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<?php |
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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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* (c) Rezo Zero / Ambroise Maupate |
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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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declare(strict_types=1); |
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namespace League\CommonMark\Extension\Footnote\Renderer; |
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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\Extension\Footnote\Node\FootnoteBackref; |
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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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final class FootnoteBackrefRenderer implements NodeRendererInterface, ConfigurationAwareInterface |
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{ |
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public const DEFAULT_SYMBOL = '↩'; |
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/** @var ConfigurationInterface */ |
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private $config; |
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/** |
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* {@inheritDoc} |
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*/ |
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105 |
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public function render(Node $node, ChildNodeRendererInterface $childRenderer) |
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{ |
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if (! ($node instanceof FootnoteBackref)) { |
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throw new \InvalidArgumentException('Incompatible node type: ' . \get_class($node)); |
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} |
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$attrs = $node->getData('attributes', []); |
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$attrs['class'] = $attrs['class'] ?? $this->config->get('footnote/backref_class', 'footnote-backref'); |
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$attrs['rev'] = 'footnote'; |
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$attrs['href'] = \mb_strtolower($node->getReference()->getDestination()); |
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$attrs['role'] = 'doc-backlink'; |
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$symbol = $this->config->get('footnote/backref_symbol', self::DEFAULT_SYMBOL); |
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\assert(\is_string($symbol)); |
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return ' ' . new HtmlElement('a', $attrs, \htmlspecialchars($symbol), true); |
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} |
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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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thephpleague /
commonmark
