vue自定义实例化modal弹窗功能的实现

//  components/confirmModal/index.vue
<template>
  <Modal v-model="modal" :title="title">
    <div>{{content}}</div>
    <div slot="footer">
      <Button class="btn-primary" @click="onSubmit" :loading="loading">sure</Button>
      <Button class="btn-cancel" @click="cancel">cancel</Button>
    </div>
  </Modal>
</template>

<script>
export default {
  name: 'confirm-modal',
  data() {
    return {
      modal: false,
      loading: false,
      title: '',
      content: '',
      subFunc: null,
      cancelFunc: null
    }
  },
  methods: {
    show(data) {
      const { title, content, subFunc, cancelFunc } = data
      this.modal = true
      this.title = title
      this.content = content
      this.subFunc = subFunc
      this.cancelFunc = cancelFunc
    },
    onSubmit() {
      this.subFunc.call()
    },
    cancel() {
      this.modal = false
    }
  }
}
</script>

// components/confirmModal/index.js

import Vue from 'vue'
import ConfirmModal from './index.vue'

const Modal = Vue.extend(ConfirmModal)

let instance1

let instance = new Modal()

instance.confirm = function (data) {
  instance1 = new Modal({
    data
  }).$mount()
  document.body.appendChild(instance1.$el)
  if (data) {
    instance1.show(data)
  }
  return instance1
}

instance.remove = function () {
  instance1.cancel()
}


export default {
  install: Vue => {
    Vue.prototype.$ConfirmModal = instance // 将ConfirmModal 组件暴露出去，并挂载在Vue的prototype上
  }
}

// main.js

import Vue from "vue";
import ConfirmModal from './components/shared/confirmModal/index.js'
Vue.use(ConfirmModal)

const Modal = Vue.extend(ConfirmModal)

import Vue from "vue";
import ConfirmModal from './components/shared/confirmModal/index.js'
Vue.use(ConfirmModal)

this.$ConfirmModal.confirm({
  title: '123',
  content: '12111',
  subFunc: () => {
    console.log('1111')
    console.log(this.$ConfirmModal)
    this.$ConfirmModal.remove()
  }
})