VuePress 中如何增加用户登录功能

# npm
npm i v-dialogs -D
# yarn
yarn add -D v-dialogs

<template>
 <div class="login-form">
  <div class="form-header">User Name</div>
  <div>
   <input type="text" class="form-control" v-model="username">
  </div>
  <div class="form-header">Password</div>
  <div>
   <input type="password" class="form-control" v-model="password">
  </div>
  <div class="btn-row">
   <button class="btn" @click="login">
    OK
   </button>
  </div>
 </div>
</template>
<script>
import { STORAGE_KEY } from './helper'
export default {
 data () {
  return {
   username: '',
   password: ''
  }
 },
 methods: {
  login () {
   if (this.username && this.password) {
    const data = JSON.stringify({
     name: this.username,
     time: new Date().getTime()
    })
    // 登录成功后的逻辑处理，这里将数据保存在 localStorage 中仅作为功能演示
    window.localStorage.setItem(STORAGE_KEY, data)
    // 关闭窗口
    this.$emit('close', true)
   } else {
    this.$dlg.alert('Please complete the content', {
     messageType: 'warning'
    })
   }
  }
 }
}
</script>
<style lang="stylus">
.login-form
 padding: 1rem
 display flex
 flex-direction column
 box-sizing border-box
 .btn-row
  margin-top 1rem
 .btn
  padding 0.6rem 2rem
  outline none
  background-color #60C084
  color white
  border 0
 .form-header
  color #666
  margin-bottom 0.5rem
 .form-control
  padding 0.6rem
  border 2px solid #ddd
  width 100%
  margin-bottom 0.5rem
  box-sizing border-box
  outline none
  transition border 0.2s ease
  &:focus
   border 2px solid #aaa
</style>

import { checkAuth } from './login/helper'
import Login from './login/Login'
export default ({
 Vue,
 options,
 router,
 siteData
}) => {
 Vue.mixin({
  mounted() {
   const doCheck = () => {
    if (!checkAuth()) {
     this.$dlg.modal(Login, {
      width: 300,
      height: 350,
      title: 'Employee login',
      singletonKey: 'employee-login',
      maxButton: false,
      closeButton: false,
      callback: data => {
       if (data === true) {
        // do some stuff after login
       }
      }
     })
    }
   }
   if (this.$dlg) {
    doCheck()
   } else {
    import('v-dialogs').then(resp => {
     Vue.use(resp.default)
     this.$nextTick(() => {
      doCheck()
     })
    })
   }
  }
 })
}