Added actions to register and unregister actions on FormStoresHandler.

Author: Martynas Žilinskas

packages/simplr-forms-core/__tests__/stores/form-stores-handler.test.ts

@@ -1,4 +1,6 @@
 import { FSHContainer, FormStoresHandlerClass } from "../../src/stores/form-stores-handler";
+import * as Actions from "../../src/actions/form-stores-handler-actions";
+import * as sinon from "Sinon";
 
 describe("Form stores handler", () => {
     it("returns next store unique formId", () => {
@@ -84,4 +86,26 @@ describe("Form stores handler", () => {
 
         expect(storesHandler.GetStore(generatedFormId)).toBeTruthy();
     });
+
+    it("emits register action when registering a new form", () => {
+        const storesHandler = new FormStoresHandlerClass();
+        const callbackSpy = sinon.spy();
+
+        storesHandler.addListener(Actions.FormRegistered, callbackSpy);
+        storesHandler.RegisterForm("some-kind-of-id");
+
+        expect(callbackSpy.called).toBe(true);
+    });
+
+    fit("emits unregister action when unregistering a form", () => {
+        const storesHandler = new FormStoresHandlerClass();
+        const formId = "form-id";
+        const callbackSpy = sinon.spy();
+
+        storesHandler.RegisterForm(formId);
+        storesHandler.addListener(Actions.FormUnregistered, callbackSpy);
+        storesHandler.UnregisterForm(formId);
+
+        expect(callbackSpy.called).toBe(true);
+    });
 });

packages/simplr-forms-core/src/actions/form-stores-handler-actions.ts

@@ -0,0 +1,15 @@
+export class FormRegistered {
+    constructor(private formId: string) { }
+
+    public get FormId() {
+        return this.formId;
+    }
+}
+
+export class FormUnregistered {
+    constructor(private formId: string) { }
+
+    public get FormId() {
+        return this.formId;
+    }
+}

packages/simplr-forms-core/src/stores/form-stores-handler.ts

@@ -1,11 +1,15 @@
 import * as Immutable from "immutable";
+import { ActionEmitter } from "action-emitter";
+
 import { FormStore } from "./form-store";
+import * as Actions from "../actions/form-stores-handler-actions";
 
-export class FormStoresHandlerClass {
+export class FormStoresHandlerClass extends ActionEmitter {
     private storesCount: number;
     private formStores: Immutable.Map<string, FormStore>;
 
     constructor() {
+        super();
         this.resetFormStores();
     }
 
@@ -65,6 +69,8 @@ export class FormStoresHandlerClass {
         // Add instance to formStores map by its id
         this.formStores = this.formStores.set(formId, storeInstance);
 
+        this.emit(new Actions.FormRegistered(formId));
+
         return formId;
     }
 
@@ -79,6 +85,7 @@ export class FormStoresHandlerClass {
         const store = this.formStores.get(formId);
         if (store != null) {
             this.formStores = this.formStores.delete(formId);
+            this.emit(new Actions.FormUnregistered(formId));
         }
     }