public function GeolocationMapFormatterBase::viewElements in Geolocation Field 8.3

Same name and namespace in other branches

1. 8.2 src/Plugin/Field/FieldFormatter/GeolocationMapFormatterBase.php \Drupal\geolocation\Plugin\Field\FieldFormatter\GeolocationMapFormatterBase::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/GeolocationMapFormatterBase.php, line 320

Class

GeolocationMapFormatterBase

Plugin base for Map based formatters.

Namespace

Drupal\geolocation\Plugin\Field\FieldFormatter

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
  if ($items
    ->count() == 0) {
    return [];
  }
  $elements = [];
  $settings = $this
    ->getSettings();
  $locations = $this
    ->getLocations($items);
  $parent_entity = $items
    ->getEntity();
  $element_pattern = [
    '#type' => 'geolocation_map',
    '#settings' => $settings['map_provider_settings'],
    '#maptype' => $settings['map_provider_id'],
    '#centre' => [],
    '#context' => [
      'formatter' => $this,
    ],
  ];
  if (!empty($parent_entity)) {
    $element_pattern['#context'][$parent_entity
      ->getEntityTypeId()] = $parent_entity;
  }
  if (!empty($settings['common_map'])) {
    $elements = [
      0 => $element_pattern,
    ];
    $elements[0]['#id'] = uniqid("map-");
    foreach ($locations as $delta => $location) {
      if (!empty($settings['show_delta_label'])) {
        $location['#label'] = $delta + 1;
      }
      $elements[0][$delta] = $location;
    }
    $elements[0] = $this->mapCenterManager
      ->alterMap($elements[0], $settings['centre'], [
      'formatter' => $this,
    ]);
  }
  else {
    foreach ($locations as $delta => $location) {
      $elements[$delta] = $element_pattern;
      $elements[$delta]['#id'] = uniqid("map-" . $delta . "-");
      $elements[$delta]['content'] = $location;
      $elements[$delta] = $this->mapCenterManager
        ->alterMap($elements[$delta], $settings['centre'], [
        'formatter' => $this,
      ]);
    }
  }
  if ($settings['use_overridden_map_settings'] && !empty($items
    ->get(0)) && !empty($items
    ->get(0)
    ->getValue()['data']['map_provider_settings']) && is_array($items
    ->get(0)
    ->getValue()['data']['map_provider_settings'])) {
    $map_settings = $this->mapProvider
      ->getSettings($items
      ->get(0)
      ->getValue()['data']['map_provider_settings']);
    if (!empty($settings['common_map'])) {
      $elements[0]['#settings'] = $map_settings;
    }
    else {
      foreach (Element::children($elements) as $delta => $element) {
        $elements[$delta]['#settings'] = $map_settings;
      }
    }
  }
  return $elements;
}