fix: add programmatic scrolling flag to avoid infinite scroll during …

…redraw (#238) (#240) * Added flag to programatic scrolling to avoid infinite scroll during redraw. (#238) * Update Core.js Co-authored-by: Yotam Berkowitz <[email protected]>
visjs · Jan 18, 2020 · 4a79838 · 4a79838
1 parent 6335799
commit 4a79838
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/lib/timeline/Core.js b/lib/timeline/Core.js
@@ -287,6 +287,12 @@ class Core {
      */
     function onMouseScrollSide(event) {
       if (!me.options.verticalScroll) return;
+
+      if (me._isProgramaticallyScrolled) {
+        me._isProgramaticallyScrolled = false;
+        return;
+      }
+
       event.preventDefault();
       if (me.isActive()) {
         const adjusted = -event.target.scrollTop;
@@ -1355,7 +1361,7 @@ class Core {
       this.dom.left.parentNode.scrollTop = -this.props.scrollTop;
       this.dom.right.parentNode.scrollTop = -this.props.scrollTop;
     }
-
+    this._isProgramaticallyScrolled = true;
     return this.props.scrollTop;
   }