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448 lines
14 KiB
448 lines
14 KiB
<?php
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/*
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DOKEOS - elearning and course management software
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For a full list of contributors, see documentation/credits.html
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See "documentation/licence.html" more details.
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Contact:
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Dokeos
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Rue des Palais 44 Paleizenstraat
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B-1030 Brussels - Belgium
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Tel. +32 (2) 211 34 56
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*/
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/**
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* Exercise library
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* shows a question and its answers
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* @package dokeos.exercise
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* @author Olivier Brouckaert <oli.brouckaert@skynet.be>
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* @version $Id: exercise.lib.php 13177 2007-09-21 14:50:21Z elixir_inter $
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*/
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require("../inc/lib/fckeditor/fckeditor.php") ;
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function showQuestion($questionId, $onlyAnswers=false, $origin=false)
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{
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// reads question informations
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if(!$objQuestionTmp = Question::read($questionId))
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{
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// question not found
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return false;
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}
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$answerType=$objQuestionTmp->selectType();
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$pictureName=$objQuestionTmp->selectPicture();
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if ($answerType != HOT_SPOT) // Question is not of type hotspot
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{
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if(!$onlyAnswers)
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{
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$questionName=$objQuestionTmp->selectTitle();
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$questionDescription=$objQuestionTmp->selectDescription();
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$s="<tr>
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<td valign='top' colspan='2'> ";
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$questionName=api_parse_tex($questionName);
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$s.=$questionName;
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$s.="</td>
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</tr>
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<tr>
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<td valign='top' colspan='2'>
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<i>";
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$questionDescription=api_parse_tex($questionDescription);
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$s.=$questionDescription;
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$s.="</i>
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</td>
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</tr>";
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if(!empty($pictureName))
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{
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$s.="
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<tr>
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<td align='center' colspan='2'><img src='../document/download.php?doc_url=%2Fimages%2F'".$pictureName."' border='0'></td>
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</tr>";
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}
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} // end if(!$onlyAnswers)
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// construction of the Answer object
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$objAnswerTmp=new Answer($questionId);
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$nbrAnswers=$objAnswerTmp->selectNbrAnswers();
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// only used for the answer type "Matching"
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if($answerType == MATCHING)
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{
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$cpt1='A';
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$cpt2=1;
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$Select=array();
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}
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elseif($answerType == FREE_ANSWER)
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{
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#$comment = $objAnswerTmp->selectComment(1);
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//
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$upload_path = api_get_path(REL_COURSE_PATH).$_SESSION['_course']['path'].'/document/';
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$oFCKeditor = new FCKeditor("choice[".$questionId."]") ;
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$oFCKeditor->BasePath = api_get_path(WEB_PATH) . 'main/inc/lib/fckeditor/' ;
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$oFCKeditor->Config['CustomConfigurationsPath'] = api_get_path(REL_PATH)."main/inc/lib/fckeditor/myconfig.js";
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$oFCKeditor->Config['IMUploadPath'] = 'upload/test/';
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$oFCKeditor->ToolbarSet = "Test";
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$oFCKeditor->Width = '80%';
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$oFCKeditor->Height = '300';
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$oFCKeditor->Value = '' ;
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$TBL_LANGUAGES = Database::get_main_table(TABLE_MAIN_LANGUAGE);
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$sql="SELECT isocode FROM ".$TBL_LANGUAGES." WHERE english_name='".$_SESSION["_course"]["language"]."'";
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$result_sql=api_sql_query($sql);
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$isocode_language=mysql_result($result_sql,0,0);
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$oFCKeditor->Config['DefaultLanguage'] = $isocode_language;
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$s .= "<tr><td colspan='2'>".$oFCKeditor->CreateHtml()."</td></tr>";
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//$s.="<tr><td colspan='2'><textarea cols='80' rows='10' name='choice[".$questionId."]'>$answer</textarea></td></tr>";
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}
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for($answerId=1;$answerId <= $nbrAnswers;$answerId++)
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{
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$answer=$objAnswerTmp->selectAnswer($answerId);
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$answerCorrect=$objAnswerTmp->isCorrect($answerId);
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if($answerType == FILL_IN_BLANKS)
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{
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// splits text and weightings that are joined with the character '::'
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list($answer)=explode('::',$answer);
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// because [] is parsed here we follow this procedure:
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// 1. find everything between the [tex] and [/tex] tags
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$startlocations=strpos($answer,'[tex]');
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$endlocations=strpos($answer,'[/tex]');
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if($startlocations !== false && $endlocations !== false)
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{
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$texstring=substr($answer,$startlocations,$endlocations-$startlocations+6);
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// 2. replace this by {texcode}
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$answer=str_replace($texstring,'{texcode}',$answer);
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}
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// 3. do the normal matching parsing
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// replaces [blank] by an input field
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$answer=ereg_replace('\[[^]]+\]','<input type="text" name="choice['.$questionId.'][]" size="10">',nl2br($answer));
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// 4. replace the {texcode by the api_pare_tex parsed code}
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$texstring = api_parse_tex($texstring);
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$answer=str_replace("{texcode}",$texstring,$answer);
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}
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// unique answer
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if($answerType == UNIQUE_ANSWER)
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{
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$s.="
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<tr>
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<td align='center'>
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<input class='checkbox' type='radio' name='choice[".$questionId."]' value='".$answerId."'>
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</td>
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<td>";
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$answer=api_parse_tex($answer);
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$s.=$answer;
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$s.="</td></tr>";
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}
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// multiple answers
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elseif($answerType == MULTIPLE_ANSWER)
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{
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$s.="<tr>
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<td align='center'>
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<input class='checkbox' type='checkbox' name='choice[".$questionId."][".$answerId."]' value='1'>
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</td>
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<td>";
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$answer = api_parse_tex($answer);
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$s.=$answer;
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$s.="</td></tr>";
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}
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// fill in blanks
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elseif($answerType == FILL_IN_BLANKS)
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{
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$s.="<tr><td colspan='2'>$answer</td></tr>";
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}
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// free answer
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// matching
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else
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{
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if(!$answerCorrect)
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{
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// options (A, B, C, ...) that will be put into the list-box
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$Select[$answerId]['Lettre']=$cpt1++;
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// answers that will be shown at the right side
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$answer = api_parse_tex($answer);
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$Select[$answerId]['Reponse']=$answer;
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}
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else
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{
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$s.="
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<tr>
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<td colspan='2'>
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<table border='0' cellpadding='0' cellspacing='0' width='100%'>
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<tr>";
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$answer=api_parse_tex($answer);
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$s.="<td width='40%' valign='top'><b>".$cpt2."</b>. ".$answer."</td>
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<td width='20%' align='center'> <select name='choice[".$questionId."][".$answerId."]'>
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<option value='0'>--</option>";
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// fills the list-box
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foreach($Select as $key=>$val)
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{
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$s.="<option value='".$key."'>".$val['Lettre']."</option>";
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} // end foreach()
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$s.="</select> </td>
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<td width='40%' valign='top'>";
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if(isset($Select[$cpt2])) $s.='<b>'.$Select[$cpt2]['Lettre'].'.</b> '.$Select[$cpt2]['Reponse'];
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else $s.=' ';
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$s.="
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</td>
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</tr>
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</table>
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</td>
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</tr>";
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$cpt2++;
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// if the left side of the "matching" has been completely shown
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if($answerId == $nbrAnswers)
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{
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// if it remains answers to shown at the right side
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while(isset($Select[$cpt2]))
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{
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$s.="<tr>
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<td colspan='2'>
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<table border='0' cellpadding='0' cellspacing='0' width='100%'>
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<tr>
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<td width='60%' colspan='2'> </td>
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<td width='40%' valign='top'>";
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$s.='<b>'.$Select[$cpt2]['Lettre'].'.</b> '.$Select[$cpt2]['Reponse'];
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$s.="</td>
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</tr>
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</table>
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</td>
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</tr>";
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$cpt2++;
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} // end while()
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} // end if()
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}
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}
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} // end for()
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// destruction of the Answer object
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unset($objAnswerTmp);
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// destruction of the Question object
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unset($objQuestionTmp);
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if ($origin != 'export')
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{
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echo $s;
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}
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else
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{
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return($s);
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}
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}
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elseif ($answerType == HOT_SPOT) // Question is of type HOT_SPOT
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{
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$questionName=$objQuestionTmp->selectTitle();
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$questionDescription=$objQuestionTmp->selectDescription();
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// Get the answers, make a list
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$objAnswerTmp=new Answer($questionId);
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$nbrAnswers=$objAnswerTmp->selectNbrAnswers();
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$answer_list = '<div style="padding: 10px; margin-left: -8px; border: 1px solid #4271b5; height: 620px; width: 200px;"><b>'.get_lang('HotspotZones').'</b><ol>';
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for($answerId=1;$answerId <= $nbrAnswers;$answerId++)
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{
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$answer_list .= '<li>'.$objAnswerTmp->selectAnswer($answerId).'</li>';
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}
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$answer_list .= '</ol></div>';
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if(!$onlyAnswers)
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{
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$s="<tr>
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<td valign='top' colspan='2'> ";
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$questionName=api_parse_tex($questionName);
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$s.=$questionName;
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$s.="</td>
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</tr>
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<tr>
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<td valign='top' colspan='2'>
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<i>";
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$questionDescription=api_parse_tex($questionDescription);
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$s.=$questionDescription;
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$s.="</i>
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</td>
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</tr>";
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}
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$canClick = isset($_GET['editQuestion']) ? '0' : (isset($_GET['modifyAnswers']) ? '0' : '1');
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//$tes = isset($_GET['modifyAnswers']) ? '0' : '1';
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//echo $tes;
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$s .= "<script type=\"text/javascript\" src=\"../plugin/hotspot/JavaScriptFlashGateway.js\"></script>
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<script src=\"../plugin/hotspot/hotspot.js\" type=\"text/javascript\"></script>
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<script language=\"JavaScript\" type=\"text/javascript\">
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<!--
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// -----------------------------------------------------------------------------
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// Globals
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// Major version of Flash required
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var requiredMajorVersion = 7;
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// Minor version of Flash required
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var requiredMinorVersion = 0;
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// Minor version of Flash required
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var requiredRevision = 0;
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// the version of javascript supported
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var jsVersion = 1.0;
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// -----------------------------------------------------------------------------
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// -->
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</script>
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<script language=\"VBScript\" type=\"text/vbscript\">
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<!-- // Visual basic helper required to detect Flash Player ActiveX control version information
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Function VBGetSwfVer(i)
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on error resume next
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Dim swControl, swVersion
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swVersion = 0
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set swControl = CreateObject(\"ShockwaveFlash.ShockwaveFlash.\" + CStr(i))
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if (IsObject(swControl)) then
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swVersion = swControl.GetVariable(\"\$version\")
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end if
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VBGetSwfVer = swVersion
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End Function
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// -->
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</script>
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<script language=\"JavaScript1.1\" type=\"text/javascript\">
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<!-- // Detect Client Browser type
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var isIE = (navigator.appVersion.indexOf(\"MSIE\") != -1) ? true : false;
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var isWin = (navigator.appVersion.toLowerCase().indexOf(\"win\") != -1) ? true : false;
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var isOpera = (navigator.userAgent.indexOf(\"Opera\") != -1) ? true : false;
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jsVersion = 1.1;
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// JavaScript helper required to detect Flash Player PlugIn version information
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function JSGetSwfVer(i){
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// NS/Opera version >= 3 check for Flash plugin in plugin array
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if (navigator.plugins != null && navigator.plugins.length > 0) {
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if (navigator.plugins[\"Shockwave Flash 2.0\"] || navigator.plugins[\"Shockwave Flash\"]) {
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var swVer2 = navigator.plugins[\"Shockwave Flash 2.0\"] ? \" 2.0\" : \"\";
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var flashDescription = navigator.plugins[\"Shockwave Flash\" + swVer2].description;
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descArray = flashDescription.split(\" \");
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tempArrayMajor = descArray[2].split(\".\");
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versionMajor = tempArrayMajor[0];
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versionMinor = tempArrayMajor[1];
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if ( descArray[3] != \"\" ) {
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tempArrayMinor = descArray[3].split(\"r\");
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} else {
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tempArrayMinor = descArray[4].split(\"r\");
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}
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versionRevision = tempArrayMinor[1] > 0 ? tempArrayMinor[1] : 0;
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flashVer = versionMajor + \".\" + versionMinor + \".\" + versionRevision;
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} else {
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flashVer = -1;
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}
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}
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// MSN/WebTV 2.6 supports Flash 4
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else if (navigator.userAgent.toLowerCase().indexOf(\"webtv/2.6\") != -1) flashVer = 4;
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// WebTV 2.5 supports Flash 3
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else if (navigator.userAgent.toLowerCase().indexOf(\"webtv/2.5\") != -1) flashVer = 3;
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// older WebTV supports Flash 2
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else if (navigator.userAgent.toLowerCase().indexOf(\"webtv\") != -1) flashVer = 2;
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// Can't detect in all other cases
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else
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{
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flashVer = -1;
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}
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return flashVer;
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}
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// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
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function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision)
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{
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reqVer = parseFloat(reqMajorVer + \".\" + reqRevision);
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// loop backwards through the versions until we find the newest version
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for (i=25;i>0;i--) {
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if (isIE && isWin && !isOpera) {
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versionStr = VBGetSwfVer(i);
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} else {
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versionStr = JSGetSwfVer(i);
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}
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if (versionStr == -1 ) {
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return false;
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} else if (versionStr != 0) {
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if(isIE && isWin && !isOpera) {
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tempArray = versionStr.split(\" \");
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tempString = tempArray[1];
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versionArray = tempString .split(\",\");
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} else {
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versionArray = versionStr.split(\".\");
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}
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versionMajor = versionArray[0];
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versionMinor = versionArray[1];
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versionRevision = versionArray[2];
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versionString = versionMajor + \".\" + versionRevision; // 7.0r24 == 7.24
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versionNum = parseFloat(versionString);
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// is the major.revision >= requested major.revision AND the minor version >= requested minor
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if ( (versionMajor > reqMajorVer) && (versionNum >= reqVer) ) {
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return true;
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} else {
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return ((versionNum >= reqVer && versionMinor >= reqMinorVer) ? true : false );
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}
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}
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}
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}
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// -->
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</script>";
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$s .= '<tr><td valign="top" colspan="2" width="100%"><table><tr><td width="735">'."
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<script language=\"JavaScript\" type=\"text/javascript\">
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<!--
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// Version check based upon the values entered above in \"Globals\"
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var hasReqestedVersion = DetectFlashVer(requiredMajorVersion, requiredMinorVersion, requiredRevision);
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// Check to see if the version meets the requirements for playback
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if (hasReqestedVersion) { // if we've detected an acceptable version
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var oeTags = '<object type=\"application/x-shockwave-flash\" data=\"../plugin/hotspot/hotspot_user.swf?modifyAnswers=".$questionId."&canClick:".$canClick."\" width=\"730\" height=\"620\">'
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+ '<param name=\"movie\" value=\"../plugin/hotspot/hotspot_user.swf?modifyAnswers=".$questionId."&canClick:".$canClick."\" \/>'
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+ '<\/object>';
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document.write(oeTags); // embed the Flash Content SWF when all tests are passed
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} else { // flash is too old or we can't detect the plugin
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var alternateContent = 'Error<br \/>'
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+ 'Hotspots requires Macromedia Flash 7.<br \/>'
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+ '<a href=http://www.macromedia.com/go/getflash/>Get Flash<\/a>';
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document.write(alternateContent); // insert non-flash content
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}
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// -->
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</script></td>
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<td valign='top' align='left'>$answer_list</td></tr></table>
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</td></tr>";
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echo $s;
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}
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echo "<tr><td colspan='2'> </td></tr>";
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return $nbrAnswers;
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}
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?>
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