ExerciseLib::showQuestion()

Complexity

Conditions	244
Paths	> 20000

Size

Total Lines	1734
Code Lines	1004

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

<?php
    public static function showQuestion(
        $exercise,
        $questionId,
        $only_questions = false,
        $origin = false,
        $current_item = '',
        $show_title = true,
        $freeze = false,
        $user_choice = [],
        $show_comment = false,
        $show_answers = false,
        $show_icon = false
    ) {
        $course_id = $exercise->course_id;
        $exerciseId = $exercise->iid;

        if (empty($course_id)) {
            return '';
        }
        $course = $exercise->course;

        // Change false to true in the following line to enable answer hinting
        $debug_mark_answer = $show_answers;
        // Reads question information
        if (!$objQuestionTmp = Question::read($questionId, $course)) {
            // Question not found
            return false;
        }

        $questionRequireAuth = WhispeakAuthPlugin::questionRequireAuthentify($questionId);

        if ($exercise->getFeedbackType() != EXERCISE_FEEDBACK_TYPE_END) {
            $show_comment = false;
        }

        $answerType = $objQuestionTmp->selectType();
        $pictureName = $objQuestionTmp->getPictureFilename();
        $s = '';
        if ($answerType != HOT_SPOT &&
            $answerType != HOT_SPOT_GLOBAL &&
            $answerType != HOT_SPOT_DELINEATION &&
            $answerType != ANNOTATION
        ) {
            // Question is not a hotspot
            if (!$only_questions) {
                $questionDescription = $objQuestionTmp->selectDescription();
                if ($show_title) {
                    if ($exercise->display_category_name) {
                        TestCategory::displayCategoryAndTitle($objQuestionTmp->iid);
                    }
                    $titleToDisplay = Security::remove_XSS($objQuestionTmp->getTitleToDisplay($current_item, $exerciseId));
                    if ($answerType == READING_COMPREHENSION) {
                        // In READING_COMPREHENSION, the title of the question
                        // contains the question itself, which can only be
                        // shown at the end of the given time, so hide for now
                        $titleToDisplay = Display::div(
                            $current_item.'. '.get_lang('ReadingComprehension'),
                            ['class' => 'question_title']
                        );
                    }
                    echo $titleToDisplay;
                }

                if ($questionRequireAuth) {
                    WhispeakAuthPlugin::quizQuestionAuthentify($questionId, $exercise);

                    return false;
                }

                if (!empty($questionDescription) && $answerType != READING_COMPREHENSION) {
                    echo Display::div(
                        $questionDescription,
                        ['class' => 'question_description']
                    );
                }
            }

            if (in_array($answerType, [FREE_ANSWER, ORAL_EXPRESSION, UPLOAD_ANSWER]) && $freeze) {
                return '';
            }

            echo '<div class="question_options">';
            // construction of the Answer object (also gets all answers details)
            $objAnswerTmp = new Answer($questionId, $course_id, $exercise);
            $nbrAnswers = $objAnswerTmp->selectNbrAnswers();
            $quizQuestionOptions = Question::readQuestionOption($questionId, $course_id);
            $selectableOptions = array_map(
                function (array $optionInfo) {
                    return Security::remove_XSS($optionInfo['name']);
                },
                $quizQuestionOptions
            );

            // For "matching" type here, we need something a little bit special
            // because the match between the suggestions and the answers cannot be
            // done easily (suggestions and answers are in the same table), so we
            // have to go through answers first (elems with "correct" value to 0).
            $select_items = [];
            //This will contain the number of answers on the left side. We call them
            // suggestions here, for the sake of comprehensions, while the ones
            // on the right side are called answers
            $num_suggestions = 0;
            switch ($answerType) {
                case MATCHING:
                case MATCHING_GLOBAL:
                case DRAGGABLE:
                case MATCHING_DRAGGABLE_GLOBAL:
                case MATCHING_DRAGGABLE:
                    if ($answerType == DRAGGABLE) {
                        $isVertical = $objQuestionTmp->extra == 'v';
                        $s .= '
                            <div class="row">
                                <div class="col-md-12">
                                    <p class="small">'.get_lang('DraggableQuestionIntro').'</p>
                                    <ul class="exercise-draggable-answer list-unstyled '
                            .($isVertical ? '' : 'list-inline').'" id="question-'.$questionId.'" data-question="'
                            .$questionId.'">
                        ';
                    } else {
                        $s .= '<div id="drag'.$questionId.'_question" class="drag_question">
                               <table class="table table-hover table-striped data_table">';
                    }

                    // Iterate through answers.
                    $x = 1;
                    // Mark letters for each answer.
                    $letter = 'A';
                    $answer_matching = [];
                    $cpt1 = [];
                    for ($answerId = 1; $answerId <= $nbrAnswers; $answerId++) {
                        $answerCorrect = $objAnswerTmp->isCorrect($answerId);
                        $numAnswer = $objAnswerTmp->selectId($answerId);
                        if ($answerCorrect == 0) {
                            // options (A, B, C, ...) that will be put into the list-box
                            // have the "correct" field set to 0 because they are answer
                            $cpt1[$x] = $letter;
                            $answer_matching[$x] = $objAnswerTmp->selectAnswerById($numAnswer);
                            $x++;
                            $letter++;
                        }
                    }

                    $i = 1;
                    $select_items[0]['id'] = 0;
                    $select_items[0]['letter'] = '--';
                    $select_items[0]['answer'] = '';
                    foreach ($answer_matching as $id => $value) {
                        $select_items[$i]['id'] = $value['iid'];
                        $select_items[$i]['letter'] = $cpt1[$id];
                        $select_items[$i]['answer'] = $value['answer'];
                        $i++;
                    }

                    $user_choice_array_position = [];
                    if (!empty($user_choice)) {
                        foreach ($user_choice as $item) {
                            $user_choice_array_position[$item['position']] = $item['answer'];
                        }
                    }
                    $num_suggestions = ($nbrAnswers - $x) + 1;
                    break;
                case FREE_ANSWER:
                    $fck_content = isset($user_choice[0]) && !empty($user_choice[0]['answer']) ? $user_choice[0]['answer'] : null;
                    $form = new FormValidator('free_choice_'.$questionId);
                    $config = [
                        'ToolbarSet' => 'TestFreeAnswer',
                        'id' => 'choice['.$questionId.']',
                    ];
                    $form->addHtmlEditor(
                        'choice['.$questionId.']',
                        null,
                        false,
                        false,
                        $config
                    );
                    $form->setDefaults(["choice[".$questionId."]" => $fck_content]);
                    $s .= $form->returnForm();
                    break;
                case UPLOAD_ANSWER:
                    global $exe_id;
                    $answer = isset($user_choice[0]) && !empty($user_choice[0]['answer']) ? $user_choice[0]['answer'] : null;
                    $path = '/upload_answer/'.$exe_id.'/'.$questionId.'/';
                    $url = api_get_path(WEB_AJAX_PATH).'exercise.ajax.php?'.api_get_cidreq().'&a=upload_answer&curdirpath='.$path;
                    $multipleForm = new FormValidator(
                        'drag_drop',
                        'post',
                        '#',
                        ['enctype' => 'multipart/form-data']
                    );
                    $iconDelete = Display::return_icon('delete.png', get_lang('Delete'), [], ICON_SIZE_SMALL);
                    $multipleForm->addMultipleUpload($url);
                    $s .= '<script>
                        function setRemoveLink(dataContext) {
                            var removeLink = $("<a>", {
                                html: "&nbsp;'.addslashes($iconDelete).'",
                                href: "#",
                                click: function(e) {
                                  e.preventDefault();
                                  dataContext.parent().remove();
                                }
                            });
                            dataContext.append(removeLink);
                        }
                        $(function() {
                            $("#input_file_upload").bind("fileuploaddone", function (e, data) {
                                $.each(data.result.files, function (index, file) {
                                    if (file.name) {
                                        var input = $("<input>", {
                                            type: "hidden",
                                            name: "uploadChoice['.$questionId.'][]",
                                            value: file.name
                                        });
                                        $(data.context.children()[index]).parent().append(input);
                                        // set the remove link
                                        setRemoveLink($(data.context.children()[index]).parent());
                                    }
                                });
                            });
                        });
                    </script>';
                    // Set default values
                    if (!empty($answer)) {
                        $userWebpath = UserManager::getUserPathById(api_get_user_id(), 'web').'my_files'.'/upload_answer/'.$exe_id.'/'.$questionId.'/';
                        $userSyspath = UserManager::getUserPathById(api_get_user_id(), 'system').'my_files'.'/upload_answer/'.$exe_id.'/'.$questionId.'/';
                        $filesNames = explode('|', $answer);
                        $icon = Display::return_icon('file_txt.gif');
                        $default = '';
                        foreach ($filesNames as $fileName) {
                            $fileName = Security::remove_XSS($fileName);
                            if (file_exists($userSyspath.$fileName)) {
                                $default .= '<a target="_blank" class="panel-image" href="'.$userWebpath.$fileName.'"><div class="row"><div class="col-sm-4">'.$icon.'</div><div class="col-sm-5 file_name">'.$fileName.'</div><input type="hidden" name="uploadChoice['.$questionId.'][]" value="'.$fileName.'"><div class="col-sm-3"></div></div></a>';
                            }
                        }
                        $s .= '<script>
                            $(function() {
                                if ($("#files").length > 0) {
                                    $("#files").html("'.addslashes($default).'");
                                    var links = $("#files").children();
                                    links.each(function(index) {
                                        var dataContext = $(links[index]).find(".row");
                                        setRemoveLink(dataContext);
                                    });
                                }
                            });
                        </script>';
                    }
                    $s .= $multipleForm->returnForm();
                    break;
                case ORAL_EXPRESSION:
                    // Add nanog
                    if (api_get_setting('enable_record_audio') === 'true') {
                        //@todo pass this as a parameter
                        global $exercise_stat_info;
                        if (!empty($exercise_stat_info)) {
                            $objQuestionTmp->initFile(
                                api_get_session_id(),
                                api_get_user_id(),
                                $exercise_stat_info['exe_exo_id'],
                                $exercise_stat_info['exe_id']
                            );
                        } else {
                            $objQuestionTmp->initFile(
                                api_get_session_id(),
                                api_get_user_id(),
                                $exerciseId,
                                'temp_exe'
                            );
                        }

                        echo $objQuestionTmp->returnRecorder();
                    }
                    $fileUrl = $objQuestionTmp->getFileUrl();
                    if (isset($fileUrl)) {
                        $s .= '
                            <div class="col-sm-4 col-sm-offset-4">
                                <div class="form-group text-center">
                                    <audio src="'.$fileUrl.'" controls id="record-preview-'.$questionId.'-previous"></audio>
                                </div>
                            </div>
                        ';
                    }
                    $s .= '<script>
                        // The buttons are blocked waiting for the audio file to be uploaded
                        $(document).ajaxStart(function() {
                            $("button").attr("disabled", true);
                            $("button").attr("title", "'.get_lang('WaitingForTheAudioFileToBeUploaded').'");
                        });
                        $(document).ajaxComplete(function() {
                            $("button").attr("disabled", false);
                            $("button").removeAttr("title");
                        });
                    </script>';
                    $form = new FormValidator('free_choice_'.$questionId);
                    $config = ['ToolbarSet' => 'TestFreeAnswer'];

                    $form->addHtml('<div id="'.'hide_description_'.$questionId.'_options" style="display: none;">');
                    $form->addHtmlEditor(
                        "choice[$questionId]",
                        null,
                        false,
                        false,
                        $config
                    );
                    $form->addHtml('</div>');
                    $s .= $form->returnForm();
                    break;
            }

            // Now navigate through the possible answers, using the max number of
            // answers for the question as a limiter
            $lines_count = 1; // a counter for matching-type answers
            if ($answerType == MULTIPLE_ANSWER_TRUE_FALSE ||
                $answerType == MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE
            ) {
                $header = Display::tag('th', get_lang('Options'));
                foreach ($objQuestionTmp->options as $item) {
                    if ($answerType == MULTIPLE_ANSWER_TRUE_FALSE) {
                        if (in_array($item, $objQuestionTmp->options)) {
                            $header .= Display::tag('th', get_lang($item));
                        } else {
                            $header .= Display::tag('th', $item);
                        }
                    } else {
                        $header .= Display::tag('th', $item);
                    }
                }
                if ($show_comment) {
                    $header .= Display::tag('th', get_lang('Feedback'));
                }
                $s .= '<table class="table table-hover table-striped">';
                $s .= Display::tag(
                    'tr',
                    $header,
                    ['style' => 'text-align:left;']
                );
            } elseif ($answerType == MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY) {
                $header = Display::tag('th', get_lang('Options'), ['width' => '50%']);
                echo "
                <script>
                    function RadioValidator(question_id, answer_id)
                    {
                        var ShowAlert = '';
                        var typeRadioB = '';
                        var AllFormElements = window.document.getElementById('exercise_form').elements;

                        for (i = 0; i < AllFormElements.length; i++) {
                            if (AllFormElements[i].type == 'radio') {
                                var ThisRadio = AllFormElements[i].name;
                                var ThisChecked = 'No';
                                var AllRadioOptions = document.getElementsByName(ThisRadio);

                                for (x = 0; x < AllRadioOptions.length; x++) {
                                     if (AllRadioOptions[x].checked && ThisChecked == 'No') {
                                         ThisChecked = 'Yes';
                                         break;
                                     }
                                }

                                var AlreadySearched = ShowAlert.indexOf(ThisRadio);
                                if (ThisChecked == 'No' && AlreadySearched == -1) {
                                    ShowAlert = ShowAlert + ThisRadio;
                                }
                            }
                        }
                        if (ShowAlert != '') {

                        } else {
                            $('.question-validate-btn').removeAttr('disabled');
                        }
                    }

                    function handleRadioRow(event, question_id, answer_id) {
                        var t = event.target;
                        if (t && t.tagName == 'INPUT')
                            return;
                        while (t && t.tagName != 'TD') {
                            t = t.parentElement;
                        }
                        var r = t.getElementsByTagName('INPUT')[0];
                        r.click();
                        RadioValidator(question_id, answer_id);
                    }

                    $(function() {
                        var ShowAlert = '';
                        var typeRadioB = '';
                        var question_id = $('input[name=question_id]').val();
                        var AllFormElements = window.document.getElementById('exercise_form').elements;

                        for (i = 0; i < AllFormElements.length; i++) {
                            if (AllFormElements[i].type == 'radio') {
                                var ThisRadio = AllFormElements[i].name;
                                var ThisChecked = 'No';
                                var AllRadioOptions = document.getElementsByName(ThisRadio);

                                for (x = 0; x < AllRadioOptions.length; x++) {
                                    if (AllRadioOptions[x].checked && ThisChecked == 'No') {
                                        ThisChecked = \"Yes\";
                                        break;
                                    }
                                }

                                var AlreadySearched = ShowAlert.indexOf(ThisRadio);
                                if (ThisChecked == 'No' && AlreadySearched == -1) {
                                    ShowAlert = ShowAlert + ThisRadio;
                                }
                            }
                        }

                        if (ShowAlert != '') {
                             $('.question-validate-btn').attr('disabled', 'disabled');
                        } else {
                            $('.question-validate-btn').removeAttr('disabled');
                        }
                    });
                </script>";

                foreach ($objQuestionTmp->optionsTitle as $item) {
                    if (in_array($item, $objQuestionTmp->optionsTitle)) {
                        $properties = [];
                        if ($item === 'Answers') {
                            $properties['colspan'] = 2;
                            $properties['style'] = 'background-color: #F56B2A; color: #ffffff;';
                        } elseif ($item == 'DegreeOfCertaintyThatMyAnswerIsCorrect') {
                            $properties['colspan'] = 6;
                            $properties['style'] = 'background-color: #330066; color: #ffffff;';
                        }
                        $header .= Display::tag('th', get_lang($item), $properties);
                    } else {
                        $header .= Display::tag('th', $item);
                    }
                }

                if ($show_comment) {
                    $header .= Display::tag('th', get_lang('Feedback'));
                }

                $s .= '<table class="table table-hover table-striped data_table">';
                $s .= Display::tag('tr', $header, ['style' => 'text-align:left;']);

                // ajout de la 2eme ligne d'entête pour true/falss et les pourcentages de certitude
                $header1 = Display::tag('th', '&nbsp;');
                $cpt1 = 0;
                foreach ($objQuestionTmp->options as $item) {
                    $colorBorder1 = $cpt1 == (count($objQuestionTmp->options) - 1)
                        ? '' : 'border-right: solid #FFFFFF 1px;';
                    if ($item === 'True' || $item === 'False') {
                        $header1 .= Display::tag(
                            'th',
                            get_lang($item),
                            ['style' => 'background-color: #F7C9B4; color: black;'.$colorBorder1]
                        );
                    } else {
                        $header1 .= Display::tag(
                            'th',
                            $item,
                            ['style' => 'background-color: #e6e6ff; color: black;padding:5px; '.$colorBorder1]
                        );
                    }
                    $cpt1++;
                }
                if ($show_comment) {
                    $header1 .= Display::tag('th', '&nbsp;');
                }

                $s .= Display::tag('tr', $header1);

                // add explanation
                $header2 = Display::tag('th', '&nbsp;');
                $descriptionList = [
                    get_lang('DegreeOfCertaintyIDeclareMyIgnorance'),
                    get_lang('DegreeOfCertaintyIAmVeryUnsure'),
                    get_lang('DegreeOfCertaintyIAmUnsure'),
                    get_lang('DegreeOfCertaintyIAmPrettySure'),
                    get_lang('DegreeOfCertaintyIAmSure'),
                    get_lang('DegreeOfCertaintyIAmVerySure'),
                ];
                $counter2 = 0;
                foreach ($objQuestionTmp->options as $item) {
                    if ($item === 'True' || $item === 'False') {
                        $header2 .= Display::tag('td',
                            '&nbsp;',
                            ['style' => 'background-color: #F7E1D7; color: black;border-right: solid #FFFFFF 1px;']);
                    } else {
                        $color_border2 = ($counter2 == (count($objQuestionTmp->options) - 1)) ?
                            '' : 'border-right: solid #FFFFFF 1px;font-size:11px;';
                        $header2 .= Display::tag(
                            'td',
                            nl2br($descriptionList[$counter2]),
                            ['style' => 'background-color: #EFEFFC; color: black; width: 110px; text-align:center;
                                vertical-align: top; padding:5px; '.$color_border2]);
                        $counter2++;
                    }
                }
                if ($show_comment) {
                    $header2 .= Display::tag('th', '&nbsp;');
                }
                $s .= Display::tag('tr', $header2);
            }

            if ($show_comment) {
                if (in_array(
                    $answerType,
                    [
                        MULTIPLE_ANSWER,
                        MULTIPLE_ANSWER_COMBINATION,
                        UNIQUE_ANSWER,
                        UNIQUE_ANSWER_IMAGE,
                        UNIQUE_ANSWER_NO_OPTION,
                        GLOBAL_MULTIPLE_ANSWER,
                    ]
                )) {
                    $header = Display::tag('th', get_lang('Options'));
                    if ($exercise->getFeedbackType() == EXERCISE_FEEDBACK_TYPE_END) {
                        $header .= Display::tag('th', get_lang('Feedback'));
                    }
                    $s .= '<table class="table table-hover table-striped">';
                    $s .= Display::tag(
                        'tr',
                        $header,
                        ['style' => 'text-align:left;']
                    );
                }
            }

            $matching_correct_answer = 0;
            $userChoiceList = [];
            if (!empty($user_choice)) {
                foreach ($user_choice as $item) {
                    $userChoiceList[] = $item['answer'];
                }
            }

            $hidingClass = '';
            if ($answerType == READING_COMPREHENSION) {
                $objQuestionTmp->setExerciseType($exercise->selectType());
                $objQuestionTmp->processText($objQuestionTmp->selectDescription());
                $hidingClass = 'hide-reading-answers';
                $s .= Display::div(
                    $objQuestionTmp->selectTitle(),
                    ['class' => 'question_title '.$hidingClass]
                );
            }

            $userStatus = STUDENT;
            // Allows to do a remove_XSS in question of exercise with user status COURSEMANAGER
            // see BT#18242
            if (api_get_configuration_value('question_exercise_html_strict_filtering')) {
                $userStatus = COURSEMANAGERLOWSECURITY;
            }

            for ($answerId = 1; $answerId <= $nbrAnswers; $answerId++) {
                $answer = $objAnswerTmp->selectAnswer($answerId);
                $answerCorrect = $objAnswerTmp->isCorrect($answerId);
                $numAnswer = $objAnswerTmp->selectId($answerId);
                $comment = Security::remove_XSS($objAnswerTmp->selectComment($answerId));
                $attributes = [];

                switch ($answerType) {
                    case UNIQUE_ANSWER:
                    case UNIQUE_ANSWER_NO_OPTION:
                    case UNIQUE_ANSWER_IMAGE:
                    case READING_COMPREHENSION:
                        $input_id = 'choice-'.$questionId.'-'.$answerId;
                        if (isset($user_choice[0]['answer']) && $user_choice[0]['answer'] == $numAnswer) {
                            $attributes = [
                                'id' => $input_id,
                                'checked' => 1,
                                'selected' => 1,
                            ];
                        } else {
                            $attributes = ['id' => $input_id];
                        }

                        if ($debug_mark_answer) {
                            if ($answerCorrect) {
                                $attributes['checked'] = 1;
                                $attributes['selected'] = 1;
                            }
                        }

                        if ($show_comment) {
                            $s .= '<tr><td>';
                        }

                        if ($answerType == UNIQUE_ANSWER_IMAGE) {
                            if ($show_comment) {
                                if (empty($comment)) {
                                    $s .= '<div id="answer'.$questionId.$numAnswer.'"
                                            class="exercise-unique-answer-image" style="text-align: center">';
                                } else {
                                    $s .= '<div id="answer'.$questionId.$numAnswer.'"
                                            class="exercise-unique-answer-image col-xs-6 col-sm-12"
                                            style="text-align: center">';
                                }
                            } else {
                                $s .= '<div id="answer'.$questionId.$numAnswer.'"
                                        class="exercise-unique-answer-image col-xs-6 col-md-3"
                                        style="text-align: center">';
                            }
                        }

                        if ($answerType != UNIQUE_ANSWER_IMAGE) {
                            $answer = Security::remove_XSS($answer, $userStatus);
                        }
                        $s .= Display::input(
                            'hidden',
                            'choice2['.$questionId.']',
                            '0'
                        );

                        $answer_input = null;
                        $attributes['class'] = 'checkradios';
                        if ($answerType == UNIQUE_ANSWER_IMAGE) {
                            $attributes['class'] = '';
                            $attributes['style'] = 'display: none;';
                            $answer = '<div class="thumbnail">'.$answer.'</div>';
                        }

                        $answer_input .= '<label class="radio '.$hidingClass.'">';
                        $answer_input .= Display::input(
                            'radio',
                            'choice['.$questionId.']',
                            $numAnswer,
                            $attributes
                        );
                        $answer_input .= $answer;
                        $answer_input .= '</label>';

                        if ($answerType == UNIQUE_ANSWER_IMAGE) {
                            $answer_input .= "</div>";
                        }

                        if ($show_comment) {
                            $s .= $answer_input;
                            $s .= '</td>';
                            $s .= '<td>';
                            $s .= $comment;
                            $s .= '</td>';
                            $s .= '</tr>';
                        } else {
                            $s .= $answer_input;
                        }
                        break;
                    case MULTIPLE_ANSWER:
                    case MULTIPLE_ANSWER_TRUE_FALSE:
                    case GLOBAL_MULTIPLE_ANSWER:
                    case MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY:
                        $input_id = 'choice-'.$questionId.'-'.$answerId;
                        $answer = Security::remove_XSS($answer, $userStatus);

                        if (in_array($numAnswer, $userChoiceList)) {
                            $attributes = [
                                'id' => $input_id,
                                'checked' => 1,
                                'selected' => 1,
                            ];
                        } else {
                            $attributes = ['id' => $input_id];
                        }

                        if ($debug_mark_answer) {
                            if ($answerCorrect) {
                                $attributes['checked'] = 1;
                                $attributes['selected'] = 1;
                            }
                        }

                        if ($answerType == MULTIPLE_ANSWER || $answerType == GLOBAL_MULTIPLE_ANSWER) {
                            $s .= '<input type="hidden" name="choice2['.$questionId.']" value="0" />';
                            $attributes['class'] = 'checkradios';
                            $answer_input = '<label class="checkbox">';
                            $answer_input .= Display::input(
                                'checkbox',
                                'choice['.$questionId.']['.$numAnswer.']',
                                $numAnswer,
                                $attributes
                            );
                            $answer_input .= $answer;
                            $answer_input .= '</label>';

                            if ($show_comment) {
                                $s .= '<tr><td>';
                                $s .= $answer_input;
                                $s .= '</td>';
                                $s .= '<td>';
                                $s .= $comment;
                                $s .= '</td>';
                                $s .= '</tr>';
                            } else {
                                $s .= $answer_input;
                            }
                        } elseif ($answerType == MULTIPLE_ANSWER_TRUE_FALSE) {
                            $myChoice = [];
                            if (!empty($userChoiceList)) {
                                foreach ($userChoiceList as $item) {
                                    $item = explode(':', $item);
                                    if (!empty($item)) {
                                        $myChoice[$item[0]] = isset($item[1]) ? $item[1] : '';
                                    }
                                }
                            }

                            $s .= '<tr>';
                            $s .= Display::tag('td', $answer);

                            if (!empty($quizQuestionOptions)) {
                                foreach ($quizQuestionOptions as $id => $item) {
                                    if (isset($myChoice[$numAnswer]) && $id == $myChoice[$numAnswer]) {
                                        $attributes = [
                                            'checked' => 1,
                                            'selected' => 1,
                                        ];
                                    } else {
                                        $attributes = [];
                                    }

                                    if ($debug_mark_answer) {
                                        if ($id == $answerCorrect) {
                                            $attributes['checked'] = 1;
                                            $attributes['selected'] = 1;
                                        }
                                    }
                                    $s .= Display::tag(
                                        'td',
                                        Display::input(
                                            'radio',
                                            'choice['.$questionId.']['.$numAnswer.']',
                                            $id,
                                            $attributes
                                        ),
                                        ['style' => '']
                                    );
                                }
                            }

                            if ($show_comment) {
                                $s .= '<td>';
                                $s .= $comment;
                                $s .= '</td>';
                            }
                            $s .= '</tr>';
                        } elseif ($answerType == MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY) {
                            $myChoice = [];
                            if (!empty($userChoiceList)) {
                                foreach ($userChoiceList as $item) {
                                    $item = explode(':', $item);
                                    $myChoice[$item[0]] = $item[1];
                                }
                            }
                            $myChoiceDegreeCertainty = [];
                            if (!empty($userChoiceList)) {
                                foreach ($userChoiceList as $item) {
                                    $item = explode(':', $item);
                                    $myChoiceDegreeCertainty[$item[0]] = $item[2];
                                }
                            }
                            $s .= '<tr>';
                            $s .= Display::tag('td', $answer);

                            if (!empty($quizQuestionOptions)) {
                                foreach ($quizQuestionOptions as $id => $item) {
                                    if (isset($myChoice[$numAnswer]) && $id == $myChoice[$numAnswer]) {
                                        $attributes = ['checked' => 1, 'selected' => 1];
                                    } else {
                                        $attributes = [];
                                    }
                                    $attributes['onChange'] = 'RadioValidator('.$questionId.', '.$numAnswer.')';

                                    // radio button selection
                                    if (isset($myChoiceDegreeCertainty[$numAnswer]) &&
                                        $id == $myChoiceDegreeCertainty[$numAnswer]
                                    ) {
                                        $attributes1 = ['checked' => 1, 'selected' => 1];
                                    } else {
                                        $attributes1 = [];
                                    }

                                    $attributes1['onChange'] = 'RadioValidator('.$questionId.', '.$numAnswer.')';

                                    if ($debug_mark_answer) {
                                        if ($id == $answerCorrect) {
                                            $attributes['checked'] = 1;
                                            $attributes['selected'] = 1;
                                        }
                                    }

                                    if ($item['name'] == 'True' || $item['name'] == 'False') {
                                        $s .= Display::tag('td',
                                            Display::input('radio',
                                                'choice['.$questionId.']['.$numAnswer.']',
                                                $id,
                                                $attributes
                                            ),
                                            ['style' => 'text-align:center; background-color:#F7E1D7;',
                                                'onclick' => 'handleRadioRow(event, '.
                                                    $questionId.', '.
                                                    $numAnswer.')',
                                            ]
                                        );
                                    } else {
                                        $s .= Display::tag('td',
                                            Display::input('radio',
                                                'choiceDegreeCertainty['.$questionId.']['.$numAnswer.']',
                                                $id,
                                                $attributes1
                                            ),
                                            ['style' => 'text-align:center; background-color:#EFEFFC;',
                                                'onclick' => 'handleRadioRow(event, '.
                                                    $questionId.', '.
                                                    $numAnswer.')',
                                            ]
                                        );
                                    }
                                }
                            }

                            if ($show_comment) {
                                $s .= '<td>';
                                $s .= $comment;
                                $s .= '</td>';
                            }
                            $s .= '</tr>';
                        }
                        break;
                    case MULTIPLE_ANSWER_COMBINATION:
                        // multiple answers
                        $input_id = 'choice-'.$questionId.'-'.$answerId;

                        if (in_array($numAnswer, $userChoiceList)) {
                            $attributes = [
                                'id' => $input_id,
                                'checked' => 1,
                                'selected' => 1,
                            ];
                        } else {
                            $attributes = ['id' => $input_id];
                        }

                        if ($debug_mark_answer) {
                            if ($answerCorrect) {
                                $attributes['checked'] = 1;
                                $attributes['selected'] = 1;
                            }
                        }
                        $answer = Security::remove_XSS($answer, $userStatus);
                        $answer_input = '<input type="hidden" name="choice2['.$questionId.']" value="0" />';
                        $answer_input .= '<label class="checkbox">';
                        $answer_input .= Display::input(
                            'checkbox',
                            'choice['.$questionId.']['.$numAnswer.']',
                            1,
                            $attributes
                        );
                        $answer_input .= $answer;
                        $answer_input .= '</label>';

                        if ($show_comment) {
                            $s .= '<tr>';
                            $s .= '<td>';
                            $s .= $answer_input;
                            $s .= '</td>';
                            $s .= '<td>';
                            $s .= $comment;
                            $s .= '</td>';
                            $s .= '</tr>';
                        } else {
                            $s .= $answer_input;
                        }
                        break;
                    case MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE:
                        $s .= '<input type="hidden" name="choice2['.$questionId.']" value="0" />';
                        $myChoice = [];
                        if (!empty($userChoiceList)) {
                            foreach ($userChoiceList as $item) {
                                $item = explode(':', $item);
                                if (isset($item[1]) && isset($item[0])) {
                                    $myChoice[$item[0]] = $item[1];
                                }
                            }
                        }

                        $answer = Security::remove_XSS($answer, $userStatus);
                        $s .= '<tr>';
                        $s .= Display::tag('td', $answer);
                        foreach ($objQuestionTmp->options as $key => $item) {
                            if (isset($myChoice[$numAnswer]) && $key == $myChoice[$numAnswer]) {
                                $attributes = [
                                    'checked' => 1,
                                    'selected' => 1,
                                ];
                            } else {
                                $attributes = [];
                            }

                            if ($debug_mark_answer) {
                                if ($key == $answerCorrect) {
                                    $attributes['checked'] = 1;
                                    $attributes['selected'] = 1;
                                }
                            }
                            $s .= Display::tag(
                                'td',
                                Display::input(
                                    'radio',
                                    'choice['.$questionId.']['.$numAnswer.']',
                                    $key,
                                    $attributes
                                )
                            );
                        }

                        if ($show_comment) {
                            $s .= '<td>';
                            $s .= $comment;
                            $s .= '</td>';
                        }
                        $s .= '</tr>';
                        break;
                    case FILL_IN_BLANKS:
                    case FILL_IN_BLANKS_GLOBAL:
                        // display the question, with field empty, for student to fill it,
                        // or filled to display the answer in the Question preview of the exercise/admin.php page
                        $displayForStudent = true;
                        $listAnswerInfo = FillBlanks::getAnswerInfo($answer);
                        // Correct answers
                        $correctAnswerList = $listAnswerInfo['words'];
                        // Student's answer
                        $studentAnswerList = [];
                        if (isset($user_choice[0]['answer'])) {
                            $arrayStudentAnswer = FillBlanks::getAnswerInfo(
                                $user_choice[0]['answer'],
                                true
                            );
                            $studentAnswerList = $arrayStudentAnswer['student_answer'];
                        }

                        // If the question must be shown with the answer (in page exercise/admin.php)
                        // for teacher preview set the student-answer to the correct answer
                        if ($debug_mark_answer) {
                            $studentAnswerList = $correctAnswerList;
                            $displayForStudent = false;
                        }

                        if (!empty($correctAnswerList) && !empty($studentAnswerList)) {
                            $answer = '';
                            for ($i = 0; $i < count($listAnswerInfo['common_words']) - 1; $i++) {
                                // display the common word
                                $answer .= $listAnswerInfo['common_words'][$i];
                                // display the blank word
                                $correctItem = $listAnswerInfo['words'][$i];
                                if (isset($studentAnswerList[$i])) {
                                    // If student already started this test and answered this question,
                                    // fill the blank with his previous answers
                                    // may be "" if student viewed the question, but did not fill the blanks
                                    $correctItem = $studentAnswerList[$i];
                                }
                                $attributes['style'] = 'width:'.$listAnswerInfo['input_size'][$i].'px';
                                $answer .= FillBlanks::getFillTheBlankHtml(
                                    $current_item,
                                    $questionId,
                                    $correctItem,
                                    $attributes,
                                    $answer,
                                    $listAnswerInfo,
                                    $displayForStudent,
                                    $i
                                );
                            }
                            // display the last common word
                            $answer .= $listAnswerInfo['common_words'][$i];
                        } else {
                            // display empty [input] with the right width for student to fill it
                            $answer = '';
                            for ($i = 0; $i < count($listAnswerInfo['common_words']) - 1; $i++) {
                                // display the common words
                                $answer .= $listAnswerInfo['common_words'][$i];
                                // display the blank word
                                $attributes['style'] = 'width:'.$listAnswerInfo['input_size'][$i].'px';
                                $answer .= FillBlanks::getFillTheBlankHtml(
                                    $current_item,
                                    $questionId,
                                    '',
                                    $attributes,
                                    $answer,
                                    $listAnswerInfo,
                                    $displayForStudent,
                                    $i
                                );
                            }
                            // display the last common word
                            $answer .= $listAnswerInfo['common_words'][$i];
                        }
                        $s .= $answer;
                        break;
                    case CALCULATED_ANSWER:
                        /*
                         * In the CALCULATED_ANSWER test
                         * you mustn't have [ and ] in the textarea
                         * you mustn't have @@ in the textarea
                         * the text to find mustn't be empty or contains only spaces
                         * the text to find mustn't contains HTML tags
                         * the text to find mustn't contains char "
                         */
                        if (null !== $origin) {
                            global $exe_id;
                            $exe_id = (int) $exe_id;
                            $trackAttempts = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ATTEMPT);
                            $sql = "SELECT answer FROM $trackAttempts
                                    WHERE exe_id = $exe_id AND question_id = $questionId";
                            $rsLastAttempt = Database::query($sql);
                            $rowLastAttempt = Database::fetch_array($rsLastAttempt);

                            $answer = null;
                            if (isset($rowLastAttempt['answer'])) {
                                $answer = $rowLastAttempt['answer'];
                                $answerParts = explode(':::', $answer);
                                if (isset($answerParts[1])) {
                                    $answer = $answerParts[0];
                                    $calculatedAnswerList[$questionId] = $answerParts[1];
                                    Session::write('calculatedAnswerId', $calculatedAnswerList);
                                }
                            } else {
                                $calculatedAnswerList = Session::read('calculatedAnswerId');
                                if (!isset($calculatedAnswerList[$questionId])) {
                                    $calculatedAnswerList[$questionId] = mt_rand(1, $nbrAnswers);
                                    Session::write('calculatedAnswerId', $calculatedAnswerList);
                                }
                                $answer = $objAnswerTmp->selectAnswer($calculatedAnswerList[$questionId]);
                            }
                        }

                        [$answer] = explode('@@', $answer);
                        // $correctAnswerList array of array with correct answers 0=> [0=>[\p] 1=>[plop]]
                        api_preg_match_all(
                            '/\[[^]]+\]/',
                            $answer,
                            $correctAnswerList
                        );

                        // get student answer to display it if student go back
                        // to previous calculated answer question in a test
                        if (isset($user_choice[0]['answer'])) {
                            api_preg_match_all(
                                '/\[[^]]+\]/',
                                $answer,
                                $studentAnswerList
                            );
                            $studentAnswerListToClean = $studentAnswerList[0];
                            $studentAnswerList = [];

                            $maxStudents = count($studentAnswerListToClean);
                            for ($i = 0; $i < $maxStudents; $i++) {
                                $answerCorrected = $studentAnswerListToClean[$i];
                                $answerCorrected = api_preg_replace(
                                    '| / <font color="green"><b>.*$|',
                                    '',
                                    $answerCorrected
                                );
                                $answerCorrected = api_preg_replace(
                                    '/^\[/',
                                    '',
                                    $answerCorrected
                                );
                                $answerCorrected = api_preg_replace(
                                    '|^<font color="red"><s>|',
                                    '',
                                    $answerCorrected
                                );
                                $answerCorrected = api_preg_replace(
                                    '|</s></font>$|',
                                    '',
                                    $answerCorrected
                                );
                                $answerCorrected = '['.$answerCorrected.']';
                                $studentAnswerList[] = $answerCorrected;
                            }
                        }

                        // If display preview of answer in test view for exemple,
                        // set the student answer to the correct answers
                        if ($debug_mark_answer) {
                            // contain the rights answers surronded with brackets
                            $studentAnswerList = $correctAnswerList[0];
                        }

                        /*
                        Split the response by bracket
                        tabComments is an array with text surrounding the text to find
                        we add a space before and after the answerQuestion to be sure to
                        have a block of text before and after [xxx] patterns
                        so we have n text to find ([xxx]) and n+1 block of texts before,
                        between and after the text to find
                        */
                        $tabComments = api_preg_split(
                            '/\[[^]]+\]/',
                            ' '.$answer.' '
                        );
                        if (!empty($correctAnswerList) && !empty($studentAnswerList)) {
                            $answer = '';
                            $i = 0;
                            foreach ($studentAnswerList as $studentItem) {
                                // Remove surrounding brackets
                                $studentResponse = api_substr(
                                    $studentItem,
                                    1,
                                    api_strlen($studentItem) - 2
                                );
                                $size = strlen($studentItem);
                                $attributes['class'] = self::detectInputAppropriateClass($size);
                                $answer .= $tabComments[$i].
                                    Display::input(
                                        'text',
                                        "choice[$questionId][]",
                                        $studentResponse,
                                        $attributes
                                    );
                                $i++;
                            }
                            $answer .= $tabComments[$i];
                        } else {
                            // display exercise with empty input fields
                            // every [xxx] are replaced with an empty input field
                            foreach ($correctAnswerList[0] as $item) {
                                $size = strlen($item);
                                $attributes['class'] = self::detectInputAppropriateClass($size);
                                if (EXERCISE_FEEDBACK_TYPE_POPUP == $exercise->getFeedbackType()) {
                                    $attributes['id'] = "question_$questionId";
                                    $attributes['class'] .= ' checkCalculatedQuestionOnEnter ';
                                }

                                $answer = str_replace(
                                    $item,
                                    Display::input(
                                        'text',
                                        "choice[$questionId][]",
                                        '',
                                        $attributes
                                    ),
                                    $answer
                                );
                            }
                        }
                        if (null !== $origin) {
                            $s = $answer;
                            break;
                        } else {
                            $s .= $answer;
                        }
                        break;
                    case MATCHING:
                    case MATCHING_GLOBAL:
                        // matching type, showing suggestions and answers
                        // TODO: replace $answerId by $numAnswer
                        if ($answerCorrect != 0) {
                            // only show elements to be answered (not the contents of
                            // the select boxes, who are correct = 0)
                            $s .= '<tr><td width="45%" valign="top">';
                            $parsed_answer = $answer;
                            // Left part questions
                            $s .= '<p class="indent">'.$lines_count.'.&nbsp;'.$parsed_answer.'</p></td>';
                            // Middle part (matches selects)
                            // Id of select is # question + # of option
                            $s .= '<td width="10%" valign="top" align="center">
                                <div class="select-matching">
                                <select
                                    id="choice_id_'.$current_item.'_'.$lines_count.'"
                                    name="choice['.$questionId.']['.$numAnswer.']">';

                            // fills the list-box
                            foreach ($select_items as $key => $val) {
                                // set $debug_mark_answer to true at function start to
                                // show the correct answer with a suffix '-x'
                                $selected = '';
                                if ($debug_mark_answer) {
                                    if ($val['id'] == $answerCorrect) {
                                        $selected = 'selected="selected"';
                                    }
                                }
                                //$user_choice_array_position
                                if (isset($user_choice_array_position[$numAnswer]) &&
                                    $val['id'] == $user_choice_array_position[$numAnswer]
                                ) {
                                    $selected = 'selected="selected"';
                                }
                                $s .= '<option value="'.$val['id'].'" '.$selected.'>'.$val['letter'].'</option>';
                            }

                            $s .= '</select></div></td><td width="5%" class="separate">&nbsp;</td>';
                            $s .= '<td width="40%" valign="top" >';
                            if (isset($select_items[$lines_count])) {
                                $s .= '<div class="text-right">
                                        <p class="indent">'.
                                    $select_items[$lines_count]['letter'].'.&nbsp; '.
                                    $select_items[$lines_count]['answer'].'
                                        </p>
                                        </div>';
                            } else {
                                $s .= '&nbsp;';
                            }
                            $s .= '</td>';
                            $s .= '</tr>';
                            $lines_count++;
                            // If the left side of the "matching" has been completely
                            // shown but the right side still has values to show...
                            if (($lines_count - 1) == $num_suggestions) {
                                // if it remains answers to shown at the right side
                                while (isset($select_items[$lines_count])) {
                                    $s .= '<tr>
                                      <td colspan="2"></td>
                                      <td valign="top">';
                                    $s .= '<b>'.$select_items[$lines_count]['letter'].'.</b> '.
                                        $select_items[$lines_count]['answer'];
                                    $s .= "</td>
                                </tr>";
                                    $lines_count++;
                                }
                            }
                            $matching_correct_answer++;
                        }
                        break;
                    case DRAGGABLE:
                        if ($answerCorrect) {
                            $windowId = $questionId.'_'.$lines_count;
                            $s .= '<li class="touch-items" id="'.$windowId.'">';
                            $s .= Display::div(
                                $answer,
                                [
                                    'id' => "window_$windowId",
                                    'class' => "window{$questionId}_question_draggable exercise-draggable-answer-option",
                                ]
                            );

                            $draggableSelectOptions = [];
                            $selectedValue = 0;
                            $selectedIndex = 0;
                            if ($user_choice) {
                                foreach ($user_choice as $userChoiceKey => $chosen) {
                                    $userChoiceKey++;
                                    if ($lines_count != $userChoiceKey) {
                                        continue;
                                    }
                                    /*if ($answerCorrect != $chosen['answer']) {
                                        continue;
                                    }*/
                                    $selectedValue = $chosen['answer'];
                                }
                            }
                            foreach ($select_items as $key => $select_item) {
                                $draggableSelectOptions[$select_item['id']] = $select_item['letter'];
                            }

                            foreach ($draggableSelectOptions as $value => $text) {
                                if ($value == $selectedValue) {
                                    break;
                                }
                                $selectedIndex++;
                            }

                            $s .= Display::select(
                                "choice[$questionId][$numAnswer]",
                                $draggableSelectOptions,
                                $selectedValue,
                                [
                                    'id' => "window_{$windowId}_select",
                                    'class' => 'select_option hidden',
                                ],
                                false
                            );

                            if ($selectedValue && $selectedIndex) {
                                $s .= "
                                    <script>
                                        $(function() {
                                            DraggableAnswer.deleteItem(
                                                $('#{$questionId}_$lines_count'),
                                                $('#drop_{$questionId}_{$selectedIndex}')
                                            );
                                        });
                                    </script>
                                ";
                            }

                            if (isset($select_items[$lines_count])) {
                                $s .= Display::div(
                                    Display::tag(
                                        'b',
                                        $select_items[$lines_count]['letter']
                                    ).$select_items[$lines_count]['answer'],
                                    [
                                        'id' => "window_{$windowId}_answer",
                                        'class' => 'hidden',
                                    ]
                                );
                            } else {
                                $s .= '&nbsp;';
                            }

                            $lines_count++;
                            if (($lines_count - 1) == $num_suggestions) {
                                while (isset($select_items[$lines_count])) {
                                    $s .= Display::tag('b', $select_items[$lines_count]['letter']);
                                    $s .= $select_items[$lines_count]['answer'];
                                    $lines_count++;
                                }
                            }

                            $matching_correct_answer++;
                            $s .= '</li>';
                        }
                        break;
                    case MATCHING_DRAGGABLE_GLOBAL:
                    case MATCHING_DRAGGABLE:
                        if ($answerId == 1) {
                            echo $objAnswerTmp->getJs();
                        }
                        if ($answerCorrect != 0) {
                            $windowId = "{$questionId}_{$lines_count}";
                            $s .= <<<HTML
                            <tr>
                                <td width="45%">
                                    <div id="window_{$windowId}"
                                        class="window window_left_question window{$questionId}_question">
                                        <strong>$lines_count.</strong>
                                        $answer
                                    </div>
                                </td>
                                <td width="10%">
HTML;

                            $draggableSelectOptions = [];
                            $selectedValue = 0;
                            $selectedIndex = 0;

                            if ($user_choice) {
                                foreach ($user_choice as $chosen) {
                                    if ($numAnswer == $chosen['position']) {
                                        $selectedValue = $chosen['answer'];
                                        break;
                                    }
                                }
                            }

                            foreach ($select_items as $key => $selectItem) {
                                $draggableSelectOptions[$selectItem['id']] = $selectItem['letter'];
                            }

                            foreach ($draggableSelectOptions as $value => $text) {
                                if ($value == $selectedValue) {
                                    break;
                                }
                                $selectedIndex++;
                            }

                            $s .= Display::select(
                                "choice[$questionId][$numAnswer]",
                                $draggableSelectOptions,
                                $selectedValue,
                                [
                                    'id' => "window_{$windowId}_select",
                                    'class' => 'hidden',
                                ],
                                false
                            );

                            if (!empty($answerCorrect) && !empty($selectedValue)) {
                                // Show connect if is not freeze (question preview)
                                if (!$freeze) {
                                    $s .= "
                                        <script>
                                            $(function() {
                                                $(window).on('load', function() {
                                                    jsPlumb.connect({
                                                        source: 'window_$windowId',
                                                        target: 'window_{$questionId}_{$selectedIndex}_answer',
                                                        endpoint: ['Blank', {radius: 15}],
                                                        anchors: ['RightMiddle', 'LeftMiddle'],
                                                        paintStyle: {strokeStyle: '#8A8888', lineWidth: 8},
                                                        connector: [
                                                            MatchingDraggable.connectorType,
                                                            {curvines: MatchingDraggable.curviness}
                                                        ]
                                                    });
                                                });
                                            });
                                        </script>
                                    ";
                                }
                            }

                            $s .= '</td><td width="45%">';
                            if (isset($select_items[$lines_count])) {
                                $s .= <<<HTML
                                <div id="window_{$windowId}_answer" class="window window_right_question">
                                    <strong>{$select_items[$lines_count]['letter']}.</strong>
                                    {$select_items[$lines_count]['answer']}
                                </div>
HTML;
                            } else {
                                $s .= '&nbsp;';
                            }

                            $s .= '</td></tr>';
                            $lines_count++;
                            if (($lines_count - 1) == $num_suggestions) {
                                while (isset($select_items[$lines_count])) {
                                    $s .= <<<HTML
                                    <tr>
                                        <td colspan="2"></td>
                                        <td>
                                            <strong>{$select_items[$lines_count]['letter']}</strong>
                                            {$select_items[$lines_count]['answer']}
                                        </td>
                                    </tr>
HTML;
                                    $lines_count++;
                                }
                            }
                            $matching_correct_answer++;
                        }
                        break;
                    case MULTIPLE_ANSWER_DROPDOWN:
                        $input_id = "choice-$questionId-$answerId";

                        $s .= Display::input('hidden', "choice2[$questionId]", '0');
                        $s .= '<p>';

                        if ($debug_mark_answer && $answerCorrect) {
                            $s .= "$answerId - {$quizQuestionOptions[$answer]['name']}";
                        } else {
                            $s .= Display::select(
                                "choice[$questionId][$numAnswer]",
                                $selectableOptions,
                                -1,
                                [
                                    'class' => 'form-control selectpicker',
                                    'data-live-search' => 'true',
                                    'data-size' => '3',
                                    'id' => $input_id,
                                ]
                            );
                        }

                        $s .= '</p>';
                        break;
                }
            }

            if ($show_comment) {
                $s .= '</table>';
            } elseif (in_array(
                $answerType,
                [
                    MATCHING,
                    MATCHING_GLOBAL,
                    MATCHING_DRAGGABLE,
                    MATCHING_DRAGGABLE_GLOBAL,
                    UNIQUE_ANSWER_NO_OPTION,
                    MULTIPLE_ANSWER_TRUE_FALSE,
                    MULTIPLE_ANSWER_COMBINATION_TRUE_FALSE,
                    MULTIPLE_ANSWER_TRUE_FALSE_DEGREE_CERTAINTY,
                ]
            )) {
                $s .= '</table>';
            }

            if ($answerType == DRAGGABLE) {
                $isVertical = $objQuestionTmp->extra == 'v';
                $s .= "
                           </ul>
                        </div><!-- .col-md-12 -->
                    </div><!-- .row -->
                ";
                $counterAnswer = 1;
                $s .= $isVertical ? '' : '<div class="row">';
                for ($answerId = 1; $answerId <= $nbrAnswers; $answerId++) {
                    $answerCorrect = $objAnswerTmp->isCorrect($answerId);
                    $windowId = $questionId.'_'.$counterAnswer;
                    if ($answerCorrect) {
                        $s .= $isVertical ? '<div class="row">' : '';
                        $s .= '
                            <div class="'.($isVertical ? 'col-md-12' : 'col-xs-12 col-sm-4 col-md-3 col-lg-2').'">
                                <div class="droppable-item">
                                    <span class="number">'.$counterAnswer.'.</span>
                                    <div id="drop_'.$windowId.'" class="droppable">
                                    </div>
                                 </div>
                            </div>
                        ';
                        $s .= $isVertical ? '</div>' : '';
                        $counterAnswer++;
                    }
                }

                $s .= $isVertical ? '' : '</div>'; // row
//                $s .= '</div>';
            }

            if (in_array($answerType, [MATCHING, MATCHING_GLOBAL, MATCHING_DRAGGABLE, MATCHING_DRAGGABLE_GLOBAL])) {
                $s .= '</div>'; //drag_question
            }

            $s .= '</div>'; //question_options row

            // destruction of the Answer object
            unset($objAnswerTmp);
            // destruction of the Question object
            unset($objQuestionTmp);
            if ('export' == $origin) {
                return $s;
            }
            echo $s;
        } elseif (in_array($answerType, [HOT_SPOT, HOT_SPOT_DELINEATION, HOT_SPOT_GLOBAL])) {
            global $exe_id;
            // Question is a HOT_SPOT
            // Checking document/images visibility
            if (api_is_platform_admin() || api_is_course_admin()) {
                $doc_id = $objQuestionTmp->getPictureId();
                if (is_numeric($doc_id)) {
                    $images_folder_visibility = api_get_item_visibility(
                        $course,
                        'document',
                        $doc_id,
                        api_get_session_id()
                    );
                    if (!$images_folder_visibility) {
                        // Show only to the course/platform admin if the image is set to visibility = false
                        echo Display::return_message(
                            get_lang('ChangeTheVisibilityOfTheCurrentImage'),
                            'warning'
                        );
                    }
                }
            }
            $questionDescription = $objQuestionTmp->selectDescription();

            // Get the answers, make a list
            $objAnswerTmp = new Answer($questionId, $course_id);
            $nbrAnswers = $objAnswerTmp->selectNbrAnswers();

            // get answers of hotpost
            $answers_hotspot = [];
            for ($answerId = 1; $answerId <= $nbrAnswers; $answerId++) {
                $answers = $objAnswerTmp->selectAnswerByAutoId(
                    $objAnswerTmp->selectAutoId($answerId)
                );
                $answers_hotspot[$answers['iid']] = $objAnswerTmp->selectAnswer(
                    $answerId
                );
            }

            $answerList = '';
            $hotspotColor = 0;
            if ($answerType != HOT_SPOT_DELINEATION) {
                $answerList = '
                    <div class="well well-sm">
                        <h5 class="page-header">'.get_lang('HotspotZones').'</h5>
                        <ol>
                ';

                if (!empty($answers_hotspot)) {
                    Session::write("hotspot_ordered$questionId", array_keys($answers_hotspot));
                    foreach ($answers_hotspot as $value) {
                        $answerList .= '<li>';
                        if ($freeze) {
                            $answerList .= '<span class="hotspot-color-'.$hotspotColor
                                .' fa fa-square" aria-hidden="true"></span>'.PHP_EOL;
                        }
                        $answerList .= $value;
                        $answerList .= '</li>';
                        $hotspotColor++;
                    }
                }

                $answerList .= '
                        </ol>
                    </div>
                ';
            }

            if ($freeze) {
                $relPath = api_get_path(WEB_CODE_PATH);
                echo "
                    <div class=\"row\">
                        <div class=\"col-sm-9\">
                            <div id=\"hotspot-preview-$questionId\"></div>
                        </div>
                        <div class=\"col-sm-3\">
                            $answerList
                        </div>
                    </div>
                    <script>
                        new ".(in_array($answerType, [HOT_SPOT, HOT_SPOT_GLOBAL]) ? "HotspotQuestion" : "DelineationQuestion")."({
                            questionId: $questionId,
                            exerciseId: {$exercise->iid},
                            exeId: 0,
                            selector: '#hotspot-preview-$questionId',
                            'for': 'preview',
                            relPath: '$relPath'
                        });
                    </script>
                ";

                return;
            }

            if (!$only_questions) {
                if ($show_title) {
                    if ($exercise->display_category_name) {
                        TestCategory::displayCategoryAndTitle($objQuestionTmp->iid);
                    }
                    echo $objQuestionTmp->getTitleToDisplay($current_item, $exerciseId);
                }

                if ($questionRequireAuth) {
                    WhispeakAuthPlugin::quizQuestionAuthentify($questionId, $exercise);

                    return false;
                }

                //@todo I need to the get the feedback type
                echo <<<HOTSPOT
                    <input type="hidden" name="hidden_hotspot_id" value="$questionId" />
                    <div class="exercise_questions">
                        $questionDescription
                        <div class="row">
HOTSPOT;
            }

            $relPath = api_get_path(WEB_CODE_PATH);
            $s .= "<div class=\"col-sm-8 col-md-9\">
                   <div class=\"hotspot-image\"></div>
                    <script>
                        $(function() {
                            new ".($answerType == HOT_SPOT_DELINEATION ? 'DelineationQuestion' : 'HotspotQuestion')."({
                                questionId: $questionId,
                                exerciseId: {$exercise->iid},
                                exeId: 0,
                                selector: '#question_div_' + $questionId + ' .hotspot-image',
                                'for': 'user',
                                relPath: '$relPath'
                            });
                        });
                    </script>
                </div>
                <div class=\"col-sm-4 col-md-3\">
                    $answerList
                </div>
            ";

            echo <<<HOTSPOT
                            $s
                        </div>
                    </div>
HOTSPOT;
        } elseif ($answerType == ANNOTATION) {
            global $exe_id;
            $relPath = api_get_path(WEB_CODE_PATH);
            if (api_is_platform_admin() || api_is_course_admin()) {
                $docId = DocumentManager::get_document_id($course, '/images/'.$pictureName);
                if ($docId) {
                    $images_folder_visibility = api_get_item_visibility(
                        $course,
                        'document',
                        $docId,
                        api_get_session_id()
                    );

                    if (!$images_folder_visibility) {
                        echo Display::return_message(get_lang('ChangeTheVisibilityOfTheCurrentImage'), 'warning');
                    }
                }

                if ($freeze) {
                    echo Display::img(
                        api_get_path(WEB_COURSE_PATH).$course['path'].'/document/images/'.$pictureName,
                        $objQuestionTmp->selectTitle(),
                        ['width' => '600px']
                    );

                    return 0;
                }
            }

            if (!$only_questions) {
                if ($show_title) {
                    if ($exercise->display_category_name) {
                        TestCategory::displayCategoryAndTitle($objQuestionTmp->iid);
                    }
                    echo $objQuestionTmp->getTitleToDisplay($current_item, $exerciseId);
                }

                if ($questionRequireAuth) {
                    WhispeakAuthPlugin::quizQuestionAuthentify($questionId, $exercise);

                    return false;
                }

                echo '
                    <input type="hidden" name="hidden_hotspot_id" value="'.$questionId.'" />
                    <div class="exercise_questions">
                        '.$objQuestionTmp->selectDescription().'
                        <div class="row">
                            <div class="col-sm-8 col-md-9">
                                <div id="annotation-canvas-'.$questionId.'" class="annotation-canvas center-block">
                                </div>
                            </div>
                            <div class="col-sm-4 col-md-3" id="annotation-toolbar-'.$questionId.'">
                                <div class="btn-toolbar" style="margin-top: 0;">
                                    <div class="btn-group" data-toggle="buttons">
                                        <label class="btn btn-default active"
                                            aria-label="'.get_lang('AddAnnotationPath').'">
                                            <input
                                                type="radio" value="0"
                                                name="'.$questionId.'-options" autocomplete="off" checked>
                                            <span class="fa fa-pencil" aria-hidden="true"></span>
                                        </label>
                                        <label class="btn btn-default"
                                            aria-label="'.get_lang('AddAnnotationText').'">
                                            <input
                                                type="radio" value="1"
                                                name="'.$questionId.'-options" autocomplete="off">
                                            <span class="fa fa-font fa-fw" aria-hidden="true"></span>
                                        </label>
                                    </div>
                                    <div class="btn-group">
                                        <button type="button" class="btn btn-default btn-small"
                                            title="'.get_lang('ClearAnswers').'"
                                            id="btn-reset-'.$questionId.'">
                                            <span class="fa fa-times-rectangle fa-fw" aria-hidden="true"></span>
                                        </button>
                                    </div>
                                    <div class="btn-group">
                                        <button type="button" class="btn btn-default"
                                            title="'.get_lang('Undo').'"