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

<?php

namespace Drupal\geolocation_leaflet\Plugin\geolocation\MapFeature;

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

/**
 * Provides Tile Layer control element.
 */
#[MapFeature(
  id: 'leaflet_control_layer',
  name: new \Drupal\Core\StringTranslation\TranslatableMarkup('Map Control - Tile layer'),
  description: new \Drupal\Core\StringTranslation\TranslatableMarkup('Add button to change layers.'),
  type: 'leaflet'
)]
class LeafletControlLayer extends ControlCustomElementBase {

  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(),
      [
        'default_label' => 'Default',
        'tile_layer_providers' => [],
        'tile_providers_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;
    }

    $form['default_label'] = [
      '#type' => 'textfield',
      '#title' => $this->t('Default layer label'),
      '#description' => $this->t('Label for the layer in the control.'),
      '#default_value' => $settings['default_label'],
    ];
    $form['tile_layer_providers'] = [
      '#type' => 'details',
      '#title' => $this->t('Providers'),
    ];
    $providers = $this->getBaseMaps();
    $form['tile_providers_options'] = $this->getProviderOptionsForm($settings['tile_providers_options']);
    foreach ($providers as $provider => $variants) {
      $form['tile_layer_providers'][$provider] = [
        '#type' => 'details',
        '#title' => $provider,
      ];
      foreach ($variants as $key => $variant) {
        $form['tile_layer_providers'][$provider][$key]['checkbox'] = [
          '#type' => 'checkbox',
          '#title' => $variant,
          '#default_value' => $settings['tile_layer_providers'][$provider][$key]['checkbox'] ?? 0,
        ];
        $form['tile_layer_providers'][$provider][$key]['label'] = [
          '#type' => 'textfield',
          '#description' => $this->t('Label for the layer in the control.'),
          '#default_value' => $settings['tile_layer_providers'][$provider][$key]['label'] ?? '',
          '#states' => [
            'visible' => [
              ':input[name="' . $parents_string . '][tile_layer_providers][' . $provider . '][' . $key . '][checkbox]"]' => ['checked' => TRUE],
            ],
          ],
        ];
      }
      if (in_array($provider, $this->register)) {
        $states = [];
        foreach ($variants as $key => $variant) {
          $states[][':input[name="' . $parents_string . '][tile_layer_providers][' . $provider . '][' . $key . '][checkbox]"]'] = ['checked' => TRUE];
        }
        foreach ($form['tile_providers_options'][$provider] as $key => $value) {
          $form['tile_providers_options'][$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);

    $providers = [];
    foreach ($feature_settings['tile_layer_providers'] as $list) {
      foreach ($list as $variant => $values) {
        if ($values['checkbox']) {
          $index = str_replace(' ', '.', $variant);
          $providers[$index] = $values['label'];
        }
      }
    }

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

    return $render_array;
  }

}