add own logic

advanced_search.module

@@ -0,0 +1,152 @@
+<?php
+
+/**
+ * @file
+ * Contains advanced_search.module.
+ *
+ * This file is part of the Islandora Project.
+ *
+ * (c) Islandora Foundation
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+use Drupal\block\Entity\Block;
+use Drupal\Component\Utility\Unicode;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\advanced_search\AdvancedSearchQuery;
+use Drupal\advanced_search\Form\SettingsForm;
+use Drupal\advanced_search\Utilities;
+use Drupal\search_api\Query\QueryInterface as DrupalQueryInterface;
+use Drupal\views\ViewExecutable;
+use Solarium\Core\Query\QueryInterface as SolariumQueryInterface;
+
+/**
+ * Implements hook_theme().
+ */
+function advanced_search_theme() {
+  return [
+    'facets_result_item__summary' => [
+      'template' => 'facets/facets-result-item--summary',
+      'base hook' => 'facets_result_item',
+    ],
+  ];
+}
+
+/**
+ * Implements hook_library_info_alter().
+ */
+function advanced_search_library_info_alter(&$libraries, $extension) {
+  if ($extension == 'facets') {
+    // Override facets module javascript with customizations.
+    // https://www.drupal.org/node/2940438
+    $path = '/' . \Drupal::service('extension.list.module')->getPath('advanced_search') . '/js/facets';
+    $libraries['soft-limit']['js'] = [
+      "$path/soft-limit.js" => [],
+    ];
+    $libraries['drupal.facets.views-ajax']['js'] = [
+      "$path/facets-views-ajax.js" => [],
+    ];
+  }
+}
+
+/**
+ * Implements hook_form_form_id_alter().
+ */
+function advanced_search_form_block_form_alter(&$form, FormStateInterface $form_state, $form_id) {
+  // Islandora removes this condition from the form, but we require it.
+  // So we can show blocks for nodes which belong to specific models.
+  // Allowing us to add a block for collections only.
+  $visibility = [];
+  $entity_id = $form['id']['#default_value'];
+  $block = Block::load($entity_id);
+  if ($block) {
+    $visibility = $block->getVisibility();
+  }
+  $manager = \Drupal::getContainer()->get('plugin.manager.condition');
+  $condition_id = 'node_has_term';
+
+  /** @var \Drupal\Core\Condition\ConditionInterface $condition */
+  if (array_key_exists($condition_id, $visibility)) {
+    $condition = $manager->createInstance($condition_id, $visibility[$condition_id] ?? []);
+    $form_state->set(['conditions', $condition_id], $condition);
+    $condition_form = $condition->buildConfigurationForm([], $form_state);
+    $condition_form['#type'] = 'details';
+    $condition_form['#title'] = $condition->getPluginDefinition()['label'];
+    $condition_form['#group'] = 'visibility_tabs';
+    // Not all blocks are required to give this field.
+    $condition_form['term']['#required'] = FALSE;
+    $form['visibility'][$condition_id] = $condition_form;
+  }
+}
+
+/**
+ * Implements hook_preprocess_block__facets_summary().
+ */
+function advanced_search_preprocess_block__facets_summary(&$variables) {
+  // Copy data-attributes to the content as the javascript expects
+  // there to be no elements between the data declaration and the
+  // content of the block.
+  foreach ($variables['attributes'] as $key => $value) {
+    if (substr($key, 0, 4) === "data") {
+      $variables['content_attributes'][$key] = $value;
+    }
+  }
+}
+
+/**
+ * Implements hook_preprocess_preprocess_views_view().
+ */
+function advanced_search_preprocess_views_view(&$variables) {
+  /** @var \Drupal\views\ViewExecutable $view */
+  $view = &$variables['view'];
+  $views = Utilities::getPagerViewDisplays();
+  // Only add the toggle class for view display on displays in which the pager
+  // has been created for.
+  if (in_array([$view->id(), $view->current_display], $views)) {
+    // Toggle between 'list' and 'grid' display depending on url parameter.
+    $config = \Drupal::config(SettingsForm::CONFIG_NAME);
+
+    $format = \Drupal::request()->query->get('display') ?? $config->get(SettingsForm::DISPLAY_DEFAULT);
+    $variables['attributes']['class'][] = "view-{$format}";
+    $view->element['#attached']['library'][] = 'advanced_search/advanced.search.pager';
+  }
+  $view = &$variables['view'];
+}
+
+/**
+ * Implements hook_views_pre_view().
+ */
+function advanced_search_views_pre_view(ViewExecutable $view, $display_id, array &$args) {
+  // Allow for recursive searches by disabling contextual filter.
+  $advanced_search_query = new AdvancedSearchQuery();
+  $advanced_search_query->alterView(\Drupal::request(), $view, $display_id);
+}
+
+/**
+ * Implements hook_preprocess_facets_result_item().
+ */
+function advanced_search_preprocess_facets_result_item(&$variables) {
+  $settings = \Drupal::config(SettingsForm::CONFIG_NAME);
+  $length = $settings->get(SettingsForm::FACET_TRUNCATE);
+  if (is_numeric($length)) {
+    // Limit the length of facets display to at most 32 characters.
+    if (is_string($variables['value'])) {
+      $variables['value'] = Unicode::truncate(
+        $variables['value'],
+        $length,
+        TRUE,
+        TRUE
+      );
+    }
+    elseif (is_string($variables['value']['text']['#title'])) {
+      $variables['value']['text']['#title'] = Unicode::truncate(
+        $variables['value']['text']['#title'],
+        $length,
+        TRUE,
+        TRUE
+          );
+    }
+  }
+}