1<?php 2/** 3 * Utilities for handling plugins 4 * 5 * @license GPL 2 (http://www.gnu.org/licenses/gpl.html) 6 * @author Andreas Gohr <andi@splitbrain.org> 7 */ 8 9/** 10 * prints needed HTML to include plugin CSS and JS files 11 * 12 * @deprecated - now handled by the style and script loader in lib/exe 13 */ 14function plugin_printCSSJS(){ 15 global $conf; 16 17 if (isset($conf['pluginmanager']) && $conf['pluginmanager'] && 18 // implicit check that plugin manager has setup the aggregated files - it has styles of its own 19 @file_exists(DOKU_INC.'lib/plugins/plugin_style.css')) { 20 // individual plugin instances of the files swept into one file each 21 $dir = "lib/plugins/plugin_"; 22 if(@file_exists(DOKU_INC.$dir.'style.css')){ 23 print ' <link rel="stylesheet" type="text/css" href="'.DOKU_BASE.$dir.'style.css" />'."\n"; 24 } 25 if(@file_exists(DOKU_INC.$dir.'screen.css')){ 26 print ' <link rel="stylesheet" media="screen" type="text/css" href="'.DOKU_BASE.$dir.'screen.css" />'."\n"; 27 } 28 if(@file_exists(DOKU_INC.$dir.'print.css')){ 29 print ' <link rel="stylesheet" media="print" type="text/css" href="'.DOKU_BASE.$dir.'print.css" />'."\n"; 30 } 31 if(@file_exists(DOKU_INC.$dir.'script.js')){ 32 print ' <script type="text/javascript" language="javascript" charset="utf-8" src="'.DOKU_BASE.$dir.'script.js"></script>'."\n"; 33 } 34 } else { 35 // no plugin manager (or aggregate files not setup) so individual instances of these files for any plugin that uses them 36 $plugins = plugin_list(); 37 foreach ($plugins as $p){ 38 $dir = "lib/plugins/$p/"; 39 if(@file_exists(DOKU_INC.$dir.'style.css')){ 40 print ' <link rel="stylesheet" type="text/css" href="'.DOKU_BASE.$dir.'style.css" />'."\n"; 41 } 42 if(@file_exists(DOKU_INC.$dir.'screen.css')){ 43 print ' <link rel="stylesheet" media="screen" type="text/css" href="'.DOKU_BASE.$dir.'screen.css" />'."\n"; 44 } 45 if(@file_exists(DOKU_INC.$dir.'print.css')){ 46 print ' <link rel="stylesheet" media="print" type="text/css" href="'.DOKU_BASE.$dir.'print.css" />'."\n"; 47 } 48 if(@file_exists(DOKU_INC.$dir.'script.js')){ 49 print ' <script type="text/javascript" language="javascript" charset="utf-8" src="'.DOKU_BASE.$dir.'script.js"></script>'."\n"; 50 } 51 } 52 } 53} 54 55/** 56 * Returns a list of available plugins of given type 57 * 58 * Returns all plugins if no type given 59 * 60 * @author Andreas Gohr <andi@splitbrain.org> 61 */ 62function plugin_list($type=''){ 63 $plugins = array(); 64 if ($dh = opendir(DOKU_PLUGIN)) { 65 while (false !== ($plugin = readdir($dh))) { 66 if ($plugin == '.' || $plugin == '..' || $plugin == 'tmp') continue; 67 if (is_file(DOKU_PLUGIN.$plugin)) continue; 68 69 if ($type=='' || @file_exists(DOKU_PLUGIN."$plugin/$type.php")){ 70 $plugins[] = $plugin; 71 } else { 72 if ($dp = @opendir(DOKU_PLUGIN."$plugin/$type/")) { 73 while (false !== ($component = readdir($dp))) { 74 if ($component == '.' || $component == '..' || strtolower(substr($component, -4)) != ".php") continue; 75 if (is_file(DOKU_PLUGIN."$plugin/$type/$component")) { 76 $plugins[] = $plugin.'_'.substr($component, 0, -4); 77 } 78 } 79 closedir($dp); 80 } 81 } 82 } 83 closedir($dh); 84 } 85 return $plugins; 86} 87 88/** 89 * Loads the given plugin and creates an object of it 90 * 91 * @author Andreas Gohr <andi@splitbrain.org> 92 * 93 * @param $type string type of plugin to load 94 * @param $name string name of the plugin to load 95 * @return objectreference the plugin object or null on failure 96 */ 97function &plugin_load($type,$name){ 98 //we keep all loaded plugins available in global scope for reuse 99 global $DOKU_PLUGINS; 100 101 102 //plugin already loaded? 103 if($DOKU_PLUGINS[$type][$name] != null){ 104 return $DOKU_PLUGINS[$type][$name]; 105 } 106 107 //try to load the wanted plugin file 108 if (file_exists(DOKU_PLUGIN."$name/$type.php")){ 109 include_once(DOKU_PLUGIN."$name/$type.php"); 110 }else{ 111 list($plugin, $component) = preg_split("/_/",$name, 2); 112 if (!$component || !include_once(DOKU_PLUGIN."$plugin/$type/$component.php")) { 113 return null; 114 } 115 } 116 117 //construct class and instanciate 118 $class = $type.'_plugin_'.$name; 119 if (!class_exists($class)) return null; 120 121 $DOKU_PLUGINS[$type][$name] = new $class; 122 return $DOKU_PLUGINS[$type][$name]; 123} 124