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https://github.com/vector-im/element-web.git
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d0cddc5b66
* Refactor feeding of events to widgets This is a pure refactor with (hopefully) no behavior changes. * Feed events to widgets as they are decrypted (even if out of order) The code that feeds events to widgets tries to enforce that only events from the end of the timeline will be passed through. This is to prevent old, irrelevant events from being passed to widgets as the timeline is back-filled. However, since encrypted events need to be decrypted asynchronously, it's not possible to feed them to a widget in a strictly linear order without introducing some kind of blocking or unreliable delivery. This code has been dropping events when they're decrypted out of order, which we consider to be an undesirable behavior. The solution provided here is that, to reflect the asynchronous nature of decryption, encrypted events that arrive at the end of the timeline will be fed to a widget whenever they finish decrypting, even if this means feeding them out of order. For now we're not aware of any widgets that care about knowing the exact order of events in the timeline, but if such a need reveals itself later, we can explore adding ordering information to this part of the widget API. * Add braces to if
329 lines
14 KiB
TypeScript
329 lines
14 KiB
TypeScript
/*
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Copyright 2024 New Vector Ltd.
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Copyright 2022 The Matrix.org Foundation C.I.C
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SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
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Please see LICENSE files in the repository root for full details.
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*/
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import { mocked, MockedObject } from "jest-mock";
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import { last } from "lodash";
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import {
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MatrixEvent,
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MatrixClient,
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ClientEvent,
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EventTimeline,
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EventType,
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MatrixEventEvent,
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} from "matrix-js-sdk/src/matrix";
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import { ClientWidgetApi, WidgetApiFromWidgetAction } from "matrix-widget-api";
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import { waitFor } from "jest-matrix-react";
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import { stubClient, mkRoom, mkEvent } from "../../../test-utils";
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import { MatrixClientPeg } from "../../../../src/MatrixClientPeg";
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import { StopGapWidget } from "../../../../src/stores/widgets/StopGapWidget";
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import { ElementWidgetActions } from "../../../../src/stores/widgets/ElementWidgetActions";
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import { VoiceBroadcastInfoEventType, VoiceBroadcastRecording } from "../../../../src/voice-broadcast";
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import { SdkContextClass } from "../../../../src/contexts/SDKContext";
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import ActiveWidgetStore from "../../../../src/stores/ActiveWidgetStore";
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import SettingsStore from "../../../../src/settings/SettingsStore";
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jest.mock("matrix-widget-api/lib/ClientWidgetApi");
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describe("StopGapWidget", () => {
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let client: MockedObject<MatrixClient>;
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let widget: StopGapWidget;
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let messaging: MockedObject<ClientWidgetApi>;
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beforeEach(() => {
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stubClient();
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client = mocked(MatrixClientPeg.safeGet());
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widget = new StopGapWidget({
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app: {
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id: "test",
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creatorUserId: "@alice:example.org",
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type: "example",
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url: "https://example.org?user-id=$matrix_user_id&device-id=$org.matrix.msc3819.matrix_device_id&base-url=$org.matrix.msc4039.matrix_base_url&theme=$org.matrix.msc2873.client_theme",
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roomId: "!1:example.org",
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},
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room: mkRoom(client, "!1:example.org"),
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userId: "@alice:example.org",
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creatorUserId: "@alice:example.org",
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waitForIframeLoad: true,
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userWidget: false,
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});
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// Start messaging without an iframe, since ClientWidgetApi is mocked
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widget.startMessaging(null as unknown as HTMLIFrameElement);
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messaging = mocked(last(mocked(ClientWidgetApi).mock.instances)!);
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});
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afterEach(() => {
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widget.stopMessaging();
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});
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it("should replace parameters in widget url template", () => {
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const originGetValue = SettingsStore.getValue;
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const spy = jest.spyOn(SettingsStore, "getValue").mockImplementation((setting) => {
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if (setting === "theme") return "my-theme-for-testing";
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return originGetValue(setting);
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});
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expect(widget.embedUrl).toBe(
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"https://example.org/?user-id=%40userId%3Amatrix.org&device-id=ABCDEFGHI&base-url=https%3A%2F%2Fmatrix-client.matrix.org&theme=my-theme-for-testing&widgetId=test&parentUrl=http%3A%2F%2Flocalhost%2F",
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);
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spy.mockClear();
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});
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it("feeds incoming to-device messages to the widget", async () => {
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const event = mkEvent({
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event: true,
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type: "org.example.foo",
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user: "@alice:example.org",
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content: { hello: "world" },
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});
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client.emit(ClientEvent.ToDeviceEvent, event);
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await Promise.resolve(); // flush promises
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expect(messaging.feedToDevice).toHaveBeenCalledWith(event.getEffectiveEvent(), false);
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});
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describe("feed event", () => {
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let event1: MatrixEvent;
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let event2: MatrixEvent;
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beforeEach(() => {
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event1 = mkEvent({
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event: true,
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id: "$event-id1",
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type: "org.example.foo",
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user: "@alice:example.org",
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content: { hello: "world" },
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room: "!1:example.org",
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});
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event2 = mkEvent({
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event: true,
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id: "$event-id2",
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type: "org.example.foo",
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user: "@alice:example.org",
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content: { hello: "world" },
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room: "!1:example.org",
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});
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const room = mkRoom(client, "!1:example.org");
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client.getRoom.mockImplementation((roomId) => (roomId === "!1:example.org" ? room : null));
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room.getLiveTimeline.mockReturnValue({
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getEvents: (): MatrixEvent[] => [event1, event2],
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} as unknown as EventTimeline);
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messaging.feedEvent.mockResolvedValue();
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});
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it("feeds incoming event to the widget", async () => {
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client.emit(ClientEvent.Event, event1);
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expect(messaging.feedEvent).toHaveBeenCalledWith(event1.getEffectiveEvent(), "!1:example.org");
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client.emit(ClientEvent.Event, event2);
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expect(messaging.feedEvent).toHaveBeenCalledTimes(2);
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expect(messaging.feedEvent).toHaveBeenLastCalledWith(event2.getEffectiveEvent(), "!1:example.org");
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});
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it("should not feed incoming event to the widget if seen already", async () => {
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client.emit(ClientEvent.Event, event1);
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expect(messaging.feedEvent).toHaveBeenCalledWith(event1.getEffectiveEvent(), "!1:example.org");
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client.emit(ClientEvent.Event, event2);
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expect(messaging.feedEvent).toHaveBeenCalledTimes(2);
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expect(messaging.feedEvent).toHaveBeenLastCalledWith(event2.getEffectiveEvent(), "!1:example.org");
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client.emit(ClientEvent.Event, event1);
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expect(messaging.feedEvent).toHaveBeenCalledTimes(2);
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expect(messaging.feedEvent).toHaveBeenLastCalledWith(event2.getEffectiveEvent(), "!1:example.org");
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});
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it("feeds decrypted events asynchronously", async () => {
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const event1Encrypted = new MatrixEvent({
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event_id: event1.getId(),
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type: EventType.RoomMessageEncrypted,
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sender: event1.sender?.userId,
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room_id: event1.getRoomId(),
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content: {},
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});
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const decryptingSpy1 = jest.spyOn(event1Encrypted, "isBeingDecrypted").mockReturnValue(true);
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client.emit(ClientEvent.Event, event1Encrypted);
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const event2Encrypted = new MatrixEvent({
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event_id: event2.getId(),
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type: EventType.RoomMessageEncrypted,
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sender: event2.sender?.userId,
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room_id: event2.getRoomId(),
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content: {},
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});
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const decryptingSpy2 = jest.spyOn(event2Encrypted, "isBeingDecrypted").mockReturnValue(true);
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client.emit(ClientEvent.Event, event2Encrypted);
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expect(messaging.feedEvent).not.toHaveBeenCalled();
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// "Decrypt" the events, but in reverse order; first event 2…
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event2Encrypted.event.type = event2.getType();
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event2Encrypted.event.content = event2.getContent();
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decryptingSpy2.mockReturnValue(false);
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client.emit(MatrixEventEvent.Decrypted, event2Encrypted);
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expect(messaging.feedEvent).toHaveBeenCalledTimes(1);
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expect(messaging.feedEvent).toHaveBeenLastCalledWith(event2Encrypted.getEffectiveEvent(), "!1:example.org");
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// …then event 1
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event1Encrypted.event.type = event1.getType();
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event1Encrypted.event.content = event1.getContent();
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decryptingSpy1.mockReturnValue(false);
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client.emit(MatrixEventEvent.Decrypted, event1Encrypted);
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// The events should be fed in that same order so that event 2
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// doesn't have to be blocked on the decryption of event 1 (or
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// worse, dropped)
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expect(messaging.feedEvent).toHaveBeenCalledTimes(2);
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expect(messaging.feedEvent).toHaveBeenLastCalledWith(event1Encrypted.getEffectiveEvent(), "!1:example.org");
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});
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it("should not feed incoming event if not in timeline", () => {
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const event = mkEvent({
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event: true,
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id: "$event-id",
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type: "org.example.foo",
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user: "@alice:example.org",
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content: {
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hello: "world",
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},
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room: "!1:example.org",
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});
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client.emit(ClientEvent.Event, event);
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expect(messaging.feedEvent).toHaveBeenCalledWith(event.getEffectiveEvent(), "!1:example.org");
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});
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it("feeds incoming event that is not in timeline but relates to unknown parent to the widget", async () => {
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const event = mkEvent({
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event: true,
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id: "$event-idRelation",
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type: "org.example.foo",
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user: "@alice:example.org",
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content: {
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"hello": "world",
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"m.relates_to": {
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event_id: "$unknown-parent",
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rel_type: "m.reference",
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},
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},
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room: "!1:example.org",
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});
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client.emit(ClientEvent.Event, event1);
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expect(messaging.feedEvent).toHaveBeenCalledWith(event1.getEffectiveEvent(), "!1:example.org");
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client.emit(ClientEvent.Event, event);
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expect(messaging.feedEvent).toHaveBeenCalledTimes(2);
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expect(messaging.feedEvent).toHaveBeenLastCalledWith(event.getEffectiveEvent(), "!1:example.org");
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client.emit(ClientEvent.Event, event1);
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expect(messaging.feedEvent).toHaveBeenCalledTimes(2);
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expect(messaging.feedEvent).toHaveBeenLastCalledWith(event.getEffectiveEvent(), "!1:example.org");
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});
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});
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describe("when there is a voice broadcast recording", () => {
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let voiceBroadcastInfoEvent: MatrixEvent;
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let voiceBroadcastRecording: VoiceBroadcastRecording;
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beforeEach(() => {
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voiceBroadcastInfoEvent = mkEvent({
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event: true,
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room: client.getRoom("x")?.roomId,
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user: client.getUserId()!,
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type: VoiceBroadcastInfoEventType,
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content: {},
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});
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voiceBroadcastRecording = new VoiceBroadcastRecording(voiceBroadcastInfoEvent, client);
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jest.spyOn(voiceBroadcastRecording, "pause");
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jest.spyOn(SdkContextClass.instance.voiceBroadcastRecordingsStore, "getCurrent").mockReturnValue(
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voiceBroadcastRecording,
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);
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});
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describe(`and receiving a action:${ElementWidgetActions.JoinCall} message`, () => {
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beforeEach(async () => {
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messaging.on.mock.calls.find(([event, listener]) => {
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if (event === `action:${ElementWidgetActions.JoinCall}`) {
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listener();
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return true;
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}
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});
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});
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it("should pause the current voice broadcast recording", () => {
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expect(voiceBroadcastRecording.pause).toHaveBeenCalled();
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});
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});
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});
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});
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describe("StopGapWidget with stickyPromise", () => {
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let client: MockedObject<MatrixClient>;
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let widget: StopGapWidget;
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let messaging: MockedObject<ClientWidgetApi>;
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beforeEach(() => {
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stubClient();
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client = mocked(MatrixClientPeg.safeGet());
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});
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afterEach(() => {
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widget.stopMessaging();
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});
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it("should wait for the sticky promise to resolve before starting messaging", async () => {
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jest.useFakeTimers();
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const getStickyPromise = async () => {
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return new Promise<void>((resolve) => {
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setTimeout(() => {
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resolve();
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}, 1000);
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});
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};
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widget = new StopGapWidget({
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app: {
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id: "test",
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creatorUserId: "@alice:example.org",
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type: "example",
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url: "https://example.org?user-id=$matrix_user_id&device-id=$org.matrix.msc3819.matrix_device_id&base-url=$org.matrix.msc4039.matrix_base_url",
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roomId: "!1:example.org",
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},
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room: mkRoom(client, "!1:example.org"),
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userId: "@alice:example.org",
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creatorUserId: "@alice:example.org",
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waitForIframeLoad: true,
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userWidget: false,
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stickyPromise: getStickyPromise,
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});
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const setPersistenceSpy = jest.spyOn(ActiveWidgetStore.instance, "setWidgetPersistence");
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// Start messaging without an iframe, since ClientWidgetApi is mocked
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widget.startMessaging(null as unknown as HTMLIFrameElement);
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const emitSticky = async () => {
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messaging = mocked(last(mocked(ClientWidgetApi).mock.instances)!);
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messaging?.hasCapability.mockReturnValue(true);
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// messaging.transport.reply will be called but transport is undefined in this test environment
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// This just makes sure the call doesn't throw
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Object.defineProperty(messaging, "transport", { value: { reply: () => {} } });
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messaging.on.mock.calls.find(([event, listener]) => {
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if (event === `action:${WidgetApiFromWidgetAction.UpdateAlwaysOnScreen}`) {
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listener({ preventDefault: () => {}, detail: { data: { value: true } } });
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return true;
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}
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});
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};
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await emitSticky();
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expect(setPersistenceSpy).not.toHaveBeenCalled();
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// Advance the fake timer so that the sticky promise resolves
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jest.runAllTimers();
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// Use a real timer and wait for the next tick so the sticky promise can resolve
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jest.useRealTimers();
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waitFor(() => expect(setPersistenceSpy).toHaveBeenCalled(), { interval: 5 });
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});
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});
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