forked from Khan/khan-exercises
/
exercise_maker.html
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/
exercise_maker.html
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<!DOCTYPE html>
<head>
<meta charset="UTF-8" />
<title>Exercise maker</title>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js" type="text/javascript"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.14/jquery-ui.min.js" type="text/javascript"></script>
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.14/themes/ui-lightness/jquery-ui.css" />
<script src="../" type="text/javascript"></script>
<script>
var variables = [];
var inputArray = [];
var solutionArray = [];
var hintsArray = [];
function Variable( text, name ){
this.text = text;
this.name = name;
this.toJs = function() {
return this.text;
}
}
function creatingNewVariable( span, varName ) {
var askVar = "Random number <input type='radio' name='varType' value = 'ran' />From <input id='fromV' /> To <input id='toV'/> ";
askVar += "<br> Custom function <input type='radio' name='varType' value = 'cust' /><input id='function' />";
$newVariableDialog = $('<div></div>').html( askVar, varName ).dialog({
title: 'Pick a var',
width: 400,
height: 300,
modal: true,
autoOpen: true,
buttons: {
"Confirm": function() {
if( $('input[name=varType]:checked').val() === 'ran' ){
variables.push( new Variable ( "randRange(" + $('#fromV').val() + ' , ' + $('#toV').val() + ")" , varName ));
}
else{
variables.push( new Variable ( $("#function").val() , varName));
}
if ( ( $(span).attr('id').substring(0,1) === 'q') ) {
inputArray[ $( span ).attr( 'id' ).substring( 1 ) ] = " <var>" + varName + "</var> " ;
}
else if ( $(span).attr('id').substring(0,1) === 's') {
solutionArray[ $( span ).attr( 'id' ).substring( 1 ) ] = " <var>" + varName + "</var> ";
}
else if ( $(span).attr('id').substring(0,1) === 'h') {
hintsArray[ $( span ).attr( 'id' ).substring( 1 ) ] = " <var>" + varName + "</var> ";
}
$(this).dialog("close");
$(this).remove();
}
}
})
}
function genVars( vars ){
toReturn = '<div class="vars">';
for( x = 0; x< vars.length; x++ ) {
toReturn += '<var id = "' + vars[x].name + '">' + vars[x].toJs()+ '</var>'
}
toReturn += '</div>';
return toReturn;
}
function genQuestion( text ) {
return '<div class="question">' + text + '</div>';
}
function genSolution( text ) {
return '<div class="solution">' + text + ' </div>';
}
function genHints( text ){
return "" + '<div class="hints"> ' + text + ' </div>';
}
function addVariable( span ){
$(span).attr('id').substring(1);
var alreadyThere = "";
for ( x = 0; x < variables.length; x++ ) {
alreadyThere += variables[x].name + " <input type='radio' name='var' value = '" + variables[x].name + "' />"
}
alreadyThere += "NewOne <input type='radio' name='var' value = '_New' /><input type='textbox' id = 'varName' /> "
$variableDialog = $('<div></div>').html(alreadyThere).dialog({
title: 'Randomize a number',
width: 400,
height: 300,
modal: false,
autoOpen: true,
buttons: {
"Confirm": function() {
if( $('input[name=var]:checked').val() !== "_New" ){
if( $(span).attr('id').substring(0,1) === 'q') {
inputArray[ $( span ).attr( 'id' ).substring( 1 ) ] = " <var>" +$('input[name=var]:checked').val() + "</var> ";
}
else if ( $(span).attr('id').substring(0,1) === 's') {
solutionArray[ $( span ).attr( 'id' ).substring( 1 ) ] = " <var>" +$('input[name=var]:checked').val() + "</var> ";
}
else if ( $(span).attr('id').substring(0,1) === 'h') {
hintsArray[ $( span ).attr( 'id' ).substring( 1 ) ] = " <var>" +$('input[name=var]:checked').val() + "</var> ";
}
}
else{
creatingNewVariable( span, $("#varName").val() );
}
generate();
$(this).dialog("close");
$(this).remove();
}
}
})
}
function populateQuestion(){
var input = $("#question").val();
if ( inputArray.length < 2 ){
inputArray = input.split(' ');
}
var toReturn = "";
var openVar = false
for( x = 0; x< inputArray.length; x++ ) {
if( inputArray[x].substring(0,5) == "</var" || inputArray[x].substring( inputArray[x].length - 6) == "</var>" ){
openVar = false;
toReturn += inputArray[x];
}
else if( openVar || inputArray[x].substring(0,5) == "<var>"){
openVar = true;
toReturn += inputArray[x];
}
else {
toReturn += "<span id='q" + x + "' onClick='addVariable(this)' > " + inputArray[x] + "</span>";
}
}
$("#questionInput").html( toReturn );
return;
}
function populateSolution(){
var input = $("#solution").val();
if ( solutionArray.length < 1 ){
solutionArray = input.split(" ");
}
var toReturn = "";
var openVar = false
for( x = 0; x< solutionArray.length; x++ ) {
if( solutionArray[x].substring(0,5) == "</var" || solutionArray[x].substring( solutionArray[x].length - 6) == "</var>" ){
openVar = false;
toReturn += solutionArray[x];
}
else if( openVar || solutionArray[x].substring(0,5) == "<var>"){
openVar = true;
toReturn += solutionArray[x];
}
else {
toReturn += "<span id='s" + x + "' onClick='addVariable(this)' > " + solutionArray[x] + "</span>";
}
}
alert(toReturn);
$("#solutionInput").html( toReturn );
}
function populateHints(){
var input = $("#hints").val();
if ( hintsArray.length < 2 ){
hintsArray = input.split(" ");
}
var toReturn = "";
var openVar = false
for( x = 0; x< hintsArray.length; x++ ) {
if( hintsArray[x].substring(0,5) == "</var" || hintsArray[x].substring( hintsArray[x].length - 6) == "</var>" ){
openVar = false;
toReturn += hintsArray[x];
}
else if( openVar || hintsArray[x].substring(0,5) == "<var>"){
openVar = true;
toReturn += hintsArray[x];
}
else {
toReturn += "<span id='h" + x + "' onClick='addVariable(this)' > " + hintsArray[x] + "</span>";
}
}
$("#hintsInput").html( toReturn );
}
function genHead( title ){
var head = '' +
'<!DOCTYPE html>' +
'<html data-require="math math-format expressions">' +
'<head>' +
' <meta charset="UTF-8" />' +
' <title>' + title + '</title>' +
' <script src="../khan-exercise.js"></script\> ' +
'</head>' ;
return head;
}
function generate(){
populateQuestion();
populateSolution();
populateHints();
alert( genHints( $('#hintsInput' ).html() ) );
var html = genHead($("#title").val()) + '<body><div class="exercise">' + genVars( variables ) +
'' +
' <div class="problems">' +
' <div>' + genQuestion( $("#questionInput").html()) +
genSolution( $("#solutionInput").html() )
+ genHints( $( '#hintsInput' ).html() ) +
'</div>' +
' </div>' +
'</body>' +
'</html>';
alert( html );
$("#frame").remove();
var $frame = $('<iframe id="frame" style="width:1000px; height:800px;">');
$('body').append( $frame );
setTimeout( function() {
var ifrm = document.getElementById('frame');
ifrm = (ifrm.contentWindow) ? ifrm.contentWindow : (ifrm.contentDocument.document) ? ifrm.contentDocument.document : ifrm.contentDocument;
ifrm.document.open();
ifrm.document.write(html);
ifrm.document.close();
}, 1 );
}
</script>
<body>
Title
<input id="title">
<br>
Question
<textarea id="question" rows = "4" columns = "400" type="text"></textarea>
<br>
Solution
<input id="solution">
<br>
Hints
<textarea id="hints" rows = "4" columns = "400" type="text"></textarea>
<div id = "questionInput"></div>
<div id = "solutionInput"></div>
<div id = "hintsInput"></div>
<input type="button" value="Generate" onClick="generate();">
<div id="fr">
</div>
</body>
</html>