gistfile1.php

<?php

function layout_page_pre_render($page) {
  global $theme;

  // @todo Don't hard-code the bartik__bartik layout; let that be administrator
  //   configurable.
  if ($theme == 'bartik') {
    $layout_manager = drupal_container()->get('plugin.manager.layout');
    $conf = array(
      'regions' => array(
        'content' => array(
          'plugin.core.block.bartik.main_content' => array(),
        ),
        'help' => array(
          'plugin.core.block.bartik.help_text' => array(),
        ),
        'sidebar_first' => array(
          'plugin.core.block.bartik.search_form' => array(),
          'plugin.core.block.bartik.user_login' => array(),
          'plugin.core.block.bartik.user_online' => array(),
        ),
        'sidebar_second' => array(
          'plugin.core.block.bartik.user_menu' => array(),
        ),
        'footer' => array(
          'plugin.core.block.bartik.powered_by' => array(),
        ),
      )
    );
    /*$conf['regions']['sidebar_first']['user_online_block'] = array(
      'subject' => t("Who else is online"),
      'seconds_online' => 450,
      'max_list_count' => 5,
    );*/
    $layout = $layout_manager->createInstance('default_layout:bartik__bartik', $conf);
    $regions = array();
    // When drupal_render_page() goes away, so will this, but in the meantime,
    // this is how we replace page.tpl.php with the layout.
    $page['#children'] = $layout->renderLayout(FALSE, $regions);
    $page['#theme'] = NULL;
  }

  return $page;
}