mod/hotpot/template/v6/jmatch6.js_

   1
   2 [inclScorm1.2]
   3 //JMATCH-SPECIFIC SCORM-RELATED JAVASCRIPT CODE
   4
   5 function SetScormScore(){
   6 //Reports the current score and any other information back to the LMS
   7         if (API != null){
   8                 API.LMSSetValue('cmi.core.score.raw', Score);
   9
  10 //Now send a detailed reports on the item
  11                 var ItemLabel = 'Matching';
  12                 API.LMSSetValue('cmi.objectives.0.id', 'obj'+ItemLabel);
  13                 API.LMSSetValue('cmi.interactions.0.id', 'int'+ItemLabel);
  14                 API.LMSSetValue('cmi.objectives.0.status', API.LMSGetValue('cmi.core.lesson_status'));
  15                 API.LMSSetValue('cmi.objectives.0.score.min', '0');
  16                 API.LMSSetValue('cmi.objectives.0.score.max', '100');
  17                 API.LMSSetValue('cmi.objectives.0.score.raw', Score);
  18 //We can only use the performance type, because we're storing multiple responses of various types.
  19                 API.LMSSetValue('cmi.interactions.0.type', 'performance');
  20
  21                 var AnswersTried = '';
  22                 for (var i=0; i<Status[0][3].length; i++){
  23                         if (i>0){AnswersTried += ' | ';}
  24                         for (var j=0; j<Status.length; j++){
  25                                 if (j>0){AnswersTried += ',';}
  26                                 AnswersTried += j + '.' + Status[j][3][i];
  27                         }
  28                 }
  29                 API.LMSSetValue('cmi.interactions.0.student_response', AnswersTried);
  30                 API.LMSCommit('');
  31         }
  32 }
  33 [/inclScorm1.2]
  34
  35 //JMATCH CORE JAVASCRIPT CODE
  36
  37 var CorrectIndicator = '[strCorrectIndicator]';
  38 var IncorrectIndicator = '[strIncorrectIndicator]';
  39 var YourScoreIs = '[strYourScoreIs]';
  40 var CorrectResponse = '[strGuessCorrect]';
  41 var IncorrectResponse = '[strGuessIncorrect]';
  42 var TotalUnfixedLeftItems = 0;
  43 var TotCorrectChoices = 0;
  44 var Penalties = 0;
  45 var Finished = false;
  46 var TimeOver = false;
  47
  48 var Score = 0;
  49 var Locked = false;
  50 var ShuffleQs = [boolShuffleQs];
  51 var QsToShow = [QsToShow];
  52
  53
  54 function StartUp(){
  55         RemoveBottomNavBarForIE();
  56
  57 [inclScorm1.2]
  58         ScormStartUp();
  59 [/inclScorm1.2]
  60
  61 [inclSendResults]
  62         GetUserName();
  63 [/inclSendResults]
  64
  65 [inclPreloadImages]
  66         PreloadImages([PreloadImageList]);
  67 [/inclPreloadImages]
  68
  69         SetUpItems(ShuffleQs,QsToShow);
  70
  71         TotalUnfixedLeftItems = document.getElementById('MatchDiv').getElementsByTagName('select').length;
  72
  73 //Create arrays
  74         CreateStatusArrays();
  75
  76 [inclTimer]
  77         StartTimer();
  78 [/inclTimer]
  79 }
  80
  81 Status = new Array();
  82
  83
  84 function CreateStatusArrays(){
  85         var Selects = document.getElementById('Questions').getElementsByTagName('select');
  86         for (var x=0; x<Selects.length; x++){
  87                 Status[x] = new Array();
  88                 Status[x][0] = 0; // Item not matched correctly yet
  89                 Status[x][1] = 0; //Tries at this item so far
  90                 Status[x][2] = Selects[x].id; //Store a ref to the original drop-down
  91                 Status[x][3] = new Array(); //Sequence of guesses for this item
  92         }
  93 }
  94
  95 function GetKeyFromSelectContainer(Container){
  96         var Result = -1;
  97         if (Container.getElementsByTagName('select').length > 0){
  98                 var Select = Container.getElementsByTagName('select')[0];
  99                 if (Select != null){
 100                         Result = parseInt(Select.id.substring(1, Select.id.length));
 101                 }
 102         }
 103         return Result;
 104 }
 105
 106 function GetKeyFromSelect(Select){
 107         var Result = -1;
 108         if (Select != null){
 109                 Result = parseInt(Select.id.substring(1, Select.id.length));
 110         }
 111         return Result;
 112 }
 113
 114 var OriginalKeys = new Array();
 115 var ReducedKeys = new Array();
 116
 117 function GetUniqueKeys(Container, TargetArray){
 118         TargetArray.length = 0;
 119         var x = -1;
 120         var SList = Container.getElementsByTagName('select');
 121         if (SList.length > 0){
 122                 for (var i=0; i<SList.length; i++){
 123                         x = GetKeyFromSelect(SList[i]);
 124                         if (TargetArray.indexOf(x) < 0){
 125                                 TargetArray.push(x);
 126                         }
 127                 }
 128         }
 129 }
 130
 131 function SetUpItems(ShuffleQs, ReduceTo){
 132         var QList = new Array();
 133         var i, j, k, Selects, Options;
 134
 135 //Remove all the table rows and put them in an array for processing
 136         var Qs = document.getElementById('Questions');
 137
 138 //First, get a list of keys
 139         GetUniqueKeys(Qs, OriginalKeys);
 140
 141 //Remove the table rows to an array
 142         while (Qs.getElementsByTagName('tr').length > 0){
 143                 QList.push(Qs.removeChild(Qs.getElementsByTagName('tr')[0]));
 144         }
 145
 146         var Reducing = (QList.length > ReduceTo);
 147
 148 //If required, select random rows to delete
 149         if (Reducing == true){
 150                 var DumpItem = 0;
 151                 while (ReduceTo < QList.length){
 152
 153 //Get a number to delete from the array
 154                         DumpItem = Math.floor(QList.length*Math.random());
 155                         for (i=DumpItem; i<(QList.length-1); i++){
 156                                 QList[i] = QList[i+1];
 157                         }
 158                         QList.length = QList.length-1;
 159                 }
 160         }
 161 //Shuffle the rows if necessary
 162         if (ShuffleQs == true){
 163                 QList = Shuffle(QList);
 164         }
 165
 166         TotalUnfixedLeftItems = QList.length;
 167
 168 //Write the rows back to the table body
 169         for (i=0; i<QList.length; i++){
 170                 Qs.appendChild(QList[i]);
 171         }
 172
 173 //Now we need to remove any drop-down options that no longer have associated select items
 174         if (Reducing == true){
 175                 GetUniqueKeys(Qs, ReducedKeys);
 176
 177                 Selects = Qs.getElementsByTagName('select');
 178                 for (i=0; i<Selects.length; i++){
 179                         Options = Selects[i].getElementsByTagName('option');
 180                         for (j=Options.length-1; j>=0; j--){
 181                                 if (OptionRequired(Options[j].value) == false){
 182                                         Selects[i].removeChild(Options[j]);
 183                                 }
 184                         }
 185                 }
 186         }
 187 }
 188
 189 function OptionRequired(Key){
 190         if (ReducedKeys.indexOf(Key) > -1){
 191                 return true;
 192         }
 193         else{
 194                 if (OriginalKeys.indexOf(Key) > -1){
 195                         return false;
 196                 }
 197                 else{
 198                         return true;
 199                 }
 200         }
 201 }
 202
 203 function CheckAnswers(){
 204         if (Locked == true){return;}
 205         var Select = null;
 206         var Key = -1;
 207         var Parent = null;
 208         var Answer = null;
 209         var AnsText = '';
 210         var AllDone = true;
 211         TotCorrectChoices = 0;
 212
 213 //for each item not fixed or a distractor
 214         for (var i=0; i<Status.length; i++){
 215
 216 //if it hasn't been answered correctly yet
 217                 if (Status[i][0] < 1){
 218
 219 //Add one to the number of tries for this item
 220                         Status[i][1]++;
 221
 222 //Get a pointer to the drop-down
 223                         Select = document.getElementById(Status[i][2]);
 224                         Key = GetKeyFromSelect(Select);
 225 //Save the answer given
 226                         Status[i][3].push(Select.options[Select.selectedIndex].value);
 227
 228 //Check the answer
 229                         if (Select.options[Select.selectedIndex].value == Key){
 230                                         Status[i][0] = 1;
 231                                         AnsText = Select.options[Select.selectedIndex].innerHTML;
 232                                         Parent = Select.parentNode;
 233                                         Parent.removeChild(Select);
 234                                         Parent.innerHTML = AnsText;
 235                                         Parent.nextSibling.innerHTML = CorrectIndicator;
 236                         }
 237                         else{
 238                                 AllDone = false;
 239                                 Parent = Select.parentNode;
 240                                 Parent.nextSibling.innerHTML = IncorrectIndicator;
 241                         }
 242                 }
 243                 else{
 244 //Add a copy of the last (correct) answer.
 245                         Status[i][3].push(Status[i][3][Status[i][3].length-1]);
 246                 }
 247 //If it's correct, count it
 248                 if (Status[i][0] == 1){
 249                         TotCorrectChoices++;
 250                 }
 251         }
 252 //Calculate the score
 253         Score = Math.floor(((TotCorrectChoices-Penalties)/TotalUnfixedLeftItems)*100);
 254         if (Score<0){Score = 0;}
 255         var Feedback = '';
 256
 257 //Build the feedback
 258         if (AllDone == true){
 259                 Feedback = CorrectResponse + '<br />' + YourScoreIs + Score + '%.';
 260         }
 261         else{
 262                 Feedback = IncorrectResponse + '<br />' + YourScoreIs + Score + '%.';
 263 //Penalty for incorrect check
 264                 Penalties++;
 265         }
 266
 267 //If the exercise is over, deal with that
 268         if ((AllDone == true)||(TimeOver == true)){
 269 [inclSendResults]
 270                 setTimeout('SendResults(' + Score + ')', 50);
 271 [/inclSendResults]
 272 [inclTimer]
 273                 window.clearInterval(Interval);
 274 [/inclTimer]
 275                 TimeOver = true;
 276                 Locked = true;
 277                 Finished = true;
 278                 setTimeout('Finish()', SubmissionTimeout);
 279                 WriteToInstructions(Feedback);
 280         }
 281
 282 //Show the feedback
 283         ShowMessage(Feedback);
 284
 285 [inclScorm1.2]
 286         if (AllDone == true){
 287                 SetScormComplete();
 288         }
 289         else{
 290                 SetScormIncomplete();
 291         }
 292 [/inclScorm1.2]
 293 }
 294
 295 [inclTimer]
 296 function TimesUp() {
 297         document.getElementById('Timer').innerHTML = '[strTimesUp]';
 298 [inclPreloadImages]
 299         RefreshImages();
 300 [/inclPreloadImages]
 301         TimeOver = true;
 302         Finished = true;
 303         CheckAnswers();
 304         Locked = true;
 305 [inclScorm1.2]
 306         SetScormTimedOut();
 307 [/inclScorm1.2]
 308 }
 309 [/inclTimer]
 310