xref: /plugin/bpmnio/syntax/bpmnio.php (revision 242f405678e592a809783731af2e0da14ef544d3) 
1<?php
2
3/**
4 * @license    See LICENSE file
5 * @author     Jaap de Haan <jaap.dehaan@color-of-code.de>
6 */
7
8// See help: https://www.dokuwiki.org/devel:syntax_plugins
9
10// The HTML structure generated by this syntax plugin is:
11//
12// <div class="plugin-bpmnio" id="__(bpmn|dmn)_js_<hash>">
13//   <div class="bpmn_js_data">
14//      ... base64 encoded xml
15//   </div>
16//   <div class="bpmn_js_canvas {$class}">
17//     <div class="bpmn_js_container">... rendered herein</div>
18//   </div>
19// </div>
20
21
22class syntax_plugin_bpmnio_bpmnio extends DokuWiki_Syntax_Plugin
23{
24    public function getPType()
25    {
26        return 'block';
27    }
28
29    public function getType()
30    {
31        return 'protected';
32    }
33
34    public function getSort()
35    {
36        return 0;
37    }
38
39    public function connectTo($mode)
40    {
41        $this->Lexer->addEntryPattern('<bpmnio.*?>(?=.*?</bpmnio>)', $mode, 'plugin_bpmnio_bpmnio');
42    }
43
44    public function postConnect()
45    {
46        $this->Lexer->addExitPattern('</bpmnio>', 'plugin_bpmnio_bpmnio');
47    }
48
49    public function handle($match, $state, $pos, Doku_Handler $handler)
50    {
51        $posStart = $pos;
52        $posEnd = $pos + strlen($match);
53
54        if ($state == DOKU_LEXER_UNMATCHED) {
55            $match = base64_encode($match);
56        }
57        return array($match, $state, $posStart, $posEnd);
58    }
59
60    public function render($mode, Doku_Renderer $renderer, $data)
61    {
62        list($match, $state, $posStart, $posEnd) = $data;
63
64        if (is_a($renderer, 'renderer_plugin_dw2pdf')) {
65            if ($state == DOKU_LEXER_EXIT) {
66                $renderer->doc .= <<<HTML
67                    <div class="plugin-bpmnio">
68                        <a href="https://github.com/Color-Of-Code/dokuwiki-plugin-bpmnio/issues/4">DW2PDF support missing: Help wanted</a>
69                    </div>
70                    HTML;
71            }
72            return true;
73        }
74
75        if ($mode == 'xhtml' || $mode == 'odt') {
76            switch ($state) {
77                case DOKU_LEXER_ENTER:
78                    preg_match('/<bpmnio type="(\w+)">/', $match, $type);
79                    $type = $type[1] ?? 'bpmn';
80                    $bpmnid = uniqid("__{$type}_js_");
81                    $renderer->doc .= <<<HTML
82                        <div class="plugin-bpmnio" id="{$bpmnid}">
83                        HTML;
84                    break;
85
86                case DOKU_LEXER_UNMATCHED:
87                    $renderer->doc .= <<<HTML
88                        <div class="bpmn_js_data">
89                            {$match}
90                        </div>
91                        HTML;
92
93                    $class = $this->_startSectionEdit($renderer, $posStart);
94                    $renderer->doc .= <<<HTML
95                        <div class="bpmn_js_canvas {$class}">
96                            <div class="bpmn_js_container"></div>
97                        </div>
98                        HTML;
99                    $this->_finishSectionEdit($renderer, $posEnd);
100                    break;
101
102                case DOKU_LEXER_EXIT:
103                    $renderer->doc .= '</div>';
104                    break;
105            }
106            return true;
107        }
108        return false;
109    }
110
111    private function _startSectionEdit(Doku_Renderer $renderer, $pos)
112    {
113        $sectionEditData = ['target' => 'plugin_bpmnio'];
114        if (!defined('SEC_EDIT_PATTERN')) {
115            // backwards-compatibility for Frusterick Manners (2017-02-19)
116            $sectionEditData = 'plugin_bpmnio';
117        }
118        return $renderer->startSectionEdit($pos, $sectionEditData);
119    }
120
121    private function _finishSectionEdit(Doku_Renderer $renderer, $pos)
122    {
123        $renderer->finishSectionEdit($pos);
124    }
125}
126