lib/lessphp/Tree.php

   1 <?php
   2
   3 /**
   4  * Tree
   5  *
   6  * @package Less
   7  * @subpackage tree
   8  */
   9 class Less_Tree{
  10
  11         public $cache_string;
  12
  13         public function toCSS(){
  14                 $output = new Less_Output();
  15                 $this->genCSS($output);
  16                 return $output->toString();
  17         }
  18
  19
  20     /**
  21      * Generate CSS by adding it to the output object
  22      *
  23      * @param Less_Output $output The output
  24      * @return void
  25      */
  26     public function genCSS($output){}
  27
  28
  29         /**
  30          * @param Less_Tree_Ruleset[] $rules
  31          */
  32         public static function outputRuleset( $output, $rules ){
  33
  34                 $ruleCnt = count($rules);
  35                 Less_Environment::$tabLevel++;
  36
  37
  38                 // Compressed
  39                 if( Less_Parser::$options['compress'] ){
  40                         $output->add('{');
  41                         for( $i = 0; $i < $ruleCnt; $i++ ){
  42                                 $rules[$i]->genCSS( $output );
  43                         }
  44
  45                         $output->add( '}' );
  46                         Less_Environment::$tabLevel--;
  47                         return;
  48                 }
  49
  50
  51                 // Non-compressed
  52                 $tabSetStr = "\n".str_repeat( '  ' , Less_Environment::$tabLevel-1 );
  53                 $tabRuleStr = $tabSetStr.'  ';
  54
  55                 $output->add( " {" );
  56                 for($i = 0; $i < $ruleCnt; $i++ ){
  57                         $output->add( $tabRuleStr );
  58                         $rules[$i]->genCSS( $output );
  59                 }
  60                 Less_Environment::$tabLevel--;
  61                 $output->add( $tabSetStr.'}' );
  62
  63         }
  64
  65         public function accept($visitor){}
  66
  67
  68         public static function ReferencedArray($rules){
  69                 foreach($rules as $rule){
  70                         if( method_exists($rule, 'markReferenced') ){
  71                                 $rule->markReferenced();
  72                         }
  73                 }
  74         }
  75
  76
  77         /**
  78          * Requires php 5.3+
  79          */
  80         public static function __set_state($args){
  81
  82                 $class = get_called_class();
  83                 $obj = new $class(null,null,null,null);
  84                 foreach($args as $key => $val){
  85                         $obj->$key = $val;
  86                 }
  87                 return $obj;
  88         }
  89
  90 }