geolocation-8.x-3.x-dev/src/Plugin/geolocation/MapCenter/FixedBoundaries.php

<?php

namespace Drupal\geolocation\Plugin\geolocation\MapCenter;

use Drupal\geolocation\Attribute\MapCenter;
use Drupal\geolocation\MapCenterBase;
use Drupal\geolocation\MapCenterInterface;

/**
 * Fixed boundaries map center.
 */
#[MapCenter(
  id: 'fixed_boundaries',
  name: new \Drupal\Core\StringTranslation\TranslatableMarkup('Fixed boundaries'),
  description: new \Drupal\Core\StringTranslation\TranslatableMarkup('Fit map to preset boundaries.')
)]
class FixedBoundaries extends MapCenterBase implements MapCenterInterface {

  /**
   * {@inheritdoc}
   */
  public static function getDefaultSettings(): array {
    return [
      'north' => NULL,
      'east' => NULL,
      'south' => NULL,
      'west' => NULL,
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function getSettingsForm(?string $option_id = NULL, array $settings = [], array $context = []): array {
    $form = parent::getSettingsForm($option_id, $settings, $context);
    $form['north'] = [
      '#type' => 'number',
      '#title' => $this->t('Northern boundary.'),
      '#default_value' => $settings['north'],
      '#min' => -90,
      '#max' => 90,
      '#step' => 0.001,
    ];
    $form['east'] = [
      '#type' => 'number',
      '#title' => $this->t('Eastern boundary.'),
      '#default_value' => $settings['east'],
      '#min' => -180,
      '#max' => 180,
      '#step' => 0.001,
    ];
    $form['south'] = [
      '#type' => 'number',
      '#title' => $this->t('Southern boundary.'),
      '#default_value' => $settings['south'],
      '#min' => -90,
      '#max' => 90,
      '#step' => 0.001,
    ];
    $form['west'] = [
      '#type' => 'number',
      '#title' => $this->t('Western boundary.'),
      '#default_value' => $settings['west'],
      '#min' => -180,
      '#max' => 180,
      '#step' => 0.001,
    ];

    return $form;
  }

}