xref: /plugin/struct/action/title.php (revision 7cbcfbdb68125878b37fede99d5e33997295c2f6) 
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
10use dokuwiki\plugin\struct\meta\StructException;
11use dokuwiki\plugin\struct\meta\Title;
12
13if(!defined('DOKU_INC')) die();
14
15/**
16 * Class action_plugin_struct_title
17 *
18 * Saves the page title when meta data is saved
19 */
20class action_plugin_struct_title extends DokuWiki_Action_Plugin {
21
22    /**
23     * Registers a callback function for a given event
24     *
25     * @param Doku_Event_Handler $controller DokuWiki's event controller object
26     * @return void
27     */
28    public function register(Doku_Event_Handler $controller) {
29        $controller->register_hook('PARSER_METADATA_RENDER', 'AFTER', $this, 'handle_meta');
30    }
31
32    /**
33     * Store the page's title
34     *
35     * @param Doku_Event $event
36     * @param $param
37     */
38    public function handle_meta(Doku_Event $event, $param) {
39        $id = $event->data['current']['last_change']['id'];
40        try {
41            $title = new Title($id);
42
43            if(!blank($event->data['current']['title'])) {
44                $title->setTitle($event->data['current']['title']);
45            } else {
46                $title->setTitle(null);
47            }
48        } catch(StructException $e) {
49            msg($e->getMessage(), -1);
50        }
51    }
52
53}
54