-
Notifications
You must be signed in to change notification settings - Fork 0
/
rule.php
155 lines (136 loc) · 5.1 KB
/
rule.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Implementation of the quizaccess_watermark plugin.
*
* @package quizaccess_watermark
* @copyright 2021 Martin Gauk, TU Berlin <gauk@math.tu-berlin.de>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
use mod_quiz\form\preflight_check_form;
use mod_quiz\local\access_rule_base;
use mod_quiz\quiz_settings;
defined('MOODLE_INTERNAL') || die();
/**
* Implementation of the quizaccess_watermark plugin.
*
* @copyright 2021 Martin Gauk, TU Berlin <gauk@math.tu-berlin.de>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class quizaccess_watermark extends access_rule_base {
/**
* @inheritDoc
* @return self|null the rule, if applicable, else null.
*/
public static function make(quiz_settings $quizobj, $timenow, $canignoretimelimits): ?self {
if ($quizobj->get_quiz()->watermark_enabled ?? false) {
return new self($quizobj, $timenow);
}
return null;
}
/**
* @inheritDoc
* @throws dml_exception
*/
public function setup_attempt_page($page): void {
global $USER;
$settings = get_config('quizaccess_watermark');
$teacher = $this->quizobj->has_capability('mod/quiz:viewreports');
$userhash = quizaccess_watermark\manager::get_user_hash($teacher, $this->quizobj->get_quizid(), $USER->id);
$page->requires->js_call_amd(
'quizaccess_watermark/watermark-lazy',
'init',
[$teacher, $userhash, $settings->background_color, $settings->start_color, $settings->bit_color],
);
}
/**
* @inheritDoc
*/
public function is_preflight_check_required($attemptid): bool {
// Warning only required if the attempt is not already started.
return $attemptid === null;
}
/**
* @inheritDoc
* @throws coding_exception
*/
public function add_preflight_check_form_fields(preflight_check_form $quizform, MoodleQuickForm $mform, $attemptid): void {
$mform->addElement('header', 'watermarkheader', get_string('settings_header', 'quizaccess_watermark'));
$mform->addElement('static', 'watermarkmessage', '', get_string('preflight_text', 'quizaccess_watermark'));
}
/**
* @inheritDoc
* @throws coding_exception
*/
public static function add_settings_form_fields(mod_quiz_mod_form $quizform, MoodleQuickForm $mform): void {
if (!has_capability('quizaccess/watermark:manage_quiz_settings', $quizform->get_context())) {
return;
}
$header = $mform->createElement('header', 'watermark', get_string('settings_header', 'quizaccess_watermark'));
$mform->insertElementBefore($header, 'security');
$option = $mform->createElement(
'selectyesno',
'watermark_enabled',
get_string('settings_watermark_enable', 'quizaccess_watermark'),
);
$mform->setDefault('watermark_enabled', 0);
$mform->insertElementBefore($option, 'security');
}
/**
* @inheritDoc
* @throws coding_exception
* @throws dml_exception
*/
public static function save_settings($quiz): void {
global $DB;
$context = context_module::instance($quiz->coursemodule);
if (!has_capability('quizaccess/watermark:manage_quiz_settings', $context)) {
return;
}
$record = new stdClass();
$record->quizid = $quiz->id;
$record->watermark = $quiz->watermark_enabled ?? false;
if (!$record->watermark) {
$DB->delete_records('quizaccess_watermark', ['quizid' => $quiz->id]);
return;
}
$existing = $DB->get_record('quizaccess_watermark', ['quizid' => $quiz->id]);
if ($existing) {
$record->id = $existing->id;
$DB->update_record('quizaccess_watermark', $record);
} else {
$DB->insert_record('quizaccess_watermark', $record);
}
}
/**
* @inheritDoc
* @throws dml_exception
*/
public static function delete_settings($quiz): void {
global $DB;
$DB->delete_records('quizaccess_watermark', ['quizid' => $quiz->id]);
}
/**
* @inheritDoc
*/
public static function get_settings_sql($quizid): array {
return [
'watermark.watermark AS watermark_enabled',
'LEFT JOIN {quizaccess_watermark} watermark ON watermark.quizid = quiz.id',
[]
];
}
}