annotate core/lib/Drupal/Core/Condition/ConditionPluginBase.php @ 19:fa3358dc1485 tip

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<?php

namespace Drupal\Core\Condition;

use Drupal\Core\Executable\ExecutableManagerInterface;
use Drupal\Core\Executable\ExecutablePluginBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Form\SubformStateInterface;
use Drupal\Core\Plugin\ContextAwarePluginAssignmentTrait;

/**
 * Provides a basis for fulfilling contexts for condition plugins.
 *
 * @see \Drupal\Core\Condition\Annotation\Condition
 * @see \Drupal\Core\Condition\ConditionInterface
 * @see \Drupal\Core\Condition\ConditionManager
 *
 * @ingroup plugin_api
 */
abstract class ConditionPluginBase extends ExecutablePluginBase implements ConditionInterface {

  use ContextAwarePluginAssignmentTrait;

  /**
   * The condition manager to proxy execute calls through.
   *
   * @var \Drupal\Core\Executable\ExecutableInterface
   */
  protected $executableManager;

  /**
   * {@inheritdoc}
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);

    $this->setConfiguration($configuration);
  }

  /**
   * {@inheritdoc}
   */
  public function isNegated() {
    return !empty($this->configuration['negate']);
  }

  /**
   * {@inheritdoc}
   */
  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
    if ($form_state instanceof SubformStateInterface) {
      $form_state = $form_state->getCompleteFormState();
    }
    $contexts = $form_state->getTemporaryValue('gathered_contexts') ?: [];
    $form['context_mapping'] = $this->addContextAssignmentElement($this, $contexts);
    $form['negate'] = [
      '#type' => 'checkbox',
      '#title' => $this->t('Negate the condition'),
      '#default_value' => $this->configuration['negate'],
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function validateConfigurationForm(array &$form, FormStateInterface $form_state) {
  }

  /**
   * {@inheritdoc}
   */
  public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
    $this->configuration['negate'] = $form_state->getValue('negate');
    if ($form_state->hasValue('context_mapping')) {
      $this->setContextMapping($form_state->getValue('context_mapping'));
    }
  }

  /**
   * {@inheritdoc}
   */
  public function execute() {
    return $this->executableManager->execute($this);
  }

  /**
   * {@inheritdoc}
   */
  public function getConfiguration() {
    return [
      'id' => $this->getPluginId(),
    ] + $this->configuration;
  }

  /**
   * {@inheritdoc}
   */
  public function setConfiguration(array $configuration) {
    $this->configuration = $configuration + $this->defaultConfiguration();
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return [
      'negate' => FALSE,
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function calculateDependencies() {
    return [];
  }

  /**
   * {@inheritdoc}
   */
  public function setExecutableManager(ExecutableManagerInterface $executableManager) {
    $this->executableManager = $executableManager;
    return $this;
  }

}