namespace Drupalamu_dud_custom_filtersPluginFilter;

use DrupalComponentUtilityHtml;
use DrupalfilterFilterProcessResult;
use DrupalfilterPluginFilterBase;

/**
 * Provides a filter to align elements.
 *
 * @Filter(
 *   id = "iframe",
 *   title = @Translation("iframe"),
 *   description = @Translation(("restrict iframe to 100% height for responsiveness")),
 *   type = DrupalfilterPluginFilterInterface::TYPE_TRANSFORM_REVERSIBLE
 * )
 */
class AmuDudFilters extends FilterBase {

    /**
     * {@inheritdoc}
     */
    public function process($text, $langcode) {
        $result = new FilterProcessResult($text);

        if (stristr($text, 'data-align') !== FALSE) {
            $dom = Html::load($text);
            $result->setProcessedText(Html::serialize($dom));
        }

        return $result;
    }