GeocoderWidget.php in Geocoder 8

Contains \Drupal\geocoder\Plugin\Field\FieldWidget\GeocoderWidget.

Namespace

Drupal\geocoder\Plugin\Field\FieldWidget

File

src/Plugin/Field/FieldWidget/GeocoderWidget.php

<?php

/**
 * @file
 * Contains \Drupal\geocoder\Plugin\Field\FieldWidget\GeocoderWidget.
 */
namespace Drupal\geocoder\Plugin\Field\FieldWidget;

use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Field\WidgetBase;
use Drupal\Core\Form\FormStateInterface;
use Symfony\Component\Validator\ConstraintViolationInterface;

/**
 * Plugin implementation of the 'geocoder_default' widget.
 *
 * @FieldWidget(
 *   id = "geocoder_widget",
 *   label = @Translation("Geocoder"),
 *   field_types = {
 *     "string"
 *   },
 * )
 */
class GeocoderWidget extends WidgetBase {

  /**
   * {@inheritdoc}
   */
  public static function defaultSettings() {
    return array(
      'destination_field' => "",
      'placeholder' => "",
      'geocoder_engine' => "",
    ) + parent::defaultSettings();
  }

  /**
   * {@inheritdoc}
   */
  public function settingsForm(array $form, FormStateInterface $form_state) {
    $elements = parent::settingsForm($form, $form_state);
    $entityFieldDefinitions = \Drupal::entityManager()
      ->getFieldDefinitions($this->fieldDefinition->entity_type, $this->fieldDefinition->bundle);
    $options = array();
    foreach ($entityFieldDefinitions as $id => $definition) {
      if ($definition
        ->getType() == 'geofield') {
        $options[$id] = $definition
          ->getLabel();
      }
    }
    $elements['destination_field'] = array(
      '#type' => 'select',
      '#title' => $this
        ->t('Destination Geo Field'),
      '#default_value' => $this
        ->getSetting('destination_field'),
      '#required' => TRUE,
      '#options' => $options,
    );
    $elements['placeholder'] = array(
      '#type' => 'textfield',
      '#title' => t('Placeholder'),
      '#default_value' => $this
        ->getSetting('placeholder'),
      '#description' => t('Text that will be shown inside the field until a value is entered. This hint is usually a sample value or a brief description of the expected format.'),
    );
    return $elements;
  }

  /**
   * {@inheritdoc}
   */
  public function settingsSummary() {
    $summary = array();
    $summary[] = $this
      ->t('Destination Geofield: !destination', array(
      '!destination' => $this
        ->getSetting('destination_field'),
    ));
    $placeholder = $this
      ->getSetting('placeholder');
    if (!empty($placeholder)) {
      $summary[] = t('Placeholder: @placeholder', array(
        '@placeholder' => $placeholder,
      ));
    }
    return $summary;
  }

  /**
   * {@inheritdoc}
   */
  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
    $main_widget = $element + array(
      '#type' => 'textfield',
      '#default_value' => isset($items[$delta]->value) ? $items[$delta]->value : NULL,
      '#placeholder' => $this
        ->getSetting('placeholder'),
      '#attributes' => array(
        'class' => array(
          'geocoder-source',
        ),
      ),
    );
    $element['value'] = $main_widget;
    $source_field_id = 'edit-' . str_replace('_', '-', $items
      ->getFieldDefinition()
      ->getName()) . '-' . $delta . '-value';
    $destination_field_id = 'edit-' . str_replace('_', '-', $this
      ->getSetting('destination_field')) . '-wrapper';
    $google_api_key = \Drupal::config('geocoder.google')
      ->get('api_key');
    $element['#attached'] = array(
      'library' => array(
        array(
          'system',
          'jquery.ui.autocomplete',
        ),
      ),
      'js' => array(
        'sites/all/libraries/geocoder-js/dist/geocoder.js',
        drupal_get_path('module', 'geocoder') . '/js/geocoderWidget.js',
        array(
          'data' => array(
            'geocoder' => array(
              'engine' => 'google',
              'api_key' => $google_api_key,
              'fields' => array(
                array(
                  'sourceField' => $source_field_id,
                  'destinationField' => $destination_field_id,
                  'sourceType' => 'geofield',
                ),
              ),
            ),
          ),
          'type' => 'setting',
        ),
      ),
    );
    return $element;
  }

  /**
   * {@inheritdoc}
   */
  public function errorElement(array $element, ConstraintViolationInterface $violation, array $form, FormStateInterface $form_state) {
    if ($violation->arrayPropertyPath == array(
      'format',
    ) && isset($element['format']['#access']) && !$element['format']['#access']) {

      // Ignore validation errors for formats if formats may not be changed,
      // i.e. when existing formats become invalid. See filter_process_format().
      return FALSE;
    }
    return $element;
  }

}

Classes

Name	Description
GeocoderWidget	Plugin implementation of the 'geocoder_default' widget.