NodeContent.php

<?php

namespace Drupal\quicktabs\Plugin\TabType;

use Drupal\Core\StringTranslation\StringTranslationTrait;
use Drupal\quicktabs\TabTypeBase;

/**
 * Provides a 'node content' tab type.
 *
 * @TabType(
 *   id = "node_content",
 *   name = @Translation("node"),
 * )
 */
class NodeContent extends TabTypeBase {
    use StringTranslationTrait;
    
    /**
     * {@inheritdoc}
     */
    public function optionsForm(array $tab) {
        $plugin_id = $this->getPluginDefinition()['id'];
        $form = [];
        $form['nid'] = [
            '#type' => 'textfield',
            '#title' => $this->t('Node'),
            '#description' => $this->t('The node ID of the node.'),
            '#maxlength' => 10,
            '#size' => 20,
            '#default_value' => isset($tab['content'][$plugin_id]['options']['nid']) ? $tab['content'][$plugin_id]['options']['nid'] : '',
        ];
        $display_repository = \Drupal::service('entity_display.repository');
        $view_modes = $display_repository->getViewModes('node');
        $options = [];
        foreach ($view_modes as $view_mode_name => $view_mode) {
            $options[$view_mode_name] = $view_mode['label'];
        }
        $form['view_mode'] = [
            '#type' => 'select',
            '#title' => $this->t('View mode'),
            '#options' => $options,
            '#default_value' => isset($tab['content'][$plugin_id]['options']['view_mode']) ? $tab['content'][$plugin_id]['options']['view_mode'] : 'full',
        ];
        $form['hide_title'] = [
            '#type' => 'checkbox',
            '#title' => $this->t('Hide the title of this node'),
            '#default_value' => isset($tab['content'][$plugin_id]['options']['hide_title']) ? $tab['content'][$plugin_id]['options']['hide_title'] : 1,
        ];
        return $form;
    }
    
    /**
     * {@inheritdoc}
     */
    public function render(array $tab) {
        $options = $tab['content'][$tab['type']]['options'];
        $node = \Drupal::entityTypeManager()->getStorage('node')
            ->load($options['nid']);
        if ($node !== NULL) {
            $access_result = $node->access('view', \Drupal::currentUser(), TRUE);
            // Return empty render array if user doesn't have access.
            if ($access_result->isForbidden()) {
                return [];
            }
            $build = \Drupal::entityTypeManager()->getViewBuilder('node')
                ->view($node, $options['view_mode']);
            if ($options['hide_title']) {
                $build['#node']->setTitle(NULL);
            }
            return $build;
        }
    }

}