写一个Vue Popup组件

时间:2020-05-16 邱鸿彬人气:0

组件长这样

主要有标题、内容、按钮个数、按钮颜色、按钮文案这些可配置项

期望的调用方式一

不需要等待用户二次确认

import Modal from 'common/components/modal'

handleModal() {
 Modal({
  title: '赚取收益？',
  content: '根据您的授权金额和计息天数计算得出(还未到账)。实际以到账金额为准。',
  confirmText: '我知道了'
 })
}

期望的调用方式二

需要等待用户二次确认

import Modal from 'common/components/modal'

async handleModal() {
 await Modal({
  title: '确定现在申请结束吗？',
  content: '申请后预计1-5个工作日可退出',
  cancelColor: '#ff7400',
  confirmColor: '#000',
  showCancel: true
 })
}

模板长这样

common/components/modal/modal.vue

这里用 transition 来包裹动画，填好配置参数就行了

handleConfirm() 二次确认事件我们不放这里实现，具体原因后面会讲

<template>
 <transition name="modal-pop">

  <div class="wrap"
     v-show="visible">

   <div class="modal">

    <h3>{{ title }}</h3>

    <p>{{ content }}</p>

    <div class="btns">
     <span v-if="showCancel"
        @click="visible = false"
        :style="`color: ${cancelColor}`">{{ cancelText }}</span>
     <span @click="handleConfirm()"
        :style="`color: ${confirmColor}`">{{ confirmText }}</span>
    </div>

   </div>

  </div>

 </transition>
</template>

<style lang="less">
@import './modal.less';
</style>

定义好 props 参数列表，visible 作为组件内部状态控制弹框打开关闭

export default {
 props: [
  'title',
  'content',
  'showCancel',
  'cancelColor',
  'cancelText',
  'confirmText',
  'confirmColor'
 ],

 data() {
  return {
   visible: false
  }
 }
}

组件包装

common/components/modal/index.js

先利用 vue 的 extend 拿到刚编写的模板

import Vue from 'vue'

const ModalConstructor = Vue.extend(require('./modal.vue'))

const Modal = (opts = {}) => {
 let _m = new ModalConstructor({ el: document.createElement('div') })
}

export default Modal

配置好默认参数，并将 visible 状态打开以显示弹框，最终插入页面

import Vue from 'vue'

const ModalConstructor = Vue.extend(require('./modal.vue'))

const Modal = (opts = {}) => {
 let _m = new ModalConstructor({ el: document.createElement('div') })

 _m.title = opts.title || '提示'
 _m.content = opts.content || ''
 _m.showCancel = opts.showCancel || false
 _m.cancelText = opts.cancelText || '取消'
 _m.cancelColor = opts.cancelColor || '#000'
 _m.confirmText = opts.confirmText || '确定'
 _m.confirmColor = opts.confirmColor || '#ff7400'
 _m.visible = true

 document.body.appendChild(_m.$el)
}

export default Modal

用户点击二次确认事件后，为了方便组件外部捕捉，这里使用 Promise 包装回调事件

这样 handleConfirm() 放在这里实现是不是就方便很多了

import Vue from 'vue'

const ModalConstructor = Vue.extend(require('./modal.vue'))

const Modal = (opts = {}) => {
 let _m = new ModalConstructor({ el: document.createElement('div') })

 _m.title = opts.title || '提示'
 _m.content = opts.content || ''
 _m.showCancel = opts.showCancel || false
 _m.cancelText = opts.cancelText || '取消'
 _m.cancelColor = opts.cancelColor || '#000'
 _m.confirmText = opts.confirmText || '确定'
 _m.confirmColor = opts.confirmColor || '#ff7400'
 _m.visible = true

 document.body.appendChild(_m.$el)

 return new Promise(resolve => {
  return (_m.handleConfirm = () => {
   _m.visible = false
   resolve()
  })
 })
}

export default Modal

最终长这样

import Modal from 'common/components/modal'

async handleModal() {
 await Modal({
  title: '确定现在申请结束吗？',
  content: '申请后预计1-5个工作日可退出',
  cancelColor: '#ff7400',
  confirmColor: '#000',
  showCancel: true
 })

 console.log('用户确认了！')
}

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