msgba-web/js-src/components/form-select-files.tsx

import * as React from 'react';

export interface FormSelectFilesProps {
    refInputRom: React.RefObject<HTMLInputElement>;
    refInputSaveState: React.RefObject<HTMLInputElement>;
    onStartEmulation: React.MouseEventHandler<HTMLInputElement>;
}

export default function FormSelectFiles(props: FormSelectFilesProps) {
    const inputRom = props.refInputRom ? props.refInputRom : React.useRef(null);
    const inputSaveState = props.refInputSaveState ? props.refInputSaveState : React.useRef(null);
    const onStartEmulation = props.onStartEmulation;

    return (
        <form>
	    <label htmlFor="rom">
		Rom file 
		<input type="file" ref={inputRom} name="rom"/>
	    </label>
	    <label htmlFor="savestate">
		Savestate (A ss file from mgba...)
		<input type="file" ref={inputSaveState} name="savestate"/>
	    </label>
	    <input type="button" value="Start emulation" onClick={onStartEmulation}/>
	</form>
    );
}