array(), 'footer' => array() ); protected $mTimes = array( 'header' => array(), 'footer' => array() ); protected $jsMin = 'JSMin'; protected $cssMin = 'CssMin'; public function __construct() { //Init assetic's object to manage js minify $this->js = new AssetFactory( getcwd() ); $this->js->setAssetManager( new AssetManager ); $this->js->setFilterManager( new FilterManager ); //Init assetic's object to manage css minify $this->css = new AssetFactory( getcwd() ); $this->css->setAssetManager( new AssetManager ); $this->css->setFilterManager( new FilterManager ); //Define filter for js minify $this->js->getFilterManager()->set($this->jsMin, new JSMinFilter); $this->jsFilters []= $this->jsMin; //Define filter for css minify $this->css->getFilterManager()->set($this->cssMin, new CssMinFilter); $this->css->getFilterManager()->set('CssRewrite', new CssRewriteFilter); $this->cssFilters []= $this->cssMin; //Define assets path to save asseticized files $uploadsDir = wp_upload_dir(); $this->assetsUrl = $uploadsDir['baseurl'] . '/am_assets/'; $this->assetsPath = $uploadsDir['basedir'] . '/am_assets/'; if ( !is_dir($this->assetsPath) ) mkdir($this->assetsPath, 0777); $this->cache = new FilesystemCache( $this->assetsPath ); //Detect all js and css added to wordpress and deny their inclusion add_action( 'wp_print_styles', array( $this, 'extractStyles' ) ); add_action( 'wp_print_scripts', array( $this, 'extractScripts' ) ); //Inclusion of scripts in and before add_action( 'wp_head', array( $this, 'headerServe' ) ); add_action( 'wp_footer', array( $this, 'footerServe' ) ); } public function extractScripts() { global $wp_scripts; if ( empty($wp_scripts->queue) ) return; foreach( $wp_scripts->queue as $handle ) { //Remove absolute part of the path if it's specified in the src $script = str_replace( "http://{$_SERVER['SERVER_NAME']}", "", $wp_scripts->registered[$handle]->src ); //Don't manage other domains included scripts if ( strpos($script, "http") === 0 || strpos($script, "//") === 0 ) continue; $where = 'footer'; //Unfortunately not every WP plugin developer is a JS ninja //So... let's put it in the header. if ( empty($wp_scripts->registered[$handle]->extra) ) $where = 'header'; //Save the source filename for every script enqueued $filepath = getcwd() . $script; if ( !file_exists($filepath) ) continue; $this->scripts[ $where ][ $handle ] = $filepath; $this->mTimes[ $where ][ $handle ] = filemtime( $this->scripts[ $where ][ $handle ] ); //Remove scripts from the queue so this plugin will be //responsible to include all the scripts $wp_scripts->dequeue( $handle ); } } public function extractStyles() { global $wp_styles; if ( empty($wp_styles->queue) ) return; foreach( $wp_styles->queue as $handle ) { //Remove absolute part of the path if it's specified in the src $style = str_replace( "http://{$_SERVER['SERVER_NAME']}", "", $wp_styles->registered[$handle]->src ); //Don't manage other domains included stylesheets if ( strpos($style, "http") === 0 || strpos($style, "//") === 0 ) continue; //Separation between css-frameworks stylesheets and .css stylesheets $ext = substr( $style, -5 ); if ( in_array( $ext, array('.sass', '.scss') ) ) { $filepath = getcwd() . $style; if ( !file_exists($filepath) ) continue; $this->sass[ $handle ] = $filepath; $this->mTimesSass[ $handle ] = filemtime($this->sass[ $handle ]); } elseif ( $ext == '.less' ) { $filepath = getcwd() . $style; if ( !file_exists($filepath) ) continue; $this->less[ $handle ] = $filepath; $this->mTimesLess[ $handle ] = filemtime($this->less[ $handle ]); } else { $filepath = getcwd() . $style; if ( !file_exists($filepath) ) continue; $this->styles[ $handle ] = $filepath; $this->mTimesStyles[ $handle ] = filemtime($this->styles[ $handle ]); } //Remove css from the queue so this plugin will be //responsible to include all the stylesheets except other domains ones. $wp_styles->dequeue( $handle ); } } public function headerServe() { //Compile css stylesheets $this->generateCss(); //Compile sass stylesheets $this->generateSass(); //Compile less stylesheets $this->generateLess(); //Manage the stylesheets if ( !empty($this->styles) ) { $mtime = md5(implode('&', $this->mTimesStyles)); if ( !$this->cache->has( "head.css" ) || get_option('as_minify_head_css_mtime') != $mtime ) { update_option( 'as_minify_head_css_mtime', $mtime ); //Save the asseticized stylesheets $dumped = $this->css->createAsset( $this->styles, $this->cssFilters )->dump(); $this->cache->set( "head.css", str_replace('../', '/', $dumped ) ); } //Print css inclusion in the page $this->dumpCss( 'head.css' ); } //Manage the scripts to be printed in the header $this->headerServeScripts(); } public function generateSass() { if ( empty($this->sass) ) return false; $mtime = md5(implode('&', $this->mTimesSass)); //If sass stylesheets have been updated -> compass compile if ( !$this->cache->has( "sass.css" ) || get_option('as_minify_head_sass_mtime') != $mtime ) { update_option( 'as_minify_head_sass_mtime', $mtime ); if ( get_option('am_use_compass', 0) != 0 ) { //Define compass filter instance and sprite images paths $compassInstance = new CompassFilter( get_option('am_compass_path', '/usr/bin/compass') ); $compassInstance->setImagesDir(get_theme_root() . "/" . get_template() . "/images"); $compassInstance->setGeneratedImagesPath( $this->assetsPath ); $compassInstance->setHttpGeneratedImagesPath( str_replace( getcwd(), '', $this->assetsPath ) ); $this->css->getFilterManager()->set('Compass', $compassInstance); $filter = 'Compass'; } else { $this->css->getFilterManager()->set('Scssphp', new ScssphpFilter); $filter = 'Scssphp'; } //Save the asseticized stylesheets $this->cache->set( "sass.css", $this->css->createAsset( $this->sass, array( $filter, 'CssRewrite' ) )->dump() ); } //Add sass compiled stylesheet to normal css queue $this->styles['sass-am-generated'] = $this->assetsPath . "sass.css"; $this->mTimesStyles['sass-am-generated'] = filemtime($this->styles['sass-am-generated']); } public function generateLess() { if ( empty($this->less) ) return false; $mtime = md5(implode('&', $this->mTimesLess)); //If less stylesheets have been updated compile them if ( !$this->cache->has( "less.css" ) || get_option('as_minify_head_less_mtime') != $mtime ) { update_option( 'as_minify_head_less_mtime', $mtime ); //Define compass filter instance and sprite images paths $this->css->getFilterManager()->set('Lessphp', new LessphpFilter); //Save the asseticized stylesheets $this->cache->set( "less.css", $this->css->createAsset( $this->less, array( 'Lessphp', 'CssRewrite' ) )->dump() ); } //Add less compiled stylesheet to normal css queue $this->styles['less-am-generated'] = $this->assetsPath . "less.css"; $this->mTimesStyles['less-am-generated'] = filemtime($this->styles['less-am-generated']); } public function generateCss() { if ( empty($this->styles) ) return false; $mtime = md5(implode('&', $this->mTimesStyles)); //If less stylesheets have been updated compile them if ( !$this->cache->has( "styles.css" ) || get_option('as_minify_head_styles_mtime') != $mtime ) { update_option( 'as_minify_head_styles_mtime', $mtime ); //Save the asseticized stylesheets $this->cache->set( "styles.css", $this->css->createAsset( $this->styles, array( 'CssRewrite' ) )->dump() ); } //Add less compiled stylesheet to normal css queue $this->styles = array( 'styles-am-generated' => $this->assetsPath . "styles.css"); $this->mTimesStyles = array( 'styles-am-generated' => filemtime($this->styles['styles-am-generated']) ); } public function headerServeScripts() { if ( empty($this->scripts['header']) ) return false; $mtime = md5(implode('&', $this->mTimes['header'])); if ( !$this->cache->has( "head.js" ) || get_option('as_minify_head_mtime') != $mtime ) { update_option( 'as_minify_head_mtime', $mtime ); //Save the asseticized header scripts $this->cache->set( "head.js", $this->js->createAsset( $this->scripts['header'], $this->jsFilters )->dump() ); } //Print "; } protected function dumpCss( $filename ) { echo ""; } } new AssetsMinifyInit;