<template>
  <div id="app">
    <van-nav-bar v-if="path !== '/login'" :title="navTitle" fixed />
    <router-view />
    <van-tabbar v-model="active" v-if="path !== '/login'" @change="handleChangeTabbar">
      <van-tabbar-item icon="wap-home" :to="{ path: '/' }">首页</van-tabbar-item>
      <van-tabbar-item icon="setting" :to="{ path: '/setting' }">设置</van-tabbar-item>
    </van-tabbar>
  </div>
</template>
<script>
export default {
  data() {
    return {
      navTitle: '警报列表'
    }
  },
  computed: {
    path() {
      return this.$route.path
    },
    active: {
      get: function() {
        return this.$route.path === '/' ? 0 : 1
      },
      set: function() {}
    }
  },
  mounted() {
    const navTitle = localStorage.getItem('navTitle')
    if (navTitle) {
      this.navTitle = navTitle
    } else {
      localStorage.setItem('navTitle', this.navTitle)
    }
  },
  methods: {
    handleChangeTabbar(active) {
      this.navTitle = active === 0 ? '警报列表': '设置中心'
      localStorage.setItem('navTitle', this.navTitle)
    }
  }
}
</script>
<style lang="less">
#app {
  font-family: "Avenir", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  //text-align: center;
  color: #2c3e50;
  overflow: hidden;
}
a:-webkit-any-link {
  text-decoration: none;
}

input:-webkit-autofill {
  -webkit-box-shadow: 0 0 0px 1000px white inset;
}

input {
  filter: none !important;
}
</style>