<?php // $Id: exercise.lib.php 18002 2009-01-26 16:33:20Z juliomontoya $
/*
==============================================================================
Dokeos - elearning and course management software
Copyright (c) 2004-2008 Dokeos SPRL
Copyright (c) 2003 Ghent University (UGent)
Copyright (c) 2001 Universite catholique de Louvain (UCL)
Copyright (c) various contributors
For a full list of contributors, see "credits.txt".
The full license can be read in "license.txt".
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
See the GNU General Public License for more details.
Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
Mail: info@dokeos.com
==============================================================================
*/
/**
* Exercise library
* shows a question and its answers
* @package dokeos.exercise
* @author Olivier Brouckaert < oli.brouckaert @ skynet . be >
* @version $Id: exercise.lib.php 18002 2009-01-26 16:33:20Z juliomontoya $
*/
/**
* @param int question id
* @param boolean only answers
* @param boolean origin i.e = learnpath
* @param int current item from the list of questions
* @param int number of total questions
* */
require("../inc/lib/fckeditor/fckeditor.php") ;
function showQuestion($questionId, $onlyAnswers=false, $origin=false,$current_item, $total_item)
{
echo '< script src = "'.api_get_path(WEB_LIBRARY_PATH).'javascript/jquery.js" type = "text/javascript" > < / script > ';
echo '< script src = "'.api_get_path(WEB_LIBRARY_PATH).'javascript/jquery.corners.min.js" type = "text/javascript" > < / script > ';
// reads question informations
if(!$objQuestionTmp = Question::read($questionId))
{
// question not found
return false;
}
$answerType=$objQuestionTmp->selectType();
$pictureName=$objQuestionTmp->selectPicture();
if ($answerType != HOT_SPOT) // Question is not of type hotspot
{
if(!$onlyAnswers) {
$questionName=$objQuestionTmp->selectTitle();
$questionDescription=$objQuestionTmp->selectDescription();
$questionName=api_parse_tex($questionName);
$s="< div id = \"question_title\" class = \"sectiontitle\" >
".get_lang('Question').' ';
$s.=$current_item;
if($answerType == 2)
$s.=' / '.$total_item;
echo $s;
echo ': ';
$s =$questionName.'< / div > ';
$s.="< table class = 'exercise_questions' >
< tr >
< td valign = 'top' colspan = '2' >
";
$questionDescription=api_parse_tex($questionDescription);
$s.=$questionDescription;
$s.="
< / td >
< / tr > ";
if(!empty($pictureName))
{
$s.="
< tr >
< td align = 'center' colspan = '2' > < img src = '../document/download.php?doc_url=%2Fimages%2F' " . $ pictureName . " ' border = '0' > < / td >
< / tr > ";
}
} // end if(!$onlyAnswers)
$s.= '< / table > ';
$s.="< script > $ ( d o c u m e n t ) . r e a d y ( f u n c t i o n ( ) {
$('.rounded').corners();
$('.exercise_options').corners();
});< / script > ";
$s.="< div class = \"rounded exercise_questions \ " style = \"width: 720px ; padding: 3px ; background-color: # ccc ; \ " > < table width = \"720\" class = 'exercise_options' style = \"width: 720px ; background-color: # fff ; \ " > ";
// construction of the Answer object
$objAnswerTmp=new Answer($questionId);
$nbrAnswers=$objAnswerTmp->selectNbrAnswers();
// only used for the answer type "Matching"
if($answerType == MATCHING)
{
$cpt1='A';
$cpt2=1;
$Select=array();
}
elseif($answerType == FREE_ANSWER)
{
#$comment = $objAnswerTmp->selectComment(1);
//
$upload_path = api_get_path(REL_COURSE_PATH).$_SESSION['_course']['path'].'/document/';
$oFCKeditor = new FCKeditor("choice[".$questionId."]") ;
$oFCKeditor->BasePath = api_get_path(WEB_PATH) . 'main/inc/lib/fckeditor/' ;
$oFCKeditor->Config['CustomConfigurationsPath'] = api_get_path(REL_PATH)."main/inc/lib/fckeditor/myconfig.js";
$oFCKeditor->Config['IMUploadPath'] = 'upload/test/';
$oFCKeditor->ToolbarSet = "Test";
$oFCKeditor->Width = '80%';
$oFCKeditor->Height = '300';
$oFCKeditor->Value = '' ;
$TBL_LANGUAGES = Database::get_main_table(TABLE_MAIN_LANGUAGE);
$sql="SELECT isocode FROM ".$TBL_LANGUAGES." WHERE english_name='".Database::escape_string($_SESSION["_course"]["language"])."'";
$result_sql=api_sql_query($sql);
$isocode_language=mysql_result($result_sql,0,0);
$oFCKeditor->Config['DefaultLanguage'] = $isocode_language;
$oFCKeditor->Config['AdvancedFileManager'] = api_get_setting('advanced_filemanager') == 'true' ? true : false;
$s .= "< tr > < td colspan = '2' > ".$oFCKeditor->CreateHtml()."< / td > < / tr > ";
//$s.="< tr > < td colspan = '2' > < textarea cols = '80' rows = '10' name = 'choice[".$questionId."]' > $answer< / textarea > < / td > < / tr > ";
}
for($answerId=1;$answerId < = $nbrAnswers;$answerId++)
{
$answer=$objAnswerTmp->selectAnswer($answerId);
$answerCorrect=$objAnswerTmp->isCorrect($answerId);
if($answerType == FILL_IN_BLANKS)
{
// splits text and weightings that are joined with the character '::'
list($answer)=explode('::',$answer);
// because [] is parsed here we follow this procedure:
// 1. find everything between the [tex] and [/tex] tags
$startlocations=strpos($answer,'[tex]');
$endlocations=strpos($answer,'[/tex]');
if($startlocations !== false & & $endlocations !== false)
{
$texstring=substr($answer,$startlocations,$endlocations-$startlocations+6);
// 2. replace this by {texcode}
$answer=str_replace($texstring,'{texcode}',$answer);
}
// 3. do the normal matching parsing
// replaces [blank] by an input field
$answer=ereg_replace('\[[^]]+\]','< input type = "text" name = "choice['.$questionId.'][]" size = "10" > ',nl2br($answer));
// 4. replace the {texcode by the api_pare_tex parsed code}
$texstring = api_parse_tex($texstring);
$answer=str_replace("{texcode}",$texstring,$answer);
}
// unique answer
if($answerType == UNIQUE_ANSWER)
{
$s.="
< tr >
< td width = \"50\" >
< input class = 'checkbox' type = 'radio' name = 'choice[".$questionId."]' value = '".$answerId."' >
< / td >
< td > ";
$answer=api_parse_tex($answer);
$s.=$answer;
$s.="< / td > < / tr > ";
}
// multiple answers
elseif($answerType == MULTIPLE_ANSWER)
{
$s.="< tr >
< td width = \"50\" >
< input class = 'checkbox' type = 'checkbox' name = 'choice[".$questionId."][".$answerId."]' value = '1' >
< / td >
< td > ";
$answer = api_parse_tex($answer);
$s.=$answer;
$s.="< / td > < / tr > ";
}
// fill in blanks
elseif($answerType == FILL_IN_BLANKS)
{
$s.="< tr > < td colspan = '2' > $answer< / td > < / tr > ";
}
// free answer
// matching
else {
if(!$answerCorrect) {
// options (A, B, C, ...) that will be put into the list-box
$Select[$answerId]['Lettre']=$cpt1++;
// answers that will be shown at the right side
$answer = api_parse_tex($answer);
$Select[$answerId]['Reponse']=$answer;
} else {
$s.="
< tr >
< td colspan = '2' >
< table border = '0' cellpadding = '0' cellspacing = '0' width = '100%' >
< tr > ";
$answer=api_parse_tex($answer);
$s.="< td width = '40%' valign = 'top' > < b > ".$cpt2."< / b > . ".$answer."< / td >
< td width = '20%' align = 'center' > < select name = 'choice[".$questionId."][".$answerId."]' >
< option value = '0' > --< / option > ";
// fills the list-box
foreach($Select as $key=>$val) {
$s.="< option value = '".$key."' > ".$val['Lettre']."< / option > ";
} // end foreach()
$s.="< / select > < / td >
< td width = '40%' valign = 'top' > ";
if(isset($Select[$cpt2]))
$s.='< b > '.$Select[$cpt2]['Lettre'].'.< / b > '.$Select[$cpt2]['Reponse'];
else
$s.=' ';
$s.="
< / td >
< / tr >
< / table >
< / td >
< / tr > ";
$cpt2++;
// if the left side of the "matching" has been completely shown
if($answerId == $nbrAnswers)
{
// if it remains answers to shown at the right side
while(isset($Select[$cpt2])) {
$s.="< tr >
< td colspan = '2' >
< table border = '0' cellpadding = '0' cellspacing = '0' width = '100%' >
< tr >
< td width = '60%' colspan = '2' > < / td >
< td width = '40%' valign = 'top' > ";
$s.='< b > '.$Select[$cpt2]['Lettre'].'.< / b > '.$Select[$cpt2]['Reponse'];
$s.="< / td >
< / tr >
< / table >
< / td >
< / tr > ";
$cpt2++;
} // end while()
} // end if()
}
}
} // end for()
$s .= '< / table > < / div > ';
// destruction of the Answer object
unset($objAnswerTmp);
// destruction of the Question object
unset($objQuestionTmp);
if ($origin != 'export')
{
echo $s;
}
else
{
return($s);
}
}
elseif ($answerType == HOT_SPOT) // Question is of type HOT_SPOT
{
$questionName=$objQuestionTmp->selectTitle();
$questionDescription=$objQuestionTmp->selectDescription();
// Get the answers, make a list
$objAnswerTmp=new Answer($questionId);
$nbrAnswers=$objAnswerTmp->selectNbrAnswers();
$answer_list = '< div style = "padding: 10px; margin-left: 0px; border: 1px solid #4271b5; height: 481px; width: 200px;" > < b > '.get_lang('HotspotZones').'< / b > < ol > ';
for($answerId=1;$answerId < = $nbrAnswers;$answerId++)
{
$answer_list .= '< li > '.$objAnswerTmp->selectAnswer($answerId).'< / li > ';
}
$answer_list .= '< / ol > < / div > ';
if(!$onlyAnswers)
{
$s="< div id = \"question_title\" class = \"sectiontitle\" >
".get_lang('Question').' ';
$s.=$current_item;
if($answerType == 2)
$s.=' / '.$total_item;
echo $s;
echo ': ';
$s =$questionName.'< / div > ';
$s.="< table class = 'exercise_questions' >
< tr >
< td valign = 'top' colspan = '2' >
";
$questionDescription=api_parse_tex($questionDescription);
$s.=$questionDescription;
$s.="
< / td >
< / tr > ";
}
$canClick = isset($_GET['editQuestion']) ? '0' : (isset($_GET['modifyAnswers']) ? '0' : '1');
//$tes = isset($_GET['modifyAnswers']) ? '0' : '1';
//echo $tes;
$s .= "< script type = \"text/javascript\" src = \"../plugin/hotspot/JavaScriptFlashGateway.js\" > < / script >
< script src = \"../plugin/hotspot/hotspot.js\" type = \"text/javascript\" > < / script >
< script language = \"JavaScript\" type = \"text/javascript\" >
<!--
// -----------------------------------------------------------------------------
// Globals
// Major version of Flash required
var requiredMajorVersion = 7;
// Minor version of Flash required
var requiredMinorVersion = 0;
// Minor version of Flash required
var requiredRevision = 0;
// the version of javascript supported
var jsVersion = 1.0;
// -----------------------------------------------------------------------------
// -->
< / script >
< script language = \"VBScript\" type = \"text/vbscript\" >
<!-- // Visual basic helper required to detect Flash Player ActiveX control version information
Function VBGetSwfVer(i)
on error resume next
Dim swControl, swVersion
swVersion = 0
set swControl = CreateObject(\"ShockwaveFlash.ShockwaveFlash.\" + CStr(i))
if (IsObject(swControl)) then
swVersion = swControl.GetVariable(\"\$version\")
end if
VBGetSwfVer = swVersion
End Function
// -->
< / script >
< script language = \"JavaScript1.1\" type = \"text/javascript\" >
<!-- // Detect Client Browser type
var isIE = (navigator.appVersion.indexOf(\"MSIE\") != -1) ? true : false;
var isWin = (navigator.appVersion.toLowerCase().indexOf(\"win\") != -1) ? true : false;
var isOpera = (navigator.userAgent.indexOf(\"Opera\") != -1) ? true : false;
jsVersion = 1.1;
// JavaScript helper required to detect Flash Player PlugIn version information
function JSGetSwfVer(i){
// NS/Opera version >= 3 check for Flash plugin in plugin array
if (navigator.plugins != null & & navigator.plugins.length > 0) {
if (navigator.plugins[\"Shockwave Flash 2.0\"] || navigator.plugins[\"Shockwave Flash\"]) {
var swVer2 = navigator.plugins[\"Shockwave Flash 2.0\"] ? \" 2.0\" : \"\";
var flashDescription = navigator.plugins[\"Shockwave Flash\" + swVer2].description;
descArray = flashDescription.split(\" \");
tempArrayMajor = descArray[2].split(\".\");
versionMajor = tempArrayMajor[0];
versionMinor = tempArrayMajor[1];
if ( descArray[3] != \"\" ) {
tempArrayMinor = descArray[3].split(\"r\");
} else {
tempArrayMinor = descArray[4].split(\"r\");
}
versionRevision = tempArrayMinor[1] > 0 ? tempArrayMinor[1] : 0;
flashVer = versionMajor + \".\" + versionMinor + \".\" + versionRevision;
} else {
flashVer = -1;
}
}
// MSN/WebTV 2.6 supports Flash 4
else if (navigator.userAgent.toLowerCase().indexOf(\"webtv/2.6\") != -1) flashVer = 4;
// WebTV 2.5 supports Flash 3
else if (navigator.userAgent.toLowerCase().indexOf(\"webtv/2.5\") != -1) flashVer = 3;
// older WebTV supports Flash 2
else if (navigator.userAgent.toLowerCase().indexOf(\"webtv\") != -1) flashVer = 2;
// Can't detect in all other cases
else
{
flashVer = -1;
}
return flashVer;
}
// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision)
{
reqVer = parseFloat(reqMajorVer + \".\" + reqRevision);
// loop backwards through the versions until we find the newest version
for (i=25;i>0;i--) {
if (isIE & & isWin & & !isOpera) {
versionStr = VBGetSwfVer(i);
} else {
versionStr = JSGetSwfVer(i);
}
if (versionStr == -1 ) {
return false;
} else if (versionStr != 0) {
if(isIE & & isWin & & !isOpera) {
tempArray = versionStr.split(\" \");
tempString = tempArray[1];
versionArray = tempString .split(\",\");
} else {
versionArray = versionStr.split(\".\");
}
versionMajor = versionArray[0];
versionMinor = versionArray[1];
versionRevision = versionArray[2];
versionString = versionMajor + \".\" + versionRevision; // 7.0r24 == 7.24
versionNum = parseFloat(versionString);
// is the major.revision >= requested major.revision AND the minor version >= requested minor
if ( (versionMajor > reqMajorVer) & & (versionNum >= reqVer) ) {
return true;
} else {
return ((versionNum >= reqVer & & versionMinor >= reqMinorVer) ? true : false );
}
}
}
}
// -->
< / script > ";
$s .= '< tr > < td valign = "top" colspan = "2" width = "100%" > < table > < tr > < td width = "570" > '."
< script language = \"JavaScript\" type = \"text/javascript\" >
<!--
// Version check based upon the values entered above in \"Globals\"
var hasReqestedVersion = DetectFlashVer(requiredMajorVersion, requiredMinorVersion, requiredRevision);
// Check to see if the version meets the requirements for playback
if (hasReqestedVersion) { // if we've detected an acceptable version
var oeTags = '< object type = \"application/x-shockwave-flash\" data = \"../plugin/hotspot/hotspot_user.swf?modifyAnswers=".$questionId."&canClick:".$canClick."\" width = \"556\" height = \"501\" > '
+ '< param name = \"movie\" value = \"../plugin/hotspot/hotspot_user.swf?modifyAnswers=".$questionId."&canClick:".$canClick."\" \ / > '
+ '< \/object>';
document.write(oeTags); // embed the Flash Content SWF when all tests are passed
} else { // flash is too old or we can't detect the plugin
var alternateContent = 'Error< br \ / > '
+ 'Hotspots requires Macromedia Flash 7.< br \ / > '
+ '< a href = http://www.macromedia.com/go/getflash/ > Get Flash< \/a>';
document.write(alternateContent); // insert non-flash content
}
// -->
< / script > < / td >
< td valign = 'top' align = 'left' > $answer_list< / td > < / tr > < / table >
< / td > < / tr > ";
echo $s;
}
echo "< tr > < td colspan = '2' > < / td > < / tr > < / table > ";
return $nbrAnswers;
}
?>
