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[JavaScript] vue封装confirm弹框,通过transition设置动画

开发技术 开发技术 发布于:2021-07-14 09:54 | 阅读数:635 | 评论:0

上篇:vue基于vant的popup组件封装confirm弹框
为什么用到popup呢?主要是用到了其中的动画,其实这个动画可以通过transition标签实现
效果等同于前篇:
DSC0000.png

step:
1、components文件夹下新建MyConfirm文件夹,分别新建index.vue和index.js
index.vue:
<template>
  <transition name="my-confirm">
  <div class="confirm" v-if="isShow" @click="handleClose()">
    <div class="con_box" @click.stop="()=>{}">
    <h3>{{text.title}}</h3>
    <p>{{text.message}}</p>
    <div class="btn">
      <span @click.stop="handleClose()" v-if="text.btn.cancelText">{{text.btn.cancelText}}</span>
      <span @click.stop="handleOk()" v-if="text.btn.okText">{{text.btn.okText}}</span>
    </div>
    </div>
  </div>
  </transition>
</template>
<script>
export default {
  data() {
  return {
    isShow: false,
    text: {
    title: '提示',
    message: '确定删除此条信息?',
    btn: {
      okText: '确定1',
      cancelText: '取消1'
    }
    }
  }
  },
  methods: {
  handleClose() {
    console.log('关闭')
  },
  handleOk() {
    console.log('确定')
  }
  }
}
</script>
<style lang='less' scoped>
.confirm {
  background-color: rgba(0, 0, 0, 0.7);
  width: 100%;
  height: 100%;
  position: fixed;
  top: 0;
  .con_box {
  width: 270px;
  background: #ffffff;
  border-radius: 10px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  line-height: 1;
  text-align: center;
  color: #4d5c82;
  padding: 15px;
  box-sizing: border-box;
  > h3 {
    font-size: 20px;
    margin-top: 10px;
    margin-bottom: 20px;
  }
  > p {
    font-size: 17px;
    margin-bottom: 30px;
  }
  .btn {
    display: flex;
    justify-content: space-between;
    > span {
    display: block;
    width: 114px;
    background-color: #e0e5f5;
    text-align: center;
    line-height: 44px;
    font-size: 17px;
    }
    > span:last-of-type {
    background-color: #1288fe;
    color: #ffffff;
    }
  }
  }
}
// 命名动画
.my-confirm-enter,
.my-confirm-leave-to {
  opacity: 0;
}
.my-confirm-enter-active,
.my-confirm-leave-active {
  transition: all 0.8s;
}
</style>
index.js:
import Vue from 'vue'
import confirm from './index.vue'
let confirmConstructor = Vue.extend(confirm)
let myConfirm = function (text) {
  return new Promise((resolve, reject) => {
  let confirmDom = new confirmConstructor({
    el: document.createElement('div')
  })
  document.body.appendChild(confirmDom.$el) // new一个对象,然后插入body里面
  confirmDom.text = text // 为了使confirm的扩展性更强,这个采用对象的方式传入,所有的字段都可以根据需求自定义
  confirmDom.isShow = true
  confirmDom.handleOk = function () {
    resolve()
    confirmDom.isShow = false
  }
  confirmDom.handleClose = function () {
    reject()
    confirmDom.isShow = false
  }
  })
}
export default myConfirm
2、main.js中引入并注册
// 自定义confirm
import myConfirm from './components/MyConfirm/index.js'
Vue.prototype.$confirm = myConfirm
3、使用
this.$confirm({
    title: '提示',
    message: '确认删除此篇周计划吗?',
    btn: {
      okText: '确定1',
      cancelText: '取消2'
    }
    })
    .then(() => {
      console.log('ok')
    })
    .catch(() => {
      console.log('no')
    })
注意:在index.vue中isShow的初始值为false,在index.js中将该值设置为true。否则会有个bug:显示的时候没有动画而关闭时有动画


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