VUE2实现事件驱动弹窗示例

import Vue from 'vue'
import promptComponent from './prompt.vue' // 引入弹窗的vue文件
const promptCOnstructor= Vue.extend(promptComponent); // 注册组件
let instance = new promptConstructor().$mount(''); // 获得组件的实例

document.body.appendChild(instance.$el); // 将组件的element插入到body中
const Alert = (text,okText)=>{
  if(instance.show === true) { //防止多次触发
    return;
  }
  // 为弹窗数据赋值
  instance.show = true; 
  instance.isAlert = true;
  instance.okText = okText||'确定';
  instance.message = text;
  //返回一个promise对象，并为按钮添加事件监听
  return new Promise(function(resolve,reject) {
    instance.$refs.okBtn.addEventListener('click',function() {
      instance.show = false;
      resolve(true);
    })
  })
};
const COnfirm= (text,okText,cancelText)=>{
  if(instance.show === true) {
    return;
  }
  instance.show = true;
  instance.okText = okText||'确定';
  instance.cancelText = cancelText||'取消';
  instance.message = text;
  return new Promise(function(resolve,reject) {
    instance.$refs.cancelBtn.addEventListener('click',function() {
      instance.show = false;
      resolve(false);
    });
    instance.$refs.okBtn.addEventListener('click',function() {
      instance.show = false;
      resolve(true);
    })
  })
};
const Prompt = (text,okText,inputType, defaultValue)=>{
  if(instance.show === true) {
    return;
  }
  instance.show = true;
  instance.isPrompt = true;
  instance.okText = okText||'确定';
  instance.message = text;
  instance.inputType = inputType || 'text';
  instance.inputValue = defaultValue || '';
  return new Promise(function(resolve,reject) {
    instance.$refs.okBtn.addEventListener('click',function() {
      instance.show = false;
      resolve(instance.inputValue);
    })
  })
};

export {Alert,Confirm,Prompt}

import {Alert,Prompt,Confirm} from '../lib/components/prompt/prompt.js'

Vue.prototype.Alert = function(text,okText) {
  return Alert(text,okText)
};
Vue.prototype.COnfirm= function(text,okText,cancelText) {
  return Confirm(text,okText,cancelText)
};
Vue.prototype.Prompt = function(text,okText,inputType, defaultValue) {
  return Prompt(text,okText,inputType, defaultValue)
};
component.vue:

inputName() {
  this.Prompt('请输入名称','确认','text').then(res =>{
    // do something use res
  });
},