Add message preview toggle to room list header option (#31821)

* feat: add message preview action to room list header option

https://github.com/element-hq/element-web/issues/31214

* test: add e2e test

packages/shared-components/src/i18n/strings/en_EN.json

@@ -44,8 +44,10 @@
         }
     },
     "room_list": {
+        "appearance": "Appearance",
         "open_space_menu": "Open space menu",
         "room_options": "Room Options",
+        "show_message_previews": "Show message previews",
         "sort": "Sort",
         "sort_type": {
             "activity": "Activity",

packages/shared-components/src/room-list/RoomListHeaderView/RoomListHeaderView.stories.tsx

@@ -28,6 +28,7 @@ const RoomListHeaderViewWrapper = ({
     inviteInSpace,
     openSpacePreferences,
     sort,
+    toggleMessagePreview,
     ...rest
 }: RoomListHeaderProps): JSX.Element => {
     const vm = useMockedViewModel(rest, {
@@ -39,6 +40,7 @@ const RoomListHeaderViewWrapper = ({
         inviteInSpace,
         sort,
         openSpacePreferences,
+        toggleMessagePreview,
     });
     return <RoomListHeaderView vm={vm} />;
 };
@@ -57,6 +59,7 @@ export default {
         inviteInSpace: fn(),
         sort: fn(),
         openSpacePreferences: fn(),
+        toggleMessagePreview: fn(),
     },
     parameters: {
         design: {

packages/shared-components/src/room-list/RoomListHeaderView/RoomListHeaderView.tsx

@@ -56,6 +56,10 @@ export interface RoomListHeaderViewSnapshot {
      * The currently active sort option.
      */
     activeSortOption: SortOption;
+    /**
+     * Whether message previews are enabled in the room list.
+     */
+    isMessagePreviewEnabled: boolean;
 }
 
 export interface RoomListHeaderViewActions {
@@ -91,6 +95,10 @@ export interface RoomListHeaderViewActions {
      * Change the sort order of the room-list.
      */
     sort: (option: SortOption) => void;
+    /**
+     * Toggle message preview display in the room list.
+     */
+    toggleMessagePreview: () => void;
 }
 
 /**

packages/shared-components/src/room-list/RoomListHeaderView/menu/OptionMenuView.test.tsx

@@ -77,4 +77,17 @@ describe("<OptionMenuView />", () => {
 
         expect(vm.sort).toHaveBeenCalledWith("recent");
     });
+
+    it("should toggle message preview", async () => {
+        const user = userEvent.setup();
+
+        const vm = new MockedViewModel({ ...defaultSnapshot, isMessagePreviewEnabled: true });
+        render(<OptionMenuView vm={vm} />);
+
+        await user.click(screen.getByRole("button", { name: "Room Options" }));
+        expect(screen.getByRole("menuitemcheckbox", { name: "Show message previews" })).toBeChecked();
+
+        await user.click(screen.getByRole("menuitemcheckbox", { name: "Show message previews" }));
+        expect(vm.toggleMessagePreview).toHaveBeenCalled();
+    });
 });

packages/shared-components/src/room-list/RoomListHeaderView/menu/OptionMenuView.tsx

@@ -5,7 +5,7 @@
  * Please see LICENSE files in the repository root for full details.
  */
 
-import { IconButton, Menu, MenuTitle, RadioMenuItem } from "@vector-im/compound-web";
+import { CheckboxMenuItem, IconButton, Menu, MenuTitle, RadioMenuItem } from "@vector-im/compound-web";
 import React, { type JSX, useState } from "react";
 import OverflowHorizontalIcon from "@vector-im/compound-design-tokens/assets/web/icons/overflow-horizontal";
 
@@ -33,7 +33,7 @@ interface OptionMenuViewProps {
 export function OptionMenuView({ vm }: OptionMenuViewProps): JSX.Element {
     const { translate: _t } = useI18n();
     const [open, setOpen] = useState(false);
-    const { activeSortOption } = useViewModel(vm);
+    const { activeSortOption, isMessagePreviewEnabled } = useViewModel(vm);
 
     return (
         <Menu
@@ -65,6 +65,12 @@ export function OptionMenuView({ vm }: OptionMenuViewProps): JSX.Element {
                 checked={activeSortOption === "alphabetical"}
                 onSelect={() => vm.sort("alphabetical")}
             />
+            <MenuTitle title={_t("room_list|appearance")} />
+            <CheckboxMenuItem
+                label={_t("room_list|show_message_previews")}
+                onSelect={vm.toggleMessagePreview}
+                checked={isMessagePreviewEnabled}
+            />
         </Menu>
     );
 }

packages/shared-components/src/room-list/RoomListHeaderView/test-utils.ts

@@ -20,6 +20,7 @@ export class MockedViewModel extends MockViewModel<RoomListHeaderViewSnapshot> i
     public inviteInSpace = jest.fn();
     public sort = jest.fn();
     public openSpacePreferences = jest.fn();
+    public toggleMessagePreview = jest.fn();
 }
 
 export const defaultSnapshot: RoomListHeaderViewSnapshot = {
@@ -31,4 +32,5 @@ export const defaultSnapshot: RoomListHeaderViewSnapshot = {
     canInviteInSpace: true,
     canAccessSpaceSettings: true,
     activeSortOption: "recent",
+    isMessagePreviewEnabled: true,
 };

playwright/e2e/left-panel/room-list-panel/room-list.spec.ts

@@ -8,6 +8,8 @@
 import { type Page } from "@playwright/test";
 
 import { expect, test } from "../../../element-web-test";
+import { type Bot } from "../../../pages/bot";
+import { type ElementAppPage } from "../../../pages/ElementAppPage";
 
 test.describe("Room list", () => {
     test.use({
@@ -392,13 +394,8 @@ test.describe("Room list", () => {
             await expect(room).toMatchScreenshot("room-list-item-mention.png");
         });
 
-        test("should render a message preview", { tag: "@screenshot" }, async ({ page, app, user, bot }) => {
-            await app.settings.openUserSettings("Preferences");
-            await page.getByRole("switch", { name: "Show message previews" }).click();
-            await app.closeDialog();
-
+        async function checkMessagePreview(page: Page, app: ElementAppPage, bot: Bot) {
             const roomListView = getRoomList(page);
-
             const roomId = await app.client.createRoom({ name: "activity" });
 
             // focus the user menu to avoid to have hover decoration
@@ -411,7 +408,30 @@ test.describe("Room list", () => {
             const room = roomListView.getByRole("option", { name: "activity" });
             await expect(room.getByText("I am a robot. Beep.")).toBeVisible();
             await expect(room).toMatchScreenshot("room-list-item-message-preview.png");
-        });
+        }
+
+        test(
+            "should render a message preview when enable in settings",
+            { tag: "@screenshot" },
+            async ({ page, app, user, bot }) => {
+                await app.settings.openUserSettings("Preferences");
+                await page.getByRole("switch", { name: "Show message previews" }).click();
+                await app.closeDialog();
+
+                await checkMessagePreview(page, app, bot);
+            },
+        );
+
+        test(
+            "should render a message preview when enabled in header",
+            { tag: "@screenshot" },
+            async ({ page, app, user, bot }) => {
+                await page.getByRole("button", { name: "Room Options" }).click();
+                await page.getByRole("menuitemcheckbox", { name: "Show message previews" }).click();
+
+                await checkMessagePreview(page, app, bot);
+            },
+        );
 
         test("should render an activity decoration", { tag: "@screenshot" }, async ({ page, app, user, bot }) => {
             const roomListView = getRoomList(page);

src/viewmodels/room-list/RoomListHeaderViewModel.ts

@@ -30,12 +30,16 @@ import { createRoom, hasCreateRoomRights } from "../../components/viewmodels/roo
 import SettingsStore from "../../settings/SettingsStore";
 import RoomListStoreV3 from "../../stores/room-list-v3/RoomListStoreV3";
 import { SortingAlgorithm } from "../../stores/room-list-v3/skip-list/sorters";
+import { SettingLevel } from "../../settings/SettingLevel";
 
 export interface Props {
     /**
      * The Matrix client instance.
      */
     matrixClient: MatrixClient;
+    /**
+     * The space store instance.
+     */
     spaceStore: SpaceStoreClass;
 }
 
@@ -170,6 +174,12 @@ export class RoomListHeaderViewModel
         RoomListStoreV3.instance.resort(sortingAlgorithm);
         this.snapshot.merge({ activeSortOption: option });
     };
+
+    public toggleMessagePreview = (): void => {
+        const isMessagePreviewEnabled = SettingsStore.getValue("RoomList.showMessagePreview");
+        SettingsStore.setValue("RoomList.showMessagePreview", null, SettingLevel.DEVICE, !isMessagePreviewEnabled);
+        this.snapshot.merge({ isMessagePreviewEnabled });
+    };
 }
 
 /**
@@ -182,9 +192,11 @@ function getInitialSnapshot(spaceStore: SpaceStoreClass, matrixClient: MatrixCli
     const sortingAlgorithm = SettingsStore.getValue("RoomList.preferredSorting");
     const activeSortOption =
         sortingAlgorithm === SortingAlgorithm.Recency ? ("recent" as const) : ("alphabetical" as const);
+    const isMessagePreviewEnabled = SettingsStore.getValue("RoomList.showMessagePreview");
 
     return {
         activeSortOption,
+        isMessagePreviewEnabled,
         ...computeHeaderSpaceState(spaceStore, matrixClient),
     };
 }
@@ -216,7 +228,7 @@ function getCanCreateVideoRoom(canCreateRoom: boolean): boolean {
 function computeHeaderSpaceState(
     spaceStore: SpaceStoreClass,
     matrixClient: MatrixClient,
-): Omit<RoomListHeaderViewSnapshot, "activeSortOption"> {
+): Omit<RoomListHeaderViewSnapshot, "activeSortOption" | "isMessagePreviewEnabled"> {
     const activeSpace = spaceStore.activeSpaceRoom;
     const title = getHeaderTitle(spaceStore);
 

test/viewmodels/room-list/RoomListHeaderViewModel-test.ts

@@ -148,6 +148,16 @@ describe("RoomListHeaderViewModel", () => {
             vm = new RoomListHeaderViewModel({ matrixClient, spaceStore: SpaceStore.instance });
             expect(vm.getSnapshot().canAccessSpaceSettings).toBe(false);
         });
+
+        it("should show message preview when RoomList.showMessagePreview is enabled", () => {
+            jest.spyOn(SettingsStore, "getValue").mockImplementation((settingName: string) => {
+                if (settingName === "RoomList.showMessagePreview") return true;
+                return false;
+            });
+
+            vm = new RoomListHeaderViewModel({ matrixClient, spaceStore: SpaceStore.instance });
+            expect(vm.getSnapshot().isMessagePreviewEnabled).toBe(true);
+        });
     });
 
     describe("event listeners", () => {
@@ -268,5 +278,20 @@ describe("RoomListHeaderViewModel", () => {
 
             expect(resortSpy).toHaveBeenCalledWith(expectedAlgorithm);
         });
+
+        it("should toggle message preview from enabled to disabled", () => {
+            jest.spyOn(SettingsStore, "getValue").mockImplementation((settingName: string) => {
+                if (settingName === "RoomList.showMessagePreview") return true;
+                return false;
+            });
+            const setValueSpy = jest.spyOn(SettingsStore, "setValue").mockImplementation(jest.fn());
+
+            vm = new RoomListHeaderViewModel({ matrixClient, spaceStore: SpaceStore.instance });
+            expect(vm.getSnapshot().isMessagePreviewEnabled).toBe(true);
+
+            vm.toggleMessagePreview();
+
+            expect(setValueSpy).toHaveBeenCalledWith("RoomList.showMessagePreview", null, expect.anything(), false);
+        });
     });
 });