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118 lines
2.9 KiB
118 lines
2.9 KiB
<!DOCTYPE html>
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<meta charset="utf-8" />
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<title>WebSocket Test</title>
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<style type="text/css">
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body {
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font-size: 16pt;
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}
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#circle_of_people {
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position: absolute;
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background-color: #fda;
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width: 400px;
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height: 400px;
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opacity: 0.5;
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}
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.user {
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-webkit-transition: left 0.5s, top 0.5s;
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font-size: 20px;
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position: absolute;
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}
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.user .name {
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border-radius: 2px;
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font-size: 12px;
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padding: 2px;
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background-color: #0af;
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}
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</style>
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<script type="text/javascript" src="connection.js"></script>
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<script language="javascript" type="text/javascript">
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var myName = Math.random().toString(36).substring(7);
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var websocket;
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function init() {
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document.getElementById("myName").innerHTML = myName;
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if ("WebSocket" in window){
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testWebSocket();
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} else {
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document.getElementById("status").innerHTML = 'No websockets :(';
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}
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}
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function testWebSocket() {
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websocket = new WebSocket(wsURI);
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websocket.onopen = function (evt) { onOpen(evt) };
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websocket.onclose = function (evt) { onClose(evt) };
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websocket.onmessage = function (evt) { onMessage(evt) };
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websocket.onerror = function (evt) { onError(evt) };
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}
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function onOpen(evt) {
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document.getElementById("status").innerHTML = "CONNECTED";
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doSend();
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}
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function onMessage(evt) {
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var circle = document.getElementById("circle_of_people");
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var people = JSON.parse(evt.data);
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for (var i = people.length - 1; i >= 0; i--) {
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var user = document.getElementById(people[i].name);
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if(user){
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user.style.left = people[i].position.x + "px";
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user.style.top = people[i].position.y + "px";
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} else {
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var name = document.createElement('span')
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name.className = "name";
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name.innerText = people[i].name;
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var user = document.createElement('div');
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user.id = people[i].name;
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user.className = 'user';
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user.innerHTML = '• ';
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user.appendChild(name);
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user.style.left = people[i].position.x + "px";
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user.style.top = people[i].position.y + "px";
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circle.appendChild(user);
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}
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}
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var nodes = circle.childNodes;
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for(var i = nodes.length -1; i >= 0; i--) {
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var should_remove = true;
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for (var j = people.length - 1; j >= 0; j--){
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if(people[j].name == nodes[i].id) {
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should_remove = false;
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break;
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}
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}
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if(should_remove){
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circle.removeChild(nodes[i]);
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}
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}
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setTimeout(function(){
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doSend();
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}, 500);
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}
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function doSend(message) {
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var myself = {
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name: myName,
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size: {width: window.innerWidth, height: window.innerHeight}
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};
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websocket.send(JSON.stringify(myself));
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}
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function onError(evt) {
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document.getElementById("status").innerHTML = 'ERROR: ' + evt.data;
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}
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function onClose(evt) {
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document.getElementById("status").innerHTML = "DISCONNECTED";
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}
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window.addEventListener("load", init, false);
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</script>
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<p>My name is: <span id="myName"></span>
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<p>Status: <span id="status">unknown</span>
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<div id="circle_of_people"></div>
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</html>
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