GeolocationLatlngWidget.php in Geolocation Field 8

Namespace

Drupal\geolocation\Plugin\Field\FieldWidget

File

src/Plugin/Field/FieldWidget/GeolocationLatlngWidget.php

<?php

namespace Drupal\geolocation\Plugin\Field\FieldWidget;

use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Field\WidgetBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\geolocation\GeolocationCore;

/**
 * Plugin implementation of the 'geolocation_latlng' widget.
 *
 * @FieldWidget(
 *   id = "geolocation_latlng",
 *   label = @Translation("Geolocation Lat/Lng"),
 *   field_types = {
 *     "geolocation"
 *   }
 * )
 */
class GeolocationLatlngWidget extends WidgetBase {

  /**
   * {@inheritdoc}
   */
  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
    $element['#type'] = 'fieldset';
    $element['lat'] = [
      '#type' => 'textfield',
      '#title' => $this
        ->t('Latitude'),
      '#default_value' => isset($items[$delta]->lat) ? $items[$delta]->lat : NULL,
      '#empty_value' => '',
      '#maxlength' => 255,
      '#required' => $this->fieldDefinition
        ->isRequired(),
      '#description_display' => 'after',
    ];
    $lat_example = $element['lat']['#default_value'] ?: '51.47879';
    $element['lat']['#description'] = $this
      ->t('Enter either in decimal %decimal or sexagesimal format %sexagesimal', [
      '%decimal' => $lat_example,
      '%sexagesimal' => GeolocationCore::decimalToSexagesimal($lat_example),
    ]);
    $element['lng'] = [
      '#type' => 'textfield',
      '#title' => $this
        ->t('Longitude'),
      '#empty_value' => '',
      '#default_value' => isset($items[$delta]->lng) ? $items[$delta]->lng : NULL,
      '#maxlength' => 255,
      '#required' => $this->fieldDefinition
        ->isRequired(),
      '#description_display' => 'after',
    ];
    $lng_example = $element['lng']['#default_value'] ?: '-0.010677';
    $element['lng']['#description'] = $this
      ->t('Enter either in decimal %decimal or sexagesimal format %sexagesimal', [
      '%decimal' => $lng_example,
      '%sexagesimal' => GeolocationCore::decimalToSexagesimal($lng_example),
    ]);
    return $element;
  }

  /**
   * {@inheritdoc}
   */
  public function massageFormValues(array $values, array $form, FormStateInterface $form_state) {

    // Grep GPS values and transform to regular float.
    foreach ($values as $index => $geolocation) {
      if (!empty($geolocation['lat']) && !empty($geolocation['lng'])) {
        $latitude = GeolocationCore::sexagesimalToDecimal($values[$index]['lat']);
        $longitude = GeolocationCore::sexagesimalToDecimal($values[$index]['lng']);
        if (!empty($latitude) && !empty($longitude)) {
          $values[$index]['lat'] = $latitude;
          $values[$index]['lng'] = $longitude;
        }
      }
    }
    return parent::massageFormValues($values, $form, $form_state);
  }

}

Classes

Name	Description
GeolocationLatlngWidget	Plugin implementation of the 'geolocation_latlng' widget.