--MyInput组件--
<template>
<div>
<div>二次封装 input 自定义的内容</div>
<component :is="h(ElInput, { ...$attrs, ...props, ref: changRef }, $slots)"></component>
</div>
</template>
<script lang="ts" setup>
import { ElInput, type InputProps } from 'element-plus'
import { getCurrentInstance, h } from 'vue'
const props = defineProps<Partial<InputProps>>()
const vm = getCurrentInstance()
function changRef(inputInstance: any) {
console.log('xxxxxxx')
console.log(inputInstance)
if (vm) {
console.log('vm')
console.log(vm)
vm.exposed = inputInstance || {}
vm.exposeProxy = inputInstance || {}
}
}
/**
* 问题:
* 1. 如何让 props 穿透到子组件?
* 2. 如何让插槽内容穿透到子组件?
* 3. 如何将组件的方法暴露给父组件使用?
*/
</script>
<style scoped></style>
--父组件--
<template>
<div class="w-[500px]">
<h1 class="mb-20">父组件</h1>
<MyInput ref="inputRef" v-model="msg">
<template #append>
<div>append</div>
</template>
</MyInput>
</div>
</template>
<script setup lang="ts">
import MyInput from '@/components/MyInput.vue'
import { ref, h } from 'vue'
const inputRef = ref()
const msg = ref('Hello World')
setTimeout(() => {
console.log('inputRef.value=>', inputRef.value)
inputRef.value.clear()
}, 1000)
</script>
<style lang="less" scoped>
.bar {
color: #de0002;
}
</style>