<?php
/*
	yojimg.net PHP templating engine.
	
	By default, an instance of class Page will use as follows:
	
		layout template: (HTML root)/templates/std.tmpl
		LHS navbar file: (HTML root)/(filepath)/navbar.inc
	
	Alternate layout templates and/or navbar includes can be provided by passing 
	the filename into the constructor.

	Breadcrumb navigation is automatically generated and inserted into the page 
	headers.
	
*/

class Page
{
	var $template;
	var $content;
	var $output;
	var $path;
      
	function Page($title = '', $template = 'std.tmpl', $navbarFile = 'navbar.inc')
	{
		$root = $_SERVER['DOCUMENT_ROOT'];

		$template = "$root/templates/$template";

		if (file_exists($template))
			$this->template = $template;
		else 
			die("Template file $template not found.");


		$path = explode('/', $_SERVER['SCRIPT_NAME']);
		array_pop($path);
		array_shift($path);
		$walktree = array();

		$this->setChannel(implode('/', $path));

		foreach($path as $p) {
			array_push($walktree, implode('/', $path));
			array_pop($path);
		}

		$walktree = array_reverse($walktree);

		$this->setTitle($title);
		$this->setNavbar($root . '/' . $this->get('channel') . '/' . $navbarFile);

		// adding these to the content hash will make them visible within the template
		$this->set('docroot', $root);
		$this->set('template', $template);
		$this->set('path', $path);
		$this->set('walktree', $walktree);
	}
  
	function set($name, $value) {
		$this->content[$name] = $value;
	}

	function get($name) {
		$value = $this->content[$name];
		return($value);
	}

  
	function setTitle($value) {
		$this->set('title', $value);
	}

	function setBody($value) {
		$this->set('body', $value);
	}

	function setNavbar($navbar) {
		$this->set('navbar', $navbar);
	}

	function setChannel($value) {
		$this->set('channel',$value);
	}


	function display($body) {
	
		$this->setBody($body);
	
		extract($this->content);
		ob_start();
		include($this->template);
		$this->output = ob_get_contents();
		ob_end_clean();    
	
		echo($this->output);    
	}
	

}
?>