OL-LearnPlatform-Frontend/src/views/teacher/AdminDashboard.vue

<template>
  <div class="admin-dashboard">
    <!-- 顶部图片 -->
    <div class="top-image-container">
      <img src="/images/teacher/顶部.png" alt="顶部图片" class="top-image">

    </div>

    <div class="main-content">
      <!-- 侧边栏 -->
      <div class="sidebar-container">
        <!-- 头像 -->
        <div class="avatar-container">
          <img src="https://picsum.photos/200/200" alt="头像" class="avatar">
          <div class="avatar-text">
            用户昵称~
          </div>
        </div>

        <!-- 导航栏 -->
        <div class="nav-container">
          <router-link to="/teacher/course-management" class="nav-item" :class="{ active: activeNavItem === 0 }"
            @click="setActiveNavItem(0)">
            <img :src="activeNavItem === 0 ? '/images/teacher/课程管理(选中).png' : '/images/teacher/课程管理.png'" alt="">
            <span>课程管理</span>
          </router-link>
          <router-link to="/teacher/student-management" class="nav-item" :class="{ active: activeNavItem === 1 }"
            @click="setActiveNavItem(1)">

            <img :src="activeNavItem === 1 ? '/images/teacher/学院管理(选中).png' : '/images/teacher/学员管理.png'" alt="">
            <span>学员管理</span>
          </router-link>
          <router-link to="/teacher/my-resources" class="nav-item" :class="{ active: activeNavItem === 2 }"
            @click="setActiveNavItem(2)">
            <img :src="activeNavItem === 2 ? '/images/teacher/我的资源(选中).png' : '/images/teacher/我的资源.png'" alt="">
            <span>我的资源</span>
          </router-link>
          <router-link to="/teacher/personal-center" class="nav-item" :class="{ active: activeNavItem === 3 }"
            @click="setActiveNavItem(3)">

            <img :src="activeNavItem === 3 ? '/images/teacher/个人中心(选中).png' : '/images/teacher/个人中心.png'" alt="">
            <span>个人中心</span>
          </router-link>
        </div>
      </div>

      <!-- 右侧路由视图 -->
      <div class="router-view-container">
        <!-- 面包屑 -->
        <div class="breadcrumb">
          <span class="breadcrumb-separator"></span>
          <n-breadcrumb>
            <n-breadcrumb-item v-for="(item, index) in breadcrumbItems" :key="index" :to="item.path">
              {{ item.title }}
            </n-breadcrumb-item>
          </n-breadcrumb>
        </div>
        <router-view></router-view>
      </div>
    </div>

  </div>
</template>

<script setup lang="ts">
import { ref, onMounted, computed, watch } from 'vue'
import { useRoute } from 'vue-router'

const width = window.innerWidth;
const height = window.innerHeight;
console.log(`当前屏幕宽度: ${width}px, 高度: ${height}px`);

// 添加导航项激活状态管理
const activeNavItem = ref(0); // 0: 课程管理, 1: 学员管理, 2: 我的资源, 3: 个人中心
const route = useRoute();

const setActiveNavItem = (index: number) => {
  activeNavItem.value = index;
}

// 动态生成面包屑
const breadcrumbItems = computed(() => {
  // 获取当前路由的matched数组
  const matchedRoutes = route.matched;

  // 处理matchedRoutes，过滤掉'管理后台'并生成面包屑项
  return matchedRoutes
    .filter(item => item.meta.title !== '管理后台')
    .map(item => ({
      title: item.meta.title || '未知页面',
      path: item.path
    }));
});

// 监听路由变化，更新激活的导航项
onMounted(() => {
  // 初始设置
  updateActiveNavItem();
});

// 使用watch监听路由变化
watch(route, () => {
  updateActiveNavItem();
});

// 更新激活的导航项
const updateActiveNavItem = () => {
  const path = route.path;
  if (path.includes('course-management')) {
    activeNavItem.value = 0; // 课程管理
  } else if (path.includes('student-management')) {
    activeNavItem.value = 1; // 学员管理
  } else if (path.includes('my-resources')) {
    activeNavItem.value = 2; // 我的资源
  } else if (path.includes('personal-center')) {
    activeNavItem.value = 3; // 个人中心
  }
}

</script>

<style scoped>
.top-image-container {
  position: relative;
  width: 100%;
  height: 130px;
  overflow: hidden;
}

/* 响应式调整 */
@media screen and (max-width: 768px) {
  .top-image-container {
    height: 100px;
  }
}

@media screen and (max-width: 480px) {
  .top-image-container {
    height: 80px;
  }
}

.top-image {
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0px;
  top: 0px;
  opacity: 100%;
  object-fit: cover;
}

.main-content {
  display: flex;
}

@media screen and (max-width: 768px) {
  .main-content {
    flex-direction: column;
  }
  
  .sidebar-container {
    width: 100%;
    height: auto;
    min-height: 300px;
  }
  
  .router-view-container {
    height: auto;
    min-height: calc(100vh - var(--top-height, 100px) - 300px);
  }
}

.sidebar-container {
  width: 240px;
  height: calc(100vh - var(--top-height, 130px));
  background: #FFFFFF;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

@media screen and (max-width: 768px) {
  .sidebar-container {
    --top-height: 100px;
  }
}

@media screen and (max-width: 480px) {
  .sidebar-container {
    --top-height: 80px;
    width: 200px;
  }
}

.avatar-container {
  height: 230px;
  position: relative;
  /* 移除原来的边框 */
}

/* 添加带间距的横线 */
.avatar-container::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 15px;
    right: 15px;
    height: 1px;
    background-color: #E6E6E6;
  }
  
  .avatar-container img {
    width: 80px;
    height: 80px;
    /* 圆角 */
    border-radius: 50%;
    margin-top: 55px;
    margin-left: 80px;
    margin-right: 80px;
  }
  
  .avatar-text {
    margin-left: 80px;
    height: 31px;
    font-family: AppleSystemUIFont;
    font-size: 20px;
    color: #000000;
    line-height: 26px;
    text-align: left;
    font-style: normal;
    text-transform: none;
  }
  
  @media screen and (max-width: 768px) {
    .avatar-container {
      height: 180px;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
    }
  
    .avatar-container img {
      margin: 0 0 15px 0;
    }
  
    .avatar-text {
      margin: 0;
      text-align: center;
    }
  }
  
  @media screen and (max-width: 480px) {
    .avatar-container {
      height: 150px;
    }
  
    .avatar-container img {
      width: 80px;
      height: 80px;
    }
  
    .avatar-text {
      font-size: 18px;
    }
  }
  
  .nav-container {
    margin-top: 30px;
    /* 鼠标变小手 */
    cursor: pointer;
  
  }
  
  .nav-container .nav-item {
    margin-left: 15px;
    width: 210px;
    height: 50px;
    margin-bottom: 15px;
    /* 圆角 */
    border-radius: 10px;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
    gap: 8px;
  }
  
  @media screen and (max-width: 768px) {
    .nav-container {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      margin-top: 15px;
    }
  
    .nav-container .nav-item {
      width: 200px;
      margin: 0 10px 15px;
    }
  }
  
  @media screen and (max-width: 480px) {
    .nav-container .nav-item {
      width: 150px;
      height: 45px;
      margin: 0 5px 10px;
    }
  
    .nav-container .nav-item img {
      margin-left: 20px;
    }
  }
  
  .nav-container .nav-item:hover {
    background: rgba(102, 183, 227, 0.05);
  }
  
  /* 添加激活状态样式 */
  .nav-container .nav-item.active {
    background: rgba(102, 183, 227, 0.1);
  }
  
  .nav-container .nav-item.active span {
    color: #0C99DA;
  }
  
  .nav-container .nav-item img {
    height: 18px;
    margin-left: 40px;
    margin-top: 0;
    margin-right: 5px;
  }
  
  .nav-container .nav-item span {
    height: 26px;
  font-family: AppleSystemUIFont;
  font-size: 18px;
  color: #666666;
  line-height: 23px;
  text-align: left;
  font-style: normal;
  text-transform: none;
}

.router-view-container {
  flex: 1;
  padding: 10px 25px;
  background: #F5F7FA;
  height: calc(100vh - var(--top-height, 130px));
  overflow-y: auto;
}

@media screen and (max-width: 768px) {
  .router-view-container {
    --top-height: 100px;
    padding: 15px;
  }
}

@media screen and (max-width: 480px) {
  .router-view-container {
    --top-height: 80px;
    padding: 10px;
  }
}

.breadcrumb {
  display: flex;
  align-items: center;
}

.breadcrumb-separator {
  width: 4px;
  height: 17px;
  margin-right: 10px;
  background-color: #0C99DA;
}
</style>