nickjillings@1341: /**
nickjillings@1341:  *  mushra.js
nickjillings@1341:  *  Create the MUSHRA interface
nickjillings@1341:  */
nicholas@2701: /*globals window, interfaceContext, document, $, specification, audioEngineContext, console, testState, storage */
nickjillings@1341: // Once this is loaded and parsed, begin execution
nickjillings@1341: loadInterface();
nickjillings@1341: 
nickjillings@1341: function loadInterface() {
nicholas@2538:     // Get the dimensions of the screen available to the page
nicholas@2538:     var width = window.innerWidth;
nicholas@2538:     var height = window.innerHeight;
nicholas@2538: 
nicholas@2538:     // The injection point into the HTML page
nicholas@2538:     interfaceContext.insertPoint = document.getElementById("topLevelBody");
nicholas@2538:     var testContent = document.createElement('div');
nicholas@2538:     testContent.id = 'testContent';
nicholas@2538: 
nicholas@2538:     // Create the top div for the Title element
nicholas@2538:     var titleAttr = specification.title;
nicholas@2538:     var title = document.createElement('div');
nicholas@2538:     title.className = "title";
nicholas@2538:     title.align = "center";
nicholas@2538:     var titleSpan = document.createElement('span');
nicholas@2470:     titleSpan.id = "test-title";
nicholas@2538: 
nicholas@2538:     // Set title to that defined in XML, else set to default
nicholas@2701:     if (titleAttr !== undefined) {
nicholas@2538:         titleSpan.textContent = titleAttr;
nicholas@2538:     } else {
nicholas@2538:         titleSpan.textContent = 'Listening test';
nicholas@2538:     }
nicholas@2538:     // Insert the titleSpan element into the title div element.
nicholas@2538:     title.appendChild(titleSpan);
nicholas@2538: 
nicholas@2538:     var pagetitle = document.createElement('div');
nicholas@2538:     pagetitle.className = "pageTitle";
nicholas@2538:     pagetitle.align = "center";
nicholas@2701: 
nicholas@2701:     titleSpan = document.createElement('span');
nicholas@2538:     titleSpan.id = "pageTitle";
nicholas@2538:     pagetitle.appendChild(titleSpan);
nicholas@2538: 
nicholas@2538:     // Create Interface buttons!
nicholas@2538:     var interfaceButtons = document.createElement('div');
nicholas@2538:     interfaceButtons.id = 'interface-buttons';
nicholas@2538:     interfaceButtons.style.height = '25px';
nicholas@2538: 
nicholas@2538:     // Create playback start/stop points
nicholas@2538:     var playback = document.createElement("button");
nicholas@2538:     playback.innerHTML = 'Stop';
nicholas@2538:     playback.id = 'playback-button';
nicholas@2850:     playback.style.display = 'inline-block';
nicholas@2538:     // onclick function. Check if it is playing or not, call the correct function in the
nicholas@2538:     // audioEngine, change the button text to reflect the next state.
nicholas@2538:     playback.onclick = function () {
nicholas@2538:         if (audioEngineContext.status == 1) {
nicholas@2538:             audioEngineContext.stop();
nicholas@2538:             this.innerHTML = 'Stop';
nickjillings@1341:             var time = audioEngineContext.timer.getTestTime();
nickjillings@1341:             console.log('Stopped at ' + time); // DEBUG/SAFETY
nicholas@2538:         }
nicholas@2538:     };
nicholas@2538:     // Create Submit (save) button
nicholas@2538:     var submit = document.createElement("button");
nicholas@2538:     submit.innerHTML = 'Next';
nicholas@2538:     submit.onclick = buttonSubmitClick;
nicholas@2538:     submit.id = 'submit-button';
nicholas@2850:     submit.style.display = 'inline-block';
n@3006: 
n@3006:     // Create the sort button
n@3006:     var sort = document.createElement("button");
n@3006:     sort.id = "sort-fragments";
n@3006:     sort.textContent = "Sort";
n@3006:     sort.style.display = "inline-block";
n@3006:     sort.style.visibility = "hidden";
n@3006:     sort.onclick = buttonSortFragmentClick;
n@3006: 
nicholas@2538:     // Append the interface buttons into the interfaceButtons object.
nicholas@2538:     interfaceButtons.appendChild(playback);
nicholas@2538:     interfaceButtons.appendChild(submit);
n@3006:     interfaceButtons.appendChild(sort);
n@3006: 
nicholas@2538: 
nicholas@2395:     // Create outside reference holder
nicholas@2395:     var outsideRef = document.createElement("div");
nicholas@2395:     outsideRef.id = "outside-reference-holder";
nicholas@2538: 
nicholas@2538: 
nicholas@2538:     // Create a slider box
nicholas@2538:     var sliderBox = document.createElement('div');
nicholas@2538:     sliderBox.style.width = "100%";
nicholas@2538:     sliderBox.style.height = window.innerHeight - 200 + 12 + 'px';
nicholas@2538:     sliderBox.style.marginBottom = '10px';
nicholas@2538:     sliderBox.id = 'slider';
nicholas@2538:     var scaleHolder = document.createElement('div');
nicholas@2538:     scaleHolder.id = "scale-holder";
nicholas@2538:     sliderBox.appendChild(scaleHolder);
nicholas@2538:     var scaleText = document.createElement('div');
nicholas@2538:     scaleText.id = "scale-text-holder";
nicholas@2538:     scaleHolder.appendChild(scaleText);
nicholas@2538:     var scaleCanvas = document.createElement('canvas');
nicholas@2538:     scaleCanvas.id = "scale-canvas";
nicholas@2538:     scaleHolder.appendChild(scaleCanvas);
nicholas@2538:     var sliderObjectHolder = document.createElement('div');
nicholas@2538:     sliderObjectHolder.id = 'slider-holder';
nicholas@2538:     sliderObjectHolder.align = "center";
nicholas@2538:     sliderBox.appendChild(sliderObjectHolder);
nicholas@2538: 
nicholas@2538:     // Global parent for the comment boxes on the page
nicholas@2538:     var feedbackHolder = document.createElement('div');
nicholas@2538:     feedbackHolder.id = 'feedbackHolder';
nicholas@2538: 
nicholas@2538:     testContent.style.zIndex = 1;
nicholas@2538:     interfaceContext.insertPoint.innerHTML = ""; // Clear the current schema
nicholas@2538: 
nicholas@2538:     // Inject into HTML
nicholas@2538:     testContent.appendChild(title); // Insert the title
nicholas@2538:     testContent.appendChild(pagetitle);
nicholas@2538:     testContent.appendChild(interfaceButtons);
nicholas@2395:     testContent.appendChild(outsideRef);
nicholas@2538:     testContent.appendChild(sliderBox);
nicholas@2538:     testContent.appendChild(feedbackHolder);
nicholas@2538:     interfaceContext.insertPoint.appendChild(testContent);
nickjillings@1341: 
nicholas@2538:     // Load the full interface
nicholas@2538:     testState.initialise();
nicholas@2538:     testState.advanceState();
nickjillings@1341: }
nickjillings@1341: 
nicholas@2538: function loadTest(audioHolderObject) {
nicholas@2538:     var id = audioHolderObject.id;
nicholas@2538: 
nicholas@2538:     var feedbackHolder = document.getElementById('feedbackHolder');
nicholas@2380:     feedbackHolder.innerHTML = "";
nicholas@2650:     var interfaceObj = interfaceContext.getCombinedInterfaces(audioHolderObject);
nicholas@2538:     if (interfaceObj.length > 1) {
nicholas@2538:         console.log("WARNING - This interface only supports one <interface> node per page. Using first interface node");
nicholas@2538:     }
nicholas@2538:     interfaceObj = interfaceObj[0];
nicholas@2538: 
nicholas@2470:     // Set the page title
nicholas@2470:     if (typeof audioHolderObject.title == "string" && audioHolderObject.title.length > 0) {
nicholas@2701:         document.getElementById("test-title").textContent = audioHolderObject.title;
nicholas@2470:     }
nicholas@2538: 
nicholas@2701:     if (interfaceObj.title !== null) {
nicholas@2538:         document.getElementById("pageTitle").textContent = interfaceObj.title;
nicholas@2538:     }
nicholas@2538: 
n@2793:     if (interfaceObj.image !== undefined || audioHolderObject.audioElements.some(function (elem) {
n@2793:             return elem.image !== undefined;
n@2793:         })) {
nicholas@2781:         document.getElementById("testContent").insertBefore(interfaceContext.imageHolder.root, document.getElementById("slider"));
nicholas@2781:         interfaceContext.imageHolder.setImage(interfaceObj.image);
nicholas@2781:     }
nicholas@2781: 
nicholas@2538:     // Delete outside reference
nicholas@2538:     var outsideReferenceHolder = document.getElementById("outside-reference-holder");
nicholas@2395:     outsideReferenceHolder.innerHTML = "";
nicholas@2538: 
nicholas@2538:     var sliderBox = document.getElementById('slider-holder');
nicholas@2538:     sliderBox.innerHTML = "";
nicholas@2538: 
nicholas@2538:     var commentBoxPrefix = "Comment on track";
nicholas@2701:     if (interfaceObj.commentBoxPrefix !== undefined) {
nicholas@2538:         commentBoxPrefix = interfaceObj.commentBoxPrefix;
nicholas@2538:     }
nicholas@2538:     var loopPlayback = audioHolderObject.loop;
nicholas@2538: 
nicholas@2701:     var currentTestHolder = document.createElement('audioHolder');
nicholas@2538:     currentTestHolder.id = audioHolderObject.id;
nicholas@2538:     currentTestHolder.repeatCount = audioHolderObject.repeatCount;
nicholas@2538: 
nicholas@2538:     // Find all the audioElements from the audioHolder
nicholas@2538:     var index = 0;
nicholas@2607:     var interfaceScales = testState.currentStateMap.interfaces[0].scales;
nicholas@2623:     var labelType = audioHolderObject.label;
nicholas@2607:     if (labelType == "default") {
nicholas@2607:         labelType = "number";
nicholas@2607:     }
nicholas@2607:     $(audioHolderObject.audioElements).each(function (pageIndex, element) {
nicholas@2538:         // Find URL of track
nicholas@2538:         // In this jQuery loop, variable 'this' holds the current audioElement.
nicholas@2538: 
nicholas@2538:         var audioObject = audioEngineContext.newTrack(element);
nicholas@2538:         if (element.type == 'outside-reference') {
nicholas@2538:             // Construct outside reference;
nicholas@2538:             var orNode = new interfaceContext.outsideReferenceDOM(audioObject, index, outsideReferenceHolder);
nicholas@2538:             audioObject.bindInterface(orNode);
nicholas@2538:         } else {
nicholas@2538:             // Create a slider per track
n@2909:             var label = element.label || interfaceContext.getLabel(labelType, index, audioHolderObject.labelStart);
nicholas@2538:             var sliderObj = new sliderObject(audioObject, label);
nicholas@2538: 
nicholas@2538:             if (typeof audioHolderObject.initialPosition === "number") {
nicholas@2538:                 // Set the values
nicholas@2538:                 sliderObj.slider.value = audioHolderObject.initalPosition;
nicholas@2538:             } else {
nicholas@2538:                 // Distribute it randomnly
nicholas@2538:                 sliderObj.slider.value = Math.random();
nicholas@2538:             }
nicholas@2538:             sliderBox.appendChild(sliderObj.holder);
nicholas@2538:             audioObject.bindInterface(sliderObj);
nickjillings@2117:             interfaceContext.commentBoxes.createCommentBox(audioObject);
nicholas@2538:             index += 1;
nicholas@2538:         }
nicholas@2538: 
nicholas@2538:     });
nicholas@2538: 
nicholas@2623:     if (testState.currentStateMap.restrictMovement) {
nicholas@2623:         $(".track-slider-range").addClass("track-slider-range-disabled");
nicholas@2623:         $(".track-slider-range").each(function (i, e) {
nicholas@2701:             e.disabled = true;
nicholas@2623:         });
nicholas@2623:     }
nicholas@2623: 
nicholas@2538: 
nicholas@2650:     var interfaceOptions = interfaceObj.options;
n@3006:     var sortButton = document.getElementById("sort-fragments");
n@3006:     sortButton.style.visibility = "hidden";
nicholas@2701:     interfaceOptions.forEach(function (option) {
nicholas@2538:         if (option.type == "show") {
nicholas@2538:             switch (option.name) {
n@2407:                 case "playhead":
n@2407:                     var playbackHolder = document.getElementById('playback-holder');
nicholas@2701:                     if (playbackHolder === null) {
n@2407:                         playbackHolder = document.createElement('div');
n@2407:                         playbackHolder.style.width = "100%";
n@2407:                         playbackHolder.align = 'center';
n@2407:                         playbackHolder.appendChild(interfaceContext.playhead.object);
nicholas@2650:                         feedbackHolder.insertBefore(playbackHolder, feedbackHolder.firstElementChild);
n@2407:                     }
n@2407:                     break;
n@2407:                 case "page-count":
n@2407:                     var pagecountHolder = document.getElementById('page-count');
nicholas@2701:                     if (pagecountHolder === null) {
n@2407:                         pagecountHolder = document.createElement('div');
n@2407:                         pagecountHolder.id = 'page-count';
nicholas@2850:                         pagecountHolder.style.display = 'inline-block';
n@2407:                     }
nicholas@2538:                     pagecountHolder.innerHTML = '<span>Page ' + (testState.stateIndex + 1) + ' of ' + testState.stateMap.length + '</span>';
n@2407:                     var inject = document.getElementById('interface-buttons');
n@2407:                     inject.appendChild(pagecountHolder);
n@2407:                     break;
n@2407:                 case "volume":
nicholas@2701:                     if (document.getElementById('master-volume-holder') === null) {
n@2407:                         feedbackHolder.appendChild(interfaceContext.volume.object);
n@2407:                     }
n@2407:                     break;
n@2407:                 case "comments":
nicholas@2538:                     interfaceContext.commentBoxes.showCommentBoxes(feedbackHolder, true);
n@2407:                     break;
nicholas@2850:                 case "fragmentSort":
n@3006:                     var button = document.getElementById('sort-fragments');
n@3006:                     button.style.visibility = "visible";
nicholas@2850:                     break;
n@2407:             }
n@2407:         }
nicholas@2701:     });
nicholas@2538: 
nicholas@2538:     $(audioHolderObject.commentQuestions).each(function (index, element) {
nicholas@2538:         var node = interfaceContext.createCommentQuestion(element);
nicholas@2538:         feedbackHolder.appendChild(node.holder);
nicholas@2538:     });
nicholas@2538: 
nicholas@2538:     // Auto-align
nicholas@2538:     resizeWindow(null);
nickjillings@1341: }
nickjillings@1341: 
nicholas@2538: function sliderObject(audioObject, label) {
nicholas@2538:     // Constructs the slider object. We use the HTML5 slider object
nicholas@2623:     var page = testState.currentStateMap;
nicholas@2538:     this.parent = audioObject;
nicholas@2538:     this.holder = document.createElement('div');
nicholas@2538:     this.title = document.createElement('span');
nicholas@2538:     this.slider = document.createElement('input');
nicholas@2538:     this.play = document.createElement('button');
nicholas@2538: 
nicholas@2538:     this.holder.className = 'track-slider';
nicholas@2538:     this.holder.style.height = window.innerHeight - 200 + 'px';
nicholas@2538:     this.holder.appendChild(this.title);
nicholas@2538:     this.holder.appendChild(this.slider);
nicholas@2538:     this.holder.appendChild(this.play);
nicholas@2538:     this.holder.align = "center";
nicholas@2701:     if (label === 0) {
nicholas@2538:         this.holder.style.marginLeft = '0px';
nicholas@2538:     }
nicholas@2538:     this.holder.setAttribute('trackIndex', audioObject.id);
nicholas@2538: 
nicholas@2538:     this.title.textContent = label;
nicholas@2538:     this.title.style.width = "100%";
nicholas@2538:     this.title.style.float = "left";
nicholas@2538: 
nicholas@2538:     this.slider.type = "range";
nicholas@2538:     this.slider.className = "track-slider-range track-slider-not-moved";
nicholas@2538:     this.slider.min = "0";
nicholas@2538:     this.slider.max = "1";
nicholas@2538:     this.slider.step = "0.01";
nicholas@2538:     this.slider.setAttribute('orient', 'vertical');
nicholas@2538:     this.slider.style.height = window.innerHeight - 250 + 'px';
nicholas@2538:     this.slider.onchange = function () {
nicholas@2538:         var time = audioEngineContext.timer.getTestTime();
nicholas@2538:         var id = Number(this.parentNode.getAttribute('trackIndex'));
nicholas@2538:         audioEngineContext.audioObjects[id].metric.moved(time, this.value);
nicholas@2538:         console.log('slider ' + id + ' moved to ' + this.value + ' (' + time + ')');
nicholas@2538:         $(this).removeClass('track-slider-not-moved');
nicholas@2538:     };
nicholas@2538: 
nicholas@2538:     this.play.textContent = "Loading...";
nicholas@2538:     this.play.value = audioObject.id;
nicholas@2538:     this.play.style.float = "left";
nicholas@2538:     this.play.style.width = "100%";
nicholas@2538:     this.play.disabled = true;
nicholas@2538:     this.play.setAttribute("playstate", "ready");
nicholas@2538:     this.play.onclick = function (event) {
nicholas@2538:         var id = Number(event.currentTarget.value);
nicholas@2538:         //audioEngineContext.metric.sliderPlayed(id);
nicholas@2538:         if (event.currentTarget.getAttribute("playstate") == "ready") {
nicholas@2538:             audioEngineContext.play(id);
nicholas@2538:         } else if (event.currentTarget.getAttribute("playstate") == "playing") {
nicholas@2538:             audioEngineContext.stop();
nicholas@2538:         }
nicholas@2538:     };
nicholas@2538: 
nicholas@2538:     this.enable = function () {
nicholas@2538:         this.play.disabled = false;
nicholas@2538:         this.play.textContent = "Play";
nicholas@2538:         $(this.slider).removeClass('track-slider-disabled');
nicholas@2538:     };
nicholas@2538: 
nicholas@2538:     this.exportXMLDOM = function (audioObject) {
nicholas@2538:         // Called by the audioObject holding this element. Must be present
nicholas@2538:         var node = storage.document.createElement('value');
nicholas@2538:         node.textContent = this.slider.value;
n@2921:         var iname = testState.getCurrentTestPage().interfaces[0].name;
n@2921:         if (typeof iname == "string") {
n@2921:             node.setAttribute("interface-name", iname);
n@2921:         }
nicholas@2538:         return node;
nicholas@2538:     };
nicholas@2538:     this.startPlayback = function () {
nicholas@2623:         var self = this;
nickjillings@1360:         // Called when playback has begun
nicholas@2538:         this.play.setAttribute("playstate", "playing");
nickjillings@1360:         $(".track-slider").removeClass('track-slider-playing');
nicholas@2538:         $(this.holder).addClass('track-slider-playing');
nicholas@2726:         interfaceContext.commentBoxes.highlightById(audioObject.id);
nicholas@2538:         var outsideReference = document.getElementById('outside-reference');
nicholas@2701:         if (outsideReference !== null) {
nicholas@2538:             $(outsideReference).removeClass('track-slider-playing');
nicholas@2538:         }
nickjillings@1383:         this.play.textContent = "Stop";
nicholas@2623:         if (page.restrictMovement) {
nicholas@2623:             if (page.loop) {
nicholas@2623:                 $(this.slider).removeClass("track-slider-range-disabled");
nicholas@2623:                 this.slider.removeAttribute("disabled");
nicholas@2623:             } else {
nicholas@2623:                 $(".track-slider-range").addClass("track-slider-range-disabled");
nicholas@2623:                 $(this.slider).removeClass("track-slider-range-disabled");
nicholas@2623:                 $(".track-slider-range").each(function (i, m) {
nicholas@2623:                     if (m == self.slider) {
nicholas@2623:                         m.removeAttribute("disabled");
nicholas@2623:                     } else {
nicholas@2623:                         m.setAttribute("disabled", "true");
nicholas@2623:                     }
nicholas@2623:                 });
nicholas@2623:             }
nicholas@2623:         }
n@2793:         if (audioObject.specification.image !== undefined) {
n@2793:             interfaceContext.imageHolder.setImage(audioObject.specification.image);
n@2793:         }
nickjillings@1360:     };
nicholas@2538:     this.stopPlayback = function () {
nickjillings@1360:         // Called when playback has stopped. This gets called even if playback never started!
nicholas@2538:         this.play.setAttribute("playstate", "ready");
nickjillings@1360:         $(this.holder).removeClass('track-slider-playing');
nickjillings@1383:         this.play.textContent = "Play";
nicholas@2623:         if (page.restrictMovement && page.loop) {
nicholas@2623:             $(this.slider).addClass("track-slider-range-disabled");
nicholas@2623:             this.slider.setAttribute("disabled", "true");
nicholas@2623:         }
nicholas@2726:         var box = interfaceContext.commentBoxes.boxes.find(function (a) {
nicholas@2726:             return a.id === audioObject.id;
nicholas@2726:         });
nicholas@2726:         if (box) {
nicholas@2726:             box.highlight(false);
nicholas@2726:         }
n@2793:         if (audioObject.specification.parent.interfaces[0].image !== undefined) {
n@2793:             interfaceContext.imageHolder.setImage(audioObject.specification.parent.interfaces[0].image);
n@2793:         } else {
n@2793:             interfaceContext.imageHolder.setImage("");
n@2793:         }
nickjillings@1360:     };
nicholas@2538:     this.getValue = function () {
nicholas@2538:         return this.slider.value;
nicholas@2538:     };
nicholas@2538: 
nicholas@2881:     this.resize = function (event, height) {
nicholas@2881:         this.holder.style.height = height - 20 + 'px';
nicholas@2881:         this.slider.style.height = height - 70 + 'px';
nicholas@2538:     };
nicholas@2538:     this.updateLoading = function (progress) {
nicholas@2538:         progress = String(progress);
nicholas@2538:         progress = progress.substr(0, 5);
nicholas@2538:         this.play.textContent = "Loading: " + progress + "%";
nicholas@2538:     };
nicholas@2538: 
nicholas@2538:     if (this.parent.state == 1) {
nicholas@2538:         this.enable();
nicholas@2538:     }
nicholas@2538:     this.getPresentedId = function () {
nicholas@2538:         return this.title.textContent;
nicholas@2538:     };
nicholas@2538:     this.canMove = function () {
nicholas@2538:         return true;
nicholas@2538:     };
nicholas@2538:     this.error = function () {
nicholas@2538:         // audioObject has an error!!
nickjillings@2113:         this.playback.textContent = "Error";
nickjillings@2113:         $(this.playback).addClass("error-colour");
nicholas@2701:     };
nickjillings@1341: }
nickjillings@1341: 
nicholas@2538: function resizeWindow(event) {
nicholas@2538:     // Function called when the window has been resized.
nicholas@2538:     // MANDATORY FUNCTION
nicholas@2538: 
nicholas@2781:     var outsideRef = document.getElementById('outside-reference'),
nicholas@2881:         imageHeight = 0,
nicholas@2881:         minHeight = Math.max(Math.floor(window.screen.height * 0.33), 200),
nicholas@2881:         maxHeight = Math.floor(window.screen.height * 0.5);
nicholas@2781:     if (document.getElementById("imageController")) {
n@2791:         imageHeight = $(interfaceContext.imageHolder.root).height();
nicholas@2781:     }
nicholas@2701:     if (outsideRef !== null) {
nicholas@2538:         outsideRef.style.left = (window.innerWidth - 120) / 2 + 'px';
nicholas@2538:     }
nicholas@2538: 
nicholas@2538:     // Auto-align
nicholas@2538:     var numObj = document.getElementsByClassName('track-slider').length;
nicholas@2538:     var totalWidth = (numObj - 1) * 150 + 100;
nicholas@2538:     var diff = (window.innerWidth - totalWidth) / 2;
nicholas@2881:     var height = window.innerHeight - 180 - imageHeight;
nicholas@2881:     height = Math.min(height, maxHeight);
nicholas@2881:     height = Math.max(height, minHeight);
nicholas@2881:     document.getElementById('slider').style.height = height + 'px';
nicholas@2538:     if (diff <= 0) {
nicholas@2538:         diff = 0;
nicholas@2538:     }
nicholas@2538:     document.getElementById('slider-holder').style.marginLeft = diff + 'px';
nicholas@2538:     for (var i in audioEngineContext.audioObjects) {
nicholas@2538:         if (audioEngineContext.audioObjects[i].specification.type != 'outside-reference') {
nicholas@2881:             audioEngineContext.audioObjects[i].interfaceDOM.resize(event, height);
nicholas@2538:         }
nicholas@2538:     }
nicholas@2538:     document.getElementById('scale-holder').style.marginLeft = (diff - 100) + 'px';
nicholas@2881:     document.getElementById('scale-text-holder').style.height = height - 14 + 'px';
nicholas@2380:     // Cheers edge for making me delete a canvas every resize.
nicholas@2538:     var canvas = document.getElementById('scale-canvas');
nicholas@2380:     var new_canvas = document.createElement("canvas");
nicholas@2380:     new_canvas.id = 'scale-canvas';
nicholas@2380:     canvas.parentElement.appendChild(new_canvas);
nicholas@2380:     canvas.parentElement.removeChild(canvas);
nicholas@2538:     new_canvas.width = totalWidth;
nicholas@2881:     new_canvas.height = height - 14;
nicholas@2538:     drawScale();
nickjillings@1341: }
nickjillings@1341: 
nicholas@2538: function drawScale() {
nicholas@2538:     var interfaceObj = testState.currentStateMap.interfaces[0];
nicholas@2538:     var scales = testState.currentStateMap.interfaces[0].scales;
nicholas@3037:     var ticks = specification.interfaces.options.concat(interfaceObj.options).find(function (a) {
nicholas@3037:         return (a.type == "show" && a.name == "ticks");
nicholas@3037:     });
nicholas@3037:     if (ticks !== undefined) {
nicholas@3037:         ticks = true;
nicholas@3037:     } else {
nicholas@3037:         ticks = false;
nicholas@3037:     }
nicholas@2538:     scales = scales.sort(function (a, b) {
nicholas@2538:         return a.position - b.position;
nicholas@2538:     });
nicholas@2538:     var canvas = document.getElementById('scale-canvas');
nicholas@2538:     var ctx = canvas.getContext("2d");
nicholas@2538:     var height = canvas.height;
nicholas@2538:     var width = canvas.width;
nicholas@2538:     ctx.clearRect(0, 0, canvas.width, canvas.height);
nicholas@2538:     var draw_heights = [24, height - 34];
nicholas@2538:     var textHolder = document.getElementById('scale-text-holder');
nicholas@2538:     textHolder.innerHTML = "";
nicholas@2538:     var lastHeight = 0;
nicholas@2701:     scales.forEach(function (scale) {
nicholas@2538:         var posPercent = scale.position / 100.0;
nicholas@2538:         var posPix = (1 - posPercent) * (draw_heights[1] - draw_heights[0]) + draw_heights[0];
nicholas@3037:         if (ticks) {
nicholas@3037:             ctx.fillStyle = "#000000";
nicholas@3037:             ctx.setLineDash([1, 2]);
nicholas@3037:             ctx.moveTo(0, posPix);
nicholas@3037:             ctx.lineTo(width, posPix);
nicholas@3037:             ctx.stroke();
nicholas@3037:         }
nicholas@2538:         var text = document.createElement('div');
nicholas@2538:         text.align = "right";
nicholas@2538:         var textC = document.createElement('span');
nicholas@2538:         textC.textContent = scale.text;
nicholas@2538:         text.appendChild(textC);
nicholas@2538:         text.className = "scale-text";
nicholas@2538:         textHolder.appendChild(text);
nicholas@2538:         text.style.top = (posPix - 9) + 'px';
nicholas@2538:         lastHeight = posPix;
nicholas@2701:     });
nickjillings@1341: }
nickjillings@1341: 
n@3006: function buttonSortFragmentClick() {
n@3006:     var sortIndex = interfaceContext.sortFragmentsByScore();
n@3006:     var sliderBox = document.getElementById("slider-holder");
n@3006:     var nodes = audioEngineContext.audioObjects.filter(function (ao) {
n@3006:         return ao.specification.type !== "outside-reference";
n@3006:     });
n@3006:     var i;
n@3006:     nodes.forEach(function (ao) {
n@3006:         sliderBox.removeChild(ao.interfaceDOM.holder);
n@3006:     });
n@3006:     for (i = 0; i < nodes.length; i++) {
n@3006:         var j = sortIndex[i];
n@3006:         sliderBox.appendChild(nodes[j].interfaceDOM.holder);
n@3006:     }
n@3006: }
n@3006: 
nickjillings@1341: function buttonSubmitClick() // TODO: Only when all songs have been played!
nickjillings@1341: {
nicholas@2650:     var checks = testState.currentStateMap.interfaces[0].options,
nicholas@2650:         canContinue = true;
nickjillings@1341: 
nicholas@2538:     // Check that the anchor and reference objects are correctly placed
nicholas@2701:     if (interfaceContext.checkHiddenAnchor() === false) {
nicholas@2538:         return;
nicholas@2538:     }
nicholas@2701:     if (interfaceContext.checkHiddenReference() === false) {
nicholas@2538:         return;
nicholas@2538:     }
nicholas@2825:     if (interfaceContext.checkFragmentMinPlays() === false) {
nicholas@2825:         return;
nicholas@2825:     }
nicholas@3035:     if (interfaceContext.checkCommentQuestions() === false) {
nicholas@3035:         return;
nicholas@3035:     }
nicholas@2538: 
nicholas@2538:     for (var i = 0; i < checks.length; i++) {
nicholas@2701:         var checkState = true;
nicholas@2538:         if (checks[i].type == 'check') {
nicholas@2538:             switch (checks[i].name) {
nicholas@2538:                 case 'fragmentPlayed':
nicholas@2538:                     // Check if all fragments have been played
n@2790:                     checkState = interfaceContext.checkAllPlayed(checks[i].errorMessage);
nicholas@2538:                     break;
nicholas@2538:                 case 'fragmentFullPlayback':
nicholas@2538:                     // Check all fragments have been played to their full length
n@2790:                     checkState = interfaceContext.checkAllPlayed(checks[i].errorMessage);
nicholas@2538:                     console.log('NOTE: fragmentFullPlayback not currently implemented, performing check fragmentPlayed instead');
nicholas@2538:                     break;
nicholas@2538:                 case 'fragmentMoved':
nicholas@2538:                     // Check all fragment sliders have been moved.
n@2790:                     checkState = interfaceContext.checkAllMoved(checks[i].errorMessage);
nicholas@2538:                     break;
nicholas@2538:                 case 'fragmentComments':
nicholas@2538:                     // Check all fragment sliders have been moved.
n@2790:                     checkState = interfaceContext.checkAllCommented(checks[i].errorMessage);
nicholas@2538:                     break;
nicholas@2538:                 case 'scalerange':
nicholas@2538:                     // Check the scale has been used effectively
n@2790:                     checkState = interfaceContext.checkScaleRange(checks[i].errorMessage);
nicholas@2538:                     break;
nicholas@2538:                 default:
nicholas@2538:                     console.log("WARNING - Check option " + checks[i].check + " is not supported on this interface");
nicholas@2538:                     break;
nicholas@2538:             }
nicholas@2538: 
nicholas@2538:         }
nicholas@2701:         if (checkState === false) {
nicholas@2701:             canContinue = false;
nicholas@2538:             break;
nicholas@2538:         }
nicholas@2538:     }
nicholas@2538: 
nickjillings@1341:     if (canContinue) {
nicholas@2538:         if (audioEngineContext.status == 1) {
nicholas@2538:             var playback = document.getElementById('playback-button');
nicholas@2538:             playback.click();
nicholas@2538:             // This function is called when the submit button is clicked. Will check for any further tests to perform, or any post-test options
nicholas@2538:         } else {
nicholas@2701:             if (audioEngineContext.timer.testStarted === false) {
nicholas@2538:                 interfaceContext.lightbox.post("Message", 'You have not started the test! Please press start to begin the test!');
nicholas@2538:                 return;
nicholas@2538:             }
nicholas@2538:         }
nicholas@2538:         testState.advanceState();
nicholas@2538:     }
nickjillings@1341: }
nickjillings@1341: 
nicholas@2538: function pageXMLSave(store, pageSpecification) {
nicholas@2538:     // MANDATORY
nicholas@2538:     // Saves a specific test page
nicholas@2538:     // You can use this space to add any extra nodes to your XML <audioHolder> saves
nicholas@2538:     // Get the current <page> information in store (remember to appendChild your data to it)
nicholas@2538:     // pageSpecification is the current page node configuration
nicholas@2538:     // To create new XML nodes, use storage.document.createElement();
nickjillings@1341: }