diff options
Diffstat (limited to 'lib/exe/css.php')
| -rw-r--r-- | lib/exe/css.php | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/lib/exe/css.php b/lib/exe/css.php index e4105b427..02ed169c4 100644 --- a/lib/exe/css.php +++ b/lib/exe/css.php @@ -135,6 +135,12 @@ function css_out(){ $css = css_compress($css); } + // embed small images right into the stylesheet + if($conf['cssdatauri']){ + $base = preg_quote(DOKU_BASE,'#'); + $css = preg_replace_callback('#(url\([ \'"]*)('.$base.')(.*?(?:\.(png|gif)))#i','css_datauri',$css); + } + // save cache file io_saveFile($cache,$css); if(function_exists('gzopen')) io_saveFile("$cache.gz",$css); @@ -271,11 +277,36 @@ function css_loadfile($file,$location=''){ $css = io_readFile($file); if(!$location) return $css; - $css = preg_replace('#(url\([ \'"]*)(?!/|http://|https://| |\'|")#','\\1'.$location,$css); - $css = preg_replace('#(@import\s+[\'"])(?!/|http://|https://)#', '\\1'.$location, $css); + $css = preg_replace('#(url\([ \'"]*)(?!/|data:|http://|https://| |\'|")#','\\1'.$location,$css); + $css = preg_replace('#(@import\s+[\'"])(?!/|data:|http://|https://)#', '\\1'.$location, $css); + return $css; } +/** + * Converte local image URLs to data URLs if the filesize is small + * + * Callback for preg_replace_callback + */ +function css_datauri($match){ + $pre = unslash($match[1]); + $base = unslash($match[2]); + $url = unslash($match[3]); + $ext = unslash($match[4]); + + $local = DOKU_INC.$url; + $size = @filesize($local); + if($size && $size < 600){ + $data = base64_encode(file_get_contents($local)); + } + if($data){ + $url = 'data:image/'.$ext.';base64,'.$data; + }else{ + $url = $base.$url; + } + return $pre.$url; +} + /** * Returns a list of possible Plugin Styles (no existance check here) |