<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, user-scalable=no" />
<title>HTML5 Speedtest</title>
<style type="text/css">
	html,body{
		border:none; padding:0; margin:0;
		background:#FFFFFF;
		color:#202020;
	}
	body{
		text-align:center;
		font-family:"Roboto",sans-serif;
	}
	h1{
		color:#404040;
	}
	#startStopBtn{
		display:inline-block;
		margin:0 auto;
		color:#6060AA;
		background-color:rgba(0,0,0,0);
		border:0.15em solid #6060FF;
		border-radius:0.3em;
		transition:all 0.3s;
		box-sizing:border-box;
		width:8em; height:3em;
		line-height:2.7em;
		cursor:pointer;
		box-shadow: 0 0 0 rgba(0,0,0,0.1), inset 0 0 0 rgba(0,0,0,0.1);
	}
	#startStopBtn:hover{
		box-shadow: 0 0 2em rgba(0,0,0,0.1), inset 0 0 1em rgba(0,0,0,0.1);
	}
	#startStopBtn.running{
		background-color:#FF3030;
		border-color:#FF6060;
		color:#FFFFFF;
	}
	#startStopBtn:before{
		content:"Start";
	}
	#startStopBtn.running:before{
		content:"Abort";
	}
	#test{
		margin-top:2em;
		margin-bottom:12em;
	}
	div.testArea{
		display:inline-block;
		width:14em;
		height:9em;
		position:relative;
		box-sizing:border-box;
	}
	div.testName{
		position:absolute;
		top:0.1em; left:0;
		width:100%;
		font-size:1.4em;
		z-index:9;
	}
	div.meterText{
		position:absolute;
		bottom:1.5em; left:0;
		width:100%;
		font-size:2.5em;
		z-index:9;
	}
	#dlText{
		color:#6060AA;
	}
	#ulText{
		color:#309030;
	}
	#pingText,#jitText{
		color:#AA6060;
	}
	div.meterText:empty:before{
		color:#505050 !important;
		content:"0.00";
	}
	div.unit{
		position:absolute;
		bottom:2em; left:0;
		width:100%;
		z-index:9;
	}
	div.testGroup{
		display:inline-block;
	}
	@media all and (max-width:65em){
		body{
			font-size:1.5vw;
		}
	}
	@media all and (max-width:40em){
		body{
			font-size:0.8em;
		}
		div.testGroup{
			display:block;
			margin: 0 auto;
		}
	}

</style>
<script type="text/javascript">
function I(id){return document.getElementById(id);}

var w=null; //speedtest worker
function startStop(){
	if(w!=null){
		//speedtest is running, abort
		w.postMessage('abort');
		w=null;
		I("startStopBtn").className="";
		initUI();
	}else{
		//test is not running, begin
		w=new Worker('speedtest_worker.min.js');
		w.postMessage('start'); //Add optional parameters as a JSON object to this command
		I("startStopBtn").className="running";
		w.onmessage=function(e){
			var data=e.data.split(';');
			var status=Number(data[0]);
			if(status>=4){
				//test completed
				I("startStopBtn").className="";
				w=null;
			}
			I("ip").textContent=data[4];
			I("dlText").textContent=(status==1&&data[1]==0)?"...":data[1];
			I("ulText").textContent=(status==3&&data[2]==0)?"...":data[2];
			I("pingText").textContent=data[3];
			I("jitText").textContent=data[5];
		};
	}
}
//poll the status from the worker every 200ms (this will also update the UI)
setInterval(function(){
	if(w) w.postMessage('status');
},200);
//function to (re)initialize UI
function initUI(){
	I("dlText").textContent="";
	I("ulText").textContent="";
	I("pingText").textContent="";
	I("jitText").textContent="";
	I("ip").textContent="";
}

</script>
</head>
<body>
<h1>HTML5 Speedtest</h1>
<div id="startStopBtn" onclick="startStop()"></div>
<div id="test">
	<div class="testGroup">
		<div class="testArea">
			<div class="testName">Download</div>
			<div id="dlText" class="meterText"></div>
			<div class="unit">Mbps</div>
		</div>
		<div class="testArea">
			<div class="testName">Upload</div>
			<div id="ulText" class="meterText"></div>
			<div class="unit">Mbps</div>
		</div>
	</div>
	<div class="testGroup">
		<div class="testArea">
			<div class="testName">Ping</div>
			<div id="pingText" class="meterText"></div>
			<div class="unit">ms</div>
		</div>
		<div class="testArea">
			<div class="testName">Jitter</div>
			<div id="jitText" class="meterText"></div>
			<div class="unit">ms</div>
		</div>
	</div>
	<div id="ipArea">
		IP Address: <span id="ip"></span>
	</div>
</div>
<a href="https://github.com/adolfintel/speedtest">Source code</a>
<script type="text/javascript">initUI();</script>
</body>
</html>