Optimize scrolling

Minimized layout requests by putting `scrollTop` calls to a throttled callback.
skhilko · Apr 25, 2015 · a410e26 · a410e26
1 parent b4ca77a
commit a410e26
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/src/scripts/main.js b/src/scripts/main.js
@@ -106,7 +106,6 @@ StickyHeaders.prototype.onHeaderActivate = function(ev) {
 };
 
 StickyHeaders.prototype.onScroll = function() {
-    this._latestKnownScrollTop = this.element.scrollTop;
     this._requestUpdate();
 };
 
@@ -118,7 +117,7 @@ StickyHeaders.prototype._requestUpdate = function() {
 };
 
 StickyHeaders.prototype.updateHeaders = function() {
-    var scrollTop = this._latestKnownScrollTop + this._listStyles.borderTopWidth;
+    var scrollTop = this.element.scrollTop + this._listStyles.borderTopWidth;
     var shiftAmount = 0;
 
     this.headers.forEach(function(header) {