# HG changeset patch
# User Nicholas Jillings <n.g.r.jillings@se14.qmul.ac.uk>
# Date 1441894978 -3600
# Node ID 5aaf26e925fb6bf9c58ebb1b83105f8e788622e6
# Parent  a8db8084d32af5c01db2de06361db9a4c2d75d04
Fixing APE for Firefox builds

diff -r a8db8084d32a -r 5aaf26e925fb ape.js
--- a/ape.js	Thu Sep 10 13:16:16 2015 +0100
+++ b/ape.js	Thu Sep 10 15:22:58 2015 +0100
@@ -239,6 +239,8 @@
 	canvas.align = "left";
 	canvas.addEventListener('dragover',function(event){
 		event.preventDefault();
+		event.dataTransfer.effectAllowed = 'none';
+		event.dataTransfer.dropEffect = 'copy';
 		return false;
 	},false);
 	var sliderMargin = document.createAttribute('marginsize');
@@ -452,19 +454,29 @@
 	this.trackSliderObj.innerHTML = '<span>'+audioObject.id+'</span>';
 	this.trackSliderObj.draggable = true;
 	this.trackSliderObj.ondragend = dragEnd;
+	
+	this.trackSliderObj.ondragstart = function(event){
+		event.dataTransfer.setData('Text',null);
+	};
+	
+	this.trackSliderObj.ondrop = function(event)
+	{
+		if(event.stopPropagation) {event.stopPropagation();}
+		return false;
+	};
 
 	// Onclick, switch playback to that track
-	this.trackSliderObj.onclick = function() {
+	this.trackSliderObj.onclick = function(event) {
 		// Start the test on first click, that way timings are more accurate.
 		audioEngineContext.play();
 		if (audioEngineContext.audioObjectsReady) {
 			// Cannot continue to issue play command until audioObjects reported as ready!
 			// Get the track ID from the object ID
 			var element;
-			if (event.srcElement.nodeName == "SPAN") {
-				element = event.srcElement.parentNode;
+			if (event.currentTarget.nodeName == "SPAN") {
+				element = event.currentTarget.parentNode;
 			} else {
-				element = event.srcElement;
+				element = event.currentTarget;
 			}
 			var id = Number(element.attributes['trackIndex'].value);
 			//audioEngineContext.metric.sliderPlayed(id);
@@ -506,9 +518,11 @@
 	var marginSize = Number(slider.attributes['marginsize'].value);
 	var w = slider.style.width;
 	w = Number(w.substr(0,w.length-2));
-	var x = ev.x;
-	x += Math.abs(ev.view.screenLeft);
-	x = x % ev.view.outerWidth;
+	var x = ev.screenX;
+	
+	x += Math.abs(window.screenX);
+	x = x % window.outerWidth;
+	
 	if (x >= marginSize && x < w+marginSize) {
 		this.style.left = (x)+'px';
 	} else {
@@ -519,9 +533,9 @@
 		}
 	}
 	var time = audioEngineContext.timer.getTestTime();
-	var id = Number(ev.srcElement.getAttribute('trackindex'));
-	audioEngineContext.audioObjects[id].metric.moved(time,convSliderPosToRate(ev.srcElement));
-	console.log('slider '+id+' moved to '+convSliderPosToRate(ev.srcElement)+' ('+time+')');
+	var id = Number(ev.currentTarget.getAttribute('trackindex'));
+	audioEngineContext.audioObjects[id].metric.moved(time,convSliderPosToRate(ev.currentTarget));
+	console.log('slider '+id+' moved to '+convSliderPosToRate(ev.currentTarget)+' ('+time+')');
 }
 
 function buttonSubmitClick()