vue3怎么使用element-plus的dialog

优点

摆脱繁琐的 visible 的命名，以及反复的重复 dom。

想法

将 dialog 封装成一个函数就能唤起的组件。如下：

addDialog({
  title: "测试", //弹窗名
  component: TestVue, //组件
  width: "400px", //弹窗大小
  props: {
    //传给组件的参数
    id: 0
  },
  callBack: (data: any) => {
    //当弹窗任务结束后，调用父页面的回掉函数。（比如我新增完成了需要刷新列表页面）
    console.log("回调函数", data)
  }
})

基于 el-dialog 进行初步封装

// index.ts
import { reactive } from "vue"
type dialogOptions = {
  title: string
  component: any
  props?: Object
  width: string
  visible?: any
  callBack?: Function
}
export const dialogList: dialogOptions[] = reactive([])

export const addDialog = (options: dialogOptions) => {
  dialogList.push(Object.assign(options, { visible: true }))
}

export const closeDialog = (item: dialogOptions, i: number, args: any) => {
  dialogList.splice(i, 1)
  item.callBack && item.callBack(...args)
}

<template>
  <Teleport to="body">
    <el-dialog
      v-for="(item, index) in dialogList"
      :key="index"
      :title="item.title"
      :width="item.width"
      v-model="item.visible"
    >
      <component :is="item.component" v-bind="item.props" @close="(...args:any) => closeDialog(item, index, args)" />
    </el-dialog>
  </Teleport>
</template>

<script setup lang="ts">
  import { dialogList, closeDialog } from "./index"
</script>

• 首先定义了 dialogList,它包含了所有弹窗的信息。

• component 使用 componet is 去动态加载子组件

• addDialog 调用唤起弹窗的函数

  

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• closeDialog 关闭弹窗的函数

在app.vue中挂载

<script setup>
import Mydialog from "@/components/gDialog/index.vue"
</script>

<template>
 <router-view />
 <Mydialog></Mydialog>
</template>

<style scoped>

</style>

使用

创建一个弹窗组件

<!-- test.vue -->
<template>
  父弹窗
  <el-button type="primary" @click="openChildDialog">打开子dialog</el-button>
  <el-button type="primary" @click="closeDialog">关闭弹窗</el-button>
</template>

<script setup lang="ts">
  import { addDialog } from "@/components/gDialog/index"
  import childVue from "./child.vue"
  const props = defineProps(["id"])
  console.log(props.id, "props")
  const emit = defineEmits(["close"])
  const closeDialog = () => {
    emit("close", 1, 2, 34)
  }
  const openChildDialog = () => {
    addDialog({
      title: "我是子dialog",
      width: "500px",
      component: childVue
    })
  }
</script>

在列表页面唤醒弹窗

<!-- list.vue -->
<template>
  列表页
  <el-button type="primary" @click="openDialog">打开dialog</el-button>
</template>
<script setup lang="ts">
import { addDialog } from "@/components/gDialog/index"
import TestDialog from "./test.vue"
const openDialog = () => {
  addDialog({
    title: "我是dialog",
    width: "500px",
    props:{
      id:0
    }
    component: TestDialog,
    callBack: (data: any) => {
      //当弹窗任务结束后，调用父页面的回掉函数。（比如我新增完成了需要刷新列表页面）
      console.log("回调函数", data)
    }
  })
}

多层级弹窗嵌套

<!-- child.vue -->
<template>
  子弹窗
  <el-button type="primary" @click="closeDialog">关闭弹窗</el-button>
</template>

<script setup lang="ts">
  import { addDialog } from "@/components/gDialog/index"
  const emit = defineEmits(["close"])
  const closeDialog = () => {
    emit("close", 1, 2, 34)
  }
</script>