ContentTranslationLocalTasks.php

<?php

namespace Drupal\content_translation\Plugin\Derivative;

use Drupal\content_translation\ContentTranslationManagerInterface;
use Drupal\Component\Plugin\Derivative\DeriverBase;
use Drupal\Core\Plugin\Discovery\ContainerDeriverInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Drupal\Core\StringTranslation\StringTranslationTrait;
use Drupal\Core\StringTranslation\TranslationInterface;

/**
 * Provides dynamic local tasks for content translation.
 */
class ContentTranslationLocalTasks extends DeriverBase implements ContainerDeriverInterface {
    use StringTranslationTrait;
    
    /**
     * The base plugin ID.
     *
     * @var string
     */
    protected $basePluginId;
    
    /**
     * The content translation manager.
     *
     * @var \Drupal\content_translation\ContentTranslationManagerInterface
     */
    protected $contentTranslationManager;
    
    /**
     * Constructs a new ContentTranslationLocalTasks.
     *
     * @param string $base_plugin_id
     *   The base plugin ID.
     * @param \Drupal\content_translation\ContentTranslationManagerInterface $content_translation_manager
     *   The content translation manager.
     * @param \Drupal\Core\StringTranslation\TranslationInterface $string_translation
     *   The translation manager.
     */
    public function __construct($base_plugin_id, ContentTranslationManagerInterface $content_translation_manager, TranslationInterface $string_translation) {
        $this->basePluginId = $base_plugin_id;
        $this->contentTranslationManager = $content_translation_manager;
        $this->stringTranslation = $string_translation;
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container, $base_plugin_id) {
        return new static($base_plugin_id, $container->get('content_translation.manager'), $container->get('string_translation'));
    }
    
    /**
     * {@inheritdoc}
     */
    public function getDerivativeDefinitions($base_plugin_definition) {
        // Create tabs for all possible entity types.
        foreach ($this->contentTranslationManager
            ->getSupportedEntityTypes() as $entity_type_id => $entity_type) {
            // Find the route name for the translation overview.
            $translation_route_name = "entity.{$entity_type_id}.content_translation_overview";
            $base_route_name = "entity.{$entity_type_id}.canonical";
            $this->derivatives[$translation_route_name] = [
                'entity_type' => $entity_type_id,
                'title' => $this->t('Translate'),
                'route_name' => $translation_route_name,
                'base_route' => $base_route_name,
            ] + $base_plugin_definition;
        }
        return parent::getDerivativeDefinitions($base_plugin_definition);
    }

}