public function TextFormatter::viewElements in Heading field 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/TextFormatter.php, line 67

Class

TextFormatter

Plugin to format string & text fields as a heading.

Namespace

Drupal\heading\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $element = [];
  foreach ($items as $delta => $item) {

    // Do not print empty headings.
    if (empty($item->value)) {
      continue;
    }
    $element[$delta] = [
      '#theme' => 'heading',
      '#size' => $this
        ->getSetting('size'),
      '#text' => $item->value,
    ];
  }
  return $element;
}