fix: close submenus on root Escape

[nrps9909]

Summary

• close popup submenus when Escape is pressed while the root menu itself has focus
• preserve inline-menu behavior and the existing item-focused parent navigation
• cover the click-triggered submenu regression reported in Ant Design

Fixes ant-design/ant-design#43267

Verification

• npm test -- --runInBand — 132 tests and 20 snapshots passed
• npm run tsc
• npm run lint — 0 errors (11 existing warnings)
• Ant Design 6.6.2 integration reproduction: the parent Dropdown closes, the submenu loses its open state, and its popup enters the leave motion

AI assistance disclosure: Codex was used to trace the Ant Design/rc-menu event path, build the regression test, implement the fix, and run verification. The reported behavior and test results were verified locally.

Summary by CodeRabbit

• Bug 修复

  • 在非内联菜单模式下，当焦点位于菜单容器并按下 Esc 时，现可关闭所有已展开的子菜单。
  • 菜单关闭状态会同步更新，确保展开项被正确清空。

• 测试

  • 增加了通过键盘 Esc 关闭子菜单的行为验证。

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[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 2ad9b3cb-6d36-4f5a-8c5c-a1e27c4d66be

📥 Commits

Reviewing files that changed from the base of the PR and between 5e2a3e2 and 3baedee.

📒 Files selected for processing (3)

• src/Menu.tsx
• src/hooks/useAccessibility.ts
• tests/SubMenu.spec.tsx

Included review availability: Your plan provides up to 4 included reviews per hour; 3 remain after this review.

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Walkthrough

新增无障碍关闭回调。非 inline 模式下，根菜单接收 Escape 时清空所有打开状态并转发键盘事件。新增测试验证子菜单关闭及 onOpenChange([])。

Changes

无障碍关闭流程

Layer / File(s)	Summary
关闭回调与钩子 wiring src/Menu.tsx, src/hooks/useAccessibility.ts	Menu 在存在打开菜单项时调用 triggerOpenKeys(EMPTY_LIST, true)，并将关闭回调传入 useAccessibility。
Escape 关闭处理与测试 src/hooks/useAccessibility.ts, tests/SubMenu.spec.tsx	非 inline 模式下，菜单容器直接接收 Escape 时关闭菜单、转发原始事件，并通过测试验证所有子菜单关闭及 onOpenChange([])。

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to 3baed

Pressing Escape on a focused root menu now closes its open popup submenus while preserving existing inline-menu and item-focused behavior. No actionable merge-blocking risk remains after normal checks and review.

Suggested reviewers: zombiej, afc163

Poem

小兔挥爪按下 Escape 键
菜单层层合上不再显
空数组轻轻落入状态中
子菜单跟随根菜单归零
键盘事件继续向前跑

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 3 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	标题“fix: close submenus on root Escape”准确概括了根菜单按下 Escape 时关闭子菜单的主要变更。
Linked Issues check	✅ Passed	PR 实现了问题 #43267 的核心要求：当根菜单获得焦点并触发 Escape 时，通过 triggerAccessibilityClose 清空打开状态，从而关闭弹出子菜单。测试覆盖了鼠标打开子菜单后在根菜单触发 Escape 的场景。
Out of Scope Changes check	✅ Passed	变更仅涉及 Menu.tsx、useAccessibility.ts 和对应测试。新增关闭回调、处理根菜单 Escape，以及验证子菜单关闭，均直接服务于问题 #43267。未发现无关代码变更。

• Fix all pre-merge checks with AI

✨ Finishing Touches 💡 1

🛠️ Fix failing CI checks 💡

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests

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