Field.php in Openlayers 7.3

Source: Field.

Namespace

Drupal\openlayers_field\Plugin\Source\Field

File

modules/openlayers_field/src/Plugin/Source/Field/Field.php

<?php

/**
 * @file
 * Source: Field.
 */
namespace Drupal\openlayers_field\Plugin\Source\Field;

use Drupal\openlayers\Plugin\Source\Vector\Vector;
use Drupal\openlayers\Types\Source;

/**
 * Class Field.
 *
 * @OpenlayersPlugin(
 *  id = "Field",
 *  description = "Provides a source where data are geocoded from provided options."
 * )
 */
class Field extends Vector {

  /**
   * {@inheritdoc}
   */
  public function dependencies() {
    return array(
      'geocoder',
    );
  }

  /**
   * {@inheritdoc}
   */
  public function optionsForm(array &$form, array &$form_state) {
    $geocoder_handlers = array();
    foreach (geocoder_handler_info() as $name => $handler) {
      $geocoder_handlers[$name] = $handler['title'];
    }
    $form['options']['geocoder_handler'] = array(
      '#type' => 'select',
      '#title' => t('Geocoder handler'),
      '#options' => $geocoder_handlers,
      '#required' => TRUE,
      '#default_value' => $this
        ->getOption('geocoder_handler', 'google'),
    );
    drupal_add_tabledrag('entry-order-geocoder-handlers', 'order', 'sibling', 'entry-order-weight');
    $form['options']['geocoder_cache'] = array(
      '#type' => 'select',
      '#title' => t('Geocoder cache type'),
      '#description' => t('Type of geocoder cache to use'),
      '#options' => array(
        0 => t('No caching'),
        1 => t('Static-cache but no persistent-cache'),
        2 => t('Both static-cache and persistent-cache'),
      ),
      '#default_value' => $this
        ->getOption('geocoder_cache', 0),
    );
    $fields = $this
      ->getOption('fields', array(
      array(),
    ));
    if (!empty($fields[0])) {
      $fields[] = array();
    }
    foreach ($fields as $index => $field) {
      $form['options']['fields'][$index] = array(
        '#type' => 'fieldset',
        '#title' => $field == end($fields) ? t('Add a new feature') : 'Feature ' . $index,
        '#collapsible' => TRUE,
        '#collapsed' => $field == end($fields) ? TRUE : FALSE,
        'title' => array(
          '#title' => 'Title',
          '#type' => 'textfield',
          '#default_value' => isset($fields[$index]['title']) ? $fields[$index]['title'] : '',
        ),
        'description' => array(
          '#title' => 'Description',
          '#type' => 'textarea',
          '#default_value' => isset($fields[$index]['description']) ? $fields[$index]['description'] : '',
        ),
        'address' => array(
          '#title' => 'Address',
          '#type' => 'textfield',
          '#default_value' => isset($fields[$index]['address']) ? $fields[$index]['address'] : '',
        ),
        'geojson' => array(
          '#type' => 'textarea',
          '#title' => 'GeoJson',
          '#disabled' => TRUE,
          '#default_value' => isset($fields[$index]['geojson']) ? $fields[$index]['geojson'] : '',
        ),
      );
    }
  }

  /**
   * {@inheritdoc}
   */
  public function optionsFormSubmit(array $form, array &$form_state) {
    $fields = $form_state['values']['options']['fields'];
    $geocoder_handler = $form_state['values']['options']['geocoder_handler'];
    $geocoder_cache = $form_state['values']['options']['geocoder_cache'];

    // This is for optimizing the source rendering in JS.
    // It converts all the address fields of the source to WKT.
    foreach ($fields as $index => &$field) {
      if (isset($field['address']) && !empty($field['address'])) {
        $geocoder = geocoder($geocoder_handler, $field['address'], array(), $geocoder_cache);
        if (!is_null($geocoder)) {
          $field['wkt'] = $geocoder
            ->out('wkt');
        }
        else {
          unset($field['geojson']);
        }
      }
      else {
        unset($fields[$index]);
      }
    }
    $form_state['values']['options']['fields'] = $fields;
    parent::optionsFormSubmit($form, $form_state);
  }

  /**
   * {@inheritdoc}
   */
  public function getJS() {
    $js = parent::getJS();
    $features = $this
      ->getGeojsonFeatures();
    if (!empty($features)) {
      $js['opt']['geojson_data'] = array(
        'type' => 'FeatureCollection',
        'features' => $features,
      );
    }
    unset($js['opt']['fields']);
    return $js;
  }

  /**
   * Compute the GeoJSON features array.
   *
   * @return array
   *   The geojson array.
   */
  protected function getGeojsonFeatures() {
    $features = array();
    foreach ($this
      ->getOption('fields', array()) as $field) {
      $feature = FALSE;
      if (isset($field['geojson']) && !empty($field['geojson'])) {
        $feature = json_decode($field['geojson'], TRUE);
        $json = FALSE;
        if (isset($field['wkt']) && !empty($field['wkt'])) {
          geophp_load();
          $geophp = \geoPHP::load($field['wkt'], 'wkt');
          if (is_object($geophp)) {
            $json = $geophp
              ->out('json');
          }
        }
        else {
          if (isset($field['address']) && !empty($field['address'])) {
            $geocoder = geocoder($this
              ->getOption('geocoder_handler', 'google'), $field['address'], array(), $this
              ->getOption('geocoder_cache', 2));
            if (is_object($geocoder)) {
              $json = $geocoder
                ->out('json');
            }
          }
        }
        if ($feature) {
          $features[] = $feature;
        }
      }
      return $features;
    }
  }

}

Classes

Name	Description
Field	Class Field.