giuliomoro@15: // Once this is loaded and parsed, begin execution
giuliomoro@15: loadInterface();
giuliomoro@15: 
giuliomoro@15: function loadInterface() {
giuliomoro@15: 	// Get the dimensions of the screen available to the page
giuliomoro@15: 	var width = window.innerWidth;
giuliomoro@15: 	var height = window.innerHeight;
giuliomoro@15: 	interfaceContext.insertPoint.innerHTML = null; // Clear the current schema
giuliomoro@15: 	
giuliomoro@15: 	// Custom comparator Object
giuliomoro@15: 	Interface.prototype.comparator = null;
giuliomoro@15: 	
giuliomoro@15: 	// The injection point into the HTML page
giuliomoro@15: 	interfaceContext.insertPoint = document.getElementById("topLevelBody");
giuliomoro@15: 	var testContent = document.createElement('div');
giuliomoro@15: 	testContent.id = 'testContent';
giuliomoro@15: 	
giuliomoro@15: 	// Create the top div for the Title element
giuliomoro@15: 	var titleAttr = specification.title;
giuliomoro@15: 	var title = document.createElement('div');
giuliomoro@15: 	title.className = "title";
giuliomoro@15: 	title.align = "center";
giuliomoro@15: 	var titleSpan = document.createElement('span');
giuliomoro@15: 	
giuliomoro@15: 	// Set title to that defined in XML, else set to default
giuliomoro@15: 	if (titleAttr != undefined) {
giuliomoro@15: 		titleSpan.textContent = titleAttr;
giuliomoro@15: 	} else {
giuliomoro@15: 		titleSpan.textContent =  'Listening test';
giuliomoro@15: 	}
giuliomoro@15: 	// Insert the titleSpan element into the title div element.
giuliomoro@15: 	title.appendChild(titleSpan);
giuliomoro@15: 	
giuliomoro@15: 	var pagetitle = document.createElement('div');
giuliomoro@15: 	pagetitle.className = "pageTitle";
giuliomoro@15: 	pagetitle.align = "center";
giuliomoro@15: 	var titleSpan = document.createElement('span');
giuliomoro@15: 	titleSpan.id = "pageTitle";
giuliomoro@15: 	pagetitle.appendChild(titleSpan);
giuliomoro@15: 	
giuliomoro@15: 	// Create Interface buttons!
giuliomoro@15: 	var interfaceButtons = document.createElement('div');
giuliomoro@15: 	interfaceButtons.id = 'interface-buttons';
giuliomoro@15: 	interfaceButtons.style.height = '25px';
giuliomoro@15: 	
giuliomoro@15: 	// Create playback start/stop points
giuliomoro@15: 	var playback = document.createElement("button");
giuliomoro@15: 	playback.innerHTML = 'Stop';
giuliomoro@15: 	playback.id = 'playback-button';
giuliomoro@15: 	playback.style.float = 'left';
giuliomoro@15: 	// onclick function. Check if it is playing or not, call the correct function in the
giuliomoro@15: 	// audioEngine, change the button text to reflect the next state.
giuliomoro@15: 	playback.onclick = function() {
giuliomoro@15: 		if (audioEngineContext.status == 1) {
giuliomoro@15: 			audioEngineContext.stop();
giuliomoro@15: 			this.innerHTML = 'Stop';
giuliomoro@15:             var time = audioEngineContext.timer.getTestTime();
giuliomoro@15:             console.log('Stopped at ' + time); // DEBUG/SAFETY
giuliomoro@15: 		}
giuliomoro@15: 	};
giuliomoro@15: 	// Append the interface buttons into the interfaceButtons object.
giuliomoro@15: 	interfaceButtons.appendChild(playback);
giuliomoro@15: 	
giuliomoro@15: 	// Global parent for the comment boxes on the page
giuliomoro@15: 	var feedbackHolder = document.createElement('div');
giuliomoro@15: 	feedbackHolder.id = 'feedbackHolder';
giuliomoro@15: 	
giuliomoro@15: 	// Construct the AB Boxes
giuliomoro@15: 	var boxes = document.createElement('div');
giuliomoro@15: 	boxes.align = "center";
giuliomoro@15: 	boxes.id = "box-holders";
giuliomoro@15:     boxes.style.float = "left";
giuliomoro@15: 	
giuliomoro@15: 	var submit = document.createElement('button');
giuliomoro@15: 	submit.id = "submit";
giuliomoro@15: 	submit.onclick = buttonSubmitClick;
giuliomoro@15: 	submit.className = "big-button";
giuliomoro@15: 	submit.textContent = "submit";
giuliomoro@15: 	submit.style.position = "relative";
giuliomoro@15: 	submit.style.left = (window.innerWidth-250)/2 + 'px';
giuliomoro@15: 		
giuliomoro@15: 	feedbackHolder.appendChild(boxes);
giuliomoro@15: 	
giuliomoro@15: 	// Inject into HTML
giuliomoro@15: 	testContent.appendChild(title); // Insert the title
giuliomoro@15: 	testContent.appendChild(pagetitle);
giuliomoro@15: 	testContent.appendChild(interfaceButtons);
giuliomoro@15: 	testContent.appendChild(feedbackHolder);
giuliomoro@15: 	testContent.appendChild(submit);
giuliomoro@15: 	interfaceContext.insertPoint.appendChild(testContent);
giuliomoro@15: 
giuliomoro@15: 	// Load the full interface
giuliomoro@15: 	testState.initialise();
giuliomoro@15: 	testState.advanceState();
giuliomoro@15: }
giuliomoro@15: 
giuliomoro@15: function loadTest(audioHolderObject)
giuliomoro@15: {
giuliomoro@15: 	var feedbackHolder = document.getElementById('feedbackHolder');
giuliomoro@15: 	var interfaceObj = audioHolderObject.interfaces;
giuliomoro@15: 	if (interfaceObj.length > 1)
giuliomoro@15: 	{
giuliomoro@15: 		console.log("WARNING - This interface only supports one <interface> node per page. Using first interface node");
giuliomoro@15: 	}
giuliomoro@15: 	interfaceObj = interfaceObj[0];
giuliomoro@15: 	
giuliomoro@15: 	if(interfaceObj.title != null)
giuliomoro@15: 	{
giuliomoro@15: 		document.getElementById("pageTitle").textContent = interfaceObj.title;
giuliomoro@15: 	}
giuliomoro@15:     
giuliomoro@15:     var interfaceOptions = specification.interfaces.options.concat(interfaceObj.options);
giuliomoro@15:     for (var option of interfaceOptions)
giuliomoro@15:     {
giuliomoro@15:         if (option.type == "show")
giuliomoro@15:         {
giuliomoro@15:             switch(option.name) {
giuliomoro@15:                 case "playhead":
giuliomoro@15:                     var playbackHolder = document.getElementById('playback-holder');
giuliomoro@15:                     if (playbackHolder == null)
giuliomoro@15:                     {
giuliomoro@15:                         playbackHolder = document.createElement('div');
giuliomoro@15:                         playbackHolder.style.width = "100%";
giuliomoro@15:                         playbackHolder.style.float = "left";
giuliomoro@15:                         playbackHolder.align = 'center';
giuliomoro@15:                         playbackHolder.appendChild(interfaceContext.playhead.object);
giuliomoro@15:                         feedbackHolder.appendChild(playbackHolder);
giuliomoro@15:                     }
giuliomoro@15:                     break;
giuliomoro@15:                 case "page-count":
giuliomoro@15:                     var pagecountHolder = document.getElementById('page-count');
giuliomoro@15:                     if (pagecountHolder == null)
giuliomoro@15:                     {
giuliomoro@15:                         pagecountHolder = document.createElement('div');
giuliomoro@15:                         pagecountHolder.id = 'page-count';
giuliomoro@15:                     }
giuliomoro@15:                     pagecountHolder.innerHTML = '<span>Page '+(testState.stateIndex+1)+' of '+testState.stateMap.length+'</span>';
giuliomoro@15:                     var inject = document.getElementById('interface-buttons');
giuliomoro@15:                     inject.appendChild(pagecountHolder);
giuliomoro@15:                     break;
giuliomoro@15:                 case "volume":
giuliomoro@15:                     if (document.getElementById('master-volume-holder') == null)
giuliomoro@15:                     {
giuliomoro@15:                         feedbackHolder.appendChild(interfaceContext.volume.object);
giuliomoro@15:                     }
giuliomoro@15:                     break;
giuliomoro@15:             }
giuliomoro@15:         }
giuliomoro@15:     }
giuliomoro@15: 	
giuliomoro@15: 	// Populate the comparator object
giuliomoro@15: 	interfaceContext.comparator = new comparator(audioHolderObject);
giuliomoro@15:     if (audioHolderObject.showElementComments)
giuliomoro@15:     {
giuliomoro@15:         var commentHolder = document.createElement('div');
giuliomoro@15:         commentHolder.id = 'commentHolder';
giuliomoro@15:         document.getElementById('testContent').appendChild(commentHolder);
giuliomoro@15:         // Generate one comment box per presented page
giuliomoro@15:         for (var element of audioEngineContext.audioObjects)
giuliomoro@15:         {
giuliomoro@15:             interfaceContext.commentBoxes.createCommentBox(element);
giuliomoro@15:         }
giuliomoro@15:         interfaceContext.commentBoxes.showCommentBoxes(commentHolder,true);
giuliomoro@15:     }
giuliomoro@15: 	resizeWindow(null);
giuliomoro@15: }
giuliomoro@15: 
giuliomoro@15: function comparator(audioHolderObject)
giuliomoro@15: {	
giuliomoro@15: 	this.comparatorBox = function(audioElement,id,text)
giuliomoro@15: 	{
giuliomoro@15: 		this.parent = audioElement;
giuliomoro@15: 		this.id = id;
giuliomoro@15: 		this.value = 0;
giuliomoro@15: 		this.disabled = true;
giuliomoro@15: 		this.box = document.createElement('div');
giuliomoro@15: 		this.box.className = 'comparator-holder';
giuliomoro@15: 		this.box.setAttribute('track-id',audioElement.id);
giuliomoro@15: 		this.box.id = 'comparator-'+text;
giuliomoro@15: 		this.selector = document.createElement('div');
giuliomoro@15: 		this.selector.className = 'comparator-selector disabled';
giuliomoro@15: 		var selectorText = document.createElement('span');
giuliomoro@15: 		selectorText.textContent = text;
giuliomoro@15: 		this.selector.appendChild(selectorText);
giuliomoro@15: 		this.playback = document.createElement('button');
giuliomoro@15: 		this.playback.className = 'comparator-button';
giuliomoro@15: 		this.playback.disabled = true;
giuliomoro@15: 		this.playback.textContent = "Listen";
giuliomoro@15: 		this.box.appendChild(this.selector);
giuliomoro@15: 		this.box.appendChild(this.playback);
giuliomoro@15: 		this.selector.onclick = function(event)
giuliomoro@15: 		{
giuliomoro@15: 			var time = audioEngineContext.timer.getTestTime();
giuliomoro@15: 			if ($(event.currentTarget).hasClass('disabled'))
giuliomoro@15: 			{
giuliomoro@15: 				console.log("Please wait until sample has loaded");
giuliomoro@15: 				return;
giuliomoro@15: 			}
giuliomoro@15: 			if (audioEngineContext.status == 0)
giuliomoro@15: 			{
giuliomoro@15: 				alert("Please listen to the samples before making a selection");
giuliomoro@15: 				console.log("Please listen to the samples before making a selection");
giuliomoro@15: 				return;
giuliomoro@15:             }
giuliomoro@15: 			var id = event.currentTarget.parentElement.getAttribute('track-id');
giuliomoro@15: 			interfaceContext.comparator.selected = id;
giuliomoro@15:             if ($(event.currentTarget).hasClass("selected")) {
giuliomoro@15:                 $(".comparator-selector").removeClass('selected');
giuliomoro@15:                 for (var i=0; i<interfaceContext.comparator.comparators.length; i++)
giuliomoro@15:                 {
giuliomoro@15:                     var obj = interfaceContext.comparator.comparators[i];
giuliomoro@15:                     obj.parent.metric.moved(time,0);
giuliomoro@15:                     obj.value = 0;
giuliomoro@15:                 }
giuliomoro@15:             } else {
giuliomoro@15:                 $(".comparator-selector").removeClass('selected');
giuliomoro@15:                 $(event.currentTarget).addClass('selected');
giuliomoro@15:                 for (var i=0; i<interfaceContext.comparator.comparators.length; i++)
giuliomoro@15:                 {
giuliomoro@15:                     var obj = interfaceContext.comparator.comparators[i];
giuliomoro@15:                     if (i == id) {
giuliomoro@15:                         obj.value = 1;
giuliomoro@15:                     } else {
giuliomoro@15:                         obj.value = 0;
giuliomoro@15:                     }
giuliomoro@15:                     obj.parent.metric.moved(time,obj.value);
giuliomoro@15:                 }
giuliomoro@15:                 console.log("Selected "+id+' ('+time+')');
giuliomoro@15:             }
giuliomoro@15: 		};
giuliomoro@15:         this.playback.setAttribute("playstate","ready");
giuliomoro@15: 		this.playback.onclick = function(event)
giuliomoro@15: 		{
giuliomoro@15: 			var id = event.currentTarget.parentElement.getAttribute('track-id');
giuliomoro@15:             if (event.currentTarget.getAttribute("playstate") == "ready")
giuliomoro@15:             {
giuliomoro@15:                 audioEngineContext.play(id);
giuliomoro@15:             } else if (event.currentTarget.getAttribute("playstate") == "playing") {
giuliomoro@15:                 audioEngineContext.stop();
giuliomoro@15:             }
giuliomoro@15: 			
giuliomoro@15: 		};
giuliomoro@15: 		
giuliomoro@15: 		this.enable = function()
giuliomoro@15: 		{
giuliomoro@15: 			if (this.parent.state == 1)
giuliomoro@15: 			{
giuliomoro@15: 				$(this.selector).removeClass('disabled');
giuliomoro@15: 				this.playback.disabled = false;
giuliomoro@15: 			}
giuliomoro@15: 		};
giuliomoro@15: 		this.updateLoading = function(progress)
giuliomoro@15: 		{
giuliomoro@15: 			if (progress != 100)
giuliomoro@15: 			{
giuliomoro@15: 				progress = String(progress);
giuliomoro@15: 				progress = progress.split('.')[0];
giuliomoro@15: 				this.playback.textContent = progress+'%';
giuliomoro@15: 			} else {
giuliomoro@15: 				this.playback.textContent = "Play";
giuliomoro@15: 			}
giuliomoro@15: 		};
giuliomoro@15:         this.error = function() {
giuliomoro@15:             // audioObject has an error!!
giuliomoro@15:             this.playback.textContent = "Error";
giuliomoro@15:             $(this.playback).addClass("error-colour");
giuliomoro@15:         }
giuliomoro@15:         this.startPlayback = function()
giuliomoro@15:         {
giuliomoro@15:             $('.comparator-button').text('Listen');
giuliomoro@15:             $(this.playback).text('Stop');
giuliomoro@15:             this.playback.setAttribute("playstate","playing");
giuliomoro@15:         };
giuliomoro@15:         this.stopPlayback = function()
giuliomoro@15:         {
giuliomoro@15:             $(this.playback).text('Listen');
giuliomoro@15:             this.playback.setAttribute("playstate","ready");
giuliomoro@15:         };
giuliomoro@15: 		this.exportXMLDOM = function(audioObject)
giuliomoro@15: 		{
giuliomoro@15: 			var node = storage.document.createElement('value');
giuliomoro@15: 			node.textContent = this.value;
giuliomoro@15: 			return node;
giuliomoro@15: 		};
giuliomoro@15: 		this.getValue = function() {
giuliomoro@15: 			return this.value;	
giuliomoro@15: 		};
giuliomoro@15: 		this.getPresentedId = function()
giuliomoro@15: 		{
giuliomoro@15: 			return this.selector.children[0].textContent;
giuliomoro@15: 		};
giuliomoro@15: 		this.canMove = function()
giuliomoro@15: 		{
giuliomoro@15: 			return false;
giuliomoro@15: 		};
giuliomoro@15: 	};
giuliomoro@15: 	
giuliomoro@15: 	this.boxHolders = document.getElementById('box-holders');
giuliomoro@15: 	this.boxHolders.innerHTML = null;
giuliomoro@15: 	this.comparators = [];
giuliomoro@15: 	this.selected = null;
giuliomoro@15: 	
giuliomoro@15: 	// First generate the Audio Objects for the Audio Engine
giuliomoro@15: 	for (var index=0; index<audioHolderObject.audioElements.length; index++)
giuliomoro@15: 	{
giuliomoro@15: 		var element = audioHolderObject.audioElements[index];
giuliomoro@15:         var audioObject = audioEngineContext.newTrack(element);
giuliomoro@15: 		if (index == audioHolderObject.outsideReference || element.type == 'outside-reference')
giuliomoro@15: 		{
giuliomoro@15:             var orNode = new interfaceContext.outsideReferenceDOM(audioObject,index,document.getElementById('interface-buttons'));
giuliomoro@15: 			audioObject.bindInterface(orNode);
giuliomoro@15:         } else {
giuliomoro@15:             var label;
giuliomoro@15:             switch(audioObject.specification.parent.label) {
giuliomoro@15:                 case "none":
giuliomoro@15:                     label = "";
giuliomoro@15:                     break;
giuliomoro@15:                 case "number":
giuliomoro@15:                     label = ""+index;
giuliomoro@15:                     break;
giuliomoro@15:                 case "letter":
giuliomoro@15:                     label = String.fromCharCode(97 + index);
giuliomoro@15:                     break;
giuliomoro@16:                 case "given":
giuliomoro@16:                 	label = element.label;
giuliomoro@16:                 	break;
giuliomoro@15:                 default:
giuliomoro@15:                     label = String.fromCharCode(65 + index);
giuliomoro@15:                     break;
giuliomoro@15:             }
giuliomoro@15:             var node = new this.comparatorBox(audioObject,index,label);
giuliomoro@15:             audioObject.bindInterface(node);
giuliomoro@15:             this.comparators.push(node);
giuliomoro@16:             if(element.inactive===true){
giuliomoro@16:                 node.box.children[0].classList.add('inactive');
giuliomoro@16:             }
giuliomoro@15:             this.boxHolders.appendChild(node.box);
giuliomoro@15:         }
giuliomoro@15: 	}
giuliomoro@15: 	return this;
giuliomoro@15: }
giuliomoro@15: 
giuliomoro@15: function resizeWindow(event)
giuliomoro@15: {
giuliomoro@15: 	document.getElementById('submit').style.left = (window.innerWidth-250)/2 + 'px';
giuliomoro@15: 	var numObj = interfaceContext.comparator.comparators.length;
giuliomoro@15: 	var boxW = numObj*312;
giuliomoro@15:     var diff = window.innerWidth - boxW;
giuliomoro@15:     while (diff < 0)
giuliomoro@15:     {
giuliomoro@15:         numObj = Math.ceil(numObj/2);
giuliomoro@15:         boxW = numObj*312;
giuliomoro@15:         diff = window.innerWidth - boxW;
giuliomoro@15:     }
giuliomoro@15:     document.getElementById('box-holders').style.marginLeft = diff/2 + 'px';
giuliomoro@15:     document.getElementById('box-holders').style.marginRight = diff/2 + 'px';
giuliomoro@15:     document.getElementById('box-holders').style.width = boxW + 'px';
giuliomoro@15:     
giuliomoro@15:     var outsideRef = document.getElementById('outside-reference');
giuliomoro@15: 	if(outsideRef != null)
giuliomoro@15: 	{
giuliomoro@15: 		outsideRef.style.left = (window.innerWidth-120)/2 + 'px';
giuliomoro@15: 	}
giuliomoro@15: }
giuliomoro@15: 
giuliomoro@15: function buttonSubmitClick()
giuliomoro@15: {
giuliomoro@15: 	var checks = [];
giuliomoro@15: 	checks = checks.concat(testState.currentStateMap.interfaces[0].options);
giuliomoro@15: 	checks = checks.concat(specification.interfaces.options);
giuliomoro@15: 	var canContinue = true;
giuliomoro@15: 	
giuliomoro@15: 	for (var i=0; i<checks.length; i++) {
giuliomoro@15: 		if (checks[i].type == 'check')
giuliomoro@15: 		{
giuliomoro@15: 			switch(checks[i].name) {
giuliomoro@15: 			case 'fragmentPlayed':
giuliomoro@15: 				// Check if all fragments have been played
giuliomoro@15: 				var checkState = interfaceContext.checkAllPlayed();
giuliomoro@15: 				if (checkState == false) {canContinue = false;}
giuliomoro@15: 				break;
giuliomoro@15: 			case  'fragmentFullPlayback':
giuliomoro@15: 				// Check all fragments have been played to their full length
giuliomoro@15: 				var checkState = interfaceContext.checkFragmentsFullyPlayed();
giuliomoro@15: 				if (checkState == false) {canContinue = false;}
giuliomoro@15: 				break;
giuliomoro@15: 			case 'fragmentMoved':
giuliomoro@15: 				// Check all fragment sliders have been moved.
giuliomoro@15: 				var checkState = interfaceContext.checkAllMoved();
giuliomoro@15: 				if (checkState == false) {canContinue = false;}
giuliomoro@15: 				break;
giuliomoro@15: 			case 'fragmentComments':
giuliomoro@15: 				// Check all fragment sliders have been moved.
giuliomoro@15: 				var checkState = interfaceContext.checkAllCommented();
giuliomoro@15: 				if (checkState == false) {canContinue = false;}
giuliomoro@15: 				break;
giuliomoro@16: 			case 'scalerange':
giuliomoro@16: 			// Check the scale has been used effectively
giuliomoro@16: 			var checkState = interfaceContext.checkScaleRange(checks[i].min,checks[i].max);
giuliomoro@16: 				if (checkState == false) {canContinue = false;}
giuliomoro@15: 				break;
giuliomoro@15: 			default:
giuliomoro@15: 				console.log("WARNING - Check option "+checks[i].check+" is not supported on this interface");
giuliomoro@15: 				break;
giuliomoro@15: 			}
giuliomoro@15: 
giuliomoro@15: 		}
giuliomoro@15: 		if (!canContinue) {break;}
giuliomoro@15: 	}
giuliomoro@15: 	if (canContinue)
giuliomoro@15: 	{
giuliomoro@15: 	    if (audioEngineContext.status == 1) {
giuliomoro@15: 	        var playback = document.getElementById('playback-button');
giuliomoro@15: 	        playback.click();
giuliomoro@15: 	    // This function is called when the submit button is clicked. Will check for any further tests to perform, or any post-test options
giuliomoro@15: 	    } else
giuliomoro@15: 	    {
giuliomoro@15: 	        if (audioEngineContext.timer.testStarted == false)
giuliomoro@15: 	        {
giuliomoro@15: 	            alert('You have not started the test! Please press start to begin the test!');
giuliomoro@15: 	            return;
giuliomoro@15: 	        }
giuliomoro@15: 	    }
giuliomoro@15: 	    testState.advanceState();
giuliomoro@15: 	}
giuliomoro@15: }
giuliomoro@15: 
giuliomoro@15: function pageXMLSave(store, pageSpecification)
giuliomoro@15: {
giuliomoro@15: 	// MANDATORY
giuliomoro@15: 	// Saves a specific test page
giuliomoro@15: 	// You can use this space to add any extra nodes to your XML <audioHolder> saves
giuliomoro@15: 	// Get the current <page> information in store (remember to appendChild your data to it)
giuliomoro@15: 	// pageSpecification is the current page node configuration
giuliomoro@15: 	// To create new XML nodes, use storage.document.createElement();
giuliomoro@16: }