menu command api

front/src/Api/Events/ui/MenuItemClickedEvent.ts

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+import * as tg from "generic-type-guard";
+import { iframeListener } from '../../IframeListener';
+
+export const isMenuItemClickedEvent =
+    new tg.IsInterface().withProperties({
+        menuItem: tg.isString
+    }).get();
+/**
+ * A message sent from the game to the iFrame when a menu item is clicked.
+ */
+export type MenuItemClickedEvent = tg.GuardedType<typeof isMenuItemClickedEvent>;
+
+
+export function sendMenuClickedEvent(menuItem: string) {
+    iframeListener.postMessage({
+        'type': 'menuItemClicked',
+        'data': {
+            menuItem: menuItem,
+        } as MenuItemClickedEvent
+    });
+}

front/src/Api/Events/ui/MenuItemRegisterEvent.ts

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+import * as tg from "generic-type-guard";
+import { Subject } from 'rxjs';
+
+export const isMenuItemRegisterEvent =
+    new tg.IsInterface().withProperties({
+        menutItem: tg.isString
+    }).get();
+/**
+ * A message sent from the iFrame to the game to add a new menu item.
+ */
+export type MenuItemRegisterEvent = tg.GuardedType<typeof isMenuItemRegisterEvent>;
+
+export const isMenuItemRegisterIframeEvent =
+    new tg.IsInterface().withProperties({
+        type: tg.isSingletonString("registerMenuCommand"),
+        data: isMenuItemRegisterEvent
+    }).get();
+
+
+const _registerMenuCommandStream: Subject<string> = new Subject();
+export const registerMenuCommandStream = _registerMenuCommandStream.asObservable();
+
+export function handleMenuItemRegistrationEvent(event: MenuItemRegisterEvent) {
+    _registerMenuCommandStream.next(event.menutItem)
+}