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| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace Phpdftk\Pdf\Conformance\Constraint; |
| 6 | |
| 7 | use Phpdftk\Pdf\Conformance\Inspection\DocumentInspector; |
| 8 | use Phpdftk\Pdf\Conformance\Profile\ConformanceProfile; |
| 9 | use Phpdftk\Pdf\Conformance\Result\ConformanceViolation; |
| 10 | use Phpdftk\Pdf\Conformance\Result\ViolationSeverity; |
| 11 | use Phpdftk\Pdf\Core\Document\ViewerPreferences; |
| 12 | |
| 13 | /** |
| 14 | * PDF/UA-1 clause 7.18.1: ViewerPreferences /DisplayDocTitle must be true. |
| 15 | * |
| 16 | * The document title (from /Info /Title or XMP dc:title) must be |
| 17 | * displayed in the viewer title bar rather than the filename. |
| 18 | */ |
| 19 | final class DisplayDocTitleConstraint implements ConformanceConstraint |
| 20 | { |
| 21 | public function check(DocumentInspector $inspector, ConformanceProfile $profile): array |
| 22 | { |
| 23 | // Check registered objects for a ViewerPreferences with displayDocTitle |
| 24 | $found = false; |
| 25 | foreach ($inspector->getRegisteredObjects() as $object) { |
| 26 | if ($object instanceof ViewerPreferences) { |
| 27 | if ($object->displayDocTitle === true) { |
| 28 | return []; |
| 29 | } |
| 30 | $found = true; |
| 31 | } |
| 32 | } |
| 33 | |
| 34 | // Also check if Catalog has viewerPreferences as inline dict |
| 35 | $catalog = $inspector->getCatalog(); |
| 36 | if ($catalog->viewerPreferences !== null && !$found) { |
| 37 | // Inline PdfDictionary — check for DisplayDocTitle key |
| 38 | if ($catalog->viewerPreferences->has('DisplayDocTitle')) { |
| 39 | $val = $catalog->viewerPreferences->get('DisplayDocTitle'); |
| 40 | if ($val instanceof \Phpdftk\Pdf\Core\PdfBoolean && $val->value === true) { |
| 41 | return []; |
| 42 | } |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | return [new ConformanceViolation( |
| 47 | clause: '7.18.1', |
| 48 | message: 'ViewerPreferences /DisplayDocTitle must be true — the document title must appear in the viewer title bar', |
| 49 | severity: ViolationSeverity::Error, |
| 50 | objectPath: 'Catalog.ViewerPreferences.DisplayDocTitle', |
| 51 | )]; |
| 52 | } |
| 53 | } |