Revert "Try putting room list handling behind a lock"
This commit is contained in:
Travis Ralston
GitHub
parent
cf384c2a54
commit
ec7c1ab9f0
2 changed files with 155 additions and 200 deletions
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@ -34,7 +34,6 @@ import { OrderingAlgorithm } from "./list-ordering/OrderingAlgorithm";
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import { getListAlgorithmInstance } from "./list-ordering";
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import SettingsStore from "../../../settings/SettingsStore";
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import { VisibilityProvider } from "../filters/VisibilityProvider";
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import { MultiLock } from "../../../utils/MultiLock";
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/**
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* Fired when the Algorithm has determined a list has been updated.
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@ -78,7 +77,6 @@ export class Algorithm extends EventEmitter {
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} = {};
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private allowedByFilter: Map<IFilterCondition, Room[]> = new Map<IFilterCondition, Room[]>();
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private allowedRoomsByFilters: Set<Room> = new Set<Room>();
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private handlerLock = new MultiLock();
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/**
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* Set to true to suspend emissions of algorithm updates.
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@ -681,204 +679,191 @@ export class Algorithm extends EventEmitter {
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public async handleRoomUpdate(room: Room, cause: RoomUpdateCause): Promise<boolean> {
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`Acquiring lock for ${room.roomId} with cause ${cause}`);
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console.log(`Handle room update for ${room.roomId} called with cause ${cause}`);
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}
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const release = await this.handlerLock.acquire(room.roomId);
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try {
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`Handle room update for ${room.roomId} called with cause ${cause}`);
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if (!this.algorithms) throw new Error("Not ready: no algorithms to determine tags from");
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// Note: check the isSticky against the room ID just in case the reference is wrong
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const isSticky = this._stickyRoom && this._stickyRoom.room && this._stickyRoom.room.roomId === room.roomId;
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if (cause === RoomUpdateCause.NewRoom) {
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const isForLastSticky = this._lastStickyRoom && this._lastStickyRoom.room === room;
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const roomTags = this.roomIdsToTags[room.roomId];
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const hasTags = roomTags && roomTags.length > 0;
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// Don't change the cause if the last sticky room is being re-added. If we fail to
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// pass the cause through as NewRoom, we'll fail to lie to the algorithm and thus
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// lose the room.
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if (hasTags && !isForLastSticky) {
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console.warn(`${room.roomId} is reportedly new but is already known - assuming TagChange instead`);
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cause = RoomUpdateCause.PossibleTagChange;
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}
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if (!this.algorithms) throw new Error("Not ready: no algorithms to determine tags from");
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// Note: check the isSticky against the room ID just in case the reference is wrong
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const isSticky = this._stickyRoom && this._stickyRoom.room && this._stickyRoom.room.roomId === room.roomId;
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if (cause === RoomUpdateCause.NewRoom) {
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const isForLastSticky = this._lastStickyRoom && this._lastStickyRoom.room === room;
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const roomTags = this.roomIdsToTags[room.roomId];
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const hasTags = roomTags && roomTags.length > 0;
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// Don't change the cause if the last sticky room is being re-added. If we fail to
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// pass the cause through as NewRoom, we'll fail to lie to the algorithm and thus
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// lose the room.
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if (hasTags && !isForLastSticky) {
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console.warn(`${room.roomId} is reportedly new but is already known - assuming TagChange instead`);
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cause = RoomUpdateCause.PossibleTagChange;
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}
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// Check to see if the room is known first
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let knownRoomRef = this.rooms.includes(room);
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if (hasTags && !knownRoomRef) {
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console.warn(`${room.roomId} might be a reference change - attempting to update reference`);
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this.rooms = this.rooms.map(r => r.roomId === room.roomId ? room : r);
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knownRoomRef = this.rooms.includes(room);
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if (!knownRoomRef) {
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console.warn(`${room.roomId} is still not referenced. It may be sticky.`);
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}
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}
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// If we have tags for a room and don't have the room referenced, something went horribly
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// wrong - the reference should have been updated above.
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if (hasTags && !knownRoomRef && !isSticky) {
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throw new Error(`${room.roomId} is missing from room array but is known`);
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}
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// Like above, update the reference to the sticky room if we need to
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if (hasTags && isSticky) {
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// Go directly in and set the sticky room's new reference, being careful not
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// to trigger a sticky room update ourselves.
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this._stickyRoom.room = room;
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}
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// If after all that we're still a NewRoom update, add the room if applicable.
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// We don't do this for the sticky room (because it causes duplication issues)
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// or if we know about the reference (as it should be replaced).
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if (cause === RoomUpdateCause.NewRoom && !isSticky && !knownRoomRef) {
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this.rooms.push(room);
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// Check to see if the room is known first
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let knownRoomRef = this.rooms.includes(room);
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if (hasTags && !knownRoomRef) {
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console.warn(`${room.roomId} might be a reference change - attempting to update reference`);
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this.rooms = this.rooms.map(r => r.roomId === room.roomId ? room : r);
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knownRoomRef = this.rooms.includes(room);
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if (!knownRoomRef) {
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console.warn(`${room.roomId} is still not referenced. It may be sticky.`);
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}
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}
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let didTagChange = false;
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if (cause === RoomUpdateCause.PossibleTagChange) {
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const oldTags = this.roomIdsToTags[room.roomId] || [];
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const newTags = this.getTagsForRoom(room);
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const diff = arrayDiff(oldTags, newTags);
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if (diff.removed.length > 0 || diff.added.length > 0) {
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for (const rmTag of diff.removed) {
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`Removing ${room.roomId} from ${rmTag}`);
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}
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const algorithm: OrderingAlgorithm = this.algorithms[rmTag];
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if (!algorithm) throw new Error(`No algorithm for ${rmTag}`);
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await algorithm.handleRoomUpdate(room, RoomUpdateCause.RoomRemoved);
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this._cachedRooms[rmTag] = algorithm.orderedRooms;
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this.recalculateFilteredRoomsForTag(rmTag); // update filter to re-sort the list
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this.recalculateStickyRoom(rmTag); // update sticky room to make sure it moves if needed
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}
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for (const addTag of diff.added) {
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`Adding ${room.roomId} to ${addTag}`);
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}
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const algorithm: OrderingAlgorithm = this.algorithms[addTag];
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if (!algorithm) throw new Error(`No algorithm for ${addTag}`);
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await algorithm.handleRoomUpdate(room, RoomUpdateCause.NewRoom);
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this._cachedRooms[addTag] = algorithm.orderedRooms;
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}
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// If we have tags for a room and don't have the room referenced, something went horribly
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// wrong - the reference should have been updated above.
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if (hasTags && !knownRoomRef && !isSticky) {
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throw new Error(`${room.roomId} is missing from room array but is known - trying to find duplicate`);
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}
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// Update the tag map so we don't regen it in a moment
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this.roomIdsToTags[room.roomId] = newTags;
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// Like above, update the reference to the sticky room if we need to
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if (hasTags && isSticky) {
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// Go directly in and set the sticky room's new reference, being careful not
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// to trigger a sticky room update ourselves.
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this._stickyRoom.room = room;
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}
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// If after all that we're still a NewRoom update, add the room if applicable.
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// We don't do this for the sticky room (because it causes duplication issues)
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// or if we know about the reference (as it should be replaced).
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if (cause === RoomUpdateCause.NewRoom && !isSticky && !knownRoomRef) {
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this.rooms.push(room);
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}
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}
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let didTagChange = false;
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if (cause === RoomUpdateCause.PossibleTagChange) {
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const oldTags = this.roomIdsToTags[room.roomId] || [];
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const newTags = this.getTagsForRoom(room);
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const diff = arrayDiff(oldTags, newTags);
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if (diff.removed.length > 0 || diff.added.length > 0) {
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for (const rmTag of diff.removed) {
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`Changing update cause for ${room.roomId} to Timeline to sort rooms`);
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console.log(`Removing ${room.roomId} from ${rmTag}`);
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}
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cause = RoomUpdateCause.Timeline;
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didTagChange = true;
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const algorithm: OrderingAlgorithm = this.algorithms[rmTag];
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if (!algorithm) throw new Error(`No algorithm for ${rmTag}`);
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await algorithm.handleRoomUpdate(room, RoomUpdateCause.RoomRemoved);
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this._cachedRooms[rmTag] = algorithm.orderedRooms;
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this.recalculateFilteredRoomsForTag(rmTag); // update filter to re-sort the list
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this.recalculateStickyRoom(rmTag); // update sticky room to make sure it moves if needed
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}
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for (const addTag of diff.added) {
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`Adding ${room.roomId} to ${addTag}`);
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}
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const algorithm: OrderingAlgorithm = this.algorithms[addTag];
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if (!algorithm) throw new Error(`No algorithm for ${addTag}`);
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await algorithm.handleRoomUpdate(room, RoomUpdateCause.NewRoom);
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this._cachedRooms[addTag] = algorithm.orderedRooms;
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}
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// Update the tag map so we don't regen it in a moment
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this.roomIdsToTags[room.roomId] = newTags;
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`Changing update cause for ${room.roomId} to Timeline to sort rooms`);
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}
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cause = RoomUpdateCause.Timeline;
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didTagChange = true;
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} else {
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`Received no-op update for ${room.roomId} - changing to Timeline update`);
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}
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cause = RoomUpdateCause.Timeline;
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}
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if (didTagChange && isSticky) {
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// Manually update the tag for the sticky room without triggering a sticky room
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// update. The update will be handled implicitly by the sticky room handling and
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// requires no changes on our part, if we're in the middle of a sticky room change.
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if (this._lastStickyRoom) {
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this._stickyRoom = {
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room,
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tag: this.roomIdsToTags[room.roomId][0],
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position: 0, // right at the top as it changed tags
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};
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} else {
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`Received no-op update for ${room.roomId} - changing to Timeline update`);
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}
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cause = RoomUpdateCause.Timeline;
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}
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if (didTagChange && isSticky) {
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// Manually update the tag for the sticky room without triggering a sticky room
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// update. The update will be handled implicitly by the sticky room handling and
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// requires no changes on our part, if we're in the middle of a sticky room change.
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if (this._lastStickyRoom) {
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this._stickyRoom = {
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room,
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tag: this.roomIdsToTags[room.roomId][0],
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position: 0, // right at the top as it changed tags
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};
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} else {
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// We have to clear the lock as the sticky room change will trigger updates.
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await this.setStickyRoom(room);
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}
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// We have to clear the lock as the sticky room change will trigger updates.
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await this.setStickyRoom(room);
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}
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}
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}
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// If the update is for a room change which might be the sticky room, prevent it. We
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// need to make sure that the causes (NewRoom and RoomRemoved) are still triggered though
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// as the sticky room relies on this.
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if (cause !== RoomUpdateCause.NewRoom && cause !== RoomUpdateCause.RoomRemoved) {
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if (this.stickyRoom === room) {
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.warn(
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`[RoomListDebug] Received ${cause} update for sticky room ${room.roomId} - ignoring`,
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);
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}
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return false;
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}
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}
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if (!this.roomIdsToTags[room.roomId]) {
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if (CAUSES_REQUIRING_ROOM.includes(cause)) {
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.warn(`Skipping tag update for ${room.roomId} because we don't know about the room`);
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}
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return false;
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}
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// If the update is for a room change which might be the sticky room, prevent it. We
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// need to make sure that the causes (NewRoom and RoomRemoved) are still triggered though
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// as the sticky room relies on this.
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if (cause !== RoomUpdateCause.NewRoom && cause !== RoomUpdateCause.RoomRemoved) {
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if (this.stickyRoom === room) {
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`[RoomListDebug] Updating tags for room ${room.roomId} (${room.name})`);
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console.warn(`[RoomListDebug] Received ${cause} update for sticky room ${room.roomId} - ignoring`);
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}
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return false;
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}
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}
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// Get the tags for the room and populate the cache
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const roomTags = this.getTagsForRoom(room).filter(t => !isNullOrUndefined(this.cachedRooms[t]));
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// "This should never happen" condition - we specify DefaultTagID.Untagged in getTagsForRoom(),
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// which means we should *always* have a tag to go off of.
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if (!roomTags.length) throw new Error(`Tags cannot be determined for ${room.roomId}`);
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this.roomIdsToTags[room.roomId] = roomTags;
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if (!this.roomIdsToTags[room.roomId]) {
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if (CAUSES_REQUIRING_ROOM.includes(cause)) {
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`[RoomListDebug] Updated tags for ${room.roomId}:`, roomTags);
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console.warn(`Skipping tag update for ${room.roomId} because we don't know about the room`);
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}
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}
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`[RoomListDebug] Reached algorithmic handling for ${room.roomId} and cause ${cause}`);
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}
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const tags = this.roomIdsToTags[room.roomId];
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if (!tags) {
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console.warn(`No tags known for "${room.name}" (${room.roomId})`);
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return false;
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}
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let changed = didTagChange;
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for (const tag of tags) {
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const algorithm: OrderingAlgorithm = this.algorithms[tag];
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if (!algorithm) throw new Error(`No algorithm for ${tag}`);
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await algorithm.handleRoomUpdate(room, cause);
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this._cachedRooms[tag] = algorithm.orderedRooms;
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// Flag that we've done something
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this.recalculateFilteredRoomsForTag(tag); // update filter to re-sort the list
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this.recalculateStickyRoom(tag); // update sticky room to make sure it appears if needed
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changed = true;
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`[RoomListDebug] Updating tags for room ${room.roomId} (${room.name})`);
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}
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// Get the tags for the room and populate the cache
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const roomTags = this.getTagsForRoom(room).filter(t => !isNullOrUndefined(this.cachedRooms[t]));
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// "This should never happen" condition - we specify DefaultTagID.Untagged in getTagsForRoom(),
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// which means we should *always* have a tag to go off of.
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if (!roomTags.length) throw new Error(`Tags cannot be determined for ${room.roomId}`);
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this.roomIdsToTags[room.roomId] = roomTags;
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(
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`[RoomListDebug] Finished handling ${room.roomId} with cause ${cause} (changed=${changed})`,
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);
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console.log(`[RoomListDebug] Updated tags for ${room.roomId}:`, roomTags);
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}
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return changed;
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} finally {
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release();
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}
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`[RoomListDebug] Reached algorithmic handling for ${room.roomId} and cause ${cause}`);
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}
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const tags = this.roomIdsToTags[room.roomId];
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if (!tags) {
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console.warn(`No tags known for "${room.name}" (${room.roomId})`);
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return false;
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}
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let changed = didTagChange;
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for (const tag of tags) {
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const algorithm: OrderingAlgorithm = this.algorithms[tag];
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if (!algorithm) throw new Error(`No algorithm for ${tag}`);
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await algorithm.handleRoomUpdate(room, cause);
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this._cachedRooms[tag] = algorithm.orderedRooms;
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// Flag that we've done something
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this.recalculateFilteredRoomsForTag(tag); // update filter to re-sort the list
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this.recalculateStickyRoom(tag); // update sticky room to make sure it appears if needed
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changed = true;
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}
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if (SettingsStore.getValue("advancedRoomListLogging")) {
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// TODO: Remove debug: https://github.com/vector-im/element-web/issues/14602
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console.log(`[RoomListDebug] Finished handling ${room.roomId} with cause ${cause} (changed=${changed})`);
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}
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return changed;
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}
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}
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