[Qt] Disable creating receive addresses when private keys are disabled

src/interfaces/wallet.cpp

@@ -426,6 +426,7 @@ public:
     }
     unsigned int getConfirmTarget() override { return m_wallet.m_confirm_target; }
     bool hdEnabled() override { return m_wallet.IsHDEnabled(); }
+    bool IsWalletFlagSet(uint64_t flag) override { return m_wallet.IsWalletFlagSet(flag); }
     OutputType getDefaultAddressType() override { return m_wallet.m_default_address_type; }
     OutputType getDefaultChangeType() override { return m_wallet.m_default_change_type; }
     std::unique_ptr<Handler> handleUnload(UnloadFn fn) override

src/interfaces/wallet.h

@@ -236,6 +236,9 @@ public:
     // Return whether HD enabled.
     virtual bool hdEnabled() = 0;
 
+    // check if a certain wallet flag is set.
+    virtual bool IsWalletFlagSet(uint64_t flag) = 0;
+
     // Get default address type.
     virtual OutputType getDefaultAddressType() = 0;
 

src/qt/receivecoinsdialog.cpp

@@ -99,6 +99,9 @@ void ReceiveCoinsDialog::setModel(WalletModel *_model)
         } else {
             ui->useBech32->setCheckState(Qt::Unchecked);
         }
+
+        // eventually disable the main receive button if private key operations are disabled
+        ui->receiveButton->setEnabled(!model->privateKeysDisabled());
     }
 }
 

src/qt/walletmodel.cpp

@@ -558,6 +558,11 @@ bool WalletModel::isWalletEnabled()
    return !gArgs.GetBoolArg("-disablewallet", DEFAULT_DISABLE_WALLET);
 }
 
+bool WalletModel::privateKeysDisabled() const
+{
+    return m_wallet->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS);
+}
+
 QString WalletModel::getWalletName() const
 {
     return QString::fromStdString(m_wallet->getWalletName());

src/qt/walletmodel.h

@@ -197,6 +197,7 @@ public:
     bool bumpFee(uint256 hash);
 
     static bool isWalletEnabled();
+    bool privateKeysDisabled() const;
 
     interfaces::Node& node() const { return m_node; }
     interfaces::Wallet& wallet() const { return *m_wallet; }