Fix minimized window bug on Linux

On some Linux systems the minimized to the taskbar (iconified) main
window cannot be restored properly using actions from the systray icon
menu when QSystemTrayIcon::contextMenu() is a child of the main window.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/qt/bitcoingui.h b/src/qt/bitcoingui.h
index e8b857c17c..813bbe2788 100644
--- a/src/qt/bitcoingui.h
+++ b/src/qt/bitcoingui.h
@@ -16,7 +16,6 @@
 #include <QLabel>
 #include <QMainWindow>
 #include <QMap>
-#include <QMenu>
 #include <QPoint>
 #include <QSystemTrayIcon>
 
@@ -47,6 +46,7 @@ class Node;
 QT_BEGIN_NAMESPACE
 class QAction;
 class QComboBox;
+class QMenu;
 class QProgressBar;
 class QProgressDialog;
 QT_END_NAMESPACE
@@ -141,7 +141,7 @@ private:
     QComboBox* m_wallet_selector = nullptr;
 
     QSystemTrayIcon* trayIcon = nullptr;
-    QMenu* trayIconMenu = nullptr;
+    const std::unique_ptr<QMenu> trayIconMenu;
     Notificator* notificator = nullptr;
     RPCConsole* rpcConsole = nullptr;
     HelpMessageDialog* helpMessageDialog = nullptr;