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index.html
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<html>
<head>
<title>
IO Chat
</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css">
<script src="http://code.jquery.com/jquery-latest.min.js"></script>
<script src="/socket.io/socket.io.js"></script>
<style>
body{
margin-top: 30px;
background-image: url("https://www.toptal.com/designers/subtlepatterns/patterns/ep_naturalblack.png");
background-attachment: fixed;
background-repeat: repeat;
}
#messageArea{
display: none;
}
#userForm label{
color:fff;
}
.list-group-items{
text-align: center;
text-decoration: none;
}
.list-group{
list-style: none;
}
.panel-footer {
background-color:transparent;
}
.well{
background-color: rgba(51, 122, 183, 0.05);
border: 3px solid rgba(51, 122, 183, 0.65);
border-radius: 20px;
}
.well h3{
color:ffffff;
}
.well ul li{
color:fff;
}
.chat{
color:#fff !important;
}
</style>
</head>
<body>
<div class="container">
<div id="userFormArea" class="row">
<div class="col-md-12">
<form id="userForm">
<div class="form-group">
<label>Enter Username:</label>
<input class="form-control" id="username"/>
<br>
<input type="submit" class="btn btn-primary" value="#">
</div>
</form>
</div>
</div>
<div id="messageArea" class="row">
<div class="col-md-4">
<div class="well">
<center><h3>Online Users</h3></center>
<ul class="list-group" id="users"></ul>
</div>
</div>
<div class="col-md-8">
<div class="chat" id="chat">
</div>
<form id="messageForm">
<div class="form-group">
<div class="panel-footer">
<div class="input-group">
<input type="text" id="message" class="form-control input-sm" placeholder="Type your message here..." />
<span class="input-group-btn">
<input type="submit" class="btn btn-primary btn-sm" id="btn-chat">
Send</button>
</span>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
<script>
$(function(){
var socket = io.connect();
var $messageForm = $('#messageForm');
var $message = $('#message');
var $chat = $('#chat');
var $userFormArea = $('#userFormArea');
var $userForm = $('#userForm');
var $messageArea = $('#messageArea');
var $users = $('#users');
var $username = $('#username');
$messageForm.submit((e) => {
e.preventDefault();
socket.emit('send message', $message.val());
$message.val('');
});
socket.on('new message', (data) => {
$chat.append('<div class="well"> <strong> ' + data.user + '</strong>: ' + data.msg + '</div>')
});
$userForm.submit((e) => {
e.preventDefault();
socket.emit('new user', $username.val(), (data) => {
if (data) {
$userFormArea.hide();
$messageArea.show();
}
});
$username.val('');
});
socket.on('get users', (data) => {
var html = '';
for (i = 0; i < data.length; i++){
html += '<li class="list-group-items">'+ data[i] + '</li>';
}
$users.html(html);
})
});
</script>
</body>
</html>