vue弹窗组件实现方法

基础弹窗组件实现

创建Modal.vue文件作为基础组件模板：

<template>
  <div class="modal-mask" v-if="visible" @click.self="close">
    <div class="modal-container">
      <slot name="header">
        <h3>{{ title }}</h3>
      </slot>
      <div class="modal-body">
        <slot></slot>
      </div>
      <div class="modal-footer">
        <slot name="footer">
          <button @click="close">关闭</button>
        </slot>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  props: {
    visible: Boolean,
    title: String
  },
  methods: {
    close() {
      this.$emit('update:visible', false)
    }
  }
}
</script>

<style>
.modal-mask {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  display: flex;
  justify-content: center;
  align-items: center;
}
.modal-container {
  background: white;
  padding: 20px;
  border-radius: 4px;
  min-width: 300px;
}
</style>

组件调用方式

在父组件中使用基础弹窗：

<template>
  <button @click="showModal = true">打开弹窗</button>
  <Modal v-model:visible="showModal" title="示例标题">
    <p>这里是弹窗内容</p>
    <template #footer>
      <button @click="showModal = false">自定义按钮</button>
    </template>
  </Modal>
</template>

<script>
import Modal from './Modal.vue'
export default {
  components: { Modal },
  data() {
    return {
      showModal: false
    }
  }
}
</script>

高级功能扩展

支持动画效果的弹窗组件：

<template>
  <transition name="modal">
    <div class="modal-mask" v-if="visible" @click.self="close">
      <div class="modal-container">
        <!-- 原有内容 -->
      </div>
    </div>
  </transition>
</template>

<style>
.modal-enter-active,
.modal-leave-active {
  transition: opacity 0.3s ease;
}
.modal-enter-from,
.modal-leave-to {
  opacity: 0;
}
</style>

全局弹窗服务

创建可编程调用的全局弹窗服务：

// modalService.js
import { createApp } from 'vue'

export default {
  install(app) {
    app.config.globalProperties.$modal = {
      show(options) {
        const modalApp = createApp({
          data() {
            return {
              visible: true,
              ...options
            }
          },
          template: `
            <Modal v-model:visible="visible" :title="title">
              {{ content }}
            </Modal>
          `
        })
        modalApp.component('Modal', Modal)
        const el = document.createElement('div')
        document.body.appendChild(el)
        modalApp.mount(el)
      }
    }
  }
}

在main.js中注册服务：

import modalService from './modalService'
app.use(modalService)

组件内调用方式：

this.$modal.show({
  title: '提示',
  content: '操作成功'
})