/**
* Embeds the css stylesheets to the html email and normalizes the url() css tag
* In addition .less files are compiled, modified and embedded to html email
*
* @static
* @param $string - the content to modify
* @param null | Document $document
* @return string
* @throws Exception - if something else than a document is passed
*/
public static function embedAndModifyCss($string, $document = null)
{
if ($document && $document instanceof Document == false) {
throw new Exception('$document has to be an instance of Document');
}
//matches all <link> Tags
preg_match_all("@<link.*?href\\s*=\\s*[\"']([^http].*?)[\"'].*?(/?>|</\\s*link>)@is", $string, $matches);
if (!empty($matches[0])) {
foreach ($matches[0] as $key => $value) {
$fullMatch = $matches[0][$key];
$path = $matches[1][$key];
$fileInfo = self::getNormalizedFileInfo($path, $document);
if (in_array($fileInfo['fileExtension'], array('css', 'less'))) {
if (is_readable($fileInfo['filePathNormalized'])) {
if ($fileInfo['fileExtension'] == 'css') {
$fileContent = file_get_contents($fileInfo['filePathNormalized']);
} else {
$fileContent = Pimcore_Tool_Less::compile($fileInfo['filePathNormalized']);
$fileContent = str_replace('/**** compiled with lessphp ****/', '', $fileContent);
}
if ($fileContent) {
$fileContent = self::normalizeCssContent($fileContent, $fileInfo);
$string = str_replace($fullMatch, '<style type="text/css">' . $fileContent . '</style>', $string);
}
}
}
}
}
return $string;
}
protected function frontend()
{
$body = $this->getResponse()->getBody();
$body = Pimcore_Tool_Less::processHtml($body);
$this->getResponse()->setBody($body);
}
