food/src/views/layout/components/menubar.vue

<template>
  <div>
    <!-- logo -->
    <div class="sidebar-logo-container" :class="{ 'collapse': isCollapse }">
      <router-link v-if="isCollapse" key="isCollapse" class="sidebar-logo-link" to="/">
        <img v-if="logo" src="@/assets/logo.png" class="sidebar-logo">
        <h1 v-else class="sidebar-title">{{ title }}</h1>
      </router-link>
      <router-link v-else key="expand" class="sidebar-logo-link" to="/">
        <img v-if="logo" src="@/assets/logo.png" class="sidebar-logo">
        <h1 class="sidebar-title">{{ title }}</h1>
      </router-link>
    </div>
    <!-- end logo -->
    <!-- menu -->
    <el-menu class="border-n" :router="true" :default-active="activeMenu" :unique-opened="true" background-color="#304156"
      text-color="rgb(191, 203, 217)" active-text-color="#409EFF" :collapse-transition="false" :collapse="isCollapse">
      <template v-for="(route, index) in routes">
        <el-menu-item v-if="route.children.length < 2" :key="route.path" :index="route.children[0].path">
          <i class="fc" :class="route.children[0].meta.icon"></i>
          <span slot="title">{{ route.children[0].meta.title }}</span>
        </el-menu-item>
        <el-submenu v-else :key="index" :index="route.path">
          <template slot="title">
            <i class="fc" :class="route.meta.icon"></i>
            <span>{{ route.meta.title }}</span>
          </template>
          <el-menu-item v-for="child in route.children" :key="child.path" :index="child.path">
            <i class="fc" :class="child.meta.icon"></i>
            <span>{{ child.meta.title }}</span>
          </el-menu-item>
        </el-submenu>
      </template>
    </el-menu>
    <!-- end menu -->
  </div>
</template>

<script>
export default {
  name: 'Menubar',
  data () {
    return {
      title: '无人机控制终端',
      logo: '@/assets/logo.png'
    }
  },
  computed: {
    /**
   * @description: 递归过滤路由列表，同时过滤掉父级和子级中 hidden 为 true 或权限不足的项
   */
    routes () {
      const filterRoutes = (routes, userPower) => {
        return routes.filter(item => {
          const roles = item.roles || [] // 设置默认空数组
          if (item.hidden === true || roles.indexOf(userPower) === -1) {
            return false
          }
          if (item.children && item.children.length > 0) {
            item.children = filterRoutes(item.children, userPower) // 递归处理子级
            if (item.children.length === 0) {
              return false // 如果子级都被过滤掉了，也过滤掉当前项
            }
          }
          return true
        })
      }
      const userPower = this.$store.state.user.power.trim()
      return filterRoutes(this.$router.options.routes, userPower)
    },
    /**
     * @description: 当前激活的 路由路径
     */
    activeMenu () {
      const route = this.$route
      const { meta, path } = route
      if (meta.activeMenu) {
        return meta.activeMenu
      }
      return path
    },
    /**
     * @description: 获取飞机列表
     */
    airList () {
      return this.$store.state.airList.filter(element => element.shop_id === this.$store.state.user.shop_id)
    },
    /**
     * @description: 侧边导航栏状态
     */
    isCollapse () {
      return this.$store.state.app.isCollapse
    }
  },
  methods: {
    /**
    * @description: 动态加载路由
    */
    loadRoute () {
      const arr = new Array(0)
      this.airList.map((item, index) => {
        arr[index] = {
          path: '/planes/index/' + item.id + '/' + item.name,
          name: 'Planes',
          component: () => import('@/views/layout/components/main/planes/index.vue'),
          meta: { title: item.name, icon: 'iconfont icon-wurenji' },
          roles: ['admin', 'editor']
        }
      })
      this.routes.map((element) => {
        if (element.meta.title === '无人机') {
          element.children = arr
        }
      })
    }
  },
  created () {
  },
  watch: {
    /**
     * @description: 监听飞机列表 有个新刷新导航栏
     */
    airList () {
      this.loadRoute()
      this.$forceUpdate()// 刷新本组件
    }
  }
}
</script>

<style lang="scss" scoped>
@import "@/styles/theme.scss";

i {
  font-size: 18px !important;
  margin-right: 12px;
  vertical-align: middle;
}

.el-submenu__title i,
.el-menu-item i {
  color: rgb(191, 203, 217);
}

.el-submenu {
  .el-menu-item {
    background-color: #1f2d3d !important;
  }
}

.el-submenu .el-menu-item:hover {
  background-color: #001528 !important;
}

.sidebarLogoFade-enter,
.sidebarLogoFade-leave-to {
  opacity: 0;
}

h1 {
  color: $maintext-color !important;
}

.sidebar-logo-container {
  position: relative;
  width: 100%;
  height: 50px;
  line-height: 50px;
  background: $graylight-color;
  text-align: center;
  overflow: hidden;
  z-index: 100;
  box-shadow: 0 1px 1px rgba(0, 21, 41, .08);

  & .sidebar-logo-link {
    height: 100%;
    width: 100%;

    & .sidebar-logo {
      width: 24px;
      height: 24px;
      vertical-align: middle;
      margin-right: 12px;
    }

    & .sidebar-title {
      display: inline-block;
      margin: 0;
      color: #fff;
      font-weight: 600;
      line-height: 50px;
      font-size: 14px;
      font-family: Avenir, Helvetica Neue, Arial, Helvetica, sans-serif;
      vertical-align: middle;
    }
  }

  &.collapse {
    .sidebar-logo {
      margin-right: 0px;
    }
  }
}
</style>