用Vue.extend构建消息提示组件的方法实例

<template>
  <transition name="message-fade">
    <div class="message" v-show="show">
    <span class="icon"><icon name="info"></icon></span>
      <p>{{message}}</p>
    </div>
  </transition>
</template>

<script>
  export default {
    name: 'v-message',
    mounted(){
      this.StartTime();
    },
    data(){
      return {
        message: '123',
        show: false,
        timer: null
      }
    },
    methods:{
      StartTime(){
        this.show = true;
        if(this.timer){
          clearTimeOut(this.timer)
        }else{
          this.timer = setTimeout(()=>{
            this.show = false
          }, 3000);
        }
      }
    }
  }
</script>

import Vue from 'vue';
let MessageBox = Vue.extend(require('./message.vue'));
let instance;
var message = function(options){
  if(typeof options === 'string'){
    options = {
      message: options
    }
  }
  //生成组件
  instance = new MessageBox({
    data: options
  })
  //组件需要挂载在dom元素上
  instance.vm = instance.$mount();
  //根据不同的类型，设置不同消息的背景颜色
  if(options.type){
    instance.vm.$el.children[0].className += ` icon__${options.type}`;
  }
  document.body.appendChild(instance.vm.$el);
  return instance.vm;
}

const type = ['success', 'info', 'warning', 'error'];
type.forEach((type)=>{
  message[type] = options =>{
    if(typeof options === 'string'){
      options = {
        message: options
      }
    }
    options.type = type;
    return message(options);
  }
})

export default message;

vue.prototype.$message = message;