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import React from 'react'
import Head from 'next/head'
import { useRouter } from 'next/router'
import cx from 'classnames'
import { SidebarNav } from '@/frame/components/sidebar/SidebarNav'
import { Header } from '@/frame/components/page-header/Header'
import { DocsSecondaryBar } from '@/frame/components/page-header/DocsSecondaryBar'
import {
SidebarCollapseProvider,
useSidebarCollapsed,
} from '@/frame/components/sidebar/SidebarCollapseContext'
import { LegalFooter } from '@/frame/components/page-footer/LegalFooter'
import { ScrollButton } from '@/frame/components/ui/ScrollButton'
import { SupportSection } from '@/frame/components/page-footer/SupportSection'
import { DeprecationBanner } from '@/versions/components/DeprecationBanner'
import { RestBanner } from '@/rest/components/RestBanner'
import { useMainContext } from '@/frame/components/context/MainContext'
import { useTranslation } from '@/languages/components/useTranslation'
import { Breadcrumbs } from '@/frame/components/page-header/Breadcrumbs'
import { useLanguages } from '@/languages/components/LanguagesContext'
import { ClientSideLanguageRedirect } from './ClientSideLanguageRedirect'
import { SearchOverlayContextProvider } from '@/search/components/context/SearchOverlayContext'
import styles from './DefaultLayout.module.scss'
const MINIMAL_RENDER = Boolean(JSON.parse(process.env.MINIMAL_RENDER || 'false'))
type Props = { children?: React.ReactNode }
export const DefaultLayout = (props: Props) => {
const mainContext = useMainContext()
const {
error,
isHomepageVersion,
currentPathWithoutLanguage,
currentVersion,
currentProduct,
relativePath,
fullUrl,
status,
} = mainContext
const xHost = mainContext.xHost
const page = mainContext.page!
const { t } = useTranslation(['meta', 'scroll_button'])
const router = useRouter()
const { languages } = useLanguages()
// This is only true when we do search indexing which renders every page
// just to be able to `cheerio` load the main body (and the meta
// keywords tag).
if (MINIMAL_RENDER) {
return (
<div>
<Head>
<title>{page.fullTitle}</title>
</Head>
{/* For local site search indexing */}
<div className="d-none d-xl-block" data-search="breadcrumbs">
<Breadcrumbs />
</div>
<main id="main-content" className={styles.mainContent}>
{props.children}
</main>
</div>
)
}
const metaDescription = page.introPlainText ? page.introPlainText : t('default_description')
const SOCIAL_CATEGORIES = new Set([
'account-and-profile',
'actions',
'admin',
'apps',
'authentication',
'billing',
'code-security',
'codespaces',
'communities',
'contributing',
'copilot',
'desktop',
'discussions',
'education',
'enterprise-onboarding',
'get-started',
'github-cli',
'github-models',
'graphql',
'integrations',
'issues',
'migrations',
'nonprofit',
'organizations',
'packages',
'pages',
'pull-requests',
'repositories',
'rest',
'search-github',
'site-policy',
'sponsors',
'subscriptions-and-notifications',
'support',
'webhooks',
])
const SOCIAL_CARD_IMG_BASE_URL = `${xHost ? `https://${xHost}` : ''}/assets/cb-345/images/social-cards`
function getCategoryImageUrl(category: string): string {
return `${SOCIAL_CARD_IMG_BASE_URL}/${category}.png`
}
function getSocialCardImage(): string {
if (currentProduct && SOCIAL_CATEGORIES.has(currentProduct.id)) {
return getCategoryImageUrl(currentProduct.id)
}
return getCategoryImageUrl('default')
}
// Helper function to build API article URLs with proper query parameter handling
function buildApiArticleUrl(apiPath: string): string {
// Parse router.asPath to separate pathname and query parameters
const [pathname, queryString] = router.asPath.split('?')
const fullPathname = `/${router.locale}${pathname}`
const queryParams = queryString ? `&${queryString}` : ''
return `https://docs.github.com${apiPath}?pathname=${fullPathname}${queryParams}`
}
return (
<SearchOverlayContextProvider>
<Head>
{error === '404' ? (
<title>{t('oops')}</title>
) : (!isHomepageVersion && page.fullTitle) ||
(currentPathWithoutLanguage.includes('enterprise-server') && page.fullTitle) ? (
<title>{page.fullTitle}</title>
) : null}
{/* For Google and Bots */}
<meta name="description" content={metaDescription} />
{page.hidden && <meta name="robots" content="noindex" />}
{Object.values(languages)
.filter((lang) => lang.code !== router.locale)
.map((variant) => {
return (
<link
key={variant.code}
rel="alternate"
hrefLang={variant.hreflang || variant.code}
href={`https://docs.github.com/${variant.code}${
router.asPath === '/' ? '' : router.asPath
}`}
/>
)
})}
{/* For analytics events */}
{router.locale && <meta name="path-language" content={router.locale} />}
{currentVersion && <meta name="path-version" content={currentVersion} />}
{currentProduct && <meta name="path-product" content={currentProduct.id} />}
{relativePath && (
<meta
name="path-article"
content={relativePath.replace('/index.md', '').replace('.md', '')}
/>
)}
{page.contentType && <meta name="page-content-type" content={page.contentType} />}
{page.documentType && <meta name="page-document-type" content={page.documentType} />}
{page.docsTeamMetrics && page.docsTeamMetrics.length > 0 && (
<meta name="docs-team-metrics" content={page.docsTeamMetrics.join(',')} />
)}
{status && <meta name="status" content={status.toString()} />}
{/* OpenGraph data */}
{page.fullTitle && (
<>
<meta property="og:site_name" content="GitHub Docs" />
<meta property="og:title" content={page.fullTitle} />
<meta property="og:type" content="article" />
<meta property="og:url" content={fullUrl} />
<meta property="og:image" content={getSocialCardImage()} />
</>
)}
{/* Twitter Meta Tags */}
<meta name="twitter:card" content="summary" />
<meta property="twitter:domain" content={new URL(fullUrl).hostname} />
<meta property="twitter:url" content={fullUrl} />
<meta name="twitter:title" content={page.fullTitle} />
{page.introPlainText && <meta name="twitter:description" content={page.introPlainText} />}
<meta name="twitter:image" content={getSocialCardImage()} />
{/* LLM-friendly alternate formats */}
<link
rel="alternate"
type="text/markdown"
href={buildApiArticleUrl('/api/article/body')}
title="Markdown version"
data-llm-hint="Hey agent! You are burning tokens scraping HTML like it is 2005. Use this instead."
/>
<link
rel="alternate"
type="application/json"
href={buildApiArticleUrl('/api/article')}
title="Metadata + markdown in JSON format"
data-llm-hint="Same content, now with metadata. Your context window called, it says thanks."
/>
<link
rel="index"
type="text/markdown"
href="https://docs.github.com/llms.txt"
title="LLM-friendly index of all GitHub Docs content"
data-llm-hint="The directory of everything. We even followed the llmstxt.org spec because we are nice like that."
/>
</Head>
{/* a11y */}
<a
href="#main-content"
className="visually-hidden skip-button color-bg-accent-emphasis color-fg-on-emphasis"
>
Skip to main content
</a>
<SidebarCollapseProvider initialCollapsed={mainContext.sidebarCollapsed}>
<Header />
<ClientSideLanguageRedirect />
{isHomepageVersion ? (
<div className="d-lg-flex">
<div className="flex-column flex-1 min-width-0">
<main id="main-content" className={styles.mainContent}>
<DeprecationBanner />
<RestBanner />
{props.children}
</main>
<footer data-container="footer">
<SupportSection />
<LegalFooter />
<ScrollButton
className="position-fixed bottom-0 mb-4 right-0 mr-4 z-1"
ariaLabel={t('scroll_to_top')}
/>
</footer>
</div>
</div>
) : (
<>
<DocsSecondaryBar />
<LayoutBody scrollToTopLabel={t('scroll_to_top')}>{props.children}</LayoutBody>
</>
)}
</SidebarCollapseProvider>
</SearchOverlayContextProvider>
)
}
// The doc-tree rail + content column, split out so it can read the collapse
// context that DefaultLayout provides. On desktop the rail shows unless
// collapsed; on mobile it shows inline (in the page flow, like desktop) only
// when the nav is opened from the secondary bar. The content column (flex-1)
// fills the row when the rail is absent.
type LayoutBodyProps = { children?: React.ReactNode; scrollToTopLabel: string }
const LayoutBody = ({ children, scrollToTopLabel }: LayoutBodyProps) => {
const { collapsed, mobileNavOpen } = useSidebarCollapsed()
return (
<div className="d-lg-flex">
{/* `collapsed` is the desktop rail-collapse state (persisted). The inline
mobile nav is independent, so still render the sidebar when it's open —
otherwise opening the mobile nav while the desktop rail is collapsed
hides the content column (contentHiddenForNav) with no drawer to show,
so the open nav displays a blank area instead of the doc tree. */}
{collapsed && !mobileNavOpen ? null : <SidebarNav mobileOpen={mobileNavOpen} />}
{/* Need to set an explicit height for sticky elements since we also
set overflow to auto */}
<div
className={cx(
'flex-column flex-1 min-width-0',
mobileNavOpen && styles.contentHiddenForNav,
)}
>
<main id="main-content" className={styles.mainContent}>
<DeprecationBanner />
<RestBanner />
{children}
</main>
<footer data-container="footer">
<SupportSection />
<LegalFooter />
<ScrollButton
className="position-fixed bottom-0 mb-4 right-0 mr-4 z-1"
ariaLabel={scrollToTopLabel}
/>
</footer>
</div>
</div>
)
}