110 lines
3.5 KiB
PHP
110 lines
3.5 KiB
PHP
<?php namespace Todaymade\Daux\ContentTypes\Markdown;
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use League\CommonMark\ElementRendererInterface;
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use League\CommonMark\HtmlElement;
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use League\CommonMark\Inline\Element\AbstractInline;
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use League\CommonMark\Inline\Element\Link;
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use League\CommonMark\Inline\Renderer\InlineRendererInterface;
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use League\CommonMark\Util\ConfigurationAwareInterface;
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use League\CommonMark\Util\ConfigurationInterface;
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use Todaymade\Daux\Config;
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use Todaymade\Daux\DauxHelper;
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use Todaymade\Daux\Exception\LinkNotFoundException;
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class LinkRenderer implements InlineRendererInterface, ConfigurationAwareInterface
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{
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/**
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* @var Config
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*/
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protected $daux;
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/**
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* @var \League\CommonMark\Inline\Renderer\LinkRenderer
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*/
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protected $parent;
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public function __construct($daux)
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{
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$this->daux = $daux;
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$this->parent = new \League\CommonMark\Inline\Renderer\LinkRenderer();
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}
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/**
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* @param AbstractInline|Link $inline
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*
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* @throws LinkNotFoundException
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*
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* @return HtmlElement
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*/
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public function render(AbstractInline $inline, ElementRendererInterface $htmlRenderer)
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{
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if (!($inline instanceof Link)) {
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throw new \InvalidArgumentException('Incompatible inline type: ' . \get_class($inline));
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}
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$element = $this->parent->render($inline, $htmlRenderer);
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$url = $inline->getUrl();
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// empty urls and anchors should
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// not go through the url resolver
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if (!DauxHelper::isValidUrl($url)) {
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return $element;
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}
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// Absolute urls, shouldn't either
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if (DauxHelper::isExternalUrl($url)) {
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$element->setAttribute('class', 'Link--external');
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$element->setAttribute('rel', 'noopener noreferrer');
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return $element;
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}
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// if there's a hash component in the url, ensure we
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// don't put that part through the resolver.
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$urlAndHash = explode('#', $url);
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$url = $urlAndHash[0];
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$foundWithHash = false;
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try {
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$file = DauxHelper::resolveInternalFile($this->daux, $url);
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$url = DauxHelper::getRelativePath($this->daux->getCurrentPage()->getUrl(), $file->getUrl());
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} catch (LinkNotFoundException $e) {
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// For some reason, the filename could contain a # and thus the link needs to resolve to that.
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try {
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if (strlen($urlAndHash[1] ?? '') > 0) {
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$file = DauxHelper::resolveInternalFile($this->daux, $url . '#' . $urlAndHash[1]);
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$url = DauxHelper::getRelativePath($this->daux->getCurrentPage()->getUrl(), $file->getUrl());
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$foundWithHash = true;
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}
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} catch (LinkNotFoundException $e2) {
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// If it's still not found here, we'll only
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// report on the first error as the second
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// one will tell the same.
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}
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if (!$foundWithHash) {
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if ($this->daux->isStatic()) {
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throw $e;
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}
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$element->setAttribute('class', 'Link--broken');
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}
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}
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if (!$foundWithHash && isset($urlAndHash[1])) {
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$url .= '#' . $urlAndHash[1];
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}
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$element->setAttribute('href', $url);
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return $element;
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}
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public function setConfiguration(ConfigurationInterface $configuration)
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{
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$this->parent->setConfiguration($configuration);
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}
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}
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