ToolbarItemDependencyConstraintValidator.php

<?php

declare (strict_types=1);
namespace Drupal\ckeditor5\Plugin\Validation\Constraint;

use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
use Symfony\Component\Validator\Exception\UnexpectedTypeException;

/**
 * Toolbar item dependency constraint validator.
 *
 * @internal
 */
class ToolbarItemDependencyConstraintValidator extends ConstraintValidator implements ContainerInjectionInterface {
    use PluginManagerDependentValidatorTrait;
    
    /**
     * {@inheritdoc}
     *
     * @throws \Symfony\Component\Validator\Exception\UnexpectedTypeException
     *   Thrown when the given constraint is not supported by this validator.
     */
    public function validate($toolbar_item, Constraint $constraint) : void {
        if (!$constraint instanceof ToolbarItemDependencyConstraint) {
            throw new UnexpectedTypeException($constraint, __NAMESPACE__ . '\\ToolbarItemDependency');
        }
        $toolbar_items = $this->context
            ->getRoot()
            ->get('settings.toolbar.items')
            ->toArray();
        if (!in_array($constraint->toolbarItem, $toolbar_items, TRUE)) {
            $this->context
                ->buildViolation($constraint->message)
                ->setParameter('%toolbar_item', $constraint->toolbarItem)
                ->addViolation();
        }
    }

}