/**
* Compress CSS files and write them to media/css folders
*
* @param string $name
* @param string|array $mergeCallback
* @param bool $static
* @return string
*/
protected function _prepareCssCompression($name, $mergeCallback = null, $static = false)
{
$designPackage = Mage::getDesign();
$config = Mage::getStoreConfig('uioptimization/csscompression');
$uiHelper = Mage::helper('uioptimization');
$options = array();
if ($config['type'] == 'yuicompressor') {
//YUI Compressor
$minifier = 'Diglin_Minify_YUICompressor';
$method = 'minifyCss';
// init Minify class with YUI Compressor
Diglin_Minify_YUICompressor::$jarFile = Mage::getBaseDir('lib') . DS . 'Diglin' . DS . 'yuicompressor' . DS . 'yuicompressor.jar';
Diglin_Minify_YUICompressor::$tempDir = Mage::getBaseDir('tmp');
if (strlen($config['java_path']) > 0) {
Diglin_Minify_YUICompressor::$javaExecutable = $config['java_path'];
}
} elseif ($config['type'] == 'googleminify') {
// Google Minify
$minifier = 'Diglin_Minify_CSS';
$method = 'minify';
$options = array('minifierOptions' => array(Diglin_Minify::TYPE_CSS => array('preserveComments' => $config['preserve_comments'])));
} else {
// CSS Tidy
$css = new Diglin_Csstidy_Core();
switch ($config['template']) {
case 'custom':
$css->load_template($config['custom_template']);
break;
case 'low_compression':
case 'default':
case 'high_compression':
case 'highest_compression':
default:
$css->load_template($config['template']);
break;
}
$css->set_cfg('remove_last_;', $config['remove_last_semicolon']);
$css->set_cfg('remove_bslash', $config['remove_bslash']);
$css->set_cfg('compress_colors', $config['compress_colors']);
$css->set_cfg('compress_font-weight', $config['compress_font']);
$css->set_cfg('lowercase_s', $config['lowercase_s']);
$css->set_cfg('optimise_shorthands', $config['optimise_shorthands']);
//0 = none, 1=safe optimize, 2=all optimize
$css->set_cfg('case_properties', $config['case_properties']);
$css->set_cfg('sort_properties', $config['sort_properties']);
$css->set_cfg('sort_selectors', $config['sort_selectors']);
$css->set_cfg('merge_selectors', $config['merge_selectors']);
$css->set_cfg('discard_invalid_properties', $config['discard_invalid_properties']);
$css->set_cfg('css_level', $config['css_level']);
//css2.0, css2.1, css1.0
$css->set_cfg('preserve_css', $config['preserve_css']);
$css->set_cfg('timestamp', $config['timestamp']);
}
$info = $uiHelper->getCompressedInfo($name, 'css', $static);
if (!isset($info['result']) || $info['result'] != false) {
$info['result'] = true;
}
if (!file_exists($info['targetPathFile']) && $info['result'] || !Mage::getStoreConfigFlag('uioptimization/general/cronupdate') && $info['result'] && filemtime($info['orgskin_path']) > filemtime($info['targetPathFile'])) {
$ioFile = new Diglin_Io_File();
if ($config['type'] == 'csstidy') {
// CSS Tidy
$css_code = $ioFile->read($info['orgskin_path']);
$css->parse($css_code);
$cssText = $css->print->plain();
} else {
if ($config['type'] == 'googleminify' || $config['type'] == 'yuicompressor') {
// Google Minify or YUI Compressor
$options += array('quiet' => true, 'files' => array($info['orgskin_path']), 'encodeMethod' => '', 'minifiers' => array(Diglin_Minify::TYPE_CSS => array($minifier, $method)));
$results = Diglin_Minify::serve('Files', $options);
$cssText = $results['content'];
}
}
//clean or fix @import and url(...); by comparing the path with the original CSS file (not the compressed one otherwise the path is wrong)
$cssText = $designPackage->beforeMergeCss($info['orgskin_path'], $cssText);
$info['result'] = $ioFile->write($info['targetPathFile'], $cssText, 0644);
}
return $uiHelper->getResultPath($info, $mergeCallback);
}