1<?php 2/** 3 * DokuWiki StyleSheet creator 4 * 5 * @license GPL 2 (http://www.gnu.org/licenses/gpl.html) 6 * @author Andreas Gohr <andi@splitbrain.org> 7 */ 8 9if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../').'/'); 10if(!defined('NOSESSION')) define('NOSESSION',true); // we do not use a session or authentication here (better caching) 11require_once(DOKU_INC.'inc/init.php'); 12require_once(DOKU_INC.'inc/pageutils.php'); 13require_once(DOKU_INC.'inc/io.php'); 14require_once(DOKU_INC.'inc/confutils.php'); 15 16// Main (don't run when UNIT test) 17if(!defined('SIMPLE_TEST')){ 18 header('Content-Type: text/css; charset=utf-8'); 19 css_out(); 20} 21 22 23// ---------------------- functions ------------------------------ 24 25/** 26 * Output all needed Styles 27 * 28 * @author Andreas Gohr <andi@splitbrain.org> 29 */ 30function css_out(){ 31 global $conf; 32 global $lang; 33 $print = (bool) $_REQUEST['print']; //print mode? 34 35 // The generated script depends on some dynamic options 36 $cache = getCacheName('styles'.$print,'.css'); 37 38 // Array of needed files and their web locations, the latter ones 39 // are needed to fix relative paths in the stylesheets 40 $files = array(); 41 if($print){ 42 $files[DOKU_TPLINC.'print.css'] = DOKU_TPL; 43 // load plugin styles 44 $files = array_merge($files, css_pluginstyles('print')); 45 $files[DOKU_CONF.'userprint.css'] = ''; 46 }else{ 47 $files[DOKU_INC.'lib/styles/style.css'] = DOKU_BASE.'lib/styles/'; 48 //fixme spellchecker style 49 $files[DOKU_TPLINC.'layout.css'] = DOKU_TPL; 50 $files[DOKU_TPLINC.'design.css'] = DOKU_TPL; 51 if($lang['direction'] == 'rtl'){ 52 $files[DOKU_TPLINC.'rtl.css'] = DOKU_TPL; 53 } 54 // load plugin styles 55 $files = array_merge($files, css_pluginstyles('screen')); 56 $files[DOKU_CONF.'userstyle.css'] = ''; 57 } 58 59 // check cache age 60 if(css_cacheok($cache,array_keys($files))){ 61 readfile($cache); 62 return; 63 } 64 65 // start output buffering and build the stylesheet 66 ob_start(); 67 68 // print the default classes for Interwikilinks 69 css_interwiki(); 70 71 // load files 72 foreach($files as $file => $location){ 73 print css_loadfile($file, $location); 74 } 75 76 // end output buffering and get contents 77 $css = ob_get_contents(); 78 ob_end_clean(); 79 80 // compress whitespace and comments 81 if($conf['compress']){ 82 $css = css_compress($css); 83 } 84 85 // save cache file 86 io_saveFile($cache,$css); 87 88 // finally send output 89 print $css; 90} 91 92/** 93 * Checks if a CSS Cache file still is valid 94 * 95 * @author Andreas Gohr <andi@splitbrain.org> 96 */ 97function css_cacheok($cache,$files){ 98 $ctime = @filemtime($cache); 99 if(!$ctime) return false; //There is no cache 100 101 // some additional files to check 102 $files[] = DOKU_CONF.'dokuwiki.conf'; 103 $files[] = DOKU_CONF.'local.conf'; 104 $files[] = __FILE__; 105 106 // now walk the files 107 foreach($files as $file){ 108 if(@filemtime($file) > $ctime){ 109 return false; 110 } 111 } 112 return true; 113} 114 115/** 116 * Prints classes for interwikilinks 117 * 118 * Interwiki links have two classes: 'interwiki' and 'iw_$name>' where 119 * $name is the identifier given in the config. All Interwiki links get 120 * an default style with a default icon. If a special icon is available 121 * for an interwiki URL it is set in it's own class. Both classes can be 122 * overwritten in the template or userstyles. 123 * 124 * @author Andreas Gohr <andi@splitbrain.org> 125 */ 126function css_interwiki(){ 127 128 // default style 129 echo 'a.interwiki {'; 130 echo ' background: transparent url('.DOKU_BASE.'lib/images/interwiki.png) 0px 1px no-repeat;'; 131 echo ' padding-left: 16px;'; 132 echo '}'; 133 134 // additional styles when icon available 135 $iwlinks = getInterwiki(); 136 foreach(array_keys($iwlinks) as $iw){ 137 if(@file_exists(DOKU_INC.'lib/images/interwiki/'.$iw.'.png')){ 138 echo "a.iw_$iw {"; 139 echo ' background-image: url('.DOKU_BASE.'lib/images/interwiki/'.$iw.'.png)'; 140 echo '}'; 141 }elseif(@file_exists(DOKU_INC.'lib/images/interwiki/'.$iw.'.gif')){ 142 echo "a.iw_$iw {"; 143 echo ' background-image: url('.DOKU_BASE.'lib/images/interwiki/'.$iw.'.gif)'; 144 echo '}'; 145 } 146 } 147 148} 149 150/** 151 * Loads a given file and fixes relative URLs with the 152 * given location prefix 153 */ 154function css_loadfile($file,$location=''){ 155 if(!@file_exists($file)) return ''; 156 $css = io_readFile($file); 157 if(!$location) return $css; 158 159 $css = preg_replace('!(url\( *)([^/])!','\\1'.$location.'\\2',$css); 160 return $css; 161} 162 163/** 164 * Returns a list of possible Plugin Styles (no existance check here) 165 * 166 * @author Andreas Gohr <andi@splitbrain.org> 167 */ 168function css_pluginstyles($mode='screen'){ 169 $list = array(); 170 $plugins = plugin_list(); 171 foreach ($plugins as $p){ 172 if($mode == 'print'){ 173 $list[DOKU_PLUGIN."$p/print.css"] = DOKU_BASE."lib/plugins/$p/"; 174 }else{ 175 $list[DOKU_PLUGIN."$p/style.css"] = DOKU_BASE."lib/plugins/$p/"; 176 $list[DOKU_PLUGIN."$p/screen.css"] = DOKU_BASE."lib/plugins/$p/"; 177 } 178 } 179 return $list; 180} 181 182/** 183 * Very simple CSS optimizer 184 * 185 * @author Andreas Gohr <andi@splitbrain.org> 186 */ 187function css_compress($css){ 188 // strip whitespaces 189 $css = preg_replace('![\r\n\t ]+!',' ',$css); 190 $css = preg_replace('/ ?([:;,{}]) ?/','\\1',$css); 191 192 // strip comments (ungreedy) 193 // We keep very small comments to maintain typical browser hacks 194 $css = preg_replace('!(/\*)(.{4,})(\*/)!U','',$css); 195 196 // shorten colors 197 $css = preg_replace("/#([0-9a-fA-F]{1})\\1([0-9a-fA-F]{1})\\2([0-9a-fA-F]{1})\\3/", "#\\1\\2\\3",$css); 198 199 return $css; 200} 201 202 203//Setup VIM: ex: et ts=4 enc=utf-8 : 204?> 205
