/**
* Resolve destination.
*
* Returns Zend_Pdf_Page page object or null if destination is not found within PDF document.
*
* @param Zend_Pdf_Destination $destination Destination to resolve
* @param boolean $refreshPagesHash Refresh page collection hashes before processing
* @return Zend_Pdf_Page|null
* @throws Zend_Pdf_Exception
*/
public function resolveDestination(Zend_Pdf_Destination $destination, $refreshPageCollectionHashes = true)
{
if ($this->_pageReferences === null || $refreshPageCollectionHashes) {
$this->_refreshPagesHash();
}
if ($destination instanceof Zend_Pdf_Destination_Named) {
if (!isset($this->_namedTargets[$destination->getName()])) {
return null;
}
$destination = $this->getNamedDestination($destination->getName());
if ($destination instanceof Zend_Pdf_Action) {
if (!$destination instanceof Zend_Pdf_Action_GoTo) {
return null;
}
$destination = $destination->getDestination();
}
if (!$destination instanceof Zend_Pdf_Destination_Explicit) {
require_once 'Zend/Pdf/Exception.php';
throw new Zend_Pdf_Exception('Named destination target has to be an explicit destination.');
}
}
// Named target is an explicit destination
$pageElement = $destination->getResource()->items[0];
if ($pageElement->getType() == Zend_Pdf_Element::TYPE_NUMERIC) {
// Page reference is a PDF number
if (!isset($this->_pageNumbers[$pageElement->value])) {
return null;
}
return $this->_pageNumbers[$pageElement->value];
}
// Page reference is a PDF page dictionary reference
$pageDictionaryHashId = spl_object_hash($pageElement->getObject());
if (!isset($this->_pageReferences[$pageDictionaryHashId])) {
return null;
}
return $this->_pageReferences[$pageDictionaryHashId];
}
