merge bitcoin-core/gui#219: Prevent the main window popup menu

Author: kwvg

src/qt/bitcoingui.cpp

@@ -95,6 +95,8 @@ BitcoinGUI::BitcoinGUI(interfaces::Node& node, const NetworkStyle* networkStyle,
         move(QGuiApplication::primaryScreen()->availableGeometry().center() - frameGeometry().center());
     }
 
+    setContextMenuPolicy(Qt::PreventContextMenu);
+
 #ifdef ENABLE_WALLET
     enableWallet = WalletModel::isWalletEnabled();
 #endif // ENABLE_WALLET
@@ -669,7 +671,6 @@ void BitcoinGUI::createToolBars()
     {
         QToolBar *toolbar = new QToolBar(tr("Tabs toolbar"));
         appToolBar = toolbar;
-        toolbar->setContextMenuPolicy(Qt::PreventContextMenu);
         toolbar->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
         toolbar->setToolButtonStyle(Qt::ToolButtonTextOnly);
         toolbar->setMovable(false); // remove unused icon in upper left corner