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<?php
namespace Drupal\Component\Plugin\Definition;
use Drupal\Component\Plugin\Context\ContextDefinitionInterface;
use Drupal\Component\Plugin\Exception\ContextException;
/**
* Provides a trait for context-aware object-based plugin definitions.
*/
trait ContextAwarePluginDefinitionTrait {
/**
* The context definitions for this plugin definition.
*
* @var \Drupal\Component\Plugin\Context\ContextDefinitionInterface[]
*/
protected $contextDefinitions = [];
/**
* Implements \Drupal\Component\Plugin\Definition\ContextAwarePluginDefinitionInterface::hasContextDefinition().
*/
public function hasContextDefinition($name) {
return array_key_exists($name, $this->contextDefinitions);
}
/**
* Implements \Drupal\Component\Plugin\Definition\ContextAwarePluginDefinitionInterface::getContextDefinitions().
*/
public function getContextDefinitions() {
return $this->contextDefinitions;
}
/**
* Implements \Drupal\Component\Plugin\Definition\ContextAwarePluginDefinitionInterface::getContextDefinition().
*/
public function getContextDefinition($name) {
if ($this->hasContextDefinition($name)) {
return $this->contextDefinitions[$name];
}
throw new ContextException($this->id() . " does not define a '$name' context");
}
/**
* Implements \Drupal\Component\Plugin\Definition\ContextAwarePluginDefinitionInterface::addContextDefinition().
*/
public function addContextDefinition($name, ContextDefinitionInterface $definition) {
$this->contextDefinitions[$name] = $definition;
return $this;
}
/**
* Implements \Drupal\Component\Plugin\Definition\ContextAwarePluginDefinitionInterface::removeContextDefinition().
*/
public function removeContextDefinition($name) {
unset($this->contextDefinitions[$name]);
return $this;
}
}