Drupal 7 Webform template suggestions

function qc_webforms_theme_registry_alter(&$theme_registry) {
 unset($theme_registry['webform_form']['pattern']);
}

function qc_webforms_preprocess(&$vars, $hook) {
  switch ($hook) {
    case 'webform_form':
      $vars['theme_hook_suggestions'][] = 'webform_form';
      if(isset($vars['theme_hook_suggestion'])){
        $vars['theme_hook_suggestions'][] = $vars['theme_hook_suggestion'];
        $vars['theme_hook_suggestion'] = null;
      }else{
        $vars['theme_hook_suggestions'][] = 'webform_form_' . $vars['form']['#node']->nid;
      }

      $vars['theme_hook_suggestions'][] = 'webform_form__' . $vars['form']['#node']->webform['machine_name'];
      break;
    case 'node':
      $view_mode = $vars['view_mode'];
      if(isset($vars['webform'])){
        $vars['theme_hook_suggestion'] = null;
        $vars['theme_hook_suggestions'][] = 'node__webform__' . $vars['webform']['machine_name'];
        $vars['theme_hook_suggestions'][] = 'node__webform__' . $vars['webform']['machine_name'] . '__' . $view_mode;
      }
      break;
  }
}