snailRun
88 lines
1.8 KiB
Vue
Executable File
88 lines
1.8 KiB
Vue
Executable File
<template>
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<DropdownTransition>
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<ul class="toc-sidebar-links" v-if="items[0].children.length">
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<li v-for="(item, i) in items[0].children" :key="i">
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<PageSidebarTocLink :sidebarDepth="sidebarDepth" :item="item"/>
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</li>
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</ul>
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</DropdownTransition>
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</template>
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<script>
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import PageSidebarTocLink from '@theme/components/PageSidebarTocLink.vue'
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import DropdownTransition from '@theme/components/DropdownTransition.vue'
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import { isActive } from '../util'
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export default {
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name: 'PageSidebarToc',
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components: { PageSidebarTocLink, DropdownTransition },
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props: [
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'items',
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'depth', // depth of current sidebar links
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'sidebarDepth' // depth of headers to be extracted
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],
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data () {
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return {
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openGroupIndex: 0
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}
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},
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created () {
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this.refreshIndex()
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},
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watch: {
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'$route' () {
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this.refreshIndex()
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}
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},
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methods: {
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refreshIndex () {
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const index = resolveOpenGroupIndex(
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this.$route,
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this.items[0].children
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)
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if (index > -1) {
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this.openGroupIndex = index
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}
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},
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toggleGroup (index) {
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this.openGroupIndex = index === this.openGroupIndex ? -1 : index
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},
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isActive (page) {
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return isActive(this.$route, page.regularPath)
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}
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}
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}
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function resolveOpenGroupIndex (route, items) {
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for (let i = 0; i < items.length; i++) {
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const item = items[i]
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if (descendantIsActive(route, item)) {
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return i
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}
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}
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return -1
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}
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function descendantIsActive (route, item) {
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if (item.type === 'group') {
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return item.children.some(child => {
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if (child.type === 'group') {
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return descendantIsActive(route, child)
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} else {
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return child.type === 'page' && isActive(route, child.path)
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}
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})
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}
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return false
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}
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</script>
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