Issue #3039580 by Rajeshreeputra, DeaOm: Add "Entity Clone" to In line editing Contextual Links

entity_clone.contextual_links:

  deriver: 'Drupal\entity_clone\Plugin\Derivative\EntityCloneContextualLinks'

  weight: 3

<?php

namespace Drupal\entity_clone\Plugin\Derivative;

use Drupal\Component\Plugin\Derivative\DeriverBase;

use Drupal\Core\Entity\EntityTypeManagerInterface;

use Drupal\Core\Plugin\Discovery\ContainerDeriverInterface;

use Drupal\Core\StringTranslation\TranslationManager;

use Symfony\Component\DependencyInjection\ContainerInterface;

/**

 * Class EntityCloneContextualLinks

 *

 * @package Drupal\entity_clone\Plugin\Derivative

 */

class EntityCloneContextualLinks extends DeriverBase implements ContainerDeriverInterface {

  /**

   * The entity type manager.

   *

   * @var \Drupal\Core\Entity\EntityTypeManagerInterface

   */

  protected $entityTypeManager;

  /**

   * The translation manager.

   *

   * @var \Drupal\Core\StringTranslation\TranslationManager

   */

  protected $translationManager;

  /**

   * Constructs a new EntityCloneContextualLinks.

   *

   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entityTypeManager

   *   The entity type manager.

   * @param \Drupal\Core\StringTranslation\TranslationManager $stringTranslation

   */

  public function __construct(EntityTypeManagerInterface $entityTypeManager, TranslationManager $stringTranslation) {

    $this->entityTypeManager = $entityTypeManager;

    $this->translationManager = $stringTranslation;

  }

  /**

   * {@inheritdoc}

   */

  public static function create(ContainerInterface $container, $base_plugin_id) {

    return new static(

      $container->get('entity_type.manager'),

      $container->get('string_translation')

    );

  }

  /**

   * {@inheritdoc}

   */

  public function getDerivativeDefinitions($base_plugin_definition) {

    // Create contextual links for entity clone.

    foreach ($this->entityTypeManager->getDefinitions() as $entity_type_id => $entity_type) {

      $this->derivatives["$entity_type_id.clone_tab"] = [

        'route_name' => "entity.$entity_type_id.clone_form",

        'title' => $this->translationManager->translate('Clone'),

        'group' => $entity_type_id,

      ];

    }

    return parent::getDerivativeDefinitions($base_plugin_definition);

  }

}