gistfile1.php

<?php

namespace Digibuzz\CoreBundle\Design;

use Tree\Node\NodeInterface;
use Tree\Node\Node;

use Symfony\Component\Templating\PhpEngine;
use Symfony\Component\Templating\TemplateNameParser;
use Symfony\Component\Templating\Loader\FilesystemLoader;
use Symfony\Component\Templating\DelegatingEngine;
use Symfony\Bridge\Twig\TwigEngine;


class Block extends Node
{

	/**
	 * Template to be rendered
	 */
	protected $templateName = '';
	
	static $blocks = array();

	/**
	 * Block Type, must be an instance of Block
	 * 
	 */
	protected $type = null;

	protected $templating = null;

	public function __construct($name, $type = null, $templateName = '', $children = array())
	{

		if($this->type !== null) {
			$this->type = $type;
		}

		if($templateName != '') {
			$this->templateName = $templateName;	
		}
		
		self::$blocks[$name] = $this;

		parent::__construct($type, $children);
	}

	public function addBlock(NodeInterface $block)
	{
		$this->addChild($block);
		return $this;
	}

	public function getChildHtml($name)
	{

		if(isset(self::$blocks[$name])) {
			$block = self::$blocks[$name];
		}

		if($block->isLeaf()) {
			return $block->render();
		}

		foreach($block->getChildren() as $_block) {
			$out .= $_block->render();
		}

		return $out;
	}

	public function setType(Block $blockType)
	{
		$this->type = $blockType;
		return $this;
	}

	public function setLayout($layout)
	{
		$this->layout = $layout;
	}

	public function getLayout()
	{
		return $this->layout;
	}


	public function removeBlock(NodeInterface $block)
	{
		$this->removeChild($block);
		return $this;
	}

	public function getTemplateEngine()
	{
		$loader = new FilesystemLoader(__DIR__.'/views/%name%');
		$templating = new PhpEngine(new TemplateNameParser(), $loader);
		$engines[] = $templating;
		$delegationEngine = new DelegatingEngine($engines);
		return $delegationEngine;
	}

	public function setTemplateEngineService($service)
	{
		$this->templating  = $service;
	}

	public function setTemplate($templateName)
	{
		
	}

	/**
	 * Pass the Block type if given and render the template
	 * 
	 */
	public function render()
	{
		$params = array('this' => $this);
		//$this->templating = $this->getLayout()->getTemplateEngineService();
		$this->templating = $this->getTemplateEngine();
		return $this->templating->render($this->templateName, $params);
	}
}