Add Loading.showForever() option

Author: ChiriVulpes

src/component/Loading.ts

@@ -22,6 +22,7 @@ export interface LoadingExtensions extends Loading.LoadedSlotExtensions {
 	readonly errorIcon: Component
 	readonly errorText: Component
 	readonly loaded: State<boolean>
+	showForever (): this
 	set<T> (state: State.Async<T, StringApplicatorSource>, initialiser: (slot: Loading.LoadedSlot, value: T) => unknown): this
 	set<T> (
 		load: (signal: AbortSignal, setProgress: (progress: number | null, details?: StringApplicatorSource) => void) => Promise<T>,
@@ -70,6 +71,9 @@ const Loading = Component((component): Loading => {
 				refresh?.()
 				return this
 			},
+			showForever () {
+				return this.set(State.Async(State.Owner.create(), async () => { await new Promise(resolve => { }) }), () => { })
+			},
 			set (stateIn, initialiser) {
 				owner?.remove(); owner = State.Owner.create()