Vue implements custom "modal pop-up window" component example code

<template>
  <transition-group name='fade'>
    <!-- Exit pop-up window-->
    <div class="quit_dialog"
         key="1"
         @click="isQuit = false"
         v-if="isQuit"
         @touchmove.prevent>
    </div>
    <div class="quit_box"
         v-show="isQuit"
         key="2">
      <img :src="imgUrl"
           :alt="imgLoadTip">
           <div class="quit_title">{{title}}</div>
      <p>{{content}}</p>
      <button class="quit_btn" @click="leftClick">{{btnText}}</button>
      <button class="quit_close" @click="rightClick">{{rightText}}</button>
    </div>
  </transition-group>
</template>
<script>
export default {
  name: 'Popup',
  data () {
    return {
      isQuit: false,
      imgUrl: '',
      title: '',
      content: '',
      btnText: '',
      rightText: ''
    }
  },
  methods: {
    leftClick () {
      this.leftBtn()
      this.isQuit = false
    },
    rightClick () {
      this.rightBtn()
      this.isQuit = false
    }
  }
}
</script>
<style lang="scss" scoped>
// Exit pop-up window.fade-enter,
.fade-leave-active {
  opacity: 0;
}
.fade-enter-active,
.fade-leave-active {
  transition: opacity 0.35s;
}
// Global pop-up window.quit_dialog {
  background: rgba(0,0,0,.5);
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  z-index: 10000;
}
 
.quit_box {
  width: 700px;
  background: #fff;
  position: fixed;
  top: 50%;
  left: 50%;
  margin-left: -350px;
  margin-top: -190px;
  z-index: 10001;
  border-radius: 10px;
  text-align: center;
  padding: 50px;
  img{
    width: 80px;
  }
 .quit_title{
      color: #666;
      font-size: 28px;
      margin: 45px 0px;
  }
  button {
    border-radius: 32px;
    padding:20px 0px;
    font-size: 26px;
    border-radius: 8px;
    width: 214px;
  }
  .quit_btn{
    color: #03BA82;
    background: #fff;
    border: 1px solid #03BA82;
    margin-right: 32px;
  }
  .quit_close {
    background: linear-gradient(0deg, #03BA82, #01D695);
    box-shadow: 0px 3px 4px 0px rgba(1, 84, 58, 0.27);
    border: 1px solid #03BA82;
    color: #fff;
  }
}
</style>

import Vue from 'vue'
import Grasp from '../components/QuitDialog/QuitDialog'
 
const PopupBox = Vue.extend(Grasp)
 
Grasp.install = function (data) {
  let instance = new PopupBox({
    data
  }).$mount()
 
  document.body.appendChild(instance.$el)
 
  Vue.nextTick(() => {
    instance.isQuit = true
    // isQuit corresponds to isQuit in the pop-up component and is used to control visibility})
}
 
export default Grasp

import Vue from 'vue'
import Popup from './api/quitDialog'
Vue.prototype.$popup = Popup.install

methods: {
    graspBtn () {
      this.$grasp({
        imgUrl: require('../../assets/home/quits.png'), // Top image.
        imgLoadTip: 'Image loading...',
        content: 'Warm Tips',
        title: 'Note: This learning task is not completed, do you confirm to exit',
        btnText: 'Cruel Exit',
        rightText: 'Continue to study',
        // Left click event leftBtn: () => {
          this.$store.dispatch('user/logout').then(() => {
            this.$signalr.LogoutPad()
            this.$signalr.SendMsg(2, 0, 'Exit system')
            this.$router.push('/login')
          })
        },
        // Right click event rightBtn: () => {}
      })
    }
}