BasicSettingsForm::buildForm

public BasicSettingsForm::buildForm(array $form, FormStateInterface $form_state)

public function buildForm(array $form, FormStateInterface $form_state) {
  $form = parent::buildForm($form, $form_state);

  $config = $this->config('views.settings');
  $options = array();
  foreach ($this->themeHandler->listInfo() as $name => $theme) {
    if ($theme->status) {
      $options[$name] = $theme->info['name'];
    }
  }

  // This is not currently a fieldset but we may want it to be later,
  // so this will make it easier to change if we do.
  $form['basic'] = array();

  $form['basic']['ui_show_master_display'] = array(
    '#type' => 'checkbox',
    '#title' => $this->t('Always show the master (default) display'),
    '#default_value' => $config->get('ui.show.master_display'),
  );

  $form['basic']['ui_show_advanced_column'] = array(
    '#type' => 'checkbox',
    '#title' => $this->t('Always show advanced display settings'),
    '#default_value' => $config->get('ui.show.advanced_column'),
  );

  $form['basic']['ui_show_display_embed'] = array(
    '#type' => 'checkbox',
    '#title' => t('Allow embedded displays'),
    '#description' => t('Embedded displays can be used in code via views_embed_view().'),
    '#default_value' => $config->get('ui.show.display_embed'),
  );

  $form['basic']['ui_exposed_filter_any_label'] = array(
    '#type' => 'select',
    '#title' => $this->t('Label for "Any" value on non-required single-select exposed filters'),
    '#options' => array('old_any' => '<Any>', 'new_any' => $this->t('- Any -')),
    '#default_value' => $config->get('ui.exposed_filter_any_label'),
  );

  $form['live_preview'] = array(
    '#type' => 'details',
    '#title' => $this->t('Live preview settings'),
    '#open' => TRUE,
  );

  $form['live_preview']['ui_always_live_preview'] = array(
    '#type' => 'checkbox',
    '#title' => $this->t('Automatically update preview on changes'),
    '#default_value' => $config->get('ui.always_live_preview'),
  );

  $form['live_preview']['ui_show_preview_information'] = array(
    '#type' => 'checkbox',
    '#title' => $this->t('Show information and statistics about the view during live preview'),
    '#default_value' => $config->get('ui.show.preview_information'),
  );

  $form['live_preview']['options'] = array(
    '#type' => 'container',
    '#states' => array(
      'visible' => array(
        ':input[name="ui_show_preview_information"]' => array('checked' => TRUE),
      ),
    ),
  );

  $form['live_preview']['options']['ui_show_sql_query_enabled'] = array(
    '#type' => 'checkbox',
    '#title' => $this->t('Show the SQL query'),
    '#default_value' => $config->get('ui.show.sql_query.enabled'),
  );

  $form['live_preview']['options']['ui_show_sql_query_where'] = array(
    '#type' => 'radios',
    '#states' => array(
      'visible' => array(
        ':input[name="ui_show_sql_query_enabled"]' => array('checked' => TRUE),
      ),
    ),
    '#title' => t('Show SQL query'),
    '#options' => array(
      'above' => $this->t('Above the preview'),
      'below' => $this->t('Below the preview'),
    ),
    '#default_value' => $config->get('ui.show.sql_query.where'),
  );

  $form['live_preview']['options']['ui_show_performance_statistics'] = array(
    '#type' => 'checkbox',
    '#title' => $this->t('Show performance statistics'),
    '#default_value' => $config->get('ui.show.performance_statistics'),
  );

  $form['live_preview']['options']['ui_show_additional_queries'] = array(
    '#type' => 'checkbox',
    '#title' => $this->t('Show other queries run during render during live preview'),
    '#description' => $this->t("Drupal has the potential to run many queries while a view is being rendered. Checking this box will display every query run during view render as part of the live preview."),
    '#default_value' => $config->get('ui.show.additional_queries'),
  );

  return $form;
}