vendor/phive/twig-extensions-deferred/src/DeferredExtension.php line 29

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  1. <?php
  3. namespace Phive\Twig\Extensions\Deferred;
  5. use Twig\Extension\AbstractExtension;
  6. use Twig\Template;
  8. class DeferredExtension extends AbstractExtension
  9. {
  10.     private $blocks = [];
  12.     public function getTokenParsers()
  13.     {
  14.         return [new DeferredTokenParser()];
  15.     }
  17.     public function getNodeVisitors()
  18.     {
  19.         return [new DeferredNodeVisitor()];
  20.     }
  22.     public function defer(Template $template, $blockName)
  23.     {
  24.         $templateName = $template->getTemplateName();
  25.         $this->blocks[$templateName][] = $blockName;
  26.         ob_start();
  27.     }
  29.     public function resolve(Template $template, array $context, array $blocks)
  30.     {
  31.         $templateName = $template->getTemplateName();
  32.         if (empty($this->blocks[$templateName])) {
  33.             return;
  34.         }
  36.         while ($blockName = array_pop($this->blocks[$templateName])) {
  37.             $buffer = ob_get_clean();
  39.             $blocks[$blockName] = [$template, 'block_'.$blockName.'_deferred'];
  40.             $template->displayBlock($blockName, $context, $blocks);
  42.             echo $buffer;
  43.         }
  45.         if ($parent = $template->getParent($context)) {
  46.             $this->resolve($parent, $context, $blocks);
  47.         }
  48.     }
  49. }