public function Barcode::viewElements in Barcodes 8

Same name and namespace in other branches

1. 2.0.x src/Plugin/Field/FieldFormatter/Barcode.php \Drupal\barcodes\Plugin\Field\FieldFormatter\Barcode::viewElements()

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/Barcode.php, line 146

Class

Barcode

Plugin implementation of the 'barcode' formatter.

Namespace

Drupal\barcodes\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $elements = [];
  $token_service = \Drupal::token();
  $generator = new BarcodeGenerator();
  foreach ($items as $delta => $item) {
    $suffix = str_replace('+', 'plus', strtolower($this
      ->getSetting('type')));
    $tokens = [];
    if ($entity = $items
      ->getEntity()) {
      $tokens[$entity
        ->getEntityTypeId()] = $entity;
    }
    $value = $token_service
      ->replace($this
      ->viewValue($item), $tokens);
    $elements[$delta] = [
      '#theme' => 'barcode__' . $suffix,
      '#attached' => [
        'library' => [
          'barcodes/' . $suffix,
        ],
      ],
      '#type' => $this
        ->getSetting('type'),
      '#value' => $value,
      '#width' => $this
        ->getSetting('width'),
      '#height' => $this
        ->getSetting('height'),
      '#color' => $this
        ->getSetting('color'),
      '#padding_top' => $this
        ->getSetting('padding_top'),
      '#padding_right' => $this
        ->getSetting('padding_right'),
      '#padding_bottom' => $this
        ->getSetting('padding_bottom'),
      '#padding_left' => $this
        ->getSetting('padding_left'),
      '#show_value' => $this
        ->getSetting('show_value'),
    ];
    try {
      $barcode = $generator
        ->getBarcodeObj($this
        ->getSetting('type'), $value, $this
        ->getSetting('width'), $this
        ->getSetting('height'), $this
        ->getSetting('color'), [
        $this
          ->getSetting('padding-top'),
        $this
          ->getSetting('padding-right'),
        $this
          ->getSetting('padding-bottom'),
        $this
          ->getSetting('padding-left'),
      ]);
      $elements[$delta]['#format'] = $this
        ->getSetting('format');
      $elements[$delta]['#svg'] = $barcode
        ->getSvgCode();
      $elements[$delta]['#png'] = "<img alt=\"Embedded Image\" src=\"data:image/png;base64," . base64_encode($barcode
        ->getPngData()) . "\" />";
      $elements[$delta]['#htmldiv'] = $barcode
        ->getHtmlDiv();
      $elements[$delta]['#unicode'] = "<pre style=\"font-family:monospace;line-height:0.61em;font-size:6px;\">" . $barcode
        ->getGrid(json_decode('"\\u00A0"'), json_decode('"\\u2584"')) . "</pre>";
      $elements[$delta]['#binary'] = "<pre style=\"font-family:monospace;\">" . $barcode
        ->getGrid() . "</pre>";
      $elements[$delta]['#barcode'] = $elements[$delta]['#' . strtolower($this
        ->getSetting('format'))];
      $elements[$delta]['#extended_value'] = $barcode
        ->getExtendedCode();
    } catch (\Exception $e) {

      /** @var \Drupal\Core\Logger\LoggerChannelInterface $logger */
      $logger = \Drupal::service('logger.factory')
        ->get('barcodes');
      $logger
        ->error('Error: @error, given: @value', [
        '@error' => $e
          ->getMessage(),
        '@value' => $this
          ->viewValue($item),
      ]);
    }
  }
  return $elements;
}