xref: /plugin/diagrams/syntax/mediafile.php (revision dce55f69c0abede1c1a16c969551e8f3fe04b18f) 
1<?php
2
3use dokuwiki\plugin\diagrams\Diagrams;
4
5/**
6 * Class syntax_plugin_diagrams
7 */
8class syntax_plugin_diagrams_mediafile extends DokuWiki_Syntax_Plugin
9{
10
11    /**
12     * @inheritdoc
13     */
14    public function getType()
15    {
16        return 'substition';
17    }
18
19    /**
20     * @inheritdoc
21     */
22    public function getSort()
23    {
24        return 319;
25    }
26
27    /**
28     * @inheritdoc
29     */
30    public function connectTo($mode)
31    {
32        // only register if mediafile mode is enabled
33        if (!($this->getConf('mode') & Diagrams::MODE_MEDIA)) return;
34
35        // grab all SVG images
36        $this->Lexer->addSpecialPattern('\{\{[^\}]+(?:\.svg)[^\}]*?\}\}',$mode,'plugin_diagrams_mediafile');
37    }
38
39    /**
40     * Parse SVG syntax into media data
41     *
42     * @param string $match
43     * @param int $state
44     * @param int $pos
45     * @param Doku_Handler $handler
46     * @return array|bool
47     */
48    public function handle($match, $state, $pos, Doku_Handler $handler)
49    {
50        $data = Doku_Handler_Parse_Media($match);
51
52        /** @var helper_plugin_diagrams $helper */
53        $helper = plugin_load('helper', 'diagrams');
54        if (!$data['type'] == 'internalmedia' || !$helper->isDiagramFile(mediaFN($data['src']))) {
55            // This is not a local diagrams file, but some other SVG media file
56            $handler->media($match, $state, $pos);
57            return false;
58        }
59
60        $data['url'] = ml($data['src'], ['cache' => 'nocache'], true, '&');
61        return $data;
62    }
63
64    /**
65     * Render the diagram SVG as <object> instead of <img> to allow links,
66     * except when rendering to a PDF
67     *
68     * @param string $format
69     * @param Doku_Renderer $renderer
70     * @param array $data
71     * @return bool
72     */
73    public function render($format, Doku_Renderer $renderer, $data)
74    {
75        if ($format !== 'xhtml') return false;
76
77        $baseAttributes = [
78            'class' => 'media',
79            'width' => $data['width'] ?: '',
80            'height' => $data['height'] ?: '',
81            'title' => $data['title'] ?: '',
82        ];
83
84
85        if (is_a($renderer, 'renderer_plugin_dw2pdf')) {
86            $imageAttributes = $baseAttributes;
87            $imageAttributes['align'] = $data['align'];
88            $imageAttributes['src'] = $data['url'];
89            $renderer->doc .= '<img ' . buildAttributes($imageAttributes) . '/>';
90        } else {
91            $wrapperAttributes = $baseAttributes;
92            $wrapperAttributes['class'] .= ' diagrams-svg-wrapper media' . $data['align'];
93
94            $imageAttributes = [];
95            $imageAttributes['class'] = 'diagrams-svg';
96            $imageAttributes['data'] = $data['url'];
97            $imageAttributes['data-id'] = cleanID($data['src']);
98            $imageAttributes['type'] = 'image/svg+xml';
99            $imageAttributes['data-pos'] = $data['pos'] ?: '';
100            $imageAttributes['data-len'] = $data['len'] ?: '';
101
102            $image = sprintf('<object %s></object>', buildAttributes($imageAttributes, true));
103            $wrapper = sprintf('<div %s>%s</div>', buildAttributes($wrapperAttributes, true), $image);
104            $renderer->doc .= $wrapper;
105        }
106
107        return true;
108    }
109}
110