Chris@5: <?php
Chris@5: 
Chris@5: namespace Drupal\views_slideshow;
Chris@5: 
Chris@5: use Drupal\Core\Cache\CacheBackendInterface;
Chris@5: use Drupal\Core\Extension\ModuleHandlerInterface;
Chris@5: use Drupal\Core\Plugin\DefaultPluginManager;
Chris@5: 
Chris@5: /**
Chris@5:  * Manager for Views Slideshow Widget plugins.
Chris@5:  */
Chris@5: class ViewsSlideshowWidgetPluginManager extends DefaultPluginManager {
Chris@5: 
Chris@5:   /**
Chris@5:    * Constructs a new ViewsSlideshowWidgetPluginManager.
Chris@5:    *
Chris@5:    * @param \Traversable $namespaces
Chris@5:    *   An object that implements \Traversable which contains the root paths
Chris@5:    *   keyed by the corresponding namespace to look for plugin implementations.
Chris@5:    * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
Chris@5:    *   Cache backend instance to use.
Chris@5:    * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
Chris@5:    *   The module handler.
Chris@5:    */
Chris@5:   public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler) {
Chris@5:     parent::__construct('Plugin/ViewsSlideshowWidget', $namespaces, $module_handler, 'Drupal\views_slideshow\ViewsSlideshowWidgetInterface', 'Drupal\views_slideshow\Annotation\ViewsSlideshowWidget');
Chris@5:     $this->alterInfo('views_slideshow_widget_info');
Chris@5:     $this->setCacheBackend($cache_backend, 'views_slideshow_widget');
Chris@5:   }
Chris@5: 
Chris@5:   /**
Chris@5:    * Gets the definition of all or filtered plugins for this type.
Chris@5:    *
Chris@5:    * @param mixed $type
Chris@5:    *   A string or an array of types to filter on.
Chris@5:    *
Chris@5:    * @return mixed
Chris@5:    *   An array of plugin definitions. Keys are plugin IDs.
Chris@5:    */
Chris@5:   public function getDefinitions($type = NULL) {
Chris@5:     $definitions = parent::getDefinitions();
Chris@5: 
Chris@5:     // Filter widgets to keep only required types.
Chris@5:     if (!empty($type)) {
Chris@5:       foreach ($definitions as $widgetId => $widgetInfo) {
Chris@5:         if ((is_array($type) && !in_array($widgetInfo['type'], $type)) || (is_string($type) && $widgetInfo['type'] !== $type)) {
Chris@5:           unset($definitions[$widgetId]);
Chris@5:         }
Chris@5:       }
Chris@5:     }
Chris@5: 
Chris@5:     return $definitions;
Chris@5:   }
Chris@5: 
Chris@5: }