Merge pull request langflow-ai#8 from ZenHunter9457/user_input_focus

Add Ref and event listener to keep focus on User input

src/chatWidget/chatWindow/index.tsx

@@ -72,6 +72,7 @@ export default function ChatWindow({
  const ref = useRef<HTMLDivElement>(null);
  const lastMessage = useRef<HTMLDivElement>(null);
  const [windowPosition, setWindowPosition] = useState({ left: "0", top: "0" });
+ const inputRef = useRef<HTMLInputElement>(null); /* User input Ref */
  useEffect(() => {
  if (triggerRef)
  setWindowPosition(
@@ -83,6 +84,17 @@ export default function ChatWindow({
  )
  );
  }, [triggerRef, width, height, position]);
+
+ /* Initial listener for loss of focus that refocuses User input after a small delay */
+
+ const handleBlur = () => {
+ setTimeout(() => {
+ inputRef.current?.focus();
+ }, 50);
+ }; 
+ const inputElem = inputRef.current;
+ inputElem?.addEventListener('blur', handleBlur);
+
  const [sendingMessage, setSendingMessage] = useState(false);
 
  function handleClick() {
@@ -155,6 +167,26 @@ export default function ChatWindow({
  lastMessage.current.scrollIntoView({ behavior: "smooth" });
  }, [messages]);
 
+/* Refocus the User input whenever a new response is returned from the LLM */
+
+ useEffect(() => {
+ const handleBlur = () => {
+ // after a slight delay
+ setTimeout(() => {
+ inputRef.current?.focus();
+ }, 100);
+ };
+ const inputElem = inputRef.current;
+ inputElem?.addEventListener('blur', handleBlur);
+ inputRef.current?.focus();
+
+ // Clean up the listener when the component is unmounted
+
+ return () => {
+ inputElem?.removeEventListener('blur', handleBlur);
+ };
+ }, [messages]);
+
  return (
  <div
  className={
@@ -210,6 +242,7 @@ export default function ChatWindow({
  disabled={sendingMessage}
  placeholder={sendingMessage ? (placeholder_sending || "Thinking...") : (placeholder || "Type your message...")}
  style={input_style}
+ ref={inputRef}
  className="cl-input-element"
  />
  <button