xref: /plugin/bpmnio/syntax/bpmnio.php (revision 94260a7f040ace3ab386a435f5314f2f3ebe529a) 
1fc2e1131SJaap de Haan<?php
2fc2e1131SJaap de Haan
3a494ddccSgithub-actions[bot]use dokuwiki\Extension\SyntaxPlugin;
44c812427SJaap de Haanuse dokuwiki\File\MediaResolver;
5a494ddccSgithub-actions[bot]
6fc2e1131SJaap de Haan/**
7fc2e1131SJaap de Haan * @license    See LICENSE file
8fc2e1131SJaap de Haan */
9fc2e1131SJaap de Haan// See help: https://www.dokuwiki.org/devel:syntax_plugins
10242f4056SJaap de Haan// The HTML structure generated by this syntax plugin is:
11242f4056SJaap de Haan//
12242f4056SJaap de Haan// <div class="plugin-bpmnio" id="__(bpmn|dmn)_js_<hash>">
13242f4056SJaap de Haan//   <div class="bpmn_js_data">
14242f4056SJaap de Haan//      ... base64 encoded xml
15242f4056SJaap de Haan//   </div>
16242f4056SJaap de Haan//   <div class="bpmn_js_canvas {$class}">
17242f4056SJaap de Haan//     <div class="bpmn_js_container">... rendered herein</div>
18242f4056SJaap de Haan//   </div>
19242f4056SJaap de Haan// </div>
20a494ddccSgithub-actions[bot]class syntax_plugin_bpmnio_bpmnio extends SyntaxPlugin
21fc2e1131SJaap de Haan{
224c812427SJaap de Haan    protected string $type = ''; // 'bpmn' or 'dmn'
234c812427SJaap de Haan    protected string $src = ''; // media file
24*94260a7fSJaap de Haan    protected string $zoom = ''; // optional scaling factor
25f0ae282cSJaap de Haan
269ff8d41cSJaap de Haan    public function getPType(): string
27fc2e1131SJaap de Haan    {
28fc2e1131SJaap de Haan        return 'block';
29fc2e1131SJaap de Haan    }
30fc2e1131SJaap de Haan
319ff8d41cSJaap de Haan    public function getType(): string
32fc2e1131SJaap de Haan    {
33fc2e1131SJaap de Haan        return 'protected';
34fc2e1131SJaap de Haan    }
35fc2e1131SJaap de Haan
369ff8d41cSJaap de Haan    public function getSort(): int
37fc2e1131SJaap de Haan    {
38fc2e1131SJaap de Haan        return 0;
39fc2e1131SJaap de Haan    }
40fc2e1131SJaap de Haan
419ff8d41cSJaap de Haan    public function connectTo($mode): void
42fc2e1131SJaap de Haan    {
43fc2e1131SJaap de Haan        $this->Lexer->addEntryPattern('<bpmnio.*?>(?=.*?</bpmnio>)', $mode, 'plugin_bpmnio_bpmnio');
44fc2e1131SJaap de Haan    }
45fc2e1131SJaap de Haan
469ff8d41cSJaap de Haan    public function postConnect(): void
47fc2e1131SJaap de Haan    {
48fc2e1131SJaap de Haan        $this->Lexer->addExitPattern('</bpmnio>', 'plugin_bpmnio_bpmnio');
49fc2e1131SJaap de Haan    }
50fc2e1131SJaap de Haan
519ff8d41cSJaap de Haan    public function handle($match, $state, $pos, Doku_Handler $handler): array
52fc2e1131SJaap de Haan    {
53f0ae282cSJaap de Haan        switch ($state) {
54f0ae282cSJaap de Haan            case DOKU_LEXER_ENTER:
554c812427SJaap de Haan                $matched = [];
564c812427SJaap de Haan                preg_match('/<bpmnio\s+([^>]+)>/', $match, $matched);
574c812427SJaap de Haan
584c812427SJaap de Haan                $attrs = [];
594c812427SJaap de Haan                if (!empty($matched[1])) {
604c812427SJaap de Haan                    $attrs = $this->buildAttributes($matched[1]);
614c812427SJaap de Haan                }
624c812427SJaap de Haan
634c812427SJaap de Haan                $this->type = $attrs['type'] ?? 'bpmn';
644c812427SJaap de Haan                $this->src = $attrs['src'] ?? '';
65*94260a7fSJaap de Haan                $this->zoom = $this->normalizeZoom($attrs['zoom'] ?? null) ?? '';
664c812427SJaap de Haan
67*94260a7fSJaap de Haan                return [$state, $this->type, '', $pos, '', false, $this->zoom];
68f0ae282cSJaap de Haan
69f0ae282cSJaap de Haan            case DOKU_LEXER_UNMATCHED:
70c4f02a6eSJaap de Haan                $posStart = $pos;
71c4f02a6eSJaap de Haan                $posEnd = $pos + strlen($match);
724c812427SJaap de Haan
734c812427SJaap de Haan                $inline = empty($this->src);
744c812427SJaap de Haan                if (!$inline) {
754c812427SJaap de Haan                    $match = $this->getMedia($this->src);
764c812427SJaap de Haan                }
77*94260a7fSJaap de Haan                return [$state, $this->type, base64_encode($match), $posStart, $posEnd, $inline, $this->zoom];
78f0ae282cSJaap de Haan
79f0ae282cSJaap de Haan            case DOKU_LEXER_EXIT:
80ae85f1faSJaap de Haan                $this->type = '';
814c812427SJaap de Haan                $this->src = '';
82*94260a7fSJaap de Haan                $this->zoom = '';
83*94260a7fSJaap de Haan                return [$state, '', '', '', '', '', false, ''];
84fc2e1131SJaap de Haan        }
85a494ddccSgithub-actions[bot]        return [];
86fc2e1131SJaap de Haan    }
87fc2e1131SJaap de Haan
884c812427SJaap de Haan    private function buildAttributes($string)
894c812427SJaap de Haan    {
904c812427SJaap de Haan        $attrs = [];
914c812427SJaap de Haan        preg_match_all('/(\w+)=["\'](.*?)["\']/', $string, $matches, PREG_SET_ORDER);
924c812427SJaap de Haan        foreach ($matches as $match) {
934c812427SJaap de Haan            $attrs[$match[1]] = $match[2];
944c812427SJaap de Haan        }
954c812427SJaap de Haan        return $attrs;
964c812427SJaap de Haan    }
974c812427SJaap de Haan
98*94260a7fSJaap de Haan    private function normalizeZoom($zoom): ?string
99*94260a7fSJaap de Haan    {
100*94260a7fSJaap de Haan        if ($zoom === null || $zoom === '') {
101*94260a7fSJaap de Haan            return null;
102*94260a7fSJaap de Haan        }
103*94260a7fSJaap de Haan
104*94260a7fSJaap de Haan        if (!is_numeric($zoom)) {
105*94260a7fSJaap de Haan            return null;
106*94260a7fSJaap de Haan        }
107*94260a7fSJaap de Haan
108*94260a7fSJaap de Haan        $zoom = (float) $zoom;
109*94260a7fSJaap de Haan        if ($zoom <= 0) {
110*94260a7fSJaap de Haan            return null;
111*94260a7fSJaap de Haan        }
112*94260a7fSJaap de Haan
113*94260a7fSJaap de Haan        return rtrim(rtrim(number_format($zoom, 4, '.', ''), '0'), '.');
114*94260a7fSJaap de Haan    }
115*94260a7fSJaap de Haan
1164c812427SJaap de Haan    private function getMedia($src)
1174c812427SJaap de Haan    {
1184c812427SJaap de Haan        global $ID;
1194c812427SJaap de Haan
1204c812427SJaap de Haan        $id = (new MediaResolver($ID))->resolveId($src);
1214c812427SJaap de Haan        if (auth_quickaclcheck($id) < AUTH_READ) {
1224c812427SJaap de Haan            return "Error: Access denied for file $src";
1234c812427SJaap de Haan        }
1244c812427SJaap de Haan
1254c812427SJaap de Haan        $file = mediaFN($id);
1264c812427SJaap de Haan        if (!file_exists($file) || !is_readable($file)) {
1274c812427SJaap de Haan            return "Error: Cannot load file $src";
1284c812427SJaap de Haan        }
1294c812427SJaap de Haan
1304c812427SJaap de Haan        return file_get_contents($file);
1314c812427SJaap de Haan    }
1324c812427SJaap de Haan
1339ff8d41cSJaap de Haan    public function render($mode, Doku_Renderer $renderer, $data): bool
134fc2e1131SJaap de Haan    {
135*94260a7fSJaap de Haan        [$state, $type, $match, $posStart, $posEnd, $inline, $zoom] = array_pad($data, 7, '');
13634515d89SJaap de Haan
13734515d89SJaap de Haan        if (is_a($renderer, 'renderer_plugin_dw2pdf')) {
13834515d89SJaap de Haan            if ($state == DOKU_LEXER_EXIT) {
13934515d89SJaap de Haan                $renderer->doc .= <<<HTML
14034515d89SJaap de Haan                    <div class="plugin-bpmnio">
141962d7b81SJaap de Haan                        <a href="https://github.com/Color-Of-Code/dokuwiki-plugin-bpmnio/issues/4">
142962d7b81SJaap de Haan                            DW2PDF support missing: Help wanted
143962d7b81SJaap de Haan                        </a>
14434515d89SJaap de Haan                    </div>
14534515d89SJaap de Haan                    HTML;
14634515d89SJaap de Haan            }
14734515d89SJaap de Haan            return true;
14834515d89SJaap de Haan        }
14934515d89SJaap de Haan
15034515d89SJaap de Haan        if ($mode == 'xhtml' || $mode == 'odt') {
151fc2e1131SJaap de Haan            switch ($state) {
152fc2e1131SJaap de Haan                case DOKU_LEXER_ENTER:
153ae85f1faSJaap de Haan                    $bpmnid = "__{$type}_js_{$posStart}";
1548428abe8SJaap de Haan                    $renderer->doc .= <<<HTML
1558428abe8SJaap de Haan                        <div class="plugin-bpmnio" id="{$bpmnid}">
1568428abe8SJaap de Haan                        HTML;
157fc2e1131SJaap de Haan                    break;
158fc2e1131SJaap de Haan
159fc2e1131SJaap de Haan                case DOKU_LEXER_UNMATCHED:
1608428abe8SJaap de Haan                    $renderer->doc .= <<<HTML
161f0ae282cSJaap de Haan                        <div class="{$type}_js_data">
162c4f02a6eSJaap de Haan                            {$match}
1638428abe8SJaap de Haan                        </div>
1648428abe8SJaap de Haan                        HTML;
1654c812427SJaap de Haan                    if ($inline) {
166962d7b81SJaap de Haan                        $target = "plugin_bpmnio_{$type}";
167962d7b81SJaap de Haan                        $sectionEditData = ['target' => $target];
168962d7b81SJaap de Haan                        $class = $renderer->startSectionEdit($posStart, $sectionEditData);
1694c812427SJaap de Haan                    } else {
1704c812427SJaap de Haan                        $class = '';
1714c812427SJaap de Haan                    }
172*94260a7fSJaap de Haan                    $zoomAttr = $zoom !== '' ? " data-zoom=\"{$zoom}\"" : '';
173c4f02a6eSJaap de Haan                    $renderer->doc .= <<<HTML
174f0ae282cSJaap de Haan                        <div class="{$type}_js_canvas {$class}">
175*94260a7fSJaap de Haan                            <div class="{$type}_js_container"{$zoomAttr}></div>
176c4f02a6eSJaap de Haan                        </div>
177c4f02a6eSJaap de Haan                        HTML;
1784c812427SJaap de Haan                    if ($inline) {
179962d7b81SJaap de Haan                        $renderer->finishSectionEdit($posEnd);
1804c812427SJaap de Haan                    }
181c4f02a6eSJaap de Haan                    break;
182c4f02a6eSJaap de Haan
183c4f02a6eSJaap de Haan                case DOKU_LEXER_EXIT:
184f0ae282cSJaap de Haan                    $renderer->doc .= <<<HTML
185f0ae282cSJaap de Haan                        </div>
186f0ae282cSJaap de Haan                        HTML;
187fc2e1131SJaap de Haan                    break;
188fc2e1131SJaap de Haan            }
189fc2e1131SJaap de Haan            return true;
190fc2e1131SJaap de Haan        }
191fc2e1131SJaap de Haan        return false;
192fc2e1131SJaap de Haan    }
193fc2e1131SJaap de Haan}
194