v1.10.0 - CHANGELOG update

v1.10.0 - performance enhacements
v1.9.5 - release notes button
2026-03-08 09:43:03 +08:00 · 2026-03-07 19:41:51 +08:00 · 2026-03-07 19:37:38 +08:00 · 2026-03-07 19:19:13 +08:00 · 2026-03-06 16:14:45 +08:00 · 2026-03-06 15:56:08 +08:00
24 changed files with 1428 additions and 452 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,36 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

+## [1.10.0] - 2026-03-07
+
+### Fixed
+- 🔧 优化：优化算法，提升插件性能，更好兼容移动设备的访问
+- 🔧 优化：来自Github一位用户的共同探讨，带来此次性能的飞跃，同时他也提供了另外一种应用层的优化方案，请参考: [discussion #16](https://github.com/nelson820125/jordium-gantt-vue3/discussions/16)
+- 🔧 Optimized: Algorithm optimizations for improved plugin performance and better compatibility with mobile device access
+- 🔧 Optimized: Collaborative discussions with a Github user led to this performance leap, and they also provided another application-level optimization方案, please refer to: [discussion #16](https://github.com/nelson820125/jordium-gantt-vue3/discussions/16)
+
+## [1.9.4] - 2026-03-06
+
+### Fixed
+- 🔧 修复：日期视图下，SplitterBar拖拽以及TaskList收起/展开后，计算导致2月份周期丢失问题
+- 🔧 修复：任务视图切换至资源视图后今日定位偏移问题
+- 🔧 修复：任务视图切换至资源视图后最大和最小日期范围计算问题
+- 🔧 修复：资源视图下，小时/日/周视图切换后，最大值和最小值范围问题
+- 🔧 Fixed: In date view, after dragging the SplitterBar and collapsing/expanding the TaskList, the calculation caused the February cycle to be lost
+- 🔧 Fixed: After switching from task view to resource view, the today marker offset issue
+- 🔧 Fixed: After switching from task view to resource view, the max and min date range calculation issue
+- 🔧 Fixed: In resource view, after switching between hourly/daily/weekly views, the max and min date range issue
+
+## [1.9.3] - 2026-03-05
+
+### Added
+- 🎉 新增：GanttChart 新增 enableTaskDrawerAutoClose 属性，设置为 false 时禁用 TaskDrawer 的自动关闭行为
+- 🎉 Added: GanttChart new prop enableTaskDrawerAutoClose — set to false to disable the automatic closing behavior of the TaskDrawer
+
+### Fixed
+- 🔧 修复：周视图下拖拽 TaskBar 左右移动后任务宽度（持续时间）自动缩短的问题
+- 🔧 Fixed: TaskBar width (duration) shrinking after dragging left and right in weekly view
+
 ## [1.9.2] - 2026-02-26

 ### Added
--- a/README-EN.md
+++ b/README-EN.md
@@ -162,7 +162,7 @@ const milestones = ref([
  {
    id: 101,
    name: 'Project Approval',
-    date: '2025-01-01',
+    startDate: '2025-01-01',
    type: 'milestone',
  },
 ])
@@ -226,6 +226,7 @@ npm run dev
 | `showTaskbarTab` ![v1.9.0](https://img.shields.io/badge/v1.9.0-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean`                                                                                 | `true` | Whether to display resource tab on TaskBar (shows resource allocation label on TaskBar in resource view) |
 | `enableTaskListCollapsible` ![v1.9.2](https://img.shields.io/badge/v1.9.2-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean`                                                                                 | `true` | Whether to allow collapsing/expanding the TaskList panel. When `false`: forcibly hides TaskList, SplitterBar and collapse button; Timeline takes full width |
 | `taskListVisible` ![v1.9.2](https://img.shields.io/badge/v1.9.2-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean`                                                                                 | `true` | Controls TaskList visibility (reactive). Only effective when `enableTaskListCollapsible=true` |
+| `enableTaskDrawerAutoClose` ![v1.9.3](https://img.shields.io/badge/v1.9.3-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean`                                                                                 | `true` | Whether to allow TaskDrawer to auto-close (closes on outside click or Esc key). Set to `false` to disable auto-close — the drawer can only be closed via its internal close button |

 #### TaskListColumn Component Props

@@ -3637,7 +3638,13 @@ View the complete [Contributors list](./CONTRIBUTORS.md)。

 ---

-## 📄 Open Source License
+## <EFBFBD> Troubleshooting
+
+For common issues and solutions, please refer to [Troubleshooting-EN.md](./Troubleshooting-EN.md).
+
+---
+
+## <20>📄 Open Source License

 [MIT License](./LICENSE) © 2025 JORDIUM.COM

--- a/README.md
+++ b/README.md
@@ -224,6 +224,7 @@ npm run dev
 | `showTaskbarTab` ![v1.9.0](https://img.shields.io/badge/v1.9.0-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean`                                                                                 | `true` | 是否显示TaskBar上的资源Tab标签（资源视图下TaskBar的资源分配标签） |
 | `enableTaskListCollapsible` ![v1.9.2](https://img.shields.io/badge/v1.9.2-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean`                                                                                 | `true` | 是否允许折叠/展开 TaskList 面板。`false` 时强制隐藏 TaskList、SplitterBar 及折叠按钮，Timeline 独占全宽 |
 | `taskListVisible` ![v1.9.2](https://img.shields.io/badge/v1.9.2-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean`                                                                                 | `true` | 控制 TaskList 的显隐状态（响应式）。仅在 `enableTaskListCollapsible=true` 时有效 |
+| `enableTaskDrawerAutoClose` ![v1.9.3](https://img.shields.io/badge/v1.9.3-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean`                                                                                 | `true` | 是否允许 TaskDrawer 自动关闭（外总点击或按 Esc 时自动关闭）。设为 `false` 时禁用自动关闭，仅可通过内部按钮手动关闭 |

 #### TaskListColumn 属性

@@ -3630,7 +3631,13 @@ TaskList 组件经过深度重构，采用模块化设计，提升了代码可

 ---

-## 📄 开源协议
+## <EFBFBD> Troubleshooting
+
+常见问题与解决方案请参阅 [Troubleshooting.md](./Troubleshooting.md)。
+
+---
+
+## <20>📄 开源协议

 [MIT License](./LICENSE) © 2025 JORDIUM.COM

--- a/Troubleshooting-EN.md
+++ b/Troubleshooting-EN.md
@@ -0,0 +1,69 @@
+# Troubleshooting
+
+Common issues and solutions for `jordium-gantt-vue3`.
+
+---
+
+## Table of Contents
+
+- [High Memory Usage / Browser Freeze with Large Datasets](#issue-13-high-memory-usage--browser-freeze-with-large-datasets)
+
+---
+
+## Issue #13: High Memory Usage / Browser Freeze with Large Datasets
+
+**Labels**: `performance`, `answer`  
+**Status**: ✅ Resolved  
+**Issue**: [#13 Memory leak and high CPU use](https://github.com/nelson820125/jordium-gantt-vue3/issues/13) → converted to Discussion [#16](https://github.com/nelson820125/jordium-gantt-vue3/discussions/16)
+
+### Symptoms
+
+When loading ~80+ tasks, the page becomes severely sluggish, memory grows continuously, and the browser may crash.
+
+### Root Cause
+
+The problem is **not in the component itself**, but in how the caller binds data:
+
+1. **Using `reactive` to deeply wrap the task array** — Vue creates deep watchers for every object in the array. With a large dataset, the number of watchers explodes and memory can exceed 10 GB.
+2. **Incorrect date format** — The API returns ISO datetime strings (e.g. `"2026-03-07T08:34:00.230"`), but the component expects plain date strings (`"2026-03-07"`).
+
+### Solution (credit: [@eldrift](https://github.com/eldrift))
+
+#### 1. Use `shallowRef` instead of `reactive` to store the task list
+
+```ts
+// ❌ Wrong — deep reactivity, performance disaster
+const data = reactive({ tasks: [] as Task[] })
+
+// ✅ Correct — Vue only watches the array reference, not each object deeply
+const tasks = shallowRef<Task[]>([])
+```
+
+#### 2. Truncate ISO datetime strings to plain date format
+
+```ts
+tasks.value = res.data.map((t: Task) => ({
+  ...t,
+  startDate: t.startDate?.substring(0, 10) ?? t.startDate,
+  endDate:   t.endDate?.substring(0, 10)   ?? t.endDate,
+}))
+```
+
+#### 3. Use the correct Task type
+
+Ensure the data passed to the component conforms to the `Task` interface to avoid hidden computation overhead from type mismatches.
+
+### References
+
+- Full discussion & report: [Discussion #16](https://github.com/nelson820125/jordium-gantt-vue3/discussions/16)
+- Original issue: [#13 Memory leak and high CPU use](https://github.com/nelson820125/jordium-gantt-vue3/issues/13)
+
+---
+
+## Feedback
+
+If you encounter an issue not listed here, feel free to submit one:
+
+- [GitHub Issues](https://github.com/nelson820125/jordium-gantt-vue3/issues)
+- [Gitee Issues](https://gitee.com/jordium/jordium-gantt-vue3/issues)
+- 📧 ning.li@jordium.com
--- a/Troubleshooting.md
+++ b/Troubleshooting.md
@@ -0,0 +1,69 @@
+# Troubleshooting
+
+常见问题与解决方案 / Common issues and solutions.
+
+---
+
+## 目录 / Table of Contents
+
+- [内存占用过高 / 浏览器卡死（大数据量场景）](#issue-13-内存占用过高--浏览器卡死大数据量场景)
+
+---
+
+## Issue #13: 内存占用过高 / 浏览器卡死（大数据量场景）
+
+**标签 / Labels**: `performance`, `answer`  
+**状态 / Status**: ✅ 已解决 / Resolved  
+**Issue 地址**: [#13 Memory leak and high CPU use](https://github.com/nelson820125/jordium-gantt-vue3/issues/13) → 已转为 Discussion [#16](https://github.com/nelson820125/jordium-gantt-vue3/discussions/16)
+
+### 现象
+
+在加载约 80+ 条任务数据时，页面出现严重卡顿、内存持续增长甚至浏览器崩溃。
+
+### 根本原因
+
+问题**不在组件本身**，而在于调用方的数据绑定方式：
+
+1. **使用 `reactive` 深层包裹任务数组** — Vue 会为数组内每一个对象建立深层侦听器，数据量较大时侦听器数量爆炸，导致内存超过 10 GB。
+2. **日期格式错误** — API 返回 ISO 日期时间字符串（如 `"2026-03-07T08:34:00.230"`），但组件要求纯日期格式（`"2026-03-07"`）。
+
+### 解决方案（来自 [@eldrift](https://github.com/eldrift)）
+
+#### 1. 使用 `shallowRef` 替代 `reactive` 存储任务列表
+
+```ts
+// ❌ 错误 — 深层响应性，性能灾难
+const data = reactive({ tasks: [] as Task[] })
+
+// ✅ 正确 — Vue 只监听数组引用，不深入每个对象
+const tasks = shallowRef<Task[]>([])
+```
+
+#### 2. 截断 ISO 日期时间为纯日期格式
+
+```ts
+tasks.value = res.data.map((t: Task) => ({
+  ...t,
+  startDate: t.startDate?.substring(0, 10) ?? t.startDate,
+  endDate:   t.endDate?.substring(0, 10)   ?? t.endDate,
+}))
+```
+
+#### 3. 使用正确的 Task 类型
+
+确保传入组件的数据符合 `Task` 接口定义，避免类型不匹配导致的隐性计算开销。
+
+### 参考
+
+- 完整讨论与报告：[Discussion #16](https://github.com/nelson820125/jordium-gantt-vue3/discussions/16)
+- 原始 Issue：[#13 Memory leak and high CPU use](https://github.com/nelson820125/jordium-gantt-vue3/issues/13)
+
+---
+
+## 反馈 / Feedback
+
+如果遇到未收录的问题，欢迎提交 Issue：
+
+- [GitHub Issues](https://github.com/nelson820125/jordium-gantt-vue3/issues)
+- [Gitee Issues](https://gitee.com/jordium/jordium-gantt-vue3/issues)
+- 📧 ning.li@jordium.com
--- a/demo/App.vue
+++ b/demo/App.vue
@@ -1312,7 +1312,7 @@ const handleCustomMenuAction = (action: string, task: Task) => {
        </svg>
        Jordium Gantt Vue3 Demo
        <span class="version-badge" style="cursor: pointer" @click="showVersionDrawer = true">{{
-          packageInfo.version
+          packageInfo.version + ' ' + demoMessages.releaseNotes
        }}</span>
      </div>
      <!-- <div class="title-center">
@@ -2377,6 +2377,7 @@ const handleCustomMenuAction = (action: string, task: Task) => {
        :complete-task-background-color="completeTaskBackgroundColor"
        :ongoing-task-background-color="ongoingTaskBackgroundColor"
        :use-default-drawer="useDefaultDrawer"
+        :enable-task-drawer-auto-close="false"
        @milestone-saved="handleMilestoneSaved"
        @milestone-deleted="handleMilestoneDeleted"
        @milestone-icon-changed="handleMilestoneIconChanged"
--- a/demo/data-small.json
+++ b/demo/data-small.json
@@ -0,0 +1,37 @@
+{
+  "tasks": [
+    {
+      "id": 1001,
+      "name": "上午会议",
+      "assignee": "测试用户",
+      "startDate": "2026-03-02 09:00",
+      "endDate": "2026-03-10 10:30",
+      "progress": 50,
+      "estimatedHours": 1.5,
+      "actualHours": 0.75,
+      "type": "task"
+    },
+    {
+      "id": 1002,
+      "name": "午后开发",
+      "assignee": "开发者",
+      "startDate": "2026-03-02 09:00",
+      "endDate": "2026-03-06 16:15",
+      "progress": 30,
+      "estimatedHours": 2.25,
+      "actualHours": 1.33,
+      "type": "task"
+    },
+    {
+      "id": 1003,
+      "name": "测试任务",
+      "assignee": "测试员",
+      "startDate": "2026-03-02 09:00",
+      "endDate": "2026-03-08 17:45",
+      "progress": 0,
+      "estimatedHours": 1.25,
+      "actualHours": 0,
+      "type": "task"
+    }
+  ]
+}
--- a/demo/locales/en-US.json
+++ b/demo/locales/en-US.json
@@ -148,5 +148,6 @@
      "label": "Enable TaskRow Drag and Drop",
      "hint": "Allow dragging TaskRow to adjust task hierarchy and order"
    }
-  }
+  },
+  "releaseNotes": "Click to view release notes"
 }
--- a/demo/locales/zh-CN.json
+++ b/demo/locales/zh-CN.json
@@ -148,5 +148,6 @@
      "label": "启用TaskRow拖拽移动",
      "hint": "允许通过拖拽TaskRow来调整任务的层级和顺序"
    }
-  }
+  },
+  "releaseNotes": "点击查看更新日志"
 }
--- a/demo/public/robots.txt
+++ b/demo/public/robots.txt
@@ -2,7 +2,7 @@ User-agent: *
 Allow: /

 # Sitemap location
-Sitemap: https://jordium.gitee.io/jordium-gantt-vue3/sitemap.xml
+Sitemap: https://nelson820125.github.io/jordium-gantt-vue3/sitemap.xml

 # Crawl-delay for polite crawling
 Crawl-delay: 1
--- a/demo/public/sitemap.xml
+++ b/demo/public/sitemap.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
  <url>
-    <loc>https://jordium.gitee.io/jordium-gantt-vue3/</loc>
-    <lastmod>2025-12-14</lastmod>
-    <changefreq>weekly</changefreq>
-    <priority>1.6.1</priority>
+    <loc>https://nelson820125.github.io/jordium-gantt-vue3/</loc>
+    <lastmod>2026-02-26</lastmod>
+    <changefreq>monthly</changefreq>
+    <priority>1.9.2</priority>
  </url>
 </urlset>
--- a/demo/version-history.json
+++ b/demo/version-history.json
@@ -576,5 +576,47 @@
      "🔧 Fixed: GanttToolbar showViewMode:false had no effect due to missing v-if guard",
      "<span style=\"font-weight: bold; color: #f00;\">Special thanks to Andrés Jorge from Berlin, Germany for their use and feedback</span>"
    ]
+  },
+  {
+    "version": "1.9.3",
+    "date": "2026-03-05",
+    "notes": [
+      "🎉 新增：GanttChart 新增 enableTaskDrawerAutoClose 属性，设置为 false 时禁用 TaskDrawer 的自动关闭行为",
+      "🔧 修复：周视图下拖拽 TaskBar 左右移动后任务宽度（持续时间）自动缩短的问题",
+      "<span style=\"font-weight: bold; color: #f00;\">特别感谢来自xuhang513@gitee的使用与反馈</span>",
+      "🎉 Added: GanttChart new prop enableTaskDrawerAutoClose — set to false to disable the automatic closing behavior of the TaskDrawer",
+      "🔧 Fixed: TaskBar width (duration) shrinking after dragging left and right in weekly view",
+      "<span style=\"font-weight: bold; color: #f00;\">Special thanks to xuhang513@gitee for their use and feedback</span>"
+    ]
+  },
+  {
+    "version": "1.9.4",
+    "date": "2026-03-06",
+    "notes": [
+      "🔧 修复：日期视图下，SplitterBar拖拽以及TaskList收起/展开后，计算导致2月份周期丢失问题",
+      "🔧 修复：任务视图切换至资源视图后今日定位偏移问题",
+      "🔧 修复：任务视图切换至资源视图后最大和最小日期范围计算问题",
+      "🔧 修复：资源视图下，小时/日/周视图切换后，最大值和最小值范围问题",
+      "🔧 修复：包弱点处理，jspdf增加了依赖包dompurify，用于HTML的XSS消毒",
+      "<span style=\"font-weight: bold; color: #f00;\">特别感谢来自jwuxin@gitee的使用与反馈</span>",
+      "🔧 Fixed: In date view, after dragging the SplitterBar and collapsing/expanding the TaskList, the calculation caused the February cycle to be lost",
+      "🔧 Fixed: After switching from task view to resource view, the today marker offset issue",
+      "🔧 Fixed: After switching from task view to resource view, the max and min date range calculation issue",
+      "🔧 Fixed: In resource view, after switching between hourly/daily/weekly views, the max and min date range issue",
+      "🔧 Fixed: Vulnerabilities fixed, jspdf added dependency dompurify for HTML XSS sanitization",
+      "<span style=\"font-weight: bold; color: #f00;\">Special thanks to jwuxin@gitee for their use and feedback</span>"
+    ]
+  },
+  {
+    "version": "1.10.0",
+    "date": "2026-03-07",
+    "notes": [
+      "🔧 优化：优化算法，提升插件性能，更好兼容移动设备的访问",
+      "🔧 优化：来自Github一位用户的共同探讨，是带来此次性能飞跃的关键，同时他也提供了另外一种应用层的优化方案，请参考: <a href=\"https://github.com/nelson820125/jordium-gantt-vue3/discussions/16\">discussion #16</a>",
+      "<span style=\"font-weight: bold; color: #f00;\">特别感谢来自eldrift@github的使用与反馈</span>",
+      "🔧 Optimized: Algorithm optimizations for improved plugin performance and better compatibility with mobile device access",
+      "🔧 Optimized: Collaborative discussions with a Github user led to this performance leap, and they also provided another application-level optimization方案, please refer to: <a href=\"https://github.com/nelson820125/jordium-gantt-vue3/discussions/16\">discussion #16</a>",
+      "<span style=\"font-weight: bold; color: #f00;\">Special thanks to eldritf@github for their use and feedback</span>"
+    ]
  }
 ]
--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "jordium-gantt-vue3",
-  "version": "1.9.2",
+  "version": "1.10.0",
  "type": "module",
  "main": "npm-package/dist/jordium-gantt-vue3.cjs.js",
  "module": "npm-package/dist/jordium-gantt-vue3.es.js",
@@ -75,13 +75,14 @@
  },
  "dependencies": {
    "date-fns": "^4.1.0",
+    "dompurify": "^3.3.2",
    "html2canvas": "^1.4.1",
    "jspdf": "^4.0.0",
    "vue": "^3.5.13"
  },
  "devDependencies": {
-    "@typescript-eslint/eslint-plugin": "^6.21.0",
-    "@typescript-eslint/parser": "^6.21.0",
+    "@typescript-eslint/eslint-plugin": "^8.56.1",
+    "@typescript-eslint/parser": "^8.56.1",
    "@vitejs/plugin-vue": "^5.2.3",
    "@vitest/coverage-v8": "^4.0.16",
    "@vitest/ui": "^4.0.16",
--- a/src/components/GanttChart.vue
+++ b/src/components/GanttChart.vue
@@ -77,6 +77,7 @@ const props = withDefaults(defineProps<Props>(), {
  theme: undefined, // 不设置默认值，允许自动检测系统主题
  enableTaskListCollapsible: true,
  taskListVisible: true,
+  enableTaskDrawerAutoClose: true,
 })

 const emit = defineEmits([
@@ -559,6 +560,12 @@ interface Props {
   * 可通过 prop 传入或通过 defineExpose 暴露的方法控制
   */
  taskListVisible?: boolean
+  /**
+   * 是否允许点击遮罩层关闭 TaskDrawer，默认为 true（保持原有行为）
+   * 设置为 false 可防止 TaskDrawer 在失去焦点（点击遮罩区域）时自动关闭
+   * 仅在 useDefaultDrawer=true 时有效
+   */
+  enableTaskDrawerAutoClose?: boolean
 }

 // TaskList的固定总长度（所有列的最小宽度之和 + 边框等额外空间）
@@ -806,6 +813,10 @@ const dragging = ref(false)
 // v1.9.5 P2-4优化 - 提供Split Bar拖拽状态给子组件
 provide('isSplitBarDragging', dragging)

+// TaskList 切换动画进行中的标志（提供给 Timeline，避免 toggle 期间误触发 resize 重算）
+const isTaskListToggling = ref(false)
+provide('isTaskListToggling', isTaskListToggling)
+
 function onMouseDown(e: MouseEvent) {
  // 检查事件目标是否是task-list-toggle按钮或其子元素
  const target = e.target as HTMLElement
@@ -984,6 +995,9 @@ const toggleTaskList = () => {
  // 如果正在动画中，忽略点击
  if (isAnimating.value) return

+  // 标记 toggle 进行中，阻止 Timeline 内 containerResizeObserver 误触发日期范围重算
+  isTaskListToggling.value = true
+
  // 触发撞击动画
  isAnimating.value = true

@@ -1005,7 +1019,9 @@ const toggleTaskList = () => {
    isAnimating.value = false
    animationClass.value = ''

-    // 手动切换TaskList后，通知Timeline重新计算半圆
+    // toggle 结束：先清除标志（Timeline watch 会响应并只更新 sticky/bubble，跳过日期范围重算）
+    // 再通知 Timeline 重新计算半圆和 TaskBar 位置
+    isTaskListToggling.value = false
    nextTick(() => {
      window.dispatchEvent(
        new CustomEvent('timeline-container-resized', {
@@ -1018,11 +1034,14 @@ const toggleTaskList = () => {

 // 监听Timeline的TaskList切换事件
 const handleToggleTaskList = (event: CustomEvent) => {
+  // 标记 toggle 进行中，阻止 Timeline 内 containerResizeObserver 误触发日期范围重算
+  isTaskListToggling.value = true
  isTaskListVisible.value = event.detail

  // TaskList切换会改变Timeline容器宽度，需要通知Timeline重新计算半圆
-  // 派发事件通知Timeline容器宽度发生了变化
+  // toggle 结束：清除标志后再派发事件，Timeline watch 响应时只更新 sticky/bubble
  nextTick(() => {
+    isTaskListToggling.value = false
    window.dispatchEvent(
      new CustomEvent('timeline-container-resized', {
        detail: { source: 'task-list-toggle' },
@@ -1062,11 +1081,16 @@ onMounted(() => {

  // 监听 timeline 容器宽度变化
  nextTick(() => {
-    // 监听右侧面板（timeline 的可视容器）的宽度
-    const rightPanel = document.querySelector('.gantt-panel-right')
-    if (rightPanel) {
+    // 监听 gantt-body（整体布局容器）宽度变化作为日期范围规划的基准
+    // 使用 .gantt-body 而非 .gantt-panel-right，原因：
+    //   1. 拖拽 SplitterBar 和 TaskList toggle 只改变左右面板的内部分割，.gantt-body 总宽度不变
+    //      → 不会误触发日期范围重算
+    //   2. 窗口 resize / 全屏切换才改变 .gantt-body 宽度 → 正确触发重算
+    //   3. 作为「最大可能宽度」兜底：TaskList 隐藏时 Timeline 最大可展开至此宽度
+    const ganttBody = document.querySelector('.gantt-body')
+    if (ganttBody) {
      // 初始化宽度
-      timelineContainerWidth.value = rightPanel.clientWidth
+      timelineContainerWidth.value = ganttBody.clientWidth

      // 使用 ResizeObserver 监听宽度变化
      resizeObserver = new ResizeObserver(entries => {
@@ -1074,7 +1098,7 @@ onMounted(() => {
          timelineContainerWidth.value = entry.contentRect.width
        }
      })
-      resizeObserver.observe(rightPanel)
+      resizeObserver.observe(ganttBody)
    }
  })
 })
@@ -1601,31 +1625,30 @@ const tasksForTimeline = computed(() => {
    }

    // 递归更新任务树中所有父任务的时间范围（从叶子节点开始向上）
+    // 优化：叶子任务直接返回原引用，避免无效 { ...task } 对象创建
+    // （后续 smartFlattenTasks 会在 spread 时附加 level，不会污染原对象）
    const updateParentDateRanges = (tasks: Task[]): Task[] => {
      return tasks.map(task => {
-        let updatedTask = { ...task }
-
-        // 先递归更新子任务
-        if (task.children && task.children.length > 0) {
-          updatedTask.children = updateParentDateRanges(task.children)
+        // 叶子任务：无需创建新对象，直接返回原引用
+        if (!task.children || task.children.length === 0) {
+          return task
        }

-        // 基于任务类型判断是否为父任务
-        const isParent =
-          task.type === 'story' || (updatedTask.children && updatedTask.children.length > 0)
-        updatedTask.isParent = isParent
+        // 父任务：先递归处理子任务
+        const updatedChildren = updateParentDateRanges(task.children)
+        const isParent = task.type === 'story' || true

-        // 如果是父任务且有子任务，重新计算时间范围
-        if (isParent && updatedTask.children && updatedTask.children.length > 0) {
-          const { startDate, endDate } = calculateParentDateRange(updatedTask)
-          updatedTask = {
-            ...updatedTask,
-            startDate,
-            endDate,
-          }
+        // 重新计算父任务时间范围
+        const taskWithChildren = { ...task, children: updatedChildren }
+        const { startDate, endDate } = calculateParentDateRange(taskWithChildren)
+
+        return {
+          ...task,
+          children: updatedChildren,
+          isParent,
+          startDate,
+          endDate,
        }
-
-        return updatedTask
      })
    }

@@ -1714,8 +1737,18 @@ const timelineDateRange = computed(() => {
  }

  let allTasks: Task[] = []
-  if (props.tasks) allTasks = allTasks.concat(flattenTasks(props.tasks))
-  if (props.milestones) allTasks = allTasks.concat(props.milestones)
+
+  if (currentViewMode.value === 'resource' && props.resources) {
+    // 资源视图：从 resource.tasks 提取日期，避免传入基于任务视图的错误范围
+    for (const resource of (props.resources as Resource[])) {
+      if (resource.tasks && Array.isArray(resource.tasks)) {
+        allTasks = allTasks.concat(flattenTasks(resource.tasks as Task[]))
+      }
+    }
+  } else {
+    if (props.tasks) allTasks = allTasks.concat(flattenTasks(props.tasks))
+    if (props.milestones) allTasks = allTasks.concat(props.milestones)
+  }

  // 过滤出有日期的任务
  const startDates = allTasks
@@ -3530,6 +3563,7 @@ defineExpose({
      :delay-task-background-color="props.delayTaskBackgroundColor"
      :complete-task-background-color="props.completeTaskBackgroundColor"
      :ongoing-task-background-color="props.ongoingTaskBackgroundColor"
+      :enable-close-on-overlay-click="props.enableTaskDrawerAutoClose"
      @submit="handleTaskDrawerSubmit"
      @close="taskDrawerVisible = false"
      @start-timer="handleStartTimer"
--- a/src/components/GanttLinks.vue
+++ b/src/components/GanttLinks.vue
@@ -33,6 +33,8 @@ interface Props {
  verticalLines?: VerticalLine[]
  showVerticalLines?: boolean
  // 主题模式通过inject获取，不再需要props
+  // 滚动优化：垂直滚动时跳过 canvas 重绘，等滚动停止后一次性重绘
+  isScrolling?: boolean
 }

 const props = withDefaults(defineProps<Props>(), {
@@ -40,6 +42,7 @@ const props = withDefaults(defineProps<Props>(), {
  showVerticalLines: true,
  offsetLeft: 0,
  offsetTop: 0,
+  isScrolling: false,
 })

 // 通过inject获取主题
@@ -54,6 +57,8 @@ const canvasManager = new CanvasContextManager()
 // requestAnimationFrame 防抖控制
 let rafId: number | null = null
 let pendingRedraw = false
+// 滚动期间跳过重绘，滚动停止后补一次
+let pendingRedrawOnScrollStop = false

 // 当前主题（用于分隔线颜色）
 const isDarkTheme = computed(() => injectedTheme.value === 'dark')
@@ -406,8 +411,15 @@ const drawArrowOptimized = (
 /**
 * 使用 requestAnimationFrame 优化的重绘调度器
 * 合并多个连续的重绘请求为单次绘制
+ * 垂直滚动期间跳过重绘，等滚动停止后补绘一次（避免每帧重绘 canvas）
 */
 const scheduleRedraw = () => {
+  // 滚动期间：延迟至滚动停止后再重绘
+  if (props.isScrolling) {
+    pendingRedrawOnScrollStop = true
+    return
+  }
+
  if (pendingRedraw) {
    // 已有待处理的重绘请求，跳过
    return
@@ -428,6 +440,17 @@ const scheduleRedraw = () => {
  })
 }

+// 监听滚动结束：滚动期间有待重绘时，在停止后立即补绘一次
+watch(
+  () => props.isScrolling,
+  (scrolling) => {
+    if (!scrolling && pendingRedrawOnScrollStop) {
+      pendingRedrawOnScrollStop = false
+      scheduleRedraw()
+    }
+  },
+)
+
 // 监听相关状态变化，自动重绘 Canvas
 watch(
  [
--- a/src/components/TaskBar.vue
+++ b/src/components/TaskBar.vue
@@ -1569,8 +1569,14 @@ const handleMouseMove = (e: MouseEvent) => {
      } else {
        // 其他情况：使用原有的简单计算
        const newStartDate = addDaysToLocalDate(props.startDate, newLeft / props.dayWidth)
-        const duration = dragStartWidth.value / props.dayWidth
-        const newEndDate = addDaysToLocalDate(newStartDate, duration - 1)
+
+        // 从原始任务日期计算持续天数，避免从像素宽度反推（dragStartWidth / dayWidth）
+        // 导致的精度损失（WEEK视图 dayWidth=60/7 非整数，parseInt截断后往返计算误差会缩短任务）
+        const originalStartDate = createLocalDate(props.task.startDate) || props.startDate
+        const originalEndDate = createLocalDate(props.task.endDate) || props.startDate
+        const durationMs = originalEndDate.getTime() - originalStartDate.getTime()
+        const duration = Math.round(durationMs / (1000 * 60 * 60 * 24))
+        const newEndDate = addDaysToLocalDate(newStartDate, duration)

        // 只更新临时数据，不触发事件
        tempTaskData.value = {
@@ -3688,6 +3694,7 @@ const handleAnchorDragEnd = (anchorEvent: { taskId: number; type: 'predecessor'
  position: absolute;
  border-radius: 4px;
  user-select: none;
+  touch-action: none; /* JS 完全接管拖拽手势，不影响父层水平滚动 */
  /* 阴影通过JS动态设置，使用TaskBar的颜色 */
  transition:
    box-shadow 0.2s,
--- a/src/components/TaskDrawer.vue
+++ b/src/components/TaskDrawer.vue
@@ -27,6 +27,8 @@ interface Props {
  delayTaskBackgroundColor?: string
  completeTaskBackgroundColor?: string
  ongoingTaskBackgroundColor?: string
+  /** 是否允许点击遮罩层关闭抽屉，默认为 true（保持原有行为）。设置为 false 可防止失去焦点时自动关闭 */
+  enableCloseOnOverlayClick?: boolean
 }

 const props = withDefaults(defineProps<Props>(), {
@@ -45,6 +47,7 @@ const props = withDefaults(defineProps<Props>(), {
  delayTaskBackgroundColor: '#f56c6c',
  completeTaskBackgroundColor: '#67c23a',
  ongoingTaskBackgroundColor: '#409eff',
+  enableCloseOnOverlayClick: true,
 })

 const emit = defineEmits<{
@@ -484,7 +487,9 @@ const handleClose = () => {

 // 点击遮罩层关闭
 const handleOverlayClick = () => {
-  handleClose()
+  if (props.enableCloseOnOverlayClick) {
+    handleClose()
+  }
 }

 // 提交表单
--- a/src/components/TaskList/composables/taskList/useTaskListEventHandlers.ts
+++ b/src/components/TaskList/composables/taskList/useTaskListEventHandlers.ts
@@ -142,6 +142,9 @@ export function useTaskListEventHandlers(options: TaskListEventHandlersOptions)

  // ==================== 滚动同步事件 ====================

+  // 滚动同步标志位：防止 Timeline → TaskList 写入后反向再次派发（2跳链路优化）
+  let _isSyncingScrollFromTimeline = false
+
  const handleTaskListScroll = (event: Event) => {
    const target = event.target as HTMLElement
    if (!target) return
@@ -149,6 +152,9 @@ export function useTaskListEventHandlers(options: TaskListEventHandlersOptions)
    const scrollTop = target.scrollTop
    taskListScrollTop.value = scrollTop

+    // 由 Timeline → TaskList 同步写入触发时，不再反向派发，避免 2 跳循环
+    if (_isSyncingScrollFromTimeline) return
+
    // 滚动时关闭所有右键菜单
    window.dispatchEvent(new CustomEvent('close-all-taskbar-menus'))

@@ -166,7 +172,11 @@ export function useTaskListEventHandlers(options: TaskListEventHandlersOptions)
    taskListScrollTop.value = scrollTop

    if (taskListBodyElement && Math.abs(taskListBodyElement.scrollTop - scrollTop) > 1) {
+      // 设置标志位：当前是由 Timeline 触发的同步写入
+      // 防止 handleTaskListScroll 被触发后反向再次派发事件（2跳链路）
+      _isSyncingScrollFromTimeline = true
      taskListBodyElement.scrollTop = scrollTop
+      Promise.resolve().then(() => { _isSyncingScrollFromTimeline = false })
    }
  }

--- a/src/components/TaskList/composables/taskList/useTaskListLayout.ts
+++ b/src/components/TaskList/composables/taskList/useTaskListLayout.ts
@@ -65,41 +65,31 @@ export function useTaskListLayout(tasks: Ref<Task[]>) {
  const flattenedTasks = computed(() => getFlattenedVisibleTasks(tasks.value))

  /**
-   * v1.9.0 计算每个任务/资源的累计高度位置（支持动态行高）
+   * 资源视图专用：累计高度数组（动态行高，需要数组+二分查找）
+   * 任务视图固定行高，直接用公式计算，不构造此数组，避免 O(n) 分配
   */
  const cumulativeHeights = computed<number[]>(() => {
-    if (viewMode.value === 'resource') {
-      // 资源视图：使用每个资源的实际高度
-      const resources = dataSource.value as Resource[]
-      const heights: number[] = [0] // 第一个位置是0
-      let cumulative = 0
+    if (viewMode.value !== 'resource') return []

-      resources.forEach(resource => {
-        const layout = resourceTaskLayouts.value.get(resource.id)
-        const height = layout?.totalHeight || ROW_HEIGHT
-        cumulative += height
-        heights.push(cumulative)
-      })
-
-      return heights
-    } else {
-      // 任务视图：使用固定行高
-      const heights: number[] = [0]
-      for (let i = 1; i <= flattenedTasks.value.length; i++) {
-        heights.push(i * ROW_HEIGHT)
-      }
-      return heights
-    }
+    const resources = dataSource.value as Resource[]
+    const heights: number[] = [0]
+    let cumulative = 0
+    resources.forEach(resource => {
+      const layout = resourceTaskLayouts.value.get(resource.id)
+      const height = layout?.totalHeight || ROW_HEIGHT
+      cumulative += height
+      heights.push(cumulative)
+    })
+    return heights
  })

  /**
-   * 根据滚动位置查找对应的任务/资源索引（二分查找）
+   * 资源视图专用：根据滚动位置查找资源索引（二分查找）
   */
  const findIndexByScrollTop = (scrollTop: number): number => {
    const heights = cumulativeHeights.value
    let left = 0
    let right = heights.length - 1
-
    while (left < right) {
      const mid = Math.floor((left + right) / 2)
      if (heights[mid] <= scrollTop) {
@@ -108,38 +98,37 @@ export function useTaskListLayout(tasks: Ref<Task[]>) {
        right = mid
      }
    }
-
    return Math.max(0, left - 1)
  }

  /**
-   * 计算可视区域任务范围（支持动态行高）
+   * 计算可视区域任务范围
+   * - 任务视图：固定行高，O(1) 公式直接计算（不依赖 cumulativeHeights）
+   * - 资源视图：动态行高，使用累计高度数组 + 二分查找
   */
  const visibleTaskRange = computed<VisibleTaskRange>(() => {
    const scrollTop = taskListScrollTop.value
    const containerHeight = taskListBodyHeight.value || 600
-    const heights = cumulativeHeights.value

-    if (heights.length <= 1) {
-      return { startIndex: 0, endIndex: 0 }
-    }
+    if (viewMode.value === 'resource') {
+      const heights = cumulativeHeights.value
+      if (heights.length <= 1) return { startIndex: 0, endIndex: 0 }

-    // 找到起始索引（考虑缓冲区）
-    let startIndex = findIndexByScrollTop(scrollTop)
-    startIndex = Math.max(0, startIndex - VERTICAL_BUFFER)
-
-    // 找到结束索引（考虑缓冲区）
-    const scrollBottom = scrollTop + containerHeight
-    let endIndex = findIndexByScrollTop(scrollBottom)
-    endIndex = Math.min(heights.length - 1, endIndex + VERTICAL_BUFFER + 1)
-
-    const total = viewMode.value === 'resource'
-      ? (dataSource.value as Resource[]).length
-      : flattenedTasks.value.length
-
-    return {
-      startIndex: Math.min(startIndex, total),
-      endIndex: Math.min(endIndex, total),
+      const total = (dataSource.value as Resource[]).length
+      let startIndex = Math.max(0, findIndexByScrollTop(scrollTop) - VERTICAL_BUFFER)
+      const scrollBottom = scrollTop + containerHeight
+      let endIndex = Math.min(heights.length - 1, findIndexByScrollTop(scrollBottom) + VERTICAL_BUFFER + 1)
+      return {
+        startIndex: Math.min(startIndex, total),
+        endIndex: Math.min(endIndex, total),
+      }
+    } else {
+      // 任务视图：固定行高 ROW_HEIGHT，O(1) 直接计算，不访问 cumulativeHeights
+      const total = flattenedTasks.value.length
+      if (total === 0) return { startIndex: 0, endIndex: 0 }
+      const startIndex = Math.max(0, Math.floor(scrollTop / ROW_HEIGHT) - VERTICAL_BUFFER)
+      const endIndex = Math.min(total, Math.ceil((scrollTop + containerHeight) / ROW_HEIGHT) + VERTICAL_BUFFER)
+      return { startIndex, endIndex }
    }
  })

@@ -149,7 +138,6 @@ export function useTaskListLayout(tasks: Ref<Task[]>) {
  const visibleTasks = computed<TaskWithLevelAndIndex[]>(() => {
    const { startIndex, endIndex } = visibleTaskRange.value
    const slicedTasks = flattenedTasks.value.slice(startIndex, endIndex)
-    // 添加 rowIndex（基于在扁平化列表中的实际索引）
    return slicedTasks.map((item, index) => ({
      ...item,
      rowIndex: startIndex + index,
@@ -157,22 +145,31 @@ export function useTaskListLayout(tasks: Ref<Task[]>) {
  })

  /**
-   * Spacer 高度用于撑起滚动区域（支持动态行高）
+   * Spacer 高度撑起滚动区域
+   * 任务视图：O(1) 乘法；资源视图：从累计高度数组读取
   */
  const totalContentHeight = computed(() => {
-    const heights = cumulativeHeights.value
-    return heights.length > 0 ? heights[heights.length - 1] : 0
+    if (viewMode.value === 'resource') {
+      const heights = cumulativeHeights.value
+      return heights.length > 0 ? heights[heights.length - 1] : 0
+    }
+    return flattenedTasks.value.length * ROW_HEIGHT
  })

  const startSpacerHeight = computed(() => {
-    const startIdx = visibleTaskRange.value.startIndex
-    return cumulativeHeights.value[startIdx] || 0
+    if (viewMode.value === 'resource') {
+      return cumulativeHeights.value[visibleTaskRange.value.startIndex] || 0
+    }
+    return visibleTaskRange.value.startIndex * ROW_HEIGHT
  })

  const endSpacerHeight = computed(() => {
-    const endIdx = visibleTaskRange.value.endIndex
-    const endHeight = cumulativeHeights.value[endIdx] || 0
-    return Math.max(0, totalContentHeight.value - endHeight)
+    if (viewMode.value === 'resource') {
+      const endIdx = visibleTaskRange.value.endIndex
+      const endHeight = cumulativeHeights.value[endIdx] || 0
+      return Math.max(0, totalContentHeight.value - endHeight)
+    }
+    return Math.max(0, (flattenedTasks.value.length - visibleTaskRange.value.endIndex) * ROW_HEIGHT)
  })

  return {
--- a/src/components/TaskList/composables/taskRow/useTaskRowEventHandlers.ts
+++ b/src/components/TaskList/composables/taskRow/useTaskRowEventHandlers.ts
@@ -1,5 +1,6 @@
 import { onMounted, onUnmounted, type Ref } from 'vue'
 import type { Task } from '../../../../models/classes/Task'
+import { registerDragOver, unregisterDragOver } from '../../../../utils/dragOverRegistry'

 /**
 * TaskRow 事件处理和拖拽交互
@@ -98,27 +99,25 @@ export function useTaskRowEventHandlers(
    }
  }

-  // 处理全局拖拽悬停事件
-  const handleTaskRowDragOver = (event: CustomEvent) => {
+  // 处理全局拖拽悬停事件（通过 dragOverRegistry 委托，不再直接监听 window）
+  // 优化：从每行独立注册 window 监听器改为全局单一监听器 + Map 直接查找 O(1)
+  const handleTaskRowDragOver = (mouseEvent: MouseEvent) => {
    if (!enableDrag.value || !taskRowRef.value || !dragOver) return
-
-    const { taskId, event: mouseEvent } = event.detail
-    if (taskId === task.value.id) {
-      dragOver(task.value, taskRowRef.value, mouseEvent)
-    }
+    dragOver(task.value, taskRowRef.value, mouseEvent)
  }

  // 生命周期钩子 - 注册事件监听器
  onMounted(() => {
    window.addEventListener('splitter-drag-start', handleSplitterDragStart)
    window.addEventListener('splitter-drag-end', handleSplitterDragEnd)
-    window.addEventListener('task-row-drag-over', handleTaskRowDragOver as EventListener)
+    // 使用 dragOverRegistry 委托注册，避免每个 TaskRow 各自占用一个 window 监听器
+    registerDragOver(task.value.id, handleTaskRowDragOver)
  })

  onUnmounted(() => {
    window.removeEventListener('splitter-drag-start', handleSplitterDragStart)
    window.removeEventListener('splitter-drag-end', handleSplitterDragEnd)
-    window.removeEventListener('task-row-drag-over', handleTaskRowDragOver as EventListener)
+    unregisterDragOver(task.value.id)
  })

  return {
--- a/src/components/Timeline.vue
+++ b/src/components/Timeline.vue
@@ -168,6 +168,9 @@ provide('positionCache', positionCache)
 // v1.9.5 P2-4优化 - 注入Split Bar拖拽状态
 const isSplitBarDragging = inject<Ref<boolean>>('isSplitBarDragging', ref(false))

+// 注入 TaskList toggle 状态（toggle 期间阻止 containerResizeObserver 误触发日期范围重算）
+const isTaskListToggling = inject<Ref<boolean>>('isTaskListToggling', ref(false))
+
 // v1.9.5 注入showConflicts配置
 const showConflicts = inject<ComputedRef<boolean>>('gantt-show-conflicts', computed(() => true))

@@ -175,6 +178,11 @@ const showConflicts = inject<ComputedRef<boolean>>('gantt-show-conflicts', compu
 const ROW_HEIGHT = 51 // 每行高度51px (50px + 1px border)
 const VERTICAL_BUFFER = 5 // 纵向缓冲区行数
 const timelineBodyScrollTop = ref(0) // 纵向滚动位置
+// 滚动同步标志位：防止 TaskList ↔ Timeline 垂直滚动形成 2 跳循环派发
+let _isSyncingScrollFromTaskList = false
+// GanttLinks 性能优化：滚动期间暂停 canvas 重绘，滚动停止后补绘一次
+const isTimelineScrolling = ref(false)
+let _scrollIdleTimer: ReturnType<typeof setTimeout> | null = null
 const timelineBodyHeight = ref(0) // 容器高度状态管理

 // v1.9.9 优化：注入GanttChart提供的资源布局，避免重复计算
@@ -292,7 +300,10 @@ const currentTimeScale = ref<TimelineScale>(TimelineScale.DAY)

 // 响应外部props变化，动态更新timelineConfig
 watch([timelineStartDate, timelineEndDate], ([newStart, newEnd]) => {
-  // 所有视图都正常响应props变化
+  // 资源视图下不响应 props 变化：
+  //   GanttChart 的 timelineDateRange 计算可能传入基于任务视图的日期范围（已 computed 修复，但保留守卫作为二重保险）
+  //   资源视图的日期范围由 updateTimeScale / debouncedUpdateTimelineRange 内部管理
+  if (viewMode.value === 'resource') return
  if (props.startDate || props.endDate) {
    if (!isUpdatingTimelineConfig) {
      timelineConfig.value.startDate = newStart
@@ -496,9 +507,13 @@ const getDayTimelineRange = () => {

  const { minDate, maxDate } = taskRange

-  // 开始日期：任务最小开始日期-30天
-  let startDate = new Date(minDate)
-  startDate.setDate(startDate.getDate() - 30)
+  // 开始日期：取任务最小日期所在月的前一个月月初（第1天）
+  // 采用月运算而非减30天，原因：
+  //   减30天后若落在月末（如1月31日），normalize 到月初会多出一整个月（1月→1月1日），
+  //   而语义上只需在任务月份前保留一个完整月作为 buffer。
+  // 直接用 new Date(year, month-1, 1) 使 startDate 始终为月初且精确为前一个月，
+  //   generateDayTimelineData 以月为单位迭代时 setMonth(+1) 不会因日期溢出跳过任何月份。
+  let startDate = new Date(minDate.getFullYear(), minDate.getMonth() - 1, 1)

  // 结束日期：任务最大结束日期+30天
  let endDate = new Date(maxDate)
@@ -1418,6 +1433,14 @@ let scrollTimeout: number | null = null
 const timelineScrollLeft = ref(0)
 const timelineContainerWidth = ref(0)

+// 跳过 debouncedUpdateTimelineRange 的一次性标志
+// 用于 drag-end / toggle-end 配置 trigger 的宽度更新，只需要更新 sticky/bubble，无需重算日期范围
+let skipTimelineRangeUpdate = false
+
+// 允许 updateTimelineRange 在资源视图下执行一次的一次性标志
+// 只在任务视图 → 资源视图切换时设置，计算完成后自动清除
+let forceTimelineRangeInResourceView = false
+
 // 半圆气泡控制状态
 const hideBubbles = ref(true) // 初始时隐藏半圆，等待初始滚动完成
 const isInitialScrolling = ref(true) // 跟踪初始滚动状态
@@ -1727,6 +1750,74 @@ const visibleResources = computed(() => {
  }))
 })

+// ─── 任务视图 TaskBar 分批渲染（对齐资源视图策略）────────────────────────────────────
+// 每次虚拟窗口滑动时，新进入视口的行限流挂载，避免同帧大量 getBoundingClientRect reflow
+const TASK_VIEW_BATCH_SIZE = 3 // 每帧最多新增 3 行（节奏与资源视图一致）
+let _taskBatchRafId: number | null = null
+let _taskBatchQueue: { task: Task; originalIndex: number }[] = []
+// P2 修复：ID 可为 number | string，之前用 Set<number> 导致字符串 ID 永不被清理
+const _taskRenderedIds = new Set<number | string>()
+const taskRenderedItems = shallowRef<{ task: Task; originalIndex: number }[]>([])
+
+watch(
+  [visibleTasks, viewMode] as const,
+  ([newVisible, mode]) => {
+    if (mode !== 'task') {
+      // 切换到其他视图时清理状态
+      if (_taskBatchRafId !== null) { cancelAnimationFrame(_taskBatchRafId); _taskBatchRafId = null }
+      _taskBatchQueue = []
+      _taskRenderedIds.clear()
+      taskRenderedItems.value = []
+      return
+    }
+
+    // 显式声明为 Set<number | string>，与 _taskRenderedIds 类型对齐（任务视图 ID 为 number）
+    const newIds = new Set<number | string>(newVisible.map(t => t.task.id))
+
+    // P1 修复：移除已滚出视口的 ID，同步清理 taskBarPositions
+    // 虚拟滚动进出视口不触发 tasks watch，若不主动清理会导致位置对象无限增长
+    const removedIds: (number | string)[] = []
+    _taskRenderedIds.forEach(id => {
+      if (!newIds.has(id)) {
+        _taskRenderedIds.delete(id)
+        removedIds.push(id)
+      }
+    })
+    if (removedIds.length > 0) {
+      const newPositions = { ...taskBarPositions.value }
+      for (const id of removedIds) {
+        delete newPositions[id as number]
+      }
+      taskBarPositions.value = newPositions
+    }
+
+    // 找出新进入视口的行
+    const toAdd = newVisible.filter(t => !_taskRenderedIds.has(t.task.id))
+
+    // 取消上一帧未完成的批次
+    if (_taskBatchRafId !== null) { cancelAnimationFrame(_taskBatchRafId); _taskBatchRafId = null }
+    _taskBatchQueue = toAdd
+
+    // 立即渲染第一批（保证当帧无闪烁）
+    const firstBatch = _taskBatchQueue.splice(0, TASK_VIEW_BATCH_SIZE)
+    firstBatch.forEach(t => _taskRenderedIds.add(t.task.id))
+    taskRenderedItems.value = newVisible.filter(t => _taskRenderedIds.has(t.task.id))
+
+    // 剩余行逐帧补入
+    if (_taskBatchQueue.length > 0) {
+      const step = () => {
+        const batch = _taskBatchQueue.splice(0, TASK_VIEW_BATCH_SIZE)
+        if (batch.length === 0) { _taskBatchRafId = null; return }
+        batch.forEach(t => _taskRenderedIds.add(t.task.id))
+        taskRenderedItems.value = visibleTasks.value.filter(t => _taskRenderedIds.has(t.task.id))
+        _taskBatchRafId = _taskBatchQueue.length > 0 ? requestAnimationFrame(step) : null
+      }
+      _taskBatchRafId = requestAnimationFrame(step)
+    }
+  },
+  { immediate: true },
+)
+
 // v1.9.6 Sprint2(P1+P4) - 资源视图TaskBar分批渲染队列（优化：批次从20改为5）
 const RESOURCE_BATCH_SIZE = 5 // 方案4: 更小批次，从20改为5
 const FRAME_TIME_BUDGET = 8 // 每帧最多8ms用于TaskBar渲染
@@ -2352,10 +2443,13 @@ const getOtherMilestonesInfo = (currentId: number) => {
 watch(isSplitBarDragging, (dragging) => {
  if (!dragging) {
    // v1.9.9 拖拽结束后，手动触发一次容器尺寸更新（因为拖拽期间ResizeObserver被暂停）
+    // 设置 skip 标志：拖拽不改变日期范围，只更新 sticky/bubble
    if (timelineContainerElement.value) {
      const newWidth = timelineContainerElement.value.clientWidth
      if (Math.abs(newWidth - timelineContainerWidth.value) > 1) {
+        skipTimelineRangeUpdate = true
        timelineContainerWidth.value = newWidth
+        nextTick(() => { skipTimelineRangeUpdate = false })
      }
    }

@@ -2388,6 +2482,23 @@ const handleSplitterDragEnd = () => {
  // 清理工作已移至watch(isSplitBarDragging)
 }

+// 监听 TaskList toggle 结束，手动更新 Timeline 内部容器宽度
+// 跳过日期范围重算，只让 sticky/bubble 重算和 TaskBar 重渲染生效
+watch(isTaskListToggling, (toggling) => {
+  if (!toggling) {
+    // toggle 结束：读取 .timeline 滚动容器的真实新宽度
+    // 使用 skip 标志，避免 watch(timelineContainerWidth) 触发 debouncedUpdateTimelineRange
+    if (timelineContainerElement.value) {
+      const newWidth = timelineContainerElement.value.clientWidth
+      if (Math.abs(newWidth - timelineContainerWidth.value) > 1) {
+        skipTimelineRangeUpdate = true
+        timelineContainerWidth.value = newWidth
+        nextTick(() => { skipTimelineRangeUpdate = false })
+      }
+    }
+  }
+})
+
 // 处理Timeline容器resize事件（如TaskList切换等）
 const handleTimelineContainerResized = () => {
  // Timeline容器大小发生变化，需要强制重新计算半圆显示状态
@@ -3518,12 +3629,18 @@ const canvasHeight = ref(0)
 const canvasOffsetLeft = ref(0) // Canvas 在全局坐标系中的偏移量
 const canvasOffsetTop = ref(0)

-// 虚拟渲染 Canvas 的安全宽度（防止超过浏览器限制）
-// 可根据实际需求调整：
-// - 5000: 最小内存 (~30MB)，适合低端设备，但滚动时更频繁更新
-// - 10000: 平衡选择 (~60MB)，覆盖小时视图 10 天，周视图 2 年
-const SAFE_CANVAS_WIDTH = 5000 // 平衡性能和覆盖范围
-const SAFE_CANVAS_HEIGHT = 5000
+// 虚拟渲染 Canvas 的安全尺寸（动态计算，防止超过浏览器限制和移动端 OOM）
+// 策略：以当前可见视口的倍数为基准，全屏/分辨率变化时 updateSvgSize() 自动重算
+// - 宽度 = clamp(视口宽度 × 3, 2000, 8000)：覆盖日视图滑动 2 屏 + 关系线缓冲
+// - 高度 = clamp(视口高度 × 3, 1200, 4000)：覆盖 3 屏任务行，移动端从 100MB→15MB
+function computeSafeCanvasDimensions(): { width: number; height: number } {
+  const vw = Math.max(timelineContainerWidth.value, 300) // 避免初始化为 0
+  const vh = Math.max(timelineBodyHeight.value, 300)
+  return {
+    width: Math.min(Math.max(vw * 3, 2000), 8000),
+    height: Math.min(Math.max(vh * 3, 1200), 4000),
+  }
+}

 function updateSvgSize() {
  if (bodyContentRef.value) {
@@ -3536,8 +3653,11 @@ function updateSvgSize() {
    const scrollLeft = timelineScrollLeft.value
    const scrollTop = timelineBodyScrollTop.value

+    // 根据当前视口（全屏/窗口/屏幕分辨率）动态确定 Canvas 安全尺寸
+    const { width: SAFE_CANVAS_WIDTH, height: SAFE_CANVAS_HEIGHT } = computeSafeCanvasDimensions()
+
    // 虚拟渲染策略（统一模式）：
-    // Canvas 始终使用固定安全宽度，通过 offsetLeft 动态定位
+    // Canvas 始终使用动态安全宽度，通过 offsetLeft 动态定位
    canvasWidth.value = SAFE_CANVAS_WIDTH

    // 计算 Canvas 覆盖的起始位置
@@ -3576,6 +3696,12 @@ function updateSvgSize() {
  }
 }

+// 原因2优化：批量合并 handleBarMounted 更新，避免每个 TaskBar 挂载都触发一次响应式变化
+// 原来：N 个 TaskBar 挂载 → N 次 taskBarPositions spread 内存复制 + N 次 GanttLinks RAF
+// 现在：N 个 TaskBar 挂载 → 1 次合并写入 + 1 次 GanttLinks 重绘
+const _pendingBarUpdates: Record<number, { left: number; top: number; width: number; height: number }> = {}
+let _barUpdateScheduled = false
+
 function handleBarMounted(payload: {
  id: number
  left: number
@@ -3584,23 +3710,52 @@ function handleBarMounted(payload: {
  height: number
 }) {
  if (!bodyContentRef.value) return
-  const baseRect = bodyContentRef.value.getBoundingClientRect()
-  // 统一坐标系：以bodyContent为基准
-  // 注意：使用 shallowRef 时，需要触发整个对象引用的变化
-  taskBarPositions.value = {
-    ...taskBarPositions.value,
-    [payload.id]: {
-      left: payload.left - baseRect.left,
-      top: payload.top - baseRect.top,
-      width: payload.width,
-      height: payload.height,
-    },
+  // 使用已有的 cachedBodyRect，避免每次挂载都触发强制 reflow
+  // bodyRectInvalidated 在滚动时被置为 true，确保坐标转换准确
+  if (!cachedBodyRect || bodyRectInvalidated) {
+    cachedBodyRect = bodyContentRef.value.getBoundingClientRect()
+    bodyRectCacheTime = Date.now()
+    bodyRectInvalidated = false
+  }
+  const baseRect = cachedBodyRect
+  // 先缓存到 pending，不立即触发响应式
+  _pendingBarUpdates[payload.id] = {
+    left: payload.left - baseRect.left,
+    top: payload.top - baseRect.top,
+    width: payload.width,
+    height: payload.height,
+  }
+  if (!_barUpdateScheduled) {
+    // 滚动期间跳过 flush：_pendingBarUpdates 继续累积，等滚动停止后统一写入
+    // GanttLinks 此时本就等待 isScrolling=false 才重绘，延迟不影响显示
+    if (isTimelineScrolling.value) return
+
+    _barUpdateScheduled = true
+    // 微任务：将同一渲染批次内的多次调用合并为一次响应式引用变化
+    Promise.resolve().then(() => {
+      _barUpdateScheduled = false
+      // 一次性合并，只触发一次 GanttLinks 重绘
+      taskBarPositions.value = { ...taskBarPositions.value, ..._pendingBarUpdates }
+      for (const key in _pendingBarUpdates) {
+        delete _pendingBarUpdates[key as unknown as number]
+      }
+      setTimeout(() => updateSvgSize(), 200)
+    })
  }
-  setTimeout(() => {
-    updateSvgSize()
-  }, 200)
 }

+// 滚动停止时统一 flush 滚动期间积累的 bar 位置更新
+watch(isTimelineScrolling, (scrolling) => {
+  if (scrolling) return
+  if (Object.keys(_pendingBarUpdates).length === 0) return
+  _barUpdateScheduled = false
+  taskBarPositions.value = { ...taskBarPositions.value, ..._pendingBarUpdates }
+  for (const key in _pendingBarUpdates) {
+    delete _pendingBarUpdates[key as unknown as number]
+  }
+  setTimeout(() => updateSvgSize(), 200)
+})
+
 // 向上传递 TaskBar 拖拽/拉伸事件
 const handleTaskBarDragEnd = (updatedTask: Task) => {
  // 如果是资源视图，需要更新dataSource中的资源数据
@@ -3763,6 +3918,11 @@ onMounted(() => {
        if (isSplitBarDragging.value) {
          return
        }
+        // TaskList toggle 期间不处理宽度变化，外层 .gantt-body 已屏蔽日期范围重算
+        // toggle 结束后由 watch(isTaskListToggling) 手动更新宽度
+        if (isTaskListToggling.value) {
+          return
+        }

        for (const entry of entries) {
          const newWidth = entry.contentRect.width
@@ -3816,8 +3976,12 @@ const handleTaskListVerticalScroll = (event: CustomEvent) => {
  debouncedUpdateCanvasPosition()

  if (timelineBodyElement.value && Math.abs(timelineBodyElement.value.scrollTop - scrollTop) > 1) {
-    // 使用更精确的比较，避免1px以内的细微差异导致的循环触发
+    // 设置标志位：当前是由 TaskList 触发的同步写入
+    // 防止 handleTimelineBodyScroll 被触发后反向再次派发事件（2跳链路）
+    _isSyncingScrollFromTaskList = true
    timelineBodyElement.value.scrollTop = scrollTop
+    // scroll 事件会同步触发，Promise.resolve 在其后执行，确保标志在返回相义务后重置
+    Promise.resolve().then(() => { _isSyncingScrollFromTaskList = false })
  }
 }

@@ -3834,11 +3998,22 @@ const handleTimelineBodyScroll = (event: Event) => {
  // 优化：滚动时失效 bodyRect 缓存（用于连接线拖拽）
  bodyRectInvalidated = true

+  // GanttLinks 性能优化：设置滚动标志，暂停 canvas 重绘
+  isTimelineScrolling.value = true
+  if (_scrollIdleTimer !== null) clearTimeout(_scrollIdleTimer)
+  _scrollIdleTimer = setTimeout(() => {
+    _scrollIdleTimer = null
+    isTimelineScrolling.value = false
+  }, 150)
+
  debouncedUpdateCanvasPosition()

  // 拖拽时不同步滚动事件，避免性能问题
  if (isDragging.value) return

+  // 由 TaskList → Timeline 同步写入触发时，不再反向派发，避免 2 跳循环
+  if (_isSyncingScrollFromTaskList) return
+
  // 同步垂直滚动到TaskList
  if (scrollTop >= 0) {
    window.dispatchEvent(
@@ -4587,10 +4762,11 @@ const debouncedUpdateTimelineRange = (delay = 50) => {
 const updateTimelineRange = () => {
  // 资源视图下不自动调整时间范围，保持Timeline背景层（header + 竖列）稳定
  // 避免滚动时重新生成timelineData导致header闪烁
-  // 虚拟滚动通过visibleTimeRange过滤TaskBar即可
-  if (viewMode.value === 'resource') {
+  // 例外：任务视图 → 资源视图切换时，需要一次性重算以实现基于资源任务的日期范围
+  if (viewMode.value === 'resource' && !forceTimelineRangeInResourceView) {
    return
  }
+  forceTimelineRangeInResourceView = false

  let newRange: { startDate: Date; endDate: Date } | null = null

@@ -4625,6 +4801,9 @@ watch(
    // 拖拽 splitter 时跳过重新计算
    if (isSplitterDragging.value) return

+    // drag-end / toggle-end 触发的宽度更新：只需要 sticky/bubble/TaskBar 重渲染，跳过日期范围重算
+    if (skipTimelineRangeUpdate) return
+
    // 只在容器宽度从 0 变为有效值，或容器宽度发生显著变化时重新计算
    if (!oldWidth || oldWidth === 0 || Math.abs(newWidth - oldWidth) > 50) {
      if (newWidth > 0) {
@@ -4672,12 +4851,13 @@ watch(
      debouncedUpdateTimelineRange()
    } else if (newViewMode === 'resource') {
      if (viewModeChanged) {
-        // bugfix: 切换到资源视图时直接调用 scrollToTodayCenter
-        // 原因：updateTimelineRange() 在 resource 视图下直接返回（不更新 timelineData/timelineConfig），
-        // 导致内层 watch 无法触发，timeline 保留任务视图中拖拽后的偏移位置
-        // 注意：切换视图不重新挂载 DOM，timelineContainerElement 始终可用，
-        // nextTick 后直接调用即可，scrollToTodayCenter 内部有重试机制无需额外 setTimeout
-        nextTick(() => scrollToTodayCenter())
+        // 切换到资源视图：基于资源任务重算日期范围，重算完成后由 watch([timelineData,...]) 触发滚到今日
+        // 重置 hasInitialAutoScroll，确保 watch([timelineData, timelineConfig...]) 在重算完成后能滚到今日
+        // 不在此处直接调用 scrollToTodayCenter()，因为 debouncedUpdateTimelineRange 有 50ms 延迟，
+        // nextTick 会在 50ms 之前就执行，导致用旧的 task 视图坐标滚到错误位置
+        hasInitialAutoScroll = false
+        forceTimelineRangeInResourceView = true
+        debouncedUpdateTimelineRange()
      }
    }
  },
@@ -4688,19 +4868,19 @@ watch(
  () => tasks.value,
  newTasks => {
    invalidateTaskDateRangeCache()
-    // 优化：使用 for 循环直接构建 Set，避免 map 创建临时数组
-    const currentTaskIds = new Set<number>()
+    // P2 修复：task.id 可为 number 或 string（资源视图），统一转为 string 比较
+    // 原来使用 parseInt(taskIdStr) 会将 "res-1" → NaN，导致字符串 ID 永远无法匹配，位置信息堆积
+    const currentTaskIdStrs = new Set<string>()
    for (const task of newTasks) {
-      currentTaskIds.add(task.id)
+      currentTaskIdStrs.add(String(task.id))
    }

-    // 优化：使用 for...in 循环代替 Object.keys().forEach()
    // 注意：shallowRef 需要创建新对象来触发响应式
    const newPositions: Record<number, any> = {}
    for (const taskIdStr in taskBarPositions.value) {
-      const taskId = parseInt(taskIdStr)
-      if (currentTaskIds.has(taskId)) {
-        newPositions[taskId] = taskBarPositions.value[taskId]
+      // 对象键本身就是字符串，直接与 string Set 比较，避免 parseInt 对非数字 ID 返回 NaN
+      if (currentTaskIdStrs.has(taskIdStr)) {
+        newPositions[taskIdStr as unknown as number] = taskBarPositions.value[taskIdStr as unknown as number]
      }
    }
    taskBarPositions.value = newPositions
@@ -5222,6 +5402,7 @@ const handleAddSuccessor = (task: Task) => {
          :hovered-task-id="hoveredTaskId"
          :vertical-lines="monthFirstVerticalLines"
          :show-vertical-lines="currentTimeScale === TimelineScale.WEEK"
+          :is-scrolling="isTimelineScrolling"
        />

        <!-- 连接线拖拽引导线 - 🚀 优化：使用命令式 API，由 RAF 直接调用 draw() -->
@@ -5410,9 +5591,9 @@ const handleAddSuccessor = (task: Task) => {
        <!-- 同时需要考虑左侧TaskList包含1px的bottom border -->
        <div class="task-bar-container" :style="{ height: `${contentHeight}px` }">
          <div class="task-rows" :style="{ height: `${contentHeight}px` }">
-            <!-- 任务视图：使用虚拟滚动渲染可见任务 -->
+            <!-- 任务视图：使用虚拟滚动分批渲染可见任务（taskRenderedItems 每帧限流 3 行新增）-->
            <div
-              v-for="{ task, originalIndex } in visibleTasks"
+              v-for="{ task, originalIndex } in taskRenderedItems"
              v-if="viewMode === 'task'"
              :key="task.id"
              class="task-row"
--- a/src/components/Timeline/GanttConflicts.vue
+++ b/src/components/Timeline/GanttConflicts.vue
@@ -91,7 +91,21 @@ const canvasStyle = computed(() => ({
 // 监听任务列表变化
 watch(() => props.tasks, () => {
  if (isDraggingTaskBar.value) {
+    // 拖拽进行中：标记需要重算，等拖拽结束后再执行
    needsRecalculation.value = true
+  } else {
+    // 拖拽结束后的已提交数据变更：isDraggingTaskBar 已先于数据更新变为 false，
+    // 此处直接触发增量/全量重算，避免冲突层不刷新。
+    nextTick(() => {
+      if (lastChangedTaskId.value !== null) {
+        recalculateConflictsIncremental(lastChangedTaskId.value)
+        lastChangedTaskId.value = null
+      } else {
+        texturePatterns.value = { light: null, medium: null, severe: null }
+        coordsCache.clear()
+        recalculateConflicts()
+      }
+    })
  }
 }, { deep: true })

--- a/src/utils/dragOverRegistry.ts
+++ b/src/utils/dragOverRegistry.ts
@@ -0,0 +1,42 @@
+/**
+ * dragOverRegistry - 任务行拖拽悬停事件委托注册表
+ *
+ * 解决性能问题：原来每个可见 TaskRow 各自注册一个 window 'task-row-drag-over' 监听器，
+ * 拖拽时 CustomEvent 广播需逐一触发所有监听器（O(n) 开销）。
+ *
+ * 改进后：改为单一全局监听器 + Map 直接查找（O(1)），
+ * 监听器数量从 N 个（可见行数）降为 1 个。
+ */
+
+type DragOverCallback = (mouseEvent: MouseEvent) => void
+
+const _registry = new Map<number | string, DragOverCallback>()
+
+function _handleGlobalDragOver(e: Event) {
+  const { taskId, event: mouseEvent } = (e as CustomEvent).detail
+  const handler = _registry.get(taskId)
+  if (handler) handler(mouseEvent)
+}
+
+/**
+ * 注册任务行的拖拽悬停回调。
+ * 第一次注册时自动绑定全局 window 监听器。
+ */
+export function registerDragOver(taskId: number | string, handler: DragOverCallback): void {
+  const wasEmpty = _registry.size === 0
+  _registry.set(taskId, handler)
+  if (wasEmpty) {
+    window.addEventListener('task-row-drag-over', _handleGlobalDragOver)
+  }
+}
+
+/**
+ * 注销任务行的拖拽悬停回调。
+ * 最后一个注销时自动解绑全局 window 监听器。
+ */
+export function unregisterDragOver(taskId: number | string): void {
+  _registry.delete(taskId)
+  if (_registry.size === 0) {
+    window.removeEventListener('task-row-drag-over', _handleGlobalDragOver)
+  }
+}
Author	SHA1	Message	Date
$LINING-PC\lining$ LINING-PC\lining	c6c13c7807	v1.10.0 - CHANGELOG update	2026-03-08 09:43:03 +08:00
$LINING-PC\lining$ LINING-PC\lining	2d0461319a	v1.10.0 - performance enhacements	2026-03-07 19:41:51 +08:00
$LINING-PC\lining$ LINING-PC\lining	b6de910baa	v1.9.5 - release notes button	2026-03-07 19:37:38 +08:00
$LINING-PC\lining$ LINING-PC\lining	389fe60a8f	v1.9.5 - performance enhancement	2026-03-07 19:19:13 +08:00
$LINING-PC\lining$ LINING-PC\lining	c6a7edf502	v1.9.4 - jspdf + dompurify	2026-03-06 16:14:45 +08:00
$LINING-PC\lining$ LINING-PC\lining	aad991a1ea	v1.9.4 - vulnerabilities fix	2026-03-06 15:56:08 +08:00
$LINING-PC\lining$ LINING-PC\lining	960a3b2e6e	v1.9.4 - bug fix	2026-03-06 15:39:09 +08:00
$LINING-PC\lining$ LINING-PC\lining	fb21be2cf9	v1.9.3 - fix taskbar cal issue	2026-03-05 13:01:31 +08:00
$LINING-PC\lining$ LINING-PC\lining	58edf95f5a	updates	2026-03-02 09:19:43 +08:00
$LINING-PC\lining$ LINING-PC\lining	5c93f901ee	v1.9.2 - PR#14 merged.	2026-02-28 18:53:38 +08:00