Fix: Video Room Chat Header Button Removed

package.json

@@ -70,7 +70,7 @@
         "@matrix-org/spec": "^1.7.0",
         "@sentry/browser": "^7.0.0",
         "@testing-library/react-hooks": "^8.0.1",
-        "@vector-im/compound-design-tokens": "^0.0.7",
+        "@vector-im/compound-design-tokens": "^0.1.0",
         "@vector-im/compound-web": "0.8.1",
         "@zxcvbn-ts/core": "^3.0.4",
         "@zxcvbn-ts/language-common": "^3.0.4",

src/components/views/rooms/RoomHeader.tsx

@@ -50,6 +50,7 @@ import { formatCount } from "../../../utils/FormattingUtils";
 import RightPanelStore from "../../../stores/right-panel/RightPanelStore";
 import { Linkify, topicToHtml } from "../../../HtmlUtils";
 import PosthogTrackers from "../../../PosthogTrackers";
+import { VideoRoomChatButton } from "./RoomHeader/VideoRoomChatButton";
 
 /**
  * A helper to transform a notification color to the what the Compound Icon Button
@@ -215,6 +216,9 @@ export default function RoomHeader({
                     </Tooltip>
                 )}
 
+                {/* Renders nothing when room is not a video room */}
+                <VideoRoomChatButton room={room} />
+
                 <Tooltip label={_t("common|threads")}>
                     <IconButton
                         indicator={notificationColorToIndicator(threadNotifications)}

src/components/views/rooms/RoomHeader/VideoRoomChatButton.tsx

@@ -0,0 +1,75 @@
+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React, { useContext } from "react";
+import { Icon as ChatIcon } from "@vector-im/compound-design-tokens/icons/chat-solid.svg";
+import { Room } from "matrix-js-sdk/src/matrix";
+import { IconButton, Tooltip } from "@vector-im/compound-web";
+
+import { isVideoRoom as calcIsVideoRoom } from "../../../../utils/video-rooms";
+import { _t } from "../../../../languageHandler";
+import { useEventEmitterState } from "../../../../hooks/useEventEmitter";
+import { NotificationStateEvents } from "../../../../stores/notifications/NotificationState";
+import { NotificationColor } from "../../../../stores/notifications/NotificationColor";
+import { RightPanelPhases } from "../../../../stores/right-panel/RightPanelStorePhases";
+import { SDKContext } from "../../../../contexts/SDKContext";
+import { ButtonEvent } from "../../elements/AccessibleButton";
+
+/**
+ * Display a button to toggle timeline for video rooms
+ * @param room
+ * @returns for a video room: a button to toggle timeline in the right panel
+ *          otherwise null
+ */
+export const VideoRoomChatButton: React.FC<{ room: Room }> = ({ room }) => {
+    const sdkContext = useContext(SDKContext);
+
+    const isVideoRoom = calcIsVideoRoom(room);
+
+    const notificationState = isVideoRoom ? sdkContext.roomNotificationStateStore.getRoomState(room) : undefined;
+    const notificationColor = useEventEmitterState(
+        notificationState,
+        NotificationStateEvents.Update,
+        () => notificationState?.color,
+    );
+
+    if (!isVideoRoom) {
+        return null;
+    }
+
+    const displayUnreadIndicator =
+        !!notificationColor &&
+        [NotificationColor.Bold, NotificationColor.Grey, NotificationColor.Red].includes(notificationColor);
+
+    const onClick = (event: ButtonEvent): void => {
+        // stop event propagating up and triggering RoomHeader bar click
+        // which will open RoomSummary
+        event.stopPropagation();
+        sdkContext.rightPanelStore.showOrHidePanel(RightPanelPhases.Timeline);
+    };
+
+    return (
+        <Tooltip label={_t("right_panel|video_room_chat|title")}>
+            <IconButton
+                aria-label={_t("right_panel|video_room_chat|title")}
+                onClick={onClick}
+                indicator={displayUnreadIndicator ? "default" : undefined}
+            >
+                <ChatIcon />
+            </IconButton>
+        </Tooltip>
+    );
+};

test/components/views/rooms/RoomHeader/VideoRoomChatButton-test.tsx

@@ -0,0 +1,144 @@
+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import React from "react";
+import { MockedObject } from "jest-mock";
+import { Room } from "matrix-js-sdk/src/matrix";
+import { fireEvent, render, screen } from "@testing-library/react";
+
+import { VideoRoomChatButton } from "../../../../../src/components/views/rooms/RoomHeader/VideoRoomChatButton";
+import { SDKContext, SdkContextClass } from "../../../../../src/contexts/SDKContext";
+import RightPanelStore from "../../../../../src/stores/right-panel/RightPanelStore";
+import { getMockClientWithEventEmitter, mockClientMethodsUser } from "../../../../test-utils";
+import { RoomNotificationState } from "../../../../../src/stores/notifications/RoomNotificationState";
+import { NotificationColor } from "../../../../../src/stores/notifications/NotificationColor";
+import { NotificationStateEvents } from "../../../../../src/stores/notifications/NotificationState";
+import { RightPanelPhases } from "../../../../../src/stores/right-panel/RightPanelStorePhases";
+
+describe("<VideoRoomChatButton />", () => {
+    const roomId = "!room:server.org";
+    let sdkContext!: SdkContextClass;
+    let rightPanelStore!: MockedObject<RightPanelStore>;
+
+    /**
+     * Create a room using mocked client
+     * And mock isElementVideoRoom
+     */
+    const makeRoom = (isVideoRoom = true): Room => {
+        const room = new Room(roomId, sdkContext.client!, sdkContext.client!.getSafeUserId());
+        jest.spyOn(room, "isElementVideoRoom").mockReturnValue(isVideoRoom);
+        // stub
+        jest.spyOn(room, "getPendingEvents").mockReturnValue([]);
+        return room;
+    };
+
+    const mockRoomNotificationState = (room: Room, color: NotificationColor): RoomNotificationState => {
+        const roomNotificationState = new RoomNotificationState(room);
+
+        // @ts-ignore ugly mocking
+        roomNotificationState._color = color;
+        jest.spyOn(sdkContext.roomNotificationStateStore, "getRoomState").mockReturnValue(roomNotificationState);
+        return roomNotificationState;
+    };
+
+    const getComponent = (room: Room) =>
+        render(<VideoRoomChatButton room={room} />, {
+            wrapper: ({ children }) => <SDKContext.Provider value={sdkContext}>{children}</SDKContext.Provider>,
+        });
+
+    beforeEach(() => {
+        const client = getMockClientWithEventEmitter({
+            ...mockClientMethodsUser(),
+        });
+        rightPanelStore = {
+            showOrHidePanel: jest.fn(),
+        } as unknown as MockedObject<RightPanelStore>;
+        sdkContext = new SdkContextClass();
+        sdkContext.client = client;
+        jest.spyOn(sdkContext, "rightPanelStore", "get").mockReturnValue(rightPanelStore);
+    });
+
+    afterEach(() => {
+        jest.restoreAllMocks();
+    });
+
+    it("does not render button when room is not a video room", () => {
+        const room = makeRoom(false);
+        getComponent(room);
+
+        expect(screen.queryByLabelText("Chat")).not.toBeInTheDocument();
+    });
+
+    it("renders button when room is a video room", () => {
+        const room = makeRoom();
+        getComponent(room);
+
+        expect(screen.getByLabelText("Chat")).toMatchSnapshot();
+    });
+
+    it("toggles timeline in right panel on click", () => {
+        const room = makeRoom();
+        getComponent(room);
+
+        fireEvent.click(screen.getByLabelText("Chat"));
+
+        expect(sdkContext.rightPanelStore.showOrHidePanel).toHaveBeenCalledWith(RightPanelPhases.Timeline);
+    });
+
+    it("renders button with an unread marker when room is unread", () => {
+        const room = makeRoom();
+        mockRoomNotificationState(room, NotificationColor.Bold);
+        getComponent(room);
+
+        // snapshot includes `data-indicator` attribute
+        expect(screen.getByLabelText("Chat")).toMatchSnapshot();
+        expect(screen.getByLabelText("Chat").hasAttribute("data-indicator")).toBeTruthy();
+    });
+
+    it("adds unread marker when room notification state changes to unread", () => {
+        const room = makeRoom();
+        // start in read state
+        const notificationState = mockRoomNotificationState(room, NotificationColor.None);
+        getComponent(room);
+
+        // no unread marker
+        expect(screen.getByLabelText("Chat").hasAttribute("data-indicator")).toBeFalsy();
+
+        // @ts-ignore ugly mocking
+        notificationState._color = NotificationColor.Red;
+        notificationState.emit(NotificationStateEvents.Update);
+
+        // unread marker
+        expect(screen.getByLabelText("Chat").hasAttribute("data-indicator")).toBeTruthy();
+    });
+
+    it("clears unread marker when room notification state changes to read", () => {
+        const room = makeRoom();
+        // start in unread state
+        const notificationState = mockRoomNotificationState(room, NotificationColor.Red);
+        getComponent(room);
+
+        // unread marker
+        expect(screen.getByLabelText("Chat").hasAttribute("data-indicator")).toBeTruthy();
+
+        // @ts-ignore ugly mocking
+        notificationState._color = NotificationColor.None;
+        notificationState.emit(NotificationStateEvents.Update);
+
+        // unread marker cleared
+        expect(screen.getByLabelText("Chat").hasAttribute("data-indicator")).toBeFalsy();
+    });
+});

test/components/views/rooms/RoomHeader/__snapshots__/VideoRoomChatButton-test.tsx.snap

@@ -0,0 +1,24 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`<VideoRoomChatButton /> renders button when room is a video room 1`] = `
+<button
+  aria-label="Chat"
+  class="_icon-button_1qjaf_17"
+  data-state="closed"
+  style="--cpd-icon-button-size: 32px;"
+>
+  <div />
+</button>
+`;
+
+exports[`<VideoRoomChatButton /> renders button with an unread marker when room is unread 1`] = `
+<button
+  aria-label="Chat"
+  class="_icon-button_1qjaf_17"
+  data-indicator="default"
+  data-state="closed"
+  style="--cpd-icon-button-size: 32px;"
+>
+  <div />
+</button>
+`;

yarn.lock

@@ -3037,10 +3037,10 @@
   resolved "https://registry.yarnpkg.com/@ungap/structured-clone/-/structured-clone-1.2.0.tgz#756641adb587851b5ccb3e095daf27ae581c8406"
   integrity sha512-zuVdFrMJiuCDQUMCzQaD6KL28MjnqqN8XnAqiEq9PNm/hCPTSGfrXCOfwj1ow4LFb/tNymJPwsNbVePc1xFqrQ==
 
-"@vector-im/compound-design-tokens@^0.0.7":
-  version "0.0.7"
-  resolved "https://registry.yarnpkg.com/@vector-im/compound-design-tokens/-/compound-design-tokens-0.0.7.tgz#b0716dd4782dd95900491e45b003b58f93748024"
-  integrity sha512-RCQc6qr+s8cp4xKbNi/I3OL43uPCH+N4L9vYf0r+qwRy4WCKdI4QL0TBTV4bOo8hF49z8e+BgU5ZIu5TVQXNMQ==
+"@vector-im/compound-design-tokens@^0.1.0":
+  version "0.1.0"
+  resolved "https://registry.yarnpkg.com/@vector-im/compound-design-tokens/-/compound-design-tokens-0.1.0.tgz#1a574fba872ff93b1de8490f475e30b922cd02a2"
+  integrity sha512-vnDrd1CPPR7CwQLss/JnIE1ga6QwmCkhgBvXm1huMhCs7nIiqf90Sbgc0WugbHNaRXGEEhMVGrE69DaQIUcqOA==
   dependencies:
     svg2vectordrawable "^2.9.1"