Improve types for sendStateEvent (#12331)

playwright/e2e/room/room-header.spec.ts

@@ -18,6 +18,7 @@ import { Page } from "@playwright/test";
 
 import { test, expect } from "../../element-web-test";
 import { ElementAppPage } from "../../pages/ElementAppPage";
+import type { Container } from "../../../src/stores/widgets/types";
 
 test.describe("Room Header", () => {
     test.use({
@@ -227,7 +228,7 @@ test.describe("Room Header", () => {
                         {
                             widgets: {
                                 [id]: {
-                                    container: "top",
+                                    container: "top" as Container,
                                     index: 1,
                                     width: 100,
                                     height: 0,

playwright/pages/client.ts

@@ -31,6 +31,7 @@ import type {
     Visibility,
     UploadOpts,
     Upload,
+    StateEvents,
 } from "matrix-js-sdk/src/matrix";
 import { Credentials } from "../plugins/homeserver";
 
@@ -407,7 +408,7 @@ export class Client {
         const client = await this.prepareClient();
         return client.evaluate(
             async (client, { roomId, eventType, content, stateKey }) => {
-                return client.sendStateEvent(roomId, eventType, content, stateKey);
+                return client.sendStateEvent(roomId, eventType as keyof StateEvents, content, stateKey);
             },
             { roomId, eventType, content, stateKey },
         );

src/@types/common.ts

@@ -16,12 +16,7 @@ limitations under the License.
 
 import { JSXElementConstructor } from "react";
 
-export type { NonEmptyArray } from "matrix-js-sdk/src/matrix";
+export type { NonEmptyArray, XOR, Writeable } from "matrix-js-sdk/src/matrix";
-
-// Based on https://stackoverflow.com/a/53229857/3532235
-export type Without<T, U> = { [P in Exclude<keyof T, keyof U>]?: never };
-export type XOR<T, U> = T | U extends object ? (Without<T, U> & U) | (Without<U, T> & T) : T | U;
-export type Writeable<T> = { -readonly [P in keyof T]: T[P] };
 
 export type ComponentClass = keyof JSX.IntrinsicElements | JSXElementConstructor<any>;
 

src/ScalarMessaging.ts

@@ -291,7 +291,7 @@ Response:
 
 */
 
-import { IContent, MatrixEvent, IEvent } from "matrix-js-sdk/src/matrix";
+import { IContent, MatrixEvent, IEvent, StateEvents } from "matrix-js-sdk/src/matrix";
 import { logger } from "matrix-js-sdk/src/logger";
 
 import { MatrixClientPeg } from "./MatrixClientPeg";
@@ -721,7 +721,7 @@ async function getOpenIdToken(event: MessageEvent<any>): Promise<void> {
 
 async function sendEvent(
     event: MessageEvent<{
-        type: string;
+        type: keyof StateEvents;
         state_key?: string;
         content?: IContent;
     }>,

src/SlashCommands.tsx

@@ -18,8 +18,9 @@ limitations under the License.
 */
 
 import * as React from "react";
-import { User, IContent, Direction, ContentHelpers, MRoomTopicEventContent } from "matrix-js-sdk/src/matrix";
+import { ContentHelpers, Direction, EventType, IContent, MRoomTopicEventContent, User } from "matrix-js-sdk/src/matrix";
 import { logger } from "matrix-js-sdk/src/logger";
+import { RoomMemberEventContent } from "matrix-js-sdk/src/types";
 
 import dis from "./dispatcher/dispatcher";
 import { _t, _td, UserFriendlyError } from "./languageHandler";
@@ -239,12 +240,12 @@ export const Commands = [
         isEnabled: (cli) => !isCurrentLocalRoom(cli),
         runFn: function (cli, roomId, threadId, args) {
             if (args) {
-                const ev = cli.getRoom(roomId)?.currentState.getStateEvents("m.room.member", cli.getSafeUserId());
+                const ev = cli.getRoom(roomId)?.currentState.getStateEvents(EventType.RoomMember, cli.getSafeUserId());
-                const content = {
+                const content: RoomMemberEventContent = {
                     ...(ev ? ev.getContent() : { membership: "join" }),
                     displayname: args,
                 };
-                return success(cli.sendStateEvent(roomId, "m.room.member", content, cli.getSafeUserId()));
+                return success(cli.sendStateEvent(roomId, EventType.RoomMember, content, cli.getSafeUserId()));
             }
             return reject(this.getUsage());
         },
@@ -265,7 +266,7 @@ export const Commands = [
             return success(
                 promise.then((url) => {
                     if (!url) return;
-                    return cli.sendStateEvent(roomId, "m.room.avatar", { url }, "");
+                    return cli.sendStateEvent(roomId, EventType.RoomAvatar, { url }, "");
                 }),
             );
         },
@@ -289,12 +290,12 @@ export const Commands = [
             return success(
                 promise.then((url) => {
                     if (!url) return;
-                    const ev = room?.currentState.getStateEvents("m.room.member", userId);
+                    const ev = room?.currentState.getStateEvents(EventType.RoomMember, userId);
-                    const content = {
+                    const content: RoomMemberEventContent = {
                         ...(ev ? ev.getContent() : { membership: "join" }),
                         avatar_url: url,
                     };
-                    return cli.sendStateEvent(roomId, "m.room.member", content, userId);
+                    return cli.sendStateEvent(roomId, EventType.RoomMember, content, userId);
                 }),
             );
         },

src/components/structures/SpaceHierarchy.tsx

@@ -46,6 +46,7 @@ import { RoomHierarchy } from "matrix-js-sdk/src/room-hierarchy";
 import classNames from "classnames";
 import { sortBy, uniqBy } from "lodash";
 import { logger } from "matrix-js-sdk/src/logger";
+import { SpaceChildEventContent } from "matrix-js-sdk/src/types";
 
 import defaultDispatcher from "../../dispatcher/dispatcher";
 import { _t } from "../../languageHandler";
@@ -726,7 +727,7 @@ const ManageButtons: React.FC<IManageButtonsProps> = ({ hierarchy, selected, set
                             const existingContent = hierarchy.getRelation(parentId, childId)?.content;
                             if (!existingContent || existingContent.suggested === suggested) continue;
 
-                            const content = {
+                            const content: SpaceChildEventContent = {
                                 ...existingContent,
                                 suggested: !selectionAllSuggested,
                             };

src/components/views/dialogs/devtools/RoomState.tsx

@@ -38,7 +38,7 @@ export const StateEventEditor: React.FC<IEditorProps> = ({ mxEvent, onBack }) =>
     );
 
     const onSend = async ([eventType, stateKey]: string[], content: IContent): Promise<void> => {
-        await cli.sendStateEvent(context.room.roomId, eventType, content, stateKey);
+        await cli.sendStateEvent(context.room.roomId, eventType as any, content, stateKey);
     };
 
     const defaultContent = mxEvent ? stringify(mxEvent.getContent()) : undefined;

src/components/views/room_settings/AliasSettings.tsx

@@ -15,8 +15,9 @@ limitations under the License.
 */
 
 import React, { ChangeEvent, ContextType, createRef, SyntheticEvent } from "react";
-import { IContent, MatrixEvent, EventType } from "matrix-js-sdk/src/matrix";
+import { MatrixEvent, EventType } from "matrix-js-sdk/src/matrix";
 import { logger } from "matrix-js-sdk/src/logger";
+import { RoomCanonicalAliasEventContent } from "matrix-js-sdk/src/types";
 
 import EditableItemList from "../elements/EditableItemList";
 import { _t } from "../../../languageHandler";
@@ -169,7 +170,7 @@ export default class AliasSettings extends React.Component<IProps, IState> {
             updatingCanonicalAlias: true,
         });
 
-        const eventContent: IContent = {
+        const eventContent: RoomCanonicalAliasEventContent = {
             alt_aliases: this.state.altAliases,
         };
 
@@ -197,7 +198,7 @@ export default class AliasSettings extends React.Component<IProps, IState> {
             updatingCanonicalAlias: true,
         });
 
-        const eventContent: IContent = {};
+        const eventContent: RoomCanonicalAliasEventContent = {};
 
         if (this.state.canonicalAlias) {
             eventContent["alias"] = this.state.canonicalAlias;

src/components/views/rooms/ThirdPartyMemberInfo.tsx

@@ -15,7 +15,7 @@ limitations under the License.
 */
 
 import React from "react";
-import { MatrixEvent, Room, RoomStateEvent, EventType } from "matrix-js-sdk/src/matrix";
+import { EventType, MatrixEvent, Room, RoomStateEvent } from "matrix-js-sdk/src/matrix";
 import { logger } from "matrix-js-sdk/src/logger";
 import { Button, Text } from "@vector-im/compound-web";
 
@@ -101,7 +101,7 @@ export default class ThirdPartyMemberInfo extends React.Component<IProps, IState
 
     public onKickClick = (): void => {
         MatrixClientPeg.safeGet()
-            .sendStateEvent(this.state.roomId, "m.room.third_party_invite", {}, this.state.stateKey)
+            .sendStateEvent(this.state.roomId, EventType.RoomThirdPartyInvite, {}, this.state.stateKey)
             .catch((err) => {
                 logger.error(err);
 

src/components/views/settings/tabs/room/RolesRoomSettingsTab.tsx

@@ -18,6 +18,7 @@ import React from "react";
 import { EventType, RoomMember, RoomState, RoomStateEvent, Room, IContent } from "matrix-js-sdk/src/matrix";
 import { logger } from "matrix-js-sdk/src/logger";
 import { throttle, get } from "lodash";
+import { RoomPowerLevelsEventContent } from "matrix-js-sdk/src/types";
 
 import { _t, _td, TranslationKey } from "../../../../../languageHandler";
 import AccessibleButton from "../../../elements/AccessibleButton";
@@ -178,7 +179,7 @@ export default class RolesRoomSettingsTab extends React.Component<IProps> {
         const client = this.context;
         const room = this.props.room;
         const plEvent = room.currentState.getStateEvents(EventType.RoomPowerLevels, "");
-        let plContent = plEvent?.getContent() ?? {};
+        let plContent = plEvent?.getContent<RoomPowerLevelsEventContent>() ?? {};
 
         // Clone the power levels just in case
         plContent = Object.assign({}, plContent);
@@ -192,7 +193,7 @@ export default class RolesRoomSettingsTab extends React.Component<IProps> {
         } else {
             const keyPath = powerLevelKey.split(".");
             let parentObj: IContent = {};
-            let currentObj = plContent;
+            let currentObj: IContent = plContent;
             for (const key of keyPath) {
                 if (!currentObj[key]) {
                     currentObj[key] = {};
@@ -222,7 +223,7 @@ export default class RolesRoomSettingsTab extends React.Component<IProps> {
         const client = this.context;
         const room = this.props.room;
         const plEvent = room.currentState.getStateEvents(EventType.RoomPowerLevels, "");
-        let plContent = plEvent?.getContent() ?? {};
+        let plContent = plEvent?.getContent<RoomPowerLevelsEventContent>() ?? {};
 
         // Clone the power levels just in case
         plContent = Object.assign({}, plContent);

src/mjolnir/BanList.ts

@@ -16,12 +16,14 @@ limitations under the License.
 
 // Inspiration largely taken from Mjolnir itself
 
+import { EventType } from "matrix-js-sdk/src/matrix";
+
 import { ListRule, RECOMMENDATION_BAN, recommendationToStable } from "./ListRule";
 import { MatrixClientPeg } from "../MatrixClientPeg";
 
-export const RULE_USER = "m.policy.rule.user";
+export const RULE_USER = EventType.PolicyRuleUser;
-export const RULE_ROOM = "m.policy.rule.room";
+export const RULE_ROOM = EventType.PolicyRuleRoom;
-export const RULE_SERVER = "m.policy.rule.server";
+export const RULE_SERVER = EventType.PolicyRuleServer;
 
 // m.room.* events are legacy from when MSC2313 changed to m.policy.* last minute.
 export const USER_RULE_TYPES = [RULE_USER, "m.room.rule.user", "org.matrix.mjolnir.rule.user"];
@@ -29,7 +31,9 @@ export const ROOM_RULE_TYPES = [RULE_ROOM, "m.room.rule.room", "org.matrix.mjoln
 export const SERVER_RULE_TYPES = [RULE_SERVER, "m.room.rule.server", "org.matrix.mjolnir.rule.server"];
 export const ALL_RULE_TYPES = [...USER_RULE_TYPES, ...ROOM_RULE_TYPES, ...SERVER_RULE_TYPES];
 
-export function ruleTypeToStable(rule: string): string | null {
+export function ruleTypeToStable(
+    rule: string,
+): EventType.PolicyRuleUser | EventType.PolicyRuleRoom | EventType.PolicyRuleServer | null {
     if (USER_RULE_TYPES.includes(rule)) {
         return RULE_USER;
     }
@@ -72,7 +76,7 @@ export class BanList {
             {
                 entity: entity,
                 reason: reason,
-                recommendation: recommendationToStable(RECOMMENDATION_BAN, true),
+                recommendation: recommendationToStable(RECOMMENDATION_BAN, true)!,
             },
             "rule:" + entity,
         );

src/mjolnir/ListRule.ts

@@ -14,14 +14,24 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
+// We are using experimental APIs here, so we need to disable the linter
+// eslint-disable-next-line no-restricted-imports
+import { PolicyRecommendation } from "matrix-js-sdk/src/models/invites-ignorer";
+
 import { MatrixGlob } from "../utils/MatrixGlob";
 
 // Inspiration largely taken from Mjolnir itself
 
-export const RECOMMENDATION_BAN = "m.ban";
+export const RECOMMENDATION_BAN = PolicyRecommendation.Ban;
-export const RECOMMENDATION_BAN_TYPES = [RECOMMENDATION_BAN, "org.matrix.mjolnir.ban"];
+export const RECOMMENDATION_BAN_TYPES: PolicyRecommendation[] = [
+    RECOMMENDATION_BAN,
+    "org.matrix.mjolnir.ban" as PolicyRecommendation,
+];
 
-export function recommendationToStable(recommendation: string, unstable = true): string | null {
+export function recommendationToStable(
+    recommendation: PolicyRecommendation,
+    unstable = true,
+): PolicyRecommendation | null {
     if (RECOMMENDATION_BAN_TYPES.includes(recommendation)) {
         return unstable ? RECOMMENDATION_BAN_TYPES[RECOMMENDATION_BAN_TYPES.length - 1] : RECOMMENDATION_BAN;
     }
@@ -35,7 +45,7 @@ export class ListRule {
     private readonly _reason: string;
     private readonly _kind: string;
 
-    public constructor(entity: string, action: string, reason: string, kind: string) {
+    public constructor(entity: string, action: PolicyRecommendation, reason: string, kind: string) {
         this._glob = new MatrixGlob(entity);
         this._entity = entity;
         this._action = recommendationToStable(action, false);

src/settings/handlers/RoomSettingsHandler.ts

@@ -15,7 +15,7 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-import { MatrixClient, MatrixEvent, RoomState, RoomStateEvent } from "matrix-js-sdk/src/matrix";
+import { MatrixClient, MatrixEvent, RoomState, RoomStateEvent, StateEvents } from "matrix-js-sdk/src/matrix";
 import { defer } from "matrix-js-sdk/src/utils";
 
 import MatrixClientBackedSettingsHandler from "./MatrixClientBackedSettingsHandler";
@@ -24,6 +24,9 @@ import { SettingLevel } from "../SettingLevel";
 import { WatchManager } from "../WatchManager";
 
 const DEFAULT_SETTINGS_EVENT_TYPE = "im.vector.web.settings";
+const PREVIEW_URLS_EVENT_TYPE = "org.matrix.room.preview_urls";
+
+type RoomSettingsEventType = typeof DEFAULT_SETTINGS_EVENT_TYPE | typeof PREVIEW_URLS_EVENT_TYPE;
 
 /**
  * Gets and sets settings at the "room" level.
@@ -88,7 +91,12 @@ export default class RoomSettingsHandler extends MatrixClientBackedSettingsHandl
     }
 
     // helper function to send state event then await it being echoed back
-    private async sendStateEvent(roomId: string, eventType: string, field: string, value: any): Promise<void> {
+    private async sendStateEvent<K extends RoomSettingsEventType, F extends keyof StateEvents[K]>(
+        roomId: string,
+        eventType: K,
+        field: F,
+        value: StateEvents[K][F],
+    ): Promise<void> {
         const content = this.getSettings(roomId, eventType) || {};
         content[field] = value;
 

src/stores/widgets/StopGapWidgetDriver.ts

@@ -43,6 +43,7 @@ import {
     Room,
     Direction,
     THREAD_RELATION_TYPE,
+    StateEvents,
 } from "matrix-js-sdk/src/matrix";
 import { logger } from "matrix-js-sdk/src/logger";
 import {
@@ -241,7 +242,19 @@ export class StopGapWidgetDriver extends WidgetDriver {
         return allAllowed;
     }
 
+    public async sendEvent<K extends keyof StateEvents>(
+        eventType: K,
+        content: StateEvents[K],
+        stateKey?: string,
+        targetRoomId?: string,
+    ): Promise<ISendEventDetails>;
     public async sendEvent(
+        eventType: Exclude<EventType, keyof StateEvents>,
+        content: IContent,
+        stateKey: null,
+        targetRoomId?: string,
+    ): Promise<ISendEventDetails>;
+    public async sendEvent<K extends keyof StateEvents>(
         eventType: string,
         content: IContent,
         stateKey?: string | null,
@@ -255,7 +268,7 @@ export class StopGapWidgetDriver extends WidgetDriver {
         let r: { event_id: string } | null;
         if (stateKey !== null) {
             // state event
-            r = await client.sendStateEvent(roomId, eventType, content, stateKey);
+            r = await client.sendStateEvent(roomId, eventType as K, content as StateEvents[K], stateKey);
         } else if (eventType === EventType.RoomRedaction) {
             // special case: extract the `redacts` property and call redact
             r = await client.redactEvent(roomId, content["redacts"]);

src/utils/RoomUpgrade.ts

@@ -131,7 +131,7 @@ export async function upgradeRoom(
                     EventType.SpaceChild,
                     {
                         ...(currentEv?.getContent() || {}), // copy existing attributes like suggested
-                        via: [cli.getDomain()],
+                        via: [cli.getDomain()!],
                     },
                     newRoomId,
                 );

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

@@ -24,6 +24,7 @@ import {
     RoomStateEvent,
     PendingEventOrdering,
     ISearchResults,
+    IContent,
 } from "matrix-js-sdk/src/matrix";
 import { CallType } from "matrix-js-sdk/src/webrtc/call";
 import { ClientWidgetApi, Widget } from "matrix-widget-api";
@@ -111,7 +112,7 @@ describe("LegacyRoomHeader", () => {
                 room: roomId,
                 user: alice.userId,
                 skey: stateKey,
-                content,
+                content: content as IContent,
             });
             room.addLiveEvents([event]);
             return { event_id: event.getId()! };

test/models/Call-test.ts

@@ -17,7 +17,15 @@ limitations under the License.
 import EventEmitter from "events";
 import { mocked } from "jest-mock";
 import { waitFor } from "@testing-library/react";
-import { RoomType, Room, RoomEvent, MatrixEvent, RoomStateEvent, PendingEventOrdering } from "matrix-js-sdk/src/matrix";
+import {
+    RoomType,
+    Room,
+    RoomEvent,
+    MatrixEvent,
+    RoomStateEvent,
+    PendingEventOrdering,
+    IContent,
+} from "matrix-js-sdk/src/matrix";
 import { Widget } from "matrix-widget-api";
 // eslint-disable-next-line no-restricted-imports
 import { MatrixRTCSessionManagerEvents } from "matrix-js-sdk/src/matrixrtc/MatrixRTCSessionManager";
@@ -116,7 +124,7 @@ const setUpClientRoomAndStores = (): {
             room: roomId,
             user: alice.userId,
             skey: stateKey,
-            content,
+            content: content as IContent,
         });
         room.addLiveEvents([event]);
         return { event_id: event.getId()! };