nicholas@842: /**
nicholas@842:  *  ape.js
nicholas@842:  *  Create the APE interface
nicholas@842:  */
nicholas@842: 
nicholas@842: 
nicholas@842: // Once this is loaded and parsed, begin execution
nicholas@842: loadInterface();
nicholas@842: 
nicholas@842: function loadInterface() {
nicholas@842: 	
nicholas@842: 	// Get the dimensions of the screen available to the page
nicholas@842: 	var width = window.innerWidth;
nicholas@842: 	var height = window.innerHeight;
nicholas@842: 	
nicholas@842: 	// The injection point into the HTML page
nicholas@842: 	interfaceContext.insertPoint = document.getElementById("topLevelBody");
nicholas@842: 	var testContent = document.createElement('div');
nicholas@842: 	
nicholas@842: 	testContent.id = 'testContent';
nicholas@842: 
nicholas@842: 	
nicholas@842: 	// Create APE specific metric functions
nicholas@842: 	audioEngineContext.metric.initialiseTest = function()
nicholas@842: 	{
nicholas@842: 	};
nicholas@842: 	
nicholas@842: 	audioEngineContext.metric.sliderMoved = function()
nicholas@842: 	{
nicholas@842: 		var id = this.data;
nicholas@842: 		this.data = -1;
nicholas@842: 		var position = convSliderPosToRate(id);
nicholas@842:         console.log('slider ' + id + ': '+ position + ' (' + time + ')'); // DEBUG/SAFETY: show position and slider id
nicholas@842: 		if (audioEngineContext.timer.testStarted)
nicholas@842: 		{
nicholas@842: 			audioEngineContext.audioObjects[id].metric.moved(time,position);
nicholas@842: 		}
nicholas@842: 	};
nicholas@842: 	
nicholas@842: 	audioEngineContext.metric.sliderPlayed = function(id)
nicholas@842: 	{
nicholas@842: 		var time = audioEngineContext.timer.getTestTime();
nicholas@842: 		if (audioEngineContext.timer.testStarted)
nicholas@842: 		{
nicholas@842: 			if (this.lastClicked >= 0)
nicholas@842: 			{
nicholas@842: 				audioEngineContext.audioObjects[this.lastClicked].metric.listening(time);
nicholas@842: 			}
nicholas@842: 			this.lastClicked = id;
nicholas@842: 			audioEngineContext.audioObjects[id].metric.listening(time);
nicholas@842: 		}
nicholas@842:         console.log('slider ' + id + ' played (' + time + ')'); // DEBUG/SAFETY: show played slider id
nicholas@842: 	};
nicholas@842: 	
nicholas@842: 	// Bindings for interfaceContext
nicholas@842: 	Interface.prototype.checkAllPlayed = function()
nicholas@842: 	{
nicholas@842: 		hasBeenPlayed = audioEngineContext.checkAllPlayed();
nicholas@842: 		if (hasBeenPlayed.length > 0) // if a fragment has not been played yet
nicholas@842: 	    {
nicholas@842: 	    	str = "";
nicholas@842: 	    	if (hasBeenPlayed.length > 1) {
nicholas@842: 		    	for (var i=0; i<hasBeenPlayed.length; i++) {
nicholas@842: 		    		str = str + hasBeenPlayed[i];
nicholas@842: 		    		if (i < hasBeenPlayed.length-2){
nicholas@842: 		    			str += ", ";
nicholas@842: 		    		} else if (i == hasBeenPlayed.length-2) {
nicholas@842: 		    			str += " or ";
nicholas@842: 		    		}
nicholas@842: 		    	}
nicholas@842: 		    	alert('You have not played fragments ' + str + ' yet. Please listen, rate and comment all samples before submitting.');
nicholas@842: 	       } else {
nicholas@842: 	       		alert('You have not played fragment ' + hasBeenPlayed[0] + ' yet. Please listen, rate and comment all samples before submitting.');
nicholas@842: 	       }
nicholas@842: 	        return false;
nicholas@842: 	    }
nicholas@842: 	    return true;
nicholas@842: 	};
nicholas@842: 	
nicholas@842: 	Interface.prototype.checkAllMoved = function() {
nicholas@842: 		var audioObjs = audioEngineContext.audioObjects;
nicholas@842: 		var state = true;
nicholas@842: 		var strNums = [];
nicholas@842: 		for (var i=0; i<audioObjs.length; i++)
nicholas@842: 		{
n@847: 			if (audioObjs[i].metric.wasMoved == false && audioObjs[i].specification.type != 'outsidereference') {
nicholas@842: 				state = false;
nicholas@842: 				strNums.push(i);
nicholas@842: 			}
nicholas@842: 		}
nicholas@842: 		if (state == false) {
nicholas@842: 			if (strNums.length > 1) {
nicholas@842: 				var str = "";
nicholas@842: 		    	for (var i=0; i<strNums.length; i++) {
nicholas@842: 		    		str = str + strNums[i];
nicholas@842: 		    		if (i < strNums.length-2){
nicholas@842: 		    			str += ", ";
nicholas@842: 		    		} else if (i == strNums.length-2) {
nicholas@842: 		    			str += " or ";
nicholas@842: 		    		}
nicholas@842: 		    	}
nicholas@842: 		    	alert('You have not moved fragments ' + str + ' yet. Please listen, rate and comment all samples before submitting.');
nicholas@842: 	       } else {
nicholas@842: 	       		alert('You have not moved fragment ' + strNums[0] + ' yet. Please listen, rate and comment all samples before submitting.');
nicholas@842: 	       }
nicholas@842: 		}
nicholas@842: 		return state;
nicholas@842: 	};
nicholas@842: 	
nicholas@842: 	Interface.prototype.checkAllCommented = function() {
nicholas@842: 		var audioObjs = audioEngineContext.audioObjects;
nicholas@842: 		var audioHolder = testState.stateMap[testState.stateIndex];
nicholas@842: 		var state = true;
nicholas@842: 		if (audioHolder.elementComments) {
nicholas@842: 			var strNums = [];
nicholas@842: 			for (var i=0; i<audioObjs.length; i++)
nicholas@842: 			{
nicholas@842: 				if (audioObjs[i].commentDOM.trackCommentBox.value.length == 0) {
nicholas@842: 					state = false;
nicholas@842: 					strNums.push(i);
nicholas@842: 				}
nicholas@842: 			}
nicholas@842: 			if (state == false) {
nicholas@842: 				if (strNums.length > 1) {
nicholas@842: 					var str = "";
nicholas@842: 			    	for (var i=0; i<strNums.length; i++) {
nicholas@842: 			    		str = str + strNums[i];
nicholas@842: 			    		if (i < strNums.length-2){
nicholas@842: 			    			str += ", ";
nicholas@842: 			    		} else if (i == strNums.length-2) {
nicholas@842: 			    			str += " or ";
nicholas@842: 			    		}
nicholas@842: 			    	}
nicholas@842: 			    	alert('You have not commented on fragments ' + str + ' yet. Please listen, rate and comment all samples before submitting.');
nicholas@842: 		       } else {
nicholas@842: 		       		alert('You have not commented on fragment ' + strNums[0] + ' yet. Please listen, rate and comment all samples before submitting.');
nicholas@842: 		       }
nicholas@842: 			}
nicholas@842: 		}
nicholas@842: 		return state;
nicholas@842: 	};
nicholas@842: 	
nicholas@842: 	Interface.prototype.checkScaleRange = function()
nicholas@842: 	{
nicholas@842: 		var audioObjs = audioEngineContext.audioObjects;
nicholas@842: 		var audioHolder = testState.stateMap[testState.stateIndex];
nicholas@842: 		var interfaces = audioHolder.interfaces;
nicholas@842: 		
nicholas@842: 		var minRanking = audioObjs[0].interfaceDOM.getValue();
nicholas@842: 		var maxRanking = minRanking;
nicholas@842: 		
nicholas@842: 		var minScale;
nicholas@842: 		var maxScale;
nicholas@842: 		for (var i=0; i<interfaces[0].options.length; i++)
nicholas@842: 		{
nicholas@842: 			if (interfaces[0].options[i].check == "scalerange") {
nicholas@842: 				minScale = interfaces[0].options[i].min;
nicholas@842: 				maxScale = interfaces[0].options[i].max;
nicholas@842: 			}
nicholas@842: 		}
nicholas@842: 		
nicholas@842: 		for (var i=1; i<audioObjs.length; i++){
nicholas@842: 			if (audioObjs[i].specification.type != 'outsidereference') {
nicholas@842: 				var ranking = audioObjs[i].interfaceDOM.getValue();
nicholas@842: 				if (ranking < minRanking) { minRanking = ranking;}
nicholas@842: 				if (ranking > maxRanking) { maxRanking = ranking;}
nicholas@842: 			}
nicholas@842: 		}
nicholas@842: 		if (minRanking > minScale || maxRanking < maxScale) {
nicholas@842: 			alert('Please use the full width of the scale');
nicholas@842: 			return false;
nicholas@842: 		} else {
nicholas@842: 			return true;
nicholas@842: 		}
nicholas@842: 	};
nicholas@842: 	
nicholas@842: 	// Bindings for audioObjects
nicholas@842: 	
nicholas@842: 	// Create the top div for the Title element
nicholas@842: 	var titleAttr = specification.title;
nicholas@842: 	var title = document.createElement('div');
nicholas@842: 	title.className = "title";
nicholas@842: 	title.align = "center";
nicholas@842: 	var titleSpan = document.createElement('span');
nicholas@842: 	
nicholas@842: 	// Set title to that defined in XML, else set to default
nicholas@842: 	if (titleAttr != undefined) {
nicholas@842: 		titleSpan.textContent = titleAttr;
nicholas@842: 	} else {
nicholas@842: 		titleSpan.textContent =  'Listening test';
nicholas@842: 	}
nicholas@842: 	// Insert the titleSpan element into the title div element.
nicholas@842: 	title.appendChild(titleSpan);
nicholas@842: 	
nicholas@842: 	var pagetitle = document.createElement('div');
nicholas@842: 	pagetitle.className = "pageTitle";
nicholas@842: 	pagetitle.align = "center";
nicholas@842: 	var titleSpan = document.createElement('span');
nicholas@842: 	titleSpan.id = "pageTitle";
nicholas@842: 	pagetitle.appendChild(titleSpan);
nicholas@842: 	
nicholas@842: 	// Create Interface buttons!
nicholas@842: 	var interfaceButtons = document.createElement('div');
nicholas@842: 	interfaceButtons.id = 'interface-buttons';
nicholas@842: 	
nicholas@842: 	// Create playback start/stop points
nicholas@842: 	var playback = document.createElement("button");
nicholas@842: 	playback.innerHTML = 'Stop';
nicholas@842: 	playback.id = 'playback-button';
nicholas@842: 	// onclick function. Check if it is playing or not, call the correct function in the
nicholas@842: 	// audioEngine, change the button text to reflect the next state.
nicholas@842: 	playback.onclick = function() {
nicholas@842: 		if (audioEngineContext.status == 1) {
nicholas@842: 			audioEngineContext.stop();
nicholas@842: 			this.innerHTML = 'Stop';
nicholas@842:             var time = audioEngineContext.timer.getTestTime();
nicholas@842:             console.log('Stopped at ' + time); // DEBUG/SAFETY
nicholas@842: 		}
nicholas@842: 	};
nicholas@842: 	// Create Submit (save) button
nicholas@842: 	var submit = document.createElement("button");
nicholas@842: 	submit.innerHTML = 'Submit';
nicholas@842: 	submit.onclick = buttonSubmitClick;
nicholas@842: 	submit.id = 'submit-button';
nicholas@842: 	// Append the interface buttons into the interfaceButtons object.
nicholas@842: 	interfaceButtons.appendChild(playback);
nicholas@842: 	interfaceButtons.appendChild(submit);
nicholas@842: 	
nicholas@842: 	// Now create the slider and HTML5 canvas boxes
nicholas@842: 	
nicholas@842: 	// Create the div box to center align
nicholas@842: 	var sliderBox = document.createElement('div');
nicholas@842: 	sliderBox.className = 'sliderCanvasDiv';
nicholas@842: 	sliderBox.id = 'sliderCanvasHolder';
nicholas@842: 	
nicholas@842: 	// Create the slider box to hold the slider elements
nicholas@842: 	var canvas = document.createElement('div');
nicholas@842: 	canvas.id = 'slider';
nicholas@842: 	canvas.align = "left";
nicholas@842: 	canvas.addEventListener('dragover',function(event){
nicholas@842: 		event.preventDefault();
nicholas@842: 		return false;
nicholas@842: 	},false);
nicholas@842: 	var sliderMargin = document.createAttribute('marginsize');
nicholas@842: 	sliderMargin.nodeValue = 42; // Set default margins to 42px either side
nicholas@842: 	// Must have a known EXACT width, as this is used later to determine the ratings
nicholas@842: 	var w = (Number(sliderMargin.nodeValue)+8)*2;
nicholas@842: 	canvas.style.width = width - w +"px";
nicholas@842: 	canvas.style.marginLeft = sliderMargin.nodeValue +'px';
nicholas@842: 	canvas.setAttributeNode(sliderMargin);
nicholas@842: 	sliderBox.appendChild(canvas);
nicholas@842: 	
nicholas@842: 	// Create the div to hold any scale objects
nicholas@842: 	var scale = document.createElement('div');
nicholas@842: 	scale.className = 'sliderScale';
nicholas@842: 	scale.id = 'sliderScaleHolder';
nicholas@842: 	scale.align = 'left';
nicholas@842: 	sliderBox.appendChild(scale);
nicholas@842: 	
nicholas@842: 	// Global parent for the comment boxes on the page
nicholas@842: 	var feedbackHolder = document.createElement('div');
nicholas@842: 	feedbackHolder.id = 'feedbackHolder';
nicholas@842: 	
nicholas@842: 	testContent.style.zIndex = 1;
nicholas@842: 	interfaceContext.insertPoint.innerHTML = null; // Clear the current schema
nicholas@842: 	
nicholas@842: 	// Inject into HTML
nicholas@842: 	testContent.appendChild(title); // Insert the title
nicholas@842: 	testContent.appendChild(pagetitle);
nicholas@842: 	testContent.appendChild(interfaceButtons);
nicholas@842: 	testContent.appendChild(sliderBox);
nicholas@842: 	testContent.appendChild(feedbackHolder);
nicholas@842: 	interfaceContext.insertPoint.appendChild(testContent);
nicholas@842: 
nicholas@842: 	// Load the full interface
nicholas@842: 	testState.initialise();
nicholas@842: 	testState.advanceState();
nicholas@842: 	
nicholas@842: }
nicholas@842: 
nicholas@842: function loadTest(audioHolderObject)
nicholas@842: {
nicholas@842: 	
nicholas@842: 	// Reset audioEngineContext.Metric globals for new test
nicholas@842: 	audioEngineContext.newTestPage();
nicholas@842: 	
nicholas@842: 	var id = audioHolderObject.id;
nicholas@842: 	
nicholas@842: 	var feedbackHolder = document.getElementById('feedbackHolder');
nicholas@842: 	var canvas = document.getElementById('slider');
nicholas@842: 	feedbackHolder.innerHTML = null;
nicholas@842: 	canvas.innerHTML = null;
nicholas@842: 	
nicholas@842: 	var interfaceObj = audioHolderObject.interfaces;
nicholas@842: 	for (var k=0; k<interfaceObj.length; k++) {
nicholas@842: 		for (var i=0; i<interfaceObj[k].options.length; i++)
nicholas@842: 		{
nicholas@842: 			if (interfaceObj[k].options[i].type == 'option' && interfaceObj[k].options[i].name == 'playhead')
nicholas@842: 			{
nicholas@842: 				var playbackHolder = document.getElementById('playback-holder');
nicholas@842: 				if (playbackHolder == null)
nicholas@842: 				{
nicholas@842: 					playbackHolder = document.createElement('div');
nicholas@842: 					playbackHolder.style.width = "100%";
nicholas@842: 					playbackHolder.align = 'center';
nicholas@842: 					playbackHolder.appendChild(interfaceContext.playhead.object);
nicholas@842: 					feedbackHolder.appendChild(playbackHolder);
nicholas@842: 				}
nicholas@842: 			} else if (interfaceObj[k].options[i].type == 'option' && interfaceObj[k].options[i].name == 'page-count')
nicholas@842: 			{
nicholas@842: 				var pagecountHolder = document.getElementById('page-count');
nicholas@842: 				if (pagecountHolder == null)
nicholas@842: 				{
nicholas@842: 					pagecountHolder = document.createElement('div');
nicholas@842: 					pagecountHolder.id = 'page-count';
nicholas@842: 				}
nicholas@842: 				pagecountHolder.innerHTML = '<span>Test '+(audioHolderObject.presentedId+1)+' of '+specification.audioHolders.length+'</span>';
nicholas@842: 				var inject = document.getElementById('interface-buttons');
nicholas@842: 				inject.appendChild(pagecountHolder);
nicholas@842: 			}
nicholas@842: 		}
nicholas@842: 	}
nicholas@842: 	// Setup question title
nicholas@842: 	
nicholas@842: 	var commentBoxPrefix = "Comment on track";
nicholas@842: 	if (interfaceObj.length != 0) {
nicholas@842: 		interfaceObj = interfaceObj[0];
nicholas@842: 		var titleNode = interfaceObj.title;
nicholas@842: 		if (titleNode != undefined)
nicholas@842: 		{
nicholas@842: 			document.getElementById('pageTitle').textContent = titleNode;
nicholas@842: 		}
nicholas@842: 		var positionScale = canvas.style.width.substr(0,canvas.style.width.length-2);
nicholas@842: 		var offset = Number(document.getElementById('slider').attributes['marginsize'].value);
nicholas@842: 		var scale = document.getElementById('sliderScaleHolder');
nicholas@842: 		scale.innerHTML = null;
nicholas@842: 		$(interfaceObj.scale).each(function(index,scaleObj){
nicholas@842: 			var value = document.createAttribute('value');
nicholas@842: 			var position = Number(scaleObj[0])*0.01;
nicholas@842: 			value.nodeValue = position;
nicholas@842: 			var pixelPosition = (position*positionScale)+offset;
nicholas@842: 			var scaleDOM = document.createElement('span');
nicholas@842: 			scaleDOM.textContent = scaleObj[1];
nicholas@842: 			scale.appendChild(scaleDOM);
nicholas@842: 			scaleDOM.style.left = Math.floor((pixelPosition-($(scaleDOM).width()/2)))+'px';
nicholas@842: 			scaleDOM.setAttributeNode(value);
nicholas@842: 		});
nicholas@842: 		
nicholas@842: 		if (interfaceObj.commentBoxPrefix != undefined) {
nicholas@842: 			commentBoxPrefix = interfaceObj.commentBoxPrefix;
nicholas@842: 		}
nicholas@842: 	}
nicholas@842: 
nicholas@842: 	/// CHECK FOR SAMPLE RATE COMPATIBILITY
nicholas@842: 	if (audioHolderObject.sampleRate != undefined) {
nicholas@842: 		if (Number(audioHolderObject.sampleRate) != audioContext.sampleRate) {
nicholas@842: 			var errStr = 'Sample rates do not match! Requested '+Number(audioHolderObject.sampleRate)+', got '+audioContext.sampleRate+'. Please set the sample rate to match before completing this test.';
nicholas@842: 			alert(errStr);
nicholas@842: 			return;
nicholas@842: 		}
nicholas@842: 	}
nicholas@842: 	
nicholas@842: 	var commentShow = audioHolderObject.elementComments;
nicholas@842: 	
nicholas@842: 	var loopPlayback = audioHolderObject.loop;
nicholas@842: 
nicholas@842: 	audioEngineContext.loopPlayback = loopPlayback;
nicholas@842: 	// Create AudioEngine bindings for playback
nicholas@842: 	audioEngineContext.selectedTrack = function(id) {
nicholas@842: 		console.log('Deprecated');
nicholas@842: 	};
nicholas@842: 	
nicholas@842: 	currentTestHolder = document.createElement('audioHolder');
nicholas@842: 	currentTestHolder.id = audioHolderObject.id;
nicholas@842: 	currentTestHolder.repeatCount = audioHolderObject.repeatCount;
nicholas@842: 	
nicholas@842: 	// Delete any previous audioObjects associated with the audioEngine
nicholas@842: 	audioEngineContext.audioObjects = [];
nicholas@842: 	interfaceContext.deleteCommentBoxes();
nicholas@842: 	interfaceContext.deleteCommentQuestions();
nicholas@842: 	
nicholas@842: 	// Find all the audioElements from the audioHolder
nicholas@842: 	$(audioHolderObject.audioElements).each(function(index,element){
nicholas@842: 		// Find URL of track
nicholas@842: 		// In this jQuery loop, variable 'this' holds the current audioElement.
nicholas@842: 		
nicholas@842: 		// Now load each audio sample. First create the new track by passing the full URL
nicholas@842: 		var trackURL = audioHolderObject.hostURL + element.url;
nicholas@842: 		var audioObject = audioEngineContext.newTrack(element);
nicholas@842: 		
nicholas@842: 		var node = interfaceContext.createCommentBox(audioObject);
nicholas@842: 		
nicholas@842: 		// Create a slider per track
nicholas@842: 		audioObject.interfaceDOM = new sliderObject(audioObject);
nicholas@842: 		
nicholas@842: 		// Distribute it randomnly
nicholas@842: 		var w = window.innerWidth - (offset+8)*2;
nicholas@842: 		w = Math.random()*w;
nicholas@842: 		w = Math.floor(w+(offset+8));
nicholas@842: 		audioObject.interfaceDOM.trackSliderObj.style.left = w+'px';
nicholas@842: 		
nicholas@842: 		canvas.appendChild(audioObject.interfaceDOM.trackSliderObj);
nicholas@842: 		audioObject.metric.initialised(convSliderPosToRate(audioObject.interfaceDOM.trackSliderObj));
nicholas@842:         
nicholas@842: 	});
nicholas@842: 	if (commentShow) {
nicholas@842: 		interfaceContext.showCommentBoxes(feedbackHolder,true);
nicholas@842: 	}
nicholas@842: 	
nicholas@842: 	$(audioHolderObject.commentQuestions).each(function(index,element) {
nicholas@842: 		var node = interfaceContext.createCommentQuestion(element);
nicholas@842: 		feedbackHolder.appendChild(node.holder);
nicholas@842: 	});
nicholas@842: 	
nicholas@842: 	// Construct outside reference;
nicholas@842: 	if (audioHolderObject.outsideReference != null) {
nicholas@842: 		var outsideReferenceHolder = document.createElement('div');
nicholas@842: 		outsideReferenceHolder.id = 'outside-reference';
nicholas@842: 		outsideReferenceHolderspan = document.createElement('span');
nicholas@842: 		outsideReferenceHolderspan.textContent = 'Reference';
nicholas@842: 		outsideReferenceHolder.appendChild(outsideReferenceHolderspan);
nicholas@842: 		
nicholas@842: 		var audioObject = audioEngineContext.newTrack(audioHolderObject.outsideReference);
nicholas@842: 		
nicholas@842: 		outsideReferenceHolder.onclick = function()
nicholas@842: 		{
nicholas@842: 			audioEngineContext.play(audioEngineContext.audioObjects.length-1);
nicholas@842: 			$('.track-slider').removeClass('track-slider-playing');
nicholas@842:             $('.comment-div').removeClass('comment-box-playing');
nicholas@842:             if (event.srcElement.nodeName == 'DIV') {
nicholas@842:             	$(event.srcElement).addClass('track-slider-playing');
nicholas@842:             } else {
nicholas@842:             	$(event.srcElement.parentElement).addClass('track-slider-playing');
nicholas@842:             }
nicholas@842: 		};
nicholas@842: 		
nicholas@842: 		document.getElementById('interface-buttons').appendChild(outsideReferenceHolder);
nicholas@842: 	}
nicholas@842: 	
nicholas@842: 	
nicholas@842: 	//testWaitIndicator();
nicholas@842: }
nicholas@842: 
nicholas@842: function sliderObject(audioObject) {
nicholas@842: 	// Create a new slider object;
nicholas@842: 	this.parent = audioObject;
nicholas@842: 	this.trackSliderObj = document.createElement('div');
nicholas@842: 	this.trackSliderObj.className = 'track-slider track-slider-disabled';
nicholas@842: 	this.trackSliderObj.id = 'track-slider-'+audioObject.id;
nicholas@842: 
nicholas@842: 	this.trackSliderObj.setAttribute('trackIndex',audioObject.id);
nicholas@842: 	this.trackSliderObj.innerHTML = '<span>'+audioObject.id+'</span>';
nicholas@842: 	this.trackSliderObj.draggable = true;
nicholas@842: 	this.trackSliderObj.ondragend = dragEnd;
nicholas@842: 
nicholas@842: 	// Onclick, switch playback to that track
nicholas@842: 	this.trackSliderObj.onclick = function() {
nicholas@842: 		// Start the test on first click, that way timings are more accurate.
nicholas@842: 		audioEngineContext.play();
nicholas@842: 		if (audioEngineContext.audioObjectsReady) {
nicholas@842: 			// Cannot continue to issue play command until audioObjects reported as ready!
nicholas@842: 			// Get the track ID from the object ID
nicholas@842: 			var element;
nicholas@842: 			if (event.srcElement.nodeName == "SPAN") {
nicholas@842: 				element = event.srcElement.parentNode;
nicholas@842: 			} else {
nicholas@842: 				element = event.srcElement;
nicholas@842: 			}
nicholas@842: 			var id = Number(element.attributes['trackIndex'].value);
nicholas@842: 			//audioEngineContext.metric.sliderPlayed(id);
nicholas@842: 			audioEngineContext.play(id);
nicholas@842:             // Currently playing track red, rest green
nicholas@842:             
nicholas@842:             //document.getElementById('track-slider-'+index).style.backgroundColor = "#FF0000";
nicholas@842:             $('.track-slider').removeClass('track-slider-playing');
nicholas@842:             $(element).addClass('track-slider-playing');
nicholas@842:             $('.comment-div').removeClass('comment-box-playing');
nicholas@842:             $('#comment-div-'+id).addClass('comment-box-playing');
nicholas@842:             var outsideReference = document.getElementById('outside-reference');
nicholas@842:             if (outsideReference != undefined)
nicholas@842:             $(outsideReference).removeClass('track-slider-playing');
nicholas@842: 		}
nicholas@842: 	};
nicholas@842: 	
nicholas@842: 	this.enable = function() {
nicholas@842: 		if (this.parent.state == 1)
nicholas@842: 		{
nicholas@842: 			$(this.trackSliderObj).removeClass('track-slider-disabled');
nicholas@842: 		}
nicholas@842: 	};
nicholas@842: 	
nicholas@842: 	this.exportXMLDOM = function(audioObject) {
nicholas@842: 		// Called by the audioObject holding this element. Must be present
nicholas@842: 		var node = document.createElement('value');
nicholas@842: 		node.textContent = convSliderPosToRate(this.trackSliderObj);
nicholas@842: 		return node;
nicholas@842: 	};
nicholas@842: 	this.getValue = function() {
nicholas@842: 		return convSliderPosToRate(this.trackSliderObj);
nicholas@842: 	};
nicholas@842: }
nicholas@842: 
nicholas@842: function dragEnd(ev) {
nicholas@842: 	// Function call when a div has been dropped
nicholas@842: 	var slider = document.getElementById('slider');
nicholas@842: 	var marginSize = Number(slider.attributes['marginsize'].value);
nicholas@842: 	var w = slider.style.width;
nicholas@842: 	w = Number(w.substr(0,w.length-2));
nicholas@842: 	var x = ev.x;
n@849: 	x += Math.abs(ev.view.screenLeft);
n@849: 	x = x % ev.view.outerWidth;
nicholas@842: 	if (x >= marginSize && x < w+marginSize) {
nicholas@842: 		this.style.left = (x)+'px';
nicholas@842: 	} else {
nicholas@842: 		if (x<marginSize) {
nicholas@842: 			this.style.left = marginSize+'px';
nicholas@842: 		} else {
nicholas@842: 			this.style.left = (w+marginSize) + 'px';
nicholas@842: 		}
nicholas@842: 	}
nicholas@842: 	var time = audioEngineContext.timer.getTestTime();
nicholas@842: 	var id = Number(ev.srcElement.getAttribute('trackindex'));
nicholas@842: 	audioEngineContext.audioObjects[id].metric.moved(time,convSliderPosToRate(ev.srcElement));
nicholas@842: 	console.log('slider '+id+' moved to '+convSliderPosToRate(ev.srcElement)+' ('+time+')');
nicholas@842: }
nicholas@842: 
n@849: function buttonSubmitClick()
nicholas@842: {
nicholas@842: 	var checks = testState.currentStateMap[testState.currentIndex].interfaces[0].options;
nicholas@842: 	var canContinue = true;
nicholas@842: 	
nicholas@842: 	// Check that the anchor and reference objects are correctly placed
nicholas@842: 	if (interfaceContext.checkHiddenAnchor() == false) {return;}
nicholas@842: 	if (interfaceContext.checkHiddenReference() == false) {return;}
nicholas@842: 	
nicholas@842: 	for (var i=0; i<checks.length; i++) {
nicholas@842: 		if (checks[i].type == 'check')
nicholas@842: 		{
nicholas@842: 			switch(checks[i].check) {
nicholas@842: 			case 'fragmentPlayed':
nicholas@842: 				// Check if all fragments have been played
nicholas@842: 				var checkState = interfaceContext.checkAllPlayed();
nicholas@842: 				if (checkState == false) {canContinue = false;}
nicholas@842: 				break;
nicholas@842: 			case  'fragmentFullPlayback':
nicholas@842: 				// Check all fragments have been played to their full length
nicholas@842: 				var checkState = interfaceContext.checkAllPlayed();
nicholas@842: 				if (checkState == false) {canContinue = false;}
nicholas@842: 				console.log('NOTE: fragmentFullPlayback not currently implemented, performing check fragmentPlayed instead');
nicholas@842: 				break;
nicholas@842: 			case 'fragmentMoved':
nicholas@842: 				// Check all fragment sliders have been moved.
nicholas@842: 				var checkState = interfaceContext.checkAllMoved();
nicholas@842: 				if (checkState == false) {canContinue = false;}
nicholas@842: 				break;
nicholas@842: 			case 'fragmentComments':
nicholas@842: 				// Check all fragment sliders have been moved.
nicholas@842: 				var checkState = interfaceContext.checkAllCommented();
nicholas@842: 				if (checkState == false) {canContinue = false;}
nicholas@842: 				break;
nicholas@842: 			case 'scalerange':
nicholas@842: 				// Check the scale is used to its full width outlined by the node
nicholas@842: 				var checkState = interfaceContext.checkScaleRange();
nicholas@842: 				if (checkState == false) {canContinue = false;}
nicholas@842: 				break;
nicholas@842: 			}
nicholas@842: 
nicholas@842: 		}
nicholas@842: 		if (!canContinue) {break;}
nicholas@842: 	}
nicholas@842:    
nicholas@842:     if (canContinue) {
nicholas@842: 	    if (audioEngineContext.status == 1) {
nicholas@842: 	        var playback = document.getElementById('playback-button');
nicholas@842: 	        playback.click();
nicholas@842: 	    // This function is called when the submit button is clicked. Will check for any further tests to perform, or any post-test options
nicholas@842: 	    } else
nicholas@842: 	    {
nicholas@842: 	        if (audioEngineContext.timer.testStarted == false)
nicholas@842: 	        {
nicholas@842: 	            alert('You have not started the test! Please press start to begin the test!');
nicholas@842: 	            return;
nicholas@842: 	        }
nicholas@842: 	    }
nicholas@842: 	    testState.advanceState();
nicholas@842:     } 
nicholas@842: }
nicholas@842: 
nicholas@842: function convSliderPosToRate(slider)
nicholas@842: {
nicholas@842: 	var w = document.getElementById('slider').style.width;
nicholas@842: 	var marginsize = Number(document.getElementById('slider').attributes['marginsize'].value);
nicholas@842: 	var maxPix = w.substr(0,w.length-2);
nicholas@842: 	var pix = slider.style.left;
nicholas@842: 	pix = pix.substr(0,pix.length-2);
nicholas@842: 	var rate = (pix-marginsize)/maxPix;
nicholas@842: 	return rate;
nicholas@842: }
nicholas@842: 
nicholas@842: function resizeWindow(event){
nicholas@842: 	// Function called when the window has been resized.
nicholas@842: 	// MANDATORY FUNCTION
nicholas@842: 	
nicholas@842: 	// Store the slider marker values
nicholas@842: 	var holdValues = [];
nicholas@842: 	$(".track-slider").each(function(index,sliderObj){
nicholas@842: 		holdValues.push(convSliderPosToRate(sliderObj));
nicholas@842: 	});
nicholas@842: 	
nicholas@842: 	var width = event.target.innerWidth;
nicholas@842: 	var canvas = document.getElementById('sliderCanvasHolder');
nicholas@842: 	var sliderDiv = canvas.children[0];
nicholas@842: 	var sliderScaleDiv = canvas.children[1];
nicholas@842: 	var marginsize = Number(sliderDiv.attributes['marginsize'].value);
nicholas@842: 	var w = (marginsize+8)*2;
nicholas@842: 	sliderDiv.style.width = width - w + 'px';
nicholas@842: 	var width = width - w;
nicholas@842: 	// Move sliders into new position
nicholas@842: 	$(".track-slider").each(function(index,sliderObj){
nicholas@842: 		var pos = holdValues[index];
nicholas@842: 		var pix = pos * width;
nicholas@842: 		sliderObj.style.left = pix+marginsize+'px';
nicholas@842: 	});
nicholas@842: 	
nicholas@842: 	// Move scale labels
nicholas@842: 	$(sliderScaleDiv.children).each(function(index,scaleObj){
nicholas@842: 		var position = Number(scaleObj.attributes['value'].value);
nicholas@842: 		var pixelPosition = (position*width)+marginsize;
nicholas@842: 		scaleObj.style.left = Math.floor((pixelPosition-($(scaleObj).width()/2)))+'px';
nicholas@842: 	});
nicholas@842: }
nicholas@842: 
nicholas@842: function pageXMLSave(store, testXML)
nicholas@842: {
nicholas@842: 	// Saves a specific test page
nicholas@842: 	var xmlDoc = store;
nicholas@842: 	// Check if any session wide metrics are enabled
nicholas@842: 	
nicholas@842: 	var commentShow = testXML.elementComments;
nicholas@842: 	
nicholas@842: 	var metric = document.createElement('metric');
nicholas@842: 	if (audioEngineContext.metric.enableTestTimer)
nicholas@842: 	{
nicholas@842: 		var testTime = document.createElement('metricResult');
nicholas@842: 		testTime.id = 'testTime';
nicholas@842: 		testTime.textContent = audioEngineContext.timer.testDuration;
nicholas@842: 		metric.appendChild(testTime);
nicholas@842: 	}
nicholas@842: 	xmlDoc.appendChild(metric);
nicholas@842: 	var audioObjects = audioEngineContext.audioObjects;
nicholas@842: 	for (var i=0; i<audioObjects.length; i++) 
nicholas@842: 	{
nicholas@842: 		var audioElement = audioEngineContext.audioObjects[i].exportXMLDOM();
nicholas@842: 		audioElement.setAttribute('presentedId',i);
nicholas@842: 		xmlDoc.appendChild(audioElement);
nicholas@842: 	}
nicholas@842: 	
nicholas@842: 	$(interfaceContext.commentQuestions).each(function(index,element){
nicholas@842: 		var node = element.exportXMLDOM();
nicholas@842: 		xmlDoc.appendChild(node);
nicholas@842: 	});
nicholas@842: 	store = xmlDoc;
nicholas@842: }