CreatableFormElementPropertiesValidator.php

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<?php
declare(strict_types = 1);
namespace TYPO3\CMS\Form\Domain\Configuration\FormDefinition\Validators;

/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */

use TYPO3\CMS\Form\Domain\Configuration\Exception\PropertyException;

class CreatableFormElementPropertiesValidator extends ElementBasedValidator
{

    public function __invoke(string $key, $value)
    {
        $dto = $this->validationDto->withPropertyPath($key);

        if (!$this->getConfigurationService()->isFormElementPropertyDefinedInFormEditorSetup($dto)) {
            if ($this->getConfigurationService()->isFormElementPropertyDefinedInPredefinedDefaultsInFormEditorSetup($dto)) {
                $predefinedDefaultValue = $this->getConfigurationService()->getFormElementPredefinedDefaultValueFromFormEditorSetup($dto);
                if ($value !== $predefinedDefaultValue) {
                    $message = 'The value "%s" of property "%s" (form element "%s") is not equal to the default value "%s" #1528588035';
                    throw new PropertyException(
                        sprintf(
                            $message,
                            $value,
                            $dto->getPropertyPath(),
                            $dto->getFormElementIdentifier(),
                            $predefinedDefaultValue
                        ),
                        1528588035
                    );
                }
            } else {
                $this->validateFormElementPropertyValueByHmacData(
                    $this->currentElement,
                    $value,
                    $this->sessionToken,
                    $dto
                );
            }
        }
    }
}