276 lines
10 KiB
JavaScript
276 lines
10 KiB
JavaScript
import { useCallback, useEffect, useState } from 'react'
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import Link from 'next/link'
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import { useRouter } from 'next/router'
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import clsx from 'clsx'
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import { Hero } from '@/components/Hero'
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import { Logo } from '@/components/Logo'
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import { MobileNavigation } from '@/components/MobileNavigation'
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import { Navigation } from '@/components/Navigation'
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import { Prose } from '@/components/Prose'
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import { Search } from '@/components/Search'
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import { ThemeSelector } from '@/components/ThemeSelector'
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function Header({ navigation }) {
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let [isScrolled, setIsScrolled] = useState(false)
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useEffect(() => {
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function onScroll() {
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setIsScrolled(window.scrollY > 0)
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}
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onScroll()
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window.addEventListener('scroll', onScroll)
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return () => {
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window.removeEventListener('scroll', onScroll)
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}
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}, [])
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return (
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<header
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className={clsx(
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'sticky top-0 z-50 flex flex-wrap items-center justify-between bg-white px-4 py-5 shadow-md shadow-slate-900/5 transition duration-500 dark:shadow-none sm:px-6 lg:px-8',
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{
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'dark:bg-slate-900/95 dark:backdrop-blur dark:[@supports(backdrop-filter:blur(0))]:bg-slate-900/75':
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isScrolled,
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'dark:bg-transparent': !isScrolled,
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}
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)}
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>
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<div className="mr-6 lg:hidden">
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<MobileNavigation navigation={navigation} />
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</div>
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<div className="relative flex flex-grow basis-0 items-center">
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<Link href="/">
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<a className="block w-10 overflow-hidden lg:w-auto">
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<span className="sr-only">Home page</span>
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<Logo />
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</a>
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</Link>
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</div>
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<div className="-my-5 mr-6 sm:mr-8 md:mr-0">
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<Search />
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</div>
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<div className="relative flex basis-0 justify-end space-x-6 sm:space-x-8 md:flex-grow">
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<ThemeSelector className="relative z-10" />
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<Link href="https://github.com/coral-xyz/anchor">
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<a className="group">
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<span className="sr-only">GitHub</span>
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<svg
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aria-hidden="true"
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viewBox="0 0 16 16"
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className="h-6 w-6 fill-slate-400 group-hover:fill-slate-500 dark:group-hover:fill-slate-300"
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>
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<path d="M8 0C3.58 0 0 3.58 0 8C0 11.54 2.29 14.53 5.47 15.59C5.87 15.66 6.02 15.42 6.02 15.21C6.02 15.02 6.01 14.39 6.01 13.72C4 14.09 3.48 13.23 3.32 12.78C3.23 12.55 2.84 11.84 2.5 11.65C2.22 11.5 1.82 11.13 2.49 11.12C3.12 11.11 3.57 11.7 3.72 11.94C4.44 13.15 5.59 12.81 6.05 12.6C6.12 12.08 6.33 11.73 6.56 11.53C4.78 11.33 2.92 10.64 2.92 7.58C2.92 6.71 3.23 5.99 3.74 5.43C3.66 5.23 3.38 4.41 3.82 3.31C3.82 3.31 4.49 3.1 6.02 4.13C6.66 3.95 7.34 3.86 8.02 3.86C8.7 3.86 9.38 3.95 10.02 4.13C11.55 3.09 12.22 3.31 12.22 3.31C12.66 4.41 12.38 5.23 12.3 5.43C12.81 5.99 13.12 6.7 13.12 7.58C13.12 10.65 11.25 11.33 9.47 11.53C9.76 11.78 10.01 12.26 10.01 13.01C10.01 14.08 10 14.94 10 15.21C10 15.42 10.15 15.67 10.55 15.59C13.71 14.53 16 11.53 16 8C16 3.58 12.42 0 8 0Z" />
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</svg>
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</a>
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</Link>
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</div>
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</header>
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)
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}
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export function Layout({ children, title, navigation, tableOfContents }) {
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let router = useRouter()
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let isHomePage = router.pathname === '/'
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let allLinks = navigation.flatMap((section) => section.links)
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let linkIndex = allLinks.findIndex((link) => link.href === router.pathname)
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let previousPage = allLinks[linkIndex - 1]
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let nextPage = allLinks[linkIndex + 1]
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let section = navigation.find((section) =>
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section.links.find((link) => link.href === router.pathname)
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)
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let currentSection = useTableOfContents(tableOfContents)
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function isActive(section) {
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if (section.id === currentSection) {
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return true
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}
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if (!section.children) {
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return false
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}
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return section.children.findIndex(isActive) > -1
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}
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return (
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<>
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<Header navigation={navigation} />
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{isHomePage && <Hero />}
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<div className="relative mx-auto flex max-w-8xl justify-center sm:px-2 lg:px-8 xl:px-12">
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<div className="hidden lg:relative lg:block lg:flex-none">
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<div className="absolute inset-y-0 right-0 w-[50vw] bg-slate-50 dark:hidden" />
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<div className="sticky top-[4.5rem] -ml-0.5 h-[calc(100vh-4.5rem)] overflow-y-auto py-16 pl-0.5">
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<div className="absolute top-16 bottom-0 right-0 hidden h-12 w-px bg-gradient-to-t from-slate-800 dark:block" />
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<div className="absolute top-28 bottom-0 right-0 hidden w-px bg-slate-800 dark:block" />
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<Navigation
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navigation={navigation}
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className="w-64 pr-8 xl:w-72 xl:pr-16"
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/>
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</div>
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</div>
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<div className="min-w-0 max-w-2xl flex-auto px-4 py-16 lg:max-w-none lg:pr-0 lg:pl-8 xl:px-16">
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<article>
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{(title || section) && (
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<header className="mb-9 space-y-1">
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{section && (
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<p className="font-display text-sm font-medium text-sky-500">
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{section.title}
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</p>
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)}
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{title && (
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<h1 className="font-display text-3xl tracking-tight text-slate-900 dark:text-white">
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{title}
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</h1>
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)}
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</header>
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)}
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<Prose>{children}</Prose>
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</article>
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<dl className="mt-12 flex border-t border-slate-200 pt-6 dark:border-slate-800">
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{previousPage && (
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<div>
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<dt className="font-display text-sm font-medium text-slate-900 dark:text-white">
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Previous
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</dt>
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<dd className="mt-1">
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<Link href={previousPage.href}>
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<a className="text-base font-semibold text-slate-500 hover:text-slate-600 dark:text-slate-400 dark:hover:text-slate-300">
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← {previousPage.title}
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</a>
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</Link>
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</dd>
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</div>
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)}
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{nextPage && (
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<div className="ml-auto text-right">
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<dt className="font-display text-sm font-medium text-slate-900 dark:text-white">
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Next
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</dt>
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<dd className="mt-1">
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<Link href={nextPage.href}>
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<a className="text-base font-semibold text-slate-500 hover:text-slate-600 dark:text-slate-400 dark:hover:text-slate-300">
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{nextPage.title} →
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</a>
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</Link>
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</dd>
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</div>
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)}
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</dl>
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</div>
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<div className="hidden xl:sticky xl:top-[4.5rem] xl:-mr-6 xl:block xl:h-[calc(100vh-4.5rem)] xl:flex-none xl:overflow-y-auto xl:py-16 xl:pr-6">
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<nav aria-labelledby="on-this-page-title" className="w-56">
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{tableOfContents.length > 0 && (
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<>
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<h2
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id="on-this-page-title"
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className="font-display text-sm font-medium text-slate-900 dark:text-white"
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>
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On this page
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</h2>
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<ul className="mt-4 space-y-3 text-sm">
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{tableOfContents.map((section) => (
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<li key={section.id}>
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<h3>
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<Link href={`#${section.id}`}>
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<a
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className={clsx(
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isActive(section)
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? 'text-sky-500'
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: 'font-normal text-slate-500 hover:text-slate-700 dark:text-slate-400 dark:hover:text-slate-300'
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)}
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>
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{section.title}
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</a>
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</Link>
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</h3>
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{section.children.length > 0 && (
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<ul className="mt-2 space-y-3 pl-5 text-slate-500 dark:text-slate-400">
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{section.children.map((subSection) => (
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<li key={subSection.id}>
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<Link href={`#${subSection.id}`}>
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<a
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className={
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isActive(subSection)
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? 'text-sky-500'
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: 'hover:text-slate-600 dark:hover:text-slate-300'
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}
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>
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{subSection.title}
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</a>
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</Link>
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</li>
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))}
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</ul>
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)}
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</li>
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))}
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</ul>
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</>
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)}
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</nav>
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</div>
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</div>
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</>
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)
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}
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function useTableOfContents(tableOfContents) {
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let [currentSection, setCurrentSection] = useState(tableOfContents[0]?.id)
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let getHeadings = useCallback(() => {
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function* traverse(node) {
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if (Array.isArray(node)) {
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for (let child of node) {
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yield* traverse(child)
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}
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} else {
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let el = document.getElementById(node.id)
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if (!el) return
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let style = window.getComputedStyle(el)
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let scrollMt = parseFloat(style.scrollMarginTop)
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let top = window.scrollY + el.getBoundingClientRect().top - scrollMt
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yield { id: node.id, top }
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for (let child of node.children ?? []) {
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yield* traverse(child)
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}
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}
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}
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return Array.from(traverse(tableOfContents))
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}, [tableOfContents])
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useEffect(() => {
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let headings = getHeadings()
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if (tableOfContents.length === 0 || headings.length === 0) return
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function onScroll() {
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let sortedHeadings = headings.concat([]).sort((a, b) => a.top - b.top)
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let top = window.pageYOffset
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let current = sortedHeadings[0].id
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for (let i = 0; i < sortedHeadings.length; i++) {
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if (top >= sortedHeadings[i].top) {
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current = sortedHeadings[i].id
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}
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}
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setCurrentSection(current)
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}
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window.addEventListener('scroll', onScroll, {
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capture: true,
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passive: true,
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})
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onScroll()
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return () => {
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window.removeEventListener('scroll', onScroll, {
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capture: true,
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passive: true,
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})
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}
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}, [getHeadings, tableOfContents])
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return currentSection
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}
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