Add LGraphNode.getExtraSlotMenuOptions hook (#522)

src/LGraphCanvas.ts

@@ -7393,6 +7393,10 @@ export class LGraphCanvas implements ConnectionColorContext {
         }
         if (!_slot.nameLocked)
           menu_info.push({ content: "Rename Slot", slot: slot })
+
+        if (node.getExtraSlotMenuOptions) {
+          menu_info.push(...node.getExtraSlotMenuOptions(slot))
+        }
       }
       // @ts-expect-error Slot type can be number and has number checks
       options.title = (slot.input ? slot.input.type : slot.output.type) || "*"

src/LGraphNode.ts

@@ -458,7 +458,15 @@ export class LGraphNode implements Positionable, IPinnable {
     canvasElement: HTMLCanvasElement,
   ): void
   onMouseLeave?(this: LGraphNode, e: CanvasMouseEvent): void
+  /**
+   * Override the default slot menu options.
+   */
   getSlotMenuOptions?(this: LGraphNode, slot: IFoundSlot): IContextMenuValue[]
+  /**
+   * Add extra menu options to the slot context menu.
+   */
+  getExtraSlotMenuOptions?(this: LGraphNode, slot: IFoundSlot): IContextMenuValue[]
+
   // FIXME: Re-typing
   onDropItem?(this: LGraphNode, event: Event): boolean
   onDropData?(