xref: /plugin/mermaid/action.php (revision 6e5341c627f9f81fae7911a595b98c51a67840eb) 
1<?php
2/**
3 * DokuWiki Plugin mermaid (Action Component)
4 *
5 * @license GPL 2 http://www.gnu.org/licenses/gpl-2.0.html
6 * @author  Robert Weinmeister <develop@weinmeister.org>
7 */
8
9class action_plugin_mermaid extends \dokuwiki\Extension\ActionPlugin
10{
11    /** @inheritDoc */
12    public function register(Doku_Event_Handler $controller)
13    {
14        $controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, 'load');
15    }
16
17    public function load(Doku_Event $event, $param)
18    {
19        // Can be changed for debugging Mermaid
20        // https://mermaid.js.org/config/directives.html#changing-loglevel-via-directive
21        define("MERMAIDLOGLEVEL", "error");
22
23        switch ($this->getConf('location')) {
24            case 'local':
25                $event->data['script'][] = array
26                (
27                    'type'    => 'text/javascript',
28                    'charset' => 'utf-8',
29                    'src' => DOKU_BASE.'lib/plugins/mermaid/mermaid.min.js'
30                );
31                break;
32            case 'latest':
33                $event->data['script'][] = array
34                (
35                    'type'    => 'module',
36                    'charset' => 'utf-8',
37                    '_data' => "import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid/+esm';
38                                mermaid.initialize({startOnLoad: true, logLevel: '".MERMAIDLOGLEVEL."'});"
39                );
40                break;
41            case 'remote100':
42                $event->data['script'][] = array
43                (
44                    'type'    => 'module',
45                    'charset' => 'utf-8',
46                    '_data' => "import mermaid from 'https://cdn.jsdelivr.net/npm/mermaid@10.0/+esm';
47                                mermaid.initialize({startOnLoad: true, logLevel: '".MERMAIDLOGLEVEL."'});"
48                );
49                break;
50            case 'remote94':
51                $event->data['script'][] = array
52                (
53                    'type'    => 'text/javascript',
54                    'charset' => 'utf-8',
55                    'src' => 'https://cdn.jsdelivr.net/npm/mermaid@9.4/dist/mermaid.min.js'
56                );
57                break;
58            case 'remote93':
59                $event->data['script'][] = array
60                (
61                    'type'    => 'text/javascript',
62                    'charset' => 'utf-8',
63                    'src' => 'https://cdn.jsdelivr.net/npm/mermaid@9.3/dist/mermaid.min.js'
64                );
65                break;
66            default:
67        }
68
69        $event->data['link'][] = array
70        (
71            'rel'     => 'stylesheet',
72            'type'    => 'text/css',
73            'href'    => DOKU_BASE."lib/plugins/mermaid/mermaid.css",
74        );
75
76        switch ($this->getConf('location')) {
77            case 'locally':
78            case 'remote94':
79            case 'remote93':
80                $event->data['script'][] = array
81                (
82                    'type'    => 'text/javascript',
83                    'charset' => 'utf-8',
84                    '_data'   => "mermaid.initialize({startOnLoad: true, logLevel: '".MERMAIDLOGLEVEL."'});"
85                );
86                break;
87            default:
88        }
89    }
90}
91