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index.html
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<!DOCTYPE html>
<html>
<head><title>Hello world</title></head>
<script src="/socket.io/socket.io.js"></script>
<meta name="viewport" content="width=device-width, initial-scale=1">
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="/styles.css">
<script>
var socket = io();
function setUsername(){
var nickname = (document.getElementById('name').value).trim();
if(nickname){
socket.emit('setUsername', nickname);
}
else{
alert('Enter Valid User Name !! ');
}
};
var user;
socket.on('userExists', function(data){
document.getElementById('error-container').innerHTML = data;
});
socket.on('userSet', function(data){
user = (data.username).split(',');
document.getElementById('main').innerHTML = '<div onKeyPress="return checkSubmit(event)"><div id="user_count"class="alert alert-danger"></div>\
<i id="nick" style="color:red;">'+ user + ' </i> : <input type="text" id="message">\
<button type="button" name="button" onclick="sendMessage()" >Send</button>\
<table id="one"><tbody id="message-container"></tbody></table>\
</div>';
});
socket.on('news', function (data) {
document.getElementById('user_count').innerHTML=data.message + " Users Connected";
});
socket.on('newmsg', function(data){
if(user){
document.getElementById('message-container').innerHTML += '<tr>\
<th>' + data.user + '</b>: ' + data.message + '</th></tr>';
}
});
socket.on('disconnect', function(data){
alert(user);
});
function sendMessage(){
var msg = document.getElementById('message').value;
if(msg){
socket.emit('msg', {message: msg, user: user});
// clearing text box
document.getElementById('message').value = "";
// setting focus on text box every time
document.getElementById("message").focus();
}
// insert ELSE logic here
};
function checkSubmit(e) {
if(e && e.keyCode == 13) {
sendMessage(); //if enter send text
}
};
</script>
<body id="body">
<br/>
<div class="container">
<div class="row"><div class="col-xs-6 col-lg-6">
<div id ="main">
<div id="error-container"></div>
<input id="name" type="text" name="name" value="" placeholder="Enter your name!">
<button type="button" name="button" onclick="setUsername()">Let me chat!</button>
</div>
</div>
</div>
</body>
</html>