TRexEditor.php

<?php

namespace Drupal\editor_test\Plugin\Editor;

use Drupal\Core\Form\FormStateInterface;
use Drupal\editor\Entity\Editor;
use Drupal\editor\Plugin\EditorBase;

/**
 * Defines a Tyrannosaurus-Rex powered text editor for testing purposes.
 *
 * @Editor(
 *   id = "trex",
 *   label = @Translation("TRex Editor"),
 *   supports_content_filtering = TRUE,
 *   supports_inline_editing = TRUE,
 *   is_xss_safe = FALSE,
 *   supported_element_types = {
 *     "textarea",
 *   }
 * )
 */
class TRexEditor extends EditorBase {
    
    /**
     * {@inheritdoc}
     */
    public function getDefaultSettings() {
        return [
            'stumpy_arms' => TRUE,
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
        $form['stumpy_arms'] = [
            '#title' => $this->t('Stumpy arms'),
            '#type' => 'checkbox',
            '#default_value' => TRUE,
        ];
        return $form;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getJSSettings(Editor $editor) {
        $js_settings = [];
        $settings = $editor->getSettings();
        if ($settings['stumpy_arms']) {
            $js_settings['doMyArmsLookStumpy'] = TRUE;
        }
        return $js_settings;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getLibraries(Editor $editor) {
        return [
            'editor_test/trex',
        ];
    }

}