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Refactor IIIF Manifest Views Style plugin.

pull/952/head
Alexander O'Neill 1 year ago committed by Seth Shaw
parent
commit
2307dc6936
  1. 70
      modules/islandora_iiif/src/Plugin/views/style/IIIFManifest.php

70
modules/islandora_iiif/src/Plugin/views/style/IIIFManifest.php

@ -3,8 +3,9 @@
namespace Drupal\islandora_iiif\Plugin\views\style;
use Drupal\Core\Config\ImmutableConfig;
use Drupal\Core\File\FileSystemInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\File\FileSystemInterface;
use Drupal\Core\Field\FieldItemInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Messenger\MessengerInterface;
@ -210,33 +211,9 @@ class IIIFManifest extends StylePluginBase {
$canvases = [];
foreach (array_filter(array_values($this->options['iiif_tile_field'])) as $iiif_tile_field) {
$viewsField = $this->view->field[$iiif_tile_field];
$iiif_ocr_file_field = !empty($this->options['iiif_ocr_file_field']) ? array_filter(array_values($this->options['iiif_ocr_file_field'])) : [];
$ocrField = count($iiif_ocr_file_field) > 0 ? $this->view->field[$iiif_ocr_file_field[0]] : NULL;
$entity = $viewsField->getEntity($row);
if ($ocrField) {
$ocr_entity = $entity;
$ocr_field_name = $ocrField->definition['field_name'];
if (!is_null($ocrField_name)) {
$ocrs = $ocr_entity->{$ocr_field_name};
$ocr = isset($ocrs[$i]) ? $ocrs[$i] : FALSE;
$ocr_url = $ocr->entity->createFileUrl(FALSE);
}
}
else if ($structured_text_term) {
$parent_node = $this->utils->getParentNode($entity);
$ocr_entity_array = $this->utils->getMediaReferencingNodeAndTerm($parent_node, $structured_text_term);
$ocr_entity_id = is_array($ocr_entity_array) ? array_shift($ocr_entity_array) : NULL;
$ocr_entity = $ocr_entity_id ? $this->entityTypeManager->getStorage('media')->load($ocr_entity_id) : NULL;
$ocr_file_source = $ocr_entity ? $ocr_entity->getSource() : NULL;
$ocr_fid = $ocr_file_source->getSourceFieldValue($ocr_entity);
$ocr_file = $this->entityTypeManager->getStorage('file')->load($ocr_fid);
$ocr_url = $ocr_file->createFileUrl(FALSE);
}
if (isset($entity->{$viewsField->definition['field_name']})) {
/** @var \Drupal\Core\Field\FieldItemListInterface $images */
$images = $entity->{$viewsField->definition['field_name']};
foreach ($images as $i => $image) {
@ -287,7 +264,7 @@ class IIIFManifest extends StylePluginBase {
],
];
if ($ocr_url) {
if ($ocr_url = $this->getOcrUrl($entity, $structured_text_term)) {
$tmp_canvas['seeAlso'] = [
'@id' => $ocr_url,
'format' => 'text/vnd.hocr+html',
@ -348,6 +325,47 @@ class IIIFManifest extends StylePluginBase {
return [$width, $height];
}
/**
* Retrieves a URL text with positional data such as hOCR
*
* @param EntityInterface $entity
* The entity at the current row.
* @param \Drupal\taxonomy\TermInterface|null $structured_text_term
* The term that structured text media references, if any.
* return String|FALSE
* The absolute URL of the current row's structured text,
* or FALSE if none.
*/
protected function getOcrUrl(EntityInterface $entity, $structured_text_term) {
$ocr_url = FALSE;
$iiif_ocr_file_field = !empty($this->options['iiif_ocr_file_field']) ? array_filter(array_values($this->options['iiif_ocr_file_field'])) : [];
$ocrField = count($iiif_ocr_file_field) > 0 ? $this->view->field[$iiif_ocr_file_field[0]] : NULL;
if ($ocrField) {
$ocr_entity = $entity;
$ocr_field_name = $ocrField->definition['field_name'];
if (!is_null($ocrField_name)) {
$ocrs = $ocr_entity->{$ocr_field_name};
$ocr = isset($ocrs[$i]) ? $ocrs[$i] : FALSE;
$ocr_url = $ocr->entity->createFileUrl(FALSE);
}
}
else if ($structured_text_term) {
$parent_node = $this->utils->getParentNode($entity);
$ocr_entity_array = $this->utils->getMediaReferencingNodeAndTerm($parent_node, $structured_text_term);
$ocr_entity_id = is_array($ocr_entity_array) ? array_shift($ocr_entity_array) : NULL;
$ocr_entity = $ocr_entity_id ? $this->entityTypeManager->getStorage('media')->load($ocr_entity_id) : NULL;
if ($ocr_entity) {
$ocr_file_source = $ocr_entity->getSource();
$ocr_fid = $ocr_file_source->getSourceFieldValue($ocr_entity);
$ocr_file = $this->entityTypeManager->getStorage('file')->load($ocr_fid);
$ocr_url = $ocr_file->createFileUrl(FALSE);
}
}
return $ocr_url;
}
/**
* Pull a title from the node or media passed to this view.
*

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