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@yh-ui/flow

v0.1.30

Published

YH-UI High-performance Flow Chart Component

Readme

@yh-ui/flow


✨ 特性

  • 🚀 高性能渲染 — 基于 SVG + Canvas 混合渲染,轻松支持 1000+ 节点
  • 🎯 拖拽连线 — 直觉式交互,支持多种连线类型(直线、折线、贝塞尔曲线)
  • 🧩 自定义节点 — 完全自定义节点外观,支持复杂 Vue 组件作为节点
  • 📐 内置布局算法 — 支持 DAG 有向无环图自动布局(dagre)
  • 🔌 插件化扩展 — 迷你地图、工具栏、右键菜单等均为可选插件
  • 🌐 SSR 安全 — 服务端渲染兼容,无 window/document 依赖问题
  • 🔒 完整 TypeScript — 所有 API 均有精确类型定义

📦 安装

# pnpm(推荐)
pnpm add @yh-ui/flow

# npm
npm install @yh-ui/flow

🔨 快速开始

基础流程图

<script setup lang="ts">
import { YhFlow, YhFlowNode, YhFlowEdge } from '@yh-ui/flow'
import '@yh-ui/flow/dist/style.css'
import type { FlowNode, FlowEdge } from '@yh-ui/flow'

const nodes: FlowNode[] = [
  { id: '1', type: 'input', label: '开始', position: { x: 250, y: 0 } },
  { id: '2', label: '处理数据', position: { x: 100, y: 100 } },
  { id: '3', label: '校验结果', position: { x: 400, y: 100 } },
  { id: '4', type: 'output', label: '完成', position: { x: 250, y: 200 } }
]

const edges: FlowEdge[] = [
  { id: 'e1-2', source: '1', target: '2' },
  { id: 'e1-3', source: '1', target: '3' },
  { id: 'e2-4', source: '2', target: '4' },
  { id: 'e3-4', source: '3', target: '4' }
]
</script>

<template>
  <YhFlow :nodes="nodes" :edges="edges" style="width: 100%; height: 600px">
    <!-- 迷你地图插件 -->
    <YhFlowMiniMap />
    <!-- 工具栏插件 -->
    <YhFlowControls />
    <!-- 背景网格 -->
    <YhFlowBackground variant="dots" />
  </YhFlow>
</template>

自定义节点

<script setup lang="ts">
// CustomNode.vue — 自定义节点组件
import { YhFlowHandle } from '@yh-ui/flow'
defineProps<{ data: { label: string; status: 'success' | 'error' | 'pending' } }>()
</script>

<template>
  <div class="custom-node" :class="`status-${data.status}`">
    <!-- 输入连接点 -->
    <YhFlowHandle type="target" position="top" />
    <div class="node-content">
      <span class="status-icon">{{ data.status === 'success' ? '✅' : '⏳' }}</span>
      <span>{{ data.label }}</span>
    </div>
    <!-- 输出连接点 -->
    <YhFlowHandle type="source" position="bottom" />
  </div>
</template>
<script setup lang="ts">
import { YhFlow } from '@yh-ui/flow'
import CustomNode from './CustomNode.vue'

// 注册自定义节点类型
const nodeTypes = { custom: CustomNode }

const nodes = [
  {
    id: '1',
    type: 'custom',
    data: { label: '数据采集', status: 'success' },
    position: { x: 0, y: 0 }
  },
  {
    id: '2',
    type: 'custom',
    data: { label: '数据处理', status: 'pending' },
    position: { x: 200, y: 100 }
  }
]
</script>

<template>
  <YhFlow :nodes="nodes" :node-types="nodeTypes" style="height: 500px" />
</template>

自动布局(dagre)

import { useFlowLayout } from '@yh-ui/flow'
import type { FlowNode, FlowEdge } from '@yh-ui/flow'

const { autoLayout } = useFlowLayout()

// 对已有节点和连线自动计算坐标
const { nodes: layoutedNodes, edges: layoutedEdges } = autoLayout(nodes, edges, {
  direction: 'TB', // 'TB'(上→下)| 'LR'(左→右)
  nodeSpacing: 50,
  rankSpacing: 100
})

📚 组件 API

YhFlow 主组件

| 属性 | 类型 | 默认值 | 说明 | | ----------------------- | --------------------------- | ------------- | ------------------ | | nodes | FlowNode[] | [] | 节点数据 | | edges | FlowEdge[] | [] | 连线数据 | | nodeTypes | Record<string, Component> | {} | 自定义节点类型 | | edgeTypes | Record<string, Component> | {} | 自定义连线类型 | | fitView | boolean | false | 初始化时自适应视图 | | minZoom | number | 0.5 | 最小缩放比例 | | maxZoom | number | 2 | 最大缩放比例 | | snapToGrid | boolean | false | 是否开启网格对齐 | | snapGrid | [number, number] | [15, 15] | 网格对齐尺寸 | | selectable | boolean | true | 节点是否可选中 | | multiSelectionKeyCode | string | 'Meta' | 多选按键 | | deleteKeyCode | string | 'Backspace' | 删除按键 |

事件

| 事件 | 说明 | | --------------- | -------------------------- | | @node-click | 点击节点 | | @edge-click | 点击连线 | | @nodes-change | 节点变更(移动/选中/删除) | | @edges-change | 连线变更 | | @connect | 建立新连接 | | @pane-click | 点击画布空白区 |

插槽

| 插槽 | 说明 | | -------------- | ------------------------------------ | | default | 插入插件组件(MiniMap、Controls 等) | | node-toolbar | 节点工具栏 |


🔌 可用插件

<YhFlow>
  <!-- 迷你地图 -->
  <YhFlowMiniMap position="bottom-right" />

  <!-- 缩放控制栏 -->
  <YhFlowControls position="bottom-left" :show-fit-view="true" />

  <!-- 背景 -->
  <YhFlowBackground variant="dots" gap="16" color="#aaa" />
</YhFlow>

⚠️ 注意事项

  • 容器需要固定高度YhFlow 需要父容器有明确的 height,否则无法正确渲染
  • SSR:在 Nuxt 3 中需使用 <ClientOnly> 包裹或设置 ssr: false
    <ClientOnly>
      <YhFlow :nodes="nodes" :edges="edges" style="height: 600px" />
    </ClientOnly>
  • 样式:需手动引入 @yh-ui/flow/dist/style.css,或通过 @yh-ui/nuxt 自动注入

🔗 相关资源

📄 开源协议

MIT License © 2024-present YH-UI Team