207 lines
5.4 KiB
HTML
207 lines
5.4 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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</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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<button id="sendbrk" type="button">BRK</button>
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<input type="checkbox" id="echo" checked>Echo</input>
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<button type="button" id="setbaud">SET BAUD</button>
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<button type="button" id="clear">CLEAR</button>
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<br>
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Baud: <span id="curbaud">-</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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// Ignore any trailing single digit; I don't know what your needs
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// are for this case, so you may want to throw an error or convert
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// the lone digit depending on your needs.
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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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let xhr = new XMLHttpRequest();
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// 2. Configure it: GET-request for the URL /article/.../load
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xhr.open('GET', '/uart/baud');
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// 3. Send the request over the network
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xhr.send();
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// 4. This will be called after the response is received
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xhr.onload = function () {
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if (xhr.status != 200) { // analyze HTTP status of the response
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alert(`Error ${xhr.status}: ${xhr.statusText}`); // e.g. 404: Not Found
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} else { // show the result
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let d = xhr.response
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d = JSON.parse(d)
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document.querySelector("#curbaud").textContent = d["baudrate"]
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}
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};
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function sendBreak() {
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let xhr = new XMLHttpRequest();
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xhr.open('GET', '/uart/break');
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// 3. Send the request over the network
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xhr.send();
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}
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function setBaud(baud) {
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let xhr = new XMLHttpRequest();
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// 2. Configure it: GET-request for the URL /article/.../load
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xhr.open('GET', '/uart/baud?set=' + baud);
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// 3. Send the request over the network
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xhr.send();
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xhr.onload = function () {
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let d = xhr.response
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d = JSON.parse(d)
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document.querySelector("#curbaud").textContent = d["baudrate"]
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};
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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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//console.log(type)
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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("#setbaud").onclick = event => {
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let baud = window.prompt("Enter baud rate", "115200")
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if (baud) {
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baud = parseInt(baud);
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setBaud(baud);
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}
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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("#sendbrk").onclick = event => {
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sendBreak();
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}
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document.querySelector("#line").addEventListener("keydown", event => {
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//console.log(event.key)
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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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socket = new WebSocket("ws://" + window.location.host + "/ws/uart");
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socket.binaryType = 'arraybuffer';
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socket.onopen = function (e) {
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term.write("\x1B[1;3;31m[Websocket] Connection established\x1B[0m\r\n");
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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.onclose = function (event) {
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if (event.wasClean) {
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term.write("[Websocket] Connection closed");
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} else {
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// e.g. server process killed or network down
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// event.code is usually 1006 in this case
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term.write("[Websocket] Connection died");
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}
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createSocket();
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};
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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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