Merge pull request impress#51 from OpenGrid/patch-1

impressive mouse wheel support added
dwiash · Jan 12, 2012 · 8b3c38a · 8b3c38a
2 parents 940a28b + 11e5ddc
commit 8b3c38a
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/js/impress.js b/js/impress.js
@@ -306,6 +306,12 @@
         }
     });
 
+    document.addEventListener("mousewheel", function( event ) {        
+        next = steps.indexOf( active ) - event.wheelDelta / Math.abs(event.wheelDelta);
+        next = next >= 0 ? steps[ next ] : steps[ steps.length-1 ];
+        select(next);
+    }, false); 
+
     var getElementFromUrl = function () {
         // get id from url # by removing `#` or `#/` from the beginning,
         // so both "fallback" `#slide-id` and "enhanced" `#/slide-id` will work