MDL-31365 Fix for safebrowser and securewindow
[moodle.git] / mod / quiz / accessrule / securewindow / rule.php
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1<?php
2// This file is part of Moodle - http://moodle.org/
3//
4// Moodle is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// Moodle is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
16
17/**
18 * Implementaton of the quizaccess_securewindow plugin.
19 *
20 * @package quizaccess
21 * @subpackage securewindow
22 * @copyright 2011 The Open University
23 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
24 */
25
26
27defined('MOODLE_INTERNAL') || die();
28
29require_once($CFG->dirroot . '/mod/quiz/accessrule/accessrulebase.php');
30
31
32/**
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33 * A rule for ensuring that the quiz is opened in a popup, with some JavaScript
34 * to prevent copying and pasting, etc.
35 *
36 * @copyright 2009 Tim Hunt
37 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
38 */
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39class quizaccess_securewindow extends quiz_access_rule_base {
40 /** @var array options that should be used for opening the secure popup. */
d755b0f5 41 protected static $popupoptions = array(
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42 'left' => 0,
43 'top' => 0,
44 'fullscreen' => true,
45 'scrollbars' => true,
46 'resizeable' => false,
47 'directories' => false,
48 'toolbar' => false,
49 'titlebar' => false,
50 'location' => false,
51 'status' => false,
52 'menubar' => false,
53 );
54
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55 public static function make(quiz $quizobj, $timenow, $canignoretimelimits) {
56
4344c5d5 57 if ($quizobj->get_quiz()->browsersecurity !== 'securewindow') {
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58 return null;
59 }
60
61 return new self($quizobj, $timenow);
62 }
63
d755b0f5 64 public function attempt_must_be_in_popup() {
1d9e1a3c 65 return !$this->quizobj->is_preview_user();
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66 }
67
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68 public function get_popup_options() {
69 return self::$popupoptions;
70 }
71
72 public function setup_attempt_page($page) {
9e83f3d1 73 $page->set_popup_notification_allowed(false); // Prevent message notifications.
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74 $page->set_title($this->quizobj->get_course()->shortname . ': ' . $page->title);
75 $page->set_cacheable(false);
2d0e682d 76 $page->set_pagelayout('secure');
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77
78 if ($this->quizobj->is_preview_user()) {
79 return;
80 }
81
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82 $page->add_body_class('quiz-secure-window');
83 $page->requires->js_init_call('M.mod_quiz.secure_window.init',
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84 null, false, quiz_get_js_module());
85 }
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86
87 /**
88 * @return array key => lang string any choices to add to the quiz Browser
89 * security settings menu.
90 */
91 public static function get_browser_security_choices() {
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92 return array('securewindow' =>
93 get_string('popupwithjavascriptsupport', 'quizaccess_securewindow'));
1d9e1a3c 94 }
a28a5d74 95}