/**
* Initializes quiz javascript and strings for javascript when on the
* quiz view page, or the "quizstart" action
*
* @param \mod_activequiz\activequiz_attempt $attempt
* @param \mod_activequiz\activequiz_session $session
* @throws moodle_exception throws exception when invalid question on the attempt is found
*/
public function init_quiz_js($attempt, $session)
{
global $USER, $CFG;
// include classList javascript to add the class List HTML5 for compatibility
// below IE 10
$this->page->requires->js('/mod/activequiz/js/classList.js');
$this->page->requires->js('/mod/activequiz/js/core.js');
// add window.onload script manually to handle removing the loading mask
echo html_writer::start_tag('script', array('type' => 'text/javascript'));
echo <<<EOD
(function preLoad(){
window.addEventListener('load', function(){activequiz.quiz_page_loaded();}, false);
}());
EOD;
echo html_writer::end_tag('script');
if ($this->rtq->is_instructor()) {
$this->page->requires->js('/mod/activequiz/js/instructor.js');
} else {
$this->page->requires->js('/mod/activequiz/js/student.js');
}
// next set up a class to pass to js for js info
$jsinfo = new stdClass();
$jsinfo->sesskey = sesskey();
$jsinfo->siteroot = $CFG->wwwroot;
$jsinfo->rtqid = $this->rtq->getRTQ()->id;
$jsinfo->sessionid = $session->get_session()->id;
$jsinfo->attemptid = $attempt->id;
$jsinfo->slots = $attempt->getSlots();
$jsinfo->isinstructor = $this->rtq->is_instructor() ? 'true' : 'false';
// manually create the questions stdClass as we can't support JsonSerializable yet
$questions = array();
foreach ($attempt->get_questions() as $q) {
/** @var \mod_activequiz\activequiz_question $q */
$question = new stdClass();
$question->id = $q->getId();
$question->questiontime = $q->getQuestionTime();
$question->tries = $q->getTries();
$question->question = $q->getQuestion();
$question->slot = $attempt->get_question_slot($q);
// if the slot is false, throw exception for invalid question on quiz attempt
if ($question->slot === false) {
$a = new stdClass();
$a->questionname = $q->getQuestion()->name;
throw new moodle_exception('invalidquestionattempt', 'mod_activequiz', '', $a, 'invalid slot when building questions array on quiz renderer');
}
$questions[$question->slot] = $question;
}
$jsinfo->questions = $questions;
// resuming quiz feature
// this will check if the session has started already and print out
$jsinfo->resumequiz = 'false';
if ($session->get_session()->status != 'notrunning') {
$sessionstatus = $session->get_session()->status;
$currentquestion = $session->get_session()->currentquestion;
$nextstarttime = $session->get_session()->nextstarttime;
if ($sessionstatus == 'running' && !empty($currentquestion)) {
// we're in a currently running question
$jsinfo->resumequiz = 'true';
$jsinfo->resumequizstatus = $sessionstatus;
$jsinfo->resumequizcurrentquestion = $currentquestion;
$nextQuestion = $this->rtq->get_questionmanager()->get_question_with_slot($session->get_session()->currentqnum, $attempt);
if ($nextstarttime > time()) {
// we're wating for question
$jsinfo->resumequizaction = 'waitforquestion';
$jsinfo->resumequizdelay = $session->get_session()->nextstarttime - time();
$jsinfo->resumequizquestiontime = $nextQuestion->getQuestionTime();
} else {
$jsinfo->resumequizaction = 'startquestion';
// how much time has elapsed since start time
// first check if the question has a time limit
if ($nextQuestion->getNoTime()) {
$jsinfo->resumequizquestiontime = 0;
} else {
// otherwise figure out how much time is left
$timeelapsed = time() - $nextstarttime;
$timeLeft = $nextQuestion->getQuestionTime() - $timeelapsed;
$jsinfo->resumequizquestiontime = $timeLeft;
}
}
} else {
if ($sessionstatus == 'reviewing' || $sessionstatus == 'endquestion') {
// if we're reviewing, resume with quiz info of reviewing and just let
// set interval capture next question start time
$jsinfo->resumequiz = 'true';
$jsinfo->resumequizaction = 'reviewing';
$jsinfo->resumequizstatus = $sessionstatus;
$jsinfo->resumequizcurrentquestion = $currentquestion;
if ($attempt->lastquestion) {
$jsinfo->lastquestion = 'true';
} else {
$jsinfo->lastquestion = 'false';
}
}
}
}
// print jsinfo to javascript
echo html_writer::start_tag('script', array('type' => 'text/javascript'));
echo "rtqinitinfo = " . json_encode($jsinfo);
echo html_writer::end_tag('script');
// add strings for js
$this->page->requires->strings_for_js(array('waitforquestion', 'gatheringresults', 'feedbackintro', 'nofeedback', 'closingsession', 'sessionclosed', 'trycount', 'timertext', 'waitforrevewingend', 'show_correct_answer', 'hide_correct_answer', 'hidestudentresponses', 'showstudentresponses', 'hidenotresponded', 'shownotresponded'), 'activequiz');
$this->page->requires->strings_for_js(array('seconds'), 'moodle');
// finally allow question modifiers to add their own css/js
$this->rtq->call_question_modifiers('add_js', null);
}
