<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>WebSocket Test</title>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<style type="text/css">
body {
background-color: #cde; margin: 0;
padding: 0; font: 14px Helvetica, Arial, sans-serif;
}
div.content {
width: 800px; margin: 2em auto; padding: 20px 50px;
background-color: #fff; border-radius: 1em;
}
#messages {
border: 2px solid #fec; border-radius: 1em;
height: 10em; overflow: scroll; padding: 0.5em 1em;
}
a:link, a:visited { color: #69c; text-decoration: none; }
@media (max-width: 700px) {
body { background-color: #fff; }
div.content {
width: auto; margin: 0 auto; border-radius: 0;
padding: 1em;
}
}
</style>
<script language="javascript" type="text/javascript">
var rooms = [];
var ws = new WebSocket('ws://' + location.host + '/ws');
if (!window.console) { window.console = { log: function() {} } };
ws.onopen = function(ev) { console.log(ev); };
ws.onerror = function(ev) { console.log(ev); };
ws.onclose = function(ev) { console.log(ev); };
ws.onmessage = function(ev) {
console.log(ev);
var m = (ev.data || '').match(/^(\S+) (.+)/);
if (m[1] == 'id') {
document.getElementById('my_id').innerText = m[2];
} else if (m[1] == 'msg') {
var div = document.createElement('div');
div.innerHTML = m[2];
document.getElementById('messages').appendChild(div);
}
};
window.onload = function() {
document.getElementById('send_button').onclick = function(ev) {
var msg = document.getElementById('send_input').value;
ws.send('msg ' + msg);
};
document.getElementById('room_sel').onchange = function(ev) {
var roomName = this.value || '?';
ws.send('join ' + roomName);
};
};
</script>
</head>
<body>
<div class="content">
<h1>Websocket PubSub Demonstration</h1>
<p>
This page demonstrates how Mongoose web server could be used to implement
<a href="http://en.wikipedia.org/wiki/Publish%E2%80%93subscribe_pattern">
publish–subscribe pattern</a>. Open this page in several browser
windows. Each window initiates persistent
<a href="http://en.wikipedia.org/wiki/WebSocket">WebSocket</a>
connection with Mongoose, making each browser window a websocket client.
Join a room, send messages, and see messages sent by other clients.
</p>
<p>
My ID: <b><span id="my_id"></b></span>
</p>
<p>
Join room: <select id="room_sel">
<option value="">-- select room -- </option>
<option>A</option>
<option>B</option>
</select>
</p>
<div id="messages">
</div>
<p>
<input type="text" id="send_input" />
<button id="send_button">Send Message</button>
</p>
</div>
</body>
</html>