<template>
  <el-row class="container">
    <el-col :span="24" class="header">
      <el-col :span="6"
              class="logo"
              :class="collapsed?'logo-collapse-width':'logo-width'">
        {{collapsed?'':sysName}}
      </el-col>
      <el-col :span="6">
        <div class="tools"
             @click.prevent="collapse">
          <i class="fa fa-align-justify"></i>
        </div>
      </el-col>
      <el-col :span="4" class="userinfo">
        <el-dropdown trigger="hover">
                    <span class="el-dropdown-link userinfo-inner">
                        <img :src="this.sysUserAvatar"/>{{sysUserName}}</span>
          <el-dropdown-menu slot="dropdown">
            <el-dropdown-item>我的消息</el-dropdown-item>
            <el-dropdown-item>设置</el-dropdown-item>
            <el-dropdown-item divided @click.native="logout">退出登录
            </el-dropdown-item>
          </el-dropdown-menu>
        </el-dropdown>
      </el-col>
    </el-col>
    <el-col :span="24" class="main">
      <aside :class="collapsed?'menu-collapsed':'menu-expanded'">
        <!--导航菜单-->
        <el-menu :default-active="$route.path"
                 class="el-menu-vertical-demo"
                 @open="handleopen"
                 @close="handleclose"
                 @select="handleselect"
                 unique-opened
                 router
                 v-show="!collapsed">
          <template v-for="(item,index) in $router.options.routes"
                    v-if="!item.hidden">
            <el-submenu :index="index+''" v-if="!item.leaf">
              <template slot="title">
                <i :class="item.iconCls"></i>
                {{item.name}}
              </template>
              <el-menu-item v-for="child in item.children"
                            :key="child.path"
                            :index="child.path"
                            v-if="!child.hidden">
                {{child.name}}
              </el-menu-item>
            </el-submenu>
            <el-menu-item v-if="item.leaf&&item.children.length>0"
                          :key="item.children[0].path"
                          :index="item.children[0].path">
              <i :class="item.iconCls"></i>
              {{item.children[0].name}}
            </el-menu-item>
          </template>
        </el-menu>
        <!--导航菜单-折叠后-->
        <ul class="el-menu el-menu-vertical-demo collapsed"
            v-show="collapsed"
            ref="menuCollapsed">
          <li v-for="(item,index) in $router.options.routes"
              v-if="!item.hidden" class="el-submenu item">
            <template v-if="!item.leaf">
              <div class="el-submenu__title"
                   style="padding-left: 20px;"
                   @mouseover="showMenu(index,true)"
                   @mouseout="showMenu(index,false)">
                <i :class="item.iconCls"></i>
              </div>
              <ul class="el-menu submenu"
                  :class="'submenu-hook-'+index"
                  @mouseover="showMenu(index,true)"
                  @mouseout="showMenu(index,false)">
                <li v-for="child in item.children"
                    v-if="!child.hidden"
                    class="el-menu-item"
                    style="padding-left: 40px;"
                    :class="$route.path==child.path?'is-active':''"
                    @click="$router.push(child.path)">
                  {{child.name}}
                </li>
              </ul>
            </template>
            <template v-else>
              <li class="el-submenu ">
                <div class="el-submenu__title el-menu-item"
                    style="padding-left: 20px;height: 56px;line-height: 56px;padding: 0 20px;"
                    :class="$route.path==item.children[0].path?'is-active':''"
                    @click="$router.push(item.children[0].path)">
                  <i :class="item.iconCls"></i>
                </div>
              </li>
            </template>
          </li>
        </ul>
      </aside>
      <section class="content-container">
        <div class="grid-content bg-purple-light">
          <el-col :span="24" class="breadcrumb-container">
            <!--<strong class="title">{{$route.name}}</strong>-->
            <el-breadcrumb separator="/" class="breadcrumb-inner">
              <el-breadcrumb-item v-for="item in $route.matched"
                                  :to="{path:item.path}"
                                  :key="item.name">
                {{ item.name }}
              </el-breadcrumb-item>
            </el-breadcrumb>
          </el-col>
          <el-col :span="24" class="content-wrapper">
            <transition name="fade" mode="out-in">
              <router-view></router-view>
            </transition>
          </el-col>
        </div>
      </section>
    </el-col>
  </el-row>
</template>

<script>
  export default {
    data () {
      return {
        sysName: 'vue-admin',
        collapsed: false,
        sysUserName: 'admin',
        sysUserAvatar: 'https://raw.githubusercontent.com/taylorchen709/markdown-images/master/vueadmin/user.png'
      }
    },
    methods: {
      handleopen () {
        // console.log('handleopen');
      },
      handleclose () {
        // console.log('handleclose');
      },
      handleselect: function (a, b) {
      },
      // 退出登录
      logout: function () {
        let _this = this
        this.$confirm('确认退出吗?', '提示', {
          // type: 'warning'
        }).then(() => {
          sessionStorage.removeItem('user')
          _this.$router.push('/login')
        }).catch(() => {

        })
      },
      // 折叠导航栏
      collapse: function () {
        this.collapsed = !this.collapsed
      },
      showMenu (i, status) {
        this.$refs.menuCollapsed.getElementsByClassName('submenu-hook-' + i)[0].style.display = status ? 'block' : 'none'
      }
    },
    mounted () {
    }
  }
</script>

<style scoped lang="scss" rel="stylesheet/scss">
  @import '../styles/vars';

  .container {
    position: absolute;
    top: 0px;
    bottom: 0px;
    width: 100%;
    .header {
      height: 60px;
      line-height: 60px;
      background: $color-primary;
      color: #fff;
      .userinfo {
        text-align: right;
        padding-right: 35px;
        float: right;
        .userinfo-inner {
          cursor: pointer;
          color: #fff;
          img {
            width: 40px;
            height: 40px;
            border-radius: 20px;
            margin: 10px 0px 10px 10px;
            float: right;
          }
        }
      }
      .logo {
        height: 60px;
        font-size: 22px;
        padding-left: 20px;
        padding-right: 20px;
        border-color: rgba(238, 241, 146, 0.3);
        border-right-width: 1px;
        border-right-style: solid;
        img {
          width: 40px;
          float: left;
          margin: 10px 10px 10px 18px;
        }
        .txt {
          color: #fff;
        }
      }
      .logo-width {
        width: 230px;
      }
      .logo-collapse-width {
        width: 60px
      }
      .tools {
        padding: 0px 23px;
        width: 14px;
        height: 60px;
        line-height: 60px;
        cursor: pointer;
      }
    }
    .main {
      display: flex;
      position: absolute;
      top: 60px;
      bottom: 0px;
      overflow: hidden;
      aside {
        flex: 0 0 230px;
        width: 230px;
        .el-menu {
          height: 100%;
        }
        .collapsed {
          width: 60px;
          .item {
            position: relative;
          }
          .submenu {
            position: absolute;
            top: 0px;
            left: 60px;
            z-index: 99999;
            height: auto;
            display: none;
          }
        }
      }
      .menu-collapsed {
        flex: 0 0 60px;
        width: 60px;
      }
      .menu-expanded {
        flex: 0 0 230px;
        width: 230px;
        height:100%;
        overflow-y: scroll;
      }
      .content-container {
        flex: 1;
        overflow-y: scroll;
        padding: 20px;
        .breadcrumb-container {
          .title {
            width: 200px;
            float: left;
            color: #475669;
          }
          .breadcrumb-inner {
            float: left;
            margin-bottom: 15px;
          }
        }
        .content-wrapper {
          background-color: #fff;
          box-sizing: border-box;
        }
      }
    }
  }
</style>
