public function LeafletMap::render in Leaflet 8

Same name and namespace in other branches

1. 2.1.x modules/leaflet_views/src/Plugin/views/style/LeafletMap.php \Drupal\leaflet_views\Plugin\views\style\LeafletMap::render()
2. 2.0.x modules/leaflet_views/src/Plugin/views/style/LeafletMap.php \Drupal\leaflet_views\Plugin\views\style\LeafletMap::render()

Renders the View.

Overrides StylePluginBase::render

File

modules/leaflet_views/src/Plugin/views/style/LeafletMap.php, line 671

Class

LeafletMap

Style plugin to render a View output as a Leaflet map.

Namespace

Drupal\leaflet_views\Plugin\views\style

Code

public function render() {

  // Performs some preprocess on the leaflet map settings.
  $this->leafletService
    ->preProcessMapSettings($this->options);
  $data = [];

  // Collect bubbleable metadata when doing early rendering.
  $build_for_bubbleable_metadata = [];

  // Always render the map, otherwise ...
  $leaflet_map_style = !isset($this->options['leaflet_map']) ? $this->options['map'] : $this->options['leaflet_map'];
  $map = leaflet_map_get_info($leaflet_map_style);

  // Set Map additional map Settings.
  $this
    ->setAdditionalMapOptions($map, $this->options);

  // Add a specific map id.
  $map['id'] = Html::getUniqueId("leaflet_map_view_" . $this->view
    ->id() . '_' . $this->view->current_display);
  if ($geofield_name = $this->options['data_source']) {
    $this
      ->renderFields($this->view->result);

    /* @var \Drupal\views\ResultRow $result */
    foreach ($this->view->result as $id => $result) {

      // For proper processing make sure the geofield_value is created as
      // an array, also if single value.
      $geofield_value = (array) $this
        ->getFieldValue($result->index, $geofield_name);
      if (!empty($geofield_value)) {
        $features = $this->leafletService
          ->leafletProcessGeofield($geofield_value);
        if (!empty($result->_entity)) {

          // Entity API provides a plain entity object.
          $entity = $result->_entity;
        }
        elseif (isset($result->_object)) {

          // Search API provides a TypedData EntityAdapter.
          $entity_adapter = $result->_object;
          if ($entity_adapter instanceof EntityAdapter) {
            $entity = $entity_adapter
              ->getValue();
          }
        }

        // Render the entity with the selected view mode.
        if (isset($entity)) {

          // Get and set (if not set) the Geofield cardinality.

          /* @var \Drupal\Core\Field\FieldItemList $geofield_entity */
          if (!isset($map['geofield_cardinality'])) {
            try {
              $geofield_entity = $entity
                ->get($geofield_name);
              $map['geofield_cardinality'] = $geofield_entity
                ->getFieldDefinition()
                ->getFieldStorageDefinition()
                ->getCardinality();
            } catch (\Exception $e) {

              // In case of exception it means that $geofield_name field is
              // not directly related to the $entity and might be the case of
              // a geofield exposed through a relationship.
              // In this case it is too complicate to get the geofield related
              // entity, so apply a more general case of multiple/infinite
              // geofield_cardinality.
              // @see: https://www.drupal.org/project/leaflet/issues/3048089
              $map['geofield_cardinality'] = -1;
            }
          }
          $entity_type = $entity
            ->getEntityTypeId();
          $entity_type_langcode_attribute = $entity_type . '_field_data_langcode';
          $view = $this->view;

          // Set the langcode to be used for rendering the entity.
          $rendering_language = $view->display_handler
            ->getOption('rendering_language');
          $dynamic_renderers = [
            '***LANGUAGE_entity_translation***' => 'TranslationLanguageRenderer',
            '***LANGUAGE_entity_default***' => 'DefaultLanguageRenderer',
          ];
          if (isset($dynamic_renderers[$rendering_language])) {

            /** @var \Drupal\Core\Entity\ContentEntityInterface $entity */
            $langcode = isset($result->{$entity_type_langcode_attribute}) ? $result->{$entity_type_langcode_attribute} : $entity
              ->language()
              ->getId();
          }
          else {
            if (strpos($rendering_language, '***LANGUAGE_') !== FALSE) {
              $langcode = PluginBase::queryLanguageSubstitutions()[$rendering_language];
            }
            else {

              // Specific langcode set.
              $langcode = $rendering_language;
            }
          }
          switch ($this->options['description_field']) {
            case '#rendered_entity':
              $build = $this->entityManager
                ->getViewBuilder($entity
                ->getEntityTypeId())
                ->view($entity, $this->options['view_mode'], $langcode);
              $render_context = new RenderContext();
              $description = $this->renderer
                ->executeInRenderContext($render_context, function () use (&$build) {
                return $this->renderer
                  ->render($build, TRUE);
              });
              if (!$render_context
                ->isEmpty()) {
                $render_context
                  ->update($build_for_bubbleable_metadata);
              }
              break;
            case '#rendered_entity_ajax':
              $parameters = [
                'entity_type' => $entity_type,
                'entity' => $entity
                  ->id(),
                'view_mode' => $this->options['view_mode'],
                'langcode' => $langcode,
              ];
              $url = Url::fromRoute('leaflet_views.ajax_popup', $parameters);
              $description = sprintf('<div class="leaflet-ajax-popup" data-leaflet-ajax-popup="%s" %s></div>', $url
                ->toString(), LeafletAjaxPopupController::getPopupIdentifierAttribute($entity_type, $entity
                ->id(), $this->options['view_mode'], $langcode));
              $map['settings']['ajaxPoup'] = TRUE;
              break;
            case '#rendered_view_fields':

              // Normal rendering via view/row fields (with labels options,
              // formatters, classes, etc.).
              $render_row = [
                "markup" => $this->view->rowPlugin
                  ->render($result),
              ];
              $description = !empty($this->options['description_field']) ? $this->renderer
                ->renderPlain($render_row) : '';
              break;
            default:

              // Row rendering of single specified field value (without
              // labels).
              $description = !empty($this->options['description_field']) ? $this->rendered_fields[$result->index][$this->options['description_field']] : '';
          }

          // Merge eventual map icon definition from hook_leaflet_map_info.
          if (!empty($map['icon'])) {
            $this->options['icon'] = $this->options['icon'] ?: [];

            // Remove empty icon options so that they might be replaced by
            // the ones set by the hook_leaflet_map_info.
            foreach ($this->options['icon'] as $k => $icon_option) {
              if (empty($icon_option) || is_array($icon_option) && $this->leafletService
                ->multipleEmpty($icon_option)) {
                unset($this->options['icon'][$k]);
              }
            }
            $this->options['icon'] = array_replace($map['icon'], $this->options['icon']);
          }

          // Define possible tokens.
          $tokens = [];
          foreach ($this->rendered_fields[$result->index] as $field_name => $field_value) {
            $tokens[$field_name] = $field_value;
            $tokens["{{ {$field_name} }}"] = $field_value;
          }
          $icon_type = isset($this->options['icon']['iconType']) ? $this->options['icon']['iconType'] : 'marker';

          // Relates the feature with additional properties.
          foreach ($features as &$feature) {

            // Add its entity id, so that it might be referenced from outside.
            $feature['entity_id'] = $entity
              ->id();

            // Attach pop-ups if we have a description field.
            if (isset($description)) {
              $feature['popup'] = $description;
            }

            // Attach also titles, they might be used later on.
            if ($this->options['name_field']) {

              // Decode any entities because JS will encode them again and
              // we don't want double encoding.
              $feature['label'] = !empty($this->options['name_field']) ? Html::decodeEntities($this->rendered_fields[$result->index][$this->options['name_field']]) : '';
            }

            // Eventually set the custom Marker icon (DivIcon, Icon Url or
            // Circle Marker).
            if ($feature['type'] === 'point' && isset($this->options['icon'])) {
              $feature['icon'] = $this->options['icon'];
              switch ($icon_type) {
                case 'html':
                  $feature['icon']['html'] = str_replace([
                    "\n",
                    "\r",
                  ], "", $this
                    ->viewsTokenReplace($this->options['icon']['html'], $tokens));
                  $feature['icon']['html_class'] = $this->options['icon']['html_class'];
                  break;
                case 'circle_marker':
                  $feature['icon']['options'] = str_replace([
                    "\n",
                    "\r",
                  ], "", $this
                    ->viewsTokenReplace($this->options['icon']['circle_marker_options'], $tokens));
                  break;
                default:
                  if (!empty($this->options['icon']['iconUrl'])) {
                    $feature['icon']['iconUrl'] = str_replace([
                      "\n",
                      "\r",
                    ], "", $this
                      ->viewsTokenReplace($this->options['icon']['iconUrl'], $tokens));
                    if (!empty($this->options['icon']['shadowUrl'])) {
                      $feature['icon']['shadowUrl'] = str_replace([
                        "\n",
                        "\r",
                      ], "", $this
                        ->viewsTokenReplace($this->options['icon']['shadowUrl'], $tokens));
                    }
                  }
                  break;
              }
            }

            // Associate dynamic path properties (token based) to each
            // feature, in case of not point.
            if ($feature['type'] !== 'point') {
              $feature['path'] = str_replace([
                "\n",
                "\r",
              ], "", $this
                ->viewsTokenReplace($this->options['path'], $tokens));
            }

            // Allow modules to adjust the marker.
            \Drupal::moduleHandler()
              ->alter('leaflet_views_feature', $feature, $result, $this->view->rowPlugin);
          }

          // Add new points to the whole basket.
          $data = array_merge($data, $features);
        }
      }
    }
  }

  // Don't render the map, if we do not have any data
  // and the hide option is set.
  if (empty($data) && !empty($this->options['hide_empty_map'])) {
    return [];
  }
  $js_settings = [
    'map' => $map,
    'features' => $data,
  ];

  // Allow other modules to add/alter the map js settings.
  $this->moduleHandler
    ->alter('leaflet_map_view_style', $js_settings, $this);
  $map_height = !empty($this->options['height']) ? $this->options['height'] . $this->options['height_unit'] : '';
  $element = $this->leafletService
    ->leafletRenderMap($js_settings['map'], $js_settings['features'], $map_height);

  // Add the Core Drupal Ajax library for Ajax Popups.
  if (isset($map['settings']['ajaxPoup']) && $map['settings']['ajaxPoup'] == TRUE) {
    $build_for_bubbleable_metadata['#attached']['library'][] = 'core/drupal.ajax';
  }
  BubbleableMetadata::createFromRenderArray($element)
    ->merge(BubbleableMetadata::createFromRenderArray($build_for_bubbleable_metadata))
    ->applyTo($element);
  return $element;
}