diff --git a/app/components/chat.tsx b/app/components/chat.tsx index 5669cc9a314..51fe74fe7be 100644 --- a/app/components/chat.tsx +++ b/app/components/chat.tsx @@ -960,9 +960,24 @@ function _Chat() { (scrollRef.current.scrollTop + scrollRef.current.clientHeight), ) <= 1 : false; + const isAttachWithTop = useMemo(() => { + const lastMessage = scrollRef.current?.lastElementChild as HTMLElement; + // if scrolllRef is not ready or no message, return false + if (!scrollRef?.current || !lastMessage) return false; + const topDistance = + lastMessage!.getBoundingClientRect().top - + scrollRef.current.getBoundingClientRect().top; + // leave some space for user question + return topDistance < 100; + }, [scrollRef?.current?.scrollHeight]); + + const isTyping = userInput !== ""; + + // if user is typing, should auto scroll to bottom + // if user is not typing, should auto scroll to bottom only if already at bottom const { setAutoScroll, scrollDomToBottom } = useScrollToBottom( scrollRef, - isScrolledToBottom, + (isScrolledToBottom || isAttachWithTop) && !isTyping, ); const [hitBottom, setHitBottom] = useState(true); const isMobileScreen = useMobileScreen();