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

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

export default function Textarea({
  value,
  disabled,
  onChange,
  setText,
  submitMessage,
  endpoint,
  endpointType,
}) {
  const { data: fileConfig = defaultFileConfig } = useGetFileConfig({
    select: (data) => mergeFileConfig(data),
  });
  const {
    textAreaRef,
    handlePaste,
    handleKeyUp,
    handleKeyDown,
    handleCompositionStart,
    handleCompositionEnd,
  } = useTextarea({ setText, submitMessage, disabled });
  const endpointFileConfig = fileConfig.endpoints[endpoint ?? ''];
  return (
    <TextareaAutosize
      ref={textAreaRef}
      autoFocus
      value={value}
      disabled={!!disabled}
      onChange={onChange}
      onPaste={handlePaste}
      onKeyUp={handleKeyUp}
      onKeyDown={handleKeyDown}
      onCompositionStart={handleCompositionStart}
      onCompositionEnd={handleCompositionEnd}
      id="prompt-textarea"
      tabIndex={0}
      data-testid="text-input"
      style={{ height: 44, overflowY: 'auto' }}
      rows={1}
      className={cn(
        supportsFiles[endpointType ?? endpoint ?? ''] && !endpointFileConfig?.disabled
          ? ' 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-[65vh] md:max-h-[85vh]',
      )}
    />
  );
}