Merge branch 'master' into data-visualization-sarah

1 files changed, 2 insertions, 0 deletions

diff --git a/src/client/views/InkControlPtHandles.tsx b/src/client/views/InkControlPtHandles.tsx
index 7dd57e04d..31b13d2c8 100644
--- a/src/client/views/InkControlPtHandles.tsx
+++ b/src/client/views/InkControlPtHandles.tsx
@@ -189,6 +189,7 @@ export class InkEndPtHandles extends React.Component<InkEndProps> {
     @observable _overStart: boolean = false;
     @observable _overEnd: boolean = false;
 
+    _throttle = 0; // need to throttle dragging since the position may change when the control points change.  this allows the stroke to settle so that we don't get increasingly bad jitter
     @action
     dragRotate = (e: React.PointerEvent, pt1: () => { X: number; Y: number }, pt2: () => { X: number; Y: number }) => {
         SnappingManager.SetIsDragging(true);
@@ -196,6 +197,7 @@ export class InkEndPtHandles extends React.Component<InkEndProps> {
             this,
             e,
             action(e => {
+                if (this._throttle++ % 2 !== 0) return false;
                 if (!this.props.inkView.controlUndo) this.props.inkView.controlUndo = UndoManager.StartBatch('stretch ink');
                 // compute stretch factor by finding scaling along axis between start and end points
                 const p1 = pt1();