&<tr><td><a id="l118"></a><a href="#l118">118</a><td> goog.labs.userAgent.util.matchUserAgent('Android');<tr><td><a id="l119"></a><a href="#l119">119</a><td><tr><td><a id="l120"></a><a href="#l120">120</a><td>};<tr><td><a id="l121"></a><a href="#l121">121</a><td><tr><td><a id="l122"></a><a href="#l122">122</a><td><tr><td><a id="l123"></a><a href="#l123">123</a><td>/**<tr><td><a id="l124"></a><a href="#l124">124</a><td> * @return {boolean} Whether the user's browser is Opera.<tr><td><a id="l125"></a><a href="#l125">125</a><td> */<tr><td><a id="l126"></a><a href="#l126">126</a><td>goog.labs.userAgent.browser.isOpera = goog.labs.userAgent.browser.matchOpera_;<tr><td><a id="l127"></a><a href="#l127">127</a><td><tr><td><a id="l128"></a><a href="#l128">128</a><td><tr><td><a id="l129"></a><a href="#l129">129</a><td>/**<tr><td><a id="l130"></a><a href="#l130">130</a><td> * @return {boolean} Whether the user's browser is IE.<tr><td><a id="l131"></a><a href="#l131">131</a><td> */<tr><td><a id="l132"></a><a href="#l132">132</a><td>goog.labs.userAgent.browser.isIE = goog.labs.userAgent.browser.matchIE_;<tr><td><a id="l133"></a><a href="#l133">133</a><td><tr><td><a id="l134"></a><a href="#l134">134</a><td><tr><td><a id="l135"></a><a href="#l135">135</a><td>/**<tr><td><a id="l136"></a><a href="#l136">136</a><td> * @return {boolean} Whether the user's browser is Firefox.<tr><td><a id="l137"></a><a href="#l137">137</a><td> */<tr><td><a id="l138"></a><a href="#l138">138</a><td>goog.labs.userAgent.browser.isFirefox =<tr><td><a id="l139"></a><a href="#l139">139</a><td> goog.labs.userAgent.browser.matchFirefox_;<tr><td><a id="l140"></a><a href="#l140">140</a><td><tr><td><a id="l141"></a><a href="#l141">141</a><td><tr><td><a id="l142"></a><a href="#l142">142</a><td>/**<tr><td><a id="l143"></a><a href="#l143">143</a><td> * @return {boolean} Whether the user's browser is Safari.<tr><td><a id="l144"></a><a href="#l144">144</a><td> */<tr><td><a id="l145"></a><a href="#l145">145</a><td>goog.labs.userAgent.browser.isSafari =<tr><td><a id="l146"></a><a href="#l146">146</a><td> goog.labs.userAgent.browser.matchSafari_;<tr><td><a id="l147"></a><a href="#l147">147</a><td><tr><td><a id="l148"></a><a href="#l148">148</a><td><tr><td><a id="l149"></a><a href="#l149">149</a><td>/**<tr><td><a id="l150"></a><a href="#l150">150</a><td> * @return {boolean} Whether the user's browser is Coast (Opera's Webkit-based<tr><td><a id="l151"></a><a href="#l151">151</a><td> * iOS browser).<tr><td><a id="l152"></a><a href="#l152">152</a><td> */<tr><td><a id="l153"></a><a href="#l153">153</a><td>goog.labs.userAgent.browser.isCoast =<tr><td><a id="l154"></a><a href="#l154">154</a><td> goog.labs.userAgent.browser.matchCoast_;<tr><td><a id="l155"></a><a href="#l155">155</a><td><tr><td><a id="l156"></a><a href="#l156">156</a><td><tr><td><a id="l157"></a><a href="#l157">157</a><td>/**<tr><td><a id="l158"></a><a href="#l158">158</a><td> * @return {boolean} Whether the user's browser is iOS Webview.<tr><td><a id="l159"></a><a href="#l159">159</a><td> */<tr><td><a id="l160"></a><a href="#l160">160</a><td>goog.labs.userAgent.browser.isIosWebview =<tr><td><a id="l161"></a><a href="#l161">161</a><td> goog.labs.userAgent.browser.matchIosWebview_;<tr><td><a id="l162"></a><a href="#l162">162</a><td><tr><td><a id="l163"></a><a href="#l163">163</a><td><tr><td><a id="l164"></a><a href="#l164">164</a><td>/**<tr><td><a id="l165"></a><a href="#l165">165</a><td> * @return {boolean} Whether the user's browser is Chrome.<tr><td><a id="l166"></a><a href="#l166">166</a><td> */<tr><td><a id="l167"></a><a href="#l167">167</a><td>goog.labs.userAgent.browser.isChrome =<tr><td><a id="l168"></a><a href="#l168">168</a><td> goog.labs.userAgent.browser.matchChrome_;<tr><td><a id="l169"></a><a href="#l169">169</a><td><tr><td><a id="l170"></a><a href="#l170">170</a><td><tr><td><a id="l171"></a><a href="#l171">171</a><td>/**<tr><td><a id="l172"></a><a href="#l172">172</a><td> * @return {boolean} Whether the user's browser is the Android browser.<tr><td><a id="l173"></a><a href="#l173">173</a><td> */<tr><td><a id="l174"></a><a href="#l174">174</a><td>goog.labs.userAgent.browser.isAndroidBrowser =<tr><td><a id="l175"></a><a href="#l175">175</a><td> goog.labs.userAgent.browser.matchAndroidBrowser_;<tr><td><a id="l176"></a><a href="#l176">176</a><td><tr><td><a id="l177"></a><a href="#l177">177</a><td><tr><td><a id="l178"></a><a href="#l178">178</a><td>/**<tr><td><a id="l179"></a><a href="#l179">179</a><td> * For more information, see:<tr><td><a id="l180"></a><a href="#l180">180</a><td> * http://docs.aws.amazon.com/silk/latest/developerguide/user-agent.html<tr><td><a id="l181"></a><a href="#l181">181</a><td> * @return {boolean} Whether the user's browser is Silk.<tr><td><a id="l182"></a><a href="#l182">182</a><td> */<tr><td><a id="l183"></a><a href="#l183">183</a><td>goog.labs.userAgent.browser.isSilk = function() {<tr><td><a id="l184"></a><a href="#l184">184</a><td> return goog.labs.userAgent.util.matchUserAgent('Silk');<tr><td><a id="l185"></a><a href="#l185">185</a><td>};<tr><td><a id="l186"></a><a href="#l186">186</a><td><tr><td><a id="l187"></a><a href="#l187">187</a><td><tr><td><a id="l188"></a><a href="#l188">188</a><td>/**<tr><td><a id="l189"></a><a href="#l189">189</a><td> * @return {string} The browser version or empty string if version cannot be<tr><td><a id="l190"></a><a href="#l190">190</a><td> * determined. Note that for Internet Explorer, this returns the version of<tr><td><a id="l191"></a><a href="#l191">191</a><td> * the browser, not the version of the rendering engine. (IE 8 in<tr><td><a id="l192"></a><a href="#l192">192</a><td> * compatibility mode will return 8.0 rather than 7.0. To determine the<tr><td><a id="l193"></a><a href="#l193">193</a><td> * rendering engine version, look at document.documentMode instead. See<tr><td><a id="l194"></a><a href="#l194">194</a><td> * http://msdn.microsoft.com/en-us/library/cc196988(v=vs.85).aspx for more<tr><td><a id="l195"></a><a href="#l195">195</a><td> * details.)<tr><td><a id="l196"></a><a href="#l196">196</a><td> */<tr><td><a id="l197"></a><a href="#l197">197</a><td>goog.labs.userAgent.browser.getVersion = function() {<tr><td><a id="l198"></a><a href="#l198">198</a><td> var userAgentString = goog.labs.userAgent.util.getUserAgent();<tr><td><a id="l199"></a><a href="#l199">199</a><td> // Special case IE since IE's version is inside the parenthesis and<tr><td><a id="l200"></a><a href="#l200">200</a><td> // without the '/'.<tr><td><a id="l201"></a><a href="#l201">201</a><td> if (goog.labs.userAgent.browser.isIE()) {<tr><td><a id="l202"></a><a href="#l202">202</a><td> return goog.labs.userAgent.browser.getIEVersion_(userAgentString);<tr><td><a id="l203"></a><a href="#l203">203</a><td> }<tr><td><a id="l204"></a><a href="#l204">204</a><td><tr><td><a id="l205"></a><a href="#l205">205</a><td> var versionTuples = goog.labs.userAgent.util.extractVersionTuples(<tr><td><a id="l206"></a><a href="#l206">206</a><td> userAgentString);<tr><td><a id="l207"></a><a href="#l207">207</a><td><tr><td><a id="l208"></a><a href="#l208">208</a><td> // Construct a map for easy lookup.<tr><td><a id="l209"></a><a href="#l209">209</a><td> var versionMap = {};<tr><td><a id="l210"></a><a href="#l210">210</a><td> goog.array.forEach(versionTuples, function(tuple) {<tr><td><a id="l211"></a><a href="#l211">211</a><td> // Note that the tuple is of length three, but we only care about the<tr><td><a id="l212"></a><a href="#l212">212</a><td> // first two.<tr><td><a id="l213"></a><a href="#l213">213</a><td> var key = tuple[0];<tr><td><a id="l214"></a><a href="#l214">214</a><td> var value = tuple[1];<tr><td><a id="l215"></a><a href="#l215">215</a><td> versionMap[key] = value;<tr><td><a id="l216"></a><a href="#l216">216</a><td> });<tr><td><a id="l217"></a><a href="#l217">217</a><td><tr><td><a id="l218"></a><a href="#l218">218</a><td> var versionMapHasKey = goog.partial(goog.object.containsKey, versionMap);<tr><td><a id="l219"></a><a href="#l219">219</a><td><tr><td><a id="l220"></a><a href="#l220">220</a><td> // Gives the value with the first key it finds, otherwise empty string.<tr><td><a id="l221"></a><a href="#l221">221</a><td> function lookUpValueWithKeys(keys) {<tr><td><a id="l222"></a><a href="#l222">222</a><td> var key = goog.array.find(keys, versionMapHasKey);<tr><td><a id="l223"></a><a href="#l223">223</a><td> return versionMap[key] || '';<tr><td><a id="l224"></a><a href="#l224">224</a><td> }<tr><td><a id="l225"></a><a href="#l225">225</a><td><tr><td><a id="l226"></a><a href="#l226">226</a><td> // Check Opera before Chrome since Opera 15+ has "Chrome" in the string.<tr><td><a id="l227"></a><a href="#l227">227</a><td> // See<tr><td><a id="l228"></a><a href="#l228">228</a><td> // http://my.opera.com/ODIN/blog/2013/07/15/opera-user-agent-strings-opera-15-and-beyond<tr><td><a id="l229"></a><a href="#l229">229</a><td> if (goog.labs.userAgent.browser.isOpera()) {<tr><td><a id="l230"></a><a href="#l230">230</a><td> // Opera 10 has Version/10.0 but Opera/9.8, so look for "Version" first.<tr><td><a id="l231"></a><a href="#l231">231</a><td> // Opera uses 'OPR' for more recent UAs.<tr><td><a id="l232"></a><a href="#l232">232</a><td> return lookUpValueWithKeys(['Version', 'Opera', 'OPR']);<tr><td><a id="l233"></a><a href="#l233">233</a><td> }<tr><td><a id="l234"></a><a href="#l234">234</a><td><tr><td><a id="l235"></a><a href="#l235">235</a><td> if (goog.labs.userAgent.browser.isChrome()) {<tr><td><a id="l236"></a><a href="#l236">236</a><td> return lookUpValueWithKeys(['Chrome', 'CriOS']);<tr><td><a id="l237"></a><a href="#l237">237</a><td> }<tr><td><a id="l238"></a><a href="#l238">238</a><td><tr><td><a id="l239"></a><a href="#l239">239</a><td> // Usually products browser versions are in the third tuple after "Mozilla"<tr><td><a id="l240"></a><a href="#l240">240</a><td> // and the engine.<tr><td><a id="l241"></a><a href="#l241">241</a><td> var tuple = versionTuples[2];<tr><td><a id="l242"></a><a href="#l242">242</a><td> return tuple && tuple[1] || '';<tr><td><a id="l243"></a><a href="#l243">243</a><td>};<tr><td><a id="l244"></a><a href="#l244">244</a><td><tr><td><a id="l245"></a><a href="#l245">245</a><td><tr><td><a id="l246"></a><a href="#l246">246</a><td>/**<tr><td><a id="l247"></a><a href="#l247">247</a><td> * @param {string|number} version The version to check.<tr><td><a id="l248"></a><a href="#l248">248</a><td> * @return {boolean} Whether the browser version is higher or the same as the<tr><td><a id="l249"></a><a href="#l249">249</a><td> * given version.<tr><td><a id="l250"></a><a href="#l250">250</a><td> */<tr><td><a id="l251"></a><a href="#l251">251</a><td>goog.labs.userAgent.browser.isVersionOrHigher = function(version) {<tr><td><a id="l252"></a><a href="#l252">252</a><td> return goog.string.compareVersions(goog.labs.userAgent.browser.getVersion(),<tr><td><a id="l253"></a><a href="#l253">253</a><td> version) >= 0;<tr><td><a id="l254"></a><a href="#l254">254</a><td>};<tr><td><a id="l255"></a><a href="#l255">255</a><td><tr><td><a id="l256"></a><a href="#l256">256</a><td><tr><td><a id="l257"></a><a href="#l257">257</a><td>/**<tr><td><a id="l258"></a><a href="#l258">258</a><td> * Determines IE version. More information:<tr><td><a id="l259"></a><a href="#l259">259</a><td> * http://msdn.microsoft.com/en-us/library/ie/bg182625(v=vs.85).aspx#uaString<tr><td><a id="l260"></a><a href="#l260">260</a><td> * http://msdn.microsoft.com/en-us/library/hh869301(v=vs.85).aspx<tr><td><a id="l261"></a><a href="#l261">261</a><td> * http://blogs.msdn.com/b/ie/archive/2010/03/23/introducing-ie9-s-user-agent-string.aspx<tr><td><a id="l262"></a><a href="#l262">262</a><td> * http://blogs.msdn.com/b/ie/archive/2009/01/09/the-internet-explorer-8-user-agent-string-updated-edition.aspx<tr><td><a id="l263"></a><a href="#l263">263</a><td> *<tr><td><a id="l264"></a><a href="#l264">264</a><td> * @param {string} userAgent the User-Agent.<tr><td><a id="l265"></a><a href="#l265">265</a><td> * @return {string}<tr><td><a id="l266"></a><a href="#l266">266</a><td> * @private<tr><td><a id="l267"></a><a href="#l267">267</a><td> */<tr><td><a id="l268"></a><a href="#l268">268</a><td>goog.labs.userAgent.browser.getIEVersion_ = function(userAgent) {<tr><td><a id="l269"></a><a href="#l269">269</a><td> // IE11 may identify itself as MSIE 9.0 or MSIE 10.0 due to an IE 11 upgrade<tr><td><a id="l270"></a><a href="#l270">270</a><td> // bug. Example UA:<tr><td><a id="l271"></a><a href="#l271">271</a><td> // Mozilla/5.0 (MSIE 9.0; Windows NT 6.1; WOW64; Trident/7.0; rv:11.0)<tr><td><a id="l272"></a><a href="#l272">272</a><td> // like Gecko.<tr><td><a id="l273"></a><a href="#l273">273</a><td> // See http://www.whatismybrowser.com/developers/unknown-user-agent-fragments.<tr><td><a id="l274"></a><a href="#l274">274</a><td> var rv = /rv: *([\d\.]*)/.exec(userAgent);<tr><td><a id="l275"></a><a href="#l275">275</a><td> if (rv && rv[1]) {<tr><td><a id="l276"></a><a href="#l276">276</a><td> return rv[1];<tr><td><a id="l277"></a><a href="#l277">277</a><td> }<tr><td><a id="l278"></a><a href="#l278">278</a><td><tr><td><a id="l279"></a><a href="#l279">279</a><td> var version = '';<tr><td><a id="l280"></a><a href="#l280">280</a><td> var msie = /MSIE +([\d\.]+)/.exec(userAgent);<tr><td><a id="l281"></a><a href="#l281">281</a><td> if (msie && msie[1]) {<tr><td><a id="l282"></a><a href="#l282">282</a><td> // IE in compatibility mode usually identifies itself as MSIE 7.0; in this<tr><td><a id="l283"></a><a href="#l283">283</a><td> // case, use the Trident version to determine the version of IE. For more<tr><td><a id="l284"></a><a href="#l284">284</a><td> // details, see the links above.<tr><td><a id="l285"></a><a href="#l285">285</a><td> var tridentVersion = /Trident\/(\d.\d)/.exec(userAgent);<tr><td><a id="l286"></a><a href="#l286">286</a><td> if (msie[1] == '7.0') {<tr><td><a id="l287"></a><a href="#l287">287</a><td> if (tridentVersion && tridentVersion[1]) {<tr><td><a id="l288"></a><a href="#l288">288</a><td> switch (tridentVersion[1]) {<tr><td><a id="l289"></a><a href="#l289">289</a><td> case '4.0':<tr><td><a id="l290"></a><a href="#l290">290</a><td> version = '8.0';<tr><td><a id="l291"></a><a href="#l291">291</a><td> break;<tr><td><a id="l292"></a><a href="#l292">292</a><td> case '5.0':<tr><td><a id="l293"></a><a href="#l293">293</a><td> version = '9.0';<tr><td><a id="l294"></a><a href="#l294">294</a><td> break;<tr><td><a id="l295"></a><a href="#l295">295</a><td> case '6.0':<tr><td><a id="l296"></a><a href="#l296">296</a><td> version = '10.0';<tr><td><a id="l297"></a><a href="#l297">297</a><td> break;<tr><td><a id="l298"></a><a href="#l298">298</a><td> case '7.0':<tr><td><a id="l299"></a><a href="#l299">299</a><td> version = '11.0';<tr><td><a id="l300"></a><a href="#l300">300</a><td> break;<tr><td><a id="l301"></a><a href="#l301">301</a><td> }<tr><td><a id="l302"></a><a href="#l302">302</a><td> } else {<tr><td><a id="l303"></a><a href="#l303">303</a><td> version = '7.0';<tr><td><a id="l304"></a><a href="#l304">304</a><td> }<tr><td><a id="l305"></a><a href="#l305">305</a><td> } else {<tr><td><a id="l306"></a><a href="#l306">306</a><td> version = msie[1];<tr><td><a id="l307"></a><a href="#l307">307</a><td> }<tr><td><a id="l308"></a><a href="#l308">308</a><td> }<tr><td><a id="l309"></a><a href="#l309">309</a><td> return version;<tr><td><a id="l310"></a><a href="#l310">310</a><td>};</table></div></article><nav><h3><a href="../../../../../index.html">Overview</a></h3><div><input type="checkbox" id="nav-modules" checked/><label 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