Preserve authored projection content and contextual canvas selection

2026-09-24 22:40:21 -07:00
parent 715036e132
commit 0341bca846
24 changed files with 958 additions and 62 deletions
@@ -589,6 +589,17 @@ fn apply_command(
                .map(|d| d.id)
                .ok_or_else(missing)?;
            if source != *diagram {
+                let destination = &p.diagrams[diagram];
+                let element = p.diagrams[&source].nodes[node].element;
+                if destination.projection != ProjectionKind::Traceability
+                    && p.elements
+                        .get(&element)
+                        .is_none_or(|e| e.layer() != destination.layer)
+                {
+                    return Err(ModelError(
+                        "Move the placement to a view in its layer or a traceability view.".into(),
+                    ));
+                }
                let placement = p
                    .diagrams
                    .get_mut(&source)