ViewsBoundaryArgument.php in Geolocation Field 8.3

Namespace

Drupal\geolocation\Plugin\geolocation\MapCenter

File

src/Plugin/geolocation/MapCenter/ViewsBoundaryArgument.php

<?php

namespace Drupal\geolocation\Plugin\geolocation\MapCenter;

use Drupal\Core\Render\BubbleableMetadata;
use Drupal\geolocation\MapCenterInterface;
use Drupal\geolocation\MapCenterBase;
use Drupal\geolocation\ViewsContextTrait;

/**
 * Derive center from boundary filter.
 *
 * @MapCenter(
 *   id = "views_boundary_argument",
 *   name = @Translation("Boundary argument - boundaries"),
 *   description = @Translation("Fit map to boundary argument."),
 * )
 */
class ViewsBoundaryArgument extends MapCenterBase implements MapCenterInterface {
  use ViewsContextTrait;

  /**
   * {@inheritdoc}
   */
  public function getAvailableMapCenterOptions($context) {
    $options = [];
    if ($displayHandler = self::getViewsDisplayHandler($context)) {

      /** @var \Drupal\views\Plugin\views\HandlerBase $context */

      /** @var \Drupal\views\Plugin\views\argument\ArgumentPluginBase $argument */
      foreach ($displayHandler
        ->getHandlers('argument') as $argument_id => $argument) {
        if ($argument
          ->getPluginId() == 'geolocation_argument_boundary') {
          $options['boundary_argument_' . $argument_id] = $this
            ->t('Boundary argument') . ' - ' . $argument
            ->adminLabel();
        }
      }
    }
    return $options;
  }

  /**
   * {@inheritdoc}
   */
  public function alterMap(array $map, $center_option_id, array $center_option_settings, $context = NULL) {
    $map = parent::alterMap($map, $center_option_id, $center_option_settings, $context);
    if (!($displayHandler = self::getViewsDisplayHandler($context))) {
      return $map;
    }

    /** @var \Drupal\geolocation\Plugin\views\argument\BoundaryArgument $argument */
    $argument = $displayHandler
      ->getHandler('argument', substr($center_option_id, 18));
    if ($values = $argument
      ->getParsedBoundary()) {
      if (isset($values['lat_north_east']) && $values['lat_north_east'] !== "" && isset($values['lng_north_east']) && $values['lng_north_east'] !== "" && isset($values['lat_south_west']) && $values['lat_south_west'] !== "" && isset($values['lng_south_west']) && $values['lng_south_west'] !== "") {
        $map['#attached'] = BubbleableMetadata::mergeAttachments($map['#attached'], [
          'library' => [
            'geolocation/map_center.viewsBoundaryArgument',
          ],
          'drupalSettings' => [
            'geolocation' => [
              'maps' => [
                $map['#id'] => [
                  'map_center' => [
                    'views_boundary_argument' => [
                      'latNorthEast' => (double) $values['lat_north_east'],
                      'lngNorthEast' => (double) $values['lng_north_east'],
                      'latSouthWest' => (double) $values['lat_south_west'],
                      'lngSouthWest' => (double) $values['lng_south_west'],
                    ],
                  ],
                ],
              ],
            ],
          ],
        ]);
      }
    }
    return $map;
  }

}

Classes

Name	Description
ViewsBoundaryArgument	Derive center from boundary filter.