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

a8f5026d6d992fd8d72908c848c5028f0f9a8cd1 gui: Fix start timer from non QThread (João Barbosa)

Pull request description:

  Fixes #16296.

ACKs for top commit:
  laanwj:
    code review ACK a8f5026d6d992fd8d72908c848c5028f0f9a8cd1

Tree-SHA512: d7b05ac88e188de16cbbe80cb2f773b7976ee07ee876ac94a93f9351856c4f3a9d66a531d3f3748d2dccff8c8d77d9d8227433069ed5909c32be2efeaa32f655

1 files changed, 8 insertions, 5 deletions

diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
index 08ea1c2409..33801d3907 100644
--- a/src/qt/walletmodel.cpp
+++ b/src/qt/walletmodel.cpp
@@ -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();