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<?php
/*
# author Roland Soos
# copyright Copyright (C) Nextendweb.com. All Rights Reserved.
# @license - http://www.gnu.org/licenses/gpl-3.0.txt GNU/GPL
*/
defined('_JEXEC') or die('Restricted access'); ?><?php
class NextendCss {
var $_css;
var $_cssGroup;
var $_cssFiles;
var $_cssFilesGroup;
var $_cacheenabled;
var $_cache;
var $_cacheGroup;
var $_lesscache;
var $_lesscacheGroup;
var $_echo;
function NextendCss() {
$this->_css = '';
$this->_cssGroup = array();
$this->_cssFiles = array();
$this->_cssFilesGroup = array();
$this->_cacheGroup = array();
$this->_cacheenabled = 1;
$this->_lesscache = false;
$this->_lesscacheGroup = array();
$this->_echo = false;
if ($this->_cacheenabled) {
nextendimport('nextend.cache.css');
$this->_cache = new NextendCacheCss();
}
}
static function getInstance() {
static $instance;
if (!is_object($instance)) {
if (nextendIsJoomla()) {
nextendimport('nextend.css.joomla');
$instance = new NextendCssJoomla();
} elseif (nextendIsWordPress()) {
nextendimport('nextend.css.wordpress');
$instance = new NextendCssWordPress();
} elseif (nextendIsMagento()) {
nextendimport('nextend.css.magento');
$instance = new NextendCssMagento();
}
}
return $instance;
}
function createGroup($name) {
$this->_cssFilesGroup[$name] = array();
if ($this->_cacheenabled) {
nextendimport('nextend.cache.css');
$this->_cacheGroup[$name] = new NextendCacheCss();
}
}
function enableLess($group = null) {
nextendimport('nextend.cache.less');
if (!$group)
$this->_lesscache = new NextendCacheLess();
else
$this->_lesscacheGroup[$group] = new NextendCacheLess();
}
function addLessImportDir($dir, $group = null) {
if (!$group)
$this->_lesscache->_less->addImportDir($dir);
else
$this->_lesscacheGroup[$group]->_less->addImportDir($dir);
}
function addCss($css, $group = null) {
if($group){
$this->_cssGroup[$group] = $css . PHP_EOL;
}else{
$this->_css .= $css . PHP_EOL;
}
}
function addCssFile($file, $group = null, $first = false) {
if (is_string($file)) {
if (!$group){
if($first){
$this->_cssFiles = array($file => $file) + $this->_cssFiles;
}else{
$this->_cssFiles[$file] = $file;
}
}else{
if($first){
$this->_cssFilesGroup[$group] = array($file => $file) + $this->_cssFilesGroup[$group];
}else{
$this->_cssFilesGroup[$group][$file] = $file;
}
}
} else if (is_array($file)) {
if (!$group){
$this->_cssFiles[$file[0]] = $file;
}else{
$this->_cssFilesGroup[$group][$file[0]] = $file;
}
}
}
function addCssLibraryFile($file, $group = null) {
$this->addCssFile(NEXTENDLIBRARYASSETS . 'css' . DIRECTORY_SEPARATOR . $file, $group);
}
function generateCSS($group = null, $serve = true) {
if (!$group && class_exists('NextendFontsGoogle', false)) {
$fonts = NextendFontsGoogle::getInstance();
$fonts->generateFonts();
}
$cssfiles = !$group ? $this->_cssFiles : (isset($this->_cssFilesGroup[$group]) ? $this->_cssFilesGroup[$group] : null);
if(!$cssfiles) return '';
$cache = !$group ? $this->_cache : $this->_cacheGroup[$group];
$lesscache = !$group ? $this->_lesscache : $this->_lesscacheGroup[$group];
if (count($cssfiles)) {
foreach ($cssfiles AS $file) {
if (is_array($file)) { // LESS
$lesscache->addContext($file[1], $file[2]);
} else if (substr($file, 0, 4) == 'http') {
$this->serveCSSFile($file);
} else if(NextendFilesystem::safefileexists($file)){
if ($this->_cacheenabled) {
$cache->addFile($file);
} else {
$url = NextendFilesystem::pathToAbsoluteURL($file);
$this->serveCSSFile($url);
}
}else{
if ($this->_cacheenabled) {
$cache->addText($file);
} else {
$this->addCss($file, $group);
}
}
}
}
$filename = null;
if ($this->_cacheenabled) {
if ($lesscache) {
$filename = $lesscache->getCache();
if($filename) $cache->addFile(NextendFilesystem::absoluteURLToPath($filename));
}
$filename = $cache->getCache();
if($serve && $filename) $this->serveCSSFile($filename);
} else {
if ($lesscache) {
$filename = $lesscache->getCache();
if($serve && $filename) $this->serveCSSFile($filename);
}
}
$this->serveCSS(true, $group);
return $filename;
}
/*
* Abstract, must redeclare
* This one only for testing purpose!
*/
function serveCSS($clear = true, $group = null) {
if (!$group && $this->_css != '' || isset($this->_cssGroup[$group]) && $this->_cssGroup[$group] != '') {
echo "<style type='text/css'>";
echo $group ? $this->_cssGroup[$group] : $this->_css;
echo "</style>";
if (!$group && $clear) $this->_css = '';
}
}
/*
* Abstract, must redeclare
* This one only for testing purpose!
*/
function serveCSSFile($url) {
echo '<link rel="stylesheet" href="' . $url . '" type="text/css" />';
}
function generateAjaxCSS($loadedCSS) {
$css = '';
if (count($this->_cssFiles)) {
$lesscache = $this->_lesscache;
foreach ($this->_cssFiles AS $k => $file) {
if (!in_array($k, $loadedCSS)) {
if(is_array($file)){
$lesscache->addContext($file[1], $file[2]);
}else{
$css .= preg_replace('#url\([\'"]([^"\'\)]+)[\'"]\)#', 'url(' . NextendFilesystem::pathToAbsoluteURL(dirname($k)) . '/$1)', NextendFilesystem::readFile($k));
}
}
}
if ($lesscache) {
$filename = $lesscache->getCache();
if($filename){
$lessfile = NextendFilesystem::absoluteURLToPath($lesscache->getCache());
$css .= preg_replace('#url\([\'"]([^"\'\)]+)[\'"]\)#', 'url(' . NextendFilesystem::pathToAbsoluteURL(dirname($lessfile)) . '/$1)', NextendFilesystem::readFile($lessfile));
}
}
}
$css .= $this->_css;
return $css;
}
function generateArrayCSS() {
$css = array();
$css = array_merge($css, $this->_cssFiles);
return $css;
}
}