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October 16, 2016 21:26
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/* * | |
* @package Joomla.Platform | |
* @subpackage Document | |
* | |
* @copyright Copyright (C) 2005 - 2015 Open Source Matters, Inc. All rights reserved. | |
* @license GNU General Public License version 2 or later; see LICENSE | |
*/ | |
defined('JPATH_PLATFORM') or die; | |
/** | |
* JDocument head renderer | |
* | |
* @since 11.1 | |
*/ | |
class JDocumentRendererHead extends JDocumentRenderer | |
{ | |
/** | |
* Renders the document head and returns the results as a string | |
* | |
* @param string $head (unused) | |
* @param array $params Associative array of values | |
* @param string $content The script | |
* | |
* @return string The output of the script | |
* | |
* @since 11.1 | |
* | |
* @note Unused arguments are retained to preserve backward compatibility. | |
*/ | |
public function render($head, $params = array(), $content = null) | |
{ | |
return $this->fetchHead($this->_doc); | |
} | |
/** | |
* Generates the head HTML and return the results as a string | |
* | |
* @param JDocument $document The document for which the head will be created | |
* | |
* @return string The head hTML | |
* | |
* @since 11.1 | |
*/ | |
public function fetchHead($document) | |
{ | |
// Convert the tagids to titles | |
if (isset($document->_metaTags['standard']['tags'])) | |
{ | |
$tagsHelper = new JHelperTags; | |
$document->_metaTags['standard']['tags'] = implode(', ', $tagsHelper->getTagNames($document->_metaTags['standard']['tags'])); | |
} | |
// Trigger the onBeforeCompileHead event | |
$app = JFactory::getApplication(); | |
$app->triggerEvent('onBeforeCompileHead'); | |
// Get line endings | |
$lnEnd = $document->_getLineEnd(); | |
$tab = $document->_getTab(); | |
$tagEnd = ' />'; | |
$buffer = ''; | |
// Generate charset when using HTML5 (should happen first) | |
if ($document->isHtml5()) | |
{ | |
$buffer .= $tab . '<meta charset="' . $document->getCharset() . '" />' . $lnEnd; | |
} | |
// Generate base tag (need to happen early) | |
$base = $document->getBase(); | |
if (!empty($base)) | |
{ | |
$buffer .= $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' && !($document->isHtml5() && $name == 'content-type')) | |
{ | |
$buffer .= $tab . '<meta http-equiv="' . $name . '" content="' . htmlspecialchars($content) . '" />' . $lnEnd; | |
} | |
elseif ($type == 'standard' && !empty($content)) | |
{ | |
$buffer .= $tab . '<meta name="' . $name . '" content="' . htmlspecialchars($content) . '" />' . $lnEnd; | |
} | |
} | |
} | |
// Don't add empty descriptions | |
$documentDescription = $document->getDescription(); | |
if ($documentDescription) | |
{ | |
$buffer .= $tab . '<meta name="description" content="' . htmlspecialchars($documentDescription) . '" />' . $lnEnd; | |
} | |
// Don't add empty generators | |
$generator = $document->getGenerator(); | |
if ($generator) | |
{ | |
$buffer .= $tab . '<meta name="generator" content="' . htmlspecialchars($generator) . '" />' . $lnEnd; | |
} | |
$buffer .= $tab . '<title>' . htmlspecialchars($document->getTitle(), ENT_COMPAT, 'UTF-8') . '</title>' . $lnEnd; | |
// Generate link declarations | |
foreach ($document->_links as $link => $linkAtrr) | |
{ | |
$buffer .= $tab . '<link href="' . $link . '" ' . $linkAtrr['relType'] . '="' . $linkAtrr['relation'] . '"'; | |
if ($temp = JArrayHelper::toString($linkAtrr['attribs'])) | |
{ | |
$buffer .= ' ' . $temp; | |
} | |
$buffer .= ' />' . $lnEnd; | |
} | |
// Generate stylesheet links | |
foreach ($document->_styleSheets as $strSrc => $strAttr) | |
{ | |
$buffer .= $tab . '<link rel="stylesheet" href="' . $strSrc . '"'; | |
if (!is_null($strAttr['mime']) && (!$document->isHtml5() || $strAttr['mime'] != 'text/css')) | |
{ | |
$buffer .= ' type="' . $strAttr['mime'] . '"'; | |
} | |
if (!is_null($strAttr['media'])) | |
{ | |
$buffer .= ' media="' . $strAttr['media'] . '"'; | |
} | |
if ($temp = JArrayHelper::toString($strAttr['attribs'])) | |
{ | |
$buffer .= ' ' . $temp; | |
} | |
$buffer .= $tagEnd . $lnEnd; | |
} | |
// Generate stylesheet declarations | |
foreach ($document->_style as $type => $content) | |
{ | |
$buffer .= $tab . '<style type="' . $type . '">' . $lnEnd; | |
// This is for full XHTML support. | |
if ($document->_mime != 'text/html') | |
{ | |
$buffer .= $tab . $tab . '/*<![CDATA[*/' . $lnEnd; | |
} | |
$buffer .= $content . $lnEnd; | |
// See above note | |
if ($document->_mime != 'text/html') | |
{ | |
$buffer .= $tab . $tab . '/*]]>*/' . $lnEnd; | |
} | |
$buffer .= $tab . '</style>' . $lnEnd; | |
} | |
// Generate script file links | |
foreach ($document->_scripts as $strSrc => $strAttr) | |
{ | |
$buffer .= $tab . '<script src="' . $strSrc . '"'; | |
$defaultMimes = array( | |
'text/javascript', 'application/javascript', 'text/x-javascript', 'application/x-javascript' | |
); | |
if (!is_null($strAttr['mime']) && (!$document->isHtml5() || !in_array($strAttr['mime'], $defaultMimes))) | |
{ | |
$buffer .= ' type="' . $strAttr['mime'] . '"'; | |
} | |
if ($strAttr['defer']) | |
{ | |
$buffer .= ' defer="defer"'; | |
} | |
if ($strAttr['async']) | |
{ | |
$buffer .= ' async="async"'; | |
} | |
$buffer .= '></script>' . $lnEnd; | |
} | |
// Generate script declarations | |
foreach ($document->_script as $type => $content) | |
{ | |
$buffer .= $tab . '<script type="' . $type . '">' . $lnEnd; | |
// This is for full XHTML support. | |
if ($document->_mime != 'text/html') | |
{ | |
$buffer .= $tab . $tab . '//<![CDATA[' . $lnEnd; | |
} | |
$buffer .= $content . $lnEnd; | |
// See above note | |
if ($document->_mime != 'text/html') | |
{ | |
$buffer .= $tab . $tab . '//]]>' . $lnEnd; | |
} | |
$buffer .= $tab . '</script>' . $lnEnd; | |
} | |
// Generate script language declarations. | |
if (count(JText::script())) | |
{ | |
$buffer .= $tab . '<script type="text/javascript">' . $lnEnd; | |
if ($document->_mime != 'text/html') | |
{ | |
$buffer .= $tab . $tab . '//<![CDATA[' . $lnEnd; | |
} | |
$buffer .= $tab . $tab . '(function() {' . $lnEnd; | |
$buffer .= $tab . $tab . $tab . 'Joomla.JText.load(' . json_encode(JText::script()) . ');' . $lnEnd; | |
$buffer .= $tab . $tab . '})();' . $lnEnd; | |
if ($document->_mime != 'text/html') | |
{ | |
$buffer .= $tab . $tab . '//]]>' . $lnEnd; | |
} | |
$buffer .= $tab . '</script>' . $lnEnd; | |
} | |
// Output the custom tags - array_unique makes sure that we don't output the same tags twice | |
foreach (array_unique($document->_custom) as $custom) | |
{ | |
$buffer .= $tab . $custom . $lnEnd; | |
} | |
return $buffer; | |
} | |
} |
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