fix(popup-menu): suppress pointermove reopen after explicit close

packages/react/src/internal/popup-menu/components/submenu-trigger/submenu-trigger.tsx

@@ -883,9 +883,18 @@ export const PopupMenuSubmenuTrigger = React.forwardRef<
     (event: React.PointerEvent<HTMLDivElement>) => {
       // Prevent focus from leaving the input
       event.preventDefault()
+
+      if (open) {
+        suppressAutoOpenRef.current = true
+        logAimTrace('pointerdown-suppress-auto-open', {
+          clientX: event.clientX,
+          clientY: event.clientY,
+        })
+      }
+
       onPointerDown?.(event)
     },
-    [onPointerDown],
+    [open, logAimTrace, onPointerDown],
   )
 
   // Custom pointer move handler for submenu triggers
@@ -928,6 +937,14 @@ export const PopupMenuSubmenuTrigger = React.forwardRef<
         return
       }
 
+      if (suppressAutoOpenRef.current) {
+        logAimTrace('pointermove-open-suppressed-after-explicit-close', {
+          clientX: event.clientX,
+          clientY: event.clientY,
+        })
+        return
+      }
+
       clearLeaveMonitor()
       clearCloseTimer()
 
@@ -957,6 +974,7 @@ export const PopupMenuSubmenuTrigger = React.forwardRef<
       item.storeId,
       openOnHighlight,
       open,
+      suppressAutoOpenRef,
       clearLeaveMonitor,
       clearCloseTimer,
       delay.pointer,
@@ -1004,6 +1022,14 @@ export const PopupMenuSubmenuTrigger = React.forwardRef<
       // Skip submenu opening if openOnHighlight is disabled
       if (!openOnHighlight) return
 
+      if (suppressAutoOpenRef.current) {
+        logAimTrace('pointerenter-open-suppressed-after-explicit-close', {
+          clientX: event.clientX,
+          clientY: event.clientY,
+        })
+        return
+      }
+
       // Clear any existing aim guard and schedule open with delay
       clearLeaveMonitor()
       clearAimGuard()
@@ -1029,6 +1055,7 @@ export const PopupMenuSubmenuTrigger = React.forwardRef<
       item.storeId,
       parentStore,
       openOnHighlight,
+      suppressAutoOpenRef,
       clearLeaveMonitor,
       clearAimGuard,
       clearOpenTimer,

packages/react/src/internal/popup-menu/popup-menu.test.tsx

@@ -1448,6 +1448,46 @@ describe('PopupMenu', () => {
         scenario.cleanup()
       }
     })
+
+    it('does not reopen submenu on pointermove after explicit click close until pointer leaves', async () => {
+      const user = userEvent.setup()
+      render(<NestedMenuForDataAttrs />)
+
+      await user.click(screen.getByTestId('trigger'))
+
+      await waitFor(() => {
+        expect(screen.getByTestId('popup-root')).toBeInTheDocument()
+      })
+
+      const submenuTrigger = screen.getByTestId('submenu-trigger-1')
+
+      await user.hover(submenuTrigger)
+
+      await waitFor(() => {
+        expect(screen.getByTestId('popup-submenu-1')).toBeInTheDocument()
+      })
+
+      await user.click(submenuTrigger)
+
+      await waitFor(() => {
+        expect(screen.queryByTestId('popup-submenu-1')).not.toBeInTheDocument()
+      })
+
+      fireEvent.pointerMove(submenuTrigger, { clientX: 182, clientY: 92 })
+      fireEvent.pointerMove(submenuTrigger, { clientX: 186, clientY: 94 })
+
+      await sleep(120)
+
+      expect(screen.queryByTestId('popup-submenu-1')).not.toBeInTheDocument()
+
+      const rootItem = screen.getByTestId('root-item-1')
+      await user.hover(rootItem)
+      await user.hover(submenuTrigger)
+
+      await waitFor(() => {
+        expect(screen.getByTestId('popup-submenu-1')).toBeInTheDocument()
+      })
+    })
   })
 
   describe('search and filtering', () => {