130 lines
3.2 KiB
TypeScript
130 lines
3.2 KiB
TypeScript
import { createElement, ReactElement } from 'react';
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import { domToReact, DomElement, HTMLReactParserOptions } from 'html-react-parser';
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import { Link } from 'gatsby';
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import rewriteAPILink from './rewriteAPILink';
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import { getCurrentNode, getCurrentVersion } from '../utils/nodes';
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import path from 'path';
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import { SilverstripeDocument } from '../types';
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interface LinkAttributes {
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href?: string;
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};
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const relativeLink = (currentNode: SilverstripeDocument, href: string): string => {
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const slug = path.join(currentNode.isIndex ? currentNode.slug : currentNode.parentSlug, href);
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if (!slug.endsWith('/')) {
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return `${slug}/`
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}
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return slug;
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};
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/**
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* Ensure links use the Gatsby <Link /> component. Client-side routing FTW
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*
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* @param attribs
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* @param children
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* @param parseOptions
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*/
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const rewriteLink = (
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attribs: LinkAttributes,
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children: DomElement[],
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parseOptions: HTMLReactParserOptions
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): ReactElement|false => {
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const { href } = attribs;
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if (!href) {
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return false;
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}
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const currentNode = getCurrentNode();
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const version = getCurrentVersion();
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// shorthand api links
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if (href.match(/^api\:/)) {
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const newHref = rewriteAPILink(href);
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return createElement(
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'a',
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{
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className: 'api-link',
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href: newHref,
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target: '_blank'
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},
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domToReact(children, parseOptions)
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);
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}
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// explicit API links
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if (href.match(/api\.silverstripe\.org/)) {
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return createElement(
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'a',
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{
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className: 'api-link',
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href,
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target: '_blank',
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},
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domToReact(children, parseOptions)
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)
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}
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// absolute links
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if (href.match(/^https?/)) {
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return createElement(
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'a',
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{ href, target: '_blank' },
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domToReact(children, parseOptions)
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);
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}
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// Relative to root
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if (href.startsWith('/')) {
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return createElement(
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Link,
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{
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to: path.join('/', 'en', version, href),
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className: 'gatsby-link'
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},
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domToReact(children, parseOptions)
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)
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}
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// Relative to page
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if (currentNode && currentNode.parentSlug) {
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// Relative links to markdown files should be resolved to their pretty urls.
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if (href.endsWith('.md')) {
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return createElement(
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Link,
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{
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to: relativeLink(currentNode, href.replace(/\.md$/, '')),
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className: 'gatsby-link',
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},
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domToReact(children, parseOptions)
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)
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}
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return createElement(
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Link,
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{
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to: relativeLink(currentNode, href),
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className: 'gatsby-link'
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},
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domToReact(children, parseOptions)
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)
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}
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// All else fails, just return the link as is.
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return createElement(
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Link,
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{
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to: path.join('/', href),
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className: 'gatsby-link',
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},
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domToReact(children, parseOptions)
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);
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}
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export default rewriteLink;
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