Text.php

<?php

namespace Drupal\views\Plugin\views\area;

use Drupal\Core\Form\FormStateInterface;

/**
 * Views area text handler.
 *
 * @ingroup views_area_handlers
 *
 * @ViewsArea("text")
 */
class Text extends TokenizeAreaPluginBase {
    
    /**
     * {@inheritdoc}
     */
    protected function defineOptions() {
        $options = parent::defineOptions();
        $options['content'] = [
            'contains' => [
                'value' => [
                    'default' => '',
                ],
                'format' => [
                    'default' => NULL,
                ],
            ],
        ];
        return $options;
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildOptionsForm(&$form, FormStateInterface $form_state) {
        parent::buildOptionsForm($form, $form_state);
        $form['content'] = [
            '#title' => $this->t('Content'),
            '#type' => 'text_format',
            '#default_value' => $this->options['content']['value'],
            '#rows' => 6,
            '#format' => isset($this->options['content']['format']) ? $this->options['content']['format'] : filter_default_format(),
            '#editor' => FALSE,
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public function preQuery() {
        $content = $this->options['content']['value'];
        // Check for tokens that require a total row count.
        if (strpos($content, '[view:page-count]') !== FALSE || strpos($content, '[view:total-rows]') !== FALSE) {
            $this->view->get_total_rows = TRUE;
        }
    }
    
    /**
     * {@inheritdoc}
     */
    public function render($empty = FALSE) {
        $format = isset($this->options['content']['format']) ? $this->options['content']['format'] : filter_default_format();
        if (!$empty || !empty($this->options['empty'])) {
            return [
                '#type' => 'processed_text',
                '#text' => $this->tokenizeValue($this->options['content']['value']),
                '#format' => $format,
            ];
        }
        return [];
    }

}