Method prepareOptions

/**
 * Prepare options for this button.
 *
 * @param   array  &$options  The options about this button.
 *
 * @return  void
 *
 * @since  4.0.0
 */
protected function prepareOptions(array &$options)
{
    $options['name'] = $this->getName();
    $options['text'] = Text::_($this->getText());
    $options['class'] = $this->getIcon() ?: $this->fetchIconClass($this->getName());
    $options['id'] = $this->ensureUniqueId($this->fetchId());
    if (!empty($options['is_child'])) {
        $options['tagName'] = 'button';
        $options['btnClass'] = ($options['button_class'] ?? '') . ' dropdown-item';
        $options['attributes']['type'] = 'button';
        if ($options['is_first_child']) {
            $options['btnClass'] .= ' first';
        }
        if ($options['is_last_child']) {
            $options['btnClass'] .= ' last';
        }
    } else {
        $options['tagName'] = 'button';
        $options['btnClass'] = $options['button_class'] ?? 'btn btn-primary';
        $options['attributes']['type'] = 'button';
    }
}