vue组件二次封装后暴露子组件方法

秋沐2024-09-04 15:54

demo.vue

javascript 复制代码

<template>
    <el-button type="primary" @click="focus">聚焦{{ msg }}</el-button>
    <MyInput v-model="msg" ref="myInputRef">
        <template #prepend>
            <el-button>prefix</el-button>
        </template>
        <template #append>
            <el-button>append</el-button>
        </template>
    </MyInput>
</template>
<script setup lang="ts">
import MyInput from "./MyInput.vue"
import { ref } from "vue"
const msg = ref('111')
const myInputRef = ref()
const focus = () => {
    myInputRef.value.focus()
}
</script>

MyInput.vue

javascript 复制代码

<template>
    <div>nihao</div>
    <el-input ref="inputRef" v-bind="$attrs">
        <template v-for="(, slot) in $slots" :key="slot" #[slot]="slotProps">
            <slot :name="slot" v-bind="slotProps" />
        </template>
        <!-- 或者 -->
        <!-- <template v-for="(slotContent, slotName) in $slots" :key="slotName" #[slotName]="slotProps">
            <slot :name="slotName" v-bind="slotProps">{{ slotContent }}</slot>
        </template> -->
    </el-input>
</template>
<script setup lang="ts">
import { ref } from "vue"
const inputRef = ref()
defineExpose(
    new Proxy(
        {},
        {
            get(target, key) {
                return inputRef.value?.[key]
            },
            has(target, key) {
                return key in inputRef.value
            }
        })
)

</script>