<?php

/**

* @version		$Id: head.php 10707 2008-08-21 09:52:47Z eddieajau $

* @package		Joomla.Framework

* @subpackage	Document

* @copyright	Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved.

* @license		GNU/GPL, see LICENSE.php

* Joomla! is free software. This version may have been modified pursuant

* to the GNU General Public License, and as distributed it includes or

* is derivative of works licensed under the GNU General Public License or

* other free or open source software licenses.

* See COPYRIGHT.php for copyright notices and details.

*/



// Check to ensure this file is within the rest of the framework

defined('JPATH_BASE') or die();



/**

 * JDocument head renderer

 *

 * @package		Joomla.Framework

 * @subpackage	Document

 * @since		1.5

 */

class JDocumentRendererHead extends JDocumentRenderer

{

	/**

	 * Renders the document head and returns the results as a string

	 *

	 * @access public

	 * @param string 	$name		(unused)

	 * @param array 	$params		Associative array of values

	 * @return string	The output of the script

	 */

	function render( $head = null, $params = array(), $content = null )

	{

		ob_start();



		echo $this->fetchHead($this->_doc);



		$contents = ob_get_contents();

		ob_end_clean();



		return $contents;

	}



	/**

	 * Generates the head html and return the results as a string

	 *

	 * @access public

	 * @return string

	 */

	function fetchHead(&$document)

	{

		// get line endings

		$lnEnd = $document->_getLineEnd();

		$tab = $document->_getTab();



		$tagEnd	= ' />';



		$strHtml = '';



		// Generate base tag (need to happen first)

		$base = $document->getBase();

		if(!empty($base)) {

			$strHtml .= $tab.'<base href="'.$document->getBase().'" />'.$lnEnd;

		}



		// Generate META tags (needs to happen as early as possible in the head)

		foreach ($document->_metaTags as $type => $tag)

		{

			foreach ($tag as $name => $content)

			{

				if ($type == 'http-equiv') {

					$strHtml .= $tab.'<meta http-equiv="'.$name.'" content="'.$content.'"'.$tagEnd.$lnEnd;

				} elseif ($type == 'standard') {

					$strHtml .= $tab.'<meta name="'.$name.'" content="'.$content.'"'.$tagEnd.$lnEnd;

				}

			}

		}



		$strHtml .= $tab.'<meta name="description" content="'.$document->getDescription().'" />'.$lnEnd;

		$strHtml .= $tab.'<meta name="generator" content="'.$document->getGenerator().'" />'.$lnEnd;



		$strHtml .= $tab.'<title>'.htmlspecialchars($document->getTitle()).'</title>'.$lnEnd;



		// Generate link declarations

		foreach ($document->_links as $link) {

			$strHtml .= $tab.$link.$tagEnd.$lnEnd;

		}



		// Generate stylesheet links

		foreach ($document->_styleSheets as $strSrc => $strAttr )

		{

			$strHtml .= $tab . '<link rel="stylesheet" href="'.$strSrc.'" type="'.$strAttr['mime'].'"';

			if (!is_null($strAttr['media'])){

				$strHtml .= ' media="'.$strAttr['media'].'" ';

			}

			if ($temp = JArrayHelper::toString($strAttr['attribs'])) {

				$strHtml .= ' '.$temp;;

			}

			$strHtml .= $tagEnd.$lnEnd;

		}



		// Generate stylesheet declarations

		foreach ($document->_style as $type => $content)

		{

			$strHtml .= $tab.'<style type="'.$type.'">'.$lnEnd;



			// This is for full XHTML support.

			if ($document->_mime == 'text/html' ) {

				$strHtml .= $tab.$tab.'<!--'.$lnEnd;

			} else {

				$strHtml .= $tab.$tab.'<![CDATA['.$lnEnd;

			}



			$strHtml .= $content . $lnEnd;



			// See above note

			if ($document->_mime == 'text/html' ) {

				$strHtml .= $tab.$tab.'-->'.$lnEnd;

			} else {

				$strHtml .= $tab.$tab.']]>'.$lnEnd;

			}

			$strHtml .= $tab.'</style>'.$lnEnd;

		}



		// Generate script file links

		foreach ($document->_scripts as $strSrc => $strType) {

			$strHtml .= $tab.'<script type="'.$strType.'" src="'.$strSrc.'"></script>'.$lnEnd;

		}



		// Generate script declarations

		foreach ($document->_script as $type => $content)

		{

			$strHtml .= $tab.'<script type="'.$type.'">'.$lnEnd;



			// This is for full XHTML support.

			if ($document->_mime != 'text/html' ) {

				$strHtml .= $tab.$tab.'<![CDATA['.$lnEnd;

			}



			$strHtml .= $content.$lnEnd;



			// See above note

			if ($document->_mime != 'text/html' ) {

				$strHtml .= $tab.$tab.'// ]]>'.$lnEnd;

			}

			$strHtml .= $tab.'</script>'.$lnEnd;

		}



		foreach($document->_custom as $custom) {

			$strHtml .= $tab.$custom.$lnEnd;

		}



		return $strHtml;

	}

}