1 files changed, 5 insertions, 7 deletions
diff --git a/src/client/views/collections/CollectionView.tsx b/src/client/views/collections/CollectionView.tsx
index 38e027fb3..8e84b59de 100644
--- a/src/client/views/collections/CollectionView.tsx
+++ b/src/client/views/collections/CollectionView.tsx
@@ -63,6 +63,7 @@ export enum CollectionViewType {
 }
 export interface CollectionViewProps extends FieldViewProps {
     isAnnotationOverlay?: boolean;  // is the collection an annotation overlay (eg an overlay on an image/video/etc)
+    isAnnotationOverlayScrollable?: boolean; // whether the annotation overlay can be vertically scrolled (just for tree views, currently)
     layoutEngine?: () => string;
     setPreviewCursor?: (func: (x: number, y: number, drag: boolean, hide: boolean) => void) => void;
 
@@ -125,8 +126,9 @@ export class CollectionView extends ViewBoxAnnotatableComponent<ViewBoxAnnotatab
     }
 
     screenToLocalTransform = () => this.props.renderDepth ? this.props.ScreenToLocalTransform() : this.props.ScreenToLocalTransform().scale(this.props.PanelWidth() / this.bodyPanelWidth());
-    private SubView = (type: CollectionViewType, props: SubCollectionViewProps) => {
+    private renderSubView = (type: CollectionViewType | undefined, props: SubCollectionViewProps) => {
         TraceMobx();
+        if (type === undefined) return null;
         switch (type) {
             default:
             case CollectionViewType.Freeform: return <CollectionFreeFormView key="collview" {...props} />;
@@ -246,17 +248,13 @@ export class CollectionView extends ViewBoxAnnotatableComponent<ViewBoxAnnotatab
     childLayoutTemplate = () => this.props.childLayoutTemplate?.() || Cast(this.rootDoc.childLayoutTemplate, Doc, null);
     @computed get childLayoutString() { return StrCast(this.rootDoc.childLayoutString); }
 
-
-    @observable _subView: any = undefined;
-
     isContentActive = (outsideReaction?: boolean) => {
-        return this.props.isContentActive() ? true : false;
+        return this.props.isContentActive();
     }
     render() {
         TraceMobx();
         const props: SubCollectionViewProps = {
             ...this.props,
-            SetSubView: action((subView: any) => this._subView = subView),
             addDocument: this.addDocument,
             moveDocument: this.moveDocument,
             removeDocument: this.removeDocument,
@@ -273,7 +271,7 @@ export class CollectionView extends ViewBoxAnnotatableComponent<ViewBoxAnnotatab
         return (<div className={"collectionView"} onContextMenu={this.onContextMenu}
             style={{ pointerEvents: this.props.layerProvider?.(this.rootDoc) === false ? "none" : undefined }}>
             {this.showIsTagged()}
-            {this.collectionViewType !== undefined ? this.SubView(this.collectionViewType, props) : (null)}
+            {this.renderSubView(this.collectionViewType, props)}
         </div>);
     }
 }