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<?php
namespace Drupal\webform_image_select\Element;
use Drupal\Component\Utility\NestedArray;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Render\Element;
use Drupal\Core\Render\Element\FormElement;
use Drupal\Core\Url;
use Drupal\webform\Entity\WebformOptions as WebformOptionsEntity;
use Drupal\webform\Utility\WebformElementHelper;
use Drupal\webform\Utility\WebformFormHelper;
class WebformImageSelectElementImages extends FormElement {
const CUSTOM_OPTION = '';
public function getInfo() {
$class = get_class($this);
return [
'#input' => TRUE,
'#process' => [
[
$class,
'processWebformImageSelectElementImages',
],
[
$class,
'processAjaxForm',
],
],
'#theme_wrappers' => [
'form_element',
],
];
}
public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
if ($input === FALSE) {
if (isset($element['#default_value'])) {
if (is_string($element['#default_value'])) {
return WebformOptionsEntity::load($element['#default_value']) ? $element['#default_value'] : [];
}
else {
return $element['#default_value'];
}
}
else {
return [];
}
}
elseif (!empty($input['images'])) {
return $input['images'];
}
elseif (isset($input['custom']['images'])) {
return $input['custom']['images'];
}
else {
return [];
}
}
public static function processWebformImageSelectElementImages(&$element, FormStateInterface $form_state, &$complete_form) {
$element['#tree'] = TRUE;
$webform_images_storage = \Drupal::entityTypeManager()
->getStorage('webform_image_select_images');
$webform_images = $webform_images_storage
->getImages();
$t_args = [
':href' => Url::fromRoute('entity.webform_image_select_images.collection')
->toString(),
];
$class_name = 'js-' . $element['#id'] . '-webform-image-select-images';
$element['images'] = [
'#type' => 'select',
'#description' => t('Please select <a href=":href">predefined images</a> or enter custom image.', $t_args),
'#options' => [
static::CUSTOM_OPTION => t('Custom images…'),
] + $webform_images,
'#attributes' => [
'class' => [
$class_name,
],
],
'#error_no_message' => TRUE,
'#access' => count($webform_images) ? TRUE : FALSE,
'#default_value' => isset($element['#default_value']) && !is_array($element['#default_value']) ? $element['#default_value'] : '',
];
$element['custom'] = [
'#type' => 'webform_image_select_images',
'#title' => $element['#title'],
'#title_display' => 'invisible',
'#states' => [
'visible' => [
"select.{$class_name}" => [
'value' => '',
],
],
],
'#error_no_message' => TRUE,
'#default_value' => isset($element['#default_value']) && !is_string($element['#default_value']) ? $element['#default_value'] : [],
];
$element['#element_validate'] = [
[
get_called_class(),
'validateWebformImageSelectElementImages',
],
];
if (!empty($element['#states'])) {
WebformFormHelper::processStates($element, '#wrapper_attributes');
}
return $element;
}
public static function validateWebformImageSelectElementImages(&$element, FormStateInterface $form_state, &$complete_form) {
$options_value = NestedArray::getValue($form_state
->getValues(), $element['images']['#parents']);
$custom_value = NestedArray::getValue($form_state
->getValues(), $element['custom']['#parents']);
$value = $options_value;
if ($options_value === static::CUSTOM_OPTION) {
$value = $custom_value;
}
if (Element::isVisibleElement($element) && $element['#required'] && empty($value)) {
WebformElementHelper::setRequiredError($element, $form_state);
}
$form_state
->setValueForElement($element['images'], NULL);
$form_state
->setValueForElement($element['custom'], NULL);
$form_state
->setValueForElement($element, $value);
}
}