bitburner-src/src/Infiltration/ui/KeyHandler.tsx

import React, { useEffect } from 'react';

interface IProps {
    onKeyDown: (event: React.KeyboardEvent<HTMLElement>) => void;
}

export function KeyHandler(props: IProps): React.ReactElement {
    let elem: any;
    useEffect(() => elem.focus());

    // invisible autofocused element that eats all the keypress for the minigames.
    return (<div tabIndex={1} ref={c => elem = c} onKeyDown={props.onKeyDown} />)
}