CheckboxGroupJsonElement.php

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<?php
namespace TYPO3\CMS\Form\Domain\Model\Json;

class CheckboxGroupJsonElement extends \TYPO3\CMS\Form\Domain\Model\Json\FieldsetJsonElement {

    public $xtype = 'typo3-form-wizard-elements-predefined-checkboxgroup';

    public $configuration = array(
        'attributes' => array(),
        'legend' => array(
            'value' => ''
        ),
        'options' => array(),
        'various' => array(
            'name' => ''
        ),
        'validation' => array()
    );

    protected $allowedAttributes = array(
        'class',
        'dir',
        'id',
        'lang',
        'style'
    );

    public function setParameters(array $parameters) {
        parent::setParameters($parameters);
        $this->setOptions($parameters);
        $this->setVarious($parameters);
    }

    protected function setOptions(array $parameters) {
        if (is_array($parameters)) {
            $keys = \TYPO3\CMS\Core\TypoScript\TemplateService::sortedKeyList($parameters);
            foreach ($keys as $key) {
                $class = $parameters[$key];
                if ((int)$key && strpos($key, '.') === FALSE) {
                    if (isset($parameters[$key . '.']) && $class === 'CHECKBOX') {
                        $childElementArguments = $parameters[$key . '.'];
                        if (isset($childElementArguments['checked'])) {
                            $childElementArguments['attributes']['selected'] = 'selected';
                            unset($childElementArguments['checked']);
                        }
                        if (isset($childElementArguments['label.'])) {
                            $childElementArguments['data'] = $childElementArguments['label.']['value'];
                            unset($childElementArguments['label.']);
                        }
                        $this->configuration['options'][] = $childElementArguments;
                    }
                }
            }
        }
    }

    protected function setVarious(array $parameters) {
        if (isset($parameters['name'])) {
            $this->configuration['various']['name'] = $parameters['name'];
        }
    }

}