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Don't parent PollHandler to room

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PollHandlers are stored in a QCache, which takes over ownership of the object. At the same time, PollHandler currently relies on its parent being the room.
Somehow, this didn't explode entirely, but only leads to minor problems like crashes on shutdown.
This commit is contained in:
Tobias Fella
2025-06-14 12:38:49 +02:00
committed by Tobias Fella
parent 598a1c28ac
commit a8c200222f
2 changed files with 26 additions and 43 deletions
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68
src/timeline/pollhandler.cpp
View File

@@ -17,8 +17,9 @@
using namespace Quotient;
PollHandler::PollHandler(NeoChatRoom *room, const QString &pollStartId)
: QObject(room)
: QObject(nullptr)
, m_pollStartId(pollStartId)
, m_room(room)
{
Q_ASSERT(room != nullptr);
Q_ASSERT(!pollStartId.isEmpty());
@@ -32,10 +33,7 @@ PollHandler::PollHandler(NeoChatRoom *room, const QString &pollStartId)
void PollHandler::updatePoll(Quotient::RoomEventsRange events)
{
// This function will never be called if the PollHandler was not initialized with
// a NeoChatRoom as parent and a PollStartEvent so no need to null check.
const auto room = dynamic_cast<NeoChatRoom *>(parent());
auto pollStartEvent = eventCast<const PollStartEvent>(room->getEvent(m_pollStartId).first);
auto pollStartEvent = eventCast<const PollStartEvent>(m_room->getEvent(m_pollStartId).first);
if (pollStartEvent == nullptr) {
return;
}
@@ -46,15 +44,12 @@ void PollHandler::updatePoll(Quotient::RoomEventsRange events)
void PollHandler::checkLoadRelations()
{
// This function will never be called if the PollHandler was not initialized with
// a NeoChatRoom as parent and a PollStartEvent so no need to null check.
auto room = dynamic_cast<NeoChatRoom *>(parent());
const auto pollStartEvent = room->getEvent(m_pollStartId).first;
const auto pollStartEvent = m_room->getEvent(m_pollStartId).first;
if (pollStartEvent == nullptr) {
return;
}
auto job = room->connection()->callApi<GetRelatingEventsJob>(room->id(), pollStartEvent->id());
auto job = m_room->connection()->callApi<GetRelatingEventsJob>(m_room->id(), pollStartEvent->id());
connect(job, &BaseJob::success, this, [this, job]() {
for (const auto &event : job->chunk()) {
handleEvent(event.get());
@@ -64,10 +59,7 @@ void PollHandler::checkLoadRelations()
void PollHandler::handleEvent(Quotient::RoomEvent *event)
{
// This function will never be called if the PollHandler was not initialized with
// a NeoChatRoom as parent and a PollStartEvent so no need to null check.
const auto room = dynamic_cast<NeoChatRoom *>(parent());
auto pollStartEvent = eventCast<const PollStartEvent>(room->getEvent(m_pollStartId).first);
auto pollStartEvent = eventCast<const PollStartEvent>(m_room->getEvent(m_pollStartId).first);
if (pollStartEvent == nullptr) {
return;
}
@@ -78,7 +70,7 @@ void PollHandler::handleEvent(Quotient::RoomEvent *event)
return;
}
auto plEvent = room->currentState().get<RoomPowerLevelsEvent>();
auto plEvent = m_room->currentState().get<RoomPowerLevelsEvent>();
if (!plEvent) {
return;
}
@@ -115,10 +107,7 @@ void PollHandler::handleResponse(const Quotient::PollResponseEvent *event)
&& (!m_hasEnded || event->originTimestamp() < m_endedTimestamp)) {
m_selectionTimestamps[event->senderId()] = event->originTimestamp();
// This function will never be called if the PollHandler was not initialized with
// a NeoChatRoom as parent and a PollStartEvent so no need to null check.
auto room = dynamic_cast<NeoChatRoom *>(parent());
const auto pollStartEvent = eventCast<const PollStartEvent>(room->getEvent(m_pollStartId).first);
const auto pollStartEvent = eventCast<const PollStartEvent>(m_room->getEvent(m_pollStartId).first);
if (pollStartEvent == nullptr) {
return;
}
@@ -135,16 +124,15 @@ void PollHandler::handleResponse(const Quotient::PollResponseEvent *event)
NeoChatRoom *PollHandler::room() const
{
return dynamic_cast<NeoChatRoom *>(parent());
return m_room.get();
}
QString PollHandler::question() const
{
auto room = dynamic_cast<NeoChatRoom *>(parent());
if (room == nullptr) {
if (!m_room) {
return {};
}
auto pollStartEvent = eventCast<const PollStartEvent>(room->getEvent(m_pollStartId).first);
auto pollStartEvent = eventCast<const PollStartEvent>(m_room->getEvent(m_pollStartId).first);
if (pollStartEvent == nullptr) {
return {};
}
@@ -153,11 +141,10 @@ QString PollHandler::question() const
int PollHandler::numAnswers() const
{
auto room = dynamic_cast<NeoChatRoom *>(parent());
if (room == nullptr) {
if (m_room == nullptr) {
return {};
}
auto pollStartEvent = eventCast<const PollStartEvent>(room->getEvent(m_pollStartId).first);
auto pollStartEvent = eventCast<const PollStartEvent>(m_room->getEvent(m_pollStartId).first);
if (pollStartEvent == nullptr) {
return {};
}
@@ -166,11 +153,10 @@ int PollHandler::numAnswers() const
Quotient::EventContent::Answer PollHandler::answerAtRow(int row) const
{
auto room = dynamic_cast<NeoChatRoom *>(parent());
if (room == nullptr) {
if (m_room == nullptr) {
return {};
}
auto pollStartEvent = eventCast<const PollStartEvent>(room->getEvent(m_pollStartId).first);
auto pollStartEvent = eventCast<const PollStartEvent>(m_room->getEvent(m_pollStartId).first);
if (pollStartEvent == nullptr) {
return {};
}
@@ -195,11 +181,10 @@ bool PollHandler::checkMemberSelectedId(const QString &memberId, const QString &
PollKind::Kind PollHandler::kind() const
{
auto room = dynamic_cast<NeoChatRoom *>(parent());
if (room == nullptr) {
if (m_room == nullptr) {
return {};
}
auto pollStartEvent = eventCast<const PollStartEvent>(room->getEvent(m_pollStartId).first);
auto pollStartEvent = eventCast<const PollStartEvent>(m_room->getEvent(m_pollStartId).first);
if (pollStartEvent == nullptr) {
return {};
}
@@ -225,11 +210,10 @@ int PollHandler::totalCount() const
QStringList PollHandler::winningAnswerIds() const
{
auto room = dynamic_cast<NeoChatRoom *>(parent());
if (room == nullptr) {
if (m_room == nullptr) {
return {};
}
auto pollStartEvent = eventCast<const PollStartEvent>(room->getEvent(m_pollStartId).first);
auto pollStartEvent = eventCast<const PollStartEvent>(m_room->getEvent(m_pollStartId).first);
if (pollStartEvent == nullptr) {
return {};
}
@@ -256,17 +240,16 @@ void PollHandler::sendPollAnswer(const QString &eventId, const QString &answerId
{
Q_ASSERT(eventId.length() > 0);
Q_ASSERT(answerId.length() > 0);
auto room = dynamic_cast<NeoChatRoom *>(parent());
if (room == nullptr) {
if (m_room == nullptr) {
qWarning() << "PollHandler is empty, cannot send an answer.";
return;
}
auto pollStartEvent = eventCast<const PollStartEvent>(room->getEvent(m_pollStartId).first);
auto pollStartEvent = eventCast<const PollStartEvent>(m_room->getEvent(m_pollStartId).first);
if (pollStartEvent == nullptr) {
return;
}
QStringList ownAnswers = m_selections[room->localMember().id()];
QStringList ownAnswers = m_selections[m_room->localMember().id()];
if (ownAnswers.contains(answerId)) {
ownAnswers.erase(std::remove_if(ownAnswers.begin(), ownAnswers.end(), [answerId](const auto &it) {
return answerId == it;
@@ -278,7 +261,7 @@ void PollHandler::sendPollAnswer(const QString &eventId, const QString &answerId
ownAnswers.insert(0, answerId);
}
const auto &response = room->post<PollResponseEvent>(eventId, ownAnswers);
const auto &response = m_room->post<PollResponseEvent>(eventId, ownAnswers);
handleResponse(eventCast<const PollResponseEvent>(response.event()));
}
@@ -294,11 +277,10 @@ void PollHandler::endPoll() const
QString PollHandler::endText() const
{
auto room = dynamic_cast<NeoChatRoom *>(parent());
if (room == nullptr) {
if (m_room == nullptr) {
return {};
}
auto pollStartEvent = eventCast<const PollStartEvent>(room->getEvent(m_pollStartId).first);
auto pollStartEvent = eventCast<const PollStartEvent>(m_room->getEvent(m_pollStartId).first);
if (pollStartEvent == nullptr) {
return {};
}

1
src/timeline/pollhandler.h
View File

@@ -124,6 +124,7 @@ Q_SIGNALS:
private:
QString m_pollStartId;
QPointer<NeoChatRoom> m_room;
void updatePoll(Quotient::RoomEventsRange events);