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import React from 'react';
import { InputGroup } from 'reactstrap';
import ResizeObserver from "react-resize-observer";
import { ToggleSlider } from 'react-toggle-slider';
import { Terminal } from 'xterm';
import { FitAddon } from 'xterm-addon-fit';
import { ThemeContext, themes } from './theme';
import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
import { faSun, faMoon } from '@fortawesome/free-solid-svg-icons';
import './App.css';
import './xterm.css';
function App() {
const [darkMode, setDarkMode] = React.useState(true);
return (
<div className='App'>
<header className='App-header'>
<InputGroup>
<ThemeContext.Consumer>
{({ changeTheme }) => (
<div className='toggle-slider'>
<FontAwesomeIcon icon={faSun} size='xl' />
<ToggleSlider
onToggle={() => {
setDarkMode(!darkMode);
changeTheme(darkMode ? themes.light : themes.dark);
}}
/>
<FontAwesomeIcon icon={faMoon} size='xl' />
</div>
)}
</ThemeContext.Consumer>
</InputGroup>
<TerminalComponent />
<Sidebar />
</header>
</div>
);
}
class TerminalComponent extends React.Component {
constructor(props) {
super(props);
this.fitAddon = new FitAddon();
this.term = new Terminal({
screenKeys: true,
useStyle: true,
cursorBlink: true,
fontSize: 18,
fontWeight: 900,
fontFamily: `'Fira Mono', monospace`,
theme: {
foreground: "#fff",
background: "#000",
cursor: "#fff",
cursorAccent: "#000",
selection: "#fff",
},
});
this.command = "";
}
componentDidMount() {
this.encoder = new TextEncoder();
this.decoder = new TextDecoder();
this.socket = new WebSocket('ws://localhost:8000/ws');
this.socket.binaryType = 'arraybuffer';
function ab2str(buf) {
return String.fromCharCode.apply(null, new Uint8Array(buf));
}
this.term.loadAddon(this.fitAddon);
this.term.open(document.getElementById("xterm"));
this.fitAddon.fit();
// Terminal events
this.term.onData((data) => {
//this.socket.send(this.encoder.encode("\x00" + data));
switch (data) {
// text is Enter
case '\r':
if (this.command === "clear") {
this.term.clear();
}
else {
handleSend(this.encoder.encode("\x00" + this.command));
}
this.term.write("\r\n$ ");
this.command = "";
break;
// text is Backspace
case '\u007F':
if (this.command.length > 0) {
this.command = this.command.substring(0, this.command.length - 1);
this.term.write('\b \b');
}
break;
// text is Ctrl+C
case '\u0003': // we don't want to send ctrl+c to the server
//this.term.write('^C');
break;
default:
this.command += data;
this.term.write(data);
// if ((data <= String.fromCharCode(0x7B) && data.String.fromCharCode(0x20)) || data >= '\u00a0') {
// }
break;
}
});
this.term.onResize((evt) => {
//this.socket.send(this.encoder.encode("\x01" + JSON.stringify({ cols: evt.cols, rows: evt.rows })))
handleSend(this.encoder.encode("\x01" + JSON.stringify({ cols: evt.cols, rows: evt.rows })));
});
this.term.onTitleChange((title) => {
document.title = title;
});
// Socket events
this.socket.onmessage = (evt) => {
if (evt.data instanceof ArrayBuffer) {
this.term.write(ab2str(evt.data.slice(1)));
} else {
alert(evt.data)
}
}
this.socket.onclose = (evt) => {
this.term.write("Session terminated\r\n$ ");
}
this.socket.onerror = (evt) => {
if (typeof console.log == "function") {
console.log(evt)
}
}
const handleSend = (message) => {
if (this.socket.readyState === WebSocket.OPEN) {
// If the socket is open, go ahead and send message
this.socket.send(message);
}
else if (this.socket.readyState === WebSocket.CONNECTING) {
// If the socket is connecting, wait until it is open
// and try again
this.socket.addEventListener('open', () => handleSend(message));
}
}
this.fitAddon.fit();
}
render() {
return (
<div className="terminalContainer">
<div id="xterm" style={{ height: "100%", width: "100%" }} />
<ResizeObserver
onResize={() => {
this.fitAddon.fit();
}}
/>
</div>
);
}
}
class Sidebar extends React.Component {
// a sidebar which can take you to other pages
// constructor(props) {
// super(props);
// }
createTemplate(){
// location.replace("index.html");
console.log("create template");
}
toStudentView() {
// location.replace("index.html");
console.log("student view");
}
logOut() {
// location.replace("index.html");
console.log("log out");
}
render() {
return (
<div className="sidenav">
<ul>
<li><div class="sidenavButton" onClick={() => this.createTemplate()}>Create Template</div></li>
<li><div class="sidenavButton" onClick={() => this.toStudentView()}>View as Student</div></li>
<li><div class="sidenavButton" onClick={() => this.logOut()}>Log Out</div></li>
</ul>
</div>
);
}
}
export default App;
|
