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<?php
namespace Drupal\webform_image_select\Element;
use Drupal\Component\Utility\NestedArray;
use Drupal\Core\Render\Element\FormElement;
use Drupal\Core\Form\FormStateInterface;
use Drupal\webform\Element\WebformMessage;
use Drupal\webform\Utility\WebformElementHelper;
class WebformImageSelectImages extends FormElement {
public function getInfo() {
$class = get_class($this);
return [
'#input' => TRUE,
'#label' => t('image'),
'#labels' => t('images'),
'#min_items' => 3,
'#empty_items' => 1,
'#add_more_items' => 1,
'#process' => [
[
$class,
'processWebformImageSelectImages',
],
],
'#theme_wrappers' => [
'form_element',
],
];
}
public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
if ($input === FALSE) {
if (!isset($element['#default_value'])) {
return [];
}
return $element['#default_value'];
}
elseif (is_array($input) && isset($input['images'])) {
return $input['images'];
}
else {
return NULL;
}
}
public static function processWebformImageSelectImages(&$element, FormStateInterface $form_state, &$complete_form) {
$element['#tree'] = TRUE;
$element['#element_validate'] = [
[
get_called_class(),
'validateWebformImageSelectImages',
],
];
WebformElementHelper::fixStatesWrapper($element);
$properties = [
'#label',
'#labels',
'#min_items',
'#empty_items',
'#add_more_items',
];
$element['images'] = array_intersect_key($element, array_combine($properties, $properties)) + [
'#type' => 'webform_multiple',
'#key' => 'value',
'#header' => [
[
'data' => t('Image value'),
'width' => '25%',
],
[
'data' => t('Image text'),
'width' => '25%',
],
[
'data' => t('Image src'),
'width' => '50%',
],
],
'#element' => [
'value' => [
'#type' => 'textfield',
'#title' => t('Image value'),
'#title_display' => 'invisible',
'#placeholder' => t('Enter value…'),
'#error_no_message' => TRUE,
'#attributes' => [
'class' => [
'js-webform-options-sync',
],
],
],
'text' => [
'#type' => 'textfield',
'#title' => t('Image text'),
'#title_display' => 'invisible',
'#placeholder' => t('Enter text…'),
'#error_no_message' => TRUE,
],
'src' => [
'#type' => 'textfield',
'#title' => t('Image src'),
'#title_display' => 'invisible',
'#placeholder' => t('Enter image src…'),
'#error_no_message' => TRUE,
],
],
'#error_no_message' => TRUE,
'#add_more_input_label' => t('more images'),
'#default_value' => isset($element['#default_value']) ? $element['#default_value'] : [],
];
if (function_exists('imce_process_url_element')) {
$src_element =& $element['images']['#element']['src'];
imce_process_url_element($src_element, 'link');
$element['#attached']['library'][] = 'webform/imce.input';
}
elseif (\Drupal::currentUser()
->hasPermission('administer modules')) {
$element['imce_message'] = [
'#type' => 'webform_message',
'#message_type' => 'warning',
'#message_message' => t('Install the <a href=":href">IMCE module</a> to manage and uploaded image files.', [
':href' => 'https://www.drupal.org/project/imce',
]),
'#message_close' => TRUE,
'#message_id' => 'webform_imce_message',
'#message_storage' => WebformMessage::STORAGE_LOCAL,
];
}
$element['#attached']['library'][] = 'webform/webform.element.options.admin';
return $element;
}
public static function validateWebformImageSelectImages(&$element, FormStateInterface $form_state, &$complete_form) {
$options = NestedArray::getValue($form_state
->getValues(), $element['images']['#parents']);
if (!empty($element['#required']) && empty($options)) {
WebformElementHelper::setRequiredError($element, $form_state);
return;
}
$form_state
->setValueForElement($element, $options);
}
}