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Code Issues Releases Wiki Activity

js without jQuery (#342)

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Co-authored-by: Rob Ede <robjtede@icloud.com>
This commit is contained in:
Taisuke Fukuno 2020-11-01 00:55:23 +09:00 committed by GitHub
parent 7148fd3d0e
commit 542e6dbcdd
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1 changed files with 107 additions and 85 deletions
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192
websocket-chat/static/websocket.html
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@ -1,90 +1,112 @@
<!DOCTYPE html> <!DOCTYPE html>
<meta charset="utf-8" />
<html> <html>
<head> <head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"> <title>Chat!</title>
</script>
<script language="javascript" type="text/javascript"> <meta charset="utf-8" />
$(function() {
var conn = null; <script>
function log(msg) { 'use strict'
var control = $('#log');
control.html(control.html() + msg + '<br/>'); window.onload = () => {
control.scrollTop(control.scrollTop() + 1000); let conn = null
}
function connect() { const log = (msg) => {
disconnect(); div_log.innerHTML += msg + '<br>'
var wsUri = (window.location.protocol=='https:'&&'wss://'||'ws://')+window.location.host + '/ws/'; div_log.scroll(0, div_log.scrollTop + 1000)
conn = new WebSocket(wsUri); }
log('Connecting...');
conn.onopen = function() { const connect = () => {
log('Connected.'); disconnect()
update_ui();
}; const wsUri =
conn.onmessage = function(e) { (window.location.protocol === 'https:' ? 'wss://' : 'ws://') +
log('Received: ' + e.data); window.location.host +
}; '/ws/'
conn.onclose = function() {
log('Disconnected.'); conn = new WebSocket(wsUri)
conn = null; log('Connecting...')
update_ui();
}; conn.onopen = function () {
} log('Connected.')
function disconnect() { update_ui()
if (conn != null) { }
log('Disconnecting...');
conn.close(); conn.onmessage = function (e) {
conn = null; log('Received: ' + e.data)
update_ui(); }
conn.onclose = function () {
log('Disconnected.')
conn = null
update_ui()
}
}
const disconnect = () => {
if (conn) {
log('Disconnecting...')
conn.close()
conn = null
update_ui()
}
}
const update_ui = () => {
if (!conn) {
span_status.textContent = 'disconnected'
btn_connect.textContent = 'Connect'
} else {
span_status.textContent = `connected (${conn.protocol})`
btn_connect.textContent = 'Disconnect'
}
}
btn_connect.onclick = () => {
if (!conn) {
connect()
} else {
disconnect()
}
update_ui()
}
btn_send.onclick = () => {
if (!conn) return
const text = input_text.value
log('Sending: ' + text)
conn.send(text)
input_text.value = ''
input_text.focus()
}
input_text.onkeyup = (e) => {
if (e.key === 'Enter') {
btn_send.click()
}
} }
} }
function update_ui() { </script>
var msg = ''; </head>
if (conn == null) {
$('#status').text('disconnected'); <body>
$('#connect').html('Connect'); <h3>Chat!</h3>
} else { <div>
$('#status').text('connected (' + conn.protocol + ')'); <button id="btn_connect">Connect</button>
$('#connect').html('Disconnect'); Status: <span id="span_status">disconnected</span>
} </div>
}
$('#connect').click(function() { <div
if (conn == null) { id="div_log"
connect(); style="width: 20em; height: 15em; overflow: auto; border: 1px solid black"
} else { ></div>
disconnect();
} <input id="input_text" type="text" />
update_ui(); <input id="btn_send" type="button" value="Send" />
return false; </body>
});
$('#send').click(function() {
var text = $('#text').val();
log('Sending: ' + text);
conn.send(text);
$('#text').val('').focus();
return false;
});
$('#text').keyup(function(e) {
if (e.keyCode === 13) {
$('#send').click();
return false;
}
});
});
</script>
</head>
<body>
<h3>Chat!</h3>
<div>
<button id="connect">Connect</button>&nbsp;|&nbsp;Status:
<span id="status">disconnected</span>
</div>
<div id="log"
style="width:20em;height:15em;overflow:auto;border:1px solid black">
</div>
<form id="chatform" onsubmit="return false;">
<input id="text" type="text" />
<input id="send" type="button" value="Send" />
</form>
</body>
</html> </html>