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550 lines
22 KiB
TypeScript
550 lines
22 KiB
TypeScript
/*
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Copyright 2021 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import {sortBy, throttle} from "lodash";
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import {EventType, RoomType} from "matrix-js-sdk/src/@types/event";
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import {Room} from "matrix-js-sdk/src/models/room";
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import {MatrixEvent} from "matrix-js-sdk/src/models/event";
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import {AsyncStoreWithClient} from "./AsyncStoreWithClient";
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import defaultDispatcher from "../dispatcher/dispatcher";
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import {ActionPayload} from "../dispatcher/payloads";
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import RoomListStore from "./room-list/RoomListStore";
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import SettingsStore from "../settings/SettingsStore";
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import DMRoomMap from "../utils/DMRoomMap";
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import {FetchRoomFn} from "./notifications/ListNotificationState";
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import {SpaceNotificationState} from "./notifications/SpaceNotificationState";
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import {RoomNotificationStateStore} from "./notifications/RoomNotificationStateStore";
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import {DefaultTagID} from "./room-list/models";
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import {EnhancedMap, mapDiff} from "../utils/maps";
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import {setHasDiff} from "../utils/sets";
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import {objectDiff} from "../utils/objects";
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import {arrayHasDiff} from "../utils/arrays";
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import {ISpaceSummaryEvent, ISpaceSummaryRoom} from "../components/structures/SpaceRoomDirectory";
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import RoomViewStore from "./RoomViewStore";
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type SpaceKey = string | symbol;
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interface IState {}
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const ACTIVE_SPACE_LS_KEY = "mx_active_space";
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const LAST_VIEWED_ROOMS = "mx_last_viewed_rooms";
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// We can't use HOME_SPACE here because JSON.stringify() will ignore any Symbols
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const LAST_VIEWED_ROOMS_HOME = "home_space";
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export const HOME_SPACE = Symbol("home-space");
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export const SUGGESTED_ROOMS = Symbol("suggested-rooms");
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export const UPDATE_TOP_LEVEL_SPACES = Symbol("top-level-spaces");
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export const UPDATE_SELECTED_SPACE = Symbol("selected-space");
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// Space Room ID/HOME_SPACE will be emitted when a Space's children change
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const MAX_SUGGESTED_ROOMS = 20;
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const partitionSpacesAndRooms = (arr: Room[]): [Room[], Room[]] => { // [spaces, rooms]
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return arr.reduce((result, room: Room) => {
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result[room.isSpaceRoom() ? 0 : 1].push(room);
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return result;
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}, [[], []]);
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};
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const getOrder = (ev: MatrixEvent): string | null => {
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const content = ev.getContent();
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if (typeof content.order === "string" && Array.from(content.order).every((c: string) => {
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const charCode = c.charCodeAt(0);
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return charCode >= 0x20 && charCode <= 0x7F;
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})) {
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return content.order;
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}
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return null;
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}
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const getRoomFn: FetchRoomFn = (room: Room) => {
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return RoomNotificationStateStore.instance.getRoomState(room);
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};
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export class SpaceStoreClass extends AsyncStoreWithClient<IState> {
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constructor() {
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super(defaultDispatcher, {});
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}
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// The spaces representing the roots of the various tree-like hierarchies
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private rootSpaces: Room[] = [];
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// The list of rooms not present in any currently joined spaces
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private orphanedRooms = new Set<string>();
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// Map from room ID to set of spaces which list it as a child
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private parentMap = new EnhancedMap<string, Set<string>>();
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// Map from space key to SpaceNotificationState instance representing that space
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private notificationStateMap = new Map<SpaceKey, SpaceNotificationState>();
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// Map from space key to Set of room IDs that should be shown as part of that space's filter
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private spaceFilteredRooms = new Map<string | symbol, Set<string>>();
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// The space currently selected in the Space Panel - if null then `Home` is selected
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private _activeSpace?: Room = null;
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private _suggestedRooms: ISpaceSummaryRoom[] = [];
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public get spacePanelSpaces(): Room[] {
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return this.rootSpaces;
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}
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public get activeSpace(): Room | null {
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return this._activeSpace || null;
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}
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public get suggestedRooms(): ISpaceSummaryRoom[] {
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return this._suggestedRooms;
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}
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public async setActiveSpace(space: Room | null) {
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if (space === this.activeSpace) return;
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this._activeSpace = space;
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this.emit(UPDATE_SELECTED_SPACE, this.activeSpace);
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this.emit(SUGGESTED_ROOMS, this._suggestedRooms = []);
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// view last selected room from space
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const spaceId = space?.roomId || LAST_VIEWED_ROOMS_HOME;
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const lastViewedRooms = JSON.parse(window.localStorage.getItem(LAST_VIEWED_ROOMS));
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const roomId = lastViewedRooms[spaceId];
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if (roomId) {
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defaultDispatcher.dispatch({
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action: "view_room",
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room_id: roomId,
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});
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} else {
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if (space) {
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defaultDispatcher.dispatch({
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action: "view_room",
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room_id: space.roomId,
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});
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} else {
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// TODO: Switch to first room in the RoomList
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}
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}
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// persist space selected
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if (space) {
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window.localStorage.setItem(ACTIVE_SPACE_LS_KEY, space.roomId);
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} else {
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window.localStorage.removeItem(ACTIVE_SPACE_LS_KEY);
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}
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if (space) {
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const data = await this.fetchSuggestedRooms(space);
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if (this._activeSpace === space) {
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this._suggestedRooms = data.rooms.filter(roomInfo => {
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return roomInfo.room_type !== RoomType.Space && !this.matrixClient.getRoom(roomInfo.room_id);
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});
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this.emit(SUGGESTED_ROOMS, this._suggestedRooms);
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}
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}
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}
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public fetchSuggestedRooms = async (space: Room, limit = MAX_SUGGESTED_ROOMS) => {
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try {
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const data: {
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rooms: ISpaceSummaryRoom[];
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events: ISpaceSummaryEvent[];
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} = await this.matrixClient.getSpaceSummary(space.roomId, 0, true, false, limit);
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return data;
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} catch (e) {
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console.error(e);
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}
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return {
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rooms: [],
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events: [],
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};
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};
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public addRoomToSpace(space: Room, roomId: string, via: string[], suggested = false, autoJoin = false) {
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return this.matrixClient.sendStateEvent(space.roomId, EventType.SpaceChild, {
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via,
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suggested,
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auto_join: autoJoin,
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}, roomId);
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}
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private getChildren(spaceId: string): Room[] {
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const room = this.matrixClient?.getRoom(spaceId);
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const childEvents = room?.currentState.getStateEvents(EventType.SpaceChild).filter(ev => ev.getContent()?.via);
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return sortBy(childEvents, getOrder)
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.map(ev => this.matrixClient.getRoom(ev.getStateKey()))
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.filter(room => room?.getMyMembership() === "join") || [];
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}
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public getChildRooms(spaceId: string): Room[] {
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return this.getChildren(spaceId).filter(r => !r.isSpaceRoom());
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}
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public getChildSpaces(spaceId: string): Room[] {
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return this.getChildren(spaceId).filter(r => r.isSpaceRoom());
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}
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public getParents(roomId: string, canonicalOnly = false): Room[] {
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const room = this.matrixClient?.getRoom(roomId);
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return room?.currentState.getStateEvents(EventType.SpaceParent)
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.filter(ev => {
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const content = ev.getContent();
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if (!content?.via) return false;
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// TODO apply permissions check to verify that the parent mapping is valid
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if (canonicalOnly && !content?.canonical) return false;
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return true;
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})
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.map(ev => this.matrixClient.getRoom(ev.getStateKey()))
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.filter(Boolean) || [];
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}
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public getCanonicalParent(roomId: string): Room | null {
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const parents = this.getParents(roomId, true);
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return sortBy(parents, r => r.roomId)?.[0] || null;
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}
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public getSpaces = () => {
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return this.matrixClient.getRooms().filter(r => r.isSpaceRoom() && r.getMyMembership() === "join");
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};
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public getSpaceFilteredRoomIds = (space: Room | null): Set<string> => {
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return this.spaceFilteredRooms.get(space?.roomId || HOME_SPACE) || new Set();
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};
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private rebuild = throttle(() => {
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// get all most-upgraded rooms & spaces except spaces which have been left (historical)
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const visibleRooms = this.matrixClient.getVisibleRooms().filter(r => {
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return !r.isSpaceRoom() || r.getMyMembership() === "join";
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});
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const unseenChildren = new Set<Room>(visibleRooms);
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const backrefs = new EnhancedMap<string, Set<string>>();
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// Sort spaces by room ID to force the cycle breaking to be deterministic
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const spaces = sortBy(visibleRooms.filter(r => r.isSpaceRoom()), space => space.roomId);
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// TODO handle cleaning up links when a Space is removed
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spaces.forEach(space => {
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const children = this.getChildren(space.roomId);
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children.forEach(child => {
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unseenChildren.delete(child);
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backrefs.getOrCreate(child.roomId, new Set()).add(space.roomId);
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});
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});
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const [rootSpaces, orphanedRooms] = partitionSpacesAndRooms(Array.from(unseenChildren));
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// somewhat algorithm to handle full-cycles
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const detachedNodes = new Set<Room>(spaces);
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const markTreeChildren = (rootSpace: Room, unseen: Set<Room>) => {
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const stack = [rootSpace];
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while (stack.length) {
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const op = stack.pop();
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unseen.delete(op);
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this.getChildSpaces(op.roomId).forEach(space => {
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if (unseen.has(space)) {
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stack.push(space);
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}
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});
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}
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};
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rootSpaces.forEach(rootSpace => {
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markTreeChildren(rootSpace, detachedNodes);
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});
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// Handle spaces forming fully cyclical relationships.
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// In order, assume each detachedNode is a root unless it has already
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// been claimed as the child of prior detached node.
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// Work from a copy of the detachedNodes set as it will be mutated as part of this operation.
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Array.from(detachedNodes).forEach(detachedNode => {
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if (!detachedNodes.has(detachedNode)) return;
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// declare this detached node a new root, find its children, without ever looping back to it
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detachedNodes.delete(detachedNode);
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rootSpaces.push(detachedNode);
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markTreeChildren(detachedNode, detachedNodes);
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// TODO only consider a detached node a root space if it has no *parents other than the ones forming cycles
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});
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// TODO neither of these handle an A->B->C->A with an additional C->D
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// detachedNodes.forEach(space => {
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// rootSpaces.push(space);
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// });
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this.orphanedRooms = new Set(orphanedRooms);
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this.rootSpaces = rootSpaces;
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this.parentMap = backrefs;
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// if the currently selected space no longer exists, remove its selection
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if (this._activeSpace && detachedNodes.has(this._activeSpace)) {
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this.setActiveSpace(null);
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}
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this.onRoomsUpdate(); // TODO only do this if a change has happened
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this.emit(UPDATE_TOP_LEVEL_SPACES, this.spacePanelSpaces);
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}, 100, {trailing: true, leading: true});
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onSpaceUpdate = () => {
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this.rebuild();
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}
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private showInHomeSpace = (room: Room) => {
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return !this.parentMap.get(room.roomId)?.size // put all orphaned rooms in the Home Space
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|| DMRoomMap.shared().getUserIdForRoomId(room.roomId) // put all DMs in the Home Space
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|| RoomListStore.instance.getTagsForRoom(room).includes(DefaultTagID.Favourite) // show all favourites
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};
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// Update a given room due to its tag changing (e.g DM-ness or Fav-ness)
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// This can only change whether it shows up in the HOME_SPACE or not
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private onRoomUpdate = (room: Room) => {
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if (this.showInHomeSpace(room)) {
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this.spaceFilteredRooms.get(HOME_SPACE)?.add(room.roomId);
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this.emit(HOME_SPACE);
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} else if (!this.orphanedRooms.has(room.roomId)) {
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this.spaceFilteredRooms.get(HOME_SPACE)?.delete(room.roomId);
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this.emit(HOME_SPACE);
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}
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};
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private onRoomsUpdate = throttle(() => {
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// TODO resolve some updates as deltas
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const visibleRooms = this.matrixClient.getVisibleRooms();
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const oldFilteredRooms = this.spaceFilteredRooms;
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this.spaceFilteredRooms = new Map();
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// put all invites (rooms & spaces) in the Home Space
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const invites = this.matrixClient.getRooms().filter(r => r.getMyMembership() === "invite");
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this.spaceFilteredRooms.set(HOME_SPACE, new Set<string>(invites.map(room => room.roomId)));
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visibleRooms.forEach(room => {
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if (this.showInHomeSpace(room)) {
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this.spaceFilteredRooms.get(HOME_SPACE).add(room.roomId);
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}
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});
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this.rootSpaces.forEach(s => {
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// traverse each space tree in DFS to build up the supersets as you go up,
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// reusing results from like subtrees.
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const fn = (spaceId: string, parentPath: Set<string>): Set<string> => {
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if (parentPath.has(spaceId)) return; // prevent cycles
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// reuse existing results if multiple similar branches exist
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if (this.spaceFilteredRooms.has(spaceId)) {
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return this.spaceFilteredRooms.get(spaceId);
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}
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const [childSpaces, childRooms] = partitionSpacesAndRooms(this.getChildren(spaceId));
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const roomIds = new Set(childRooms.map(r => r.roomId));
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const space = this.matrixClient?.getRoom(spaceId);
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// Add relevant DMs
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space?.getJoinedMembers().forEach(member => {
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DMRoomMap.shared().getDMRoomsForUserId(member.userId).forEach(roomId => {
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roomIds.add(roomId);
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});
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});
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const newPath = new Set(parentPath).add(spaceId);
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childSpaces.forEach(childSpace => {
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fn(childSpace.roomId, newPath)?.forEach(roomId => {
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roomIds.add(roomId);
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});
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});
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this.spaceFilteredRooms.set(spaceId, roomIds);
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return roomIds;
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};
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fn(s.roomId, new Set());
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});
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const diff = mapDiff(oldFilteredRooms, this.spaceFilteredRooms);
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// filter out keys which changed by reference only by checking whether the sets differ
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const changed = diff.changed.filter(k => setHasDiff(oldFilteredRooms.get(k), this.spaceFilteredRooms.get(k)));
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[...diff.added, ...diff.removed, ...changed].forEach(k => {
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this.emit(k);
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});
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this.spaceFilteredRooms.forEach((roomIds, s) => {
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// Update NotificationStates
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const rooms = this.matrixClient.getRooms().filter(room => roomIds.has(room.roomId));
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this.getNotificationState(s)?.setRooms(rooms);
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});
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}, 100, {trailing: true, leading: true});
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private onRoom = (room: Room) => {
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if (room?.isSpaceRoom()) {
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this.onSpaceUpdate();
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this.emit(room.roomId);
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} else {
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// this.onRoomUpdate(room);
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this.onRoomsUpdate();
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}
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// if the user was looking at the room and then joined select that space
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if (room.getMyMembership() === "join" && room.roomId === RoomViewStore.getRoomId()) {
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this.setActiveSpace(room);
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}
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const numSuggestedRooms = this._suggestedRooms.length;
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this._suggestedRooms = this._suggestedRooms.filter(r => r.room_id !== room.roomId);
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if (numSuggestedRooms !== this._suggestedRooms.length) {
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this.emit(SUGGESTED_ROOMS, this._suggestedRooms);
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}
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};
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private onRoomState = (ev: MatrixEvent) => {
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const room = this.matrixClient.getRoom(ev.getRoomId());
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if (!room) return;
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if (ev.getType() === EventType.SpaceChild && room.isSpaceRoom()) {
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this.onSpaceUpdate();
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this.emit(room.roomId);
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} else if (ev.getType() === EventType.SpaceParent) {
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// TODO rebuild the space parent and not the room - check permissions?
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// TODO confirm this after implementing parenting behaviour
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if (room.isSpaceRoom()) {
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this.onSpaceUpdate();
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} else {
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this.onRoomUpdate(room);
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}
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this.emit(room.roomId);
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}
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};
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private onRoomAccountData = (ev: MatrixEvent, room: Room, lastEvent: MatrixEvent) => {
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if (ev.getType() === EventType.Tag && !room.isSpaceRoom()) {
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// If the room was in favourites and now isn't or the opposite then update its position in the trees
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const oldTags = lastEvent.getContent()?.tags;
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const newTags = ev.getContent()?.tags;
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if (!!oldTags[DefaultTagID.Favourite] !== !!newTags[DefaultTagID.Favourite]) {
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this.onRoomUpdate(room);
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}
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}
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}
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private onAccountData = (ev: MatrixEvent, lastEvent: MatrixEvent) => {
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if (ev.getType() === EventType.Direct) {
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const lastContent = lastEvent.getContent();
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const content = ev.getContent();
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const diff = objectDiff<Record<string, string[]>>(lastContent, content);
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// filter out keys which changed by reference only by checking whether the sets differ
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const changed = diff.changed.filter(k => arrayHasDiff(lastContent[k], content[k]));
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// DM tag changes, refresh relevant rooms
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new Set([...diff.added, ...diff.removed, ...changed]).forEach(roomId => {
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const room = this.matrixClient?.getRoom(roomId);
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if (room) {
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this.onRoomUpdate(room);
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}
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});
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}
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};
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protected async onNotReady() {
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if (!SettingsStore.getValue("feature_spaces")) return;
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if (this.matrixClient) {
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this.matrixClient.removeListener("Room", this.onRoom);
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this.matrixClient.removeListener("Room.myMembership", this.onRoom);
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this.matrixClient.removeListener("RoomState.events", this.onRoomState);
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this.matrixClient.removeListener("Room.accountData", this.onRoomAccountData);
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this.matrixClient.removeListener("accountData", this.onAccountData);
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}
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await this.reset({});
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}
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protected async onReady() {
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if (!SettingsStore.getValue("feature_spaces")) return;
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this.matrixClient.on("Room", this.onRoom);
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this.matrixClient.on("Room.myMembership", this.onRoom);
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this.matrixClient.on("RoomState.events", this.onRoomState);
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this.matrixClient.on("Room.accountData", this.onRoomAccountData);
|
|
this.matrixClient.on("accountData", this.onAccountData);
|
|
|
|
await this.onSpaceUpdate(); // trigger an initial update
|
|
|
|
// restore selected state from last session if any and still valid
|
|
const lastSpaceId = window.localStorage.getItem(ACTIVE_SPACE_LS_KEY);
|
|
if (lastSpaceId) {
|
|
const space = this.rootSpaces.find(s => s.roomId === lastSpaceId);
|
|
if (space) {
|
|
this.setActiveSpace(space);
|
|
}
|
|
}
|
|
}
|
|
|
|
protected async onAction(payload: ActionPayload) {
|
|
if (!SettingsStore.getValue("feature_spaces")) return;
|
|
switch (payload.action) {
|
|
case "view_room": {
|
|
// persist last viewed room from a space
|
|
const activeSpace = SpaceStore.instance.activeSpace;
|
|
const activeSpaceId = activeSpace?.roomId || LAST_VIEWED_ROOMS_HOME;
|
|
const lastViewedRooms = JSON.parse(window.localStorage.getItem(LAST_VIEWED_ROOMS)) || {};
|
|
|
|
lastViewedRooms[activeSpaceId] = payload.room_id;
|
|
window.localStorage.setItem(LAST_VIEWED_ROOMS, JSON.stringify(lastViewedRooms));
|
|
|
|
const room = this.matrixClient?.getRoom(payload.room_id);
|
|
|
|
if (room?.getMyMembership() === "join") {
|
|
if (room.isSpaceRoom()) {
|
|
this.setActiveSpace(room);
|
|
} else if (!this.spaceFilteredRooms.get(this._activeSpace?.roomId || HOME_SPACE).has(room.roomId)) {
|
|
// TODO maybe reverse these first 2 clauses once space panel active is fixed
|
|
let parent = this.rootSpaces.find(s => this.spaceFilteredRooms.get(s.roomId)?.has(room.roomId));
|
|
if (!parent) {
|
|
parent = this.getCanonicalParent(room.roomId);
|
|
}
|
|
if (!parent) {
|
|
const parents = Array.from(this.parentMap.get(room.roomId) || []);
|
|
parent = parents.find(p => this.matrixClient.getRoom(p));
|
|
}
|
|
if (parent) {
|
|
this.setActiveSpace(parent);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case "after_leave_room":
|
|
if (this._activeSpace && payload.room_id === this._activeSpace.roomId) {
|
|
this.setActiveSpace(null);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
public getNotificationState(key: SpaceKey): SpaceNotificationState {
|
|
if (this.notificationStateMap.has(key)) {
|
|
return this.notificationStateMap.get(key);
|
|
}
|
|
|
|
const state = new SpaceNotificationState(key, getRoomFn);
|
|
this.notificationStateMap.set(key, state);
|
|
return state;
|
|
}
|
|
}
|
|
|
|
export default class SpaceStore {
|
|
private static internalInstance = new SpaceStoreClass();
|
|
|
|
public static get instance(): SpaceStoreClass {
|
|
return SpaceStore.internalInstance;
|
|
}
|
|
}
|
|
|
|
window.mxSpaceStore = SpaceStore.instance;
|