.

src/layout/components/AppMain.vue

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+<template>
+  <section class="app-main">
+    <transition name="fade-transform" mode="out-in">
+      <router-view :key="key" />
+    </transition>
+  </section>
+</template>
+
+<script>
+export default {
+  name: 'AppMain',
+  computed: {
+    key() {
+      return this.$route.path
+    }
+  }
+}
+</script>
+
+<style scoped>
+.app-main {
+  /*50 = navbar  */
+  min-height: calc(100vh - 50px);
+  width: 100%;
+  position: relative;
+  overflow: hidden;
+}
+.fixed-header+.app-main {
+  padding-top: 50px;
+}
+</style>
+
+<style lang="scss">
+// fix css style bug in open el-dialog
+.el-popup-parent--hidden {
+  .fixed-header {
+    padding-right: 15px;
+  }
+}
+</style>

src/layout/components/Navbar.vue

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+<template>
+  <div class="navbar">
+    <hamburger :is-active="sidebar.opened" class="hamburger-container" @toggleClick="toggleSideBar" />
+
+    <breadcrumb class="breadcrumb-container" />
+
+    <div class="right-menu">
+      <el-dropdown class="avatar-container" trigger="click">
+        <div class="avatar-wrapper">
+          <img :src="avatar+'?imageView2/1/w/80/h/80'" class="user-avatar">
+          <i class="el-icon-caret-bottom" />
+        </div>
+        <el-dropdown-menu slot="dropdown" class="user-dropdown">
+          <router-link to="/">
+            <el-dropdown-item>
+              Home
+            </el-dropdown-item>
+          </router-link>
+          <a target="_blank" href="https://github.com/PanJiaChen/vue-admin-template/">
+            <el-dropdown-item>Github</el-dropdown-item>
+          </a>
+          <a target="_blank" href="https://panjiachen.github.io/vue-element-admin-site/#/">
+            <el-dropdown-item>Docs</el-dropdown-item>
+          </a>
+          <el-dropdown-item divided @click.native="logout">
+            <span style="display:block;">Log Out</span>
+          </el-dropdown-item>
+        </el-dropdown-menu>
+      </el-dropdown>
+    </div>
+  </div>
+</template>
+
+<script>
+import { mapGetters } from 'vuex'
+import Breadcrumb from '@/components/Breadcrumb/index.vue'
+import Hamburger from '@/components/Hamburger/index.vue'
+
+export default {
+  components: {
+    Breadcrumb,
+    Hamburger
+  },
+  computed: {
+    ...mapGetters([
+      'sidebar',
+      'avatar'
+    ])
+  },
+  methods: {
+    toggleSideBar() {
+      this.$store.dispatch('app/toggleSideBar')
+    },
+    async logout() {
+      await this.$store.dispatch('user/logout')
+      this.$router.push(`/login?redirect=${this.$route.fullPath}`)
+    }
+  }
+}
+</script>
+
+<style lang="scss" scoped>
+.navbar {
+  height: 50px;
+  overflow: hidden;
+  position: relative;
+  background: #fff;
+  box-shadow: 0 1px 4px rgba(0,21,41,.08);
+
+  .hamburger-container {
+    line-height: 46px;
+    height: 100%;
+    float: left;
+    cursor: pointer;
+    transition: background .3s;
+    -webkit-tap-highlight-color:transparent;
+
+    &:hover {
+      background: rgba(0, 0, 0, .025)
+    }
+  }
+
+  .breadcrumb-container {
+    float: left;
+  }
+
+  .right-menu {
+    float: right;
+    height: 100%;
+    line-height: 50px;
+
+    &:focus {
+      outline: none;
+    }
+
+    .right-menu-item {
+      display: inline-block;
+      padding: 0 8px;
+      height: 100%;
+      font-size: 18px;
+      color: #5a5e66;
+      vertical-align: text-bottom;
+
+      &.hover-effect {
+        cursor: pointer;
+        transition: background .3s;
+
+        &:hover {
+          background: rgba(0, 0, 0, .025)
+        }
+      }
+    }
+
+    .avatar-container {
+      margin-right: 30px;
+
+      .avatar-wrapper {
+        margin-top: 5px;
+        position: relative;
+
+        .user-avatar {
+          cursor: pointer;
+          width: 40px;
+          height: 40px;
+          border-radius: 10px;
+        }
+
+        .el-icon-caret-bottom {
+          cursor: pointer;
+          position: absolute;
+          right: -20px;
+          top: 25px;
+          font-size: 12px;
+        }
+      }
+    }
+  }
+}
+</style>

src/layout/components/Sidebar/Link.vue

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+<template>
+  <component :is="type" v-bind="linkProps(to)">
+    <slot />
+  </component>
+</template>
+
+<script>
+import { isExternal } from '@/utils/validate'
+
+export default {
+  props: {
+    to: {
+      type: String,
+      required: true
+    }
+  },
+  computed: {
+    isExternal() {
+      return isExternal(this.to)
+    },
+    type() {
+      if (this.isExternal) {
+        return 'a'
+      }
+      return 'router-link'
+    }
+  },
+  methods: {
+    linkProps(to) {
+      if (this.isExternal) {
+        return {
+          href: to,
+          target: '_blank',
+          rel: 'noopener'
+        }
+      }
+      return {
+        to: to
+      }
+    }
+  }
+}
+</script>

src/layout/components/Sidebar/Logo.vue

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+<template>
+  <div class="sidebar-logo-container" :class="{'collapse':collapse}">
+    <transition name="sidebarLogoFade">
+      <router-link v-if="collapse" key="collapse" class="sidebar-logo-link" to="/">
+        <img v-if="logo" :src="logo" 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="logo" class="sidebar-logo">
+        <h1 class="sidebar-title">{{ title }} </h1>
+      </router-link>
+    </transition>
+  </div>
+</template>
+
+<script>
+export default {
+  name: 'SidebarLogo',
+  props: {
+    collapse: {
+      type: Boolean,
+      required: true
+    }
+  },
+  data() {
+    return {
+      title: 'Vue Admin Template',
+      logo: 'https://wpimg.wallstcn.com/69a1c46c-eb1c-4b46-8bd4-e9e686ef5251.png'
+    }
+  }
+}
+</script>
+
+<style lang="scss" scoped>
+.sidebarLogoFade-enter-active {
+  transition: opacity 1.5s;
+}
+
+.sidebarLogoFade-enter,
+.sidebarLogoFade-leave-to {
+  opacity: 0;
+}
+
+.sidebar-logo-container {
+  position: relative;
+  width: 100%;
+  height: 50px;
+  line-height: 50px;
+  background: #2b2f3a;
+  text-align: center;
+  overflow: hidden;
+
+  & .sidebar-logo-link {
+    height: 100%;
+    width: 100%;
+
+    & .sidebar-logo {
+      width: 32px;
+      height: 32px;
+      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>

src/layout/components/Sidebar/SidebarItem.vue

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+<template>
+  <div v-if="!item.hidden">
+    <template v-if="hasOneShowingChild(item.children,item) && (!onlyOneChild.children||onlyOneChild.noShowingChildren)&&!item.alwaysShow">
+      <app-link v-if="onlyOneChild.meta" :to="resolvePath(onlyOneChild.path)">
+        <el-menu-item :index="resolvePath(onlyOneChild.path)" :class="{'submenu-title-noDropdown':!isNest}">
+          <item :icon="onlyOneChild.meta.icon||(item.meta&&item.meta.icon)" :title="onlyOneChild.meta.title" />
+        </el-menu-item>
+      </app-link>
+    </template>
+
+    <el-submenu v-else ref="subMenu" :index="resolvePath(item.path)" popper-append-to-body>
+      <template #title>
+        <svg
+            v-if="item.meta && item.meta.icon"
+            class="icon"
+            aria-hidden="true"
+            font-size="16px"
+        >
+          <use :xlink:href="item.meta.icon" />
+        </svg>
+        <span v-if="item.meta && item.meta.title">{{
+            t("route." + item.meta.title)
+          }}</span>
+      </template>
+
+      <sidebar-item
+        v-for="child in item.children"
+        :key="child.path"
+        :is-nest="true"
+        :item="child"
+        :base-path="resolvePath(child.path)"
+        class="nest-menu"
+      />
+    </el-submenu>
+  </div>
+</template>
+
+<script>
+import path from 'path'
+import { isExternal } from '@utils/validate'
+import AppLink from './Link.vue'
+
+export default {
+  name: 'SidebarItem',
+  components: {  AppLink },
+  props: {
+    // route object
+    item: {
+      type: Object,
+      required: true
+    },
+    isNest: {
+      type: Boolean,
+      default: false
+    },
+    basePath: {
+      type: String,
+      default: ''
+    }
+  },
+  data() {
+    // To fix https://github.com/PanJiaChen/vue-admin-template/issues/237
+    // TODO: refactor with render function
+    this.onlyOneChild = null
+    return {}
+  },
+  methods: {
+    hasOneShowingChild(children = [], parent) {
+      const showingChildren = children.filter(item => {
+        if (item.hidden) {
+          return false
+        } else {
+          // Temp set(will be used if only has one showing child)
+          this.onlyOneChild = item
+          return true
+        }
+      })
+
+      // When there is only one child router, the child router is displayed by default
+      if (showingChildren.length === 1) {
+        return true
+      }
+
+      // Show parent if there are no child router to display
+      if (showingChildren.length === 0) {
+        this.onlyOneChild = { ... parent, path: '', noShowingChildren: true }
+        return true
+      }
+
+      return false
+    },
+    resolvePath(routePath) {
+      if (isExternal(routePath)) {
+        return routePath
+      }
+      if (isExternal(this.basePath)) {
+        return this.basePath
+      }
+      return path.resolve(this.basePath, routePath)
+    }
+  }
+}
+</script>

src/layout/components/Sidebar/index.vue

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+<template>
+  <div :class="{'has-logo':showLogo}">
+    <logo v-if="showLogo" :collapse="isCollapse" />
+    <el-scrollbar wrap-class="scrollbar-wrapper">
+      <el-menu
+        :default-active="activeMenu"
+        :collapse="isCollapse"
+        :background-color="variables.menuBg"
+        :text-color="variables.menuText"
+        :unique-opened="false"
+        :active-text-color="variables.menuActiveText"
+        :collapse-transition="false"
+        mode="vertical"
+      >
+        <sidebar-item v-for="route in routes" :key="route.path" :item="route" :base-path="route.path" />
+      </el-menu>
+    </el-scrollbar>
+  </div>
+</template>
+
+<script>
+import { mapGetters } from 'vuex'
+import Logo from './Logo.vue'
+import SidebarItem from './SidebarItem.vue'
+import variables from '@styles/variables.scss'
+
+export default {
+  components: { SidebarItem, Logo },
+  computed: {
+    ...mapGetters([
+      'sidebar'
+    ]),
+    routes() {
+      return this.$router.options.routes
+    },
+    activeMenu() {
+      const route = this.$route
+      const { meta, path } = route
+      // if set path, the sidebar will highlight the path you set
+      if (meta.activeMenu) {
+        return meta.activeMenu
+      }
+      return path
+    },
+    showLogo() {
+      return this.$store.state.settings.sidebarLogo
+    },
+    variables() {
+      return variables
+    },
+    isCollapse() {
+      return !this.sidebar.opened
+    }
+  }
+}
+</script>

src/layout/components/index.ts

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+export { default as Navbar } from './Navbar.vue'
+export { default as Sidebar } from './Sidebar/index.vue'
+export { default as AppMain } from './AppMain.vue'

src/layout/index.vue

@@ -1,57 +1,93 @@
 <template>
-  <el-container>
-    <el-header>Header</el-header>
-    <el-container>
-      <el-aside width="200px">Aside</el-aside>
-      <el-container>
-        <el-main>
-          <router-view/>
-        </el-main>
-        <el-footer>Footer</el-footer>
-      </el-container>
-    </el-container>
-  </el-container>
+  <div :class="classObj" class="app-wrapper">
+    <div v-if="device==='mobile'&&sidebar.opened" class="drawer-bg" @click="handleClickOutside" />
+    <sidebar class="sidebar-container" />
+    <div class="main-container">
+      <div :class="{'fixed-header':fixedHeader}">
+        <navbar />
+      </div>
+      <app-main />
+    </div>
+  </div>
 </template>
 
 <script>
+import { Navbar, Sidebar, AppMain } from './components'
+import ResizeMixin from './mixin/ResizeHandler'
+
 export default {
-  name: "index"
+  name: 'Layout',
+  components: {
+    Navbar,
+    Sidebar,
+    AppMain
+  },
+  mixins: [ResizeMixin],
+  computed: {
+    sidebar() {
+      return this.$store.state.app.sidebar
+    },
+    device() {
+      return this.$store.state.app.device
+    },
+    fixedHeader() {
+      return true
+    },
+    classObj() {
+      return {
+        hideSidebar: !this.sidebar.opened,
+        openSidebar: this.sidebar.opened,
+        withoutAnimation: this.sidebar.withoutAnimation,
+        mobile: this.device === 'mobile'
+      }
+    }
+  },
+  methods: {
+    handleClickOutside() {
+      this.$store.dispatch('app/closeSideBar', { withoutAnimation: false })
+    }
+  }
 }
 </script>
 
-<style scoped>
-.el-header,
-.el-footer {
-  background-color: #b3c0d1;
-  color: var(--el-text-color-primary);
-  text-align: center;
-  line-height: 60px;
+<style lang="scss" scoped>
+@import "@styles/mixin.scss";
+@import "@styles/variables.scss";
+
+.app-wrapper {
+  @include clearfix;
+  position: relative;
+  height: 100%;
+  width: 100%;
+  &.mobile.openSidebar{
+    position: fixed;
+    top: 0;
+  }
+}
+.drawer-bg {
+  background: #000;
+  opacity: 0.3;
+  width: 100%;
+  top: 0;
+  height: 100%;
+  position: absolute;
+  z-index: 999;
 }
 
-.el-aside {
-  background-color: #d3dce6;
-  color: var(--el-text-color-primary);
-  text-align: center;
-  line-height: 200px;
+.fixed-header {
+  position: fixed;
+  top: 0;
+  right: 0;
+  z-index: 9;
+  width: calc(100% - #{$sideBarWidth});
+  transition: width 0.28s;
 }
 
-.el-main {
-  background-color: #e9eef3;
-  color: var(--el-text-color-primary);
-  text-align: center;
-  line-height: 160px;
+.hideSidebar .fixed-header {
+  width: calc(100% - 54px)
 }
 
-body > .el-container {
-  margin-bottom: 40px;
+.mobile .fixed-header {
+  width: 100%;
 }
-
-.el-container:nth-child(5) .el-aside,
-.el-container:nth-child(6) .el-aside {
-  line-height: 260px;
-}
-
-.el-container:nth-child(7) .el-aside {
-  line-height: 320px;
-}
-</style>
+</style>

src/layout/mixin/ResizeHandler.ts

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+import {userStore} from '@/store'
+import {computed, watch} from "vue";
+import { useRoute } from 'vue-router'
+const store = userStore()
+
+const {body} = document
+const WIDTH = 992 // refer to Bootstrap's responsive design
+
+
+export default function () {
+    const device = computed(() => {
+        return store.state.app.device
+    })
+
+    const sidebar = computed(() => {
+        return store.state.app.sidebar
+    })
+
+    const isMobile = () => {
+        const rect = body.getBoundingClientRect()
+        return rect.width - 1 < WIDTH
+    }
+
+    const resizeHandler = () => {
+        if (!document.hidden) {
+            store.dispatch('app/toggleDevice', isMobile() ? 'mobile' : 'desktop')
+            if (isMobile()) {
+                store.dispatch('app/closeSideBar', {withoutAnimation: true})
+            }
+        }
+    }
+
+    const resizeMounted = () => {
+        if(isMobile()){
+            store.dispatch('app/toggleDevice', 'mobile')
+            store.dispatch('app/closeSideBar', {withoutAnimation: true})
+        }
+    }
+    const addEventListenerOnResize = () => {
+        window.addEventListener('resize', resizeHandler)
+    }
+
+    const removeEventListenerResize = () => {
+        window.removeEventListener('resize', resizeHandler)
+    }
+
+
+    const currentRoute = useRoute()
+    const watchRouter = watch(() => currentRoute.name, () => {
+        if (store.state.app.device === 'mobile' && store.state.app.sidebar.opened) {
+            store.dispatch('app/closeSideBar', false)
+        }
+    })
+
+    return {
+        device,
+        sidebar,
+        resizeMounted,
+        addEventListenerOnResize,
+        removeEventListenerResize,
+        watchRouter
+    }
+}