Tinymce doesn't use theme css when page is previewed

Ok, this problem appears with all editors because it's a problem of drupal :

- When we are in add / edit mode for a node, theme is initialized BEFORE wysiwyg_api module calls wysiwyg_get_css so drupal_add_css returns the correct array of css
- When we are in preview mode for a node, theme is initialized AFTER wysiwyg_api module calls wysiwyg_get_css so drupal_add_css returns an array of css without theme css

So here's a patch in wysiwyg.module to correct that (but i think this must be patched in drupal core) :

In wysiwyg_get_css of wysiwyg.module, replace :

  foreach (drupal_add_css() as $media => $css) {
    if ($media != 'print') {
      foreach ($css['theme'] as $filepath => $preprocess) {
        $files[] = base_path() . $filepath;
      }
    }
  }

by :

  for ($x = 0; $x < 2; ++$x) {
    foreach (drupal_add_css() as $media => $css) {
      if ($media != 'print') {
        foreach ($css['theme'] as $filepath => $preprocess) {
          $files[] = base_path() . $filepath;
        }
      }
    }
    
    // Verify if not empty
    if (!(empty($files))) {
      break;
    }
    
    // Initialize theme and restart process
    init_theme();
  }