islandora_mirador.module

<?php

/**
 * @file
 * Supports Islandora submodule islandora_mirador.
 */

use Drupal\Component\Utility\Html;
use Drupal\Core\Config\ImmutableConfig;

use Drupal\islandora_mirador\IslandoraMiradorPluginPluginBase;
use Drupal\islandora_mirador\IslandoraMiradorPluginInterface;

/**
 * Implements hook_theme().
 */
function islandora_mirador_theme() {
  return [
    'mirador' => [
      'variables' => [
        'iiif_manifest_url' => NULL,
        'mirador_view_id' => NULL,
        'thumbnail_navigation_position' => 'far-bottom',
        'window_config' => [],
        'workspace_config' => [],
      ],
      'template' => 'mirador',
    ],
  ];
}

/**
 * Preprocess variables for mirador templates.
 */
function template_preprocess_mirador(&$variables) {
  $variables['mirador_view_id'] = Html::getUniqueId($variables['mirador_view_id']);

  /**
   * @var \Drupal\islandora_mirador\IslandoraMiradorPluginManager
   */
  $mirador_plugin_manager = \Drupal::service('plugin.manager.islandora_mirador');

  /**
   * @var \Drupal\Core\Config\ImmutableConfig
   */
  $config = \Drupal::service('config.factory')->get('islandora_mirador.settings');

  $mirador_plugins = $mirador_plugin_manager->getDefinitions();
  $enabled_plugins = $config->get('mirador_enabled_plugins');
  $variables['#attached']['drupalSettings']['mirador']['enabled_plugins'] = array_filter(array_values($enabled_plugins));

  $window_config = $variables['window_config'];
  foreach ($mirador_plugins as $plugin_id => $plugin_definition) {
    if (isset($enabled_plugins[$plugin_id])) {
      $plugin_instance = $mirador_plugin_manager->createInstance($plugin_id);
      /**
       * @var Drupal\islandora_mirador\IslandoraMiradorPluginInterface
       */
      $plugin_instance->windowConfigAlter($window_config);
    }
  }

  // XXX: Maintain the original properties, for now.
  $variables['#attached']['drupalSettings']['mirador_view_id'] = $variables['mirador_view_id'];
  $variables['#attached']['drupalSettings']['mirador_window_settings'] = $window_config;
  $variables['#attached']['drupalSettings']['mirador_enabled_plugins'] = $variables['#attached']['drupalSettings']['mirador']['enabled_plugins'];

  // mirador.window_settings ... isn't presently used on its own?
  $variables['#attached']['drupalSettings']['mirador']['window_settings'] = $window_config;

  // mirador.viewers is an associative array mapping CSS/jQuery/once selectors
  // to objects of mirador configuration.
  $variables['#attached']['drupalSettings']['mirador']['viewers']["#{$variables['mirador_view_id']}"] = [
    'id' => $variables['mirador_view_id'],
    'manifests' => [
      $variables['iiif_manifest_url'] => [
        'provider' => 'Islandora'
      ],
    ],
    'window' => $window_config,
    'windows' => [
      [
        'manifestId' => $variables['iiif_manifest_url'],
        'thumbnailNavigationPosition' => $variables['thumbnail_navigation_position'],
      ],
    ],
    'workspace' => $variables['workspace_config'],
  ];
}

/**
 * Implements hook_library_info_alter().
 */
function islandora_mirador_library_info_alter(&$libraries, $extension) {
  if ($extension == 'islandora_mirador') {

    $config = \Drupal::service('config.factory')->get('islandora_mirador.settings');
    if ($config->get('mirador_library_installation_type') == 'local') {
      unset($libraries['mirador']['remote']);
      unset($libraries['mirador']['license']);
      unset($libraries['mirador']['js']);
      $libraries['mirador']['js']['/libraries/mirador/dist/main.js'] = [];
    }
  }
}