gistfile1.php

<?php

protected function renderBlocks(Request $request, BoundDisplayInterface $display) {
    $blockFragments = array();
    foreach ($display->getAllOuterBlockConfig() as $id => $config) {
      $block = $display->getBlock($id);


      if ($block instanceof SystemMainBlock) {
        $block->setControllerClosure($request->attributes->get('_content_closure'));
      }
      
      $block_config = $block->getConfig();
      foreach ($block_config['context'] as $local => $parent) {
        $block->setContextValue($local, $display->getContextValue($parent));
      }

      $munged_request = clone $request;
      // @todo muck with the Request here to get it to where we need
      $blockFragments[$id] = $this->renderingStrategies[$config['strategy']]->render($block, $munged_request);
    }

    return $blockFragments;
  }