Chris@0: <?php
Chris@0: 
Chris@0: /**
Chris@0:  * @file
Chris@0:  * Implement an image field, based on the file module's file field.
Chris@0:  */
Chris@0: 
Chris@0: use Drupal\Core\Render\Element;
Chris@0: 
Chris@0: /**
Chris@0:  * Prepares variables for image widget templates.
Chris@0:  *
Chris@0:  * Default template: image-widget.html.twig.
Chris@0:  *
Chris@0:  * @param array $variables
Chris@0:  *   An associative array containing:
Chris@0:  *   - element: A render element representing the image field widget.
Chris@0:  */
Chris@0: function template_preprocess_image_widget(&$variables) {
Chris@0:   $element = $variables['element'];
Chris@0: 
Chris@0:   $variables['attributes'] = ['class' => ['image-widget', 'js-form-managed-file', 'form-managed-file', 'clearfix']];
Chris@0: 
Chris@0:   if (!empty($element['fids']['#value'])) {
Chris@0:     $file = reset($element['#files']);
Chris@0:     $element['file_' . $file->id()]['filename']['#suffix'] = ' <span class="file-size">(' . format_size($file->getSize()) . ')</span> ';
Chris@0:   }
Chris@0: 
Chris@0:   $variables['data'] = [];
Chris@0:   foreach (Element::children($element) as $child) {
Chris@0:     $variables['data'][$child] = $element[$child];
Chris@0:   }
Chris@0: 
Chris@0: }
Chris@0: 
Chris@0: /**
Chris@0:  * Prepares variables for image formatter templates.
Chris@0:  *
Chris@0:  * Default template: image-formatter.html.twig.
Chris@0:  *
Chris@0:  * @param array $variables
Chris@0:  *   An associative array containing:
Chris@0:  *   - item: An ImageItem object.
Chris@0:  *   - item_attributes: An optional associative array of html attributes to be
Chris@0:  *     placed in the img tag.
Chris@0:  *   - image_style: An optional image style.
Chris@0:  *   - url: An optional \Drupal\Core\Url object.
Chris@0:  */
Chris@0: function template_preprocess_image_formatter(&$variables) {
Chris@0:   if ($variables['image_style']) {
Chris@0:     $variables['image'] = [
Chris@0:       '#theme' => 'image_style',
Chris@0:       '#style_name' => $variables['image_style'],
Chris@0:     ];
Chris@0:   }
Chris@0:   else {
Chris@0:     $variables['image'] = [
Chris@0:       '#theme' => 'image',
Chris@0:     ];
Chris@0:   }
Chris@0:   $variables['image']['#attributes'] = $variables['item_attributes'];
Chris@0: 
Chris@0:   $item = $variables['item'];
Chris@0: 
Chris@0:   // Do not output an empty 'title' attribute.
Chris@17:   if (mb_strlen($item->title) != 0) {
Chris@0:     $variables['image']['#title'] = $item->title;
Chris@0:   }
Chris@0: 
Chris@0:   if (($entity = $item->entity) && empty($item->uri)) {
Chris@0:     $variables['image']['#uri'] = $entity->getFileUri();
Chris@0:   }
Chris@0:   else {
Chris@0:     $variables['image']['#uri'] = $item->uri;
Chris@0:   }
Chris@0: 
Chris@0:   foreach (['width', 'height', 'alt'] as $key) {
Chris@0:     $variables['image']["#$key"] = $item->$key;
Chris@0:   }
Chris@0: }