public function OpenlayersLayerFormBase::buildForm in Openlayers 8.4

Overrides Drupal\Core\Entity\EntityFormController::form().

Builds the entity add/edit form.

Parameters

array $form: An associative array containing the structure of the form.

\Drupal\Core\Form\FormStateInterface $form_state: An associative array containing the current state of the form.

Return value

array An associative array containing the openlayers_layer add/edit form.

Overrides EntityForm::buildForm

File

src/Form/OpenlayersLayerFormBase.php, line 78

Class

OpenlayersLayerFormBase

Class OpenlayersLayerFormBase.

Namespace

Drupal\openlayers\Form

Code

public function buildForm(array $form, FormStateInterface $form_state) {

  // Get anything we need from the base class.
  $form = parent::buildForm($form, $form_state);

  // Drupal provides the entity to us as a class variable. If this is an
  // existing entity, it will be populated with existing values as class
  // variables. If this is a new entity, it will be a new object with the
  // class of our entity. Drupal knows which class to call from the
  // annotation on our Layer class.
  $ol_layer = $this->entity;
  $sourceNames = \Drupal::service('config.storage')
    ->listAll('openlayers.openlayers_source');
  $source_options = [];
  foreach ($sourceNames as $sourceName) {
    $sourceLabel = \Drupal::config($sourceName)
      ->get('label');
    $sourceName = str_replace('openlayers.openlayers_source.', '', $sourceName);
    $source_options[$sourceName] = $sourceLabel;
  }
  $type_options = [
    'image' => 'Image',
    'tile' => 'Tile',
    'vector' => 'Vector',
  ];
  $source_options = [];
  $sources = $this->entity
    ->getAllSources();
  foreach ($sources as $source => $definition) {
    $source_options[$source] = $definition;
  }

  // Build the form.
  $form['label'] = [
    '#type' => 'textfield',
    '#title' => $this
      ->t('Label'),
    '#maxlength' => 255,
    '#default_value' => $ol_layer
      ->label(),
    '#required' => TRUE,
  ];
  $form['id'] = [
    '#type' => 'machine_name',
    '#title' => $this
      ->t('Machine name'),
    '#default_value' => $ol_layer
      ->id(),
    '#machine_name' => [
      'exists' => [
        $this,
        'exists',
      ],
      'replace_pattern' => '([^a-z0-9_]+)|(^custom$)',
      'error' => 'The machine-readable name must be unique, and can only contain lowercase letters, numbers, and underscores. Additionally, it can not be the reserved word "custom".',
    ],
    '#disabled' => !$ol_layer
      ->isNew(),
  ];
  $form['layer_type'] = [
    '#title' => t('Layer Type'),
    '#type' => 'select',
    '#description' => t(''),
    '#options' => $type_options,
    '#default_value' => isset($ol_layer->layer_type) ? $ol_layer->layer_type : null,
    '#required' => true,
  ];
  $form['source'] = array(
    '#type' => 'fieldset',
    '#title' => $this
      ->t('Source'),
  );
  $form['source']['source'] = [
    '#title' => t('Source'),
    '#type' => 'select',
    '#description' => t(''),
    '#options' => $source_options,
    '#default_value' => isset($ol_layer->source) ? $ol_layer->source : null,
  ];

  // Return the form.
  return $form;
}