Implement new renderNotificationDecoration from module API

package.json

@@ -81,7 +81,7 @@
     },
     "dependencies": {
         "@babel/runtime": "^7.12.5",
-        "@element-hq/element-web-module-api": "1.7.0",
+        "@element-hq/element-web-module-api": "1.8.0",
         "@element-hq/web-shared-components": "link:packages/shared-components",
         "@fontsource/fira-code": "^5",
         "@fontsource/inter": "^5",

src/modules/BuiltinsApi.tsx

@@ -10,6 +10,7 @@ import { type RoomViewProps, type BuiltinsApi } from "@element-hq/element-web-mo
 
 import { MatrixClientPeg } from "../MatrixClientPeg";
 import type { Room } from "matrix-js-sdk/src/matrix";
+import type { ModuleNotificationDecorationProps } from "./components/ModuleNotificationDecoration";
 
 interface RoomViewPropsWithRoomId extends RoomViewProps {
     /**
@@ -26,11 +27,14 @@ interface RoomAvatarProps {
 interface Components {
     roomView: React.ComponentType<RoomViewPropsWithRoomId>;
     roomAvatar: React.ComponentType<RoomAvatarProps>;
+    notificationDecoration: React.ComponentType<ModuleNotificationDecorationProps>;
 }
 
 export class ElementWebBuiltinsApi implements BuiltinsApi {
     private _roomView?: Components["roomView"];
     private _roomAvatar?: Components["roomAvatar"];
+    private _notificationDecoration?: Components["notificationDecoration"];
+
     /**
      * Sets the components used by the API.
      *
@@ -43,24 +47,30 @@ export class ElementWebBuiltinsApi implements BuiltinsApi {
     public setComponents(components: Components): void {
         this._roomView = components.roomView;
         this._roomAvatar = components.roomAvatar;
+        this._notificationDecoration = components.notificationDecoration;
     }
 
     public getRoomViewComponent(): React.ComponentType<RoomViewPropsWithRoomId> {
         if (!this._roomView) {
             throw new Error("No RoomView component has been set");
         }
-
         return this._roomView;
     }
 
     public getRoomAvatarComponent(): React.ComponentType<RoomAvatarProps> {
         if (!this._roomAvatar) {
             throw new Error("No RoomAvatar component has been set");
         }
-
         return this._roomAvatar;
     }
 
+    public getNotificationDecorationComponent(): React.ComponentType<ModuleNotificationDecorationProps> {
+        if (!this._notificationDecoration) {
+            throw new Error("No NotificationDecoration component has been set");
+        }
+        return this._notificationDecoration;
+    }
+
     public renderRoomView(roomId: string, props?: RoomViewProps): React.ReactNode {
         const Component = this.getRoomViewComponent();
         return <Component roomId={roomId} {...props} />;
@@ -74,4 +84,13 @@ export class ElementWebBuiltinsApi implements BuiltinsApi {
         const Component = this.getRoomAvatarComponent();
         return <Component room={room} size={size} />;
     }
+
+    public renderNotificationDecoration(roomId: string): React.ReactNode {
+        const room = MatrixClientPeg.safeGet().getRoom(roomId);
+        if (!room) {
+            throw new Error(`No room such room: ${roomId}`);
+        }
+        const Component = this.getNotificationDecorationComponent();
+        return <Component room={room} />;
+    }
 }

src/modules/components/ModuleNotificationDecoration.tsx

@@ -0,0 +1,29 @@
+/*
+Copyright 2025 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE files in the repository root for full details.
+*/
+import React, { useMemo } from "react";
+
+import type { Room } from "matrix-js-sdk/src/matrix";
+import { RoomNotificationStateStore } from "../../stores/notifications/RoomNotificationStateStore";
+import { useCall } from "../../hooks/useCall";
+import { NotificationDecoration } from "../../components/views/rooms/NotificationDecoration";
+
+export interface ModuleNotificationDecorationProps {
+    /**
+     * The room for which the decoration is rendered.
+     */
+    room: Room;
+}
+
+/**
+ * React component that takes a room as prop and renders {@link NotificationDecoration} with it.
+ * Used by the module API to render notification decoration without having to expose a bunch of stores.
+ */
+export const ModuleNotificationDecoration: React.FC<ModuleNotificationDecorationProps> = ({ room }) => {
+    const notificationState = useMemo(() => RoomNotificationStateStore.instance.getRoomState(room), [room]);
+    const call = useCall(room.roomId);
+    return <NotificationDecoration notificationState={notificationState} callType={call?.callType} />;
+};

src/vector/app.tsx

@@ -33,6 +33,7 @@ import { UserFriendlyError } from "../languageHandler";
 import { ModuleApi } from "../modules/Api";
 import { RoomView } from "../components/structures/RoomView";
 import RoomAvatar from "../components/views/avatars/RoomAvatar";
+import { ModuleNotificationDecoration } from "../modules/components/ModuleNotificationDecoration";
 
 logger.log(`Application is running in ${process.env.NODE_ENV} mode`);
 
@@ -58,7 +59,11 @@ function onTokenLoginCompleted(): void {
 export async function loadApp(fragParams: QueryDict, matrixChatRef: React.Ref<MatrixChat>): Promise<ReactElement> {
     // XXX: This lives here because certain components import so many things that importing it in a sensible place (eg.
     // the builtins module or init.tsx) causes a circular dependency.
-    ModuleApi.instance.builtins.setComponents({ roomView: RoomView, roomAvatar: RoomAvatar });
+    ModuleApi.instance.builtins.setComponents({
+        roomView: RoomView,
+        roomAvatar: RoomAvatar,
+        notificationDecoration: ModuleNotificationDecoration,
+    });
 
     initRouting();
     const platform = PlatformPeg.get();

test/unit-tests/modules/BuiltinsApi-test.tsx

@@ -44,10 +44,26 @@ describe("ElementWebBuiltinsApi", () => {
         expect(container).toHaveTextContent("50");
     });
 
+    it("returns rendered NotificationDecoration component", () => {
+        stubClient();
+        const builtinsApi = new ElementWebBuiltinsApi();
+        const NotificationDecoration = () => <div>notification decoration</div>;
+        builtinsApi.setComponents({
+            roomView: {},
+            roomAvatar: Avatar,
+            notificationDecoration: NotificationDecoration,
+        } as any);
+        const { container } = render(<> {builtinsApi.renderNotificationDecoration("!foo:m.org")}</>);
+        expect(container).toHaveTextContent("notification decoration");
+    });
+
     it("should throw error if called before components are set", () => {
         stubClient();
         const builtinsApi = new ElementWebBuiltinsApi();
         expect(() => builtinsApi.renderRoomAvatar("!foo:m.org")).toThrow("No RoomAvatar component has been set");
         expect(() => builtinsApi.renderRoomView("!foo:m.org")).toThrow("No RoomView component has been set");
+        expect(() => builtinsApi.renderNotificationDecoration("!foo:m.org")).toThrow(
+            "No NotificationDecoration component has been set",
+        );
     });
 });

test/unit-tests/modules/components/ModuleNotificationDecoration-test.tsx

@@ -0,0 +1,33 @@
+/*
+Copyright 2025 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE files in the repository root for full details.
+*/
+import React from "react";
+import { render, screen } from "jest-matrix-react";
+
+import type { Room } from "matrix-js-sdk/src/matrix";
+import { ModuleNotificationDecoration } from "../../../../src/modules/components/ModuleNotificationDecoration";
+import { mkStubRoom, stubClient } from "../../../test-utils";
+import { NotificationLevel } from "../../../../src/stores/notifications/NotificationLevel";
+import { RoomNotificationStateStore } from "../../../../src/stores/notifications/RoomNotificationStateStore";
+import { RoomNotificationState } from "../../../../src/stores/notifications/RoomNotificationState";
+
+class MockedNotificationState extends RoomNotificationState {
+    public constructor(room: Room, level: NotificationLevel, count: number) {
+        super(room, false);
+        this._level = level;
+        this._count = count;
+    }
+}
+
+it("Should be able to render component just with room as prop", () => {
+    const cli = stubClient();
+    const room = mkStubRoom("!foo:matrix.org", "Foo Room", cli);
+    jest.spyOn(RoomNotificationStateStore.instance, "getRoomState").mockReturnValue(
+        new MockedNotificationState(room, NotificationLevel.Notification, 5),
+    );
+    render(<ModuleNotificationDecoration room={room} />);
+    expect(screen.getByTestId("notification-decoration")).toBeInTheDocument();
+});

yarn.lock

@@ -1559,10 +1559,10 @@
   resolved "https://registry.yarnpkg.com/@element-hq/element-call-embedded/-/element-call-embedded-0.16.1.tgz#28bdbde426051cc2a3228a36e7196e0a254569d3"
   integrity sha512-g3v/QFuNy8YVRGrKC5SxjIYvgBh6biOHgejhJT2Jk/yjOOUEuP0y2PBaADm+suPD9BB/Vk1jPxFk2uEIpEzhpA==
 
-"@element-hq/element-web-module-api@1.7.0":
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/@element-hq/element-web-module-api/-/element-web-module-api-1.7.0.tgz#7657df25cc1e7075718af2c6ea8a4ebfaa9cfb2c"
-  integrity sha512-WhiJTmdETK8vvaYExqyhQ9rtLjxBv9PprWr6dCa1/1VRFSkfFZRlzy2P08nHX2YXpRMTpXb39SLeleR1dgLzow==
+"@element-hq/element-web-module-api@1.8.0":
+  version "1.8.0"
+  resolved "https://registry.yarnpkg.com/@element-hq/element-web-module-api/-/element-web-module-api-1.8.0.tgz#95aa4ec22609cf0f4a7f24274473af0645a16f2a"
+  integrity sha512-lMiDA9ubP3mZZupIMT8T3wS0riX30rYZj3pFpdP4cfZhkWZa3FJFStokAy5OnaHyENC7Px1cqkBGqilOWewY/A==
 
 "@element-hq/element-web-playwright-common@^2.0.0":
   version "2.0.0"
@@ -4151,7 +4151,7 @@
     classnames "^2.5.1"
     vaul "^1.0.0"
 
-"@vector-im/matrix-wysiwyg-wasm@link:../../../.cache/yarn/v6/npm-@vector-im-matrix-wysiwyg-2.40.0-53c9ca5ea907d91e4515da64f20a82e5586b882c-integrity/node_modules/bindings/wysiwyg-wasm":
+"@vector-im/matrix-wysiwyg-wasm@link:../../.cache/yarn/v6/npm-@vector-im-matrix-wysiwyg-2.40.0-53c9ca5ea907d91e4515da64f20a82e5586b882c-integrity/node_modules/bindings/wysiwyg-wasm":
   version "0.0.0"
   uid ""