refactor: Get rid of Wallet::IsWalletFlagSet method

Replace by privateKeysDisabled method to avoid need for GUI to reference
internal wallet flags.

Also remove adjacent WalletModel canGetAddresses wrapper that serves no purpose
and make Wallet::canGetAddresses non-const so it can be implemented by IPC
classes in #10102.

8 files changed, 24 insertions, 36 deletions

diff --git a/src/interfaces/wallet.cpp b/src/interfaces/wallet.cpp
index 01ade56b2a..c2d42d78d3 100644
--- a/src/interfaces/wallet.cpp
+++ b/src/interfaces/wallet.cpp
@@ -463,8 +463,8 @@ public:
     }
     unsigned int getConfirmTarget() override { return m_wallet->m_confirm_target; }
     bool hdEnabled() override { return m_wallet->IsHDEnabled(); }
-    bool canGetAddresses() const override { return m_wallet->CanGetAddresses(); }
-    bool IsWalletFlagSet(uint64_t flag) override { return m_wallet->IsWalletFlagSet(flag); }
+    bool canGetAddresses() override { return m_wallet->CanGetAddresses(); }
+    bool privateKeysDisabled() override { return m_wallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS); }
     OutputType getDefaultAddressType() override { return m_wallet->m_default_address_type; }
     OutputType getDefaultChangeType() override { return m_wallet->m_default_change_type; }
     CAmount getDefaultMaxTxFee() override { return m_wallet->m_default_max_tx_fee; }
diff --git a/src/interfaces/wallet.h b/src/interfaces/wallet.h
index 9476c9f77f..56829289b2 100644
--- a/src/interfaces/wallet.h
+++ b/src/interfaces/wallet.h
@@ -247,10 +247,10 @@ public:
     virtual bool hdEnabled() = 0;
 
     // Return whether the wallet is blank.
-    virtual bool canGetAddresses() const = 0;
+    virtual bool canGetAddresses() = 0;
 
-    // check if a certain wallet flag is set.
-    virtual bool IsWalletFlagSet(uint64_t flag) = 0;
+    // Return whether private keys enabled.
+    virtual bool privateKeysDisabled() = 0;
 
     // Get default address type.
     virtual OutputType getDefaultAddressType() = 0;
diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
index 5fab267610..2918676c22 100644
--- a/src/qt/bitcoingui.cpp
+++ b/src/qt/bitcoingui.cpp
@@ -1258,7 +1258,7 @@ void BitcoinGUI::updateWalletStatus()
     }
     WalletModel * const walletModel = walletView->getWalletModel();
     setEncryptionStatus(walletModel->getEncryptionStatus());
-    setHDStatus(walletModel->privateKeysDisabled(), walletModel->wallet().hdEnabled());
+    setHDStatus(walletModel->wallet().privateKeysDisabled(), walletModel->wallet().hdEnabled());
 }
 #endif // ENABLE_WALLET
 
diff --git a/src/qt/overviewpage.cpp b/src/qt/overviewpage.cpp
index 342c7cce31..c376921b72 100644
--- a/src/qt/overviewpage.cpp
+++ b/src/qt/overviewpage.cpp
@@ -161,7 +161,7 @@ void OverviewPage::setBalance(const interfaces::WalletBalances& balances)
 {
     int unit = walletModel->getOptionsModel()->getDisplayUnit();
     m_balances = balances;
-    if (walletModel->privateKeysDisabled()) {
+    if (walletModel->wallet().privateKeysDisabled()) {
         ui->labelBalance->setText(BitcoinUnits::formatWithUnit(unit, balances.watch_only_balance, false, BitcoinUnits::separatorAlways));
         ui->labelUnconfirmed->setText(BitcoinUnits::formatWithUnit(unit, balances.unconfirmed_watch_only_balance, false, BitcoinUnits::separatorAlways));
         ui->labelImmature->setText(BitcoinUnits::formatWithUnit(unit, balances.immature_watch_only_balance, false, BitcoinUnits::separatorAlways));
@@ -184,7 +184,7 @@ void OverviewPage::setBalance(const interfaces::WalletBalances& balances)
     // for symmetry reasons also show immature label when the watch-only one is shown
     ui->labelImmature->setVisible(showImmature || showWatchOnlyImmature);
     ui->labelImmatureText->setVisible(showImmature || showWatchOnlyImmature);
-    ui->labelWatchImmature->setVisible(!walletModel->privateKeysDisabled() && showWatchOnlyImmature); // show watch-only immature balance
+    ui->labelWatchImmature->setVisible(!walletModel->wallet().privateKeysDisabled() && showWatchOnlyImmature); // show watch-only immature balance
 }
 
 // show/hide watch-only labels
@@ -236,9 +236,9 @@ void OverviewPage::setWalletModel(WalletModel *model)
 
         connect(model->getOptionsModel(), &OptionsModel::displayUnitChanged, this, &OverviewPage::updateDisplayUnit);
 
-        updateWatchOnlyLabels(wallet.haveWatchOnly() && !model->privateKeysDisabled());
+        updateWatchOnlyLabels(wallet.haveWatchOnly() && !model->wallet().privateKeysDisabled());
         connect(model, &WalletModel::notifyWatchonlyChanged, [this](bool showWatchOnly) {
-            updateWatchOnlyLabels(showWatchOnly && !walletModel->privateKeysDisabled());
+            updateWatchOnlyLabels(showWatchOnly && !walletModel->wallet().privateKeysDisabled());
         });
     }
 
diff --git a/src/qt/receivecoinsdialog.cpp b/src/qt/receivecoinsdialog.cpp
index 16597e4758..180550c5ae 100644
--- a/src/qt/receivecoinsdialog.cpp
+++ b/src/qt/receivecoinsdialog.cpp
@@ -99,11 +99,11 @@ void ReceiveCoinsDialog::setModel(WalletModel *_model)
         }
 
         // Set the button to be enabled or disabled based on whether the wallet can give out new addresses.
-        ui->receiveButton->setEnabled(model->canGetAddresses());
+        ui->receiveButton->setEnabled(model->wallet().canGetAddresses());
 
         // Enable/disable the receive button if the wallet is now able/unable to give out new addresses.
         connect(model, &WalletModel::canGetAddressesChanged, [this] {
-            ui->receiveButton->setEnabled(model->canGetAddresses());
+            ui->receiveButton->setEnabled(model->wallet().canGetAddresses());
         });
     }
 }
diff --git a/src/qt/sendcoinsdialog.cpp b/src/qt/sendcoinsdialog.cpp
index 4ddee513a1..7dc3e996d4 100644
--- a/src/qt/sendcoinsdialog.cpp
+++ b/src/qt/sendcoinsdialog.cpp
@@ -187,7 +187,7 @@ void SendCoinsDialog::setModel(WalletModel *_model)
         // set default rbf checkbox state
         ui->optInRBF->setCheckState(Qt::Checked);
 
-        if (model->privateKeysDisabled()) {
+        if (model->wallet().privateKeysDisabled()) {
             ui->sendButton->setText(tr("Cr&eate Unsigned"));
             ui->sendButton->setToolTip(tr("Creates a Partially Signed Bitcoin Transaction (PSBT) for use with e.g. an offline %1 wallet, or a PSBT-compatible hardware wallet.").arg(PACKAGE_NAME));
         }
@@ -312,14 +312,14 @@ void SendCoinsDialog::on_sendButton_clicked()
     }
 
     QString questionString;
-    if (model->privateKeysDisabled()) {
+    if (model->wallet().privateKeysDisabled()) {
         questionString.append(tr("Do you want to draft this transaction?"));
     } else {
         questionString.append(tr("Are you sure you want to send?"));
     }
 
     questionString.append("<br /><span style='font-size:10pt;'>");
-    if (model->privateKeysDisabled()) {
+    if (model->wallet().privateKeysDisabled()) {
         questionString.append(tr("Please, review your transaction proposal. This will produce a Partially Signed Bitcoin Transaction (PSBT) which you can copy and then sign with e.g. an offline %1 wallet, or a PSBT-compatible hardware wallet.").arg(PACKAGE_NAME));
     } else {
         questionString.append(tr("Please, review your transaction."));
@@ -374,8 +374,8 @@ void SendCoinsDialog::on_sendButton_clicked()
     } else {
         questionString = questionString.arg("<br /><br />" + formatted.at(0));
     }
-    const QString confirmation = model->privateKeysDisabled() ? tr("Confirm transaction proposal") : tr("Confirm send coins");
-    const QString confirmButtonText = model->privateKeysDisabled() ? tr("Copy PSBT to clipboard") : tr("Send");
+    const QString confirmation = model->wallet().privateKeysDisabled() ? tr("Confirm transaction proposal") : tr("Confirm send coins");
+    const QString confirmButtonText = model->wallet().privateKeysDisabled() ? tr("Copy PSBT to clipboard") : tr("Send");
     SendConfirmationDialog confirmationDialog(confirmation, questionString, informative_text, detailed_text, SEND_CONFIRM_DELAY, confirmButtonText, this);
     confirmationDialog.exec();
     QMessageBox::StandardButton retval = static_cast<QMessageBox::StandardButton>(confirmationDialog.result());
@@ -387,7 +387,7 @@ void SendCoinsDialog::on_sendButton_clicked()
     }
 
     bool send_failure = false;
-    if (model->privateKeysDisabled()) {
+    if (model->wallet().privateKeysDisabled()) {
         CMutableTransaction mtx = CMutableTransaction{*(currentTransaction.getWtx())};
         PartiallySignedTransaction psbtx(mtx);
         bool complete = false;
@@ -562,7 +562,7 @@ void SendCoinsDialog::setBalance(const interfaces::WalletBalances& balances)
     if(model && model->getOptionsModel())
     {
         CAmount balance = balances.balance;
-        if (model->privateKeysDisabled()) {
+        if (model->wallet().privateKeysDisabled()) {
             balance = balances.watch_only_balance;
             ui->labelBalanceName->setText(tr("Watch-only balance:"));
         }
@@ -652,7 +652,7 @@ void SendCoinsDialog::useAvailableBalance(SendCoinsEntry* entry)
     }
 
     // Include watch-only for wallets without private key
-    coin_control.fAllowWatchOnly = model->privateKeysDisabled();
+    coin_control.fAllowWatchOnly = model->wallet().privateKeysDisabled();
 
     // Calculate available amount to send.
     CAmount amount = model->wallet().getAvailableBalance(coin_control);
@@ -707,7 +707,7 @@ void SendCoinsDialog::updateCoinControlState(CCoinControl& ctrl)
     ctrl.m_confirm_target = getConfTargetForIndex(ui->confTargetSelector->currentIndex());
     ctrl.m_signal_bip125_rbf = ui->optInRBF->isChecked();
     // Include watch-only for wallets without private key
-    ctrl.fAllowWatchOnly = model->privateKeysDisabled();
+    ctrl.fAllowWatchOnly = model->wallet().privateKeysDisabled();
 }
 
 void SendCoinsDialog::updateSmartFeeLabel()
diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
index 8a84a8c168..642dce4ba9 100644
--- a/src/qt/walletmodel.cpp
+++ b/src/qt/walletmodel.cpp
@@ -23,7 +23,7 @@
 #include <ui_interface.h>
 #include <util/system.h> // for GetBoolArg
 #include <wallet/coincontrol.h>
-#include <wallet/wallet.h>
+#include <wallet/wallet.h> // for CRecipient
 
 #include <stdint.h>
 
@@ -184,7 +184,7 @@ WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransact
         std::string strFailReason;
 
         auto& newTx = transaction.getWtx();
-        newTx = m_wallet->createTransaction(vecSend, coinControl, !privateKeysDisabled() /* sign */, nChangePosRet, nFeeRequired, strFailReason);
+        newTx = m_wallet->createTransaction(vecSend, coinControl, !wallet().privateKeysDisabled() /* sign */, nChangePosRet, nFeeRequired, strFailReason);
         transaction.setTransactionFee(nFeeRequired);
         if (fSubtractFeeFromAmount && newTx)
             transaction.reassignAmounts(nChangePosRet);
@@ -488,7 +488,7 @@ bool WalletModel::bumpFee(uint256 hash, uint256& new_hash)
          return false;
     }
 
-    const bool create_psbt = privateKeysDisabled();
+    const bool create_psbt = m_wallet->privateKeysDisabled();
 
     // allow a user based fee verification
     QString questionString = create_psbt ? tr("Do you want to draft a transaction with fee increase?") : tr("Do you want to increase the fee?");
@@ -558,16 +558,6 @@ bool WalletModel::isWalletEnabled()
    return !gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET);
 }
 
-bool WalletModel::privateKeysDisabled() const
-{
-    return m_wallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS);
-}
-
-bool WalletModel::canGetAddresses() const
-{
-    return m_wallet->canGetAddresses();
-}
-
 QString WalletModel::getWalletName() const
 {
     return QString::fromStdString(m_wallet->getWalletName());
diff --git a/src/qt/walletmodel.h b/src/qt/walletmodel.h
index 8087356f5e..7936014af9 100644
--- a/src/qt/walletmodel.h
+++ b/src/qt/walletmodel.h
@@ -140,8 +140,6 @@ public:
     bool bumpFee(uint256 hash, uint256& new_hash);
 
     static bool isWalletEnabled();
-    bool privateKeysDisabled() const;
-    bool canGetAddresses() const;
 
     interfaces::Node& node() const { return m_node; }
     interfaces::Wallet& wallet() const { return *m_wallet; }