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Differences Between: [Versions 310 and 402] [Versions 311 and 402] [Versions 39 and 402] [Versions 400 and 402] [Versions 401 and 402]

   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  use mod_quiz\local\access_rule_base;
  18  use mod_quiz\quiz_settings;
  19  
  20  /**
  21   * A rule for ensuring that the quiz is opened in a popup, with some JavaScript
  22   * to prevent copying and pasting, etc.
  23   *
  24   * @package   quizaccess_securewindow
  25   * @copyright  2009 Tim Hunt
  26   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  27   */
  28  class quizaccess_securewindow extends access_rule_base {
  29      /** @var array options that should be used for opening the secure popup. */
  30      protected static $popupoptions = [
  31          'left' => 0,
  32          'top' => 0,
  33          'fullscreen' => true,
  34          'scrollbars' => true,
  35          'resizeable' => false,
  36          'directories' => false,
  37          'toolbar' => false,
  38          'titlebar' => false,
  39          'location' => false,
  40          'status' => false,
  41          'menubar' => false,
  42      ];
  43  
  44      public static function make(quiz_settings $quizobj, $timenow, $canignoretimelimits) {
  45  
  46          if ($quizobj->get_quiz()->browsersecurity !== 'securewindow') {
  47              return null;
  48          }
  49  
  50          return new self($quizobj, $timenow);
  51      }
  52  
  53      public function attempt_must_be_in_popup() {
  54          return !$this->quizobj->is_preview_user();
  55      }
  56  
  57      public function get_popup_options() {
  58          return self::$popupoptions;
  59      }
  60  
  61      public function setup_attempt_page($page) {
  62          $page->set_popup_notification_allowed(false); // Prevent message notifications.
  63          $page->set_title($this->quizobj->get_course()->shortname . ': ' . $page->title);
  64          $page->set_pagelayout('secure');
  65  
  66          if ($this->quizobj->is_preview_user()) {
  67              return;
  68          }
  69  
  70          $page->add_body_class('quiz-secure-window');
  71          $page->requires->js_init_call('M.mod_quiz.secure_window.init',
  72                  null, false, quiz_get_js_module());
  73      }
  74  
  75      /**
  76       * @return array key => lang string any choices to add to the quiz Browser
  77       *      security settings menu.
  78       */
  79      public static function get_browser_security_choices() {
  80          return ['securewindow' =>
  81                  get_string('popupwithjavascriptsupport', 'quizaccess_securewindow')];
  82      }
  83  }