Code
/
islandora
7
0
Fork 0
Code Issues Pull Requests 1 Projects Releases Wiki Activity
Browse Source

Remove term-based hOCR configuration since we can just use Views.

pull/952/head
Alexander O'Neill 1 year ago committed by Seth Shaw
parent
e1fde43e21
commit
4ca6a0c88a
2 changed files with 11 additions and 62 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 4
      modules/islandora_iiif/README.md
  2. 69
      modules/islandora_iiif/src/Plugin/views/style/IIIFManifest.php

4
modules/islandora_iiif/README.md
Unescape View File

@ -37,9 +37,7 @@ You can set the following configuration at `admin/config/islandora/iiif`:
This module implements a Views Style plugin. It provides the following settings:
1. Tile Source: A field that was added to the views list of fields with the image to be served. This should be a File or Image type field on a Media.
2. Structured Text field: This lets you specify a file field on the same entity as above where OCR text with positional data, e.g., hOCR can be found.
3. Structured Text term: The Islandora term with a Media Use URI where the structured OCR text can be found. This is another option to the above for storing this data in a separate media related to the parent node, rather than on the same media.
2. Structured Text field: This lets you specify a file field where OCR text with positional data, e.g., hOCR can be found.
## Documentation
Official documentation is available on the [Islandora 8 documentation site](https://islandora.github.io/documentation/).

69
modules/islandora_iiif/src/Plugin/views/style/IIIFManifest.php
Unescape View File

@ -154,11 +154,6 @@ class IIIFManifest extends StylePluginBase {
$content_path = implode('/', $url_components);
$iiif_base_id = $request_host . '/' . $content_path;
/**
* @var \Drupal\taxonomy\TermInterface|null
*/
$structured_text_term = $this->utils->getTermForUri($this->options['structured_text_term_uri']);
// @see https://iiif.io/api/presentation/2.1/#manifest
$json += [
'@type' => 'sc:Manifest',
@ -178,7 +173,7 @@ class IIIFManifest extends StylePluginBase {
// For each row in the View result.
foreach ($this->view->result as $row) {
// Add the IIIF URL to the image to print out as JSON.
$canvases = $this->getTileSourceFromRow($row, $iiif_address, $iiif_base_id, $structured_text_term);
$canvases = $this->getTileSourceFromRow($row, $iiif_address, $iiif_base_id);
foreach ($canvases as $tile_source) {
$json['sequences'][0]['canvases'][] = $tile_source;
}
@ -201,13 +196,11 @@ class IIIFManifest extends StylePluginBase {
* @param string $iiif_base_id
* The URL for the request, minus the last part of the URL,
* which is likely "manifest".
* @param \Drupal\taxonomy\TermInterface|null $structured_text_term
* The term that structured text media references, if any.
*
* @return array
* List of IIIF URLs to display in the Openseadragon viewer.
*/
protected function getTileSourceFromRow(ResultRow $row, $iiif_address, $iiif_base_id, $structured_text_term) {
protected function getTileSourceFromRow(ResultRow $row, $iiif_address, $iiif_base_id) {
$canvases = [];
foreach (array_filter(array_values($this->options['iiif_tile_field'])) as $iiif_tile_field) {
$viewsField = $this->view->field[$iiif_tile_field];
@ -264,7 +257,7 @@ class IIIFManifest extends StylePluginBase {
],
];
if ($ocr_url = $this->getOcrUrl($entity, $structured_text_term)) {
if ($ocr_url = $this->getOcrUrl($entity, $row, $i)) {
$tmp_canvas['seeAlso'] = [
'@id' => $ocr_url,
'format' => 'text/vnd.hocr+html',
@ -331,36 +324,24 @@ class IIIFManifest extends StylePluginBase {
*
* @param \Drupal\Core\Entity\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) {
protected function getOcrUrl(EntityInterface $entity, $row, $delta) {
$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_entity = $ocrField->getEntity($row);
$ocr_field_name = $ocrField->definition['field_name'];
if (!is_null($ocrField_name)) {
if (!is_null($ocr_field_name)) {
$ocrs = $ocr_entity->{$ocr_field_name};
$ocr = isset($ocrs[$i]) ? $ocrs[$i] : FALSE;
$ocr_url = $ocr->entity->createFileUrl(FALSE);
}
}
elseif ($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);
$ocr = isset($ocrs[$delta]) ? $ocrs[$delta] : FALSE;
if ($ocr) {
$ocr_url = $ocr->entity->createFileUrl(FALSE);
}
}
}
@ -467,15 +448,6 @@ class IIIFManifest extends StylePluginBase {
'#options' => $field_options,
'#required' => FALSE,
];
$form['structured_text_term'] = [
'#type' => 'entity_autocomplete',
'#target_type' => 'taxonomy_term',
'#title' => $this->t('Structured text term'),
'#default_value' => $this->utils->getTermForUri($this->options['structured_text_term_uri']),
'#required' => FALSE,
'#description' => $this->t('Term indicating the media that holds structured text, such as hOCR, for the given object.'),
];
}
/**
@ -487,25 +459,4 @@ class IIIFManifest extends StylePluginBase {
public function getFormats() {
return ['json' => 'json'];
}
/**
* Submit handler for options form.
* Used to store the structured text media term by URL instead of Ttid.
*
* @param array $form
* The form.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* The form state object.
*
* @return void
*/
public function submitOptionsForm(&$form, FormStateInterface $form_state) {
$style_options = $form_state->getValue('style_options');
$tid = $style_options['structured_text_term'];
$term = $this->entityTypeManager->getStorage('taxonomy_term')->load($tid);
$style_options['structured_text_term_uri'] = $this->utils->getUriForTerm($term);
$form_state->setValue('style_options', $style_options);
parent::submitOptionsForm($form, $form_state);
}
}

Write Preview
Loading…
Cancel
Save