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<!DOCTYPE html> | |
<html> | |
<head> | |
<title>Apache Tomcat WebSocket Examples: Chat</title> | |
<style type="text/css"> | |
input#chat { | |
width: 410px | |
} | |
#console-container { | |
width: 400px; | |
} | |
#console { | |
border: 1px solid #CCCCCC; | |
border-right-color: #999999; | |
border-bottom-color: #999999; | |
height: 170px; | |
overflow-y: scroll; | |
padding: 5px; | |
width: 100%; | |
} | |
#console p { | |
padding: 0; | |
margin: 0; | |
} | |
</style> | |
<script type="text/javascript"> | |
var Chat = {}; | |
Chat.socket = null; | |
Chat.connect = (function(host) { | |
if ('WebSocket' in window) { | |
Chat.socket = new WebSocket(host); | |
} else if ('MozWebSocket' in window) { | |
Chat.socket = new MozWebSocket(host); | |
} else { | |
Console.log('Error: WebSocket is not supported by this browser.'); | |
return; | |
} | |
Chat.socket.onopen = function () { | |
Console.log('Info: WebSocket connection opened.'); | |
document.getElementById('chat').onkeydown = function(event) { | |
if (event.keyCode == 13) { | |
Chat.sendMessage(); | |
} | |
}; | |
}; | |
Chat.socket.onclose = function () { | |
document.getElementById('chat').onkeydown = null; | |
Console.log('Info: WebSocket closed.'); | |
}; | |
Chat.socket.onmessage = function (message) { | |
Console.log(message.data); | |
}; | |
}); | |
Chat.initialize = function() { | |
if (window.location.protocol == 'http:') { | |
Chat.connect('ws://' + window.location.host + '/examples/websocket/tc7/chat'); | |
} else { | |
Chat.connect('wss://' + window.location.host + '/examples/websocket/tc7/chat'); | |
} | |
}; | |
Chat.sendMessage = (function() { | |
var message = document.getElementById('chat').value; | |
if (message != '') { | |
Chat.socket.send(message); | |
document.getElementById('chat').value = ''; | |
} | |
}); | |
var Console = {}; | |
Console.log = (function(message) { | |
var console = document.getElementById('console'); | |
var p = document.createElement('p'); | |
p.style.wordWrap = 'break-word'; | |
p.innerHTML = message; | |
console.appendChild(p); | |
while (console.childNodes.length > 25) { | |
console.removeChild(console.firstChild); | |
} | |
console.scrollTop = console.scrollHeight; | |
}); | |
Chat.initialize(); | |
</script> | |
</head> | |
<body> | |
<noscript><h2 style="color: #ff0000">Seems your browser doesn't support Javascript! Websockets rely on Javascript being enabled. Please enable | |
Javascript and reload this page!</h2></noscript> | |
<div> | |
<p> | |
<input type="text" placeholder="type and press enter to chat" id="chat"> | |
</p> | |
<div id="console-container"> | |
<div id="console"></div> | |
</div> | |
</div> | |
</body> | |
</html> |