fix: after selecting and dragging text, the table still scrolls even after releasing the mouse.

[QdabuliuQ]

来源 ant-design issue：ant-design/ant-design#53924

bug复现：选择文本，鼠标按住文本拖拽到表格外边，松开鼠标，鼠标上下移动会触发表格滚动。demo 稳定复现
https://github.com/user-attachments/assets/9bec2f1c-866f-40d0-be9e-b6e19b6c0be8

查看源码后定位 rc-table / rc-virtual-list；在 rc-virtual-list 的 useScrollDrag hook 当中。

Summary by CodeRabbit

• 优化
  • 改进滚动拖拽行为，提升在窗口失焦、页面隐藏、拖拽结束等多种场景下的稳定性和流畅度。

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Name	Status	Preview	Comments	Updated (UTC)
virtual-list	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 16, 2025 1:17pm

[coderabbitai]

Walkthrough

本次更改在 useScrollDrag 钩子中引入了 clearDragState 辅助函数，用于集中处理拖拽状态的重置。新增了多个事件监听器以在更多场景下清理拖拽状态，包括原生拖拽开始、窗口失焦和文档隐藏等，提升了滚动拖拽行为的健壮性。

Changes

文件/路径	变更摘要
src/hooks/useScrollDrag.ts	新增 clearDragState 函数，重构 onMouseUp，添加多种事件监听与清理逻辑，完善拖拽状态管理。

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant Document
    participant useScrollDrag

    User->>Document: mousedown
    Document->>useScrollDrag: 开始拖拽
    User->>Document: mouseup/dragend/dragstart/blur/visibilitychange
    Document->>useScrollDrag: 触发 clearDragState
    useScrollDrag->>useScrollDrag: 重置拖拽状态

Loading

Possibly related PRs

• fix: right click should not trigger drag #307: 该 PR 修改了 useScrollDrag 钩子的拖拽开始条件，虽然关注点不同，但同样涉及拖拽处理逻辑。
• feat: mouse down to scroll #293: 该 PR 引入了 useScrollDrag 钩子，本次更改直接在其基础上增强了内部拖拽状态清理逻辑。

Poem

小兔挥爪理拖拽，
状态清理不放开。
失焦隐藏皆照顾，
拖拽体验更畅快。
代码整洁又健壮，
滚动世界任我来！
🐇✨

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src/hooks/useScrollDrag.ts

Oops! Something went wrong! :(

ESLint: 8.57.1

Error: Cannot read config file: /.eslintrc.js
Error: Cannot find module '@umijs/fabric/dist/eslint'
Require stack:

• /.eslintrc.js
• /node_modules/.pnpm/@eslint[email protected]/node_modules/@eslint/eslintrc/dist/eslintrc.cjs
• /node_modules/.pnpm/[email protected]/node_modules/eslint/lib/cli-engine/cli-engine.js
• /node_modules/.pnpm/[email protected]/node_modules/eslint/lib/eslint/eslint.js
• /node_modules/.pnpm/[email protected]/node_modules/eslint/lib/eslint/index.js
• /node_modules/.pnpm/[email protected]/node_modules/eslint/lib/cli.js
• /node_modules/.pnpm/[email protected]/node_modules/eslint/bin/eslint.js
  at Module._resolveFilename (node:internal/modules/cjs/loader:1369:15)
  at defaultResolveImpl (node:internal/modules/cjs/loader:1025:19)
  at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1030:22)
  at Module._load (node:internal/modules/cjs/loader:1179:37)
  at TracingChannel.traceSync (node:diagnostics_channel:322:14)
  at wrapModuleLoad (node:internal/modules/cjs/loader:235:24)
  at Module.require (node:internal/modules/cjs/loader:1449:12)
  at require (node:internal/modules/helpers:135:16)
  at Object. (/.eslintrc.js:1:14)
  at Module._compile (node:internal/modules/cjs/loader:1692:14)

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 5769845 and 0ce568c.

📒 Files selected for processing (1)

• src/hooks/useScrollDrag.ts (3 hunks)

🔇 Additional comments (7)

src/hooks/useScrollDrag.ts (7)

41-45: 很好的重构 - 集中管理拖拽状态清理逻辑

新增的 clearDragState 辅助函数有效地集中了状态重置逻辑，避免了代码重复。这样的重构提高了代码的可维护性和一致性。

---

63-63: 正确使用了新的辅助函数

将原来的内联逻辑替换为对 clearDragState() 的调用，保持了代码的简洁性和一致性。

---

67-69: 有效处理原生拖拽开始的边界情况

当用户开始原生拖拽操作时清理状态是一个很好的改进，这能防止在文本选择和拖拽场景下出现状态混乱。

---

72-74: 妥善处理窗口失焦场景

当窗口失去焦点时清理拖拽状态是必要的，因为在这种情况下后续的 mouseup 事件可能无法被正确捕获。

---

77-81: 正确处理页面可见性变化

检查 document.hidden 并在页面不可见时清理状态是一个周到的设计，能够处理用户切换标签页或最小化窗口等场景。

---

107-110: 全面的事件监听器覆盖

新增的事件监听器很好地覆盖了各种边界情况：

• dragstart 和 dragend 处理原生拖拽操作
• blur 处理窗口失焦
• visibilitychange 处理页面可见性变化

这些监听器的添加直接解决了 PR 目标中描述的问题。

---

116-119: 正确的事件监听器清理

所有新增的事件监听器都在 effect 清理函数中被正确移除，避免了内存泄漏和潜在的事件处理冲突。

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