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y-web-components-tools

v0.2.1

Published

A tool for writing web components with Vue SFC syntax highlighting

Readme

web-components-cli


使用 Vue SFC 模式编写 Web Components

安装

npm i -g y-web-components-tools
or
yarn add -g y-web-components-tools

使用

创建 .wcp (web components 的缩写)文件

采用 vue 三段式书写方式

// test.wcp
<template>
  <div class="container">
    box
  </div>
</template>

<script lang="js">
class BlueBox extends HTMLElement{
  constructor(){
    super("fff")  // 必须要有的元素
  }

  connectedCallback(){
    setTimeout(() => {
      this.eventBind()
    }, 200);
  }
  eventBind(){
    this._rootShadow.querySelector('.container').onclick = function(){
      console.log('aaa')
    }
  }
}
</script>
<style>
.container{
  background: blue;
  width: 200px;
  height: 200px;
}
</style>

文件转译

ywcp build test.wcp

该命令会在 wcp 文件下生成相同的 js 文件,内容如下

const __template__ = `
  <style>
.container{
  background: blue;
  width: 200px;
  height: 200px;
}
</style>
  <div class="container">
    box
  </div>
`
class BlueBox extends HTMLElement{
  constructor(){super("fff")
    this._rootShadow = this.attachShadow({mode:'open'})
    this._rootShadow.innerHTML = __template__
  }

  connectedCallback(){
    setTimeout(() => {
      this.eventBind()
    }, 200);
  }
  eventBind(){
    this._rootShadow.querySelector('.container').onclick = function(){
      console.log('aaa')
    }
  }
}
customElements.define("blue-box", BlueBox)

目录监听

单个文件可使用 ywcp build *.wcp 来进行转译,但是如果一个项目中有多个 wcp 文件时,再去手动转译时就 会比较麻烦,此时可用 ywcp watch 进行目录的监听。该命令会持续监听 wcp 文件的变动,并实时在文件同级目录 下生成 js 文件

scss

wcp 文件现已支持 scss 文件的转译,和 vue 中使用方法相同, 只需要添加 lang="scss" 即可使用。

关于 scoped 的问题
由于 web components 天然支持 style 隔离, 所以无需添加 scoped

相关

web components 开发