xref: /plugin/bpmnio/action/editor.php (revision 696812a400f0348b761c78697df1fa24da37e35b) 
1<?php
2
3/**
4 * @license    See LICENSE file
5 */
6
7// See help:
8// * https://www.dokuwiki.org/devel:section_editor
9// * https://www.dokuwiki.org/devel:releases:refactor2021
10
11use dokuwiki\Form\Form;
12use dokuwiki\Utf8;
13
14class action_plugin_bpmnio_editor extends DokuWiki_Action_Plugin
15{
16    public function register(Doku_Event_Handler $controller)
17    {
18        $controller->register_hook('HTML_SECEDIT_BUTTON', 'BEFORE', $this, 'secedit_button');
19
20        $controller->register_hook('EDIT_FORM_ADDTEXTAREA', 'BEFORE', $this, 'handle_form');
21        $controller->register_hook('HTML_EDIT_FORMSELECTION', 'BEFORE', $this, 'handle_form');
22
23        $controller->register_hook('ACTION_ACT_PREPROCESS', 'BEFORE', $this, 'handle_post');
24    }
25
26    function secedit_button(Doku_Event $event)
27    {
28        if ($this->_shall_ignore($event)) return;
29
30        $event->data['name'] = $this->getLang('edit_diagram');
31    }
32
33    function handle_form(Doku_Event $event)
34    {
35        if ($this->_shall_ignore($event)) return;
36
37        global $TEXT;
38        global $RANGE;
39        global $INPUT;
40
41        if (!$RANGE) {
42            // section editing failed, use default editor instead
43            $event->data['target'] = 'section';
44            return;
45        }
46
47        $event->stopPropagation();
48        $event->preventDefault();
49
50        $form = &$event->data['form'];
51        $data = base64_encode($TEXT);
52
53        $type = 'bpmn';
54        if ($event->data['target'] === 'plugin_bpmnio_dmn')
55            $type = 'dmn';
56
57        $this->_addHidden($form, 'plugin_bpmnio_data', $data);
58        $this->_addHTML($form, <<<HTML
59            <div class="plugin-bpmnio" id="plugin_bpmnio__{$type}_editor">
60                <div class="{$type}_js_data">{$data}</div>
61                <div class="{$type}_js_canvas">
62                    <div class="{$type}_js_container"></div>
63                </div>
64                </div>
65            </div>
66            HTML);
67
68        // used during previews
69        $this->_addHidden($form, 'target', "plugin_bpmnio_{$type}");
70        $this->_addHidden($form, 'range', $RANGE);
71    }
72
73    function handle_post(Doku_Event $event)
74    {
75        global $TEXT;
76        global $INPUT;
77
78        if (!$INPUT->post->has('plugin_bpmnio_data')) return;
79
80        $TEXT = base64_decode($INPUT->post->str('plugin_bpmnio_data'));
81    }
82
83    private function _addHidden($form, $field, $data)
84    {
85        if (is_a($form, Form::class)) { // $event->name is EDIT_FORM_ADDTEXTAREA
86            $form->setHiddenField($field, $data);
87        } else { // $event->name is HTML_EDIT_FORMSELECTION
88            $form->addHidden($field, $data);
89        }
90    }
91
92    private function _addHTML($form, $data)
93    {
94        $form->addHTML($data);
95    }
96
97    private function _shall_ignore(Doku_Event $event)
98    {
99        if ($event->data['target'] === 'plugin_bpmnio_bpmn')
100            return false;
101        if ($event->data['target'] === 'plugin_bpmnio_dmn')
102            return false;
103        return true;
104    }
105}
106