Display optional indicator on subgraphNode inputs

src/lib/litegraph/src/infrastructure/SubgraphInputEventMap.ts

@@ -8,8 +8,8 @@ import type { LGraphEventMap } from './LGraphEventMap'
 export interface SubgraphInputEventMap extends LGraphEventMap {
   'input-connected': {
     input: INodeInputSlot
-    widget: IBaseWidget
-    node: LGraphNode
+    widget?: IBaseWidget
+    node?: LGraphNode
   }
 
   'input-disconnected': {

src/lib/litegraph/src/subgraph/SubgraphInput.ts

@@ -95,6 +95,8 @@ export class SubgraphInput extends SubgraphSlot {
         widget: inputWidget,
         node
       })
+    } else {
+      this.events.dispatch('input-connected', { input: slot })
     }
 
     const link = new LLink(

src/lib/litegraph/src/subgraph/SubgraphNode.ts

@@ -764,6 +764,8 @@ export class SubgraphNode extends LGraphNode implements BaseLGraph {
       'input-connected',
       (e) => {
         this._invalidatePromotedViewsCache()
+        input.shape = e.detail.input.shape
+        if (!e.detail.widget || !e.detail.node) return
 
         // `SubgraphInput.connect()` dispatches before appending to `linkIds`,
         // so resolve by current links would miss this new connection.
@@ -900,6 +902,9 @@ export class SubgraphNode extends LGraphNode implements BaseLGraph {
               name: slot.name,
               localized_name: slot.localized_name,
               label: slot.label,
+              shape: this.subgraph.links[slot.linkIds[0]]?.resolve(
+                this.subgraph
+              )?.input?.shape,
               type: slot.type,
               link: null
             },