fixed StructureRepresentation.getLoci

src/mol-geo/representation/structure/index.ts

@@ -11,7 +11,7 @@ import { RenderObject } from 'mol-gl/render-object';
 import { Representation, RepresentationProps } from '..';
 import { ColorTheme } from '../../theme';
 import { PickingId } from '../../util/picking';
-import { Loci, EmptyLoci } from 'mol-model/loci';
+import { Loci, EmptyLoci, isEmptyLoci } from 'mol-model/loci';
 import { MarkerAction } from '../../util/marker-data';
 
 export interface UnitsRepresentation<P> {
@@ -47,7 +47,7 @@ export function StructureRepresentation<P extends StructureProps>(reprCtor: () =
     function getLoci(pickingId: PickingId) {
         for (let i = 0, il = groupReprs.length; i < il; ++i) {
             const loc = groupReprs[i].repr.getLoci(pickingId)
-            if (loc) return loc
+            if (!isEmptyLoci(loc)) return loc
         }
         return EmptyLoci
     }

src/mol-view/label.ts

@@ -23,7 +23,7 @@ export function labelFirst(loci: Loci): string {
             if (e && e.indices[0] !== undefined) {
                 return elementLabel(Element.Location(e.unit, e.indices[0]))
             } else {
-                return 'Nothing'
+                return 'Unknown'
             }
         case 'link-loci':
             const bond = loci.links[0]
@@ -32,10 +32,10 @@ export function labelFirst(loci: Loci): string {
                 setElementLocation(elementLocB, bond.bUnit, bond.bIndex)
                 return `${elementLabel(elementLocA)} - ${elementLabel(elementLocB)}`
             } else {
-                return 'Nothing'
+                return 'Unknown'
             }
         case 'every-loci':
-            return 'Evertything'
+            return 'Everything'
         case 'empty-loci':
             return 'Nothing'
     }