--- /dev/null
+<?php
+
+/**
+ * CSS @import node
+ *
+ * The general strategy here is that we don't want to wait
+ * for the parsing to be completed, before we start importing
+ * the file. That's because in the context of a browser,
+ * most of the time will be spent waiting for the server to respond.
+ *
+ * On creation, we push the import path to our import queue, though
+ * `import,push`, we also pass it a callback, which it'll call once
+ * the file has been fetched, and parsed.
+ *
+ * @package Less
+ * @subpackage tree
+ */
+class Less_Tree_Import extends Less_Tree{
+
+ public $options;
+ public $index;
+ public $path;
+ public $features;
+ public $currentFileInfo;
+ public $css;
+ public $skip;
+ public $root;
+ public $type = 'Import';
+
+ public function __construct($path, $features, $options, $index, $currentFileInfo = null ){
+ $this->options = $options;
+ $this->index = $index;
+ $this->path = $path;
+ $this->features = $features;
+ $this->currentFileInfo = $currentFileInfo;
+
+ if( is_array($options) ){
+ $this->options += array('inline'=>false);
+
+ if( isset($this->options['less']) || $this->options['inline'] ){
+ $this->css = !isset($this->options['less']) || !$this->options['less'] || $this->options['inline'];
+ } else {
+ $pathValue = $this->getPath();
+ if( $pathValue && preg_match('/css([\?;].*)?$/',$pathValue) ){
+ $this->css = true;
+ }
+ }
+ }
+ }
+
+//
+// The actual import node doesn't return anything, when converted to CSS.
+// The reason is that it's used at the evaluation stage, so that the rules
+// it imports can be treated like any other rules.
+//
+// In `eval`, we make sure all Import nodes get evaluated, recursively, so
+// we end up with a flat structure, which can easily be imported in the parent
+// ruleset.
+//
+
+ public function accept($visitor){
+
+ if( $this->features ){
+ $this->features = $visitor->visitObj($this->features);
+ }
+ $this->path = $visitor->visitObj($this->path);
+
+ if( !$this->options['inline'] && $this->root ){
+ $this->root = $visitor->visit($this->root);
+ }
+ }
+
+ /**
+ * @see Less_Tree::genCSS
+ */
+ public function genCSS( $output ){
+ if( $this->css ){
+
+ $output->add( '@import ', $this->currentFileInfo, $this->index );
+
+ $this->path->genCSS( $output );
+ if( $this->features ){
+ $output->add( ' ' );
+ $this->features->genCSS( $output );
+ }
+ $output->add( ';' );
+ }
+ }
+
+ public function toCSS(){
+ $features = $this->features ? ' ' . $this->features->toCSS() : '';
+
+ if ($this->css) {
+ return "@import " . $this->path->toCSS() . $features . ";\n";
+ } else {
+ return "";
+ }
+ }
+
+ /**
+ * @return string
+ */
+ public function getPath(){
+ if ($this->path instanceof Less_Tree_Quoted) {
+ $path = $this->path->value;
+ $path = ( isset($this->css) || preg_match('/(\.[a-z]*$)|([\?;].*)$/',$path)) ? $path : $path . '.less';
+ } else if ($this->path instanceof Less_Tree_URL) {
+ $path = $this->path->value->value;
+ }else{
+ return null;
+ }
+
+ //remove query string and fragment
+ return preg_replace('/[\?#][^\?]*$/','',$path);
+ }
+
+ public function compileForImport( $env ){
+ return new Less_Tree_Import( $this->path->compile($env), $this->features, $this->options, $this->index, $this->currentFileInfo);
+ }
+
+ public function compilePath($env) {
+ $path = $this->path->compile($env);
+ $rootpath = '';
+ if( $this->currentFileInfo && $this->currentFileInfo['rootpath'] ){
+ $rootpath = $this->currentFileInfo['rootpath'];
+ }
+
+
+ if( !($path instanceof Less_Tree_URL) ){
+ if( $rootpath ){
+ $pathValue = $path->value;
+ // Add the base path if the import is relative
+ if( $pathValue && Less_Environment::isPathRelative($pathValue) ){
+ $path->value = $this->currentFileInfo['uri_root'].$pathValue;
+ }
+ }
+ $path->value = Less_Environment::normalizePath($path->value);
+ }
+
+
+
+ return $path;
+ }
+
+ public function compile( $env ){
+
+ $evald = $this->compileForImport($env);
+
+ //get path & uri
+ $path_and_uri = null;
+ if( is_callable(Less_Parser::$options['import_callback']) ){
+ $path_and_uri = call_user_func(Less_Parser::$options['import_callback'],$evald);
+ }
+
+ if( !$path_and_uri ){
+ $path_and_uri = $evald->PathAndUri();
+ }
+
+ if( $path_and_uri ){
+ list($full_path, $uri) = $path_and_uri;
+ }else{
+ $full_path = $uri = $evald->getPath();
+ }
+
+
+ //import once
+ if( $evald->skip( $full_path, $env) ){
+ return array();
+ }
+
+ if( $this->options['inline'] ){
+ //todo needs to reference css file not import
+ //$contents = new Less_Tree_Anonymous($this->root, 0, array('filename'=>$this->importedFilename), true );
+
+ Less_Parser::AddParsedFile($full_path);
+ $contents = new Less_Tree_Anonymous( file_get_contents($full_path), 0, array(), true );
+
+ if( $this->features ){
+ return new Less_Tree_Media( array($contents), $this->features->value );
+ }
+
+ return array( $contents );
+ }
+
+ // optional (need to be before "CSS" to support optional CSS imports. CSS should be checked only if empty($this->currentFileInfo))
+ if( isset($this->options['optional']) && $this->options['optional'] && !file_exists($full_path) && (!$evald->css || !empty($this->currentFileInfo))) {
+ return array();
+ }
+
+
+ // css ?
+ if( $evald->css ){
+ $features = ( $evald->features ? $evald->features->compile($env) : null );
+ return new Less_Tree_Import( $this->compilePath( $env), $features, $this->options, $this->index);
+ }
+
+
+ return $this->ParseImport( $full_path, $uri, $env );
+ }
+
+
+ /**
+ * Using the import directories, get the full absolute path and uri of the import
+ *
+ * @param Less_Tree_Import $evald
+ */
+ public function PathAndUri(){
+
+ $evald_path = $this->getPath();
+
+ if( $evald_path ){
+
+ $import_dirs = array();
+
+ if( Less_Environment::isPathRelative($evald_path) ){
+ //if the path is relative, the file should be in the current directory
+ $import_dirs[ $this->currentFileInfo['currentDirectory'] ] = $this->currentFileInfo['uri_root'];
+
+ }else{
+ //otherwise, the file should be relative to the server root
+ $import_dirs[ $this->currentFileInfo['entryPath'] ] = $this->currentFileInfo['entryUri'];
+
+ //if the user supplied entryPath isn't the actual root
+ $import_dirs[ $_SERVER['DOCUMENT_ROOT'] ] = '';
+
+ }
+
+ // always look in user supplied import directories
+ $import_dirs = array_merge( $import_dirs, Less_Parser::$options['import_dirs'] );
+
+
+ foreach( $import_dirs as $rootpath => $rooturi){
+ if( is_callable($rooturi) ){
+ list($path, $uri) = call_user_func($rooturi, $evald_path);
+ if( is_string($path) ){
+ $full_path = $path;
+ return array( $full_path, $uri );
+ }
+ }elseif( !empty($rootpath) ){
+
+ $path = rtrim($rootpath,'/\\').'/'.ltrim($evald_path,'/\\');
+
+ if( file_exists($path) ){
+ $full_path = Less_Environment::normalizePath($path);
+ $uri = Less_Environment::normalizePath(dirname($rooturi.$evald_path));
+ return array( $full_path, $uri );
+ } elseif( file_exists($path.'.less') ){
+ $full_path = Less_Environment::normalizePath($path.'.less');
+ $uri = Less_Environment::normalizePath(dirname($rooturi.$evald_path.'.less'));
+ return array( $full_path, $uri );
+ }
+ }
+ }
+ }
+ }
+
+
+ /**
+ * Parse the import url and return the rules
+ *
+ * @return Less_Tree_Media|array
+ */
+ public function ParseImport( $full_path, $uri, $env ){
+
+ $import_env = clone $env;
+ if( (isset($this->options['reference']) && $this->options['reference']) || isset($this->currentFileInfo['reference']) ){
+ $import_env->currentFileInfo['reference'] = true;
+ }
+
+ if( (isset($this->options['multiple']) && $this->options['multiple']) ){
+ $import_env->importMultiple = true;
+ }
+
+ $parser = new Less_Parser($import_env);
+ $root = $parser->parseFile($full_path, $uri, true);
+
+
+ $ruleset = new Less_Tree_Ruleset(array(), $root->rules );
+ $ruleset->evalImports($import_env);
+
+ return $this->features ? new Less_Tree_Media($ruleset->rules, $this->features->value) : $ruleset->rules;
+ }
+
+
+ /**
+ * Should the import be skipped?
+ *
+ * @return boolean|null
+ */
+ private function Skip($path, $env){
+
+ $path = Less_Parser::AbsPath($path, true);
+
+ if( $path && Less_Parser::FileParsed($path) ){
+
+ if( isset($this->currentFileInfo['reference']) ){
+ return true;
+ }
+
+ return !isset($this->options['multiple']) && !$env->importMultiple;
+ }
+
+ }
+}
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff