1 files changed, 4 insertions, 6 deletions
diff --git a/src/client/views/nodes/trails/PresElementBox.tsx b/src/client/views/nodes/trails/PresElementBox.tsx
index 19435d22c..b9951eaae 100644
--- a/src/client/views/nodes/trails/PresElementBox.tsx
+++ b/src/client/views/nodes/trails/PresElementBox.tsx
@@ -34,12 +34,10 @@ export class PresElementBox extends ViewBoxBaseComponent<FieldViewProps>() {
     _heightDisposer: IReactionDisposer | undefined;
 
     @observable _dragging = false;
-    // these fields are conditionally computed fields on the layout document that take this document as a parameter
-    @computed get indexInPres() { return Number(this.lookupField("indexInPres")); }  // the index field is where this document is in the presBox display list (since this value is different for each presentation element, the value can't be stored on the layout template which is used by all display elements)
-    @computed get collapsedHeight() { return Number(this.lookupField("presCollapsedHeight")); } // the collapsed height changes depending on the state of the presBox.  We could store this on the presentation element template if it's used by only one presentation - but if it's shared by multiple, then this value must be looked up
-    @computed get presStatus() { return StrCast(this.lookupField("presStatus")); }
-    @computed get itemIndex() { return NumCast(this.lookupField("_itemIndex")); }
-    @computed get presBox() { return Cast(this.lookupField("presBox"), Doc, null); }
+    @computed get indexInPres() { return DocListCast(this.presBox[StrCast(this.presBox.presFieldKey, "data")]).indexOf(this.rootDoc); }  // the index field is where this document is in the presBox display list (since this value is different for each presentation element, the value can't be stored on the layout template which is used by all display elements)
+    @computed get collapsedHeight() { return [CollectionViewType.Tree, CollectionViewType.Stacking].includes(this.presBox._viewType as any) ? 35 : 31; } // the collapsed height changes depending on the state of the presBox.  We could store this on the presentation element template if it's used by only one presentation - but if it's shared by multiple, then this value must be looked up
+    @computed get presStatus() { return this.presBox.presStatus; }
+    @computed get presBox() { return (this.props.DocumentView?.().props.treeViewDoc ?? this.props.ContainingCollectionDoc)!; }
     @computed get targetDoc() { return Cast(this.rootDoc.presentationTargetDoc, Doc, null) || this.rootDoc; }
 
     componentDidMount() {