class PagerBullets

class PagerBullets extends ViewsSlideshowWidgetBase {
    
    /**
     * {@inheritdoc}
     */
    public function defaultConfiguration() {
        return [
            'views_slideshow_pager_bullets_hover' => [
                'default' => 0,
            ],
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
        // Add field to see if they would like to activate slide and pause on pager
        // hover.
        $form['views_slideshow_pager_bullets_hover'] = [
            '#type' => 'checkbox',
            '#title' => $this->t('Activate Slide and Pause on Pager Hover'),
            '#default_value' => $this->getConfiguration()['views_slideshow_pager_bullets_hover'],
            '#description' => $this->t('Should the slide be activated and paused when hovering over a pager item.'),
            '#states' => [
                'visible' => [
                    ':input[name="' . $this->getConfiguration()['dependency'] . '[enable]"]' => [
                        'checked' => TRUE,
                    ],
                    ':input[name="' . $this->getConfiguration()['dependency'] . '[type]"]' => [
                        'value' => 'views_slideshow_pager_bullets',
                    ],
                ],
            ],
        ];
        return $form;
    }

}