Allow finding group DMs by members in spotlight (#8922)

cypress/integration/12-spotlight/spotlight.spec.ts

@@ -156,6 +156,7 @@ describe("Spotlight", () => {
     });
 
     afterEach(() => {
+        cy.visit("/#/home");
         cy.stopSynapse(synapse);
     });
 
@@ -264,6 +265,47 @@ describe("Spotlight", () => {
         });
     });
 
+    it("should find group DMs by usernames or user ids", () => {
+        // First we want to share a room with both bots to ensure we’ve got their usernames cached
+        cy.inviteUser(room1Id, bot2.getUserId());
+
+        // Starting a DM with ByteBot (will be turned into a group dm later)
+        cy.openSpotlightDialog().within(() => {
+            cy.spotlightFilter(Filter.People);
+            cy.spotlightSearch().clear().type(bot2Name);
+            cy.spotlightResults().should("have.length", 1);
+            cy.spotlightResults().eq(0).should("contain", bot2Name);
+            cy.spotlightResults().eq(0).click();
+        }).then(() => {
+            cy.roomHeaderName().should("contain", bot2Name);
+            cy.get(".mx_RoomSublist[aria-label=People]").should("contain", bot2Name);
+        });
+
+        // Invite BotBob into existing DM with ByteBot
+        cy.getDmRooms(bot2.getUserId()).then(dmRooms => dmRooms[0])
+            .then(groupDmId => cy.inviteUser(groupDmId, bot1.getUserId()))
+            .then(() => {
+                cy.roomHeaderName().should("contain", `${bot1Name} and ${bot2Name}`);
+                cy.get(".mx_RoomSublist[aria-label=People]").should("contain", `${bot1Name} and ${bot2Name}`);
+            });
+
+        // Search for BotBob by id, should return group DM and user
+        cy.openSpotlightDialog().within(() => {
+            cy.spotlightFilter(Filter.People);
+            cy.spotlightSearch().clear().type(bot1.getUserId());
+            cy.spotlightResults().should("have.length", 2);
+            cy.spotlightResults().eq(0).should("contain", `${bot1Name} and ${bot2Name}`);
+        });
+
+        // Search for ByteBot by id, should return group DM and user
+        cy.openSpotlightDialog().within(() => {
+            cy.spotlightFilter(Filter.People);
+            cy.spotlightSearch().clear().type(bot2.getUserId());
+            cy.spotlightResults().should("have.length", 2);
+            cy.spotlightResults().eq(0).should("contain", `${bot1Name} and ${bot2Name}`);
+        });
+    });
+
     it("should allow opening group chat dialog", () => {
         cy.openSpotlightDialog().within(() => {
             cy.spotlightFilter(Filter.People);

cypress/support/client.ts

@@ -53,6 +53,12 @@ declare global {
              * @param data The data to store.
              */
             setAccountData(type: string, data: object): Chainable<{}>;
+            /**
+             * Gets the list of DMs with a given user
+             * @param userId The ID of the user
+             * @return the list of DMs with that user
+             */
+            getDmRooms(userId: string): Chainable<string[]>;
             /**
              * Boostraps cross-signing.
              */
@@ -65,6 +71,12 @@ Cypress.Commands.add("getClient", (): Chainable<MatrixClient | undefined> => {
     return cy.window({ log: false }).then(win => win.mxMatrixClientPeg.matrixClient);
 });
 
+Cypress.Commands.add("getDmRooms", (userId: string): Chainable<string[]> => {
+    return cy.getClient()
+        .then(cli => cli.getAccountData("m.direct")?.getContent<Record<string, string[]>>())
+        .then(dmRoomMap => dmRoomMap[userId] ?? []);
+});
+
 Cypress.Commands.add("createRoom", (options: ICreateRoomOpts): Chainable<string> => {
     return cy.window({ log: false }).then(async win => {
         const cli = win.mxMatrixClientPeg.matrixClient;

src/components/views/dialogs/spotlight/SpotlightDialog.tsx

@@ -177,16 +177,20 @@ const toPublicRoomResult = (publicRoom: IPublicRoomsChunkRoom): IPublicRoomResul
 });
 
 const toRoomResult = (room: Room): IRoomResult => {
+    const myUserId = MatrixClientPeg.get().getUserId();
     const otherUserId = DMRoomMap.shared().getUserIdForRoomId(room.roomId);
+
     if (otherUserId) {
+        const otherMembers = room.getMembers().filter(it => it.userId !== myUserId);
+        const query = [
+            ...otherMembers.map(it => it.name.toLowerCase()),
+            ...otherMembers.map(it => it.userId.toLowerCase()),
+        ].filter(Boolean);
         return {
             room,
             section: Section.People,
             filter: [Filter.People],
-            query: [
-                otherUserId.toLowerCase(),
-                room.getMember(otherUserId)?.name.toLowerCase(),
-            ].filter(Boolean),
+            query,
         };
     } else if (room.isSpaceRoom()) {
         return {

src/utils/i18n-helpers.ts

@@ -44,7 +44,9 @@ export function roomContextDetailsText(room: Room): string {
     if (room.isSpaceRoom()) return undefined;
 
     const dmPartner = DMRoomMap.shared().getUserIdForRoomId(room.roomId);
-    if (dmPartner) {
+    // if we’ve got more than 2 users, don’t treat it like a regular DM
+    const isGroupDm = room.getMembers().length > 2;
+    if (dmPartner && !isGroupDm) {
         return dmPartner;
     }