178 lines
4.4 KiB
HTML
178 lines
4.4 KiB
HTML
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<!DOCTYPE html>
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<html>
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<head>
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<link rel="stylesheet" href="xterm.css" />
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<script src="xterm.js"></script>
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<script src="xterm-addon-fit.js"></script>
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<script src="jquery.js"></script>
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</head>
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<style>
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body {
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font-family: sans;
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}
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</style>
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<body>
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<div id="terminal" style="height: 90vh"></div>
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<input type="text" id="line" style="width: 50%"></input>
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<select id="eol">
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<option value="cr">CR</option>
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<option value="lf">LF</option>
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<option value="crlf">CR/LF</option>
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<option value="none">None</option>
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<option value="hex">Hex</option>
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</select>
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<button id="sendbtn" type="button">SEND</button>
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<input type="checkbox" id="echo" checked>Echo</input>
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<button type="button" id="clear">CLEAR</button>
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<br>
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<span id="status">Connecting...</span>
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<script>
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var line_items = [];
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var idx = -1;
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function parseHexString(str) {
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str = str.replace("0x", "");
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str = str.replace(" ", "");
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var result = [];
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while (str.length >= 2) {
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result.push(parseInt(str.substring(0, 2), 16));
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str = str.substring(2, str.length);
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}
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return result;
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}
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function sendLine() {
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var line = document.querySelector("#line").value;
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var type = document.querySelector("#eol").value;
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var echo = document.querySelector("#echo").checked;
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if (!line_items.includes(line)) {
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line_items.push(line)
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idx = line_items.length - 1
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}
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if (type == "cr") line += "\r"
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else if (type == "lf") line += "\n"
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else if (type == "crlf") line += "\r\n"
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else if (type == "hex") {
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line = parseHexString(line)
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}
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if (echo)
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term.write(line)
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socket.send(line)
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}
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document.querySelector("#clear").onclick = event => {
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term.clear();
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}
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document.querySelector("#sendbtn").onclick = event => {
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sendLine();
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}
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document.querySelector("#line").addEventListener("keydown", event => {
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if (event.key == "ArrowUp") {
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console.log(idx)
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if (line_items.length - 1 == idx) idx--;
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event.srcElement.value = line_items[idx]
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if (idx > 0) idx--;
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}
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if (event.key == "ArrowDown") {
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console.log(idx)
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if (idx < line_items.length - 1) {
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idx++;
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}
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event.srcElement.value = line_items[idx]
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}
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if (event.key !== "Enter") return;
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sendLine();
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event.preventDefault(); // No need to `return false;`.
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});
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var term = new Terminal({ cursorBlink: true, convertEol: true });
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var fitAddon = new FitAddon.FitAddon();
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term.loadAddon(fitAddon);
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var socket;
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function createSocket() {
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if (socket && !socket.replacementCreated) {
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socket.close();
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}
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socket = new WebSocket("ws://" + window.location.host + "/ws/rtt");
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socket.binaryType = 'arraybuffer';
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socket.replacementCreated = false;
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socket.ontimeout = function () {
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if (socket.readyState == WebSocket.OPEN) {
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socket.send('');
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}
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};
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socket.onopen = function (event) {
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$("#status").text("Connected");
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if (firstConnection) {
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term.write("\x1B[1;3;31m[Websocket] Connection established\x1B[0m\r\n");
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} else {
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term.write("[Websocket] Connection reestablished\n");
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}
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firstConnection = false;
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};
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socket.onmessage = function (event) {
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term.write(new Uint8Array(event.data));
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};
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socket.onerror = function (event) {
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socket.close();
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}
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socket.onclose = function (event) {
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socket.onerror = undefined;
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socket.onclose = undefined;
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if (event.wasClean) {
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$("#status").text("Connection closed");
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} else {
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$("#status").text("Reconnecting...");
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}
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clearInterval(socket.intervalId);
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if (!socket.replacementCreated) {
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socket.replacementCreated = true;
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createSocket();
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} else {
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console.log("a replacement socket was already being created -- skipping");
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}
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};
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socket.intervalId = setInterval(socket.ontimeout, 2000, socket);
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}
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createSocket();
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term.open(document.getElementById('terminal'));
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term.onData(chunk => {
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socket.send(chunk)
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})
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fitAddon.activate(term)
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fitAddon.fit()
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term.focus()
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window.addEventListener('resize', () => { fitAddon.fit() });
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</script>
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</body>
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</html>
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