fix: Continue timing when mouse moves away

src/NoticeList.tsx

@@ -46,7 +46,8 @@ const NoticeList: FC<NoticeListProps> = (props) => {
   const { classNames: ctxCls } = useContext(NotificationContext);
 
   const dictRef = useRef<Record<string, HTMLDivElement>>({});
-  const [latestNotice, setLatestNotice] = useState<HTMLDivElement>(null);
+  const mousePositionRef = useRef<{ x: number; y: number } | null>(null);
+  const [latestNotice, setLatestNotice] = useState<HTMLDivElement | null>(null);
   const [hoverKeys, setHoverKeys] = useState<string[]>([]);
 
   const keys = configList.map((config) => ({
@@ -60,15 +61,66 @@ const NoticeList: FC<NoticeListProps> = (props) => {
 
   const placementMotion = typeof motion === 'function' ? motion(placement) : motion;
 
+  // Track mouse position globally when in stack mode
+  useEffect(() => {
+    if (!stack) return;
+
+    const handleMouseMove = (e: MouseEvent) => {
+      mousePositionRef.current = { x: e.clientX, y: e.clientY };
+    };
+
+    document.addEventListener('mousemove', handleMouseMove, { passive: true });
+    return () => document.removeEventListener('mousemove', handleMouseMove);
+  }, [stack]);
+
   // Clean hover key
   useEffect(() => {
     if (stack && hoverKeys.length > 1) {
-      setHoverKeys((prev) =>
-        prev.filter((key) => keys.some(({ key: dataKey }) => key === dataKey)),
-      );
+      // Only update if there's a change to avoid unnecessary re-renders
+      setHoverKeys((prev) => {
+        const filtered = prev.filter((key) => keys.some(({ key: dataKey }) => key === dataKey));
+        return filtered.length === prev.length ? prev : filtered;
+      });
     }
   }, [hoverKeys, keys, stack]);
 
+  // Check mouse position when keys change (notification list updates)
+  useEffect(() => {
+    if (!stack || !mousePositionRef.current) return;
+
+    // Use requestAnimationFrame to wait for DOM updates
+    const rafId = requestAnimationFrame(() => {
+      const mousePos = mousePositionRef.current;
+      if (!mousePos) return;
+
+      const newHoverKeys: string[] = [];
+      keys.forEach(({ key: strKey }) => {
+        const element = dictRef.current[strKey];
+        if (element) {
+          const rect = element.getBoundingClientRect();
+          if (
+            mousePos.x >= rect.left &&
+            mousePos.x <= rect.right &&
+            mousePos.y >= rect.top &&
+            mousePos.y <= rect.bottom
+          ) {
+            newHoverKeys.push(strKey);
+          }
+        }
+      });
+
+      // Only update if there's a change to avoid unnecessary re-renders
+      setHoverKeys((prev) => {
+        if (prev.length === newHoverKeys.length && prev.every((k, i) => k === newHoverKeys[i])) {
+          return prev;
+        }
+        return newHoverKeys;
+      });
+    });
+
+    return () => cancelAnimationFrame(rafId);
+  }, [keys, stack]);
+
   // Force update latest notice
   useEffect(() => {
     if (stack && dictRef.current[keys[keys.length - 1]?.key]) {

tests/stack.test.tsx

@@ -1,5 +1,5 @@
 import { useNotification } from '../src';
-import { fireEvent, render } from '@testing-library/react';
+import { act, fireEvent, render } from '@testing-library/react';
 import React from 'react';
 
 require('../assets/index.less');
@@ -87,3 +87,160 @@ describe('stack', () => {
     expect(document.querySelector('.rc-notification-stack-expanded')).toBeFalsy();
   });
 });
+
+describe('hover state after closing notice in stack', () => {
+  beforeEach(() => {
+    vi.useFakeTimers();
+  });
+
+  afterEach(() => {
+    vi.useRealTimers();
+  });
+
+  it('should clear hover state and resume timers when closing a hovered notice', () => {
+    const onClose = vi.fn();
+
+    const Demo = () => {
+      const [api, holder] = useNotification({
+        stack: { threshold: 3 },
+      });
+      return (
+        <>
+          <button
+            type="button"
+            onClick={() => {
+              api.open({
+                content: <div className="context-content">Test</div>,
+                duration: 1,
+                closable: true,
+                onClose,
+              });
+            }}
+          />
+          {holder}
+        </>
+      );
+    };
+
+    const { container } = render(<Demo />);
+
+    for (let i = 0; i < 4; i++) {
+      act(() => {
+        fireEvent.click(container.querySelector('button'));
+      });
+    }
+    expect(document.querySelectorAll('.rc-notification-notice')).toHaveLength(4);
+
+    act(() => {
+      document.dispatchEvent(new MouseEvent('mousemove', { clientX: 100, clientY: 100 }));
+    });
+
+    // Hover the topmost notification wrapper
+    const wrappers = document.querySelectorAll('.rc-notification-notice-wrapper');
+    act(() => {
+      fireEvent.mouseEnter(wrappers[wrappers.length - 1]);
+    });
+
+    // Timers should be paused while hovering
+    act(() => {
+      vi.advanceTimersByTime(5000);
+    });
+    expect(document.querySelectorAll('.rc-notification-notice')).toHaveLength(4);
+
+    // Close the hovered notification via close button
+    act(() => {
+      const closeButtons = document.querySelectorAll('.rc-notification-notice-close');
+      fireEvent.click(closeButtons[closeButtons.length - 1]);
+    });
+    expect(document.querySelectorAll('.rc-notification-notice')).toHaveLength(3);
+
+    // Flush requestAnimationFrame so hover state recalculation takes effect
+    act(() => {
+      vi.advanceTimersByTime(100);
+    });
+
+    // Remaining notices should auto-close since hover state was properly cleared
+    act(() => {
+      vi.advanceTimersByTime(2000);
+    });
+    expect(document.querySelectorAll('.rc-notification-notice')).toHaveLength(0);
+    expect(onClose).toHaveBeenCalledTimes(4);
+  });
+
+  it('should keep hover state when mouse is still over a notice after close', () => {
+    const mockRect = {
+      top: 0,
+      left: 0,
+      bottom: 200,
+      right: 300,
+      width: 300,
+      height: 200,
+      x: 0,
+      y: 0,
+      toJSON: () => {},
+    };
+    const spy = vi
+      .spyOn(Element.prototype, 'getBoundingClientRect')
+      .mockReturnValue(mockRect as DOMRect);
+
+    const Demo = () => {
+      const [api, holder] = useNotification({
+        stack: { threshold: 3 },
+      });
+      return (
+        <>
+          <button
+            type="button"
+            onClick={() => {
+              api.open({
+                content: <div className="context-content">Test</div>,
+                duration: 1,
+                closable: true,
+              });
+            }}
+          />
+          {holder}
+        </>
+      );
+    };
+
+    const { container } = render(<Demo />);
+
+    for (let i = 0; i < 4; i++) {
+      act(() => {
+        fireEvent.click(container.querySelector('button'));
+      });
+    }
+    expect(document.querySelectorAll('.rc-notification-notice')).toHaveLength(4);
+
+    // Mouse position inside the mocked bounding rect
+    act(() => {
+      document.dispatchEvent(new MouseEvent('mousemove', { clientX: 100, clientY: 100 }));
+    });
+
+    const wrappers = document.querySelectorAll('.rc-notification-notice-wrapper');
+    act(() => {
+      fireEvent.mouseEnter(wrappers[wrappers.length - 1]);
+    });
+
+    // Close the hovered notification
+    act(() => {
+      const closeButtons = document.querySelectorAll('.rc-notification-notice-close');
+      fireEvent.click(closeButtons[closeButtons.length - 1]);
+    });
+    expect(document.querySelectorAll('.rc-notification-notice')).toHaveLength(3);
+
+    // Flush RAF - mouse is within bounding rect so hover state should persist
+    act(() => {
+      vi.advanceTimersByTime(100);
+    });
+
+    // Timers should still be paused because mouse is detected over a notice
+    act(() => {
+      vi.advanceTimersByTime(5000);
+    });
+    expect(document.querySelectorAll('.rc-notification-notice')).toHaveLength(3);
+
+    spy.mockRestore();
+  });
+});