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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the league/commonmark package. |
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* |
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* (c) Colin O'Dell <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace League\CommonMark\Extension\HeadingPermalink; |
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use League\CommonMark\Configuration\ConfigurationAwareInterface; |
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use League\CommonMark\Configuration\ConfigurationInterface; |
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use League\CommonMark\Node\Node; |
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use League\CommonMark\Renderer\ChildNodeRendererInterface; |
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use League\CommonMark\Renderer\NodeRendererInterface; |
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use League\CommonMark\Util\HtmlElement; |
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/** |
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* Renders the HeadingPermalink elements |
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*/ |
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final class HeadingPermalinkRenderer implements NodeRendererInterface, ConfigurationAwareInterface |
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{ |
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public const DEFAULT_SYMBOL = '¶'; |
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/** |
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* @var ConfigurationInterface |
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* |
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* @psalm-readonly-allow-private-mutation |
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*/ |
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private $config; |
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public function setConfiguration(ConfigurationInterface $configuration): void |
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{ |
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$this->config = $configuration; |
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} |
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/** |
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* @param HeadingPermalink $node |
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* |
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* {@inheritdoc} |
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* |
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* @psalm-suppress MoreSpecificImplementedParamType |
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*/ |
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public function render(Node $node, ChildNodeRendererInterface $childRenderer) |
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{ |
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if (! $node instanceof HeadingPermalink) { |
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throw new \InvalidArgumentException('Incompatible node type: ' . \get_class($node)); |
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} |
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$slug = $node->getSlug(); |
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$idPrefix = (string) $this->config->get('heading_permalink/id_prefix', 'user-content'); |
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if ($idPrefix !== '') { |
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$idPrefix .= '-'; |
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} |
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$attrs = $node->data->getData('attributes'); |
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$attrs->set('id', $idPrefix . $slug); |
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$attrs->set('href', '#' . $slug); |
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$attrs->set('name', $slug); |
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$attrs->append('class', $this->config->get('heading_permalink/html_class', 'heading-permalink')); |
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$attrs->set('aria-hidden', 'true'); |
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$attrs->set('title', $this->config->get('heading_permalink/title', 'Permalink')); |
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$symbol = $this->config->get('heading_permalink/symbol', self::DEFAULT_SYMBOL); |
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\assert(\is_string($symbol)); |
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return new HtmlElement('a', $attrs->export(), \htmlspecialchars($symbol), false); |
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} |
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} |
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thephpleague /
commonmark
