zdpjs_webrtc

<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>EasyRTC Documentation</title> <script src="scripts/prettify/prettify.js"> </script> <script src="scripts/prettify/lang-css.js"> </script>  <link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css"> <link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css"> <link href="../assets/easyrtc-docs-jsdoc-styles-1.css" media="all" rel="stylesheet" /> </head> <body> <header class="template"> <div class="wrapper-content"> <a href="../index.html"><img src="../assets/easyrtc-logo.png" alt="EasyRTC Documentation"></a> <h1 title="EasyRTC Documentation">Documentation</h1> </div> </header> <div class="wrapper-docs"> <nav> <h2><a href="../index.html">Docs Home</a></h2> <h3>EasyRTC Guides</h3> <ul> <li><a href="../easyrtc_faq.html">FAQ</a></li> <li><a href="../easyrtc_gettingStarted.html">Getting Started</a></li> <li><a href="../easyrtc_server_install.html">EasyRTC Server: Installation</a></li> <li><a href="../easyrtc_client_tutorial.html">EasyRTC Framework Tutorial</a></li> <li><a href="../easyrtc_rooms.html">Rooms</a></li> <li><a href="../easyrtc_server_configuration.html">EasyRTC Server: Configuration</a></li> <li><a href="../easyrtc_server_events.html">EasyRTC Server: Events</a></li> <li><a href="../easyrtc_server_ice.html">EasyRTC Server: ICE Configuration</a></li> <li><a href="../easyrtc_with_other_servers.html">Using Alongside Other Servers</a></li> <li><a href="../easyrtc_server_ssl.html">EasyRTC Server: Using SSL</a></li> <li><a href="../easyrtc_webrtc_problems.html">WebRTC Problems and Possible Fixes</a></li> <li><a href="../easyrtc_upcoming_features.html">Upcoming Features</a></li> <li><a href="../easyrtc_changelog.html">Change Log</a></li> </ul> <h3>EasyRTC Client Classes</h3> <ul> <li><a href="../client-api/Easyrtc.html">Easyrtc</a></li> <li><a href="../client-api/Easyrtc_App.html">Easyrtc_App</a></li> <li><a href="../client-api/Easyrtc_ft.html">Easyrtc_ft</a></li> <li><a href="../client-api/Easyrtc_IframeCapture.html">Easyrtc_IframeCapture</a></li> <li><a href="../client-api/Easyrtc_No_IframeCapture.html">Easyrtc_No_IframeCapture</a></li> <li><a href="../client-api/Easyrtc_Rates.html">Easyrtc_Rates</a></li> <li><a href="../client-api/Easyrtc_Recorder.html">Easyrtc_Recorder</a></li> </ul> <h3>EasyRTC Server Modules</h3> <ul> <li><a href="../server-api/module-easyrtc_default_event_listeners.html">easyrtc_default_event_listeners</a></li> <li><a href="../server-api/module-easyrtc_default_options.html">easyrtc_default_options</a></li> <li><a href="../server-api/module-easyrtc_private_obj.html">easyrtc_private_obj</a></li> <li><a href="../server-api/module-easyrtc_public_obj.html">easyrtc_public_obj</a></li> <li><a href="../server-api/module-easyrtc_util.html">easyrtc_util</a></li> <li><a href="../server-api/module-general_util.html">general_util</a></li> </ul> <h3>EasyRTC Server Classes</h3> <ul> <li><a href="../server-api/module-easyrtc_default_event_listeners-eventListener.html">eventListener</a></li> <li><a href="../server-api/module-easyrtc_public_obj-pub.html">pub</a></li> <li><a href="../server-api/module-easyrtc_public_obj-pub.events.html">events</a></li> <li><a href="../server-api/module-easyrtc_public_obj-pub.util.html">util</a></li> <li><a href="../server-api/module-easyrtc_util-eu.html">eu</a></li> <li><a href="../server-api/module-general_util-g.html">g</a></li> <li><a href="../server-api/pub.appObj.html">appObj</a></li> <li><a href="../server-api/pub.appObj.connectionObj.html">connectionObj</a></li> <li><a href="../server-api/pub.appObj.connectionObj.connectionRoomObj.html">connectionRoomObj</a></li> <li><a href="../server-api/pub.appObj.roomObj.html">roomObj</a></li> <li><a href="../server-api/pub.appObj.sessionObj.html">sessionObj</a></li> </ul> </nav> <div class="easyrtc-docs-content"> <div id="main"> <h1 class="page-title">Source: desktop_capture_no_iframe_version.js</h1> <section> <article> <pre class="prettyprint source linenums easyrtc"><code><a name="line1"></a><div class="linenumber">1</div><div style="width:0em;display:inline-block"></div>// <a name="line2"></a><div class="linenumber">2</div><div style="width:0em;display:inline-block"></div>// This code was taken from: https://github.com/muaz-khan/WebRTC-Experiment/tree/master/Pluginfree-Screen-Sharing <a name="line3"></a><div class="linenumber">3</div><div style="width:0em;display:inline-block"></div>// and modified to fit with EasyRTC. <a name="line4"></a><div class="linenumber">4</div><div style="width:0em;display:inline-block"></div>// <a name="line5"></a><div class="linenumber">5</div> <a name="line6"></a><div class="linenumber">6</div><div style="width:0em;display:inline-block"></div>// todo: need to check exact chrome browser because opera/node-webkit also uses chromium framework <a name="line7"></a><div class="linenumber">7</div><div style="width:0em;display:inline-block"></div>var isChrome = !!navigator.webkitGetUserMedia; <a name="line8"></a><div class="linenumber">8</div> <a name="line9"></a><div class="linenumber">9</div><div style="width:0em;display:inline-block"></div>// DetectRTC.js - github.com/muaz-khan/WebRTC-Experiment/tree/master/DetectRTC <a name="line10"></a><div class="linenumber">10</div><div style="width:0em;display:inline-block"></div>// Below code is taken from RTCMultiConnection-v1.8.js (http://www.rtcmulticonnection.org/changes-log/#v1.8) <a name="line11"></a><div class="linenumber">11</div><div style="width:0em;display:inline-block"></div>// and modified. <a name="line12"></a><div class="linenumber">12</div><div style="width:0em;display:inline-block"></div>var DetectRTC = {}; <a name="line13"></a><div class="linenumber">13</div> <a name="line14"></a><div class="linenumber">14</div> <a name="line15"></a><div class="linenumber">15</div><div style="width:0em;display:inline-block"></div>(function() { <a name="line16"></a><div class="linenumber">16</div> <a name="line17"></a><div class="linenumber">17</div><div style="width:0em;display:inline-block"></div>/** <a name="line18"></a><div class="linenumber">18</div><div style="width:0em;display:inline-block"></div>* Provides a method for window/screen capture using an iframe. <a name="line19"></a><div class="linenumber">19</div><div style="width:0em;display:inline-block"></div>* Please read the comments in the source code about setting the  <a name="line20"></a><div class="linenumber">20</div><div style="width:0em;display:inline-block"></div>* chrome extension that this requires to be installed in each browser. <a name="line21"></a><div class="linenumber">21</div><div style="width:0em;display:inline-block"></div>* @class Easyrtc_No_IframeCapture <a name="line22"></a><div class="linenumber">22</div><div style="width:0em;display:inline-block"></div>*/ <a name="line23"></a><div class="linenumber">23</div> <a name="line24"></a><div class="linenumber">24</div><div style="width:2em;display:inline-block"></div>var screenCallback; <a name="line25"></a><div class="linenumber">25</div> <a name="line26"></a><div class="linenumber">26</div><div style="width:2em;display:inline-block"></div>DetectRTC.screen = { <a name="line27"></a><div class="linenumber">27</div><div style="width:4em;display:inline-block"></div>supported: false, <a name="line28"></a><div class="linenumber">28</div><div style="width:4em;display:inline-block"></div>getSourceId: function(callback) { <a name="line29"></a><div class="linenumber">29</div><div style="width:6em;display:inline-block"></div>if (!callback) <a name="line30"></a><div class="linenumber">30</div><div style="width:8em;display:inline-block"></div>throw '"callback" parameter is mandatory.'; <a name="line31"></a><div class="linenumber">31</div><div style="width:6em;display:inline-block"></div>screenCallback = callback; <a name="line32"></a><div class="linenumber">32</div><div style="width:6em;display:inline-block"></div>window.postMessage('desktopcapture-get-sourceId', '*'); <a name="line33"></a><div class="linenumber">33</div><div style="width:4em;display:inline-block"></div>}, <a name="line34"></a><div class="linenumber">34</div><div style="width:4em;display:inline-block"></div>isChromeExtensionAvailable: function(callback) { <a name="line35"></a><div class="linenumber">35</div><div style="width:6em;display:inline-block"></div>if (!callback) { <a name="line36"></a><div class="linenumber">36</div><div style="width:8em;display:inline-block"></div>return; <a name="line37"></a><div class="linenumber">37</div><div style="width:6em;display:inline-block"></div>} <a name="line38"></a><div class="linenumber">38</div> <a name="line39"></a><div class="linenumber">39</div><div style="width:6em;display:inline-block"></div>if (DetectRTC.screen.supported) { <a name="line40"></a><div class="linenumber">40</div><div style="width:8em;display:inline-block"></div>callback(true); <a name="line41"></a><div class="linenumber">41</div><div style="width:6em;display:inline-block"></div>} <a name="line42"></a><div class="linenumber">42</div> <a name="line43"></a><div class="linenumber">43</div><div style="width:6em;display:inline-block"></div>// ask extension if it is available <a name="line44"></a><div class="linenumber">44</div><div style="width:6em;display:inline-block"></div>window.postMessage('desktopcapture-are-you-there', '*'); <a name="line45"></a><div class="linenumber">45</div> <a name="line46"></a><div class="linenumber">46</div><div style="width:6em;display:inline-block"></div>setTimeout(function() { <a name="line47"></a><div class="linenumber">47</div><div style="width:8em;display:inline-block"></div>callback(DetectRTC.screen.supported); <a name="line48"></a><div class="linenumber">48</div><div style="width:6em;display:inline-block"></div>}, 2000); <a name="line49"></a><div class="linenumber">49</div><div style="width:4em;display:inline-block"></div>}, <a name="line50"></a><div class="linenumber">50</div><div style="width:4em;display:inline-block"></div>onMessageCallback: function(data) { <a name="line51"></a><div class="linenumber">51</div><div style="width:6em;display:inline-block"></div>// "cancel" button is clicked <a name="line52"></a><div class="linenumber">52</div><div style="width:6em;display:inline-block"></div>if (data == 'PermissionDeniedError') { <a name="line53"></a><div class="linenumber">53</div><div style="width:8em;display:inline-block"></div>DetectRTC.screen.chromeMediaSource = 'PermissionDeniedError'; <a name="line54"></a><div class="linenumber">54</div><div style="width:8em;display:inline-block"></div>if (screenCallback) { <a name="line55"></a><div class="linenumber">55</div><div style="width:9em;display:inline-block"></div>return screenCallback('PermissionDeniedError'); <a name="line56"></a><div class="linenumber">56</div><div style="width:8em;display:inline-block"></div>} <a name="line57"></a><div class="linenumber">57</div><div style="width:8em;display:inline-block"></div>else { <a name="line58"></a><div class="linenumber">58</div><div style="width:10em;display:inline-block"></div>throw new Error('PermissionDeniedError'); <a name="line59"></a><div class="linenumber">59</div><div style="width:8em;display:inline-block"></div>} <a name="line60"></a><div class="linenumber">60</div><div style="width:6em;display:inline-block"></div>} <a name="line61"></a><div class="linenumber">61</div> <a name="line62"></a><div class="linenumber">62</div><div style="width:6em;display:inline-block"></div>// extension notified his presence <a name="line63"></a><div class="linenumber">63</div><div style="width:6em;display:inline-block"></div>if (data == 'desktopcapture-loaded') { <a name="line64"></a><div class="linenumber">64</div><div style="width:8em;display:inline-block"></div>DetectRTC.screen.supported = true; <a name="line65"></a><div class="linenumber">65</div><div style="width:6em;display:inline-block"></div>} <a name="line66"></a><div class="linenumber">66</div> <a name="line67"></a><div class="linenumber">67</div><div style="width:6em;display:inline-block"></div>// extension shared temp sourceId <a name="line68"></a><div class="linenumber">68</div><div style="width:6em;display:inline-block"></div>if (data.sourceId) { <a name="line69"></a><div class="linenumber">69</div><div style="width:8em;display:inline-block"></div>DetectRTC.screen.sourceId = data.sourceId; <a name="line70"></a><div class="linenumber">70</div><div style="width:8em;display:inline-block"></div>if (screenCallback) { <a name="line71"></a><div class="linenumber">71</div><div style="width:10em;display:inline-block"></div>screenCallback(null); <a name="line72"></a><div class="linenumber">72</div><div style="width:8em;display:inline-block"></div>} <a name="line73"></a><div class="linenumber">73</div><div style="width:6em;display:inline-block"></div>} <a name="line74"></a><div class="linenumber">74</div><div style="width:4em;display:inline-block"></div>} <a name="line75"></a><div class="linenumber">75</div><div style="width:2em;display:inline-block"></div>}; <a name="line76"></a><div class="linenumber">76</div> <a name="line77"></a><div class="linenumber">77</div><div style="width:2em;display:inline-block"></div>// check if desktop-capture extension installed. <a name="line78"></a><div class="linenumber">78</div><div style="width:2em;display:inline-block"></div>if (window.postMessage && isChrome) { <a name="line79"></a><div class="linenumber">79</div><div style="width:4em;display:inline-block"></div>DetectRTC.screen.isChromeExtensionAvailable(function(){}); <a name="line80"></a><div class="linenumber">80</div><div style="width:2em;display:inline-block"></div>} <a name="line81"></a><div class="linenumber">81</div><div style="width:0em;display:inline-block"></div>})(); <a name="line82"></a><div class="linenumber">82</div> <a name="line83"></a><div class="linenumber">83</div><div style="width:0em;display:inline-block"></div>window.addEventListener('message', function(event) { <a name="line84"></a><div class="linenumber">84</div><div style="width:2em;display:inline-block"></div>if (event.origin != window.location.origin) { <a name="line85"></a><div class="linenumber">85</div><div style="width:4em;display:inline-block"></div>return; <a name="line86"></a><div class="linenumber">86</div><div style="width:2em;display:inline-block"></div>} <a name="line87"></a><div class="linenumber">87</div> <a name="line88"></a><div class="linenumber">88</div><div style="width:2em;display:inline-block"></div>DetectRTC.screen.onMessageCallback(event.data); <a name="line89"></a><div class="linenumber">89</div><div style="width:0em;display:inline-block"></div>}); <a name="line90"></a><div class="linenumber">90</div> <a name="line91"></a><div class="linenumber">91</div><div style="width:0em;display:inline-block"></div>/** <a name="line92"></a><div class="linenumber">92</div><div style="width:1em;display:inline-block"></div>* Check if desktop capture installed <a name="line93"></a><div class="linenumber">93</div><div style="width:1em;display:inline-block"></div>* @function <a name="line94"></a><div class="linenumber">94</div><div style="width:1em;display:inline-block"></div>* @memberOf Easyrtc_No_IframeCapture <a name="line95"></a><div class="linenumber">95</div><div style="width:1em;display:inline-block"></div>* @return boolean <a name="line96"></a><div class="linenumber">96</div><div style="width:1em;display:inline-block"></div>*/  <a name="line97"></a><div class="linenumber">97</div><div style="width:0em;display:inline-block"></div>easyrtc.isDesktopCaptureInstalled = function() { <a name="line98"></a><div class="linenumber">98</div><div style="width:2em;display:inline-block"></div>return DetectRTC.screen.supported; <a name="line99"></a><div class="linenumber">99</div><div style="width:0em;display:inline-block"></div>} <a name="line100"></a><div class="linenumber">100</div> <a name="line101"></a><div class="linenumber">101</div><div style="width:1em;display:inline-block"></div>/** Create a local media stream for desktop capture. <a name="line102"></a><div class="linenumber">102</div><div style="width:2em;display:inline-block"></div>* This will fail if a desktop capture extension is not installed. <a name="line103"></a><div class="linenumber">103</div><div style="width:2em;display:inline-block"></div>* not granting permission. <a name="line104"></a><div class="linenumber">104</div><div style="width:2em;display:inline-block"></div>* @function <a name="line105"></a><div class="linenumber">105</div><div style="width:2em;display:inline-block"></div>* @memberOf Easyrtc_No_IframeCapture <a name="line106"></a><div class="linenumber">106</div><div style="width:2em;display:inline-block"></div>* @param {function(HTMLMediaStream)} successCallback - will be called with localmedia stream on success. <a name="line107"></a><div class="linenumber">107</div><div style="width:2em;display:inline-block"></div>* @param {function(String,String)} errorCallback - is called with an error code and error description. <a name="line108"></a><div class="linenumber">108</div><div style="width:2em;display:inline-block"></div>* @param {String} streamName - an optional name for the media source so you can use multiple cameras and screen share simultaneously. <a name="line109"></a><div class="linenumber">109</div><div style="width:2em;display:inline-block"></div>* @param {String} iframeUrl - an optional url for the iframe. The default is to use Muaz Khan's. <a name="line110"></a><div class="linenumber">110</div><div style="width:2em;display:inline-block"></div>* @example <a name="line111"></a><div class="linenumber">111</div><div style="width:2em;display:inline-block"></div>*       easyrtc.initDesktopStream( <a name="line112"></a><div class="linenumber">112</div><div style="width:2em;display:inline-block"></div>*          function(mediastream){ <a name="line113"></a><div class="linenumber">113</div><div style="width:2em;display:inline-block"></div>*              easyrtc.setVideoObjectSrc( document.getElementById("mirrorVideo"), mediastream); <a name="line114"></a><div class="linenumber">114</div><div style="width:2em;display:inline-block"></div>*          }, <a name="line115"></a><div class="linenumber">115</div><div style="width:2em;display:inline-block"></div>*          function(errorCode, errorText){ <a name="line116"></a><div class="linenumber">116</div><div style="width:2em;display:inline-block"></div>*               easyrtc.showError(errorCode, errorText); <a name="line117"></a><div class="linenumber">117</div><div style="width:2em;display:inline-block"></div>*          }); <a name="line118"></a><div class="linenumber">118</div><div style="width:2em;display:inline-block"></div>* <a name="line119"></a><div class="linenumber">119</div><div style="width:2em;display:inline-block"></div>*/ <a name="line120"></a><div class="linenumber">120</div><div style="width:0em;display:inline-block"></div>easyrtc.initDesktopStream = function(successCallback, failureCallback, streamName) { <a name="line121"></a><div class="linenumber">121</div><div style="width:2em;display:inline-block"></div>if (!easyrtc.isDesktopCaptureInstalled()) { <a name="line122"></a><div class="linenumber">122</div><div style="width:4em;display:inline-block"></div>failureCallback(easyrtc.errCodes.DEVELOPER_ERR, "Desktop capture plugin not installed"). <a name="line123"></a><div class="linenumber">123</div><div style="width:8em;display:inline-block"></div>return; <a name="line124"></a><div class="linenumber">124</div><div style="width:2em;display:inline-block"></div>} <a name="line125"></a><div class="linenumber">125</div> <a name="line126"></a><div class="linenumber">126</div><div style="width:2em;display:inline-block"></div>DetectRTC.screen.getSourceId(function(error) { <a name="line127"></a><div class="linenumber">127</div><div style="width:4em;display:inline-block"></div>if( error) { <a name="line128"></a><div class="linenumber">128</div><div style="width:6em;display:inline-block"></div>failureCallback(easyrtc.errCodes.MEDIA_ERR, error); <a name="line129"></a><div class="linenumber">129</div><div style="width:4em;display:inline-block"></div>} <a name="line130"></a><div class="linenumber">130</div><div style="width:4em;display:inline-block"></div>else if (DetectRTC.screen.sourceId) { <a name="line131"></a><div class="linenumber">131</div><div style="width:6em;display:inline-block"></div>easyrtc._presetMediaConstraints = { <a name="line132"></a><div class="linenumber">132</div><div style="width:8em;display:inline-block"></div>video: { <a name="line133"></a><div class="linenumber">133</div><div style="width:10em;display:inline-block"></div>mandatory: { <a name="line134"></a><div class="linenumber">134</div><div style="width:12em;display:inline-block"></div>chromeMediaSource: 'desktop', <a name="line135"></a><div class="linenumber">135</div><div style="width:12em;display:inline-block"></div>chromeMediaSourceId: DetectRTC.screen.sourceId, <a name="line136"></a><div class="linenumber">136</div><div style="width:12em;display:inline-block"></div>maxWidth: 1920, <a name="line137"></a><div class="linenumber">137</div><div style="width:12em;display:inline-block"></div>maxHeight: 1080, <a name="line138"></a><div class="linenumber">138</div><div style="width:12em;display:inline-block"></div>minAspectRatio: 1.77 <a name="line139"></a><div class="linenumber">139</div><div style="width:10em;display:inline-block"></div>} <a name="line140"></a><div class="linenumber">140</div><div style="width:8em;display:inline-block"></div>}, <a name="line141"></a><div class="linenumber">141</div><div style="width:8em;display:inline-block"></div>audio: false <a name="line142"></a><div class="linenumber">142</div><div style="width:6em;display:inline-block"></div>} <a name="line143"></a><div class="linenumber">143</div><div style="width:6em;display:inline-block"></div>easyrtc.initMediaSource(successCallback, failureCallback, streamName); <a name="line144"></a><div class="linenumber">144</div><div style="width:4em;display:inline-block"></div>} <a name="line145"></a><div class="linenumber">145</div><div style="width:4em;display:inline-block"></div>else { <a name="line146"></a><div class="linenumber">146</div><div style="width:6em;display:inline-block"></div>failureCallback(easyrtc.errCodes.MEDIA_CANCELLED, "Desktop capture plugin not installed"); <a name="line147"></a><div class="linenumber">147</div><div style="width:4em;display:inline-block"></div>} <a name="line148"></a><div class="linenumber">148</div><div style="width:2em;display:inline-block"></div>}); <a name="line149"></a><div class="linenumber">149</div><div style="width:0em;display:inline-block"></div>} <a name="line150"></a><div class="linenumber">150</div> <a name="line151"></a><div class="linenumber">151</div><div style="width:0em;display:inline-block"></div>/** <a name="line152"></a><div class="linenumber">152</div><div style="width:0em;display:inline-block"></div>* This method builds a function that can be attached to a button to install an extension. <a name="line153"></a><div class="linenumber">153</div><div style="width:0em;display:inline-block"></div>* The install will only work on a {@link https://support.google.com/webmasters/answer/34592?hl=en|Google Verified Website} <a name="line154"></a><div class="linenumber">154</div><div style="width:0em;display:inline-block"></div>* with a `link` tag pointing to the extension, which is required by chrome for <a name="line155"></a><div class="linenumber">155</div><div style="width:0em;display:inline-block"></div>* {@link https://developer.chrome.com/webstore/inline_installation|Inline Installations}. <a name="line156"></a><div class="linenumber">156</div><div style="width:0em;display:inline-block"></div>* <a name="line157"></a><div class="linenumber">157</div><div style="width:0em;display:inline-block"></div>* @function <a name="line158"></a><div class="linenumber">158</div><div style="width:0em;display:inline-block"></div>* @memberOf Easyrtc_No_IframeCapture <a name="line159"></a><div class="linenumber">159</div><div style="width:0em;display:inline-block"></div>* @example <a name="line160"></a><div class="linenumber">160</div><div style="width:0em;display:inline-block"></div>* <a name="line161"></a><div class="linenumber">161</div><div style="width:0em;display:inline-block"></div>* <link rel="chrome-webstore-item" href="https://chrome.google.com/webstore/detail/bemabaogbdfpbkkganibcmhbgjogabfj" id="custom-app-id" /> <a name="line162"></a><div class="linenumber">162</div><div style="width:0em;display:inline-block"></div>* <a name="line163"></a><div class="linenumber">163</div><div style="width:0em;display:inline-block"></div>* easyrtc.chromeInstall("custom-app_id", function() { <a name="line164"></a><div class="linenumber">164</div><div style="width:0em;display:inline-block"></div>*         // success <a name="line165"></a><div class="linenumber">165</div><div style="width:0em;display:inline-block"></div>*     }, <a name="line166"></a><div class="linenumber">166</div><div style="width:0em;display:inline-block"></div>*     function(errorCode, errorText) { <a name="line167"></a><div class="linenumber">167</div><div style="width:0em;display:inline-block"></div>*         // failure <a name="line168"></a><div class="linenumber">168</div><div style="width:0em;display:inline-block"></div>*     }); <a name="line169"></a><div class="linenumber">169</div><div style="width:0em;display:inline-block"></div>* <a name="line170"></a><div class="linenumber">170</div><div style="width:0em;display:inline-block"></div>* @param  {String} extensionId The id of the `link` tag pointing to your extension. <a name="line171"></a><div class="linenumber">171</div><div style="width:0em;display:inline-block"></div>* @param  {Function} successCallback Function to call on success. <a name="line172"></a><div class="linenumber">172</div><div style="width:0em;display:inline-block"></div>* @param  {Function} failureCallback Function to call on failure.  Will pass argument `errorCode` and `errorMessage`. <a name="line173"></a><div class="linenumber">173</div><div style="width:0em;display:inline-block"></div>*/ <a name="line174"></a><div class="linenumber">174</div><div style="width:0em;display:inline-block"></div>easyrtc.chromeInstaller = function(extensionId, successCallback, failureCallback) { <a name="line175"></a><div class="linenumber">175</div><div style="width:2em;display:inline-block"></div>return function() { <a name="line176"></a><div class="linenumber">176</div><div style="width:4em;display:inline-block"></div>var el, url; <a name="line177"></a><div class="linenumber">177</div><div style="width:4em;display:inline-block"></div>if( !navigator.webkitGetUserMedia || <a name="line178"></a><div class="linenumber">178</div><div style="width:6em;display:inline-block"></div>!window.chrome || <a name="line179"></a><div class="linenumber">179</div><div style="width:6em;display:inline-block"></div>!chrome.webstore || <a name="line180"></a><div class="linenumber">180</div><div style="width:6em;display:inline-block"></div>!chrome.webstore.install ) { <a name="line181"></a><div class="linenumber">181</div><div style="width:6em;display:inline-block"></div>failureCallback(easyrtc.errCodes.DEVELOPER_ERR, "Can't install plugin on non-chrome browsers"); <a name="line182"></a><div class="linenumber">182</div><div style="width:4em;display:inline-block"></div>} <a name="line183"></a><div class="linenumber">183</div><div style="width:4em;display:inline-block"></div>else { <a name="line184"></a><div class="linenumber">184</div><div style="width:6em;display:inline-block"></div>try { <a name="line185"></a><div class="linenumber">185</div><div style="width:8em;display:inline-block"></div>var el = document.querySelector('head link#' + extensionId); <a name="line186"></a><div class="linenumber">186</div> <a name="line187"></a><div class="linenumber">187</div><div style="width:8em;display:inline-block"></div>if ( ! el) throw new Error("Can't find a `link` element in `head` with id `"+extensionId+"`"); <a name="line188"></a><div class="linenumber">188</div> <a name="line189"></a><div class="linenumber">189</div><div style="width:8em;display:inline-block"></div>// get the chrome extension url from the link's href attribute <a name="line190"></a><div class="linenumber">190</div><div style="width:8em;display:inline-block"></div>var url = el.attributes.href.value; <a name="line191"></a><div class="linenumber">191</div> <a name="line192"></a><div class="linenumber">192</div><div style="width:8em;display:inline-block"></div>chrome.webstore.install(url, successCallback, function(error) { <a name="line193"></a><div class="linenumber">193</div><div style="width:10em;display:inline-block"></div>failureCallback(easyrtc.errCodes.DEVELOPER_ERR, error); <a name="line194"></a><div class="linenumber">194</div><div style="width:8em;display:inline-block"></div>}); <a name="line195"></a><div class="linenumber">195</div> <a name="line196"></a><div class="linenumber">196</div><div style="width:6em;display:inline-block"></div>} <a name="line197"></a><div class="linenumber">197</div><div style="width:6em;display:inline-block"></div>catch (error) { <a name="line198"></a><div class="linenumber">198</div><div style="width:8em;display:inline-block"></div>failureCallback(easyrtc.errCodes.DEVELOPER_ERR, error.message); <a name="line199"></a><div class="linenumber">199</div><div style="width:6em;display:inline-block"></div>} <a name="line200"></a><div class="linenumber">200</div><div style="width:4em;display:inline-block"></div>} <a name="line201"></a><div class="linenumber">201</div><div style="width:2em;display:inline-block"></div>} <a name="line202"></a><div class="linenumber">202</div><div style="width:0em;display:inline-block"></div>} </code></pre> </article> </section> </div> </div> </div> <footer class="template"> <div class="wrapper-content"> <p>Copyright ©2016 EasyRTC</p> </div> </footer>   </body> </html>