selenium-webdriver

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The official WebDriver JavaScript bindings from the Selenium project

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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>webdriver.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/webdriver/webdriver.js</h1><div><table><tr><td><a id="l1"></a><a href="#l1">1</a><td>// Licensed to the Software Freedom Conservancy (SFC) under one<tr><td><a id="l2"></a><a href="#l2">2</a><td>// or more contributor license agreements. See the NOTICE file<tr><td><a id="l3"></a><a href="#l3">3</a><td>// distributed with this work for additional information<tr><td><a id="l4"></a><a href="#l4">4</a><td>// regarding copyright ownership. The SFC licenses this file<tr><td><a id="l5"></a><a href="#l5">5</a><td>// to you under the Apache License, Version 2.0 (the<tr><td><a id="l6"></a><a href="#l6">6</a><td>// "License"); you may not use this file except in compliance<tr><td><a id="l7"></a><a href="#l7">7</a><td>// with the License. You may obtain a copy of the License at<tr><td><a id="l8"></a><a href="#l8">8</a><td>//<tr><td><a id="l9"></a><a href="#l9">9</a><td>// http://www.apache.org/licenses/LICENSE-2.0<tr><td><a id="l10"></a><a href="#l10">10</a><td>//<tr><td><a id="l11"></a><a href="#l11">11</a><td>// Unless required by applicable law or agreed to in writing,<tr><td><a id="l12"></a><a href="#l12">12</a><td>// software distributed under the License is distributed on an<tr><td><a id="l13"></a><a href="#l13">13</a><td>// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<tr><td><a id="l14"></a><a href="#l14">14</a><td>// KIND, either express or implied. See the License for the<tr><td><a id="l15"></a><a href="#l15">15</a><td>// specific language governing permissions and limitations<tr><td><a id="l16"></a><a href="#l16">16</a><td>// under the License.<tr><td><a id="l17"></a><a href="#l17">17</a><td><tr><td><a id="l18"></a><a href="#l18">18</a><td>/**<tr><td><a id="l19"></a><a href="#l19">19</a><td> * @fileoverview The heart of the WebDriver JavaScript API.<tr><td><a id="l20"></a><a href="#l20">20</a><td> */<tr><td><a id="l21"></a><a href="#l21">21</a><td><tr><td><a id="l22"></a><a href="#l22">22</a><td>goog.provide('webdriver.Alert');<tr><td><a id="l23"></a><a href="#l23">23</a><td>goog.provide('webdriver.AlertPromise');<tr><td><a id="l24"></a><a href="#l24">24</a><td>goog.provide('webdriver.FileDetector');<tr><td><a id="l25"></a><a href="#l25">25</a><td>goog.provide('webdriver.UnhandledAlertError');<tr><td><a id="l26"></a><a href="#l26">26</a><td>goog.provide('webdriver.WebDriver');<tr><td><a id="l27"></a><a href="#l27">27</a><td>goog.provide('webdriver.WebElement');<tr><td><a id="l28"></a><a href="#l28">28</a><td>goog.provide('webdriver.WebElementPromise');<tr><td><a id="l29"></a><a href="#l29">29</a><td><tr><td><a id="l30"></a><a href="#l30">30</a><td>goog.require('bot.Error');<tr><td><a id="l31"></a><a href="#l31">31</a><td>goog.require('bot.ErrorCode');<tr><td><a id="l32"></a><a href="#l32">32</a><td>goog.require('bot.response');<tr><td><a id="l33"></a><a href="#l33">33</a><td>goog.require('goog.array');<tr><td><a id="l34"></a><a href="#l34">34</a><td>goog.require('goog.object');<tr><td><a id="l35"></a><a href="#l35">35</a><td>goog.require('webdriver.ActionSequence');<tr><td><a id="l36"></a><a href="#l36">36</a><td>goog.require('webdriver.Command');<tr><td><a id="l37"></a><a href="#l37">37</a><td>goog.require('webdriver.CommandName');<tr><td><a id="l38"></a><a href="#l38">38</a><td>goog.require('webdriver.Key');<tr><td><a id="l39"></a><a href="#l39">39</a><td>goog.require('webdriver.Locator');<tr><td><a id="l40"></a><a href="#l40">40</a><td>goog.require('webdriver.Serializable');<tr><td><a id="l41"></a><a href="#l41">41</a><td>goog.require('webdriver.Session');<tr><td><a id="l42"></a><a href="#l42">42</a><td>goog.require('webdriver.TouchSequence');<tr><td><a id="l43"></a><a href="#l43">43</a><td>goog.require('webdriver.logging');<tr><td><a id="l44"></a><a href="#l44">44</a><td>goog.require('webdriver.promise');<tr><td><a id="l45"></a><a href="#l45">45</a><td>goog.require('webdriver.until');<tr><td><a id="l46"></a><a href="#l46">46</a><td><tr><td><a id="l47"></a><a href="#l47">47</a><td><tr><td><a id="l48"></a><a href="#l48">48</a><td>//////////////////////////////////////////////////////////////////////////////<tr><td><a id="l49"></a><a href="#l49">49</a><td>//<tr><td><a id="l50"></a><a href="#l50">50</a><td>// webdriver.WebDriver<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><tr><td><a id="l55"></a><a href="#l55">55</a><td><tr><td><a id="l56"></a><a href="#l56">56</a><td>/**<tr><td><a id="l57"></a><a href="#l57">57</a><td> * Creates a new WebDriver client, which provides control over a browser.<tr><td><a id="l58"></a><a href="#l58">58</a><td> *<tr><td><a id="l59"></a><a href="#l59">59</a><td> * Every WebDriver command returns a {@code webdriver.promise.Promise} that<tr><td><a id="l60"></a><a href="#l60">60</a><td> * represents the result of that command. Callbacks may be registered on this<tr><td><a id="l61"></a><a href="#l61">61</a><td> * object to manipulate the command result or catch an expected error. Any<tr><td><a id="l62"></a><a href="#l62">62</a><td> * commands scheduled with a callback are considered sub-commands and will<tr><td><a id="l63"></a><a href="#l63">63</a><td> * execute before the next command in the current frame. For example:<tr><td><a id="l64"></a><a href="#l64">64</a><td> *<tr><td><a id="l65"></a><a href="#l65">65</a><td> * var message = [];<tr><td><a id="l66"></a><a href="#l66">66</a><td> * driver.call(message.push, message, 'a').then(function() {<tr><td><a id="l67"></a><a href="#l67">67</a><td> * driver.call(message.push, message, 'b');<tr><td><a id="l68"></a><a href="#l68">68</a><td> * });<tr><td><a id="l69"></a><a href="#l69">69</a><td> * driver.call(message.push, message, 'c');<tr><td><a id="l70"></a><a href="#l70">70</a><td> * driver.call(function() {<tr><td><a id="l71"></a><a href="#l71">71</a><td> * alert('message is abc? ' + (message.join('') == 'abc'));<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> * @param {!(webdriver.Session|webdriver.promise.Promise)} session Either a<tr><td><a id="l75"></a><a href="#l75">75</a><td> * known session or a promise that will be resolved to a session.<tr><td><a id="l76"></a><a href="#l76">76</a><td> * @param {!webdriver.CommandExecutor} executor The executor to use when<tr><td><a id="l77"></a><a href="#l77">77</a><td> * sending commands to the browser.<tr><td><a id="l78"></a><a href="#l78">78</a><td> * @param {webdriver.promise.ControlFlow=} opt_flow The flow to<tr><td><a id="l79"></a><a href="#l79">79</a><td> * schedule commands through. Defaults to the active flow object.<tr><td><a id="l80"></a><a href="#l80">80</a><td> * @constructor<tr><td><a id="l81"></a><a href="#l81">81</a><td> */<tr><td><a id="l82"></a><a href="#l82">82</a><td>webdriver.WebDriver = function(session, executor, opt_flow) {<tr><td><a id="l83"></a><a href="#l83">83</a><td><tr><td><a id="l84"></a><a href="#l84">84</a><td> /** @private {!(webdriver.Session|webdriver.promise.Promise)} */<tr><td><a id="l85"></a><a href="#l85">85</a><td> this.session_ = session;<tr><td><a id="l86"></a><a href="#l86">86</a><td><tr><td><a id="l87"></a><a href="#l87">87</a><td> /** @private {!webdriver.CommandExecutor} */<tr><td><a id="l88"></a><a href="#l88">88</a><td> this.executor_ = executor;<tr><td><a id="l89"></a><a href="#l89">89</a><td><tr><td><a id="l90"></a><a href="#l90">90</a><td> /** @private {!webdriver.promise.ControlFlow} */<tr><td><a id="l91"></a><a href="#l91">91</a><td> this.flow_ = opt_flow || webdriver.promise.controlFlow();<tr><td><a id="l92"></a><a href="#l92">92</a><td><tr><td><a id="l93"></a><a href="#l93">93</a><td> /** @private {webdriver.FileDetector} */<tr><td><a id="l94"></a><a href="#l94">94</a><td> this.fileDetector_ = null;<tr><td><a id="l95"></a><a href="#l95">95</a><td>};<tr><td><a id="l96"></a><a href="#l96">96</a><td><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> * Creates a new WebDriver client for an existing session.<tr><td><a id="l100"></a><a href="#l100">100</a><td> * @param {!webdriver.CommandExecutor} executor Command executor to use when<tr><td><a id="l101"></a><a href="#l101">101</a><td> * querying for session details.<tr><td><a id="l102"></a><a href="#l102">102</a><td> * @param {string} sessionId ID of the session to attach to.<tr><td><a id="l103"></a><a href="#l103">103</a><td> * @param {webdriver.promise.ControlFlow=} opt_flow The control flow all driver<tr><td><a id="l104"></a><a href="#l104">104</a><td> * commands should execute under. Defaults to the<tr><td><a id="l105"></a><a href="#l105">105</a><td> * {@link webdriver.promise.controlFlow() currently active} control flow.<tr><td><a id="l106"></a><a href="#l106">106</a><td> * @return {!webdriver.WebDriver} A new client for the specified session.<tr><td><a id="l107"></a><a href="#l107">107</a><td> */<tr><td><a id="l108"></a><a href="#l108">108</a><td>webdriver.WebDriver.attachToSession = function(executor, sessionId, opt_flow) {<tr><td><a id="l109"></a><a href="#l109">109</a><td> return webdriver.WebDriver.acquireSession_(executor,<tr><td><a id="l110"></a><a href="#l110">110</a><td> new webdriver.Command(webdriver.CommandName.DESCRIBE_SESSION).<tr><td><a id="l111"></a><a href="#l111">111</a><td> setParameter('sessionId', sessionId),<tr><td><a id="l112"></a><a href="#l112">112</a><td> 'WebDriver.attachToSession()',<tr><td><a id="l113"></a><a href="#l113">113</a><td> opt_flow);<tr><td><a id="l114"></a><a href="#l114">114</a><td>};<tr><td><a id="l115"></a><a href="#l115">115</a><td><tr><td><a id="l116"></a><a href="#l116">116</a><td><tr><td><a id="l117"></a><a href="#l117">117</a><td>/**<tr><td><a id="l118"></a><a href="#l118">118</a><td> * Creates a new WebDriver session.<tr><td><a id="l119"></a><a href="#l119">119</a><td> * @param {!webdriver.CommandExecutor} executor The executor to create the new<tr><td><a id="l120"></a><a href="#l120">120</a><td> * session with.<tr><td><a id="l121"></a><a href="#l121">121</a><td> * @param {!webdriver.Capabilities} desiredCapabilities The desired<tr><td><a id="l122"></a><a href="#l122">122</a><td> * capabilities for the new session.<tr><td><a id="l123"></a><a href="#l123">123</a><td> * @param {webdriver.promise.ControlFlow=} opt_flow The control flow all driver<tr><td><a id="l124"></a><a href="#l124">124</a><td> * commands should execute under, including the initial session creation.<tr><td><a id="l125"></a><a href="#l125">125</a><td> * Defaults to the {@link webdriver.promise.controlFlow() currently active}<tr><td><a id="l126"></a><a href="#l126">126</a><td> * control flow.<tr><td><a id="l127"></a><a href="#l127">127</a><td> * @return {!webdriver.WebDriver} The driver for the newly created session.<tr><td><a id="l128"></a><a href="#l128">128</a><td> */<tr><td><a id="l129"></a><a href="#l129">129</a><td>webdriver.WebDriver.createSession = function(<tr><td><a id="l130"></a><a href="#l130">130</a><td> executor, desiredCapabilities, opt_flow) {<tr><td><a id="l131"></a><a href="#l131">131</a><td> return webdriver.WebDriver.acquireSession_(executor,<tr><td><a id="l132"></a><a href="#l132">132</a><td> new webdriver.Command(webdriver.CommandName.NEW_SESSION).<tr><td><a id="l133"></a><a href="#l133">133</a><td> setParameter('desiredCapabilities', desiredCapabilities),<tr><td><a id="l134"></a><a href="#l134">134</a><td> 'WebDriver.createSession()',<tr><td><a id="l135"></a><a href="#l135">135</a><td> opt_flow);<tr><td><a id="l136"></a><a href="#l136">136</a><td>};<tr><td><a id="l137"></a><a href="#l137">137</a><td><tr><td><a id="l138"></a><a href="#l138">138</a><td><tr><td><a id="l139"></a><a href="#l139">139</a><td>/**<tr><td><a id="l140"></a><a href="#l140">140</a><td> * Sends a command to the server that is expected to return the details for a<tr><td><a id="l141"></a><a href="#l141">141</a><td> * {@link webdriver.Session}. This may either be an existing session, or a<tr><td><a id="l142"></a><a href="#l142">142</a><td> * newly created one.<tr><td><a id="l143"></a><a href="#l143">143</a><td> * @param {!webdriver.CommandExecutor} executor Command executor to use when<tr><td><a id="l144"></a><a href="#l144">144</a><td> * querying for session details.<tr><td><a id="l145"></a><a href="#l145">145</a><td> * @param {!webdriver.Command} command The command to send to fetch the session<tr><td><a id="l146"></a><a href="#l146">146</a><td> * details.<tr><td><a id="l147"></a><a href="#l147">147</a><td> * @param {string} description A descriptive debug label for this action.<tr><td><a id="l148"></a><a href="#l148">148</a><td> * @param {webdriver.promise.ControlFlow=} opt_flow The control flow all driver<tr><td><a id="l149"></a><a href="#l149">149</a><td> * commands should execute under. Defaults to the<tr><td><a id="l150"></a><a href="#l150">150</a><td> * {@link webdriver.promise.controlFlow() currently active} control flow.<tr><td><a id="l151"></a><a href="#l151">151</a><td> * @return {!webdriver.WebDriver} A new WebDriver client for the session.<tr><td><a id="l152"></a><a href="#l152">152</a><td> * @private<tr><td><a id="l153"></a><a href="#l153">153</a><td> */<tr><td><a id="l154"></a><a href="#l154">154</a><td>webdriver.WebDriver.acquireSession_ = function(<tr><td><a id="l155"></a><a href="#l155">155</a><td> executor, command, description, opt_flow) {<tr><td><a id="l156"></a><a href="#l156">156</a><td> var flow = opt_flow || webdriver.promise.controlFlow();<tr><td><a id="l157"></a><a href="#l157">157</a><td> var session = flow.execute(function() {<tr><td><a id="l158"></a><a href="#l158">158</a><td> return webdriver.WebDriver.executeCommand_(executor, command).<tr><td><a id="l159"></a><a href="#l159">159</a><td> then(function(response) {<tr><td><a id="l160"></a><a href="#l160">160</a><td> bot.response.checkResponse(response);<tr><td><a id="l161"></a><a href="#l161">161</a><td> return new webdriver.Session(response['sessionId'],<tr><td><a id="l162"></a><a href="#l162">162</a><td> response['value']);<tr><td><a id="l163"></a><a href="#l163">163</a><td> });<tr><td><a id="l164"></a><a href="#l164">164</a><td> }, description);<tr><td><a id="l165"></a><a href="#l165">165</a><td> return new webdriver.WebDriver(session, executor, flow);<tr><td><a id="l166"></a><a href="#l166">166</a><td>};<tr><td><a id="l167"></a><a href="#l167">167</a><td><tr><td><a id="l168"></a><a href="#l168">168</a><td><tr><td><a id="l169"></a><a href="#l169">169</a><td>/**<tr><td><a id="l170"></a><a href="#l170">170</a><td> * Converts an object to its JSON representation in the WebDriver wire protocol.<tr><td><a id="l171"></a><a href="#l171">171</a><td> * When converting values of type object, the following steps will be taken:<tr><td><a id="l172"></a><a href="#l172">172</a><td> * <ol><tr><td><a id="l173"></a><a href="#l173">173</a><td> * <li>if the object is a WebElement, the return value will be the element's<tr><td><a id="l174"></a><a href="#l174">174</a><td> * server ID<tr><td><a id="l175"></a><a href="#l175">175</a><td> * <li>if the object is a Serializable, its<tr><td><a id="l176"></a><a href="#l176">176</a><td> * {@link webdriver.Serializable#serialize} function will be invoked and<tr><td><a id="l177"></a><a href="#l177">177</a><td> * this algorithm will recursively be applied to the result<tr><td><a id="l178"></a><a href="#l178">178</a><td> * <li>if the object provides a "toJSON" function, this algorithm will<tr><td><a id="l179"></a><a href="#l179">179</a><td> * recursively be applied to the result of that function<tr><td><a id="l180"></a><a href="#l180">180</a><td> * <li>otherwise, the value of each key will be recursively converted according<tr><td><a id="l181"></a><a href="#l181">181</a><td> * to the rules above.<tr><td><a id="l182"></a><a href="#l182">182</a><td> * </ol><tr><td><a id="l183"></a><a href="#l183">183</a><td> *<tr><td><a id="l184"></a><a href="#l184">184</a><td> * @param {*} obj The object to convert.<tr><td><a id="l185"></a><a href="#l185">185</a><td> * @return {!webdriver.promise.Promise.<?>} A promise that will resolve to the<tr><td><a id="l186"></a><a href="#l186">186</a><td> * input value's JSON representation.<tr><td><a id="l187"></a><a href="#l187">187</a><td> * @private<tr><td><a id="l188"></a><a href="#l188">188</a><td> * @see https://github.com/SeleniumHQ/selenium/wiki/JsonWireProtocol<tr><td><a id="l189"></a><a href="#l189">189</a><td> */<tr><td><a id="l190"></a><a href="#l190">190</a><td>webdriver.WebDriver.toWireValue_ = function(obj) {<tr><td><a id="l191"></a><a href="#l191">191</a><td> if (webdriver.promise.isPromise(obj)) {<tr><td><a id="l192"></a><a href="#l192">192</a><td> return obj.then(webdriver.WebDriver.toWireValue_);<tr><td><a id="l193"></a><a href="#l193">193</a><td> }<tr><td><a id="l194"></a><a href="#l194">194</a><td> return webdriver.promise.fulfilled(convertValue(obj));<tr><td><a id="l195"></a><a href="#l195">195</a><td><tr><td><a id="l196"></a><a href="#l196">196</a><td> function convertValue(value) {<tr><td><a id="l197"></a><a href="#l197">197</a><td> switch (goog.typeOf(value)) {<tr><td><a id="l198"></a><a href="#l198">198</a><td> case 'array':<tr><td><a id="l199"></a><a href="#l199">199</a><td> return convertKeys(value, true);<tr><td><a id="l200"></a><a href="#l200">200</a><td> case 'object':<tr><td><a id="l201"></a><a href="#l201">201</a><td> // NB: WebElement is a Serializable, but we know its serialized form<tr><td><a id="l202"></a><a href="#l202">202</a><td> // is a promise for its wire format. This is a micro optimization to<tr><td><a id="l203"></a><a href="#l203">203</a><td> // avoid creating extra promises by recursing on the promised id.<tr><td><a id="l204"></a><a href="#l204">204</a><td> if (value instanceof webdriver.WebElement) {<tr><td><a id="l205"></a><a href="#l205">205</a><td> return value.getId();<tr><td><a id="l206"></a><a href="#l206">206</a><td> }<tr><td><a id="l207"></a><a href="#l207">207</a><td> if (value instanceof webdriver.Serializable) {<tr><td><a id="l208"></a><a href="#l208">208</a><td> return webdriver.WebDriver.toWireValue_(value.serialize());<tr><td><a id="l209"></a><a href="#l209">209</a><td> }<tr><td><a id="l210"></a><a href="#l210">210</a><td> if (goog.isFunction(value.toJSON)) {<tr><td><a id="l211"></a><a href="#l211">211</a><td> return webdriver.WebDriver.toWireValue_(value.toJSON());<tr><td><a id="l212"></a><a href="#l212">212</a><td> }<tr><td><a id="l213"></a><a href="#l213">213</a><td> if (goog.isNumber(value.nodeType) && goog.isString(value.nodeName)) {<tr><td><a id="l214"></a><a href="#l214">214</a><td> throw new TypeError(<tr><td><a id="l215"></a><a href="#l215">215</a><td> 'Invalid argument type: ' + value.nodeName +<tr><td><a id="l216"></a><a href="#l216">216</a><td> '(' + value.nodeType + ')');<tr><td><a id="l217"></a><a href="#l217">217</a><td> }<tr><td><a id="l218"></a><a href="#l218">218</a><td> return convertKeys(value, false);<tr><td><a id="l219"></a><a href="#l219">219</a><td> case 'function':<tr><td><a id="l220"></a><a href="#l220">220</a><td> return '' + value;<tr><td><a id="l221"></a><a href="#l221">221</a><td> case 'undefined':<tr><td><a id="l222"></a><a href="#l222">222</a><td> return null;<tr><td><a id="l223"></a><a href="#l223">223</a><td> default:<tr><td><a id="l224"></a><a href="#l224">224</a><td> return value;<tr><td><a id="l225"></a><a href="#l225">225</a><td> }<tr><td><a id="l226"></a><a href="#l226">226</a><td> }<tr><td><a id="l227"></a><a href="#l227">227</a><td><tr><td><a id="l228"></a><a href="#l228">228</a><td> function convertKeys(obj, isArray) {<tr><td><a id="l229"></a><a href="#l229">229</a><td> var numKeys = isArray ? obj.length : goog.object.getCount(obj);<tr><td><a id="l230"></a><a href="#l230">230</a><td> var ret = isArray ? new Array(numKeys) : {};<tr><td><a id="l231"></a><a href="#l231">231</a><td> if (!numKeys) {<tr><td><a id="l232"></a><a href="#l232">232</a><td> return webdriver.promise.fulfilled(ret);<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> var numResolved = 0;<tr><td><a id="l236"></a><a href="#l236">236</a><td> var done = webdriver.promise.defer();<tr><td><a id="l237"></a><a href="#l237">237</a><td><tr><td><a id="l238"></a><a href="#l238">238</a><td> // forEach will stop iteration at undefined, where we want to convert<tr><td><a id="l239"></a><a href="#l239">239</a><td> // these to null and keep iterating.<tr><td><a id="l240"></a><a href="#l240">240</a><td> var forEachKey = !isArray ? goog.object.forEach : function(arr, fn) {<tr><td><a id="l241"></a><a href="#l241">241</a><td> var n = arr.length;<tr><td><a id="l242"></a><a href="#l242">242</a><td> for (var i = 0; i < n; i++) {<tr><td><a id="l243"></a><a href="#l243">243</a><td> fn(arr[i], i);<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> forEachKey(obj, function(value, key) {<tr><td><a id="l248"></a><a href="#l248">248</a><td> if (webdriver.promise.isPromise(value)) {<tr><td><a id="l249"></a><a href="#l249">249</a><td> value.then(webdriver.WebDriver.toWireValue_).<tr><td><a id="l250"></a><a href="#l250">250</a><td> then(setValue, done.reject);<tr><td><a id="l251"></a><a href="#l251">251</a><td> } else {<tr><td><a id="l252"></a><a href="#l252">252</a><td> webdriver.promise.asap(convertValue(value), setValue, done.reject);<tr><td><a id="l253"></a><a href="#l253">253</a><td> }<tr><td><a id="l254"></a><a href="#l254">254</a><td><tr><td><a id="l255"></a><a href="#l255">255</a><td> function setValue(value) {<tr><td><a id="l256"></a><a href="#l256">256</a><td> ret[key] = value;<tr><td><a id="l257"></a><a href="#l257">257</a><td> maybeFulfill();<tr><td><a id="l258"></a><a href="#l258">258</a><td> }<tr><td><a id="l259"></a><a href="#l259">259</a><td> });<tr><td><a id="l260"></a><a href="#l260">260</a><td><tr><td><a id="l261"></a><a href="#l261">261</a><td> return done.promise;<tr><td><a id="l262"></a><a href="#l262">262</a><td><tr><td><a id="l263"></a><a href="#l263">263</a><td> function maybeFulfill() {<tr><td><a id="l264"></a><a href="#l264">264</a><td> if (++numResolved === numKeys) {<tr><td><a id="l265"></a><a href="#l265">265</a><td> done.fulfill(ret);<tr><td><a id="l266"></a><a href="#l266">266</a><td> }<tr><td><a id="l267"></a><a href="#l267">267</a><td> }<tr><td><a id="l268"></a><a href="#l268">268</a><td> }<tr><td><a id="l269"></a><a href="#l269">269</a><td>};<tr><td><a id="l270"></a><a href="#l270">270</a><td><tr><td><a id="l271"></a><a href="#l271">271</a><td><tr><td><a id="l272"></a><a href="#l272">272</a><td>/**<tr><td><a id="l273"></a><a href="#l273">273</a><td> * Converts a value from its JSON representation according to the WebDriver wire<tr><td><a id="l274"></a><a href="#l274">274</a><td> * protocol. Any JSON object containing a<tr><td><a id="l275"></a><a href="#l275">275</a><td> * {@code webdriver.WebElement.ELEMENT_KEY} key will be decoded to a<tr><td><a id="l276"></a><a href="#l276">276</a><td> * {@code webdriver.WebElement} object. All other values will be passed through<tr><td><a id="l277"></a><a href="#l277">277</a><td> * as is.<tr><td><a id="l278"></a><a href="#l278">278</a><td> * @param {!webdriver.WebDriver} driver The driver instance to use as the<tr><td><a id="l279"></a><a href="#l279">279</a><td> * parent of any unwrapped {@code webdriver.WebElement} values.<tr><td><a id="l280"></a><a href="#l280">280</a><td> * @param {*} value The value to convert.<tr><td><a id="l281"></a><a href="#l281">281</a><td> * @return {*} The converted value.<tr><td><a id="l282"></a><a href="#l282">282</a><td> * @see https://github.com/SeleniumHQ/selenium/wiki/JsonWireProtocol<tr><td><a id="l283"></a><a href="#l283">283</a><td> * @private<tr><td><a id="l284"></a><a href="#l284">284</a><td> */<tr><td><a id="l285"></a><a href="#l285">285</a><td>webdriver.WebDriver.fromWireValue_ = function(driver, value) {<tr><td><a id="l286"></a><a href="#l286">286</a><td> if (goog.isArray(value)) {<tr><td><a id="l287"></a><a href="#l287">287</a><td> value = goog.array.map(/**@type {goog.array.ArrayLike}*/ (value),<tr><td><a id="l288"></a><a href="#l288">288</a><td> goog.partial(webdriver.WebDriver.fromWireValue_, driver));<tr><td><a id="l289"></a><a href="#l289">289</a><td> } else if (value && goog.isObject(value) && !goog.isFunction(value)) {<tr><td><a id="l290"></a><a href="#l290">290</a><td> if (webdriver.WebElement.ELEMENT_KEY in value) {<tr><td><a id="l291"></a><a href="#l291">291</a><td> value = new webdriver.WebElement(driver, value);<tr><td><a id="l292"></a><a href="#l292">292</a><td> } else {<tr><td><a id="l293"></a><a href="#l293">293</a><td> value = goog.object.map(/**@type {!Object}*/ (value),<tr><td><a id="l294"></a><a href="#l294">294</a><td> goog.partial(webdriver.WebDriver.fromWireValue_, driver));<tr><td><a id="l295"></a><a href="#l295">295</a><td> }<tr><td><a id="l296"></a><a href="#l296">296</a><td> }<tr><td><a id="l297"></a><a href="#l297">297</a><td> return value;<tr><td><a id="l298"></a><a href="#l298">298</a><td>};<tr><td><a id="l299"></a><a href="#l299">299</a><td><tr><td><a id="l300"></a><a href="#l300">300</a><td><tr><td><a id="l301"></a><a href="#l301">301</a><td>/**<tr><td><a id="l302"></a><a href="#l302">302</a><td> * Translates a command to its wire-protocol representation before passing it<tr><td><a id="l303"></a><a href="#l303">303</a><td> * to the given {@code executor} for execution.<tr><td><a id="l304"></a><a href="#l304">304</a><td> * @param {!webdriver.CommandExecutor} executor The executor to use.<tr><td><a id="l305"></a><a href="#l305">305</a><td> * @param {!webdriver.Command} command The command to execute.<tr><td><a id="l306"></a><a href="#l306">306</a><td> * @return {!webdriver.promise.Promise} A promise that will resolve with the<tr><td><a id="l307"></a><a href="#l307">307</a><td> * command response.<tr><td><a id="l308"></a><a href="#l308">308</a><td> * @private<tr><td><a id="l309"></a><a href="#l309">309</a><td> */<tr><td><a id="l310"></a><a href="#l310">310</a><td>webdriver.WebDriver.executeCommand_ = function(executor, command) {<tr><td><a id="l311"></a><a href="#l311">311</a><td> return webdriver.WebDriver.toWireValue_(command.getParameters()).<tr><td><a id="l312"></a><a href="#l312">312</a><td> then(function(parameters) {<tr><td><a id="l313"></a><a href="#l313">313</a><td> command.setParameters(parameters);<tr><td><a id="l314"></a><a href="#l314">314</a><td> return webdriver.promise.checkedNodeCall(<tr><td><a id="l315"></a><a href="#l315">315</a><td> goog.bind(executor.execute, executor, command));<tr><td><a id="l316"></a><a href="#l316">316</a><td> });<tr><td><a id="l317"></a><a href="#l317">317</a><td>};<tr><td><a id="l318"></a><a href="#l318">318</a><td><tr><td><a id="l319"></a><a href="#l319">319</a><td><tr><td><a id="l320"></a><a href="#l320">320</a><td>/**<tr><td><a id="l321"></a><a href="#l321">321</a><td> * @return {!webdriver.promise.ControlFlow} The control flow used by this<tr><td><a id="l322"></a><a href="#l322">322</a><td> * instance.<tr><td><a id="l323"></a><a href="#l323">323</a><td> */<tr><td><a id="l324"></a><a href="#l324">324</a><td>webdriver.WebDriver.prototype.controlFlow = function() {<tr><td><a id="l325"></a><a href="#l325">325</a><td> return this.flow_;<tr><td><a id="l326"></a><a href="#l326">326</a><td>};<tr><td><a id="l327"></a><a href="#l327">327</a><td><tr><td><a id="l328"></a><a href="#l328">328</a><td><tr><td><a id="l329"></a><a href="#l329">329</a><td>/**<tr><td><a id="l330"></a><a href="#l330">330</a><td> * Schedules a {@code webdriver.Command} to be executed by this driver's<tr><td><a id="l331"></a><a href="#l331">331</a><td> * {@code webdriver.CommandExecutor}.<tr><td><a id="l332"></a><a href="#l332">332</a><td> * @param {!webdriver.Command} command The command to schedule.<tr><td><a id="l333"></a><a href="#l333">333</a><td> * @param {string} description A description of the command for debugging.<tr><td><a id="l334"></a><a href="#l334">334</a><td> * @return {!webdriver.promise.Promise.<T>} A promise that will be resolved<tr><td><a id="l335"></a><a href="#l335">335</a><td> * with the command result.<tr><td><a id="l336"></a><a href="#l336">336</a><td> * @template T<tr><td><a id="l337"></a><a href="#l337">337</a><td> */<tr><td><a id="l338"></a><a href="#l338">338</a><td>webdriver.WebDriver.prototype.schedule = function(command, description) {<tr><td><a id="l339"></a><a href="#l339">339</a><td> var self = this;<tr><td><a id="l340"></a><a href="#l340">340</a><td><tr><td><a id="l341"></a><a href="#l341">341</a><td> checkHasNotQuit();<tr><td><a id="l342"></a><a href="#l342">342</a><td> command.setParameter('sessionId', this.session_);<tr><td><a id="l343"></a><a href="#l343">343</a><td><tr><td><a id="l344"></a><a href="#l344">344</a><td> // If any of the command parameters are rejected promises, those<tr><td><a id="l345"></a><a href="#l345">345</a><td> // rejections may be reported as unhandled before the control flow<tr><td><a id="l346"></a><a href="#l346">346</a><td> // attempts to execute the command. To ensure parameters errors<tr><td><a id="l347"></a><a href="#l347">347</a><td> // propagate through the command itself, we resolve all of the<tr><td><a id="l348"></a><a href="#l348">348</a><td> // command parameters now, but suppress any errors until the ControlFlow<tr><td><a id="l349"></a><a href="#l349">349</a><td> // actually executes the command. This addresses scenarios like catching<tr><td><a id="l350"></a><a href="#l350">350</a><td> // an element not found error in:<tr><td><a id="l351"></a><a href="#l351">351</a><td> //<tr><td><a id="l352"></a><a href="#l352">352</a><td> // driver.findElement(By.id('foo')).click().thenCatch(function(e) {<tr><td><a id="l353"></a><a href="#l353">353</a><td> // if (e.code === bot.ErrorCode.NO_SUCH_ELEMENT) {<tr><td><a id="l354"></a><a href="#l354">354</a><td> // // Do something.<tr><td><a id="l355"></a><a href="#l355">355</a><td> // }<tr><td><a id="l356"></a><a href="#l356">356</a><td> // });<tr><td><a id="l357"></a><a href="#l357">357</a><td> var prepCommand = webdriver.WebDriver.toWireValue_(command.getParameters());<tr><td><a id="l358"></a><a href="#l358">358</a><td> prepCommand.thenCatch(goog.nullFunction);<tr><td><a id="l359"></a><a href="#l359">359</a><td><tr><td><a id="l360"></a><a href="#l360">360</a><td> var flow = this.flow_;<tr><td><a id="l361"></a><a href="#l361">361</a><td> var executor = this.executor_;<tr><td><a id="l362"></a><a href="#l362">362</a><td> return flow.execute(function() {<tr><td><a id="l363"></a><a href="#l363">363</a><td> // A call to WebDriver.quit() may have been scheduled in the same event<tr><td><a id="l364"></a><a href="#l364">364</a><td> // loop as this |command|, which would prevent us from detecting that the<tr><td><a id="l365"></a><a href="#l365">365</a><td> // driver has quit above. Therefore, we need to make another quick check.<tr><td><a id="l366"></a><a href="#l366">366</a><td> // We still check above so we can fail as early as possible.<tr><td><a id="l367"></a><a href="#l367">367</a><td> checkHasNotQuit();<tr><td><a id="l368"></a><a href="#l368">368</a><td><tr><td><a id="l369"></a><a href="#l369">369</a><td> // Retrieve resolved command parameters; any previously suppressed errors<tr><td><a id="l370"></a><a href="#l370">370</a><td> // will now propagate up through the control flow as part of the command<tr><td><a id="l371"></a><a href="#l371">371</a><td> // execution.<tr><td><a id="l372"></a><a href="#l372">372</a><td> return prepCommand.then(function(parameters) {<tr><td><a id="l373"></a><a href="#l373">373</a><td> command.setParameters(parameters);<tr><td><a id="l374"></a><a href="#l374">374</a><td> return webdriver.promise.checkedNodeCall(<tr><td><a id="l375"></a><a href="#l375">375</a><td> goog.bind(executor.execute, executor, command));<tr><td><a id="l376"></a><a href="#l376">376</a><td> });<tr><td><a id="l377"></a><a href="#l377">377</a><td> }, description).then(function(response) {<tr><td><a id="l378"></a><a href="#l378">378</a><td> try {<tr><td><a id="l379"></a><a href="#l379">379</a><td> bot.response.checkResponse(response);<tr><td><a id="l380"></a><a href="#l380">380</a><td> } catch (ex) {<tr><td><a id="l381"></a><a href="#l381">381</a><td> var value = response['value'];<tr><td><a id="l382"></a><a href="#l382">382</a><td> if (ex.code === bot.ErrorCode.UNEXPECTED_ALERT_OPEN) {<tr><td><a id="l383"></a><a href="#l383">383</a><td> var text = value && value['alert'] ? value['alert']['text'] : '';<tr><td><a id="l384"></a><a href="#l384">384</a><td> throw new webdriver.UnhandledAlertError(ex.message, text,<tr><td><a id="l385"></a><a href="#l385">385</a><td> new webdriver.Alert(self, text));<tr><td><a id="l386"></a><a href="#l386">386</a><td> }<tr><td><a id="l387"></a><a href="#l387">387</a><td> throw ex;<tr><td><a id="l388"></a><a href="#l388">388</a><td> }<tr><td><a id="l389"></a><a href="#l389">389</a><td> return webdriver.WebDriver.fromWireValue_(self, response['value']);<tr><td><a id="l390"></a><a href="#l390">390</a><td> });<tr><td><a id="l391"></a><a href="#l391">391</a><td><tr><td><a id="l392"></a><a href="#l392">392</a><td> function checkHasNotQuit() {<tr><td><a id="l393"></a><a href="#l393">393</a><td> if (!self.session_) {<tr><td><a id="l394"></a><a href="#l394">394</a><td> throw new Error('This driver instance does not have a valid session ID ' +<tr><td><a id="l395"></a><a href="#l395">395</a><td> '(did you call WebDriver.quit()?) and may no longer be ' +<tr><td><a id="l396"></a><a href="#l396">396</a><td> 'used.');<tr><td><a id="l397"></a><a href="#l397">397</a><td> }<tr><td><a id="l398"></a><a href="#l398">398</a><td> }<tr><td><a id="l399"></a><a href="#l399">399</a><td>};<tr><td><a id="l400"></a><a href="#l400">400</a><td><tr><td><a id="l401"></a><a href="#l401">401</a><td><tr><td><a id="l402"></a><a href="#l402">402</a><td>/**<tr><td><a id="l403"></a><a href="#l403">403</a><td> * Sets the {@linkplain webdriver.FileDetector file detector} that should be<tr><td><a id="l404"></a><a href="#l404">404</a><td> * used with this instance.<tr><td><a id="l405"></a><a href="#l405">405</a><td> * @param {webdriver.FileDetector} detector The detector to use or {@code null}.<tr><td><a id="l406"></a><a href="#l406">406</a><td> */<tr><td><a id="l407"></a><a href="#l407">407</a><td>webdriver.WebDriver.prototype.setFileDetector = function(detector) {<tr><td><a id="l408"></a><a href="#l408">408</a><td> this.fileDetector_ = detector;<tr><td><a id="l409"></a><a href="#l409">409</a><td>};<tr><td><a id="l410"></a><a href="#l410">410</a><td><tr><td><a id="l411"></a><a href="#l411">411</a><td><tr><td><a id="l412"></a><a href="#l412">412</a><td>// ----------------------------------------------------------------------------<tr><td><a id="l413"></a><a href="#l413">413</a><td>// Client command functions:<tr><td><a id="l414"></a><a href="#l414">414</a><td>// ----------------------------------------------------------------------------<tr><td><a id="l415"></a><a href="#l415">415</a><td><tr><td><a id="l416"></a><a href="#l416">416</a><td><tr><td><a id="l417"></a><a href="#l417">417</a><td>/**<tr><td><a id="l418"></a><a href="#l418">418</a><td> * @return {!webdriver.promise.Promise.<!webdriver.Session>} A promise for this<tr><td><a id="l419"></a><a href="#l419">419</a><td> * client's session.<tr><td><a id="l420"></a><a href="#l420">420</a><td> */<tr><td><a id="l421"></a><a href="#l421">421</a><td>webdriver.WebDriver.prototype.getSession = function() {<tr><td><a id="l422"></a><a href="#l422">422</a><td> return webdriver.promise.when(this.session_);<tr><td><a id="l423"></a><a href="#l423">423</a><td>};<tr><td><a id="l424"></a><a href="#l424">424</a><td><tr><td><a id="l425"></a><a href="#l425">425</a><td><tr><td><a id="l426"></a><a href="#l426">426</a><td>/**<tr><td><a id="l427"></a><a href="#l427">427</a><td> * @return {!webdriver.promise.Promise.<!webdriver.Capabilities>} A promise<tr><td><a id="l428"></a><a href="#l428">428</a><td> * that will resolve with the this instance's capabilities.<tr><td><a id="l429"></a><a href="#l429">429</a><td> */<tr><td><a id="l430"></a><a href="#l430">430</a><td>webdriver.WebDriver.prototype.getCapabilities = function() {<tr><td><a id="l431"></a><a href="#l431">431</a><td> return webdriver.promise.when(this.session_, function(session) {<tr><td><a id="l432"></a><a href="#l432">432</a><td> return session.getCapabilities();<tr><td><a id="l433"></a><a href="#l433">433</a><td> });<tr><td><a id="l434"></a><a href="#l434">434</a><td>};<tr><td><a id="l435"></a><a href="#l435">435</a><td><tr><td><a id="l436"></a><a href="#l436">436</a><td><tr><td><a id="l437"></a><a href="#l437">437</a><td>/**<tr><td><a id="l438"></a><a href="#l438">438</a><td> * Schedules a command to quit the current session. After calling quit, this<tr><td><a id="l439"></a><a href="#l439">439</a><td> * instance will be invalidated and may no longer be used to issue commands<tr><td><a id="l440"></a><a href="#l440">440</a><td> * against the browser.<tr><td><a id="l441"></a><a href="#l441">441</a><td> * @return {!webdriver.promise.Promise.<void>} A promise that will be resolved<tr><td><a id="l442"></a><a href="#l442">442</a><td> * when the command has completed.<tr><td><a id="l443"></a><a href="#l443">443</a><td> */<tr><td><a id="l444"></a><a href="#l444">444</a><td>webdriver.WebDriver.prototype.quit = function() {<tr><td><a id="l445"></a><a href="#l445">445</a><td> var result = this.schedule(<tr><td><a id="l446"></a><a href="#l446">446</a><td> new webdriver.Command(webdriver.CommandName.QUIT),<tr><td><a id="l447"></a><a href="#l447">447</a><td> 'WebDriver.quit()');<tr><td><a id="l448"></a><a href="#l448">448</a><td> // Delete our session ID when the quit command finishes; this will allow us to<tr><td><a id="l449"></a><a href="#l449">449</a><td> // throw an error when attemnpting to use a driver post-quit.<tr><td><a id="l450"></a><a href="#l450">450</a><td> return result.thenFinally(goog.bind(function() {<tr><td><a id="l451"></a><a href="#l451">451</a><td> delete this.session_;<tr><td><a id="l452"></a><a href="#l452">452</a><td> }, this));<tr><td><a id="l453"></a><a href="#l453">453</a><td>};<tr><td><a id="l454"></a><a href="#l454">454</a><td><tr><td><a id="l455"></a><a href="#l455">455</a><td><tr><td><a id="l456"></a><a href="#l456">456</a><td>/**<tr><td><a id="l457"></a><a href="#l457">457</a><td> * Creates a new action sequence using this driver. The sequence will not be<tr><td><a id="l458"></a><a href="#l458">458</a><td> * scheduled for execution until {@link webdriver.ActionSequence#perform} is<tr><td><a id="l459"></a><a href="#l459">459</a><td> * called. Example:<tr><td><a id="l460"></a><a href="#l460">460</a><td> *<tr><td><a id="l461"></a><a href="#l461">461</a><td> * driver.actions().<tr><td><a id="l462"></a><a href="#l462">462</a><td> * mouseDown(element1).<tr><td><a id="l463"></a><a href="#l463">463</a><td> * mouseMove(element2).<tr><td><a id="l464"></a><a href="#l464">464</a><td> * mouseUp().<tr><td><a id="l465"></a><a href="#l465">465</a><td> * perform();<tr><td><a id="l466"></a><a href="#l466">466</a><td> *<tr><td><a id="l467"></a><a href="#l467">467</a><td> * @return {!webdriver.ActionSequence} A new action sequence for this instance.<tr><td><a id="l468"></a><a href="#l468">468</a><td> */<tr><td><a id="l469"></a><a href="#l469">469</a><td>webdriver.WebDriver.prototype.actions = function() {<tr><td><a id="l470"></a><a href="#l470">470</a><td> return new webdriver.ActionSequence(this);<tr><td><a id="l471"></a><a href="#l471">471</a><td>};<tr><td><a id="l472"></a><a href="#l472">472</a><td><tr><td><a id="l473"></a><a href="#l473">473</a><td><tr><td><a id="l474"></a><a href="#l474">474</a><td>/**<tr><td><a id="l475"></a><a href="#l475">475</a><td> * Creates a new touch sequence using this driver. The sequence will not be<tr><td><a id="l476"></a><a href="#l476">476</a><td> * scheduled for execution until {@link webdriver.TouchSequence#perform} is<tr><td><a id="l477"></a><a href="#l477">477</a><td> * called. Example:<tr><td><a id="l478"></a><a href="#l478">478</a><td> *<tr><td><a id="l479"></a><a href="#l479">479</a><td> * driver.touchActions().<tr><td><a id="l480"></a><a href="#l480">480</a><td> * tap(element1).<tr><td><a id="l481"></a><a href="#l481">481</a><td> * doubleTap(element2).<tr><td><a id="l482"></a><a href="#l482">482</a><td> * perform();<tr><td><a id="l483"></a><a href="#l483">483</a><td> *<tr><td><a id="l484"></a><a href="#l484">484</a><td> * @return {!webdriver.TouchSequence} A new touch sequence for this instance.<tr><td><a id="l485"></a><a href="#l485">485</a><td> */<tr><td><a id="l486"></a><a href="#l486">486</a><td>webdriver.WebDriver.prototype.touchActions = function() {<tr><td><a id="l487"></a><a href="#l487">487</a><td> return new webdriver.TouchSequence(this);<tr><td><a id="l488"></a><a href="#l488">488</a><td>};<tr><td><a id="l489"></a><a href="#l489">489</a><td><tr><td><a id="l490"></a><a href="#l490">490</a><td><tr><td><a id="l491"></a><a href="#l491">491</a><td>/**<tr><td><a id="l492"></a><a href="#l492">492</a><td> * Schedules a command to execute JavaScript in the context of the currently<tr><td><a id="l493"></a><a href="#l493">493</a><td> * selected frame or window. The script fragment will be executed as the body<tr><td><a id="l494"></a><a href="#l494">494</a><td> * of an anonymous function. If the script is provided as a function object,<tr><td><a id="l495"></a><a href="#l495">495</a><td> * that function will be converted to a string for injection into the target<tr><td><a id="l496"></a><a href="#l496">496</a><td> * window.<tr><td><a id="l497"></a><a href="#l497">497</a><td> *<tr><td><a id="l498"></a><a href="#l498">498</a><td> * Any arguments provided in addition to the script will be included as script<tr><td><a id="l499"></a><a href="#l499">499</a><td> * arguments and may be referenced using the {@code arguments} object.<tr><td><a id="l500"></a><a href="#l500">500</a><td> * Arguments may be a boolean, number, string, or {@code webdriver.WebElement}.<tr><td><a id="l501"></a><a href="#l501">501</a><td> * Arrays and objects may also be used as script arguments as long as each item<tr><td><a id="l502"></a><a href="#l502">502</a><td> * adheres to the types previously mentioned.<tr><td><a id="l503"></a><a href="#l503">503</a><td> *<tr><td><a id="l504"></a><a href="#l504">504</a><td> * The script may refer to any variables accessible from the current window.<tr><td><a id="l505"></a><a href="#l505">505</a><td> * Furthermore, the script will execute in the window's context, thus<tr><td><a id="l506"></a><a href="#l506">506</a><td> * {@code document} may be used to refer to the current document. Any local<tr><td><a id="l507"></a><a href="#l507">507</a><td> * variables will not be available once the script has finished executing,<tr><td><a id="l508"></a><a href="#l508">508</a><td> * though global variables will persist.<tr><td><a id="l509"></a><a href="#l509">509</a><td> *<tr><td><a id="l510"></a><a href="#l510">510</a><td> * If the script has a return value (i.e. if the script contains a return<tr><td><a id="l511"></a><a href="#l511">511</a><td> * statement), then the following steps will be taken for resolving this<tr><td><a id="l512"></a><a href="#l512">512</a><td> * functions return value:<tr><td><a id="l513"></a><a href="#l513">513</a><td> *<tr><td><a id="l514"></a><a href="#l514">514</a><td> * - For a HTML element, the value will resolve to a<tr><td><a id="l515"></a><a href="#l515">515</a><td> * {@link webdriver.WebElement}<tr><td><a id="l516"></a><a href="#l516">516</a><td> * - Null and undefined return values will resolve to null</li><tr><td><a id="l517"></a><a href="#l517">517</a><td> * - Booleans, numbers, and strings will resolve as is</li><tr><td><a id="l518"></a><a href="#l518">518</a><td> * - Functions will resolve to their string representation</li><tr><td><a id="l519"></a><a href="#l519">519</a><td> * - For arrays and objects, each member item will be converted according to<tr><td><a id="l520"></a><a href="#l520">520</a><td> * the rules above<tr><td><a id="l521"></a><a href="#l521">521</a><td> *<tr><td><a id="l522"></a><a href="#l522">522</a><td> * @param {!(string|Function)} script The script to execute.<tr><td><a id="l523"></a><a href="#l523">523</a><td> * @param {...*} var_args The arguments to pass to the script.<tr><td><a id="l524"></a><a href="#l524">524</a><td> * @return {!webdriver.promise.Promise.<T>} A promise that will resolve to the<tr><td><a id="l525"></a><a href="#l525">525</a><td> * scripts return value.<tr><td><a id="l526"></a><a href="#l526">526</a><td> * @template T<tr><td><a id="l527"></a><a href="#l527">527</a><td> */<tr><td><a id="l528"></a><a href="#l528">528</a><td>webdriver.WebDriver.prototype.executeScript = function(script, var_args) {<tr><td><a id="l529"></a><a href="#l529">529</a><td> if (goog.isFunction(script)) {<tr><td><a id="l530"></a><a href="#l530">530</a><td> script = 'return (' + script + ').apply(null, arguments);';<tr><td><a id="l531"></a><a href="#l531">531</a><td> }<tr><td><a id="l532"></a><a href="#l532">532</a><td> var args = arguments.length > 1 ? goog.array.slice(arguments, 1) : [];<tr><td><a id="l533"></a><a href="#l533">533</a><td> return this.schedule(<tr><td><a id="l534"></a><a href="#l534">534</a><td> new webdriver.Command(webdriver.CommandName.EXECUTE_SCRIPT).<tr><td><a id="l535"></a><a href="#l535">535</a><td> setParameter('script', script).<tr><td><a id="l536"></a><a href="#l536">536</a><td> setParameter('args', args),<tr><td><a id="l537"></a><a href="#l537">537</a><td> 'WebDriver.executeScript()');<tr><td><a id="l538"></a><a href="#l538">538</a><td>};<tr><td><a id="l539"></a><a href="#l539">539</a><td><tr><td><a id="l540"></a><a href="#l540">540</a><td><tr><td><a id="l541"></a><a href="#l541">541</a><td>/**<tr><td><a id="l542"></a><a href="#l542">542</a><td> * Schedules a command to execute asynchronous JavaScript in the context of the<tr><td><a id="l543"></a><a href="#l543">543</a><td> * currently selected frame or window. The script fragment will be executed as<tr><td><a id="l544"></a><a href="#l544">544</a><td> * the body of an anonymous function. If the script is provided as a function<tr><td><a id="l545"></a><a href="#l545">545</a><td> * object, that function will be converted to a string for injection into the<tr><td><a id="l546"></a><a href="#l546">546</a><td> * target window.<tr><td><a id="l547"></a><a href="#l547">547</a><td> *<tr><td><a id="l548"></a><a href="#l548">548</a><td> * Any arguments provided in addition to the script will be included as script<tr><td><a id="l549"></a><a href="#l549">549</a><td> * arguments and may be referenced using the {@code arguments} object.<tr><td><a id="l550"></a><a href="#l550">550</a><td> * Arguments may be a boolean, number, string, or {@code webdriver.WebElement}.<tr><td><a id="l551"></a><a href="#l551">551</a><td> * Arrays and objects may also be used as script arguments as long as each item<tr><td><a id="l552"></a><a href="#l552">552</a><td> * adheres to the types previously mentioned.<tr><td><a id="l553"></a><a href="#l553">553</a><td> *<tr><td><a id="l554"></a><a href="#l554">554</a><td> * Unlike executing synchronous JavaScript with {@link #executeScript},<tr><td><a id="l555"></a><a href="#l555">555</a><td> * scripts executed with this function must explicitly signal they are finished<tr><td><a i