/**
* Special compilation for template.css file when development mode is on
* @param $path
* @return bool
*/
public static function divide($path)
{
//check system
self::requirement();
$parser = new Less_Parser();
$app = JFactory::getApplication();
$doc = JFactory::getDocument();
$tpl = T3_TEMPLATE;
$theme = $app->getTemplate(true)->params->get('theme');
$is_rtl = $doc->direction == 'rtl' && strpos($path, 'rtl/') === false;
$subdir = ($is_rtl ? 'rtl/' : '') . ($theme ? $theme . '/' : '');
$topath = T3_DEV_FOLDER . '/' . $subdir;
$tofile = null;
$root = JUri::root(true);
//pattern
$rimport = '@^\\s*\\@import\\s+"([^"]*)"\\s*;@im';
$rvarscheck = '@(base|base-bs3|bootstrap|' . preg_quote($tpl) . ')/less/(vars|variables|mixins)\\.less@';
$rexcludepath = '@(base|base-bs3|bootstrap|' . preg_quote($tpl) . ')/less/@';
$rimportvars = '@^\\s*\\@import\\s+".*(variables-custom|variables|vars|mixins)\\.less"\\s*;@im';
$rsplitbegin = '@^\\s*\\#';
$rsplitend = '[^\\s]*?\\s*{\\s*[\\r\\n]*\\s*content:\\s*"([^"]*)";\\s*[\\r\\n]*\\s*}@im';
$rswitchrtl = '@/less/(themes/[^/]*/)?@';
$kfilepath = 'less-file-path';
$kvarsep = 'less-content-separator';
$krtlsep = 'rtl-less-content';
if ($topath) {
if (!is_dir(JPATH_ROOT . '/' . $topath)) {
JFolder::create(JPATH_ROOT . '/' . $topath);
}
}
// check path
$realpath = realpath(JPATH_ROOT . '/' . $path);
if (!is_file($realpath)) {
return;
}
// get file content
$content = JFile::read($realpath);
//remove vars.less
if (preg_match($rexcludepath, $path)) {
$content = preg_replace($rimportvars, '', $content);
}
// check and add theme less if not is theme less
if ($theme && strpos($path, 'themes/') === false) {
$themepath = 'themes/' . $theme . '/' . basename($path);
if (is_file(T3_TEMPLATE_PATH . '/less/' . $themepath)) {
$content = $content . "\n@import \"{$themepath}\"; \n\n";
}
}
// split into array, separated by the import
$split_contents = preg_split($rimport, $content, -1, PREG_SPLIT_DELIM_CAPTURE);
//check if we need to rebuild
$rebuild = false;
$vars_lm = $app->getUserState('vars_last_modified', 0);
$file_lm = @filemtime(JPATH_ROOT . '/' . $path);
//check for this file and rtl
$cssfile = $topath . str_replace('/', '.', $path) . '.css';
$css_lm = is_file(JPATH_ROOT . '/' . $cssfile) ? @filemtime(JPATH_ROOT . '/' . $cssfile) : -1;
//rebuild?
if ($css_lm < $vars_lm || $css_lm < $file_lm) {
$rebuild = true;
} else {
$doc->addStylesheet($root . '/' . $cssfile);
}
//check for rebuild if this rtl overwrite file has just modified
if (!$rebuild && $is_rtl) {
$rtl_url = preg_replace('@/less/(themes/)?@', '/less/rtl/', $path);
$rtl_lm = is_file(JPATH_ROOT . '/' . $rtl_url) ? @filemtime(JPATH_ROOT . '/' . $rtl_url) : 0;
$rebuild = $css_lm < $rtl_lm;
}
if (!$rebuild) {
$import = false;
foreach ($split_contents as $chunk) {
if ($import) {
$import = false;
$url = T3Path::cleanPath(dirname($path) . '/' . $chunk);
if (is_file(JPATH_ROOT . '/' . $url)) {
//$css_lm should be the same as templates.css
$file_lm = @filemtime(JPATH_ROOT . '/' . $url);
$theme_lm = -1;
$rtl_lm = -1;
$theme_rtl_lm = -1;
if ($theme && strpos($url, 'themes/') === false) {
$themepath = 'themes/' . $theme . '/' . basename($path);
if (is_file(T3_TEMPLATE_PATH . '/less/' . $themepath)) {
$theme_lm = @filemtime(T3_TEMPLATE_PATH . '/less/' . $themepath);
}
if ($is_rtl) {
$rtlthemepath = preg_replace($rswitchrtl, '/less/rtl/' . $theme . '/', $url);
if (is_file(JPATH_ROOT . '/' . $rtlthemepath)) {
$theme_rtl_lm = @filemtime(JPATH_ROOT . '/' . $rtlthemepath);
}
}
}
if ($is_rtl) {
$rtl_url = preg_replace('@/less/(themes/)?@', '/less/rtl/', $url);
if (is_file(JPATH_ROOT . '/' . $rtl_url)) {
$rtl_lm = @filemtime(JPATH_ROOT . '/' . $rtl_url);
}
}
if (!is_file(JPATH_ROOT . '/' . $cssfile) || $css_lm < $vars_lm || $css_lm < $file_lm || $css_lm < $theme_lm || $css_lm < $rtl_lm || $css_lm < $theme_rtl_lm) {
$rebuild = true;
// rebuild for sure
break;
//no need further check
} else {
$doc->addStylesheet($root . '/' . $topath . str_replace('/', '.', $url) . '.css');
}
}
} else {
$import = true;
}
}
}
// so, no need to rebuild?
if (!$rebuild) {
// add RTL css if needed
if ($is_rtl) {
$cssfile = $topath . str_replace('/', '.', str_replace('.less', '-rtl.less', $path)) . '.css';
if (is_file(JPATH_ROOT . '/' . $cssfile)) {
$doc->addStylesheet($root . '/' . $cssfile);
}
}
return false;
}
// variables & mixin
$vars = self::getVars();
$output = '';
$importdirs = array();
// iterate to each chunk and add separator mark
$import = false;
foreach ($split_contents as $chunk) {
if ($import) {
$import = false;
$url = T3Path::cleanPath(dirname($path) . '/' . $chunk);
// ignore vars.less and variables.less if they are in template folder
// cause there may have other css less file with the same name (eg. font awesome)
if (preg_match($rvarscheck, $url)) {
continue;
}
// remember this path when lookup for import
$importdirs[dirname(JPATH_ROOT . '/' . $url)] = $root . '/' . dirname($url) . '/';
$output .= "#{$kfilepath}{content: \"{$url}\";}\n@import \"{$chunk}\";\n\n";
// check and add theme less
if ($theme && strpos($url, 'themes/') === false) {
$theme_rel = 'themes/' . $theme . '/' . basename($url);
$theme_path = T3_TEMPLATE_PATH . '/less/' . $theme_rel;
if (is_file($theme_path)) {
$importdirs[dirname($theme_path)] = T3_TEMPLATE_URL . dirname($theme_rel) . '/';
$output .= "#{$kfilepath}{content: \"" . ('templates/' . T3_TEMPLATE . '/less/' . $theme_rel) . "\";}\n@import \"{$theme_rel}\";\n\n";
}
}
} else {
$import = true;
$chunk = trim($chunk);
if ($chunk) {
$output .= "#{$kfilepath}{content: \"{$path}\";}\n{$chunk}\n\n";
}
}
}
// compile RTL overwrite when in RTL mode
if ($is_rtl) {
$rtlcontent = '';
// import rtl override
$import = false;
foreach ($split_contents as $chunk) {
if ($import) {
$import = false;
$url = T3Path::cleanPath(dirname($path) . '/' . $chunk);
// ignore vars.less and variables.less if they are in template folder
// cause there may have other css less file with the same name (eg. font awesome)
if (preg_match($rvarscheck, $url)) {
continue;
}
// process import file
$rtl_url = preg_replace('@/less/(themes/)?@', '/less/rtl/', $url);
// is there overwrite file?
if (!is_file(JPATH_ROOT . '/' . $rtl_url)) {
continue;
}
// process import file
$importcontent = JFile::read(JPATH_ROOT . '/' . $rtl_url);
if (preg_match($rexcludepath, $rtl_url)) {
$importcontent = preg_replace($rimportvars, '', $importcontent);
}
// remember this path when lookup for import
if (preg_match($rimport, $importcontent)) {
$importdirs[dirname(JPATH_ROOT . '/' . $rtl_url)] = $root . '/' . dirname($rtl_url) . '/';
}
$rtlcontent .= "\n{$importcontent}\n\n";
// rtl theme overwrite
if ($theme && strpos($url, 'themes/') === false) {
$rtlthemepath = preg_replace($rswitchrtl, '/less/rtl/' . $theme . '/', $url);
if (is_file(JPATH_ROOT . '/' . $rtlthemepath)) {
// process import file
$importcontent = JFile::read(JPATH_ROOT . '/' . $rtlthemepath);
$rtlcontent .= "\n{$importcontent}\n\n";
$importdirs[dirname(JPATH_ROOT . '/' . $rtlthemepath)] = $root . '/' . dirname($rtlthemepath) . '/';
}
}
} else {
$import = true;
}
}
// override in template for this file
$rtlpath = preg_replace($rswitchrtl, '/less/rtl/', $path);
if (is_file(JPATH_ROOT . '/' . $rtlpath)) {
// process import file
$importcontent = JFile::read(JPATH_ROOT . '/' . $rtlpath);
$rtlcontent .= "\n{$importcontent}\n\n";
$importdirs[dirname(JPATH_ROOT . '/' . $rtlpath)] = $root . '/' . dirname($rtlpath) . '/';
}
// rtl theme
if ($theme) {
$rtlthemepath = preg_replace($rswitchrtl, '/less/rtl/' . $theme . '/', $path);
if (is_file(JPATH_ROOT . '/' . $rtlthemepath)) {
// process import file
$importcontent = JFile::read(JPATH_ROOT . '/' . $rtlthemepath);
$rtlcontent .= "\n{$importcontent}\n\n";
$importdirs[dirname(JPATH_ROOT . '/' . $rtlthemepath)] = $root . '/' . dirname($rtlthemepath) . '/';
}
}
if ($rtlcontent) {
//rtl content will be treat as a new file
$rtlfile = str_replace('.less', '-rtl.less', $path);
$output = $output . "\n#{$kfilepath}{content: \"{$rtlfile}\";}\n\n#{$krtlsep}{content: \"separator\";}\n\n{$rtlcontent}\n\n";
}
}
// common place
$importdirs[T3_TEMPLATE_PATH . '/less'] = T3_TEMPLATE_URL . '/less/';
// myself
$importdirs[dirname(JPATH_ROOT . '/' . $path)] = $root . '/' . dirname($path) . '/';
// compile less to css using lessphp
$parser->SetImportDirs($importdirs);
$parser->SetFileInfo(JPATH_ROOT . '/' . $path, $root . '/' . dirname($path) . '/');
$source = $vars . "\n#{$kvarsep}{content: \"separator\";}\n" . $output;
$parser->parse($source);
$output = $parser->getCss();
//use cssjanus to transform the content
if ($is_rtl) {
if ($rtlcontent) {
$output = preg_split($rsplitbegin . $krtlsep . $rsplitend, $output, -1, PREG_SPLIT_DELIM_CAPTURE);
$rtlcontent = isset($output[2]) ? $output[2] : false;
$output = $output[0];
}
T3::import('jacssjanus/ja.cssjanus');
$output = JACSSJanus::transform($output, true);
if ($rtlcontent) {
$output = $output . "\n" . $rtlcontent;
}
}
//update path and store to files
$split_contents = preg_split($rsplitbegin . $kfilepath . $rsplitend, $output, -1, PREG_SPLIT_DELIM_CAPTURE);
$file_contents = array();
$file = $path;
//default
$relpath = JURI::base(true) . '/' . dirname($file);
$isfile = false;
foreach ($split_contents as $chunk) {
if ($isfile) {
$isfile = false;
$file = $chunk;
$relpath = $topath ? T3Path::relativePath($topath, dirname($file)) : JURI::base(true) . '/' . dirname($file);
} else {
$file_contents[$file] = (isset($file_contents[$file]) ? $file_contents[$file] : '') . "\n" . ($file ? T3Path::updateUrl($chunk, $relpath) : $chunk) . "\n\n";
$isfile = true;
}
}
if (!empty($file_contents)) {
// remove the duplicate clearfix at the beginning
$split_contents = preg_split($rsplitbegin . $kvarsep . $rsplitend, reset($file_contents));
// ignore first one, it's clearfix
if (is_array($split_contents)) {
array_shift($split_contents);
}
$file_contents[key($file_contents)] = implode("\n", $split_contents);
//output the file to content and add to document
foreach ($file_contents as $file => $content) {
$cssfile = $topath . str_replace('/', '.', $file) . '.css';
JFile::write(JPATH_ROOT . '/' . $cssfile, $content);
$doc->addStylesheet($root . '/' . $cssfile);
}
}
}