|
| 1 | +import React from 'react'; |
| 2 | +import clsx from 'clsx'; |
| 3 | +import { ThemeClassNames } from '@docusaurus/theme-common'; |
| 4 | +import { |
| 5 | + useSidebarBreadcrumbs, |
| 6 | + useHomePageRoute, |
| 7 | +} from '@docusaurus/theme-common/internal'; |
| 8 | +import Link from '@docusaurus/Link'; |
| 9 | +import useBaseUrl from '@docusaurus/useBaseUrl'; |
| 10 | +import { translate } from '@docusaurus/Translate'; |
| 11 | +import IconHome from '@theme/Icon/Home'; |
| 12 | +import styles from './styles.module.css'; |
| 13 | +// TODO move to design system folder |
| 14 | +function BreadcrumbsItemLink({ children, href, isLast }) { |
| 15 | + const className = 'breadcrumbs__link'; |
| 16 | + if (isLast) { |
| 17 | + return ( |
| 18 | + <span className={className} itemProp="name"> |
| 19 | + {children} |
| 20 | + </span> |
| 21 | + ); |
| 22 | + } |
| 23 | + return href ? ( |
| 24 | + <Link className={className} href={href} itemProp="item"> |
| 25 | + <span itemProp="name">{children}</span> |
| 26 | + </Link> |
| 27 | + ) : ( |
| 28 | + // TODO Google search console doesn't like breadcrumb items without href. |
| 29 | + // The schema doesn't seem to require `id` for each `item`, although Google |
| 30 | + // insist to infer one, even if it's invalid. Removing `itemProp="item |
| 31 | + // name"` for now, since I don't know how to properly fix it. |
| 32 | + // See https://github.com/facebook/docusaurus/issues/7241 |
| 33 | + <span className={className}>{children}</span> |
| 34 | + ); |
| 35 | +} |
| 36 | +// TODO move to design system folder |
| 37 | +function BreadcrumbsItem({ children, active, index, addMicrodata }) { |
| 38 | + return ( |
| 39 | + <li |
| 40 | + {...(addMicrodata && { |
| 41 | + itemScope: true, |
| 42 | + itemProp: 'itemListElement', |
| 43 | + itemType: 'https://schema.org/ListItem', |
| 44 | + })} |
| 45 | + className={clsx('breadcrumbs__item', { |
| 46 | + 'breadcrumbs__item--active': active, |
| 47 | + })}> |
| 48 | + {children} |
| 49 | + <meta itemProp="position" content={String(index + 1)} /> |
| 50 | + </li> |
| 51 | + ); |
| 52 | +} |
| 53 | +function HomeBreadcrumbItem() { |
| 54 | + const homeHref = useBaseUrl('/'); |
| 55 | + return ( |
| 56 | + <li className={clsx( |
| 57 | + "breadcrumbs__item" |
| 58 | + )}> |
| 59 | + <Link |
| 60 | + aria-label={translate({ |
| 61 | + id: 'theme.docs.breadcrumbs.home', |
| 62 | + message: 'Home page', |
| 63 | + description: 'The ARIA label for the home page in the breadcrumbs', |
| 64 | + })} |
| 65 | + className={clsx('breadcrumbs__link', styles.breadcrumbsItemLink)} |
| 66 | + href={homeHref}> |
| 67 | + <IconHome className={styles.breadcrumbHomeIcon} /> |
| 68 | + </Link> |
| 69 | + </li> |
| 70 | + ); |
| 71 | +} |
| 72 | +export default function DocBreadcrumbs() { |
| 73 | + const breadcrumbs = useSidebarBreadcrumbs(); |
| 74 | + const homePageRoute = useHomePageRoute(); |
| 75 | + if (!breadcrumbs) { |
| 76 | + return null; |
| 77 | + } |
| 78 | + return ( |
| 79 | + <nav |
| 80 | + className={clsx( |
| 81 | + ThemeClassNames.docs.docBreadcrumbs, |
| 82 | + 'pt-4' |
| 83 | + )} |
| 84 | + aria-label={translate({ |
| 85 | + id: 'theme.docs.breadcrumbs.navAriaLabel', |
| 86 | + message: 'Breadcrumbs', |
| 87 | + description: 'The ARIA label for the breadcrumbs', |
| 88 | + })}> |
| 89 | + <ul |
| 90 | + className="breadcrumbs" |
| 91 | + itemScope |
| 92 | + itemType="https://schema.org/BreadcrumbList"> |
| 93 | + {homePageRoute && <HomeBreadcrumbItem />} |
| 94 | + {breadcrumbs.map((item, idx) => { |
| 95 | + const isLast = idx === breadcrumbs.length - 1; |
| 96 | + return ( |
| 97 | + <BreadcrumbsItem |
| 98 | + key={idx} |
| 99 | + active={isLast} |
| 100 | + index={idx} |
| 101 | + addMicrodata={!!item.href}> |
| 102 | + <BreadcrumbsItemLink href={item.href} isLast={isLast}> |
| 103 | + {item.label} |
| 104 | + </BreadcrumbsItemLink> |
| 105 | + </BreadcrumbsItem> |
| 106 | + ); |
| 107 | + })} |
| 108 | + </ul> |
| 109 | + </nav> |
| 110 | + ); |
| 111 | +} |
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