geolocation-8.x-3.x-dev/modules/geolocation_leaflet/src/Plugin/geolocation/MapFeature/LeafletTileLayer.php

<?php

namespace Drupal\geolocation_leaflet\Plugin\geolocation\MapFeature;

use Drupal\geolocation\Attribute\MapFeature;
use Drupal\Core\Render\BubbleableMetadata;
use Drupal\geolocation\MapFeatureBase;
use Drupal\geolocation\MapProviderInterface;
use Drupal\geolocation_leaflet\LeafletTileLayerProviders;

/**
 * Provides map tile layer support.
 */
#[MapFeature(
  id: 'leaflet_tile_layer',
  name: new \Drupal\Core\StringTranslation\TranslatableMarkup('Tile Layer - Providers'),
  description: new \Drupal\Core\StringTranslation\TranslatableMarkup('Select a map tile layer.'),
  type: 'leaflet'
)]
class LeafletTileLayer extends MapFeatureBase {

  use LeafletTileLayerProviders;

  /**
   * {@inheritdoc}
   */
  protected array $scripts = [
    'https://cdnjs.cloudflare.com/ajax/libs/leaflet-providers/1.13.0/leaflet-providers.min.js',
  ];

  /**
   * {@inheritdoc}
   */
  public static function getDefaultSettings(): array {
    return array_replace_recursive(
      parent::getDefaultSettings(),
      [
        'tile_layer_provider' => 'OpenStreetMap Mapnik',
        'tile_provider_options' => [],
      ]
    );
  }

  /**
   * {@inheritdoc}
   */
  public function getSettingsForm(array $settings, array $parents = [], ?MapProviderInterface $mapProvider = NULL): array {
    $form = parent::getSettingsForm($settings, $parents, $mapProvider);

    if ($parents) {
      $first = array_shift($parents);
      $parents_string = $first . '[' . implode('][', $parents);
    }
    else {
      $parents_string = NULL;
    }

    $providers = $this->getBaseMaps();
    $form['tile_layer_provider'] = [
      '#type' => 'select',
      '#options' => $providers,
      '#default_value' => $settings['tile_layer_provider'],
    ];

    $form['tile_provider_options'] = $this->getProviderOptionsForm($settings['tile_provider_options']);
    foreach ($this->register as $provider) {
      $states = [];
      foreach ($providers[$provider] as $key => $variant) {
        $states[][':input[name="' . $parents_string . '][tile_layer_provider]"]'] = ['value' => $key];
      }
      foreach ($form['tile_provider_options'][$provider] as $key => $value) {
        $form['tile_provider_options'][$provider][$key]['#states']['visible'] = $states;
      }
    }

    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function alterMap(array $render_array, array $feature_settings = [], array $context = [], ?MapProviderInterface $mapProvider = NULL): array {
    $render_array = parent::alterMap($render_array, $feature_settings, $context, $mapProvider);

    $tileLayer = [
      'tileLayerProvider' => str_replace(' ', '.', $feature_settings['tile_layer_provider']),
    ];

    $provider = explode('.', $feature_settings['tile_layer_provider'])[0];
    if (isset($feature_settings['tile_provider_options'][$provider])) {
      $tileLayer['tile_provider_options'] = $feature_settings['tile_provider_options'][$provider];
    }

    $render_array['#attached'] = BubbleableMetadata::mergeAttachments(
      $render_array['#attached'] ?? [],
      [
        'drupalSettings' => [
          'geolocation' => [
            'maps' => [
              $render_array['#id'] => [
                $this->getPluginId() => $tileLayer,
              ],
            ],
          ],
        ],
      ]
    );

    return $render_array;
  }

}