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bdbe3cd268
This ensures that the page reloads if the student uses the Back or Forwards buttons within an attempt. This avoids questions being in a stale state, or the timer showing the wrong time. Thanks to Jake Dallimore and Russell Boyatt for suggestions which lead to this fix.
95 lines
3.0 KiB
PHP
95 lines
3.0 KiB
PHP
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Implementaton of the quizaccess_securewindow plugin.
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*
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* @package quizaccess
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* @subpackage securewindow
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* @copyright 2011 The Open University
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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require_once($CFG->dirroot . '/mod/quiz/accessrule/accessrulebase.php');
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/**
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* A rule for ensuring that the quiz is opened in a popup, with some JavaScript
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* to prevent copying and pasting, etc.
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*
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* @copyright 2009 Tim Hunt
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class quizaccess_securewindow extends quiz_access_rule_base {
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/** @var array options that should be used for opening the secure popup. */
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protected static $popupoptions = array(
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'left' => 0,
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'top' => 0,
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'fullscreen' => true,
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'scrollbars' => true,
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'resizeable' => false,
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'directories' => false,
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'toolbar' => false,
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'titlebar' => false,
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'location' => false,
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'status' => false,
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'menubar' => false,
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);
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public static function make(quiz $quizobj, $timenow, $canignoretimelimits) {
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if ($quizobj->get_quiz()->browsersecurity !== 'securewindow') {
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return null;
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}
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return new self($quizobj, $timenow);
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}
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public function attempt_must_be_in_popup() {
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return !$this->quizobj->is_preview_user();
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}
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public function get_popup_options() {
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return self::$popupoptions;
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}
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public function setup_attempt_page($page) {
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$page->set_popup_notification_allowed(false); // Prevent message notifications.
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$page->set_title($this->quizobj->get_course()->shortname . ': ' . $page->title);
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$page->set_pagelayout('secure');
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if ($this->quizobj->is_preview_user()) {
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return;
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}
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$page->add_body_class('quiz-secure-window');
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$page->requires->js_init_call('M.mod_quiz.secure_window.init',
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null, false, quiz_get_js_module());
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}
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/**
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* @return array key => lang string any choices to add to the quiz Browser
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* security settings menu.
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*/
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public static function get_browser_security_choices() {
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return array('securewindow' =>
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get_string('popupwithjavascriptsupport', 'quizaccess_securewindow'));
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}
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}
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