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Mini Shell
Mini Shell
<?php
/* For licensing terms, see /license.txt */
use Chamilo\CourseBundle\Entity\CQuiz;
use Symfony\Component\Serializer\Encoder\JsonEncoder;
use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
use Symfony\Component\Serializer\Serializer;
/**
* This class represents an entire exercise to be exported in SCORM.
* It will be represented by a single <section> containing several <item>.
*
* Some properties cannot be exported, as SCORM does not support them :
* - type (one page or multiple pages)
* - start_date and end_date
* - max_attempts
* - show_answer
* - anonymous_attempts
*
* @author Julio Montoya
* @author Amand Tihon <amand@alrj.org>
*/
class ScormExercise
{
public $exercise;
public $standalone;
/**
* ScormExercise constructor.
*
* @param Exercise $exe
* @param bool $standalone
*/
public function __construct($exe, $standalone)
{
$this->exercise = $exe;
$this->standalone = $standalone;
}
/**
* Start the XML flow.
*
* This opens the <item> block, with correct attributes.
*/
public function startPage()
{
$charset = 'UTF-8';
return '<?xml version="1.0" encoding="'.$charset.'" standalone="no"?><html>';
}
/**
* End the XML flow, closing the </item> tag.
*/
public function end_page()
{
return '</html>';
}
/**
* Start document header.
*/
public function start_header()
{
return '<head>';
}
/**
* Common JS functions.
*/
public function common_js()
{
$js = file_get_contents(api_get_path(SYS_CODE_PATH).'exercise/export/scorm/common.js');
return $js."\n";
}
/**
* End the itemBody part.
*/
public function end_js()
{
return '</script>';
}
/**
* Start the itemBody.
*/
public function start_body()
{
return '<body>'.
'<h1>'.$this->exercise->selectTitle().'</h1><p>'.$this->exercise->selectDescription().'</p>'.
'<form id="chamilo_scorm_form" method="post" action="">'.
'<table width="100%">';
}
/**
* End the itemBody part.
*/
public function end_body()
{
$button = '<input
id="chamilo_scorm_submit"
class="btn btn-primary"
type="button"
name="chamilo_scorm_submit"
value="OK" />';
return '</table><br />'.$button.'</form></body>';
}
/**
* Export the question as a SCORM Item.
*
* This is a default behaviour, some classes may want to override this.
*
* @return string string, the XML flow for an Item
*/
public function export()
{
global $charset;
/*$head = '';
if ($this->standalone) {
$head = '<?xml version = "1.0" encoding = "'.$charset.'" standalone = "no"?>'."\n"
.'<!DOCTYPE questestinterop SYSTEM "ims_qtiasiv2p1.dtd">'."\n";
}*/
list($js, $html) = $this->exportQuestions();
return $this->startPage()
.$this->start_header()
.$this->css()
.$this->globalAssets()
.$this->start_js()
.$this->common_js()
.$js
.$this->end_js()
.$this->end_header()
.$this->start_body()
.$html
.$this->end_body()
.$this->end_page();
}
/**
* Export the questions, as a succession of <items>.
*
* @author Amand Tihon <amand@alrj.org>
*/
public function exportQuestions()
{
$js = $html = '';
$encoders = [new JsonEncoder()];
$normalizers = [new ObjectNormalizer()];
$em = Database::getManager();
// Export cquiz data
/** @var CQuiz $exercise */
$exercise = $em->find('ChamiloCourseBundle:CQuiz', $this->exercise->iid);
$exercise->setDescription('');
$exercise->setTextWhenFinished('');
$serializer = new Serializer($normalizers, $encoders);
$jsonContent = $serializer->serialize($exercise, 'json');
$js .= "var exerciseInfo = JSON.parse('".$jsonContent."');\n";
$counter = 0;
$scormQuestion = new ScormQuestion();
foreach ($this->exercise->selectQuestionList() as $q) {
list($jstmp, $htmltmp) = $scormQuestion->exportQuestionToScorm($q, $counter);
$js .= $jstmp."\n";
$html .= $htmltmp."\n";
$counter++;
}
return [$js, $html];
}
/**
* Print CSS inclusion.
*/
private function css()
{
return '';
}
/**
* End document header.
*/
private function end_header()
{
return '</head>';
}
/**
* Start the itemBody.
*/
private function start_js()
{
return '<script>';
}
/**
* @return string
*/
private function globalAssets()
{
$assets = '<script type="text/javascript" src="assets/jquery/jquery.min.js"></script>'."\n";
$assets .= '<script type="text/javascript" src="assets/api_wrapper.js"></script>'."\n";
$assets .= '<link href="assets/bootstrap/bootstrap.min.css" rel="stylesheet" media="screen" type="text/css" />';
return $assets;
}
}
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