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| Title | |
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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Phpdftk\Svg; |
| 6 | |
| 7 | /** |
| 8 | * SVG 2 §15.3 — `<title>` element. Accessibility-tree title for |
| 9 | * the closest container. Never renders directly. The PDF |
| 10 | * writer's tagged-PDF path uses the title to populate the |
| 11 | * structure tree's title attribute on the matching mark. |
| 12 | */ |
| 13 | final class Title extends Element |
| 14 | { |
| 15 | public function __construct() |
| 16 | { |
| 17 | parent::__construct('title'); |
| 18 | } |
| 19 | |
| 20 | public function text(): string |
| 21 | { |
| 22 | return trim($this->collectText($this)); |
| 23 | } |
| 24 | |
| 25 | private function collectText(Element $element): string |
| 26 | { |
| 27 | $out = ''; |
| 28 | foreach ($element->children as $child) { |
| 29 | if ($child instanceof Text) { |
| 30 | $out .= $child->data; |
| 31 | } elseif ($child instanceof Element) { |
| 32 | $out .= $this->collectText($child); |
| 33 | } |
| 34 | } |
| 35 | return $out; |
| 36 | } |
| 37 | } |