从一个页面跳转到目标页面之后，对应的顶部路由高亮

需求：页面跳转到目标页面之后，对应的顶部路由高亮 

上面的更多 跳转到 学情分析下面的学生分析

<template>
  <div class="topBar" ref="topBar" v-loading.fullscreen.lock="fullscreenLoading">
    <div class="topBar-navi">
      <div class="top-menu container">
        <div class="myMenu">
          <img :src="logo" alt="" />
 
          <!-- S2路由改造 -->
          <div class="parentRoute">
            <span
              :class="{ activeParent: currentIndex == index }"
              v-for="(item, index) in routeMenus"
              :key="index"
              @click="selectParentRoute(item, index)"
            >
              {{ filterTitle(item.meta.title) }}
              <!-- <i v-if="item.children" class="el-icon-arrow-down" /> -->
            </span>
          </div>
        </div>
        <!-- ***************** -->
        <div class="right-menu">
          <span class="right-menu-currentRole">{{ currentRoleObj.roleName }}</span>
          <el-button
            class="Topbar-identity"
            type="text"
            @click="handelShowDialog"
            :disabled="disabledRole"
          >
            切换角色
          </el-button>
          <el-dropdown class="Topbar-dropdown">
            <span class="Topbar-el-dropdown-link">
              {{ name }}<i class="el-icon-arrow-down el-icon--right"></i>
            </span>
            <el-dropdown-menu slot="dropdown" class="Topbar-el-dropdown-menu">
              <div>
                姓名 <span>{{ name }}</span>
              </div>
              <div class="Topbar-Group">
                身份
                <span>{{ currentRoleObj.roleName }}</span>
              </div>
              <div>
                学校 <span>{{ school }}</span>
              </div>
              <div class="user-center">
                <!-- <span @click.stop="toUserCenter">个人中心</span> -->
                <a class="Topbar-logout" @click="logout">退出登录</a>
              </div>
            </el-dropdown-menu>
          </el-dropdown>
        </div>
      </div>
    </div>
 
    <!-- S2二级菜单改造 -->
    <!-- ************ -->
    <div class="childRoute" v-if="subMenus">
      <div class="childRoute-menus container">
        <div
          :class="{ activeChild: currentChildIndex == index }"
          v-for="(item, index) in subMenus"
          :key="index"
          @click="selectChildRoute(item, index)"
        >
          {{ filterTitle(item.meta.title) }}
        </div>
      </div>
    </div>
    <!-- ************ -->
 
    <el-dialog
      title="是否退出登录"
      :visible.sync="DialogLogout"
      width="325px"
      height="134px"
      append-to-body
      center
      class="Topbar-el-dialog"
    >
      <span slot="footer" class="dialog-footer">
        <el-button @click="DialogLogout = false">取 消</el-button>
        <el-button type="primary" @click="LogoutConfirm">确 定</el-button>
      </span>
    </el-dialog>
 
    <el-dialog
      title="请选择你要切换的身份"
      :visible.sync="DialogVisible"
      width="474px"
      height="218px"
      append-to-body
      center
      class="Topbar-el-dialog"
    >
      <div
        v-for="(item, index) in teacherInfo.roleMap"
        :key="index"
        class="Topbar-role"
        :class="{ roleActive: currentRoleObj.roleType == item.roleType }"
        @click="selectRole(item)"
      >
        {{ item.roleName }}
      </div>
 
      <span slot="footer" class="dialog-footer">
        <el-button type="primary" @click="DialogVisible = false">关闭</el-button>
      </span>
    </el-dialog>
    <!-- 筛选项组件 -->
    <filterItems />
  </div>
</template>
 
<script>
import variables from "@/assets/styles/variables.scss";
import { mapState, mapActions, mapGetters, mapMutations } from "vuex";
import $C from "@/assets/js/config.js";
import filterItems from "./Sidebar/filterItems.vue";
 
export default {
  components: { filterItems },
  name: "Topbar",
  data() {
    return {
      delaySearch: false, //搜索延迟
      DialogLogout: false,
      DialogVisible: false, //弹框默认影藏
      // 当前激活一级菜单的 index
      currentIndex: localStorage.getItem("parentPathIndex") || 0,
      // 二级菜单index
      currentChildIndex: localStorage.getItem("childPathIndex") || 0,
      // 角色
      currentRole: "", //当前角色名
      classesByRole: [], //角色下班级
      subjectByClass: [], //班级下学科
      currentGrade: "",
      currentGradeName: "",
      fullscreenLoading: false,
      disabledRole: false,
      // 当前班级
      current_class: "",
      currentSubject: "", //默认显示学科
      activeSubject: ""
    };
  },
  mounted() {
    this.GetUserStoreClasses();
  },
  watch: {
    currentRoleObj: {
      handler(val, old) {
        // 切换角色高亮默认第一个路由
        this.currentIndex = 0;
        this.currentChildIndex = 0;
      },
      deep: true
    }
  },
  computed: {
    ...mapGetters(["avatar", "storeClasses", "name", "school", "gradeList", "routeMenus"]),
    variables() {
      return variables;
    },
 
    // 二级菜单
    subMenus() {
      let menu = this.routeMenus[this.currentIndex]?.children || "";
      return menu;
    },
 
    // 一级路由
    parentMenu() {
      let parent = this.routeMenus[this.currentIndex].path;
      return parent;
    },
 
    // 页面logo图片
    logo() {
      return this.$store.state.user.teacherInfo.schoolVo.logo;
    },
 
    // 教师信息
    teacherInfo() {
      return this.$store.state.user.teacherInfo;
    },
    //角色信息
    currentRoleObj() {
      return this.$store.state.user.current_role;
    }
  },
  methods: {
    ...mapActions({ GetUserStoreClasses: "GetUserStoreClasses" }),
    ...mapMutations([
      "SET_CURRENT_CLASS",
      "SET_CURRENT_ROLE",
      "SET_CURRENT_SUBJECT",
      "SET_GRADE",
      "SET_CURRENT_GRADE",
      "SET_SUBJECT_LIST"
    ]),
    toUserCenter() {
      this.$router.push({ name: "UserCenterHome" });
    },
 
    // 点击一级路由菜单
    selectParentRoute(item, index) {
      this.currentIndex = index;
      localStorage.setItem("parentPathIndex", index);
      localStorage.setItem("childPathIndex", 0);
      let parentRoute = item.path;
      if (item.children) {
        // 有二级路由
        let defaultChild = item.children[0]?.path; //点击跳转默认第一个二级路由
        this.$router.push(`${parentRoute}/${defaultChild}`);
      } else {
        // 没有二级路由
        this.$router.push(parentRoute);
      }
    },
 
    // 子菜单选择事件
    selectChildRoute(item, index) {
      localStorage.setItem("childPathIndex", index);
      this.$router.push(`${this.parentMenu}/${item.path}`);
    },
 
    // 点击确认退出登录
    async LogoutConfirm() {
      this.$store.dispatch("LogOut").then(() => {
        location.href = "/";
      });
      this.DialogLogout = false;
    },
    // 点击退出登录
    logout() {
      this.DialogLogout = true;
    },
    handelShowDialog() {
      this.DialogVisible = true;
      this.disabledRole = true;
      let timer = setTimeout(() => {
        clearTimeout(timer);
        this.disabledRole = false;
      }, 6000);
    },
 
    // 切换角色
    selectRole(item) {
      this.fullscreenLoading = true;
      this.DialogVisible = false;
 
      localStorage.setItem("childPathIndex", 0);
      localStorage.setItem("parentPathIndex", 0);
 
      this.SET_CURRENT_ROLE(item);
      //当前角色下年级列表和默认年级
      if (item.grades[0]) {
        this.SET_GRADE(item.grades);
        this.SET_CURRENT_GRADE(item.grades[0]);
        this.currentGrade = item.grades[0].grade;
      }
 
      //角色下是否存在班级
      if (item.classes[0]) {
        //角色下班级
 
        this.classesByRole = item.classes;
        this.SET_CURRENT_CLASS(item.classes[0]);
        //改变默认班级
        this.current_class = item.classes[0].classNo;
      }
 
      //任课教师、考察科目教师角色下班级
      if (item.roleType == 106 || item.roleType == 113) {
        let currentRoleSub = this.teacherInfo.roleMap[item.roleType].classes.find(
          v => v.classNo == this.current_class
        );
        this.subjectByClass = currentRoleSub.subjects;
        this.currentSubject = currentRoleSub.subjects[0].subject;
        this.SET_CURRENT_SUBJECT(currentRoleSub.subjects[0]);
        this.SET_SUBJECT_LIST(currentRoleSub.subjects);
      }
      this.$store.dispatch("GetRoutes").then(v => {
        let parentRoute = v[0].path;
 
        if (v[0].children) {
          let toIndex = v[0].children[0].path;
          this.$router.push({
            path: `${parentRoute}/${toIndex}`,
            replace: true
          });
        } else {
          this.$router.push(parentRoute);
        }
      });
 
      //计算top高度并传参
      this.$nextTick(() => {
        const childHeight = this.$refs.topBar.offsetHeight;
        this.$emit("getHeight", childHeight);
      });
 
      let timer = setTimeout(() => {
        clearTimeout(timer);
        this.fullscreenLoading = false;
      }, 800);
 
      // });
    },
    //去掉子菜单角色名字段
    filterTitle(title) {
      let roleName = this.currentRole;
      if (title.includes("-")) {
        return title.substr(title.lastIndexOf("-") + 1);
      } else {
        return title.replace(roleName, "");
      }
    }
  }
};
</script>
 
<style lang="scss" scoped>
.topBar {
  &-navi {
    width: 100%;
    background: #fff;
    box-shadow: 0px -1px 0px 0px rgba(0, 0, 0, 0.04) inset;
    height: 55px;
    display: flex;
    .top-menu {
      // width: 100%;
      display: flex;
      justify-content: space-between;
      align-items: center;
 
      .myMenu {
        display: flex;
        align-items: center;
        width: 100%;
        img {
          width: 135px;
        }
        .parentRoute {
          width: 100%;
          > span {
            cursor: pointer;
            margin-left: 30px;
          }
          .activeParent {
            color: #34beea;
          }
        }
        .menuList {
          display: flex;
        }
      }
 
      .right-menu {
        text-align: right;
        width: 240px;
        display: flex;
        align-items: center;
        height: 100%;
 
        &-currentRole {
          margin-right: 10px;
          // width: 80px;
          height: 22px;
          line-height: 22px;
          border-radius: 4px;
          text-align: center;
          color: #34beea;
          background: rgba(52, 190, 234, 0.16);
        }
 
        &:focus {
          outline: none;
        }
 
        .Topbar-dropdown {
          .Topbar-el-dropdown-link {
            cursor: pointer;
          }
        }
        .Topbar-identity {
          display: inline-block;
          color: #777777;
          line-height: 21px;
          margin-right: 10px;
          &:hover {
            // background-color: red;
            color: #34beea;
          }
        }
      }
    }
  }
  .childRoute {
    height: 54px;
    background-color: #fff;
    box-shadow: 0px 4px 4px 0px rgba(209, 209, 209, 0.25);
    margin-bottom: 20px;
    cursor: pointer;
    &-menus {
      display: flex;
      align-items: center;
      > div {
        // line-height: 54px;
        height: 54px;
        padding: 16px 36px;
      }
      .activeChild {
        background: #34beea;
        color: #fff;
      }
    }
  }
}
 
.Topbar-el-dropdown-menu {
  width: 270px;
  height: 220px;
  padding: 32px 0 0 24px;
  overflow: hidden;
 
  div {
    width: 100%;
    height: 32px;
    display: flex;
    align-items: center;
 
    span {
      margin-left: 32px;
    }
  }
 
  .Topbar-Group {
    span:nth-child(1) {
      margin: 0 20px 0 32px;
    }
 
    img {
      // margin-right: 2px;
    }
  }
 
  .Topbar-install {
    display: inline-block;
    width: 56px;
    height: 21px;
    color: #303133;
    line-height: 21px;
    margin: 18px 0 12px 75px;
    white-space: nowrap;
 
    &:hover {
      color: #e54747;
    }
  }
 
  .user-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: 30px;
    height: 42px;
    user-select: none;
 
    > span,
    > a {
      margin: 0;
      padding: 0;
    }
 
    > span {
      margin-bottom: 10px;
      color: #333;
      cursor: pointer;
 
      &:active {
        opacity: 0.5;
      }
    }
 
    > a {
      color: #e54747;
    }
  }
}
 
.Topbar-el-dialog {
  margin-top: 200px;
 
  .el-dialog__header {
    .el-dialog__title {
      margin-top: 30px;
      font-size: 16px;
      color: #606266;
    }
  }
 
  .el-dialog__body {
    .roleActive {
      color: #34beea;
    }
 
    .Topbar-role {
      height: 21px;
      text-align: center;
      font-size: 12px;
      margin-bottom: 21px;
      cursor: pointer;
 
      &:hover {
        color: #34beea;
      }
    }
  }
}
</style>

一级路由循环渲染  currentIndex高亮   添加点击事件

                          :class="{ activeParent: currentIndex == index }"
              v-for="(item, index) in routeMenus"
              :key="index"
              @click="selectParentRoute(item, index)"
            >
              {{ filterTitle(item.meta.title) }}
             
           
         

 

二级路由  currentChildIndex高亮  添加点击事件

       

          :class="{ activeChild: currentChildIndex == index }"

          v-for="(item, index) in subMenus"

          :key="index"

          @click="selectChildRoute(item, index)"

        >

          {{ filterTitle(item.meta.title) }}