public function LeafletDemoForm::buildForm in Leaflet More Maps 8

Same name and namespace in other branches

1. 2.1.x leaflet_demo/src/Form/LeafletDemoForm.php \Drupal\leaflet_demo\Form\LeafletDemoForm::buildForm()

Form constructor.

Parameters

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

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Return value

array The form structure.

Overrides FormInterface::buildForm

File

leaflet_demo/src/Form/LeafletDemoForm.php, line 76

Class

LeafletDemoForm

Class LeafletDemoForm.

Namespace

Drupal\leaflet_demo\Form

Code

public function buildForm(array $form, FormStateInterface $form_state) {
  global $base_url;
  $values = $form_state
    ->getUserInput();
  if (empty($values['latitude'])) {
    $latitude = LeafletDemoForm::LEAFLET_DEMO_DEFAULT_LAT;
    $longitude = LeafletDemoForm::LEAFLET_DEMO_DEFAULT_LNG;
  }
  else {
    $latitude = $values['latitude'];
    $longitude = $values['longitude'];
  }
  $zoom = isset($values['zoom']) ? $values['zoom'] : LeafletDemoForm::LEAFLET_DEMO_DEFAULT_ZOOM;
  $form['demo_map_parameters'] = [
    '#type' => 'details',
    '#open' => TRUE,
    '#title' => $this
      ->t('Map parameters'),
    '#description' => $this
      ->t('All maps below are centered on the same latitude, longitude and have the same initial zoom level.<br/>You may pan/drag and zoom each map individually.'),
  ];
  $form['demo_map_parameters']['latitude'] = [
    '#type' => 'textfield',
    '#title' => $this
      ->t('Latitude'),
    '#description' => $this
      ->t('-90 .. 90 degrees'),
    '#size' => 12,
    '#default_value' => $latitude,
  ];
  $form['demo_map_parameters']['longitude'] = [
    '#type' => 'textfield',
    '#title' => $this
      ->t('Longitude'),
    '#description' => $this
      ->t('-180 .. 180 degrees'),
    '#size' => 12,
    '#default_value' => $longitude,
  ];
  $form['demo_map_parameters']['zoom'] = [
    '#type' => 'textfield',
    '#title' => $this
      ->t('Zoom'),
    '#field_suffix' => $this
      ->t('(0..18)'),
    '#description' => $this
      ->t('Some zoom levels may not be available in some maps.'),
    '#size' => 2,
    '#default_value' => $zoom,
  ];
  $form['demo_map_parameters']['submit'] = [
    '#type' => 'submit',
    '#value' => $this
      ->t('Submit map parameters'),
  ];
  $form['#attached']['library'][] = 'leaflet_demo/leaflet_demo_form';
  $form['demo_maps'] = [
    '#type' => 'details',
    '#open' => TRUE,
    '#title' => $this
      ->t('All available maps'),
    '#description' => '<em>' . $this
      ->t('If some maps do not display, this may be due to a missing or invalid map provider API key.') . '<br/>' . $this
      ->t('You can enter API keys <a href="@config_page">here</a>.', [
      '@config_page' => $base_url . '/admin/config/system/leaflet-more-maps/',
    ]) . '</em>',
  ];
  $form['demo_maps'] = array_merge($form['demo_maps'], $this
    ->outputDemoMaps($latitude, $longitude, $zoom));
  return $form;
}