nicholas@1: /**
nicholas@1:  * core.js
nicholas@1:  * 
nicholas@1:  * Main script to run, calls all other core functions and manages loading/store to backend.
nicholas@1:  * Also contains all global variables.
nicholas@1:  */
nicholas@1: 
nicholas@1: /* create the web audio API context and store in audioContext*/
n@33: var audioContext; // Hold the browser web audio API
n@33: var projectXML; // Hold the parsed setup XML
n@453: var schemaXSD; // Hold the parsed schema XSD
n@181: var specification;
n@182: var interfaceContext;
n@453: var storage;
nicholas@116: var popup; // Hold the interfacePopup object
nicholas@129: var testState;
n@45: var currentTrackOrder = []; // Hold the current XML tracks in their (randomised) order
n@33: var audioEngineContext; // The custome AudioEngine object
n@33: var projectReturn; // Hold the URL for the return
n@153: 
nicholas@1: 
n@57: // Add a prototype to the bufferSourceNode to reference to the audioObject holding it
n@57: AudioBufferSourceNode.prototype.owner = undefined;
n@408: // Add a prototype to the bufferNode to hold the desired LINEAR gain
n@448: AudioBuffer.prototype.playbackGain = undefined;
n@408: // Add a prototype to the bufferNode to hold the computed LUFS loudness
n@408: AudioBuffer.prototype.lufs = undefined;
n@57: 
nicholas@1: window.onload = function() {
nicholas@1: 	// Function called once the browser has loaded all files.
nicholas@1: 	// This should perform any initial commands such as structure / loading documents
nicholas@1: 	
nicholas@1: 	// Create a web audio API context
nicholas@21: 	// Fixed for cross-browser support
nicholas@21: 	var AudioContext = window.AudioContext || window.webkitAudioContext;
nicholas@7: 	audioContext = new AudioContext;
nicholas@1: 	
nicholas@129: 	// Create test state
nicholas@129: 	testState = new stateMachine();
nicholas@129: 	
nicholas@116: 	// Create the popup interface object
nicholas@116: 	popup = new interfacePopup();
n@181: 	
n@181: 	// Create the specification object
n@181: 	specification = new Specification();
n@182: 	
n@182: 	// Create the interface object
n@182: 	interfaceContext = new Interface(specification);
n@453: 	
n@453: 	// Create the storage object
n@453: 	storage = new Storage();
n@379: 	// Define window callbacks for interface
n@379: 	window.onresize = function(event){interfaceContext.resizeWindow(event);};
n@16: };
nicholas@1: 
n@377: function loadProjectSpec(url) {
n@377: 	// Load the project document from the given URL, decode the XML and instruct audioEngine to get audio data
n@377: 	// If url is null, request client to upload project XML document
n@453: 	var xmlhttp = new XMLHttpRequest();
n@453: 	xmlhttp.open("GET",'test-schema.xsd',true);
n@453: 	xmlhttp.onload = function()
n@453: 	{
n@453: 		schemaXSD = xmlhttp.response;
n@453: 		var parse = new DOMParser();
n@453: 		specification.schema = parse.parseFromString(xmlhttp.response,'text/xml');
n@453: 		var r = new XMLHttpRequest();
n@453: 		r.open('GET',url,true);
n@453: 		r.onload = function() {
n@453: 			loadProjectSpecCallback(r.response);
n@453: 		};
n@453: 		r.send();
n@377: 	};
n@453: 	xmlhttp.send();
n@377: };
n@377: 
n@377: function loadProjectSpecCallback(response) {
n@377: 	// Function called after asynchronous download of XML project specification
n@377: 	//var decode = $.parseXML(response);
n@377: 	//projectXML = $(decode);
n@377: 	
n@453: 	// First perform XML schema validation
n@453: 	var Module = {
n@453: 		xml: response,
n@453: 		schema: schemaXSD,
n@453: 		arguments:["--noout", "--schema", 'test-schema.xsd','document.xml']
n@453: 	};
n@453: 	
n@453: 	var xmllint = validateXML(Module);
n@453: 	console.log(xmllint);
n@453: 	if(xmllint != 'document.xml validates\n')
n@453: 	{
n@453: 		document.getElementsByTagName('body')[0].innerHTML = null;
n@453: 		var msg = document.createElement("h3");
n@453: 		msg.textContent = "FATAL ERROR";
n@453: 		var span = document.createElement("h4");
n@453: 		span.textContent = "The XML validator returned the following errors when decoding your XML file";
n@453: 		document.getElementsByTagName('body')[0].appendChild(msg);
n@453: 		document.getElementsByTagName('body')[0].appendChild(span);
n@453: 		xmllint = xmllint.split('\n');
n@453: 		for (var i in xmllint)
n@453: 		{
n@453: 			document.getElementsByTagName('body')[0].appendChild(document.createElement('br'));
n@453: 			var span = document.createElement("span");
n@453: 			span.textContent = xmllint[i];
n@453: 			document.getElementsByTagName('body')[0].appendChild(span);
n@453: 		}
n@453: 		return;
n@453: 	}
n@453: 	
n@377: 	var parse = new DOMParser();
n@377: 	projectXML = parse.parseFromString(response,'text/xml');
n@430: 	var errorNode = projectXML.getElementsByTagName('parsererror');
n@430: 	if (errorNode.length >= 1)
n@430: 	{
n@430: 		var msg = document.createElement("h3");
n@430: 		msg.textContent = "FATAL ERROR";
n@430: 		var span = document.createElement("span");
n@430: 		span.textContent = "The XML parser returned the following errors when decoding your XML file";
n@433: 		document.getElementsByTagName('body')[0].innerHTML = null;
n@430: 		document.getElementsByTagName('body')[0].appendChild(msg);
n@430: 		document.getElementsByTagName('body')[0].appendChild(span);
n@430: 		document.getElementsByTagName('body')[0].appendChild(errorNode[0]);
n@430: 		return;
n@430: 	}
n@377: 	
n@377: 	// Build the specification
n@377: 	specification.decode(projectXML);
n@453: 	storage.initialise();
n@468: 	/// CHECK FOR SAMPLE RATE COMPATIBILITY
n@468: 	if (specification.sampleRate != undefined) {
n@468: 		if (Number(specification.sampleRate) != audioContext.sampleRate) {
n@468: 			var errStr = 'Sample rates do not match! Requested '+Number(specification.sampleRate)+', got '+audioContext.sampleRate+'. Please set the sample rate to match before completing this test.';
n@468: 			alert(errStr);
n@468: 			return;
n@468: 		}
n@468: 	}
n@377: 	
n@377: 	// Detect the interface to use and load the relevant javascripts.
n@377: 	var interfaceJS = document.createElement('script');
n@377: 	interfaceJS.setAttribute("type","text/javascript");
n@458: 	switch(specification.interface)
n@458: 	{
n@458: 		case "APE":
n@470: 		interfaceJS.setAttribute("src","interfaces/ape.js");
n@377: 		
n@377: 		// APE comes with a css file
n@377: 		var css = document.createElement('link');
n@377: 		css.rel = 'stylesheet';
n@377: 		css.type = 'text/css';
n@470: 		css.href = 'interfaces/ape.css';
n@377: 		
n@377: 		document.getElementsByTagName("head")[0].appendChild(css);
n@458: 		break;
n@458: 		
n@458: 		case "MUSHRA":
n@470: 		interfaceJS.setAttribute("src","interfaces/mushra.js");
n@377: 		
n@377: 		// MUSHRA comes with a css file
n@377: 		var css = document.createElement('link');
n@377: 		css.rel = 'stylesheet';
n@377: 		css.type = 'text/css';
n@470: 		css.href = 'interfaces/mushra.css';
n@377: 		
n@377: 		document.getElementsByTagName("head")[0].appendChild(css);
n@458: 		break;
n@458: 		
n@458: 		case "AB":
n@470: 		interfaceJS.setAttribute("src","interfaces/AB.js");
n@458: 		
n@458: 		// AB comes with a css file
n@458: 		var css = document.createElement('link');
n@458: 		css.rel = 'stylesheet';
n@458: 		css.type = 'text/css';
n@470: 		css.href = 'interfaces/AB.css';
n@458: 		
n@458: 		document.getElementsByTagName("head")[0].appendChild(css);
n@472: 		case "ABC":
n@472: 		// Above enumerate to horizontal sliders
n@472: 		interfaceJS.setAttribute("src","interfaces/horizontal-sliders.js");
n@472: 		
n@472: 		// horizontal-sliders comes with a css file
n@472: 		var css = document.createElement('link');
n@472: 		css.rel = 'stylesheet';
n@472: 		css.type = 'text/css';
n@472: 		css.href = 'interfaces/horizontal-sliders.css';
n@472: 		
n@472: 		document.getElementsByTagName("head")[0].appendChild(css);
n@377: 	}
n@377: 	document.getElementsByTagName("head")[0].appendChild(interfaceJS);
n@377: 	
n@379: 	// Create the audio engine object
n@379: 	audioEngineContext = new AudioEngine(specification);
n@379: 	
n@453: 	$(specification.pages).each(function(index,elem){
n@379: 		$(elem.audioElements).each(function(i,audioElem){
n@453: 			var URL = elem.hostURL + audioElem.url;
n@379: 			var buffer = null;
n@379: 			for (var i=0; i<audioEngineContext.buffers.length; i++)
n@379: 			{
n@379: 				if (URL == audioEngineContext.buffers[i].url)
n@379: 				{
n@379: 					buffer = audioEngineContext.buffers[i];
n@379: 					break;
n@379: 				}
n@379: 			}
n@379: 			if (buffer == null)
n@379: 			{
n@408: 				buffer = new audioEngineContext.bufferObj();
n@408: 				buffer.getMedia(URL);
n@379: 				audioEngineContext.buffers.push(buffer);
n@379: 			}
n@379: 		});
n@379: 	});
n@377: }
n@377: 
n@377: function createProjectSave(destURL) {
n@377: 	// Save the data from interface into XML and send to destURL
n@377: 	// If destURL is null then download XML in client
n@377: 	// Now time to render file locally
n@377: 	var xmlDoc = interfaceXMLSave();
n@377: 	var parent = document.createElement("div");
n@377: 	parent.appendChild(xmlDoc);
n@377: 	var file = [parent.innerHTML];
n@377: 	if (destURL == "null" || destURL == undefined) {
n@377: 		var bb = new Blob(file,{type : 'application/xml'});
n@377: 		var dnlk = window.URL.createObjectURL(bb);
n@377: 		var a = document.createElement("a");
n@377: 		a.hidden = '';
n@377: 		a.href = dnlk;
n@377: 		a.download = "save.xml";
n@377: 		a.textContent = "Save File";
n@377: 		
n@377: 		popup.showPopup();
n@461: 		popup.popupContent.innerHTML = "</span>Please save the file below to give to your test supervisor</span><br>";
n@377: 		popup.popupContent.appendChild(a);
n@377: 	} else {
n@377: 		var xmlhttp = new XMLHttpRequest;
n@377: 		xmlhttp.open("POST",destURL,true);
n@377: 		xmlhttp.setRequestHeader('Content-Type', 'text/xml');
n@377: 		xmlhttp.onerror = function(){
n@377: 			console.log('Error saving file to server! Presenting download locally');
n@377: 			createProjectSave(null);
n@377: 		};
n@377: 		xmlhttp.onreadystatechange  = function() {
n@377: 			console.log(xmlhttp.status);
n@377: 			if (xmlhttp.status != 200 && xmlhttp.readyState == 4) {
n@377: 				createProjectSave(null);
n@377: 			} else {
n@377: 				if (xmlhttp.responseXML == null)
n@377: 				{
n@453: 					createProjectSave('null');
n@377: 				}
n@377: 				var response = xmlhttp.responseXML.childNodes[0];
n@377: 				if (response.getAttribute('state') == "OK")
n@377: 				{
n@377: 					var file = response.getElementsByTagName('file')[0];
n@377: 					console.log('Save OK: Filename '+file.textContent+','+file.getAttribute('bytes')+'B');
n@377: 					popup.showPopup();
n@377: 					popup.popupContent.innerHTML = null;
n@377: 					popup.popupContent.textContent = "Thank you!";
n@377: 				} else {
n@377: 					var message = response.getElementsByTagName('message')[0];
n@377: 					errorSessionDump(message.textContent);
n@377: 				}
n@377: 			}
n@377: 		};
n@377: 		xmlhttp.send(file);
n@461: 		popup.showPopup();
n@461: 		popup.popupContent.innerHTML = null;
n@461: 		popup.popupContent.textContent = "Submitting. Please Wait";
n@377: 	}
n@377: }
n@377: 
n@377: function errorSessionDump(msg){
n@377: 	// Create the partial interface XML save
n@377: 	// Include error node with message on why the dump occured
n@430: 	popup.showPopup();
n@430: 	popup.popupContent.innerHTML = null;
n@430: 	var err = document.createElement('error');
n@430: 	var parent = document.createElement("div");
n@430: 	if (typeof msg === "object")
n@430: 	{
n@430: 		err.appendChild(msg);
n@430: 		popup.popupContent.appendChild(msg);
n@430: 		
n@430: 	} else {
n@430: 		err.textContent = msg;
n@430: 		popup.popupContent.innerHTML = "ERROR : "+msg;
n@430: 	}
n@377: 	var xmlDoc = interfaceXMLSave();
n@377: 	xmlDoc.appendChild(err);
n@377: 	parent.appendChild(xmlDoc);
n@377: 	var file = [parent.innerHTML];
n@377: 	var bb = new Blob(file,{type : 'application/xml'});
n@377: 	var dnlk = window.URL.createObjectURL(bb);
n@377: 	var a = document.createElement("a");
n@377: 	a.hidden = '';
n@377: 	a.href = dnlk;
n@377: 	a.download = "save.xml";
n@377: 	a.textContent = "Save File";
n@377: 	
n@430: 	
n@430: 	
n@377: 	popup.popupContent.appendChild(a);
n@377: }
n@377: 
n@377: // Only other global function which must be defined in the interface class. Determines how to create the XML document.
n@377: function interfaceXMLSave(){
n@377: 	// Create the XML string to be exported with results
n@453: 	return storage.finish();
n@377: }
n@377: 
n@400: function linearToDecibel(gain)
n@400: {
n@400: 	return 20.0*Math.log10(gain);
n@400: }
n@400: 
n@400: function decibelToLinear(gain)
n@400: {
n@400: 	return Math.pow(10,gain/20.0);
n@400: }
n@400: 
nicholas@116: function interfacePopup() {
nicholas@116: 	// Creates an object to manage the popup
nicholas@116: 	this.popup = null;
nicholas@116: 	this.popupContent = null;
n@303: 	this.popupTitle = null;
n@303: 	this.popupResponse = null;
n@197: 	this.buttonProceed = null;
n@199: 	this.buttonPrevious = null;
nicholas@116: 	this.popupOptions = null;
nicholas@116: 	this.currentIndex = null;
n@453: 	this.node = null;
n@453: 	this.store = null;
n@396: 	$(window).keypress(function(e){
n@396: 			if (e.keyCode == 13 && popup.popup.style.visibility == 'visible')
n@396: 			{
n@396: 				console.log(e);
n@396: 				popup.buttonProceed.onclick();
n@398: 				e.preventDefault();
n@396: 			}
n@396: 		});
n@181: 	
nicholas@116: 	this.createPopup = function(){
nicholas@116: 		// Create popup window interface
nicholas@116: 		var insertPoint = document.getElementById("topLevelBody");
nicholas@116: 		var blank = document.createElement('div');
nicholas@116: 		blank.className = 'testHalt';
nicholas@116: 		
nicholas@116: 		this.popup = document.createElement('div');
nicholas@116: 		this.popup.id = 'popupHolder';
nicholas@116: 		this.popup.className = 'popupHolder';
nicholas@116: 		this.popup.style.position = 'absolute';
nicholas@116: 		this.popup.style.left = (window.innerWidth/2)-250 + 'px';
nicholas@116: 		this.popup.style.top = (window.innerHeight/2)-125 + 'px';
nicholas@116: 		
nicholas@116: 		this.popupContent = document.createElement('div');
nicholas@116: 		this.popupContent.id = 'popupContent';
n@303: 		this.popupContent.style.marginTop = '20px';
nicholas@364: 		this.popupContent.style.marginBottom = '5px';
nicholas@116: 		this.popup.appendChild(this.popupContent);
nicholas@116: 		
n@303: 		var titleHolder = document.createElement('div');
n@303: 		titleHolder.id = 'popupTitleHolder';
nicholas@364: 		titleHolder.align = 'center';
n@303: 		titleHolder.style.width = 'inherit';
nicholas@364: 		titleHolder.style.minHeight = '25px';
nicholas@364: 		titleHolder.style.maxHeight = '250px';
nicholas@364: 		titleHolder.style.overflow = 'auto';
n@303: 		titleHolder.style.marginBottom = '5px';
n@303: 		
n@303: 		this.popupTitle = document.createElement('span');
n@303: 		this.popupTitle.id = 'popupTitle';
n@303: 		titleHolder.appendChild(this.popupTitle);
n@303: 		this.popupContent.appendChild(titleHolder);
n@303: 		
n@303: 		this.popupResponse = document.createElement('div');
n@303: 		this.popupResponse.id = 'popupResponse';
nicholas@364: 		this.popupResponse.align = 'center';
n@303: 		this.popupResponse.style.width = 'inherit';
nicholas@364: 		this.popupResponse.style.minHeight = '50px';
n@303: 		this.popupResponse.style.maxHeight = '320px';
n@303: 		this.popupResponse.style.overflow = 'auto';
n@303: 		this.popupContent.appendChild(this.popupResponse);
n@303: 		
n@197: 		this.buttonProceed = document.createElement('button');
n@197: 		this.buttonProceed.className = 'popupButton';
nicholas@364: 		this.buttonProceed.position = 'relative';
n@303: 		this.buttonProceed.style.left = '390px';
n@197: 		this.buttonProceed.innerHTML = 'Next';
n@197: 		this.buttonProceed.onclick = function(){popup.proceedClicked();};
n@199: 		
n@199: 		this.buttonPrevious = document.createElement('button');
n@199: 		this.buttonPrevious.className = 'popupButton';
nicholas@364: 		this.buttonPrevious.position = 'relative';
n@199: 		this.buttonPrevious.style.left = '10px';
n@199: 		this.buttonPrevious.innerHTML = 'Back';
n@199: 		this.buttonPrevious.onclick = function(){popup.previousClick();};
n@199: 		
nicholas@364: 		this.popupContent.appendChild(this.buttonPrevious);
nicholas@364: 		this.popupContent.appendChild(this.buttonProceed);
n@303: 		
n@181: 		this.popup.style.zIndex = -1;
n@181: 		this.popup.style.visibility = 'hidden';
n@181: 		blank.style.zIndex = -2;
n@181: 		blank.style.visibility = 'hidden';
nicholas@116: 		insertPoint.appendChild(this.popup);
nicholas@116: 		insertPoint.appendChild(blank);
nicholas@116: 	};
nicholas@114: 	
nicholas@116: 	this.showPopup = function(){
n@181: 		if (this.popup == null) {
nicholas@116: 			this.createPopup();
nicholas@116: 		}
nicholas@116: 		this.popup.style.zIndex = 3;
nicholas@116: 		this.popup.style.visibility = 'visible';
nicholas@116: 		var blank = document.getElementsByClassName('testHalt')[0];
nicholas@116: 		blank.style.zIndex = 2;
nicholas@116: 		blank.style.visibility = 'visible';
nicholas@116: 	};
nicholas@116: 	
nicholas@116: 	this.hidePopup = function(){
nicholas@116: 		this.popup.style.zIndex = -1;
nicholas@116: 		this.popup.style.visibility = 'hidden';
nicholas@116: 		var blank = document.getElementsByClassName('testHalt')[0];
nicholas@116: 		blank.style.zIndex = -2;
nicholas@116: 		blank.style.visibility = 'hidden';
n@303: 		this.buttonPrevious.style.visibility = 'inherit';
nicholas@116: 	};
nicholas@116: 	
nicholas@116: 	this.postNode = function() {
nicholas@116: 		// This will take the node from the popupOptions and display it
nicholas@116: 		var node = this.popupOptions[this.currentIndex];
n@303: 		this.popupResponse.innerHTML = null;
n@453: 		this.popupTitle.textContent = node.specification.statement;
n@453: 		if (node.specification.type == 'question') {
nicholas@116: 			var textArea = document.createElement('textarea');
n@453: 			switch (node.specification.boxsize) {
n@191: 			case 'small':
n@191: 				textArea.cols = "20";
n@191: 				textArea.rows = "1";
n@191: 				break;
n@191: 			case 'normal':
n@191: 				textArea.cols = "30";
n@191: 				textArea.rows = "2";
n@191: 				break;
n@191: 			case 'large':
n@191: 				textArea.cols = "40";
n@191: 				textArea.rows = "5";
n@191: 				break;
n@191: 			case 'huge':
n@191: 				textArea.cols = "50";
n@191: 				textArea.rows = "10";
n@191: 				break;
n@191: 			}
n@303: 			this.popupResponse.appendChild(textArea);
n@303: 			textArea.focus();
n@453: 		} else if (node.specification.type == 'checkbox') {
n@453: 			for (var option of node.specification.options) {
nicholas@188: 				var input = document.createElement('input');
n@448: 				input.id = option.name;
nicholas@188: 				input.type = 'checkbox';
nicholas@188: 				var span = document.createElement('span');
nicholas@188: 				span.textContent = option.text;
nicholas@188: 				var hold = document.createElement('div');
nicholas@188: 				hold.setAttribute('name','option');
nicholas@188: 				hold.style.padding = '4px';
nicholas@188: 				hold.appendChild(input);
nicholas@188: 				hold.appendChild(span);
n@453: 				this.popupResponse.appendChild(hold);
nicholas@188: 			}
n@453: 		} else if (node.specification.type == 'radio') {
n@453: 			for (var option of node.specification.options) {
nicholas@189: 				var input = document.createElement('input');
nicholas@189: 				input.id = option.name;
nicholas@189: 				input.type = 'radio';
n@453: 				input.name = node.specification.id;
nicholas@189: 				var span = document.createElement('span');
nicholas@189: 				span.textContent = option.text;
nicholas@189: 				var hold = document.createElement('div');
nicholas@189: 				hold.setAttribute('name','option');
nicholas@189: 				hold.style.padding = '4px';
nicholas@189: 				hold.appendChild(input);
nicholas@189: 				hold.appendChild(span);
n@453: 				this.popupResponse.appendChild(hold);
nicholas@189: 			}
n@453: 		} else if (node.specification.type == 'number') {
n@196: 			var input = document.createElement('input');
nicholas@224: 			input.type = 'textarea';
n@453: 			if (node.min != null) {input.min = node.specification.min;}
n@453: 			if (node.max != null) {input.max = node.specification.max;}
n@453: 			if (node.step != null) {input.step = node.specification.step;}
n@303: 			this.popupResponse.appendChild(input);
nicholas@116: 		}
nicholas@364: 		var content_height = Number(this.popup.offsetHeight.toFixed());
nicholas@364: 		content_height -= Number(this.popupContent.offsetHeight.toFixed());
nicholas@364: 		content_height -=Number(this.buttonProceed.offsetHeight.toFixed());
nicholas@364: 		content_height = content_height + "px";
nicholas@364: 		this.buttonProceed.style.top = content_height;
nicholas@364: 		this.buttonPrevious.style.top = content_height;
n@199: 		if(this.currentIndex+1 == this.popupOptions.length) {
n@453: 			if (this.node.location == "pre") {
nicholas@268: 				this.buttonProceed.textContent = 'Start';
nicholas@268: 			} else {
nicholas@268: 				this.buttonProceed.textContent = 'Submit';
nicholas@268: 			}
n@199: 		} else {
n@199: 			this.buttonProceed.textContent = 'Next';
n@199: 		}
n@199: 		if(this.currentIndex > 0)
n@303: 			this.buttonPrevious.style.visibility = 'visible';
n@303: 		else
n@303: 			this.buttonPrevious.style.visibility = 'hidden';
n@155: 	};
nicholas@116: 	
n@453: 	this.initState = function(node,store) {
nicholas@116: 		//Call this with your preTest and postTest nodes when needed to
nicholas@116: 		// initialise the popup procedure.
n@453: 		if (node.options.length > 0) {
n@453: 			this.popupOptions = [];
n@453: 			this.node = node;
n@453: 			this.store = store;
n@453: 			for (var opt of node.options)
n@453: 			{
n@453: 				this.popupOptions.push({
n@453: 					specification: opt,
n@453: 					response: null
n@453: 				});
n@453: 			}			
nicholas@116: 			this.currentIndex = 0;
nicholas@116: 			this.showPopup();
nicholas@116: 			this.postNode();
n@181: 		} else {
n@181: 			advanceState();
nicholas@116: 		}
n@155: 	};
nicholas@116: 	
n@197: 	this.proceedClicked = function() {
nicholas@116: 		// Each time the popup button is clicked!
nicholas@116: 		var node = this.popupOptions[this.currentIndex];
n@453: 		if (node.specification.type == 'question') {
nicholas@116: 			// Must extract the question data
nicholas@116: 			var textArea = $(popup.popupContent).find('textarea')[0];
n@453: 			if (node.specification.mandatory == true && textArea.value.length == 0) {
nicholas@116: 				alert('This question is mandatory');
nicholas@116: 				return;
nicholas@116: 			} else {
nicholas@116: 				// Save the text content
n@453: 				console.log("Question: "+ node.specification.statement);
nicholas@117: 				console.log("Question Response: "+ textArea.value);
n@453: 				node.response = textArea.value;
nicholas@116: 			}
n@453: 		} else if (node.specification.type == 'checkbox') {
nicholas@188: 			// Must extract checkbox data
n@455: 			console.log("Checkbox: "+ node.specification.statement);
n@453: 			var inputs = this.popupResponse.getElementsByTagName('input');
n@453: 			node.response = [];
n@453: 			for (var i=0; i<node.specification.options.length; i++) {
n@453: 				node.response.push({
n@453: 					name: node.specification.options[i].name,
n@453: 					text: node.specification.options[i].text,
n@453: 					checked: inputs[i].checked
n@453: 				});
n@455: 				console.log(node.specification.options[i].name+": "+ inputs[i].checked);
n@453: 			}
n@453: 		} else if (node.specification.type == "radio") {
n@303: 			var optHold = this.popupResponse;
n@453: 			console.log("Radio: "+ node.specification.statement);
n@453: 			node.response = null;
nicholas@189: 			var i=0;
n@453: 			var inputs = optHold.getElementsByTagName('input');
n@453: 			while(node.response == null) {
n@453: 				if (i == inputs.length)
n@453: 				{
n@453: 					if (node.specification.mandatory == true)
n@453: 					{
n@453: 						alert("This radio is mandatory");
n@453: 					} else {
n@453: 						node.response = -1;
n@453: 					}
n@453: 					return;
n@453: 				}
n@453: 				if (inputs[i].checked == true) {
n@453: 					node.response = node.specification.options[i];
n@453: 					console.log("Selected: "+ node.specification.options[i].name);
nicholas@189: 				}
nicholas@189: 				i++;
nicholas@189: 			}
n@453: 		} else if (node.specification.type == "number") {
n@196: 			var input = this.popupContent.getElementsByTagName('input')[0];
n@196: 			if (node.mandatory == true && input.value.length == 0) {
n@197: 				alert('This question is mandatory. Please enter a number');
n@197: 				return;
n@197: 			}
n@197: 			var enteredNumber = Number(input.value);
nicholas@224: 			if (isNaN(enteredNumber)) {
n@197: 				alert('Please enter a valid number');
n@197: 				return;
n@197: 			}
n@197: 			if (enteredNumber < node.min && node.min != null) {
n@197: 				alert('Number is below the minimum value of '+node.min);
n@197: 				return;
n@197: 			}
n@197: 			if (enteredNumber > node.max && node.max != null) {
n@197: 				alert('Number is above the maximum value of '+node.max);
n@196: 				return;
n@196: 			}
n@453: 			node.response = input.value;
nicholas@116: 		}
nicholas@116: 		this.currentIndex++;
nicholas@116: 		if (this.currentIndex < this.popupOptions.length) {
nicholas@116: 			this.postNode();
nicholas@116: 		} else {
nicholas@116: 			// Reached the end of the popupOptions
nicholas@116: 			this.hidePopup();
n@453: 			for (var node of this.popupOptions)
n@453: 			{
n@453: 				this.store.postResult(node);
nicholas@129: 			}
nicholas@116: 			advanceState();
nicholas@116: 		}
n@155: 	};
n@199: 	
n@199: 	this.previousClick = function() {
n@199: 		// Triggered when the 'Back' button is clicked in the survey
n@199: 		if (this.currentIndex > 0) {
n@199: 			this.currentIndex--;
n@199: 			var node = this.popupOptions[this.currentIndex];
n@199: 			if (node.type != 'statement') {
n@199: 				var prevResp = this.responses.childNodes[this.responses.childElementCount-1];
n@199: 				this.responses.removeChild(prevResp);
n@199: 			}
n@199: 			this.postNode();
n@199: 			if (node.type == 'question') {
n@199: 				this.popupContent.getElementsByTagName('textarea')[0].value = prevResp.textContent;
n@199: 			} else if (node.type == 'checkbox') {
n@199: 				var options = this.popupContent.getElementsByTagName('input');
n@199: 				var savedOptions = prevResp.getElementsByTagName('option');
n@199: 				for (var i=0; i<options.length; i++) {
n@199: 					var id = options[i].id;
n@199: 					for (var j=0; j<savedOptions.length; j++) {
n@199: 						if (savedOptions[j].getAttribute('name') == id) {
n@199: 							if (savedOptions[j].textContent == 'true') {options[i].checked = true;}
n@199: 							else {options[i].checked = false;}
n@199: 							break;
n@199: 						}
n@199: 					}
n@199: 				}
n@199: 			} else if (node.type == 'number') {
n@199: 				this.popupContent.getElementsByTagName('input')[0].value = prevResp.textContent;
n@199: 			} else if (node.type == 'radio') {
n@199: 				var options = this.popupContent.getElementsByTagName('input');
n@199: 				var name = prevResp.getAttribute('name');
n@199: 				for (var i=0; i<options.length; i++) {
n@199: 					if (options[i].id == name) {
n@199: 						options[i].checked = true;
n@199: 						break;
n@199: 					}
n@199: 				}
n@199: 			}
n@199: 		}
n@199: 	};
n@395: 	
n@395: 	this.resize = function(event)
n@395: 	{
n@395: 		// Called on window resize;
n@395: 		this.popup.style.left = (window.innerWidth/2)-250 + 'px';
n@395: 		this.popup.style.top = (window.innerHeight/2)-125 + 'px';
n@395: 		var blank = document.getElementsByClassName('testHalt')[0];
n@395: 		blank.style.width = window.innerWidth;
n@395: 		blank.style.height = window.innerHeight;
n@395: 	};
nicholas@114: }
nicholas@114: 
nicholas@116: function advanceState()
nicholas@114: {
nicholas@129: 	// Just for complete clarity
nicholas@129: 	testState.advanceState();
nicholas@129: }
nicholas@129: 
nicholas@129: function stateMachine()
nicholas@129: {
nicholas@129: 	// Object prototype for tracking and managing the test state
nicholas@129: 	this.stateMap = [];
n@453: 	this.preTestSurvey = null;
n@453: 	this.postTestSurvey = null;
nicholas@129: 	this.stateIndex = null;
n@453: 	this.currentStateMap = null;
n@453: 	this.currentStatePosition = null;
nicholas@129: 	this.currentTestId = 0;
nicholas@129: 	this.stateResults = [];
nicholas@135: 	this.timerCallBackHolders = null;
nicholas@129: 	this.initialise = function(){
n@453: 		
n@453: 		// Get the data from Specification
n@453: 		var pageHolder = [];
n@453: 		for (var page of specification.pages)
n@453: 		{
n@453: 			pageHolder.push(page);
n@453: 		}
n@453: 		if (specification.randomiseOrder)
n@453: 		{
n@453: 			pageHolder = randomiseOrder(pageHolder);
n@453: 		}
n@453: 		for (var i=0; i<pageHolder.length; i++)
n@453: 		{
n@453: 			pageHolder[i].presentedId = i;
n@453: 		}
n@453: 		for (var i=0; i<specification.pages.length; i++)
n@453: 		{
n@453: 			if (specification.testPages < i && specification.testPages != 0) {break;}
n@453: 			this.stateMap.push(pageHolder[i]);
n@453: 			
n@453: 		}
n@453: 		if (specification.preTest != null) {this.preTestSurvey = specification.preTest;}
n@453: 		if (specification.postTest != null) {this.postTestSurvey = specification.postTest;}
n@453: 		
nicholas@129: 		if (this.stateMap.length > 0) {
nicholas@129: 			if(this.stateIndex != null) {
nicholas@129: 				console.log('NOTE - State already initialise');
nicholas@129: 			}
nicholas@129: 			this.stateIndex = -1;
nicholas@129: 			var that = this;
nicholas@250: 			var aH_pId = 0;
nicholas@129: 			for (var id=0; id<this.stateMap.length; id++){
n@181: 				var name = this.stateMap[id].type;
nicholas@129: 				var obj = document.createElement(name);
nicholas@187: 				if (name == 'audioHolder') {
nicholas@187: 					obj.id = this.stateMap[id].id;
nicholas@250: 					obj.setAttribute('presentedid',aH_pId);
nicholas@250: 					aH_pId+=1;
nicholas@187: 				}
nicholas@129: 				this.stateResults.push(obj);
nicholas@129: 			}
nicholas@129: 		} else {
b@254: 			console.log('FATAL - StateMap not correctly constructed. EMPTY_STATE_MAP');
nicholas@116: 		}
nicholas@129: 	};
nicholas@129: 	this.advanceState = function(){
nicholas@129: 		if (this.stateIndex == null) {
nicholas@129: 			this.initialise();
nicholas@129: 		}
nicholas@129: 		if (this.stateIndex == -1) {
n@471: 			this.stateIndex++;
nicholas@129: 			console.log('Starting test...');
n@453: 			if (this.preTestSurvey != null)
n@453: 			{
n@453: 				popup.initState(this.preTestSurvey,storage.globalPreTest);
n@471: 			} else {
n@471: 				this.advanceState();
nicholas@129: 			}
n@453: 		} else if (this.stateIndex == this.stateMap.length)
n@453: 		{
n@453: 			// All test pages complete, post test
n@453: 			console.log('Ending test ...');
n@453: 			this.stateIndex++;
n@453: 			if (this.postTestSurvey == null) {
n@453: 				this.advanceState();
nicholas@129: 			} else {
n@453: 				popup.initState(this.postTestSurvey,storage.globalPostTest);
n@453: 			}
n@453: 		} else if (this.stateIndex > this.stateMap.length)
n@453: 		{
n@453: 			createProjectSave(specification.projectReturn);
n@453: 		}
n@453: 		else
n@453: 		{
n@453: 			if (this.currentStateMap == null)
n@453: 			{
nicholas@129: 				this.currentStateMap = this.stateMap[this.stateIndex];
n@463: 				if (this.currentStateMap.randomiseOrder)
n@463: 				{
n@463: 					this.currentStateMap.audioElements = randomiseOrder(this.currentStateMap.audioElements);
n@463: 				}
n@453: 				storage.createTestPageStore(this.currentStateMap);
n@453: 				if (this.currentStateMap.preTest != null)
n@453: 				{
n@453: 					this.currentStatePosition = 'pre';
n@453: 					popup.initState(this.currentStateMap.preTest,storage.testPages[this.stateIndex].preTest);
nicholas@129: 				} else {
n@453: 					this.currentStatePosition = 'test';
n@453: 				}
n@453: 				interfaceContext.newPage(this.currentStateMap,storage.testPages[this.stateIndex]);
n@453: 				return;
n@453: 			}
n@453: 			switch(this.currentStatePosition)
n@453: 			{
n@453: 			case 'pre':
n@453: 				this.currentStatePosition = 'test';
n@453: 				break;
n@453: 			case 'test':
n@453: 				this.currentStatePosition = 'post';
n@453: 				// Save the data
n@453: 				this.testPageCompleted();
n@453: 				if (this.currentStateMap.postTest == null)
n@453: 				{
nicholas@129: 					this.advanceState();
n@453: 					return;
n@453: 				} else {
n@453: 					popup.initState(this.currentStateMap.postTest,storage.testPages[this.stateIndex].postTest);
nicholas@129: 				}
n@453: 				break;
n@453: 			case 'post':
n@453: 				this.stateIndex++;
n@453: 				this.currentStateMap = null;
n@453: 				this.advanceState();
n@453: 				break;
n@453: 			};
nicholas@129: 		}
nicholas@129: 	};
nicholas@129: 	
n@453: 	this.testPageCompleted = function() {
nicholas@129: 		// Function called each time a test page has been completed
n@453: 		var storePoint = storage.testPages[this.stateIndex];
n@453: 		// First get the test metric
n@453: 		
n@453: 		var metric = storePoint.XMLDOM.getElementsByTagName('metric')[0];
n@381: 		if (audioEngineContext.metric.enableTestTimer)
n@381: 		{
n@453: 			var testTime = storePoint.parent.document.createElement('metricresult');
n@381: 			testTime.id = 'testTime';
n@381: 			testTime.textContent = audioEngineContext.timer.testDuration;
n@381: 			metric.appendChild(testTime);
n@381: 		}
n@453: 		
n@381: 		var audioObjects = audioEngineContext.audioObjects;
n@453: 		for (var ao of audioEngineContext.audioObjects) 
n@381: 		{
n@453: 			ao.exportXMLDOM();
n@381: 		}
n@453: 		for (var element of interfaceContext.commentQuestions)
n@453: 		{
n@453: 			element.exportXMLDOM(storePoint);
n@453: 		}
n@453: 		pageXMLSave(storePoint.XMLDOM, this.currentStateMap);
n@176: 	};
nicholas@114: }
nicholas@114: 
n@377: function AudioEngine(specification) {
nicholas@1: 	
nicholas@1: 	// Create two output paths, the main outputGain and fooGain.
nicholas@1: 	// Output gain is default to 1 and any items for playback route here
nicholas@1: 	// Foo gain is used for analysis to ensure paths get processed, but are not heard
nicholas@1: 	// because web audio will optimise and any route which does not go to the destination gets ignored.
nicholas@1: 	this.outputGain = audioContext.createGain();
nicholas@1: 	this.fooGain = audioContext.createGain();
nicholas@1: 	this.fooGain.gain = 0;
nicholas@1: 	
nicholas@7: 	// Use this to detect playback state: 0 - stopped, 1 - playing
nicholas@7: 	this.status = 0;
nicholas@7: 	
nicholas@1: 	// Connect both gains to output
nicholas@1: 	this.outputGain.connect(audioContext.destination);
nicholas@1: 	this.fooGain.connect(audioContext.destination);
nicholas@1: 	
n@49: 	// Create the timer Object
n@49: 	this.timer = new timer();
n@49: 	// Create session metrics
n@377: 	this.metric = new sessionMetrics(this,specification);
n@49: 	
n@57: 	this.loopPlayback = false;
n@57: 	
n@453: 	this.pageStore = null;
n@453: 	
nicholas@1: 	// Create store for new audioObjects
nicholas@1: 	this.audioObjects = [];
nicholas@1: 	
n@379: 	this.buffers = [];
n@408: 	this.bufferObj = function()
n@379: 	{
n@408: 		this.url = null;
n@379: 		this.buffer = null;
n@379: 		this.xmlRequest = new XMLHttpRequest();
nicholas@418: 		this.xmlRequest.parent = this;
n@379: 		this.users = [];
n@471: 		this.ready = function()
n@471: 		{
n@471: 			for (var i=0; i<this.users.length; i++)
n@471: 			{
n@471: 				this.users[i].state = 1;
n@471: 				if (this.users[i].interfaceDOM != null)
n@471: 				{
n@471: 					this.users[i].bufferLoaded(this);
n@471: 				}
n@471: 			}
n@471: 		};
n@408: 		this.getMedia = function(url) {
n@408: 			this.url = url;
n@408: 			this.xmlRequest.open('GET',this.url,true);
n@408: 			this.xmlRequest.responseType = 'arraybuffer';
n@408: 			
n@408: 			var bufferObj = this;
n@408: 			
n@408: 			// Create callback to decode the data asynchronously
n@408: 			this.xmlRequest.onloadend = function() {
n@408: 				audioContext.decodeAudioData(bufferObj.xmlRequest.response, function(decodedData) {
n@408: 					bufferObj.buffer = decodedData;
n@471: 					calculateLoudness(bufferObj,"I");
n@471: 					
n@408: 				}, function(){
n@408: 					// Should only be called if there was an error, but sometimes gets called continuously
n@408: 					// Check here if the error is genuine
n@408: 					if (bufferObj.buffer == undefined) {
n@408: 						// Genuine error
n@408: 						console.log('FATAL - Error loading buffer on '+audioObj.id);
n@408: 						if (request.status == 404)
n@408: 						{
n@408: 							console.log('FATAL - Fragment '+audioObj.id+' 404 error');
n@408: 							console.log('URL: '+audioObj.url);
n@408: 							errorSessionDump('Fragment '+audioObj.id+' 404 error');
n@408: 						}
n@379: 					}
n@408: 				});
n@408: 			};
n@411: 			this.progress = 0;
n@411: 			this.progressCallback = function(event){
n@411: 				if (event.lengthComputable)
n@411: 				{
nicholas@418: 					this.parent.progress = event.loaded / event.total;
nicholas@418: 					for (var i=0; i<this.parent.users.length; i++)
nicholas@418: 					{
nicholas@418: 						if(this.parent.users[i].interfaceDOM != null)
nicholas@418: 						{
nicholas@418: 							if (typeof this.parent.users[i].interfaceDOM.updateLoading === "function")
nicholas@418: 							{
nicholas@418: 								this.parent.users[i].interfaceDOM.updateLoading(this.parent.progress*100);
nicholas@418: 							}
nicholas@418: 						}
nicholas@418: 					}
n@411: 				}
n@411: 			};
n@411: 			this.xmlRequest.addEventListener("progress", this.progressCallback);
n@408: 			this.xmlRequest.send();
n@379: 		};
n@379: 	};
n@379: 	
n@202: 	this.play = function(id) {
n@113: 		// Start the timer and set the audioEngine state to playing (1)
n@300: 		if (this.status == 0 && this.loopPlayback) {
n@113: 			// Check if all audioObjects are ready
n@300: 			if(this.checkAllReady())
n@300: 			{
n@202: 				this.status = 1;
n@300: 				this.setSynchronousLoop();
n@202: 			}
n@202: 		}
n@300: 		else
n@300: 		{
n@300: 			this.status = 1;
n@300: 		}
n@202: 		if (this.status== 1) {
n@300: 			this.timer.startTest();
n@204: 			if (id == undefined) {
n@204: 				id = -1;
n@300: 				console.log('FATAL - Passed id was undefined - AudioEngineContext.play(id)');
n@300: 				return;
n@204: 			} else {
n@204: 				interfaceContext.playhead.setTimePerPixel(this.audioObjects[id]);
n@204: 			}
n@202: 			if (this.loopPlayback) {
n@202: 				for (var i=0; i<this.audioObjects.length; i++)
n@202: 				{
n@202: 					this.audioObjects[i].play(this.timer.getTestTime()+1);
n@202: 					if (id == i) {
n@202: 						this.audioObjects[i].loopStart();
n@202: 					} else {
n@202: 						this.audioObjects[i].loopStop();
nicholas@131: 					}
nicholas@131: 				}
n@202: 			} else {
n@202: 				for (var i=0; i<this.audioObjects.length; i++)
n@202: 				{
n@202: 					if (i != id) {
n@202: 						this.audioObjects[i].outputGain.gain.value = 0.0;
n@202: 						this.audioObjects[i].stop();
n@202: 					} else if (i == id) {
n@453: 						this.audioObjects[id].outputGain.gain.value = this.audioObjects[id].onplayGain;
n@202: 						this.audioObjects[id].play(audioContext.currentTime+0.01);
n@202: 					}
n@202: 				}
n@113: 			}
n@204: 			interfaceContext.playhead.start();
n@113: 		}
n@113: 	};
nicholas@1: 	
n@113: 	this.stop = function() {
n@113: 		// Send stop and reset command to all playback buffers and set audioEngine state to stopped (1)
n@113: 		if (this.status == 1) {
n@113: 			for (var i=0; i<this.audioObjects.length; i++)
n@113: 			{
n@113: 				this.audioObjects[i].stop();
n@113: 			}
n@204: 			interfaceContext.playhead.stop();
n@113: 			this.status = 0;
n@113: 		}
n@113: 	};
nicholas@8: 	
n@182: 	this.newTrack = function(element) {
nicholas@1: 		// Pull data from given URL into new audio buffer
nicholas@1: 		// URLs must either be from the same source OR be setup to 'Access-Control-Allow-Origin'
nicholas@7: 		
nicholas@1: 		// Create the audioObject with ID of the new track length;
n@49: 		audioObjectId = this.audioObjects.length;
nicholas@1: 		this.audioObjects[audioObjectId] = new audioObject(audioObjectId);
nicholas@7: 
n@379: 		// Check if audioObject buffer is currently stored by full URL
n@453: 		var URL = testState.currentStateMap.hostURL + element.url;
n@379: 		var buffer = null;
n@379: 		for (var i=0; i<this.buffers.length; i++)
n@379: 		{
n@379: 			if (URL == this.buffers[i].url)
n@379: 			{
n@379: 				buffer = this.buffers[i];
n@379: 				break;
n@379: 			}
n@379: 		}
n@379: 		if (buffer == null)
n@379: 		{
n@400: 			console.log("[WARN]: Buffer was not loaded in pre-test! "+URL);
n@408: 			buffer = new this.bufferObj();
n@408: 			buffer.getMedia(URL);
n@379: 			this.buffers.push(buffer);
n@379: 		}
n@182: 		this.audioObjects[audioObjectId].specification = element;
n@400: 		this.audioObjects[audioObjectId].url = URL;
n@412: 		buffer.users.push(this.audioObjects[audioObjectId]);
n@453: 		// Obtain store node
n@453: 		var aeNodes = this.pageStore.XMLDOM.getElementsByTagName('audioelement');
n@453: 		for (var i=0; i<aeNodes.length; i++)
n@453: 		{
n@453: 			if(aeNodes[i].id == element.id)
n@453: 			{
n@453: 				this.audioObjects[audioObjectId].storeDOM = aeNodes[i];
n@453: 				break;
n@453: 			}
n@453: 		}
n@379: 		if (buffer.buffer != null)
n@379: 		{
n@412: 			this.audioObjects[audioObjectId].bufferLoaded(buffer);
n@379: 		}
n@179: 		return this.audioObjects[audioObjectId];
n@16: 	};
nicholas@1: 	
n@453: 	this.newTestPage = function(store) {
n@453: 		this.pageStore = store;
n@113: 		this.state = 0;
n@113: 		this.audioObjectsReady = false;
n@113: 		this.metric.reset();
n@379: 		for (var i=0; i < this.buffers.length; i++)
n@379: 		{
n@379: 			this.buffers[i].users = [];
n@379: 		}
n@113: 		this.audioObjects = [];
n@113: 	};
n@113: 	
nicholas@107: 	this.checkAllPlayed = function() {
nicholas@107: 		arr = [];
nicholas@107: 		for (var id=0; id<this.audioObjects.length; id++) {
nicholas@142: 			if (this.audioObjects[id].metric.wasListenedTo == false) {
nicholas@107: 				arr.push(this.audioObjects[id].id);
nicholas@107: 			}
nicholas@107: 		}
nicholas@107: 		return arr;
nicholas@107: 	};
nicholas@107: 	
n@113: 	this.checkAllReady = function() {
n@113: 		var ready = true;
n@113: 		for (var i=0; i<this.audioObjects.length; i++) {
n@113: 			if (this.audioObjects[i].state == 0) {
n@113: 				// Track not ready
n@113: 				console.log('WAIT -- audioObject '+i+' not ready yet!');
n@113: 				ready = false;
n@113: 			};
n@113: 		}
n@113: 		return ready;
n@113: 	};
n@113: 	
nicholas@272: 	this.setSynchronousLoop = function() {
nicholas@272: 		// Pads the signals so they are all exactly the same length
n@300: 		var length = 0;
n@300: 		var maxId;
n@300: 		for (var i=0; i<this.audioObjects.length; i++)
nicholas@272: 		{
n@383: 			if (length < this.audioObjects[i].buffer.buffer.length)
nicholas@272: 			{
n@383: 				length = this.audioObjects[i].buffer.buffer.length;
n@300: 				maxId = i;
nicholas@272: 			}
n@300: 		}
n@300: 		// Extract the audio and zero-pad
n@408: 		for (var i=0; i<this.audioObjects.length; i++)
n@300: 		{
n@383: 			var orig = this.audioObjects[i].buffer.buffer;
n@300: 			var hold = audioContext.createBuffer(orig.numberOfChannels,length,orig.sampleRate);
n@300: 			for (var c=0; c<orig.numberOfChannels; c++)
nicholas@272: 			{
n@300: 				var inData = hold.getChannelData(c);
n@300: 				var outData = orig.getChannelData(c);
n@300: 				for (var n=0; n<orig.length; n++)
n@300: 				{inData[n] = outData[n];}
nicholas@272: 			}
n@448: 			hold.playbackGain = orig.playbackGain;
n@408: 			hold.lufs = orig.lufs;
n@383: 			this.audioObjects[i].buffer.buffer = hold;
nicholas@272: 		}
nicholas@272: 	};
nicholas@272: 	
nicholas@1: }
nicholas@1: 
nicholas@1: function audioObject(id) {
nicholas@1: 	// The main buffer object with common control nodes to the AudioEngine
nicholas@1: 	
n@182: 	this.specification;
nicholas@1: 	this.id = id;
nicholas@1: 	this.state = 0; // 0 - no data, 1 - ready
n@24: 	this.url = null; // Hold the URL given for the output back to the results.
n@139: 	this.metric = new metricTracker(this);
n@453: 	this.storeDOM = null;
nicholas@1: 	
n@177: 	// Bindings for GUI
n@183: 	this.interfaceDOM = null;
n@177: 	this.commentDOM = null;
n@177: 	
nicholas@1: 	// Create a buffer and external gain control to allow internal patching of effects and volume leveling.
n@57: 	this.bufferNode = undefined;
nicholas@1: 	this.outputGain = audioContext.createGain();
nicholas@1: 	
nicholas@8: 	// Default output gain to be zero
nicholas@8: 	this.outputGain.gain.value = 0.0;
n@453: 	this.onplayGain = 1.0;
nicholas@8: 	
nicholas@1: 	// Connect buffer to the audio graph
nicholas@1: 	this.outputGain.connect(audioEngineContext.outputGain);
nicholas@1: 	
nicholas@1: 	// the audiobuffer is not designed for multi-start playback
nicholas@1: 	// When stopeed, the buffer node is deleted and recreated with the stored buffer.
nicholas@1: 	this.buffer;
n@412: 	
n@412: 	this.bufferLoaded = function(callee)
n@412: 	{
n@412: 		// Called by the associated buffer when it has finished loading, will then 'bind' the buffer to the
n@412: 		// audioObject and trigger the interfaceDOM.enable() function for user feedback
n@412: 		if (audioEngineContext.loopPlayback){
n@412: 			// First copy the buffer into this.buffer
n@412: 			this.buffer = new audioEngineContext.bufferObj();
n@412: 			this.buffer.url = callee.url;
n@412: 			this.buffer.buffer = audioContext.createBuffer(callee.buffer.numberOfChannels, callee.buffer.length, callee.buffer.sampleRate);
n@412: 			for (var c=0; c<callee.buffer.numberOfChannels; c++)
n@412: 			{
n@412: 				var src = callee.buffer.getChannelData(c);
n@412: 				var dst = this.buffer.buffer.getChannelData(c);
n@412: 				for (var n=0; n<src.length; n++)
n@412: 				{
n@412: 					dst[n] = src[n];
n@412: 				}
n@412: 			}
n@412: 		} else {
n@412: 			this.buffer = callee;
n@412: 		}
n@412: 		this.state = 1;
n@448: 		this.buffer.buffer.playbackGain = callee.buffer.playbackGain;
n@412: 		this.buffer.buffer.lufs = callee.buffer.lufs;
n@412: 		var targetLUFS = this.specification.parent.loudness;
n@412: 		if (typeof targetLUFS === "number")
n@412: 		{
n@448: 			this.buffer.buffer.playbackGain = decibelToLinear(targetLUFS - this.buffer.buffer.lufs);
n@412: 		} else {
n@448: 			this.buffer.buffer.playbackGain = 1.0;
n@412: 		}
n@412: 		if (this.interfaceDOM != null) {
n@412: 			this.interfaceDOM.enable();
n@412: 		}
n@453: 		this.onplayGain = decibelToLinear(this.specification.gain)*this.buffer.buffer.playbackGain;
n@453: 		this.storeDOM.setAttribute('playGain',linearToDecibel(this.onplayGain));
n@412: 	};
n@454: 	
n@454: 	this.bindInterface = function(interfaceObject)
n@454: 	{
n@454: 		this.interfaceDOM = interfaceObject;
n@454: 		this.metric.initialise(interfaceObject.getValue());
n@454: 		if (this.state == 1)
n@454: 		{
n@454: 			this.interfaceDOM.enable();
n@454: 		}
n@467: 		this.storeDOM.setAttribute('presentedId',interfaceObject.getPresentedId());
n@454: 	};
b@134:     
nicholas@132: 	this.loopStart = function() {
n@453: 		this.outputGain.gain.value = this.onplayGain;
nicholas@132: 		this.metric.startListening(audioEngineContext.timer.getTestTime());
n@177: 	};
nicholas@132: 	
nicholas@132: 	this.loopStop = function() {
nicholas@132: 		if (this.outputGain.gain.value != 0.0) {
nicholas@132: 			this.outputGain.gain.value = 0.0;
nicholas@132: 			this.metric.stopListening(audioEngineContext.timer.getTestTime());
nicholas@132: 		}
n@177: 	};
nicholas@132: 	
nicholas@1: 	this.play = function(startTime) {
n@379: 		if (this.bufferNode == undefined && this.buffer.buffer != undefined) {
n@202: 			this.bufferNode = audioContext.createBufferSource();
n@202: 			this.bufferNode.owner = this;
n@202: 			this.bufferNode.connect(this.outputGain);
n@379: 			this.bufferNode.buffer = this.buffer.buffer;
n@202: 			this.bufferNode.loop = audioEngineContext.loopPlayback;
n@299: 			this.bufferNode.onended = function(event) {
n@202: 				// Safari does not like using 'this' to reference the calling object!
n@347: 				//event.currentTarget.owner.metric.stopListening(audioEngineContext.timer.getTestTime(),event.currentTarget.owner.getCurrentPosition());
n@347: 				event.currentTarget.owner.stop();
n@202: 			};
n@202: 			if (this.bufferNode.loop == false) {
n@202: 				this.metric.startListening(audioEngineContext.timer.getTestTime());
n@202: 			}
n@202: 			this.bufferNode.start(startTime);
nicholas@110: 		}
n@16: 	};
nicholas@1: 	
nicholas@1: 	this.stop = function() {
n@97: 		if (this.bufferNode != undefined)
n@97: 		{
n@203: 			this.metric.stopListening(audioEngineContext.timer.getTestTime(),this.getCurrentPosition());
n@97: 			this.bufferNode.stop(0);
n@97: 			this.bufferNode = undefined;
n@97: 		}
n@16: 	};
n@164: 	
n@164: 	this.getCurrentPosition = function() {
n@164: 		var time = audioEngineContext.timer.getTestTime();
n@164: 		if (this.bufferNode != undefined) {
n@164: 			if (this.bufferNode.loop == true) {
n@164: 				if (audioEngineContext.status  == 1) {
n@379: 					return (time-this.metric.listenStart)%this.buffer.buffer.duration;
n@164: 				} else {
n@164: 					return 0;
n@164: 				}
n@164: 			} else {
n@164: 				if (this.metric.listenHold) {
n@164: 					return time - this.metric.listenStart;
n@164: 				} else {
n@164: 					return 0;
n@164: 				}
n@164: 			}
n@164: 		} else {
n@164: 			return 0;
n@164: 		}
n@164: 	};
n@183: 	
n@183: 	this.exportXMLDOM = function() {
n@453: 		var file = storage.document.createElement('file');
nicholas@387: 		file.setAttribute('sampleRate',this.buffer.buffer.sampleRate);
nicholas@387: 		file.setAttribute('channels',this.buffer.buffer.numberOfChannels);
nicholas@387: 		file.setAttribute('sampleCount',this.buffer.buffer.length);
nicholas@387: 		file.setAttribute('duration',this.buffer.buffer.duration);
n@453: 		this.storeDOM.appendChild(file);
n@453: 		if (this.specification.type != 'outside-reference') {
n@383: 			var interfaceXML = this.interfaceDOM.exportXMLDOM(this);
n@469: 			if (interfaceXML != null)
n@469: 			{
n@469: 				if (interfaceXML.length == undefined) {
n@469: 					this.storeDOM.appendChild(interfaceXML);
n@469: 				} else {
n@469: 					for (var i=0; i<interfaceXML.length; i++)
n@469: 					{
n@469: 						this.storeDOM.appendChild(interfaceXML[i]);
n@469: 					}
n@383: 				}
n@383: 			}
n@459: 			if (this.commentDOM != null) {
n@459: 				this.storeDOM.appendChild(this.commentDOM.exportXMLDOM(this));
n@459: 			}
nicholas@236: 		}
n@453: 		var nodes = this.metric.exportXMLDOM();
n@453: 		var mroot = this.storeDOM.getElementsByTagName('metric')[0];
n@453: 		for (var i=0; i<nodes.length; i++)
n@453: 		{
n@453: 			mroot.appendChild(nodes[i]);
n@453: 		}
n@183: 	};
n@49: }
n@49: 
n@49: function timer()
n@49: {
n@49: 	/* Timer object used in audioEngine to keep track of session timings
n@49: 	 * Uses the timer of the web audio API, so sample resolution
n@49: 	 */
n@49: 	this.testStarted = false;
n@49: 	this.testStartTime = 0;
n@49: 	this.testDuration = 0;
n@49: 	this.minimumTestTime = 0; // No minimum test time
n@49: 	this.startTest = function()
n@49: 	{
n@49: 		if (this.testStarted == false)
n@49: 		{
n@49: 			this.testStartTime = audioContext.currentTime;
n@49: 			this.testStarted = true;
n@49: 			this.updateTestTime();
n@52: 			audioEngineContext.metric.initialiseTest();
n@49: 		}
n@49: 	};
n@49: 	this.stopTest = function()
n@49: 	{
n@49: 		if (this.testStarted)
n@49: 		{
n@49: 			this.testDuration = this.getTestTime();
n@49: 			this.testStarted = false;
n@49: 		} else {
n@49: 			console.log('ERR: Test tried to end before beginning');
n@49: 		}
n@49: 	};
n@49: 	this.updateTestTime = function()
n@49: 	{
n@49: 		if (this.testStarted)
n@49: 		{
n@49: 			this.testDuration = audioContext.currentTime - this.testStartTime;
n@49: 		}
n@49: 	};
n@49: 	this.getTestTime = function()
n@49: 	{
n@49: 		this.updateTestTime();
n@49: 		return this.testDuration;
n@49: 	};
n@49: }
n@49: 
n@377: function sessionMetrics(engine,specification)
n@49: {
n@49: 	/* Used by audioEngine to link to audioObjects to minimise the timer call timers;
n@49: 	 */
n@49: 	this.engine = engine;
n@49: 	this.lastClicked = -1;
n@49: 	this.data = -1;
n@113: 	this.reset = function() {
n@113: 		this.lastClicked = -1;
n@113: 		this.data = -1;
n@113: 	};
n@377: 	
n@377: 	this.enableElementInitialPosition = false;
n@377: 	this.enableElementListenTracker = false;
n@377: 	this.enableElementTimer = false;
n@377: 	this.enableElementTracker = false;
n@377: 	this.enableFlagListenedTo = false;
n@377: 	this.enableFlagMoved = false;
n@377: 	this.enableTestTimer = false;
n@377: 	// Obtain the metrics enabled
n@453: 	for (var i=0; i<specification.metrics.enabled.length; i++)
n@377: 	{
n@453: 		var node = specification.metrics.enabled[i];
n@453: 		switch(node)
n@377: 		{
n@377: 		case 'testTimer':
n@377: 			this.enableTestTimer = true;
n@377: 			break;
n@377: 		case 'elementTimer':
n@377: 			this.enableElementTimer = true;
n@377: 			break;
n@377: 		case 'elementTracker':
n@377: 			this.enableElementTracker = true;
n@377: 			break;
n@377: 		case 'elementListenTracker':
n@377: 			this.enableElementListenTracker = true;
n@377: 			break;
n@377: 		case 'elementInitialPosition':
n@377: 			this.enableElementInitialPosition = true;
n@377: 			break;
n@377: 		case 'elementFlagListenedTo':
n@377: 			this.enableFlagListenedTo = true;
n@377: 			break;
n@377: 		case 'elementFlagMoved':
n@377: 			this.enableFlagMoved = true;
n@377: 			break;
n@377: 		case 'elementFlagComments':
n@377: 			this.enableFlagComments = true;
n@377: 			break;
n@377: 		}
n@377: 	}
n@52: 	this.initialiseTest = function(){};
n@49: }
n@49: 
n@139: function metricTracker(caller)
n@49: {
n@49: 	/* Custom object to track and collect metric data
n@49: 	 * Used only inside the audioObjects object.
n@49: 	 */
n@49: 	
n@49: 	this.listenedTimer = 0;
n@49: 	this.listenStart = 0;
nicholas@110: 	this.listenHold = false;
n@51: 	this.initialPosition = -1;
n@49: 	this.movementTracker = [];
n@164: 	this.listenTracker =[];
n@49: 	this.wasListenedTo = false;
n@49: 	this.wasMoved = false;
n@49: 	this.hasComments = false;
n@139: 	this.parent = caller;
n@49: 	
n@453: 	this.initialise = function(position)
n@49: 	{
n@51: 		if (this.initialPosition == -1) {
n@51: 			this.initialPosition = position;
n@454: 			this.moved(0,position);
n@51: 		}
n@49: 	};
n@49: 	
n@49: 	this.moved = function(time,position)
n@49: 	{
n@454: 		if (time > 0) {this.wasMoved = true;}
n@49: 		this.movementTracker[this.movementTracker.length] = [time, position];
n@49: 	};
n@49: 	
nicholas@132: 	this.startListening = function(time)
n@49: 	{
nicholas@110: 		if (this.listenHold == false)
n@49: 		{
n@49: 			this.wasListenedTo = true;
n@49: 			this.listenStart = time;
nicholas@110: 			this.listenHold = true;
n@164: 			
n@164: 			var evnt = document.createElement('event');
n@164: 			var testTime = document.createElement('testTime');
n@164: 			testTime.setAttribute('start',time);
n@164: 			var bufferTime = document.createElement('bufferTime');
n@164: 			bufferTime.setAttribute('start',this.parent.getCurrentPosition());
n@164: 			evnt.appendChild(testTime);
n@164: 			evnt.appendChild(bufferTime);
n@164: 			this.listenTracker.push(evnt);
n@164: 			
n@139: 			console.log('slider ' + this.parent.id + ' played (' + time + ')'); // DEBUG/SAFETY: show played slider id
n@139: 		}
n@139: 	};
nicholas@132: 	
n@203: 	this.stopListening = function(time,bufferStopTime)
nicholas@132: 	{
nicholas@132: 		if (this.listenHold == true)
nicholas@132: 		{
n@164: 			var diff = time - this.listenStart;
n@164: 			this.listenedTimer += (diff);
n@49: 			this.listenStart = 0;
nicholas@110: 			this.listenHold = false;
n@164: 			
n@164: 			var evnt = this.listenTracker[this.listenTracker.length-1];
n@164: 			var testTime = evnt.getElementsByTagName('testTime')[0];
n@164: 			var bufferTime = evnt.getElementsByTagName('bufferTime')[0];
n@164: 			testTime.setAttribute('stop',time);
n@203: 			if (bufferStopTime == undefined) {
n@203: 				bufferTime.setAttribute('stop',this.parent.getCurrentPosition());
n@203: 			} else {
n@203: 				bufferTime.setAttribute('stop',bufferStopTime);
n@203: 			}
n@164: 			console.log('slider ' + this.parent.id + ' played for (' + diff + ')'); // DEBUG/SAFETY: show played slider id
n@49: 		}
n@49: 	};
n@177: 	
n@177: 	this.exportXMLDOM = function() {
n@453: 		var storeDOM = [];
n@177: 		if (audioEngineContext.metric.enableElementTimer) {
n@453: 			var mElementTimer = storage.document.createElement('metricresult');
n@177: 			mElementTimer.setAttribute('name','enableElementTimer');
n@177: 			mElementTimer.textContent = this.listenedTimer;
n@453: 			storeDOM.push(mElementTimer);
n@177: 		}
n@177: 		if (audioEngineContext.metric.enableElementTracker) {
n@453: 			var elementTrackerFull = storage.document.createElement('metricResult');
n@177: 			elementTrackerFull.setAttribute('name','elementTrackerFull');
n@177: 			for (var k=0; k<this.movementTracker.length; k++)
n@177: 			{
n@453: 				var timePos = storage.document.createElement('timePos');
n@177: 				timePos.id = k;
n@453: 				var time = storage.document.createElement('time');
n@177: 				time.textContent = this.movementTracker[k][0];
n@177: 				var position = document.createElement('position');
n@177: 				position.textContent = this.movementTracker[k][1];
n@177: 				timePos.appendChild(time);
n@177: 				timePos.appendChild(position);
n@177: 				elementTrackerFull.appendChild(timePos);
n@177: 			}
n@453: 			storeDOM.push(elementTrackerFull);
n@177: 		}
n@177: 		if (audioEngineContext.metric.enableElementListenTracker) {
n@453: 			var elementListenTracker = storage.document.createElement('metricResult');
n@177: 			elementListenTracker.setAttribute('name','elementListenTracker');
n@177: 			for (var k=0; k<this.listenTracker.length; k++) {
n@177: 				elementListenTracker.appendChild(this.listenTracker[k]);
n@177: 			}
n@453: 			storeDOM.push(elementListenTracker);
n@177: 		}
n@177: 		if (audioEngineContext.metric.enableElementInitialPosition) {
n@453: 			var elementInitial = storage.document.createElement('metricResult');
n@177: 			elementInitial.setAttribute('name','elementInitialPosition');
n@177: 			elementInitial.textContent = this.initialPosition;
n@453: 			storeDOM.push(elementInitial);
n@177: 		}
n@177: 		if (audioEngineContext.metric.enableFlagListenedTo) {
n@453: 			var flagListenedTo = storage.document.createElement('metricResult');
n@177: 			flagListenedTo.setAttribute('name','elementFlagListenedTo');
n@177: 			flagListenedTo.textContent = this.wasListenedTo;
n@453: 			storeDOM.push(flagListenedTo);
n@177: 		}
n@177: 		if (audioEngineContext.metric.enableFlagMoved) {
n@453: 			var flagMoved = storage.document.createElement('metricResult');
n@177: 			flagMoved.setAttribute('name','elementFlagMoved');
n@177: 			flagMoved.textContent = this.wasMoved;
n@453: 			storeDOM.push(flagMoved);
n@177: 		}
n@177: 		if (audioEngineContext.metric.enableFlagComments) {
n@453: 			var flagComments = storage.document.createElement('metricResult');
n@177: 			flagComments.setAttribute('name','elementFlagComments');
n@177: 			if (this.parent.commentDOM == null)
n@177: 				{flag.textContent = 'false';}
n@177: 			else if (this.parent.commentDOM.textContent.length == 0) 
n@177: 				{flag.textContent = 'false';}
n@177: 			else 
n@177: 				{flag.textContet = 'true';}
n@453: 			storeDOM.push(flagComments);
n@177: 		}
n@453: 		return storeDOM;
n@177: 	};
n@54: }
n@54: 
n@54: function randomiseOrder(input)
n@54: {
n@54: 	// This takes an array of information and randomises the order
n@54: 	var N = input.length;
b@207: 	
b@207: 	var inputSequence = []; // For safety purposes: keep track of randomisation
b@207: 	for (var counter = 0; counter < N; ++counter) 
b@207: 		inputSequence.push(counter) // Fill array
b@207: 	var inputSequenceClone = inputSequence.slice(0);
b@207: 	
n@54: 	var holdArr = [];
b@207: 	var outputSequence = [];
n@54: 	for (var n=0; n<N; n++)
n@54: 	{
n@54: 		// First pick a random number
n@54: 		var r = Math.random();
n@54: 		// Multiply and floor by the number of elements left
n@54: 		r = Math.floor(r*input.length);
n@54: 		// Pick out that element and delete from the array
n@54: 		holdArr.push(input.splice(r,1)[0]);
b@207: 		// Do the same with sequence
b@207: 		outputSequence.push(inputSequence.splice(r,1)[0]);
n@54: 	}
b@207: 	console.log(inputSequenceClone.toString()); // print original array to console
b@207: 	console.log(outputSequence.toString()); 	// print randomised array to console
n@54: 	return holdArr;
n@125: }
n@125: 
n@125: function returnDateNode()
n@125: {
n@125: 	// Create an XML Node for the Date and Time a test was conducted
n@125: 	// Structure is
n@125: 	// <datetime> 
n@125: 	//	<date year="##" month="##" day="##">DD/MM/YY</date>
n@125: 	//	<time hour="##" minute="##" sec="##">HH:MM:SS</time>
n@125: 	// </datetime>
n@125: 	var dateTime = new Date();
n@125: 	var year = document.createAttribute('year');
n@125: 	var month = document.createAttribute('month');
n@125: 	var day = document.createAttribute('day');
n@125: 	var hour = document.createAttribute('hour');
n@125: 	var minute = document.createAttribute('minute');
n@125: 	var secs = document.createAttribute('secs');
n@125: 	
n@125: 	year.nodeValue = dateTime.getFullYear();
n@125: 	month.nodeValue = dateTime.getMonth()+1;
n@125: 	day.nodeValue = dateTime.getDate();
n@125: 	hour.nodeValue = dateTime.getHours();
n@125: 	minute.nodeValue = dateTime.getMinutes();
n@125: 	secs.nodeValue = dateTime.getSeconds();
n@125: 	
n@125: 	var hold = document.createElement("datetime");
n@125: 	var date = document.createElement("date");
n@125: 	date.textContent = year.nodeValue+'/'+month.nodeValue+'/'+day.nodeValue;
n@125: 	var time = document.createElement("time");
n@125: 	time.textContent = hour.nodeValue+':'+minute.nodeValue+':'+secs.nodeValue;
n@125: 	
n@125: 	date.setAttributeNode(year);
n@125: 	date.setAttributeNode(month);
n@125: 	date.setAttributeNode(day);
n@125: 	time.setAttributeNode(hour);
n@125: 	time.setAttributeNode(minute);
n@125: 	time.setAttributeNode(secs);
n@125: 	
n@125: 	hold.appendChild(date);
n@125: 	hold.appendChild(time);
n@377: 	return hold;
n@125: 	
nicholas@135: }
nicholas@135: 
n@180: function Specification() {
n@180: 	// Handles the decoding of the project specification XML into a simple JavaScript Object.
n@180: 	
n@453: 	this.interface = null;
n@453: 	this.projectReturn = null;
n@453: 	this.randomiseOrder = null;
n@453: 	this.testPages = null;
n@453: 	this.pages = [];
n@453: 	this.metrics = null;
n@453: 	this.interfaces = null;
n@453: 	this.loudness = null;
n@453: 	this.errors = [];
n@453: 	this.schema = null;
n@380: 	
n@380: 	this.randomiseOrder = function(input)
n@380: 	{
n@380: 		// This takes an array of information and randomises the order
n@380: 		var N = input.length;
n@380: 		
n@380: 		var inputSequence = []; // For safety purposes: keep track of randomisation
n@380: 		for (var counter = 0; counter < N; ++counter) 
n@380: 			inputSequence.push(counter) // Fill array
n@380: 		var inputSequenceClone = inputSequence.slice(0);
n@380: 		
n@380: 		var holdArr = [];
n@380: 		var outputSequence = [];
n@380: 		for (var n=0; n<N; n++)
n@380: 		{
n@380: 			// First pick a random number
n@380: 			var r = Math.random();
n@380: 			// Multiply and floor by the number of elements left
n@380: 			r = Math.floor(r*input.length);
n@380: 			// Pick out that element and delete from the array
n@380: 			holdArr.push(input.splice(r,1)[0]);
n@380: 			// Do the same with sequence
n@380: 			outputSequence.push(inputSequence.splice(r,1)[0]);
n@380: 		}
n@380: 		console.log(inputSequenceClone.toString()); // print original array to console
n@380: 		console.log(outputSequence.toString()); 	// print randomised array to console
n@380: 		return holdArr;
n@380: 	};
n@453: 	
n@453: 	this.processAttribute = function(attribute,schema)
n@453: 	{
n@453: 		// attribute is the string returned from getAttribute on the XML
n@453: 		// schema is the <xs:attribute> node
n@453: 		if (schema.getAttribute('name') == undefined && schema.getAttribute('ref') != undefined)
n@453: 		{
n@453: 			schema = this.schema.getElementsByName(schema.getAttribute('ref'))[0];
n@453: 		}
n@453: 		var defaultOpt = schema.getAttribute('default');
n@453: 		if (attribute == null) {
n@453: 			attribute = defaultOpt;
n@453: 		}
n@453: 		var dataType = schema.getAttribute('type');
n@453: 		if (typeof dataType == "string") { dataType = dataType.substr(3);}
n@453: 		else {dataType = "string";}
n@453: 		if (attribute == null)
n@453: 		{
n@453: 			return attribute;
n@453: 		}
n@453: 		switch(dataType)
n@453: 		{
n@453: 		case "boolean":
n@453: 			if (attribute == 'true'){attribute = true;}else{attribute=false;}
n@453: 			break;
n@453: 		case "negativeInteger":
n@453: 		case "positiveInteger":
n@453: 		case "nonNegativeInteger":
n@453: 		case "nonPositiveInteger":
n@453: 		case "integer":
n@453: 		case "decimal":
n@453: 		case "short":
n@453: 			attribute = Number(attribute);
n@453: 			break;
n@453: 		case "string":
n@453: 		default:
n@453: 			attribute = String(attribute);
n@453: 			break;
n@453: 		}
n@453: 		return attribute;
n@453: 	};
n@180: 	
n@374: 	this.decode = function(projectXML) {
n@453: 		this.errors = [];
n@180: 		// projectXML - DOM Parsed document
nicholas@240: 		this.projectXML = projectXML.childNodes[0];
n@180: 		var setupNode = projectXML.getElementsByTagName('setup')[0];
n@453: 		var schemaSetup = this.schema.getElementsByName('setup')[0];
n@453: 		// First decode the attributes
n@453: 		var attributes = schemaSetup.getElementsByTagName('attribute');
n@453: 		for (var i in attributes)
n@297: 		{
n@453: 			if (isNaN(Number(i)) == true){break;}
n@453: 			var attributeName = attributes[i].getAttribute('name');
n@453: 			var projectAttr = setupNode.getAttribute(attributeName);
n@453: 			projectAttr = this.processAttribute(projectAttr,attributes[i]);
n@453: 			switch(typeof projectAttr)
n@410: 			{
n@453: 			case "number":
n@453: 			case "boolean":
n@453: 				eval('this.'+attributeName+' = '+projectAttr);
n@453: 				break;
n@453: 			case "string":
n@453: 				eval('this.'+attributeName+' = "'+projectAttr+'"');
n@453: 				break;
n@410: 			}
n@453: 			
n@374: 		}
n@374: 		
n@453: 		this.metrics = {
n@453: 			enabled: [],
n@453: 			decode: function(parent, xml) {
n@453: 				var children = xml.getElementsByTagName('metricenable');
n@453: 				for (var i in children) { 
n@453: 					if (isNaN(Number(i)) == true){break;}
n@453: 					this.enabled.push(children[i].textContent);
n@453: 				}
n@453: 			},
n@453: 			encode: function(root) {
n@453: 				var node = root.createElement('metric');
n@453: 				for (var i in this.enabled)
n@453: 				{
n@453: 					if (isNaN(Number(i)) == true){break;}
n@453: 					var child = root.createElement('metricenable');
n@453: 					child.textContent = this.enabled[i];
n@453: 					node.appendChild(child);
n@453: 				}
n@453: 				return node;
n@453: 			}
n@453: 		};
n@180: 		
n@453: 		this.metrics.decode(this,setupNode.getElementsByTagName('metric')[0]);
n@453: 		
n@453: 		// Now process the survey node options
n@453: 		var survey = setupNode.getElementsByTagName('survey');
n@453: 		var surveySchema = specification.schema.getElementsByName('survey')[0];
n@453: 		for (var i in survey) {
n@453: 			if (isNaN(Number(i)) == true){break;}
n@453: 			var location = survey[i].getAttribute('location');
n@453: 			if (location == 'pre' || location == 'before')
n@453: 			{
n@453: 				if (this.preTest != null){this.errors.push("Already a pre/before test survey defined! Ignoring second!!");}
n@453: 				else {
n@453: 					this.preTest = new this.surveyNode();
n@453: 					this.preTest.decode(this,survey[i],surveySchema);
n@453: 				}
n@453: 			} else if (location == 'post' || location == 'after') {
n@453: 				if (this.postTest != null){this.errors.push("Already a post/after test survey defined! Ignoring second!!");}
n@453: 				else {
n@453: 					this.postTest = new this.surveyNode();
n@453: 					this.postTest.decode(this,survey[i],surveySchema);
n@453: 				}
n@180: 			}
n@180: 		}
n@180: 		
n@453: 		var interfaceNode = setupNode.getElementsByTagName('interface');
n@453: 		if (interfaceNode.length > 1)
n@453: 		{
n@453: 			this.errors.push("Only one <interface> node in the <setup> node allowed! Others except first ingnored!");
n@453: 		}
n@453: 		this.interfaces = new this.interfaceNode();
n@453: 		if (interfaceNode.length != 0)
n@453: 		{
n@453: 			interfaceNode = interfaceNode[0];
n@453: 			this.interfaces.decode(this,interfaceNode,this.schema.getElementsByName('interface')[1]);
nicholas@213: 		}
nicholas@213: 		
n@453: 		// Page tags
n@453: 		var pageTags = projectXML.getElementsByTagName('page');
n@453: 		var pageSchema = this.schema.getElementsByName('page')[0];
n@453: 		for (var i=0; i<pageTags.length; i++)
n@297: 		{
n@453: 			var node = new this.page();
n@453: 			node.decode(this,pageTags[i],pageSchema);
n@453: 			this.pages.push(node);
n@297: 		}
n@180: 	};
n@180: 	
n@374: 	this.encode = function()
n@374: 	{
n@453: 		var root = document.implementation.createDocument(null,"waet");
n@374: 		
n@453: 		// Build setup node
n@374: 		
n@374: 		return root;
n@374: 	};
n@374: 	
n@453: 	this.surveyNode = function() {
n@453: 		this.location = null;
n@180: 		this.options = [];
n@453: 		this.schema = null;
n@180: 		
n@374: 		this.OptionNode = function() {
n@374: 			this.type = undefined;
n@453: 			this.schema = undefined;
n@374: 			this.id = undefined;
n@374: 			this.mandatory = undefined;
n@374: 			this.statement = undefined;
n@374: 			this.boxsize = undefined;
n@374: 			this.options = [];
n@374: 			this.min = undefined;
n@374: 			this.max = undefined;
n@374: 			this.step = undefined;
n@374: 			
n@453: 			this.decode = function(parent,child,schema)
n@374: 			{
n@453: 				this.schema = schema;
n@453: 				var attributeMap = schema.getElementsByTagName('attribute');
n@453: 				for (var i in attributeMap){
n@453: 					if(isNaN(Number(i)) == true){break;}
n@453: 					var attributeName = attributeMap[i].getAttribute('name') || attributeMap[i].getAttribute('ref');
n@453: 					var projectAttr = child.getAttribute(attributeName);
n@453: 					projectAttr = parent.processAttribute(projectAttr,attributeMap[i]);
n@453: 					switch(typeof projectAttr)
n@453: 					{
n@453: 					case "number":
n@453: 					case "boolean":
n@453: 						eval('this.'+attributeName+' = '+projectAttr);
n@453: 						break;
n@453: 					case "string":
n@453: 						eval('this.'+attributeName+' = "'+projectAttr+'"');
n@453: 						break;
n@374: 					}
n@453: 				}
n@453: 				this.statement = child.getElementsByTagName('statement')[0].textContent;
n@453: 				if (this.type == "checkbox" || this.type == "radio") {
n@453: 					var children = child.getElementsByTagName('option');
n@453: 					if (children.length == null) {
n@374: 						console.log('Malformed' +child.nodeName+ 'entry');
n@374: 						this.statement = 'Malformed' +child.nodeName+ 'entry';
n@374: 						this.type = 'statement';
n@374: 					} else {
n@374: 						this.options = [];
n@453: 						for (var i in children)
n@453: 						{
n@453: 							if (isNaN(Number(i))==true){break;}
n@453: 							this.options.push({
n@453: 								name: children[i].getAttribute('name'),
n@453: 								text: children[i].textContent
n@453: 							});
n@374: 						}
n@374: 					}
n@191: 				}
n@374: 			};
n@374: 			
n@374: 			this.exportXML = function(root)
n@374: 			{
n@453: 				var node = root.createElement('surveyelement');
n@453: 				node.setAttribute('type',this.type);
n@453: 				var statement = root.createElement('statement');
n@453: 				statement.textContent = this.statement;
n@453: 				node.appendChild(statement);
n@374: 				switch(this.type)
n@374: 				{
n@374: 				case "statement":
n@374: 					break;
n@374: 				case "question":
n@374: 					node.id = this.id;
n@374: 					node.setAttribute("mandatory",this.mandatory);
n@374: 					node.setAttribute("boxsize",this.boxsize);
n@374: 					break;
n@374: 				case "number":
n@374: 					node.id = this.id;
n@374: 					node.setAttribute("mandatory",this.mandatory);
n@374: 					node.setAttribute("min", this.min);
n@374: 					node.setAttribute("max", this.max);
n@374: 					node.setAttribute("step", this.step);
n@374: 					break;
n@374: 				case "checkbox":
n@374: 				case "radio":
n@374: 					node.id = this.id;
n@374: 					for (var i=0; i<this.options.length; i++)
n@374: 					{
n@374: 						var option = this.options[i];
n@374: 						var optionNode = root.createElement("option");
n@374: 						optionNode.setAttribute("name",option.name);
n@374: 						optionNode.textContent = option.text;
n@374: 						node.appendChild(optionNode);
n@374: 					}
n@374: 					break;
nicholas@188: 				}
n@374: 				return node;
n@374: 			};
n@374: 		};
n@453: 		this.decode = function(parent,xml,schema) {
n@453: 			this.schema = schema;
n@453: 			this.location = xml.getAttribute('location');
n@453: 			if (this.location == 'before'){this.location = 'pre';}
n@453: 			else if (this.location == 'after'){this.location = 'post';}
n@453: 			var surveyentrySchema = schema.getElementsByTagName('element')[0];
n@453: 			for (var i in xml.children)
n@453: 			{
n@453: 				if(isNaN(Number(i))==true){break;}
n@374: 				var node = new this.OptionNode();
n@453: 				node.decode(parent,xml.children[i],surveyentrySchema);
n@374: 				this.options.push(node);
n@453: 			}
n@453: 		};
n@453: 		this.encode = function(root) {
n@453: 			var node = root.createElement('survey');
n@453: 			node.setAttribute('location',this.location);
n@453: 			for (var i=0; i<this.options.length; i++)
n@453: 			{
n@453: 				node.appendChild(this.options[i].exportXML());
n@453: 			}
n@453: 			return node;
n@453: 		};
n@453: 	};
n@453: 	
n@453: 	this.interfaceNode = function()
n@453: 	{
n@453: 		this.title = null;
n@453: 		this.name = null;
n@453: 		this.options = [];
n@453: 		this.scales = [];
n@453: 		this.schema = null;
n@453: 		
n@453: 		this.decode = function(parent,xml,schema) {
n@453: 			this.schema = schema;
n@453: 			this.name = xml.getAttribute('name');
n@453: 			var titleNode = xml.getElementsByTagName('title');
n@453: 			if (titleNode.length == 1)
n@453: 			{
n@453: 				this.title = titleNode[0].textContent;
n@453: 			}
n@453: 			var interfaceOptionNodes = xml.getElementsByTagName('interfaceoption');
n@453: 			// Extract interfaceoption node schema
n@453: 			var interfaceOptionNodeSchema = schema.getElementsByTagName('element');
n@453: 			for (var i=0; i<interfaceOptionNodeSchema.length; i++) {
n@453: 				if (interfaceOptionNodeSchema[i].getAttribute('name') == 'interfaceoption') {
n@453: 					interfaceOptionNodeSchema = interfaceOptionNodeSchema[i];
n@453: 					break;
n@453: 				}
n@453: 			}
n@453: 			var attributeMap = interfaceOptionNodeSchema.getElementsByTagName('attribute');
n@453: 			for (var i=0; i<interfaceOptionNodes.length; i++)
n@453: 			{
n@453: 				var ioNode = interfaceOptionNodes[i];
n@453: 				var option = {};
n@453: 				for (var j=0; j<attributeMap.length; j++)
n@453: 				{
n@453: 					var attributeName = attributeMap[j].getAttribute('name') || attributeMap[j].getAttribute('ref');
n@453: 					var projectAttr = ioNode.getAttribute(attributeName);
n@453: 					projectAttr = parent.processAttribute(projectAttr,attributeMap[j]);
n@453: 					switch(typeof projectAttr)
n@453: 					{
n@453: 					case "number":
n@453: 					case "boolean":
n@453: 						eval('option.'+attributeName+' = '+projectAttr);
n@453: 						break;
n@453: 					case "string":
n@453: 						eval('option.'+attributeName+' = "'+projectAttr+'"');
n@453: 						break;
n@453: 					}
n@453: 				}
n@453: 				this.options.push(option);
n@453: 			}
n@453: 			
n@453: 			// Now the scales nodes
n@453: 			var scaleParent = xml.getElementsByTagName('scales');
n@453: 			if (scaleParent.length == 1) {
n@453: 				scaleParent = scaleParent[0];
n@453: 				for (var i=0; i<scaleParent.children.length; i++) {
n@453: 					var child = scaleParent.children[i];
n@453: 					this.scales.push({
n@453: 						text: child.textContent,
n@453: 						position: Number(child.getAttribute('position'))
n@453: 					});
n@374: 				}
n@180: 			}
n@180: 		};
n@453: 		
n@453: 		this.encode = function(root) {
n@453: 			
n@453: 		};
n@180: 	};
n@180: 	
n@453: 	this.page = function() {
n@374: 		this.presentedId = undefined;
n@374: 		this.id = undefined;
n@374: 		this.hostURL = undefined;
n@374: 		this.randomiseOrder = undefined;
n@374: 		this.loop = undefined;
n@453: 		this.showElementComments = undefined;
n@374: 		this.outsideReference = null;
n@410: 		this.loudness = null;
n@453: 		this.preTest = null;
n@453: 		this.postTest = null;
n@374: 		this.interfaces = [];
n@374: 		this.commentBoxPrefix = "Comment on track";
n@374: 		this.audioElements = [];
n@374: 		this.commentQuestions = [];
n@453: 		this.schema = null;
n@374: 		
n@453: 		this.decode = function(parent,xml,schema)
n@374: 		{
n@453: 			this.schema = schema;
n@453: 			var attributeMap = this.schema.getElementsByTagName('attribute');
n@453: 			for (var i=0; i<attributeMap.length; i++)
n@410: 			{
n@453: 				var attributeName = attributeMap[i].getAttribute('name') || attributeMap[i].getAttribute('ref');
n@453: 				var projectAttr = xml.getAttribute(attributeName);
n@453: 				projectAttr = parent.processAttribute(projectAttr,attributeMap[i]);
n@453: 				switch(typeof projectAttr)
nicholas@417: 				{
n@453: 				case "number":
n@453: 				case "boolean":
n@453: 					eval('this.'+attributeName+' = '+projectAttr);
n@453: 					break;
n@453: 				case "string":
n@453: 					eval('this.'+attributeName+' = "'+projectAttr+'"');
n@453: 					break;
n@374: 				}
n@374: 			}
n@374: 			
n@453: 			// Get the Comment Box Prefix
n@453: 			var CBP = xml.getElementsByTagName('commentboxprefix');
n@453: 			if (CBP.length != 0) {
n@453: 				this.commentBoxPrefix = CBP[0].textContent;
n@427: 			}
n@427: 			
n@453: 			// Now decode the interfaces
n@453: 			var interfaceNode = xml.getElementsByTagName('interface');
n@453: 			for (var i=0; i<interfaceNode.length; i++)
n@453: 			{
n@453: 				var node = new parent.interfaceNode();
n@453: 				node.decode(this,interfaceNode[i],parent.schema.getElementsByName('interface')[1]);
n@453: 				this.interfaces.push(node);
n@453: 			}
n@380: 			
n@453: 			// Now process the survey node options
n@453: 			var survey = xml.getElementsByTagName('survey');
n@453: 			var surveySchema = parent.schema.getElementsByName('survey')[0];
n@453: 			for (var i in survey) {
n@453: 				if (isNaN(Number(i)) == true){break;}
n@453: 				var location = survey[i].getAttribute('location');
n@453: 				if (location == 'pre' || location == 'before')
n@453: 				{
n@453: 					if (this.preTest != null){this.errors.push("Already a pre/before test survey defined! Ignoring second!!");}
n@453: 					else {
n@453: 						this.preTest = new parent.surveyNode();
n@453: 						this.preTest.decode(parent,survey[i],surveySchema);
n@453: 					}
n@453: 				} else if (location == 'post' || location == 'after') {
n@453: 					if (this.postTest != null){this.errors.push("Already a post/after test survey defined! Ignoring second!!");}
n@453: 					else {
n@453: 						this.postTest = new parent.surveyNode();
n@453: 						this.postTest.decode(parent,survey[i],surveySchema);
n@453: 					}
n@453: 				}
n@453: 			}
n@453: 			
n@453: 			// Now process the audioelement tags
n@453: 			var audioElements = xml.getElementsByTagName('audioelement');
n@453: 			var audioElementSchema = parent.schema.getElementsByName('audioelement')[0];
n@453: 			for (var i=0; i<audioElements.length; i++)
n@453: 			{
n@453: 				var node = new this.audioElementNode();
n@453: 				node.decode(this,audioElements[i],audioElementSchema);
n@453: 				this.audioElements.push(node);
n@453: 			}
n@453: 			
n@453: 			// Now decode the commentquestions
n@453: 			var commentQuestions = xml.getElementsByTagName('commentquestion');
n@453: 			var commentQuestionSchema = parent.schema.getElementsByName('commentquestion')[0];
n@453: 			for (var i=0; i<commentQuestions.length; i++)
n@453: 			{
n@374: 				var node = new this.commentQuestionNode();
n@453: 				node.decode(parent,commentQuestions[i],commentQuestionSchema);
n@374: 				this.commentQuestions.push(node);
n@180: 			}
n@180: 		};
n@180: 		
n@374: 		this.encode = function(root)
n@374: 		{
n@374: 			var AHNode = root.createElement("audioHolder");
n@374: 			AHNode.id = this.id;
n@374: 			AHNode.setAttribute("hostURL",this.hostURL);
n@374: 			AHNode.setAttribute("sampleRate",this.sampleRate);
n@374: 			AHNode.setAttribute("randomiseOrder",this.randomiseOrder);
n@374: 			AHNode.setAttribute("repeatCount",this.repeatCount);
n@374: 			AHNode.setAttribute("loop",this.loop);
n@374: 			AHNode.setAttribute("elementComments",this.elementComments);
n@410: 			if(this.loudness != null) {AHNode.setAttribute("loudness",this.loudness);}
nicholas@417: 			if(this.initialPosition != null) {
nicholas@417: 				AHNode.setAttribute("loudness",this.initialPosition*100);
nicholas@417: 				}
n@374: 			for (var i=0; i<this.interfaces.length; i++)
n@324: 			{
n@374: 				AHNode.appendChild(this.interfaces[i].encode(root));
n@374: 			}
n@374: 			
n@374: 			for (var i=0; i<this.audioElements.length; i++) {
n@374: 				AHNode.appendChild(this.audioElements[i].encode(root));
n@374: 			}
n@374: 			// Create <CommentQuestion>
n@374: 			for (var i=0; i<this.commentQuestions.length; i++)
n@374: 			{
n@374: 				AHNode.appendChild(this.commentQuestions[i].exportXML(root));
n@374: 			}
n@374: 			
n@374: 			// Create <PreTest>
n@374: 			var AHPreTest = root.createElement("PreTest");
n@374: 			for (var i=0; i<this.preTest.options.length; i++)
n@374: 			{
n@374: 				AHPreTest.appendChild(this.preTest.options[i].exportXML(root));
n@374: 			}
n@374: 			
n@374: 			var AHPostTest = root.createElement("PostTest");
n@374: 			for (var i=0; i<this.postTest.options.length; i++)
n@374: 			{
n@374: 				AHPostTest.appendChild(this.postTest.options[i].exportXML(root));
n@374: 			}
n@374: 			AHNode.appendChild(AHPreTest);
n@374: 			AHNode.appendChild(AHPostTest);
n@374: 			return AHNode;
n@374: 		};
n@374: 		
n@453: 		this.commentQuestionNode = function() {
n@453: 			this.id = null;
n@453: 			this.type = undefined;
n@374: 			this.options = [];
n@453: 			this.statement = undefined;
n@453: 			this.schema = null;
n@453: 			this.decode = function(parent,xml,schema)
n@374: 			{
n@453: 				this.id = xml.id;
n@453: 				this.type = xml.getAttribute('type');
n@453: 				this.statement = xml.getElementsByTagName('statement')[0].textContent;
n@453: 				var optNodes = xml.getElementsByTagName('option');
n@453: 				for (var i=0; i<optNodes.length; i++)
n@453: 				{
n@453: 					var optNode = optNodes[i];
n@453: 					this.options.push({
n@453: 						name: optNode.getAttribute('name'),
n@453: 						text: optNode.textContent
n@453: 					});
n@374: 				}
n@374: 			};
n@453: 			
n@374: 			this.encode = function(root)
n@374: 			{
n@453: 				
n@374: 			};
n@374: 		};
n@374: 		
n@374: 		this.audioElementNode = function() {
n@374: 			this.url = null;
n@374: 			this.id = null;
n@374: 			this.parent = null;
n@453: 			this.type = null;
n@374: 			this.marker = false;
n@374: 			this.enforce = false;
n@400: 			this.gain = 1.0;
n@453: 			this.schema = null;
n@453: 			this.parent = null;
n@453: 			this.decode = function(parent,xml,schema)
n@374: 			{
n@453: 				this.schema = schema;
n@374: 				this.parent = parent;
n@453: 				var attributeMap = this.schema.getElementsByTagName('attribute');
n@453: 				for (var i=0; i<attributeMap.length; i++)
n@400: 				{
n@453: 					var attributeName = attributeMap[i].getAttribute('name') || attributeMap[i].getAttribute('ref');
n@453: 					var projectAttr = xml.getAttribute(attributeName);
n@453: 					projectAttr = specification.processAttribute(projectAttr,attributeMap[i]);
n@453: 					switch(typeof projectAttr)
n@374: 					{
n@453: 					case "number":
n@453: 					case "boolean":
n@453: 						eval('this.'+attributeName+' = '+projectAttr);
n@453: 						break;
n@453: 					case "string":
n@453: 						eval('this.'+attributeName+' = "'+projectAttr+'"');
n@453: 						break;
n@324: 					}
n@324: 				}
n@453: 				
n@374: 			};
n@374: 			this.encode = function(root)
n@374: 			{
n@374: 				var AENode = root.createElement("audioElements");
n@374: 				AENode.id = this.id;
n@374: 				AENode.setAttribute("url",this.url);
n@374: 				AENode.setAttribute("type",this.type);
n@400: 				AENode.setAttribute("gain",linearToDecibel(this.gain));
n@374: 				if (this.marker != false)
n@374: 				{
n@374: 					AENode.setAttribute("marker",this.marker*100);
n@374: 				}
n@374: 				return AENode;
n@374: 			};
n@180: 		};
n@180: 	};
n@180: }
n@374: 			
n@182: function Interface(specificationObject) {
n@180: 	// This handles the bindings between the interface and the audioEngineContext;
n@182: 	this.specification = specificationObject;
n@182: 	this.insertPoint = document.getElementById("topLevelBody");
n@180: 	
n@453: 	this.newPage = function(audioHolderObject,store)
n@375: 	{
n@453: 		audioEngineContext.newTestPage(store);
n@375: 		audioEngineContext.loopPlayback = audioHolderObject.loop;
n@375: 		// Delete any previous audioObjects associated with the audioEngine
n@375: 		audioEngineContext.audioObjects = [];
n@375: 		interfaceContext.deleteCommentBoxes();
n@375: 		interfaceContext.deleteCommentQuestions();
n@453: 		loadTest(audioHolderObject,store);
n@375: 	};
n@375: 	
n@182: 	// Bounded by interface!!
n@182: 	// Interface object MUST have an exportXMLDOM method which returns the various DOM levels
n@182: 	// For example, APE returns  the slider position normalised in a <value> tag.
n@182: 	this.interfaceObjects = [];
n@182: 	this.interfaceObject = function(){};
n@182: 	
n@302: 	this.resizeWindow = function(event)
n@302: 	{
n@395: 		popup.resize(event);
n@302: 		for(var i=0; i<this.commentBoxes.length; i++)
n@302: 		{this.commentBoxes[i].resize();}
n@302: 		for(var i=0; i<this.commentQuestions.length; i++)
n@302: 		{this.commentQuestions[i].resize();}
n@302: 		try
n@302: 		{
n@302: 			resizeWindow(event);
n@302: 		}
n@302: 		catch(err)
n@302: 		{
n@302: 			console.log("Warning - Interface does not have Resize option");
n@302: 			console.log(err);
n@302: 		}
n@302: 	};
n@302: 	
n@356: 	this.returnNavigator = function()
n@356: 	{
n@356: 		var node = document.createElement("navigator");
n@356: 		var platform = document.createElement("platform");
n@356: 		platform.textContent = navigator.platform;
n@356: 		var vendor = document.createElement("vendor");
n@356: 		vendor.textContent = navigator.vendor;
n@356: 		var userAgent = document.createElement("uagent");
n@356: 		userAgent.textContent = navigator.userAgent;
n@356: 		node.appendChild(platform);
n@356: 		node.appendChild(vendor);
n@356: 		node.appendChild(userAgent);
n@356: 		return node;
n@356: 	};
n@356: 	
n@182: 	this.commentBoxes = [];
n@193: 	this.elementCommentBox = function(audioObject) {
n@182: 		var element = audioObject.specification;
n@183: 		this.audioObject = audioObject;
n@182: 		this.id = audioObject.id;
n@182: 		var audioHolderObject = audioObject.specification.parent;
n@182: 		// Create document objects to hold the comment boxes
n@182: 		this.trackComment = document.createElement('div');
n@182: 		this.trackComment.className = 'comment-div';
n@182: 		this.trackComment.id = 'comment-div-'+audioObject.id;
n@182: 		// Create a string next to each comment asking for a comment
n@183: 		this.trackString = document.createElement('span');
n@183: 		this.trackString.innerHTML = audioHolderObject.commentBoxPrefix+' '+audioObject.id;
n@182: 		// Create the HTML5 comment box 'textarea'
n@183: 		this.trackCommentBox = document.createElement('textarea');
n@183: 		this.trackCommentBox.rows = '4';
n@183: 		this.trackCommentBox.cols = '100';
n@183: 		this.trackCommentBox.name = 'trackComment'+audioObject.id;
n@183: 		this.trackCommentBox.className = 'trackComment';
n@182: 		var br = document.createElement('br');
n@182: 		// Add to the holder.
n@183: 		this.trackComment.appendChild(this.trackString);
n@182: 		this.trackComment.appendChild(br);
n@183: 		this.trackComment.appendChild(this.trackCommentBox);
n@183: 		
n@183: 		this.exportXMLDOM = function() {
n@183: 			var root = document.createElement('comment');
n@183: 			if (this.audioObject.specification.parent.elementComments) {
n@183: 				var question = document.createElement('question');
n@183: 				question.textContent = this.trackString.textContent;
n@183: 				var response = document.createElement('response');
n@183: 				response.textContent = this.trackCommentBox.value;
nicholas@249: 				console.log("Comment frag-"+this.id+": "+response.textContent);
n@183: 				root.appendChild(question);
n@183: 				root.appendChild(response);
n@183: 			}
n@183: 			return root;
n@183: 		};
n@302: 		this.resize = function()
n@302: 		{
n@302: 			var boxwidth = (window.innerWidth-100)/2;
n@302: 			if (boxwidth >= 600)
n@302: 			{
n@302: 				boxwidth = 600;
n@302: 			}
n@302: 			else if (boxwidth < 400)
n@302: 			{
n@302: 				boxwidth = 400;
n@302: 			}
n@302: 			this.trackComment.style.width = boxwidth+"px";
n@302: 			this.trackCommentBox.style.width = boxwidth-6+"px";
n@302: 		};
n@302: 		this.resize();
n@182: 	};
n@182: 	
n@193: 	this.commentQuestions = [];
n@193: 	
n@193: 	this.commentBox = function(commentQuestion) {
n@193: 		this.specification = commentQuestion;
n@193: 		// Create document objects to hold the comment boxes
n@193: 		this.holder = document.createElement('div');
n@193: 		this.holder.className = 'comment-div';
n@193: 		// Create a string next to each comment asking for a comment
n@193: 		this.string = document.createElement('span');
n@453: 		this.string.innerHTML = commentQuestion.statement;
n@193: 		// Create the HTML5 comment box 'textarea'
n@193: 		this.textArea = document.createElement('textarea');
n@193: 		this.textArea.rows = '4';
n@193: 		this.textArea.cols = '100';
n@193: 		this.textArea.className = 'trackComment';
n@193: 		var br = document.createElement('br');
n@193: 		// Add to the holder.
n@193: 		this.holder.appendChild(this.string);
n@193: 		this.holder.appendChild(br);
n@193: 		this.holder.appendChild(this.textArea);
n@193: 		
n@193: 		this.exportXMLDOM = function() {
n@193: 			var root = document.createElement('comment');
n@193: 			root.id = this.specification.id;
n@193: 			root.setAttribute('type',this.specification.type);
n@193: 			root.textContent = this.textArea.value;
b@254: 			console.log("Question: "+this.string.textContent);
b@254: 			console.log("Response: "+root.textContent);
n@193: 			return root;
n@193: 		};
n@302: 		this.resize = function()
n@302: 		{
n@302: 			var boxwidth = (window.innerWidth-100)/2;
n@302: 			if (boxwidth >= 600)
n@302: 			{
n@302: 				boxwidth = 600;
n@302: 			}
n@302: 			else if (boxwidth < 400)
n@302: 			{
n@302: 				boxwidth = 400;
n@302: 			}
n@302: 			this.holder.style.width = boxwidth+"px";
n@302: 			this.textArea.style.width = boxwidth-6+"px";
n@302: 		};
n@302: 		this.resize();
n@193: 	};
n@193: 	
n@193: 	this.radioBox = function(commentQuestion) {
n@193: 		this.specification = commentQuestion;
n@193: 		// Create document objects to hold the comment boxes
n@193: 		this.holder = document.createElement('div');
n@193: 		this.holder.className = 'comment-div';
n@193: 		// Create a string next to each comment asking for a comment
n@193: 		this.string = document.createElement('span');
n@193: 		this.string.innerHTML = commentQuestion.statement;
n@193: 		var br = document.createElement('br');
n@193: 		// Add to the holder.
n@193: 		this.holder.appendChild(this.string);
n@193: 		this.holder.appendChild(br);
n@193: 		this.options = [];
n@193: 		this.inputs = document.createElement('div');
n@193: 		this.span = document.createElement('div');
n@193: 		this.inputs.align = 'center';
n@193: 		this.inputs.style.marginLeft = '12px';
n@193: 		this.span.style.marginLeft = '12px';
n@193: 		this.span.align = 'center';
n@193: 		this.span.style.marginTop = '15px';
n@193: 		
n@193: 		var optCount = commentQuestion.options.length;
n@453: 		for (var optNode of commentQuestion.options)
n@193: 		{
n@193: 			var div = document.createElement('div');
n@301: 			div.style.width = '80px';
n@193: 			div.style.float = 'left';
n@193: 			var input = document.createElement('input');
n@193: 			input.type = 'radio';
n@193: 			input.name = commentQuestion.id;
n@453: 			input.setAttribute('setvalue',optNode.name);
n@193: 			input.className = 'comment-radio';
n@193: 			div.appendChild(input);
n@193: 			this.inputs.appendChild(div);
n@193: 			
n@193: 			
n@193: 			div = document.createElement('div');
n@301: 			div.style.width = '80px';
n@193: 			div.style.float = 'left';
n@193: 			div.align = 'center';
n@193: 			var span = document.createElement('span');
n@453: 			span.textContent = optNode.text;
n@193: 			span.className = 'comment-radio-span';
n@193: 			div.appendChild(span);
n@193: 			this.span.appendChild(div);
n@193: 			this.options.push(input);
n@193: 		}
n@193: 		this.holder.appendChild(this.span);
n@193: 		this.holder.appendChild(this.inputs);
n@193: 		
n@193: 		this.exportXMLDOM = function() {
n@193: 			var root = document.createElement('comment');
n@193: 			root.id = this.specification.id;
n@193: 			root.setAttribute('type',this.specification.type);
n@193: 			var question = document.createElement('question');
n@193: 			question.textContent = this.string.textContent;
n@193: 			var response = document.createElement('response');
n@193: 			var i=0;
n@193: 			while(this.options[i].checked == false) {
n@193: 				i++;
n@193: 				if (i >= this.options.length) {
n@193: 					break;
n@193: 				}
n@193: 			}
n@193: 			if (i >= this.options.length) {
n@193: 				response.textContent = 'null';
n@193: 			} else {
n@193: 				response.textContent = this.options[i].getAttribute('setvalue');
n@193: 				response.setAttribute('number',i);
n@193: 			}
n@195: 			console.log('Comment: '+question.textContent);
n@195: 			console.log('Response: '+response.textContent);
n@193: 			root.appendChild(question);
n@193: 			root.appendChild(response);
n@193: 			return root;
n@193: 		};
n@302: 		this.resize = function()
n@302: 		{
n@302: 			var boxwidth = (window.innerWidth-100)/2;
n@302: 			if (boxwidth >= 600)
n@302: 			{
n@302: 				boxwidth = 600;
n@302: 			}
n@302: 			else if (boxwidth < 400)
n@302: 			{
n@302: 				boxwidth = 400;
n@302: 			}
n@302: 			this.holder.style.width = boxwidth+"px";
n@302: 			var text = this.holder.children[2];
n@302: 			var options = this.holder.children[3];
n@302: 			var optCount = options.children.length;
n@302: 			var spanMargin = Math.floor(((boxwidth-20-(optCount*80))/(optCount))/2)+'px';
n@302: 			var options = options.firstChild;
n@302: 			var text = text.firstChild;
n@302: 			options.style.marginRight = spanMargin;
n@302: 			options.style.marginLeft = spanMargin;
n@302: 			text.style.marginRight = spanMargin;
n@302: 			text.style.marginLeft = spanMargin;
n@302: 			while(options.nextSibling != undefined)
n@302: 			{
n@302: 				options = options.nextSibling;
n@302: 				text = text.nextSibling;
n@302: 				options.style.marginRight = spanMargin;
n@302: 				options.style.marginLeft = spanMargin;
n@302: 				text.style.marginRight = spanMargin;
n@302: 				text.style.marginLeft = spanMargin;
n@302: 			}
n@302: 		};
n@302: 		this.resize();
n@193: 	};
n@193: 	
n@195: 	this.checkboxBox = function(commentQuestion) {
n@195: 		this.specification = commentQuestion;
n@195: 		// Create document objects to hold the comment boxes
n@195: 		this.holder = document.createElement('div');
n@195: 		this.holder.className = 'comment-div';
n@195: 		// Create a string next to each comment asking for a comment
n@195: 		this.string = document.createElement('span');
n@195: 		this.string.innerHTML = commentQuestion.statement;
n@195: 		var br = document.createElement('br');
n@195: 		// Add to the holder.
n@195: 		this.holder.appendChild(this.string);
n@195: 		this.holder.appendChild(br);
n@195: 		this.options = [];
n@195: 		this.inputs = document.createElement('div');
n@195: 		this.span = document.createElement('div');
n@195: 		this.inputs.align = 'center';
n@195: 		this.inputs.style.marginLeft = '12px';
n@195: 		this.span.style.marginLeft = '12px';
n@195: 		this.span.align = 'center';
n@195: 		this.span.style.marginTop = '15px';
n@195: 		
n@195: 		var optCount = commentQuestion.options.length;
n@195: 		for (var i=0; i<optCount; i++)
n@195: 		{
n@195: 			var div = document.createElement('div');
n@301: 			div.style.width = '80px';
n@195: 			div.style.float = 'left';
n@195: 			var input = document.createElement('input');
n@195: 			input.type = 'checkbox';
n@195: 			input.name = commentQuestion.id;
n@195: 			input.setAttribute('setvalue',commentQuestion.options[i].name);
n@195: 			input.className = 'comment-radio';
n@195: 			div.appendChild(input);
n@195: 			this.inputs.appendChild(div);
n@195: 			
n@195: 			
n@195: 			div = document.createElement('div');
n@301: 			div.style.width = '80px';
n@195: 			div.style.float = 'left';
n@195: 			div.align = 'center';
n@195: 			var span = document.createElement('span');
n@195: 			span.textContent = commentQuestion.options[i].text;
n@195: 			span.className = 'comment-radio-span';
n@195: 			div.appendChild(span);
n@195: 			this.span.appendChild(div);
n@195: 			this.options.push(input);
n@195: 		}
n@195: 		this.holder.appendChild(this.span);
n@195: 		this.holder.appendChild(this.inputs);
n@195: 		
n@195: 		this.exportXMLDOM = function() {
n@195: 			var root = document.createElement('comment');
n@195: 			root.id = this.specification.id;
n@195: 			root.setAttribute('type',this.specification.type);
n@195: 			var question = document.createElement('question');
n@195: 			question.textContent = this.string.textContent;
n@195: 			root.appendChild(question);
n@195: 			console.log('Comment: '+question.textContent);
n@195: 			for (var i=0; i<this.options.length; i++) {
n@195: 				var response = document.createElement('response');
n@195: 				response.textContent = this.options[i].checked;
n@195: 				response.setAttribute('name',this.options[i].getAttribute('setvalue'));
n@195: 				root.appendChild(response);
n@195: 				console.log('Response '+response.getAttribute('name') +': '+response.textContent);
n@195: 			}
n@195: 			return root;
n@195: 		};
n@302: 		this.resize = function()
n@302: 		{
n@302: 			var boxwidth = (window.innerWidth-100)/2;
n@302: 			if (boxwidth >= 600)
n@302: 			{
n@302: 				boxwidth = 600;
n@302: 			}
n@302: 			else if (boxwidth < 400)
n@302: 			{
n@302: 				boxwidth = 400;
n@302: 			}
n@302: 			this.holder.style.width = boxwidth+"px";
n@302: 			var text = this.holder.children[2];
n@302: 			var options = this.holder.children[3];
n@302: 			var optCount = options.children.length;
n@302: 			var spanMargin = Math.floor(((boxwidth-20-(optCount*80))/(optCount))/2)+'px';
n@302: 			var options = options.firstChild;
n@302: 			var text = text.firstChild;
n@302: 			options.style.marginRight = spanMargin;
n@302: 			options.style.marginLeft = spanMargin;
n@302: 			text.style.marginRight = spanMargin;
n@302: 			text.style.marginLeft = spanMargin;
n@302: 			while(options.nextSibling != undefined)
n@302: 			{
n@302: 				options = options.nextSibling;
n@302: 				text = text.nextSibling;
n@302: 				options.style.marginRight = spanMargin;
n@302: 				options.style.marginLeft = spanMargin;
n@302: 				text.style.marginRight = spanMargin;
n@302: 				text.style.marginLeft = spanMargin;
n@302: 			}
n@302: 		};
n@302: 		this.resize();
n@195: 	};
n@193: 
n@182: 	this.createCommentBox = function(audioObject) {
n@193: 		var node = new this.elementCommentBox(audioObject);
n@182: 		this.commentBoxes.push(node);
n@182: 		audioObject.commentDOM = node;
n@182: 		return node;
n@182: 	};
n@182: 	
n@182: 	this.sortCommentBoxes = function() {
n@467: 		this.commentBoxes.sort(function(a,b){return a.id - b.id;});
n@182: 	};
n@182: 	
n@182: 	this.showCommentBoxes = function(inject, sort) {
n@182: 		if (sort) {interfaceContext.sortCommentBoxes();}
n@467: 		for (var box of interfaceContext.commentBoxes) {
n@467: 			inject.appendChild(box.trackComment);
n@182: 		}
n@182: 	};
n@193: 	
nicholas@211: 	this.deleteCommentBoxes = function() {
nicholas@211: 		this.commentBoxes = [];
nicholas@237: 	};
nicholas@211: 	
n@193: 	this.createCommentQuestion = function(element) {
n@193: 		var node;
n@453: 		if (element.type == 'question') {
n@193: 			node = new this.commentBox(element);
n@193: 		} else if (element.type == 'radio') {
n@193: 			node = new this.radioBox(element);
n@195: 		} else if (element.type == 'checkbox') {
n@195: 			node = new this.checkboxBox(element);
n@193: 		}
n@193: 		this.commentQuestions.push(node);
n@193: 		return node;
n@193: 	};
n@201: 	
nicholas@237: 	this.deleteCommentQuestions = function()
nicholas@237: 	{
nicholas@237: 		this.commentQuestions = [];
nicholas@237: 	};
nicholas@237: 	
n@201: 	this.playhead = new function()
n@201: 	{
n@201: 		this.object = document.createElement('div');
n@201: 		this.object.className = 'playhead';
n@201: 		this.object.align = 'left';
n@201: 		var curTime = document.createElement('div');
n@201: 		curTime.style.width = '50px';
n@201: 		this.curTimeSpan = document.createElement('span');
n@201: 		this.curTimeSpan.textContent = '00:00';
n@201: 		curTime.appendChild(this.curTimeSpan);
n@201: 		this.object.appendChild(curTime);
n@201: 		this.scrubberTrack = document.createElement('div');
n@201: 		this.scrubberTrack.className = 'playhead-scrub-track';
n@201: 		
n@201: 		this.scrubberHead = document.createElement('div');
n@201: 		this.scrubberHead.id = 'playhead-scrubber';
n@201: 		this.scrubberTrack.appendChild(this.scrubberHead);
n@201: 		this.object.appendChild(this.scrubberTrack);
n@201: 		
n@201: 		this.timePerPixel = 0;
n@201: 		this.maxTime = 0;
n@201: 		
n@204: 		this.playbackObject;
n@204: 		
n@204: 		this.setTimePerPixel = function(audioObject) {
n@201: 			//maxTime must be in seconds
n@204: 			this.playbackObject = audioObject;
n@379: 			this.maxTime = audioObject.buffer.buffer.duration;
n@201: 			var width = 490; //500 - 10, 5 each side of the tracker head
n@204: 			this.timePerPixel = this.maxTime/490;
n@204: 			if (this.maxTime < 60) {
n@201: 				this.curTimeSpan.textContent = '0.00';
n@201: 			} else {
n@201: 				this.curTimeSpan.textContent = '00:00';
n@201: 			}
n@201: 		};
n@201: 		
n@204: 		this.update = function() {
n@201: 			// Update the playhead position, startPlay must be called
n@201: 			if (this.timePerPixel > 0) {
n@204: 				var time = this.playbackObject.getCurrentPosition();
nicholas@267: 				if (time > 0) {
nicholas@267: 					var width = 490;
nicholas@267: 					var pix = Math.floor(time/this.timePerPixel);
nicholas@267: 					this.scrubberHead.style.left = pix+'px';
nicholas@267: 					if (this.maxTime > 60.0) {
nicholas@267: 						var secs = time%60;
nicholas@267: 						var mins = Math.floor((time-secs)/60);
nicholas@267: 						secs = secs.toString();
nicholas@267: 						secs = secs.substr(0,2);
nicholas@267: 						mins = mins.toString();
nicholas@267: 						this.curTimeSpan.textContent = mins+':'+secs;
nicholas@267: 					} else {
nicholas@267: 						time = time.toString();
nicholas@267: 						this.curTimeSpan.textContent = time.substr(0,4);
nicholas@267: 					}
n@201: 				} else {
nicholas@267: 					this.scrubberHead.style.left = '0px';
nicholas@267: 					if (this.maxTime < 60) {
nicholas@267: 						this.curTimeSpan.textContent = '0.00';
nicholas@267: 					} else {
nicholas@267: 						this.curTimeSpan.textContent = '00:00';
nicholas@267: 					}
n@201: 				}
n@201: 			}
n@201: 		};
n@204: 		
n@204: 		this.interval = undefined;
n@204: 		
n@204: 		this.start = function() {
n@204: 			if (this.playbackObject != undefined && this.interval == undefined) {
nicholas@267: 				if (this.maxTime < 60) {
nicholas@267: 					this.interval = setInterval(function(){interfaceContext.playhead.update();},10);
nicholas@267: 				} else {
nicholas@267: 					this.interval = setInterval(function(){interfaceContext.playhead.update();},100);
nicholas@267: 				}
n@204: 			}
n@204: 		};
n@204: 		this.stop = function() {
n@204: 			clearInterval(this.interval);
n@204: 			this.interval = undefined;
nicholas@267: 			if (this.maxTime < 60) {
nicholas@267: 				this.curTimeSpan.textContent = '0.00';
nicholas@267: 			} else {
nicholas@267: 				this.curTimeSpan.textContent = '00:00';
nicholas@267: 			}
n@204: 		};
n@201: 	};
nicholas@235: 	
nicholas@235: 	// Global Checkers
nicholas@235: 	// These functions will help enforce the checkers
nicholas@235: 	this.checkHiddenAnchor = function()
nicholas@235: 	{
n@453: 		for (var ao of audioEngineContext.audioObjects)
nicholas@235: 		{
n@453: 			if (ao.specification.type == "anchor")
nicholas@235: 			{
n@454: 				if (ao.interfaceDOM.getValue() > (ao.specification.marker/100) && ao.specification.marker > 0) {
n@453: 					// Anchor is not set below
n@453: 					console.log('Anchor node not below marker value');
n@453: 					alert('Please keep listening');
n@453: 					return false;
n@453: 				}
nicholas@235: 			}
nicholas@235: 		}
nicholas@235: 		return true;
nicholas@235: 	};
nicholas@235: 	
nicholas@235: 	this.checkHiddenReference = function()
nicholas@235: 	{
n@453: 		for (var ao of audioEngineContext.audioObjects)
nicholas@235: 		{
n@453: 			if (ao.specification.type == "reference")
nicholas@235: 			{
n@454: 				if (ao.interfaceDOM.getValue() < (ao.specification.marker/100) && ao.specification.marker > 0) {
n@453: 					// Anchor is not set below
n@453: 					console.log('Reference node not below marker value');
n@453: 					alert('Please keep listening');
n@453: 					return false;
n@453: 				}
nicholas@235: 			}
nicholas@235: 		}
nicholas@235: 		return true;
nicholas@235: 	};
n@366: 	
n@366: 	this.checkFragmentsFullyPlayed = function ()
n@366: 	{
n@366: 		// Checks the entire file has been played back
n@366: 		// NOTE ! This will return true IF playback is Looped!!!
n@366: 		if (audioEngineContext.loopPlayback)
n@366: 		{
n@366: 			console.log("WARNING - Looped source: Cannot check fragments are fully played");
n@366: 			return true;
n@366: 		}
n@366: 		var check_pass = true;
n@366: 		var error_obj = [];
n@366: 		for (var i = 0; i<audioEngineContext.audioObjects.length; i++)
n@366: 		{
n@366: 			var object = audioEngineContext.audioObjects[i];
nicholas@415: 			var time = object.buffer.buffer.duration;
n@366: 			var metric = object.metric;
n@366: 			var passed = false;
n@366: 			for (var j=0; j<metric.listenTracker.length; j++)
n@366: 			{
n@366: 				var bt = metric.listenTracker[j].getElementsByTagName('buffertime');
n@366: 				var start_time = Number(bt[0].getAttribute('start'));
n@366: 				var stop_time = Number(bt[0].getAttribute('stop'));
n@366: 				var delta = stop_time - start_time;
n@366: 				if (delta >= time)
n@366: 				{
n@366: 					passed = true;
n@366: 					break;
n@366: 				}
n@366: 			}
n@366: 			if (passed == false)
n@366: 			{
n@366: 				check_pass = false;
n@469: 				console.log("Continue listening to track-"+audioEngineContext.audioObjects.interfaceDOM.getPresentedId());
n@469: 				error_obj.push(audioEngineContext.audioObjects.interfaceDOM.getPresentedId());
n@366: 			}
n@366: 		}
n@366: 		if (check_pass == false)
n@366: 		{
nicholas@415: 			var str_start = "You have not completely listened to fragments ";
n@366: 			for (var i=0; i<error_obj.length; i++)
n@366: 			{
n@366: 				str_start += error_obj[i];
n@366: 				if (i != error_obj.length-1)
n@366: 				{
n@366: 					str_start += ', ';
n@366: 				}
n@366: 			}
n@366: 			str_start += ". Please keep listening";
n@366: 			console.log("[ALERT]: "+str_start);
n@366: 			alert(str_start);
n@366: 		}
n@366: 	};
nicholas@421: 	this.checkAllMoved = function()
nicholas@421: 	{
nicholas@421: 		var str = "You have not moved ";
nicholas@421: 		var failed = [];
n@469: 		for (var ao of audioEngineContext.audioObjects)
nicholas@421: 		{
n@469: 			if(ao.metric.wasMoved == false && ao.interfaceDOM.canMove() == true)
nicholas@421: 			{
n@469: 				failed.push(ao.interfaceDOM.getPresentedId());
nicholas@421: 			}
nicholas@421: 		}
nicholas@421: 		if (failed.length == 0)
nicholas@421: 		{
nicholas@421: 			return true;
nicholas@421: 		} else if (failed.length == 1)
nicholas@421: 		{
nicholas@421: 			str += 'track '+failed[0];
nicholas@421: 		} else {
nicholas@421: 			str += 'tracks ';
nicholas@421: 			for (var i=0; i<failed.length-1; i++)
nicholas@421: 			{
nicholas@421: 				str += failed[i]+', ';
nicholas@421: 			}
nicholas@421: 			str += 'and '+failed[i];
nicholas@421: 		}
nicholas@421: 		str +='.';
nicholas@421: 		alert(str);
nicholas@421: 		console.log(str);
nicholas@421: 		return false;
nicholas@421: 	};
nicholas@421: 	this.checkAllPlayed = function()
nicholas@421: 	{
nicholas@421: 		var str = "You have not played ";
nicholas@421: 		var failed = [];
n@469: 		for (var ao of audioEngineContext.audioObjects)
nicholas@421: 		{
n@469: 			if(ao.metric.wasListenedTo == false)
nicholas@421: 			{
n@469: 				failed.push(ao.interfaceDOM.getPresentedId());
nicholas@421: 			}
nicholas@421: 		}
nicholas@421: 		if (failed.length == 0)
nicholas@421: 		{
nicholas@421: 			return true;
nicholas@421: 		} else if (failed.length == 1)
nicholas@421: 		{
nicholas@421: 			str += 'track '+failed[0];
nicholas@421: 		} else {
nicholas@421: 			str += 'tracks ';
nicholas@421: 			for (var i=0; i<failed.length-1; i++)
nicholas@421: 			{
nicholas@421: 				str += failed[i]+', ';
nicholas@421: 			}
nicholas@421: 			str += 'and '+failed[i];
nicholas@421: 		}
nicholas@421: 		str +='.';
nicholas@421: 		alert(str);
nicholas@421: 		console.log(str);
nicholas@421: 		return false;
nicholas@421: 	};
n@453: }
n@453: 
n@453: function Storage()
n@453: {
n@453: 	// Holds results in XML format until ready for collection
n@453: 	this.globalPreTest = null;
n@453: 	this.globalPostTest = null;
n@453: 	this.testPages = [];
n@453: 	this.document = document.implementation.createDocument(null,"waetresult");
n@453: 	this.root = this.document.children[0];
n@453: 	this.state = 0;
n@453: 	
n@453: 	this.initialise = function()
n@453: 	{
n@471: 		if (specification.preTest != undefined){this.globalPreTest = new this.surveyNode(this,this.root,specification.preTest);}
n@471: 		if (specification.postTest != undefined){this.globalPostTest = new this.surveyNode(this,this.root,specification.postTest);}
n@453: 	};
n@453: 	
n@453: 	this.createTestPageStore = function(specification)
n@453: 	{
n@453: 		var store = new this.pageNode(this,specification);
n@453: 		this.testPages.push(store);
n@453: 		return this.testPages[this.testPages.length-1];
n@453: 	};
n@453: 	
n@453: 	this.surveyNode = function(parent,root,specification)
n@453: 	{
n@453: 		this.specification = specification;
n@453: 		this.parent = parent;
n@453: 		this.XMLDOM = this.parent.document.createElement('survey');
n@453: 		this.XMLDOM.setAttribute('location',this.specification.location);
n@453: 		for (var optNode of this.specification.options)
n@453: 		{
n@453: 			if (optNode.type != 'statement')
n@453: 			{
n@453: 				var node = this.parent.document.createElement('surveyresult');
n@453: 				node.id = optNode.id;
n@453: 				node.setAttribute('type',optNode.type);
n@453: 				this.XMLDOM.appendChild(node);
n@453: 			}
n@453: 		}
n@453: 		root.appendChild(this.XMLDOM);
n@453: 		
n@453: 		this.postResult = function(node)
n@453: 		{
n@453: 			// From popup: node is the popupOption node containing both spec. and results
n@453: 			// ID is the position
n@453: 			if (node.specification.type == 'statement'){return;}
n@453: 			var surveyresult = this.parent.document.getElementById(node.specification.id);
n@453: 			switch(node.specification.type)
n@453: 			{
n@453: 			case "number":
n@453: 			case "question":
n@453: 				var child = this.parent.document.createElement('response');
n@453: 				child.textContent = node.response;
n@453: 				surveyresult.appendChild(child);
n@453: 				break;
n@453: 			case "radio":
n@453: 				var child = this.parent.document.createElement('response');
n@453: 				child.setAttribute('name',node.response.name);
n@453: 				child.textContent = node.response.text;
n@453: 				surveyresult.appendChild(child);
n@453: 				break;
n@453: 			case "checkbox":
n@453: 				for (var i=0; i<node.response.length; i++)
n@453: 				{
n@453: 					var checkNode = this.parent.document.createElement('response');
n@455: 					checkNode.setAttribute('name',node.response.name);
n@455: 					checkNode.setAttribute('checked',node.response.checked);
n@455: 					surveyresult.appendChild(checkNode);
n@453: 				}
n@453: 				break;
n@453: 			}
n@453: 		};
n@453: 	};
n@453: 	
n@453: 	this.pageNode = function(parent,specification)
n@453: 	{
n@453: 		// Create one store per test page
n@453: 		this.specification = specification;
n@453: 		this.parent = parent;
n@453: 		this.XMLDOM = this.parent.document.createElement('page');
n@453: 		this.XMLDOM.setAttribute('id',specification.id);
n@453: 		this.XMLDOM.setAttribute('presentedId',specification.presentedId);
n@471: 		if (specification.preTest != undefined){this.preTest = new this.surveyNode(this,this.root,this.specification.preTest);}
n@471: 		if (specification.postTest != undefined){this.postTest = new this.surveyNode(this,this.root,this.specification.postTest);}
n@453: 		
n@453: 		// Add any page metrics
n@453: 		var page_metric = this.parent.document.createElement('metric');
n@453: 		this.XMLDOM.appendChild(page_metric);
n@453: 		
n@453: 		// Add the audioelement
n@453: 		for (var element of this.specification.audioElements)
n@453: 		{
n@453: 			var aeNode = this.parent.document.createElement('audioelement');
n@453: 			aeNode.id = element.id;
n@453: 			aeNode.setAttribute('type',element.type);
n@453: 			aeNode.setAttribute('url', element.url);
n@453: 			aeNode.setAttribute('gain', element.gain);
n@453: 			if (element.type == 'anchor' || element.type == 'reference')
n@453: 			{
n@453: 				if (element.marker > 0)
n@453: 				{
n@453: 					aeNode.setAttribute('marker',element.marker);
n@453: 				}
n@453: 			}
n@453: 			var ae_metric = this.parent.document.createElement('metric');
n@453: 			aeNode.appendChild(ae_metric); 
n@453: 			this.XMLDOM.appendChild(aeNode);
n@453: 		}
n@453: 		
n@453: 		// Add any commentQuestions
n@453: 		for (var element of this.specification.commentQuestions)
n@453: 		{
n@453: 			var cqNode = this.parent.document.createElement('commentquestion');
n@453: 			cqNode.id = element.id;
n@453: 			cqNode.setAttribute('type',element.type);
n@453: 			var statement = this.parent.document.createElement('statement');
n@453: 			statement.textContent = cqNode.statement;
n@453: 			cqNode.appendChild(statement);
n@453: 			var response = this.parent.document.createElement('response');
n@453: 			cqNode.appendChild(response);
n@453: 			this.XMLDOM.appendChild(cqNode);
n@453: 		}
n@453: 		
n@453: 		this.parent.root.appendChild(this.XMLDOM);
n@453: 	};
n@453: 	this.finish = function()
n@453: 	{
n@453: 		if (this.state == 0)
n@453: 		{
n@453: 			var projectDocument = specification.projectXML;
n@453: 			projectDocument.setAttribute('file-name',url);
n@453: 			this.root.appendChild(projectDocument);
n@453: 			this.root.appendChild(returnDateNode());
n@453: 			this.root.appendChild(interfaceContext.returnNavigator());
n@453: 		}
n@453: 		this.state = 1;
n@453: 		return this.root;
n@453: 	};
n@453: }