Avoid showing two chat timelines side by side after a call

src/components/structures/RoomView.tsx

@@ -647,13 +647,12 @@ export class RoomView extends React.Component<IRoomProps, IRoomState> {
         };
 
         if (
-            this.state.mainSplitContentType !== MainSplitContentType.Timeline &&
             newState.mainSplitContentType === MainSplitContentType.Timeline &&
             this.context.rightPanelStore.isOpen &&
             this.context.rightPanelStore.currentCard.phase === RightPanelPhases.Timeline &&
             this.context.rightPanelStore.roomPhaseHistory.some((card) => card.phase === RightPanelPhases.Timeline)
         ) {
-            // We're returning to the main timeline, so hide the right panel timeline
+            // The main split shows the main timeline, so hide the right panel timeline
             this.context.rightPanelStore.setCard({ phase: RightPanelPhases.RoomSummary });
             this.context.rightPanelStore.togglePanel(this.state.roomId ?? null);
             newState.showRightPanel = false;

test/test-utils/test-utils.ts

@@ -186,6 +186,7 @@ export function createTestClient(): MatrixClient {
         peekInRoom: jest.fn().mockResolvedValue(mkStubRoom(undefined, undefined, undefined)),
         stopPeeking: jest.fn(),
 
+        getEventTimeline: jest.fn().mockResolvedValue([]),
         paginateEventTimeline: jest.fn().mockResolvedValue(undefined),
         sendReadReceipt: jest.fn().mockResolvedValue(undefined),
         getRoomIdForAlias: jest.fn().mockResolvedValue(undefined),

test/unit-tests/components/structures/RoomView-test.tsx

@@ -24,7 +24,7 @@ import {
 } from "matrix-js-sdk/src/matrix";
 import { type CryptoApi, CryptoEvent, UserVerificationStatus } from "matrix-js-sdk/src/crypto-api";
 import { KnownMembership } from "matrix-js-sdk/src/types";
-import { act, cleanup, fireEvent, render, type RenderResult, screen, waitFor } from "jest-matrix-react";
+import { act, cleanup, fireEvent, render, type RenderResult, screen, waitFor, findByRole } from "jest-matrix-react";
 import userEvent from "@testing-library/user-event";
 
 import {
@@ -643,6 +643,90 @@ describe("RoomView", () => {
         });
     });
 
+    describe("group calls", () => {
+        beforeEach(async () => {
+            await setupAsyncStoreWithClient(CallStore.instance, MatrixClientPeg.safeGet());
+            jest.spyOn(room, "getMyMembership").mockReturnValue(KnownMembership.Join);
+        });
+
+        it("hides the right panel chat when closing a call", async () => {
+            await mountRoomView();
+
+            // Open the call
+            await act(() =>
+                stores.roomViewStore.viewRoom({
+                    action: Action.ViewRoom,
+                    room_id: stores.roomViewStore.getRoomId()!,
+                    event_id: "$eventId",
+                    metricsTrigger: undefined,
+                    view_call: true,
+                }),
+            );
+            // Open the chat in the right panel
+            act(() => stores.rightPanelStore.setCard({ phase: RightPanelPhases.Timeline }));
+            // Chat should be visible in the right panel
+            await findByRole(await screen.findByRole("complementary"), "heading", { name: "Chat" });
+
+            // Close the call
+            await act(() =>
+                stores.roomViewStore.viewRoom({
+                    action: Action.ViewRoom,
+                    room_id: stores.roomViewStore.getRoomId()!,
+                    event_id: "$eventId",
+                    metricsTrigger: undefined,
+                    view_call: false,
+                }),
+            );
+            // Right panel should be gone
+            expect(screen.queryByRole("complementary")).toBe(null);
+            // Opening the right panel again should just show the room summary
+            act(() => stores.rightPanelStore.show(room.roomId));
+            await findByRole(await screen.findByRole("complementary"), "heading", { name: room.roomId });
+        });
+
+        it("hides the right panel chat when returning to a room that previously showed a call", async () => {
+            const room2 = new Room(`!roomswitchtest:example.org`, cli, "@alice:example.org");
+            rooms.set(room2.roomId, room2);
+            await mountRoomView();
+
+            // Open the call
+            await act(() =>
+                stores.roomViewStore.viewRoom({
+                    action: Action.ViewRoom,
+                    room_id: room.roomId,
+                    event_id: "$eventId",
+                    metricsTrigger: undefined,
+                    view_call: true,
+                }),
+            );
+            // Open the chat in the right panel
+            act(() => stores.rightPanelStore.setCard({ phase: RightPanelPhases.Timeline }));
+            // Chat should be visible in the right panel
+            await findByRole(await screen.findByRole("complementary"), "heading", { name: "Chat" });
+
+            // Navigate away to another room
+            await act(() =>
+                stores.roomViewStore.viewRoom({
+                    action: Action.ViewRoom,
+                    room_id: room2.roomId,
+                    event_id: "$eventId",
+                    metricsTrigger: undefined,
+                }),
+            );
+            // Navigate back to the original room
+            await act(() =>
+                stores.roomViewStore.viewRoom({
+                    action: Action.ViewRoom,
+                    room_id: room.roomId,
+                    event_id: "$eventId",
+                    metricsTrigger: undefined,
+                }),
+            );
+            // Right panel should be gone
+            expect(screen.queryByRole("complementary")).toBe(null);
+        });
+    });
+
     describe("for a local room", () => {
         let localRoom: LocalRoom;
 

test/unit-tests/components/structures/__snapshots__/RoomView-test.tsx.snap

@@ -212,7 +212,7 @@ exports[`RoomView for a local room in state ERROR should match the snapshot 1`]
         </div>
       </div>
       <div
-        aria-labelledby="_r_ti_"
+        aria-labelledby="_r_1c3_"
         class="_banner_17clp_8"
         data-type="critical"
         role="status"
@@ -238,7 +238,7 @@ exports[`RoomView for a local room in state ERROR should match the snapshot 1`]
         >
           <p
             class="_typography_6v6n8_153 _font-body-md-semibold_6v6n8_55 _container_mqidv_1"
-            id="_r_ti_"
+            id="_r_1c3_"
           >
             Could not start a chat with this user
           </p>
@@ -417,7 +417,7 @@ exports[`RoomView for a local room in state NEW should match the snapshot 1`] =
             >
               <svg
                 aria-label="Messages in this room are not end-to-end encrypted"
-                aria-labelledby="_r_qm_"
+                aria-labelledby="_r_197_"
                 class="mx_E2EIcon mx_MessageComposer_e2eIcon"
                 color="var(--cpd-color-icon-info-primary)"
                 fill="currentColor"