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docs/components/article/ArticlePage.tsx
2022-02-28 18:30:54 +00:00

265 lines
10 KiB
TypeScript

import { useState, useEffect, ReactNode } from 'react'
import { useRouter } from 'next/router'
import dynamic from 'next/dynamic'
import cx from 'classnames'
import { ActionList, Heading } from '@primer/react'
import { ZapIcon, InfoIcon, ShieldLockIcon } from '@primer/octicons-react'
import { Callout } from 'components/ui/Callout'
import { Link } from 'components/Link'
import { DefaultLayout } from 'components/DefaultLayout'
import { ArticleTitle } from 'components/article/ArticleTitle'
import { MiniTocItem, useArticleContext } from 'components/context/ArticleContext'
import { useTranslation } from 'components/hooks/useTranslation'
import { LearningTrackNav } from './LearningTrackNav'
import { MarkdownContent } from 'components/ui/MarkdownContent'
import { Lead } from 'components/ui/Lead'
import { ArticleGridLayout } from './ArticleGridLayout'
import { PlatformPicker } from 'components/article/PlatformPicker'
import { ToolPicker } from 'components/article/ToolPicker'
const ClientSideRedirectExceptions = dynamic(() => import('./ClientsideRedirectExceptions'), {
ssr: false,
})
const ClientSideHighlightJS = dynamic(() => import('./ClientSideHighlightJS'), { ssr: false })
// Mapping of a "normal" article to it's interactive counterpart
const interactiveAlternatives: Record<string, { href: string }> = {
'/actions/automating-builds-and-tests/building-and-testing-nodejs': {
href: '/actions/automating-builds-and-tests/building-and-testing-nodejs-or-python?langId=nodejs',
},
'/actions/automating-builds-and-tests/building-and-testing-python': {
href: '/actions/automating-builds-and-tests/building-and-testing-nodejs-or-python?langId=python',
},
'/codespaces/setting-up-your-project-for-codespaces/setting-up-your-nodejs-project-for-codespaces':
{
href: '/codespaces/setting-up-your-project-for-codespaces/setting-up-your-project-for-codespaces?langId=nodejs',
},
'/codespaces/setting-up-your-project-for-codespaces/setting-up-your-dotnet-project-for-codespaces':
{
href: '/codespaces/setting-up-your-project-for-codespaces/setting-up-your-project-for-codespaces?langId=dotnet',
},
'/codespaces/setting-up-your-project-for-codespaces/setting-up-your-java-project-for-codespaces':
{
href: '/codespaces/setting-up-your-project-for-codespaces/setting-up-your-project-for-codespaces?langId=java',
},
'/codespaces/setting-up-your-project-for-codespaces/setting-up-your-python-project-for-codespaces':
{
href: '/codespaces/setting-up-your-project-for-codespaces/setting-up-your-project-for-codespaces?langId=py',
},
}
export type StructuredContentT = {
structuredContent?: ReactNode
}
export const ArticlePage = ({ structuredContent }: StructuredContentT) => {
const { asPath } = useRouter()
const {
title,
intro,
effectiveDate,
renderedPage,
contributor,
permissions,
includesPlatformSpecificContent,
includesToolSpecificContent,
product,
miniTocItems,
currentLearningTrack,
} = useArticleContext()
const renderedContent = structuredContent || renderedPage
const { t } = useTranslation('pages')
const currentPath = asPath.split('?')[0]
const renderTocItem = (item: MiniTocItem) => {
return (
<ActionList.Item
as="li"
key={item.contents}
className={item.platform}
sx={{ listStyle: 'none', padding: '2px' }}
>
<div className={cx('lh-condensed d-block width-full')}>
<div dangerouslySetInnerHTML={{ __html: item.contents }} />
{item.items && item.items.length > 0 ? (
<ul className="ml-3">{item.items.map(renderTocItem)}</ul>
) : null}
</div>
</ActionList.Item>
)
}
// We have some one-off redirects for rest api docs
// currently those are limited to the repos page, but
// that will grow soon as we restructure the rest api docs.
// This is a workaround to updating the hardcoded links
// directly in the REST API code in a separate repo, which
// requires many file changes and teams to sign off.
// While the organization is turbulent, we can do this.
// Once it's more settled, we can refactor the rest api code
// to leverage the OpenAPI urls rather than hardcoded urls.
// The code below determines if we should bother loading this redirecting
// component at all.
// The reason this isn't done at the server-level is because there you
// can't possibly access the URL hash. That's only known in client-side
// code.
const [loadClientsideRedirectExceptions, setLoadClientsideRedirectExceptions] = useState(false)
useEffect(() => {
const { hash, pathname } = window.location
// Today, Jan 2022, it's known explicitly what the pathname.
// In the future there might be more.
// Hopefully, we can some day delete all of this and no longer
// be dependent on the URL hash to do the redirect.
if (
hash &&
(pathname.endsWith('/rest/reference/repos') ||
pathname.endsWith('/rest/reference/enterprise-admin'))
) {
setLoadClientsideRedirectExceptions(true)
}
}, [])
// If the page contains `[data-highlight]` blocks, these pages need
// syntax highlighting. But not every page needs it, so it's conditionally
// lazy-loaded on the client.
const [lazyLoadHighlightJS, setLazyLoadHighlightJS] = useState(false)
useEffect(() => {
// It doesn't need to use querySelector because all we care about is if
// there is greater than zero of these in the DOM.
// Note! This "core selector", which determines whether to bother
// or not, needs to match what's used inside ClientSideHighlightJS.tsx
if (document.querySelector('[data-highlight]')) {
setLazyLoadHighlightJS(true)
}
// Important to depend on the current path because the first page you
// load, before any client-side navigation, might not need it, but the
// consecutive one does.
}, [asPath])
// Scrollable code blocks in our REST API docs and elsewhere aren't accessible
// via keyboard navigation without setting tabindex="0". But we don't want to set
// this attribute on every `<pre>` code block, only the ones where there are scroll
// bars because the content isn't all visible.
useEffect(() => {
const codeBlocks = document.querySelectorAll<HTMLPreElement>('pre')
codeBlocks.forEach((codeBlock) => {
if (
codeBlock.scrollWidth > codeBlock.clientWidth ||
codeBlock.scrollHeight > codeBlock.clientHeight
) {
codeBlock.setAttribute('tabindex', '0')
}
})
}, [])
return (
<DefaultLayout>
{/* Doesn't matter *where* this is included because it will
never render anything. It always just return null. */}
{loadClientsideRedirectExceptions && <ClientSideRedirectExceptions />}
{/* Doesn't matter *where* this is included because it will
never render anything. It always just return null. */}
{lazyLoadHighlightJS && <ClientSideHighlightJS />}
<div className="container-xl px-3 px-md-6 my-4">
<ArticleGridLayout
topper={<ArticleTitle>{title}</ArticleTitle>}
intro={
<>
{contributor && (
<Callout variant="info" className="mb-3">
<p>
<span className="mr-2">
<InfoIcon />
</span>
{t('contributor_callout')} <a href={contributor.URL}>{contributor.name}</a>.
</p>
</Callout>
)}
{intro && (
<Lead data-testid="lead" data-search="lead">
{intro}
</Lead>
)}
{permissions && (
<div className="permissions-statement d-table">
<div className="d-table-cell pr-2">
<ShieldLockIcon size={16} />
</div>
<div className="d-table-cell" dangerouslySetInnerHTML={{ __html: permissions }} />
</div>
)}
{includesPlatformSpecificContent && <PlatformPicker variant="underlinenav" />}
{includesToolSpecificContent && <ToolPicker variant="underlinenav" />}
{product && (
<Callout
variant="success"
className="mb-4"
dangerouslySetInnerHTML={{ __html: product }}
/>
)}
</>
}
toc={
<>
{!!interactiveAlternatives[currentPath] && (
<div className="flash mb-3">
<ZapIcon className="mr-2" />
<Link href={interactiveAlternatives[currentPath].href}>
Try the new interactive article
</Link>
</div>
)}
{miniTocItems.length > 1 && (
<>
<Heading as="h2" id="in-this-article" className="mb-1" sx={{ fontSize: 1 }}>
<Link href="#in-this-article">{t('miniToc')}</Link>
</Heading>
<ActionList
key={title}
items={miniTocItems.map((items, i) => {
return {
key: title + i,
text: title,
renderItem: () => <ul>{renderTocItem(items)}</ul>,
}
})}
/>
</>
)}
</>
}
>
<div id="article-contents">
<MarkdownContent>{renderedContent}</MarkdownContent>
{effectiveDate && (
<div className="mt-4" id="effectiveDate">
Effective as of:{' '}
<time dateTime={new Date(effectiveDate).toISOString()}>
{new Date(effectiveDate).toDateString()}
</time>
</div>
)}
</div>
</ArticleGridLayout>
{currentLearningTrack?.trackName ? (
<div className="mt-4">
<LearningTrackNav track={currentLearningTrack} />
</div>
) : null}
</div>
</DefaultLayout>
)
}