mirror of
https://github.com/denoland/deno.git
synced 2024-12-27 01:29:14 -05:00
81 lines
2.4 KiB
HTML
81 lines
2.4 KiB
HTML
<html lang="en">
|
|
<head>
|
|
<meta charset="UTF-8" />
|
|
<title>ws chat example</title>
|
|
</head>
|
|
<body>
|
|
<div>
|
|
<input type="text" id="input" />
|
|
<button id="sendButton" disabled>send</button>
|
|
<button id="connectButton" disabled>connect</button>
|
|
<button id="closeButton" disabled>close</button>
|
|
</div>
|
|
<div id="status"></div>
|
|
<ul id="timeline"></ul>
|
|
<script>
|
|
let ws;
|
|
function messageDom(msg) {
|
|
const div = document.createElement("li");
|
|
div.className = "message";
|
|
div.innerText = msg;
|
|
return div;
|
|
}
|
|
const timeline = document.getElementById("timeline");
|
|
const sendButton = document.getElementById("sendButton");
|
|
sendButton.onclick = send;
|
|
const closeButton =document.getElementById("closeButton");
|
|
closeButton.onclick=close;
|
|
const connectButton = document.getElementById("connectButton");
|
|
connectButton.onclick=connect;
|
|
const status = document.getElementById("status");
|
|
const input = document.getElementById("input");
|
|
input.addEventListener("keydown", keyDownEvent);
|
|
function send() {
|
|
const msg = input.value;
|
|
ws.send(msg);
|
|
applyState({inputValue: ""});
|
|
}
|
|
function keyDownEvent(e) {
|
|
if (e.keyCode === 13) return send();
|
|
}
|
|
function connect() {
|
|
if (ws) ws.close();
|
|
ws = new WebSocket(`ws://${location.host}/ws`);
|
|
ws.addEventListener("open", () => {
|
|
console.log("open", ws);
|
|
applyState({connected: true});
|
|
});
|
|
ws.addEventListener("message", ({data}) => {
|
|
timeline.appendChild(messageDom(data));
|
|
});
|
|
ws.addEventListener("close", () => {
|
|
applyState({connect: false});
|
|
});
|
|
}
|
|
function close() {
|
|
ws.close();
|
|
applyState({connected: false});
|
|
}
|
|
function applyState({connected, status, inputValue}) {
|
|
if (inputValue != null) {
|
|
input.value = inputValue;
|
|
}
|
|
if(status != null) {
|
|
status.innerText = status;
|
|
}
|
|
if (connected != null) {
|
|
if (connected) {
|
|
sendButton.disabled = false;
|
|
connectButton.disabled = true;
|
|
closeButton.disabled= false;
|
|
} else {
|
|
sendButton.disabled= true;
|
|
connectButton.disabled=false;
|
|
closeButton.disabled=true;
|
|
}
|
|
}
|
|
}
|
|
connect();
|
|
</script>
|
|
</body>
|
|
</html>
|