--- /dev/null
+<?php
+/***************************************************************
+ * Copyright notice
+ *
+ * (c) 2010 Steffen Gebert (steffen@steffen-gebert.de)
+ * All rights reserved
+ *
+ * This script is part of the TYPO3 project. The TYPO3 project is
+ * free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * The GNU General Public License can be found at
+ * http://www.gnu.org/copyleft/gpl.html.
+ * A copy is found in the textfile GPL.txt and important notices to the license
+ * from the author is found in LICENSE.txt distributed with these scripts.
+ *
+ *
+ * This script is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * This copyright notice MUST APPEAR in all copies of the script!
+ ***************************************************************/
+
+/**
+ * Compressor
+ * This class can currently merge CSS files of the TYPO3 Backend.
+ *
+ * @author Steffen Gebert <steffen@steffen-gebert.de>
+ * @package TYPO3
+ * @subpackage t3lib
+ * $Id$
+ */
+class t3lib_compressor {
+
+ protected $skinStylesheetDirectories = array();
+ protected $targetDirectory = 'typo3temp/compressor/';
+
+ /**
+ * Constructor
+ */
+ public function __construct() {
+
+ // we check for existance of our targetDirectory
+ if (!is_dir(PATH_site . $this->targetDirectory)) {
+ t3lib_div::mkdir(PATH_site . $this->targetDirectory);
+ }
+ }
+
+ /**
+ * Concatenates the cssFiles
+ *
+ * Options:
+ * baseDirectories If set, only include files below one of the base directories
+ *
+ * @param array $cssFiles CSS files added to the PageRenderer
+ * @param array $options Additional options
+ * @return array CSS files
+ */
+ public function concatenateCssFiles(array $cssFiles, $options = array()) {
+ $filesToInclude = array();
+ foreach ($cssFiles as $filename => $fileOptions) {
+ // we remove BACK_PATH from $filename, so make it relative to TYPO3_mainDir
+ $filenameFromMainDir = substr($filename, strlen($GLOBALS['BACK_PATH']));
+ // if $options['baseDirectories'] set, we only include files below these directroies
+ if (!isset($options['baseDirectories']) || $this->checkBaseDirectory($filenameFromMainDir, $options['baseDirectories'])) {
+ $filesToInclude[] = $filenameFromMainDir;
+ // remove the file from the incoming file array
+ unset($cssFiles[$filename]);
+ }
+ }
+
+ if (count($filesToInclude)) {
+ $targetFile = $this->createMergedCssFile($filesToInclude);
+ $concatenatedOptions = array(
+ 'rel' => 'stylesheet',
+ 'media' => 'all',
+ 'title' => 'Merged TYPO3 Backend Stylesheets',
+ 'compress' => TRUE,
+ );
+ $targetFileRelative = $GLOBALS['BACK_PATH'] . '../' . $targetFile;
+ // place the merged stylesheet on top of the stylesheets
+ $cssFiles = array_merge(array($targetFileRelative => $concatenatedOptions), $cssFiles);
+ }
+ return $cssFiles;
+ }
+
+ /**
+ * Creates a merged CSS file
+ *
+ * @param array $filesToInclude Files which should be merged, paths relative to TYPO3_mainDir
+ * @return mixed Filename of the merged file
+ */
+ protected function createMergedCssFile(array $filesToInclude) {
+ // we add up the filenames, filemtimes and filsizes to later build a checksum over
+ // it and include it in the temporary file name
+ $unique = '';
+
+ foreach ($filesToInclude as $filename) {
+ $unique .= $filename . filemtime($GLOBALS['BACK_PATH'] . $filename) . filesize($GLOBALS['BACK_PATH'] . $filename);
+ }
+ $targetFile = $this->targetDirectory . TYPO3_MODE . '-'. md5($unique) . '.css';
+
+ // if the file doesn't already exist, we create it
+ if (!file_exists($targetFile)) {
+ $concatenated = '';
+ // concatenate all the files together
+ foreach ($filesToInclude as $filename) {
+ $contents = file_get_contents($GLOBALS['BACK_PATH'] . $filename);
+ $concatenated .= $this->cssFixRelativeUrlPaths($contents, dirname($filename) . '/', $this->targetDirectory);
+ }
+
+ if (strlen($concatenated)) {
+ t3lib_div::writeFile(PATH_site . $targetFile, $concatenated);
+ }
+ }
+ return $targetFile;
+ }
+
+ /**
+ * Decides whether a CSS file comes from one of the baseDirectories
+ *
+ * @param string $filename Filename
+ * @return boolean File belongs to a skin or not
+ */
+ protected function checkBaseDirectory($filename, array $baseDirectories) {
+ foreach ($baseDirectories as $baseDirectory) {
+ // check, if $filename starts with $skinStylesheetDirectory (it's position 0, not FALSE!)
+ if (strpos($filename, $baseDirectory) === 0) {
+ return TRUE;
+ }
+ }
+ return FALSE;
+ }
+
+ /**
+ * Fixes the relative paths inside of url() references in CSS files
+ *
+ * @param string $contents Data to process
+ * @param string $oldDir Directory of the originial file, relative to TYPO3_mainDir
+ * @param string $newDir Directory of the resulting file
+ * @return string Processed data
+ */
+ protected function cssFixRelativeUrlPaths($contents, $oldDir, $newDir) {
+ $matches = array();
+ preg_match_all('/url[\s]*\([\'\"]?(.*)[\'\"]?\)/iU', $contents, $matches);
+ foreach ($matches[1] as $match) {
+ // remove '," or white-spaces around
+ $match = preg_replace('/[\"\'\s]/', '', $match);
+
+ $newPath = t3lib_div::resolveBackPath('../../' . TYPO3_mainDir . $oldDir . $match);
+ $contents = str_replace($match, $newPath, $contents);
+ }
+ return $contents;
+ }
+}
+
+?>
\ No newline at end of file
// then remove concatenated files from array and add the concatenated file
- // extern concatination
- if ($this->concatenateFiles && $GLOBALS['TYPO3_CONF_VARS'][TYPO3_MODE]['concatenateHandler']) {
- // use extern concatenate routine
+ if ($this->concatenateFiles) {
$params = array (
'jsLibs' => &$this->jsLibs,
'jsFiles' => &$this->jsFiles,
'headerData' => &$this->headerData,
'footerData' => &$this->footerData,
);
- t3lib_div::callUserFunction($GLOBALS['TYPO3_CONF_VARS'][TYPO3_MODE]['concatenateHandler'], $params, $this);
- } else {
- // own method, nothing implemented atm
-
+ if ($GLOBALS['TYPO3_CONF_VARS'][TYPO3_MODE]['concatenateHandler']) {
+ // use extern concatenate routine
+ t3lib_div::callUserFunction($GLOBALS['TYPO3_CONF_VARS'][TYPO3_MODE]['concatenateHandler'], $params, $this);
+ } elseif (TYPO3_MODE === 'BE') {
+ $compressor = t3lib_div::makeInstance('t3lib_compressor');
+ $cssOptions = array('baseDirectories' => $GLOBALS['TBE_TEMPLATE']->getSkinStylesheetDirectories());
+ $this->cssFiles = $compressor->concatenateCssFiles($this->cssFiles, $cssOptions);
+ }
}
}
projects / Packages / TYPO3.CMS.git / commitdiff