refactor event handling to consume base class for lifecycling

src/application/Context/State/Code/ApplicationCode.ts

@@ -4,13 +4,13 @@ import { ICodeChangedEvent } from './Event/ICodeChangedEvent';
 import { SelectedScript } from '@/application/Context/State/Selection/SelectedScript';
 import { IUserSelection } from '@/application/Context/State/Selection/IUserSelection';
 import { UserScriptGenerator } from './Generation/UserScriptGenerator';
-import { Signal } from '@/infrastructure/Events/Signal';
+import { EventSource } from '@/infrastructure/Events/EventSource';
 import { IApplicationCode } from './IApplicationCode';
 import { IUserScriptGenerator } from './Generation/IUserScriptGenerator';
 import { IScriptingDefinition } from '@/domain/IScriptingDefinition';
 
 export class ApplicationCode implements IApplicationCode {
-    public readonly changed = new Signal<ICodeChangedEvent>();
+    public readonly changed = new EventSource<ICodeChangedEvent>();
     public current: string;
 
     private scriptPositions = new Map<SelectedScript, CodePosition>();

src/application/Context/State/Code/IApplicationCode.ts

@@ -1,7 +1,7 @@
 import { ICodeChangedEvent } from './Event/ICodeChangedEvent';
-import { ISignal } from '@/infrastructure/Events/ISignal';
+import { IEventSource } from '@/infrastructure/Events/IEventSource';
 
 export interface IApplicationCode {
-    readonly changed: ISignal<ICodeChangedEvent>;
+    readonly changed: IEventSource<ICodeChangedEvent>;
     readonly current: string;
 }

src/application/Context/State/Filter/IUserFilter.ts

@@ -1,10 +1,10 @@
-import { ISignal } from '@/infrastructure/Events/ISignal';
+import { IEventSource } from '@/infrastructure/Events/IEventSource';
 import { IFilterResult } from './IFilterResult';
 
 export interface IUserFilter {
     readonly currentFilter: IFilterResult | undefined;
-    readonly filtered: ISignal<IFilterResult>;
-    readonly filterRemoved: ISignal<void>;
+    readonly filtered: IEventSource<IFilterResult>;
+    readonly filterRemoved: IEventSource<void>;
     setFilter(filter: string): void;
     removeFilter(): void;
 }

src/application/Context/State/Filter/UserFilter.ts

@@ -2,12 +2,12 @@ import { IScript } from '@/domain/IScript';
 import { FilterResult } from './FilterResult';
 import { IFilterResult } from './IFilterResult';
 import { IUserFilter } from './IUserFilter';
-import { Signal } from '@/infrastructure/Events/Signal';
+import { EventSource } from '@/infrastructure/Events/EventSource';
 import { ICategoryCollection } from '@/domain/ICategoryCollection';
 
 export class UserFilter implements IUserFilter {
-    public readonly filtered = new Signal<IFilterResult>();
-    public readonly filterRemoved = new Signal<void>();
+    public readonly filtered = new EventSource<IFilterResult>();
+    public readonly filterRemoved = new EventSource<void>();
     public currentFilter: IFilterResult | undefined;
 
     constructor(private collection: ICategoryCollection) {

src/application/Context/State/Selection/IUserSelection.ts

@@ -1,10 +1,10 @@
 import { SelectedScript } from './SelectedScript';
 import { IScript } from '@/domain/IScript';
 import { ICategory } from '@/domain/ICategory';
-import { ISignal } from '@/infrastructure/Events/ISignal';
+import { IEventSource } from '@/infrastructure/Events/IEventSource';
 
 export interface IUserSelection {
-    readonly changed: ISignal<ReadonlyArray<SelectedScript>>;
+    readonly changed: IEventSource<ReadonlyArray<SelectedScript>>;
     readonly selectedScripts: ReadonlyArray<SelectedScript>;
     readonly totalSelected: number;
     areAllSelected(category: ICategory): boolean;

src/application/Context/State/Selection/UserSelection.ts

@@ -2,13 +2,13 @@ import { SelectedScript } from './SelectedScript';
 import { IUserSelection } from './IUserSelection';
 import { InMemoryRepository } from '@/infrastructure/Repository/InMemoryRepository';
 import { IScript } from '@/domain/IScript';
-import { Signal } from '@/infrastructure/Events/Signal';
+import { EventSource } from '@/infrastructure/Events/EventSource';
 import { IRepository } from '@/infrastructure/Repository/IRepository';
 import { ICategory } from '@/domain/ICategory';
 import { ICategoryCollection } from '@/domain/ICategoryCollection';
 
 export class UserSelection implements IUserSelection {
-    public readonly changed = new Signal<ReadonlyArray<SelectedScript>>();
+    public readonly changed = new EventSource<ReadonlyArray<SelectedScript>>();
     private readonly scripts: IRepository<string, SelectedScript>;
 
     constructor(