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mp3play_html.h
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// index.html file in raw data format for PROGMEM
//
#define mp3play_html_version 180918
const char mp3play_html[] PROGMEM = R"=====(
<!DOCTYPE html>
<html>
<head>
<title>ESP32-radio</title>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
<link rel="stylesheet" type="text/css" href="radio.css">
<link rel="Shortcut Icon" type="image/ico" href="favicon.ico">
</head>
<body>
<ul>
<li><a class="pull-left" href="#">ESP32 Radio</a></li>
<li><a class="pull-left" href="/index.html">Control</a></li>
<li><a class="pull-left" href="/config.html">Config</a></li>
<li><a class="pull-left active" href="/mp3play.html">MP3 player</a></li>
<li><a class="pull-left" href="/about.html">About</a></li>
</ul>
<br><br><br>
<center>
<h1>** ESP32 Radio **</h1>
<label for="seltrack"><big>MP3 files on SD card:</big></label>
<br>
<select class="select selectw" onChange="trackreq(this)" id="seltrack">
<option value="-1">Select a track here</option>
</select>
<br><br>
<button class="button" onclick="httpGet('downpreset=1', true)">PREV</button>
<button class="button" onclick="httpGet('mp3track=0', true)">RANDOM</button>
<button class="button" onclick="httpGet('uppreset=1', true)">NEXT</button>
<br><br>
<br>
<input type="text" width="600px" size="120" id="resultstr" placeholder="Waiting for a command...."><br>
<br><br>
</center>
<script>
function httpGet ( theReq, fReset )
{
var theUrl = "/?" + theReq + "&version=" + Math.random() ;
var xhr = new XMLHttpRequest() ;
xhr.onreadystatechange = function() {
if ( xhr.readyState == XMLHttpRequest.DONE )
{
resultstr.value = xhr.responseText ;
}
}
xhr.open ( "GET", theUrl ) ;
xhr.send() ;
if ( fReset )
{
seltrack.value = -1 ;
}
}
function trackreq ( presctrl )
{
if ( presctrl.value != "-1" )
{
httpGet ( "mp3track=" + presctrl.value, false ) ;
}
}
// Fill track list initially
//
var i, select, opt, tracks, strparts ;
select = document.getElementById("seltrack") ;
var theUrl = "/?mp3list" ;
var xhr = new XMLHttpRequest() ;
xhr.onreadystatechange = function(){
if ( xhr.readyState == XMLHttpRequest.DONE )
{
tracks = xhr.responseText.split ( "\n" ) ;
for ( i = 0 ; i < ( tracks.length - 1 ) ; i++ ){
opt = document.createElement( "OPTION" ) ;
strparts = tracks[i].split ( "/" ) ;
opt.value = strparts[0] ;
opt.text = strparts[1] ;
select.add( opt ) ;
}
}
}
xhr.open ( "GET", theUrl, false ) ;
xhr.send() ;
</script>
</body>
</html>
)=====" ;