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<!DOCTYPE html>
<html>
<head>
<title>MIDIPLAY</title>
<style>
.button{
width: 200px;
height: 150px;
font-size: 20px;
}
.selected{
color: #FF8080;
}
.normal{
color: #000000;
}
</style>
<script type="text/javascript">
function get_filelist(){
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (this.readyState != 4) {
return;
}
if (this.status != 200) {
document.getElementById("status").innerHTML = "HTTP error";
} else {
var xml = xhr.responseXML;
var selected_file = xml.getElementsByTagName("selected")[0].childNodes[0].nodeValue;
var list = xml.getElementsByTagName("list")[0].getElementsByTagName("filename");
var n = list.length;
var value = "";
for (var i = 0; i < n; ++i) {
var filename = list[i].childNodes[0].nodeValue;
value += "<span class=\"" + (filename == selected_file ? "selected" : "normal") + "\">" + filename + "</span><br/>"
}
document.getElementById("songlist").innerHTML = value;
}
}
xhr.open("POST", "midiplay.fcgi" + "?command=getlist", true);
xhr.setRequestHeader("Content-type", "text/xml");
xhr.send("");
}
function playbutton_clicked()
{
var action = "start";
var element = document.getElementById("playbutton");
if (element.innerHTML == "Play") {
element.innerHTML = "Stop";
} else {
element.innerHTML = "Play";
action = "stop";
}
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (this.readyState != 4) {
return;
}
if (this.status != 200) {
document.getElementById("status").innerHTML = "HTTP error";
} else {
var xml = xhr.responseXML;
var message = xml.getElementsByTagName("message")[0].childNodes[0].nodeValue;
document.getElementById("status").innerHTML = message;
}
}
xhr.open("POST", "midiplay.fcgi" + "?command=" + action, true);
xhr.setRequestHeader("Content-type", "text/xml");
xhr.send("");
}
function songlist_clicked()
{
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function() {
if (this.readyState != 4) {
return;
}
if (this.status != 200) {
document.getElementById("status").innerHTML = "HTTP error";
} else {
var xml = xhr.responseXML;
var message = xml.getElementsByTagName("message")[0].childNodes[0].nodeValue;
document.getElementById("status").innerHTML = message;
get_filelist(); // trigger reload
}
}
xhr.open("POST", "midiplay.fcgi" + "?command=setfile", true);
xhr.setRequestHeader("Content-type", "text/xml");
xhr.send("<data><value>magic.midi</value></data>");
}
function startup() {
document.getElementById("playbutton").onclick = playbutton_clicked;
document.getElementById("songlist").onclick = songlist_clicked;
get_filelist();
}
</script>
</head>
<body onload="startup();">
MIDIPLAY
<br/>
<br/>
<div id="songlist">
(Loading Songlist...)
</div>
<br/>
<br/>
<button id="playbutton" class="button">Play</button>
<br>
<div>
Status: <span id="status">ok</span>
</div>
</body>
</html>
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