public function Visualization::buildOptionsForm in Visualization API 8

Returns the options form.

Overrides StylePluginBase::buildOptionsForm

File

src/Plugin/views/style/Visualization.php, line 79

Definition of Drupal\visualization\Plugin\views\style\Visualization.

Class

Visualization

Style plugin uses views ui to configure views data for rendering charts.

Namespace

Drupal\visualization\Plugin\views\style

Code

public function buildOptionsForm(&$form, FormStateInterface $form_state) {
  parent::buildOptionsForm($form, $form_state);
  $handlers = $this->displayHandler
    ->getHandlers('field');
  $fields = $this->displayHandler
    ->getFieldLabels();
  $form['type'] = array(
    '#type' => 'select',
    '#title' => t('Chart type'),
    '#options' => array(
      'line' => 'Line chart',
      'pie' => 'Pie chart',
      'bar' => 'Bar chart',
      'column' => 'Column chart',
    ),
    '#default_value' => $this->options['type'],
    '#empty_value' => FALSE,
  );
  $form['fields'] = array(
    '#type' => 'fieldset',
    '#title' => t('Field settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );
  foreach ($fields as $field => $column) {
    $handler = $handlers[$field];
    $form['fields'][$field] = array(
      '#type' => 'details',
      '#title' => SafeMarkup::checkPlain($field),
      '#collapsible' => TRUE,
      '#collapsed' => empty($this->options['fields'][$field]),
    );
    $form['fields'][$field]['enabled'] = array(
      '#type' => 'checkbox',
      '#title' => t('Enable this field in the chart'),
      '#default_value' => empty($this->options['fields'][$field]['enabled']) ? FALSE : $this->options['fields'][$field]['enabled'],
      '#dependency' => array(
        'style_options',
        'fields',
        $field,
        'type',
      ),
    );
    if ($handler
      ->clickSortable()) {
      $form['fields'][$field]['sort'] = array(
        '#type' => 'select',
        '#title' => t('Sort'),
        '#options' => array(
          'DESC' => t('Descending'),
          'ASC' => t('Ascending'),
        ),
        '#default_value' => empty($this->options['fields'][$field]['sort']) ? FALSE : $this->options['fields'][$field]['sort'],
        '#empty_value' => FALSE,
      );
    }
  }
  $form['xAxis'] = array(
    '#type' => 'fieldset',
    '#title' => t('X-axis settings'),
    '#collapsible' => TRUE,
    '#collapsed' => !empty($this->options['xAxis']['labelField']) || !empty($this->options['xAxis']['invert']),
  );
  $form['xAxis']['labelField'] = array(
    '#type' => 'select',
    '#title' => t('X-axis labels'),
    '#options' => $fields,
    '#default_value' => $this->options['xAxis']['labelField'],
    '#empty_value' => FALSE,
  );
  $form['xAxis']['invert'] = array(
    '#type' => 'checkbox',
    '#title' => t('Should the x-axis get inverted?'),
    '#default_value' => $this->options['xAxis']['invert'],
  );
  $form['yAxis'] = array(
    '#type' => 'fieldset',
    '#title' => t('Y-axis settings'),
    '#collapsible' => TRUE,
    '#collapsed' => empty($this->options['yAxis']['title']),
  );
  $form['yAxis']['title'] = array(
    '#type' => 'textfield',
    '#title' => t('Y-axis title'),
    '#default_value' => $this->options['yAxis']['title'],
  );
}