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Merge branch 'master' into DanilaFe/backfill-changes-2

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This commit is contained in:
Bruno Windels 2021-09-23 10:54:21 +02:00
commit 60744a1705
17 changed files with 248 additions and 59 deletions
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2
package.json
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@ -1,6 +1,6 @@
{
"name": "hydrogen-web",
"version": "0.2.11",
"version": "0.2.12",
"description": "A javascript matrix client prototype, trying to minize RAM usage by offloading as much as possible to IndexedDB",
"main": "index.js",
"directories": {

100
prototypes/idb-continue-on-constrainterror.html Normal file
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@ -0,0 +1,100 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>
<body>
<script type="text/javascript">
class IDBError extends Error {
constructor(errorEvent) {
const request = errorEvent.target;
const {error} = request;
super(error.message);
this.name = error.name;
this.errorEvent = errorEvent;
}
preventAbort() {
this.errorEvent.preventDefault();
}
}
class AbortError extends Error {
get name() { return "AbortError"; }
}
function reqAsPromise(req) {
return new Promise(function (resolve, reject) {
req.onsuccess = function(e) {
resolve(e.target.result);
};
req.onerror = function(e) {
reject(new IDBError(e));
};
});
}
function txnAsPromise(txn) {
return new Promise((resolve, reject) => {
txn.addEventListener("complete", () => resolve());
txn.addEventListener("abort", event => {
reject(new AbortError());
});
});
}
function Storage(databaseName) {
this._databaseName = databaseName;
this._database = null;
}
Storage.prototype = {
open: function() {
const req = window.indexedDB.open(this._databaseName);
const self = this;
req.onupgradeneeded = function(ev) {
const db = ev.target.result;
const oldVersion = ev.oldVersion;
self._createStores(db, oldVersion);
};
return reqAsPromise(req).then(function() {
self._database = req.result;
});
},
readWriteTxn: function(storeName) {
return this._database.transaction([storeName], "readwrite");
},
readTxn: function(storeName) {
return this._database.transaction([storeName], "readonly");
},
_createStores: function(db) {
db.createObjectStore("foos", {keyPath: "id"});
}
};
async function main() {
const storage = new Storage("idb-continue-on-constrainterror");
await storage.open();
const txn1 = storage.readWriteTxn("foos");
const store = txn1.objectStore("foos");
await reqAsPromise(store.clear());
console.log("first foo read back", await reqAsPromise(store.get(5)));
await reqAsPromise(store.add({id: 5, name: "Mr Foo"}));
try {
await reqAsPromise(store.add({id: 5, name: "bar"}));
} catch (err) {
console.log("we did get an error", err.name);
err.preventAbort();
}
await txnAsPromise(txn1);
const txn2 = storage.readTxn("foos");
const store2 = txn2.objectStore("foos");
console.log("got name from second txn", await reqAsPromise(store2.get(5)));
}
main().catch(err => console.error(err));
</script>
</body>
</html>

6
src/domain/session/room/timeline/ReactionsViewModel.js
View File

@ -247,8 +247,8 @@ export function tests() {
storage.storeNames.timelineFragments
]);
txn.timelineFragments.add({id: 1, roomId});
txn.timelineEvents.insert({fragmentId: 1, eventIndex: 2, event: messageEvent, roomId});
txn.timelineEvents.insert({fragmentId: 1, eventIndex: 3, event: myReactionEvent, roomId});
txn.timelineEvents.tryInsert({fragmentId: 1, eventIndex: 2, event: messageEvent, roomId}, new NullLogItem());
txn.timelineEvents.tryInsert({fragmentId: 1, eventIndex: 3, event: myReactionEvent, roomId}, new NullLogItem());
await relationWriter.writeRelation(myReactionEntry, txn, new NullLogItem());
await txn.complete();
// 2. setup queue & timeline
@ -309,7 +309,7 @@ export function tests() {
storage.storeNames.timelineFragments
]);
txn.timelineFragments.add({id: 1, roomId});
txn.timelineEvents.insert({fragmentId: 1, eventIndex: 2, event: messageEvent, roomId});
txn.timelineEvents.tryInsert({fragmentId: 1, eventIndex: 2, event: messageEvent, roomId}, new NullLogItem());
await txn.complete();
// 2. setup queue & timeline
const queue = new SendQueue({roomId, storage, hsApi: new MockHomeServer().api});

2
src/logging/IDBLogger.js
View File

@ -21,7 +21,7 @@ import {
reqAsPromise,
iterateCursor,
fetchResults,
} from "../matrix/storage/idb/utils.js";
} from "../matrix/storage/idb/utils";
import {BaseLogger} from "./BaseLogger.js";
export class IDBLogger extends BaseLogger {

6
src/logging/NullLogger.js
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@ -20,7 +20,7 @@ function noop () {}
export class NullLogger {
constructor() {
this.item = new NullLogItem();
this.item = new NullLogItem(this);
}
log() {}
@ -51,6 +51,10 @@ export class NullLogger {
}
export class NullLogItem {
constructor(logger) {
this.logger = logger;
}
wrap(_, callback) {
return callback(this);
}

8
src/matrix/room/timeline/Timeline.js
View File

@ -447,10 +447,10 @@ export function tests() {
// 1. put event and reaction into storage
const storage = await createMockStorage();
const txn = await storage.readWriteTxn([storage.storeNames.timelineEvents, storage.storeNames.timelineRelations]);
txn.timelineEvents.insert({
txn.timelineEvents.tryInsert({
event: withContent(createAnnotation(messageId, "👋"), createEvent("m.reaction", reactionId, bob)),
fragmentId: 1, eventIndex: 1, roomId
});
}, new NullLogItem());
txn.timelineRelations.add(roomId, messageId, ANNOTATION_RELATION_TYPE, reactionId);
await txn.complete();
// 2. setup the timeline
@ -543,10 +543,10 @@ export function tests() {
// 1. put reaction in storage
const storage = await createMockStorage();
const txn = await storage.readWriteTxn([storage.storeNames.timelineEvents, storage.storeNames.timelineRelations]);
txn.timelineEvents.insert({
txn.timelineEvents.tryInsert({
event: withContent(createAnnotation(messageId, "👋"), createEvent("m.reaction", reactionId, bob)),
fragmentId: 1, eventIndex: 3, roomId
});
}, new NullLogItem());
await txn.complete();
// 2. setup timeline
const pendingEvents = new ObservableArray();

25
src/matrix/room/timeline/persistence/GapWriter.js
View File

@ -105,9 +105,10 @@ export class GapWriter {
if (updatedRelationTargetEntries) {
updatedEntries.push(...updatedRelationTargetEntries);
}
txn.timelineEvents.insert(eventStorageEntry);
const eventEntry = new EventEntry(eventStorageEntry, this._fragmentIdComparer);
directionalAppend(entries, eventEntry, direction);
if (await txn.timelineEvents.tryInsert(eventStorageEntry, log)) {
const eventEntry = new EventEntry(eventStorageEntry, this._fragmentIdComparer);
directionalAppend(entries, eventEntry, direction);
}
}
return {entries, updatedEntries};
}
@ -293,9 +294,9 @@ export function tests() {
};
}
async function backfillAndWrite(mocks, fragmentEntry) {
async function backfillAndWrite(mocks, fragmentEntry, limit) {
const {txn, timelineMock, gapWriter} = mocks;
const messageResponse = timelineMock.messages(fragmentEntry.token, undefined, fragmentEntry.direction.asApiString());
const messageResponse = timelineMock.messages(fragmentEntry.token, undefined, fragmentEntry.direction.asApiString(), limit);
await gapWriter.writeFragmentFill(fragmentEntry, messageResponse, txn, logger);
}
@ -333,7 +334,7 @@ export function tests() {
const { timelineMock } = mocks;
timelineMock.append(30);
const {fragmentEntry} = await syncAndWrite(mocks);
await backfillAndWrite(mocks, fragmentEntry);
await backfillAndWrite(mocks, fragmentEntry, 10);
const events = await allFragmentEvents(mocks, fragmentEntry.fragmentId);
assert.deepEqual(events.map(e => e.event_id), eventIds(10, 30));
await mocks.txn.complete();
@ -346,8 +347,8 @@ export function tests() {
timelineMock.append(15);
const {fragmentEntry: secondFragmentEntry} = await syncAndWrite(mocks, { previous: syncResponse, limit: 10 });
// Only the second backfill (in which all events overlap) fills the gap.
await backfillAndWrite(mocks, secondFragmentEntry);
await backfillAndWrite(mocks, await updatedFragmentEntry(mocks, secondFragmentEntry));
await backfillAndWrite(mocks, secondFragmentEntry, 10);
await backfillAndWrite(mocks, await updatedFragmentEntry(mocks, secondFragmentEntry), 10);
const firstFragment = await fetchFragment(mocks, firstFragmentEntry.fragmentId);
const secondFragment = await fetchFragment(mocks, secondFragmentEntry.fragmentId);
@ -365,7 +366,7 @@ export function tests() {
const {syncResponse, fragmentEntry: firstFragmentEntry} = await syncAndWrite(mocks, { limit: 10 });
timelineMock.append(20);
const {fragmentEntry: secondFragmentEntry} = await syncAndWrite(mocks, { previous: syncResponse, limit: 10 });
await backfillAndWrite(mocks, secondFragmentEntry);
await backfillAndWrite(mocks, secondFragmentEntry, 10);
const firstFragment = await fetchFragment(mocks, firstFragmentEntry.fragmentId);
const secondFragment = await fetchFragment(mocks, secondFragmentEntry.fragmentId);
@ -384,7 +385,7 @@ export function tests() {
// Mess with the saved token to receive old events in backfill
fragmentEntry.token = syncResponse.next_batch;
txn.timelineFragments.update(fragmentEntry.fragment);
await backfillAndWrite(mocks, fragmentEntry);
await backfillAndWrite(mocks, fragmentEntry, 10);
const fragment = await fetchFragment(mocks, fragmentEntry.fragmentId);
assert.notEqual(fragment.nextId, fragment.id);
@ -400,8 +401,8 @@ export function tests() {
const {fragmentEntry: secondFragmentEntry} = await syncAndWrite(mocks, { previous: syncResponse, limit: 10 });
timelineMock.insertAfter(eventId(9), 5);
// Only the second backfill (in which all events overlap) fills the gap.
await backfillAndWrite(mocks, secondFragmentEntry);
await backfillAndWrite(mocks, await updatedFragmentEntry(mocks, secondFragmentEntry));
await backfillAndWrite(mocks, secondFragmentEntry, 10);
await backfillAndWrite(mocks, await updatedFragmentEntry(mocks, secondFragmentEntry), 10);
const firstEvents = await allFragmentEvents(mocks, firstFragmentEntry.fragmentId);
assert.deepEqual(firstEvents.map(e => e.event_id), eventIds(0, 10));

12
src/matrix/room/timeline/persistence/RelationWriter.js
View File

@ -275,7 +275,7 @@ export function tests() {
const storage = await createMockStorage();
const txn = await storage.readWriteTxn([storage.storeNames.timelineEvents, storage.storeNames.timelineRelations]);
txn.timelineEvents.insert({fragmentId: 1, eventIndex: 2, event, roomId});
txn.timelineEvents.tryInsert({fragmentId: 1, eventIndex: 2, event, roomId}, new NullLogItem());
const updatedEntries = await relationWriter.writeRelation(redactionEntry, txn, new NullLogItem());
await txn.complete();
@ -300,7 +300,7 @@ export function tests() {
const storage = await createMockStorage();
const txn = await storage.readWriteTxn([storage.storeNames.timelineEvents, storage.storeNames.timelineRelations]);
txn.timelineEvents.insert({fragmentId: 1, eventIndex: 2, event, roomId});
txn.timelineEvents.tryInsert({fragmentId: 1, eventIndex: 2, event, roomId}, new NullLogItem());
const updatedEntries = await relationWriter.writeRelation(reactionEntry, txn, new NullLogItem());
await txn.complete();
@ -329,7 +329,7 @@ export function tests() {
const storage = await createMockStorage();
const txn = await storage.readWriteTxn([storage.storeNames.timelineEvents, storage.storeNames.timelineRelations]);
txn.timelineEvents.insert({fragmentId: 1, eventIndex: 2, event, roomId});
txn.timelineEvents.tryInsert({fragmentId: 1, eventIndex: 2, event, roomId}, new NullLogItem());
await relationWriter.writeRelation(reaction1Entry, txn, new NullLogItem());
const updatedEntries = await relationWriter.writeRelation(reaction2Entry, txn, new NullLogItem());
await txn.complete();
@ -358,10 +358,10 @@ export function tests() {
const storage = await createMockStorage();
const txn = await storage.readWriteTxn([storage.storeNames.timelineEvents, storage.storeNames.timelineRelations]);
txn.timelineEvents.insert({fragmentId: 1, eventIndex: 2, event, roomId});
txn.timelineEvents.insert({fragmentId: 1, eventIndex: 3, event: myReaction, roomId});
txn.timelineEvents.tryInsert({fragmentId: 1, eventIndex: 2, event, roomId}, new NullLogItem());
txn.timelineEvents.tryInsert({fragmentId: 1, eventIndex: 3, event: myReaction, roomId}, new NullLogItem());
await relationWriter.writeRelation(myReactionEntry, txn, new NullLogItem());
txn.timelineEvents.insert({fragmentId: 1, eventIndex: 4, event: bobReaction, roomId});
txn.timelineEvents.tryInsert({fragmentId: 1, eventIndex: 4, event: bobReaction, roomId}, new NullLogItem());
await relationWriter.writeRelation(bobReactionEntry, txn, new NullLogItem());
const updatedEntries = await relationWriter.writeRelation(myReactionRedactionEntry, txn, new NullLogItem());
await txn.complete();

37
src/matrix/room/timeline/persistence/SyncWriter.js
View File

@ -162,7 +162,10 @@ export class SyncWriter {
storageEntry.displayName = member.displayName;
storageEntry.avatarUrl = member.avatarUrl;
}
txn.timelineEvents.insert(storageEntry, log);
const couldInsert = await txn.timelineEvents.tryInsert(storageEntry, log);
if (!couldInsert) {
continue;
}
const entry = new EventEntry(storageEntry, this._fragmentIdComparer);
entries.push(entry);
const updatedRelationTargetEntries = await this._relationWriter.writeRelation(entry, txn, log);
@ -252,3 +255,35 @@ export class SyncWriter {
return this._lastLiveKey;
}
}
import {createMockStorage} from "../../../../mocks/Storage.js";
import {createEvent, withTextBody} from "../../../../mocks/event.js";
import {Instance as nullLogger} from "../../../../logging/NullLogger.js";
export function tests() {
const roomId = "!abc:hs.tld";
return {
"calling timelineEvents.tryInsert with the same event id a second time fails": async assert => {
const storage = await createMockStorage();
const txn = await storage.readWriteTxn([storage.storeNames.timelineEvents]);
const event = withTextBody("hello!", createEvent("m.room.message", "$abc", "@alice:hs.tld"));
const entry1 = createEventEntry(EventKey.defaultLiveKey, roomId, event);
assert.equal(await txn.timelineEvents.tryInsert(entry1, nullLogger.item), true);
const entry2 = createEventEntry(EventKey.defaultLiveKey.nextKey(), roomId, event);
assert.equal(await txn.timelineEvents.tryInsert(entry2, nullLogger.item), false);
// fake-indexeddb still aborts the transaction when preventDefault is called by tryInsert, so don't await as it will abort
// await txn.complete();
},
"calling timelineEvents.tryInsert with the same event key a second time fails": async assert => {
const storage = await createMockStorage();
const txn = await storage.readWriteTxn([storage.storeNames.timelineEvents]);
const event1 = withTextBody("hello!", createEvent("m.room.message", "$abc", "@alice:hs.tld"));
const entry1 = createEventEntry(EventKey.defaultLiveKey, roomId, event1);
assert.equal(await txn.timelineEvents.tryInsert(entry1, nullLogger.item), true);
const event2 = withTextBody("hello!", createEvent("m.room.message", "$def", "@alice:hs.tld"));
const entry2 = createEventEntry(EventKey.defaultLiveKey, roomId, event2);
assert.equal(await txn.timelineEvents.tryInsert(entry2, nullLogger.item), false);
// fake-indexeddb still aborts the transaction when preventDefault is called by tryInsert, so don't await as it will abort
// await txn.complete();
},
}
}

60
src/matrix/storage/idb/Store.ts
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@ -15,9 +15,9 @@ limitations under the License.
*/
import {QueryTarget, IDBQuery} from "./QueryTarget";
import {IDBRequestAttemptError} from "./error";
import {IDBRequestError, IDBRequestAttemptError} from "./error";
import {reqAsPromise} from "./utils";
import {Transaction} from "./Transaction";
import {Transaction, IDBKey} from "./Transaction";
import {LogItem} from "../../../logging/LogItem.js";
const LOG_REQUESTS = false;
@ -126,6 +126,10 @@ class QueryTargetWrapper<T> {
throw new IDBRequestAttemptError("index", this._qt, err, [name]);
}
}
get indexNames(): string[] {
return Array.from(this._qtStore.indexNames);
}
}
export class Store<T> extends QueryTarget<T> {
@ -162,30 +166,62 @@ export class Store<T> extends QueryTarget<T> {
this._prepareErrorLog(request, log, "add", undefined, value);
}
async tryAdd(value: T, log: LogItem): Promise<boolean> {
try {
await reqAsPromise(this._idbStore.add(value));
return true;
} catch (err) {
if (err instanceof IDBRequestError) {
log.log({l: "could not write", id: this._getKeys(value), e: err}, log.level.Warn);
err.preventTransactionAbort();
return false;
} else {
throw err;
}
}
}
delete(keyOrKeyRange: IDBValidKey | IDBKeyRange, log?: LogItem): void {
// ok to not monitor result of request, see comment in `put`.
const request = this._idbStore.delete(keyOrKeyRange);
this._prepareErrorLog(request, log, "delete", keyOrKeyRange, undefined);
}
private _prepareErrorLog(request: IDBRequest, log: LogItem | undefined, operationName: string, key: IDBValidKey | IDBKeyRange | undefined, value: T | undefined) {
private _prepareErrorLog(request: IDBRequest, log: LogItem | undefined, operationName: string, key: IDBKey | undefined, value: T | undefined) {
if (log) {
log.ensureRefId();
}
reqAsPromise(request).catch(err => {
try {
if (!key && value) {
key = this._getKey(value);
}
} catch {
key = "getKey failed";
let keys : IDBKey[] | undefined = undefined;
if (value) {
keys = this._getKeys(value);
} else if (key) {
keys = [key];
}
this._transaction.addWriteError(err, log, operationName, key);
this._transaction.addWriteError(err, log, operationName, keys);
});
}
private _getKey(value: T): IDBValidKey {
private _getKeys(value: T): IDBValidKey[] {
const keys: IDBValidKey[] = [];
const {keyPath} = this._idbStore;
try {
keys.push(this._readKeyPath(value, keyPath));
} catch (err) {
console.warn("could not read keyPath", keyPath);
}
for (const indexName of this._idbStore.indexNames) {
try {
const index = this._idbStore.index(indexName);
keys.push(this._readKeyPath(value, index.keyPath));
} catch (err) {
console.warn("could not read index", indexName);
}
}
return keys;
}
private _readKeyPath(value: T, keyPath: string[] | string): IDBValidKey {
if (Array.isArray(keyPath)) {
let field: any = value;
for (const part of keyPath) {
@ -198,6 +234,6 @@ export class Store<T> extends QueryTarget<T> {
return field as IDBValidKey;
} else {
return value[keyPath] as IDBValidKey;
}
}
}
}

10
src/matrix/storage/idb/Transaction.ts
View File

@ -39,12 +39,14 @@ import {AccountDataStore} from "./stores/AccountDataStore";
import {LogItem} from "../../../logging/LogItem.js";
import {BaseLogger} from "../../../logging/BaseLogger.js";
export type IDBKey = IDBValidKey | IDBKeyRange;
class WriteErrorInfo {
constructor(
public readonly error: StorageError,
public readonly refItem: LogItem | undefined,
public readonly operationName: string,
public readonly key: IDBValidKey | IDBKeyRange | undefined,
public readonly keys: IDBKey[] | undefined,
) {}
}
@ -196,10 +198,10 @@ export class Transaction {
}
}
addWriteError(error: StorageError, refItem: LogItem | undefined, operationName: string, key: IDBValidKey | IDBKeyRange | undefined) {
addWriteError(error: StorageError, refItem: LogItem | undefined, operationName: string, keys: IDBKey[] | undefined) {
// don't log subsequent `AbortError`s
if (error.errcode !== "AbortError" || this._writeErrors.length === 0) {
this._writeErrors.push(new WriteErrorInfo(error, refItem, operationName, key));
this._writeErrors.push(new WriteErrorInfo(error, refItem, operationName, keys));
}
}
@ -210,7 +212,7 @@ export class Transaction {
errorGroupItem.set("allowedStoreNames", this._allowedStoreNames);
}
for (const info of this._writeErrors) {
errorGroupItem.wrap({l: info.operationName, id: info.key}, item => {
errorGroupItem.wrap({l: info.operationName, id: info.keys}, item => {
if (info.refItem) {
item.refDetached(info.refItem);
}

12
src/matrix/storage/idb/error.ts
View File

@ -57,10 +57,18 @@ export class IDBError extends StorageError {
}
export class IDBRequestError extends IDBError {
constructor(request: IDBRequest, message: string = "IDBRequest failed") {
private errorEvent: Event;
constructor(errorEvent: Event) {
const request = errorEvent.target as IDBRequest;
const source = request.source;
const cause = request.error;
super(message, source, cause);
super("IDBRequest failed", source, cause);
this.errorEvent = errorEvent;
}
preventTransactionAbort() {
this.errorEvent.preventDefault();
}
}

14
src/matrix/storage/idb/stores/TimelineEventStore.ts
View File

@ -253,15 +253,17 @@ export class TimelineEventStore {
return occuringEventIds;
}
/** Inserts a new entry into the store. The combination of roomId and eventKey should not exist yet, or an error is thrown.
* @param entry the entry to insert
* @return nothing. To wait for the operation to finish, await the transaction it's part of.
* @throws {StorageError} ...
/** Inserts a new entry into the store.
*
* If the event already exists in the store (either the eventKey or the event id
* are already known for the given roomId), this operation has no effect.
*
* Returns if the event was not yet known and the entry was written.
*/
insert(entry: TimelineEventEntry, log: LogItem): void {
tryInsert(entry: TimelineEventEntry, log: LogItem): Promise<boolean> {
(entry as TimelineEventStorageEntry).key = encodeKey(entry.roomId, entry.fragmentId, entry.eventIndex);
(entry as TimelineEventStorageEntry).eventIdKey = encodeEventIdKey(entry.roomId, entry.event.event_id);
this._timelineStore.add(entry as TimelineEventStorageEntry, log);
return this._timelineStore.tryAdd(entry as TimelineEventStorageEntry, log);
}
/** Updates the entry into the store with the given [roomId, eventKey] combination.

6
src/matrix/storage/idb/utils.ts
View File

@ -97,7 +97,7 @@ export function reqAsPromise<T>(req: IDBRequest<T>): Promise<T> {
needsSyncPromise && Promise._flush && Promise._flush();
});
req.addEventListener("error", event => {
const error = new IDBRequestError(event.target as IDBRequest<T>);
const error = new IDBRequestError(event);
reject(error);
// @ts-ignore
needsSyncPromise && Promise._flush && Promise._flush();
@ -143,8 +143,8 @@ type CursorIterator<T, I extends IDBCursor> = (value: I extends IDBCursorWithVal
export function iterateCursor<T, I extends IDBCursor = IDBCursorWithValue>(cursorRequest: IDBRequest<I | null>, processValue: CursorIterator<T, I>): Promise<boolean> {
// TODO: does cursor already have a value here??
return new Promise<boolean>((resolve, reject) => {
cursorRequest.onerror = () => {
reject(new IDBRequestError(cursorRequest));
cursorRequest.onerror = event => {
reject(new IDBRequestError(event));
// @ts-ignore
needsSyncPromise && Promise._flush && Promise._flush();
};

4
src/mocks/Storage.js
View File

@ -16,8 +16,8 @@ limitations under the License.
import {FDBFactory, FDBKeyRange} from "../../lib/fake-indexeddb/index.js";
import {StorageFactory} from "../matrix/storage/idb/StorageFactory";
import {NullLogItem} from "../logging/NullLogger.js";
import {Instance as nullLogger} from "../logging/NullLogger.js";
export function createMockStorage() {
return new StorageFactory(null, new FDBFactory(), FDBKeyRange).create(1, new NullLogItem());
return new StorageFactory(null, new FDBFactory(), FDBKeyRange).create(1, nullLogger.item);
}

1
src/mocks/TimelineMock.ts
View File

@ -7,6 +7,7 @@ export function eventId(i: number): string {
return `$event${i}`;
}
/** `from` is included, `to` is excluded */
export function eventIds(from: number, to: number): string[] {
return [...Array(to-from).keys()].map(i => eventId(i + from));
}

2
src/platform/web/ui/session/room/timeline/BaseMessageView.js
View File

@ -66,7 +66,7 @@ export class BaseMessageView extends TemplateView {
let reactionsView = null;
t.mapSideEffect(vm => vm.reactions, reactions => {
if (reactions && this._interactive && !reactionsView) {
reactionsView = new ReactionsView(vm.reactions);
reactionsView = new ReactionsView(reactions);
this.addSubView(reactionsView);
li.appendChild(mountView(reactionsView));
} else if (!reactions && reactionsView) {