public function Group::optionsForm in Openlayers 7.3

@TODO What is this return? If it is the form, why is form by reference?

Overrides Base::optionsForm

File

src/Plugin/Layer/Group/Group.php, line 24

Layer: Heatmap.

Class

Group

Class Group.

Namespace

Drupal\openlayers\Plugin\Layer\Group

Code

public function optionsForm(array &$form, array &$form_state) {
  $form['options']['grouptitle'] = array(
    '#type' => 'textfield',
    '#title' => 'Layer group title',
    '#default_value' => $this
      ->getOption('grouptitle', 'Base layers'),
  );

  /** @var LayerInterface[] $all_layers */
  $all_layers = Openlayers::loadAll('Layer');
  array_walk($all_layers, function ($object) {
    $object
      ->setWeight(0);
    $object->enabled = 0;
  });
  foreach ($this
    ->getOption('grouplayers', array()) as $weight => $layer) {
    $layer = Openlayers::load('layer', $layer);
    $all_layers[$layer
      ->getMachineName()]
      ->setWeight($weight);
    $all_layers[$layer
      ->getMachineName()]->enabled = 1;
  }
  uasort($all_layers, function ($a, $b) {
    if ($a->enabled > $b->enabled) {
      return -1;
    }
    elseif ($a->enabled < $b->enabled) {
      return 1;
    }
    if ($a
      ->getWeight() < $b
      ->getWeight()) {
      return -1;
    }
    elseif ($a
      ->getWeight() > $b
      ->getWeight()) {
      return 1;
    }
    if ($a
      ->getMachineName() < $b
      ->getMachineName()) {
      return -1;
    }
    elseif ($a
      ->getMachineName() > $b
      ->getMachineName()) {
      return 1;
    }
    return 0;
  });
  $data = array();
  $i = 0;

  /** @var \Drupal\openlayers\Types\Layer $layer */
  foreach ($all_layers as $layer) {
    $data[$layer
      ->getMachineName()] = array(
      'name' => $layer
        ->getName(),
      'machine_name' => $layer
        ->getMachineName(),
      'factory_service' => $layer
        ->getFactoryService(),
      'weight' => $i++,
      'enabled' => isset($layer->enabled) ? $layer->enabled : 0,
    );
  }
  $rows = array();
  $row_elements = array();
  foreach ($data as $id => $entry) {
    $rows[$id] = array(
      'data' => array(
        array(
          'class',
          array(
            'entry-cross',
          ),
        ),
        array(
          'data' => array(
            '#type' => 'weight',
            '#title' => t('Weight'),
            '#title_display' => 'invisible',
            '#default_value' => $entry['weight'],
            '#parents' => array(
              'grouplayers',
              $id,
              'weight',
            ),
            '#attributes' => array(
              'class' => array(
                'entry-order-weight',
              ),
            ),
          ),
        ),
        array(
          'data' => array(
            '#type' => 'hidden',
            '#default_value' => $entry['machine_name'],
            '#parents' => array(
              'grouplayers',
              $id,
              'machine_name',
            ),
          ),
        ),
        array(
          'data' => array(
            '#type' => 'checkbox',
            '#title' => t('Enable'),
            '#title_display' => 'invisible',
            '#default_value' => $entry['enabled'],
            '#parents' => array(
              'grouplayers',
              $id,
              'enabled',
            ),
          ),
        ),
        check_plain($entry['name']),
        check_plain($entry['machine_name']),
        check_plain($entry['factory_service']),
        l(t('Edit'), 'admin/structure/openlayers/layers/list/' . $entry['machine_name'] . '/edit/options', array(
          'query' => array(
            'destination' => current_path(),
          ),
        )),
      ),
      'class' => array(
        'draggable',
      ),
    );

    // Build rows of the form elements in the table.
    $row_elements[$id] = array(
      'weight' => &$rows[$id]['data'][1]['data'],
      'enabled' => &$rows[$id]['data'][2]['data'],
      'machine_name' => &$rows[$id]['data'][3]['data'],
    );
  }
  $form['grouplayers'] = array(
    '#type' => 'fieldset',
    '#title' => 'Layers',
    '#collapsible' => FALSE,
    '#collapsed' => FALSE,
  );

  // Add the table to the form.
  $form['grouplayers']['table_layers'] = array(
    '#theme' => 'table',
    // The row form elements need to be processed and build,
    // therefore pass them as element children.
    'elements' => $row_elements,
    '#header' => array(
      // We need two empty columns for the weigth field and the cross.
      array(
        'data' => NULL,
        'colspan' => 2,
      ),
      array(
        'data' => t('Enabled'),
        'colspan' => 2,
      ),
      t('Name'),
      t('Machine name'),
      t('Factory service'),
      t('Operations'),
    ),
    '#rows' => $rows,
    '#empty' => t('There are no entries available.'),
    '#attributes' => array(
      'id' => 'entry-order-layers',
    ),
  );
  drupal_add_tabledrag('entry-order-layers', 'order', 'sibling', 'entry-order-weight');
}