openlayers-8.x-4.x-dev/src/Plugin/Source/Stamen/Stamen.php

<?php

namespace Drupal\openlayers\Plugin\Source\Stamen;

use Drupal\openlayers\Types\Source;

/**
 * FIX - Insert short comment here.
 *
 * @OpenlayersPlugin(
 *   id = "ol_source_stamen",
 *   label = @Translation("Stamen"),
 *   description = @Translation("TODO..."),
 *   service = "openlayers.Source:Stamen",
 *   library = "openlayers-plugin-source-stamen",
 *   is_configurable = "true",
 *   type = "source"
 * )
 */
class Stamen extends Source {

  /**
   * {@inheritdoc}
   */
  public function optionsForm(array &$form, array &$form_state) {
    $form['options']['layer'] = array(
      '#title' => t('Source type'),
      '#type' => 'select',
      '#default_value' => $this->getOption('layer', 'osm'),
      '#options' => array(
        'terrain-labels' => 'Terrain labels',
        'watercolor' => 'Watercolor',
      ),
    );
  }

}