Add tabs to the right panel (#12672)

* Create new method for header button behaviour

With the introduction of tabs, the behaviour of the header buttons is
changed as follows:
- Close any right panel if open
- Open the correct right panel if no panel was open before

The old method (and behaviour) is retained as showOrHidePhase.

* Implement tabs in the right panel

There are three tabs: Info, People and Threads

* Remove unwanted code from RoomSummaryCard

- Remove the menu item for opening the memberlist since that is now
  taken of by the tabs.
- Remove the close button

* Remove code for focusing close button from tac item

See https://github.com/matrix-org/matrix-react-sdk/pull/12410

There's no longer a close button to focus so we instead focus the thread
tab. This is done in RightPaneltabs.tsx so we just need to remove this
code.

* Introduce a room info icon to the header

This was previously present in the legacy room header but not in the new
header.

* BaseCard changes

- Adds id, ariaLabelledBy and role props to implement tab accessibility.
- Adds hideHeaderButtons prop to hide header buttons (think back and
  close buttons).
- Change confusing header rendering code:
  header is not rendered ONLY when no header is passed AND
  hideHeaderButtons is true.

* Refactor repeated code into function

Created a new function createSpaceScopeHeader which returns the
component if the room is a space room. Previously this code was
duplicated in every component that uses SpaceScopeHeader component.

* Pass BaseCard attributes and use helper function

Actually using the code from the last two commits

* Add, update and remove tests/screenshots/snapshots

* Fix distance between search bar and tabs

* Update compound

* Update screenshots/snapshots

package.json

@@ -78,7 +78,7 @@
         "@sentry/browser": "^8.0.0",
         "@testing-library/react-hooks": "^8.0.1",
         "@vector-im/compound-design-tokens": "^1.2.0",
-        "@vector-im/compound-web": "^5.1.2",
+        "@vector-im/compound-web": "^5.2.3",
         "@zxcvbn-ts/core": "^3.0.4",
         "@zxcvbn-ts/language-common": "^3.0.4",
         "@zxcvbn-ts/language-en": "^3.0.2",

playwright/e2e/crypto/crypto.spec.ts

@@ -103,7 +103,7 @@ const verify = async (page: Page, bob: Bot) => {
     const bobsVerificationRequestPromise = waitForVerificationRequest(bob);
 
     const roomInfo = await openRoomInfo(page);
-    await roomInfo.getByRole("menuitem", { name: "People" }).click();
+    await page.locator(".mx_RightPanelTabs").getByText("People").click();
     await roomInfo.getByText("Bob").click();
     await roomInfo.getByRole("button", { name: "Verify" }).click();
     await roomInfo.getByRole("button", { name: "Start Verification" }).click();
@@ -279,7 +279,7 @@ test.describe("Cryptography", function () {
 
         // Assert that verified icon is rendered
         await page.getByRole("button", { name: "Room members" }).click();
-        await page.getByRole("button", { name: "Room information" }).click();
+        await page.locator(".mx_RightPanelTabs").getByText("Info").click();
         await expect(page.locator('.mx_RoomSummaryCard_badges [data-kind="success"]')).toContainText("Encrypted");
 
         // Take a snapshot of RoomSummaryCard with a verified E2EE icon

playwright/e2e/crypto/dehydration.spec.ts

@@ -102,7 +102,7 @@ test.describe("Dehydration", () => {
 
         await viewRoomSummaryByName(page, app, ROOM_NAME);
 
-        await page.getByRole("menuitem", { name: "People" }).click();
+        await page.locator(".mx_RightPanelTabs").getByText("People").click();
         await expect(page.locator(".mx_MemberList")).toBeVisible();
 
         await getMemberTileByName(page, NAME).click();

playwright/e2e/lazy-loading/lazy-loading.spec.ts

@@ -80,7 +80,7 @@ test.describe("Lazy Loading", () => {
 
     async function openMemberlist(page: Page): Promise<void> {
         await page.locator(".mx_LegacyRoomHeader").getByRole("button", { name: "Room info" }).click();
-        await page.locator(".mx_RoomSummaryCard").getByRole("menuitem", { name: "People" }).click(); // \d represents the number of the room members
+        await page.locator(".mx_RightPanelTabs").getByText("People").click();
     }
 
     function getMemberInMemberlist(page: Page, name: string): Locator {

playwright/e2e/read-receipts/index.ts

@@ -399,11 +399,10 @@ class Helpers {
     }
 
     /**
-     * Close the threads panel. (Actually, close any right panel, but for these
+     * Close the threads panel.
-     * tests we only open the threads panel.)
      */
     async closeThreadsPanel() {
-        await this.page.locator(".mx_RightPanel").getByLabel("Close").click();
+        await this.page.locator(".mx_LegacyRoomHeader").getByLabel("Threads").click();
         await expect(this.page.locator(".mx_RightPanel")).not.toBeVisible();
     }
 
@@ -411,7 +410,7 @@ class Helpers {
      * Return to the list of threads, given we are viewing a single thread.
      */
     async backToThreadsList() {
-        await this.page.locator(".mx_RightPanel").getByLabel("Threads").click();
+        await this.page.locator(".mx_LegacyRoomHeader").getByLabel("Threads").click();
     }
 
     /**

playwright/e2e/right-panel/right-panel.spec.ts

@@ -113,7 +113,7 @@ test.describe("RightPanel", () => {
         test("should handle viewing room member", async ({ page, app }) => {
             await viewRoomSummaryByName(page, app, ROOM_NAME);
 
-            await page.getByRole("menuitem", { name: "People" }).click();
+            await page.locator(".mx_RightPanelTabs").getByText("People").click();
             await expect(page.locator(".mx_MemberList")).toBeVisible();
 
             await getMemberTileByName(page, NAME).click();
@@ -123,7 +123,7 @@ test.describe("RightPanel", () => {
             await page.getByRole("button", { name: "Room members" }).click();
             await expect(page.locator(".mx_MemberList")).toBeVisible();
 
-            await page.getByRole("button", { name: "Room information" }).click();
+            await page.locator(".mx_RightPanelTabs").getByText("Info").click();
             await checkRoomSummaryCard(page, ROOM_NAME);
         });
     });

playwright/e2e/spaces/threads-activity-centre/index.ts

@@ -337,12 +337,10 @@ export class Helpers {
     }
 
     /**
-     * Assert that the thread panel is focused (actually the 'close' button, specifically)
+     * Assert that the thread tab is focused
      */
-    assertThreadPanelFocused() {
+    assertThreadTabFocused() {
-        return expect(
+        return expect(this.page.locator("#thread-panel-tab")).toBeFocused();
-            this.page.locator(".mx_ThreadPanel").locator(".mx_BaseCard_header").getByLabel("Close"),
-        ).toBeFocused();
     }
 
     /**

playwright/e2e/spaces/threads-activity-centre/threadsActivityCentre.spec.ts

@@ -161,17 +161,12 @@ test.describe("Threads Activity Centre", () => {
         await util.assertNoTacIndicator();
     });
 
-    test("should focus the thread panel close button when clicking an item in the TAC", async ({
+    test("should focus the thread tab when clicking an item in the TAC", async ({ room1, room2, util, msg }) => {
-        room1,
-        room2,
-        util,
-        msg,
-    }) => {
         await util.receiveMessages(room1, ["Msg1", msg.threadedOff("Msg1", "Resp1")]);
 
         await util.openTac();
         await util.clickRoomInTac(room1.name);
 
-        await util.assertThreadPanelFocused();
+        await util.assertThreadTabFocused();
     });
 });

res/css/_components.pcss

@@ -261,6 +261,7 @@
 @import "./views/right_panel/_BaseCard.pcss";
 @import "./views/right_panel/_EncryptionInfo.pcss";
 @import "./views/right_panel/_PinnedMessagesCard.pcss";
+@import "./views/right_panel/_RightPanelTabs.pcss";
 @import "./views/right_panel/_RoomSummaryCard.pcss";
 @import "./views/right_panel/_ThreadPanel.pcss";
 @import "./views/right_panel/_TimelineCard.pcss";

res/css/views/right_panel/_RightPanelTabs.pcss

@@ -0,0 +1,25 @@
+/*
+Copyright 2024 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.
+*/
+
+.mx_RightPanelTabs {
+    margin: 0;
+    height: 64px;
+    box-sizing: border-box;
+
+    ul {
+        margin-left: 16px;
+    }
+}

res/css/views/right_panel/_RoomSummaryCard.pcss

@@ -235,7 +235,7 @@ limitations under the License.
 }
 
 .mx_RoomSummaryCard_header {
-    padding: 15px 12px;
+    padding: 24px 12px 15px;
 }
 
 .mx_RoomSummaryCard_search {

res/css/views/rooms/_MemberList.pcss

@@ -19,6 +19,7 @@ limitations under the License.
     display: flex;
     flex-direction: column;
     min-height: 0;
+    margin-top: 24px;
 
     .mx_Spinner {
         flex: 1 0 auto;

src/components/structures/RightPanel.tsx

@@ -42,6 +42,7 @@ import { UPDATE_EVENT } from "../../stores/AsyncStore";
 import { IRightPanelCard, IRightPanelCardState } from "../../stores/right-panel/RightPanelStoreIPanelState";
 import { Action } from "../../dispatcher/actions";
 import { XOR } from "../../@types/common";
+import { RightPanelTabs } from "../views/right_panel/RightPanelTabs";
 
 interface BaseProps {
     overwriteCard?: IRightPanelCard; // used to display a custom card and ignoring the RightPanelStore (used for UserView)
@@ -171,6 +172,7 @@ export default class RightPanel extends React.Component<Props, IState> {
                         <MemberList
                             roomId={roomId}
                             key={roomId}
+                            hideHeaderButtons
                             onClose={this.onClose}
                             searchQuery={this.state.searchQuery}
                             onSearchQueryChanged={this.onSearchQueryChanged}
@@ -294,7 +296,6 @@ export default class RightPanel extends React.Component<Props, IState> {
                     card = (
                         <RoomSummaryCard
                             room={this.props.room}
-                            onClose={this.onClose}
                             // whenever RightPanel is passed a room it is passed a permalinkcreator
                             permalinkCreator={this.props.permalinkCreator!}
                             onSearchChange={this.props.onSearchChange}
@@ -314,6 +315,7 @@ export default class RightPanel extends React.Component<Props, IState> {
 
         return (
             <aside className="mx_RightPanel" id="mx_RightPanel">
+                {phase && <RightPanelTabs phase={phase} />}
                 {card}
             </aside>
         );

src/components/structures/RoomView.tsx

@@ -1287,7 +1287,7 @@ export class RoomView extends React.Component<IRoomProps, IRoomState> {
                         ]);
                     }
                 } else {
-                    RightPanelStore.instance.showOrHidePanel(RightPanelPhases.RoomMemberList);
+                    RightPanelStore.instance.showOrHidePhase(RightPanelPhases.RoomMemberList);
                 }
                 break;
             case Action.View3pidInvite:

src/components/structures/ThreadPanel.tsx

@@ -37,9 +37,6 @@ import { ButtonEvent } from "../views/elements/AccessibleButton";
 import Spinner from "../views/elements/Spinner";
 import Heading from "../views/typography/Heading";
 import { clearRoomNotification } from "../../utils/notifications";
-import { useDispatcher } from "../../hooks/useDispatcher";
-import dis from "../../dispatcher/dispatcher";
-import { Action } from "../../dispatcher/actions";
 
 interface IProps {
     roomId: string;
@@ -259,14 +256,6 @@ const ThreadPanel: React.FC<IProps> = ({ roomId, onClose, permalinkCreator }) =>
         }
     }, [timelineSet, timelinePanel]);
 
-    useDispatcher(dis, (payload) => {
-        // This actually foucses the close button on the threads panel, as its the only interactive element,
-        // but at least it puts the user in the right area of the app.
-        if (payload.action === Action.FocusThreadsPanel) {
-            closeButonRef.current?.focus();
-        }
-    });
-
     return (
         <RoomContext.Provider
             value={{
@@ -277,6 +266,7 @@ const ThreadPanel: React.FC<IProps> = ({ roomId, onClose, permalinkCreator }) =>
             }}
         >
             <BaseCard
+                hideHeaderButtons
                 header={
                     <ThreadPanelHeader
                         filterOption={filterOption}
@@ -284,7 +274,10 @@ const ThreadPanel: React.FC<IProps> = ({ roomId, onClose, permalinkCreator }) =>
                         empty={!hasThreads}
                     />
                 }
+                id="thread-panel"
                 className="mx_ThreadPanel"
+                ariaLabelledBy="thread-panel-tab"
+                role="tabpanel"
                 onClose={onClose}
                 withoutScrollContainer={true}
                 ref={card}

src/components/views/right_panel/BaseCard.tsx

@@ -26,8 +26,12 @@ import { CardContext } from "./context";
 
 interface IProps {
     header?: ReactNode | null;
+    hideHeaderButtons?: boolean;
     footer?: ReactNode;
     className?: string;
+    id?: string;
+    role?: "tabpanel";
+    ariaLabelledBy?: string;
     withoutScrollContainer?: boolean;
     closeLabel?: string;
     onClose?(ev: ButtonEvent): void;
@@ -62,6 +66,10 @@ const BaseCard: React.FC<IProps> = forwardRef<HTMLDivElement, IProps>(
             onClose,
             onBack,
             className,
+            id,
+            ariaLabelledBy,
+            role,
+            hideHeaderButtons,
             header,
             footer,
             withoutScrollContainer,
@@ -100,13 +108,31 @@ const BaseCard: React.FC<IProps> = forwardRef<HTMLDivElement, IProps>(
             children = <AutoHideScrollbar>{children}</AutoHideScrollbar>;
         }
 
-        return (
+        let headerButtons: React.ReactElement | undefined;
-            <CardContext.Provider value={{ isCard: true }}>
+        if (!hideHeaderButtons) {
-                <div className={classNames("mx_BaseCard", className)} ref={ref} onKeyDown={onKeyDown}>
+            headerButtons = (
-                    {header !== null && (
+                <>
-                        <div className="mx_BaseCard_header">
                     {backButton}
                     {closeButton}
+                </>
+            );
+        }
+
+        const shouldRenderHeader = header || !hideHeaderButtons;
+
+        return (
+            <CardContext.Provider value={{ isCard: true }}>
+                <div
+                    id={id}
+                    aria-labelledby={ariaLabelledBy}
+                    role={role}
+                    className={classNames("mx_BaseCard", className)}
+                    ref={ref}
+                    onKeyDown={onKeyDown}
+                >
+                    {shouldRenderHeader && (
+                        <div className="mx_BaseCard_header">
+                            {headerButtons}
                             <div className="mx_BaseCard_headerProp">{header}</div>
                         </div>
                     )}

src/components/views/right_panel/LegacyRoomHeaderButtons.tsx

@@ -214,27 +214,27 @@ export default class LegacyRoomHeaderButtons extends HeaderButtons<IProps> {
         const currentPhase = RightPanelStore.instance.currentCard.phase;
         if (currentPhase && ROOM_INFO_PHASES.includes(currentPhase)) {
             if (this.state.phase === currentPhase) {
-                RightPanelStore.instance.showOrHidePanel(currentPhase);
+                RightPanelStore.instance.showOrHidePhase(currentPhase);
             } else {
-                RightPanelStore.instance.showOrHidePanel(currentPhase, RightPanelStore.instance.currentCard.state);
+                RightPanelStore.instance.showOrHidePhase(currentPhase, RightPanelStore.instance.currentCard.state);
             }
         } else {
             // This toggles for us, if needed
-            RightPanelStore.instance.showOrHidePanel(RightPanelPhases.RoomSummary);
+            RightPanelStore.instance.showOrHidePhase(RightPanelPhases.RoomSummary);
         }
     };
 
     private onNotificationsClicked = (): void => {
         // This toggles for us, if needed
-        RightPanelStore.instance.showOrHidePanel(RightPanelPhases.NotificationPanel);
+        RightPanelStore.instance.showOrHidePhase(RightPanelPhases.NotificationPanel);
     };
 
     private onPinnedMessagesClicked = (): void => {
         // This toggles for us, if needed
-        RightPanelStore.instance.showOrHidePanel(RightPanelPhases.PinnedMessages);
+        RightPanelStore.instance.showOrHidePhase(RightPanelPhases.PinnedMessages);
     };
     private onTimelineCardClicked = (): void => {
-        RightPanelStore.instance.showOrHidePanel(RightPanelPhases.Timeline);
+        RightPanelStore.instance.showOrHidePhase(RightPanelPhases.Timeline);
     };
 
     private onThreadsPanelClicked = (ev: ButtonEvent): void => {

src/components/views/right_panel/RightPanelTabs.tsx

@@ -0,0 +1,86 @@
+/*
+Copyright 2024 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, { useRef } from "react";
+import { NavBar, NavItem } from "@vector-im/compound-web";
+
+import { _t } from "../../../languageHandler";
+import { RightPanelPhases } from "../../../stores/right-panel/RightPanelStorePhases";
+import RightPanelStore from "../../../stores/right-panel/RightPanelStore";
+import PosthogTrackers from "../../../PosthogTrackers";
+import { useDispatcher } from "../../../hooks/useDispatcher";
+import dispatcher from "../../../dispatcher/dispatcher";
+import { Action } from "../../../dispatcher/actions";
+
+function shouldShowTabsForPhase(phase?: RightPanelPhases): boolean {
+    const tabs = [RightPanelPhases.RoomSummary, RightPanelPhases.RoomMemberList, RightPanelPhases.ThreadPanel];
+    return !!phase && tabs.includes(phase);
+}
+
+type Props = {
+    phase: RightPanelPhases;
+};
+
+export const RightPanelTabs: React.FC<Props> = ({ phase }): JSX.Element | null => {
+    const threadsTabRef = useRef<HTMLButtonElement | null>(null);
+
+    useDispatcher(dispatcher, (payload) => {
+        // This actually focuses the threads tab, as its the only interactive element,
+        // but at least it puts the user in the right area of the app.
+        if (payload.action === Action.FocusThreadsPanel) {
+            threadsTabRef.current?.focus();
+        }
+    });
+
+    if (!shouldShowTabsForPhase(phase)) return null;
+
+    return (
+        <NavBar className="mx_RightPanelTabs" aria-label="right panel" role="tablist">
+            <NavItem
+                aria-controls="room-summary-panel"
+                id="room-summary-panel-tab"
+                onClick={() => {
+                    RightPanelStore.instance.pushCard({ phase: RightPanelPhases.RoomSummary }, true);
+                }}
+                active={phase === RightPanelPhases.RoomSummary}
+            >
+                {_t("right_panel|info")}
+            </NavItem>
+            <NavItem
+                aria-controls="memberlist-panel"
+                id="memberlist-panel-tab"
+                onClick={(ev: React.MouseEvent<HTMLButtonElement, MouseEvent>) => {
+                    RightPanelStore.instance.pushCard({ phase: RightPanelPhases.RoomMemberList }, true);
+                    PosthogTrackers.trackInteraction("WebRightPanelRoomInfoPeopleButton", ev);
+                }}
+                active={phase === RightPanelPhases.RoomMemberList}
+            >
+                {_t("common|people")}
+            </NavItem>
+            <NavItem
+                aria-controls="thread-panel"
+                id="thread-panel-tab"
+                onClick={() => {
+                    RightPanelStore.instance.pushCard({ phase: RightPanelPhases.ThreadPanel }, true);
+                }}
+                active={phase === RightPanelPhases.ThreadPanel}
+                ref={threadsTabRef}
+            >
+                {_t("common|threads")}
+            </NavItem>
+        </NavBar>
+    );
+};

src/components/views/right_panel/RoomSummaryCard.tsx

@@ -39,7 +39,6 @@ import {
 } from "@vector-im/compound-web";
 import { Icon as FavouriteIcon } from "@vector-im/compound-design-tokens/icons/favourite.svg";
 import { Icon as UserAddIcon } from "@vector-im/compound-design-tokens/icons/user-add.svg";
-import { Icon as UserProfileSolidIcon } from "@vector-im/compound-design-tokens/icons/user-profile-solid.svg";
 import { Icon as LinkIcon } from "@vector-im/compound-design-tokens/icons/link.svg";
 import { Icon as SettingsIcon } from "@vector-im/compound-design-tokens/icons/settings.svg";
 import { Icon as ExportArchiveIcon } from "@vector-im/compound-design-tokens/icons/export-archive.svg";
@@ -106,7 +105,6 @@ import { useTransition } from "../../../hooks/useTransition";
 interface IProps {
     room: Room;
     permalinkCreator: RoomPermalinkCreator;
-    onClose(): void;
     onSearchChange?: (e: ChangeEvent) => void;
     onSearchCancel?: () => void;
     focusRoomSearch?: boolean;
@@ -382,7 +380,6 @@ const RoomTopic: React.FC<Pick<IProps, "room">> = ({ room }): JSX.Element | null
 const RoomSummaryCard: React.FC<IProps> = ({
     room,
     permalinkCreator,
-    onClose,
     onSearchChange,
     onSearchCancel,
     focusRoomSearch,
@@ -416,11 +413,6 @@ const RoomSummaryCard: React.FC<IProps> = ({
         });
     };
 
-    const onRoomMembersClick = (ev: Event): void => {
-        RightPanelStore.instance.pushCard({ phase: RightPanelPhases.RoomMemberList }, true);
-        PosthogTrackers.trackInteraction("WebRightPanelRoomInfoPeopleButton", ev);
-    };
-
     const isRoomEncrypted = useIsEncrypted(cli, room);
     const roomContext = useContext(RoomContext);
     const e2eStatus = roomContext.e2eStatus;
@@ -532,7 +524,13 @@ const RoomSummaryCard: React.FC<IProps> = ({
     const isFavorite = roomTags.includes(DefaultTagID.Favourite);
 
     return (
-        <BaseCard header={null} className="mx_RoomSummaryCard" onClose={onClose}>
+        <BaseCard
+            hideHeaderButtons
+            id="room-summary-panel"
+            className="mx_RoomSummaryCard"
+            ariaLabelledBy="room-summary-panel-tab"
+            role="tabpanel"
+        >
             <Flex
                 as="header"
                 className="mx_RoomSummaryCard_header"
@@ -558,12 +556,6 @@ const RoomSummaryCard: React.FC<IProps> = ({
                         />
                     </Form.Root>
                 )}
-                <AccessibleButton
-                    data-testid="base-card-close-button"
-                    className="mx_BaseCard_close"
-                    onClick={onClose}
-                    title={_t("action|close")}
-                />
             </Flex>
 
             {header}
@@ -589,13 +581,6 @@ const RoomSummaryCard: React.FC<IProps> = ({
                 <MenuItem Icon={SettingsIcon} label={_t("common|settings")} onSelect={onRoomSettingsClick} />
 
                 <Separator />
-                <MenuItem
-                    // this icon matches the legacy implementation
-                    // and is a short term solution until legacy room header is removed
-                    Icon={UserProfileSolidIcon}
-                    label={_t("common|people")}
-                    onSelect={onRoomMembersClick}
-                />
                 {!isVideoRoom && (
                     <>
                         <MenuItem Icon={FilesIcon} label={_t("right_panel|files_button")} onSelect={onRoomFilesClick} />

src/components/views/right_panel/UserInfo.tsx

@@ -80,7 +80,7 @@ import { DirectoryMember, startDmOnFirstMessage } from "../../../utils/direct-me
 import { SdkContextClass } from "../../../contexts/SDKContext";
 import { asyncSome } from "../../../utils/arrays";
 import UIStore from "../../../stores/UIStore";
-import { SpaceScopeHeader } from "../rooms/SpaceScopeHeader";
+import { createSpaceScopeHeader } from "../rooms/SpaceScopeHeader";
 
 export interface IDevice extends Device {
     ambiguous?: boolean;
@@ -1774,10 +1774,11 @@ const UserInfo: React.FC<IProps> = ({ user, room, onClose, phase = RightPanelPha
             <UserInfoHeader member={member} e2eStatus={e2eStatus} roomId={room?.roomId} />
         </>
     );
+
     return (
         <BaseCard
             className={classes.join(" ")}
-            header={room ? <SpaceScopeHeader room={room} /> : undefined}
+            header={createSpaceScopeHeader(room)}
             onClose={onClose}
             closeLabel={closeLabel}
             cardState={cardState}

src/components/views/rooms/MemberList.tsx

@@ -55,7 +55,7 @@ import { SDKContext } from "../../../contexts/SDKContext";
 import { canInviteTo } from "../../../utils/room/canInviteTo";
 import { inviteToRoom } from "../../../utils/room/inviteToRoom";
 import { Action } from "../../../dispatcher/actions";
-import { SpaceScopeHeader } from "./SpaceScopeHeader";
+import { createSpaceScopeHeader } from "./SpaceScopeHeader";
 
 const INITIAL_LOAD_NUM_MEMBERS = 30;
 const INITIAL_LOAD_NUM_INVITED = 5;
@@ -64,6 +64,7 @@ const SHOW_MORE_INCREMENT = 100;
 interface IProps {
     roomId: string;
     searchQuery: string;
+    hideHeaderButtons?: boolean;
     onClose(): void;
     onSearchQueryChanged: (query: string) => void;
 }
@@ -358,7 +359,14 @@ export default class MemberList extends React.Component<IProps, IState> {
     public render(): React.ReactNode {
         if (this.state.loading) {
             return (
-                <BaseCard className="mx_MemberList" onClose={this.props.onClose}>
+                <BaseCard
+                    id="memberlist-panel"
+                    className="mx_MemberList"
+                    ariaLabelledBy="memberlist-panel-tab"
+                    role="tabpanel"
+                    hideHeaderButtons={this.props.hideHeaderButtons}
+                    onClose={this.props.onClose}
+                >
                     <Spinner />
                 </BaseCard>
             );
@@ -415,12 +423,14 @@ export default class MemberList extends React.Component<IProps, IState> {
             />
         );
 
-        const scopeHeader = room ? <SpaceScopeHeader room={room} /> : undefined;
-
         return (
             <BaseCard
+                id="memberlist-panel"
                 className="mx_MemberList"
-                header={<React.Fragment>{scopeHeader}</React.Fragment>}
+                ariaLabelledBy="memberlist-panel-tab"
+                role="tabpanel"
+                header={createSpaceScopeHeader(room)}
+                hideHeaderButtons={this.props.hideHeaderButtons}
                 footer={footer}
                 onClose={this.props.onClose}
             >

src/components/views/rooms/RoomHeader.tsx

@@ -20,6 +20,7 @@ import { Icon as VideoCallIcon } from "@vector-im/compound-design-tokens/icons/v
 import { Icon as VoiceCallIcon } from "@vector-im/compound-design-tokens/icons/voice-call.svg";
 import { Icon as CloseCallIcon } from "@vector-im/compound-design-tokens/icons/close.svg";
 import { Icon as ThreadsIcon } from "@vector-im/compound-design-tokens/icons/threads-solid.svg";
+import { Icon as RoomInfoIcon } from "@vector-im/compound-design-tokens/icons/info-solid.svg";
 import { Icon as NotificationsIcon } from "@vector-im/compound-design-tokens/icons/notifications-solid.svg";
 import { Icon as VerifiedIcon } from "@vector-im/compound-design-tokens/icons/verified.svg";
 import { Icon as ErrorIcon } from "@vector-im/compound-design-tokens/icons/error.svg";
@@ -336,6 +337,17 @@ export default function RoomHeader({
                         </>
                     )}
 
+                    <Tooltip label={_t("right_panel|room_summary_card|title")}>
+                        <IconButton
+                            onClick={(evt) => {
+                                evt.stopPropagation();
+                                RightPanelStore.instance.showOrHidePanel(RightPanelPhases.RoomSummary);
+                            }}
+                            aria-label={_t("right_panel|room_summary_card|title")}
+                        >
+                            <RoomInfoIcon />
+                        </IconButton>
+                    </Tooltip>
                     <Tooltip label={_t("common|threads")}>
                         <IconButton
                             indicator={notificationLevelToIndicator(threadNotifications)}

src/components/views/rooms/SpaceScopeHeader.tsx

@@ -21,18 +21,23 @@ import { Text } from "@vector-im/compound-web";
 import RoomAvatar from "../avatars/RoomAvatar";
 import { useRoomName } from "../../../hooks/useRoomName";
 
+/**
+ * Returns a space scope header if needed
+ * @param room The room object
+ * @returns rendered component if the room is a space room, otherwise returns null
+ */
+export function createSpaceScopeHeader(room?: Room | null): React.JSX.Element | null {
+    if (room?.isSpaceRoom()) return <SpaceScopeHeader room={room} />;
+    else return null;
+}
+
 /**
  * Scope header used to decorate right panels that are scoped to a space.
- * When room is not a space renders nothing.
+ * It renders room avatar and name.
- * Otherwise renders room avatar and name.
  */
 export const SpaceScopeHeader: React.FC<{ room: Room }> = ({ room }) => {
     const roomName = useRoomName(room);
 
-    if (!room.isSpaceRoom()) {
-        return null;
-    }
-
     return (
         <Text
             as="div"

src/components/views/rooms/ThirdPartyMemberInfo.tsx

@@ -28,7 +28,7 @@ import { Action } from "../../../dispatcher/actions";
 import ErrorDialog from "../dialogs/ErrorDialog";
 import BaseCard from "../right_panel/BaseCard";
 import { Flex } from "../../utils/Flex";
-import { SpaceScopeHeader } from "./SpaceScopeHeader";
+import { createSpaceScopeHeader } from "./SpaceScopeHeader";
 
 interface IProps {
     event: MatrixEvent;
@@ -133,10 +133,8 @@ export default class ThirdPartyMemberInfo extends React.Component<IProps, IState
             );
         }
 
-        const scopeHeader: JSX.Element | undefined = this.room ? <SpaceScopeHeader room={this.room} /> : undefined;
-
         return (
-            <BaseCard header={scopeHeader} onClose={this.props.onClose}>
+            <BaseCard header={createSpaceScopeHeader(this.room)} onClose={this.props.onClose}>
                 <Flex className="mx_ThirdPartyMemberInfo" direction="column" gap="var(--cpd-space-4x)">
                     <Flex direction="column" as="section" justify="start" gap="var(--cpd-space-2x)">
                         {/* same as userinfo name style */}

src/i18n/strings/en_EN.json

@@ -1833,6 +1833,7 @@
         "edit_integrations": "Edit widgets, bridges & bots",
         "export_chat_button": "Export chat",
         "files_button": "Files",
+        "info": "Info",
         "pinned_messages": {
             "empty": "Nothing pinned, yet",
             "explainer": "If you have permissions, open the menu on any message and select <b>Pin</b> to stick them here.",

src/stores/right-panel/RightPanelStore.ts

@@ -236,6 +236,23 @@ export default class RightPanelStore extends ReadyWatchingStore {
         }
     }
 
+    /**
+     * If the right panel is open, it is closed.
+     * If the right panel is closed, it is opened with `phase`.
+     *
+     * This is different from showOrHidePhase which only closes the panel
+     * if the panel was already showing the phase passed as argument.
+     * @see showOrHidePhase
+     * @param phase The right panel phase.
+     */
+    public showOrHidePanel(phase: RightPanelPhases): void {
+        if (!this.isOpen) {
+            this.setCard({ phase });
+        } else {
+            this.togglePanel(null);
+        }
+    }
+
     /**
      * Helper to show a right panel phase.
      * If the UI is already showing that phase, the right panel will be hidden.
@@ -245,7 +262,7 @@ export default class RightPanelStore extends ReadyWatchingStore {
      * @param phase The right panel phase.
      * @param cardState The state within the phase.
      */
-    public showOrHidePanel(phase: RightPanelPhases, cardState?: Partial<IRightPanelCardState>): void {
+    public showOrHidePhase(phase: RightPanelPhases, cardState?: Partial<IRightPanelCardState>): void {
         if (this.currentCard.phase == phase && !cardState && this.isOpen) {
             this.togglePanel(null);
         } else {

src/stores/right-panel/action-handlers/View3pidInvite.ts

@@ -32,6 +32,6 @@ export const onView3pidInvite = (payload: ActionPayload, rightPanelStore: RightP
             state: { memberInfoEvent: payload.event },
         });
     } else {
-        rightPanelStore.showOrHidePanel(RightPanelPhases.RoomMemberList);
+        rightPanelStore.showOrHidePhase(RightPanelPhases.RoomMemberList);
     }
 };

test/components/structures/ThreadPanel-test.tsx

@@ -36,8 +36,6 @@ import ResizeNotifier from "../../../src/utils/ResizeNotifier";
 import { createTestClient, getRoomContext, mkRoom, mockPlatformPeg, stubClient } from "../../test-utils";
 import { mkThread } from "../../test-utils/threads";
 import { IRoomState } from "../../../src/components/structures/RoomView";
-import defaultDispatcher from "../../../src/dispatcher/dispatcher";
-import { Action } from "../../../src/dispatcher/actions";
 
 jest.mock("../../../src/utils/Feedback");
 
@@ -148,43 +146,6 @@ describe("ThreadPanel", () => {
             fireEvent.click(getByRole(container, "button", { name: "Mark all as read" }));
             await waitFor(() => expect(mockClient.sendReadReceipt).not.toHaveBeenCalled());
         });
-
-        it("focuses the close button on FocusThreadsPanel dispatch", () => {
-            const ROOM_ID = "!roomId:example.org";
-
-            stubClient();
-            mockPlatformPeg();
-            const mockClient = mocked(MatrixClientPeg.safeGet());
-
-            const room = new Room(ROOM_ID, mockClient, mockClient.getUserId() ?? "", {
-                pendingEventOrdering: PendingEventOrdering.Detached,
-            });
-
-            render(
-                <MatrixClientContext.Provider value={mockClient}>
-                    <RoomContext.Provider
-                        value={getRoomContext(room, {
-                            canSendMessages: true,
-                        })}
-                    >
-                        <ThreadPanel
-                            roomId={ROOM_ID}
-                            onClose={jest.fn()}
-                            resizeNotifier={new ResizeNotifier()}
-                            permalinkCreator={new RoomPermalinkCreator(room)}
-                        />
-                    </RoomContext.Provider>
-                </MatrixClientContext.Provider>,
-            );
-
-            // Unfocus it first so we know it's not just focused by coincidence
-            screen.getByTestId("base-card-close-button").blur();
-            expect(screen.getByTestId("base-card-close-button")).not.toHaveFocus();
-
-            defaultDispatcher.dispatch({ action: Action.FocusThreadsPanel }, true);
-
-            expect(screen.getByTestId("base-card-close-button")).toHaveFocus();
-        });
     });
 
     describe("Filtering", () => {

test/components/views/right_panel/RightPanelTabs-test.tsx

@@ -0,0 +1,72 @@
+/*
+Copyright 2024 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 { render, fireEvent } from "@testing-library/react";
+
+import dis from "../../../../src/dispatcher/dispatcher";
+import RightPanelStore from "../../../../src/stores/right-panel/RightPanelStore";
+import { RightPanelPhases } from "../../../../src/stores/right-panel/RightPanelStorePhases";
+import { RightPanelTabs } from "../../../../src/components/views/right_panel/RightPanelTabs";
+import { Action } from "../../../../src/dispatcher/actions";
+
+describe("<RightPanelTabs />", () => {
+    it("Component renders the correct tabs", () => {
+        const { container, getByRole } = render(<RightPanelTabs phase={RightPanelPhases.RoomSummary} />);
+        expect(container).toMatchSnapshot();
+
+        // We expect Info, People and Threads as tabs
+        expect(getByRole("tab", { name: "Info" })).toBeDefined();
+        expect(getByRole("tab", { name: "People" })).toBeDefined();
+        expect(getByRole("tab", { name: "Threads" })).toBeDefined();
+    });
+
+    it("Correct tab is active", () => {
+        const { container } = render(<RightPanelTabs phase={RightPanelPhases.RoomMemberList} />);
+        expect(container).toMatchSnapshot();
+        // Assert that the active tab is Info
+        expect(container.querySelectorAll("[aria-selected='true'").length).toEqual(1);
+        expect(container.querySelector("[aria-selected='true'")).toHaveAccessibleName("People");
+    });
+
+    it("Renders nothing for some phases, eg: FilePanel", () => {
+        const { container } = render(<RightPanelTabs phase={RightPanelPhases.FilePanel} />);
+        expect(container).toBeEmptyDOMElement();
+    });
+
+    it("onClick behaviors work as expected", () => {
+        const spy = jest.spyOn(RightPanelStore.instance, "pushCard");
+        const { getByRole } = render(<RightPanelTabs phase={RightPanelPhases.RoomSummary} />);
+
+        // Info -> People
+        fireEvent.click(getByRole("tab", { name: "People" }));
+        expect(spy).toHaveBeenLastCalledWith({ phase: RightPanelPhases.RoomMemberList }, true);
+
+        // People -> Threads
+        fireEvent.click(getByRole("tab", { name: "Threads" }));
+        expect(spy).toHaveBeenLastCalledWith({ phase: RightPanelPhases.ThreadPanel }, true);
+
+        // Threads -> Info
+        fireEvent.click(getByRole("tab", { name: "Info" }));
+        expect(spy).toHaveBeenLastCalledWith({ phase: RightPanelPhases.RoomSummary }, true);
+    });
+
+    it("Threads tab is focused on action", () => {
+        const { getByRole } = render(<RightPanelTabs phase={RightPanelPhases.ThreadPanel} />);
+        dis.dispatch({ action: Action.FocusThreadsPanel }, true);
+        expect(getByRole("tab", { name: "Threads" })).toHaveFocus();
+    });
+});

test/components/views/right_panel/RoomSummaryCard-test.tsx

@@ -35,7 +35,6 @@ import { flushPromises, getMockClientWithEventEmitter, mockClientMethodsUser } f
 import { PollHistoryDialog } from "../../../../src/components/views/dialogs/PollHistoryDialog";
 import { RoomPermalinkCreator } from "../../../../src/utils/permalinks/Permalinks";
 import { _t } from "../../../../src/languageHandler";
-import SettingsStore from "../../../../src/settings/SettingsStore";
 import { tagRoom } from "../../../../src/utils/room/tagRoom";
 import { DefaultTagID } from "../../../../src/stores/room-list/models";
 import { Action } from "../../../../src/dispatcher/actions";
@@ -195,7 +194,6 @@ describe("<RoomSummaryCard />", () => {
                         <RoomSummaryCard
                             room={room}
                             permalinkCreator={new RoomPermalinkCreator(room)}
-                            onClose={jest.fn()}
                             onSearchChange={onSearchChange}
                             focusRoomSearch={true}
                         />
@@ -212,7 +210,6 @@ describe("<RoomSummaryCard />", () => {
                         <RoomSummaryCard
                             room={room}
                             permalinkCreator={new RoomPermalinkCreator(room)}
-                            onClose={jest.fn()}
                             onSearchChange={onSearchChange}
                         />
                     </RoomContext.Provider>
@@ -270,18 +267,6 @@ describe("<RoomSummaryCard />", () => {
         expect(defaultDispatcher.dispatch).toHaveBeenCalledWith({ action: "open_room_settings" });
     });
 
-    it("renders room members options when new room UI is not enabled", () => {
-        jest.spyOn(SettingsStore, "getValue").mockReturnValue(false);
-        const { getByText } = getComponent();
-
-        fireEvent.click(getByText(_t("common|people")));
-
-        expect(RightPanelStore.instance.pushCard).toHaveBeenCalledWith(
-            { phase: RightPanelPhases.RoomMemberList },
-            true,
-        );
-    });
-
     describe("pinning", () => {
         it("renders pins options when pinning feature is enabled", () => {
             mocked(settingsHooks.useFeatureEnabled).mockImplementation((feature) => feature === "feature_pinning");

test/components/views/right_panel/__snapshots__/RightPanelTabs-test.tsx.snap

@@ -0,0 +1,119 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`<RightPanelTabs /> Component renders the correct tabs 1`] = `
+<div>
+  <nav
+    class="mx_RightPanelTabs _nav-bar_135dy_16"
+    role="presentation"
+  >
+    <ul
+      aria-label="right panel"
+      class="_nav-bar-items_135dy_22"
+      role="tablist"
+    >
+      <li
+        class="_nav-tab_135dy_33"
+        data-current="true"
+        role="presentation"
+      >
+        <button
+          aria-controls="room-summary-panel"
+          aria-selected="true"
+          class="_nav-item_135dy_55"
+          id="room-summary-panel-tab"
+          role="tab"
+        >
+          Info
+        </button>
+      </li>
+      <li
+        class="_nav-tab_135dy_33"
+        role="presentation"
+      >
+        <button
+          aria-controls="memberlist-panel"
+          aria-selected="false"
+          class="_nav-item_135dy_55"
+          id="memberlist-panel-tab"
+          role="tab"
+        >
+          People
+        </button>
+      </li>
+      <li
+        class="_nav-tab_135dy_33"
+        role="presentation"
+      >
+        <button
+          aria-controls="thread-panel"
+          aria-selected="false"
+          class="_nav-item_135dy_55"
+          id="thread-panel-tab"
+          role="tab"
+        >
+          Threads
+        </button>
+      </li>
+    </ul>
+  </nav>
+</div>
+`;
+
+exports[`<RightPanelTabs /> Correct tab is active 1`] = `
+<div>
+  <nav
+    class="mx_RightPanelTabs _nav-bar_135dy_16"
+    role="presentation"
+  >
+    <ul
+      aria-label="right panel"
+      class="_nav-bar-items_135dy_22"
+      role="tablist"
+    >
+      <li
+        class="_nav-tab_135dy_33"
+        role="presentation"
+      >
+        <button
+          aria-controls="room-summary-panel"
+          aria-selected="false"
+          class="_nav-item_135dy_55"
+          id="room-summary-panel-tab"
+          role="tab"
+        >
+          Info
+        </button>
+      </li>
+      <li
+        class="_nav-tab_135dy_33"
+        data-current="true"
+        role="presentation"
+      >
+        <button
+          aria-controls="memberlist-panel"
+          aria-selected="true"
+          class="_nav-item_135dy_55"
+          id="memberlist-panel-tab"
+          role="tab"
+        >
+          People
+        </button>
+      </li>
+      <li
+        class="_nav-tab_135dy_33"
+        role="presentation"
+      >
+        <button
+          aria-controls="thread-panel"
+          aria-selected="false"
+          class="_nav-item_135dy_55"
+          id="thread-panel-tab"
+          role="tab"
+        >
+          Threads
+        </button>
+      </li>
+    </ul>
+  </nav>
+</div>
+`;

test/components/views/right_panel/__snapshots__/RoomSummaryCard-test.tsx.snap

@@ -3,7 +3,10 @@
 exports[`<RoomSummaryCard /> has button to edit topic when expanded 1`] = `
 <div>
   <div
+    aria-labelledby="room-summary-panel-tab"
     class="mx_BaseCard mx_RoomSummaryCard"
+    id="room-summary-panel"
+    role="tabpanel"
   >
     <div
       class="mx_AutoHideScrollbar"
@@ -12,15 +15,7 @@ exports[`<RoomSummaryCard /> has button to edit topic when expanded 1`] = `
       <header
         class="mx_Flex mx_RoomSummaryCard_header"
         style="--mx-flex-display: flex; --mx-flex-direction: row; --mx-flex-align: center; --mx-flex-justify: space-between; --mx-flex-gap: var(--cpd-space-3x);"
-      >
-        <div
-          aria-label="Close"
-          class="mx_AccessibleButton mx_BaseCard_close"
-          data-testid="base-card-close-button"
-          role="button"
-          tabindex="0"
       />
-      </header>
       <header
         class="mx_RoomSummaryCard_container"
       >
@@ -244,36 +239,6 @@ exports[`<RoomSummaryCard /> has button to edit topic when expanded 1`] = `
           data-orientation="horizontal"
           role="separator"
         />
-        <button
-          class="_item_1gwvj_17 _interactive_1gwvj_36"
-          data-kind="primary"
-          role="menuitem"
-        >
-          <div
-            aria-hidden="true"
-            class="_icon_1gwvj_44"
-            height="24"
-            width="24"
-          />
-          <span
-            class="_typography_yh5dq_162 _font-body-md-medium_yh5dq_69 _label_1gwvj_53"
-          >
-            People
-          </span>
-          <svg
-            aria-hidden="true"
-            class="_nav-hint_1gwvj_60"
-            fill="currentColor"
-            height="24"
-            viewBox="8 0 8 24"
-            width="8"
-            xmlns="http://www.w3.org/2000/svg"
-          >
-            <path
-              d="M8.7 17.3a.948.948 0 0 1-.275-.7.95.95 0 0 1 .275-.7l3.9-3.9-3.9-3.9a.948.948 0 0 1-.275-.7.95.95 0 0 1 .275-.7.948.948 0 0 1 .7-.275.95.95 0 0 1 .7.275l4.6 4.6c.1.1.17.208.213.325.041.117.062.242.062.375s-.02.258-.063.375a.876.876 0 0 1-.212.325l-4.6 4.6a.948.948 0 0 1-.7.275.948.948 0 0 1-.7-.275Z"
-            />
-          </svg>
-        </button>
         <button
           class="_item_1gwvj_17 _interactive_1gwvj_36"
           data-kind="primary"
@@ -423,7 +388,10 @@ exports[`<RoomSummaryCard /> has button to edit topic when expanded 1`] = `
 exports[`<RoomSummaryCard /> renders the room summary 1`] = `
 <div>
   <div
+    aria-labelledby="room-summary-panel-tab"
     class="mx_BaseCard mx_RoomSummaryCard"
+    id="room-summary-panel"
+    role="tabpanel"
   >
     <div
       class="mx_AutoHideScrollbar"
@@ -432,15 +400,7 @@ exports[`<RoomSummaryCard /> renders the room summary 1`] = `
       <header
         class="mx_Flex mx_RoomSummaryCard_header"
         style="--mx-flex-display: flex; --mx-flex-direction: row; --mx-flex-align: center; --mx-flex-justify: space-between; --mx-flex-gap: var(--cpd-space-3x);"
-      >
-        <div
-          aria-label="Close"
-          class="mx_AccessibleButton mx_BaseCard_close"
-          data-testid="base-card-close-button"
-          role="button"
-          tabindex="0"
       />
-      </header>
       <header
         class="mx_RoomSummaryCard_container"
       >
@@ -637,36 +597,6 @@ exports[`<RoomSummaryCard /> renders the room summary 1`] = `
           data-orientation="horizontal"
           role="separator"
         />
-        <button
-          class="_item_1gwvj_17 _interactive_1gwvj_36"
-          data-kind="primary"
-          role="menuitem"
-        >
-          <div
-            aria-hidden="true"
-            class="_icon_1gwvj_44"
-            height="24"
-            width="24"
-          />
-          <span
-            class="_typography_yh5dq_162 _font-body-md-medium_yh5dq_69 _label_1gwvj_53"
-          >
-            People
-          </span>
-          <svg
-            aria-hidden="true"
-            class="_nav-hint_1gwvj_60"
-            fill="currentColor"
-            height="24"
-            viewBox="8 0 8 24"
-            width="8"
-            xmlns="http://www.w3.org/2000/svg"
-          >
-            <path
-              d="M8.7 17.3a.948.948 0 0 1-.275-.7.95.95 0 0 1 .275-.7l3.9-3.9-3.9-3.9a.948.948 0 0 1-.275-.7.95.95 0 0 1 .275-.7.948.948 0 0 1 .7-.275.95.95 0 0 1 .7.275l4.6 4.6c.1.1.17.208.213.325.041.117.062.242.062.375s-.02.258-.063.375a.876.876 0 0 1-.212.325l-4.6 4.6a.948.948 0 0 1-.7.275.948.948 0 0 1-.7-.275Z"
-            />
-          </svg>
-        </button>
         <button
           class="_item_1gwvj_17 _interactive_1gwvj_36"
           data-kind="primary"
@@ -816,7 +746,10 @@ exports[`<RoomSummaryCard /> renders the room summary 1`] = `
 exports[`<RoomSummaryCard /> renders the room topic in the summary 1`] = `
 <div>
   <div
+    aria-labelledby="room-summary-panel-tab"
     class="mx_BaseCard mx_RoomSummaryCard"
+    id="room-summary-panel"
+    role="tabpanel"
   >
     <div
       class="mx_AutoHideScrollbar"
@@ -825,15 +758,7 @@ exports[`<RoomSummaryCard /> renders the room topic in the summary 1`] = `
       <header
         class="mx_Flex mx_RoomSummaryCard_header"
         style="--mx-flex-display: flex; --mx-flex-direction: row; --mx-flex-align: center; --mx-flex-justify: space-between; --mx-flex-gap: var(--cpd-space-3x);"
-      >
-        <div
-          aria-label="Close"
-          class="mx_AccessibleButton mx_BaseCard_close"
-          data-testid="base-card-close-button"
-          role="button"
-          tabindex="0"
       />
-      </header>
       <header
         class="mx_RoomSummaryCard_container"
       >
@@ -1041,36 +966,6 @@ exports[`<RoomSummaryCard /> renders the room topic in the summary 1`] = `
           data-orientation="horizontal"
           role="separator"
         />
-        <button
-          class="_item_1gwvj_17 _interactive_1gwvj_36"
-          data-kind="primary"
-          role="menuitem"
-        >
-          <div
-            aria-hidden="true"
-            class="_icon_1gwvj_44"
-            height="24"
-            width="24"
-          />
-          <span
-            class="_typography_yh5dq_162 _font-body-md-medium_yh5dq_69 _label_1gwvj_53"
-          >
-            People
-          </span>
-          <svg
-            aria-hidden="true"
-            class="_nav-hint_1gwvj_60"
-            fill="currentColor"
-            height="24"
-            viewBox="8 0 8 24"
-            width="8"
-            xmlns="http://www.w3.org/2000/svg"
-          >
-            <path
-              d="M8.7 17.3a.948.948 0 0 1-.275-.7.95.95 0 0 1 .275-.7l3.9-3.9-3.9-3.9a.948.948 0 0 1-.275-.7.95.95 0 0 1 .275-.7.948.948 0 0 1 .7-.275.95.95 0 0 1 .7.275l4.6 4.6c.1.1.17.208.213.325.041.117.062.242.062.375s-.02.258-.063.375a.876.876 0 0 1-.212.325l-4.6 4.6a.948.948 0 0 1-.7.275.948.948 0 0 1-.7-.275Z"
-            />
-          </svg>
-        </button>
         <button
           class="_item_1gwvj_17 _interactive_1gwvj_36"
           data-kind="primary"

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

@@ -216,6 +216,13 @@ describe("RoomHeader", () => {
         expect(setCardSpy).toHaveBeenCalledWith({ phase: RightPanelPhases.RoomMemberList });
     });
 
+    it("has room info icon that opens the room info panel", async () => {
+        const { getAllByRole } = render(<RoomHeader room={room} />, getWrapper());
+        const infoButton = getAllByRole("button", { name: "Room info" })[1];
+        fireEvent.click(infoButton);
+        expect(setCardSpy).toHaveBeenCalledWith({ phase: RightPanelPhases.RoomSummary });
+    });
+
     it("opens the thread panel", async () => {
         const { container } = render(<RoomHeader room={room} />, getWrapper());
 

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

@@ -73,6 +73,20 @@ exports[`RoomHeader does not show the face pile for DMs 1`] = `
           <div />
         </div>
       </button>
+      <button
+        aria-label="Room info"
+        class="_icon-button_rijzz_17"
+        role="button"
+        style="--cpd-icon-button-size: 32px;"
+        tabindex="0"
+      >
+        <div
+          class="_indicator-icon_133tf_26"
+          style="--cpd-icon-button-size: 100%;"
+        >
+          <div />
+        </div>
+      </button>
       <button
         aria-label="Threads"
         class="_icon-button_rijzz_17"

test/stores/right-panel/RightPanelStore-test.ts

@@ -225,4 +225,22 @@ describe("RightPanelStore", () => {
         await viewRoom("!1:example.org");
         expect(store.currentCardForRoom("!1:example.org").phase).toEqual(RightPanelPhases.RoomMemberList);
     });
+
+    it("showOrHidePhase works as expected", async () => {
+        await viewRoom("!1:example.org");
+
+        // Open the memberlist panel
+        store.showOrHidePanel(RightPanelPhases.RoomMemberList);
+        expect(store.isOpenForRoom("!1:example.org")).toEqual(true);
+        expect(store.currentCardForRoom("!1:example.org").phase).toEqual(RightPanelPhases.RoomMemberList);
+
+        // showOrHide with RoomSummary should now close the panel
+        store.showOrHidePanel(RightPanelPhases.RoomSummary);
+        expect(store.isOpenForRoom("!1:example.org")).toEqual(false);
+
+        // showOrHide with RoomSummary should now open the panel
+        store.showOrHidePanel(RightPanelPhases.RoomSummary);
+        expect(store.isOpenForRoom("!1:example.org")).toEqual(true);
+        expect(store.currentCardForRoom("!1:example.org").phase).toEqual(RightPanelPhases.RoomSummary);
+    });
 });

test/stores/right-panel/action-handlers/View3pidInvite-test.ts

@@ -28,7 +28,7 @@ describe("onView3pidInvite()", () => {
     beforeEach(() => {
         rightPanelStore = {
             pushCard: jest.fn(),
-            showOrHidePanel: jest.fn(),
+            showOrHidePhase: jest.fn(),
         } as unknown as MockedObject<RightPanelStore>;
     });
 
@@ -38,7 +38,7 @@ describe("onView3pidInvite()", () => {
         };
         onView3pidInvite(payload, rightPanelStore);
 
-        expect(rightPanelStore.showOrHidePanel).toHaveBeenCalledWith(RightPanelPhases.RoomMemberList);
+        expect(rightPanelStore.showOrHidePhase).toHaveBeenCalledWith(RightPanelPhases.RoomMemberList);
         expect(rightPanelStore.pushCard).not.toHaveBeenCalled();
     });
 
@@ -49,7 +49,7 @@ describe("onView3pidInvite()", () => {
         };
         onView3pidInvite(payload, rightPanelStore);
 
-        expect(rightPanelStore.showOrHidePanel).not.toHaveBeenCalled();
+        expect(rightPanelStore.showOrHidePhase).not.toHaveBeenCalled();
         expect(rightPanelStore.pushCard).toHaveBeenCalledWith({
             phase: RightPanelPhases.Room3pidMemberInfo,
             state: { memberInfoEvent: payload.event },

yarn.lock

@@ -3040,10 +3040,10 @@
   dependencies:
     svg2vectordrawable "^2.9.1"
 
-"@vector-im/compound-web@^5.1.2":
+"@vector-im/compound-web@^5.2.3":
-  version "5.1.2"
+  version "5.2.3"
-  resolved "https://registry.yarnpkg.com/@vector-im/compound-web/-/compound-web-5.1.2.tgz#2ee3d859819e153c898770c058a4277c0b8ef3b8"
+  resolved "https://registry.yarnpkg.com/@vector-im/compound-web/-/compound-web-5.2.3.tgz#feab8ae7623cfaa243b9be69325e1696bfa1a09c"
-  integrity sha512-p7ide2JRblCkcSMPNakkWjK9GxA8boMQCEgXCT7Dp+owhONf2QsYpyRzlW+tPZ3DULd+h4nqWRova4uSeZtBbA==
+  integrity sha512-KU5vAgNIFBzRHfCRK5dGAhxjrfkrUXeOYzDUNc2QjEnqGaUR3RM4c53sw0Ga1oHbOeAWoUGId+ptH3ewPdUTAQ==
   dependencies:
     "@floating-ui/react" "^0.26.9"
     "@floating-ui/react-dom" "^2.0.8"
@@ -3054,6 +3054,7 @@
     "@radix-ui/react-slot" "^1.0.2"
     "@radix-ui/react-tooltip" "^1.0.6"
     classnames "^2.3.2"
+    ts-xor "^1.3.0"
     vaul "^0.7.0"
 
 "@zxcvbn-ts/core@^3.0.4":
@@ -8475,16 +8476,7 @@ string-length@^4.0.1:
     char-regex "^1.0.2"
     strip-ansi "^6.0.0"
 
-"string-width-cjs@npm:string-width@^4.2.0":
+"string-width-cjs@npm:string-width@^4.2.0", string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.3:
-  version "4.2.3"
-  resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
-  integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
-  dependencies:
-    emoji-regex "^8.0.0"
-    is-fullwidth-code-point "^3.0.0"
-    strip-ansi "^6.0.1"
-
-string-width@^4.1.0, string-width@^4.2.0, string-width@^4.2.3:
   version "4.2.3"
   resolved "https://registry.yarnpkg.com/string-width/-/string-width-4.2.3.tgz#269c7117d27b05ad2e536830a8ec895ef9c6d010"
   integrity sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==
@@ -8571,14 +8563,7 @@ string_decoder@~1.1.1:
   dependencies:
     safe-buffer "~5.1.0"
 
-"strip-ansi-cjs@npm:strip-ansi@^6.0.1":
+"strip-ansi-cjs@npm:strip-ansi@^6.0.1", strip-ansi@^6.0.0, strip-ansi@^6.0.1:
-  version "6.0.1"
-  resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
-  integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
-  dependencies:
-    ansi-regex "^5.0.1"
-
-strip-ansi@^6.0.0, strip-ansi@^6.0.1:
   version "6.0.1"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-6.0.1.tgz#9e26c63d30f53443e9489495b2105d37b67a85d9"
   integrity sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==
@@ -8921,6 +8906,11 @@ ts-node@^10.9.1:
     v8-compile-cache-lib "^3.0.1"
     yn "3.1.1"
 
+ts-xor@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/ts-xor/-/ts-xor-1.3.0.tgz#3e59f24f0321f9f10f350e0cee3b534b89a2c70b"
+  integrity sha512-RLXVjliCzc1gfKQFLRpfeD0rrWmjnSTgj7+RFhoq3KRkUYa8LE/TIidYOzM5h+IdFBDSjjSgk9Lto9sdMfDFEA==
+
 tsconfig-paths@^3.15.0:
   version "3.15.0"
   resolved "https://registry.yarnpkg.com/tsconfig-paths/-/tsconfig-paths-3.15.0.tgz#5299ec605e55b1abb23ec939ef15edaf483070d4"
@@ -9372,7 +9362,7 @@ which@^2.0.1:
   dependencies:
     isexe "^2.0.0"
 
-"wrap-ansi-cjs@npm:wrap-ansi@^7.0.0":
+"wrap-ansi-cjs@npm:wrap-ansi@^7.0.0", wrap-ansi@^7.0.0:
   version "7.0.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
   integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==
@@ -9390,15 +9380,6 @@ wrap-ansi@^6.2.0:
     string-width "^4.1.0"
     strip-ansi "^6.0.0"
 
-wrap-ansi@^7.0.0:
-  version "7.0.0"
-  resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-7.0.0.tgz#67e145cff510a6a6984bdf1152911d69d2eb9e43"
-  integrity sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==
-  dependencies:
-    ansi-styles "^4.0.0"
-    string-width "^4.1.0"
-    strip-ansi "^6.0.0"
-
 wrap-ansi@^8.1.0:
   version "8.1.0"
   resolved "https://registry.yarnpkg.com/wrap-ansi/-/wrap-ansi-8.1.0.tgz#56dc22368ee570face1b49819975d9b9a5ead214"