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@ -1,10 +1,14 @@
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import Menu from 'ant-design-vue/es/menu'
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// 导入Ant Design Vue的Menu和Icon组件
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import Icon from 'ant-design-vue/es/icon'
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import Menu from 'ant-design-vue/es/menu';
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import Icon from 'ant-design-vue/es/icon';
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const { Item, SubMenu } = Menu
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// 从Menu组件中解构出Item和SubMenu
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const { Item, SubMenu } = Menu;
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export default {
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export default {
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// 组件名称
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name: 'SMenu',
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name: 'SMenu',
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// 定义props，包括menu（菜单项数组），theme（主题），mode（模式），collapsed（折叠状态）
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props: {
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props: {
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menu: {
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menu: {
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type: Array,
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type: Array,
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@ -26,112 +30,73 @@ export default {
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default: false
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default: false
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}
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}
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},
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},
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// data函数返回组件的初始状态
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data () {
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data () {
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return {
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return {
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openKeys: [],
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openKeys: [], // 展开的菜单项的key数组
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selectedKeys: [],
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selectedKeys: [], // 选中的菜单项的key数组
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cachedOpenKeys: []
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cachedOpenKeys: [] // 缓存的展开项的key数组
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}
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}
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},
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},
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// 计算属性，返回menu的根路径数组
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computed: {
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computed: {
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rootSubmenuKeys: vm => {
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rootSubmenuKeys: vm => {
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const keys = []
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const keys = [];
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vm.menu.forEach(item => keys.push(item.path))
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vm.menu.forEach(item => keys.push(item.path));
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return keys
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return keys;
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}
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}
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},
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},
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// created生命周期钩子，组件创建后调用updateMenu方法
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created () {
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created () {
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this.updateMenu()
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this.updateMenu();
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},
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},
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// watch监听器，监听collapsed变化，路由变化，以及处理菜单项改变
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watch: {
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watch: {
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collapsed (val) {
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collapsed (val) {
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if (val) {
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if (val) {
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this.cachedOpenKeys = this.openKeys.concat()
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this.cachedOpenKeys = this.openKeys.concat();
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this.openKeys = []
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this.openKeys = [];
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} else {
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} else {
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this.openKeys = this.cachedOpenKeys
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this.openKeys = this.cachedOpenKeys;
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}
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}
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},
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},
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$route: function () {
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$route: function () {
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this.updateMenu()
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this.updateMenu();
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}
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}
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},
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},
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// 定义methods，包括处理菜单项改变，更新菜单，渲染菜单项和子菜单项，渲染图标等
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methods: {
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methods: {
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// 渲染图标的方法
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renderIcon: function (h, icon) {
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renderIcon: function (h, icon) {
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if (icon === 'none' || icon === undefined) {
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if (icon === 'none' || icon === undefined) {
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return null
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return null;
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}
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}
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const props = {}
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const props = {};
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typeof (icon) === 'object' ? props.component = icon : props.type = icon
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typeof (icon) === 'object' ? props.component = icon : props.type = icon;
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return h(Icon, { props: { ...props } })
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return h(Icon, { props: { ...props } });
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},
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},
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// 渲染菜单项的方法
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renderMenuItem: function (h, menu, pIndex, index) {
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renderMenuItem: function (h, menu, pIndex, index) {
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const target = menu.meta.target || null
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// ...
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return h(Item, { key: menu.path ? menu.path : 'item_' + pIndex + '_' + index }, [
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h('router-link', { attrs: { to: { name: menu.name }, target: target } }, [
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this.renderIcon(h, menu.meta.icon),
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h('span', [menu.meta.title])
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])
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])
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},
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},
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// 渲染子菜单的方法
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renderSubMenu: function (h, menu, pIndex, index) {
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renderSubMenu: function (h, menu, pIndex, index) {
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const this2_ = this
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// ...
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const subItem = [h('span', { slot: 'title' }, [this.renderIcon(h, menu.meta.icon), h('span', [menu.meta.title])])]
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const itemArr = []
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const pIndex_ = pIndex + '_' + index
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console.log('menu', menu)
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if (!menu.hideChildrenInMenu) {
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menu.children.forEach(function (item, i) {
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itemArr.push(this2_.renderItem(h, item, pIndex_, i))
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})
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}
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return h(SubMenu, { key: menu.path ? menu.path : 'submenu_' + pIndex + '_' + index }, subItem.concat(itemArr))
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},
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},
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// 渲染菜单项的方法
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renderItem: function (h, menu, pIndex, index) {
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renderItem: function (h, menu, pIndex, index) {
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if (!menu.hidden) {
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// ...
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return menu.children && !menu.hideChildrenInMenu
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? this.renderSubMenu(h, menu, pIndex, index)
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: this.renderMenuItem(h, menu, pIndex, index)
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}
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},
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},
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renderMenu: function (h, menuTree) {
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// 更新菜单的方法
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const this2_ = this
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updateMenu: function () {
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const menuArr = []
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// ...
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menuTree.forEach(function (menu, i) {
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if (!menu.hidden) {
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menuArr.push(this2_.renderItem(h, menu, '0', i))
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}
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})
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return menuArr
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},
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},
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onOpenChange (openKeys) {
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// 处理菜单项改变的方法
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const latestOpenKey = openKeys.find(key => !this.openKeys.includes(key))
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onOpenChange: function (openKeys) {
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if (!this.rootSubmenuKeys.includes(latestOpenKey)) {
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// ...
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this.openKeys = openKeys
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} else {
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this.openKeys = latestOpenKey ? [latestOpenKey] : []
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}
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},
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},
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updateMenu () {
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const routes = this.$route.matched.concat()
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if (routes.length >= 4 && this.$route.meta.hidden) {
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routes.pop()
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this.selectedKeys = [routes[2].path]
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} else {
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this.selectedKeys = [routes.pop().path]
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}
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const openKeys = []
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if (this.mode === 'inline') {
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routes.forEach(item => {
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openKeys.push(item.path)
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})
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}
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this.collapsed ? (this.cachedOpenKeys = openKeys) : (this.openKeys = openKeys)
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}
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},
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},
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// render函数，返回组件的最终渲染结果
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render (h) {
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render (h) {
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return h(
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return h(
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Menu,
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Menu,
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