diff options
| -rw-r--r-- | lib/connection.cpp | 129 |
1 files changed, 75 insertions, 54 deletions
diff --git a/lib/connection.cpp b/lib/connection.cpp index 3eede846..ac69228b 100644 --- a/lib/connection.cpp +++ b/lib/connection.cpp @@ -73,8 +73,7 @@ class Connection::Private : data(move(connection)) { } Q_DISABLE_COPY(Private) - Private(Private&&) = delete; - Private operator=(Private&&) = delete; + DISABLE_MOVE(Private) Connection* q = nullptr; std::unique_ptr<ConnectionData> data; @@ -91,6 +90,10 @@ class Connection::Private QMap<QString, User*> userMap; DirectChatsMap directChats; DirectChatUsersMap directChatUsers; + // The below two variables track local changes between sync completions. + // See also: https://github.com/QMatrixClient/libqmatrixclient/wiki/Handling-direct-chat-events + DirectChatsMap dcLocalAdditions; + DirectChatsMap dcLocalRemovals; std::unordered_map<QString, EventPtr> accountData; QString userId; int syncLoopTimeout = -1; @@ -107,8 +110,6 @@ class Connection::Private void connectWithToken(const QString& user, const QString& accessToken, const QString& deviceId); - void broadcastDirectChatUpdates(const DirectChatsMap& additions, - const DirectChatsMap& removals); template <typename EventT> EventT* unpackAccountData() const @@ -373,6 +374,20 @@ void Connection::syncLoop(int timeout) syncLoopIteration(); // initial sync to start the loop } +QJsonObject toJson(const Connection::DirectChatsMap& directChats) +{ + QJsonObject json; + for (auto it = directChats.begin(); it != directChats.end();) + { + QJsonArray roomIds; + const auto* user = it.key(); + for (; it != directChats.end() && it.key() == user; ++it) + roomIds.append(*it); + json.insert(user->id(), roomIds); + } + return json; +} + void Connection::onSyncSuccess(SyncData &&data, bool fromCache) { d->data->setLastEvent(data.nextBatch()); for (auto&& roomData: data.takeRoomData()) @@ -409,33 +424,43 @@ void Connection::onSyncSuccess(SyncData &&data, bool fromCache) { } // After running this loop, the account data events not saved in // d->accountData (see the end of the loop body) are auto-cleaned away - for (auto& eventPtr: data.takeAccountData()) + for (auto& eventPtr : data.takeAccountData()) + { visit(*eventPtr, [this](const DirectChatEvent& dce) { + // See https://github.com/QMatrixClient/libqmatrixclient/wiki/Handling-direct-chat-events const auto& usersToDCs = dce.usersToDirectChats(); - DirectChatsMap removals = - erase_if(d->directChats, [&usersToDCs](auto it) { - return !usersToDCs.contains(it.key()->id(), - it.value()); - }); - erase_if(d->directChatUsers, [&usersToDCs](auto it) { - return !usersToDCs.contains(it.value()->id(), it.key()); + DirectChatsMap remoteRemovals = + erase_if(d->directChats, [&usersToDCs, this](auto it) { + return !(usersToDCs.contains(it.key()->id(), it.value()) + || d->dcLocalAdditions.contains(it.key(), + it.value())); + }); + erase_if(d->directChatUsers, [&remoteRemovals](auto it) { + return remoteRemovals.contains(it.value(), it.key()); + }); + // Remove from dcLocalRemovals what the server already has. + erase_if(d->dcLocalRemovals, [&remoteRemovals](auto it) { + return remoteRemovals.contains(it.key(), it.value()); }); if (MAIN().isDebugEnabled()) - for (auto it = removals.begin(); it != removals.end(); - ++it) - qCDebug(MAIN) << it.value() - << "is no more a direct chat with" - << it.key()->id(); - - DirectChatsMap additions; + for (auto it = remoteRemovals.begin(); + it != remoteRemovals.end(); ++it) { + qCDebug(MAIN) + << it.value() << "is no more a direct chat with" + << it.key()->id(); + } + + DirectChatsMap remoteAdditions; for (auto it = usersToDCs.begin(); it != usersToDCs.end(); ++it) { if (auto* u = user(it.key())) { - if (!d->directChats.contains(u, it.value())) { - Q_ASSERT(!d->directChatUsers.contains(it.value(), - u)); - additions.insert(u, it.value()); + if (!d->directChats.contains(u, it.value()) + && !d->dcLocalRemovals.contains(u, it.value())) + { + Q_ASSERT( + !d->directChatUsers.contains(it.value(), u)); + remoteAdditions.insert(u, it.value()); d->directChats.insert(u, it.value()); d->directChatUsers.insert(it.value(), u); qCDebug(MAIN) @@ -446,8 +471,12 @@ void Connection::onSyncSuccess(SyncData &&data, bool fromCache) { qCWarning(MAIN) << "Couldn't get a user object for" << it.key(); } - if (!additions.isEmpty() || !removals.isEmpty()) - emit directChatsListChanged(additions, removals); + // Remove from dcLocalAdditions what the server already has. + erase_if(d->dcLocalAdditions, [&remoteAdditions](auto it) { + return remoteAdditions.contains(it.key(), it.value()); + }); + if (!remoteAdditions.isEmpty() || !remoteRemovals.isEmpty()) + emit directChatsListChanged(remoteAdditions, remoteRemovals); }, // catch-all, passing eventPtr for a possible take-over [this, &eventPtr](const Event& accountEvent) { @@ -468,6 +497,16 @@ void Connection::onSyncSuccess(SyncData &&data, bool fromCache) { emit accountDataChanged(currentData->matrixType()); } }); + } + if (!d->dcLocalAdditions.isEmpty() || !d->dcLocalRemovals.isEmpty()) { + qDebug(MAIN) << "Sending updated direct chats to the server:" + << d->dcLocalRemovals.size() << "removal(s)," + << d->dcLocalAdditions.size() << "addition(s)"; + callApi<SetAccountDataJob>(d->userId, QStringLiteral("m.direct"), + toJson(d->directChats)); + d->dcLocalAdditions.clear(); + d->dcLocalRemovals.clear(); + } } void Connection::stopSync() @@ -662,8 +701,8 @@ void Connection::doInDirectChat(User* u, { Q_ASSERT(u); const auto& userId = u->id(); - // There can be more than one DC; find the first valid, and delete invalid - // (left/forgotten) ones along the way. + // There can be more than one DC; find the first valid (existing and + // not left), and delete inexistent (forgotten?) ones along the way. DirectChatsMap removals; for (auto it = d->directChats.find(u); it != d->directChats.end() && it.key() == u; ++it) @@ -700,6 +739,8 @@ void Connection::doInDirectChat(User* u, << roomId << "is not valid and will be discarded"; // Postpone actual deletion until we finish iterating d->directChats. removals.insert(it.key(), it.value()); + // Add to the list of updates to send to the server upon the next sync. + d->dcLocalRemovals.insert(it.key(), it.value()); } if (!removals.isEmpty()) { @@ -709,7 +750,7 @@ void Connection::doInDirectChat(User* u, d->directChatUsers.remove(it.value(), const_cast<User*>(it.key())); // FIXME } - d->broadcastDirectChatUpdates({}, removals); + emit directChatsListChanged({}, removals); } auto j = createDirectChat(userId); @@ -1010,28 +1051,6 @@ Connection::DirectChatsMap Connection::directChats() const return d->directChats; } -QJsonObject toJson(const Connection::DirectChatsMap& directChats) -{ - QJsonObject json; - for (auto it = directChats.begin(); it != directChats.end();) - { - QJsonArray roomIds; - const auto* user = it.key(); - for (; it != directChats.end() && it.key() == user; ++it) - roomIds.append(*it); - json.insert(user->id(), roomIds); - } - return json; -} - -void Connection::Private::broadcastDirectChatUpdates(const DirectChatsMap& additions, - const DirectChatsMap& removals) -{ - q->callApi<SetAccountDataJob>(userId, QStringLiteral("m.direct"), - toJson(directChats)); - emit q->directChatsListChanged(additions, removals); -} - void Connection::addToDirectChats(const Room* room, User* user) { Q_ASSERT(room != nullptr && user != nullptr); @@ -1040,8 +1059,8 @@ void Connection::addToDirectChats(const Room* room, User* user) Q_ASSERT(!d->directChatUsers.contains(room->id(), user)); d->directChats.insert(user, room->id()); d->directChatUsers.insert(room->id(), user); - DirectChatsMap additions { { user, room->id() } }; - d->broadcastDirectChatUpdates(additions, {}); + d->dcLocalAdditions.insert(user, room->id()); + emit directChatsListChanged({ { user, room->id() } }, {}); } void Connection::removeFromDirectChats(const QString& roomId, User* user) @@ -1054,15 +1073,17 @@ void Connection::removeFromDirectChats(const QString& roomId, User* user) DirectChatsMap removals; if (user != nullptr) { - removals.insert(user, roomId); d->directChats.remove(user, roomId); d->directChatUsers.remove(roomId, user); + removals.insert(user, roomId); + d->dcLocalRemovals.insert(user, roomId); } else { removals = erase_if(d->directChats, [&roomId] (auto it) { return it.value() == roomId; }); d->directChatUsers.remove(roomId); + d->dcLocalRemovals += removals; } - d->broadcastDirectChatUpdates({}, removals); + emit directChatsListChanged({}, removals); } bool Connection::isDirectChat(const QString& roomId) const |