NP_admin/trunk/NP_SkinVarManager.php

   1 <?php\r
   2 class NP_SkinVarManager extends NucleusPlugin {\r
   3         function getName() { return 'NP_SkinVarManager'; }\r
   4         function getMinNucleusVersion() { return 330; }\r
   5         function getAuthor()    { return 'Katsumi'; }\r
   6         function getVersion() { return '0.1.1'; }\r
   7         function getURL() {return 'http://japan.nucleuscms.org/wiki/plugins:authors:katsumi';}\r
   8         function getDescription() {\r
   9                 return 'This plugin raises RegisterSkinVars event for overriding skinvars and ifvars.<br />\r
  10                         Also raises PreParseCentents event for tracking what will be parsed as skin.';\r
  11         }\r
  12         function supportsFeature($what) { return ($what=='SqlTablePrefix')?1:0; }\r
  13         function getEventList() { return array('InitSkinParse','PreSkinParse'); }\r
  14         function doSkinVar($skinType,$type,$p2='') {\r
  15                 // The first argument shows what skinver is overrided.\r
  16                 // The method that override core's function is defined in $this->skinvars.\r
  17                 $args=func_get_args();\r
  18                 $skinType=array_shift($args);\r
  19                 $type=array_shift($args);\r
  20                 array_unshift($args,$skinType);\r
  21                 $function=@$this->skinvars[$type];\r
  22                 if ($function) call_user_func_array($function,$args);\r
  23         }\r
  24         function doIf($p1='',$p2=''){\r
  25                 // The first argument contains two things. One is what ifver is overrided.\r
  26                 // The other is what is the first argument used in overrided method.\r
  27                 // These are connected by ":" as delimiter.\r
  28                 // The method that override core's function is defined in $this->ifvars.\r
  29                 if (!preg_match('/^([a-zA-Z_0-9]+):([\s\S]*)$/',$p1,$m)) exit('Fatal error when parsing if skinvar');\r
  30                 $type=$m[1];\r
  31                 $p1=$m[2];\r
  32                 $function=@$this->ifvars[$type];\r
  33                 if ($function) return call_user_func($function,$p1,$p2);\r
  34                 else exit('Fatal error when parsing if skinvar');\r
  35         }\r
  36         var $skinvars,$ifvars,$search,$replace;\r
  37         function event_InitSkinParse(&$data) {\r
  38                 global $manager;\r
  39                 // Raise an event\r
  40                 $skinvars=$ifvars=array();\r
  41                 $manager->notify('RegisterSkinVars',array('skinvars' => &$skinvars, 'ifvars' => &$ifvars));\r
  42                 // parsedinclude is overrided by this plugin's method.\r
  43                 // The other plugin's method cannot override parsedinclude.\r
  44                 $skinvars['parsedinclude']=array(&$this,'parse_parsedinclude');\r
  45                 // Construct search and replace arrays.\r
  46                 $search=$replace=array();\r
  47                 foreach($skinvars as $key=>$function){\r
  48                         if (!preg_match('/^[a-zA-Z0-9_]+$/',$key)) continue;\r
  49                         $search[]="<%$key%>";\r
  50                         $replace[]="<%SkinVarManager($key)%>";\r
  51                         $search[]="<%$key(";\r
  52                         $replace[]="<%SkinVarManager($key,";\r
  53                 }\r
  54                 foreach($ifvars as $key=>$function){\r
  55                         if (!preg_match('/^[a-zA-Z0-9_]+$/',$key)) continue;\r
  56                         foreach(array('if','ifnot','elseif','elseifnot') as $if){\r
  57                                 $search[]="<%$if($key)%>";\r
  58                                 $replace[]="<%$if(SkinVarManager,$key:)%>";\r
  59                                 $search[]="<%$if($key,";\r
  60                                 $replace[]="<%$if(SkinVarManager,$key:";\r
  61                         }\r
  62                 }\r
  63                 // Set the object properties\r
  64                 $this->skinvars=$skinvars;\r
  65                 $this->ifvars=$ifvars;\r
  66                 $this->search=$search;\r
  67                 $this->replace=$replace;\r
  68                 // Set handler and parser\r
  69                 $this->skin=&$data['skin'];\r
  70                 $skin=&$data['skin'];\r
  71                 $type=&$data['type'];\r
  72                 $actions = $skin->getAllowedActionsForType($type);\r
  73                 $this->handler =& new ACTIONS($type, $skin);\r
  74                 $this->parser =& new PARSER($actions, $this->handler);\r
  75                 $this->handler->setParser($this->parser);\r
  76                 $this->handler->setSkin($skin);\r
  77         }\r
  78         // Public properties\r
  79         var $skin,$handler,$parser;\r
  80         function event_PreSkinParse(&$data) {\r
  81                 // Convert\r
  82                 $contents=&$data['contents'];\r
  83                 $contents=str_replace($this->search,$this->replace,$contents);\r
  84         }\r
  85         function parse_parsedinclude($skintype,$filename) {\r
  86                 // check current level\r
  87                 if ($this->handler->level > 3) return;   // max. depth reached (avoid endless loop)\r
  88                 $filename = $this->handler->getIncludeFileName($filename);\r
  89                 if (!file_exists($filename)) {\r
  90                         $contents=false;\r
  91                 } else {\r
  92                         $fsize = filesize($filename);\r
  93                         // nothing to include\r
  94                         if ($fsize <= 0) {\r
  95                                 $contents='';\r
  96                         } else {\r
  97                                 // read file\r
  98                                 $fd = fopen ($filename, 'r');\r
  99                                 $contents = fread ($fd, $fsize);\r
 100                                 fclose ($fd);\r
 101                         }\r
 102                 }\r
 103                 $this->parse($contents,$filename);\r
 104         }\r
 105         function parse(&$contents,$filename='') {\r
 106                 global $manager;\r
 107                 // Raise an event\r
 108                 $manager->notify('PreParseContents',\r
 109                         array('contents' => &$contents,\r
 110                                 'filename' => $filename,\r
 111                                 'skin' => &$this->skin));\r
 112                 // convert\r
 113                 $contents=str_replace($this->search,$this->replace,$contents);\r
 114                 // parse file contents\r
 115                 if (is_string($contents) && strlen($contents)) {\r
 116                         $this->handler->level++;\r
 117                         $this->parser->parse($contents);\r
 118                         $this->handler->level--;\r
 119                 }\r
 120         }\r
 121 }\r