comparison interfaces/discrete.js @ 2538:464c6c6692d6

Beautified entire project.

 // Once this is loaded and parsed, begin execution
 loadInterface();
 
 function loadInterface() {
-	// Use this to do any one-time page / element construction. For instance, placing any stationary text objects,
-	// holding div's, or setting up any nodes which are present for the entire test sequence
-	
-	// The injection point into the HTML page
-	interfaceContext.insertPoint = document.getElementById("topLevelBody");
-	var testContent = document.createElement('div');
-	testContent.id = 'testContent';
-	
-	// Create the top div for the Title element
-	var titleAttr = specification.title;
-	var title = document.createElement('div');
-	title.className = "title";
-	title.align = "center";
-	var titleSpan = document.createElement('span');
+    // Use this to do any one-time page / element construction. For instance, placing any stationary text objects,
+    // holding div's, or setting up any nodes which are present for the entire test sequence
+
+    // The injection point into the HTML page
+    interfaceContext.insertPoint = document.getElementById("topLevelBody");
+    var testContent = document.createElement('div');
+    testContent.id = 'testContent';
+
+    // Create the top div for the Title element
+    var titleAttr = specification.title;
+    var title = document.createElement('div');
+    title.className = "title";
+    title.align = "center";
+    var titleSpan = document.createElement('span');
     titleSpan.id = "test-title";
-	
-	// Set title to that defined in XML, else set to default
-	if (titleAttr != undefined) {
-		titleSpan.textContent = titleAttr;
-	} else {
-		titleSpan.textContent =  'Listening test';
-	}
-	// Insert the titleSpan element into the title div element.
-	title.appendChild(titleSpan);
-	
-	var pagetitle = document.createElement('div');
-	pagetitle.className = "pageTitle";
-	pagetitle.align = "center";
-	var titleSpan = document.createElement('span');
-	titleSpan.id = "pageTitle";
-	pagetitle.appendChild(titleSpan);
-	
-	// Create Interface buttons!
-	var interfaceButtons = document.createElement('div');
-	interfaceButtons.id = 'interface-buttons';
-	interfaceButtons.style.height = '25px';
-	
-	// Create playback start/stop points
-	var playback = document.createElement("button");
-	playback.innerHTML = 'Stop';
-	playback.id = 'playback-button';
-	playback.style.float = 'left';
-	// onclick function. Check if it is playing or not, call the correct function in the
-	// audioEngine, change the button text to reflect the next state.
-	playback.onclick = function() {
-		if (audioEngineContext.status == 1) {
-			audioEngineContext.stop();
-			this.innerHTML = 'Stop';
+
+    // Set title to that defined in XML, else set to default
+    if (titleAttr != undefined) {
+        titleSpan.textContent = titleAttr;
+    } else {
+        titleSpan.textContent = 'Listening test';
+    }
+    // Insert the titleSpan element into the title div element.
+    title.appendChild(titleSpan);
+
+    var pagetitle = document.createElement('div');
+    pagetitle.className = "pageTitle";
+    pagetitle.align = "center";
+    var titleSpan = document.createElement('span');
+    titleSpan.id = "pageTitle";
+    pagetitle.appendChild(titleSpan);
+
+    // Create Interface buttons!
+    var interfaceButtons = document.createElement('div');
+    interfaceButtons.id = 'interface-buttons';
+    interfaceButtons.style.height = '25px';
+
+    // Create playback start/stop points
+    var playback = document.createElement("button");
+    playback.innerHTML = 'Stop';
+    playback.id = 'playback-button';
+    playback.style.float = 'left';
+    // onclick function. Check if it is playing or not, call the correct function in the
+    // audioEngine, change the button text to reflect the next state.
+    playback.onclick = function () {
+        if (audioEngineContext.status == 1) {
+            audioEngineContext.stop();
+            this.innerHTML = 'Stop';
             var time = audioEngineContext.timer.getTestTime();
             console.log('Stopped at ' + time); // DEBUG/SAFETY
-		}
-	};
-    
+        }
+    };
+
     // Create outside reference holder
     var outsideRef = document.createElement("div");
     outsideRef.id = "outside-reference-holder";
-    
-	// Create Submit (save) button
-	var submit = document.createElement("button");
-	submit.innerHTML = 'Next';
-	submit.onclick = buttonSubmitClick;
-	submit.id = 'submit-button';
-	submit.style.float = 'left';
-	// Append the interface buttons into the interfaceButtons object.
-	interfaceButtons.appendChild(playback);
-	interfaceButtons.appendChild(submit);
-	
-	// Create a slider box
-	var sliderBox = document.createElement('div');
-	sliderBox.style.width = "100%";
-	sliderBox.style.height = window.innerHeight - 200+12 + 'px';
-	sliderBox.style.marginBottom = '10px';
-	sliderBox.id = 'slider';
-	var scaleHolder = document.createElement('div');
-	scaleHolder.id = "scale-holder";
-	scaleHolder.style.marginLeft = "107px";
-	sliderBox.appendChild(scaleHolder);
-	var scaleText = document.createElement('div');
-	scaleText.id = "scale-text-holder";
-	scaleText.style.height = "25px";
-	scaleText.style.width = "100%";
-	scaleHolder.appendChild(scaleText);
-	var scaleCanvas = document.createElement('canvas');
-	scaleCanvas.id = "scale-canvas";
-	scaleCanvas.style.marginLeft = "150px";
-	scaleHolder.appendChild(scaleCanvas);
-	var sliderObjectHolder = document.createElement('div');
-	sliderObjectHolder.id = 'slider-holder';
-	sliderObjectHolder.align = "center";
-	sliderBox.appendChild(sliderObjectHolder);
-	
-	// Global parent for the comment boxes on the page
-	var feedbackHolder = document.createElement('div');
-	feedbackHolder.id = 'feedbackHolder';
-	
-	testContent.style.zIndex = 1;
-	interfaceContext.insertPoint.innerHTML = ""; // Clear the current schema
-	
-	// Inject into HTML
-	testContent.appendChild(title); // Insert the title
-	testContent.appendChild(pagetitle);
-	testContent.appendChild(interfaceButtons);
+
+    // Create Submit (save) button
+    var submit = document.createElement("button");
+    submit.innerHTML = 'Next';
+    submit.onclick = buttonSubmitClick;
+    submit.id = 'submit-button';
+    submit.style.float = 'left';
+    // Append the interface buttons into the interfaceButtons object.
+    interfaceButtons.appendChild(playback);
+    interfaceButtons.appendChild(submit);
+
+    // Create a slider box
+    var sliderBox = document.createElement('div');
+    sliderBox.style.width = "100%";
+    sliderBox.style.height = window.innerHeight - 200 + 12 + 'px';
+    sliderBox.style.marginBottom = '10px';
+    sliderBox.id = 'slider';
+    var scaleHolder = document.createElement('div');
+    scaleHolder.id = "scale-holder";
+    scaleHolder.style.marginLeft = "107px";
+    sliderBox.appendChild(scaleHolder);
+    var scaleText = document.createElement('div');
+    scaleText.id = "scale-text-holder";
+    scaleText.style.height = "25px";
+    scaleText.style.width = "100%";
+    scaleHolder.appendChild(scaleText);
+    var scaleCanvas = document.createElement('canvas');
+    scaleCanvas.id = "scale-canvas";
+    scaleCanvas.style.marginLeft = "150px";
+    scaleHolder.appendChild(scaleCanvas);
+    var sliderObjectHolder = document.createElement('div');
+    sliderObjectHolder.id = 'slider-holder';
+    sliderObjectHolder.align = "center";
+    sliderBox.appendChild(sliderObjectHolder);
+
+    // Global parent for the comment boxes on the page
+    var feedbackHolder = document.createElement('div');
+    feedbackHolder.id = 'feedbackHolder';
+
+    testContent.style.zIndex = 1;
+    interfaceContext.insertPoint.innerHTML = ""; // Clear the current schema
+
+    // Inject into HTML
+    testContent.appendChild(title); // Insert the title
+    testContent.appendChild(pagetitle);
+    testContent.appendChild(interfaceButtons);
     testContent.appendChild(outsideRef);
-	testContent.appendChild(sliderBox);
-	testContent.appendChild(feedbackHolder);
-	interfaceContext.insertPoint.appendChild(testContent);
-
-	// Load the full interface
-	testState.initialise();
-	testState.advanceState();
+    testContent.appendChild(sliderBox);
+    testContent.appendChild(feedbackHolder);
+    interfaceContext.insertPoint.appendChild(testContent);
+
+    // Load the full interface
+    testState.initialise();
+    testState.advanceState();
 };
 
-function loadTest(page)
-{
-	// Called each time a new test page is to be build. The page specification node is the only item passed in
-	var id = page.id;
-	
-	var feedbackHolder = document.getElementById('feedbackHolder');
+function loadTest(page) {
+    // Called each time a new test page is to be build. The page specification node is the only item passed in
+    var id = page.id;
+
+    var feedbackHolder = document.getElementById('feedbackHolder');
     feedbackHolder.innerHTML = "";
-	var interfaceObj = page.interfaces;
-	if (interfaceObj.length > 1)
-	{
-		console.log("WARNING - This interface only supports one <interface> node per page. Using first interface node");
-	}
-	interfaceObj = interfaceObj[0];
-    
+    var interfaceObj = page.interfaces;
+    if (interfaceObj.length > 1) {
+        console.log("WARNING - This interface only supports one <interface> node per page. Using first interface node");
+    }
+    interfaceObj = interfaceObj[0];
+
     // Set the page title
     if (typeof page.title == "string" && page.title.length > 0) {
         document.getElementById("test-title").textContent = page.title
     }
-    
-	if(interfaceObj.title != null)
-	{
-		document.getElementById("pageTitle").textContent = interfaceObj.title;
-	}
-	
-	// Delete outside reference
+
+    if (interfaceObj.title != null) {
+        document.getElementById("pageTitle").textContent = interfaceObj.title;
+    }
+
+    // Delete outside reference
     document.getElementById("outside-reference-holder").innerHTML = "";
-	
-	var sliderBox = document.getElementById('slider-holder');
-	sliderBox.innerHTML = "";
-	
-	var commentBoxPrefix = "Comment on track";
-	if (interfaceObj.commentBoxPrefix != undefined) {
-		commentBoxPrefix = interfaceObj.commentBoxPrefix;
-	}
-	var loopPlayback = page.loop;
-	
-	// Find all the audioElements from the audioHolder
-	var index = 0;
-	var interfaceScales = testState.currentStateMap.interfaces[0].scales;
-	$(page.audioElements).each(function(index,element){
-		// Find URL of track
-		// In this jQuery loop, variable 'this' holds the current audioElement.
-		
-		var audioObject = audioEngineContext.newTrack(element);
-		if (element.type == 'outside-reference')
-		{
-			// Construct outside reference;
-			var orNode = new interfaceContext.outsideReferenceDOM(audioObject,index,document.getElementById("outside-reference-holder"));
-			audioObject.bindInterface(orNode);
-		} else {
-			// Create a slider per track
-            switch(audioObject.specification.parent.label) {
+
+    var sliderBox = document.getElementById('slider-holder');
+    sliderBox.innerHTML = "";
+
+    var commentBoxPrefix = "Comment on track";
+    if (interfaceObj.commentBoxPrefix != undefined) {
+        commentBoxPrefix = interfaceObj.commentBoxPrefix;
+    }
+    var loopPlayback = page.loop;
+
+    // Find all the audioElements from the audioHolder
+    var index = 0;
+    var interfaceScales = testState.currentStateMap.interfaces[0].scales;
+    $(page.audioElements).each(function (index, element) {
+        // Find URL of track
+        // In this jQuery loop, variable 'this' holds the current audioElement.
+
+        var audioObject = audioEngineContext.newTrack(element);
+        if (element.type == 'outside-reference') {
+            // Construct outside reference;
+            var orNode = new interfaceContext.outsideReferenceDOM(audioObject, index, document.getElementById("outside-reference-holder"));
+            audioObject.bindInterface(orNode);
+        } else {
+            // Create a slider per track
+            switch (audioObject.specification.parent.label) {
                 case "none":
                     label = "";
                     break;
                 case "letter":
                     label = String.fromCharCode(97 + index);
                     break;
                 case "capital":
                     label = String.fromCharCode(65 + index);
                     break;
                 default:
-                    label = ""+index;
+                    label = "" + index;
                     break;
             }
-			var sliderObj = new discreteObject(audioObject,label,interfaceScales);
-			sliderBox.appendChild(sliderObj.holder);
-			audioObject.bindInterface(sliderObj);
+            var sliderObj = new discreteObject(audioObject, label, interfaceScales);
+            sliderBox.appendChild(sliderObj.holder);
+            audioObject.bindInterface(sliderObj);
             interfaceContext.commentBoxes.createCommentBox(audioObject);
-			index += 1;
-		}
-        
-	});
-	
+            index += 1;
+        }
+
+    });
+
     var interfaceOptions = specification.interfaces.options.concat(interfaceObj.options);
-    for (var option of interfaceOptions)
-    {
-        if (option.type == "show")
-        {
-            switch(option.name) {
+    for (var option of interfaceOptions) {
+        if (option.type == "show") {
+            switch (option.name) {
                 case "playhead":
                     var playbackHolder = document.getElementById('playback-holder');
-                    if (playbackHolder == null)
-                    {
+                    if (playbackHolder == null) {
                         playbackHolder = document.createElement('div');
                         playbackHolder.style.width = "100%";
                         playbackHolder.align = 'center';
                         playbackHolder.appendChild(interfaceContext.playhead.object);
                         feedbackHolder.appendChild(playbackHolder);
                     }
                     break;
                 case "page-count":
                     var pagecountHolder = document.getElementById('page-count');
-                    if (pagecountHolder == null)
-                    {
+                    if (pagecountHolder == null) {
                         pagecountHolder = document.createElement('div');
                         pagecountHolder.id = 'page-count';
                     }
-                    pagecountHolder.innerHTML = '<span>Page '+(testState.stateIndex+1)+' of '+testState.stateMap.length+'</span>';
+                    pagecountHolder.innerHTML = '<span>Page ' + (testState.stateIndex + 1) + ' of ' + testState.stateMap.length + '</span>';
                     var inject = document.getElementById('interface-buttons');
                     inject.appendChild(pagecountHolder);
                     break;
                 case "volume":
-                    if (document.getElementById('master-volume-holder') == null)
-                    {
+                    if (document.getElementById('master-volume-holder') == null) {
                         feedbackHolder.appendChild(interfaceContext.volume.object);
                     }
                     break;
                 case "comments":
-                    interfaceContext.commentBoxes.showCommentBoxes(feedbackHolder,true);
+                    interfaceContext.commentBoxes.showCommentBoxes(feedbackHolder, true);
                     break;
             }
         }
     }
-    
-    $(page.commentQuestions).each(function(index,element) {
-		var node = interfaceContext.createCommentQuestion(element);
-		feedbackHolder.appendChild(node.holder);
-	});
-    
-	// Auto-align
-	resizeWindow(null);
+
+    $(page.commentQuestions).each(function (index, element) {
+        var node = interfaceContext.createCommentQuestion(element);
+        feedbackHolder.appendChild(node.holder);
+    });
+
+    // Auto-align
+    resizeWindow(null);
 }
 
-function discreteObject(audioObject,label,interfaceScales)
-{
-	// An example node, you can make this however you want for each audioElement.
-	// However, every audioObject (audioEngineContext.audioObject) MUST have an interface object with the following
-	// You attach them by calling audioObject.bindInterface( )
-	if (interfaceScales == null || interfaceScales.length == 0)
-	{
-		console.log("WARNING: The discrete radio's are built depending on the number of scale points specified! Ensure you have some specified. Defaulting to 5 for now!");
-		numOptions = 5;
-	}
-	this.parent = audioObject;
-	
-	this.holder = document.createElement('div');
-	this.title = document.createElement('div');
-	this.discreteHolder = document.createElement('div');
-	this.discretes = [];
-	this.play = document.createElement('button');
-	
-	this.holder.className = 'track-slider';
-	this.holder.style.width = window.innerWidth-200 + 'px';
-	this.holder.appendChild(this.title);
-	this.holder.appendChild(this.discreteHolder);
-	this.holder.appendChild(this.play);
-	this.holder.setAttribute('trackIndex',audioObject.id);
-	this.title.textContent = label;
-	this.title.className = 'track-slider-title';
-	
-	this.discreteHolder.className = "track-slider-range";
-	this.discreteHolder.style.width = window.innerWidth-500 + 'px';
-	for (var i=0; i<interfaceScales.length; i++)
-	{
-		var node = document.createElement('input');
-		node.setAttribute('type','radio');
-		node.className = 'track-radio';
+function discreteObject(audioObject, label, interfaceScales) {
+    // An example node, you can make this however you want for each audioElement.
+    // However, every audioObject (audioEngineContext.audioObject) MUST have an interface object with the following
+    // You attach them by calling audioObject.bindInterface( )
+    if (interfaceScales == null || interfaceScales.length == 0) {
+        console.log("WARNING: The discrete radio's are built depending on the number of scale points specified! Ensure you have some specified. Defaulting to 5 for now!");
+        numOptions = 5;
+    }
+    this.parent = audioObject;
+
+    this.holder = document.createElement('div');
+    this.title = document.createElement('div');
+    this.discreteHolder = document.createElement('div');
+    this.discretes = [];
+    this.play = document.createElement('button');
+
+    this.holder.className = 'track-slider';
+    this.holder.style.width = window.innerWidth - 200 + 'px';
+    this.holder.appendChild(this.title);
+    this.holder.appendChild(this.discreteHolder);
+    this.holder.appendChild(this.play);
+    this.holder.setAttribute('trackIndex', audioObject.id);
+    this.title.textContent = label;
+    this.title.className = 'track-slider-title';
+
+    this.discreteHolder.className = "track-slider-range";
+    this.discreteHolder.style.width = window.innerWidth - 500 + 'px';
+    for (var i = 0; i < interfaceScales.length; i++) {
+        var node = document.createElement('input');
+        node.setAttribute('type', 'radio');
+        node.className = 'track-radio';
         node.disabled = true;
-		node.setAttribute('position',interfaceScales[i].position);
-		node.setAttribute('name',audioObject.specification.id);
-		node.setAttribute('id',audioObject.specification.id+'-'+String(i));
-		this.discretes.push(node);
-		this.discreteHolder.appendChild(node);
-		node.onclick = function(event)
-		{
-			if (audioEngineContext.status == 0)
-			{
-				event.currentTarget.checked = false;
-				return;
-			}
-			var time = audioEngineContext.timer.getTestTime();
-			var id = Number(event.currentTarget.parentNode.parentNode.getAttribute('trackIndex'));
-			var value = event.currentTarget.getAttribute('position') / 100.0;
-			audioEngineContext.audioObjects[id].metric.moved(time,value);
-			console.log('slider '+id+' moved to '+value+' ('+time+')');
-		};
-	}
-	
-	this.play.className = 'track-slider-button';
-	this.play.textContent = "Loading...";
-	this.play.value = audioObject.id;
-	this.play.disabled = true;
-    this.play.setAttribute("playstate","ready");
-	this.play.onclick = function(event)
-	{
-		var id = Number(event.currentTarget.value);
-		//audioEngineContext.metric.sliderPlayed(id);
+        node.setAttribute('position', interfaceScales[i].position);
+        node.setAttribute('name', audioObject.specification.id);
+        node.setAttribute('id', audioObject.specification.id + '-' + String(i));
+        this.discretes.push(node);
+        this.discreteHolder.appendChild(node);
+        node.onclick = function (event) {
+            if (audioEngineContext.status == 0) {
+                event.currentTarget.checked = false;
+                return;
+            }
+            var time = audioEngineContext.timer.getTestTime();
+            var id = Number(event.currentTarget.parentNode.parentNode.getAttribute('trackIndex'));
+            var value = event.currentTarget.getAttribute('position') / 100.0;
+            audioEngineContext.audioObjects[id].metric.moved(time, value);
+            console.log('slider ' + id + ' moved to ' + value + ' (' + time + ')');
+        };
+    }
+
+    this.play.className = 'track-slider-button';
+    this.play.textContent = "Loading...";
+    this.play.value = audioObject.id;
+    this.play.disabled = true;
+    this.play.setAttribute("playstate", "ready");
+    this.play.onclick = function (event) {
+        var id = Number(event.currentTarget.value);
+        //audioEngineContext.metric.sliderPlayed(id);
         if (event.currentTarget.getAttribute("playstate") == "ready")
             audioEngineContext.play(id);
         else if (event.currentTarget.getAttribute("playstate") == "playing")
             audioEngineContext.stop();
-	};
-	this.resize = function(event)
-	{
-		this.holder.style.width = window.innerWidth-200 + 'px';
-		this.discreteHolder.style.width = window.innerWidth-500 + 'px';
-		//text.style.left = (posPix+150-($(text).width()/2)) +'px';
-		for (var i=0; i<this.discretes.length; i++)
-		{
-			var width = $(this.discreteHolder).width() - 20;
-			var node = this.discretes[i];
-			var nodeW = $(node).width();
-			var position = node.getAttribute('position');
-			var posPix = Math.round(width * (position / 100.0));
-			node.style.left = (posPix+10 - (nodeW/2)) + 'px';
-		}
-	};
-	this.enable = function()
-	{
-		// This is used to tell the interface object that playback of this node is ready
-		this.play.disabled = false;
-		this.play.textContent = "Play";
-		$(this.slider).removeClass('track-slider-disabled');
-        for (var radio of this.discretes)
-        {
+    };
+    this.resize = function (event) {
+        this.holder.style.width = window.innerWidth - 200 + 'px';
+        this.discreteHolder.style.width = window.innerWidth - 500 + 'px';
+        //text.style.left = (posPix+150-($(text).width()/2)) +'px';
+        for (var i = 0; i < this.discretes.length; i++) {
+            var width = $(this.discreteHolder).width() - 20;
+            var node = this.discretes[i];
+            var nodeW = $(node).width();
+            var position = node.getAttribute('position');
+            var posPix = Math.round(width * (position / 100.0));
+            node.style.left = (posPix + 10 - (nodeW / 2)) + 'px';
+        }
+    };
+    this.enable = function () {
+        // This is used to tell the interface object that playback of this node is ready
+        this.play.disabled = false;
+        this.play.textContent = "Play";
+        $(this.slider).removeClass('track-slider-disabled');
+        for (var radio of this.discretes) {
             radio.disabled = false;
         }
-	};
-	this.updateLoading = function(progress)
-	{
-		// progress is a value from 0 to 100 indicating the current download state of media files
-        if (progress != 100)
-        {
+    };
+    this.updateLoading = function (progress) {
+        // progress is a value from 0 to 100 indicating the current download state of media files
+        if (progress != 100) {
             progress = String(progress);
             progress = progress.split('.')[0];
-            this.play.textContent = progress+'%';
+            this.play.textContent = progress + '%';
         } else {
             this.play.textContent = "Play";
         }
-	};
-    
-    this.startPlayback = function()
-    {
+    };
+
+    this.startPlayback = function () {
         // Called by audioObject when playback begins
-        this.play.setAttribute("playstate","playing");
+        this.play.setAttribute("playstate", "playing");
         $(".track-slider").removeClass('track-slider-playing');
-		$(this.holder).addClass('track-slider-playing');
-		var outsideReference = document.getElementById('outside-reference');
+        $(this.holder).addClass('track-slider-playing');
+        var outsideReference = document.getElementById('outside-reference');
         this.play.textContent = "Listening";
-		if (outsideReference != null) {
-			$(outsideReference).removeClass('track-slider-playing');
-		}
+        if (outsideReference != null) {
+            $(outsideReference).removeClass('track-slider-playing');
+        }
         if (this.parent.specification.parent.playOne || specification.playOne) {
             $('.track-slider-button').text = "Wait";
-            $('.track-slider-button').attr("disabled","true");
-        }
-    }
-    this.stopPlayback = function()
-    {
+            $('.track-slider-button').attr("disabled", "true");
+        }
+    }
+    this.stopPlayback = function () {
         // Called by audioObject when playback stops
         if (this.play.getAttribute("playstate") == "playing") {
-            this.play.setAttribute("playstate","ready");
+            this.play.setAttribute("playstate", "ready");
             $(this.holder).removeClass('track-slider-playing');
             $('.track-slider-button').text = "Play";
             this.play.textContent = "Play";
             $('.track-slider-button').removeAttr("disabled");
         }
     }
-    
-	this.getValue = function()
-	{
-		// Return the current value of the object. If there is no value, return -1
-		var value = -1;
-		for (var i=0; i<this.discretes.length; i++)
-		{
-			if (this.discretes[i].checked == true)
-			{
-				value = this.discretes[i].getAttribute('position') / 100.0;
-				break;
-			}
-		}
-		return value;
-	};
-	this.getPresentedId = function()
-	{
-		// Return the presented ID of the object. For instance, the APE has sliders starting from 0. Whilst AB has alphabetical scale
-		return this.title.textContent;
-	};
-	this.canMove = function()
-	{
-		// Return either true or false if the interface object can be moved. AB / Reference cannot, whilst sliders can and therefore have a continuous scale.
-		// These are checked primarily if the interface check option 'fragmentMoved' is enabled.
-		return true;
-	};
-	this.exportXMLDOM = function(audioObject) {
-		// Called by the audioObject holding this element to export the interface <value> node.
-		// If there is no value node (such as outside reference), return null
-		// If there are multiple value nodes (such as multiple scale / 2D scales), return an array of nodes with each value node having an 'interfaceName' attribute
-		// Use storage.document.createElement('value'); to generate the XML node.
-		var node = storage.document.createElement('value');
-		node.textContent = this.getValue();
-		return node;
-	};
-    this.error = function() {
-            // audioObject has an error!!
+
+    this.getValue = function () {
+        // Return the current value of the object. If there is no value, return -1
+        var value = -1;
+        for (var i = 0; i < this.discretes.length; i++) {
+            if (this.discretes[i].checked == true) {
+                value = this.discretes[i].getAttribute('position') / 100.0;
+                break;
+            }
+        }
+        return value;
+    };
+    this.getPresentedId = function () {
+        // Return the presented ID of the object. For instance, the APE has sliders starting from 0. Whilst AB has alphabetical scale
+        return this.title.textContent;
+    };
+    this.canMove = function () {
+        // Return either true or false if the interface object can be moved. AB / Reference cannot, whilst sliders can and therefore have a continuous scale.
+        // These are checked primarily if the interface check option 'fragmentMoved' is enabled.
+        return true;
+    };
+    this.exportXMLDOM = function (audioObject) {
+        // Called by the audioObject holding this element to export the interface <value> node.
+        // If there is no value node (such as outside reference), return null
+        // If there are multiple value nodes (such as multiple scale / 2D scales), return an array of nodes with each value node having an 'interfaceName' attribute
+        // Use storage.document.createElement('value'); to generate the XML node.
+        var node = storage.document.createElement('value');
+        node.textContent = this.getValue();
+        return node;
+    };
+    this.error = function () {
+        // audioObject has an error!!
         this.playback.textContent = "Error";
         $(this.playback).addClass("error-colour");
     }
 };
 
-function resizeWindow(event)
-{
-	// Called on every window resize event, use this to scale your page properly
-	var numObj = document.getElementsByClassName('track-slider').length;
-	var totalHeight = (numObj * 66)-30;
-	document.getElementById('scale-holder').style.width = window.innerWidth-220 + 'px';
-	// Cheers edge for making me delete a canvas every resize.
-	var canvas = document.getElementById('scale-canvas');
+function resizeWindow(event) {
+    // Called on every window resize event, use this to scale your page properly
+    var numObj = document.getElementsByClassName('track-slider').length;
+    var totalHeight = (numObj * 66) - 30;
+    document.getElementById('scale-holder').style.width = window.innerWidth - 220 + 'px';
+    // Cheers edge for making me delete a canvas every resize.
+    var canvas = document.getElementById('scale-canvas');
     var new_canvas = document.createElement("canvas");
     new_canvas.id = 'scale-canvas';
     new_canvas.style.marginLeft = "150px";
     canvas.parentElement.appendChild(new_canvas);
     canvas.parentElement.removeChild(canvas);
-	new_canvas.width = window.innerWidth-520;
-	new_canvas.height = totalHeight;
-	for (var i in audioEngineContext.audioObjects)
-	{
-		if (audioEngineContext.audioObjects[i].specification.type != 'outside-reference'){
-			audioEngineContext.audioObjects[i].interfaceDOM.resize(event);
-		}
-	}
+    new_canvas.width = window.innerWidth - 520;
+    new_canvas.height = totalHeight;
+    for (var i in audioEngineContext.audioObjects) {
+        if (audioEngineContext.audioObjects[i].specification.type != 'outside-reference') {
+            audioEngineContext.audioObjects[i].interfaceDOM.resize(event);
+        }
+    }
     document.getElementById('slider-holder').style.height = totalHeight + 'px';
     document.getElementById('slider').style.height = totalHeight + 70 + 'px';
-	drawScale();
+    drawScale();
 }
 
-function drawScale()
-{
-	var interfaceObj = testState.currentStateMap.interfaces[0];
-	var scales = testState.currentStateMap.interfaces[0].scales;
-	scales = scales.sort(function(a,b) {
-		return a.position - b.position;
-	});
-	var canvas = document.getElementById('scale-canvas');
-	var ctx = canvas.getContext("2d");
-	var height = canvas.height;
-	var width = canvas.width;
-	var textHolder = document.getElementById('scale-text-holder');
-	textHolder.innerHTML = "";
-	ctx.fillStyle = "#000000";
-	ctx.setLineDash([1,4]);
-	for (var scale of scales)
-	{
-		var posPercent = scale.position / 100.0;
-		var posPix = Math.round(width * posPercent);
-		if(posPix<=0){posPix=1;}
-		if(posPix>=width){posPix=width-1;}
-		ctx.moveTo(posPix,0);
-		ctx.lineTo(posPix,height);
-		ctx.stroke();
-		
-		var text = document.createElement('div');
-		text.align = "center";
-		var textC = document.createElement('span');
-		textC.textContent = scale.text;
-		text.appendChild(textC);
-		text.className = "scale-text";
-		textHolder.appendChild(text);
-		text.style.width = $(text.children[0]).width()+'px';
-		text.style.left = (posPix+150-($(text).width()/2)) +'px';
-	}
+function drawScale() {
+    var interfaceObj = testState.currentStateMap.interfaces[0];
+    var scales = testState.currentStateMap.interfaces[0].scales;
+    scales = scales.sort(function (a, b) {
+        return a.position - b.position;
+    });
+    var canvas = document.getElementById('scale-canvas');
+    var ctx = canvas.getContext("2d");
+    var height = canvas.height;
+    var width = canvas.width;
+    var textHolder = document.getElementById('scale-text-holder');
+    textHolder.innerHTML = "";
+    ctx.fillStyle = "#000000";
+    ctx.setLineDash([1, 4]);
+    for (var scale of scales) {
+        var posPercent = scale.position / 100.0;
+        var posPix = Math.round(width * posPercent);
+        if (posPix <= 0) {
+            posPix = 1;
+        }
+        if (posPix >= width) {
+            posPix = width - 1;
+        }
+        ctx.moveTo(posPix, 0);
+        ctx.lineTo(posPix, height);
+        ctx.stroke();
+
+        var text = document.createElement('div');
+        text.align = "center";
+        var textC = document.createElement('span');
+        textC.textContent = scale.text;
+        text.appendChild(textC);
+        text.className = "scale-text";
+        textHolder.appendChild(text);
+        text.style.width = $(text.children[0]).width() + 'px';
+        text.style.left = (posPix + 150 - ($(text).width() / 2)) + 'px';
+    }
 }
 
 function buttonSubmitClick() // TODO: Only when all songs have been played!
 {
-	var checks = [];
-	checks = checks.concat(testState.currentStateMap.interfaces[0].options);
-	checks = checks.concat(specification.interfaces.options);
-	var canContinue = true;
-	
-	// Check that the anchor and reference objects are correctly placed
-	if (interfaceContext.checkHiddenAnchor() == false) {return;}
-	if (interfaceContext.checkHiddenReference() == false) {return;}
-	
-	for (var i=0; i<checks.length; i++) {
-		if (checks[i].type == 'check')
-		{
-			switch(checks[i].name) {
-			case 'fragmentPlayed':
-				// Check if all fragments have been played
-				var checkState = interfaceContext.checkAllPlayed();
-				if (checkState == false) {canContinue = false;}
-				break;
-			case  'fragmentFullPlayback':
-				// Check all fragments have been played to their full length
-				var checkState = interfaceContext.checkAllPlayed();
-				if (checkState == false) {canContinue = false;}
-				console.log('NOTE: fragmentFullPlayback not currently implemented, performing check fragmentPlayed instead');
-				break;
-			case 'fragmentMoved':
-				// Check all fragment sliders have been moved.
-				var checkState = interfaceContext.checkAllMoved();
-				if (checkState == false) {canContinue = false;}
-				break;
-			case 'fragmentComments':
-				// Check all fragment sliders have been moved.
-				var checkState = interfaceContext.checkAllCommented();
-				if (checkState == false) {canContinue = false;}
-				break;
-			case 'scalerange':
-                // Check the scale has been used effectively
-                var checkState = interfaceContext.checkScaleRange(checks[i].min,checks[i].max);
-                if (checkState == false) {canContinue = false;}
-				break;
-			default:
-				console.log("WARNING - Check option "+checks[i].check+" is not supported on this interface");
-				break;
-			}
-
-		}
-		if (!canContinue) {break;}
-	}
-	
+    var checks = [];
+    checks = checks.concat(testState.currentStateMap.interfaces[0].options);
+    checks = checks.concat(specification.interfaces.options);
+    var canContinue = true;
+
+    // Check that the anchor and reference objects are correctly placed
+    if (interfaceContext.checkHiddenAnchor() == false) {
+        return;
+    }
+    if (interfaceContext.checkHiddenReference() == false) {
+        return;
+    }
+
+    for (var i = 0; i < checks.length; i++) {
+        if (checks[i].type == 'check') {
+            switch (checks[i].name) {
+                case 'fragmentPlayed':
+                    // Check if all fragments have been played
+                    var checkState = interfaceContext.checkAllPlayed();
+                    if (checkState == false) {
+                        canContinue = false;
+                    }
+                    break;
+                case 'fragmentFullPlayback':
+                    // Check all fragments have been played to their full length
+                    var checkState = interfaceContext.checkAllPlayed();
+                    if (checkState == false) {
+                        canContinue = false;
+                    }
+                    console.log('NOTE: fragmentFullPlayback not currently implemented, performing check fragmentPlayed instead');
+                    break;
+                case 'fragmentMoved':
+                    // Check all fragment sliders have been moved.
+                    var checkState = interfaceContext.checkAllMoved();
+                    if (checkState == false) {
+                        canContinue = false;
+                    }
+                    break;
+                case 'fragmentComments':
+                    // Check all fragment sliders have been moved.
+                    var checkState = interfaceContext.checkAllCommented();
+                    if (checkState == false) {
+                        canContinue = false;
+                    }
+                    break;
+                case 'scalerange':
+                    // Check the scale has been used effectively
+                    var checkState = interfaceContext.checkScaleRange(checks[i].min, checks[i].max);
+                    if (checkState == false) {
+                        canContinue = false;
+                    }
+                    break;
+                default:
+                    console.log("WARNING - Check option " + checks[i].check + " is not supported on this interface");
+                    break;
+            }
+
+        }
+        if (!canContinue) {
+            break;
+        }
+    }
+
     if (canContinue) {
-	    if (audioEngineContext.status == 1) {
-	        var playback = document.getElementById('playback-button');
-	        playback.click();
-	    // This function is called when the submit button is clicked. Will check for any further tests to perform, or any post-test options
-	    } else
-	    {
-	        if (audioEngineContext.timer.testStarted == false)
-	        {
-	            interfaceContext.lightbox.post("Warning",'You have not started the test! Please press start to begin the test!');
-	            return;
-	        }
-	    }
-	    testState.advanceState();
-    } 
+        if (audioEngineContext.status == 1) {
+            var playback = document.getElementById('playback-button');
+            playback.click();
+            // This function is called when the submit button is clicked. Will check for any further tests to perform, or any post-test options
+        } else {
+            if (audioEngineContext.timer.testStarted == false) {
+                interfaceContext.lightbox.post("Warning", 'You have not started the test! Please press start to begin the test!');
+                return;
+            }
+        }
+        testState.advanceState();
+    }
 }
 
-function pageXMLSave(store, pageSpecification)
-{
-	// MANDATORY
-	// Saves a specific test page
-	// You can use this space to add any extra nodes to your XML <audioHolder> saves
-	// Get the current <page> information in store (remember to appendChild your data to it)
-	// pageSpecification is the current page node configuration
-	// To create new XML nodes, use storage.document.createElement();
+function pageXMLSave(store, pageSpecification) {
+    // MANDATORY
+    // Saves a specific test page
+    // You can use this space to add any extra nodes to your XML <audioHolder> saves
+    // Get the current <page> information in store (remember to appendChild your data to it)
+    // pageSpecification is the current page node configuration
+    // To create new XML nodes, use storage.document.createElement();
 }