public static function WebformImageSelect::processSelect in Webform 8.5

Same name and namespace in other branches

1. 6.x modules/webform_image_select/src/Element/WebformImageSelect.php \Drupal\webform_image_select\Element\WebformImageSelect::processSelect()

Processes a select list form element.

This process callback is mandatory for select fields, since all user agents automatically preselect the first available option of single (non-multiple) select lists.

Parameters

array $element: The form element to process.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

array $complete_form: The complete form structure.

Return value

array The processed element.

Overrides Select::processSelect

See also

_form_validate()

File

modules/webform_image_select/src/Element/WebformImageSelect.php, line 38

Class

WebformImageSelect

Provides a webform element for a selecting an image.

Namespace

Drupal\webform_image_select\Element

Code

public static function processSelect(&$element, FormStateInterface $form_state, &$complete_form) {

  // Convert #images to #options.
  static::setOptions($element);

  // Set show label.
  if ($element['#show_label']) {
    $element['#attributes']['data-show-label'] = 'data-show-label';
  }

  // Add label filter.
  if ($element['#show_label'] && $element['#filter']) {
    $field_prefix = isset($element['#field_prefix']) ? $element['#field_prefix'] : NULL;
    $wrapper_class = 'js-' . Html::getClass($element['#name'] . '-filter');
    $element['#wrapper_attributes']['class'][] = $wrapper_class;
    $singular = !empty($element['#filter__singular']) ? $element['#filter__singular'] : t('image');
    $plural = !empty($element['#filter__plural']) ? $element['#filter__plural'] : t('images');
    $count = count($element['#images']);
    $element['#field_prefix'] = [
      'filter' => [
        '#type' => 'search',
        '#id' => $element['#id'] . '-filter',
        '#name' => $element['#name'] . '_filter',
        '#title' => t('Filter'),
        '#title_display' => 'invisible',
        '#size' => 30,
        '#placeholder' => !empty($element['#filter__placeholder']) ? $element['#filter__placeholder'] : t('Filter images by label'),
        '#attributes' => [
          'class' => [
            'webform-form-filter-text',
          ],
          'data-focus' => 'false',
          'data-item-singlular' => $singular,
          'data-item-plural' => $plural,
          'data-summary' => ".{$wrapper_class} .webform-image-select-summary",
          'data-no-results' => ".{$wrapper_class} .webform-image-select-no-results",
          'data-element' => ".{$wrapper_class} .thumbnails",
          'data-source' => ".thumbnail p",
          'data-parent' => 'li',
          'data-selected' => '.selected',
          'title' => t('Enter a keyword to filter by.'),
        ],
        '#wrapper_attributes' => [
          'class' => [
            'webform-image-select-filter',
          ],
        ],
        '#field_suffix' => [
          'info' => [
            '#type' => 'html_tag',
            '#tag' => 'span',
            '#attributes' => [
              'class' => [
                'webform-image-select-summary',
              ],
            ],
            'content' => [
              '#markup' => t('@count @items', [
                '@count' => $count,
                '@items' => $count === 1 ? $singular : $plural,
              ]),
            ],
          ],
          'no_results' => [
            '#type' => 'webform_message',
            '#attributes' => [
              'style' => 'display:none',
              'class' => [
                'webform-image-select-no-results',
              ],
            ],
            '#message_message' => !empty($element['#filter__no_results']) ? $element['#filter__no_results'] : t('No images found.'),
            '#message_type' => 'info',
          ],
        ],
      ],
    ];
    if ($field_prefix) {
      $element['#field_prefix']['field_prefix'] = is_array($element['#field_prefix']) ? $element['#field_prefix'] : [
        '#markup' => $element['#field_prefix'],
      ];
    }
  }

  // Serialize images as JSON to 'data-images' attributes.
  $element['#attributes']['data-images'] = Json::encode($element['#images']);

  // Add classes.
  $element['#attributes']['class'][] = 'webform-image-select';
  $element['#attributes']['class'][] = 'js-webform-image-select';

  // Attach library.
  $element['#attached']['library'][] = 'webform_image_select/webform_image_select.element';
  if ($element['#show_label'] && $element['#filter']) {
    $element['#attached']['library'][] = 'webform/webform.filter';
  }
  return parent::processSelect($element, $form_state, $complete_form);
}