LibreChat/client/src/components/Chat/Input/Textarea.tsx

import TextareaAutosize from 'react-textarea-autosize';
import { supportsFiles } from 'librechat-data-provider';
import { cn, removeFocusOutlines } from '~/utils';
import { useTextarea } from '~/hooks';

export default function Textarea({ value, onChange, setText, submitMessage, endpoint }) {
  const {
    inputRef,
    handlePaste,
    handleKeyUp,
    handleKeyDown,
    handleCompositionStart,
    handleCompositionEnd,
    onHeightChange,
    placeholder,
  } = useTextarea({ setText, submitMessage });

  return (
    <TextareaAutosize
      ref={inputRef}
      autoFocus
      value={value}
      onChange={onChange}
      onPaste={handlePaste}
      onKeyUp={handleKeyUp}
      onKeyDown={handleKeyDown}
      onCompositionStart={handleCompositionStart}
      onCompositionEnd={handleCompositionEnd}
      onHeightChange={onHeightChange}
      id="prompt-textarea"
      tabIndex={0}
      data-testid="text-input"
      style={{ height: 44, overflowY: 'hidden' }}
      rows={1}
      placeholder={placeholder}
      className={cn(
        supportsFiles[endpoint] ? ' pl-10 md:pl-[55px]' : 'pl-3 md:pl-4',
        'm-0 w-full resize-none border-0 bg-transparent py-[10px] pr-10 placeholder-black/50 focus:ring-0 focus-visible:ring-0 dark:bg-transparent dark:placeholder-white/50 md:py-3.5 md:pr-12 ',
        removeFocusOutlines,
        'max-h-52',
      )}
    />
  );
}