From b0b6c756295cefb66b93a5f2d807eab2e43eb8a4 Mon Sep 17 00:00:00 2001
From: Hakim El Hattab
Date: Sun, 16 Jun 2013 19:55:50 -0400
Subject: mouse wheel tweaks (closes #454)

---
 js/reveal.js | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

(limited to 'js/reveal.js')

diff --git a/js/reveal.js b/js/reveal.js
index e7788c2..8015244 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -126,7 +126,7 @@ var Reveal = (function(){
 								'transform' in document.body.style,
 
 		// Throttles mouse wheel navigation
-		mouseWheelTimeout = 0,
+		lastMouseWheelStep = 0,
 
 		// An interval used to automatically move on to the next slide
 		autoSlideTimeout = 0,
@@ -2335,9 +2335,10 @@ var Reveal = (function(){
 	 */
 	function onDocumentMouseScroll( event ) {
 
-		clearTimeout( mouseWheelTimeout );
+		if( Date.now() - lastMouseWheelStep > 600 ) {
+
+			lastMouseWheelStep = Date.now();
 
-		mouseWheelTimeout = setTimeout( function() {
 			var delta = event.detail || -event.wheelDelta;
 			if( delta > 0 ) {
 				navigateNext();
@@ -2345,7 +2346,8 @@ var Reveal = (function(){
 			else {
 				navigatePrev();
 			}
-		}, 100 );
+
+		}
 
 	}
 
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