UnicornEditor.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 Unicorn-powered text editor for Drupal (for testing purposes).
 *
 * @Editor(
 *   id = "unicorn",
 *   label = @Translation("Unicorn Editor"),
 *   supports_content_filtering = TRUE,
 *   supports_inline_editing = TRUE,
 *   is_xss_safe = FALSE,
 *   supported_element_types = {
 *     "textarea",
 *     "textfield",
 *   }
 * )
 */
class UnicornEditor extends EditorBase {
    
    /**
     * {@inheritdoc}
     */
    public function getDefaultSettings() {
        return [
            'ponies_too' => TRUE,
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
        $form['ponies_too'] = [
            '#title' => t('Pony mode'),
            '#type' => 'checkbox',
            '#default_value' => TRUE,
        ];
        return $form;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getJSSettings(Editor $editor) {
        $js_settings = [];
        $settings = $editor->getSettings();
        if ($settings['ponies_too']) {
            $js_settings['ponyModeEnabled'] = TRUE;
        }
        return $js_settings;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getLibraries(Editor $editor) {
        return [
            'editor_test/unicorn',
        ];
    }

}