<template>
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<el-menu
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:default-active="activeMenu"
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mode="horizontal"
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@select="handleSelect"
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>
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<template v-for="(item, index) in topMenus">
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<el-menu-item :style="{'--theme': theme}" :index="item.path" :key="index" v-if="index < visibleNumber">
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<svg-icon
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v-if="item.meta && item.meta.icon && item.meta.icon !== '#'"
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:icon-class="item.meta.icon"/>
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{{ item.meta.title }}
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</el-menu-item>
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</template>
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<!-- 顶部菜单超出数量折叠 -->
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<el-submenu :style="{'--theme': theme}" index="more" :key="visibleNumber" v-if="topMenus.length > visibleNumber">
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<template slot="title">更多菜单</template>
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<template v-for="(item, index) in topMenus">
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<el-menu-item
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:index="item.path"
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:key="index"
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v-if="index >= visibleNumber">
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<svg-icon
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v-if="item.meta && item.meta.icon && item.meta.icon !== '#'"
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:icon-class="item.meta.icon"/>
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{{ item.meta.title }}
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</el-menu-item>
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</template>
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</el-submenu>
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</el-menu>
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</template>
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<script>
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import { constantRoutes } from "@/router"
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import { isHttp } from "@/utils/validate"
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// 隐藏侧边栏路由
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const hideList = ['/index', '/user/profile']
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export default {
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data() {
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return {
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// 顶部栏初始数
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visibleNumber: 5,
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// 当前激活菜单的 index
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currentIndex: undefined
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}
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},
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computed: {
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theme() {
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return this.$store.state.settings.theme
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},
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// 顶部显示菜单
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topMenus() {
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let topMenus = []
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this.routers.map((menu) => {
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if (menu.hidden !== true) {
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// 兼容顶部栏一级菜单内部跳转
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if (menu.path === '/' && menu.children) {
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topMenus.push(menu.children[0])
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} else {
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topMenus.push(menu)
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}
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}
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})
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return topMenus
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},
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// 所有的路由信息
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routers() {
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return this.$store.state.permission.topbarRouters
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},
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// 设置子路由
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childrenMenus() {
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var childrenMenus = []
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this.routers.map((router) => {
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for (var item in router.children) {
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if (router.children[item].parentPath === undefined) {
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if(router.path === "/") {
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router.children[item].path = "/" + router.children[item].path
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} else {
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if(!isHttp(router.children[item].path)) {
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router.children[item].path = router.path + "/" + router.children[item].path
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}
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}
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router.children[item].parentPath = router.path
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}
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childrenMenus.push(router.children[item])
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}
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})
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return constantRoutes.concat(childrenMenus)
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},
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// 默认激活的菜单
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activeMenu() {
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const path = this.$route.path
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let activePath = path
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if (path !== undefined && path.lastIndexOf("/") > 0 && hideList.indexOf(path) === -1) {
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const tmpPath = path.substring(1, path.length)
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if (!this.$route.meta.link) {
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activePath = "/" + tmpPath.substring(0, tmpPath.indexOf("/"))
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this.$store.dispatch('app/toggleSideBarHide', false)
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}
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} else if(!this.$route.children) {
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activePath = path
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this.$store.dispatch('app/toggleSideBarHide', true)
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}
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this.activeRoutes(activePath)
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return activePath
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},
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},
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beforeMount() {
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window.addEventListener('resize', this.setVisibleNumber)
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},
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beforeDestroy() {
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window.removeEventListener('resize', this.setVisibleNumber)
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},
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mounted() {
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this.setVisibleNumber()
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},
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methods: {
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// 根据宽度计算设置显示栏数
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setVisibleNumber() {
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const width = document.body.getBoundingClientRect().width / 3
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this.visibleNumber = parseInt(width / 85)
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},
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// 菜单选择事件
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handleSelect(key, keyPath) {
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this.currentIndex = key
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const route = this.routers.find(item => item.path === key)
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if (isHttp(key)) {
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// http(s):// 路径新窗口打开
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window.open(key, "_blank")
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} else if (!route || !route.children) {
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// 没有子路由路径内部打开
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const routeMenu = this.childrenMenus.find(item => item.path === key)
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if (routeMenu && routeMenu.query) {
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let query = JSON.parse(routeMenu.query)
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this.$router.push({ path: key, query: query })
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} else {
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this.$router.push({ path: key })
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}
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this.$store.dispatch('app/toggleSideBarHide', true)
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} else {
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// 显示左侧联动菜单
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this.activeRoutes(key)
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this.$store.dispatch('app/toggleSideBarHide', false)
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}
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},
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// 当前激活的路由
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activeRoutes(key) {
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var routes = []
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if (this.childrenMenus && this.childrenMenus.length > 0) {
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this.childrenMenus.map((item) => {
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if (key == item.parentPath || (key == "index" && "" == item.path)) {
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routes.push(item)
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}
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})
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}
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if(routes.length > 0) {
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this.$store.commit("SET_SIDEBAR_ROUTERS", routes)
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} else {
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this.$store.dispatch('app/toggleSideBarHide', true)
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}
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}
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},
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}
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</script>
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<style lang="scss">
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.topmenu-container.el-menu--horizontal > .el-menu-item {
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float: left;
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height: 50px !important;
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line-height: 50px !important;
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color: #999093 !important;
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padding: 0 5px !important;
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margin: 0 10px !important;
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}
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.topmenu-container.el-menu--horizontal > .el-menu-item.is-active, .el-menu--horizontal > .el-submenu.is-active .el-submenu__title {
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border-bottom: 2px solid #{'var(--theme)'} !important;
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color: #303133;
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}
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/* submenu item */
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.topmenu-container.el-menu--horizontal > .el-submenu .el-submenu__title {
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float: left;
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height: 50px !important;
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line-height: 50px !important;
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color: #999093 !important;
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padding: 0 5px !important;
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margin: 0 10px !important;
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}
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</style>
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