wip - try to inject string translation into deriver class

src/Plugin/Derivative/FieldBlock.php

@@ -9,17 +9,30 @@ namespace Drupal\fieldblock\Plugin\Derivative;
 
 use Drupal\Component\Plugin\Derivative\DeriverBase;
 use Drupal\Core\Entity\Entity\EntityViewDisplay;
+use Drupal\Core\Plugin\Discovery\ContainerDeriverInterface;
 use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Symfony\Component\DependencyInjection\ContainerInterface;
 
 /**
  * Provides block plugin definitions for fieldblock blocks.
  *
  * @see \Drupal\fieldblock\Plugin\Block\FieldBlock
  */
-class FieldBlock extends DeriverBase {
+class FieldBlock extends DeriverBase implements ContainerDeriverInterface {
 
   use StringTranslationTrait;
 
+  /**
+   * {@inheritdoc}
+   */
+  public static function create(ContainerInterface $container, $base_plugin_id) {
+    $foo = 'bar';
+    return new static(
+      $base_plugin_id,
+      $container->get('string_translation')
+    );
+  }
+
   /**
    * {@inheritdoc}
    */
@@ -55,7 +68,7 @@ class FieldBlock extends DeriverBase {
 
       foreach ($view_display_fieldblocks as $field_name => $field_label) {
         $fieldblock_id = $display_id . ':' . $field_name;
-        $fieldblocks[$fieldblock_id] = t('@field field (from @type: @bundle: @mode)', array(
+        $fieldblocks[$fieldblock_id] = $this->t('@field field (from @type: @bundle: @mode)', array(
           '@field' => $field_label,
           '@type' => $entity_type,
           '@bundle' => $bundle,