914 lines
38 KiB
Markdown
914 lines
38 KiB
Markdown
[English](./README.md) | 简体中文
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<p align="center"><img src="https://tencent.github.io/omi/assets/omi-logo2019.svg" alt="omi" width="100"/></p>
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<p align="center"><img src="https://tencent.github.io/omi/assets/omi-inside-outside.jpg" alt="omi" width="1000"/></p>
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<h2 align="center">Omi - 前端跨框架跨平台框架</h2>
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<p align="center"><b>基于 Web Components 并支持 IE8+(omio),小程序(omip) 和 任意前端框架集成</b></p>
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## Omi 生态
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[→ Omi 生态学习路线图](https://github.com/Tencent/omi/tree/master/assets/rm.md)
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#### 基础生态
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| **项目** | **描述** |
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| ------------------------------- | ----------------------------------- |
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| [omi-docs](https://tencent.github.io/omi/site/docs/cn.html)| Omi 官方文档 |
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| [omim![](https://raw.githubusercontent.com/dntzhang/cax/master/asset/hot.png)](https://github.com/Tencent/omi/tree/master/packages/omim)| Omi 打造的跨框架 Material Design UI 组件库, 任意框架可以使用,([DOCS & REPL](https://tencent.github.io/omi/packages/omim/docs/build/cn.html) && [加入我们](https://github.com/Tencent/omi/tree/master/packages/omim#contribution)!)|
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| [omio![](https://raw.githubusercontent.com/dntzhang/cax/master/asset/hot.png) ](https://github.com/Tencent/omi/tree/master/packages/omio)| 兼容老浏览器的 Omi 版本(支持到IE8+)|
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| [omis](https://github.com/Tencent/omi/tree/master/packages/omis)| 服务端同构渲染解决方案(目前只能用 omio) |
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| [omiu](https://tencent.github.io/omi/packages/omiu/examples/build/zh-cn.html)| 简单 Omi UI|
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| [omi-router ](https://github.com/Tencent/omi/tree/master/packages/omi-router) |Omi 官方路由,超级小的尺寸,只有 1KB 的 js|
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| [omi-devtools](https://github.com/f/omi-devtools)| 谷歌浏览器开发工具扩展|
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| [omi-cli](https://github.com/Tencent/omi/tree/master/packages/omi-cli)| 项目脚手架工具,各种模板任你选 [→ 基础模板](https://github.com/Tencent/omi/tree/master/packages/omi-cli/template) and [→ 其他模板](https://github.com/omijs) |
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|[omil](https://github.com/Wscats/omil)| Omi components 的 Webpack loader |
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| [omi-snippets](https://github.com/Wscats/omi-snippets) | VSCodse omi 文件扩展, [立即安装!](https://marketplace.visualstudio.com/items?itemName=Wscats.omi-snippets)|
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#### 小程序生态
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| **项目** | **描述** |
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| ------------------------------- | ----------------------------------- |
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| [omi-cloud![](https://raw.githubusercontent.com/dntzhang/cax/master/asset/hot.png) ](https://github.com/Tencent/omi/tree/master/packages/omi-cloud)| 小程序•云开发|
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| [omip![](https://raw.githubusercontent.com/dntzhang/cax/master/asset/hot.png) ](https://github.com/Tencent/omi/tree/master/packages/omip)| 直接使用 Omi 开发小程序或 H5 SPA|
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| [mps![](https://raw.githubusercontent.com/dntzhang/cax/master/asset/hot.png) ](https://github.com/Tencent/omi/tree/master/packages/mps)| 原生小程序增强框架(JSX + Less 输出 WXML + WXSS),也支持 QQ 轻应用 |
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| [cax![](https://raw.githubusercontent.com/dntzhang/cax/master/asset/hot.png)](https://github.com/Tencent/omi/tree/master/packages/cax)| 小程序 Canvas 和 SVG 渲染引擎 |
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| [omix](https://github.com/Tencent/omi/tree/master/packages/omix)| 极小却精巧的小程序框架|
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| [omi-mp](https://github.com/Tencent/omi/tree/master/packages/omi-mp)| 通过微信小程序开发和生成 Web 单页应用(H5 SPA)|
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| [comi](https://github.com/Tencent/omi/tree/master/packages/comi)| 小程序代码高亮和 markdown 渲染组件 |
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| [wx-touch-event](https://github.com/qbright/wx-touch-event)| 基于 AlloyFinger/omi-finger 改造的小程序手势解决方案 |
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#### 其他
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| **项目** | **描述** |
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| ------------------------------- | ----------------------------------- |
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| [md2site](https://tencent.github.io/omi/assets/md2site/)| 用 markdown 生成静态网站文档.|
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| [omi-mvvm](https://github.com/Tencent/omi/blob/master/tutorial/omi-mvvm.cn.md)| MVVM 王者归来, [mappingjs](https://github.com/Tencent/omi/tree/master/packages/mappingjs) 强力加持。|
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| [omi-chart](https://github.com/Tencent/omi/tree/master/packages/omi-chart)| 一个 chart-x 标签搞定报表|
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| [mp-mvvm ](https://github.com/Tencent/omi/tree/master/packages/mp-mvvm)| 小程序插上 MVVM 的翅膀, [mappingjs](https://github.com/Tencent/omi/tree/master/packages/mappingjs) 强力加持。|
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| [omi-30-seconds](https://github.com/Tencent/omi/tree/master/packages/omi-30-seconds)| 30 秒理解一段有用的 Omi 代码片段.|
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| [omi-swiper](https://github.com/loo41/Omi-Swiper)| Omi + Swiper |
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| [omi-vscode](https://github.com/ZainChen/omi-vscode)| Vscode extension for omi, [Install now!](https://marketplace.visualstudio.com/items?itemName=ZainChen.omi) |
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| [omi-sprite](https://github.com/Tencent/omi/tree/master/packages/omi-sprite)| Web Components, JSX 和 Canvas 的完美融合|
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| [omi-canvas](https://github.com/Tencent/omi/tree/master/packages/omi-canvas)| Web Components, JSX 和 Canvas 的完美融合|
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| [omi-ex](https://github.com/Tencent/omi/tree/master/packages/omi-ex)| Omi.js 扩展(TypeScript) |
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| [omi-transform](https://github.com/Tencent/omi/tree/master/packages/omi-transform)|Omi 和 [css3transform](https://tencent.github.io/omi/packages/omi-transform/css3transform/) 完美结合. 让 css3 transform 在你的 Omi项目中变得超级简单.|
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| [omi-tap](https://github.com/Tencent/omi/releases/tag/v4.0.24)| Omi 原生支持 tap 事件(omi v4.0.24+)|
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| [omi-finger](https://github.com/Tencent/omi/tree/master/packages/omi-finger)|Omi 官方手势库|
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| [omi-touch](https://github.com/Tencent/omi/tree/master/packages/omi-touch)|丝般顺滑的触摸运动|
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| [omi-snap](https://github.com/Tencent/omi/blob/master/tutorial/omi-snap.cn.md)|预渲染骨架屏|
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|[omi-i18n](https://github.com/i18next/omi-i18n)| Omi 国际化解决方案 |
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| [omi-page](https://github.com/Tencent/omi/tree/master/packages/omi-page) | 基于 [page.js](https://github.com/visionmedia/page.js) 的 Omi 路由|
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### 特性
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- 框架无关,任何框架可以使用 Omi 自定义元素
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- 提供桌面、移动和小程序整体解决方案
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- [超快的更新和渲染](https://tencent.github.io/omi/packages/omi/examples/perfs/)
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- 小巧的尺寸
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- 拥有官方跨框架 UI 组件库 - [omim](https://tencent.github.io/omi/packages/omim/docs/build/cn.html)
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- 使用 [omio](https://github.com/Tencent/omi/tree/master/packages/omio) 可以兼容到 IE8
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- 真正的 [MVVM](https://github.com/Tencent/omi/blob/master/tutorial/omi-mvvm.cn.md), 拥有 [mappingjs](https://github.com/Tencent/omi/tree/master/packages/mappingjs) 强力支持
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- 支持 `TypeScript`
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- 响应式数据绑定
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- 增强了 CSS, [支持 rpx 单位](https://github.com/Tencent/omi/releases/tag/v4.0.26),基于 **750** 屏幕宽度
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- [基于 Shadow Dom 设计](https://developers.google.cn/web/fundamentals/web-components/shadowdom?hl=zh-cn)
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- 利用[Chrome 开发工具扩展 ](https://github.com/f/omi-devtools)轻松调试,[从 Chrome 应用商店安装](https://chrome.google.com/webstore/detail/omijs-devtools/pjgglfliglbhpcpalbpeloghnbceocmd/related)
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- 符合浏览器的发展趋势以及API设计理念
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- [**Web Components**](https://developers.google.com/web/fundamentals/web-components/) + [**JSX**](https://reactjs.org/docs/introducing-jsx.html) + [**HTM**](https://github.com/developit/htm) 融合为一个框架 Omi
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- Web Components 也可以数据驱动视图, `UI = fn(data)`
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- JSX 是开发体验最棒(智能提示)、[语法噪音最少](https://github.com/facebook/jsx#why-not-template-literals)、图灵完备的 UI 表达式,模板引擎不完备,模板字符串完备但是语法噪音太大
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- 看看[Facebook React 和 Web Components对比优势](https://www.cnblogs.com/rubylouvre/p/4072979.html),Omi 融合了各自的优点,而且给开发者自由的选择喜爱的方式
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- `Shadow DOM` 与 `Virtual DOM` 融合,Omi 既使用了`虚拟 DOM`,也是使用真实 `Shadow DOM`,让视图更新更准确更迅速
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- 局部 CSS 最佳解决方案(`Shadow DOM`),社区为局部 CSS 折腾了不少框架和库(使用js或json写样式,如:`Radium`,`jsxstyle`,`react-style`;与webpack绑定使用生成独特的className`文件名—类名—hash值`,如:`CSS Modules`,`Vue`),还有运行时注入`scoped atrr` 的方式,都是 hack 技术;`Shadow DOM Style` 是最完美的方案
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- 独创的 `Path Updating`的 `store` 系统,基于 Proxy 全自动化的精准更新,功耗低,自由度高,性能卓越,方便集成 `requestIdleCallback`,自动化按需更新局部视图
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对比同样开发 TodoApp, Omi 和 React 渲染完的 DOM 结构,Omi 使用 Shadow DOM 隔离样式和语义化结构:
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| **Omi** | **React** |
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|-|-|
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| ![Omi](./assets/omi-render.jpg) | ![React](./assets/react-render.jpg) |
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### TypeScript 智能提示
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```jsx
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import { h, WeElement, tag, classNames } from 'omi';
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import * as styles from './_index.less';
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interface ButtonProps {
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href?: string,
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disabled?: boolean,
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type?: 'default' | 'primary' | 'danger',
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htmltype?: 'submit' | 'button' | 'reset',
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onClick?: (e: any) => void
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}
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const TAG = 'o-button'
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declare global {
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namespace JSX {
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interface IntrinsicElements {
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[TAG]: Omi.Props & ButtonProps
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}
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}
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}
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@tag(TAG)
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export default class oButton extends WeElement<ButtonProps, {}> {
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...
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...
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...
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```
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<img src="./assets/ts.png" alt="omi" width="427"/>
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## 必须收藏的资源
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* [Comi 原理揭秘](https://github.com/Tencent/omi/blob/master/tutorial/comi-principle.md)
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* [Omip 编译 H5 原理揭秘](https://github.com/Tencent/omi/blob/master/tutorial/omip-h5.md)
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* [如何通过小程序实现跨平台开发](https://developers.weixin.qq.com/community/develop/article/doc/00002cda45c930d87a380a74351813)
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* [你必须收藏 ES6 Spread Operator 技巧](https://github.com/Tencent/omi/blob/master/tutorial/spread-operator.cn.md)
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* [Omi snap 骨架屏与快照](https://github.com/Tencent/omi/blob/master/tutorial/omi-snap.cn.md)
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* [Omio 兼容 IE8 踩坑之路](https://github.com/Tencent/omi/blob/master/tutorial/omio.cn.md)
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* [Omi 生态发布](https://github.com/Tencent/omi/blob/master/tutorial/ecosystem.cn.md)
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* [深入浅出 Shadow Dom](https://github.com/Tencent/omi/blob/master/tutorial/shadow-dom-in-depth.cn.md)
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* [HTM - JSX 的替代品?还是另一种选择?](https://github.com/Tencent/omi/blob/master/tutorial/omi-html.cn.md)
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* [MVVM 王者归来](https://github.com/Tencent/omi/blob/master/tutorial/omi-mvvm.cn.md)
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* [60FPS Animation In Omi](https://github.com/Tencent/omi/blob/master/tutorial/omi-transform.cn.md)
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* [Render Web Components To Native](https://github.com/Tencent/omi/blob/master/tutorial/render-web-components-to-native.cn.md)
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* [Web Components MDN](https://developer.mozilla.org/zh-CN/docs/Web/Web_Components)
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* [Web Components Google](https://developers.google.com/web/fundamentals/web-components/)
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* [Web Components Org](https://www.webcomponents.org/introduction)
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* [Proxy MDN](https://developer.mozilla.org/zh-CN/docs/Web/JavaScript/Reference/Global_Objects/Proxy)
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* [CSS Variables](https://developer.mozilla.org/zh-CN/docs/Web/CSS/Using_CSS_variables)
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* [CSS Shadow Parts](https://drafts.csswg.org/css-shadow-parts-1/)
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* [Part Theme Explainer](https://meowni.ca/posts/part-theme-explainer/)
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* [Platform HTML5](https://platform.html5.org/)
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* [使用 requestIdleCallback](https://div.io/topic/1370)
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* [A requestIdleCallback polyfill](https://gist.github.com/paullewis/55efe5d6f05434a96c36)
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* [Web Components 的力量](https://github.com/Tencent/omi/blob/master/tutorial/the-power-of-web-components.cn.md)
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* [ShadowRoot](https://developer.mozilla.org/zh-CN/docs/Web/API/ShadowRoot)
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* [Developer Tools support for Web Components in Firefox 63](https://blog.nightly.mozilla.org/2018/09/06/developer-tools-support-for-web-components-in-firefox-63/)
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---
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# 目录
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- [Omi 生态](#omi-生态)
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- [必须收藏的资源](#必须收藏的资源)
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- [一个 HTML 完全上手](#一个-html-完全上手)
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- [再花 30 秒完全上手](#再花-30-秒完全上手)
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- [快速入门](#快速入门)
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- [安装](#安装)
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- [项目模板](#项目模板)
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- [Hello Element](#hello-element)
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- [TodoApp](#todoapp)
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- [Store](#store)
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- [生命周期](#生命周期)
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- [调试工具](#调试工具)
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- [浏览器兼容](#浏览器兼容)
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- [相关链接](#相关链接)
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- [贡献者们](#贡献者们)
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- [维护者](#维护者)
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- [感谢](#感谢)
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- [License](#license)
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## 一个 HTML 完全上手
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下面这个页面不需要任何构建工具就可以执行
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* [→ 点击这里看执行结果](https://tencent.github.io/omi/packages/omi/examples/no-transpiler/)
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```html
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<!DOCTYPE html>
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<html>
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<head>
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<title>Omi demo without transpiler</title>
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</head>
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<body>
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<script src="https://tencent.github.io/omi/packages/omi/dist/omi.js"></script>
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<script>
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const { define, WeElement, html, render } = Omi
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define('my-counter', class extends WeElement {
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install() {
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this.data.count = 1
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this.sub = this.sub.bind(this)
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this.add = this.add.bind(this)
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}
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sub() {
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this.data.count--
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this.update()
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}
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add() {
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this.data.count++
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this.update()
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}
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render() {
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return html`
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<div>
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<button onClick=${this.sub}>-</button>
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<span>${this.data.count}</span>
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<button onClick=${this.add}>+</button>
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</div>
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`}
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})
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render(html`<my-counter />`, 'body')
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</script>
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</body>
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</html>
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```
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### 使用 store
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```html
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8" />
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<title>Omi demo without transpiler</title>
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</head>
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<body>
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<script src="https://tencent.github.io/omi/packages/omi/dist/omi.js"></script>
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<script>
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const { define, WeElement, html, render } = Omi
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define('my-counter', class extends WeElement {
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initUse() {
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return ['count']
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}
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install() {
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this.sub = this.sub.bind(this)
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this.add = this.add.bind(this)
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}
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sub() {
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this.store.data.count--
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}
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add() {
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this.store.data.count++
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}
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render() {
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return html`
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<div>
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<button onClick=${this.sub}>-</button>
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<span>${this.store.data.count}</span>
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<button onClick=${this.add}>+</button>
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</div>
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`}
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})
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render(html`<my-counter />`, 'body', {
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data: {
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count: 1
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}
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})
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</script>
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</body>
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</html>
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```
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通过上面脚本的执行,你已经定义好了一个自定义标签,可以不使用 render 方法,直接使用 `like-button` 标签:
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```jsx
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<body>
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<like-button></like-button>
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</body>
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```
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## 再花 30 秒完全上手
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你也可以使用现代化的 JS 语法,快速构建 Omi 项目:
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```js
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import { tag, WeElement, render } from 'omi'
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@tag('my-counter')
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class MyCounter extends WeElement {
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data = {
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count: 1
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}
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static css = `
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span{
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color: red;
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}`
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|
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sub = () => {
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this.data.count--
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this.update()
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}
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add = () => {
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this.data.count++
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this.update()
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}
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render() {
|
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return (
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<div>
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<button onClick={this.sub}>-</button>
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<span>{this.data.count}</span>
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<button onClick={this.add}>+</button>
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</div>
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)
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}
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}
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render(<my-counter />, 'body')
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```
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||
|
||
[→ counter demo](https://tencent.github.io/omi/packages/omi/examples/counter/)
|
||
|
||
<!--
|
||
你也可以定义成纯函数的形式:
|
||
|
||
```js
|
||
import { define, render } from 'omi'
|
||
|
||
define('my-counter', function() {
|
||
const [count, setCount] = this.use({
|
||
data: 0,
|
||
effect: function() {
|
||
document.title = `The num is ${this.data}.`
|
||
}
|
||
})
|
||
|
||
this.useCss(`button{ color: red; }`)
|
||
|
||
return (
|
||
<div>
|
||
<button onClick={() => setCount(count - 1)}>-</button>
|
||
<span>{count}</span>
|
||
<button onClick={() => setCount(count + 1)}>+</button>
|
||
</div>
|
||
)
|
||
})
|
||
|
||
render(<my-counter />, 'body')
|
||
```
|
||
|
||
如果你不需要 effect 方法, 可以直接使用 `useData`:
|
||
|
||
```js
|
||
const [count, setCount] = this.useData(0)
|
||
``` -->
|
||
|
||
## 快速入门
|
||
|
||
### 安装
|
||
|
||
```bash
|
||
$ npm i omi-cli -g # install cli
|
||
$ omi init my-app # 初始化项目,也可以在空目录里执行 'omi init'
|
||
$ cd my-app # 如果在空目录里执行 'omi init' 忽略这条命令
|
||
$ npm start # 开发
|
||
$ npm run build # 编译发布
|
||
```
|
||
|
||
> `npx omi-cli init my-app` 也支持(要求 npm v5.2.0+)
|
||
|
||
目录说明:
|
||
|
||
```
|
||
├─ config
|
||
├─ public
|
||
├─ scripts
|
||
├─ src
|
||
│ ├─ assets
|
||
│ ├─ elements //存放所有 custom elements
|
||
│ ├─ store //存放所有页面的 store
|
||
│ ├─ admin.js //入口文件,会 build 成 admin.html
|
||
│ └─ index.js //入口文件,会 build 成 index.html
|
||
```
|
||
|
||
#### Scripts
|
||
|
||
```json
|
||
"scripts": {
|
||
"start": "node scripts/start.js",
|
||
"build": "PUBLIC_URL=. node scripts/build.js",
|
||
"build-windows": "set PUBLIC_URL=.&& node scripts/build.js",
|
||
"fix": "eslint src --fix"
|
||
}
|
||
```
|
||
|
||
你也可以设置 PUBLIC_URL, 比如:
|
||
|
||
```json
|
||
...
|
||
"build": "PUBLIC_URL=https://fe.wxpay.oa.com/dv node scripts/build.js",
|
||
"build-windows": "set PUBLIC_URL=https://fe.wxpay.oa.com/dv&& node scripts/build.js",
|
||
...
|
||
```
|
||
|
||
#### 切换 omi, omio 和 reomi
|
||
|
||
增加或删除 package.json 里的 alias config 可以切换 omi 和 omio 渲染:
|
||
|
||
```js
|
||
"alias": {
|
||
"omi": "omio"
|
||
}
|
||
```
|
||
|
||
<!-- 关于编译网站的 url 前缀的设置,可以参考两个地址:
|
||
|
||
* [build problem](https://stackoverflow.com/questions/42686149/create-react-app-build-with-public-url)
|
||
* [build env doc](https://facebook.github.io/create-react-app/docs/adding-custom-environment-variables#referencing-environment-variables-in-the-html)
|
||
|
||
比如在 windows 下:
|
||
|
||
```json
|
||
"scripts": {
|
||
"start": "node scripts/start.js",
|
||
"_build": "node scripts/build.js",
|
||
"build":"set PUBLIC_URL=https://fe.wxpay.oa.com/dv&& npm run _build"
|
||
}
|
||
```
|
||
|
||
在 mac os 中:
|
||
|
||
```json
|
||
"scripts": {
|
||
"start": "node scripts/start.js",
|
||
"_build": "node scripts/build.js",
|
||
"build":"PUBLIC_URL=https://fe.wxpay.oa.com/dv npm run _build",
|
||
"fix": "eslint src --fix"
|
||
},
|
||
```
|
||
|
||
如果你只想使用相对地址:
|
||
|
||
```
|
||
"build":"set PUBLIC_URL=.&& npm run _build" //windows
|
||
"build":"PUBLIC_URL=. npm run _build", //mac os
|
||
``` -->
|
||
|
||
### 项目模板
|
||
|
||
| **Template Type**| **Command**| **Describe**|
|
||
| ------------ | -----------| ----------------- |
|
||
|基础模板(v3.3.0+)|`omi init my-app`| 基础模板,支持 omi 和 omio(IE8+)|
|
||
|小程序模板(v3.3.5+)|`omi init-p my-app`| Omi 开发小程序 |
|
||
|基础模板(v3.3.9+)|`omi init-o my-app`| 支持 IE8 的基础模板,只是 build 的时候支持 IE8,开发调试请用 IE9|
|
||
|支持预渲染快照骨架的模板|`omi init-snap my-app`| 基础模板,支持 omi 和 omio(IE8+),内置预渲染|
|
||
|TypeScript Template(omi-cli v3.3.0+)|`omi init-ts my-app`|使用 TypeScript 的模板|
|
||
|Mobile Template|`omi init-weui my-app`| 使用了 weui 和 omi-router 的移动 web app 模板|
|
||
|omi-mp Template(omi-cli v3.0.13+)|`omi init-mp my-app` |小程序开发 Web 的模板|
|
||
|MVVM Template(omi-cli v3.0.22+)|`omi init-mvvm my-app` |MVVM 模板|
|
||
<!-- |[SPA Template](https://tencent.github.io/omi/packages/omi-router/examples/spa/build/)(omi-cli v3.0.10+)|`omi init-spa my-app`|使用 omi-router 单页应用的模板| -->
|
||
|
||
基础模板(`omi init my-app`)是基于单页的 create-react-app 改造成多页的,有配置方面的问题可以查看 [create-react-app 用户指南](https://facebook.github.io/create-react-app/docs/getting-started)。
|
||
|
||
### Hello Element
|
||
|
||
先创建一个自定义元素:
|
||
|
||
```js
|
||
import { define, WeElement } from 'omi'
|
||
|
||
define('hello-element', class extends WeElement {
|
||
onClick = evt => {
|
||
// trigger CustomEvent
|
||
this.fire('abc', { name: 'dntzhang', age: 12 })
|
||
evt.stopPropagation()
|
||
}
|
||
|
||
//如果需要在 html 里直接使用 <hello-element></hello-element>,必须声明 propTypes
|
||
static propTypes = {
|
||
msg: String
|
||
}
|
||
|
||
static css = `
|
||
div {
|
||
color: red;
|
||
cursor: pointer;
|
||
}`
|
||
|
||
render(props) {
|
||
return (
|
||
<div onClick={this.onClick}>
|
||
Hello {props.msg}
|
||
<div>Click Me!</div>
|
||
</div>
|
||
)
|
||
}
|
||
})
|
||
```
|
||
|
||
使用该元素:
|
||
|
||
```js
|
||
import { define, render, WeElement } from 'omi'
|
||
import './hello-element'
|
||
|
||
define('my-app', class extends WeElement {
|
||
data = { abc: 'abc' }
|
||
|
||
// define CustomEvent Handler
|
||
onAbc = evt => {
|
||
// get evt data by evt.detail
|
||
this.data.abc = ' by ' + evt.detail.name
|
||
this.update()
|
||
}
|
||
|
||
static css = `
|
||
div{
|
||
color: green;
|
||
}`
|
||
}
|
||
|
||
render(props, data) {
|
||
return (
|
||
<div>
|
||
Hello {data.abc}
|
||
<hello-element
|
||
onAbc={this.onAbc}
|
||
msg="WeElement"
|
||
/>
|
||
</div>
|
||
)
|
||
}
|
||
})
|
||
|
||
render(<my-app name="Omi v4.0" />, 'body')
|
||
```
|
||
|
||
告诉 Babel 把 JSX 转化成 Omi.h() 的调用:
|
||
|
||
``` json
|
||
{
|
||
"presets": ["env", "omi"]
|
||
}
|
||
```
|
||
|
||
需要安装下面两个 npm 包支持上面的配置:
|
||
|
||
``` bash
|
||
"babel-preset-env": "^1.6.0",
|
||
"babel-preset-omi": "^0.1.1",
|
||
```
|
||
|
||
如果你使用 babel7,也可以使用如下包和配置:
|
||
|
||
```bash
|
||
npm install --save-dev @babel/preset-env
|
||
npm install --save-dev @babel/preset-react
|
||
```
|
||
|
||
```js
|
||
{
|
||
"presets": [
|
||
"@babel/preset-env",
|
||
[
|
||
"@babel/preset-react",
|
||
{
|
||
"pragma": "Omi.h"
|
||
}
|
||
]
|
||
]
|
||
}
|
||
```
|
||
|
||
如果不想把 css 写在 js 里,你可以使用 webpack [to-string-loader](https://www.npmjs.com/package/to-string-loader), 比如下面配置:
|
||
|
||
``` js
|
||
{
|
||
test: /[\\|\/]_[\S]*\.css$/,
|
||
use: [
|
||
'to-string-loader',
|
||
'css-loader'
|
||
]
|
||
}
|
||
```
|
||
|
||
如果你的 css 文件以 `_` 开头, css 会使用 to-string-loader. 如:
|
||
|
||
``` js
|
||
import { tag, WeElement render } from 'omi'
|
||
|
||
define('my-app', class extends WeElement {
|
||
|
||
css = require('./_index.css')
|
||
...
|
||
...
|
||
...
|
||
```
|
||
|
||
你也可以忘掉这一对繁琐的配置直接使用 omi-cli,不需要你配置任何东西。
|
||
|
||
### TodoApp
|
||
|
||
下面列举一个相对完整的 TodoApp 的例子:
|
||
|
||
```js
|
||
import { define, render, WeElement } from 'omi'
|
||
|
||
define('todo-list', class extends WeElement {
|
||
static propTypes = {
|
||
items: Array
|
||
}
|
||
|
||
render(props) {
|
||
return (
|
||
<ul>
|
||
{props.items.map(item => (
|
||
<li key={item.id}>{item.text}</li>
|
||
))}
|
||
</ul>
|
||
)
|
||
}
|
||
})
|
||
|
||
define('todo-app', class extends WeElement {
|
||
static observe = true
|
||
|
||
data = { items: [], text: '' }
|
||
|
||
render() {
|
||
return (
|
||
<div>
|
||
<h3>TODO</h3>
|
||
<todo-list items={this.data.items} />
|
||
<form onSubmit={this.handleSubmit}>
|
||
<input
|
||
id="new-todo"
|
||
onChange={this.handleChange}
|
||
value={this.data.text}
|
||
/>
|
||
<button>Add #{this.data.items.length + 1}</button>
|
||
</form>
|
||
</div>
|
||
)
|
||
}
|
||
|
||
handleChange = e => {
|
||
this.data.text = e.target.value
|
||
}
|
||
|
||
handleSubmit = e => {
|
||
e.preventDefault()
|
||
if (!this.data.text.trim().length) {
|
||
return
|
||
}
|
||
this.data.items.push({
|
||
text: this.data.text,
|
||
id: Date.now()
|
||
})
|
||
this.data.text = ''
|
||
}
|
||
})
|
||
|
||
render(<todo-app />, 'body')
|
||
```
|
||
|
||
### Store
|
||
|
||
Omi 的 Store 体系: 从根组件注入,在所有子组件可以共享。使用起来非常简单:
|
||
|
||
```js
|
||
import { define, render, WeElement } from 'omi'
|
||
|
||
define('my-hello', class extends WeElement {
|
||
render() {
|
||
//任意子组件的任意方法都可以使用 this.store 访问注入的 store
|
||
return <div>{this.store.name}</div>
|
||
}
|
||
})
|
||
|
||
define('my-app', class extends WeElement {
|
||
handleClick = () => {
|
||
//任意子组件的任意方法都可以使用 this.store 访问注入的 store
|
||
this.store.reverse()
|
||
this.update()
|
||
}
|
||
|
||
render() {
|
||
return (
|
||
<div>
|
||
<my-hello />
|
||
<button onclick={this.handleClick}>reverse</button>
|
||
</div>
|
||
)
|
||
}
|
||
})
|
||
|
||
const store = {
|
||
name: 'abc',
|
||
reverse: function() {
|
||
this.name = this.name.split("").reverse().join("")
|
||
}
|
||
}
|
||
//通过第三个参数注入
|
||
render(<my-app />, document.body, store)
|
||
```
|
||
|
||
与全局变量不同的是, 当有多个根节点的时候就可以注入多个 store,而全局变量只有一个。
|
||
|
||
<!--
|
||
使用 Store 体系可以告别 update 方法,基于 Proxy 的全自动属性追踪和更新机制。强大的 Store 体系是高性能的原因,除了靠 props 决定组件状态的组件,其余组件所有 data 都挂载在 store 上,
|
||
|
||
```js
|
||
export default {
|
||
data: {
|
||
items: [],
|
||
text: '',
|
||
firstName: 'dnt',
|
||
lastName: 'zhang',
|
||
fullName: function () {
|
||
return this.firstName + this.lastName
|
||
},
|
||
globalPropTest: 'abc', //更改我会刷新所有页面,不需要再组件和页面声明data依赖
|
||
ccc: { ddd: 1 } //更改我会刷新所有页面,不需要再组件和页面声明data依赖
|
||
},
|
||
globalData: ['globalPropTest', 'ccc.ddd'],
|
||
add: function () {
|
||
if (!this.data.text.trim().length) {
|
||
return;
|
||
}
|
||
this.data.items.push({
|
||
text: this.data.text,
|
||
id: Date.now()
|
||
})
|
||
this.data.text = ''
|
||
}
|
||
//默认 false,为 true 会无脑更新所有实例
|
||
//updateAll: true
|
||
}
|
||
```
|
||
|
||
自定义 Element 需要声明依赖的 data,这样 Omi store 根据自定义组件上声明的 data 计算依赖 path 并会按需局部更新。如:
|
||
|
||
```js
|
||
define('todo-app', class extends WeElement {
|
||
static get data() {
|
||
//如果你用了 store,这个只是用来声明依赖,按需 Path Updating
|
||
return { items: [], text: '' }
|
||
}
|
||
...
|
||
...
|
||
...
|
||
handleChange = (e) => {
|
||
this.store.data.text = e.target.value
|
||
}
|
||
|
||
handleSubmit = (e) => {
|
||
e.preventDefault()
|
||
this.store.add()
|
||
}
|
||
})
|
||
```
|
||
|
||
* 数据的逻辑都封装在了 store 定义的方法里 (如 store.add)
|
||
* 视图只负责传递数据给 store (如上面调用 store.add 或设置 store.data.text)
|
||
|
||
需要在 render 的时候从根节点注入 store 才能在所有自定义 Element 里使用 this.store:
|
||
|
||
```js
|
||
render(<todo-app></todo-app>, 'body', store)
|
||
```
|
||
|
||
[→ Store 完整的代码](https://github.com/Tencent/omi/blob/master/packages/omi/examples/store/main.js)
|
||
|
||
总结一下:
|
||
|
||
* store.data 用来列出所有属性和默认值(除去 props 决定的视图的组件)
|
||
* 组件和页面的 data 用来列出依赖的 store.data 的属性 (omi会记录path),按需更新
|
||
* 如果页面简单组件很少,可以 updateAll 设置成 true,并且组件和页面不需要声明 data,也就不会按需更新
|
||
* globalData 里声明的 path,只要修改了对应 path 的值,就会刷新所有页面和组件,globalData 可以用来列出所有页面或大部分公共的属性 Path -->
|
||
<!--
|
||
## Mitt
|
||
|
||
如果不想使用 store 的 data 体系,也可以使用发布订阅模式。比如在 Omi 中使用 [mitt](https://github.com/developit/mitt) 跨组件通讯:
|
||
|
||
* [cross-component-communication](https://github.com/Tencent/omi/blob/master/packages/omi-30-seconds/README.md#cross-component-communication) -->
|
||
|
||
<!--
|
||
如果你想要兼容 IE11,请使用 `omi-mobx` 代替 omi 自带的 observe,往下看..
|
||
|
||
### Omi Mobx
|
||
|
||
```js
|
||
import { tag, WeElement } from "omi"
|
||
import { observe } from "omi-mobx"
|
||
|
||
@observe
|
||
@tag("my-app")
|
||
class MyApp extends WeElement {
|
||
install() {
|
||
this.data.name = "omi"
|
||
}
|
||
|
||
onClick = () => {
|
||
this.data.name = "Omi V4.0"
|
||
}
|
||
|
||
render(props, data) {
|
||
return (
|
||
<div onClick={this.onClick}>
|
||
<h1>Welcome to {data.name}</h1>
|
||
</div>
|
||
)
|
||
}
|
||
}
|
||
``` -->
|
||
|
||
### 生命周期
|
||
|
||
| 钩子方法 | 触发时机 |
|
||
| ---------------- | -------------------------------------------- |
|
||
| `install` | 初始化安装 |
|
||
| `installed` | 插入到文档之后且安装完成 |
|
||
| `uninstall` | 从文档中卸载移除 |
|
||
| `beforeUpdate` | update 之前 |
|
||
| `updated` | update 之后 |
|
||
| `beforeRender` | `render()` 之前 |
|
||
| `receiveProps` | 父组件更新时候触发, 返回 false 可以阻止更新 |
|
||
|
||
## 调试工具
|
||
|
||
使用 [Omi 开发工具](https://chrome.google.com/webstore/detail/omijs-devtools/pjgglfliglbhpcpalbpeloghnbceocmd) 可以非常简单地调试和管理你的 UI。不需要任何配置,你只要安装然后就能调试。
|
||
|
||
既然 Omi 使用了 Web Components 和 Shadow-DOM, 所以不需要像 React 一样安装其他元素面板,只需要使用 Chrome 自带的 **Elements' sidebar** 便可,它和 React 开发者工具一样强大。
|
||
|
||
![Omi DevTools](https://github.com/f/omi-devtools/raw/master/omi-devtools.gif)
|
||
|
||
### 查看所有注册的元素
|
||
|
||
```js
|
||
console.log(Omi.elements)
|
||
```
|
||
|
||
<!--
|
||
## React 组件转成 Omi
|
||
|
||
举个例子,下面是吧 weui react 的 button 转成 weui omi 的 button 的例子 :
|
||
|
||
![react to omi](./assets/react-to-omi.png)
|
||
|
||
* [Diff Split](https://github.com/Tencent/omi/commit/9790fadaaf20cfede80bcf9213756a83fc8c3949?diff=split)
|
||
* [Diff Unified](https://github.com/Tencent/omi/commit/9790fadaaf20cfede80bcf9213756a83fc8c3949?diff=unified)
|
||
* [Before](https://github.com/Tencent/omi/blob/c8af654f1d5865dc557c0b4b8ad524f702a69be5/packages/omi-weui/src/omi-weui/elements/button/button.js)
|
||
* [After](https://github.com/Tencent/omi/blob/9790fadaaf20cfede80bcf9213756a83fc8c3949/packages/omi-weui/src/omi-weui/elements/button/button.js) -->
|
||
|
||
## 浏览器兼容
|
||
|
||
> [Omio](https://github.com/Tencent/omi/tree/master/packages/omio) - 兼容老浏览器的 Omi 版本(支持到IE8+)
|
||
|
||
|
||
Omi 4.0+ works in the latest two versions of all major browsers: Safari 10+, IE 11+, and the evergreen Chrome, Firefox, and Edge.
|
||
|
||
![→ Browsers Support](./assets/browsers-support.png)
|
||
|
||
[→ polyfills](https://github.com/webcomponents/webcomponentsjs)
|
||
|
||
```html
|
||
<script src="https://unpkg.com/@webcomponents/webcomponentsjs@2.0.0/webcomponents-bundle.js"></script>
|
||
```
|
||
|
||
## 贡献者们
|
||
|
||
<table><tbody>
|
||
<tr><td><a target="_blank" href="https://github.com/dntzhang"><img width="60px" src="https://avatars2.githubusercontent.com/u/7917954?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/LeeHyungGeun"><img width="60px" src="https://avatars2.githubusercontent.com/u/2471651?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/xcatliu"><img width="60px" src="https://avatars1.githubusercontent.com/u/5453359?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/1921622004"><img width="60px" src="https://avatars1.githubusercontent.com/u/19359217?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/yanceyou"><img width="60px" src="https://avatars2.githubusercontent.com/u/16320418?s=60&v=4"></a></td></tr><tr><td><a target="_blank" href="https://github.com/f"><img width="60px" src="https://avatars0.githubusercontent.com/u/196477?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/pasturn"><img width="60px" src="https://avatars0.githubusercontent.com/u/6126885?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/132yse"><img width="60px" src="https://avatars3.githubusercontent.com/u/12951461?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/akira-cn"><img width="60px" src="https://avatars0.githubusercontent.com/u/316498?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/ZainChen"><img width="60px" src="https://avatars3.githubusercontent.com/u/15615524?s=60&v=4"></a></td></tr><tr><td><a target="_blank" href="https://github.com/dangxuandev"><img width="60px" src="https://avatars1.githubusercontent.com/u/5436704?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/daizhan"><img width="60px" src="https://avatars0.githubusercontent.com/u/5318547?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/validalias"><img width="60px" src="https://avatars1.githubusercontent.com/u/44221844?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/elfman"><img width="60px" src="https://avatars3.githubusercontent.com/u/948001?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/NoBey"><img width="60px" src="https://avatars3.githubusercontent.com/u/10740524?s=60&v=4"></a></td></tr><tr><td><a target="_blank" href="https://github.com/hilkbahar"><img width="60px" src="https://avatars2.githubusercontent.com/u/12161006?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/eyea"><img width="60px" src="https://avatars0.githubusercontent.com/u/17020223?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/guisturdy"><img width="60px" src="https://avatars1.githubusercontent.com/u/7098619?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/KidneyFlower"><img width="60px" src="https://avatars1.githubusercontent.com/u/16027183?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/zhangsanshi"><img width="60px" src="https://avatars1.githubusercontent.com/u/3771933?s=60&v=4"></a></td></tr><tr><td><a target="_blank" href="https://github.com/xland"><img width="60px" src="https://avatars0.githubusercontent.com/u/2980915?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/winstonxie"><img width="60px" src="https://avatars3.githubusercontent.com/u/16422642?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/ghostzhang"><img width="60px" src="https://avatars3.githubusercontent.com/u/194242?s=60&v=4"></a></td>
|
||
<td><a target="_blank" href="https://github.com/jayZOU"><img width="60px" src="https://avatars3.githubusercontent.com/u/8576977?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/zhengbao"><img width="60px" src="https://avatars3.githubusercontent.com/u/1736166?s=60&v=4"></a></td></tr><tr><td><a target="_blank" href="https://github.com/vorshen"><img width="60px" src="https://avatars3.githubusercontent.com/u/10334783?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/akira-cn"><img width="60px" src="https://avatars3.githubusercontent.com/u/316498?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/loo41"><img width="60px" src="https://avatars3.githubusercontent.com/u/28095677?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/rainmanhhh"><img width="60px" src="https://avatars3.githubusercontent.com/u/13862623?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/nbompetsis"><img width="60px" src="https://avatars3.githubusercontent.com/u/11991105?s=60&v=4"></a></td></tr><tr><td><a target="_blank" href="https://github.com/CodeFalling"><img width="60px" src="https://avatars1.githubusercontent.com/u/5436704?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/daizhan"><img width="60px" src="https://avatars0.githubusercontent.com/u/5318547?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/ritschwumm"><img width="60px" src="https://avatars2.githubusercontent.com/u/547138?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/kahwee"><img width="60px" src="https://avatars3.githubusercontent.com/u/262105?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/alanyinjs"><img width="60px" src="https://avatars3.githubusercontent.com/u/25688258?s=60&v=4"></a></td></tr><tr><td><a target="_blank" href="https://github.com/electerious"><img width="60px" src="https://avatars2.githubusercontent.com/u/499088?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/nanhupatar"><img width="60px" src="https://avatars1.githubusercontent.com/u/27266016?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/ilker0"><img width="60px" src="https://avatars1.githubusercontent.com/u/23511412?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/MrGrabazu"><img width="60px" src="https://avatars2.githubusercontent.com/u/6928672?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/Tagir-A"><img width="60px" src="https://avatars2.githubusercontent.com/u/23556586?s=60&v=4"></a></td></tr><tr><td><a target="_blank" href="https://github.com/mahmut-gundogdu"><img width="60px" src="https://avatars2.githubusercontent.com/u/2217899?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/howel52"><img width="60px" src="https://avatars3.githubusercontent.com/u/9854818?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/yolio2003"><img width="60px" src="https://avatars1.githubusercontent.com/u/352931?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/loo41"><img width="60px" src="https://avatars3.githubusercontent.com/u/28095677?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/nbompetsis"><img width="60px" src="https://avatars1.githubusercontent.com/u/11991105?s=60&v=4"></a></td></tr><tr><td><a target="_blank" href="https://github.com/WozHuang"><img width="60px" src="https://avatars2.githubusercontent.com/u/22727100?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/web-padawan"><img width="60px" src="https://avatars2.githubusercontent.com/u/10589913?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/SuperHuangXu"><img width="60px" src="https://avatars1.githubusercontent.com/u/14816052?s=60&v=4"></a></td><td><a target="_blank" href="https://github.com/LastHeaven"><img width="60px" src="https://avatars1.githubusercontent.com/u/10590077?s=60&v=4"></a></td>
|
||
<td><a target="_blank" href="https://github.com/Wscats"><img width="60px" src="https://avatars3.githubusercontent.com/u/17243165?s=60&v=4"></a></td></tr><tr>
|
||
<td><a target="_blank" href="https://github.com/FAKER-A"><img width="60px" src="https://avatars2.githubusercontent.com/u/25676164?s=60&v=4"></a></td>
|
||
<td><a target="_blank" href="https://github.com/liulinboyi"><img width="60px" src="https://avatars2.githubusercontent.com/u/41336612?s=60&v=4"></a></td>
|
||
<td><a target="_blank" href="https://github.com/hulei"><img width="60px" src="https://avatars2.githubusercontent.com/u/6905072?s=60&v=4"></a></td> <td><a target="_blank" href="https://github.com/mtonhuang"><img width="60px" src="https://avatars2.githubusercontent.com/u/30364922?s=60&v=4"></a></td></tr></tbody></table>
|
||
|
||
## 维护者
|
||
|
||
- [@f](https://github.com/f)
|
||
- [@LeeHyungGeun](https://github.com/LeeHyungGeun)
|
||
- [@dntzhang](https://github.com/dntzhang)
|
||
- [@xcatliu](https://github.com/xcatliu)
|
||
|
||
任何 Omi 相关问题欢迎联系我们。也可以[加入 Omi QQ 群](https://github.com/Tencent/omi/issues/169)进行讨论交流。
|
||
|
||
## 感谢
|
||
|
||
* [preact](https://github.com/developit/preact)
|
||
* [htm](https://github.com/developit/htm)
|
||
* [create-react-app](https://github.com/facebook/create-react-app)
|
||
* [JSX](https://github.com/facebook/jsx)
|
||
* [JSONPatcherProxy](https://github.com/Palindrom/JSONPatcherProxy)
|
||
|
||
## License
|
||
|
||
MIT © Tencent
|