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# <img src="public/assets/jordium-gantt-vue3-logo.svg" alt="jordium-gantt-vue3 logo" width="32" style="vertical-align:middle;margin-right:8px;" /> jordium-gantt-vue3
<p align="center">
<a href="https://www.npmjs.com/package/jordium-gantt-vue3">
<img src="https://img.shields.io/npm/v/jordium-gantt-vue3?style=flat-square" alt="npm version">
</a>
<a href="https://www.npmjs.com/package/jordium-gantt-vue3">
<img src="https://img.shields.io/npm/dt/jordium-gantt-vue3?style=flat-square" alt="npm total">
</a>
<a href="https://opensource.org/licenses/MIT">
<img src="https://img.shields.io/badge/license-MIT-blue.svg" alt="MIT License">
</a>
<a href="https://vuejs.org/">
<img src="https://img.shields.io/badge/Vue.js->=3.5.13-4FC08D?style=flat-square&logo=vue.js&logoColor=white" alt="Vue.js">
</a>
<a href="https://www.typescriptlang.org/">
<img src="https://img.shields.io/badge/TypeScript->=5.8.3-3178C6?style=flat-square&logo=typescript&logoColor=white" alt="TypeScript">
</a>
<a href="https://nodejs.org/">
<img src="https://img.shields.io/badge/Node.js->=16.0.0-339933?style=flat-square&logo=node.js&logoColor=white" alt="Nodejs">
</a>
</p>
<p align="center">
<a href="./README.md">中文</a> |
<a href="./README-EN.md">English</a> |
<a href="./CHANGELOG.md">Release Notes</a>
</p>
<p align="center">A modern Vue 3 Gantt chart component library providing complete solutions for project management and task scheduling</p>
<!-- <p align="center">
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<p align="center">
<a href="https://jordium.gitee.io/jordium-gantt-vue3/">
<strong>📱 Gitee Live Demo</strong>
</a>
&nbsp;&nbsp;|&nbsp;&nbsp;
<a href="https://nelson820125.github.io/jordium-gantt-vue3/">
<strong>📱 Github Live Demo</strong>
</a>
&nbsp;&nbsp;|&nbsp;&nbsp;
<a href="https://github.com/nelson820125/jordium-gantt-vue3">
<strong>📦 GitHub</strong>
</a>
&nbsp;&nbsp;|&nbsp;&nbsp;
<a href="https://www.npmjs.com/package/jordium-gantt-vue3">
<strong>📚 npm</strong>
</a>
</p>
---
## ✨ Introduction
jordium-gantt-vue3 is a modern Gantt chart component built with Vue 3 and TypeScript, designed specifically for project management and task scheduling scenarios. It provides rich interactive features, flexible configuration options, and elegant visual effects.
### Core Features
- 📊 **Feature Complete** - Task management, milestones, dependencies, progress tracking
- 🎨 **Theme System** - Built-in light/dark themes with customizable styles
- 🖱️ **Smooth Interaction** - Drag & resize, zoom, double-click edit, context menu
- 🌍 **Internationalization** - Built-in Chinese/English with extensible language support
-**High Performance** - Virtual scrolling, lazy loading for handling massive data
- 💎 **Type Safe** - Full TypeScript support
### Preview
#### Light Theme
<img src="design/screenshots/light-theme-en.png" alt="Light Theme" width="100%">
<img src="design/screenshots/light-theme-en1.png" alt="Light Theme" width="100%">
#### Dark Theme
<img src="design/screenshots/dark-theme-en.png" alt="Dark Theme" width="100%">
<img src="design/screenshots/dark-theme-en1.png" alt="Dark Theme" width="100%">
---
## 📦 Installation
Install using your preferred package manager:
```bash
# npm
npm install jordium-gantt-vue3
# yarn
yarn add jordium-gantt-vue3
# pnpm
pnpm add jordium-gantt-vue3
```
---
## 🚀 Quick Start
### Import Component
Import the `GanttChart` component and styles:
```vue
<script setup lang="ts">
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
</script>
```
> **Tip**: The style file only needs to be imported once in your project. It's recommended to import it in `main.ts` or the root component.
### First Example
Create your first Gantt chart:
```vue
<template>
<div style="height: 600px;">
<GanttChart :tasks="tasks" :milestones="milestones" />
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
const tasks = ref([
{
id: 1,
name: 'Project Kickoff',
startDate: '2025-01-01',
endDate: '2025-01-10',
progress: 100,
},
{
id: 2,
name: 'Requirements Analysis',
startDate: '2025-01-11',
endDate: '2025-01-20',
progress: 80,
predecessor: [1],
},
{
id: 3,
name: 'System Design',
startDate: '2025-01-21',
endDate: '2025-02-05',
progress: 50,
predecessor: [2],
},
])
const milestones = ref([
{
id: 101,
name: 'Project Approval',
startDate: '2025-01-01',
type: 'milestone',
},
])
</script>
```
🎯 **[Try Live Demo on Github →](https://nelson820125.github.io/jordium-gantt-vue3/)**
<span><strong>Recommended: <a href="https://dovee.cc/a.php?anaxjgyz1ozZq2B">DOVE</a> VPN for fast and stable access.</strong></span> <span style="color:red;">(Note: Please use VPN services legally)</span>
## 🌞 NPM Package Usage Example
Please refer to the npm-demo folder in the project.
It is a standalone project that can be opened and run independently using your IDE.
Before running, make sure to install the Element Plus library and the jordium-gantt-vue3 plugin package.
```bash
# npm
npm install element-plus
npm install jordium-gantt-vue3
npm run dev
```
---
## 📖 Component Guide
### GanttChart Component
`GanttChart` is the core entry point of the library, providing complete Gantt chart functionality.
#### Basic Props
| Prop | Type | Default | Description |
| --------------------------- | --------- | ------- | ------------------------------------------------------------------------- |
| `tasks` | `Task[]` | `[]` | Array of task data |
| `milestones` | `Task[]` | `[]` | Array of milestone data (Note: Type is Task[], must set type='milestone') |
| `resources` ![v1.9.0](https://img.shields.io/badge/v1.9.0-409EFF?style=flat-square&labelColor=ECF5FF) | `Resource[]` | `[]` | Array of resource data (used in resource planning view) |
| `viewMode` ![v1.9.0](https://img.shields.io/badge/v1.9.0-409EFF?style=flat-square&labelColor=ECF5FF) | `'task' \| 'resource'` | `'task'` | View mode: 'task' for task planning view \| 'resource' for resource planning view |
| `showToolbar` | `boolean` | `true` | Whether to show the toolbar |
| `useDefaultDrawer` | `boolean` | `true` | Whether to use the built-in task edit drawer (TaskDrawer) |
| `useDefaultMilestoneDialog` | `boolean` | `true` | Whether to use the built-in milestone edit dialog (MilestoneDialog) |
| `autoSortByStartDate` | `boolean` | `false` | Whether to automatically sort tasks by start date |
| `allowDragAndResize` | `boolean` | `true` | Whether to allow dragging and resizing tasks/milestones |
| `enableTaskRowMove` | `boolean` | `false` | Whether to allow dragging and dropping TaskRow |
| `enableTaskListContextMenu` | `boolean` | `true` | Whether to enable TaskList (TaskRow) context menu. When `true`: uses built-in menu if `task-list-context-menu` slot is not declared, uses custom menu if slot is declared; when `false`: context menu is completely disabled |
| `enableTaskBarContextMenu` | `boolean` | `true` | Whether to enable TaskBar context menu. When `true`: uses built-in menu if `task-bar-context-menu` slot is not declared, uses custom menu if slot is declared; when `false`: context menu is completely disabled |
| `assigneeOptions` | `Array<{ key?: string \| number; value: string \| number; label: string }>` | `[]` | Assignee dropdown options in task edit drawer |
| `locale` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | `'zh-CN' \| 'en-US'` | `'zh-CN'` | Language setting (reactive). Component's internal language will follow changes |
| `theme` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | `'light' \| 'dark'` | `'light'` | Theme mode (reactive). Component's theme will follow changes |
| `timeScale` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | `'hour' \| 'day' \| 'week' \| 'month' \| 'quarter' \| 'year'` | `'week'` | Time scale (reactive). Timeline scale will follow changes |
| `fullscreen` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean` | `false` | Fullscreen state control (reactive). Component's fullscreen state will follow changes |
| `expandAll` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean` | `true` | Expand/collapse all tasks (reactive). All tasks' expand state will follow changes |
| `enableLinkAnchor` ![v1.7.2](https://img.shields.io/badge/v1.7.2-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean` | `true` | Whether to enable Link AnchorDefault: true |
| `pendingTaskBackgroundColor` ![v1.8.0](https://img.shields.io/badge/v1.8.0-409EFF?style=flat-square&labelColor=ECF5FF) | `string` | `'#409eff'` | Background color for pending tasks' TaskBar. Supports hex color values (e.g., `'#409eff'`). **Priority**: Higher than system default, lower than Task object's `barColor` property |
| `delayTaskBackgroundColor` ![v1.8.0](https://img.shields.io/badge/v1.8.0-409EFF?style=flat-square&labelColor=ECF5FF) | `string` | `'#f56c6c'` | Background color for overdue tasks' TaskBar. Supports hex color values (e.g., `'#f56c6c'`). **Priority**: Higher than system default, lower than Task object's `barColor` property |
| `completeTaskBackgroundColor` ![v1.8.0](https://img.shields.io/badge/v1.8.0-409EFF?style=flat-square&labelColor=ECF5FF) | `string` | `'#909399'` | Background color for completed tasks' TaskBar. Supports hex color values (e.g., `'#909399'`). **Priority**: Higher than system default, lower than Task object's `barColor` property |
| `ongoingTaskBackgroundColor` ![v1.8.0](https://img.shields.io/badge/v1.8.0-409EFF?style=flat-square&labelColor=ECF5FF) | `string` | `'#e6a23c'` | Background color for ongoing tasks' TaskBar. Supports hex color values (e.g., `'#e6a23c'`). **Priority**: Higher than system default, lower than Task object's `barColor` property |
| `showActualTaskbar` ![v1.8.0](https://img.shields.io/badge/v1.8.0-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean` | `false` | Whether to display actual TaskBar (shows actual execution progress below planned TaskBar) |
| `enableTaskbarTooltip` ![v1.8.0](https://img.shields.io/badge/v1.8.0-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean` | `true` | Whether to enable TaskBar hover tooltip (shows task details on mouse hover) |
| `showConflicts` ![v1.9.0](https://img.shields.io/badge/v1.9.0-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean` | `true` | Whether to display resource conflict visualization layer (shows diagonal stripe background for overload zones in resource view) |
| `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
The `TaskListColumn` component is used to define task list columns in declarative mode (`taskListColumnRenderMode="declarative"`). Similar to Element Plus's `el-table-column` component.
| Prop | Type | Default | Description |
| ---------- | ------------------------------ | -------- | ------------------------------------------------------------------------------------------------------------------------------------------------ |
| `prop` | `string` | - | Column property name, used to access task object fields. Examples: `'name'`, `'assignee'`, `'progress'`, etc. |
| `label` | `string` | - | Column header display text |
| `width` | `number \| string` | - | Column width. Number represents pixels (e.g., `200`), string supports percentage (e.g., `'20%'`) |
| `align` | `'left' \| 'center' \| 'right'` | `'left'` | Column content alignment |
| `cssClass` | `string` | - | Custom CSS class name for column styling |
**Usage Example**:
```vue
<GanttChart
:tasks="tasks"
task-list-column-render-mode="declarative"
>
<TaskListColumn prop="name" label="Task Name" width="300" />
<TaskListColumn prop="assignee" label="Assignee" width="150" align="center" />
<TaskListColumn prop="progress" label="Progress" width="100" align="center" />
<TaskListColumn prop="startDate" label="Start Date" width="140" />
<TaskListColumn prop="endDate" label="End Date" width="140" />
</GanttChart>
```
> **💡 Tips**:
> - The `TaskListColumn` component itself does not render any content, it only declares column configuration
> - Must be used inside the `GanttChart` component with `task-list-column-render-mode="declarative"` set
> - Column display order is determined by the declaration order of `TaskListColumn` components
> - For detailed column content customization and slot usage, see [Slots](#slots) section
#### TaskListContextMenu Component Props
The `TaskListContextMenu` component is used to declaratively define the context menu for TaskList (TaskRow). Takes effect when `enableTaskListContextMenu` is `true`.
| Prop | Type | Default | Description |
| ---------- | ---------------------- | ----------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `taskType` | `string \| string[]` | `undefined` | Specifies which task types should display this context menu. When not set, follows existing logic (all tasks show menu). When set, only specified types show menu. Supports single type (e.g., `'task'`) or multiple types (e.g., `['task', 'milestone']`) |
**Usage Examples**:
```vue
<GanttChart
:tasks="tasks"
:enable-task-list-context-menu="true"
>
<!-- Default behavior: all tasks show this context menu -->
<TaskListContextMenu>
<template #default="scope">
<div class="custom-menu">
<div class="menu-item" @click="editTask(scope.row)">Edit</div>
<div class="menu-item" @click="deleteTask(scope.row)">Delete</div>
</div>
</template>
</TaskListContextMenu>
<!-- Only show for tasks with type='task' -->
<TaskListContextMenu task-type="task">
<template #default="scope">
<div class="custom-menu">
<div class="menu-item">Task Specific Menu</div>
</div>
</template>
</TaskListContextMenu>
<!-- Show for multiple types -->
<TaskListContextMenu :task-type="['task', 'milestone']">
<template #default="scope">
<div class="custom-menu">
<div class="menu-item">Task and Milestone Menu</div>
</div>
</template>
</TaskListContextMenu>
</GanttChart>
```
> **💡 Tips**:
> - The `TaskListContextMenu` component itself does not render any content, it only declares menu configuration
> - Must be used inside the `GanttChart` component with `enable-task-list-context-menu="true"` set
> - Menu positioning and visibility are automatically managed internally, users only need to focus on menu content HTML structure
> - Menu automatically closes when clicking outside or scrolling
> - For detailed slot usage, see [Slots](#slots) section
#### TaskBarContextMenu Component Props
The `TaskBarContextMenu` component is used to declaratively define the context menu for TaskBar (timeline task bars). Takes effect when `enableTaskBarContextMenu` is `true`.
| Prop | Type | Default | Description |
| ---------- | ---------------------- | ----------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `taskType` | `string \| string[]` | `undefined` | Specifies which task types should display this context menu. When not set, follows existing logic (all tasks show menu). When set, only specified types show menu. Supports single type (e.g., `'task'`) or multiple types (e.g., `['task', 'milestone']`) |
**Usage Examples**:
```vue
<GanttChart
:tasks="tasks"
:enable-task-bar-context-menu="true"
>
<!-- Default behavior: all tasks show this context menu -->
<TaskBarContextMenu>
<template #default="scope">
<div class="custom-menu">
<div class="menu-item" @click="extendTask(scope.row)">Extend Task</div>
<div class="menu-item" @click="moveTask(scope.row)">Move Task</div>
</div>
</template>
</TaskBarContextMenu>
<!-- Only show for tasks with type='task' -->
<TaskBarContextMenu task-type="task">
<template #default="scope">
<div class="custom-menu">
<div class="menu-item">Task Bar Specific Menu</div>
</div>
</template>
</TaskBarContextMenu>
<!-- Show for multiple types -->
<TaskBarContextMenu :task-type="['task', 'story']">
<template #default="scope">
<div class="custom-menu">
<div class="menu-item">Task and Story Menu</div>
</div>
</template>
</TaskBarContextMenu>
</GanttChart>
```
> **💡 Tips**:
> - The `TaskBarContextMenu` component itself does not render any content, it only declares menu configuration
> - Must be used inside the `GanttChart` component with `enable-task-bar-context-menu="true"` set
> - Menu positioning and visibility are automatically managed internally, users only need to focus on menu content HTML structure
> - Menu automatically closes when clicking outside or scrolling
> - For detailed slot usage, see [Slots](#slots) section
#### Configuration Object Props
For complete configuration object documentation, see [⚙️ Configuration & Customization](#⚙️-configuration--customization) section.
| Prop | Type | Default | Description |
| ---------------- | ---------------------------- | ----------------------------------------------------------------------- | ---------------------------- |
| `toolbarConfig` | `ToolbarConfig` | `{}` | Toolbar configuration |
| `taskListConfig` | `TaskListConfig` | `undefined` | Task list configuration |
| `resourceListConfig` ![v1.9.0](https://img.shields.io/badge/v1.9.0-409EFF?style=flat-square&labelColor=ECF5FF) | `ResourceListConfig` | `undefined` | Resource list configuration |
| `taskBarConfig` | `TaskBarConfig` | `undefined` | Task bar style configuration |
| `localeMessages` | `Partial<Messages['zh-CN']>` | `undefined` | Custom localization messages |
| `workingHours` | `WorkingHours` | `{ morning: { start: 8, end: 11 }, afternoon: { start: 13, end: 17 } }` | Working hours configuration |
#### Callback Props
| Prop | Type | Description |
| -------------------- | ------------------------------------ | ------------------------------------------------------------------------------------ |
| `onTodayLocate` | `() => void` | Toolbar "Today" button click callback |
| `onExportCsv` | `() => boolean \| void` | Toolbar "Export CSV" button click callback, return `false` to prevent default export |
| `onExportPdf` | `() => void` | Toolbar "Export PDF" button click callback |
| `onLanguageChange` | `(lang: 'zh-CN' \| 'en-US') => void` | Language switch callback |
| `onThemeChange` | `(isDark: boolean) => void` | Theme switch callback |
| `onFullscreenChange` | `(isFullscreen: boolean) => void` | Fullscreen toggle callback |
| `onExpandAll` | `() => void` | Toolbar "Expand All" button click callback |
| `onCollapseAll` | `() => void` | Toolbar "Collapse All" button click callback |
#### Component Events
For complete event documentation, see:
- **Task-related events**: See [Task Management](#task-management) section below
- **Milestone-related events**: See [Milestone Management](#milestone-management) section below
**Event List Overview:**
| Event Name | Parameters | Description |
| ------------------------ | --------------------------------- | -------------------------------------- |
| `add-task` | - | Clicked toolbar "Add Task" button |
| `task-click` | `(task: Task, event: MouseEvent)` | Clicked task |
| `task-double-click` | `(task: Task)` | Double-clicked task |
| `task-added` | `{ task: Task }` | Triggered after task added |
| `task-updated` | `{ task: Task }` | Triggered after task updated |
| `task-deleted` | `{ task: Task }` | Triggered after task deleted |
| `taskbar-drag-end` | `(task: Task)` | Task drag ended |
| `taskbar-resize-end` | `(task: Task)` | Task resize ended |
| `predecessor-added` | `{ targetTask, newTask }` | Added predecessor task |
| `successor-added` | `{ targetTask, newTask }` | Added successor task |
| `timer-started` | `(task: Task)` | Task timer started |
| `timer-stopped` | `(task: Task)` | Task timer stopped |
| `add-milestone` | - | Clicked toolbar "Add Milestone" button |
| `milestone-saved` | `(milestone: Task)` | Milestone saved |
| `milestone-deleted` | `{ milestoneId: number }` | Milestone deleted |
| `milestone-icon-changed` | `{ milestoneId, icon }` | Milestone icon changed |
| `milestone-drag-end` | `(milestone: Task)` | Milestone drag ended |
| `task-row-moved` | `payload: { draggedTask: Task, targetTask: Task, position: 'after' \| 'child', oldParent: Task \| null, newParent: Task \| null }` | TaskRow drag ended (optional) |
| `taskbar-resource-change` ![v1.9.0](https://img.shields.io/badge/v1.9.0-409EFF?style=flat-square&labelColor=ECF5FF) | `payload: { task: Task, oldResourceId: string \| number, newResourceId: string \| number }` | Task moved across resources (dragging task to another resource row in resource view) |
#### Example 1: Simplest Gantt Chart
```vue
<template>
<div style="height: 600px;">
<GanttChart :tasks="tasks" :assignee-options="assigneeOptions" />
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
const tasks = ref([
{
id: 1,
name: 'Task 1',
startDate: '2025-01-01',
endDate: '2025-01-10',
progress: 100,
},
])
const assigneeOptions = ref([
{ value: 'alice', label: 'Alice' },
{ value: 'bob', label: 'Bob' },
{ value: 'charlie', label: 'Charlie' },
])
</script>
```
#### Example 2: Gantt Chart with Milestones
```vue
<template>
<div style="height: 600px;">
<GanttChart :tasks="tasks" :milestones="milestones" :assignee-options="assigneeOptions" />
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
const tasks = ref([
{
id: 1,
name: 'Project Kickoff',
startDate: '2025-01-01',
endDate: '2025-01-10',
progress: 100,
},
])
const milestones = ref([
{
id: 101,
name: 'Project Approval',
startDate: '2025-01-01',
type: 'milestone',
icon: 'diamond',
},
])
const assigneeOptions = ref([
{ value: 'alice', label: 'Alice' },
{ value: 'bob', label: 'Bob' },
{ value: 'charlie', label: 'Charlie' },
])
</script>
```
#### Example 3: Hide Toolbar, Custom Control Buttons with Event Binding
```vue
<template>
<div>
<!-- Custom toolbar -->
<div class="custom-toolbar">
<button @click="addTask">Add Task</button>
<button @click="addMilestone">Add Milestone</button>
</div>
<!-- Gantt chart component with hidden built-in toolbar -->
<div style="height: 600px;">
<GanttChart
:tasks="tasks"
:milestones="milestones"
:show-toolbar="false"
:assignee-options="assigneeOptions"
@task-added="handleTaskAdded"
@milestone-saved="handleMilestoneSaved"
/>
</div>
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
const tasks = ref([])
const milestones = ref([])
const assigneeOptions = ref([
{ value: 'alice', label: 'Alice' },
{ value: 'bob', label: 'Bob' },
{ value: 'charlie', label: 'Charlie' },
])
const addTask = () => {
const newTask = {
id: Date.now(),
name: 'New Task',
startDate: new Date().toISOString().split('T')[0],
endDate: new Date().toISOString().split('T')[0],
progress: 0,
}
tasks.value.push(newTask)
}
const addMilestone = () => {
const newMilestone = {
id: Date.now(),
name: 'New Milestone',
startDate: new Date().toISOString().split('T')[0],
type: 'milestone',
}
milestones.value.push(newMilestone)
}
const handleTaskAdded = e => {
console.log('Task added:', e.task)
}
const handleMilestoneSaved = milestone => {
console.log('Milestone saved:', milestone)
}
</script>
```
#### Example 4: External Component State Control (TimeScale, Fullscreen, Expand/Collapse, Locale, Theme)
Control component state through reactive Props binding. Component state will automatically follow Props changes.
```vue
<template>
<div>
<!-- External control panel -->
<div class="control-panel">
<button @click="propsFullscreen = !propsFullscreen">Toggle Fullscreen</button>
<button @click="propsExpandAll = !propsExpandAll">Expand/Collapse All</button>
<button @click="propsLocale = 'zh-CN'">中文</button>
<button @click="propsLocale = 'en-US'">English</button>
<button @click="propsTimeScale = 'day'">Day View</button>
<button @click="propsTimeScale = 'week'">Week View</button>
<button @click="propsTimeScale = 'month'">Month View</button>
<button @click="propsTheme = 'light'">Light Theme</button>
<button @click="propsTheme = 'dark'">Dark Theme</button>
</div>
<!-- Gantt chart component -->
<div style="height: 600px;">
<GanttChart
:tasks="tasks"
:milestones="milestones"
:locale="propsLocale"
:theme="propsTheme"
:time-scale="propsTimeScale"
:fullscreen="propsFullscreen"
:expand-all="propsExpandAll"
/>
</div>
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
const tasks = ref([
{ id: 1, name: 'Task 1', startDate: '2025-01-01', endDate: '2025-01-10', progress: 50 },
{ id: 2, name: 'Task 2', startDate: '2025-01-05', endDate: '2025-01-15', progress: 30 },
])
const milestones = ref([])
// Props control variables
const propsLocale = ref<'zh-CN' | 'en-US'>('zh-CN')
const propsTheme = ref<'light' | 'dark'>('light')
const propsTimeScale = ref<'hour' | 'day' | 'week' | 'month' | 'quarter' | 'year'>('week')
const propsFullscreen = ref(false)
const propsExpandAll = ref(false)
</script>
```
---
### Task Management
Tasks are the core elements of the Gantt chart. The component provides complete CRUD operation support for tasks, including adding, editing, deleting tasks, and rich interactive events.
#### Task Data Structure
| Field | Type | Required | Default | Description |
| ------------------ | ---------- | -------- | ----------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `id` | `number` | ✅ | - | Unique task identifier |
| `name` | `string` | ✅ | - | Task name |
| `startDate` | `string` | - | - | Start date, format: 'YYYY-MM-DD' or 'YYYY-MM-DD HH:mm' |
| `endDate` | `string` | - | - | End date, format: 'YYYY-MM-DD' or 'YYYY-MM-DD HH:mm' |
| `progress` | `number` | - | `0` | Task progress, range 0-100 |
| `predecessor` | `number[]` | - | - | Array of predecessor task IDs, standard format: `[1, 2, 3]`<br/>**Compatible formats**: Also supports string `'1,2,3'` or string array `['1', '2', '3']`, component will auto-parse |
| `assignee` | `string` \| `string[]` ![v1.8.0](https://img.shields.io/badge/v1.8.0-409EFF?style=flat-square&labelColor=ECF5FF) | - | - | Task assignee, used as the value binding for the assignee dropdown menu. Supports single assignee (string) or multiple assignees (string array) |
| `assigneeName` | `string` \| `string[]` ![v1.8.0](https://img.shields.io/badge/v1.8.0-409EFF?style=flat-square&labelColor=ECF5FF) | - | - | Task assignee name, automatically obtained from the label in the bound `assigneeOptions` dataset; for custom display, you can set it in the `task-added` callback event of GanttChart. Supports single name (string) or multiple names (string array) |
| `avatar` | `string` \| `string[]` ![v1.8.0](https://img.shields.io/badge/v1.8.0-409EFF?style=flat-square&labelColor=ECF5FF) | - | - | Avatar URL of task assignee. Supports single avatar (string) or multiple avatars (string array) |
| `estimatedHours` | `number` | - | - | Estimated hours |
| `actualHours` | `number` | - | - | Actual hours |
| `parentId` | `number` | - | - | Parent task ID, used for task grouping |
| `children` | `Task[]` | - | - | Array of child tasks |
| `collapsed` | `boolean` | - | `false` | Whether child tasks are collapsed |
| `isParent` | `boolean` | - | - | Whether this is a parent task |
| `type` | `string` | - | - | Task type, 'milestone' for milestone, 'milestone-group' for milestone group |
| `description` | `string` | - | - | Task description |
| `icon` | `string` | - | `'diamond'` | Task icon (for milestones), options: 'diamond', 'flag', 'star', 'rocket', etc. |
| `level` | `number` | - | `0` | Task level (auto-calculated) |
| `isTimerRunning` | `boolean` | - | `false` | Whether timer is running |
| `timerStartTime` | `number` | - | - | Timer start time (timestamp) |
| `timerEndTime` | `number` | - | - | Timer end time (timestamp) |
| `timerStartDesc` | `string` | - | - | Description filled when timer starts |
| `timerElapsedTime` | `number` | - | `0` | Elapsed time (milliseconds) |
| `isEditable` | `boolean` | - | `true` | Whether individual task is editable (draggable, resizable), overrides global `allowDragAndResize` |
| `[key: string]` | `unknown` | - | - | Supports custom property extensions, can add any additional fields |
> **Custom Property Extensions**: The Task interface supports adding arbitrary custom fields, such as: `priority`, `tags`, `status`, `department`, and other business-related fields.
>
> **Predecessor Field Notes**:
>
> - **Standard format** (recommended): `predecessor: [1, 2, 3]` - number array
> **Compatible format 1**: `predecessor: '1,2,3'` - comma-separated string
> - **Compatible format 2**: `predecessor: ['1', '2', '3']` - string array
> - Component will automatically parse all formats into number array
> - No predecessors: use empty array `[]`, empty string `''`, or don't set this field
#### Task-Related Props
| Prop | Type | Default | Description |
| --------------------- | ---------------- | ----------- | --------------------------------------------------------------------------------------------- |
| `tasks` | `Task[]` | `[]` | Array of task data |
| `useDefaultDrawer` | `boolean` | `true` | Whether to use built-in task edit drawer (TaskDrawer) |
| `taskBarConfig` | `TaskBarConfig` | `{}` | Task bar style configuration, see [TaskBarConfig Configuration](#taskbarconfig-configuration) |
| `taskListConfig` | `TaskListConfig` | `undefined` | Task list configuration, see [TaskListConfig Configuration](#tasklistconfig-configuration) |
| `autoSortByStartDate` | `boolean` | `false` | Whether to automatically sort tasks by start date |
| `enableTaskRowMove` | `boolean` | `false` | Whether to alloww dragging and dropping TaskRow |
| `assigneeOptions` | `Array<{ key?: string \| number; value: string \| number; label: string }>` | `[]` | Assignee dropdown options in task edit drawer |
| `taskListColumnRenderMode` | `'default' \| 'declarative'` | `'default'` | Task list column render mode. `'default'`: Use TaskListColumnConfig configuration (compatibility mode, will be gradually deprecated); `'declarative'`: Use TaskListColumn component for declarative column definition (recommended). See [TaskListColumn Declarative Column Definition](#tasklistcolumn-declarative-column-definition) |
| `taskListRowClassName` | `string \| ((task: Task) => string)` | `undefined` | Custom CSS class name for task rows. Can be a string or a function that returns a string. **Note**: Row height is managed internally by the component, custom height styles will not take effect |
| `taskListRowStyle` | `CSSProperties \| ((task: Task) => CSSProperties)` | `undefined` | Custom inline styles for task rows. Can be a style object or a function that returns a style object. **Note**: Row height and width are managed internally by the component, custom width/height styles will not take effect |
**Configuration Notes**:
- **Default mode**: `useDefaultDrawer=true` (default), double-click task to auto-open built-in TaskDrawer
- **Custom editor**: `useDefaultDrawer=false` disables built-in drawer, listen to `@task-double-click` event to open custom editor
- **Read-only mode**: `useDefaultDrawer=false` and don't listen to `@task-double-click` event, user double-click task has no response
#### Task Events
> **💡 Event-Driven Architecture**: Component adopts pure event-driven design. All user operations (add, edit, delete, drag, etc.) will trigger corresponding events for easy external listening and handling.
| Event Name | Parameters | When Triggered | Description |
| -------------------- | ----------------------------------------- | ----------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `add-task` | - | When clicking toolbar "Add Task" button | Can be used for custom add task logic. If `useDefaultDrawer=true`, component will auto-open built-in TaskDrawer |
| `task-click` | `(task: Task, event: MouseEvent) => void` | When clicking task bar | Triggered on single-click task |
| `task-double-click` | `(task: Task) => void` | When double-clicking task bar | Double-click task **always triggers**. When `useDefaultDrawer=true`, component will additionally open built-in editor; when `false`, won't open. Event triggering is independent of property value |
| `task-added` | `{ task: Task }` | After task added | Triggered after adding task via built-in TaskDrawer. **Note**: Component has auto-updated `tasks` data, external only needs to listen to this event for additional processing (like calling API to save) |
| `task-updated` | `{ task: Task }` | After task updated | Triggered after updating task via built-in TaskDrawer or drag. **Note**: Component has auto-updated `tasks` data, external only needs to listen to this event for additional processing |
| `task-deleted` | `{ task: Task }` | After task deleted | Triggered after deleting task via built-in TaskDrawer. **Note**: Component has auto-updated `tasks` data, external only needs to listen to this event for additional processing |
| `taskbar-drag-end` | `(task: Task) => void` | When task bar drag ends | Task position changed, startDate and endDate updated. **Note**: Component has auto-updated `tasks` data |
| `taskbar-resize-end` | `(task: Task) => void` | When task bar resize ends | Task duration changed, endDate updated. **Note**: Component has auto-updated `tasks` data |
| `predecessor-added` | `{ targetTask: Task, newTask: Task }` | After adding predecessor via context menu | `targetTask` is the task to which predecessor is added, `newTask` is the newly created predecessor task |
| `successor-added` | `{ targetTask: Task, newTask: Task }` | After adding successor via context menu | `targetTask` is the original task, `newTask` is the newly created successor task (its predecessor already contains targetTask.id) |
| `timer-started` | `(task: Task) => void` | When task timer starts | Start recording task hours |
| `timer-stopped` | `(task: Task) => void` | When task timer stops | Stop recording task hours |
| `task-row-moved` | `payload: { draggedTask: Task, targetTask: Task, position: 'after' \| 'child', oldParent: Task \| null, newParent: Task \| null }` | TaskRow drag ended (optional) | Component has automatically completed data movement and TaskList/Timeline sync via object reference mutation. Listening to this event is completely optional, only for showing messages, calling API, etc. `position`: 'after'=same level, 'child'=as child |
**Data Synchronization Notes**:
-**Component auto-updates internally**: For all task CRUD operations, component will auto-update `props.tasks` data
-**Events are for notification only**: External event listeners are mainly for: showing messages, calling backend APIs, updating other related data, etc.
-**Avoid duplicate operations**: Don't modify `tasks` data again in event handlers, otherwise it will cause duplicate updates
#### Example 1: Basic Task Operations
```vue
<template>
<div style="height: 600px;">
<GanttChart
:tasks="tasks"
:assignee-options="assigneeOptions"
@add-task="handleAddTask"
@task-added="handleTaskAdded"
@task-updated="handleTaskUpdated"
@task-deleted="handleTaskDeleted"
@task-click="handleTaskClick"
@taskbar-drag-end="handleTaskDragEnd"
/>
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import type { Task } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
const tasks = ref<Task[]>([
{
id: 1,
name: 'Project Planning',
startDate: '2025-01-01',
endDate: '2025-01-10',
progress: 100,
assignee: 'Alice',
estimatedHours: 40,
},
{
id: 2,
name: 'Requirements Analysis',
startDate: '2025-01-11',
endDate: '2025-01-20',
progress: 60,
assignee: 'Bob',
predecessor: [1], // Depends on task 1
},
])
const assigneeOptions = ref([
{ value: 'alice', label: 'Alice' },
{ value: 'bob', label: 'Bob' },
{ value: 'charlie', label: 'Charlie' },
])
// Toolbar "Add Task" button click event
const handleAddTask = () => {
console.log('Preparing to add task...')
// Component will auto-open TaskDrawer (if useDefaultDrawer=true)
// Can also execute custom logic here, like showing messages
}
// Task add event (added via built-in drawer)
const handleTaskAdded = (e: { task: Task }) => {
console.log('Task added:', e.task)
// Note: Component has auto-added task to tasks array
// Only need to call backend API to save here
// await api.createTask(e.task)
}
// Task update event (updated via built-in drawer or drag)
const handleTaskUpdated = (e: { task: Task }) => {
console.log('Task updated:', e.task)
// Note: Component has auto-updated task data in tasks array
// Only need to call backend API to update here
// await api.updateTask(e.task.id, e.task)
}
// Task delete event
const handleTaskDeleted = (e: { task: Task }) => {
console.log('Task deleted:', e.task)
// Note: Component has auto-removed task from tasks array
// Only need to call backend API to delete here
// await api.deleteTask(e.task.id)
}
// Task click event
const handleTaskClick = (task: Task) => {
console.log('Clicked task:', task.name)
}
// Task drag end event
const handleTaskDragEnd = (task: Task) => {
console.log('Task drag completed, new dates:', task.startDate, 'to', task.endDate)
// Can call backend API here to save new dates
}
</script>
```
#### Example 2: Task Dependencies (Predecessors/Successors)
Tasks can configure predecessors via the `predecessor` field, and the component will automatically draw dependency lines:
```vue
<template>
<GanttChart
:tasks="tasks"
:assignee-options="assigneeOptions"
@predecessor-added="handlePredecessorAdded"
@successor-added="handleSuccessorAdded"
/>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import type { Task } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
const tasks = ref<Task[]>([
{
id: 1,
name: 'Requirements Analysis',
startDate: '2025-01-01',
endDate: '2025-01-10',
progress: 100,
predecessor: [], // No predecessors
},
{
id: 2,
name: 'System Design',
startDate: '2025-01-11',
endDate: '2025-01-20',
progress: 80,
predecessor: [1], // Depends on task 1 (Requirements Analysis)
},
{
id: 3,
name: 'Database Design',
startDate: '2025-01-11',
endDate: '2025-01-18',
progress: 90,
predecessor: [1], // Depends on task 1
},
{
id: 4,
name: 'Frontend Development',
startDate: '2025-01-21',
endDate: '2025-02-10',
progress: 60,
predecessor: [2], // Depends on task 2 (System Design)
},
{
id: 5,
name: 'Backend Development',
startDate: '2025-01-19',
endDate: '2025-02-08',
progress: 70,
predecessor: [2, 3], // Depends on both task 2 and 3
},
{
id: 6,
name: 'Integration Testing',
startDate: '2025-02-11',
endDate: '2025-02-20',
progress: 30,
predecessor: [4, 5], // Depends on frontend and backend development completion
},
])
const assigneeOptions = ref([
{ value: 'alice', label: 'Alice' },
{ value: 'bob', label: 'Bob' },
{ value: 'charlie', label: 'Charlie' },
])
// Triggered when adding predecessor via context menu
const handlePredecessorAdded = (event: { targetTask: Task; newTask: Task }) => {
console.log(`Task [${event.targetTask.name}] added predecessor [${event.newTask.name}]`)
// Component will auto-update targetTask's predecessor array (append new task ID)
// Can call backend API here to save dependency relationship
// await api.addTaskDependency(event.targetTask.id, event.newTask.id)
}
// Triggered when adding successor via context menu
const handleSuccessorAdded = (event: { targetTask: Task; newTask: Task }) => {
console.log(`Task [${event.targetTask.name}] added successor [${event.newTask.name}]`)
// Component will auto-update newTask's predecessor array (add targetTask.id)
// Can call backend API here to save dependency relationship
// await api.addTaskDependency(event.newTask.id, event.targetTask.id)
}
</script>
```
**Dependency Relationship Notes**:
- **`predecessor` field supports multiple formats**:
- Standard format (recommended): `[1, 2, 3]` - number array
- Compatible format 1: `'1,2,3'` - comma-separated string
- Compatible format 2: `['1', '2', '3']` - string array
- Component will automatically parse all formats
- Predecessor task: Task that must be completed first (e.g., design must be done before development)
- Successor task: Task that depends on current task (current task is a predecessor for other tasks)
- Component will automatically draw dependency lines from predecessor tasks to dependent tasks
- Can add/delete predecessor and successor tasks via built-in context menu
- When deleting tasks via built-in menu, component will automatically clean up related dependency references
- No predecessors: use empty array `[]`, empty string `''`, or don't set `predecessor` field
#### Example 3: Hide Toolbar, Use Custom Buttons to Trigger Events
Suitable for scenarios requiring complete custom control bar:
```vue
<template>
<div>
<!-- Custom control bar -->
<div class="custom-toolbar">
<button @click="triggerAddTask">Add Task</button>
<button @click="triggerAddMilestone">Add Milestone</button>
<!-- Other custom buttons... -->
</div>
<!-- Gantt chart component with hidden built-in toolbar -->
<GanttChart
:tasks="tasks"
:milestones="milestones"
:show-toolbar="false"
:use-default-drawer="true"
:use-default-milestone-dialog="true"
:assignee-options="assigneeOptions"
@add-task="handleAddTask"
@add-milestone="handleAddMilestone"
@task-added="handleTaskAdded"
/>
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
const tasks = ref([])
const milestones = ref([])
const assigneeOptions = ref([
{ value: 'alice', label: 'Alice' },
{ value: 'bob', label: 'Bob' },
{ value: 'charlie', label: 'Charlie' },
])
// Custom button triggers event (component will respond and open built-in editor)
const triggerAddTask = () => {
// Directly trigger component's add-task event
// Since useDefaultDrawer=true, component will auto-open TaskDrawer
}
const triggerAddMilestone = () => {
// Directly trigger component's add-milestone event
// Since useDefaultMilestoneDialog=true, component will auto-open MilestoneDialog
}
// Listen to event handling logic
const handleAddTask = () => {
console.log('Preparing to add task (triggered by custom button)')
}
const handleAddMilestone = () => {
console.log('Preparing to add milestone (triggered by custom button)')
}
const handleTaskAdded = e => {
console.log('Task added:', e.task)
// Call API to save...
}
</script>
```
> **💡 Flexibility Design**:
>
> - Show toolbar + default editor: Simplest out-of-the-box approach
> - Hide toolbar + custom buttons + default editor: Custom control bar style while keeping default edit functionality
> - Hide toolbar + custom buttons + custom editor: Fully customize all interaction logic
#### Example 4: Task Row Drag and Drop Sorting
Allow users to adjust task hierarchy and order by dragging TaskRow:
```vue
<template>
<div style="height: 600px;">
<GanttChart
:tasks="tasks"
:enable-task-row-move="true"
:assignee-options="assigneeOptions"
@task-row-moved="handleTaskRowMoved"
/>
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import type { Task } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
const tasks = ref<Task[]>([
{
id: 1,
name: 'Project Planning',
startDate: '2025-01-01',
endDate: '2025-01-10',
progress: 100,
},
{
id: 2,
name: 'Requirements Analysis',
startDate: '2025-01-11',
endDate: '2025-01-20',
progress: 60,
parentId: 1,
},
{
id: 3,
name: 'System Design',
startDate: '2025-01-21',
endDate: '2025-01-30',
progress: 40,
},
])
const assigneeOptions = ref([
{ value: 'alice', label: 'Alice' },
{ value: 'bob', label: 'Bob' },
{ value: 'charlie', label: 'Charlie' },
])
// Task row drag completed event (optional)
const handleTaskRowMoved = async (payload: {
draggedTask: Task
targetTask: Task
position: 'after' | 'child'
oldParent: Task | null
newParent: Task | null
}) => {
const { draggedTask, targetTask, position, oldParent, newParent } = payload
// Component has automatically completed task move, parentId update and TaskList/Timeline sync
// Listening to this event is completely optional, only for:
// 1. Show custom notification message
const oldParentName = oldParent?.name || 'Root'
const newParentName = newParent?.name || 'Root'
const positionText = position === 'after' ? 'after target task' : 'as child of target task'
showMessage(`Task [${draggedTask.name}] moved from [${oldParentName}] to [${newParentName}] (${positionText})`, 'success')
// 2. Call backend API to save new task hierarchy
try {
await api.updateTaskHierarchy({
taskId: draggedTask.id,
targetTaskId: targetTask.id,
position: position,
oldParentId: oldParent?.id,
newParentId: newParent?.id,
})
} catch (error) {
console.error('Save task hierarchy failed:', error)
showMessage('Save failed, please refresh page', 'error')
}
// 3. Trigger other business logic (like updating related data, recording operation logs, etc.)
// ...
}
</script>
```
**Drag and Drop Sorting Notes**:
- **Enable Dragging**: Set `enable-task-row-move="true"` to enable task row dragging (default is `false`)
- **Dragging Algorithms** (automatically executed by component):
- **Algorithm 1 (Place After)**: When target task has no children, dragged task will be placed after target task (same level), `position='after'`
- **Algorithm 2 (As Child)**: When target task has children, dragged task will become first child of target task, `position='child'`
- **Visual Feedback**:
- Semi-transparent following element displayed while dragging
- Blue border hint shown when hovering over valid target tasks
- Tasks without children show blue bottom border
- Tasks with children show blue border on all sides
- **Auto Sync**: Component internally mutates `props.tasks` via object reference, automatically completing task move, `parentId` update, `children` array adjustment, and TaskList/Timeline synchronization
- **Event Listening (Optional)**:
- `task-row-moved` event is completely optional, only used for showing messages, calling API to save, recording logs, etc.
- No need to manually update `tasks.value`, component has automatically completed data synchronization
- **Event Parameters**:
- `draggedTask`: The dragged task
- `targetTask`: The target task
- `position`: Drop position ('after' or 'child')
- `oldParent`: Original parent task (null means root)
- `newParent`: New parent task (null means root)
- **Constraints**:
- Cannot drag onto itself
- Cannot drag onto its own child tasks (avoid circular reference)
- Milestones and milestone groups cannot be dragged
### Resource Management ![v1.9.0](https://img.shields.io/badge/v1.9.0-409EFF?style=flat-square&labelColor=ECF5FF)
Resource management is used to manage human resources or equipment in a project, supporting task allocation, resource load analysis, and conflict detection in resource view. Switch to resource planning view using the `viewMode="resource"` prop.
> **Core Features**:
> - 📊 **Resource View**: Display task allocation by resource dimension
> - 🎯 **Load Analysis**: Real-time display of resource utilization and overload status
> - ⚠️ **Conflict Detection**: Automatically detect resource time conflicts (e.g., Task A:40% + Task B:40% + Task C:30% = 110% overload)
> - 🎨 **Visualization**: Diagonal stripe background marks conflict zones, resource tabs show utilization percentage
> - 🔄 **Cross-Resource Move**: Support dragging tasks to different resource rows for reallocation
>
> **View Limitations**:
> - ❌ **Task Links Disabled**: Resource view does not display predecessor/successor relationship lines between tasks, as resource view focuses on resource allocation rather than task dependencies
> - ❌ **No Actual TaskBar**: `showActualTaskbar` prop has no effect in resource view, actual execution progress bar will not be displayed
#### Resource Data Structure
| Field | Type | Required | Default | Description |
| --------------- | ------------------- | -------- | ------- | ----------------------------------------------------------------------------------------------------------- |
| `id` | `string \| number` | ✅ | - | Unique resource identifier |
| `name` | `string` | ✅ | - | Resource name (e.g., person name, device name) |
| `type` | `string` | - | - | Resource type (e.g., 'developer', 'designer', 'device') |
| `avatar` | `string` | - | - | Resource avatar URL |
| `description` | `string` | - | - | Resource description |
| `department` | `string` | - | - | Department |
| `skills` | `string[]` | - | - | Skill tags array (e.g., `['Vue', 'React', 'TypeScript']`) |
| `capacity` | `number` | - | - | Resource capacity/utilization (0-100), can represent overall load level |
| `color` | `string` | - | - | Custom resource row left border color (e.g., `'#ff5733'`), uses default color scheme if not set |
| `tasks` | `Task[]` | - | `[]` | Array of tasks assigned to this resource, **each task needs `resources` field to mark resource utilization** |
| `[key: string]` | `unknown` | - | - | Support custom property extension, can add any additional fields |
> **Custom Property Extension**: Resource interface supports adding any custom fields, e.g., `email`, `phone`, `location`, `workHours`, etc.
>
> **Task-Resource Association**:
>
> - Each Resource contains a `tasks` array storing tasks assigned to that resource
> - Each Task should include a `resources` field marking which resources are used and their utilization percentage
> - Resource utilization format: `task.resources = [{ id: 'resource1', capacity: 60 }, { id: 'resource2', capacity: 40 }]`
> - `capacity` range: 20-100, representing the percentage of resource used by that task
> - Conflict detection: When multiple tasks' `capacity` sum > 100% for the same resource in the same time period, a conflict warning is displayed
**Resource Data Example**:
```typescript
import type { Resource, Task } from 'jordium-gantt-vue3'
const resources: Resource[] = [
{
id: 'dev-001',
name: 'Zhang San',
type: 'developer',
avatar: '/avatars/zhangsan.jpg',
department: 'R&D',
skills: ['Vue', 'TypeScript', 'Node.js'],
capacity: 85, // Overall load level
color: '#409eff',
tasks: [
{
id: 1,
name: 'Frontend Development',
startDate: '2026-02-01',
endDate: '2026-02-10',
progress: 50,
resources: [
{ id: 'dev-001', capacity: 60 }, // This task uses 60% of Zhang San's time
{ id: 'dev-002', capacity: 40 } // Also uses 40% of Li Si's time
]
},
{
id: 2,
name: 'Code Review',
startDate: '2026-02-05',
endDate: '2026-02-08',
progress: 0,
resources: [
{ id: 'dev-001', capacity: 40 } // This task uses 40% of Zhang San's time
]
}
// Note: If two tasks overlap, Zhang San's total utilization on Feb 5-8 is 100% (60%+40%), at threshold
]
},
{
id: 'dev-002',
name: 'Li Si',
type: 'developer',
avatar: '/avatars/lisi.jpg',
department: 'R&D',
skills: ['React', 'TypeScript'],
tasks: []
}
]
```
**Resource Conflict Detection Example**:
```typescript
// Scenario: Zhang San is assigned 3 tasks in the same time period
const resource = {
id: 'dev-001',
name: 'Zhang San',
tasks: [
{
id: 1,
name: 'Task A',
startDate: '2026-02-10',
endDate: '2026-02-15',
resources: [{ id: 'dev-001', capacity: 40 }] // Uses 40%
},
{
id: 2,
name: 'Task B',
startDate: '2026-02-10',
endDate: '2026-02-20',
resources: [{ id: 'dev-001', capacity: 40 }] // Uses 40%
},
{
id: 3,
name: 'Task C',
startDate: '2026-02-12',
endDate: '2026-02-18',
resources: [{ id: 'dev-001', capacity: 30 }] // Uses 30%
}
]
}
// Conflict Analysis:
// - Feb 10-11: A(40%) + B(40%) = 80%, not overloaded
// - Feb 12-15: A(40%) + B(40%) + C(30%) = 110%, overloaded! Shows conflict warning
// - Feb 16-18: B(40%) + C(30%) = 70%, not overloaded
// - Feb 19-20: B(40%), not overloaded
```
#### Resource-Related Props
| Prop | Type | Default | Description |
| --------------------- | ---------------------- | ------------ | -------------------------------------------------------------------------------------------------------- |
| `resources` | `Resource[]` | `[]` | Array of resource data |
| `viewMode` | `'task' \| 'resource'` | `'task'` | View mode: 'task' for task planning view, 'resource' for resource planning view |
| `resourceListConfig` | `ResourceListConfig` | `undefined` | Resource list configuration, similar to TaskListConfig, for configuring resource list columns, width etc |
| `showConflicts` | `boolean` | `true` | Whether to display resource conflict visualization layer (diagonal stripe background in resource view) |
| `showTaskbarTab` | `boolean` | `true` | Whether to display resource tab on TaskBar (resource utilization label on TaskBar in resource view) |
#### Resource Events
| Event Name | Parameters | Trigger Timing | Description |
| -------------------------- | -------------------------------------------------------------------------------------------- | ------------------------------ | -------------------------------------------------------------------------------------------------- |
| `taskbar-resource-change` | `payload: { task: Task, oldResourceId: string \| number, newResourceId: string \| number }` | When task drag across resources | Triggered when dragging task to another resource row in resource view, component auto-updates task's `resources` field |
**Data Sync Notes**:
-**Auto Update**: Resource-related operations (like task cross-resource move) are automatically updated by the component in `props.resources` and task's `resources` field
-**Events for Notification**: External event listeners are mainly used for: showing messages, calling backend APIs, updating other related data, etc.
-**Avoid Duplicate Operations**: Do not modify data again in event handlers, as this causes duplicate updates
#### Example: Basic Resource View Usage
```vue
<template>
<div style="height: 600px;">
<GanttChart
:resources="resources"
view-mode="resource"
:show-conflicts="true"
:show-taskbar-tab="true"
@taskbar-resource-change="handleTaskbarResourceChange"
/>
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import type { Resource } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
const resources = ref<Resource[]>([
{
id: 'dev-001',
name: 'Zhang San',
type: 'developer',
department: 'R&D',
tasks: [
{
id: 1,
name: 'Frontend Development',
startDate: '2026-02-01',
endDate: '2026-02-10',
progress: 50,
resources: [{ id: 'dev-001', capacity: 60 }]
}
]
}
])
const handleTaskbarResourceChange = (payload: any) => {
console.log('Task resource changed:', payload)
// Call backend API to save resource allocation change
// api.updateTaskResource(payload.task.id, payload.newResourceId)
}
</script>
```
### Milestone Management
Milestones are used to mark important time points in a project, such as project kickoff, phase completion, product release, etc. The component provides flexible milestone editing configuration, using the built-in MilestoneDialog by default, and also supports fully custom editing behavior.
> **Note**: Milestones and tasks are independent data collections with no direct association. Milestones are managed independently through the `milestones` prop.
#### Milestone Data Structure
| Field | Type | Required | Default | Description |
| ------------- | -------- | -------- | ------------- | --------------------------------------------------------------------------- |
| `id` | `number` | ✅ | - | Unique milestone identifier |
| `name` | `string` | ✅ | - | Milestone name |
| `startDate` | `string` | ✅ | - | Milestone date, format: 'YYYY-MM-DD' or 'YYYY-MM-DD HH:mm' |
| `endDate` | `string` | - | - | End date (usually not needed for milestones, auto-set to same as startDate) |
| `assignee` | `string` | - | - | Assignee |
| `type` | `string` | ✅ | `'milestone'` | Type identifier, must be set to 'milestone' |
| `icon` | `string` | - | `'diamond'` | Milestone icon, options: 'diamond', 'flag', 'star', 'rocket', etc. |
| `description` | `string` | - | - | Milestone description |
> **Note**: The `milestones` prop type is `Task[]`, ensure each milestone object's `type` field is set to `'milestone'`.
#### Milestone-Related Props
| Prop | Type | Default | Description |
| --------------------------- | --------- | ------- | ----------------------------------------------------------------- |
| `milestones` | `Task[]` | `[]` | Array of milestone data (type is Task[], ensure type='milestone') |
| `useDefaultMilestoneDialog` | `boolean` | `true` | Whether to use built-in milestone edit dialog (MilestoneDialog) |
**Configuration Notes**:
- **Default mode**: `useDefaultMilestoneDialog=true` (default), double-click milestone to auto-open built-in MilestoneDialog
- **Disable editor**: `useDefaultMilestoneDialog=false`, double-click milestone has no response (component doesn't open any editor)
- **Custom editor**: Can listen to `onMilestoneDoubleClick` callback or related events to implement custom editing logic
> **💡 Differences Between Milestones and Tasks**:
>
> - Milestone data is managed independently via `milestones` prop, separate from `tasks`
> - Milestone object's `type` field must be set to `'milestone'`
> - Milestones don't support child tasks, dependency relationships, and other complex structures
> - Milestones are mainly used to mark key time points
#### Milestone Callbacks (Backward Compatible)
> **⚠️ Deprecated**: Please use the new event-driven API (see "Milestone Events" section below)
#### Milestone Events
> **💡 Event-Driven Architecture**: Milestone management adopts event-driven design. Using event API is recommended over callback functions.
| Event Name | Parameters | When Triggered | Description |
| ------------------------ | --------------------------------------- | -------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `add-milestone` | - | When clicking toolbar "Add Milestone" button | Can be used for custom add milestone logic. If `useDefaultMilestoneDialog=true`, component will auto-open built-in MilestoneDialog |
| `milestone-saved` | `(milestone: Task) => void` | After milestone saved (add or edit) | Triggered after saving milestone via built-in MilestoneDialog. **Note**: Component has auto-updated `milestones` data, external only needs to listen to this event for additional processing (like calling API to save) |
| `milestone-deleted` | `{ milestoneId: number }` | After milestone deleted | Triggered after deleting milestone via built-in MilestoneDialog. **Note**: Component has auto-updated `milestones` data, external only needs to listen to this event for additional processing |
| `milestone-icon-changed` | `{ milestoneId: number, icon: string }` | After milestone icon changed | Triggered after modifying icon via built-in MilestoneDialog |
| `milestone-drag-end` | `(milestone: Task) => void` | When milestone drag ends | Milestone date updated. **Note**: Component has auto-updated `milestones` data |
**Data Synchronization Notes**:
-**Component auto-updates internally**: For all milestone CRUD operations, component will auto-update `props.milestones` data
-**Events are for notification only**: External event listeners are mainly for: showing messages, calling backend APIs, updating other related data, etc.
-**Avoid duplicate operations**: Don't modify `milestones` data again in event handlers, otherwise it will cause duplicate updates
#### Example 1: Using Event-Driven API (Recommended)
Using the new event API, component auto-manages data, more concise:
```vue
<template>
<div style="height: 600px;">
<GanttChart
:milestones="milestones"
@add-milestone="handleAddMilestone"
@milestone-saved="handleMilestoneSaved"
@milestone-deleted="handleMilestoneDeleted"
@milestone-icon-changed="handleMilestoneIconChanged"
@milestone-drag-end="handleMilestoneDrag"
/>
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import type { Task } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
const milestones = ref<Task[]>([
{
id: 101,
name: 'Project Kickoff',
startDate: '2025-01-01',
type: 'milestone',
icon: 'diamond',
assignee: 'Project Manager',
description: 'Official project kickoff',
},
{
id: 102,
name: 'Requirements Review',
startDate: '2025-01-15',
type: 'milestone',
icon: 'flag',
},
])
// Toolbar "Add Milestone" button click event
const handleAddMilestone = () => {
console.log('Preparing to add milestone...')
// Component will auto-open MilestoneDialog (if useDefaultMilestoneDialog=true)
}
// Milestone save event (add or edit)
const handleMilestoneSaved = (milestone: Task) => {
console.log('Milestone saved:', milestone)
// Note: Component has auto-updated milestones array
// Only need to call backend API to save here
// await api.saveMilestone(milestone)
}
// Milestone delete event
const handleMilestoneDeleted = (e: { milestoneId: number }) => {
console.log('Milestone deleted, ID:', e.milestoneId)
// Note: Component has auto-removed from milestones array
// Only need to call backend API to delete here
// await api.deleteMilestone(e.milestoneId)
}
// Milestone icon change event
const handleMilestoneIconChanged = (e: { milestoneId: number; icon: string }) => {
console.log('Milestone icon changed:', e.milestoneId, '->', e.icon)
// Component has auto-updated icon, can call API to save here
// await api.updateMilestoneIcon(e.milestoneId, e.icon)
}
// Milestone drag end event
const handleMilestoneDrag = (milestone: Task) => {
console.log('Milestone drag completed, new date:', milestone.startDate)
// Component has auto-updated date, can call API to save here
// await api.updateMilestoneDate(milestone.id, milestone.startDate)
}
</script>
```
#### Example 2: Using Custom Milestone Edit Dialog
If you need to fully customize the milestone editing interface, you can disable the built-in dialog and use your own component:
```vue
<template>
<div style="height: 600px;">
<GanttChart
:milestones="milestones"
:use-default-milestone-dialog="false"
@add-milestone="handleAddMilestone"
@milestone-saved="handleMilestoneSaved"
@milestone-deleted="handleMilestoneDeleted"
@milestone-drag-end="handleMilestoneDrag"
/>
<!-- Custom Milestone Edit Dialog -->
<CustomMilestoneDialog
v-model:visible="customDialogVisible"
:milestone="editingMilestone"
:is-new="isNewMilestone"
@save="handleCustomDialogSave"
@delete="handleCustomDialogDelete"
/>
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
import CustomMilestoneDialog from './CustomMilestoneDialog.vue'
import type { Task } from 'jordium-gantt-vue3'
const milestones = ref<Task[]>([
{
id: 101,
name: 'Project Kickoff',
startDate: '2025-01-01',
type: 'milestone',
icon: 'diamond',
assignee: 'Project Manager',
description: 'Official project kickoff',
},
])
const customDialogVisible = ref(false)
const editingMilestone = ref<Task | null>(null)
const isNewMilestone = ref(false)
// Click toolbar "Add Milestone" button
const handleAddMilestone = () => {
editingMilestone.value = null
isNewMilestone.value = true
customDialogVisible.value = true
}
// Open custom dialog when double-clicking milestone
// Note: Need to listen to Timeline component milestone double-click event
// or trigger edit via external button/list item
const openEditDialog = (milestone: Task) => {
editingMilestone.value = { ...milestone }
isNewMilestone.value = false
customDialogVisible.value = true
}
// Custom dialog save event
const handleCustomDialogSave = (milestone: Task) => {
if (isNewMilestone.value) {
// Add milestone
const newMilestone = {
...milestone,
id: Date.now(), // Generate new ID
type: 'milestone',
}
milestones.value.push(newMilestone)
// Call backend API to save
// await api.createMilestone(newMilestone)
} else {
// Update existing milestone
const index = milestones.value.findIndex(m => m.id === milestone.id)
if (index !== -1) {
milestones.value[index] = { ...milestone }
}
// Call backend API to update
// await api.updateMilestone(milestone)
}
customDialogVisible.value = false
}
// Custom dialog delete event
const handleCustomDialogDelete = (milestoneId: number) => {
const index = milestones.value.findIndex(m => m.id === milestoneId)
if (index !== -1) {
milestones.value.splice(index, 1)
}
// Call backend API to delete
// await api.deleteMilestone(milestoneId)
customDialogVisible.value = false
}
// Following event handlers are still valid (for drag operations, etc.)
const handleMilestoneSaved = (milestone: Task) => {
console.log('Milestone saved (via other method):', milestone)
}
const handleMilestoneDeleted = (e: { milestoneId: number }) => {
console.log('Milestone deleted (via other method):', e.milestoneId)
}
const handleMilestoneDrag = (milestone: Task) => {
console.log('Milestone drag completed:', milestone.startDate)
// Call API to update date
// await api.updateMilestoneDate(milestone.id, milestone.startDate)
}
</script>
```
**Custom Dialog Component Example** (`CustomMilestoneDialog.vue` - Using Element Plus)
> **Note**: The following examplesUsing Element Plus UI framework. You can also use other UI frameworks (such as Ant Design Vue, Naive UI, etc.) or native HTML implementation.
```vue
<template>
<el-dialog
v-model="dialogVisible"
:title="isNew ? 'Add milestone' : 'Edit Milestone'"
width="500px"
@close="handleClose"
>
<el-form :model="form" label-width="100px">
<el-form-item label="Milestone Name">
<el-input v-model="form.name" placeholder="Please enter milestone name" />
</el-form-item>
<el-form-item label="Date">
<el-date-picker
v-model="form.startDate"
type="date"
placeholder="Select date"
value-format="YYYY-MM-DD"
/>
</el-form-item>
<el-form-item label="Assignee">
<el-input v-model="form.assignee" placeholder="Please enter assignee" />
</el-form-item>
<el-form-item label="Icon">
<el-select v-model="form.icon" placeholder="Select icon">
<el-option label="Diamond" value="diamond" />
<el-option label="Flag" value="flag" />
<el-option label="Star" value="star" />
<el-option label="Rocket" value="rocket" />
</el-select>
</el-form-item>
<el-form-item label="Description">
<el-input
v-model="form.description"
type="textarea"
:rows="3"
placeholder="Please enter description"
/>
</el-form-item>
</el-form>
<template #footer>
<div class="dialog-footer">
<el-button v-if="!isNew" type="danger" @click="handleDelete"> Delete </el-button>
<el-button @click="handleClose">Cancel</el-button>
<el-button type="primary" @click="handleSave">Save</el-button>
</div>
</template>
</el-dialog>
</template>
<script setup lang="ts">
import { ref, watch } from 'vue'
import type { Task } from 'jordium-gantt-vue3'
interface Props {
visible: boolean
milestone: Task | null
isNew: boolean
}
const props = defineProps<Props>()
const emit = defineEmits<{
'update:visible': [value: boolean]
save: [milestone: Task]
delete: [milestoneId: number]
}>()
const dialogVisible = ref(false)
const form = ref({
id: 0,
name: '',
startDate: '',
assignee: '',
icon: 'diamond',
description: '',
type: 'milestone',
})
watch(
() => props.visible,
val => {
dialogVisible.value = val
if (val) {
if (props.milestone) {
// Edit mode, fill data
form.value = { ...props.milestone }
} else {
// Add mode, reset form
form.value = {
id: 0,
name: '',
startDate: new Date().toISOString().split('T')[0],
assignee: '',
icon: 'diamond',
description: '',
type: 'milestone',
}
}
}
}
)
watch(dialogVisible, val => {
emit('update:visible', val)
})
const handleClose = () => {
dialogVisible.value = false
}
const handleSave = () => {
if (!form.value.name || !form.value.startDate) {
alert('Please fill required fields')
return
}
emit('save', { ...form.value })
}
const handleDelete = () => {
if (confirm('Are you sure to delete this milestone?')) {
emit('delete', form.value.id)
}
}
</script>
```
> **💡 Custom Dialog Notes**:
>
> - Set `use-default-milestone-dialog="false"` to disable built-in dialog
> - Listen to `@add-milestone` event to open custom dialog
> - Need to manually manage `milestones` array CRUD operations
> - Can still listen to other events (like `@milestone-drag-end`) to handle drag operations
> - Suitable for scenarios requiring complex form validation, special UI design, or additional fields
---
## ⚙️ Configuration & Customization
This section details the configuration options and extension capabilities of the GanttChart component, including Component Configuration, Theme & Internationalization, and Custom Extensions.
### Task Type Definition
Task type (`type` field) is used to distinguish different types of tasks, and the component internally executes different logic based on the type.
#### Built-in Task Types
| Type | Description | Default |
| ------- | ------------- | ------- |
| `story` | User Story | - |
| `task` | Regular Task | ✅ |
| `bug` | Bug/Issue | - |
#### Feature Differences
Different task types have different functional characteristics in the component:
| Feature | story | task | bug |
| -------------------- | ----- | ---- | --- |
| Can be parent task | ✅ | ✅ | ❌ |
| Can be predecessor | ❌ | ✅ | ❌ |
| Timer support | ❌ | ✅ | ✅ |
| Auto parent task | ✅ | ❌ | ❌ |
| Special delete hint | ✅ | ❌ | ❌ |
#### Important Notes
> ⚠️ **Important**
>
> 1. Task type values are used for internal component logic, **do not modify** these enum values arbitrarily
> 2. When customizing TaskDrawer, you must maintain these three enum values: `story`, `task`, `bug`
> 3. For additional business labels, use custom property fields such as: `customType`, `category`, `label`, etc.
**Example: Using Custom Labels**
```typescript
const tasks = ref([
{
id: 1,
name: 'Requirements Analysis',
type: 'task', // Keep built-in component type
customType: 'requirement', // Custom business type
category: 'analysis', // Custom category
startDate: '2025-01-01',
endDate: '2025-01-10',
},
])
```
### Component Configuration
#### ToolbarConfig (Toolbar Configuration)
Customize the toolbar functional buttons and time scale options.
**Type Definition:**
| Field | Type | Default | Description |
| --------------------- | ----------------- | ----------------------------------------------------- | ------------------------------------------------------------------------------------------------------------ |
| `showAddTask` | `boolean` | `true` | Show "Add Task" button |
| `showAddMilestone` | `boolean` | `true` | Show "Add Milestone" button |
| `showTodayLocate` | `boolean` | `true` | Show "Locate to Today" button |
| `showExportCsv` | `boolean` | `true` | Show "Export CSV" button |
| `showExportPdf` | `boolean` | `true` | Show "Export PDF" button |
| `showLanguage` | `boolean` | `true` | Show "Language Switch" button (Chinese/English) |
| `showTheme` | `boolean` | `true` | Show "Theme Switch" button (Light/Dark) |
| `showFullscreen` | `boolean` | `true` | Show "Fullscreen" button |
| `showTimeScale` | `boolean` | `true` | Show time scale button group (controls entire group visibility) |
| `timeScaleDimensions` | `TimelineScale[]` | `['hour', 'day', 'week', 'month', 'quarter', 'year']` | Set time scale dimensions to display, options: `'hour'`, `'day'`, `'week'`, `'month'`, `'quarter'`, `'year'` |
| `defaultTimeScale` | `TimelineScale` | `'week'` | Default selected time scale |
| `showExpandCollapse` | `boolean` | `true` | Show "Expand All/Collapse All" button (for parent-child task tree structure) |
| `showViewMode` ![v1.9.2](https://img.shields.io/badge/v1.9.2-409EFF?style=flat-square&labelColor=ECF5FF) | `boolean` | `true` | Show Task / Resource view mode toggle button group |
**TimelineScale Type Description:**
```typescript
type TimelineScale = 'hour' | 'day' | 'week' | 'month' | 'quarter' | 'year'
// Can also use constant form
import { TimelineScale } from 'jordium-gantt-vue3'
TimelineScale.HOUR // 'hour' - Hour view
TimelineScale.DAY // 'day' - Day view
TimelineScale.WEEK // 'week' - Week view
TimelineScale.MONTH // 'month' - Month view
TimelineScale.QUARTER // 'quarter' - Quarter view
TimelineScale.YEAR // 'year' - Year view
```
**Example 1: Complete Configuration (Show All Features)**
```vue
<template>
<GanttChart :tasks="tasks" :toolbar-config="toolbarConfig" />
</template>
<script setup lang="ts">
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
import type { ToolbarConfig } from 'jordium-gantt-vue3'
const toolbarConfig: ToolbarConfig = {
showAddTask: true, // Show add task button
showAddMilestone: true, // Show add milestone button
showTodayLocate: true, // Show locate to today button
showExportCsv: true, // Show export CSV button
showExportPdf: true, // Show export PDF button
showLanguage: true, // Show language switch button
showTheme: true, // Show theme switch button
showFullscreen: true, // Show fullscreen button
showTimeScale: true, // Show time scale button group
timeScaleDimensions: [
// Show all time scale dimensions
'hour',
'day',
'week',
'month',
'quarter',
'year',
],
defaultTimeScale: 'week', // Default week view
showExpandCollapse: true, // Show expand/collapse button
}
</script>
```
**Example 2: Simplified Configuration (Show Common Features Only)**
```vue
<script setup lang="ts">
import type { ToolbarConfig } from 'jordium-gantt-vue3'
const toolbarConfig: ToolbarConfig = {
showAddTask: true, // Keep add task
showAddMilestone: true, // Keep add milestone
showTodayLocate: true, // Keep locate today
showExportCsv: false, // Hide export CSV
showExportPdf: false, // Hide export PDF
showLanguage: false, // Hide language switch (fixed to one language)
showTheme: true, // Keep theme switch
showFullscreen: true, // Keep fullscreen
showTimeScale: true, // Show time scale
timeScaleDimensions: [
// Only show day/week/month scales
'day',
'week',
'month',
],
defaultTimeScale: 'week', // Default week view
showExpandCollapse: true, // Keep expand/collapse
}
</script>
```
**Example 3: Using TimelineScale Constants**
```vue
<script setup lang="ts">
import { TimelineScale } from 'jordium-gantt-vue3'
import type { ToolbarConfig } from 'jordium-gantt-vue3'
const toolbarConfig: ToolbarConfig = {
showTimeScale: true,
timeScaleDimensions: [
TimelineScale.DAY,
TimelineScale.WEEK,
TimelineScale.MONTH,
TimelineScale.QUARTER,
],
defaultTimeScale: TimelineScale.MONTH, // Default month view
}
</script>
```
**Example 4: Minimal Configuration (Suitable for Embedded Use)**
```vue
<script setup lang="ts">
import type { ToolbarConfig } from 'jordium-gantt-vue3'
const toolbarConfig: ToolbarConfig = {
showAddTask: false, // Hide all edit buttons
showAddMilestone: false,
showTodayLocate: true, // Only keep navigation features
showExportCsv: false,
showExportPdf: false,
showLanguage: false,
showTheme: false,
showFullscreen: false,
showTimeScale: true, // Keep time scale switch
timeScaleDimensions: ['week', 'month'],
defaultTimeScale: 'month',
showExpandCollapse: false, // Hide expand/collapse
}
</script>
```
> **💡 Configuration Recommendations**
>
> - **Default configuration**When not passed, all buttons are shown by default
> - **Show as needed**: Hide unnecessary feature buttons based on business requirements
> - **Time scale**`timeScaleDimensions` controls which time dimensions to display, recommend selecting 2-4 common dimensions
> - **Responsive layout**toolbar will automatically adapt to container width, excessive buttons will collapse into more menu
#### TaskListConfigTask List Configuration
Customize task list display columns, width limits, etc. Task list is located on the left side of the Gantt chart, showing detailed task information.
**Type Definition**
| Field | Type | Default | Description |
| ---------------- | ------------------------ | ----------------- | ---------------------------------------------------------------------------------------------------------------- |
| `columns` | `TaskListColumnConfig[]` | Default 8 columns | Task list column configuration array, defines which columns to display and their properties |
| `showAllColumns` | `boolean` | `true` | Whether to show all columns. When `true`, ignores `visible` setting in `columns` |
| `defaultWidth` | `number \| string` | `320` | Default expanded width. Supports pixel number (like `320`) or percentage string (like `'30%'`) |
| `minWidth` | `number \| string` | `280` | Minimum width. Supports pixel number (like `280`) or percentage string (like `'20%'`). Cannot be less than 280px |
| `maxWidth` | `number \| string` | `1160` | Maximum width. Supports pixel number (like `1160`) or percentage string (like `'80%'`) |
| `showTaskIcon` | `boolean` | `true` | Whether to show Tasks' icons |
**TaskListColumnConfig Type Definition**
| Field | Type | Required | Description |
| ---------- | --------- | -------- | ----------------------------------------------------------------------------------------------- |
| `key` | `string` | ✅ | Unique column identifier, used to access fields in Task object and for internationalization |
| `label` | `string` | - | Column display label (header text) |
| `cssClass` | `string` | - | Custom CSS class name |
| `width` | `number` | - | Column width (unit: pixels) |
| `visible` | `boolean` | - | Whether to show this column, default `true`. This setting is invalid when `showAllColumns=true` |
**Example1Basic Configuration (Adjust Width)**
```vue
<template>
<GanttChart :tasks="tasks" :task-list-config="taskListConfig" />
</template>
<script setup lang="ts">
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
import type { TaskListConfig } from 'jordium-gantt-vue3'
const taskListConfig: TaskListConfig = {
defaultWidth: 450, // Default width 450px (wider than default 320px)
minWidth: 300, // Minimum width 300px
maxWidth: 1200, // Maximum width 1200px
}
</script>
```
**Example2Using Percentage Width**
```vue
<template>
<GanttChart :tasks="tasks" :task-list-config="taskListConfig" />
</template>
<script setup lang="ts">
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
import type { TaskListConfig } from 'jordium-gantt-vue3'
const taskListConfig: TaskListConfig = {
defaultWidth: '25%', // Default 25% of container width
minWidth: '15%', // Minimum 15%
maxWidth: '60%', // Maximum 60%
}
</script>
```
**Example3Custom Display Columns (Standard Configuration)**
Based on business requirements, you can customize columns to display, column widths, and display order. Recommend defining column configuration array first, then assign to `columns` prop.
```vue
<template>
<GanttChart :tasks="tasks" :task-list-config="taskListConfig" />
</template>
<script setup lang="ts">
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
import type { TaskListConfig, TaskListColumnConfig } from 'jordium-gantt-vue3'
// Define column configuration to display
const columns: TaskListColumnConfig[] = [
{ key: 'predecessor', label: 'Predecessors', visible: true },
{ key: 'assignee', label: 'Assignee', visible: true },
{ key: 'startDate', label: 'Start Date', visible: true },
{ key: 'endDate', label: 'End Date', visible: true },
{ key: 'estimatedHours', label: 'Estimated Hours', visible: true },
{ key: 'actualHours', label: 'Actual Hours', visible: true },
{ key: 'progress', label: 'Progress', visible: true },
]
const taskListConfig: TaskListConfig = {
columns,
defaultWidth: 450,
minWidth: 300,
maxWidth: 1200,
}
</script>
```
**Example4Simplified Column Configuration**
Only show core information columns, suitable for scenarios with limited space or requiring concise display.
```vue
<script setup lang="ts">
import type { TaskListConfig, TaskListColumnConfig } from 'jordium-gantt-vue3'
// Define simplified Column Configuration
const columns: TaskListColumnConfig[] = [
{ key: 'name', label: 'Task', visible: true },
{ key: 'assignee', label: 'Assignee', width: 80, visible: true },
{ key: 'progress', label: 'Progress', width: 60, visible: true },
]
const taskListConfig: TaskListConfig = {
columns,
defaultWidth: 350,
minWidth: 280,
maxWidth: 500,
showAllColumns: false, // Only show columns with visible=true
}
</script>
```
**Example5Custom Business Columns**
Add business-related custom columns, ensure Task object contains corresponding fields.
```vue
<script setup lang="ts">
import type { TaskListConfig, TaskListColumnConfig } from 'jordium-gantt-vue3'
// Define configuration with custom columns
const columns: TaskListColumnConfig[] = [
{ key: 'name', label: 'Task Name', visible: true },
{ key: 'priority', label: 'Priority', width: 80, visible: true }, // Custom column
{ key: 'department', label: 'Department', width: 100, visible: true }, // Custom column
{ key: 'status', label: 'Status', width: 80, visible: true }, // Custom column
{ key: 'assignee', label: 'Assignee', visible: true },
{ key: 'startDate', label: 'Start Date', visible: true },
{ key: 'endDate', label: 'End Date', visible: true },
{ key: 'progress', label: 'Progress', visible: true },
]
const taskListConfig: TaskListConfig = {
columns,
}
</script>
```
**Example6Dynamic Column Configuration**
Combine `ref` and `computed` to achieve dynamic show/hide and width adjustment of columns.
```vue
<template>
<GanttChart :tasks="tasks" :task-list-config="taskListConfig" />
</template>
<script setup lang="ts">
import { ref, computed } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
import type { TaskListConfig, TaskListColumnConfig } from 'jordium-gantt-vue3'
// Define dynamically configurable columns
const availableColumns = ref<TaskListColumnConfig[]>([
{ key: 'predecessor', label: 'Predecessors', visible: true },
{ key: 'assignee', label: 'Assignee', visible: true },
{ key: 'startDate', label: 'Start Date', visible: true },
{ key: 'endDate', label: 'End Date', visible: true },
{ key: 'estimatedHours', label: 'Estimated Hours', visible: true },
{ key: 'actualHours', label: 'Actual Hours', visible: true },
{ key: 'progress', label: 'Progress', visible: true },
{ key: 'custom', label: 'Custom column', visible: true, width: 120 },
])
// Define width configuration
const taskListWidth = ref({
defaultWidth: 450,
minWidth: 300,
maxWidth: 1200,
})
// Use computed property to dynamically generate configuration
const taskListConfig = computed<TaskListConfig>(() => ({
columns: availableColumns.value,
defaultWidth: taskListWidth.value.defaultWidth,
minWidth: taskListWidth.value.minWidth,
maxWidth: taskListWidth.value.maxWidth,
}))
</script>
```
> **💡 Configuration Notes**
>
> - **Default behavior**When not passed, show all 8 default columns with width of 320px
> - **Width units**Supports pixel (`number`) and percentage (`string`, like `'30%'`) methods
> - **Percentage calculation**Based on total width of Gantt chart container, responsive adjustment
> - **Column order**: `columns` array order determines column display order
> - **Column configuration standards**Recommend defining `TaskListColumnConfig[]` type column array first, then assign to `columns` prop
> - **Custom column support**Task interface supports arbitrary custom fields through `[key: string]: unknown` index signature, component will dynamically read column values through `task[column.key]`, no need to modify Task interface to add custom columns
> - **Dynamic configuration**Combine `ref` and `computed` to achieve dynamic show/hide and width adjustment of columns
> - **Minimum width limit**: `minWidth` cannot be less than 280px, this is the minimum value to ensure basic usability
#### TaskBarConfig (Task Bar Configuration)
Controls task bar display content and interaction behavior。
**Configuration Fields**
| Field | Type | Default | Description |
| ------------------- | --------- | ------- | --------------------------------------------------------- |
| `showAvatar` | `boolean` | `true` | Whether to show avatar |
| `showTitle` | `boolean` | `true` | Whether to show title text |
| `showProgress` | `boolean` | `true` | Whether to show progress text |
| `dragThreshold` | `number` | `5` | Drag trigger threshold (pixels) |
| `resizeHandleWidth` | `number` | `5` | Resize handle width (pixels), max 15px |
| `enableDragDelay` | `boolean` | `false` | Whether to enable drag delay (prevent accidental trigger) |
| `dragDelayTime` | `number` | `150` | Drag delay time (milliseconds) |
> **💡 Edit Permission Control**
>
> - **Global control**: Use `<GanttChart :allow-drag-and-resize="false" />` to disable drag/resize for all tasks
> - **Individual task control**: Set task object `isEditable: false` property to control individual task
**Example1Complete Configuration**
```vue
<template>
<GanttChart :tasks="tasks" :task-bar-config="taskBarConfig" />
</template>
<script setup lang="ts">
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
import type { TaskBarConfig } from 'jordium-gantt-vue3'
const taskBarConfig: TaskBarConfig = {
showAvatar: true,
showTitle: true,
showProgress: true,
dragThreshold: 8,
resizeHandleWidth: 8,
enableDragDelay: true,
dragDelayTime: 200,
}
</script>
```
**Example2Global Read-Only Mode**
Disable edit operations for all tasks.
```vue
<template>
<GanttChart :tasks="tasks" :allow-drag-and-resize="false" />
</template>
```
**Example3Individual Task Read-Only**
Only certain tasks are non-editable, other tasks are normal.
```vue
<script setup lang="ts">
import type { Task } from 'jordium-gantt-vue3'
const tasks: Task[] = [
{
id: 1,
name: 'Editable Task',
startDate: '2025-01-01',
endDate: '2025-01-10',
// isEditable default is true
},
{
id: 2,
name: 'Read-Only Task (Locked)',
startDate: '2025-01-05',
endDate: '2025-01-15',
isEditable: false, // This task cannot be dragged/resized
},
]
</script>
```
**Example4Simplified Display**
Only show task bar, hide avatar, title and progress text.
```vue
<script setup lang="ts">
import type { TaskBarConfig } from 'jordium-gantt-vue3'
const taskBarConfig: TaskBarConfig = {
showAvatar: false,
showTitle: false,
showProgress: false,
}
</script>
```
**Example5Anti-Accidental Touch Configuration**
In mobile or touch screen scenarios, increase drag threshold and delay time.
```vue
<script setup lang="ts">
import { computed, ref } from 'vue'
import type { TaskBarConfig } from 'jordium-gantt-vue3'
const isTouchDevice = ref('ontouchstart' in window)
const taskBarConfig = computed<TaskBarConfig>(() => ({
dragThreshold: isTouchDevice.value ? 10 : 5,
resizeHandleWidth: isTouchDevice.value ? 12 : 5,
enableDragDelay: isTouchDevice.value,
dragDelayTime: isTouchDevice.value ? 300 : 150,
}))
</script>
```
#### Timeline Container Auto-Fill Configuration
The component has built-in intelligent timeline range calculation logic, ensuring that regardless of task data volume or task duration, the timeline always fills the container width, providing the best visual experience.
**Core Design Principles:**
1. **Base Buffer Mechanism**: Add fixed buffers based on the actual time range of tasks, varying by view type
- Hour view±1 day task range
- Day view: ±30 days before/after task range
- Week view: ±8 weeks (approx. 2 months) before/after task range
- Month view: ±1 year before/after task range
- Quarter view: ±1 year before/after task range
- Year view: ±1 year before/after task range
2. **Container Width Adaptation**: After base buffering, if calculated timeline width is less than container width, automatically extend the range
- Calculate time units (days/weeks/months/quarters/years) needed for container
- **Symmetrically extend** on both sides of base range to ensure timeline fills container
3. **Empty Data Handling**: When no task data exists, calculate reasonable time range based on container width and time scale
- Center on current date
- Dynamically calculate time span to display based on container width
- Ensure minimum display range (e.g., at least 60 days for day view, at least 20 weeks for week view)
4. **Independent Calculation on View Switch**: Each time scale switch triggers independent recalculation of optimal time range for that view
- Avoid unreasonable ranges caused by different views sharing cache
- Each view gets optimal display effect
**Calculation Pattern Reference Table:**
| View | Unit Width | Base Buffer | Empty Data Min Range | Container Auto-Fill? |
| ------------ | ------------------------- | ----------- | -------------------- | -------------------- |
| Hour View | 30px/hour | ±1 day | 3 days | ✅ |
| Day View | 30px/day | ±30 days | 60 days | ✅ |
| Week View | 60px/week | ±2 months | 20 weeks | ✅ |
| Month View | 60px/month | ±1 year | 3 years | ✅ |
| Quarter View | 60px/quarter (240px/year) | ±1 year | 5 years | ✅ |
| Year View | 360px/year | ±1 year | 5 years | ✅ |
**Practical Application Scenarios:**
- **Short-term Tasks** (e.g., 1-week project):
- Won't result in narrow timeline, automatically extends to fill container
- Day view: 1 week (7 days × 30px = 210px) → Extends to ≥1200px (approx. 40 days)
- Week view: 1 week (60px) → Extends to ≥1200px (approx. 20 weeks)
- **Long-term Projects** (e.g., 2-year project):
- After adding fixed buffer, automatically adapts to container
- Month view: 24 months + buffer → Extends to container width if needed
- Quarter view: 8 quarters + buffer → Extends to container width if needed
- **Empty Board** (no task data):
- Day view: Centered on today, displays at least 60 days
- Week view: Centered on today, displays at least 20 weeks
- Month view: Displays at least 3 years
- Quarter/Year view: Displays at least 5 years
> **💡 Automation Advantages**:
>
> - No need to manually set `startDate` and `endDate`, component automatically calculates optimal range
> - Responsive to container width changes, timeline automatically recalculates
> - Different views independently optimized, auto-adjusts to best display effect when switching views
> - Avoids issues with timeline being too narrow or having excessive whitespace
> - Suitable for displaying at different resolutions
### Expose Methods
The GanttChart component exposes a series of methods through `defineExpose`, allowing parent components to directly call these methods via template references (`ref`) to control component behavior. This imperative control approach is suitable for scenarios requiring precise timing control.
#### Available Expose Methods
| Method | Parameters | Return Value | Description |
| --- | --- | --- | --- |
| `setLocale` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | `locale: 'zh-CN' \| 'en-US'` | `void` | Set component language |
| `currentLocale` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `'zh-CN' \| 'en-US'` | Get current language setting |
| `setTheme` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | `mode: 'light' \| 'dark'` | `void` | Set theme mode |
| `currentTheme` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `'light' \| 'dark'` | Get current theme mode |
| `setTimeScale` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | `scale: TimelineScale` | `void` | Set time scale (`'hour' \| 'day' \| 'week' \| 'month' \| 'quarter' \| 'year'`) |
| `zoomIn` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `void` | zoom in time scale`'year' -> 'quarter' -> 'month' -> 'week' -> 'day' -> 'hour'` |
| `zoomOut` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `void` | zoom out time scale`'hour' -> 'day' -> 'week' -> 'month' -> 'quarter' -> 'year'` |
| `currentScale` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `TimelineScale` | Get current time scale |
| `toggleFullscreen` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `void` | Toggle fullscreen state |
| `enterFullscreen` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `void` | Enter fullscreen mode |
| `exitFullscreen` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `void` | Exit fullscreen mode |
| `isFullscreen` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `boolean` | Get current fullscreen state |
| `toggleExpandAll` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `void` | Toggle expand/collapse all tasks |
| `expandAll` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `void` | Expand all tasks |
| `collapseAll` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `void` | Collapse all tasks |
| `isExpandAll` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `boolean` | Get current expand all state |
| `scrollToToday` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | - | `void` | Scroll to today's position |
| `scrollToTask` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | `taskId: number \| string` | `void` | Scroll to specified task (task will auto-expand to visible state) |
| `scrollToDate` ![v1.7.1](https://img.shields.io/badge/v1.7.1-409EFF?style=flat-square&labelColor=ECF5FF) | `date: string \| Date` | `void` | Scroll to specified date position (format: `'YYYY-MM-DD'` or Date object) |
| `getTaskListVisible` ![v1.9.2](https://img.shields.io/badge/v1.9.2-409EFF?style=flat-square&labelColor=ECF5FF) | - | `boolean` | Get the current visibility state of TaskList |
| `setTaskListVisible` ![v1.9.2](https://img.shields.io/badge/v1.9.2-409EFF?style=flat-square&labelColor=ECF5FF) | `visible: boolean` | `void` | Imperatively set TaskList visibility (only effective when `enableTaskListCollapsible=true`) |
| `toggleTaskList` ![v1.9.2](https://img.shields.io/badge/v1.9.2-409EFF?style=flat-square&labelColor=ECF5FF) | - | `void` | Toggle TaskList expand/collapse state with animation |
#### Usage Example
**Basic Usage: Imperative Control**
```vue
<template>
<div>
<!-- External control buttons -->
<div class="control-panel">
<button @click="handleSetLocale('zh-CN')">中文</button>
<button @click="handleSetLocale('en-US')">English</button>
<button @click="handleSetTheme('light')">Light Theme</button>
<button @click="handleSetTheme('dark')">Dark Theme</button>
<button @click="handleSetTimeScale('day')">Day View</button>
<button @click="handleSetTimeScale('week')">Week View</button>
<button @click="handleSetTimeScale('month')">Month View</button>
<button @click="ganttRef?.toggleFullscreen()">Toggle Fullscreen</button>
<button @click="ganttRef?.toggleExpandAll()">Expand/Collapse All</button>
<button @click="ganttRef?.scrollToToday()">Locate Today</button>
<button @click="handleScrollToTask">Scroll to Task 2</button>
<button @click="handleScrollToDate">Scroll to 2025-06-01</button>
</div>
<!-- Status display -->
<div class="status-panel">
<p>Current Language: {{ currentLang }}</p>
<p>Current Theme: {{ currentThemeMode }}</p>
<p>Current Scale: {{ currentTimeScale }}</p>
<p>Fullscreen: {{ isFullscreenMode ? 'Yes' : 'No' }}</p>
<p>Expand State: {{ isAllExpanded ? 'All Expanded' : 'Partially Collapsed' }}</p>
</div>
<!-- Gantt chart component -->
<div style="height: 600px;">
<GanttChart
ref="ganttRef"
:tasks="tasks"
:milestones="milestones"
/>
</div>
</div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import type { TimelineScale } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
// Component reference
const ganttRef = ref<InstanceType<typeof GanttChart>>()
// State variables
const currentLang = ref<'zh-CN' | 'en-US'>('zh-CN')
const currentThemeMode = ref<'light' | 'dark'>('light')
const currentTimeScale = ref<TimelineScale>('week')
const isFullscreenMode = ref(false)
const isAllExpanded = ref(true)
// Task data
const tasks = ref([
{ id: 1, name: 'Task 1', startDate: '2025-01-01', endDate: '2025-01-10', progress: 50 },
{ id: 2, name: 'Task 2', startDate: '2025-01-05', endDate: '2025-01-15', progress: 30 },
])
const milestones = ref([])
// Language control
const handleSetLocale = (locale: 'zh-CN' | 'en-US') => {
ganttRef.value?.setLocale(locale)
currentLang.value = ganttRef.value?.currentLocale() || locale
}
// Theme control
const handleSetTheme = (mode: 'light' | 'dark') => {
ganttRef.value?.setTheme(mode)
currentThemeMode.value = ganttRef.value?.currentTheme() || mode
}
// Time scale control
const handleSetTimeScale = (scale: TimelineScale) => {
ganttRef.value?.setTimeScale(scale)
currentTimeScale.value = ganttRef.value?.currentScale() || scale
}
// Scroll to specified task
const handleScrollToTask = () => {
ganttRef.value?.scrollToTask(2)
}
// Scroll to specified date
const handleScrollToDate = () => {
ganttRef.value?.scrollToDate('2025-06-01')
}
</script>
<style scoped>
.control-panel {
display: flex;
gap: 10px;
margin-bottom: 20px;
flex-wrap: wrap;
}
.status-panel {
padding: 10px;
background-color: #f5f5f5;
border-radius: 4px;
margin-bottom: 20px;
}
.status-panel p {
margin: 5px 0;
}
</style>
```
#### Best Practices
1. **Imperative vs Reactive**
- Use **Expose Methods**: When you need precise control over timing, such as button clicks or specific event triggers
- Use **Props Binding**: When state needs to automatically update following data source, such as syncing with URL parameters
2. **Getting State**
- Provides paired getter methods (like `currentLocale()`, `currentTheme()`)
- Can immediately get the latest state for verification after calling setters
3. **Error Handling**
- Check if `ref` is mounted before calling: `ganttRef.value?.methodName()`
- Safer to call after `onMounted` lifecycle
**Complete examples can be found in:**
- npm-demo project: `npm-demo/src/components/GanttTest.vue`
- npm-webpack-demo project: `npm-webpack-demo/src/App.vue`
---
### Theme & Internationalization
#### Theme Switching
Component has built-in light and dark themes, can switch via toolbar button, also can listen to switch events:
```vue
<template>
<GanttChart :tasks="tasks" :on-theme-change="handleThemeChange" />
</template>
<script setup lang="ts">
const handleThemeChange = (isDark: boolean) => {
console.log('Theme switched to:', isDark ? 'dark' : 'light')
// Can save user preference settings to localStorage here
localStorage.setItem('gantt-theme', isDark ? 'dark' : 'light')
}
</script>
```
#### Custom Theme Variables
Customize theme by overriding CSS variables:
```css
/* Customize light theme */
:root {
/* Primary colors */
--gantt-primary-color: #409eff;
--gantt-success-color: #67c23a;
--gantt-warning-color: #e6a23c;
--gantt-danger-color: #f56c6c;
/* Background colors */
--gantt-bg-primary: #ffffff;
--gantt-bg-secondary: #f5f7fa;
--gantt-bg-hover: #ecf5ff;
/* Text colors */
--gantt-text-primary: #303133;
--gantt-text-secondary: #606266;
--gantt-text-placeholder: #c0c4cc;
/* Border colors */
--gantt-border-color: #dcdfe6;
--gantt-border-color-light: #e4e7ed;
/* Task bar colors */
--gantt-task-bg: #409eff;
--gantt-task-border: #66b1ff;
--gantt-task-text: #ffffff;
}
/* Customize dark theme */
.dark {
--gantt-bg-primary: #1a1a1a;
--gantt-bg-secondary: #2c2c2c;
--gantt-bg-hover: #3a3a3a;
--gantt-text-primary: #e5e5e5;
--gantt-text-secondary: #b0b0b0;
--gantt-border-color: #3a3a3a;
--gantt-border-color-light: #4a4a4a;
--gantt-task-bg: #409eff;
--gantt-task-border: #66b1ff;
--gantt-task-text: #ffffff;
}
```
#### Language Switching
Component has built-in Chinese (zh-CN) and English (en-US), can switch via toolbar button:
```vue
<template>
<GanttChart :tasks="tasks" :on-language-change="handleLanguageChange" />
</template>
<script setup lang="ts">
const handleLanguageChange = (lang: 'zh-CN' | 'en-US') => {
console.log('Language switched to:', lang)
// Can save user preference settings to localStorage here
localStorage.setItem('gantt-language', lang)
}
</script>
```
#### Custom Translations
Pass custom multilingual text via the `localeMessages` prop, which will be automatically merged into the default translations:
```vue
<template>
<GanttChart :tasks="tasks" :locale-messages="customMessages" />
</template>
<script setup lang="ts">
const customMessages = {
"zh-CN": {
// Task list related
taskName: 'Task Name (Custom)',
startDate: 'Start Date',
endDate: 'End Date',
duration: 'Duration',
progress: 'Completion',
predecessor: 'Predecessors',
assignee: 'Assignee',
estimatedHours: 'Estimated Hours',
actualHours: 'Actual Hours',
// Custom fields (supports nested structure)
department: 'Department',
status: 'Status',
gantt: {
planEndDate: 'Plan End Date',
planStartDate: 'Plan Start Date'
}
},
"en-US": {
department: 'Department',
status: 'Status',
gantt: {
planEndDate: 'Plan End Date',
planStartDate: 'Plan Start Date'
}
}
}
</script>
```
> **💡 Tip**:
>
> - `localeMessages` uses a **deep merge** strategy, only pass fields that need to be overridden or added
> - Supports nested object structures, such as `gantt.planEndDate`
> - For complete built-in translation keys, please refer to `useI18n.ts` in the component source code
##### Using Translations in Custom Slots
The component exports the `useI18n` composable, which can be used in custom slots to access translation text. It supports two access methods:
**Method 1: Reactive Access (`t.field`)**
Access translation text directly through a reactive object, with concise syntax, suitable for use in templates:
```vue
<script setup>
import { GanttChart, TaskListColumn, useI18n } from 'jordium-gantt-vue3'
const { t } = useI18n()
const customMessages = {
'zh-CN': {
department: 'Department'
}
}
</script>
<template>
<GanttChart :tasks="tasks" :locale-messages="customMessages" />
<!-- Reactive access: directly through the t object -->
<TaskListColumn prop="startDate" label="Start Date" width="250">
<template #header>
<strong style="color: #1890ff;">{{ t.department }}</strong>
</template>
</TaskListColumn>
</template>
```
**Method 2: Function Access (`getTranslation()`)**
Supports nested keys and default values, suitable for accessing deep structures or dynamic keys:
```vue
<script setup>
import { GanttChart, TaskListColumn, useI18n } from 'jordium-gantt-vue3'
const { getTranslation } = useI18n()
const customMessages = {
'en-US': {
gantt: {
planEndDate: 'Plan End Date'
}
}
}
</script>
<template>
<GanttChart :tasks="tasks" :locale-messages="customMessages" />
<!-- Function access: supports nested keys and default values -->
<TaskListColumn prop="endDate" :label="getTranslation('gantt.planEndDate')" width="250" />
</template>
```
**Complete Example (with Language Switching):**
```vue
<script setup>
import { ref } from 'vue'
import { GanttChart, TaskListColumn, useI18n } from 'jordium-gantt-vue3'
// Custom multilingual configuration
const customMessages = {
'zh-CN': {
department: '部门',
gantt: {
planEndDate: '计划结束时间'
}
},
'en-US': {
department: 'Department',
gantt: {
planEndDate: 'Plan End Date'
}
}
}
// Use useI18n to access translations
const { t, getTranslation, locale, setLocale } = useI18n()
const tasks = ref([...])
// Language switching
const switchLanguage = () => {
setLocale(locale.value === 'zh-CN' ? 'en-US' : 'zh-CN')
}
</script>
<template>
<button @click="switchLanguage">Switch Language</button>
<GanttChart :tasks="tasks" :locale-messages="customMessages" />
<!-- Reactive access: directly through the t object -->
<TaskListColumn prop="startDate" label="Start Date" width="250">
<template #header>
<strong style="color: #1890ff;">{{ t.department }}</strong>
</template>
</TaskListColumn>
<!-- Function access: supports nested keys and default values -->
<TaskListColumn prop="endDate" :label="getTranslation('gantt.planEndDate')" width="250" />
</template>
```
**`useI18n` API Reference:**
| Export | Type | Description |
|--------|------|-------------|
| `t` | `Ref<object>` | Reactive translation object, access via `t.key` or `t.nested.key` |
| `getTranslation(key, defaultValue?)` | `Function` | Function-based access to translation text<br>`key`: Translation key, supports nested paths (e.g., `'gantt.planEndDate'`)<br>`defaultValue`: Optional, default value returned when translation is not found<br>• Returns: Translation text, default value, or the key itself |
| `formatTranslation(key, params)` | `Function` | Format translation text with parameters<br>`key`: Translation key<br>`params`: Parameter object, e.g., `{ name: 'Task1' }`<br>• Returns: Text with placeholders replaced (e.g., `'Task {name}'``'Task Task1'`) |
| `locale` | `Ref<string>` | Current language (`'zh-CN'` or `'en-US'`) |
| `setLocale(locale)` | `Function` | Switch language, automatically updates all components using `useI18n` |
| `formatYearMonth(year, month)` | `Function` | Format year-month display<br>• Chinese: `formatYearMonth(2024, 3)``'2024年03月'`<br>• English: `formatYearMonth(2024, 3)``'2024/03'` |
| `formatMonth(month)` | `Function` | Format month display<br>• Chinese: `formatMonth(3)``'3月'`<br>• English: `formatMonth(3)``'03'` |
**Usage Examples:**
```vue
<script setup>
import { useI18n } from 'jordium-gantt-vue3'
const { t, getTranslation, formatTranslation, formatYearMonth, formatMonth } = useI18n()
// 1. Basic access
const text1 = t.taskName // 'Task Name'
const text2 = getTranslation('gantt.planEndDate', 'Plan End') // 'Plan End Date' or default value
// 2. Translation with parameters
const message = formatTranslation('taskNotFound', { id: '123' }) // 'Task not found for update, ID: 123'
// 3. Date formatting
const yearMonth = formatYearMonth(2024, 3) // '2024年03月' (zh-CN) or '2024/03' (en-US)
const month = formatMonth(3) // '3月' (zh-CN) or '03' (en-US)
</script>
```
> **💡 Usage Tips**:
>
> - **Reactive access** (`t.key`): Concise syntax, suitable for direct use in templates
> - **Function access** (`getTranslation('nested.key', 'default')`): Supports nested keys and default values, suitable for accessing deep structures
> - Pass custom translations via the `localeMessages` prop, then access via `useI18n` to translate
> - Language switching is implemented via `setLocale()`, all components will automatically respond to updates
### Custom Extensions
#### Slots (Slots)
Component provides slots support, allowing custom task content rendering。
##### `taskbar-tooltip` Slot ![v1.9.2](https://img.shields.io/badge/v1.9.2-409EFF?style=flat-square&labelColor=ECF5FF)
Fully replaces the built-in TaskBar hover tooltip content. When used, the built-in tooltip is no longer rendered — the consumer has complete control.
> **Prerequisite**: Requires `:enable-taskbar-tooltip="true"` (enabled by default)
**Slot scope parameters (`TaskbarTooltipSlotScope`):**
> The component provides data via `<slot :task="..." :task-status="..." />`. The consumer can receive the whole `scope` object or destructure only what's needed — all parameters are **optional**. `task` is the raw task object from your `:tasks` / `:resources` data, including any custom fields.
| Param | Type | Description |
| --- | --- | --- |
| `task` | `Task` | The currently hovered task object with complete task data |
| `taskStatus` | `{ color: string; label: string }` | Pre-computed task status (color + label) for quick display |
| `resourcePercent` | `number \| null` | Resource usage percentage (valid in resource view; `null` in task view) |
**All three patterns are equivalent:**
```vue
<!-- Pattern 1: whole scope object -->
<template #taskbar-tooltip="scope">
{{ scope.task.name }}
</template>
<!-- Pattern 2: destructure only what you need -->
<template #taskbar-tooltip="{ task }">
{{ task.name }}
</template>
<!-- Pattern 3: destructure all fields -->
<template #taskbar-tooltip="{ task, taskStatus, resourcePercent }">
...
</template>
```
**Example — minimal usage (task name only):**
```vue
<GanttChart :tasks="tasks">
<template #taskbar-tooltip="{ task }">
<div class="my-simple-tooltip">{{ task.name }}</div>
</template>
</GanttChart>
```
**Example — using full scope:**
```vue
<GanttChart :tasks="tasks">
<template #taskbar-tooltip="{ task, taskStatus, resourcePercent }">
<div class="my-tooltip">
<div class="tooltip-title" :style="{ borderColor: taskStatus.color }">
{{ task.name }}
</div>
<div>Status: {{ taskStatus.label }}</div>
<div>Start: {{ task.startDate }}</div>
<div>End: {{ task.endDate }}</div>
<div v-if="resourcePercent !== null">Resource: {{ resourcePercent }}%</div>
</div>
</template>
</GanttChart>
```
---
##### `custom-task-content` Slots
Used to customize task display content in task list (TaskRow) and timeline (TaskBar).
**Slot Parameters**
| Parameter | Type | Source | Description |
| --------- | ---------------------------- | ------ | ----------------------------- |
| `type` | `'task-row'` \| `'task-bar'` | Common | Slot call position identifier |
| `task` | `Task` | Common | Current task object |
**TaskRow specific parameters (when `type === 'task-row'`):**
| Parameter | Type | Description |
| ---------------- | -------------------------------- | ------------------------- |
| `isRowContent` | `boolean` | Identified as row content |
| `level` | `number` | Task level |
| `indent` | `string` | Indent style |
| `isHovered` | `boolean` | Whether hovering |
| `hoveredTaskId` | `number \| null` | Current hovering task ID |
| `isParent` | `boolean` | Whether parent task |
| `hasChildren` | `boolean` | Whether has child tasks |
| `collapsed` | `boolean` | Whether collapsed |
| `formattedTimer` | `string` | Formatted timer text |
| `timerRunning` | `boolean` | Whether timer is running |
| `timerElapsed` | `number` | Elapsed time |
| `isOvertime` | `number \| boolean \| undefined` | Whether overtime |
| `overdueDays` | `number` | Overdue days |
| `overtimeText` | `string` | Overtime text |
| `overdueText` | `string` | Overdue text |
| `daysText` | `string` | Days text |
| `progressClass` | `string` | Progress CSS class name |
**TaskBar specific parameters (when `type === 'task-bar'`):**
| Parameter | Type | Description |
| ------------------ | --------------- | ------------------------------------------------------------------------------------ |
| `status` | `object` | TaskStatus object, contains `type`, `color`, `bgColor`, `borderColor` |
| `statusType` | `string` | StatusType`'completed'`, `'delayed'`, `'in-progress'`, `'not-started'`, `'parent'` |
| `isParent` | `boolean` | Whether parent task |
| `progress` | `number` | TaskProgress0-100 |
| `currentTimeScale` | `TimelineScale` | Current time scale |
| `rowHeight` | `number` | Row height (pixels) |
| `dayWidth` | `number` | Width per day (pixels) |
**Usage Example**
```vue
<template>
<GanttChart :tasks="tasks">
<template #custom-task-content="slotProps">
<!-- Render different content based on type -->
<CustomTaskContent :task="slotProps.task" :type="slotProps.type" :status="slotProps.status" />
</template>
</GanttChart>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
import type { Task } from 'jordium-gantt-vue3'
import CustomTaskContent from './CustomTaskContent.vue'
const tasks = ref<Task[]>([
{
id: 1,
name: '<strong>Important Task</strong>',
startDate: '2025-01-01',
endDate: '2025-01-10',
progress: 50,
},
])
</script>
```
**Custom Content Component Example**
```vue
<!-- CustomTaskContent.vue -->
<script setup lang="ts">
import type { Task } from 'jordium-gantt-vue3'
interface Props {
task: Task
type: 'task-row' | 'task-bar'
status?: {
type: string
color: string
bgColor: string
borderColor: string
}
}
const props = defineProps<Props>()
</script>
<template>
<div class="custom-task-content">
<!-- Rendering in TaskRow -->
<div v-if="type === 'task-row'" class="task-row-content">
<span v-html="task.name" />
</div>
<!-- Rendering in TaskBar -->
<div v-else-if="type === 'task-bar'" class="task-bar-content">
<div class="task-icon" :style="{ color: status?.color }">📌</div>
<span class="task-title" v-html="task.name" />
</div>
</div>
</template>
<style scoped>
.custom-task-content {
width: 100%;
height: 100%;
}
.task-row-content {
padding: 0 4px;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.task-bar-content {
display: flex;
align-items: center;
gap: 4px;
padding: 0 8px;
overflow: hidden;
}
.task-icon {
flex-shrink: 0;
font-size: 14px;
}
.task-title {
flex: 1;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
</style>
```
> **💡 Usage Scenarios**
>
> - Support HTML formatted task names
> - Add custom icons, tags or badges
> - Display different styles based on task status
> - Integrate third-party rich text rendering
> - Display additional business information
> **⚠️ Notes**
>
> - Slot content will be rendered in both TaskRow and TaskBar
> - Need to distinguish rendering position based on `type` parameter
> - TaskRow and TaskBar have different available space, need to adapt layout
> - Avoid using overly complex components in slot content, may affect performance
##### TaskListContextMenu Slots
Used to customize the context menu content for TaskRow (task list row).
**Menu Display Logic:**
- When `enableTaskListContextMenu=true` and TaskListContextMenu component is **not declared** → Uses **built-in** context menu
- When `enableTaskListContextMenu=true` and TaskListContextMenu component is **declared** → Uses **custom** context menu
- When `enableTaskListContextMenu=false` → Context menu is **completely disabled** (regardless of component declaration)
**Slot List:**
| Slot Name | Parameters | Description |
| --------- | --------------------------------- | ----------------------------------------------------------------------------------------------------- |
| `default` | `scope: { row: Task, $index: number }` | Custom Task List Context Menu content. Access current task object via `scope.row`, access task index via `scope.$index`. |
**Usage Example:**
```vue
<template>
<GanttChart
:tasks="tasks"
:enable-task-list-context-menu="true"
>
<TaskListContextMenu>
<template #default="scope">
<div class="custom-menu">
<div class="menu-item" @click="handleEdit(task); onClose()">
Edit Task
</div>
<div class="menu-item" @click="handleDelete(task); onClose()">
🗑 Delete Task
</div>
<div class="menu-divider"></div>
<div class="menu-item" @click="handleDuplicate(task); onClose()">
📄 Duplicate Task
</div>
</div>
</template>
</TaskListContextMenu>
</GanttChart>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart, TaskListContextMenu } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
import type { Task } from 'jordium-gantt-vue3'
const tasks = ref<Task[]>([])
const handleEdit = (task: Task) => {
console.log('Edit task:', task)
}
const handleDelete = (task: Task) => {
console.log('Delete task:', task)
}
const handleDuplicate = (task: Task) => {
console.log('Duplicate task:', task)
}
</script>
<style scoped>
.custom-context-menu {
position: fixed;
background: white;
border: 1px solid #e0e0e0;
border-radius: 4px;
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
z-index: 9999;
min-width: 120px;
}
.menu-item {
padding: 8px 16px;
cursor: pointer;
transition: background-color 0.2s;
}
.menu-item:hover {
background-color: #f5f5f5;
}
.menu-divider {
height: 1px;
background-color: #e0e0e0;
margin: 4px 0;
}
</style>
```
##### TaskBarContextMenu Slots
Used to customize the context menu content for TaskBar (timeline task bar).
**Menu Display Logic:**
- When `enableTaskBarContextMenu=true` and TaskBarContextMenu component is **not declared** → Uses **built-in** context menu
- When `enableTaskBarContextMenu=true` and TaskBarContextMenu component is **declared** → Uses **custom** context menu
- When `enableTaskBarContextMenu=false` → Context menu is **completely disabled** (regardless of component declaration)
**Slot List:**
| Slot Name | Parameters | Description |
| --------- | --------------------------------- | ----------------------------------------------------------------------------------------------------- |
| `default` | `scope: { row: Task, $index: number }` | Custom Task Bar Context Menu content. Access current task object via `scope.row`, access task index via `scope.$index`. |
**Usage Example:**
```vue
<template>
<GanttChart
:tasks="tasks"
:enable-task-bar-context-menu="true"
>
<TaskBarContextMenu>
<template #default="scope">
<div class="custom-context-menu">
<div class="menu-item" @click="handleViewDetails(scope.row)">
👁 View Details
</div>
<div class="menu-item" @click="handleAdjustTime(scope.row)">
Adjust Time
</div>
<div class="menu-divider"></div>
<div class="menu-item" @click="handleSetDependency(scope.row)">
🔗 Set Dependency
</div>
</div>
</template>
</TaskBarContextMenu>
</GanttChart>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart, TaskBarContextMenu } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
import type { Task } from 'jordium-gantt-vue3'
const tasks = ref<Task[]>([])
const handleViewDetails = (task: Task) => {
console.log('View details:', task)
}
const handleAdjustTime = (task: Task) => {
console.log('Adjust time:', task)
}
const handleSetDependency = (task: Task) => {
console.log('Set dependency:', task)
}
</script>
<style scoped>
.custom-context-menu {
position: fixed;
background: white;
border: 1px solid #e0e0e0;
border-radius: 4px;
box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
z-index: 9999;
min-width: 120px;
}
.menu-item {
padding: 8px 16px;
cursor: pointer;
transition: background-color 0.2s;
}
.menu-item:hover {
background-color: #f5f5f5;
}
.menu-divider {
height: 1px;
background-color: #e0e0e0;
margin: 4px 0;
}
</style>
```
> **💡 Usage Scenarios**
>
> - Customize context menu styles and layouts
> - Add business-specific operations
> - Dynamically show menu items based on task status
> - Add permission control logic
> - Integrate third-party UI component library menus
> **⚠️ Notes**
>
> - When `enableTaskListContextMenu=false` or `enableTaskBarContextMenu=false`, the menu will not be displayed even if the component is declared
> - Context menus will automatically close when scrolling or clicking outside the menu
> - Recommended to use `<Teleport to="body">` to render the menu under body to avoid positioning and z-index issues
> - Remember to call `onClose()` after menu item clicks to close the menu
> - TaskRow and TaskBar context menus are independent and can be customized separately
> - By default, the system provides a built-in context menu with common operations
> - Declarative components do not render any content, only used for passing configuration
##### TaskListColumn Slots
The `TaskListColumn` component provides two slots for customizing task list column headers and cell content. Must be used in declarative mode (`taskListColumnRenderMode="declarative"`).
**Slot List:**
| Slot Name | Parameters | Description |
| --------- | --------------------------------- | ----------------------------------------------------------------------------------------------------- |
| `header` | - | Custom column header content. If not provided, the `label` prop will be displayed |
| `default` | `scope: { row: Task, $index: number }` | Custom column cell content. Access current task object via `scope.row`, access task index via `scope.$index`. If not provided, the value of `prop` field is shown |
**Usage Example:**
```vue
<template>
<GanttChart
:tasks="tasks"
task-list-column-render-mode="declarative"
>
<!-- Basic column definition without slots -->
<TaskListColumn prop="name" label="Task Name" width="300" />
<!-- Custom column header using header slot -->
<TaskListColumn prop="assignee" width="150" align="center">
<template #header>
<div style="display: flex; align-items: center; gap: 4px; color: #409eff;">
<span>👤</span>
<span>Assignee</span>
</div>
</template>
</TaskListColumn>
<!-- Custom cell content using default slot -->
<TaskListColumn prop="progress" label="Progress" width="150" align="center">
<template #default="scope">
<div style="display: flex; align-items: center; gap: 8px;">
<div
style="
flex: 1;
height: 8px;
background: #f0f0f0;
border-radius: 4px;
overflow: hidden;
"
>
<div
:style="{
width: `${scope.row.progress || 0}%`,
height: '100%',
background: scope.row.progress >= 100 ? '#67c23a' : scope.row.progress >= 50 ? '#409eff' : '#e6a23c',
transition: 'width 0.3s'
}"
></div>
</div>
<span style="min-width: 40px; text-align: right; font-size: 12px;">
{{ scope.row.progress || 0 }}%
</span>
</div>
</template>
</TaskListColumn>
<!-- Using both header and default slots -->
<TaskListColumn prop="startDate" width="160">
<template #header>
<div style="color: #67c23a; font-weight: bold;">📅 Start Date</div>
</template>
<template #default="scope">
<div style="display: flex; align-items: center; gap: 4px;">
<span style="color: #909399; font-size: 12px;">🕐</span>
<span>{{ scope.row.startDate || '-' }}</span>
</div>
</template>
</TaskListColumn>
<!-- Dynamic styling based on data -->
<TaskListColumn prop="status" label="Status" width="120" align="center">
<template #default="scope">
<span
:style="{
padding: '2px 8px',
borderRadius: '4px',
fontSize: '12px',
color: 'white',
background: scope.row.progress >= 100 ? '#67c23a' :
scope.row.progress > 0 ? '#409eff' : '#909399'
}"
>
{{ scope.row.progress >= 100 ? 'Completed' : scope.row.progress > 0 ? 'In Progress' : 'Not Started' }}
</span>
</template>
</TaskListColumn>
</GanttChart>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart, TaskListColumn } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
import type { Task } from 'jordium-gantt-vue3'
const tasks = ref<Task[]>([
{
id: 1,
name: 'Project Planning',
assignee: 'John',
startDate: '2025-01-01',
endDate: '2025-01-10',
progress: 100,
},
{
id: 2,
name: 'Requirements Analysis',
assignee: 'Jane',
startDate: '2025-01-11',
endDate: '2025-01-20',
progress: 60,
},
{
id: 3,
name: 'Development',
assignee: 'Bob',
startDate: '2025-01-21',
endDate: '2025-02-10',
progress: 0,
},
])
</script>
```
> **💡 Usage Scenarios**:
>
> - Custom column header icons, styles, or sorting buttons
> - Display visual components like progress bars, status badges
> - Dynamically adjust styles and content based on task data
> - Add action buttons (edit, delete, etc.)
> - Integrate third-party UI components (ratings, tag selectors, etc.)
> **⚠️ Notes**:
>
> - Slots must be used in `task-list-column-render-mode="declarative"` mode
> - The `default` slot receives a `scope` parameter, access current task object via `scope.row` (Task type), access index via `scope.$index`
> - Recommended to use `scope.row` instead of destructuring `{ row }` for code clarity and consistency
> - `scope.$index` is the index of the current task in the visible list (not global index)
> - Slot content is rendered in each task row, avoid overly complex components for performance
> - When column width is fixed, slot content should consider overflow handling (text ellipsis, auto-wrap, etc.)
##### TaskListColumnConfig Column Slots (Deprecated Soon)
> **⚠️ Important Notice**: This slot approach based on `TaskListColumnConfig` configuration is **deprecated and will be removed soon**. Strongly recommend using the declarative approach with [TaskListColumn Slots](#tasklistcolumn-slots) above for better type hints and code maintainability.
In default mode (`taskListColumnRenderMode="default"`), you can customize columns defined in `TaskListColumnConfig` via slots. Slot names are based on the `key` property in column configuration.
**Slot List:**
| Slot Pattern | Parameters | Description |
| --------------- | ---------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
| `header-{key}` | - | Custom header content for specified column. `{key}` is the `key` value defined in `TaskListColumnConfig` |
| `column-{key}` | `{ task: Task, column: TaskListColumnConfig, value: any }` | Custom cell content for specified column. `task` is current task object, `column` is column config, `value` is the column's value |
**Usage Example:**
```vue
<template>
<GanttChart
:tasks="tasks"
:task-list-config="taskListConfig"
task-list-column-render-mode="default"
>
<!-- Custom 'name' column header -->
<template #header-name>
<div style="display: flex; align-items: center; gap: 6px;">
<img src="/avatar.png" width="32" height="32" style="border-radius: 50%;" />
<strong style="font-size: 14px;">Task Name</strong>
</div>
</template>
<!-- Custom 'name' column cell content -->
<template #column-name="{ task, column, value }">
<div style="display: flex; align-items: center; gap: 6px;">
<img src="/user-avatar.png" width="20" height="20" style="border-radius: 50%;" />
<span v-html="value"></span>
<span
v-if="task.priority"
style="
background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
color: white;
padding: 2px 6px;
border-radius: 10px;
font-size: 11px;
font-weight: 600;
"
>
P-{{ task.priority }}
</span>
</div>
</template>
<!-- Custom other columns, e.g., custom field 'custom' -->
<template #column-custom="{ task, column, value }">
<div style="display: flex; align-items: center; gap: 4px;">
<span
v-if="typeof value === 'number'"
style="
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
color: white;
padding: 2px 8px;
border-radius: 12px;
font-size: 12px;
font-weight: 600;
"
>
💰 {{ value.toLocaleString() }}
</span>
<span
v-else-if="typeof value === 'string'"
style="
background: #e8f5e9;
color: #2e7d32;
padding: 2px 8px;
border-radius: 4px;
font-size: 12px;
border: 1px solid #81c784;
"
>
📝 {{ value }}
</span>
<span v-else style="color: #999;">-</span>
</div>
</template>
</GanttChart>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import { GanttChart } from 'jordium-gantt-vue3'
import 'jordium-gantt-vue3/dist/assets/jordium-gantt-vue3.css'
import type { Task, TaskListConfig, TaskListColumnConfig } from 'jordium-gantt-vue3'
const tasks = ref<Task[]>([
{
id: 1,
name: 'Project Planning',
startDate: '2025-01-01',
endDate: '2025-01-10',
progress: 100,
priority: 1,
custom: 50000, // Custom field
},
{
id: 2,
name: 'Requirements Analysis',
startDate: '2025-01-11',
endDate: '2025-01-20',
progress: 60,
custom: 'Important', // Custom field
},
])
// Define column configuration
const taskListConfig = ref<TaskListConfig>({
columns: [
{ key: 'taskName', label: 'Task Name', visible: true, width: 300 },
{ key: 'assignee', label: 'Assignee', visible: true, width: 150 },
{ key: 'progress', label: 'Progress', visible: true, width: 100 },
{ key: 'custom', label: 'Custom', visible: true, width: 150 }, // Custom column
],
})
</script>
```
> **💡 Usage Notes**:
>
> - Slot name format: `header-{key}` and `column-{key}`, where `{key}` corresponds to `TaskListColumnConfig.key`
> - `column-{key}` slot receives three parameters:
> - `task`: Current task object (Task type)
> - `column`: Current column configuration object (TaskListColumnConfig type)
> - `value`: Current cell value (automatically obtained from `task[column.key]`)
> - You can mix slots and default rendering, only define slots for columns that need customization
> **⚠️ Migration Recommendation**:
>
> - **Strongly recommend migrating to declarative mode**: Use `task-list-column-render-mode="declarative"` with `TaskListColumn` component
> - Declarative mode provides better type hints, code organization, and maintainability
> - This configuration-based slot approach will be removed in future versions, please migrate soon
> - For migration examples, see [TaskListColumn Slots](#tasklistcolumn-slots) section
---
## ❓ FAQ
### How to integrate into existing project?
1. Install dependencies
2. Import component and styles
3. Pass in data
4. Listen to events and handle business logic
See [Contributing Guide](CONTRIBUTING.md) for details.
### Which browsers are supported?
- Chrome >= 90
- Firefox >= 88
- Safari >= 14
- Edge >= 90
---
## 📁 Project Structure
```
jordium-gantt-vue3/
├── src/ # Source code
│ ├── components/ # Vue components
│ │ ├── GanttChart.vue # Main Gantt chart component
│ │ ├── GanttToolbar.vue # Toolbar component
│ │ ├── Timeline.vue # Timeline component
│ │ ├── TaskBar.vue # Task bar component
│ │ ├── TaskRow.vue # Task row component
│ │ ├── TaskDrawer.vue # Task editing drawer
│ │ ├── MilestonePoint.vue # Milestone point component
│ │ ├── MilestoneDialog.vue # Milestone editing dialog
│ │ ├── TaskContextMenu.vue # Context menu component
│ │ ├── TaskList/ # Task list module (modular refactoring)
│ │ │ ├── TaskList.vue # Task list main component
│ │ │ ├── TaskListColumn.vue # Declarative column component
│ │ │ ├── index.ts # Module exports
│ │ │ └── composables/ # Task list related composables
│ │ │ ├── useTaskListLayout.ts # Virtual scrolling and layout calculation
│ │ │ ├── useTaskListColumns.ts # Column configuration management
│ │ │ ├── useTaskListResize.ts # Container size management
│ │ │ ├── useTaskListEventHandlers.ts # Event handling logic
│ │ │ └── useTaskParentCalculation.ts # Parent task data calculation
│ │ └── index.ts # Unified component exports
│ ├── models/ # Data models
│ │ ├── classes/ # Class definitions
│ │ │ ├── Task.ts # Task class
│ │ │ ├── Milestone.ts # Milestone class
│ │ │ └── Language.ts # Language configuration class
│ │ ├── configs/ # Configuration interfaces
│ │ │ ├── TaskListConfig.ts # Task list configuration
│ │ │ ├── TaskBarConfig.ts # Task bar configuration
│ │ │ ├── TimelineConfig.ts # Timeline configuration
│ │ │ └── ToolbarConfig.ts # Toolbar configuration
│ │ └── types/ # Type definitions
│ │ ├── TimelineDataTypes.ts # Timeline data types
│ │ ├── TimelineScale.ts # Timeline scale types
│ │ └── TimelineCompat.ts # Compatibility types
│ ├── composables/ # Global composables
│ │ ├── useI18n.ts # Internationalization
│ │ ├── useMessage.ts # Message notifications
│ │ ├── useTaskRowDrag.ts # Task row dragging
│ │ └── useTaskListColumns.ts # Column configuration (migrated to TaskList/composables)
│ ├── styles/ # Style files
│ │ ├── app.css # Main styles
│ │ ├── list.css # List styles
│ │ ├── theme-variables.css # Theme variables
│ │ └── index.ts # Style exports
│ ├── utils/ # Utility functions
│ │ ├── canvasUtils.ts # Canvas utilities
│ │ ├── perfMonitor.ts # Performance monitoring
│ │ ├── predecessorUtils.ts # Predecessor task utilities
│ │ └── taskTreeUtils.ts # Task tree utilities
│ └── index.ts # Main entry file
├── demo/ # Online demo code
│ ├── App.vue # Demo application
│ ├── data.json # Sample data
│ ├── locales/ # Locale files
│ └── ...
├── docs/ # Documentation
│ └── TaskList-重构测试清单.md # Refactoring documentation
├── npm-demo/ # NPM package usage example
├── npm-webpack-demo/ # Webpack integration example
├── public/ # Public assets
│ └── assets/ # Static resources
└── package.json # Project configuration
```
### Modular Design Highlights
#### TaskList Modular Refactoring
The TaskList component has been deeply refactored with a modular design, improving code maintainability:
**Refactoring Results:**
- Main component reduced from 686 lines to 361 lines (-47%)
- Logic separated into 5 specialized composables by responsibility
- Each module has a single responsibility, easy to test and maintain
**Composables Responsibility Division:**
- `useTaskListLayout` - Virtual scrolling and layout calculation
- `useTaskListColumns` - Column configuration management and style calculation
- `useTaskListResize` - Container size monitoring and ResizeObserver management
- `useTaskListEventHandlers` - Global event handling and scroll synchronization
- `useTaskParentCalculation` - Parent task data calculation and task tree traversal
---
## 🔗 Related Links
- **Live Demo**: [https://nelson820125.github.io/jordium-gantt-vue3/](https://nelson820125.github.io/jordium-gantt-vue3/)
- **GitHub**: [https://github.com/nelson820125/jordium-gantt-vue3](https://github.com/nelson820125/jordium-gantt-vue3)
- **npm**: [https://www.npmjs.com/package/jordium-gantt-vue3](https://www.npmjs.com/package/jordium-gantt-vue3)
- **Changelog**: [CHANGELOG.md](./CHANGELOG.md)
- **Contributing Guide**: [CONTRIBUTING.md](./CONTRIBUTING.md)
---
## 🤝 Contributing
Welcome to submit Issues and Pull Requests!
For detailed contributing guide, please see [CONTRIBUTING.md](./CONTRIBUTING.md)。
### Contributors
Thanks to all developers who contributed to this project
View the complete [Contributors list](./CONTRIBUTORS.md)。
---
## <20> 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
---
<p align="center">
If this project helps you, please give it a ⭐️ to support it!
</p>