<template>
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<div class="menu" :class="{collapse: menuData.collapse}">
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<div class="logo">
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<div><img src="@/assets/logo.png"></div>
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<h1 :class="{hidden: menuData.collapse}">近快后台管理系统</h1>
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</div>
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<scrollbar>
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<el-menu
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ref="menu"
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:default-active="activeIndex"
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text-color="#fff"
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active-text-color="#fff"
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:collapse="menuData.collapse"
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:default-openeds="defaultOpeneds"
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:collapse-transition="false"
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@select="handleSelect"
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>
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<MenuItems v-for="menu in menuData.list" :key="menu.index" :menu="menu" :is-root-menu="true"/>
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</el-menu>
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</scrollbar>
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</div>
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</template>
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<script>
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import { mapState } from 'vuex'
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import MenuItems from './MenuItems'
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import Scrollbar from './Scrollbar'
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export default {
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name: 'Menu',
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components: { Scrollbar, MenuItems },
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computed: {
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...mapState(['menuData']),
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// 选中的菜单index
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activeIndex () {
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let path = this.$route.path
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if (path.endsWith('/')) {
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path = path.substring(0, path.length - 1)
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}
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const menuConfig = this.__getMenuConfig(path, 'url', this.menuData.list)
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if (menuConfig == null) {
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return null
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}
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return menuConfig.index
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},
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// 默认展开的菜单index
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defaultOpeneds () {
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return this.menuData.list.map(menu => menu.index)
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}
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},
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methods: {
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/**
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* 处理菜单选中
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*
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* @param menuIndex 选中的菜单索引
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*/
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handleSelect (menuIndex) {
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const menuConfig = this.__getMenuConfig(menuIndex, 'index', this.menuData.list)
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// 找不到页面
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try {
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require('@/views' + menuConfig.url)
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} catch (e) {
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this.$tip.error('未找到页面文件@/views' + menuConfig.url + '.vue，请检查菜单路径是否正确')
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}
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// 点击当前菜单不做处理
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if (menuConfig.url === this.$route.path) {
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return
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}
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if (menuConfig.url == null || menuConfig.url.trim().length === 0) {
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return
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}
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this.$router.push(menuConfig.url)
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},
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/**
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* 获取菜单配置
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*
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* @param value 唯一标识值
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* @param key 唯一标识key
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* @param menus 查找菜单范围
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* @returns {null|*|null}
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* @private
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*/
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__getMenuConfig (value, key, menus) {
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for (const menu of menus) {
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if (menu[key] === value) {
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return menu
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}
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if (menu.children != null && menu.children.length > 0) {
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const menuConfig = this.__getMenuConfig(value, key, menu.children)
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if (menuConfig != null) {
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return menuConfig
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}
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}
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}
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return null
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}
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}
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}
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</script>
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<style lang="scss" scoped>
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@import "@/assets/style/variables.scss";
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.menu {
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height: 100%;
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display: flex;
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flex-direction: column;
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// LOGO
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.logo {
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height: 60px;
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flex-shrink: 0;
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line-height: 60px;
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overflow: hidden;
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display: flex;
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background: $primary-color - 20;
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padding: 0 16px;
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& > div {
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width: 32px;
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flex-shrink: 0;
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margin-right: 12px;
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img {
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width: 100%;
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flex-shrink: 0;
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vertical-align: middle;
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position: relative;
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top: -2px;
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}
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}
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h1 {
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font-size: 16px;
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font-weight: 500;
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transition: opacity ease .3s;
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overflow: hidden;
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&.hidden {
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opacity: 0;
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}
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}
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}
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}
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</style>
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<style lang="scss">
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@import "@/assets/style/variables.scss";
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// 菜单样式
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.el-menu {
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border-right: 0 !important;
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user-select: none;
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background: $primary-color !important;
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.el-menu-item {
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background: $primary-color;
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// 选中状态
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&.is-active {
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background: $primary-color - 40 !important;
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}
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// 悬浮
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&:hover {
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background-color: $primary-color - 12;
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}
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&:focus {
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background: $primary-color;
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}
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}
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// 子菜单
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.el-submenu {
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.el-submenu__title{
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background-color: $primary-color;
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}
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&.is-active {
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.el-submenu__title{
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background-color: $primary-color - 20;
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}
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.el-menu .el-menu-item{
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background-color: $primary-color - 20;
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// 悬浮
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&:hover {
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background-color: $primary-color - 30;
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}
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}
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}
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// 菜单上下箭头
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.el-submenu__title i {
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color: #f7f7f7;
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}
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}
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// 菜单图标
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i:not(.el-submenu__icon-arrow) {
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color: #f7f7f7 !important;
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position: relative;
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top: -1px;
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// 自定义图标
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&[class^="eva-icon-"] {
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width: 24px;
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margin-right: 5px;
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background-size: 15px;
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}
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}
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}
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</style>
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