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<?php |
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/* |
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* This file is part of ocubom/twig-svg-extension |
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* |
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* © Oscar Cubo Medina <https://ocubom.github.io> |
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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 Ocubom\Twig\Extension\Svg\Processor; |
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use Ocubom\Twig\Extension\Svg\Ident; |
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use Ocubom\Twig\Extension\Svg\Util\DomHelper; |
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class TitleProcessor implements ProcessorInterface |
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{ |
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public function __invoke(\DOMElement $svg, array $options = []): \DOMElement |
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{ |
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if (empty($options['title'])) { |
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return $svg; // Do nothing unless title is set |
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} |
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/** @var \DOMNode $child */ |
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foreach ($svg->getElementsByTagName('title') as $child) { |
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// Remove title nodes directly under main element |
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if ($child->parentNode === $svg) { |
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DomHelper::removeNode($child); |
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} |
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} |
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// Create title element |
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assert($svg->ownerDocument instanceof \DOMDocument); |
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$title = $svg->insertBefore( |
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$svg->ownerDocument->createElement('title', $options['title']), |
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$svg->firstChild |
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); |
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assert($title instanceof \DOMElement); |
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// Generate title identifier |
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$id = $options['aria-labelledby'] ?? Ident::generate($title); |
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// Reference title identifier with aria attribute |
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$title->setAttribute('id', $id); |
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$svg->setAttribute('aria-labelledby', $id); |
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return $svg; |
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} |
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} |
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ocubom /
twig-svg-extension
