dreemgl
Version:
DreemGL is an open-source multi-screen prototyping framework for mediated environments, with a visual editor and shader styling for webGL and DALi runtimes written in JavaScript. As a toolkit for gpu-accelerated multiscreen development, DreemGL includes
581 lines (524 loc) • 30.4 kB
HTML
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>CodeRay output</title>
<style type="text/css">
.CodeRay .line-numbers a {
text-decoration: inherit;
color: inherit;
}
body {
background-color: white;
padding: 0;
margin: 0;
}
.CodeRay {
background-color: hsl(0,0%,95%);
border: 1px solid silver;
color: black;
}
.CodeRay pre {
margin: 0px;
}
span.CodeRay { white-space: pre; border: 0px; padding: 2px; }
table.CodeRay { border-collapse: collapse; width: 100%; padding: 2px; }
table.CodeRay td { padding: 2px 4px; vertical-align: top; }
.CodeRay .line-numbers {
background-color: hsl(180,65%,90%);
color: gray;
text-align: right;
-webkit-user-select: none;
-moz-user-select: none;
user-select: none;
}
.CodeRay .line-numbers a {
background-color: hsl(180,65%,90%) ;
color: gray ;
text-decoration: none ;
}
.CodeRay .line-numbers pre {
word-break: normal;
}
.CodeRay .line-numbers a:target { color: blue ; }
.CodeRay .line-numbers .highlighted { color: red ; }
.CodeRay .line-numbers .highlighted a { color: red ; }
.CodeRay span.line-numbers { padding: 0px 4px; }
.CodeRay .line { display: block; float: left; width: 100%; }
.CodeRay .code { width: 100%; }
.CodeRay .debug { color: white ; background: blue ; }
.CodeRay .annotation { color:#007 }
.CodeRay .attribute-name { color:#b48 }
.CodeRay .attribute-value { color:#700 }
.CodeRay .binary { color:#549 }
.CodeRay .binary .char { color:#325 }
.CodeRay .binary .delimiter { color:#325 }
.CodeRay .char { color:#D20 }
.CodeRay .char .content { color:#D20 }
.CodeRay .char .delimiter { color:#710 }
.CodeRay .class { color:#B06; font-weight:bold }
.CodeRay .class-variable { color:#369 }
.CodeRay .color { color:#0A0 }
.CodeRay .comment { color:#777 }
.CodeRay .comment .char { color:#444 }
.CodeRay .comment .delimiter { color:#444 }
.CodeRay .constant { color:#036; font-weight:bold }
.CodeRay .decorator { color:#B0B }
.CodeRay .definition { color:#099; font-weight:bold }
.CodeRay .delimiter { color:black }
.CodeRay .directive { color:#088; font-weight:bold }
.CodeRay .docstring { color:#D42; }
.CodeRay .doctype { color:#34b }
.CodeRay .done { text-decoration: line-through; color: gray }
.CodeRay .entity { color:#800; font-weight:bold }
.CodeRay .error { color:#F00; background-color:#FAA }
.CodeRay .escape { color:#666 }
.CodeRay .exception { color:#C00; font-weight:bold }
.CodeRay .float { color:#60E }
.CodeRay .function { color:#06B; font-weight:bold }
.CodeRay .function .delimiter { color:#024; font-weight:bold }
.CodeRay .global-variable { color:#d70 }
.CodeRay .hex { color:#02b }
.CodeRay .id { color:#33D; font-weight:bold }
.CodeRay .include { color:#B44; font-weight:bold }
.CodeRay .inline { background-color: hsla(0,0%,0%,0.07); color: black }
.CodeRay .inline-delimiter { font-weight: bold; color: #666 }
.CodeRay .instance-variable { color:#33B }
.CodeRay .integer { color:#00D }
.CodeRay .imaginary { color:#f00 }
.CodeRay .important { color:#D00 }
.CodeRay .key { color: #606 }
.CodeRay .key .char { color: #60f }
.CodeRay .key .delimiter { color: #404 }
.CodeRay .keyword { color:#080; font-weight:bold }
.CodeRay .label { color:#970; font-weight:bold }
.CodeRay .local-variable { color:#950 }
.CodeRay .map .content { color:#808 }
.CodeRay .map .delimiter { color:#40A}
.CodeRay .map { background-color:hsla(200,100%,50%,0.06); }
.CodeRay .namespace { color:#707; font-weight:bold }
.CodeRay .octal { color:#40E }
.CodeRay .operator { }
.CodeRay .predefined { color:#369; font-weight:bold }
.CodeRay .predefined-constant { color:#069 }
.CodeRay .predefined-type { color:#0a8; font-weight:bold }
.CodeRay .preprocessor { color:#579 }
.CodeRay .pseudo-class { color:#00C; font-weight:bold }
.CodeRay .regexp { background-color:hsla(300,100%,50%,0.06); }
.CodeRay .regexp .content { color:#808 }
.CodeRay .regexp .delimiter { color:#404 }
.CodeRay .regexp .modifier { color:#C2C }
.CodeRay .reserved { color:#080; font-weight:bold }
.CodeRay .shell { background-color:hsla(120,100%,50%,0.06); }
.CodeRay .shell .content { color:#2B2 }
.CodeRay .shell .delimiter { color:#161 }
.CodeRay .string { background-color:hsla(0,100%,50%,0.05); }
.CodeRay .string .char { color: #b0b }
.CodeRay .string .content { color: #D20 }
.CodeRay .string .delimiter { color: #710 }
.CodeRay .string .modifier { color: #E40 }
.CodeRay .symbol { color:#A60 }
.CodeRay .symbol .content { color:#A60 }
.CodeRay .symbol .delimiter { color:#740 }
.CodeRay .tag { color:#070; font-weight:bold }
.CodeRay .type { color:#339; font-weight:bold }
.CodeRay .value { color: #088 }
.CodeRay .variable { color:#037 }
.CodeRay .insert { background: hsla(120,100%,50%,0.12) }
.CodeRay .delete { background: hsla(0,100%,50%,0.12) }
.CodeRay .change { color: #bbf; background: #007 }
.CodeRay .head { color: #f8f; background: #505 }
.CodeRay .head .filename { color: white; }
.CodeRay .delete .eyecatcher { background-color: hsla(0,100%,50%,0.2); border: 1px solid hsla(0,100%,45%,0.5); margin: -1px; border-bottom: none; border-top-left-radius: 5px; border-top-right-radius: 5px; }
.CodeRay .insert .eyecatcher { background-color: hsla(120,100%,50%,0.2); border: 1px solid hsla(120,100%,25%,0.5); margin: -1px; border-top: none; border-bottom-left-radius: 5px; border-bottom-right-radius: 5px; }
.CodeRay .insert .insert { color: #0c0; background:transparent; font-weight:bold }
.CodeRay .delete .delete { color: #c00; background:transparent; font-weight:bold }
.CodeRay .change .change { color: #88f }
.CodeRay .head .head { color: #f4f }
.CodeRay {
border: none;
}
</style>
</head>
<body>
<table class="CodeRay"><tr>
<td class="line-numbers"><pre><a href="#n1" name="n1">1</a>
<a href="#n2" name="n2">2</a>
<a href="#n3" name="n3">3</a>
<a href="#n4" name="n4">4</a>
<a href="#n5" name="n5">5</a>
<a href="#n6" name="n6">6</a>
<a href="#n7" name="n7">7</a>
<a href="#n8" name="n8">8</a>
<a href="#n9" name="n9">9</a>
<strong><a href="#n10" name="n10">10</a></strong>
<a href="#n11" name="n11">11</a>
<a href="#n12" name="n12">12</a>
<a href="#n13" name="n13">13</a>
<a href="#n14" name="n14">14</a>
<a href="#n15" name="n15">15</a>
<a href="#n16" name="n16">16</a>
<a href="#n17" name="n17">17</a>
<a href="#n18" name="n18">18</a>
<a href="#n19" name="n19">19</a>
<strong><a href="#n20" name="n20">20</a></strong>
<a href="#n21" name="n21">21</a>
<a href="#n22" name="n22">22</a>
<a href="#n23" name="n23">23</a>
<a href="#n24" name="n24">24</a>
<a href="#n25" name="n25">25</a>
<a href="#n26" name="n26">26</a>
<a href="#n27" name="n27">27</a>
<a href="#n28" name="n28">28</a>
<a href="#n29" name="n29">29</a>
<strong><a href="#n30" name="n30">30</a></strong>
<a href="#n31" name="n31">31</a>
<a href="#n32" name="n32">32</a>
<a href="#n33" name="n33">33</a>
<a href="#n34" name="n34">34</a>
<a href="#n35" name="n35">35</a>
<a href="#n36" name="n36">36</a>
<a href="#n37" name="n37">37</a>
<a href="#n38" name="n38">38</a>
<a href="#n39" name="n39">39</a>
<strong><a href="#n40" name="n40">40</a></strong>
<a href="#n41" name="n41">41</a>
<a href="#n42" name="n42">42</a>
<a href="#n43" name="n43">43</a>
<a href="#n44" name="n44">44</a>
<a href="#n45" name="n45">45</a>
<a href="#n46" name="n46">46</a>
<a href="#n47" name="n47">47</a>
<a href="#n48" name="n48">48</a>
<a href="#n49" name="n49">49</a>
<strong><a href="#n50" name="n50">50</a></strong>
<a href="#n51" name="n51">51</a>
<a href="#n52" name="n52">52</a>
<a href="#n53" name="n53">53</a>
<a href="#n54" name="n54">54</a>
<a href="#n55" name="n55">55</a>
<a href="#n56" name="n56">56</a>
<a href="#n57" name="n57">57</a>
<a href="#n58" name="n58">58</a>
<a href="#n59" name="n59">59</a>
<strong><a href="#n60" name="n60">60</a></strong>
<a href="#n61" name="n61">61</a>
<a href="#n62" name="n62">62</a>
<a href="#n63" name="n63">63</a>
<a href="#n64" name="n64">64</a>
<a href="#n65" name="n65">65</a>
<a href="#n66" name="n66">66</a>
<a href="#n67" name="n67">67</a>
<a href="#n68" name="n68">68</a>
<a href="#n69" name="n69">69</a>
<strong><a href="#n70" name="n70">70</a></strong>
<a href="#n71" name="n71">71</a>
<a href="#n72" name="n72">72</a>
<a href="#n73" name="n73">73</a>
<a href="#n74" name="n74">74</a>
<a href="#n75" name="n75">75</a>
<a href="#n76" name="n76">76</a>
<a href="#n77" name="n77">77</a>
<a href="#n78" name="n78">78</a>
<a href="#n79" name="n79">79</a>
<strong><a href="#n80" name="n80">80</a></strong>
<a href="#n81" name="n81">81</a>
<a href="#n82" name="n82">82</a>
<a href="#n83" name="n83">83</a>
<a href="#n84" name="n84">84</a>
<a href="#n85" name="n85">85</a>
<a href="#n86" name="n86">86</a>
<a href="#n87" name="n87">87</a>
<a href="#n88" name="n88">88</a>
<a href="#n89" name="n89">89</a>
<strong><a href="#n90" name="n90">90</a></strong>
<a href="#n91" name="n91">91</a>
<a href="#n92" name="n92">92</a>
<a href="#n93" name="n93">93</a>
<a href="#n94" name="n94">94</a>
<a href="#n95" name="n95">95</a>
<a href="#n96" name="n96">96</a>
<a href="#n97" name="n97">97</a>
<a href="#n98" name="n98">98</a>
<a href="#n99" name="n99">99</a>
<strong><a href="#n100" name="n100">100</a></strong>
<a href="#n101" name="n101">101</a>
<a href="#n102" name="n102">102</a>
<a href="#n103" name="n103">103</a>
<a href="#n104" name="n104">104</a>
<a href="#n105" name="n105">105</a>
<a href="#n106" name="n106">106</a>
<a href="#n107" name="n107">107</a>
<a href="#n108" name="n108">108</a>
<a href="#n109" name="n109">109</a>
<strong><a href="#n110" name="n110">110</a></strong>
<a href="#n111" name="n111">111</a>
<a href="#n112" name="n112">112</a>
<a href="#n113" name="n113">113</a>
<a href="#n114" name="n114">114</a>
<a href="#n115" name="n115">115</a>
<a href="#n116" name="n116">116</a>
<a href="#n117" name="n117">117</a>
<a href="#n118" name="n118">118</a>
<a href="#n119" name="n119">119</a>
<strong><a href="#n120" name="n120">120</a></strong>
<a href="#n121" name="n121">121</a>
<a href="#n122" name="n122">122</a>
<a href="#n123" name="n123">123</a>
<a href="#n124" name="n124">124</a>
<a href="#n125" name="n125">125</a>
<a href="#n126" name="n126">126</a>
<a href="#n127" name="n127">127</a>
<a href="#n128" name="n128">128</a>
<a href="#n129" name="n129">129</a>
<strong><a href="#n130" name="n130">130</a></strong>
<a href="#n131" name="n131">131</a>
<a href="#n132" name="n132">132</a>
<a href="#n133" name="n133">133</a>
<a href="#n134" name="n134">134</a>
<a href="#n135" name="n135">135</a>
<a href="#n136" name="n136">136</a>
<a href="#n137" name="n137">137</a>
<a href="#n138" name="n138">138</a>
<a href="#n139" name="n139">139</a>
<strong><a href="#n140" name="n140">140</a></strong>
<a href="#n141" name="n141">141</a>
<a href="#n142" name="n142">142</a>
<a href="#n143" name="n143">143</a>
<a href="#n144" name="n144">144</a>
<a href="#n145" name="n145">145</a>
<a href="#n146" name="n146">146</a>
<a href="#n147" name="n147">147</a>
<a href="#n148" name="n148">148</a>
<a href="#n149" name="n149">149</a>
<strong><a href="#n150" name="n150">150</a></strong>
<a href="#n151" name="n151">151</a>
<a href="#n152" name="n152">152</a>
<a href="#n153" name="n153">153</a>
<a href="#n154" name="n154">154</a>
<a href="#n155" name="n155">155</a>
<a href="#n156" name="n156">156</a>
<a href="#n157" name="n157">157</a>
<a href="#n158" name="n158">158</a>
<a href="#n159" name="n159">159</a>
<strong><a href="#n160" name="n160">160</a></strong>
<a href="#n161" name="n161">161</a>
<a href="#n162" name="n162">162</a>
<a href="#n163" name="n163">163</a>
<a href="#n164" name="n164">164</a>
<a href="#n165" name="n165">165</a>
<a href="#n166" name="n166">166</a>
<a href="#n167" name="n167">167</a>
<a href="#n168" name="n168">168</a>
<a href="#n169" name="n169">169</a>
<strong><a href="#n170" name="n170">170</a></strong>
<a href="#n171" name="n171">171</a>
<a href="#n172" name="n172">172</a>
<a href="#n173" name="n173">173</a>
<a href="#n174" name="n174">174</a>
<a href="#n175" name="n175">175</a>
<a href="#n176" name="n176">176</a>
<a href="#n177" name="n177">177</a>
<a href="#n178" name="n178">178</a>
<a href="#n179" name="n179">179</a>
<strong><a href="#n180" name="n180">180</a></strong>
<a href="#n181" name="n181">181</a>
<a href="#n182" name="n182">182</a>
<a href="#n183" name="n183">183</a>
<a href="#n184" name="n184">184</a>
<a href="#n185" name="n185">185</a>
<a href="#n186" name="n186">186</a>
<a href="#n187" name="n187">187</a>
<a href="#n188" name="n188">188</a>
<a href="#n189" name="n189">189</a>
<strong><a href="#n190" name="n190">190</a></strong>
<a href="#n191" name="n191">191</a>
<a href="#n192" name="n192">192</a>
<a href="#n193" name="n193">193</a>
<a href="#n194" name="n194">194</a>
<a href="#n195" name="n195">195</a>
<a href="#n196" name="n196">196</a>
<a href="#n197" name="n197">197</a>
<a href="#n198" name="n198">198</a>
<a href="#n199" name="n199">199</a>
<strong><a href="#n200" name="n200">200</a></strong>
<a href="#n201" name="n201">201</a>
<a href="#n202" name="n202">202</a>
<a href="#n203" name="n203">203</a>
<a href="#n204" name="n204">204</a>
<a href="#n205" name="n205">205</a>
<a href="#n206" name="n206">206</a>
<a href="#n207" name="n207">207</a>
<a href="#n208" name="n208">208</a>
<a href="#n209" name="n209">209</a>
<strong><a href="#n210" name="n210">210</a></strong>
</pre></td>
<td class="code"><pre><span class="comment">/* DreemGL is a collaboration between Teeming Society & Samsung Electronics, sponsored by Samsung and others.
Copyright 2015-2016 Teeming Society. Licensed under the Apache License, Version 2.0 (the "License"); You may not use this file except in compliance with the License.
You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and limitations under the License.*/</span>
define.<span class="reserved">class</span>(<span class="keyword">function</span>(<span class="predefined">$ui$</span>, view, label, bargraphic){
<span class="comment">// Simple audio player, without controls. While the audio plays, a visual</span>
<span class="comment">// representation of the audio can be displayed in the view</span>
<span class="local-variable">this</span>.attributes = {
<span class="comment">// The URL to an audio file to play</span>
<span class="key">url</span>: Config({<span class="key">type</span>:string, <span class="key">value</span>:<span class="string"><span class="delimiter">'</span><span class="delimiter">'</span></span>})
<span class="comment">// When true (default), start the audio track automatically.</span>
,<span class="key">autoplay</span>: Config({<span class="key">type</span>:bool, <span class="key">value</span>:<span class="predefined-constant">true</span>})
<span class="comment">// Audio volume (0-1)</span>
,<span class="key">volume</span>: Config({<span class="key">type</span>:<span class="reserved">float</span>, <span class="key">value</span>:<span class="float">0.5</span>})
<span class="comment">// Number of fft frames to use. Non-zero power of two from 32 to 2048</span>
,<span class="key">fftsize</span>: Config({<span class="key">type</span>:<span class="reserved">int</span>, <span class="key">value</span>:<span class="integer">512</span>})
<span class="comment">// Amount of smoothing to apply to the fft analysis (0-1)</span>
,<span class="key">fftsmoothing</span>: Config({<span class="key">type</span>:<span class="reserved">float</span>, <span class="key">value</span>:<span class="float">0.8</span>})
<span class="comment">// Event generated when screen updates</span>
,<span class="key">update</span>: Config({<span class="key">type</span>:Event}),
}
<span class="comment">// True if the audio is playing</span>
<span class="local-variable">this</span>.playing = <span class="predefined-constant">false</span>;
<span class="comment">// True if the audio is paused</span>
<span class="local-variable">this</span>.paused = <span class="predefined-constant">false</span>;
<span class="comment">// Length of audio (seconds)</span>
<span class="local-variable">this</span>.duration = -<span class="integer">1</span>;
<span class="comment">// Current location (time) of playback</span>
<span class="local-variable">this</span>.currenttime = -<span class="integer">1</span>;
<span class="comment">// Current data to visualize</span>
<span class="local-variable">this</span>.fftData = <span class="keyword">new</span> Uint8Array((<span class="local-variable">this</span>.fftsize > <span class="integer">0</span>) ? <span class="local-variable">this</span>.fftsize/<span class="integer">2</span> : <span class="integer">2</span>);
<span class="local-variable">this</span>.<span class="function">fftData</span> = <span class="keyword">function</span>() {
<span class="comment">//console.log('***** fftData is updated');</span>
}
<span class="comment">// Play the audio</span>
<span class="local-variable">this</span>.<span class="function">play</span> = <span class="keyword">function</span>() {
<span class="keyword">if</span> (!<span class="local-variable">this</span>.url)
<span class="keyword">return</span>;
<span class="local-variable">this</span>.audioinit();
<span class="comment">// play the music</span>
<span class="local-variable">this</span>.audioElement.setAttribute(<span class="string"><span class="delimiter">'</span><span class="content">src</span><span class="delimiter">'</span></span>, <span class="local-variable">this</span>.url)
<span class="keyword">if</span> (<span class="local-variable">this</span>.audioElement) {
<span class="local-variable">this</span>.audioElement.currentTime = <span class="integer">0</span>;
<span class="local-variable">this</span>.currenttime = <span class="integer">0</span>;
<span class="local-variable">this</span>.audioElement.play();
<span class="local-variable">this</span>.playing = <span class="predefined-constant">true</span>;
<span class="comment">// Updating in the animation loop is better than waiting for</span>
<span class="comment">// the infrequent ontimeupdate events.</span>
<span class="keyword">if</span> (window) {
<span class="local-variable">this</span>.<span class="function">animFrame</span> = <span class="keyword">function</span>(time){
<span class="local-variable">this</span>.updateviz();
<span class="keyword">if</span> (<span class="local-variable">this</span>.playing)
window.requestAnimationFrame(<span class="local-variable">this</span>.animFrame)
}.bind(<span class="local-variable">this</span>);
window.requestAnimationFrame(<span class="local-variable">this</span>.animFrame)
}
<span class="comment">//console.log('play', this.audioElement);</span>
}
}
<span class="comment">// Pause or restart the audio</span>
<span class="local-variable">this</span>.<span class="function">pause</span> = <span class="keyword">function</span>() {
<span class="keyword">if</span> (<span class="local-variable">this</span>.playing) {
<span class="keyword">if</span> (<span class="local-variable">this</span>.paused) {
<span class="local-variable">this</span>.paused = <span class="predefined-constant">false</span>;
<span class="local-variable">this</span>.audioElement.play();
}
<span class="keyword">else</span> {
<span class="local-variable">this</span>.paused = <span class="predefined-constant">true</span>;
<span class="local-variable">this</span>.audioElement.pause();
}
}
}
<span class="comment">// Stop the audio</span>
<span class="local-variable">this</span>.<span class="function">stop</span> = <span class="keyword">function</span>() {
<span class="keyword">var</span> viz = <span class="local-variable">this</span>.screen.find(<span class="string"><span class="delimiter">'</span><span class="content">viz</span><span class="delimiter">'</span></span>);
<span class="keyword">if</span> (viz)
viz.clear();
<span class="keyword">if</span> (<span class="local-variable">this</span>.audioElement) {
<span class="local-variable">this</span>.audioElement.pause();
<span class="local-variable">this</span>.audioElement.currentTime = <span class="integer">0</span>;
<span class="local-variable">this</span>.currenttime = -<span class="integer">1</span>;
}
<span class="local-variable">this</span>.playing = <span class="predefined-constant">false</span>;
<span class="local-variable">this</span>.audiocleanup ();
}
<span class="comment">// Update the current visualization</span>
<span class="local-variable">this</span>.<span class="function">updateviz</span> = <span class="keyword">function</span>() {
<span class="keyword">if</span> (!<span class="local-variable">this</span>.audioElement)
<span class="keyword">return</span>;
<span class="local-variable">this</span>.currenttime = <span class="local-variable">this</span>.audioElement.currentTime;
<span class="local-variable">this</span>.fftNode.getByteFrequencyData(<span class="local-variable">this</span>.fftData);
<span class="keyword">var</span> viz = <span class="local-variable">this</span>.screen.find(<span class="string"><span class="delimiter">'</span><span class="content">viz</span><span class="delimiter">'</span></span>);
<span class="keyword">if</span> (viz) {
<span class="comment">//viz.data = this.fftData;</span>
<span class="keyword">var</span> data = [];
<span class="keyword">for</span> (<span class="keyword">var</span> i=<span class="integer">0</span>; i<<span class="local-variable">this</span>.fftData.length; i++) {
data.push(<span class="local-variable">this</span>.fftData[i]/<span class="float">255.0</span>);
}
viz.data = data;
<span class="comment">//console.log('data set', viz);</span>
}
<span class="local-variable">this</span>.emit(<span class="string"><span class="delimiter">'</span><span class="content">update</span><span class="delimiter">'</span></span>)
}
<span class="comment">// Initialize the AudioContext</span>
<span class="local-variable">this</span>.<span class="function">audioinit</span> = <span class="keyword">function</span>() {
<span class="keyword">if</span> (!<span class="local-variable">this</span>.context) {
window.AudioContext = window.AudioContext || window.webkitAudioContext;
<span class="local-variable">this</span>.context = <span class="keyword">new</span> AudioContext();
}
<span class="keyword">if</span> (!<span class="local-variable">this</span>.audioElement) {
<span class="local-variable">this</span>.audioElement = document.createElement(<span class="string"><span class="delimiter">'</span><span class="content">audio</span><span class="delimiter">'</span></span>)
<span class="local-variable">this</span>.audioElement.setAttribute(<span class="string"><span class="delimiter">'</span><span class="content">volume</span><span class="delimiter">'</span></span>, <span class="local-variable">this</span>.volume);
<span class="local-variable">this</span>.audioElement.<span class="function">ondurationchange</span> = <span class="keyword">function</span>(data) {
<span class="comment">//console.log('ondurationchange', this.audioElement.duration)</span>
<span class="local-variable">this</span>.duration = <span class="local-variable">this</span>.audioElement.duration;
}.bind(<span class="local-variable">this</span>);
<span class="local-variable">this</span>.audioElement.<span class="function">onprogress</span> = <span class="keyword">function</span>(evt) {
<span class="comment">//console.log('onprogress', evt);</span>
}.bind(<span class="local-variable">this</span>);
<span class="comment">// This event does not fire often enough</span>
<span class="comment">//this.audioElement.ontimeupdate = function(evt) {</span>
<span class="comment">// this.updateviz();</span>
<span class="comment">//}.bind(this);</span>
<span class="local-variable">this</span>.audioElement.<span class="function">onended</span> = <span class="keyword">function</span>(evt) {
<span class="local-variable">this</span>.stop();
<span class="comment">//console.log('onended', evt);</span>
}.bind(<span class="local-variable">this</span>);
<span class="comment">// Create fft</span>
<span class="comment">//console.log('create fft', this.fftsize, this.fftsmoothing);</span>
<span class="local-variable">this</span>.fftNode = <span class="local-variable">this</span>.context.createAnalyser();
<span class="keyword">if</span> (<span class="local-variable">this</span>.fftsize) {
<span class="local-variable">this</span>.fftNode.fftSize = <span class="local-variable">this</span>.fftsize;
<span class="local-variable">this</span>.fftNode.smoothingTimeConstant = <span class="local-variable">this</span>.fftsmoothing;
}
<span class="comment">// Connect the audio to the analyzer, and to the output</span>
<span class="local-variable">this</span>.source = <span class="local-variable">this</span>.context.createMediaElementSource(<span class="local-variable">this</span>.audioElement);
<span class="local-variable">this</span>.source.connect(<span class="local-variable">this</span>.fftNode);
<span class="local-variable">this</span>.fftNode.connect(<span class="local-variable">this</span>.context.destination);
<span class="local-variable">this</span>.fftData = <span class="keyword">new</span> Uint8Array(<span class="local-variable">this</span>.fftNode.frequencyBinCount);
}
}
<span class="comment">// Cleanup the AudioContext</span>
<span class="local-variable">this</span>.<span class="function">audiocleanup</span> = <span class="keyword">function</span>() {
<span class="keyword">if</span> (<span class="local-variable">this</span>.audioElement) {
<span class="local-variable">this</span>.source = <span class="predefined-constant">null</span>;
<span class="local-variable">this</span>.fftNode = <span class="predefined-constant">null</span>;
<span class="local-variable">this</span>.audioElement = <span class="predefined-constant">null</span>;
}
<span class="keyword">if</span> (<span class="local-variable">this</span>.context) {
<span class="local-variable">this</span>.context = <span class="predefined-constant">null</span>;
}
<span class="local-variable">this</span>.currenttime = -<span class="integer">1</span>;
}
<span class="local-variable">this</span>.<span class="function">oninit</span> = <span class="keyword">function</span>(){
<span class="comment">//console.log('oninit');</span>
<span class="keyword">if</span> (<span class="local-variable">this</span>.autoplay)
<span class="local-variable">this</span>.play();
}
<span class="local-variable">this</span>.<span class="function">render</span> = <span class="keyword">function</span>(){
<span class="keyword">return</span> [
bargraphic({<span class="key">name</span>: <span class="string"><span class="delimiter">'</span><span class="content">viz</span><span class="delimiter">'</span></span>, <span class="key">width</span>: <span class="local-variable">this</span>.width, <span class="key">height</span>: <span class="local-variable">this</span>.height, <span class="key">fgcolor</span>: <span class="local-variable">this</span>.fgcolor, <span class="key">data</span>: <span class="local-variable">this</span>.fftData}
)]
}
})
</pre></td>
</tr></table>
</body>
</html>