Markup.php

<?php

namespace Drupal\views\Plugin\views\field;

use Drupal\views\Attribute\ViewsField;
use Drupal\views\Plugin\views\display\DisplayPluginBase;
use Drupal\views\ResultRow;
use Drupal\views\ViewExecutable;

/**
 * Handler to run a field through check_markup, using a companion format field.
 *
 * - format: (REQUIRED) Either a string format id to use for this field or an
 *           array('field' => {$field}) where $field is the field in this table
 *           used to control the format such as the 'format' field in the node,
 *           which goes with the 'body' field.
 *
 * @ingroup views_field_handlers
 */
class Markup extends FieldPluginBase {
  
  /**
   * The format to use for this field.
   */
  public string $format;
  
  /**
   * {@inheritdoc}
   */
  public function init(ViewExecutable $view, DisplayPluginBase $display, ?array &$options = NULL) {
    parent::init($view, $display, $options);
    $this->format = $this->definition['format'];
    $this->additional_fields = [];
    if (is_array($this->format)) {
      $this->additional_fields['format'] = $this->format;
    }
  }
  
  /**
   * {@inheritdoc}
   */
  public function render(ResultRow $values) {
    $value = $this->getValue($values);
    if (is_array($this->format)) {
      $format = $this->getValue($values, 'format');
    }
    else {
      $format = $this->format;
    }
    if ($value) {
      $value = str_replace('<!--break-->', '', $value);
      return check_markup($value, $format);
    }
  }
  
  /**
   * {@inheritdoc}
   */
  public function elementType($none_supported = FALSE, $default_empty = FALSE, $inline = FALSE) {
    if ($inline) {
      return 'span';
    }
    if (isset($this->definition['element type'])) {
      return $this->definition['element type'];
    }
    return 'div';
  }

}