function template_preprocess_nice_imagefield_widget_multiple in Nice ImageField Widget 8

Prepares variables for multi file form widget templates.

Default template: nice-imagefield-widget-multiple.html.twig.

Parameters

array $variables: An associative array containing:

• element: A render element representing the widgets.

File

./nice_imagefield_widget.field.inc, line 21

Field module functionality for the Nice ImageField Widget module.

Code

function template_preprocess_nice_imagefield_widget_multiple(&$variables) {
  $element = $variables['element'];

  // Special ID and classes for draggable tables.
  $weight_class = $element['#id'] . '-weight';
  $sortable_id = $element['#id'] . '-sortable';

  // Get our list of widgets in order (needed when the form comes back after
  // preview or failed validation).
  $widgets = array();
  foreach (Element::children($element) as $key) {
    $widgets[] =& $element[$key];
  }
  usort($widgets, '_field_multiple_value_form_sort_helper');
  $rows = array();
  foreach ($widgets as $key => &$widget) {

    // TODO: need try to optimize.
    $imageStyle = ImageStyle::load($widget['#preview_image_style'])
      ->getEffects();
    $effects = array();
    foreach ($imageStyle
      ->getInstanceIds() as $effect) {
      $effects[] = $effect;
    }
    $summary = $imageStyle
      ->get(end($effects))
      ->getSummary();
    $attributes = new Attribute(array(
      'style' => 'height:' . $summary['#data']['height'] . 'px; width:' . $summary['#data']['width'] . 'px;',
    ));

    // Save the uploading row for last.
    if (empty($widget['#files'])) {
      $widget['#title'] = $element['#file_upload_title'];
      $widget['#description'] = \Drupal::service('renderer')
        ->renderPlain($element['#file_upload_description']);
      continue;
    }

    // Delay rendering of the buttons, so that they can be rendered later in the
    // "operations" column.
    $operations_elements = array();
    foreach (Element::children($widget) as $sub_key) {
      if (isset($widget[$sub_key]['#type']) && $widget[$sub_key]['#type'] == 'submit') {
        hide($widget[$sub_key]);
        $operations_elements[] =& $widget[$sub_key];
      }
    }
    hide($widget['_weight']);

    // Render everything else together in a column, without the normal wrappers.
    $widget['#theme_wrappers'] = array();
    $preview = \Drupal::service('renderer')
      ->render($widget['preview'], FALSE);
    $widget['_weight']['#attributes']['class'] = array(
      $weight_class,
    );
    unset($widget['preview']);
    $widget['actions'] = array(
      '#type' => 'container',
      '#attributes' => array(
        'class' => array(
          'operations',
        ),
      ),
      '#weight' => 100,
    );
    $widget['actions']['ok'] = array(
      '#type' => 'button',
      '#value' => t('Ok'),
      '#attributes' => array(
        'class' => array(
          'flip-button',
          'flip-front',
        ),
      ),
    );
    $widget['title']['#attributes']['title'] = $widget['title']['#description'];
    unset($widget['title']['#description']);
    $widget['alt']['#attributes']['title'] = $widget['alt']['#description'];
    unset($widget['alt']['#description']);
    $edit = render($widget);

    // Arrange the row with all of the rendered columns.
    $row = array();
    $row['preview'] = $preview;
    $row['edit'] = $edit;
    $row['weight'] = render($widget['_weight']);

    // Show the buttons that had previously been marked as hidden in this
    // pre-process function. We use show() to undo the earlier hide().
    foreach (Element::children($operations_elements) as $key) {
      show($operations_elements[$key]);
    }
    $operations_elements[] = array(
      '#type' => 'button',
      '#value' => t('Edit'),
      '#attributes' => array(
        'class' => array(
          'flip-button',
          'flip-back',
        ),
      ),
    );
    $row['operations'] = $operations_elements;
    $row['attributes'] = $attributes;
    $rows[] = $row;
  }
  $variables['id'] = $sortable_id;
  $variables['items'] = $rows;
  $variables['element'] = $element;
}