fix: slot-promoted widgets not appearing/removing mid-session

The input-connected event was dispatched before the link was created, so the handler could not resolve the interior node via linkIds. Pass the node directly in the event detail.

Widget disconnect used removeWidgetByName which failed for PromotedWidgetSlots (name mismatch). Use ensureWidgetRemoved with the direct widget reference instead.

Amp-Thread-ID: https://ampcode.com/threads/T-019c5508-bf25-70e0-a48f-2663befeae98
Co-authored-by: Amp <amp@ampcode.com>

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

@@ -1,4 +1,4 @@
-import type { INodeInputSlot } from '@/lib/litegraph/src/litegraph'
+import type { INodeInputSlot, LGraphNode } from '@/lib/litegraph/src/litegraph'
 import type { SubgraphInput } from '@/lib/litegraph/src/subgraph/SubgraphInput'
 import type { IBaseWidget } from '@/lib/litegraph/src/types/widgets'
 
@@ -7,6 +7,7 @@ import type { LGraphEventMap } from './LGraphEventMap'
 export interface SubgraphInputEventMap extends LGraphEventMap {
   'input-connected': {
     input: INodeInputSlot
+    node: LGraphNode
     widget: IBaseWidget
   }
 

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

@@ -90,6 +90,7 @@ export class SubgraphInput extends SubgraphSlot {
       this._widget ??= inputWidget
       this.events.dispatch('input-connected', {
         input: slot,
+        node,
         widget: inputWidget
       })
     }

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

@@ -211,19 +211,12 @@ export class SubgraphNode extends LGraphNode implements BaseLGraph {
         const widget = subgraphInput._widget
         if (!widget) return
 
-        const widgetLocator = e.detail.input.widget
-        // Resolve the interior node from the subgraph input's link
-        const linkId = subgraphInput.linkIds[0]
-        const link = linkId != null ? this.subgraph.getLink(linkId) : undefined
-        const interiorNode = link?.resolve(this.subgraph).inputNode
-        if (!interiorNode) return
-
         this._setWidget(
           subgraphInput,
           input,
           widget,
-          widgetLocator,
-          interiorNode
+          e.detail.input.widget,
+          e.detail.node
         )
       },
       { signal }
@@ -236,7 +229,7 @@ export class SubgraphNode extends LGraphNode implements BaseLGraph {
         const connectedWidgets = subgraphInput.getConnectedWidgets()
         if (connectedWidgets.length > 0) return
 
-        this.removeWidgetByName(input.name)
+        if (input._widget) this.ensureWidgetRemoved(input._widget)
 
         delete input.pos
         delete input.widget