/**
* Save or update custom CSS
*
* Called when "Save Settings" button is clicked
*
* @param string $css_file
*/
function save_custom_css($css_file)
{
if (!is_dir(SLPLUS_UPLOADDIR . "css/")) {
wp_mkdir_p(SLPLUS_UPLOADDIR . "css/");
}
$this->slplus->createobject_Activation();
$this->slplus->Activation->copy_newer_files(SLPLUS_PLUGINDIR . "css/{$css_file}", SLPLUS_UPLOADDIR . "css/{$css_file}");
}