public function IconSelectFormatterDefault::viewElements in Icon Select 8

Builds a renderable array for a field value.

Parameters

\Drupal\Core\Field\FieldItemListInterface $items: The field values to be rendered.

string $langcode: The language that should be used to render the field.

Return value

array A renderable array for $items, as an array of child elements keyed by consecutive numeric indexes starting from 0.

Overrides FormatterInterface::viewElements

File

src/Plugin/Field/FieldFormatter/IconSelectFormatterDefault.php, line 120

Class

IconSelectFormatterDefault

Plugin implementation of the icon_select_field text formatter.

Namespace

Drupal\icon_select\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $elements = [];
  $icons = $items
    ->referencedEntities();
  foreach ($icons as $delta => $icon) {

    /** @var \Drupal\Core\Template\Attribute $attributes */
    $attributes = new Attribute();
    if ($this
      ->getSetting('apply_dimensions')) {
      foreach ([
        'width',
        'height',
      ] as $attribute_key) {
        if (!empty($attribute_value = $this
          ->getSetting($attribute_key))) {
          $attributes[$attribute_key] = $attribute_value;
        }
      }
    }

    // Prepare classes.
    $attributes
      ->addClass('icon', 'icon--' . $icon->field_symbol_id->value);
    if ($icon->field_svg_file->entity) {
      $elements[$delta] = [
        '#theme' => 'icon_select_svg_icon',
        '#attributes' => $attributes,
        '#symbol_id' => $icon->field_symbol_id->value,
      ];
    }
  }

  // Attach css / js library.
  if (count($elements)) {
    $elements['#attached'] = [
      'library' => [
        'icon_select/drupal.icon_select',
      ],
    ];
  }
  return $elements;
}