LocationManager.php in Geolocation Field 8.3

Namespace

Drupal\geolocation

File

src/LocationManager.php

<?php

namespace Drupal\geolocation;

use Drupal\Core\Plugin\DefaultPluginManager;
use Drupal\Core\Cache\CacheBackendInterface;
use Drupal\Core\Extension\ModuleHandlerInterface;
use Drupal\Component\Utility\SortArray;
use Drupal\Core\StringTranslation\StringTranslationTrait;

/**
 * Search plugin manager.
 */
class LocationManager extends DefaultPluginManager {
  use StringTranslationTrait;

  /**
   * Constructs an LocationManager object.
   *
   * @param \Traversable $namespaces
   *   An object that implements \Traversable which contains the root paths
   *   keyed by the corresponding namespace to look for plugin implementations.
   * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
   *   Cache backend instance to use.
   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
   *   The module handler to invoke the alter hook with.
   */
  public function __construct(\Traversable $namespaces, CacheBackendInterface $cache_backend, ModuleHandlerInterface $module_handler) {
    parent::__construct('Plugin/geolocation/Location', $namespaces, $module_handler, 'Drupal\\geolocation\\LocationInterface', 'Drupal\\geolocation\\Annotation\\Location');
    $this
      ->alterInfo('geolocation_location_info');
    $this
      ->setCacheBackend($cache_backend, 'geolocation_location');
  }

  /**
   * Return Location by ID.
   *
   * @param string $id
   *   Location ID.
   * @param array $configuration
   *   Configuration.
   *
   * @return \Drupal\geolocation\LocationInterface|false
   *   Location instance.
   */
  public function getLocationPlugin($id, array $configuration = []) {
    if (!$this
      ->hasDefinition($id)) {
      return FALSE;
    }
    try {

      /** @var \Drupal\geolocation\LocationInterface $instance */
      $instance = $this
        ->createInstance($id, $configuration);
      if ($instance) {
        return $instance;
      }
    } catch (\Exception $e) {
      return FALSE;
    }
    return FALSE;
  }

  /**
   * Get form render array.
   *
   * @param array $settings
   *   Settings.
   * @param mixed $context
   *   Optional context.
   *
   * @return array
   *   Form.
   */
  public function getLocationOptionsForm(array $settings, $context = NULL) {
    $form = [
      '#type' => 'table',
      '#prefix' => $this
        ->t('<h3>Centre options</h3>Please note: Each option will, if it can be applied, supersede any following option.'),
      '#header' => [
        $this
          ->t('Enable'),
        $this
          ->t('Option'),
        $this
          ->t('Settings'),
        $this
          ->t('Settings'),
      ],
      '#attributes' => [
        'id' => 'geolocation-centre-options',
      ],
      '#tabledrag' => [
        [
          'action' => 'order',
          'relationship' => 'sibling',
          'group' => 'geolocation-centre-option-weight',
        ],
      ],
    ];
    foreach ($this
      ->getDefinitions() as $location_id => $location_definition) {

      /** @var \Drupal\geolocation\LocationInterface $mapCenter */
      $location = $this
        ->createInstance($location_id);
      foreach ($location
        ->getAvailableLocationOptions($context) as $option_id => $label) {
        $option_enable_id = uniqid($option_id . '_enabled');
        $weight = isset($settings[$option_id]['weight']) ? $settings[$option_id]['weight'] : 0;
        $form[$option_id] = [
          '#weight' => $weight,
          '#attributes' => [
            'class' => [
              'draggable',
            ],
          ],
          'enable' => [
            '#attributes' => [
              'id' => $option_enable_id,
            ],
            '#type' => 'checkbox',
            '#default_value' => isset($settings[$option_id]['enable']) ? $settings[$option_id]['enable'] : FALSE,
          ],
          'option' => [
            '#markup' => $label,
          ],
          'weight' => [
            '#type' => 'weight',
            '#title' => $this
              ->t('Weight for @option', [
              '@option' => $label,
            ]),
            '#title_display' => 'invisible',
            '#size' => 4,
            '#default_value' => $weight,
            '#attributes' => [
              'class' => [
                'geolocation-centre-option-weight',
              ],
            ],
          ],
          'location_plugin_id' => [
            '#type' => 'value',
            '#value' => $location_id,
          ],
        ];
        $option_form = $location
          ->getSettingsForm($option_id, empty($settings[$option_id]['settings']) ? [] : $settings[$option_id]['settings'], $context);
        if (!empty($option_form)) {
          $option_form['#states'] = [
            'visible' => [
              ':input[id="' . $option_enable_id . '"]' => [
                'checked' => TRUE,
              ],
            ],
          ];
          $option_form['#type'] = 'item';
          $form[$option_id]['settings'] = $option_form;
        }
      }
    }
    uasort($form, [
      SortArray::class,
      'sortByWeightProperty',
    ]);
    return $form;
  }

  /**
   * Get location center coordinates.
   *
   * @param array $settings
   *   Center option settings.
   * @param mixed $context
   *   Context.
   *
   * @return array
   *   Centre value.
   */
  public function getLocation(array $settings, $context = NULL) {
    $center = [];
    foreach ($settings as $option_id => $option) {

      // Ignore if not enabled.
      if (empty($option['enable'])) {
        continue;
      }
      if (!$this
        ->hasDefinition($option['location_plugin_id'])) {
        continue;
      }

      /** @var \Drupal\geolocation\LocationInterface $location_plugin */
      $location_plugin = $this
        ->createInstance($option['location_plugin_id']);
      $plugin_center = $location_plugin
        ->getCoordinates($option_id, empty($option['settings']) ? [] : $option['settings'], $context);
      if (!empty($plugin_center)) {

        // Break on first found center.
        return $plugin_center;
      }
    }
    return $center;
  }

}

Classes

Name	Description
LocationManager	Search plugin manager.