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<?php
namespace Drupal\Core\Plugin;
use Drupal\Core\Extension\ModuleHandlerInterface;
use Drupal\Core\Plugin\Context\ContextAwarePluginManagerTrait;
use Drupal\Core\Theme\ThemeManagerInterface;
/**
* Provides a trait for plugin managers that allow filtering plugin definitions.
*/
trait FilteredPluginManagerTrait {
use ContextAwarePluginManagerTrait;
/**
* Implements \Drupal\Core\Plugin\FilteredPluginManagerInterface::getFilteredDefinitions().
*/
public function getFilteredDefinitions($consumer, $contexts = NULL, array $extra = []) {
if (!is_null($contexts)) {
$definitions = $this->getDefinitionsForContexts($contexts);
}
else {
$definitions = $this->getDefinitions();
}
$type = $this->getType();
$hooks = [];
$hooks[] = "plugin_filter_{$type}";
$hooks[] = "plugin_filter_{$type}__{$consumer}";
$this->moduleHandler()->alter($hooks, $definitions, $extra, $consumer);
$this->themeManager()->alter($hooks, $definitions, $extra, $consumer);
return $definitions;
}
/**
* A string identifying the plugin type.
*
* This string should be unique and generally will correspond to the string
* used by the discovery, e.g. the annotation class or the YAML file name.
*
* @return string
* A string identifying the plugin type.
*/
abstract protected function getType();
/**
* Wraps the module handler.
*
* @return \Drupal\Core\Extension\ModuleHandlerInterface
* The module handler.
*/
protected function moduleHandler() {
if (property_exists($this, 'moduleHandler') && $this->moduleHandler instanceof ModuleHandlerInterface) {
return $this->moduleHandler;
}
return \Drupal::service('module_handler');
}
/**
* Wraps the theme manager.
*
* @return \Drupal\Core\Theme\ThemeManagerInterface
* The theme manager.
*/
protected function themeManager() {
if (property_exists($this, 'themeManager') && $this->themeManager instanceof ThemeManagerInterface) {
return $this->themeManager;
}
return \Drupal::service('theme.manager');
}
}