delegate responsibility to representation provider

src/viewer/helpers/model.ts

@@ -24,8 +24,6 @@ export class ModelLoader {
             : await this.plugin.builders.data.download({ url: fileOrUrl, isBinary, label: props?.dataLabel });
 
         const hierarchy = await this.handleTrajectory<P, S>(data, format, props, matrix, reprProvider, params) as any;
-        const structureCell = StateObjectRef.resolveAndCheck(this.plugin.state.data, hierarchy.structure);
-        ModelExport.setStructureName(structureCell?.obj?.data, props?.dataLabel || '');
 
         return hierarchy;
     }
@@ -39,7 +37,7 @@ export class ModelLoader {
     private async handleTrajectory<P = any, S = {}>(
         data: any,
         format: BuiltInTrajectoryFormat,
-        props?: PresetProps,
+        props?: PresetProps & { dataLabel?: string },
         matrix?: Mat4,
         reprProvider?: TrajectoryHierarchyPresetProvider<P, S>,
         params?: P
@@ -63,6 +61,10 @@ export class ModelLoader {
                     .insert(StateTransforms.Model.TransformStructureConformation, params);
                 await this.plugin.runTask(this.plugin.state.data.updateTree(b));
             }
+
+            const structureCell = StateObjectRef.resolveAndCheck(this.plugin.state.data, selector?.structure);
+            structureCell?.obj?.data && ModelExport.setStructureName(structureCell?.obj?.data, props?.dataLabel || '');
+
             return selector;
         }
 

src/viewer/index.html

@@ -109,6 +109,18 @@
             }
 
             const examples = [
+                {   
+                    id: 'Export',
+                    info: 'Model export name',
+                    url: 'https://user-upload.rcsb.org/v1/download/34215a3d-8562-4a3c-aa7d-8679f1c8de08/1bkv_no_header.bcif',
+                    format: 'mmcif',
+                    isBinary: true,
+                    config: {
+                        props: {
+                            structureLabel: 'test'
+                        }
+                    }
+                },
                 {
                     id: '1CRN',
                     info: 'small: only polymer',