frontpage/components/REPLInput.tsx
2021-12-14 23:45:00 +01:00

35 lines
1.5 KiB
TypeScript

import type { NextPage } from "next";
import React from "react";
import { commandCompletion } from "../lib/commands";
import styles from "../styles/REPLInput.module.css";
const REPLInput: NextPage = () => {
const typed = React.createRef<HTMLSpanElement>();
const completion = React.createRef<HTMLSpanElement>();
const [currentCmd, setCurrentCmd] = React.useState("");
const replinOnChange = (e: React.FormEvent<HTMLInputElement>) => {
const currentInput = (e.target as HTMLInputElement).value;
const suggest = commandCompletion(currentInput);
setCurrentCmd(suggest);
if (typed.current) typed.current.innerHTML = currentInput;
if (completion.current) completion.current.innerHTML = suggest.substring(currentInput.length);
};
const tabComplete = (e: React.KeyboardEvent<HTMLInputElement>) => {
if (e.key === "Tab" && currentCmd !== "") {
e.preventDefault();
(e.target as HTMLInputElement).value = currentCmd;
if(typed.current) typed.current.innerHTML = currentCmd;
if(completion.current) completion.current.innerHTML = "";
}
return false;
};
return <div className={styles.wrapper}>
<input className={styles.in} type={"text"} onChange={replinOnChange} onKeyDown={tabComplete} spellCheck={"false"} />
<span className={styles.completionWrapper}><span ref={typed} className={styles.typed}></span><span ref={completion} className={styles.completion}></span></span>
</div>;
};
export default REPLInput;