GeocoderArgument.php in Geolocation Field 8.2

Namespace

Drupal\geolocation\Plugin\views\argument

File

src/Plugin/views/argument/GeocoderArgument.php

<?php

namespace Drupal\geolocation\Plugin\views\argument;

use Drupal\geolocation\GeocoderManager;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\Core\Form\FormStateInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Argument handler for geolocation.
 *
 * @ingroup views_argument_handlers
 *
 * @ViewsArgument("geolocation_geocoder_argument")
 */
class GeocoderArgument extends ProximityArgument implements ContainerFactoryPluginInterface {

  /**
   * The GeocoderManager object.
   *
   * @var \Drupal\geolocation\GeocoderManager
   */
  protected $geocoderManager;

  /**
   * Constructs a Handler object.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin_id for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\geolocation\GeocoderManager $geocoder_manager
   *   Geocoder manager.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, GeocoderManager $geocoder_manager) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->geocoderManager = $geocoder_manager;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($configuration, $plugin_id, $plugin_definition, $container
      ->get('plugin.manager.geolocation.geocoder'));
  }

  /**
   * {@inheritdoc}
   */
  protected function defineOptions() {
    return array_replace_recursive(parent::defineOptions(), [
      'geocoder' => [
        'default' => 'google_geocoding_api',
      ],
      'geocoder_settings' => [
        'default' => [],
      ],
    ]);
  }

  /**
   * {@inheritdoc}
   */
  public function buildOptionsForm(&$form, FormStateInterface $form_state) {
    parent::buildOptionsForm($form, $form_state);
    $geocoder_options = [];
    foreach ($this->geocoderManager
      ->getDefinitions() as $id => $definition) {
      if (empty($definition['frontendCapable'])) {
        continue;
      }
      $geocoder_options[$id] = $definition['name'];
    }
    if ($geocoder_options) {
      $form['geocoder'] = [
        '#type' => 'select',
        '#options' => $geocoder_options,
        '#title' => $this
          ->t('Geocoder plugin'),
        '#default_value' => $this->options['geocoder'],
        '#ajax' => [
          'callback' => [
            get_class($this->geocoderManager),
            'addGeocoderSettingsFormAjax',
          ],
          'wrapper' => 'geocoder-plugin-settings',
          'effect' => 'fade',
        ],
      ];
      if (!empty($this->options['geocoder'])) {
        $geocoder_plugin = $this->geocoderManager
          ->getGeocoder($this->options['geocoder'], $this->options['geocoder_settings'] ?: []);
      }
      elseif (current(array_keys($geocoder_options))) {
        $geocoder_plugin = $this->geocoderManager
          ->getGeocoder(current(array_keys($geocoder_options)));
      }
      if (!empty($geocoder_plugin)) {
        $geocoder_settings_form = $geocoder_plugin
          ->getOptionsForm();
        if ($geocoder_settings_form) {
          $form['geocoder_settings'] = $geocoder_settings_form;
        }
      }
      if (empty($form['geocoder_settings'])) {
        $form['geocoder_settings'] = [
          '#type' => 'html_tag',
          '#tag' => 'span',
          '#value' => $this
            ->t("No settings available."),
        ];
      }
      $form['geocoder_settings'] = array_replace_recursive($form['geocoder_settings'], [
        '#flatten' => TRUE,
        '#prefix' => '<div id="geocoder-plugin-settings">',
        '#suffix' => '</div>',
      ]);
    }
  }

  /**
   * Processes the passed argument into an array of relevant geolocation data.
   *
   * @return array|bool
   *   The calculated values.
   */
  public function getParsedReferenceLocation() {

    // Cache the vales so this only gets processed once.
    static $values;
    if (!isset($values)) {
      $matches = [];
      preg_match('/^([^<>=]+)([<>=]+)([0-9.]+)(.*$)/', $this
        ->getValue(), $matches);
      if (count($matches) < 4) {
        return [];
      }
      $geocoder = $this->geocoderManager
        ->getGeocoder($this->options['geocoder'], $this->options['geocoder_settings']);
      if (empty($geocoder)) {
        return [];
      }
      $coordinates = $geocoder
        ->geocode($matches[1]);
      if (empty($coordinates)) {
        return [];
      }
      $values = $coordinates['location'];
      if (in_array($matches[2], [
        '<>',
        '=',
        '>=',
        '<=',
        '>',
        '<',
      ])) {
        $values['operator'] = $matches[2];
      }
      else {
        return [];
      }
      $values['distance'] = floatval($matches[3]);
      $values['unit'] = empty($matches[4]) ? 'km' : $matches[4];
    }
    return $values;
  }

}

Classes

Name	Description
GeocoderArgument	Argument handler for geolocation.