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<?php |
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// Todo, manage it via composer when sonata admin is upgraded to v4 (knp-menu is blocking) |
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/* |
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* PHP TableOfContents Library. |
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* |
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* @license http://opensource.org/licenses/MIT |
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* |
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* @see https://github.com/caseyamcl/toc |
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* |
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* @version 2 |
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* |
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* @author Casey McLaughlin <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE.md |
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* file that was distributed with this source code. |
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* |
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* ------------------------------------------------------------------ |
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*/ |
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declare(strict_types=1); |
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namespace PiedWeb\CMSBundle\Service\toc; |
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use Masterminds\HTML5; |
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use RuntimeException; |
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/** |
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* TOC Markup Fixer adds `id` attributes to all H1...H6 tags where they do not |
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* already exist. |
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* |
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* @author Casey McLaughlin <[email protected]> |
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*/ |
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class MarkupFixer |
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{ |
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use HtmlHelper; |
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/** |
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* @var HTML5 |
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*/ |
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private $htmlParser; |
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/** |
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* Constructor. |
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* |
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* @param HTML5 $htmlParser |
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*/ |
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public function __construct(HTML5 $htmlParser = null) |
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{ |
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$this->htmlParser = $htmlParser ?: new HTML5(); |
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} |
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/** |
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* Fix markup. |
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* |
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* @return string Markup with added IDs |
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* |
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* @throws RuntimeException |
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*/ |
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public function fix(string $markup, int $topLevel = 1, int $depth = 6): string |
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{ |
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if (!$this->isFullHtmlDocument($markup)) { |
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$partialID = uniqid('toc_generator_'); |
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$markup = sprintf("<body id='%s'>%s</body>", $partialID, $markup); |
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} |
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$domDocument = $this->htmlParser->loadHTML($markup); |
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$domDocument->preserveWhiteSpace = true; // do not clobber whitespace |
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$sluggifier = new UniqueSluggifier(); |
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/** @var \DOMElement $node */ |
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foreach ($this->traverseHeaderTags($domDocument, $topLevel, $depth) as $node) { |
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if ($node->getAttribute('id')) { |
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continue; |
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} |
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$node->setAttribute('id', $sluggifier->slugify($node->getAttribute('title') ?: $node->textContent)); |
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} |
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return $this->htmlParser->saveHTML( |
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(isset($partialID)) ? $domDocument->getElementById($partialID)->childNodes : $domDocument |
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); |
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} |
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} |
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PiedWeb /
CMS
