botframework-webchat-component/src/hooks/useScrollToEnd.ts

React component of botframework-webchat

import { useCallback } from 'react';

import useWebChatUIContext from './internal/useWebChatUIContext';

export default function useScrollToEnd(): () => void {
  const { scrollToEndCallbacksRef } = useWebChatUIContext();

  return useCallback(
    () => scrollToEndCallbacksRef.current.forEach(callback => callback({ behavior: 'smooth' })),
    [scrollToEndCallbacksRef]
  );
}