ConstraintConditionInterface.php

<?php

namespace Drupal\ctools;


/**
 * Interface for Constraint Conditions
 */
interface ConstraintConditionInterface {
    
    /**
     * Applies relevant constraints for this condition to the injected contexts.
     *
     * @param \Drupal\Core\Plugin\Context\ContextInterface[] $contexts
     *   Contexts to apply.
     */
    public function applyConstraints(array $contexts = []);
    
    /**
     * Removes constraints for this condition from the injected contexts.
     *
     * @param \Drupal\Core\Plugin\Context\ContextInterface[] $contexts
     *   Contexts to remove.
     */
    public function removeConstraints(array $contexts = []);

}