1<?php 2/** 3 * DokuWiki Plugin struct (Action Component) 4 * 5 * @license GPL 2 http://www.gnu.org/licenses/gpl-2.0.html 6 * @author Andreas Gohr, Michael Große <dokuwiki@cosmocode.de> 7 */ 8 9// must be run within Dokuwiki 10if(!defined('DOKU_INC')) die(); 11 12/** 13 * Class action_plugin_struct_output 14 * 15 * This action component handles the automatic output of all schema data that has been assigned 16 * to the current page by appending the appropriate instruction to the handler calls. 17 * 18 * The real output creation is done within the syntax component 19 * @see syntax_plugin_struct_output 20 */ 21class action_plugin_struct_output extends DokuWiki_Action_Plugin { 22 23 /** 24 * Registers a callback function for a given event 25 * 26 * @param Doku_Event_Handler $controller DokuWiki's event controller object 27 * @return void 28 */ 29 public function register(Doku_Event_Handler $controller) { 30 $controller->register_hook('PARSER_HANDLER_DONE', 'AFTER', $this, 'handle_output'); 31 } 32 33 /** 34 * Appends the instruction to render our syntax output component to each page 35 * after the first found headline or the very begining if no headline was found 36 * 37 * @param Doku_Event $event 38 * @param $param 39 */ 40 public function handle_output(Doku_Event $event, $param) { 41 global $ID, $ACT; 42 if (act_clean($ACT) !== 'show') { 43 return; 44 } 45 if(!page_exists($ID)) return; 46 $ins = -1; 47 $pos = 0; 48 foreach($event->data->calls as $num => $call) { 49 // try to find the first header 50 if($call[0] == 'header') { 51 $pos = $call[2]; 52 $ins = $num; 53 break; 54 } 55 56 // abort when after we looked at the first 150 bytes 57 if($call[3] > 150) { 58 break; 59 } 60 } 61 62 // insert our own call after the found position 63 array_splice( 64 $event->data->calls, 65 $ins+1, 66 0, 67 array( 68 array( 69 'plugin', 70 array( 71 'struct_output', array('pos' => $pos), DOKU_LEXER_SPECIAL, '' 72 ), 73 $pos 74 ) 75 ) 76 ); 77 } 78 79} 80 81// vim:ts=4:sw=4:et: 82