<?php
/**
 * view.php
 * 
 * simple view class, template-based.
 * @todo indent markup using tidy?
 * 
 * $Rev$
 * $Author$
 * $Date$
 */
class view
{
	protected $hasLayout;
	private $file;
	
	public function __construct( $file_path ) {
		if(!file_exists($file_path)) {
			throw new Exception('file ' . $file_path . ' does not exist!', 666);
		} else {
			$this->file = $file_path;
		}
	}
	
	/**
	 * Compile the view
	 *
	 * @return $HTMLSource the compiled view
	 */
	public function compile($registry = false) {
		if($registry === false){
			$registry =& registry::getInstance();
		}
		$user =& user::getInstance();
		foreach($registry as $k=>$v){
			$$k = $v;
		}
		ob_start();
		require $this->file;
		$body = ob_get_clean();

		(isset($contentType)) ? http_response::content($contentType) : http_response::content(CONTENT_TYPE);
        
		$isFragment = isset($this->isFragment);
		
		if(defined('LAYOUT') && !$isFragment){
			ob_start();
			require LAYOUT;
			$body = ob_get_clean();
		}
		return $body;
	}
	
	public function isFragment() {
		$this->isFragment = true;
	}
	
	function __toString() {
		return __CLASS__;
	}
}