1 files changed, 21 insertions, 12 deletions
diff --git a/public/assets/javascripts/rectangles/util/wheel.js b/public/assets/javascripts/rectangles/util/wheel.js
index 6836772..4155a70 100644
--- a/public/assets/javascripts/rectangles/util/wheel.js
+++ b/public/assets/javascripts/rectangles/util/wheel.js
@@ -3,8 +3,8 @@
 	
 		base.wheel = new wheel({
 			el: document.querySelector("#map"),
-			update: function(e, val, delta){
-				// do something with val
+			update: function(e, delta){
+				// do something with delta
 			},
 		})
 
@@ -13,7 +13,7 @@
 function wheel (opt) {
 	opt = defaults(opt, {
 		el: document,
-		fn: function(e, val, delta){},
+		update: function(e, delta){},
 		propagate: false,
 		locked: false,
 		reversible: true,
@@ -21,37 +21,46 @@ function wheel (opt) {
 		val: 0,
 	})
 
-	opt.el.addEventListener('mousewheel', onMouseWheel, false);
+	opt.el.addEventListener('wheel', onMouseWheel, false);
+  // opt.el.addEventListener('mousewheel', onMouseWheel, false);
 	opt.el.addEventListener('DOMMouseScroll', onMouseWheel, false);
 
 	function onMouseWheel (e) {
 		if (opt.locked) {
 			return
 		}
+
 		if (! opt.propagate) {
 			e.stopPropagation()
 			e.preventDefault()
 		}
 		
-		var delta = 0;
+		var deltaX = 0, deltaY = 0;
 		
 		// WebKit
-		if ( event.wheelDeltaY ) {
-			delta -= event.wheelDeltaY * opt.ratio
+		if ( event.deltaY ) {
+			deltaY -= event.deltaY * opt.ratio
+			deltaX -= event.deltaX * opt.ratio
+		}
+		else if ( event.wheelDeltaY ) {
+			deltaY -= event.wheelDeltaY * opt.ratio
+			deltaX -= event.wheelDeltaX * opt.ratio
 		}
 		// Opera / Explorer 9
 		else if ( event.wheelDelta ) {
-			delta -= event.wheelDelta * opt.ratio
+			deltaY -= event.wheelDelta * opt.ratio
 		}
 		// Firefox
 		else if ( event.detail ) {
-			delta += event.detail * 2
+			deltaY += event.detail * 2
 		}
-		if (! opt.reversible && delta < 0) return;
+		if (! opt.reversible && (deltaY < 0 && deltaX < 0)) return;
 		
-		opt.val = clamp(opt.val + delta, opt.min, opt.max)
+		// opt.val = clamp(opt.val + delta, opt.min, opt.max)
 		
-		opt.update(e, opt.val, delta)
+		// deltaX is also passed, but these values tend to be unusable
+		// try http://vvalls.com/assets/test/wheel.html with a trackpad
+		opt.update(e, deltaY, deltaX)
 	}
 
 	opt.lock = function(){ opt.locked = true }