/**
* Minify, combine and load site stylesheet
*/
public static function load()
{
$backend_site_css_path = MINIFY . DS . 'backend_site.minify.css';
$frontend_site_css_path = MINIFY . DS . 'frontend_site.minify.css';
// Load stylesheets
if (count(Stylesheet::$stylesheets) > 0) {
$backend_buffer = '';
$backend_regenerate = false;
$frontend_buffer = '';
$frontend_regenerate = false;
// Sort stylesheets by priority
$stylesheets = Arr::subvalSort(Stylesheet::$stylesheets, 'priority');
if (BACKEND) {
// Build backend site stylesheets
foreach ($stylesheets as $stylesheet) {
if (file_exists(ROOT . DS . $stylesheet['file']) and ($stylesheet['load'] == 'backend' or $stylesheet['load'] == 'both')) {
if (!file_exists($backend_site_css_path) or filemtime(ROOT . DS . $stylesheet['file']) > filemtime($backend_site_css_path)) {
$backend_regenerate = true;
break;
}
}
}
// Regenerate site stylesheet
if ($backend_regenerate) {
foreach ($stylesheets as $stylesheet) {
if (file_exists(ROOT . DS . $stylesheet['file']) and ($stylesheet['load'] == 'backend' or $stylesheet['load'] == 'both')) {
$backend_buffer .= file_get_contents(ROOT . DS . $stylesheet['file']);
}
}
$backend_buffer = Stylesheet::parseVariables($backend_buffer);
file_put_contents($backend_site_css_path, MinifyCSS::process($backend_buffer));
$backend_regenerate = false;
}
} else {
// Build frontend site stylesheets
foreach ($stylesheets as $stylesheet) {
if (file_exists(ROOT . DS . $stylesheet['file']) and ($stylesheet['load'] == 'frontend' or $stylesheet['load'] == 'both')) {
if (!file_exists($frontend_site_css_path) or filemtime(ROOT . DS . $stylesheet['file']) > filemtime($frontend_site_css_path)) {
$frontend_regenerate = true;
break;
}
}
}
// Regenerate site stylesheet
if ($frontend_regenerate) {
foreach ($stylesheets as $stylesheet) {
if (file_exists(ROOT . DS . $stylesheet['file']) and ($stylesheet['load'] == 'frontend' or $stylesheet['load'] == 'both')) {
$frontend_buffer .= file_get_contents(ROOT . DS . $stylesheet['file']);
}
}
$frontend_buffer = Stylesheet::parseVariables($frontend_buffer);
file_put_contents($frontend_site_css_path, MinifyCSS::process($frontend_buffer));
$frontend_regenerate = false;
}
}
// Render
if (BACKEND) {
echo '<link rel="stylesheet" href="' . Option::get('siteurl') . '/tmp/minify/backend_site.minify.css?' . Option::get('styles_version') . '" type="text/css" />';
} else {
echo '<link rel="stylesheet" href="' . Option::get('siteurl') . '/tmp/minify/frontend_site.minify.css?' . Option::get('styles_version') . '" type="text/css" />' . "\n";
}
}
}
/**
* Minify a CSS string
*
* @param string $css
*
* @param array $options (currently ignored)
*
* @return string
*/
public static function process($css, $options = array())
{
$obj = new MinifyCSS($options);
return $obj->_process($css);
}
public function generateCSSFile()
{
/*if (!is_file(dirname(__FILE__).'/cache/stylesheet.php')) {*/
$css = $this->generateCSS();
include_once dirname(__FILE__) . '/classes/minify.php';
$minifyCCS = new MinifyCSS($css);
$minifyCCS->minify(dirname(__FILE__) . '/cache/stylesheet.php', $stripComments = true, $stripWhitespace = true, $shortenHex = true, $combineImports = true, $importFiles = true);
/*}*/
return DIR_WS_HTTP_CATALOG . DIR_WS_MODULES . 'checkout/cache/stylesheet.php';
}
/**
* Minify a CSS-file
*
* @param string $file The file to be minified.
* @return string
*/
private function minifyCSS($file)
{
// create unique filename
$fileName = md5($file) . '.css';
$finalURL = FRONTEND_CACHE_URL . '/minified_css/' . $fileName;
$finalPath = FRONTEND_CACHE_PATH . '/minified_css/' . $fileName;
// check that file does not yet exist or has been updated already
if (!SpoonFile::exists($finalPath) || filemtime(PATH_WWW . $file) > filemtime($finalPath)) {
// create directory if it does not exist
if (!SpoonDirectory::exists(dirname($finalPath))) {
SpoonDirectory::create(dirname($finalPath));
}
// minify the file
require_once PATH_LIBRARY . '/external/minify.php';
$css = new MinifyCSS(PATH_WWW . $file);
$css->minify($finalPath);
}
return $finalURL;
}
