<html>
<head>
<title>SignalR Simple Chat</title>
<style type="text/css">
.container {
background-color: #99CCFF;
border: thick solid #808080;
padding: 20px;
margin: 20px;
}
</style>
</head>
<body>
<div class="container">
<input type="text" id="message" />
<input type="button" id="sendmessage" value="Send" />
<!--<input type="hidden" id="displayname" />-->
<ul id="discussion"></ul>
</div>
</body>
</html>
@import url(https://fonts.googleapis.com/css?family=Lato:400,700);
$green: #86BB71;
$blue: #94C2ED;
$orange: #E38968;
$gray: #92959E;
*,
*:before,
*:after {
box-sizing: border-box;
}
body {
background: #79A8A9;
font: 14px/20px "Lato", Arial, "儷黑 Pro", "微軟正黑體", sans-serif;
padding: 40px 0;
color: white;
}
.status {
position: absolute;
background: #444753;
width: 170px;
height: 200px;
padding: 15px;
left: 30px;
border-radius: 5px;
letter-spacing: 0.075rem;
li {
color: $gray;
margin: 10px 0;
}
}
.container {
margin: 0 auto;
width: 490px;
background: #444753;
border-radius: 5px;
}
.people-list {
width: 260px;
float: left;
.search {
padding: 20px;
}
input {
border-radius: 3px;
border: none;
padding: 14px;
color: white;
background: #6A6C75;
width: 90%;
font-size: 14px;
}
.fa-search {
position: relative;
left: -25px;
}
ul {
padding: 20px;
height: 770px;
li {
padding-bottom: 20px;
}
}
img {
float: left;
}
.about {
float: left;
margin-top: 8px;
}
.about {
padding-left: 8px;
}
.status {
color: $gray;
}
}
.chat {
width: 490px;
float: right;
background: #F2F5F8;
border-radius: 5px;
color: #434651;
.chat-header {
padding: 20px;
border-bottom: 2px solid white;
img {
float: left;
}
.chat-about {
float: left;
padding-left: 10px;
margin-top: 6px;
}
.chat-with {
font-weight: bold;
font-size: 16px;
}
.chat-num-messages {
color: $gray;
}
.fa-star {
float: right;
color: #D8DADF;
font-size: 20px;
margin-top: 12px;
}
}
.chat-history {
padding: 30px 30px 20px;
border-bottom: 2px solid white;
overflow-y: scroll;
height: 575px;
.message-data {
margin-bottom: 15px;
}
.message-data-time {
color: lighten($gray, 8%);
padding-left: 6px;
}
.message {
color: white;
padding: 18px 20px;
line-height: 26px;
font-size: 16px;
border-radius: 7px;
margin-bottom: 30px;
width: 90%;
position: relative;
&:after {
bottom: 100%;
left: 7%;
border: solid transparent;
content: " ";
height: 0;
width: 0;
position: absolute;
pointer-events: none;
border-bottom-color: $green;
border-width: 10px;
margin-left: -10px;
}
}
.my-message {
background: $green;
}
.other-message {
background: $blue;
&:after {
border-bottom-color: $blue;
left: 93%;
}
}
}
.chat-message {
padding: 30px;
textarea {
width: 100%;
border: none;
padding: 10px 20px;
font: 14px/22px "Lato", Arial, sans-serif;
margin-bottom: 10px;
border-radius: 5px;
resize: none;
}
.fa-file-o,
.fa-file-image-o {
font-size: 16px;
color: gray;
cursor: pointer;
}
button {
float: right;
color: $blue;
font-size: 16px;
text-transform: uppercase;
border: none;
cursor: pointer;
font-weight: bold;
background: #F2F5F8;
&:hover {
color: darken($blue, 7%);
}
}
}
}
.online,
.offline,
.me {
margin-right: 3px;
font-size: 10px;
}
.online {
color: $green;
}
.offline {
color: $orange;
}
.me {
color: $blue;
}
.align-left {
text-align: left;
}
.align-right {
text-align: right;
}
.float-right {
float: right;
}
.clearfix:after {
visibility: hidden;
display: block;
font-size: 0;
content: " ";
clear: both;
height: 0;
}
.hidden {
opacity: 0;
display: none;
}
View Compiled
document.addEventListener('DOMContentLoaded', function () {
var messageInput = document.getElementById('message');
// Get the user name and store it to prepend to messages.
var name = prompt('Enter your name:', '');
// Set initial focus to message input box.
messageInput.focus();
// Start the connection.
startConnection('https://localhost:44380/chat', function(connection) {
// Create a function that the hub can call to broadcast messages.
connection.on('broadcastMessage', function (name, message) {
// Html encode display name and message.
var encodedName = name;
var encodedMsg = message;
// Add the message to the page.
var liElement = document.createElement('li');
liElement.innerHTML = '<strong>' + encodedName + '</strong>: ' + encodedMsg;
document.getElementById('discussion').appendChild(liElement);
});
})
.then(function(connection) {
console.log('connection started');
document.getElementById('sendmessage').addEventListener('click', function (event) {
// Call the Send method on the hub.
connection.invoke('send', name, messageInput.value);
// Clear text box and reset focus for next comment.
messageInput.value = '';
messageInput.focus();
event.preventDefault();
});
})
.catch(error => {
console.error(error.message);
});
// Starts a connection with transport fallback - if the connection cannot be started using
// the webSockets transport the function will fallback to the serverSentEvents transport and
// if this does not work it will try longPolling. If the connection cannot be started using
// any of the available transports the function will return a rejected Promise.
function startConnection(url, configureConnection) {
return function start(transport) {
console.log(`Starting connection using ${signalR.TransportType[transport]} transport`)
var connection = new signalR.HubConnection(url, {transport: transport,useDefaultPath: false});
if (configureConnection && typeof configureConnection === 'function') {
configureConnection(connection);
}
return connection.start()
.then(function() {
return connection;
})
.catch(function(error) {
console.log(`Cannot start the connection use ${signalR.TransportType[transport]} transport. ${error.message}`);
if (transport !== signalR.TransportType.LongPolling) {
return start(transport + 1);
}
return Promise.reject(error);
});
}(signalR.TransportType.WebSockets);
}
});
View Compiled
