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index.html
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<!DOCTYPE html>
<html>
<head>
<title>Hello Websockets a la Clojure</title>
<style>
body {font-family: 'Comic Sans MS'}
</style>
</head>
<body>
<input type="text" id="input_text" />
<input type="button" id="send_button" value="Send"/>
<div id="messages">
</div>
<script>
ws = new WebSocket("ws://localhost:9000");
window.onbeforeunload = function(){
console.log('on beforeunload');
ws.close();
};
ws.onmessage = function(event) {
console.log('on message');
var messages = document.getElementById('messages');
var message = document.createElement('div');
message.innerHTML = event.data;
message.setAttribute('class', 'message');
messages.appendChild(message);
};
ws.onopen = function(event) {
ws.send("Connected.");
};
ws.onerror = function (error) {
console.log('WebSocket Error: ' + error);
};
ws.state_string = function() {
var states = {
0: 'connecting',
1: 'open',
2: 'closing',
3: 'closed'
};
return states[this.readyState];
};
var transmit = function() {
var text = document.getElementById('input_text');
ws.send(text.value);
text.value = '';
};
transmitter = document.getElementById('input_text');
transmitter.addEventListener('change', transmit);
send_button = document.getElementById('send_button');
send_button.addEventListener('click', transmit);
</script>
</body>
</html>