Merge branch 'master' of https://github.com/browngraphicslab/Dash-Web into pdf_impl

1 files changed, 3 insertions, 4 deletions

diff --git a/src/client/util/DragManager.ts b/src/client/util/DragManager.ts
index 7f75a95f0..1e84a0db0 100644
--- a/src/client/util/DragManager.ts
+++ b/src/client/util/DragManager.ts
@@ -26,7 +26,7 @@ export function SetupDrag(_reference: React.RefObject<HTMLElement>, docFunc: ()
         // if (this.props.isSelected() || this.props.isTopMost) {
         if (e.button === 0) {
             e.stopPropagation();
-            if (e.shiftKey) {
+            if (e.shiftKey && CollectionDockingView.Instance) {
                 CollectionDockingView.Instance.StartOtherDrag([await docFunc()], e);
             } else {
                 document.addEventListener("pointermove", onRowMove);
@@ -264,7 +264,7 @@ export namespace DragManager {
             if (dragData instanceof DocumentDragData) {
                 dragData.userDropAction = e.ctrlKey || e.altKey ? "alias" : undefined;
             }
-            if (e.shiftKey) {
+            if (e.shiftKey && CollectionDockingView.Instance) {
                 AbortDrag();
                 CollectionDockingView.Instance.StartOtherDrag(docs, {
                     pageX: e.pageX,
@@ -279,8 +279,7 @@ export namespace DragManager {
             lastX = e.pageX;
             lastY = e.pageY;
             dragElements.map((dragElement, i) => (dragElement.style.transform =
-                `translate(${(xs[i] += moveX)}px, ${(ys[i] += moveY)}px) 
-                scale(${scaleXs[i]}, ${scaleYs[i]})`)
+                `translate(${(xs[i] += moveX)}px, ${(ys[i] += moveY)}px)  scale(${scaleXs[i]}, ${scaleYs[i]})`)
             );
         };