Viewing file:  TableOfContentsExtension.php (2.87 KB) -rwxrwxr-x
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<?php
declare(strict_types=1);
/*
* This file is part of the league/commonmark package.
*
* (c) Colin O'Dell <colinodell@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace League\CommonMark\Extension\TableOfContents;
use League\CommonMark\Environment\EnvironmentBuilderInterface;
use League\CommonMark\Event\DocumentParsedEvent;
use League\CommonMark\Extension\CommonMark\Node\Block\ListBlock;
use League\CommonMark\Extension\CommonMark\Renderer\Block\ListBlockRenderer;
use League\CommonMark\Extension\ConfigurableExtensionInterface;
use League\CommonMark\Extension\TableOfContents\Node\TableOfContents;
use League\CommonMark\Extension\TableOfContents\Node\TableOfContentsPlaceholder;
use League\Config\ConfigurationBuilderInterface;
use Nette\Schema\Expect;
final class TableOfContentsExtension implements ConfigurableExtensionInterface
{
public function configureSchema(ConfigurationBuilderInterface $builder): void
{
$builder->addSchema('table_of_contents', Expect::structure([
'position' => Expect::anyOf(TableOfContentsBuilder::POSITION_BEFORE_HEADINGS, TableOfContentsBuilder::POSITION_PLACEHOLDER, TableOfContentsBuilder::POSITION_TOP)->default(TableOfContentsBuilder::POSITION_TOP),
'style' => Expect::anyOf(ListBlock::TYPE_BULLET, ListBlock::TYPE_ORDERED)->default(ListBlock::TYPE_BULLET),
'normalize' => Expect::anyOf(TableOfContentsGenerator::NORMALIZE_RELATIVE, TableOfContentsGenerator::NORMALIZE_FLAT, TableOfContentsGenerator::NORMALIZE_DISABLED)->default(TableOfContentsGenerator::NORMALIZE_RELATIVE),
'min_heading_level' => Expect::int()->min(1)->max(6)->default(1),
'max_heading_level' => Expect::int()->min(1)->max(6)->default(6),
'html_class' => Expect::string()->default('table-of-contents'),
'placeholder' => Expect::anyOf(Expect::string(), Expect::null())->default(null),
]));
}
public function register(EnvironmentBuilderInterface $environment): void
{
$environment->addRenderer(TableOfContents::class, new TableOfContentsRenderer(new ListBlockRenderer()));
$environment->addEventListener(DocumentParsedEvent::class, [new TableOfContentsBuilder(), 'onDocumentParsed'], -150);
// phpcs:ignore SlevomatCodingStandard.ControlStructures.EarlyExit.EarlyExitNotUsed
if ($environment->getConfiguration()->get('table_of_contents/position') === TableOfContentsBuilder::POSITION_PLACEHOLDER) {
$environment->addBlockStartParser(TableOfContentsPlaceholderParser::blockStartParser(), 200);
// If a placeholder cannot be replaced with a TOC element this renderer will ensure the parser won't error out
$environment->addRenderer(TableOfContentsPlaceholder::class, new TableOfContentsPlaceholderRenderer());
}
}
}
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