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

1 files changed, 9 insertions, 3 deletions

diff --git a/src/client/views/collections/CollectionDockingView.tsx b/src/client/views/collections/CollectionDockingView.tsx
index 69b9e77eb..5f8862c43 100644
--- a/src/client/views/collections/CollectionDockingView.tsx
+++ b/src/client/views/collections/CollectionDockingView.tsx
@@ -135,10 +135,11 @@ export class CollectionDockingView extends React.Component<SubCollectionViewProp
 
         var newContentItem = this._goldenLayout.root.layoutManager.createContentItem(newItemStackConfig, this._goldenLayout);
 
-        if (this._goldenLayout.root.contentItems[0].isRow) {
+        if (this._goldenLayout.root.contentItems.length === 0) {
+            this._goldenLayout.root.addChild(newContentItem);
+        } else if (this._goldenLayout.root.contentItems[0].isRow) {
             this._goldenLayout.root.contentItems[0].addChild(newContentItem);
-        }
-        else {
+        } else {
             var collayout = this._goldenLayout.root.contentItems[0];
             var newRow = collayout.layoutManager.createContentItem({ type: "row" }, this._goldenLayout);
             collayout.parent.replaceChild(collayout, newRow);
@@ -259,6 +260,11 @@ export class CollectionDockingView extends React.Component<SubCollectionViewProp
     @action
     onPointerDown = (e: React.PointerEvent): void => {
         this._isPointerDown = true;
+        let onPointerUp = action(() => {
+            window.removeEventListener("pointerup", onPointerUp)
+            this._isPointerDown = false
+        })
+        window.addEventListener("pointerup", onPointerUp);
         var className = (e.target as any).className;
         if (className === "messageCounter") {
             e.stopPropagation();