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<!DOCTYPE html><meta charset="UTF-8"><meta http-equiv="Content-Language" content="en" /><title>executors.js</title><link href="../dossier.css" rel="stylesheet" type="text/css"><div id="main-wrapper"><input type="checkbox" id="sidenav-toggle" /><main><header><h1>executors.js</h1></header><pre><table class="srcfile"><tbody><tr><td><a name="l1" href="#l1">1</a><td>// Copyright 2013 Software Freedom Conservancy. All Rights Reserved.<tr><td><a name="l2" href="#l2">2</a><td>//<tr><td><a name="l3" href="#l3">3</a><td>// Licensed under the Apache License, Version 2.0 (the "License");<tr><td><a name="l4" href="#l4">4</a><td>// you may not use this file except in compliance with the License.<tr><td><a name="l5" href="#l5">5</a><td>// You may obtain a copy of the License at<tr><td><a name="l6" href="#l6">6</a><td>//<tr><td><a name="l7" href="#l7">7</a><td>// http://www.apache.org/licenses/LICENSE-2.0<tr><td><a name="l8" href="#l8">8</a><td>//<tr><td><a name="l9" href="#l9">9</a><td>// Unless required by applicable law or agreed to in writing, software<tr><td><a name="l10" href="#l10">10</a><td>// distributed under the License is distributed on an "AS IS" BASIS,<tr><td><a name="l11" href="#l11">11</a><td>// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<tr><td><a name="l12" href="#l12">12</a><td>// See the License for the specific language governing permissions and<tr><td><a name="l13" href="#l13">13</a><td>// limitations under the License.<tr><td><a name="l14" href="#l14">14</a><td><tr><td><a name="l15" href="#l15">15</a><td>/**<tr><td><a name="l16" href="#l16">16</a><td> * @fileoverview Various utilities for working with<tr><td><a name="l17" href="#l17">17</a><td> * {@link webdriver.CommandExecutor} implementations.<tr><td><a name="l18" href="#l18">18</a><td> */<tr><td><a name="l19" href="#l19">19</a><td><tr><td><a name="l20" href="#l20">20</a><td>var HttpClient = require('./http').HttpClient,<tr><td><a name="l21" href="#l21">21</a><td> HttpExecutor = require('./http').Executor,<tr><td><a name="l22" href="#l22">22</a><td> promise = require('./_base').require('webdriver.promise');<tr><td><a name="l23" href="#l23">23</a><td><tr><td><a name="l24" href="#l24">24</a><td><tr><td><a name="l25" href="#l25">25</a><td><tr><td><a name="l26" href="#l26">26</a><td>/**<tr><td><a name="l27" href="#l27">27</a><td> * Wraps a promised {@link webdriver.CommandExecutor}, ensuring no commands<tr><td><a name="l28" href="#l28">28</a><td> * are executed until the wrapped executor has been fully built.<tr><td><a name="l29" href="#l29">29</a><td> * @param {!webdriver.promise.Promise.<!webdriver.CommandExecutor>} delegate The<tr><td><a name="l30" href="#l30">30</a><td> * promised delegate.<tr><td><a name="l31" href="#l31">31</a><td> * @constructor<tr><td><a name="l32" href="#l32">32</a><td> * @implements {webdriver.CommandExecutor}<tr><td><a name="l33" href="#l33">33</a><td> */<tr><td><a name="l34" href="#l34">34</a><td>var DeferredExecutor = function(delegate) {<tr><td><a name="l35" href="#l35">35</a><td><tr><td><a name="l36" href="#l36">36</a><td> /** @override */<tr><td><a name="l37" href="#l37">37</a><td> this.execute = function(command, callback) {<tr><td><a name="l38" href="#l38">38</a><td> delegate.then(function(executor) {<tr><td><a name="l39" href="#l39">39</a><td> executor.execute(command, callback);<tr><td><a name="l40" href="#l40">40</a><td> }, callback);<tr><td><a name="l41" href="#l41">41</a><td> };<tr><td><a name="l42" href="#l42">42</a><td>};<tr><td><a name="l43" href="#l43">43</a><td><tr><td><a name="l44" href="#l44">44</a><td><tr><td><a name="l45" href="#l45">45</a><td>// PUBLIC API<tr><td><a name="l46" href="#l46">46</a><td><tr><td><a name="l47" href="#l47">47</a><td><tr><td><a name="l48" href="#l48">48</a><td>/**<tr><td><a name="l49" href="#l49">49</a><td> * Creates a command executor that uses WebDriver's JSON wire protocol.<tr><td><a name="l50" href="#l50">50</a><td> * @param {(string|!webdriver.promise.Promise.<string>)} url The server's URL,<tr><td><a name="l51" href="#l51">51</a><td> * or a promise that will resolve to that URL.<tr><td><a name="l52" href="#l52">52</a><td> * @returns {!webdriver.CommandExecutor} The new command executor.<tr><td><a name="l53" href="#l53">53</a><td> */<tr><td><a name="l54" href="#l54">54</a><td>exports.createExecutor = function(url) {<tr><td><a name="l55" href="#l55">55</a><td> return new DeferredExecutor(promise.when(url, function(url) {<tr><td><a name="l56" href="#l56">56</a><td> var client = new HttpClient(url);<tr><td><a name="l57" href="#l57">57</a><td> return new HttpExecutor(client);<tr><td><a name="l58" href="#l58">58</a><td> }));<tr><td><a name="l59" href="#l59">59</a><td>};</table></pre></main><nav id="topnav"><div><div id="menubutton"><label for="sidenav-toggle">Menu</label></div><form id="searchbox"><div><input type="search" placeholder="Search" tabindex="1"></div></form></div></nav><nav id="sidenav"><input type="checkbox" id="sidenav-types-ctrl" /><input type="checkbox" id="sidenav-files-ctrl" /><input type="checkbox" id="sidenav-modules-ctrl" /><a id="sidenav-overview"><div><h4>Overview</h4></div></a><div id="sidenav-types"><label for="sidenav-types-ctrl"><h4>Types</h4></label><i>No data</i></div><div id="sidenav-modules"><label for="sidenav-modules-ctrl"><h4>Modules</h4></label><i>No data</i></div><div id="sidenav-files"><label 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