private function LeafletGeojson::leafletGeojsonMapPaneRenderLayeredMap in Leaflet GeoJSON 8

Helper function to generate the map markup based on the pane config.

1 call to LeafletGeojson::leafletGeojsonMapPaneRenderLayeredMap()

LeafletGeojson::build in src/Plugin/Block/LeafletGeojson.php

Builds and returns the renderable array for this block plugin.

File

src/Plugin/Block/LeafletGeojson.php, line 295

Class

LeafletGeojson

Provides a 'Leaflet Geojson' Block.

Namespace

Drupal\leaflet_geojson\Plugin\Block

Code

private function leafletGeojsonMapPaneRenderLayeredMap() {
  $conf = $this->configuration;

  // Gather information about the leaflet base and data layers.
  $map_base_info = leaflet_map_get_info($conf['map_settings']['base']);
  $data_layers_info = [];
  foreach ($conf['map_settings']['info']['data'] as $layer_idx => $layer_machine_name) {
    $data_layers_info[$layer_idx] = leaflet_geojson_source_get_info($layer_machine_name);
  }

  // We are not currently supporting mixed bounding, i.e. if any one layer
  // is not bounded, then all layers will be fetched non-bounded. This will
  // have serious performance impact at large scale.
  $all_bounded = TRUE;
  foreach ($data_layers_info as $layer_idx => $layer_info) {
    if (!isset($layer_info['bbox'])) {
      $all_bounded = FALSE;
      break;
    }
  }
  $feature_layers = [];
  if ($all_bounded) {

    // Ensure the map center is non-empty for bbox.
    if (empty($map_base_info['center'])) {
      $map_base_info['center'] = [
        'lon' => 0,
        'lat' => 0,
      ];
    }
  }
  else {

    /* @TODO: non-bounded data fetch */
  }

  // Apply any overrides of natural center and zoom.
  if (!empty($conf['map_settings']['override_zoom_center'])) {
    if (!empty($conf['map_settings']['custom_zoom_center']['zoom'])) {
      $map_base_info['settings']['zoom'] = $conf['map_settings']['custom_zoom_center']['zoom'];
      $map_base_info['settings']['map_position_force'] = TRUE;
    }
    if (!empty($conf['map_settings']['custom_zoom_center']['center']['lat']) && !empty($conf['map_settings']['custom_zoom_center']['center']['lon'])) {
      $map_base_info['settings']['center'] = [
        'lat' => $conf['map_settings']['custom_zoom_center']['center']['lat'],
        'lon' => $conf['map_settings']['custom_zoom_center']['center']['lon'],
      ];
    }
  }

  // Allow other modules to alter the map data.
  $this->moduleHandler
    ->alter('leaflet_geojson_map_pane', $map_base_info, $feature_layers);
  $map_build = $this->leafletService
    ->leafletRenderMap($map_base_info, $feature_layers, $conf['map_settings']['height'] . $conf['map_settings']['height_unit']);
  return $map_build;
}