Multi-user gravity beats for Sound of Science 2013 (website)
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<!DOCTYPE html>
<meta charset="utf-8" />
<title>WebSocket Test</title>
<script language="javascript" type="text/javascript">
var websocket;
var list_of_people;
function init() {
testWebSocket();
}
function testWebSocket() {
websocket = new WebSocket("ws://127.0.0.1:7681", "observer");
websocket.onopen = function (evt) { onOpen(evt) };
websocket.onclose = function (evt) { onClose(evt) };
websocket.onmessage = function (evt) { onMessage(evt) };
websocket.onerror = function (evt) { onError(evt) };
}
function onOpen(evt) {
document.getElementById("status").innerHTML = "CONNECTED";
// needs to be non-empty
websocket.send("a");
}
function onMessage(evt) {
list_of_people = JSON.parse(evt.data);
}
function onError(evt) {
document.getElementById("status").innerHTML = 'ERROR: ' + evt.data;
}
function onClose(evt) {
document.getElementById("status").innerHTML = "DISCONNECTED";
}
window.addEventListener("load", init, false);
</script>
<p>Response of server: <span id="people"></span>
<p>Status: <span id="status">unknown</span>
</html>