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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\DefaultAttributes; |
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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\Event\DocumentParsedEvent; |
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use League\CommonMark\Extension\Attributes\Util\AttributesHelper; |
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final class ApplyDefaultAttributesProcessor implements ConfigurationAwareInterface |
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{ |
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/** @var ConfigurationInterface */ |
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private $config; |
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public function onDocumentParsed(DocumentParsedEvent $event): void |
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{ |
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/** @var array<string, array<string, mixed>> $map */ |
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$map = $this->config->get('default_attributes'); |
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$document = $event->getDocument(); |
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$walker = $document->walker(); |
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while ($event = $walker->next()) { |
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$node = $event->getNode(); |
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// Only modify nodes when we first encounter them |
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if (! $event->isEntering()) { |
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continue; |
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} |
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// Check to see if any default attributes were defined |
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if (($attributesToApply = $map[\get_class($node)] ?? []) === []) { |
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continue; |
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} |
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$newAttributes = []; |
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foreach ($attributesToApply as $name => $value) { |
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if (\is_callable($value)) { |
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$value = $value($node); |
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// Callables are allowed to return `null` indicating that no changes should be made |
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if ($value !== null) { |
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$newAttributes[$name] = $value; |
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} |
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} else { |
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$newAttributes[$name] = $value; |
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} |
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} |
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// Merge these attributes into the node |
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if (\count($newAttributes) > 0) { |
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$node->data->set('attributes', AttributesHelper::mergeAttributes($node, $newAttributes)); |
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} |
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} |
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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
