contacts-8.x-1.x-dev/modules/mapping/contacts_mapping/contacts_mapping.module

<?php

/**
 * @file
 * Contains Contacts Mapping.
 */

use Drupal\Core\Entity\EntityInterface;
use Drupal\profile\Entity\ProfileInterface;
use Drupal\user\UserInterface;

/**
 * Implements hook_ENTITY_TYPE_update() for profile.
 */
function contacts_mapping_profile_update(EntityInterface $entity) {
  /** @var \Drupal\profile\Entity\ProfileInterface $entity */
  if ($entity->isDefault()) {
    $user = $entity->getOwner();
    if (_contacts_mapping_profile_map_update($user, $entity)) {
      $user->save();
    }
  }
}

/**
 * Implements hook_ENTITY_TYPE_presave() for user.
 */
function contacts_mapping_user_presave(EntityInterface $entity) {
  /** @var \Drupal\user\UserInterface $entity */
  // @todo Potentially allow all profiles or build configuration.
  foreach (['crm_indiv', 'crm_org'] as $profile_type) {
    if ($entity->hasField("profile_{$profile_type}") && !$entity->get("profile_{$profile_type}")->isEmpty()) {
      /** @var \Drupal\Core\Field\EntityReferenceFieldItemList $field_list */
      $field_list = $entity->get("profile_{$profile_type}");
      foreach ($field_list->referencedEntities() as $profile) {
        if ($profile->isDefault()) {
          _contacts_mapping_profile_map_update($entity, $profile);
        }
      }
    }
  }
}

/**
 * Post save operation for profile entity.
 *
 * @see contacts_mapping_user_presave()
 * @see contacts_mapping_profile_update()
 */
function _contacts_mapping_profile_map_update(UserInterface $user, ProfileInterface $profile) {
  if (!$profile->hasField('geolocation_geocoded')) {
    return FALSE;
  }

  $original = $profile->original;

  // If the field is empty and there is no original value do nothing.
  if (!$original && $profile->get('geolocation_geocoded')->isEmpty()) {
    return FALSE;
  }

  $geofield = $user->get('geolocation');
  // If we have the original entity check for changes.
  // If the user field is empty it does not matter if the profile data hasn't
  // changed.
  if (!$geofield->isEmpty() && $original && $profile->geolocation_geocoded->value == $original->geolocation_geocoded->value) {
    return FALSE;
  }

  // Fetch geo data from source fields.
  /** @var \Drupal\contacts_mapping\Plugin\Field\FieldType\GeofieldItemList $geofield */
  return $geofield->updateGeoFromSource();
}

/**
 * Implements hook_field_formatter_info_alter().
 *
 * Allow all geofield formatters to be used by geofield_override.
 */
function contacts_mapping_field_formatter_info_alter(array &$info) {
  foreach ($info as &$type) {
    if (in_array('geofield', $type['field_types'])) {
      $type['field_types'][] = 'geofield_override';
    }
  }
}

/**
 * Implements hook_field_widget_info_alter().
 *
 * Allow all geofield widgets to be used by geofield_override.
 */
function contacts_mapping_field_widget_info_alter(array &$info) {
  foreach ($info as &$type) {
    if (in_array('geofield', $type['field_types'])) {
      $type['field_types'][] = 'geofield_override';
    }
  }
}