[TS] Improve types and (#1043)

src/types/events.ts

@@ -4,8 +4,7 @@
 
 import type { LGraphGroup } from "../LGraphGroup"
 import type { LGraphNode } from "../LGraphNode"
-import type { ConnectingLink, LinkReleaseContextExtended } from "../litegraph"
-import type { IWidget } from "./widgets"
+import type { LinkReleaseContextExtended } from "../litegraph"
 
 /** For Canvas*Event - adds graph space co-ordinates (property names are shipped) */
 export interface ICanvasPosition {
@@ -57,12 +56,9 @@ export interface CanvasDragEvent extends
 
 export type CanvasEventDetail =
   | GenericEventDetail
-  | DragggingCanvasEventDetail
-  | ReadOnlyEventDetail
   | GroupDoubleClickEventDetail
   | NodeDoubleClickEventDetail
   | EmptyDoubleClickEventDetail
-  | ConnectingWidgetLinkEventDetail
   | EmptyReleaseEventDetail
 
 export interface GenericEventDetail {
@@ -78,13 +74,6 @@ export interface EmptyReleaseEventDetail extends OriginalEvent {
   linkReleaseContext: LinkReleaseContextExtended
 }
 
-export interface ConnectingWidgetLinkEventDetail {
-  subType: "connectingWidgetLink"
-  link: ConnectingLink
-  node: LGraphNode
-  widget: IWidget
-}
-
 export interface EmptyDoubleClickEventDetail extends OriginalEvent {
   subType: "empty-double-click"
 }
@@ -98,13 +87,3 @@ export interface NodeDoubleClickEventDetail extends OriginalEvent {
   subType: "node-double-click"
   node: LGraphNode
 }
-
-export interface DragggingCanvasEventDetail {
-  subType: "dragging-canvas"
-  draggingCanvas: boolean
-}
-
-export interface ReadOnlyEventDetail {
-  subType: "read-only"
-  readOnly: boolean
-}

src/types/serialisation.ts

@@ -34,7 +34,7 @@ export interface BaseExportedGraph {
   /** Unique graph ID.  Automatically generated if not provided. */
   id: UUID
   revision: number
-  config: LGraphConfig
+  config?: LGraphConfig
   /** Details of the appearance and location of subgraphs shown in this graph. Similar to */
   subgraphs?: ExportedSubgraphInstance[]
   /** Definitions of re-usable objects that are referenced elsewhere in this exported graph. */
@@ -161,7 +161,7 @@ export interface ISerialisedGroup {
   title: string
   bounding: number[]
   color?: string
-  font_size: number
+  font_size?: number
   flags?: IGraphGroupFlags
 }
 

src/types/utility.ts

@@ -0,0 +1,13 @@
+/**
+ * General-purpose, TypeScript utility types.
+ */
+
+/** {@link Pick} only properties that evaluate to `never`. */
+export type PickNevers<T> = {
+  [K in keyof T as T[K] extends never ? K : never]: T[K]
+}
+
+/** {@link Omit} all properties that evaluate to `never`. */
+export type NeverNever<T> = {
+  [K in keyof T as T[K] extends never ? never : K]: T[K]
+}