业务中时常有各种确认提醒，但是样式呢又和开源软件不同，这时我们就需要定制开发自己的组件。本文主要介绍一种常见的弹框提醒确认组件。
效果如下：
提醒框：

确认框：

本文主要是仿照iview官网的思路写的，不对的地方请多多指教。
废话不多说，直接讲解步骤

一、创建自定义组件modal.vue

<template>
  <div class="custom-modal-wrap" v-if="isShow">
    <div class="custom-modal" :style="{ width }">
      <div class="custom-modal-content">
        <div class="custom-modal-header">
          <div class="title">{{ title }}</div>
          <div class="modal-close" @click="handleCancel">
            关闭 <span>ESC</span>
          </div>
        </div>
        <div class="custom-modal-body">
          <div class="alarm-info">{{ content }}</div>
        </div>
        <div class="custom-modal-footer">
          <Button type="primary" @click="handleCancel" v-if="type =='confirm'">{{ cancelText }}</Button>
          <Button type="primary" @click="handleConfirm">{{ okText }}</Button>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: "customModal",
  data() {
    return {
    //调用的时候里面的配置除了content外其他都为非必填，不传以默认项为准
      isShow: false, //控制显隐
      title: "提醒", //标题
      type: "confirm", //类型
      content: "", //内容
      okText: "确定",
      cancelText: "取消",
      width: "520px", //百分比或者字符串
    };
  },

  methods: {
    handleConfirm() {
      this.isShow = false;
      if(this.onOK){
        this.onOK();
      }
     
    },
    handleCancel() {
      this.isShow = false;
      if(this.onCancel){
        this.onCancel();
      }
    },
  },
  mounted() {
    let that = this;
    that.$nextTick(() => {
      document.addEventListener("keyup", function (e) {
        if (e.keyCode == 27) {
          that.isShow = false;
        }
      });
    });
  },
};
</script>

<style lang="less" scoped>
.custom-modal-wrap {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  //   display: flex;
  overflow: auto;
  //   justify-content: center;
  //   align-items: center;
  z-index: 999999;
  outline: 0;
  background-color: rgba(55, 55, 55, 0.6);
}
.custom-modal {
  width: auto;
  margin: 0 auto;
  position: relative;
  outline: 0;
  top: 100px;
}
.custom-modal-content {
  position: relative;
  background-color: #fff;
  border: 0;
  border-radius: 6px;
  background-clip: padding-box;
  box-shadow: 0 4px 12px rgb(0 0 0 / 15%);
}
.custom-modal-header {
  border-bottom: none;
  height: auto;
  line-height: normal;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
}
.custom-modal-header {
  .title {
    font-size: 22px;
    color: #111111;
    height: auto;
    line-height: normal;
  }
  .modal-close {
    white-space: nowrap;
    font-size: 16px;
    font-weight: normal;
    font-stretch: normal;
    color: #888888;
    span {
      border: 1px solid #eeeeee;
      padding: 2px 8px;
      border-radius: 4px;
      cursor: pointer;
    }
  }
}
.custom-modal-body {
  padding: 0 16px;
  font-size: 14px;
  line-height: 1.5;
}
.custom-modal-footer {
  border-top: none;
  text-align: center;
  padding: 40px 18px 40px 18px;
  display: flex;
  justify-content: center;
  align-items: center;
  button:not(first-child) {
    margin-left: 10px;
  }
}
</style>

全局样式在iview的基础上改的，global.less文件内容如下

// 自定义弹框样式
.custom-modal-footer-block {
  .ivu-modal-header {
    border-bottom: none !important;

    .title {
      font-size: 22px;
      color: #111111;
      height: auto;
      line-height: normal;
    }

  }

  .ivu-modal-body {
    padding-bottom: 0;
    padding-top: 0;

    .form {
      .ivu-form-item:last-child {
        margin-bottom: 0;
      }
    }

    .type {
      margin: 0;
    }
  }

  .ivu-modal-footer {
    border-top: none !important;
    text-align: center;
    padding-bottom: 40px;
    padding-top: 40px;
  }
}

.ivu-modal-header {
  height: auto;
  line-height: normal;
  display: flex;
  justify-content: space-between;
  align-items: center;

  .modal-close {
      white-space: nowrap;
      font-size: 16px;
      font-weight: normal;
      font-stretch: normal;
      color: #888888;

      span {
          border: 1px solid #eeeeee;
          padding: 2px 8px;
          border-radius: 4px;
          cursor: pointer;
      }
  }
}

.ivu-modal-close {
  display: none;
}

.ivu-modal-footer {
  padding-bottom: 40px;
}

.alarm-info {
  border-top: 1px solid #eeeeee;
  border-bottom: 1px solid #eeeeee;
  height: 80px;
  font-size: 16px;
  color: #ff8503;
  text-align: center;
  line-height: 80px;
}

二、新建modal.js，创建对应的实例，挂载、合并配置项

import Vue from 'vue';
import customModal from './modal.vue';

const modal = Vue.extend(customModal);
// console.log(new modal({data}))
let instance = new modal({}).$mount();
document.body.appendChild(instance.$el);
customModal.confirm = function (option) {
    Object.assign(instance, option,{type:'confirm'}); //这个要合并的type属性是根据调用方法来确定类型的，对应modal.vue中要设置的type,这个地方是必填项，后面扩展的话自己考虑，类似于iview中success、error、warming等类型，用来区分
    instance.isShow = true;
}
customModal.info = function (option) {
    Object.assign(instance, option,{type:'info'});
    instance.isShow = true;
}
export default customModal;

customModal就和Vue原型链上的$Modal类似，小伙伴可以自己看看里面的API

三、main.js文件中挂载在原型上

// 自定义弹框
import customModal from './components/modal/modal.js';
Vue.prototype.$customModal = customModal;

四、方法调用

 this.$customModal.confirm({
    title:'提醒',
     content:"要删除吗？一旦删除将不可恢复",
     onOK:()=>{
       this.handleRemove(row.name);
     },
     onCancel:()=>{
      }
 })

this.$customModal.info({
    title:'提醒',
     content:"要删除吗？一旦删除将不可恢复",
     //onOK回调方法有无都可以，无的话就和iview的Modal一样的效果，有的话就是多了个回调。
     onOK:()=>{
       this.handleRemove(row.name);
     },
    
 })