repeat_mapbox.module

<?php

/**
 * @file
 * Provides map related functionality.
 */

declare(strict_types = 1);

use Drupal\Component\Utility\Html;
use Drupal\Core\Link;
use Drupal\views\ViewExecutable;
use Drupal\views\Views;

/**
 * Implements hook_preprocess_HOOK().
 */
function repeat_mapbox_preprocess_paragraph(array &$vars): void {
  /** @var \Drupal\paragraphs\Entity\Paragraph $paragraph */
  $paragraph = $vars['paragraph'];
  if ($paragraph->getType() === 'mapbox_map') {
    $config = Drupal::config('repeat_mapbox.settings')->get();
    if (isset($config['token'])) {
      $vars['#attached']['drupalSettings']['repeatMapbox']['settings'] = $config;
      $vars['#attached']['library'][] = 'repeat_mapbox/mapbox';
      $vars['content']['map'] = [
        '#weight' => -100,
        '#type' => 'container',
        '#attributes' => [
          'id' => Html::getId('map'),
          'class' => ['mapbox_map', 'repeat_mapbox'],
          'data-mapbox-id' => $paragraph->id(),
        ],
      ];
       if ($paragraph->hasField('field_repeat_mapbox_base_url') && !$paragraph->get('field_repeat_mapbox_base_url')->isEmpty()) {
        $vars['content']['map']['#attributes']['data-style'] = $paragraph->get('field_repeat_mapbox_base_url')->value;
      }
      if ($paragraph->hasField('field_repeat_mapbox_data_view') && !$paragraph->get('field_repeat_mapbox_data_view')->isEmpty()) {
        /** @var ViewExecutable $list_view */
        $list_view = $vars["content"]["field_repeat_mapbox_list_view"][0]["contents"]["#view"];
        $list_view->build_info['mapbox'] = $paragraph->get('field_repeat_mapbox_data_view')->first()->getValue();
        $list_view->build_info['mapbox']['map_id'] = $paragraph->id();
      }
    }
    else {
      Drupal::logger('Repeat Mapbox')->error('Mapbox access token not set.', [
        'link' => Link::createFromRoute('Configure Mapbox', 'repeat_mapbox.mapbox_settings')
          ->toString(TRUE)
          ->getGeneratedLink(),
      ]);
      $vars['content']['map'] = [
        '#markup' => t('Map unavailable'),
        '#weight' => -100,
      ];
    }
  }
}

/**
 * Get data from a view for use in the map.
 *
 * Usually used to attach data as a json array with decode_json() to
 * drupalSettings in a paragraph or views preprocess.
 *
 * @param \Drupal\views\ViewExecutable|null $parent_view
 *   View to get arguments from.
 * @param string $json_view
 *   The view name to load.
 * @param string $display
 *   The view display to load - should be a GEOJson or REST Export.
 *
 * @return string
 *   Rendered view.
 */
function _repeat_mapbox_get_rendered_view(string $json_view, string $display, ?ViewExecutable $parent_view = NULL): string {
  $json_view = Views::getView($json_view);
  if (empty($json_view->storage->get('display')[$display])) {
    Drupal::logger('Repeat Mapbox')->error('Invalid display passed to _repeat_mapbox_get_rendered_view().');
    return '[]';
  }
  $json_view->setDisplay($display);

  if ($parent_view) {
    $args = $parent_view->args;
    $exposed_input = $parent_view->getExposedInput();
    if (!empty($exposed_input['search_api_fulltext'])) {
      $args['search_api_fulltext'] = $exposed_input['search_api_fulltext'];
    }
    $json_view->setArguments($args);
    $json_view->setExposedInput($exposed_input);
  }

  $rendered_view = $json_view->render();
  return $rendered_view['#markup']->__toString();
}

/**
 * Implements hook_geo_json_view().
 *
 * Mapbox doesn't handle multipoint geometries in geojson so split them out to
 * single Point geometries with the same data.
 */
function repeat_mapbox_geojson_view_alter(array &$features, ViewExecutable $view): void {
  // Only update geojson views that are tagged as mapbox views.
  $view_entity = \Drupal\views\Entity\View::load($view->id());
  $tags = \Drupal\Component\Utility\Tags::explode($view_entity->get('tag'));
  if (!in_array('mapbox', $tags)) {
    return;
  }

  $new = [
    'type' => 'FeatureCollection',
    'features' => [],
  ];
  foreach ($features['features'] as $feature) {
    if ($feature['geometry']['type'] === 'Point') {
      $new['features'][] = $feature;
    }
    elseif ($feature['geometry']['type'] === 'MultiPoint') {
      foreach ($feature['geometry']['coordinates'] as $point) {
        $feat = $feature;
        $feat['geometry']['type'] = 'Point';
        $feat['geometry']['coordinates'] = $point;
        $new['features'][] = $feat;
      }
    }
    else {
      $new['features'][] = $feature;
    }
  }
  $features = $new;
}

/**
 * Implements hook_preprocess_HOOK().
 */
function repeat_mapbox_preprocess_views_view(array &$variables): void {
  /** @var \Drupal\views\ViewExecutable $view */
  $view = $variables['view'];
  if (!empty($view->build_info['mapbox'])) {
    $data = $view->build_info['mapbox'];
  }
  else {
    $request = Drupal::request();
    if ($request->query->has('mapbox')) {
      $query = $request->query->all();
      $data = $query['mapbox'] ?? [];
    }
    else {
      return;
    }
  }
  $variables['#attached']['drupalSettings']['repeatMapbox'][$data['map_id']]['items'] = json_decode(_repeat_mapbox_get_rendered_view($data['target_id'], $data['display_id'], $view), TRUE);
  $variables['#attached']['drupalSettings']['repeatMapbox'][$data['map_id']]['update'] = TRUE;
  $variables['#attached']['drupalSettings']['repeatMapbox']['update'] = TRUE;
  $variables['#attached']['drupalSettings']['views']['ajaxViews']["views_dom_id:{$view->dom_id}"]['mapbox'] = $data;
}