Issue #2933924 by lucienchalom, elber, smustgrave, tim.plunkett, larowlan, lauriii: Move \Drupal\field_ui\Form\EntityViewDisplayEditForm::getFieldLabelOptions() to a trait

core/modules/field/src/FieldLabelOptionsTrait.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace Drupal\field;
+
+/**
+ * Provides a trait for the valid field label options.
+ */
+trait FieldLabelOptionsTrait {
+
+  /**
+   * Returns an array of visibility options for field labels.
+   *
+   * @return array
+   *   An array of visibility options.
+   */
+  protected function getFieldLabelOptions(): array {
+    return [
+      'above' => $this->t('Above'),
+      'inline' => $this->t('Inline'),
+      'hidden' => '- ' . $this->t('Hidden') . ' -',
+      'visually_hidden' => '- ' . $this->t('Visually Hidden') . ' -',
+    ];
+  }
+
+}

core/modules/field_ui/src/Form/EntityViewDisplayEditForm.php

@@ -8,6 +8,7 @@ use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Url;
 use Drupal\field_ui\FieldUI;
 use Symfony\Component\DependencyInjection\ContainerInterface;
+use Drupal\field\FieldLabelOptionsTrait;
 
 /**
  * Edit form for the EntityViewDisplay entity type.
@@ -15,7 +16,7 @@ use Symfony\Component\DependencyInjection\ContainerInterface;
  * @internal
  */
 class EntityViewDisplayEditForm extends EntityDisplayFormBase {
-
+  use FieldLabelOptionsTrait;
   /**
    * {@inheritdoc}
    */
@@ -147,21 +148,6 @@ class EntityViewDisplayEditForm extends EntityDisplayFormBase {
     ] + FieldUI::getRouteBundleParameter($entity_type, $this->entity->getTargetBundle()));
   }
 
-  /**
-   * Returns an array of visibility options for field labels.
-   *
-   * @return array
-   *   An array of visibility options.
-   */
-  protected function getFieldLabelOptions() {
-    return [
-      'above' => $this->t('Above'),
-      'inline' => $this->t('Inline'),
-      'hidden' => '- ' . $this->t('Hidden') . ' -',
-      'visually_hidden' => '- ' . $this->t('Visually Hidden') . ' -',
-    ];
-  }
-
   /**
    * {@inheritdoc}
    */

core/modules/layout_builder/src/Plugin/Block/FieldBlock.php

@@ -23,6 +23,7 @@ use Drupal\Core\Session\AccountInterface;
 use Drupal\Core\StringTranslation\TranslatableMarkup;
 use Psr\Log\LoggerInterface;
 use Symfony\Component\DependencyInjection\ContainerInterface;
+use Drupal\field\FieldLabelOptionsTrait;
 
 /**
  * Provides a block that renders a field from an entity.
@@ -37,6 +38,7 @@ use Symfony\Component\DependencyInjection\ContainerInterface;
  */
 class FieldBlock extends BlockBase implements ContextAwarePluginInterface, ContainerFactoryPluginInterface {
 
+  use FieldLabelOptionsTrait;
   /**
    * The entity field manager.
    *
@@ -251,15 +253,7 @@ class FieldBlock extends BlockBase implements ContextAwarePluginInterface, Conta
     $form['formatter']['label'] = [
       '#type' => 'select',
       '#title' => $this->t('Label'),
-      // @todo This is directly copied from
-      //   \Drupal\field_ui\Form\EntityViewDisplayEditForm::getFieldLabelOptions(),
-      //   resolve this in https://www.drupal.org/project/drupal/issues/2933924.
-      '#options' => [
-        'above' => $this->t('Above'),
-        'inline' => $this->t('Inline'),
-        'hidden' => '- ' . $this->t('Hidden') . ' -',
-        'visually_hidden' => '- ' . $this->t('Visually Hidden') . ' -',
-      ],
+      '#options' => $this->getFieldLabelOptions(),
       '#default_value' => $config['formatter']['label'],
     ];