vue3+ts自定义插件

使用：

<template lang="html">
  <div></div>
</template>
<script lang="ts" setup>
import { ref, reactive, getCurrentInstance } from "vue";
const instance = getCurrentInstance();
console.log(instance?.proxy, "instance?.proxy?");
instance?.proxy?._loading.show();
setTimeout(() => {
  instance?.proxy?._loading.hide();
}, 5000);
</script>
<style lang="scss"></style>

全局组件：

loading/index.ts

import { createVNode,VNode,render, type App } from "vue";
import   Loading  from  "./index.vue"
export default {
    install(app: App) {
        const Vnode: VNode = createVNode(Loading);
        render(Vnode, document.body);
        app.config.globalProperties._loading = {
            show: Vnode.component?.exposed?.show,
            hide:Vnode.component?.exposed?.hide
        }
        
    console.log(app,'222',Vnode.component?.exposed)
    }
}

loading/index.vue

<template>
  <div v-if="isShow" class="loading">loading...</div>
</template>

<script setup lang="ts">
import { ref, reactive } from "vue";
const isShow = ref<boolean>(false);
const show = () => (isShow.value = true);
const hide = () => (isShow.value = false);
defineExpose({
  hide,
  show,
  isShow,
});
</script>

<style>
.loading {
  background: black;
  opacity: 0.8;
  font-size: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  color: white;
  position: absolute;
  width: 100vw;
}
</style>

在main.ts中控制

import Loading from "./components/loading";

export const app = createApp(App);
import { myUse } from "./myUse";
myUse(Loading)
// app.use(Loading);

//不提示可以设置属性
type Lod = {
  show: () => void,
  hide:()=>void
}
declare module "@vue/runtime-core" {
  export interface ComponentCustomProperties{
    _loading:Lod
  }
}

myUser.ts

import { App } from "vue";
import  {app} from  "./main"
interface Use{
    install:(app:App,...options:any[])=>void
}


const installList = new Set();

export function myUse<T extends Use>(plugin: T, ...options: any[]) {
    if (installList.has(plugin)) {
        console.error("注册过了",plugin)
    } else {
        plugin.install(app,...options);
        installList.add(plugin)
    }
     
}