leafer

Full bundle (98KB min+gzip), includes leafer-ui and all @leafer-in/* plugin packages, making management and upgrades easier.

You can reduce bundle size by using importing sub-packages, while still keeping official examples directly usable. Please also check the notes!

web version    worker version    node version    mini-program version

Runs in Web environments and supports mobile devices.

Installation

npm

npm install leafer

pnpm

pnpm add leafer

yarn

yarn add leafer

bun

bun add leafer

We also provide a Playground environment and a create-leafer CLI tool to help you quickly try the official examples.

Or use via script tag

web.min

<script src="https://unpkg.com/leafer@2.3.2/dist/web.min.js"></script>
<script>
  const { Leafer, Editor, Robot, Animate } = LeaferUI
  // ...
</script>

web

<script src="https://unpkg.com/leafer@2.3.2/dist/web.js"></script>
<script>
  const { Leafer, Editor, Robot, Animate } = LeaferUI
  // ...
</script>

module.min

<script type="module">
  import {
    Leafer,
    Editor,
    Arrow,
  } from 'https://unpkg.com/leafer@2.3.2/dist/web.module.min.js'
  // ...
</script>

module

<script type="module">
  import {
    Leafer,
    Editor,
    Arrow,
  } from 'https://unpkg.com/leafer@2.3.2/dist/web.module.js'
  // ...
</script>

Updates

Learn how to quickly update versions.

Usage

The usage, global API, and behavior are consistent with leafer-ui. You only need to change the package name (no need to import plugins), and all official examples will work directly.

Import sub-packages

You can import sub-packages to include only leafer-ui and required plugins, avoiding unnecessary bundle size.

1. When using npm or yarn, you can directly import sub-packages like leafer-ui and @leafer-in/*.

2. When using bun, sub-package importing is not supported yet.

3. When using pnpm, you must manually hoist sub-packages to make them importable.

Add one of the following configurations to .npmrc or pnpm-workspace.yaml:

.npmrc

public-hoist-pattern[]=leafer-ui
public-hoist-pattern[]=@leafer-in/*

pnpm-workspace.yaml

hoist-pattern:
  - leafer-ui
  - @leafer-in/*

When using import sub-packages, you must NOT import the leafer package, otherwise bundle size reduction will not work.

Playground environment

If you want to run official examples directly, use the Playground environment.

Getting started

leafer

// #图形编辑器 [简洁创建]
import { App, Rect } from 'leafer' // 自动导入 leafer-ui 和所有插件

const app = new App({
    view: window,
    editor: {}  //  配置 editor 会自动创建并添加 app.editor 实例、tree 层、sky 层
})

app.tree.add(Rect.one({ editable: true, fill: '#FEB027', cornerRadius: [20, 0, 0, 20] }, 100, 100))
app.tree.add(Rect.one({ editable: true, fill: '#FFE04B', cornerRadius: [0, 20, 20, 0] }, 300, 100))

import sub-packages

// #图形编辑器 [简洁创建]
import { App, Rect } from 'leafer-ui'
import '@leafer-in/editor' // 导入图形编辑器插件
import '@leafer-in/viewport' // 导入视口插件 (可选)

const app = new App({
    view: window,
    editor: {}  //  配置 editor 会自动创建并添加 app.editor 实例、tree 层、sky 层
})

app.tree.add(Rect.one({ editable: true, fill: '#FEB027', cornerRadius: [20, 0, 0, 20] }, 100, 100))
app.tree.add(Rect.one({ editable: true, fill: '#FFE04B', cornerRadius: [0, 20, 20, 0] }, 300, 100))