distributors.module

<?php

/**
 * @file
 * Contains distributors.module
 */

use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Url;
use Symfony\Component\HttpFoundation\RedirectResponse;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Entity\EntityInterface;


/**
 * Implements hook_theme()
 */
function distributors_theme() {
  $themes['distributors_search_form'] = [
	'render element' => 'form',
	'template' => 'distributors_search_form'
  ];

  $themes['distributors_googlemap_results'] = [
    'variables' => [
      'map_height' => NULL,
      'map_width' => NULL,
    ],
	'template' => 'distributors_googlemap_results'
  ];

  return $themes;
}



/**
* Implements hook_views_pre_render().
*/
function distributors_views_pre_render(\Drupal\views\ViewExecutable $view) {
  if (isset($view) && ($view->storage->id() == 'distributors')) {
    $view->element['#attached']['library'][] = 'distributors/search_page';
  }
}


/**
* Implements hook__library_info_alter().
*/
function distributors_library_info_alter(&$libraries, $extension) {
  if ($extension == 'distributors') {
    foreach($libraries as $key =>$library) {
      if($key == 'search_page') {
        foreach($libraries['search_page']['js'] as $jkey => $row) {
		  $pos = stripos($jkey, 'maps.googleapis.com/maps/api');
		  if ($pos !== false) {  //found
		    //get current language
  			$language = \Drupal::languageManager()->getCurrentLanguage()->getId();
			
			//get api key
  			$config = \Drupal::config('distributors.settings');
  			$api_key = $config->get('api_key');
  			
  			$newkey = '//maps.googleapis.com/maps/api/js?libraries=places&key='.$api_key.'&language='.$language;
			if($newkey != $jkey) {
			  $libraries['search_page']['js'][$newkey] = $libraries['search_page']['js'][$jkey];
			  unset($libraries['search_page']['js'][$jkey]);
			}
			break;
		  }
        }
        break;
      }
    }
  }

}