import TextField from '@material-ui/core/TextField'; import { TimedVideoPlayer } from '../pages/present'; export default function TimecodeInput(props: { value: number; update: (newValue: number) => void; player: TimedVideoPlayer; label: string; }) { return e.preventDefault()} onKeyDown={e => { var mod = 1; if (e.shiftKey) mod = 10; if (e.key == 'ArrowUp') props.update(props.value + mod); if (e.key == 'ArrowDown') props.update(props.value - mod); }} />; }