Issue #3296555 by Project Update Bot: Automated Drupal 10 compatibility fixes...

Issue #3296555 by Project Update Bot: Automated Drupal 10 compatibility fixes - dropping d8 support and adding d10

ajax_loader.info.yml

 name: Ajax Loader
 type: module
 description: 'Provides alternative ajax loaders/throbbers.'
-core: '8.x'
-core_version_requirement: ^8 || ^9
+core_version_requirement: ^9 || ^10
 package: 'User Interface'
 configure: ajax_loader.settings

ajax_loader.module

@@ -8,7 +8,7 @@ use Drupal\Core\Routing\RouteMatchInterface;
 function ajax_loader_help($route_name, RouteMatchInterface $route_match) {
   switch ($route_name) {
     case 'help.page.ajax_loader':
-      $output = file_get_contents(drupal_get_path('module', 'ajax_loader') . '/README.txt');
+      $output = file_get_contents(\Drupal::service('extension.list.module')->getPath('ajax_loader')  . '/README.txt');
       return '<pre>' . $output . '</pre>';
   }
 }

src/ThrobberPluginBase.php

@@ -2,12 +2,15 @@
 
 namespace Drupal\ajax_loader;
 
+use Drupal\Core\Extension\ModuleExtensionList;
+use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
 use Drupal\Core\Plugin\PluginBase;
+use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Class ThrobberBase.
  */
-abstract class ThrobberPluginBase extends PluginBase implements ThrobberPluginInterface {
+abstract class ThrobberPluginBase extends PluginBase implements ThrobberPluginInterface, ContainerFactoryPluginInterface {
 
   protected $path;
   protected $markup;
@@ -25,14 +28,38 @@ abstract class ThrobberPluginBase extends PluginBase implements ThrobberPluginIn
    * @param mixed $plugin_definition
    *   Plugin definition value.
    */
-  public function __construct(array $configuration, $plugin_id, $plugin_definition) {
+  public function __construct(array $configuration, $plugin_id, $plugin_definition, ModuleExtensionList $extensionList) {
     parent::__construct($configuration, $plugin_id, $plugin_definition);
 
-    $this->path = '/' . drupal_get_path('module', 'ajax_loader');
+    $this->path = '/' . $extensionList->getPath('ajax_loader');
     $this->markup = $this->setMarkup();
     $this->css_file = $this->setCssFile();
   }
 
+  /**
+   * Creates an instance of the plugin.
+   *
+   * @param \Symfony\Component\DependencyInjection\ContainerInterface $container
+   *   The container to pull out services used in the plugin.
+   * @param array $configuration
+   *   A configuration array containing information about the plugin instance.
+   * @param string $plugin_id
+   *   The plugin ID for the plugin instance.
+   * @param mixed $plugin_definition
+   *   The plugin implementation definition.
+   *
+   * @return static
+   *   Returns an instance of this plugin.
+   */
+  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
+    return new static(
+      $configuration,
+      $plugin_id,
+      $plugin_definition,
+      $container->get('extension.list.module'),
+    );
+  }
+
   /**
    * Function to get markup.
    *