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import { mapState } from 'vuex'
import menuMixin from '../mixin/menu'
import { elMenuItem, elSubmenu } from '../libs/util.menu'
import BScroll from 'better-scroll'
export default {
name: 'd2-layout-header-aside-menu-side',
mixins: [
menuMixin
],
render (createElement) {
return createElement('div', { attrs: { class: 'd2-layout-header-aside-menu-side' } }, [
createElement('el-menu', {
props: { collapse: this.asideCollapse, uniqueOpened: true, defaultActive: this.active },
ref: 'menu',
on: { select: this.handleMenuSelect }
}, this.aside.map(menu => (menu.children === undefined ? elMenuItem : elSubmenu).call(this, createElement, menu))),
...this.aside.length === 0 && !this.asideCollapse ? [
createElement('div', { attrs: { class: 'd2-layout-header-aside-menu-empty', flex: 'dir:top main:center cross:center' } }, [
createElement('d2-icon', { props: { name: 'inbox' } }),
createElement('span', {}, '没有侧栏菜单')
])
] : []
])
},
data () {
return {
active: '',
asideHeight: 300,
BS: null
}
},
computed: {
...mapState('d2admin/menu', [
'aside',
'asideCollapse'
])
},
watch: {
// 折叠和展开菜单的时候销毁 better scroll
asideCollapse (val) {
this.scrollDestroy()
setTimeout(() => {
this.scrollInit()
}, 500)
},
// 监听路由 控制侧边栏激活状态
'$route.fullPath': {
handler (value) {
this.active = value
},
immediate: true
}
},
mounted () {
this.scrollInit()
},
beforeDestroy () {
this.scrollDestroy()
},
methods: {
scrollInit () {
this.BS = new BScroll(this.$el, {
mouseWheel: true,
click: true
// 如果你愿意可以打开显示滚动条
// scrollbar: {
// fade: true,
// interactive: false
// }
})
},
scrollDestroy () {
// https://github.com/d2-projects/d2-admin/issues/75
try {
this.BS.destroy()
} catch (e) {
delete this.BS
this.BS = null
}
}
}
}