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162 changes: 162 additions & 0 deletions
162
packages/site/src/components/Navigation/TableOfContentsItems.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| import React, { useEffect } from 'react'; | ||
| import classNames from 'classnames'; | ||
| import * as Collapsible from '@radix-ui/react-collapsible'; | ||
| import type { Heading } from '@myst-theme/common'; | ||
| import { useBaseurl, useNavLinkProvider, useNavOpen, withBaseurl } from '@myst-theme/providers'; | ||
| import { useLocation, useNavigation } from '@remix-run/react'; | ||
| import { ChevronRightIcon } from '@heroicons/react/24/solid'; | ||
|
|
||
| type NestedHeading = Heading & { id: string; children: NestedHeading[] }; | ||
|
|
||
| function nestToc(toc: Heading[]): NestedHeading[] { | ||
| const items: NestedHeading[] = []; | ||
| const stack: (Omit<NestedHeading, 'level'> & { level: number })[] = []; | ||
|
|
||
| toc.forEach((tocItem, id) => { | ||
| const item = tocItem as NestedHeading; | ||
| item.children = []; | ||
| item.id = String(id); | ||
| if (item.level === 'index') { | ||
| while (stack.length) stack.pop(); | ||
| items.push(item); | ||
| return; | ||
| } | ||
| while (stack.length && stack[stack.length - 1].level >= item.level) { | ||
| stack.pop(); | ||
| } | ||
| const top = stack[stack.length - 1]; | ||
| if (top) { | ||
| top.children.push(item); | ||
| } else { | ||
| items.push(item); | ||
| } | ||
| stack.push(item as any); | ||
| }); | ||
| return items; | ||
| } | ||
|
|
||
| function childrenOpen(headings: NestedHeading[], pathname: string): string[] { | ||
| return headings | ||
| .map((heading) => { | ||
| if (heading.path === pathname) return [heading.id]; | ||
| const open = childrenOpen(heading.children, pathname); | ||
| if (open.length === 0) return []; | ||
| return [heading.id, ...open]; | ||
| }) | ||
| .flat(); | ||
| } | ||
|
|
||
| export const Toc = ({ headings }: { headings: Heading[] }) => { | ||
| const nested = nestToc(headings); | ||
| return ( | ||
| <div className="w-full px-1 dark:text-white"> | ||
| {nested.map((item) => ( | ||
| <NestedToc heading={item} key={item.id} /> | ||
| ))} | ||
| </div> | ||
| ); | ||
| }; | ||
|
|
||
| function LinkItem({ | ||
| className, | ||
| heading, | ||
| onClick, | ||
| }: { | ||
| className?: string; | ||
| heading: NestedHeading; | ||
| onClick?: () => void; | ||
| }) { | ||
| const NavLink = useNavLinkProvider(); | ||
| const baseurl = useBaseurl(); | ||
| const [, setOpen] = useNavOpen(); | ||
| if (!heading.path) { | ||
| return ( | ||
| <div | ||
| title={heading.title} | ||
| className={classNames('block break-words rounded', className)} | ||
| onClick={() => { | ||
| onClick?.(); | ||
| }} | ||
| > | ||
| {heading.short_title || heading.title} | ||
| </div> | ||
| ); | ||
| } | ||
| return ( | ||
| <NavLink | ||
| prefetch="intent" | ||
| title={heading.title} | ||
| className={classNames( | ||
| 'block break-words focus:outline outline-blue-200 outline-2 rounded', | ||
| className, | ||
| )} | ||
| to={withBaseurl(heading.path, baseurl)} | ||
| onClick={() => { | ||
| onClick?.(); | ||
| setOpen(false); | ||
| }} | ||
| > | ||
| {heading.short_title || heading.title} | ||
| </NavLink> | ||
| ); | ||
| } | ||
|
|
||
| const NestedToc = ({ heading }: { heading: NestedHeading }) => { | ||
| const { pathname } = useLocation(); | ||
| const startOpen = childrenOpen([heading], pathname).includes(heading.id); | ||
| const nav = useNavigation(); | ||
| nav.state; | ||
| const [open, setOpen] = React.useState(startOpen); | ||
| useEffect(() => { | ||
| if (nav.state === 'idle') setOpen(startOpen); | ||
| }, [nav.state]); | ||
| const exact = pathname === heading.path; | ||
| if (!heading.children || heading.children.length === 0) { | ||
| return ( | ||
| <LinkItem | ||
| className={classNames('p-2 my-1 rounded-lg', { | ||
| 'bg-blue-300/30': exact, | ||
| 'hover:bg-slate-300/30': !exact, | ||
| 'font-bold': heading.level === 'index', | ||
| })} | ||
| heading={heading} | ||
| /> | ||
| ); | ||
| } | ||
| return ( | ||
| <Collapsible.Root className="w-full" open={open} onOpenChange={setOpen}> | ||
| <div | ||
| className={classNames( | ||
| 'flex flex-row w-full gap-2 px-2 my-1 text-left rounded-lg outline-none', | ||
| { | ||
| 'bg-blue-300/30': exact, | ||
| 'hover:bg-slate-300/30': !exact, | ||
| }, | ||
| )} | ||
| > | ||
| <LinkItem | ||
| className={classNames('py-2 grow', { | ||
| 'font-semibold text-blue-800 dark:text-blue-200': startOpen, | ||
| 'cursor-pointer': !heading.path, | ||
| })} | ||
| heading={heading} | ||
| onClick={() => setOpen(heading.path ? true : !open)} | ||
| /> | ||
| <Collapsible.Trigger asChild> | ||
| <button className="self-center flex-none rounded-md group hover:bg-slate-300/30 focus:outline outline-blue-200 outline-2"> | ||
| <ChevronRightIcon | ||
| className="transition-transform duration-300 group-data-[state=open]:rotate-90 text-text-slate-700 dark:text-slate-100" | ||
| height="1.5rem" | ||
| width="1.5rem" | ||
| /> | ||
| </button> | ||
| </Collapsible.Trigger> | ||
| </div> | ||
| <Collapsible.Content className="pl-3 pr-[2px] collapsible-content"> | ||
| {heading.children.map((item) => ( | ||
| <NestedToc heading={item} key={item.id} /> | ||
| ))} | ||
| </Collapsible.Content> | ||
| </Collapsible.Root> | ||
| ); | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -13,3 +13,4 @@ | |
| @import './grid.css'; | ||
| @import './hover.css'; | ||
| @import './proof.css'; | ||
| @import './toc.css'; | ||
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