From 93783de9aac156cbaf9ca0a602e0f5daab4ccb20 Mon Sep 17 00:00:00 2001
From: alvaro0555 <guillermo.alonso.garcia@gmail.com>
Date: Fri, 25 Oct 2013 21:36:27 +0200
Subject: [PATCH] trackpad horizontal and vertical scroll

---
 build/iscroll.js | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/build/iscroll.js b/build/iscroll.js
index d23dd2ea..0d46b9e8 100644
--- a/build/iscroll.js
+++ b/build/iscroll.js
@@ -242,6 +242,7 @@ function IScroll (el, options) {
 		resizeIndicator: true,
 
 		mouseWheelSpeed: 20,
+		mouseWheelScrollsHorizontally: true,
 
 		snapThreshold: 0.334,
 
@@ -977,9 +978,13 @@ IScroll.prototype = {
 		wheelDeltaX *= this.options.mouseWheelSpeed;
 		wheelDeltaY *= this.options.mouseWheelSpeed;
 
-		if ( !this.hasVerticalScroll ) {
+		if ( !this.hasHorizontalScroll ) {
+			wheelDeltaX = 0;
+		} else if ( !this.hasVerticalScroll && this.options.mouseWheelScrollsHorizontally ) {
 			wheelDeltaX = wheelDeltaY;
 			wheelDeltaY = 0;
+		} if ( !this.hasVerticalScroll ) {
+			wheelDeltaY = 0;
 		}
 
 		if ( this.options.snap ) {