bookish_admin.module

<?php

/**
 * @file
 * Hook implementations for bookish_admin.
 */

use Drupal\Core\Render\BubbleableMetadata;
use Drupal\lunr\LunrSearchInterface;
use Drupal\taxonomy\Entity\Term;

/**
 * Implements hook_form_FORM_ID_alter().
 */
function bookish_admin_form_node_form_alter(&$form, &$form_state, $form_id) {
  $form['#attached']['library'][] = 'bookish_admin/node_form';
}

/**
 * Implements hook_lunr_search_page_alter().
 */
function bookish_admin_lunr_search_page_alter(array &$build, LunrSearchInterface $lunr_search) {
  if ($lunr_search->id() === 'default') {
    $terms = Term::loadMultiple();
    $build['form']['tags_container'] = [
      '#type' => 'container',
      '#attributes' => ['class' => ['bookish-search-tags']],
      '#attached' => [
        'drupalSettings' => [
          'lunrOperators' => ['field_tags' => 'OR'],
        ],
      ],
      '#weight' => 2,
      'label' => [
        '#markup' => '<div class="bookish-search-tags-label">' . t('Tags') . '</div>',
      ],
    ];
    foreach ($terms as $id => $term) {
      $build['form']['tags_container']['tags'][$term->label()] = [
        '#type' => 'checkbox',
        '#title' => $term->label(),
        '#return_value' => $term->label(),
        '#attributes' => [
          'data-lunr-search-field' => 'field_tags',
          'data-lunr-auto-submit' => 1,
          'class' => ['visually-hidden'],
        ],
        '#id' => 'bookish-search-tag-' . $id,
      ];
    }
    ksort($build['form']['tags_container']['tags']);
  }
  $build['results']['#attributes']['class'][] = 'container';
  $build['results']['#attributes']['class'][] = 'container--no-grid';
  $build['form']['#attributes']['class'][] = 'container';
  $build['form']['#attributes']['class'][] = 'container--no-grid';
}

/**
 * Implements hook_token_info().
 */
function bookish_admin_token_info() {
  $info = [];

  $info['types']['bookish'] = [
    'name' => t('Bookish'),
    'description' => t('Bookish tokens'),
  ];

  $info['tokens']['bookish']['social_node'] = [
    'name' => t('Default social node'),
    'description' => t('The node ("social_node") that contains the default site description and image.'),
    'type' => 'node',
  ];

  return $info;
}

/**
 * Implements hook_tokens().
 */
function bookish_admin_tokens($type, $tokens, array $data, array $options, BubbleableMetadata $bubbleable_metadata) {
  $replacements = [];

  if ($type !== 'bookish') {
    return $replacements;
  }

  if ($tokens = \Drupal::token()->findWithPrefix($tokens, 'social_node')) {
    $nodes = \Drupal::entityTypeManager()->getStorage('node')->loadByProperties([
      'title' => 'social_node',
    ]);
    if (empty($nodes)) {
      return $replacements;
    }
    $node = reset($nodes);
    $replacements += \Drupal::token()->generate('node', $tokens, ['node' => $node], $options, $bubbleable_metadata);
  }

  return $replacements;

}