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   1  <?php
   2  /**
   3  * @version        $Id: head.php 21074 2011-04-04 16:51:40Z dextercowley $
   4  * @package        Joomla.Framework
   5  * @subpackage    Document
   6  * @copyright    Copyright (C) 2005 - 2010 Open Source Matters. All rights reserved.
   7  * @license        GNU/GPL, see LICENSE.php
   8  * Joomla! is free software. This version may have been modified pursuant
   9  * to the GNU General Public License, and as distributed it includes or
  10  * is derivative of works licensed under the GNU General Public License or
  11  * other free or open source software licenses.
  12  * See COPYRIGHT.php for copyright notices and details.
  13  */
  14  
  15  // Check to ensure this file is within the rest of the framework
  16  defined('JPATH_BASE') or die();
  17  
  18  /**
  19   * JDocument head renderer
  20   *
  21   * @package        Joomla.Framework
  22   * @subpackage    Document
  23   * @since        1.5
  24   */
  25  class JDocumentRendererHead extends JDocumentRenderer
  26  {
  27      /**
  28       * Renders the document head and returns the results as a string
  29       *
  30       * @access public
  31       * @param string     $name        (unused)
  32       * @param array     $params        Associative array of values
  33       * @return string    The output of the script
  34       */
  35  	function render( $head = null, $params = array(), $content = null )
  36      {
  37          ob_start();
  38  
  39          echo $this->fetchHead($this->_doc);
  40  
  41          $contents = ob_get_contents();
  42          ob_end_clean();
  43  
  44          return $contents;
  45      }
  46  
  47      /**
  48       * Generates the head html and return the results as a string
  49       *
  50       * @access public
  51       * @return string
  52       */
  53  	function fetchHead(&$document)
  54      {
  55          // Trigger the onBeforeCompileHead event.
  56          $app = &JFactory::getApplication();
  57          $app->triggerEvent('onBeforeCompileHead');
  58          
  59          // get line endings
  60          $lnEnd = $document->_getLineEnd();
  61          $tab = $document->_getTab();
  62  
  63          $tagEnd    = ' />';
  64  
  65          $strHtml = '';
  66  
  67          // Generate base tag (need to happen first)
  68          $base = $document->getBase();
  69          if(!empty($base)) {
  70              $strHtml .= $tab.'<base href="'.$document->getBase().'" />'.$lnEnd;
  71          }
  72  
  73          // Generate META tags (needs to happen as early as possible in the head)
  74          foreach ($document->_metaTags as $type => $tag)
  75          {
  76              foreach ($tag as $name => $content)
  77              {
  78                  if ($type == 'http-equiv') {
  79                      $strHtml .= $tab.'<meta http-equiv="'.$name.'" content="'.$content.'"'.$tagEnd.$lnEnd;
  80                  } elseif ($type == 'standard') {
  81                      $strHtml .= $tab.'<meta name="'.$name.'" content="'.str_replace('"',"'",$content).'"'.$tagEnd.$lnEnd;
  82                  }
  83              }
  84          }
  85  
  86          $strHtml .= $tab.'<meta name="description" content="'.$document->getDescription().'" />'.$lnEnd;
  87          $strHtml .= $tab.'<meta name="generator" content="'.$document->getGenerator().'" />'.$lnEnd;
  88  
  89          $strHtml .= $tab.'<title>'.htmlspecialchars($document->getTitle()).'</title>'.$lnEnd;
  90  
  91          // Generate link declarations
  92          foreach ($document->_links as $link) {
  93              $strHtml .= $tab.$link.$tagEnd.$lnEnd;
  94          }
  95  
  96          // Generate stylesheet links
  97          foreach ($document->_styleSheets as $strSrc => $strAttr )
  98          {
  99              $strHtml .= $tab . '<link rel="stylesheet" href="'.$strSrc.'" type="'.$strAttr['mime'].'"';
 100              if (!is_null($strAttr['media'])){
 101                  $strHtml .= ' media="'.$strAttr['media'].'" ';
 102              }
 103              if ($temp = JArrayHelper::toString($strAttr['attribs'])) {
 104                  $strHtml .= ' '.$temp;;
 105              }
 106              $strHtml .= $tagEnd.$lnEnd;
 107          }
 108  
 109          // Generate stylesheet declarations
 110          foreach ($document->_style as $type => $content)
 111          {
 112              $strHtml .= $tab.'<style type="'.$type.'">'.$lnEnd;
 113  
 114              // This is for full XHTML support.
 115              if ($document->_mime == 'text/html' ) {
 116                  $strHtml .= $tab.$tab.'<!--'.$lnEnd;
 117              } else {
 118                  $strHtml .= $tab.$tab.'<![CDATA['.$lnEnd;
 119              }
 120  
 121              $strHtml .= $content . $lnEnd;
 122  
 123              // See above note
 124              if ($document->_mime == 'text/html' ) {
 125                  $strHtml .= $tab.$tab.'-->'.$lnEnd;
 126              } else {
 127                  $strHtml .= $tab.$tab.']]>'.$lnEnd;
 128              }
 129              $strHtml .= $tab.'</style>'.$lnEnd;
 130          }
 131  
 132          // Generate script file links
 133          foreach ($document->_scripts as $strSrc => $strType) {
 134              $strHtml .= $tab.'<script type="'.$strType.'" src="'.$strSrc.'"></script>'.$lnEnd;
 135          }
 136  
 137          // Generate script declarations
 138          foreach ($document->_script as $type => $content)
 139          {
 140              $strHtml .= $tab.'<script type="'.$type.'">'.$lnEnd;
 141  
 142              // This is for full XHTML support.
 143              if ($document->_mime != 'text/html' ) {
 144                  $strHtml .= $tab.$tab.'<![CDATA['.$lnEnd;
 145              }
 146  
 147              $strHtml .= $content.$lnEnd;
 148  
 149              // See above note
 150              if ($document->_mime != 'text/html' ) {
 151                  $strHtml .= $tab.$tab.'// ]]>'.$lnEnd;
 152              }
 153              $strHtml .= $tab.'</script>'.$lnEnd;
 154          }
 155  
 156          foreach($document->_custom as $custom) {
 157              $strHtml .= $tab.$custom.$lnEnd;
 158          }
 159  
 160          return $strHtml;
 161      }
 162  }