fix: MenuFlyout TypeError on findRenderObject in sub-item hover handler

[Copilot]

MenuFlyout throws a TypeError at runtime because findRenderObject is referenced as a method tearoff instead of being called. Bug introduced in 838f520.

// before — gets Function reference, fails cast to RenderBox
parent.widget.root!.context.findRenderObject as RenderBox;

// after — calls method, null-asserts the result
parent.widget.root!.context.findRenderObject()! as RenderBox;

• Fix: Added missing ()! on findRenderObject call in menu_flyout.dart line 156, matching the identical pattern on line 154
• Test: Added widget test that opens a MenuFlyoutSubItem, triggers sub-menu via hover, then moves mouse away to exercise the fixed code path
• Changelog: Added entry under [next]

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Original prompt

---

This section details on the original issue you should resolve

<issue_title>🐛 Menu Flyout throws _TypeError Exception</issue_title>
<issue_description>MenuFlyout throws an exception because it can't cast the findRenderObject method as a RenderBox.

The error is at line 156 of /lib/src/controls/flyouts/menu_flyout.dart

Has:

final parentBox = parent.widget.root!.context.findRenderObject as RenderBox;

Should be

final parentBox = parent.widget.root!.context.findRenderObject()! as RenderBox;

Bug was introduced with 838f520

Thanks for a great project!</issue_description>

<agent_instructions>Add tests and update the changelog at the end</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes 🐛 Menu Flyout throws _TypeError Exception #1305

---

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[bdlukaa]

/gemini review

[gemini-code-assist]

Code Review

This pull request correctly fixes a TypeError in MenuFlyout that occurred when a sub-item's hover handler was triggered. The issue was caused by referencing findRenderObject as a method tearoff instead of calling it. The fix adds the missing function call (), which resolves the runtime error. Additionally, a new widget test has been added to specifically cover this scenario, ensuring the bug is fixed and preventing future regressions. The changelog has also been updated accordingly. The changes are correct and well-implemented.