Merge #17120: gui: Fix start timer from non QThread

a8f5026d6d gui: Fix start timer from non QThread (João Barbosa)

Pull request description:

  Fixes #16296.

ACKs for top commit:
  laanwj:
    code review ACK a8f5026d6d

Tree-SHA512: d7b05ac88e188de16cbbe80cb2f773b7976ee07ee876ac94a93f9351856c4f3a9d66a531d3f3748d2dccff8c8d77d9d8227433069ed5909c32be2efeaa32f655
This commit is contained in:
Wladimir J. van der Laan 2019-10-26 13:00:01 +02:00
commit 9bd109b78d
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3 changed files with 17 additions and 7 deletions

View file

@ -109,6 +109,12 @@ WalletModel* WalletController::getOrCreateWallet(std::unique_ptr<interfaces::Wal
wallet_model->setParent(this);
m_wallets.push_back(wallet_model);
// WalletModel::startPollBalance needs to be called in a thread managed by
// Qt because of startTimer. Considering the current thread can be a RPC
// thread, better delegate the calling to Qt with Qt::AutoConnection.
const bool called = QMetaObject::invokeMethod(wallet_model, "startPollBalance");
assert(called);
connect(wallet_model, &WalletModel::unload, [this, wallet_model] {
// Defer removeAndDeleteWallet when no modal widget is active.
// TODO: remove this workaround by removing usage of QDiallog::exec.

View file

@ -44,11 +44,6 @@ WalletModel::WalletModel(std::unique_ptr<interfaces::Wallet> wallet, interfaces:
transactionTableModel = new TransactionTableModel(platformStyle, this);
recentRequestsTableModel = new RecentRequestsTableModel(this);
// This timer will be fired repeatedly to update the balance
pollTimer = new QTimer(this);
connect(pollTimer, &QTimer::timeout, this, &WalletModel::pollBalanceChanged);
pollTimer->start(MODEL_UPDATE_DELAY);
subscribeToCoreSignals();
}
@ -57,6 +52,14 @@ WalletModel::~WalletModel()
unsubscribeFromCoreSignals();
}
void WalletModel::startPollBalance()
{
// This timer will be fired repeatedly to update the balance
QTimer* timer = new QTimer(this);
connect(timer, &QTimer::timeout, this, &WalletModel::pollBalanceChanged);
timer->start(MODEL_UPDATE_DELAY);
}
void WalletModel::updateStatus()
{
EncryptionStatus newEncryptionStatus = getEncryptionStatus();

View file

@ -235,8 +235,6 @@ private:
EncryptionStatus cachedEncryptionStatus;
int cachedNumBlocks;
QTimer *pollTimer;
void subscribeToCoreSignals();
void unsubscribeFromCoreSignals();
void checkBalanceChanged(const interfaces::WalletBalances& new_balances);
@ -272,6 +270,9 @@ Q_SIGNALS:
void canGetAddressesChanged();
public Q_SLOTS:
/* Starts a timer to periodically update the balance */
void startPollBalance();
/* Wallet status might have changed */
void updateStatus();
/* New transaction, or transaction changed status */