public function YamapsDefaultFormatter::viewElements in Yandex.Maps 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/YamapsDefaultFormatter.php, line 26

Class

YamapsDefaultFormatter

Plugin implementation of the 'yamaps' formatter.

Namespace

Drupal\yamaps\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  $elements = [];
  $map_behaviors = [];
  if ($this
    ->getSetting('enable_zoom')) {
    $map_behaviors[] = 'scrollZoom';
    $map_behaviors[] = 'dblClickZoom';
  }
  if ($this
    ->getSetting('enable_drag')) {
    $map_behaviors[] = 'drag';
  }
  foreach ($items as $delta => $item) {
    $map_id = Html::getUniqueId($items
      ->getName() . '-' . $delta);

    // Map information.
    $default_js = yamaps_format_values_to_js($item);

    // Map initialization parameters.
    $map = [
      'init' => [
        'center' => $default_js['coords']['center'] ?? NULL,
        'zoom' => $default_js['coords']['zoom'] ?? NULL,
        'type' => 'yandex#map',
        'behaviors' => $map_behaviors,
      ],
      'display_options' => [
        'display_type' => 'map',
        'width' => $this
          ->getSetting('width'),
        'height' => $this
          ->getSetting('height'),
      ],
      'controls' => 1,
      'placemarks' => $this
        ->getFieldSetting('enable_placemarks') ? $default_js['placemarks'] : [],
      'lines' => $this
        ->getFieldSetting('enable_lines') ? $default_js['lines'] : [],
      'polygons' => $this
        ->getFieldSetting('enable_polygons') ? $default_js['polygons'] : [],
      'edit' => FALSE,
    ];
    $element = [
      '#theme' => 'yamaps_field_formatter',
      '#width' => $this
        ->getSetting('width'),
      '#height' => $this
        ->getSetting('height'),
      '#map_id' => $map_id,
    ];
    $elements['#attached']['drupalSettings']['yamaps'][$map_id] = $map;
    $elements[$delta] = $element;
  }
  $elements['#attached']['library'][] = 'yamaps/yandex-map-api';
  if ($this
    ->getFieldSetting('enable_placemarks')) {
    $elements['#attached']['library'][] = 'yamaps/yamaps-placemark';
  }
  if ($this
    ->getFieldSetting('enable_lines')) {
    $elements['#attached']['library'][] = 'yamaps/yamaps-line';
  }
  if ($this
    ->getFieldSetting('enable_polygons')) {
    $elements['#attached']['library'][] = 'yamaps/yamaps-polygon';
  }
  $elements['#attached']['library'][] = 'yamaps/yamaps-map';
  return $elements;
}