TabRendererManager.php

<?php

namespace Drupal\quicktabs;

use Drupal\Core\Plugin\DefaultPluginManager;
use Drupal\Core\Cache\CacheBackendInterface;
use Drupal\Core\Extension\ModuleHandlerInterface;
use Drupal\Component\Plugin\Factory\DefaultFactory;

/**
 * Quick Tabs renderer plugin manager.
 */
class TabRendererManager extends DefaultPluginManager {
    
    /**
     * Construct a TabRendererManager object.
     *
     * @param \Traversable $namespaces
     *   An object that implements \Traversable which contains the root paths
     *    keyed by the corresponding namespace to look for plugin implementations.
     * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
     *   Cache backend instance to use.
     * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
     *   The module handler to invoke the later hook with.
     */
    public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler) {
        parent::__construct('Plugin/TabRenderer', $namespaces, $module_handler, 'Drupal\\quicktabs\\TabRendererInterface', 'Drupal\\quicktabs\\Annotation\\TabRenderer');
        $this->alterInfo('quicktabs_tab_renderer_info');
        $this->setCacheBackend($cache_backend, 'quicktabs_tab_renderers');
        $this->factory = new DefaultFactory($this->getDiscovery());
    }

}