sitestudio_legacy_ckeditor.module

<?php

/**
 * @file
 * Provides integration CKEditor 4 & Site Studio.
 */

use Drupal\Core\Url;

/**
 * Implements hook_help().
 */
function sitestudio_legacy_ckeditor_help($route_name) {
  switch ($route_name) {
    case 'help.page.sitestudio_legacy_ckeditor':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('This module provides deprecated CKEditor 4 support for Site Studio.') . '</p>';
      $output .= '<p><ul>';
      $output .= '  <li>Provides Site Studio CKEditor 4 plugins.</li>';
      $output .= '  <li>Provides Site Studio CSS to CKEditor 4.</li>';
      $output .= '</ul></p>';
      $output .= '<p><a href="https://sitestudiodocs.acquia.com/user-guide/using-ckeditor-legacy-module">https://sitestudiodocs.acquia.com/user-guide/using-ckeditor-legacy-module</a></p>';
      return $output;
  }
}

/**
 * Implements hook_ckeditor_css_alter().
 */
function sitestudio_legacy_ckeditor_ckeditor_css_alter(&$css, $editor) {
  // Attach reset, plugin, base, theme, icon and fonts css files to ckeditor.
  $base_styles_edit_route = \Drupal::service('router.route_provider')
    ->getRoutesByNames(['entity.cohesion_base_styles.edit_form']);
  if (!(count($base_styles_edit_route) === 1)) {
    return;
  }

  $body_route = Url::fromRoute('entity.cohesion_base_styles.edit_form', ['cohesion_base_styles' => 'body']);
  $current_path = $body_route->isRouted() ? Url::fromRoute('<current>') : NULL;

  // If paths don't match.
  if ($current_path->getInternalPath() != $body_route->getInternalPath()) {

    try {
      // If the editor is set to "Site Studio" text format.
      if ($editor->getFilterFormat() && $editor->getFilterFormat()
        ->get('format') == 'cohesion') {
        $wysiwyg_cache_token = \Drupal::keyValue('cohesion.wysiwyg_cache_token');
        $wysiwyg_cache_buster = $wysiwyg_cache_token->get('cache_token') ? '?_t=' . $wysiwyg_cache_token->get('cache_token') : '';
        // Reset and ckeditor specific styles.
        $css[] = \Drupal::service('extension.path.resolver')->getPath('module', 'cohesion') . '/css/reset.css' . $wysiwyg_cache_buster;
        $css[] = \Drupal::service('extension.path.resolver')->getPath('module', 'cohesion') . '/css/plugin-styles.css' . $wysiwyg_cache_buster;

        $default_theme_id = \Drupal::service('theme_handler')->getDefault();

        if (\Drupal::service('cohesion.utils')->themeHasCohesionEnabled($default_theme_id)) {
          $css_base_filename = \Drupal::service('cohesion.local_files_manager')
            ->getStyleSheetFilename('base', $default_theme_id, TRUE);
          $css_theme_filename = \Drupal::service('cohesion.local_files_manager')
            ->getStyleSheetFilename('theme', $default_theme_id, TRUE);
          // Generated stylesheets.
          $css[] = \Drupal::service('file_url_generator')->generateAbsoluteString($css_base_filename) . $wysiwyg_cache_buster;
          $css[] = \Drupal::service('file_url_generator')->generateAbsoluteString($css_theme_filename) . $wysiwyg_cache_buster;

        }
        // Add the body reset stylesheet.
        $css[] = \Drupal::service('extension.path.resolver')->getPath('module', 'cohesion') . '/css/cohesion-body-reset.css' . $wysiwyg_cache_buster;
      }
    } catch (\Exception $e) {

    }
  }

  // Icons and font libraries
  if (($font_libraries = \Drupal::service('settings.endpoint.utils')
    ->siteLibraries('font_libraries'))) {
    $css = array_merge($css, $font_libraries);
  }

  if (($icon_libraries = \Drupal::service('settings.endpoint.utils')
    ->siteLibraries('icon_libraries'))) {
    $css = array_merge($css, $icon_libraries);
  }
  $css = array_filter($css);
  \Drupal::service('router.builder')->rebuildIfNeeded();
}