index.js
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import Menu from 'ant-design-vue/es/menu'
import Icon from 'ant-design-vue/es/icon'
const { Item, SubMenu } = Menu
export default {
name: 'SMenu',
props: {
menu: {
type: Array,
required: true
},
theme: {
type: String,
required: false,
default: 'dark'
},
mode: {
type: String,
required: false,
default: 'inline'
},
collapsed: {
type: Boolean,
required: false,
default: false
}
},
data () {
return {
openKeys: [],
selectedKeys: [],
cachedOpenKeys: []
}
},
computed: {
rootSubmenuKeys: (vm) => {
let keys = []
vm.menu.forEach(item => keys.push(item.path))
return keys
}
},
created () {
this.updateMenu()
},
watch: {
collapsed (val) {
if (val) {
this.cachedOpenKeys = this.openKeys
this.openKeys = []
} else {
this.openKeys = this.cachedOpenKeys
}
},
'$route': function () {
this.updateMenu()
}
},
methods: {
renderIcon: function (h, icon) {
return icon === 'none' || icon === undefined ? null
: h(Icon, { props: { type: icon !== undefined ? icon : '' } })
},
renderMenuItem: function (h, menu, pIndex, index) {
return h(Item, { key: menu.path ? menu.path : 'item_' + pIndex + '_' + index },
[
h(
'router-link',
{ attrs: { to: { name: menu.name } } },
[
this.renderIcon(h, menu.meta.icon),
h('span', [ menu.meta.title ])
]
)
]
)
},
renderSubMenu: function (h, menu, pIndex, index) {
const this2_ = this;
let subItem = [ h('span',
{ slot: 'title' },
[
this.renderIcon(h, menu.meta.icon),
h('span', [ menu.meta.title ])
]
) ]
let itemArr = []
let pIndex_ = pIndex + '_' + index
if (!menu.alwaysShow) {
menu.children.forEach(function (item, i) {
itemArr.push(this2_.renderItem(h, item, pIndex_, i))
})
}
return h(
SubMenu,
{ key: menu.path ? menu.path : 'submenu_' + pIndex + '_' + index },
subItem.concat(itemArr)
)
},
renderItem: function (h, menu, pIndex, index) {
if (!menu.hidden) {
return menu.children && !menu.alwaysShow ? this.renderSubMenu(h, menu, pIndex, index) : this.renderMenuItem(h, menu, pIndex, index)
}
},
renderMenu: function (h, menuTree) {
const this2_ = this
let menuArr = []
menuTree.forEach(function (menu, i) {
if (!menu.hidden) {
menuArr.push(this2_.renderItem(h, menu, '0', i))
}
})
return menuArr
},
onOpenChange (openKeys) {
const latestOpenKey = openKeys.find(key => this.openKeys.indexOf(key) === -1)
if (this.rootSubmenuKeys.indexOf(latestOpenKey) === -1) {
this.openKeys = openKeys
} else {
this.openKeys = latestOpenKey ? [ latestOpenKey ] : []
}
},
updateMenu () {
let routes = this.$route.matched.concat()
if (routes.length >= 4 && this.$route.meta.hidden) {
routes.pop()
this.selectedKeys = [ routes[2].path ]
} else {
this.selectedKeys = [ routes.pop().path ]
}
let openKeys = []
if (this.mode === 'inline') {
routes.forEach((item) => {
openKeys.push(item.path)
})
}
this.collapsed ? this.cachedOpenKeys = openKeys : this.openKeys = openKeys
}
},
render (h) {
return h(
Menu,
{
props: {
theme: this.$props.theme,
mode: this.$props.mode,
openKeys: this.openKeys,
selectedKeys: this.selectedKeys
},
on: {
openChange: this.onOpenChange,
select: (obj) => {
this.selectedKeys = obj.selectedKeys
this.$emit('select', obj)
}
}
}, this.renderMenu(h, this.menu)
)
}
}