djmoffat@1099: /**
djmoffat@1099:  * core.js
djmoffat@1099:  * 
djmoffat@1099:  * Main script to run, calls all other core functions and manages loading/store to backend.
djmoffat@1099:  * Also contains all global variables.
djmoffat@1099:  */
djmoffat@1099: 
djmoffat@1099: /* create the web audio API context and store in audioContext*/
djmoffat@1099: var audioContext; // Hold the browser web audio API
djmoffat@1099: var projectXML; // Hold the parsed setup XML
djmoffat@1099: var schemaXSD; // Hold the parsed schema XSD
djmoffat@1099: var specification;
djmoffat@1099: var interfaceContext;
djmoffat@1099: var storage;
djmoffat@1099: var popup; // Hold the interfacePopup object
djmoffat@1099: var testState;
djmoffat@1099: var currentTrackOrder = []; // Hold the current XML tracks in their (randomised) order
djmoffat@1099: var audioEngineContext; // The custome AudioEngine object
djmoffat@1099: var projectReturn; // Hold the URL for the return
djmoffat@1099: 
djmoffat@1099: 
djmoffat@1099: // Add a prototype to the bufferSourceNode to reference to the audioObject holding it
djmoffat@1099: AudioBufferSourceNode.prototype.owner = undefined;
djmoffat@1099: // Add a prototype to the bufferSourceNode to hold when the object was given a play command
djmoffat@1099: AudioBufferSourceNode.prototype.playbackStartTime = undefined;
djmoffat@1099: // Add a prototype to the bufferNode to hold the desired LINEAR gain
djmoffat@1099: AudioBuffer.prototype.playbackGain = undefined;
djmoffat@1099: // Add a prototype to the bufferNode to hold the computed LUFS loudness
djmoffat@1099: AudioBuffer.prototype.lufs = undefined;
djmoffat@1099: 
djmoffat@1099: // Firefox does not have an XMLDocument.prototype.getElementsByName
djmoffat@1099: // and there is no searchAll style command, this custom function will
djmoffat@1099: // search all children recusrively for the name. Used for XSD where all
djmoffat@1099: // element nodes must have a name and therefore can pull the schema node
djmoffat@1099: XMLDocument.prototype.getAllElementsByName = function(name)
djmoffat@1099: {
djmoffat@1099:     name = String(name);
djmoffat@1099:     var selected = this.documentElement.getAllElementsByName(name);
djmoffat@1099:     return selected;
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: Element.prototype.getAllElementsByName = function(name)
djmoffat@1099: {
djmoffat@1099:     name = String(name);
djmoffat@1099:     var selected = [];
djmoffat@1099:     var node = this.firstElementChild;
djmoffat@1099:     while(node != null)
djmoffat@1099:     {
djmoffat@1099:         if (node.getAttribute('name') == name)
djmoffat@1099:         {
djmoffat@1099:             selected.push(node);
djmoffat@1099:         }
djmoffat@1099:         if (node.childElementCount > 0)
djmoffat@1099:         {
djmoffat@1099:             selected = selected.concat(node.getAllElementsByName(name));
djmoffat@1099:         }
djmoffat@1099:         node = node.nextElementSibling;
djmoffat@1099:     }
djmoffat@1099:     return selected;
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: XMLDocument.prototype.getAllElementsByTagName = function(name)
djmoffat@1099: {
djmoffat@1099:     name = String(name);
djmoffat@1099:     var selected = this.documentElement.getAllElementsByTagName(name);
djmoffat@1099:     return selected;
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: Element.prototype.getAllElementsByTagName = function(name)
djmoffat@1099: {
djmoffat@1099:     name = String(name);
djmoffat@1099:     var selected = [];
djmoffat@1099:     var node = this.firstElementChild;
djmoffat@1099:     while(node != null)
djmoffat@1099:     {
djmoffat@1099:         if (node.nodeName == name)
djmoffat@1099:         {
djmoffat@1099:             selected.push(node);
djmoffat@1099:         }
djmoffat@1099:         if (node.childElementCount > 0)
djmoffat@1099:         {
djmoffat@1099:             selected = selected.concat(node.getAllElementsByTagName(name));
djmoffat@1099:         }
djmoffat@1099:         node = node.nextElementSibling;
djmoffat@1099:     }
djmoffat@1099:     return selected;
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: // Firefox does not have an XMLDocument.prototype.getElementsByName
djmoffat@1099: if (typeof XMLDocument.prototype.getElementsByName != "function") {
djmoffat@1099:     XMLDocument.prototype.getElementsByName = function(name)
djmoffat@1099:     {
djmoffat@1099:         name = String(name);
djmoffat@1099:         var node = this.documentElement.firstElementChild;
djmoffat@1099:         var selected = [];
djmoffat@1099:         while(node != null)
djmoffat@1099:         {
djmoffat@1099:             if (node.getAttribute('name') == name)
djmoffat@1099:             {
djmoffat@1099:                 selected.push(node);
djmoffat@1099:             }
djmoffat@1099:             node = node.nextElementSibling;
djmoffat@1099:         }
djmoffat@1099:         return selected;
djmoffat@1099:     }
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: window.onload = function() {
djmoffat@1099: 	// Function called once the browser has loaded all files.
djmoffat@1099: 	// This should perform any initial commands such as structure / loading documents
djmoffat@1099: 	
djmoffat@1099: 	// Create a web audio API context
djmoffat@1099: 	// Fixed for cross-browser support
djmoffat@1099: 	var AudioContext = window.AudioContext || window.webkitAudioContext;
djmoffat@1099: 	audioContext = new AudioContext;
djmoffat@1099: 	
djmoffat@1099: 	// Create test state
djmoffat@1099: 	testState = new stateMachine();
djmoffat@1099: 	
djmoffat@1099: 	// Create the popup interface object
djmoffat@1099: 	popup = new interfacePopup();
djmoffat@1099:     
djmoffat@1099:     // Create the specification object
djmoffat@1099: 	specification = new Specification();
djmoffat@1099: 	
djmoffat@1099: 	// Create the interface object
djmoffat@1099: 	interfaceContext = new Interface(specification);
djmoffat@1099: 	
djmoffat@1099: 	// Create the storage object
djmoffat@1099: 	storage = new Storage();
djmoffat@1099: 	// Define window callbacks for interface
djmoffat@1099: 	window.onresize = function(event){interfaceContext.resizeWindow(event);};
djmoffat@1099: };
djmoffat@1099: 
djmoffat@1099: function loadProjectSpec(url) {
djmoffat@1099: 	// Load the project document from the given URL, decode the XML and instruct audioEngine to get audio data
djmoffat@1099: 	// If url is null, request client to upload project XML document
djmoffat@1099: 	var xmlhttp = new XMLHttpRequest();
djmoffat@1099: 	xmlhttp.open("GET",'test-schema.xsd',true);
djmoffat@1099: 	xmlhttp.onload = function()
djmoffat@1099: 	{
djmoffat@1099: 		schemaXSD = xmlhttp.response;
djmoffat@1099: 		var parse = new DOMParser();
djmoffat@1099: 		specification.schema = parse.parseFromString(xmlhttp.response,'text/xml');
djmoffat@1099: 		var r = new XMLHttpRequest();
djmoffat@1099: 		r.open('GET',url,true);
djmoffat@1099: 		r.onload = function() {
djmoffat@1099: 			loadProjectSpecCallback(r.response);
djmoffat@1099: 		};
n@1102:         r.onerror = function() {
n@1102:             document.getElementsByTagName('body')[0].innerHTML = null;
n@1102:             var msg = document.createElement("h3");
n@1102:             msg.textContent = "FATAL ERROR";
n@1102:             var span = document.createElement("p");
n@1102:             span.textContent = "There was an error when loading your XML file. Please check your path in the URL. After the path to this page, there should be '?url=path/to/your/file.xml'. Check the spelling of your filename as well. If you are still having issues, check the log of the python server or your webserver distribution for 404 codes for your file.";
n@1102:             document.getElementsByTagName('body')[0].appendChild(msg);
n@1102:             document.getElementsByTagName('body')[0].appendChild(span);
n@1102:         }
djmoffat@1099: 		r.send();
djmoffat@1099: 	};
djmoffat@1099: 	xmlhttp.send();
djmoffat@1099: };
djmoffat@1099: 
djmoffat@1099: function loadProjectSpecCallback(response) {
djmoffat@1099: 	// Function called after asynchronous download of XML project specification
djmoffat@1099: 	//var decode = $.parseXML(response);
djmoffat@1099: 	//projectXML = $(decode);
djmoffat@1099: 	
djmoffat@1099: 	// First perform XML schema validation
djmoffat@1099: 	var Module = {
djmoffat@1099: 		xml: response,
djmoffat@1099: 		schema: schemaXSD,
djmoffat@1099: 		arguments:["--noout", "--schema", 'test-schema.xsd','document.xml']
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	var xmllint = validateXML(Module);
djmoffat@1099: 	console.log(xmllint);
djmoffat@1099: 	if(xmllint != 'document.xml validates\n')
djmoffat@1099: 	{
djmoffat@1099: 		document.getElementsByTagName('body')[0].innerHTML = null;
djmoffat@1099: 		var msg = document.createElement("h3");
djmoffat@1099: 		msg.textContent = "FATAL ERROR";
djmoffat@1099: 		var span = document.createElement("h4");
djmoffat@1099: 		span.textContent = "The XML validator returned the following errors when decoding your XML file";
djmoffat@1099: 		document.getElementsByTagName('body')[0].appendChild(msg);
djmoffat@1099: 		document.getElementsByTagName('body')[0].appendChild(span);
djmoffat@1099: 		xmllint = xmllint.split('\n');
djmoffat@1099: 		for (var i in xmllint)
djmoffat@1099: 		{
djmoffat@1099: 			document.getElementsByTagName('body')[0].appendChild(document.createElement('br'));
djmoffat@1099: 			var span = document.createElement("span");
djmoffat@1099: 			span.textContent = xmllint[i];
djmoffat@1099: 			document.getElementsByTagName('body')[0].appendChild(span);
djmoffat@1099: 		}
djmoffat@1099: 		return;
djmoffat@1099: 	}
djmoffat@1099: 	
djmoffat@1099: 	var parse = new DOMParser();
djmoffat@1099: 	projectXML = parse.parseFromString(response,'text/xml');
djmoffat@1099: 	var errorNode = projectXML.getElementsByTagName('parsererror');
djmoffat@1099: 	if (errorNode.length >= 1)
djmoffat@1099: 	{
djmoffat@1099: 		var msg = document.createElement("h3");
djmoffat@1099: 		msg.textContent = "FATAL ERROR";
djmoffat@1099: 		var span = document.createElement("span");
djmoffat@1099: 		span.textContent = "The XML parser returned the following errors when decoding your XML file";
djmoffat@1099: 		document.getElementsByTagName('body')[0].innerHTML = null;
djmoffat@1099: 		document.getElementsByTagName('body')[0].appendChild(msg);
djmoffat@1099: 		document.getElementsByTagName('body')[0].appendChild(span);
djmoffat@1099: 		document.getElementsByTagName('body')[0].appendChild(errorNode[0]);
djmoffat@1099: 		return;
djmoffat@1099: 	}
djmoffat@1099: 	
djmoffat@1099: 	// Build the specification
djmoffat@1099: 	specification.decode(projectXML);
djmoffat@1099: 	storage.initialise();
djmoffat@1099: 	/// CHECK FOR SAMPLE RATE COMPATIBILITY
djmoffat@1099: 	if (specification.sampleRate != undefined) {
djmoffat@1099: 		if (Number(specification.sampleRate) != audioContext.sampleRate) {
djmoffat@1099: 			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.';
djmoffat@1099: 			alert(errStr);
djmoffat@1099: 			return;
djmoffat@1099: 		}
djmoffat@1099: 	}
djmoffat@1099: 	
djmoffat@1099: 	// Detect the interface to use and load the relevant javascripts.
djmoffat@1099: 	var interfaceJS = document.createElement('script');
djmoffat@1099: 	interfaceJS.setAttribute("type","text/javascript");
djmoffat@1099: 	switch(specification.interface)
djmoffat@1099: 	{
djmoffat@1099: 		case "APE":
djmoffat@1099: 		interfaceJS.setAttribute("src","interfaces/ape.js");
djmoffat@1099: 		
djmoffat@1099: 		// APE comes with a css file
djmoffat@1099: 		var css = document.createElement('link');
djmoffat@1099: 		css.rel = 'stylesheet';
djmoffat@1099: 		css.type = 'text/css';
djmoffat@1099: 		css.href = 'interfaces/ape.css';
djmoffat@1099: 		
djmoffat@1099: 		document.getElementsByTagName("head")[0].appendChild(css);
djmoffat@1099: 		break;
djmoffat@1099: 		
djmoffat@1099: 		case "MUSHRA":
djmoffat@1099: 		interfaceJS.setAttribute("src","interfaces/mushra.js");
djmoffat@1099: 		
djmoffat@1099: 		// MUSHRA comes with a css file
djmoffat@1099: 		var css = document.createElement('link');
djmoffat@1099: 		css.rel = 'stylesheet';
djmoffat@1099: 		css.type = 'text/css';
djmoffat@1099: 		css.href = 'interfaces/mushra.css';
djmoffat@1099: 		
djmoffat@1099: 		document.getElementsByTagName("head")[0].appendChild(css);
djmoffat@1099: 		break;
djmoffat@1099: 		
djmoffat@1099: 		case "AB":
djmoffat@1099: 		interfaceJS.setAttribute("src","interfaces/AB.js");
djmoffat@1099: 		
djmoffat@1099: 		// AB comes with a css file
djmoffat@1099: 		var css = document.createElement('link');
djmoffat@1099: 		css.rel = 'stylesheet';
djmoffat@1099: 		css.type = 'text/css';
djmoffat@1099: 		css.href = 'interfaces/AB.css';
djmoffat@1099: 		
djmoffat@1099: 		document.getElementsByTagName("head")[0].appendChild(css);
djmoffat@1099: 		break;
djmoffat@1099: 		case "Bipolar":
djmoffat@1099: 		case "ACR":
djmoffat@1099: 		case "DCR":
djmoffat@1099: 		case "CCR":
djmoffat@1099: 		case "ABC":
djmoffat@1099: 		// Above enumerate to horizontal sliders
djmoffat@1099: 		interfaceJS.setAttribute("src","interfaces/horizontal-sliders.js");
djmoffat@1099: 		
djmoffat@1099: 		// horizontal-sliders comes with a css file
djmoffat@1099: 		var css = document.createElement('link');
djmoffat@1099: 		css.rel = 'stylesheet';
djmoffat@1099: 		css.type = 'text/css';
djmoffat@1099: 		css.href = 'interfaces/horizontal-sliders.css';
djmoffat@1099: 		
djmoffat@1099: 		document.getElementsByTagName("head")[0].appendChild(css);
djmoffat@1099: 		break;
djmoffat@1099: 		case "discrete":
djmoffat@1099: 		case "likert":
djmoffat@1099: 		// Above enumerate to horizontal discrete radios
djmoffat@1099: 		interfaceJS.setAttribute("src","interfaces/discrete.js");
djmoffat@1099: 		
djmoffat@1099: 		// horizontal-sliders comes with a css file
djmoffat@1099: 		var css = document.createElement('link');
djmoffat@1099: 		css.rel = 'stylesheet';
djmoffat@1099: 		css.type = 'text/css';
djmoffat@1099: 		css.href = 'interfaces/discrete.css';
djmoffat@1099: 		
djmoffat@1099: 		document.getElementsByTagName("head")[0].appendChild(css);
djmoffat@1099: 		break;
djmoffat@1099: 	}
djmoffat@1099: 	document.getElementsByTagName("head")[0].appendChild(interfaceJS);
djmoffat@1099: 	
djmoffat@1099: 	// Create the audio engine object
djmoffat@1099: 	audioEngineContext = new AudioEngine(specification);
djmoffat@1099: 	
djmoffat@1099: 	$(specification.pages).each(function(index,elem){
djmoffat@1099: 		$(elem.audioElements).each(function(i,audioElem){
djmoffat@1099: 			var URL = elem.hostURL + audioElem.url;
djmoffat@1099: 			var buffer = null;
djmoffat@1099: 			for (var i=0; i<audioEngineContext.buffers.length; i++)
djmoffat@1099: 			{
djmoffat@1099: 				if (URL == audioEngineContext.buffers[i].url)
djmoffat@1099: 				{
djmoffat@1099: 					buffer = audioEngineContext.buffers[i];
djmoffat@1099: 					break;
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 			if (buffer == null)
djmoffat@1099: 			{
djmoffat@1099: 				buffer = new audioEngineContext.bufferObj();
djmoffat@1099: 				buffer.getMedia(URL);
djmoffat@1099: 				audioEngineContext.buffers.push(buffer);
djmoffat@1099: 			}
djmoffat@1099: 		});
djmoffat@1099: 	});
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function createProjectSave(destURL) {
djmoffat@1099: 	// Save the data from interface into XML and send to destURL
djmoffat@1099: 	// If destURL is null then download XML in client
djmoffat@1099: 	// Now time to render file locally
djmoffat@1099: 	var xmlDoc = interfaceXMLSave();
djmoffat@1099: 	var parent = document.createElement("div");
djmoffat@1099: 	parent.appendChild(xmlDoc);
djmoffat@1099: 	var file = [parent.innerHTML];
djmoffat@1099: 	if (destURL == "null" || destURL == undefined) {
djmoffat@1099: 		var bb = new Blob(file,{type : 'application/xml'});
djmoffat@1099: 		var dnlk = window.URL.createObjectURL(bb);
djmoffat@1099: 		var a = document.createElement("a");
djmoffat@1099: 		a.hidden = '';
djmoffat@1099: 		a.href = dnlk;
djmoffat@1099: 		a.download = "save.xml";
djmoffat@1099: 		a.textContent = "Save File";
djmoffat@1099: 		
djmoffat@1099: 		popup.showPopup();
djmoffat@1099: 		popup.popupContent.innerHTML = "</span>Please save the file below to give to your test supervisor</span><br>";
djmoffat@1099: 		popup.popupContent.appendChild(a);
djmoffat@1099: 	} else {
djmoffat@1099: 		var xmlhttp = new XMLHttpRequest;
djmoffat@1099: 		xmlhttp.open("POST",destURL,true);
djmoffat@1099: 		xmlhttp.setRequestHeader('Content-Type', 'text/xml');
djmoffat@1099: 		xmlhttp.onerror = function(){
djmoffat@1099: 			console.log('Error saving file to server! Presenting download locally');
djmoffat@1099: 			createProjectSave(null);
djmoffat@1099: 		};
djmoffat@1099: 		xmlhttp.onreadystatechange  = function() {
djmoffat@1099: 			console.log(xmlhttp.status);
djmoffat@1099: 			if (xmlhttp.status != 200 && xmlhttp.readyState == 4) {
djmoffat@1099: 				createProjectSave(null);
djmoffat@1099: 			} else {
n@1102: 				var parser = new DOMParser();
n@1102: 				var xmlDoc = parser.parseFromString(xmlhttp.responseText, "application/xml");
n@1102: 				if (xmlDoc == null)
djmoffat@1099: 				{
djmoffat@1099: 					createProjectSave('null');
djmoffat@1099: 				}
n@1102: 				var response = xmlDoc.childNodes[0];
djmoffat@1099: 				if (response.getAttribute('state') == "OK")
djmoffat@1099: 				{
djmoffat@1099: 					var file = response.getElementsByTagName('file')[0];
djmoffat@1099: 					console.log('Save OK: Filename '+file.textContent+','+file.getAttribute('bytes')+'B');
djmoffat@1099: 					popup.showPopup();
djmoffat@1099: 					popup.popupContent.innerHTML = null;
djmoffat@1099: 					popup.popupContent.textContent = "Thank you!";
n@1102: 					window.onbeforeunload=null;
djmoffat@1099: 				} else {
djmoffat@1099: 					var message = response.getElementsByTagName('message')[0];
djmoffat@1099: 					errorSessionDump(message.textContent);
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 		};
djmoffat@1099: 		xmlhttp.send(file);
djmoffat@1099: 		popup.showPopup();
djmoffat@1099: 		popup.popupContent.innerHTML = null;
djmoffat@1099: 		popup.popupContent.textContent = "Submitting. Please Wait";
n@1102:         popup.hideNextButton();
n@1102:         popup.hidePreviousButton();
djmoffat@1099: 	}
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function errorSessionDump(msg){
djmoffat@1099: 	// Create the partial interface XML save
djmoffat@1099: 	// Include error node with message on why the dump occured
djmoffat@1099: 	popup.showPopup();
djmoffat@1099: 	popup.popupContent.innerHTML = null;
djmoffat@1099: 	var err = document.createElement('error');
djmoffat@1099: 	var parent = document.createElement("div");
djmoffat@1099: 	if (typeof msg === "object")
djmoffat@1099: 	{
djmoffat@1099: 		err.appendChild(msg);
djmoffat@1099: 		popup.popupContent.appendChild(msg);
djmoffat@1099: 		
djmoffat@1099: 	} else {
djmoffat@1099: 		err.textContent = msg;
djmoffat@1099: 		popup.popupContent.innerHTML = "ERROR : "+msg;
djmoffat@1099: 	}
djmoffat@1099: 	var xmlDoc = interfaceXMLSave();
djmoffat@1099: 	xmlDoc.appendChild(err);
djmoffat@1099: 	parent.appendChild(xmlDoc);
djmoffat@1099: 	var file = [parent.innerHTML];
djmoffat@1099: 	var bb = new Blob(file,{type : 'application/xml'});
djmoffat@1099: 	var dnlk = window.URL.createObjectURL(bb);
djmoffat@1099: 	var a = document.createElement("a");
djmoffat@1099: 	a.hidden = '';
djmoffat@1099: 	a.href = dnlk;
djmoffat@1099: 	a.download = "save.xml";
djmoffat@1099: 	a.textContent = "Save File";
djmoffat@1099: 	
djmoffat@1099: 	
djmoffat@1099: 	
djmoffat@1099: 	popup.popupContent.appendChild(a);
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: // Only other global function which must be defined in the interface class. Determines how to create the XML document.
djmoffat@1099: function interfaceXMLSave(){
djmoffat@1099: 	// Create the XML string to be exported with results
djmoffat@1099: 	return storage.finish();
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function linearToDecibel(gain)
djmoffat@1099: {
djmoffat@1099: 	return 20.0*Math.log10(gain);
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function decibelToLinear(gain)
djmoffat@1099: {
djmoffat@1099: 	return Math.pow(10,gain/20.0);
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function interfacePopup() {
djmoffat@1099: 	// Creates an object to manage the popup
djmoffat@1099: 	this.popup = null;
djmoffat@1099: 	this.popupContent = null;
djmoffat@1099: 	this.popupTitle = null;
djmoffat@1099: 	this.popupResponse = null;
djmoffat@1099: 	this.buttonProceed = null;
djmoffat@1099: 	this.buttonPrevious = null;
djmoffat@1099: 	this.popupOptions = null;
djmoffat@1099: 	this.currentIndex = null;
djmoffat@1099: 	this.node = null;
djmoffat@1099: 	this.store = null;
djmoffat@1099: 	$(window).keypress(function(e){
djmoffat@1099: 			if (e.keyCode == 13 && popup.popup.style.visibility == 'visible')
djmoffat@1099: 			{
djmoffat@1099: 				console.log(e);
djmoffat@1099: 				popup.buttonProceed.onclick();
djmoffat@1099: 				e.preventDefault();
djmoffat@1099: 			}
djmoffat@1099: 		});
djmoffat@1099: 	
djmoffat@1099: 	this.createPopup = function(){
djmoffat@1099: 		// Create popup window interface
djmoffat@1099: 		var insertPoint = document.getElementById("topLevelBody");
djmoffat@1099: 		
djmoffat@1099: 		this.popup = document.getElementById('popupHolder');
djmoffat@1099: 		this.popup.style.left = (window.innerWidth/2)-250 + 'px';
djmoffat@1099: 		this.popup.style.top = (window.innerHeight/2)-125 + 'px';
djmoffat@1099: 		
djmoffat@1099: 		this.popupContent = document.getElementById('popupContent');
djmoffat@1099: 		
djmoffat@1099: 		this.popupTitle = document.getElementById('popupTitle');
djmoffat@1099: 		
djmoffat@1099: 		this.popupResponse = document.getElementById('popupResponse');
djmoffat@1099: 		
djmoffat@1099: 		this.buttonProceed = document.getElementById('popup-proceed');
djmoffat@1099: 		this.buttonProceed.onclick = function(){popup.proceedClicked();};
djmoffat@1099: 		
djmoffat@1099: 		this.buttonPrevious = document.getElementById('popup-previous');
djmoffat@1099: 		this.buttonPrevious.onclick = function(){popup.previousClick();};
djmoffat@1099: 		
djmoffat@1099:         this.hidePopup();
djmoffat@1099:         
djmoffat@1099: 		this.popup.style.zIndex = -1;
djmoffat@1099: 		this.popup.style.visibility = 'hidden';
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.showPopup = function(){
djmoffat@1099: 		if (this.popup == null) {
djmoffat@1099: 			this.createPopup();
djmoffat@1099: 		}
djmoffat@1099: 		this.popup.style.zIndex = 3;
djmoffat@1099: 		this.popup.style.visibility = 'visible';
djmoffat@1099: 		var blank = document.getElementsByClassName('testHalt')[0];
djmoffat@1099: 		blank.style.zIndex = 2;
djmoffat@1099: 		blank.style.visibility = 'visible';
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.hidePopup = function(){
djmoffat@1099: 		this.popup.style.zIndex = -1;
djmoffat@1099: 		this.popup.style.visibility = 'hidden';
djmoffat@1099: 		var blank = document.getElementsByClassName('testHalt')[0];
djmoffat@1099: 		blank.style.zIndex = -2;
djmoffat@1099: 		blank.style.visibility = 'hidden';
djmoffat@1099: 		this.buttonPrevious.style.visibility = 'inherit';
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.postNode = function() {
djmoffat@1099: 		// This will take the node from the popupOptions and display it
djmoffat@1099: 		var node = this.popupOptions[this.currentIndex];
djmoffat@1099: 		this.popupResponse.innerHTML = null;
djmoffat@1099: 		this.popupTitle.textContent = node.specification.statement;
djmoffat@1099: 		if (node.specification.type == 'question') {
djmoffat@1099: 			var textArea = document.createElement('textarea');
djmoffat@1099: 			switch (node.specification.boxsize) {
djmoffat@1099: 			case 'small':
djmoffat@1099: 				textArea.cols = "20";
djmoffat@1099: 				textArea.rows = "1";
djmoffat@1099: 				break;
djmoffat@1099: 			case 'normal':
djmoffat@1099: 				textArea.cols = "30";
djmoffat@1099: 				textArea.rows = "2";
djmoffat@1099: 				break;
djmoffat@1099: 			case 'large':
djmoffat@1099: 				textArea.cols = "40";
djmoffat@1099: 				textArea.rows = "5";
djmoffat@1099: 				break;
djmoffat@1099: 			case 'huge':
djmoffat@1099: 				textArea.cols = "50";
djmoffat@1099: 				textArea.rows = "10";
djmoffat@1099: 				break;
djmoffat@1099: 			}
djmoffat@1099:             if (node.response == undefined) {
djmoffat@1099:                 node.response = "";
djmoffat@1099:             } else {
djmoffat@1099:                 textArea.value = node.response;
djmoffat@1099:             }
djmoffat@1099: 			this.popupResponse.appendChild(textArea);
djmoffat@1099: 			textArea.focus();
djmoffat@1099:             this.popupResponse.style.textAlign="center";
djmoffat@1099:             this.popupResponse.style.left="0%";
djmoffat@1099: 		} else if (node.specification.type == 'checkbox') {
djmoffat@1099:             if (node.response == undefined) {
djmoffat@1099:                 node.response = Array(node.specification.options.length);
djmoffat@1099:             }
djmoffat@1099:             var index = 0;
djmoffat@1099:             var max_w = 0;
djmoffat@1099: 			for (var option of node.specification.options) {
djmoffat@1099: 				var input = document.createElement('input');
djmoffat@1099: 				input.id = option.name;
djmoffat@1099: 				input.type = 'checkbox';
djmoffat@1099: 				var span = document.createElement('span');
djmoffat@1099: 				span.textContent = option.text;
djmoffat@1099: 				var hold = document.createElement('div');
djmoffat@1099: 				hold.setAttribute('name','option');
djmoffat@1099: 				hold.style.padding = '4px';
djmoffat@1099: 				hold.appendChild(input);
djmoffat@1099: 				hold.appendChild(span);
djmoffat@1099: 				this.popupResponse.appendChild(hold);
djmoffat@1099:                 if (node.response[index] != undefined){
djmoffat@1099:                     if (node.response[index].checked == true) {
djmoffat@1099:                         input.checked = "true";
djmoffat@1099:                     }
djmoffat@1099:                 }
djmoffat@1099:                 var w = $(span).width();
djmoffat@1099:                 if (w > max_w)
djmoffat@1099:                     max_w = w;
djmoffat@1099:                 index++;
djmoffat@1099: 			}
djmoffat@1099:             max_w += 12;
djmoffat@1099:             this.popupResponse.style.textAlign="";
djmoffat@1099:             var leftP = ((max_w/500)/2)*100;
djmoffat@1099:             this.popupResponse.style.left=leftP+"%";
djmoffat@1099: 		} else if (node.specification.type == 'radio') {
djmoffat@1099:             if (node.response == undefined) {
djmoffat@1099:                 node.response = {name: "", text: ""};
djmoffat@1099:             }
djmoffat@1099:             var index = 0;
djmoffat@1099:             var max_w = 0;
djmoffat@1099: 			for (var option of node.specification.options) {
djmoffat@1099: 				var input = document.createElement('input');
djmoffat@1099: 				input.id = option.name;
djmoffat@1099: 				input.type = 'radio';
djmoffat@1099: 				input.name = node.specification.id;
djmoffat@1099: 				var span = document.createElement('span');
djmoffat@1099: 				span.textContent = option.text;
djmoffat@1099: 				var hold = document.createElement('div');
djmoffat@1099: 				hold.setAttribute('name','option');
djmoffat@1099: 				hold.style.padding = '4px';
djmoffat@1099: 				hold.appendChild(input);
djmoffat@1099: 				hold.appendChild(span);
djmoffat@1099: 				this.popupResponse.appendChild(hold);
djmoffat@1099:                 if (input.id == node.response.name) {
djmoffat@1099:                     input.checked = "true";
djmoffat@1099:                 }
djmoffat@1099:                 var w = $(span).width();
djmoffat@1099:                 if (w > max_w)
djmoffat@1099:                     max_w = w;
djmoffat@1099: 			}
djmoffat@1099:             max_w += 12;
djmoffat@1099:             this.popupResponse.style.textAlign="";
djmoffat@1099:             var leftP = ((max_w/500)/2)*100;
djmoffat@1099:             this.popupResponse.style.left=leftP+"%";
djmoffat@1099: 		} else if (node.specification.type == 'number') {
djmoffat@1099: 			var input = document.createElement('input');
djmoffat@1099: 			input.type = 'textarea';
djmoffat@1099: 			if (node.min != null) {input.min = node.specification.min;}
djmoffat@1099: 			if (node.max != null) {input.max = node.specification.max;}
djmoffat@1099: 			if (node.step != null) {input.step = node.specification.step;}
djmoffat@1099:             if (node.response != undefined) {
djmoffat@1099:                 input.value = node.response;
djmoffat@1099:             }
djmoffat@1099: 			this.popupResponse.appendChild(input);
djmoffat@1099:             this.popupResponse.style.textAlign="center";
djmoffat@1099:             this.popupResponse.style.left="0%";
djmoffat@1099: 		}
djmoffat@1099: 		if(this.currentIndex+1 == this.popupOptions.length) {
djmoffat@1099: 			if (this.node.location == "pre") {
djmoffat@1099: 				this.buttonProceed.textContent = 'Start';
djmoffat@1099: 			} else {
djmoffat@1099: 				this.buttonProceed.textContent = 'Submit';
djmoffat@1099: 			}
djmoffat@1099: 		} else {
djmoffat@1099: 			this.buttonProceed.textContent = 'Next';
djmoffat@1099: 		}
djmoffat@1099: 		if(this.currentIndex > 0)
djmoffat@1099: 			this.buttonPrevious.style.visibility = 'visible';
djmoffat@1099: 		else
djmoffat@1099: 			this.buttonPrevious.style.visibility = 'hidden';
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.initState = function(node,store) {
djmoffat@1099: 		//Call this with your preTest and postTest nodes when needed to
djmoffat@1099: 		// initialise the popup procedure.
djmoffat@1099: 		if (node.options.length > 0) {
djmoffat@1099: 			this.popupOptions = [];
djmoffat@1099: 			this.node = node;
djmoffat@1099: 			this.store = store;
djmoffat@1099: 			for (var opt of node.options)
djmoffat@1099: 			{
djmoffat@1099: 				this.popupOptions.push({
djmoffat@1099: 					specification: opt,
djmoffat@1099: 					response: null
djmoffat@1099: 				});
djmoffat@1099: 			}			
djmoffat@1099: 			this.currentIndex = 0;
djmoffat@1099: 			this.showPopup();
djmoffat@1099: 			this.postNode();
djmoffat@1099: 		} else {
djmoffat@1099: 			advanceState();
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.proceedClicked = function() {
djmoffat@1099: 		// Each time the popup button is clicked!
djmoffat@1099: 		var node = this.popupOptions[this.currentIndex];
djmoffat@1099: 		if (node.specification.type == 'question') {
djmoffat@1099: 			// Must extract the question data
djmoffat@1099: 			var textArea = $(popup.popupContent).find('textarea')[0];
djmoffat@1099: 			if (node.specification.mandatory == true && textArea.value.length == 0) {
djmoffat@1099: 				alert('This question is mandatory');
djmoffat@1099: 				return;
djmoffat@1099: 			} else {
djmoffat@1099: 				// Save the text content
djmoffat@1099: 				console.log("Question: "+ node.specification.statement);
djmoffat@1099: 				console.log("Question Response: "+ textArea.value);
djmoffat@1099: 				node.response = textArea.value;
djmoffat@1099: 			}
djmoffat@1099: 		} else if (node.specification.type == 'checkbox') {
djmoffat@1099: 			// Must extract checkbox data
djmoffat@1099: 			console.log("Checkbox: "+ node.specification.statement);
djmoffat@1099: 			var inputs = this.popupResponse.getElementsByTagName('input');
djmoffat@1099: 			node.response = [];
djmoffat@1099: 			for (var i=0; i<node.specification.options.length; i++) {
djmoffat@1099: 				node.response.push({
djmoffat@1099: 					name: node.specification.options[i].name,
djmoffat@1099: 					text: node.specification.options[i].text,
djmoffat@1099: 					checked: inputs[i].checked
djmoffat@1099: 				});
djmoffat@1099: 				console.log(node.specification.options[i].name+": "+ inputs[i].checked);
djmoffat@1099: 			}
djmoffat@1099: 		} else if (node.specification.type == "radio") {
djmoffat@1099: 			var optHold = this.popupResponse;
djmoffat@1099: 			console.log("Radio: "+ node.specification.statement);
djmoffat@1099: 			node.response = null;
djmoffat@1099: 			var i=0;
djmoffat@1099: 			var inputs = optHold.getElementsByTagName('input');
djmoffat@1099: 			while(node.response == null) {
djmoffat@1099: 				if (i == inputs.length)
djmoffat@1099: 				{
djmoffat@1099: 					if (node.specification.mandatory == true)
djmoffat@1099: 					{
djmoffat@1099: 						alert("This radio is mandatory");
djmoffat@1099: 					} else {
djmoffat@1099: 						node.response = -1;
djmoffat@1099: 					}
djmoffat@1099: 					return;
djmoffat@1099: 				}
djmoffat@1099: 				if (inputs[i].checked == true) {
djmoffat@1099: 					node.response = node.specification.options[i];
djmoffat@1099: 					console.log("Selected: "+ node.specification.options[i].name);
djmoffat@1099: 				}
djmoffat@1099: 				i++;
djmoffat@1099: 			}
djmoffat@1099: 		} else if (node.specification.type == "number") {
djmoffat@1099: 			var input = this.popupContent.getElementsByTagName('input')[0];
djmoffat@1099: 			if (node.mandatory == true && input.value.length == 0) {
djmoffat@1099: 				alert('This question is mandatory. Please enter a number');
djmoffat@1099: 				return;
djmoffat@1099: 			}
djmoffat@1099: 			var enteredNumber = Number(input.value);
djmoffat@1099: 			if (isNaN(enteredNumber)) {
djmoffat@1099: 				alert('Please enter a valid number');
djmoffat@1099: 				return;
djmoffat@1099: 			}
djmoffat@1099: 			if (enteredNumber < node.min && node.min != null) {
djmoffat@1099: 				alert('Number is below the minimum value of '+node.min);
djmoffat@1099: 				return;
djmoffat@1099: 			}
djmoffat@1099: 			if (enteredNumber > node.max && node.max != null) {
djmoffat@1099: 				alert('Number is above the maximum value of '+node.max);
djmoffat@1099: 				return;
djmoffat@1099: 			}
djmoffat@1099: 			node.response = input.value;
djmoffat@1099: 		}
djmoffat@1099: 		this.currentIndex++;
djmoffat@1099: 		if (this.currentIndex < this.popupOptions.length) {
djmoffat@1099: 			this.postNode();
djmoffat@1099: 		} else {
djmoffat@1099: 			// Reached the end of the popupOptions
djmoffat@1099: 			this.hidePopup();
djmoffat@1099: 			for (var node of this.popupOptions)
djmoffat@1099: 			{
djmoffat@1099: 				this.store.postResult(node);
djmoffat@1099: 			}
djmoffat@1099: 			advanceState();
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.previousClick = function() {
djmoffat@1099: 		// Triggered when the 'Back' button is clicked in the survey
djmoffat@1099: 		if (this.currentIndex > 0) {
djmoffat@1099: 			this.currentIndex--;
djmoffat@1099: 			this.postNode();
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.resize = function(event)
djmoffat@1099: 	{
djmoffat@1099: 		// Called on window resize;
djmoffat@1099: 		if (this.popup != null) {
djmoffat@1099: 			this.popup.style.left = (window.innerWidth/2)-250 + 'px';
djmoffat@1099: 			this.popup.style.top = (window.innerHeight/2)-125 + 'px';
djmoffat@1099: 			var blank = document.getElementsByClassName('testHalt')[0];
djmoffat@1099: 			blank.style.width = window.innerWidth;
djmoffat@1099: 			blank.style.height = window.innerHeight;
djmoffat@1099: 		}
djmoffat@1099: 	};
n@1102:     this.hideNextButton = function() {
n@1102:         this.buttonProceed.style.visibility = "hidden";
n@1102:     }
n@1102:     this.hidePreviousButton = function() {
n@1102:         this.buttonPrevious.style.visibility = "hidden";
n@1102:     }
n@1102:     this.showNextButton = function() {
n@1102:         this.buttonProceed.style.visibility = "visible";
n@1102:     }
n@1102:     this.showPreviousButton = function() {
n@1102:         this.buttonPrevious.style.visibility = "visible";
n@1102:     }
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function advanceState()
djmoffat@1099: {
djmoffat@1099: 	// Just for complete clarity
djmoffat@1099: 	testState.advanceState();
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function stateMachine()
djmoffat@1099: {
djmoffat@1099: 	// Object prototype for tracking and managing the test state
djmoffat@1099: 	this.stateMap = [];
djmoffat@1099: 	this.preTestSurvey = null;
djmoffat@1099: 	this.postTestSurvey = null;
djmoffat@1099: 	this.stateIndex = null;
djmoffat@1099: 	this.currentStateMap = null;
djmoffat@1099: 	this.currentStatePosition = null;
djmoffat@1099:     this.currentStore = null;
djmoffat@1099: 	this.initialise = function(){
djmoffat@1099: 		
djmoffat@1099: 		// Get the data from Specification
djmoffat@1099: 		var pageHolder = [];
djmoffat@1099: 		for (var page of specification.pages)
djmoffat@1099: 		{
djmoffat@1099:             var repeat = page.repeatCount;
djmoffat@1099:             while(repeat >= 0)
djmoffat@1099:             {
djmoffat@1099:                 pageHolder.push(page);
djmoffat@1099:                 repeat--;
djmoffat@1099:             }
djmoffat@1099: 		}
djmoffat@1099: 		if (specification.randomiseOrder)
djmoffat@1099: 		{
djmoffat@1099: 			pageHolder = randomiseOrder(pageHolder);
djmoffat@1099: 		}
djmoffat@1099: 		for (var i=0; i<pageHolder.length; i++)
djmoffat@1099: 		{
djmoffat@1099: 			pageHolder[i].presentedId = i;
djmoffat@1099: 		}
djmoffat@1099: 		for (var i=0; i<specification.pages.length; i++)
djmoffat@1099: 		{
n@1102: 			if (specification.testPages <= i && specification.testPages != 0) {break;}
djmoffat@1099: 			this.stateMap.push(pageHolder[i]);
djmoffat@1099: 		}
n@1102:         
djmoffat@1099: 		if (specification.preTest != null) {this.preTestSurvey = specification.preTest;}
djmoffat@1099: 		if (specification.postTest != null) {this.postTestSurvey = specification.postTest;}
djmoffat@1099: 		
djmoffat@1099: 		if (this.stateMap.length > 0) {
djmoffat@1099: 			if(this.stateIndex != null) {
djmoffat@1099: 				console.log('NOTE - State already initialise');
djmoffat@1099: 			}
djmoffat@1099: 			this.stateIndex = -1;
djmoffat@1099: 		} else {
djmoffat@1099: 			console.log('FATAL - StateMap not correctly constructed. EMPTY_STATE_MAP');
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	this.advanceState = function(){
djmoffat@1099: 		if (this.stateIndex == null) {
djmoffat@1099: 			this.initialise();
djmoffat@1099: 		}
djmoffat@1099: 		if (this.stateIndex == -1) {
djmoffat@1099: 			this.stateIndex++;
djmoffat@1099: 			console.log('Starting test...');
djmoffat@1099: 			if (this.preTestSurvey != null)
djmoffat@1099: 			{
djmoffat@1099: 				popup.initState(this.preTestSurvey,storage.globalPreTest);
djmoffat@1099: 			} else {
djmoffat@1099: 				this.advanceState();
djmoffat@1099: 			}
djmoffat@1099: 		} else if (this.stateIndex == this.stateMap.length)
djmoffat@1099: 		{
djmoffat@1099: 			// All test pages complete, post test
djmoffat@1099: 			console.log('Ending test ...');
djmoffat@1099: 			this.stateIndex++;
djmoffat@1099: 			if (this.postTestSurvey == null) {
djmoffat@1099: 				this.advanceState();
djmoffat@1099: 			} else {
djmoffat@1099: 				popup.initState(this.postTestSurvey,storage.globalPostTest);
djmoffat@1099: 			}
djmoffat@1099: 		} else if (this.stateIndex > this.stateMap.length)
djmoffat@1099: 		{
djmoffat@1099: 			createProjectSave(specification.projectReturn);
djmoffat@1099: 		}
djmoffat@1099: 		else
djmoffat@1099: 		{
djmoffat@1099: 			if (this.currentStateMap == null)
djmoffat@1099: 			{
djmoffat@1099: 				this.currentStateMap = this.stateMap[this.stateIndex];
djmoffat@1099: 				if (this.currentStateMap.randomiseOrder)
djmoffat@1099: 				{
djmoffat@1099: 					this.currentStateMap.audioElements = randomiseOrder(this.currentStateMap.audioElements);
djmoffat@1099: 				}
djmoffat@1099:                 this.currentStore = storage.createTestPageStore(this.currentStateMap);
djmoffat@1099: 				if (this.currentStateMap.preTest != null)
djmoffat@1099: 				{
djmoffat@1099: 					this.currentStatePosition = 'pre';
djmoffat@1099: 					popup.initState(this.currentStateMap.preTest,storage.testPages[this.stateIndex].preTest);
djmoffat@1099: 				} else {
djmoffat@1099: 					this.currentStatePosition = 'test';
djmoffat@1099: 				}
djmoffat@1099: 				interfaceContext.newPage(this.currentStateMap,storage.testPages[this.stateIndex]);
djmoffat@1099: 				return;
djmoffat@1099: 			}
djmoffat@1099: 			switch(this.currentStatePosition)
djmoffat@1099: 			{
djmoffat@1099: 			case 'pre':
djmoffat@1099: 				this.currentStatePosition = 'test';
djmoffat@1099: 				break;
djmoffat@1099: 			case 'test':
djmoffat@1099: 				this.currentStatePosition = 'post';
djmoffat@1099: 				// Save the data
djmoffat@1099: 				this.testPageCompleted();
djmoffat@1099: 				if (this.currentStateMap.postTest == null)
djmoffat@1099: 				{
djmoffat@1099: 					this.advanceState();
djmoffat@1099: 					return;
djmoffat@1099: 				} else {
djmoffat@1099: 					popup.initState(this.currentStateMap.postTest,storage.testPages[this.stateIndex].postTest);
djmoffat@1099: 				}
djmoffat@1099: 				break;
djmoffat@1099: 			case 'post':
djmoffat@1099: 				this.stateIndex++;
djmoffat@1099: 				this.currentStateMap = null;
djmoffat@1099: 				this.advanceState();
djmoffat@1099: 				break;
djmoffat@1099: 			};
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.testPageCompleted = function() {
djmoffat@1099: 		// Function called each time a test page has been completed
djmoffat@1099: 		var storePoint = storage.testPages[this.stateIndex];
djmoffat@1099: 		// First get the test metric
djmoffat@1099: 		
djmoffat@1099: 		var metric = storePoint.XMLDOM.getElementsByTagName('metric')[0];
djmoffat@1099: 		if (audioEngineContext.metric.enableTestTimer)
djmoffat@1099: 		{
djmoffat@1099: 			var testTime = storePoint.parent.document.createElement('metricresult');
djmoffat@1099: 			testTime.id = 'testTime';
djmoffat@1099: 			testTime.textContent = audioEngineContext.timer.testDuration;
djmoffat@1099: 			metric.appendChild(testTime);
djmoffat@1099: 		}
djmoffat@1099: 		
djmoffat@1099: 		var audioObjects = audioEngineContext.audioObjects;
djmoffat@1099: 		for (var ao of audioEngineContext.audioObjects) 
djmoffat@1099: 		{
djmoffat@1099: 			ao.exportXMLDOM();
djmoffat@1099: 		}
djmoffat@1099: 		for (var element of interfaceContext.commentQuestions)
djmoffat@1099: 		{
djmoffat@1099: 			element.exportXMLDOM(storePoint);
djmoffat@1099: 		}
djmoffat@1099: 		pageXMLSave(storePoint.XMLDOM, this.currentStateMap);
djmoffat@1099: 	};
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function AudioEngine(specification) {
djmoffat@1099: 	
djmoffat@1099: 	// Create two output paths, the main outputGain and fooGain.
djmoffat@1099: 	// Output gain is default to 1 and any items for playback route here
djmoffat@1099: 	// Foo gain is used for analysis to ensure paths get processed, but are not heard
djmoffat@1099: 	// because web audio will optimise and any route which does not go to the destination gets ignored.
djmoffat@1099: 	this.outputGain = audioContext.createGain();
djmoffat@1099: 	this.fooGain = audioContext.createGain();
djmoffat@1099: 	this.fooGain.gain = 0;
djmoffat@1099: 	
djmoffat@1099: 	// Use this to detect playback state: 0 - stopped, 1 - playing
djmoffat@1099: 	this.status = 0;
djmoffat@1099: 	
djmoffat@1099: 	// Connect both gains to output
djmoffat@1099: 	this.outputGain.connect(audioContext.destination);
djmoffat@1099: 	this.fooGain.connect(audioContext.destination);
djmoffat@1099: 	
djmoffat@1099: 	// Create the timer Object
djmoffat@1099: 	this.timer = new timer();
djmoffat@1099: 	// Create session metrics
djmoffat@1099: 	this.metric = new sessionMetrics(this,specification);
djmoffat@1099: 	
djmoffat@1099: 	this.loopPlayback = false;
djmoffat@1099: 	
djmoffat@1099: 	this.pageStore = null;
djmoffat@1099: 	
djmoffat@1099: 	// Create store for new audioObjects
djmoffat@1099: 	this.audioObjects = [];
djmoffat@1099: 	
djmoffat@1099: 	this.buffers = [];
djmoffat@1099: 	this.bufferObj = function()
djmoffat@1099: 	{
djmoffat@1099: 		this.url = null;
djmoffat@1099: 		this.buffer = null;
djmoffat@1099: 		this.xmlRequest = new XMLHttpRequest();
djmoffat@1099: 		this.xmlRequest.parent = this;
djmoffat@1099: 		this.users = [];
djmoffat@1099:         this.progress = 0;
djmoffat@1099:         this.status = 0;
djmoffat@1099: 		this.ready = function()
djmoffat@1099: 		{
djmoffat@1099:             if (this.status >= 2)
djmoffat@1099:             {
djmoffat@1099:                 this.status = 3;
djmoffat@1099:             }
djmoffat@1099: 			for (var i=0; i<this.users.length; i++)
djmoffat@1099: 			{
djmoffat@1099: 				this.users[i].state = 1;
djmoffat@1099: 				if (this.users[i].interfaceDOM != null)
djmoffat@1099: 				{
djmoffat@1099: 					this.users[i].bufferLoaded(this);
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 		};
djmoffat@1099: 		this.getMedia = function(url) {
djmoffat@1099: 			this.url = url;
djmoffat@1099: 			this.xmlRequest.open('GET',this.url,true);
djmoffat@1099: 			this.xmlRequest.responseType = 'arraybuffer';
djmoffat@1099: 			
djmoffat@1099: 			var bufferObj = this;
djmoffat@1099: 			
djmoffat@1099: 			// Create callback to decode the data asynchronously
djmoffat@1099: 			this.xmlRequest.onloadend = function() {
djmoffat@1099:                 // Use inbuilt WAVE decoder first
n@1102:                 if (this.status == -1) {return;}
djmoffat@1099:                 var waveObj = new WAVE();
djmoffat@1099:                 if (waveObj.open(bufferObj.xmlRequest.response) == 0)
djmoffat@1099:                 {
djmoffat@1099:                     bufferObj.buffer = audioContext.createBuffer(waveObj.num_channels,waveObj.num_samples,waveObj.sample_rate);
djmoffat@1099:                     for (var c=0; c<waveObj.num_channels; c++)
djmoffat@1099:                     {
djmoffat@1099:                         var buffer_ptr = bufferObj.buffer.getChannelData(c);
djmoffat@1099:                         for (var n=0; n<waveObj.num_samples; n++)
djmoffat@1099:                         {
djmoffat@1099:                             buffer_ptr[n] = waveObj.decoded_data[c][n];
djmoffat@1099:                         }
djmoffat@1099:                     }
djmoffat@1099:                     
djmoffat@1099:                     delete waveObj;
djmoffat@1099:                 } else {
djmoffat@1099:                     audioContext.decodeAudioData(bufferObj.xmlRequest.response, function(decodedData) {
djmoffat@1099:                         bufferObj.buffer = decodedData;
djmoffat@1099:                     }, function(e){
djmoffat@1099:                         // Should only be called if there was an error, but sometimes gets called continuously
djmoffat@1099:                         // Check here if the error is genuine
djmoffat@1099:                         if (bufferObj.xmlRequest.response == undefined) {
djmoffat@1099:                             // Genuine error
djmoffat@1099:                             console.log('FATAL - Error loading buffer on '+audioObj.id);
djmoffat@1099:                             if (request.status == 404)
djmoffat@1099:                             {
djmoffat@1099:                                 console.log('FATAL - Fragment '+audioObj.id+' 404 error');
djmoffat@1099:                                 console.log('URL: '+audioObj.url);
djmoffat@1099:                                 errorSessionDump('Fragment '+audioObj.id+' 404 error');
djmoffat@1099:                             }
n@1102:                             this.parent.status = -1;
djmoffat@1099:                         }
djmoffat@1099:                     });
djmoffat@1099:                 }
djmoffat@1099:                 if (bufferObj.buffer != undefined)
djmoffat@1099:                 {
djmoffat@1099:                     bufferObj.status = 2;
djmoffat@1099:                     calculateLoudness(bufferObj,"I");
djmoffat@1099:                 }
djmoffat@1099: 			};
n@1102:             
n@1102:             // Create callback for any error in loading
n@1102:             this.xmlRequest.onerror = function() {
n@1102:                 this.parent.status = -1;
n@1102:                 for (var i=0; i<this.parent.users.length; i++)
n@1102:                 {
n@1102:                     this.parent.users[i].state = -1;
n@1102:                     if (this.parent.users[i].interfaceDOM != null)
n@1102:                     {
n@1102:                         this.parent.users[i].bufferLoaded(this);
n@1102:                     }
n@1102:                 }
n@1102:             }
n@1102:             
djmoffat@1099: 			this.progress = 0;
djmoffat@1099: 			this.progressCallback = function(event){
djmoffat@1099: 				if (event.lengthComputable)
djmoffat@1099: 				{
djmoffat@1099: 					this.parent.progress = event.loaded / event.total;
djmoffat@1099: 					for (var i=0; i<this.parent.users.length; i++)
djmoffat@1099: 					{
djmoffat@1099: 						if(this.parent.users[i].interfaceDOM != null)
djmoffat@1099: 						{
djmoffat@1099: 							if (typeof this.parent.users[i].interfaceDOM.updateLoading === "function")
djmoffat@1099: 							{
djmoffat@1099: 								this.parent.users[i].interfaceDOM.updateLoading(this.parent.progress*100);
djmoffat@1099: 							}
djmoffat@1099: 						}
djmoffat@1099: 					}
djmoffat@1099: 				}
djmoffat@1099: 			};
djmoffat@1099: 			this.xmlRequest.addEventListener("progress", this.progressCallback);
djmoffat@1099:             this.status = 1;
djmoffat@1099: 			this.xmlRequest.send();
djmoffat@1099: 		};
djmoffat@1099:         
djmoffat@1099:         this.registerAudioObject = function(audioObject)
djmoffat@1099:         {
djmoffat@1099:             // Called by an audioObject to register to the buffer for use
djmoffat@1099:             // First check if already in the register pool
djmoffat@1099:             for (var objects of this.users)
djmoffat@1099:             {
djmoffat@1099:                 if (audioObject.id == objects.id){return 0;}
djmoffat@1099:             }
djmoffat@1099:             this.users.push(audioObject);
n@1102:             if (this.status == 3 || this.status == -1)
djmoffat@1099:             {
djmoffat@1099:                 // The buffer is already ready, trigger bufferLoaded
djmoffat@1099:                 audioObject.bufferLoaded(this);
djmoffat@1099:             }
djmoffat@1099:         }
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.play = function(id) {
djmoffat@1099: 		// Start the timer and set the audioEngine state to playing (1)
djmoffat@1099: 		if (this.status == 0 && this.loopPlayback) {
djmoffat@1099: 			// Check if all audioObjects are ready
djmoffat@1099: 			if(this.checkAllReady())
djmoffat@1099: 			{
djmoffat@1099: 				this.status = 1;
djmoffat@1099: 				this.setSynchronousLoop();
djmoffat@1099: 			}
djmoffat@1099: 		}
djmoffat@1099: 		else
djmoffat@1099: 		{
djmoffat@1099: 			this.status = 1;
djmoffat@1099: 		}
djmoffat@1099: 		if (this.status== 1) {
djmoffat@1099: 			this.timer.startTest();
djmoffat@1099: 			if (id == undefined) {
djmoffat@1099: 				id = -1;
djmoffat@1099: 				console.log('FATAL - Passed id was undefined - AudioEngineContext.play(id)');
djmoffat@1099: 				return;
djmoffat@1099: 			} else {
djmoffat@1099: 				interfaceContext.playhead.setTimePerPixel(this.audioObjects[id]);
djmoffat@1099: 			}
djmoffat@1099: 			if (this.loopPlayback) {
djmoffat@1099:                 var setTime = audioContext.currentTime;
djmoffat@1099: 				for (var i=0; i<this.audioObjects.length; i++)
djmoffat@1099: 				{
djmoffat@1099: 					this.audioObjects[i].play(setTime);
djmoffat@1099: 					if (id == i) {
djmoffat@1099: 						this.audioObjects[i].loopStart(setTime);
djmoffat@1099: 					} else {
djmoffat@1099: 						this.audioObjects[i].loopStop(setTime);
djmoffat@1099: 					}
djmoffat@1099: 				}
djmoffat@1099: 			} else {
djmoffat@1099:                 var setTime = audioContext.currentTime+0.1;
djmoffat@1099: 				for (var i=0; i<this.audioObjects.length; i++)
djmoffat@1099: 				{
djmoffat@1099: 					if (i != id) {
djmoffat@1099: 						this.audioObjects[i].stop(setTime);
djmoffat@1099: 					} else if (i == id) {
djmoffat@1099: 						this.audioObjects[id].play(setTime);
djmoffat@1099: 					}
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 			interfaceContext.playhead.start();
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.stop = function() {
djmoffat@1099: 		// Send stop and reset command to all playback buffers
djmoffat@1099: 		if (this.status == 1) {
djmoffat@1099:             var setTime = audioContext.currentTime+0.1;
djmoffat@1099: 			for (var i=0; i<this.audioObjects.length; i++)
djmoffat@1099: 			{
djmoffat@1099: 				this.audioObjects[i].stop(setTime);
djmoffat@1099: 			}
djmoffat@1099: 			interfaceContext.playhead.stop();
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.newTrack = function(element) {
djmoffat@1099: 		// Pull data from given URL into new audio buffer
djmoffat@1099: 		// URLs must either be from the same source OR be setup to 'Access-Control-Allow-Origin'
djmoffat@1099: 		
djmoffat@1099: 		// Create the audioObject with ID of the new track length;
djmoffat@1099: 		audioObjectId = this.audioObjects.length;
djmoffat@1099: 		this.audioObjects[audioObjectId] = new audioObject(audioObjectId);
djmoffat@1099: 
djmoffat@1099: 		// Check if audioObject buffer is currently stored by full URL
djmoffat@1099: 		var URL = testState.currentStateMap.hostURL + element.url;
djmoffat@1099: 		var buffer = null;
djmoffat@1099: 		for (var i=0; i<this.buffers.length; i++)
djmoffat@1099: 		{
djmoffat@1099: 			if (URL == this.buffers[i].url)
djmoffat@1099: 			{
djmoffat@1099: 				buffer = this.buffers[i];
djmoffat@1099: 				break;
djmoffat@1099: 			}
djmoffat@1099: 		}
djmoffat@1099: 		if (buffer == null)
djmoffat@1099: 		{
djmoffat@1099: 			console.log("[WARN]: Buffer was not loaded in pre-test! "+URL);
djmoffat@1099: 			buffer = new this.bufferObj();
djmoffat@1099:             this.buffers.push(buffer);
djmoffat@1099: 			buffer.getMedia(URL);
djmoffat@1099: 		}
djmoffat@1099: 		this.audioObjects[audioObjectId].specification = element;
djmoffat@1099: 		this.audioObjects[audioObjectId].url = URL;
djmoffat@1099: 		// Obtain store node
djmoffat@1099: 		var aeNodes = this.pageStore.XMLDOM.getElementsByTagName('audioelement');
djmoffat@1099: 		for (var i=0; i<aeNodes.length; i++)
djmoffat@1099: 		{
djmoffat@1099: 			if(aeNodes[i].id == element.id)
djmoffat@1099: 			{
djmoffat@1099: 				this.audioObjects[audioObjectId].storeDOM = aeNodes[i];
djmoffat@1099: 				break;
djmoffat@1099: 			}
djmoffat@1099: 		}
djmoffat@1099:         buffer.registerAudioObject(this.audioObjects[audioObjectId]);
djmoffat@1099: 		return this.audioObjects[audioObjectId];
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.newTestPage = function(audioHolderObject,store) {
djmoffat@1099: 		this.pageStore = store;
n@1102: 		this.status = 0;
djmoffat@1099: 		this.audioObjectsReady = false;
djmoffat@1099: 		this.metric.reset();
djmoffat@1099: 		for (var i=0; i < this.buffers.length; i++)
djmoffat@1099: 		{
djmoffat@1099: 			this.buffers[i].users = [];
djmoffat@1099: 		}
djmoffat@1099: 		this.audioObjects = [];
djmoffat@1099:         this.timer = new timer();
djmoffat@1099:         this.loopPlayback = audioHolderObject.loop;
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.checkAllPlayed = function() {
djmoffat@1099: 		arr = [];
djmoffat@1099: 		for (var id=0; id<this.audioObjects.length; id++) {
djmoffat@1099: 			if (this.audioObjects[id].metric.wasListenedTo == false) {
djmoffat@1099: 				arr.push(this.audioObjects[id].id);
djmoffat@1099: 			}
djmoffat@1099: 		}
djmoffat@1099: 		return arr;
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.checkAllReady = function() {
djmoffat@1099: 		var ready = true;
djmoffat@1099: 		for (var i=0; i<this.audioObjects.length; i++) {
djmoffat@1099: 			if (this.audioObjects[i].state == 0) {
djmoffat@1099: 				// Track not ready
djmoffat@1099: 				console.log('WAIT -- audioObject '+i+' not ready yet!');
djmoffat@1099: 				ready = false;
djmoffat@1099: 			};
djmoffat@1099: 		}
djmoffat@1099: 		return ready;
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.setSynchronousLoop = function() {
djmoffat@1099: 		// Pads the signals so they are all exactly the same length
djmoffat@1099: 		var length = 0;
djmoffat@1099: 		var maxId;
djmoffat@1099: 		for (var i=0; i<this.audioObjects.length; i++)
djmoffat@1099: 		{
djmoffat@1099: 			if (length < this.audioObjects[i].buffer.buffer.length)
djmoffat@1099: 			{
djmoffat@1099: 				length = this.audioObjects[i].buffer.buffer.length;
djmoffat@1099: 				maxId = i;
djmoffat@1099: 			}
djmoffat@1099: 		}
djmoffat@1099: 		// Extract the audio and zero-pad
djmoffat@1099: 		for (var i=0; i<this.audioObjects.length; i++)
djmoffat@1099: 		{
djmoffat@1099: 			var orig = this.audioObjects[i].buffer.buffer;
djmoffat@1099: 			var hold = audioContext.createBuffer(orig.numberOfChannels,length,orig.sampleRate);
djmoffat@1099: 			for (var c=0; c<orig.numberOfChannels; c++)
djmoffat@1099: 			{
djmoffat@1099: 				var inData = hold.getChannelData(c);
djmoffat@1099: 				var outData = orig.getChannelData(c);
djmoffat@1099: 				for (var n=0; n<orig.length; n++)
djmoffat@1099: 				{inData[n] = outData[n];}
djmoffat@1099: 			}
djmoffat@1099: 			hold.playbackGain = orig.playbackGain;
djmoffat@1099: 			hold.lufs = orig.lufs;
djmoffat@1099: 			this.audioObjects[i].buffer.buffer = hold;
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099:     
djmoffat@1099:     this.exportXML = function()
djmoffat@1099:     {
djmoffat@1099:         
djmoffat@1099:     };
djmoffat@1099: 	
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function audioObject(id) {
djmoffat@1099: 	// The main buffer object with common control nodes to the AudioEngine
djmoffat@1099: 	
djmoffat@1099: 	this.specification;
djmoffat@1099: 	this.id = id;
djmoffat@1099: 	this.state = 0; // 0 - no data, 1 - ready
djmoffat@1099: 	this.url = null; // Hold the URL given for the output back to the results.
djmoffat@1099: 	this.metric = new metricTracker(this);
djmoffat@1099: 	this.storeDOM = null;
djmoffat@1099: 	
djmoffat@1099: 	// Bindings for GUI
djmoffat@1099: 	this.interfaceDOM = null;
djmoffat@1099: 	this.commentDOM = null;
djmoffat@1099: 	
djmoffat@1099: 	// Create a buffer and external gain control to allow internal patching of effects and volume leveling.
djmoffat@1099: 	this.bufferNode = undefined;
djmoffat@1099: 	this.outputGain = audioContext.createGain();
djmoffat@1099: 	
djmoffat@1099: 	this.onplayGain = 1.0;
djmoffat@1099: 	
djmoffat@1099: 	// Connect buffer to the audio graph
djmoffat@1099: 	this.outputGain.connect(audioEngineContext.outputGain);
djmoffat@1099: 	
djmoffat@1099: 	// the audiobuffer is not designed for multi-start playback
djmoffat@1099: 	// When stopeed, the buffer node is deleted and recreated with the stored buffer.
djmoffat@1099: 	this.buffer;
djmoffat@1099: 	
djmoffat@1099: 	this.bufferLoaded = function(callee)
djmoffat@1099: 	{
djmoffat@1099: 		// Called by the associated buffer when it has finished loading, will then 'bind' the buffer to the
djmoffat@1099: 		// audioObject and trigger the interfaceDOM.enable() function for user feedback
n@1102:         if (callee.status == -1) {
n@1102:             // ERROR
n@1102:             this.state = -1;
n@1102:             if (this.interfaceDOM != null) {this.interfaceDOM.error();}
n@1102:             this.buffer = callee;
n@1102:             return;
n@1102:         }
djmoffat@1099: 		if (audioEngineContext.loopPlayback){
djmoffat@1099: 			// First copy the buffer into this.buffer
djmoffat@1099: 			this.buffer = new audioEngineContext.bufferObj();
djmoffat@1099: 			this.buffer.url = callee.url;
djmoffat@1099: 			this.buffer.buffer = audioContext.createBuffer(callee.buffer.numberOfChannels, callee.buffer.length, callee.buffer.sampleRate);
djmoffat@1099: 			for (var c=0; c<callee.buffer.numberOfChannels; c++)
djmoffat@1099: 			{
djmoffat@1099: 				var src = callee.buffer.getChannelData(c);
djmoffat@1099: 				var dst = this.buffer.buffer.getChannelData(c);
djmoffat@1099: 				for (var n=0; n<src.length; n++)
djmoffat@1099: 				{
djmoffat@1099: 					dst[n] = src[n];
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 		} else {
djmoffat@1099: 			this.buffer = callee;
djmoffat@1099: 		}
djmoffat@1099: 		this.state = 1;
djmoffat@1099: 		this.buffer.buffer.playbackGain = callee.buffer.playbackGain;
djmoffat@1099: 		this.buffer.buffer.lufs = callee.buffer.lufs;
djmoffat@1099: 		var targetLUFS = this.specification.parent.loudness || specification.loudness;
djmoffat@1099: 		if (typeof targetLUFS === "number")
djmoffat@1099: 		{
djmoffat@1099: 			this.buffer.buffer.playbackGain = decibelToLinear(targetLUFS - this.buffer.buffer.lufs);
djmoffat@1099: 		} else {
djmoffat@1099: 			this.buffer.buffer.playbackGain = 1.0;
djmoffat@1099: 		}
djmoffat@1099: 		if (this.interfaceDOM != null) {
djmoffat@1099: 			this.interfaceDOM.enable();
djmoffat@1099: 		}
djmoffat@1099: 		this.onplayGain = decibelToLinear(this.specification.gain)*this.buffer.buffer.playbackGain;
djmoffat@1099: 		this.storeDOM.setAttribute('playGain',linearToDecibel(this.onplayGain));
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.bindInterface = function(interfaceObject)
djmoffat@1099: 	{
djmoffat@1099: 		this.interfaceDOM = interfaceObject;
djmoffat@1099: 		this.metric.initialise(interfaceObject.getValue());
djmoffat@1099: 		if (this.state == 1)
djmoffat@1099: 		{
djmoffat@1099: 			this.interfaceDOM.enable();
n@1102: 		} else if (this.state == -1) {
n@1102:             // ERROR
n@1102:             this.interfaceDOM.error();
n@1102:             return;
n@1102:         }
djmoffat@1099: 		this.storeDOM.setAttribute('presentedId',interfaceObject.getPresentedId());
djmoffat@1099: 	};
djmoffat@1099:     
djmoffat@1099: 	this.loopStart = function(setTime) {
djmoffat@1099: 		this.outputGain.gain.linearRampToValueAtTime(this.onplayGain,setTime);
djmoffat@1099: 		this.metric.startListening(audioEngineContext.timer.getTestTime());
djmoffat@1099:         this.interfaceDOM.startPlayback();
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.loopStop = function(setTime) {
djmoffat@1099: 		if (this.outputGain.gain.value != 0.0) {
djmoffat@1099: 			this.outputGain.gain.linearRampToValueAtTime(0.0,setTime);
djmoffat@1099: 			this.metric.stopListening(audioEngineContext.timer.getTestTime());
djmoffat@1099: 		}
djmoffat@1099:         this.interfaceDOM.stopPlayback();
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.play = function(startTime) {
djmoffat@1099: 		if (this.bufferNode == undefined && this.buffer.buffer != undefined) {
djmoffat@1099: 			this.bufferNode = audioContext.createBufferSource();
djmoffat@1099: 			this.bufferNode.owner = this;
djmoffat@1099: 			this.bufferNode.connect(this.outputGain);
djmoffat@1099: 			this.bufferNode.buffer = this.buffer.buffer;
djmoffat@1099: 			this.bufferNode.loop = audioEngineContext.loopPlayback;
djmoffat@1099: 			this.bufferNode.onended = function(event) {
djmoffat@1099: 				// Safari does not like using 'this' to reference the calling object!
djmoffat@1099: 				//event.currentTarget.owner.metric.stopListening(audioEngineContext.timer.getTestTime(),event.currentTarget.owner.getCurrentPosition());
n@1102:                 if (event.currentTarget != null) {
n@1102: 				    event.currentTarget.owner.stop(audioContext.currentTime+1);
n@1102:                 }
djmoffat@1099: 			};
djmoffat@1099: 			if (this.bufferNode.loop == false) {
djmoffat@1099: 				this.metric.startListening(audioEngineContext.timer.getTestTime());
djmoffat@1099:                 this.outputGain.gain.setValueAtTime(this.onplayGain,startTime);
djmoffat@1099:                 this.interfaceDOM.startPlayback();
djmoffat@1099: 			} else {
djmoffat@1099:                  this.outputGain.gain.setValueAtTime(0.0,startTime);
djmoffat@1099:             }
djmoffat@1099: 			this.bufferNode.start(startTime);
n@1102:             this.bufferNode.playbackStartTime = audioEngineContext.timer.getTestTime();
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.stop = function(stopTime) {
djmoffat@1099:         this.outputGain.gain.cancelScheduledValues(audioContext.currentTime);
djmoffat@1099: 		if (this.bufferNode != undefined)
djmoffat@1099: 		{
djmoffat@1099: 			this.metric.stopListening(audioEngineContext.timer.getTestTime(),this.getCurrentPosition());
djmoffat@1099: 			this.bufferNode.stop(stopTime);
djmoffat@1099: 			this.bufferNode = undefined;
djmoffat@1099: 		}
djmoffat@1099:         this.outputGain.gain.value = 0.0;
djmoffat@1099:         this.interfaceDOM.stopPlayback();
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.getCurrentPosition = function() {
djmoffat@1099: 		var time = audioEngineContext.timer.getTestTime();
djmoffat@1099: 		if (this.bufferNode != undefined) {
n@1102:             var position = (time - this.bufferNode.playbackStartTime)%this.buffer.buffer.duration;
n@1102:             if (isNaN(position)){return 0;}
n@1102:             return position;
djmoffat@1099: 		} else {
djmoffat@1099: 			return 0;
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.exportXMLDOM = function() {
djmoffat@1099: 		var file = storage.document.createElement('file');
djmoffat@1099: 		file.setAttribute('sampleRate',this.buffer.buffer.sampleRate);
djmoffat@1099: 		file.setAttribute('channels',this.buffer.buffer.numberOfChannels);
djmoffat@1099: 		file.setAttribute('sampleCount',this.buffer.buffer.length);
djmoffat@1099: 		file.setAttribute('duration',this.buffer.buffer.duration);
djmoffat@1099: 		this.storeDOM.appendChild(file);
djmoffat@1099: 		if (this.specification.type != 'outside-reference') {
djmoffat@1099: 			var interfaceXML = this.interfaceDOM.exportXMLDOM(this);
djmoffat@1099: 			if (interfaceXML != null)
djmoffat@1099: 			{
djmoffat@1099: 				if (interfaceXML.length == undefined) {
djmoffat@1099: 					this.storeDOM.appendChild(interfaceXML);
djmoffat@1099: 				} else {
djmoffat@1099: 					for (var i=0; i<interfaceXML.length; i++)
djmoffat@1099: 					{
djmoffat@1099: 						this.storeDOM.appendChild(interfaceXML[i]);
djmoffat@1099: 					}
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 			if (this.commentDOM != null) {
djmoffat@1099: 				this.storeDOM.appendChild(this.commentDOM.exportXMLDOM(this));
djmoffat@1099: 			}
djmoffat@1099: 		}
djmoffat@1099: 		var nodes = this.metric.exportXMLDOM();
djmoffat@1099: 		var mroot = this.storeDOM.getElementsByTagName('metric')[0];
djmoffat@1099: 		for (var i=0; i<nodes.length; i++)
djmoffat@1099: 		{
djmoffat@1099: 			mroot.appendChild(nodes[i]);
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function timer()
djmoffat@1099: {
djmoffat@1099: 	/* Timer object used in audioEngine to keep track of session timings
djmoffat@1099: 	 * Uses the timer of the web audio API, so sample resolution
djmoffat@1099: 	 */
djmoffat@1099: 	this.testStarted = false;
djmoffat@1099: 	this.testStartTime = 0;
djmoffat@1099: 	this.testDuration = 0;
djmoffat@1099: 	this.minimumTestTime = 0; // No minimum test time
djmoffat@1099: 	this.startTest = function()
djmoffat@1099: 	{
djmoffat@1099: 		if (this.testStarted == false)
djmoffat@1099: 		{
djmoffat@1099: 			this.testStartTime = audioContext.currentTime;
djmoffat@1099: 			this.testStarted = true;
djmoffat@1099: 			this.updateTestTime();
djmoffat@1099: 			audioEngineContext.metric.initialiseTest();
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	this.stopTest = function()
djmoffat@1099: 	{
djmoffat@1099: 		if (this.testStarted)
djmoffat@1099: 		{
djmoffat@1099: 			this.testDuration = this.getTestTime();
djmoffat@1099: 			this.testStarted = false;
djmoffat@1099: 		} else {
djmoffat@1099: 			console.log('ERR: Test tried to end before beginning');
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	this.updateTestTime = function()
djmoffat@1099: 	{
djmoffat@1099: 		if (this.testStarted)
djmoffat@1099: 		{
djmoffat@1099: 			this.testDuration = audioContext.currentTime - this.testStartTime;
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	this.getTestTime = function()
djmoffat@1099: 	{
djmoffat@1099: 		this.updateTestTime();
djmoffat@1099: 		return this.testDuration;
djmoffat@1099: 	};
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function sessionMetrics(engine,specification)
djmoffat@1099: {
djmoffat@1099: 	/* Used by audioEngine to link to audioObjects to minimise the timer call timers;
djmoffat@1099: 	 */
djmoffat@1099: 	this.engine = engine;
djmoffat@1099: 	this.lastClicked = -1;
djmoffat@1099: 	this.data = -1;
djmoffat@1099: 	this.reset = function() {
djmoffat@1099: 		this.lastClicked = -1;
djmoffat@1099: 		this.data = -1;
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.enableElementInitialPosition = false;
djmoffat@1099: 	this.enableElementListenTracker = false;
djmoffat@1099: 	this.enableElementTimer = false;
djmoffat@1099: 	this.enableElementTracker = false;
djmoffat@1099: 	this.enableFlagListenedTo = false;
djmoffat@1099: 	this.enableFlagMoved = false;
djmoffat@1099: 	this.enableTestTimer = false;
djmoffat@1099: 	// Obtain the metrics enabled
djmoffat@1099: 	for (var i=0; i<specification.metrics.enabled.length; i++)
djmoffat@1099: 	{
djmoffat@1099: 		var node = specification.metrics.enabled[i];
djmoffat@1099: 		switch(node)
djmoffat@1099: 		{
djmoffat@1099: 		case 'testTimer':
djmoffat@1099: 			this.enableTestTimer = true;
djmoffat@1099: 			break;
djmoffat@1099: 		case 'elementTimer':
djmoffat@1099: 			this.enableElementTimer = true;
djmoffat@1099: 			break;
djmoffat@1099: 		case 'elementTracker':
djmoffat@1099: 			this.enableElementTracker = true;
djmoffat@1099: 			break;
djmoffat@1099: 		case 'elementListenTracker':
djmoffat@1099: 			this.enableElementListenTracker = true;
djmoffat@1099: 			break;
djmoffat@1099: 		case 'elementInitialPosition':
djmoffat@1099: 			this.enableElementInitialPosition = true;
djmoffat@1099: 			break;
djmoffat@1099: 		case 'elementFlagListenedTo':
djmoffat@1099: 			this.enableFlagListenedTo = true;
djmoffat@1099: 			break;
djmoffat@1099: 		case 'elementFlagMoved':
djmoffat@1099: 			this.enableFlagMoved = true;
djmoffat@1099: 			break;
djmoffat@1099: 		case 'elementFlagComments':
djmoffat@1099: 			this.enableFlagComments = true;
djmoffat@1099: 			break;
djmoffat@1099: 		}
djmoffat@1099: 	}
djmoffat@1099: 	this.initialiseTest = function(){};
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function metricTracker(caller)
djmoffat@1099: {
djmoffat@1099: 	/* Custom object to track and collect metric data
djmoffat@1099: 	 * Used only inside the audioObjects object.
djmoffat@1099: 	 */
djmoffat@1099: 	
djmoffat@1099: 	this.listenedTimer = 0;
djmoffat@1099: 	this.listenStart = 0;
djmoffat@1099: 	this.listenHold = false;
djmoffat@1099: 	this.initialPosition = -1;
djmoffat@1099: 	this.movementTracker = [];
djmoffat@1099: 	this.listenTracker =[];
djmoffat@1099: 	this.wasListenedTo = false;
djmoffat@1099: 	this.wasMoved = false;
djmoffat@1099: 	this.hasComments = false;
djmoffat@1099: 	this.parent = caller;
djmoffat@1099: 	
djmoffat@1099: 	this.initialise = function(position)
djmoffat@1099: 	{
djmoffat@1099: 		if (this.initialPosition == -1) {
djmoffat@1099: 			this.initialPosition = position;
djmoffat@1099: 			this.moved(0,position);
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.moved = function(time,position)
djmoffat@1099: 	{
djmoffat@1099: 		if (time > 0) {this.wasMoved = true;}
djmoffat@1099: 		this.movementTracker[this.movementTracker.length] = [time, position];
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.startListening = function(time)
djmoffat@1099: 	{
djmoffat@1099: 		if (this.listenHold == false)
djmoffat@1099: 		{
djmoffat@1099: 			this.wasListenedTo = true;
djmoffat@1099: 			this.listenStart = time;
djmoffat@1099: 			this.listenHold = true;
djmoffat@1099: 			
djmoffat@1099: 			var evnt = document.createElement('event');
djmoffat@1099: 			var testTime = document.createElement('testTime');
djmoffat@1099: 			testTime.setAttribute('start',time);
djmoffat@1099: 			var bufferTime = document.createElement('bufferTime');
djmoffat@1099: 			bufferTime.setAttribute('start',this.parent.getCurrentPosition());
djmoffat@1099: 			evnt.appendChild(testTime);
djmoffat@1099: 			evnt.appendChild(bufferTime);
djmoffat@1099: 			this.listenTracker.push(evnt);
djmoffat@1099: 			
djmoffat@1099: 			console.log('slider ' + this.parent.id + ' played (' + time + ')'); // DEBUG/SAFETY: show played slider id
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.stopListening = function(time,bufferStopTime)
djmoffat@1099: 	{
djmoffat@1099: 		if (this.listenHold == true)
djmoffat@1099: 		{
djmoffat@1099: 			var diff = time - this.listenStart;
djmoffat@1099: 			this.listenedTimer += (diff);
djmoffat@1099: 			this.listenStart = 0;
djmoffat@1099: 			this.listenHold = false;
djmoffat@1099: 			
djmoffat@1099: 			var evnt = this.listenTracker[this.listenTracker.length-1];
djmoffat@1099: 			var testTime = evnt.getElementsByTagName('testTime')[0];
djmoffat@1099: 			var bufferTime = evnt.getElementsByTagName('bufferTime')[0];
djmoffat@1099: 			testTime.setAttribute('stop',time);
djmoffat@1099: 			if (bufferStopTime == undefined) {
djmoffat@1099: 				bufferTime.setAttribute('stop',this.parent.getCurrentPosition());
djmoffat@1099: 			} else {
djmoffat@1099: 				bufferTime.setAttribute('stop',bufferStopTime);
djmoffat@1099: 			}
djmoffat@1099: 			console.log('slider ' + this.parent.id + ' played for (' + diff + ')'); // DEBUG/SAFETY: show played slider id
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.exportXMLDOM = function() {
djmoffat@1099: 		var storeDOM = [];
djmoffat@1099: 		if (audioEngineContext.metric.enableElementTimer) {
djmoffat@1099: 			var mElementTimer = storage.document.createElement('metricresult');
djmoffat@1099: 			mElementTimer.setAttribute('name','enableElementTimer');
djmoffat@1099: 			mElementTimer.textContent = this.listenedTimer;
djmoffat@1099: 			storeDOM.push(mElementTimer);
djmoffat@1099: 		}
djmoffat@1099: 		if (audioEngineContext.metric.enableElementTracker) {
djmoffat@1099: 			var elementTrackerFull = storage.document.createElement('metricResult');
djmoffat@1099: 			elementTrackerFull.setAttribute('name','elementTrackerFull');
djmoffat@1099: 			for (var k=0; k<this.movementTracker.length; k++)
djmoffat@1099: 			{
n@1102: 				var timePos = storage.document.createElement('movement');
n@1102:                 timePos.setAttribute("time",this.movementTracker[k][0]);
n@1102:                 timePos.setAttribute("value",this.movementTracker[k][1]);
djmoffat@1099: 				elementTrackerFull.appendChild(timePos);
djmoffat@1099: 			}
djmoffat@1099: 			storeDOM.push(elementTrackerFull);
djmoffat@1099: 		}
djmoffat@1099: 		if (audioEngineContext.metric.enableElementListenTracker) {
djmoffat@1099: 			var elementListenTracker = storage.document.createElement('metricResult');
djmoffat@1099: 			elementListenTracker.setAttribute('name','elementListenTracker');
djmoffat@1099: 			for (var k=0; k<this.listenTracker.length; k++) {
djmoffat@1099: 				elementListenTracker.appendChild(this.listenTracker[k]);
djmoffat@1099: 			}
djmoffat@1099: 			storeDOM.push(elementListenTracker);
djmoffat@1099: 		}
djmoffat@1099: 		if (audioEngineContext.metric.enableElementInitialPosition) {
djmoffat@1099: 			var elementInitial = storage.document.createElement('metricResult');
djmoffat@1099: 			elementInitial.setAttribute('name','elementInitialPosition');
djmoffat@1099: 			elementInitial.textContent = this.initialPosition;
djmoffat@1099: 			storeDOM.push(elementInitial);
djmoffat@1099: 		}
djmoffat@1099: 		if (audioEngineContext.metric.enableFlagListenedTo) {
djmoffat@1099: 			var flagListenedTo = storage.document.createElement('metricResult');
djmoffat@1099: 			flagListenedTo.setAttribute('name','elementFlagListenedTo');
djmoffat@1099: 			flagListenedTo.textContent = this.wasListenedTo;
djmoffat@1099: 			storeDOM.push(flagListenedTo);
djmoffat@1099: 		}
djmoffat@1099: 		if (audioEngineContext.metric.enableFlagMoved) {
djmoffat@1099: 			var flagMoved = storage.document.createElement('metricResult');
djmoffat@1099: 			flagMoved.setAttribute('name','elementFlagMoved');
djmoffat@1099: 			flagMoved.textContent = this.wasMoved;
djmoffat@1099: 			storeDOM.push(flagMoved);
djmoffat@1099: 		}
djmoffat@1099: 		if (audioEngineContext.metric.enableFlagComments) {
djmoffat@1099: 			var flagComments = storage.document.createElement('metricResult');
djmoffat@1099: 			flagComments.setAttribute('name','elementFlagComments');
djmoffat@1099: 			if (this.parent.commentDOM == null)
djmoffat@1099: 				{flag.textContent = 'false';}
djmoffat@1099: 			else if (this.parent.commentDOM.textContent.length == 0) 
djmoffat@1099: 				{flag.textContent = 'false';}
djmoffat@1099: 			else 
djmoffat@1099: 				{flag.textContet = 'true';}
djmoffat@1099: 			storeDOM.push(flagComments);
djmoffat@1099: 		}
djmoffat@1099: 		return storeDOM;
djmoffat@1099: 	};
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function randomiseOrder(input)
djmoffat@1099: {
djmoffat@1099: 	// This takes an array of information and randomises the order
djmoffat@1099: 	var N = input.length;
djmoffat@1099: 	
djmoffat@1099: 	var inputSequence = []; // For safety purposes: keep track of randomisation
djmoffat@1099: 	for (var counter = 0; counter < N; ++counter) 
djmoffat@1099: 		inputSequence.push(counter) // Fill array
djmoffat@1099: 	var inputSequenceClone = inputSequence.slice(0);
djmoffat@1099: 	
djmoffat@1099: 	var holdArr = [];
djmoffat@1099: 	var outputSequence = [];
djmoffat@1099: 	for (var n=0; n<N; n++)
djmoffat@1099: 	{
djmoffat@1099: 		// First pick a random number
djmoffat@1099: 		var r = Math.random();
djmoffat@1099: 		// Multiply and floor by the number of elements left
djmoffat@1099: 		r = Math.floor(r*input.length);
djmoffat@1099: 		// Pick out that element and delete from the array
djmoffat@1099: 		holdArr.push(input.splice(r,1)[0]);
djmoffat@1099: 		// Do the same with sequence
djmoffat@1099: 		outputSequence.push(inputSequence.splice(r,1)[0]);
djmoffat@1099: 	}
djmoffat@1099: 	console.log(inputSequenceClone.toString()); // print original array to console
djmoffat@1099: 	console.log(outputSequence.toString()); 	// print randomised array to console
djmoffat@1099: 	return holdArr;
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function returnDateNode()
djmoffat@1099: {
djmoffat@1099: 	// Create an XML Node for the Date and Time a test was conducted
djmoffat@1099: 	// Structure is
djmoffat@1099: 	// <datetime> 
djmoffat@1099: 	//	<date year="##" month="##" day="##">DD/MM/YY</date>
djmoffat@1099: 	//	<time hour="##" minute="##" sec="##">HH:MM:SS</time>
djmoffat@1099: 	// </datetime>
djmoffat@1099: 	var dateTime = new Date();
djmoffat@1099: 	var year = document.createAttribute('year');
djmoffat@1099: 	var month = document.createAttribute('month');
djmoffat@1099: 	var day = document.createAttribute('day');
djmoffat@1099: 	var hour = document.createAttribute('hour');
djmoffat@1099: 	var minute = document.createAttribute('minute');
djmoffat@1099: 	var secs = document.createAttribute('secs');
djmoffat@1099: 	
djmoffat@1099: 	year.nodeValue = dateTime.getFullYear();
djmoffat@1099: 	month.nodeValue = dateTime.getMonth()+1;
djmoffat@1099: 	day.nodeValue = dateTime.getDate();
djmoffat@1099: 	hour.nodeValue = dateTime.getHours();
djmoffat@1099: 	minute.nodeValue = dateTime.getMinutes();
djmoffat@1099: 	secs.nodeValue = dateTime.getSeconds();
djmoffat@1099: 	
djmoffat@1099: 	var hold = document.createElement("datetime");
djmoffat@1099: 	var date = document.createElement("date");
djmoffat@1099: 	date.textContent = year.nodeValue+'/'+month.nodeValue+'/'+day.nodeValue;
djmoffat@1099: 	var time = document.createElement("time");
djmoffat@1099: 	time.textContent = hour.nodeValue+':'+minute.nodeValue+':'+secs.nodeValue;
djmoffat@1099: 	
djmoffat@1099: 	date.setAttributeNode(year);
djmoffat@1099: 	date.setAttributeNode(month);
djmoffat@1099: 	date.setAttributeNode(day);
djmoffat@1099: 	time.setAttributeNode(hour);
djmoffat@1099: 	time.setAttributeNode(minute);
djmoffat@1099: 	time.setAttributeNode(secs);
djmoffat@1099: 	
djmoffat@1099: 	hold.appendChild(date);
djmoffat@1099: 	hold.appendChild(time);
djmoffat@1099: 	return hold;
djmoffat@1099: 	
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function Specification() {
djmoffat@1099: 	// Handles the decoding of the project specification XML into a simple JavaScript Object.
djmoffat@1099: 	
djmoffat@1099: 	this.interface = null;
djmoffat@1099: 	this.projectReturn = "null";
djmoffat@1099: 	this.randomiseOrder = null;
djmoffat@1099: 	this.testPages = null;
djmoffat@1099: 	this.pages = [];
djmoffat@1099: 	this.metrics = null;
djmoffat@1099: 	this.interfaces = null;
djmoffat@1099: 	this.loudness = null;
djmoffat@1099: 	this.errors = [];
djmoffat@1099: 	this.schema = null;
djmoffat@1099: 	
djmoffat@1099: 	this.processAttribute = function(attribute,schema)
djmoffat@1099: 	{
djmoffat@1099: 		// attribute is the string returned from getAttribute on the XML
djmoffat@1099: 		// schema is the <xs:attribute> node
djmoffat@1099: 		if (schema.getAttribute('name') == undefined && schema.getAttribute('ref') != undefined)
djmoffat@1099: 		{
djmoffat@1099: 			schema = this.schema.getAllElementsByName(schema.getAttribute('ref'))[0];
djmoffat@1099: 		}
djmoffat@1099: 		var defaultOpt = schema.getAttribute('default');
djmoffat@1099: 		if (attribute == null) {
djmoffat@1099: 			attribute = defaultOpt;
djmoffat@1099: 		}
djmoffat@1099: 		var dataType = schema.getAttribute('type');
djmoffat@1099: 		if (typeof dataType == "string") { dataType = dataType.substr(3);}
djmoffat@1099: 		else {dataType = "string";}
djmoffat@1099: 		if (attribute == null)
djmoffat@1099: 		{
djmoffat@1099: 			return attribute;
djmoffat@1099: 		}
djmoffat@1099: 		switch(dataType)
djmoffat@1099: 		{
djmoffat@1099: 		case "boolean":
djmoffat@1099: 			if (attribute == 'true'){attribute = true;}else{attribute=false;}
djmoffat@1099: 			break;
djmoffat@1099: 		case "negativeInteger":
djmoffat@1099: 		case "positiveInteger":
djmoffat@1099: 		case "nonNegativeInteger":
djmoffat@1099: 		case "nonPositiveInteger":
djmoffat@1099: 		case "integer":
djmoffat@1099: 		case "decimal":
djmoffat@1099: 		case "short":
djmoffat@1099: 			attribute = Number(attribute);
djmoffat@1099: 			break;
djmoffat@1099: 		case "string":
djmoffat@1099: 		default:
djmoffat@1099: 			attribute = String(attribute);
djmoffat@1099: 			break;
djmoffat@1099: 		}
djmoffat@1099: 		return attribute;
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.decode = function(projectXML) {
djmoffat@1099: 		this.errors = [];
djmoffat@1099: 		// projectXML - DOM Parsed document
djmoffat@1099: 		this.projectXML = projectXML.childNodes[0];
djmoffat@1099: 		var setupNode = projectXML.getElementsByTagName('setup')[0];
djmoffat@1099: 		var schemaSetup = this.schema.getAllElementsByName('setup')[0];
djmoffat@1099: 		// First decode the attributes
djmoffat@1099: 		var attributes = schemaSetup.getAllElementsByTagName('xs:attribute');
djmoffat@1099: 		for (var i in attributes)
djmoffat@1099: 		{
djmoffat@1099: 			if (isNaN(Number(i)) == true){break;}
djmoffat@1099: 			var attributeName = attributes[i].getAttribute('name');
djmoffat@1099: 			var projectAttr = setupNode.getAttribute(attributeName);
djmoffat@1099: 			projectAttr = this.processAttribute(projectAttr,attributes[i]);
djmoffat@1099: 			switch(typeof projectAttr)
djmoffat@1099: 			{
djmoffat@1099: 			case "number":
djmoffat@1099: 			case "boolean":
djmoffat@1099: 				eval('this.'+attributeName+' = '+projectAttr);
djmoffat@1099: 				break;
djmoffat@1099: 			case "string":
djmoffat@1099: 				eval('this.'+attributeName+' = "'+projectAttr+'"');
djmoffat@1099: 				break;
djmoffat@1099: 			}
djmoffat@1099: 			
djmoffat@1099: 		}
djmoffat@1099: 		
djmoffat@1099: 		this.metrics = new this.metricNode();
djmoffat@1099: 		
djmoffat@1099: 		this.metrics.decode(this,setupNode.getElementsByTagName('metric')[0]);
djmoffat@1099: 		
djmoffat@1099: 		// Now process the survey node options
djmoffat@1099: 		var survey = setupNode.getElementsByTagName('survey');
djmoffat@1099: 		for (var i in survey) {
djmoffat@1099: 			if (isNaN(Number(i)) == true){break;}
djmoffat@1099: 			var location = survey[i].getAttribute('location');
djmoffat@1099: 			if (location == 'pre' || location == 'before')
djmoffat@1099: 			{
djmoffat@1099: 				if (this.preTest != null){this.errors.push("Already a pre/before test survey defined! Ignoring second!!");}
djmoffat@1099: 				else {
djmoffat@1099: 					this.preTest = new this.surveyNode();
djmoffat@1099: 					this.preTest.decode(this,survey[i]);
djmoffat@1099: 				}
djmoffat@1099: 			} else if (location == 'post' || location == 'after') {
djmoffat@1099: 				if (this.postTest != null){this.errors.push("Already a post/after test survey defined! Ignoring second!!");}
djmoffat@1099: 				else {
djmoffat@1099: 					this.postTest = new this.surveyNode();
djmoffat@1099: 					this.postTest.decode(this,survey[i]);
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 		}
djmoffat@1099: 		
djmoffat@1099: 		var interfaceNode = setupNode.getElementsByTagName('interface');
djmoffat@1099: 		if (interfaceNode.length > 1)
djmoffat@1099: 		{
djmoffat@1099: 			this.errors.push("Only one <interface> node in the <setup> node allowed! Others except first ingnored!");
djmoffat@1099: 		}
djmoffat@1099: 		this.interfaces = new this.interfaceNode();
djmoffat@1099: 		if (interfaceNode.length != 0)
djmoffat@1099: 		{
djmoffat@1099: 			interfaceNode = interfaceNode[0];
djmoffat@1099: 			this.interfaces.decode(this,interfaceNode,this.schema.getAllElementsByName('interface')[1]);
djmoffat@1099: 		}
djmoffat@1099: 		
djmoffat@1099: 		// Page tags
djmoffat@1099: 		var pageTags = projectXML.getElementsByTagName('page');
djmoffat@1099: 		var pageSchema = this.schema.getAllElementsByName('page')[0];
djmoffat@1099: 		for (var i=0; i<pageTags.length; i++)
djmoffat@1099: 		{
djmoffat@1099: 			var node = new this.page();
djmoffat@1099: 			node.decode(this,pageTags[i],pageSchema);
djmoffat@1099: 			this.pages.push(node);
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.encode = function()
djmoffat@1099: 	{
djmoffat@1099: 		var RootDocument = document.implementation.createDocument(null,"waet");
djmoffat@1099: 		var root = RootDocument.children[0];
djmoffat@1099:         root.setAttribute("xmlns:xsi","http://www.w3.org/2001/XMLSchema-instance");
djmoffat@1099:         root.setAttribute("xsi:noNamespaceSchemaLocation","test-schema.xsd");
djmoffat@1099: 		// Build setup node
djmoffat@1099:         var setup = RootDocument.createElement("setup");
djmoffat@1099:         var schemaSetup = this.schema.getAllElementsByName('setup')[0];
djmoffat@1099:         // First decode the attributes
djmoffat@1099:         var attributes = schemaSetup.getAllElementsByTagName('xs:attribute');
djmoffat@1099:         for (var i=0; i<attributes.length; i++)
djmoffat@1099:         {
djmoffat@1099:             var name = attributes[i].getAttribute("name");
djmoffat@1099:             if (name == undefined) {
djmoffat@1099:                 name = attributes[i].getAttribute("ref");
djmoffat@1099:             }
djmoffat@1099:             if(eval("this."+name+" != undefined") || attributes[i].getAttribute("use") == "required")
djmoffat@1099:             {
djmoffat@1099:                 eval("setup.setAttribute('"+name+"',this."+name+")");
djmoffat@1099:             }
djmoffat@1099:         }
djmoffat@1099:         root.appendChild(setup);
djmoffat@1099:         // Survey node
djmoffat@1099:         setup.appendChild(this.preTest.encode(RootDocument));
djmoffat@1099:         setup.appendChild(this.postTest.encode(RootDocument));
djmoffat@1099:         setup.appendChild(this.metrics.encode(RootDocument));
djmoffat@1099:         setup.appendChild(this.interfaces.encode(RootDocument));
djmoffat@1099:         for (var page of this.pages)
djmoffat@1099:         {
djmoffat@1099:             root.appendChild(page.encode(RootDocument));
djmoffat@1099:         }
djmoffat@1099: 		return RootDocument;
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.surveyNode = function() {
djmoffat@1099: 		this.location = null;
djmoffat@1099: 		this.options = [];
djmoffat@1099: 		this.schema = specification.schema.getAllElementsByName('survey')[0];
djmoffat@1099: 		
djmoffat@1099: 		this.OptionNode = function() {
djmoffat@1099: 			this.type = undefined;
djmoffat@1099: 			this.schema = specification.schema.getAllElementsByName('surveyentry')[0];
djmoffat@1099: 			this.id = undefined;
djmoffat@1099: 			this.mandatory = undefined;
djmoffat@1099: 			this.statement = undefined;
djmoffat@1099: 			this.boxsize = undefined;
djmoffat@1099: 			this.options = [];
djmoffat@1099: 			this.min = undefined;
djmoffat@1099: 			this.max = undefined;
djmoffat@1099: 			this.step = undefined;
djmoffat@1099: 			
djmoffat@1099: 			this.decode = function(parent,child)
djmoffat@1099: 			{
djmoffat@1099: 				var attributeMap = this.schema.getAllElementsByTagName('xs:attribute');
djmoffat@1099: 				for (var i in attributeMap){
djmoffat@1099: 					if(isNaN(Number(i)) == true){break;}
djmoffat@1099: 					var attributeName = attributeMap[i].getAttribute('name') || attributeMap[i].getAttribute('ref');
djmoffat@1099: 					var projectAttr = child.getAttribute(attributeName);
djmoffat@1099: 					projectAttr = parent.processAttribute(projectAttr,attributeMap[i]);
djmoffat@1099: 					switch(typeof projectAttr)
djmoffat@1099: 					{
djmoffat@1099: 					case "number":
djmoffat@1099: 					case "boolean":
djmoffat@1099: 						eval('this.'+attributeName+' = '+projectAttr);
djmoffat@1099: 						break;
djmoffat@1099: 					case "string":
djmoffat@1099: 						eval('this.'+attributeName+' = "'+projectAttr+'"');
djmoffat@1099: 						break;
djmoffat@1099: 					}
djmoffat@1099: 				}
djmoffat@1099: 				this.statement = child.getElementsByTagName('statement')[0].textContent;
djmoffat@1099: 				if (this.type == "checkbox" || this.type == "radio") {
djmoffat@1099: 					var children = child.getElementsByTagName('option');
djmoffat@1099: 					if (children.length == null) {
djmoffat@1099: 						console.log('Malformed' +child.nodeName+ 'entry');
djmoffat@1099: 						this.statement = 'Malformed' +child.nodeName+ 'entry';
djmoffat@1099: 						this.type = 'statement';
djmoffat@1099: 					} else {
djmoffat@1099: 						this.options = [];
djmoffat@1099: 						for (var i in children)
djmoffat@1099: 						{
djmoffat@1099: 							if (isNaN(Number(i))==true){break;}
djmoffat@1099: 							this.options.push({
djmoffat@1099: 								name: children[i].getAttribute('name'),
djmoffat@1099: 								text: children[i].textContent
djmoffat@1099: 							});
djmoffat@1099: 						}
djmoffat@1099: 					}
djmoffat@1099: 				}
djmoffat@1099: 			};
djmoffat@1099: 			
djmoffat@1099: 			this.exportXML = function(doc)
djmoffat@1099: 			{
n@1102: 				var node = doc.createElement('surveyentry');
djmoffat@1099: 				node.setAttribute('type',this.type);
djmoffat@1099: 				var statement = doc.createElement('statement');
djmoffat@1099: 				statement.textContent = this.statement;
djmoffat@1099: 				node.appendChild(statement);
djmoffat@1099: 				switch(this.type)
djmoffat@1099: 				{
djmoffat@1099: 				case "statement":
djmoffat@1099: 					break;
djmoffat@1099: 				case "question":
n@1102:                     node.id = this.id;
n@1102:                     if (this.mandatory != undefined) { node.setAttribute("mandatory",this.mandatory);}
n@1102:                     if (this.boxsize != undefined) {node.setAttribute("boxsize",this.boxsize);}
n@1102:                     break;
n@1102:                 case "number":
n@1102:                     node.id = this.id;
n@1102:                     if (this.mandatory != undefined) { node.setAttribute("mandatory",this.mandatory);}
n@1102:                     if (this.min != undefined) {node.setAttribute("min", this.min);}
n@1102:                     if (this.max != undefined) {node.setAttribute("max", this.max);}
n@1102:                     break;
djmoffat@1099: 				case "checkbox":
djmoffat@1099: 				case "radio":
djmoffat@1099: 					node.id = this.id;
djmoffat@1099: 					for (var i=0; i<this.options.length; i++)
djmoffat@1099: 					{
djmoffat@1099: 						var option = this.options[i];
djmoffat@1099: 						var optionNode = doc.createElement("option");
djmoffat@1099: 						optionNode.setAttribute("name",option.name);
djmoffat@1099: 						optionNode.textContent = option.text;
djmoffat@1099: 						node.appendChild(optionNode);
djmoffat@1099: 					}
djmoffat@1099: 					break;
djmoffat@1099: 				}
djmoffat@1099: 				return node;
djmoffat@1099: 			};
djmoffat@1099: 		};
djmoffat@1099: 		this.decode = function(parent,xml) {
djmoffat@1099: 			this.location = xml.getAttribute('location');
djmoffat@1099: 			if (this.location == 'before'){this.location = 'pre';}
djmoffat@1099: 			else if (this.location == 'after'){this.location = 'post';}
djmoffat@1099: 			for (var i in xml.children)
djmoffat@1099: 			{
djmoffat@1099: 				if(isNaN(Number(i))==true){break;}
djmoffat@1099: 				var node = new this.OptionNode();
djmoffat@1099: 				node.decode(parent,xml.children[i]);
djmoffat@1099: 				this.options.push(node);
djmoffat@1099: 			}
djmoffat@1099: 		};
djmoffat@1099: 		this.encode = function(doc) {
djmoffat@1099: 			var node = doc.createElement('survey');
djmoffat@1099: 			node.setAttribute('location',this.location);
djmoffat@1099: 			for (var i=0; i<this.options.length; i++)
djmoffat@1099: 			{
djmoffat@1099: 				node.appendChild(this.options[i].exportXML(doc));
djmoffat@1099: 			}
djmoffat@1099: 			return node;
djmoffat@1099: 		};
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.interfaceNode = function()
djmoffat@1099: 	{
djmoffat@1099: 		this.title = null;
djmoffat@1099: 		this.name = null;
djmoffat@1099: 		this.options = [];
djmoffat@1099: 		this.scales = [];
djmoffat@1099: 		this.schema = specification.schema.getAllElementsByName('interface')[1];
djmoffat@1099: 		
djmoffat@1099: 		this.decode = function(parent,xml) {
djmoffat@1099: 			this.name = xml.getAttribute('name');
djmoffat@1099: 			var titleNode = xml.getElementsByTagName('title');
djmoffat@1099: 			if (titleNode.length == 1)
djmoffat@1099: 			{
djmoffat@1099: 				this.title = titleNode[0].textContent;
djmoffat@1099: 			}
djmoffat@1099: 			var interfaceOptionNodes = xml.getElementsByTagName('interfaceoption');
djmoffat@1099: 			// Extract interfaceoption node schema
djmoffat@1099: 			var interfaceOptionNodeSchema = this.schema.getAllElementsByName('interfaceoption')[0];
djmoffat@1099: 			var attributeMap = interfaceOptionNodeSchema.getAllElementsByTagName('xs:attribute');
djmoffat@1099: 			for (var i=0; i<interfaceOptionNodes.length; i++)
djmoffat@1099: 			{
djmoffat@1099: 				var ioNode = interfaceOptionNodes[i];
djmoffat@1099: 				var option = {};
djmoffat@1099: 				for (var j=0; j<attributeMap.length; j++)
djmoffat@1099: 				{
djmoffat@1099: 					var attributeName = attributeMap[j].getAttribute('name') || attributeMap[j].getAttribute('ref');
djmoffat@1099: 					var projectAttr = ioNode.getAttribute(attributeName);
djmoffat@1099: 					projectAttr = parent.processAttribute(projectAttr,attributeMap[j]);
djmoffat@1099: 					switch(typeof projectAttr)
djmoffat@1099: 					{
djmoffat@1099: 					case "number":
djmoffat@1099: 					case "boolean":
djmoffat@1099: 						eval('option.'+attributeName+' = '+projectAttr);
djmoffat@1099: 						break;
djmoffat@1099: 					case "string":
djmoffat@1099: 						eval('option.'+attributeName+' = "'+projectAttr+'"');
djmoffat@1099: 						break;
djmoffat@1099: 					}
djmoffat@1099: 				}
djmoffat@1099: 				this.options.push(option);
djmoffat@1099: 			}
djmoffat@1099: 			
djmoffat@1099: 			// Now the scales nodes
djmoffat@1099: 			var scaleParent = xml.getElementsByTagName('scales');
djmoffat@1099: 			if (scaleParent.length == 1) {
djmoffat@1099: 				scaleParent = scaleParent[0];
djmoffat@1099: 				for (var i=0; i<scaleParent.children.length; i++) {
djmoffat@1099: 					var child = scaleParent.children[i];
djmoffat@1099: 					this.scales.push({
djmoffat@1099: 						text: child.textContent,
djmoffat@1099: 						position: Number(child.getAttribute('position'))
djmoffat@1099: 					});
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 		};
djmoffat@1099: 		
djmoffat@1099: 		this.encode = function(doc) {
djmoffat@1099: 			var node = doc.createElement("interface");
djmoffat@1099:             if (typeof name == "string")
djmoffat@1099:                 node.setAttribute("name",this.name);
djmoffat@1099:             for (var option of this.options)
djmoffat@1099:             {
djmoffat@1099:                 var child = doc.createElement("interfaceoption");
djmoffat@1099:                 child.setAttribute("type",option.type);
djmoffat@1099:                 child.setAttribute("name",option.name);
djmoffat@1099:                 node.appendChild(child);
djmoffat@1099:             }
djmoffat@1099:             if (this.scales.length != 0) {
djmoffat@1099:                 var scales = doc.createElement("scales");
djmoffat@1099:                 for (var scale of this.scales)
djmoffat@1099:                 {
djmoffat@1099:                     var child = doc.createElement("scalelabel");
djmoffat@1099:                     child.setAttribute("position",scale.position);
djmoffat@1099:                     child.textContent = scale.text;
djmoffat@1099:                     scales.appendChild(child);
djmoffat@1099:                 }
djmoffat@1099:                 node.appendChild(scales);
djmoffat@1099:             }
djmoffat@1099:             return node;
djmoffat@1099: 		};
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099:     this.metricNode = function() {
djmoffat@1099:         this.enabled = [];
djmoffat@1099:         this.decode = function(parent, xml) {
djmoffat@1099:             var children = xml.getElementsByTagName('metricenable');
djmoffat@1099:             for (var i in children) { 
djmoffat@1099:                 if (isNaN(Number(i)) == true){break;}
djmoffat@1099:                 this.enabled.push(children[i].textContent);
djmoffat@1099:             }
djmoffat@1099:         }
djmoffat@1099:         this.encode = function(doc) {
djmoffat@1099:             var node = doc.createElement('metric');
djmoffat@1099:             for (var i in this.enabled)
djmoffat@1099:             {
djmoffat@1099:                 if (isNaN(Number(i)) == true){break;}
djmoffat@1099:                 var child = doc.createElement('metricenable');
djmoffat@1099:                 child.textContent = this.enabled[i];
djmoffat@1099:                 node.appendChild(child);
djmoffat@1099:             }
djmoffat@1099:             return node;
djmoffat@1099:         }
djmoffat@1099:     }
djmoffat@1099:     
djmoffat@1099: 	this.page = function() {
djmoffat@1099: 		this.presentedId = undefined;
djmoffat@1099: 		this.id = undefined;
djmoffat@1099: 		this.hostURL = undefined;
djmoffat@1099: 		this.randomiseOrder = undefined;
djmoffat@1099: 		this.loop = undefined;
djmoffat@1099: 		this.showElementComments = undefined;
djmoffat@1099: 		this.outsideReference = null;
djmoffat@1099: 		this.loudness = null;
djmoffat@1099: 		this.preTest = null;
djmoffat@1099: 		this.postTest = null;
djmoffat@1099: 		this.interfaces = [];
djmoffat@1099: 		this.commentBoxPrefix = "Comment on track";
djmoffat@1099: 		this.audioElements = [];
djmoffat@1099: 		this.commentQuestions = [];
djmoffat@1099: 		this.schema = specification.schema.getAllElementsByName("page")[0];
djmoffat@1099: 		
djmoffat@1099: 		this.decode = function(parent,xml)
djmoffat@1099: 		{
djmoffat@1099: 			var attributeMap = this.schema.getAllElementsByTagName('xs:attribute');
djmoffat@1099: 			for (var i=0; i<attributeMap.length; i++)
djmoffat@1099: 			{
djmoffat@1099: 				var attributeName = attributeMap[i].getAttribute('name') || attributeMap[i].getAttribute('ref');
djmoffat@1099: 				var projectAttr = xml.getAttribute(attributeName);
djmoffat@1099: 				projectAttr = parent.processAttribute(projectAttr,attributeMap[i]);
djmoffat@1099: 				switch(typeof projectAttr)
djmoffat@1099: 				{
djmoffat@1099: 				case "number":
djmoffat@1099: 				case "boolean":
djmoffat@1099: 					eval('this.'+attributeName+' = '+projectAttr);
djmoffat@1099: 					break;
djmoffat@1099: 				case "string":
djmoffat@1099: 					eval('this.'+attributeName+' = "'+projectAttr+'"');
djmoffat@1099: 					break;
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 			
djmoffat@1099: 			// Get the Comment Box Prefix
djmoffat@1099: 			var CBP = xml.getElementsByTagName('commentboxprefix');
djmoffat@1099: 			if (CBP.length != 0) {
djmoffat@1099: 				this.commentBoxPrefix = CBP[0].textContent;
djmoffat@1099: 			}
djmoffat@1099: 			
djmoffat@1099: 			// Now decode the interfaces
djmoffat@1099: 			var interfaceNode = xml.getElementsByTagName('interface');
djmoffat@1099: 			for (var i=0; i<interfaceNode.length; i++)
djmoffat@1099: 			{
djmoffat@1099: 				var node = new parent.interfaceNode();
djmoffat@1099: 				node.decode(this,interfaceNode[i],parent.schema.getAllElementsByName('interface')[1]);
djmoffat@1099: 				this.interfaces.push(node);
djmoffat@1099: 			}
djmoffat@1099: 			
djmoffat@1099: 			// Now process the survey node options
djmoffat@1099: 			var survey = xml.getElementsByTagName('survey');
djmoffat@1099: 			var surveySchema = parent.schema.getAllElementsByName('survey')[0];
djmoffat@1099: 			for (var i in survey) {
djmoffat@1099: 				if (isNaN(Number(i)) == true){break;}
djmoffat@1099: 				var location = survey[i].getAttribute('location');
djmoffat@1099: 				if (location == 'pre' || location == 'before')
djmoffat@1099: 				{
djmoffat@1099: 					if (this.preTest != null){this.errors.push("Already a pre/before test survey defined! Ignoring second!!");}
djmoffat@1099: 					else {
djmoffat@1099: 						this.preTest = new parent.surveyNode();
djmoffat@1099: 						this.preTest.decode(parent,survey[i],surveySchema);
djmoffat@1099: 					}
djmoffat@1099: 				} else if (location == 'post' || location == 'after') {
djmoffat@1099: 					if (this.postTest != null){this.errors.push("Already a post/after test survey defined! Ignoring second!!");}
djmoffat@1099: 					else {
djmoffat@1099: 						this.postTest = new parent.surveyNode();
djmoffat@1099: 						this.postTest.decode(parent,survey[i],surveySchema);
djmoffat@1099: 					}
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 			
djmoffat@1099: 			// Now process the audioelement tags
djmoffat@1099: 			var audioElements = xml.getElementsByTagName('audioelement');
djmoffat@1099: 			for (var i=0; i<audioElements.length; i++)
djmoffat@1099: 			{
djmoffat@1099: 				var node = new this.audioElementNode();
djmoffat@1099: 				node.decode(this,audioElements[i]);
djmoffat@1099: 				this.audioElements.push(node);
djmoffat@1099: 			}
djmoffat@1099: 			
djmoffat@1099: 			// Now decode the commentquestions
djmoffat@1099: 			var commentQuestions = xml.getElementsByTagName('commentquestion');
djmoffat@1099: 			for (var i=0; i<commentQuestions.length; i++)
djmoffat@1099: 			{
djmoffat@1099: 				var node = new this.commentQuestionNode();
djmoffat@1099: 				node.decode(parent,commentQuestions[i]);
djmoffat@1099: 				this.commentQuestions.push(node);
djmoffat@1099: 			}
djmoffat@1099: 		};
djmoffat@1099: 		
djmoffat@1099: 		this.encode = function(root)
djmoffat@1099: 		{
djmoffat@1099: 			var AHNode = root.createElement("page");
djmoffat@1099:             // First decode the attributes
djmoffat@1099:             var attributes = this.schema.getAllElementsByTagName('xs:attribute');
djmoffat@1099:             for (var i=0; i<attributes.length; i++)
djmoffat@1099:             {
djmoffat@1099:                 var name = attributes[i].getAttribute("name");
djmoffat@1099:                 if (name == undefined) {
djmoffat@1099:                     name = attributes[i].getAttribute("ref");
djmoffat@1099:                 }
djmoffat@1099:                 if(eval("this."+name+" != undefined") || attributes[i].getAttribute("use") == "required")
djmoffat@1099:                 {
djmoffat@1099:                     eval("AHNode.setAttribute('"+name+"',this."+name+")");
djmoffat@1099:                 }
djmoffat@1099:             }
djmoffat@1099: 			if(this.loudness != null) {AHNode.setAttribute("loudness",this.loudness);}
djmoffat@1099:             // <commentboxprefix>
djmoffat@1099:             var commentboxprefix = root.createElement("commentboxprefix");
djmoffat@1099:             commentboxprefix.textContent = this.commentBoxPrefix;
djmoffat@1099:             AHNode.appendChild(commentboxprefix);
djmoffat@1099:             
djmoffat@1099: 			for (var i=0; i<this.interfaces.length; i++)
djmoffat@1099: 			{
djmoffat@1099: 				AHNode.appendChild(this.interfaces[i].encode(root));
djmoffat@1099: 			}
djmoffat@1099: 			
djmoffat@1099: 			for (var i=0; i<this.audioElements.length; i++) {
djmoffat@1099: 				AHNode.appendChild(this.audioElements[i].encode(root));
djmoffat@1099: 			}
djmoffat@1099: 			// Create <CommentQuestion>
djmoffat@1099: 			for (var i=0; i<this.commentQuestions.length; i++)
djmoffat@1099: 			{
djmoffat@1099: 				AHNode.appendChild(this.commentQuestions[i].encode(root));
djmoffat@1099: 			}
djmoffat@1099: 			
djmoffat@1099: 			AHNode.appendChild(this.preTest.encode(root));
djmoffat@1099:             AHNode.appendChild(this.postTest.encode(root));
djmoffat@1099: 			return AHNode;
djmoffat@1099: 		};
djmoffat@1099: 		
djmoffat@1099: 		this.commentQuestionNode = function() {
djmoffat@1099: 			this.id = null;
djmoffat@1099: 			this.type = undefined;
djmoffat@1099: 			this.options = [];
djmoffat@1099: 			this.statement = undefined;
djmoffat@1099: 			this.schema = specification.schema.getAllElementsByName('commentquestion')[0];
djmoffat@1099: 			this.decode = function(parent,xml)
djmoffat@1099: 			{
djmoffat@1099: 				this.id = xml.id;
djmoffat@1099: 				this.type = xml.getAttribute('type');
djmoffat@1099: 				this.statement = xml.getElementsByTagName('statement')[0].textContent;
djmoffat@1099: 				var optNodes = xml.getElementsByTagName('option');
djmoffat@1099: 				for (var i=0; i<optNodes.length; i++)
djmoffat@1099: 				{
djmoffat@1099: 					var optNode = optNodes[i];
djmoffat@1099: 					this.options.push({
djmoffat@1099: 						name: optNode.getAttribute('name'),
djmoffat@1099: 						text: optNode.textContent
djmoffat@1099: 					});
djmoffat@1099: 				}
djmoffat@1099: 			};
djmoffat@1099: 			
djmoffat@1099: 			this.encode = function(root)
djmoffat@1099: 			{
djmoffat@1099: 				var node = root.createElement("commentquestion");
djmoffat@1099:                 node.id = this.id;
djmoffat@1099:                 node.setAttribute("type",this.type);
djmoffat@1099:                 var statement = root.createElement("statement");
djmoffat@1099:                 statement.textContent = this.statement;
djmoffat@1099:                 node.appendChild(statement);
djmoffat@1099:                 for (var option of this.options)
djmoffat@1099:                 {
djmoffat@1099:                     var child = root.createElement("option");
djmoffat@1099:                     child.setAttribute("name",option.name);
djmoffat@1099:                     child.textContent = option.text;
djmoffat@1099:                     node.appendChild(child);
djmoffat@1099:                 }
djmoffat@1099:                 return node;
djmoffat@1099: 			};
djmoffat@1099: 		};
djmoffat@1099: 		
djmoffat@1099: 		this.audioElementNode = function() {
djmoffat@1099: 			this.url = null;
djmoffat@1099: 			this.id = null;
djmoffat@1099: 			this.parent = null;
djmoffat@1099: 			this.type = null;
n@1102: 			this.marker = null;
djmoffat@1099: 			this.enforce = false;
n@1102: 			this.gain = 0.0;
djmoffat@1099: 			this.schema = specification.schema.getAllElementsByName('audioelement')[0];;
djmoffat@1099: 			this.parent = null;
djmoffat@1099: 			this.decode = function(parent,xml)
djmoffat@1099: 			{
djmoffat@1099: 				this.parent = parent;
djmoffat@1099: 				var attributeMap = this.schema.getAllElementsByTagName('xs:attribute');
djmoffat@1099: 				for (var i=0; i<attributeMap.length; i++)
djmoffat@1099: 				{
djmoffat@1099: 					var attributeName = attributeMap[i].getAttribute('name') || attributeMap[i].getAttribute('ref');
djmoffat@1099: 					var projectAttr = xml.getAttribute(attributeName);
djmoffat@1099: 					projectAttr = specification.processAttribute(projectAttr,attributeMap[i]);
djmoffat@1099: 					switch(typeof projectAttr)
djmoffat@1099: 					{
djmoffat@1099: 					case "number":
djmoffat@1099: 					case "boolean":
djmoffat@1099: 						eval('this.'+attributeName+' = '+projectAttr);
djmoffat@1099: 						break;
djmoffat@1099: 					case "string":
djmoffat@1099: 						eval('this.'+attributeName+' = "'+projectAttr+'"');
djmoffat@1099: 						break;
djmoffat@1099: 					}
djmoffat@1099: 				}
djmoffat@1099: 				
djmoffat@1099: 			};
djmoffat@1099: 			this.encode = function(root)
djmoffat@1099: 			{
djmoffat@1099: 				var AENode = root.createElement("audioelement");
djmoffat@1099: 				var attributes = this.schema.getAllElementsByTagName('xs:attribute');
djmoffat@1099:                 for (var i=0; i<attributes.length; i++)
djmoffat@1099:                 {
djmoffat@1099:                     var name = attributes[i].getAttribute("name");
djmoffat@1099:                     if (name == undefined) {
djmoffat@1099:                         name = attributes[i].getAttribute("ref");
djmoffat@1099:                     }
djmoffat@1099:                     if(eval("this."+name+" != undefined") || attributes[i].getAttribute("use") == "required")
djmoffat@1099:                     {
djmoffat@1099:                         eval("AENode.setAttribute('"+name+"',this."+name+")");
djmoffat@1099:                     }
djmoffat@1099:                 }
djmoffat@1099: 				return AENode;
djmoffat@1099: 			};
djmoffat@1099: 		};
djmoffat@1099: 	};
djmoffat@1099: }
djmoffat@1099: 			
djmoffat@1099: function Interface(specificationObject) {
djmoffat@1099: 	// This handles the bindings between the interface and the audioEngineContext;
djmoffat@1099: 	this.specification = specificationObject;
djmoffat@1099: 	this.insertPoint = document.getElementById("topLevelBody");
djmoffat@1099: 	
djmoffat@1099: 	this.newPage = function(audioHolderObject,store)
djmoffat@1099: 	{
djmoffat@1099: 		audioEngineContext.newTestPage(audioHolderObject,store);
n@1102: 		interfaceContext.commentBoxes.deleteCommentBoxes();
djmoffat@1099: 		interfaceContext.deleteCommentQuestions();
djmoffat@1099: 		loadTest(audioHolderObject,store);
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	// Bounded by interface!!
djmoffat@1099: 	// Interface object MUST have an exportXMLDOM method which returns the various DOM levels
djmoffat@1099: 	// For example, APE returns  the slider position normalised in a <value> tag.
djmoffat@1099: 	this.interfaceObjects = [];
djmoffat@1099: 	this.interfaceObject = function(){};
djmoffat@1099: 	
djmoffat@1099: 	this.resizeWindow = function(event)
djmoffat@1099: 	{
djmoffat@1099: 		popup.resize(event);
djmoffat@1099: 		for(var i=0; i<this.commentBoxes.length; i++)
djmoffat@1099: 		{this.commentBoxes[i].resize();}
djmoffat@1099: 		for(var i=0; i<this.commentQuestions.length; i++)
djmoffat@1099: 		{this.commentQuestions[i].resize();}
djmoffat@1099: 		try
djmoffat@1099: 		{
djmoffat@1099: 			resizeWindow(event);
djmoffat@1099: 		}
djmoffat@1099: 		catch(err)
djmoffat@1099: 		{
djmoffat@1099: 			console.log("Warning - Interface does not have Resize option");
djmoffat@1099: 			console.log(err);
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.returnNavigator = function()
djmoffat@1099: 	{
djmoffat@1099: 		var node = storage.document.createElement("navigator");
djmoffat@1099: 		var platform = storage.document.createElement("platform");
djmoffat@1099: 		platform.textContent = navigator.platform;
djmoffat@1099: 		var vendor = storage.document.createElement("vendor");
djmoffat@1099: 		vendor.textContent = navigator.vendor;
djmoffat@1099: 		var userAgent = storage.document.createElement("uagent");
djmoffat@1099: 		userAgent.textContent = navigator.userAgent;
djmoffat@1099:         var screen = storage.document.createElement("window");
djmoffat@1099:         screen.setAttribute('innerWidth',window.innerWidth);
djmoffat@1099:         screen.setAttribute('innerHeight',window.innerHeight);
djmoffat@1099: 		node.appendChild(platform);
djmoffat@1099: 		node.appendChild(vendor);
djmoffat@1099: 		node.appendChild(userAgent);
djmoffat@1099:         node.appendChild(screen);
djmoffat@1099: 		return node;
djmoffat@1099: 	};
djmoffat@1099: 	
n@1102: 	this.commentBoxes = new function() {
n@1102:         this.boxes = [];
n@1102:         this.injectPoint = null;
n@1102:         this.elementCommentBox = function(audioObject) {
n@1102:             var element = audioObject.specification;
n@1102:             this.audioObject = audioObject;
n@1102:             this.id = audioObject.id;
n@1102:             var audioHolderObject = audioObject.specification.parent;
n@1102:             // Create document objects to hold the comment boxes
n@1102:             this.trackComment = document.createElement('div');
n@1102:             this.trackComment.className = 'comment-div';
n@1102:             this.trackComment.id = 'comment-div-'+audioObject.id;
n@1102:             // Create a string next to each comment asking for a comment
n@1102:             this.trackString = document.createElement('span');
n@1102:             this.trackString.innerHTML = audioHolderObject.commentBoxPrefix+' '+audioObject.interfaceDOM.getPresentedId();
n@1102:             // Create the HTML5 comment box 'textarea'
n@1102:             this.trackCommentBox = document.createElement('textarea');
n@1102:             this.trackCommentBox.rows = '4';
n@1102:             this.trackCommentBox.cols = '100';
n@1102:             this.trackCommentBox.name = 'trackComment'+audioObject.id;
n@1102:             this.trackCommentBox.className = 'trackComment';
n@1102:             var br = document.createElement('br');
n@1102:             // Add to the holder.
n@1102:             this.trackComment.appendChild(this.trackString);
n@1102:             this.trackComment.appendChild(br);
n@1102:             this.trackComment.appendChild(this.trackCommentBox);
n@1102: 
n@1102:             this.exportXMLDOM = function() {
n@1102:                 var root = document.createElement('comment');
n@1102:                 var question = document.createElement('question');
n@1102:                 question.textContent = this.trackString.textContent;
n@1102:                 var response = document.createElement('response');
n@1102:                 response.textContent = this.trackCommentBox.value;
n@1102:                 console.log("Comment frag-"+this.id+": "+response.textContent);
n@1102:                 root.appendChild(question);
n@1102:                 root.appendChild(response);
n@1102:                 return root;
n@1102:             };
n@1102:             this.resize = function()
n@1102:             {
n@1102:                 var boxwidth = (window.innerWidth-100)/2;
n@1102:                 if (boxwidth >= 600)
n@1102:                 {
n@1102:                     boxwidth = 600;
n@1102:                 }
n@1102:                 else if (boxwidth < 400)
n@1102:                 {
n@1102:                     boxwidth = 400;
n@1102:                 }
n@1102:                 this.trackComment.style.width = boxwidth+"px";
n@1102:                 this.trackCommentBox.style.width = boxwidth-6+"px";
n@1102:             };
n@1102:             this.resize();
n@1102:         };
n@1102:         this.createCommentBox = function(audioObject) {
n@1102:             var node = new this.elementCommentBox(audioObject);
n@1102:             this.boxes.push(node);
n@1102:             audioObject.commentDOM = node;
n@1102:             return node;
n@1102:         };
n@1102:         this.sortCommentBoxes = function() {
n@1102:             this.boxes.sort(function(a,b){return a.id - b.id;});
n@1102:         };
n@1102: 
n@1102:         this.showCommentBoxes = function(inject, sort) {
n@1102:             this.injectPoint = inject;
n@1102:             if (sort) {this.sortCommentBoxes();}
n@1102:             for (var box of this.boxes) {
n@1102:                 inject.appendChild(box.trackComment);
n@1102:             }
n@1102:         };
n@1102: 
n@1102:         this.deleteCommentBoxes = function() {
n@1102:             if (this.injectPoint != null) {
n@1102:                 for (var box of this.boxes) {
n@1102:                     this.injectPoint.removeChild(box.trackComment);
n@1102:                 }
n@1102:                 this.injectPoint = null;
n@1102:             }
n@1102:             this.boxes = [];
n@1102:         };
n@1102:     }
djmoffat@1099: 	
djmoffat@1099: 	this.commentQuestions = [];
djmoffat@1099: 	
djmoffat@1099: 	this.commentBox = function(commentQuestion) {
djmoffat@1099: 		this.specification = commentQuestion;
djmoffat@1099: 		// Create document objects to hold the comment boxes
djmoffat@1099: 		this.holder = document.createElement('div');
djmoffat@1099: 		this.holder.className = 'comment-div';
djmoffat@1099: 		// Create a string next to each comment asking for a comment
djmoffat@1099: 		this.string = document.createElement('span');
djmoffat@1099: 		this.string.innerHTML = commentQuestion.statement;
djmoffat@1099: 		// Create the HTML5 comment box 'textarea'
djmoffat@1099: 		this.textArea = document.createElement('textarea');
djmoffat@1099: 		this.textArea.rows = '4';
djmoffat@1099: 		this.textArea.cols = '100';
djmoffat@1099: 		this.textArea.className = 'trackComment';
djmoffat@1099: 		var br = document.createElement('br');
djmoffat@1099: 		// Add to the holder.
djmoffat@1099: 		this.holder.appendChild(this.string);
djmoffat@1099: 		this.holder.appendChild(br);
djmoffat@1099: 		this.holder.appendChild(this.textArea);
djmoffat@1099: 		
djmoffat@1099: 		this.exportXMLDOM = function(storePoint) {
djmoffat@1099: 			var root = storePoint.parent.document.createElement('comment');
djmoffat@1099: 			root.id = this.specification.id;
djmoffat@1099: 			root.setAttribute('type',this.specification.type);
djmoffat@1099: 			console.log("Question: "+this.string.textContent);
djmoffat@1099: 			console.log("Response: "+root.textContent);
djmoffat@1099:             var question = storePoint.parent.document.createElement('question');
djmoffat@1099:             question.textContent = this.string.textContent;
djmoffat@1099:             var response = storePoint.parent.document.createElement('response');
djmoffat@1099:             response.textContent = this.textArea.value;
djmoffat@1099:             root.appendChild(question);
djmoffat@1099:             root.appendChild(response);
djmoffat@1099:             storePoint.XMLDOM.appendChild(root);
djmoffat@1099: 			return root;
djmoffat@1099: 		};
djmoffat@1099: 		this.resize = function()
djmoffat@1099: 		{
djmoffat@1099: 			var boxwidth = (window.innerWidth-100)/2;
djmoffat@1099: 			if (boxwidth >= 600)
djmoffat@1099: 			{
djmoffat@1099: 				boxwidth = 600;
djmoffat@1099: 			}
djmoffat@1099: 			else if (boxwidth < 400)
djmoffat@1099: 			{
djmoffat@1099: 				boxwidth = 400;
djmoffat@1099: 			}
djmoffat@1099: 			this.holder.style.width = boxwidth+"px";
djmoffat@1099: 			this.textArea.style.width = boxwidth-6+"px";
djmoffat@1099: 		};
djmoffat@1099: 		this.resize();
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.radioBox = function(commentQuestion) {
djmoffat@1099: 		this.specification = commentQuestion;
djmoffat@1099: 		// Create document objects to hold the comment boxes
djmoffat@1099: 		this.holder = document.createElement('div');
djmoffat@1099: 		this.holder.className = 'comment-div';
djmoffat@1099: 		// Create a string next to each comment asking for a comment
djmoffat@1099: 		this.string = document.createElement('span');
djmoffat@1099: 		this.string.innerHTML = commentQuestion.statement;
djmoffat@1099: 		var br = document.createElement('br');
djmoffat@1099: 		// Add to the holder.
djmoffat@1099: 		this.holder.appendChild(this.string);
djmoffat@1099: 		this.holder.appendChild(br);
djmoffat@1099: 		this.options = [];
djmoffat@1099: 		this.inputs = document.createElement('div');
djmoffat@1099: 		this.span = document.createElement('div');
djmoffat@1099: 		this.inputs.align = 'center';
djmoffat@1099: 		this.inputs.style.marginLeft = '12px';
djmoffat@1099: 		this.span.style.marginLeft = '12px';
djmoffat@1099: 		this.span.align = 'center';
djmoffat@1099: 		this.span.style.marginTop = '15px';
djmoffat@1099: 		
djmoffat@1099: 		var optCount = commentQuestion.options.length;
djmoffat@1099: 		for (var optNode of commentQuestion.options)
djmoffat@1099: 		{
djmoffat@1099: 			var div = document.createElement('div');
djmoffat@1099: 			div.style.width = '80px';
djmoffat@1099: 			div.style.float = 'left';
djmoffat@1099: 			var input = document.createElement('input');
djmoffat@1099: 			input.type = 'radio';
djmoffat@1099: 			input.name = commentQuestion.id;
djmoffat@1099: 			input.setAttribute('setvalue',optNode.name);
djmoffat@1099: 			input.className = 'comment-radio';
djmoffat@1099: 			div.appendChild(input);
djmoffat@1099: 			this.inputs.appendChild(div);
djmoffat@1099: 			
djmoffat@1099: 			
djmoffat@1099: 			div = document.createElement('div');
djmoffat@1099: 			div.style.width = '80px';
djmoffat@1099: 			div.style.float = 'left';
djmoffat@1099: 			div.align = 'center';
djmoffat@1099: 			var span = document.createElement('span');
djmoffat@1099: 			span.textContent = optNode.text;
djmoffat@1099: 			span.className = 'comment-radio-span';
djmoffat@1099: 			div.appendChild(span);
djmoffat@1099: 			this.span.appendChild(div);
djmoffat@1099: 			this.options.push(input);
djmoffat@1099: 		}
djmoffat@1099: 		this.holder.appendChild(this.span);
djmoffat@1099: 		this.holder.appendChild(this.inputs);
djmoffat@1099: 		
djmoffat@1099: 		this.exportXMLDOM = function(storePoint) {
djmoffat@1099: 			var root = storePoint.parent.document.createElement('comment');
djmoffat@1099: 			root.id = this.specification.id;
djmoffat@1099: 			root.setAttribute('type',this.specification.type);
djmoffat@1099: 			var question = document.createElement('question');
djmoffat@1099: 			question.textContent = this.string.textContent;
djmoffat@1099: 			var response = document.createElement('response');
djmoffat@1099: 			var i=0;
djmoffat@1099: 			while(this.options[i].checked == false) {
djmoffat@1099: 				i++;
djmoffat@1099: 				if (i >= this.options.length) {
djmoffat@1099: 					break;
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 			if (i >= this.options.length) {
djmoffat@1099: 				response.textContent = 'null';
djmoffat@1099: 			} else {
djmoffat@1099: 				response.textContent = this.options[i].getAttribute('setvalue');
djmoffat@1099: 				response.setAttribute('number',i);
djmoffat@1099: 			}
djmoffat@1099: 			console.log('Comment: '+question.textContent);
djmoffat@1099: 			console.log('Response: '+response.textContent);
djmoffat@1099: 			root.appendChild(question);
djmoffat@1099: 			root.appendChild(response);
djmoffat@1099:             storePoint.XMLDOM.appendChild(root);
djmoffat@1099: 			return root;
djmoffat@1099: 		};
djmoffat@1099: 		this.resize = function()
djmoffat@1099: 		{
djmoffat@1099: 			var boxwidth = (window.innerWidth-100)/2;
djmoffat@1099: 			if (boxwidth >= 600)
djmoffat@1099: 			{
djmoffat@1099: 				boxwidth = 600;
djmoffat@1099: 			}
djmoffat@1099: 			else if (boxwidth < 400)
djmoffat@1099: 			{
djmoffat@1099: 				boxwidth = 400;
djmoffat@1099: 			}
djmoffat@1099: 			this.holder.style.width = boxwidth+"px";
djmoffat@1099: 			var text = this.holder.children[2];
djmoffat@1099: 			var options = this.holder.children[3];
djmoffat@1099: 			var optCount = options.children.length;
djmoffat@1099: 			var spanMargin = Math.floor(((boxwidth-20-(optCount*80))/(optCount))/2)+'px';
djmoffat@1099: 			var options = options.firstChild;
djmoffat@1099: 			var text = text.firstChild;
djmoffat@1099: 			options.style.marginRight = spanMargin;
djmoffat@1099: 			options.style.marginLeft = spanMargin;
djmoffat@1099: 			text.style.marginRight = spanMargin;
djmoffat@1099: 			text.style.marginLeft = spanMargin;
djmoffat@1099: 			while(options.nextSibling != undefined)
djmoffat@1099: 			{
djmoffat@1099: 				options = options.nextSibling;
djmoffat@1099: 				text = text.nextSibling;
djmoffat@1099: 				options.style.marginRight = spanMargin;
djmoffat@1099: 				options.style.marginLeft = spanMargin;
djmoffat@1099: 				text.style.marginRight = spanMargin;
djmoffat@1099: 				text.style.marginLeft = spanMargin;
djmoffat@1099: 			}
djmoffat@1099: 		};
djmoffat@1099: 		this.resize();
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.checkboxBox = function(commentQuestion) {
djmoffat@1099: 		this.specification = commentQuestion;
djmoffat@1099: 		// Create document objects to hold the comment boxes
djmoffat@1099: 		this.holder = document.createElement('div');
djmoffat@1099: 		this.holder.className = 'comment-div';
djmoffat@1099: 		// Create a string next to each comment asking for a comment
djmoffat@1099: 		this.string = document.createElement('span');
djmoffat@1099: 		this.string.innerHTML = commentQuestion.statement;
djmoffat@1099: 		var br = document.createElement('br');
djmoffat@1099: 		// Add to the holder.
djmoffat@1099: 		this.holder.appendChild(this.string);
djmoffat@1099: 		this.holder.appendChild(br);
djmoffat@1099: 		this.options = [];
djmoffat@1099: 		this.inputs = document.createElement('div');
djmoffat@1099: 		this.span = document.createElement('div');
djmoffat@1099: 		this.inputs.align = 'center';
djmoffat@1099: 		this.inputs.style.marginLeft = '12px';
djmoffat@1099: 		this.span.style.marginLeft = '12px';
djmoffat@1099: 		this.span.align = 'center';
djmoffat@1099: 		this.span.style.marginTop = '15px';
djmoffat@1099: 		
djmoffat@1099: 		var optCount = commentQuestion.options.length;
djmoffat@1099: 		for (var i=0; i<optCount; i++)
djmoffat@1099: 		{
djmoffat@1099: 			var div = document.createElement('div');
djmoffat@1099: 			div.style.width = '80px';
djmoffat@1099: 			div.style.float = 'left';
djmoffat@1099: 			var input = document.createElement('input');
djmoffat@1099: 			input.type = 'checkbox';
djmoffat@1099: 			input.name = commentQuestion.id;
djmoffat@1099: 			input.setAttribute('setvalue',commentQuestion.options[i].name);
djmoffat@1099: 			input.className = 'comment-radio';
djmoffat@1099: 			div.appendChild(input);
djmoffat@1099: 			this.inputs.appendChild(div);
djmoffat@1099: 			
djmoffat@1099: 			
djmoffat@1099: 			div = document.createElement('div');
djmoffat@1099: 			div.style.width = '80px';
djmoffat@1099: 			div.style.float = 'left';
djmoffat@1099: 			div.align = 'center';
djmoffat@1099: 			var span = document.createElement('span');
djmoffat@1099: 			span.textContent = commentQuestion.options[i].text;
djmoffat@1099: 			span.className = 'comment-radio-span';
djmoffat@1099: 			div.appendChild(span);
djmoffat@1099: 			this.span.appendChild(div);
djmoffat@1099: 			this.options.push(input);
djmoffat@1099: 		}
djmoffat@1099: 		this.holder.appendChild(this.span);
djmoffat@1099: 		this.holder.appendChild(this.inputs);
djmoffat@1099: 		
djmoffat@1099: 		this.exportXMLDOM = function(storePoint) {
djmoffat@1099: 			var root = storePoint.parent.document.createElement('comment');
djmoffat@1099: 			root.id = this.specification.id;
djmoffat@1099: 			root.setAttribute('type',this.specification.type);
djmoffat@1099: 			var question = document.createElement('question');
djmoffat@1099: 			question.textContent = this.string.textContent;
djmoffat@1099: 			root.appendChild(question);
djmoffat@1099: 			console.log('Comment: '+question.textContent);
djmoffat@1099: 			for (var i=0; i<this.options.length; i++) {
djmoffat@1099: 				var response = document.createElement('response');
djmoffat@1099: 				response.textContent = this.options[i].checked;
djmoffat@1099: 				response.setAttribute('name',this.options[i].getAttribute('setvalue'));
djmoffat@1099: 				root.appendChild(response);
djmoffat@1099: 				console.log('Response '+response.getAttribute('name') +': '+response.textContent);
djmoffat@1099: 			}
djmoffat@1099:             storePoint.XMLDOM.appendChild(root);
djmoffat@1099: 			return root;
djmoffat@1099: 		};
djmoffat@1099: 		this.resize = function()
djmoffat@1099: 		{
djmoffat@1099: 			var boxwidth = (window.innerWidth-100)/2;
djmoffat@1099: 			if (boxwidth >= 600)
djmoffat@1099: 			{
djmoffat@1099: 				boxwidth = 600;
djmoffat@1099: 			}
djmoffat@1099: 			else if (boxwidth < 400)
djmoffat@1099: 			{
djmoffat@1099: 				boxwidth = 400;
djmoffat@1099: 			}
djmoffat@1099: 			this.holder.style.width = boxwidth+"px";
djmoffat@1099: 			var text = this.holder.children[2];
djmoffat@1099: 			var options = this.holder.children[3];
djmoffat@1099: 			var optCount = options.children.length;
djmoffat@1099: 			var spanMargin = Math.floor(((boxwidth-20-(optCount*80))/(optCount))/2)+'px';
djmoffat@1099: 			var options = options.firstChild;
djmoffat@1099: 			var text = text.firstChild;
djmoffat@1099: 			options.style.marginRight = spanMargin;
djmoffat@1099: 			options.style.marginLeft = spanMargin;
djmoffat@1099: 			text.style.marginRight = spanMargin;
djmoffat@1099: 			text.style.marginLeft = spanMargin;
djmoffat@1099: 			while(options.nextSibling != undefined)
djmoffat@1099: 			{
djmoffat@1099: 				options = options.nextSibling;
djmoffat@1099: 				text = text.nextSibling;
djmoffat@1099: 				options.style.marginRight = spanMargin;
djmoffat@1099: 				options.style.marginLeft = spanMargin;
djmoffat@1099: 				text.style.marginRight = spanMargin;
djmoffat@1099: 				text.style.marginLeft = spanMargin;
djmoffat@1099: 			}
djmoffat@1099: 		};
djmoffat@1099: 		this.resize();
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.createCommentQuestion = function(element) {
djmoffat@1099: 		var node;
djmoffat@1099: 		if (element.type == 'question') {
djmoffat@1099: 			node = new this.commentBox(element);
djmoffat@1099: 		} else if (element.type == 'radio') {
djmoffat@1099: 			node = new this.radioBox(element);
djmoffat@1099: 		} else if (element.type == 'checkbox') {
djmoffat@1099: 			node = new this.checkboxBox(element);
djmoffat@1099: 		}
djmoffat@1099: 		this.commentQuestions.push(node);
djmoffat@1099: 		return node;
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.deleteCommentQuestions = function()
djmoffat@1099: 	{
djmoffat@1099: 		this.commentQuestions = [];
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.playhead = new function()
djmoffat@1099: 	{
djmoffat@1099: 		this.object = document.createElement('div');
djmoffat@1099: 		this.object.className = 'playhead';
djmoffat@1099: 		this.object.align = 'left';
djmoffat@1099: 		var curTime = document.createElement('div');
djmoffat@1099: 		curTime.style.width = '50px';
djmoffat@1099: 		this.curTimeSpan = document.createElement('span');
djmoffat@1099: 		this.curTimeSpan.textContent = '00:00';
djmoffat@1099: 		curTime.appendChild(this.curTimeSpan);
djmoffat@1099: 		this.object.appendChild(curTime);
djmoffat@1099: 		this.scrubberTrack = document.createElement('div');
djmoffat@1099: 		this.scrubberTrack.className = 'playhead-scrub-track';
djmoffat@1099: 		
djmoffat@1099: 		this.scrubberHead = document.createElement('div');
djmoffat@1099: 		this.scrubberHead.id = 'playhead-scrubber';
djmoffat@1099: 		this.scrubberTrack.appendChild(this.scrubberHead);
djmoffat@1099: 		this.object.appendChild(this.scrubberTrack);
djmoffat@1099: 		
djmoffat@1099: 		this.timePerPixel = 0;
djmoffat@1099: 		this.maxTime = 0;
djmoffat@1099: 		
djmoffat@1099: 		this.playbackObject;
djmoffat@1099: 		
djmoffat@1099: 		this.setTimePerPixel = function(audioObject) {
djmoffat@1099: 			//maxTime must be in seconds
djmoffat@1099: 			this.playbackObject = audioObject;
djmoffat@1099: 			this.maxTime = audioObject.buffer.buffer.duration;
djmoffat@1099: 			var width = 490; //500 - 10, 5 each side of the tracker head
djmoffat@1099: 			this.timePerPixel = this.maxTime/490;
djmoffat@1099: 			if (this.maxTime < 60) {
djmoffat@1099: 				this.curTimeSpan.textContent = '0.00';
djmoffat@1099: 			} else {
djmoffat@1099: 				this.curTimeSpan.textContent = '00:00';
djmoffat@1099: 			}
djmoffat@1099: 		};
djmoffat@1099: 		
djmoffat@1099: 		this.update = function() {
djmoffat@1099: 			// Update the playhead position, startPlay must be called
djmoffat@1099: 			if (this.timePerPixel > 0) {
djmoffat@1099: 				var time = this.playbackObject.getCurrentPosition();
djmoffat@1099: 				if (time > 0 && time < this.maxTime) {
djmoffat@1099: 					var width = 490;
djmoffat@1099: 					var pix = Math.floor(time/this.timePerPixel);
djmoffat@1099: 					this.scrubberHead.style.left = pix+'px';
djmoffat@1099: 					if (this.maxTime > 60.0) {
djmoffat@1099: 						var secs = time%60;
djmoffat@1099: 						var mins = Math.floor((time-secs)/60);
djmoffat@1099: 						secs = secs.toString();
djmoffat@1099: 						secs = secs.substr(0,2);
djmoffat@1099: 						mins = mins.toString();
djmoffat@1099: 						this.curTimeSpan.textContent = mins+':'+secs;
djmoffat@1099: 					} else {
djmoffat@1099: 						time = time.toString();
djmoffat@1099: 						this.curTimeSpan.textContent = time.substr(0,4);
djmoffat@1099: 					}
djmoffat@1099: 				} else {
djmoffat@1099: 					this.scrubberHead.style.left = '0px';
djmoffat@1099: 					if (this.maxTime < 60) {
djmoffat@1099: 						this.curTimeSpan.textContent = '0.00';
djmoffat@1099: 					} else {
djmoffat@1099: 						this.curTimeSpan.textContent = '00:00';
djmoffat@1099: 					}
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 		};
djmoffat@1099: 		
djmoffat@1099: 		this.interval = undefined;
djmoffat@1099: 		
djmoffat@1099: 		this.start = function() {
djmoffat@1099: 			if (this.playbackObject != undefined && this.interval == undefined) {
djmoffat@1099: 				if (this.maxTime < 60) {
djmoffat@1099: 					this.interval = setInterval(function(){interfaceContext.playhead.update();},10);
djmoffat@1099: 				} else {
djmoffat@1099: 					this.interval = setInterval(function(){interfaceContext.playhead.update();},100);
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 		};
djmoffat@1099: 		this.stop = function() {
djmoffat@1099: 			clearInterval(this.interval);
djmoffat@1099: 			this.interval = undefined;
djmoffat@1099:             this.scrubberHead.style.left = '0px';
djmoffat@1099: 			if (this.maxTime < 60) {
djmoffat@1099: 				this.curTimeSpan.textContent = '0.00';
djmoffat@1099: 			} else {
djmoffat@1099: 				this.curTimeSpan.textContent = '00:00';
djmoffat@1099: 			}
djmoffat@1099: 		};
djmoffat@1099: 	};
djmoffat@1099:     
djmoffat@1099:     this.volume = new function()
djmoffat@1099:     {
djmoffat@1099:         // An in-built volume module which can be viewed on page
djmoffat@1099:         // Includes trackers on page-by-page data
djmoffat@1099:         // Volume does NOT reset to 0dB on each page load
djmoffat@1099:         this.valueLin = 1.0;
djmoffat@1099:         this.valueDB = 0.0;
djmoffat@1099:         this.object = document.createElement('div');
djmoffat@1099:         this.object.id = 'master-volume-holder';
djmoffat@1099:         this.slider = document.createElement('input');
djmoffat@1099:         this.slider.id = 'master-volume-control';
djmoffat@1099:         this.slider.type = 'range';
djmoffat@1099:         this.valueText = document.createElement('span');
djmoffat@1099:         this.valueText.id = 'master-volume-feedback';
djmoffat@1099:         this.valueText.textContent = '0dB';
djmoffat@1099:         
djmoffat@1099:         this.slider.min = -60;
djmoffat@1099:         this.slider.max = 12;
djmoffat@1099:         this.slider.value = 0;
djmoffat@1099:         this.slider.step = 1;
djmoffat@1099:         this.slider.onmousemove = function(event)
djmoffat@1099:         {
djmoffat@1099:             interfaceContext.volume.valueDB = event.currentTarget.value;
djmoffat@1099:             interfaceContext.volume.valueLin = decibelToLinear(interfaceContext.volume.valueDB);
djmoffat@1099:             interfaceContext.volume.valueText.textContent = interfaceContext.volume.valueDB+'dB';
djmoffat@1099:             audioEngineContext.outputGain.gain.value = interfaceContext.volume.valueLin;
djmoffat@1099:         }
djmoffat@1099:         this.slider.onmouseup = function(event)
djmoffat@1099:         {
djmoffat@1099:             var storePoint = testState.currentStore.XMLDOM.getElementsByTagName('metric')[0].getAllElementsByName('volumeTracker');
djmoffat@1099:             if (storePoint.length == 0)
djmoffat@1099:             {
djmoffat@1099:                 storePoint = storage.document.createElement('metricresult');
djmoffat@1099:                 storePoint.setAttribute('name','volumeTracker');
djmoffat@1099:                 testState.currentStore.XMLDOM.getElementsByTagName('metric')[0].appendChild(storePoint);
djmoffat@1099:             }
djmoffat@1099:             else {
djmoffat@1099:                 storePoint = storePoint[0];
djmoffat@1099:             }
djmoffat@1099:             var node = storage.document.createElement('movement');
djmoffat@1099:             node.setAttribute('test-time',audioEngineContext.timer.getTestTime());
djmoffat@1099:             node.setAttribute('volume',interfaceContext.volume.valueDB);
djmoffat@1099:             node.setAttribute('format','dBFS');
djmoffat@1099:             storePoint.appendChild(node);
djmoffat@1099:         }
djmoffat@1099:         
djmoffat@1099:         var title = document.createElement('div');
djmoffat@1099:         title.innerHTML = '<span>Master Volume Control</span>';
djmoffat@1099:         title.style.fontSize = '0.75em';
djmoffat@1099:         title.style.width = "100%";
djmoffat@1099:         title.align = 'center';
djmoffat@1099:         this.object.appendChild(title);
djmoffat@1099:         
djmoffat@1099:         this.object.appendChild(this.slider);
djmoffat@1099:         this.object.appendChild(this.valueText);
djmoffat@1099:     }
djmoffat@1099: 	// Global Checkers
djmoffat@1099: 	// These functions will help enforce the checkers
djmoffat@1099: 	this.checkHiddenAnchor = function()
djmoffat@1099: 	{
djmoffat@1099: 		for (var ao of audioEngineContext.audioObjects)
djmoffat@1099: 		{
djmoffat@1099: 			if (ao.specification.type == "anchor")
djmoffat@1099: 			{
djmoffat@1099: 				if (ao.interfaceDOM.getValue() > (ao.specification.marker/100) && ao.specification.marker > 0) {
djmoffat@1099: 					// Anchor is not set below
djmoffat@1099: 					console.log('Anchor node not below marker value');
djmoffat@1099: 					alert('Please keep listening');
djmoffat@1099:                     this.storeErrorNode('Anchor node not below marker value');
djmoffat@1099: 					return false;
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 		}
djmoffat@1099: 		return true;
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.checkHiddenReference = function()
djmoffat@1099: 	{
djmoffat@1099: 		for (var ao of audioEngineContext.audioObjects)
djmoffat@1099: 		{
djmoffat@1099: 			if (ao.specification.type == "reference")
djmoffat@1099: 			{
djmoffat@1099: 				if (ao.interfaceDOM.getValue() < (ao.specification.marker/100) && ao.specification.marker > 0) {
djmoffat@1099: 					// Anchor is not set below
djmoffat@1099: 					console.log('Reference node not above marker value');
djmoffat@1099:                     this.storeErrorNode('Reference node not above marker value');
djmoffat@1099: 					alert('Please keep listening');
djmoffat@1099: 					return false;
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 		}
djmoffat@1099: 		return true;
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.checkFragmentsFullyPlayed = function ()
djmoffat@1099: 	{
djmoffat@1099: 		// Checks the entire file has been played back
djmoffat@1099: 		// NOTE ! This will return true IF playback is Looped!!!
djmoffat@1099: 		if (audioEngineContext.loopPlayback)
djmoffat@1099: 		{
djmoffat@1099: 			console.log("WARNING - Looped source: Cannot check fragments are fully played");
djmoffat@1099: 			return true;
djmoffat@1099: 		}
djmoffat@1099: 		var check_pass = true;
djmoffat@1099: 		var error_obj = [];
djmoffat@1099: 		for (var i = 0; i<audioEngineContext.audioObjects.length; i++)
djmoffat@1099: 		{
djmoffat@1099: 			var object = audioEngineContext.audioObjects[i];
djmoffat@1099: 			var time = object.buffer.buffer.duration;
djmoffat@1099: 			var metric = object.metric;
djmoffat@1099: 			var passed = false;
djmoffat@1099: 			for (var j=0; j<metric.listenTracker.length; j++)
djmoffat@1099: 			{
djmoffat@1099: 				var bt = metric.listenTracker[j].getElementsByTagName('buffertime');
djmoffat@1099: 				var start_time = Number(bt[0].getAttribute('start'));
djmoffat@1099: 				var stop_time = Number(bt[0].getAttribute('stop'));
djmoffat@1099: 				var delta = stop_time - start_time;
djmoffat@1099: 				if (delta >= time)
djmoffat@1099: 				{
djmoffat@1099: 					passed = true;
djmoffat@1099: 					break;
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 			if (passed == false)
djmoffat@1099: 			{
djmoffat@1099: 				check_pass = false;
djmoffat@1099: 				console.log("Continue listening to track-"+audioEngineContext.audioObjects.interfaceDOM.getPresentedId());
djmoffat@1099: 				error_obj.push(audioEngineContext.audioObjects.interfaceDOM.getPresentedId());
djmoffat@1099: 			}
djmoffat@1099: 		}
djmoffat@1099: 		if (check_pass == false)
djmoffat@1099: 		{
djmoffat@1099: 			var str_start = "You have not completely listened to fragments ";
djmoffat@1099: 			for (var i=0; i<error_obj.length; i++)
djmoffat@1099: 			{
djmoffat@1099: 				str_start += error_obj[i];
djmoffat@1099: 				if (i != error_obj.length-1)
djmoffat@1099: 				{
djmoffat@1099: 					str_start += ', ';
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 			str_start += ". Please keep listening";
djmoffat@1099: 			console.log("[ALERT]: "+str_start);
djmoffat@1099:             this.storeErrorNode("[ALERT]: "+str_start);
djmoffat@1099: 			alert(str_start);
djmoffat@1099: 		}
djmoffat@1099: 	};
djmoffat@1099: 	this.checkAllMoved = function()
djmoffat@1099: 	{
djmoffat@1099: 		var str = "You have not moved ";
djmoffat@1099: 		var failed = [];
djmoffat@1099: 		for (var ao of audioEngineContext.audioObjects)
djmoffat@1099: 		{
djmoffat@1099: 			if(ao.metric.wasMoved == false && ao.interfaceDOM.canMove() == true)
djmoffat@1099: 			{
djmoffat@1099: 				failed.push(ao.interfaceDOM.getPresentedId());
djmoffat@1099: 			}
djmoffat@1099: 		}
djmoffat@1099: 		if (failed.length == 0)
djmoffat@1099: 		{
djmoffat@1099: 			return true;
djmoffat@1099: 		} else if (failed.length == 1)
djmoffat@1099: 		{
djmoffat@1099: 			str += 'track '+failed[0];
djmoffat@1099: 		} else {
djmoffat@1099: 			str += 'tracks ';
djmoffat@1099: 			for (var i=0; i<failed.length-1; i++)
djmoffat@1099: 			{
djmoffat@1099: 				str += failed[i]+', ';
djmoffat@1099: 			}
djmoffat@1099: 			str += 'and '+failed[i];
djmoffat@1099: 		}
djmoffat@1099: 		str +='.';
djmoffat@1099: 		alert(str);
djmoffat@1099: 		console.log(str);
djmoffat@1099:         this.storeErrorNode(str);
djmoffat@1099: 		return false;
djmoffat@1099: 	};
djmoffat@1099: 	this.checkAllPlayed = function()
djmoffat@1099: 	{
djmoffat@1099: 		var str = "You have not played ";
djmoffat@1099: 		var failed = [];
djmoffat@1099: 		for (var ao of audioEngineContext.audioObjects)
djmoffat@1099: 		{
djmoffat@1099: 			if(ao.metric.wasListenedTo == false)
djmoffat@1099: 			{
djmoffat@1099: 				failed.push(ao.interfaceDOM.getPresentedId());
djmoffat@1099: 			}
djmoffat@1099: 		}
djmoffat@1099: 		if (failed.length == 0)
djmoffat@1099: 		{
djmoffat@1099: 			return true;
djmoffat@1099: 		} else if (failed.length == 1)
djmoffat@1099: 		{
djmoffat@1099: 			str += 'track '+failed[0];
djmoffat@1099: 		} else {
djmoffat@1099: 			str += 'tracks ';
djmoffat@1099: 			for (var i=0; i<failed.length-1; i++)
djmoffat@1099: 			{
djmoffat@1099: 				str += failed[i]+', ';
djmoffat@1099: 			}
djmoffat@1099: 			str += 'and '+failed[i];
djmoffat@1099: 		}
djmoffat@1099: 		str +='.';
djmoffat@1099: 		alert(str);
djmoffat@1099: 		console.log(str);
djmoffat@1099:         this.storeErrorNode(str);
djmoffat@1099: 		return false;
djmoffat@1099: 	};
djmoffat@1099:     
djmoffat@1099:     this.storeErrorNode = function(errorMessage)
djmoffat@1099:     {
djmoffat@1099:         var time = audioEngineContext.timer.getTestTime();
djmoffat@1099:         var node = storage.document.createElement('error');
djmoffat@1099:         node.setAttribute('time',time);
djmoffat@1099:         node.textContent = errorMessage;
djmoffat@1099:         testState.currentStore.XMLDOM.appendChild(node);
djmoffat@1099:     };
djmoffat@1099: }
djmoffat@1099: 
djmoffat@1099: function Storage()
djmoffat@1099: {
djmoffat@1099: 	// Holds results in XML format until ready for collection
djmoffat@1099: 	this.globalPreTest = null;
djmoffat@1099: 	this.globalPostTest = null;
djmoffat@1099: 	this.testPages = [];
djmoffat@1099: 	this.document = document.implementation.createDocument(null,"waetresult");
n@1102: 	this.root = this.document.childNodes[0];
djmoffat@1099: 	this.state = 0;
djmoffat@1099: 	
djmoffat@1099: 	this.initialise = function()
djmoffat@1099: 	{
djmoffat@1099: 		if (specification.preTest != undefined){this.globalPreTest = new this.surveyNode(this,this.root,specification.preTest);}
djmoffat@1099: 		if (specification.postTest != undefined){this.globalPostTest = new this.surveyNode(this,this.root,specification.postTest);}
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.createTestPageStore = function(specification)
djmoffat@1099: 	{
djmoffat@1099: 		var store = new this.pageNode(this,specification);
djmoffat@1099: 		this.testPages.push(store);
djmoffat@1099: 		return this.testPages[this.testPages.length-1];
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.surveyNode = function(parent,root,specification)
djmoffat@1099: 	{
djmoffat@1099: 		this.specification = specification;
djmoffat@1099: 		this.parent = parent;
djmoffat@1099: 		this.XMLDOM = this.parent.document.createElement('survey');
djmoffat@1099: 		this.XMLDOM.setAttribute('location',this.specification.location);
djmoffat@1099: 		for (var optNode of this.specification.options)
djmoffat@1099: 		{
djmoffat@1099: 			if (optNode.type != 'statement')
djmoffat@1099: 			{
djmoffat@1099: 				var node = this.parent.document.createElement('surveyresult');
djmoffat@1099: 				node.id = optNode.id;
djmoffat@1099: 				node.setAttribute('type',optNode.type);
djmoffat@1099: 				this.XMLDOM.appendChild(node);
djmoffat@1099: 			}
djmoffat@1099: 		}
djmoffat@1099: 		root.appendChild(this.XMLDOM);
djmoffat@1099: 		
djmoffat@1099: 		this.postResult = function(node)
djmoffat@1099: 		{
djmoffat@1099: 			// From popup: node is the popupOption node containing both spec. and results
djmoffat@1099: 			// ID is the position
djmoffat@1099: 			if (node.specification.type == 'statement'){return;}
djmoffat@1099: 			var surveyresult = this.parent.document.getElementById(node.specification.id);
djmoffat@1099: 			switch(node.specification.type)
djmoffat@1099: 			{
djmoffat@1099: 			case "number":
djmoffat@1099: 			case "question":
djmoffat@1099: 				var child = this.parent.document.createElement('response');
djmoffat@1099: 				child.textContent = node.response;
djmoffat@1099: 				surveyresult.appendChild(child);
djmoffat@1099: 				break;
djmoffat@1099: 			case "radio":
djmoffat@1099: 				var child = this.parent.document.createElement('response');
djmoffat@1099: 				child.setAttribute('name',node.response.name);
djmoffat@1099: 				child.textContent = node.response.text;
djmoffat@1099: 				surveyresult.appendChild(child);
djmoffat@1099: 				break;
djmoffat@1099: 			case "checkbox":
djmoffat@1099: 				for (var i=0; i<node.response.length; i++)
djmoffat@1099: 				{
djmoffat@1099: 					var checkNode = this.parent.document.createElement('response');
djmoffat@1099: 					checkNode.setAttribute('name',node.response[i].name);
djmoffat@1099: 					checkNode.setAttribute('checked',node.response[i].checked);
djmoffat@1099: 					surveyresult.appendChild(checkNode);
djmoffat@1099: 				}
djmoffat@1099: 				break;
djmoffat@1099: 			}
djmoffat@1099: 		};
djmoffat@1099: 	};
djmoffat@1099: 	
djmoffat@1099: 	this.pageNode = function(parent,specification)
djmoffat@1099: 	{
djmoffat@1099: 		// Create one store per test page
djmoffat@1099: 		this.specification = specification;
djmoffat@1099: 		this.parent = parent;
djmoffat@1099: 		this.XMLDOM = this.parent.document.createElement('page');
djmoffat@1099: 		this.XMLDOM.setAttribute('id',specification.id);
djmoffat@1099: 		this.XMLDOM.setAttribute('presentedId',specification.presentedId);
djmoffat@1099: 		if (specification.preTest != undefined){this.preTest = new this.parent.surveyNode(this.parent,this.XMLDOM,this.specification.preTest);}
djmoffat@1099: 		if (specification.postTest != undefined){this.postTest = new this.parent.surveyNode(this.parent,this.XMLDOM,this.specification.postTest);}
djmoffat@1099: 		
djmoffat@1099: 		// Add any page metrics
djmoffat@1099: 		var page_metric = this.parent.document.createElement('metric');
djmoffat@1099: 		this.XMLDOM.appendChild(page_metric);
djmoffat@1099: 		
djmoffat@1099: 		// Add the audioelement
djmoffat@1099: 		for (var element of this.specification.audioElements)
djmoffat@1099: 		{
djmoffat@1099: 			var aeNode = this.parent.document.createElement('audioelement');
djmoffat@1099: 			aeNode.id = element.id;
djmoffat@1099: 			aeNode.setAttribute('type',element.type);
djmoffat@1099: 			aeNode.setAttribute('url', element.url);
djmoffat@1099: 			aeNode.setAttribute('gain', element.gain);
djmoffat@1099: 			if (element.type == 'anchor' || element.type == 'reference')
djmoffat@1099: 			{
djmoffat@1099: 				if (element.marker > 0)
djmoffat@1099: 				{
djmoffat@1099: 					aeNode.setAttribute('marker',element.marker);
djmoffat@1099: 				}
djmoffat@1099: 			}
djmoffat@1099: 			var ae_metric = this.parent.document.createElement('metric');
djmoffat@1099: 			aeNode.appendChild(ae_metric); 
djmoffat@1099: 			this.XMLDOM.appendChild(aeNode);
djmoffat@1099: 		}
djmoffat@1099: 		
djmoffat@1099: 		this.parent.root.appendChild(this.XMLDOM);
djmoffat@1099: 	};
djmoffat@1099: 	this.finish = function()
djmoffat@1099: 	{
djmoffat@1099: 		if (this.state == 0)
djmoffat@1099: 		{
djmoffat@1099: 			var projectDocument = specification.projectXML;
djmoffat@1099: 			projectDocument.setAttribute('file-name',url);
djmoffat@1099: 			this.root.appendChild(projectDocument);
djmoffat@1099: 			this.root.appendChild(returnDateNode());
djmoffat@1099: 			this.root.appendChild(interfaceContext.returnNavigator());
djmoffat@1099: 		}
djmoffat@1099: 		this.state = 1;
djmoffat@1099: 		return this.root;
djmoffat@1099: 	};
djmoffat@1099: }