Related: tdf#102909 gtk3: remove configure loophole of non-native menubar

the ENABLE_DBUS + ENABLE_GIO thing is to allow building against an
old gtk2 baseline. If building against gtk3 then gio and dbus are
available, and allowing the unusual configure path through gtk3 results
in a non-supported cruddy build

Change-Id: Ic6306fe2f9951714fd5875c24aedda1d7c6f2b93
Reviewed-on: https://gerrit.libreoffice.org/40420Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

vcl/inc/unx/gtk/gtksalmenu.hxx

@@ -22,7 +22,11 @@
 #include <unx/gtk/gtkframe.hxx>
 #include <vcl/idle.hxx>
 
-#if ENABLE_DBUS && ENABLE_GIO && \
+#if GTK_CHECK_VERSION(3,0,0)
+#  define ENABLE_GMENU_INTEGRATION
+#  include <unx/gtk/glomenu.h>
+#  include <unx/gtk/gloactiongroup.h>
+#elif ENABLE_DBUS && ENABLE_GIO && \
     (GLIB_MAJOR_VERSION > 2 || GLIB_MINOR_VERSION >= 36)
 #  define ENABLE_GMENU_INTEGRATION
 #  include <unx/gtk/glomenu.h>

vcl/unx/gtk3/gtk3gtkframe.cxx

@@ -21,6 +21,8 @@
 #include <unx/gtk/gtkdata.hxx>
 #include <unx/gtk/gtkinst.hxx>
 #include <unx/gtk/gtkgdi.hxx>
+#include <unx/gtk/gtksalmenu.hxx>
+#include <unx/gtk/hudawareness.h>
 #include <vcl/help.hxx>
 #include <vcl/keycodes.hxx>
 #include <vcl/layout.hxx>
@@ -42,13 +44,6 @@
 
 #include <config_gio.h>
 
-#if ENABLE_DBUS && ENABLE_GIO
-#  include <unx/gtk/gtksalmenu.hxx>
-#endif
-#if defined ENABLE_GMENU_INTEGRATION // defined in gtksalmenu.hxx above
-#  include <unx/gtk/hudawareness.h>
-#endif
-
 #include <gtk/gtk.h>
 
 #include <X11/Xlib.h>
@@ -109,9 +104,7 @@ using namespace com::sun::star;
 
 int GtkSalFrame::m_nFloats = 0;
 
-#if defined ENABLE_GMENU_INTEGRATION
 static GDBusConnection* pSessionBus = nullptr;
-#endif
 
 static sal_uInt16 GetKeyModCode( guint state )
 {
@@ -504,8 +497,6 @@ GtkSalFrame::GtkSalFrame( SystemParentData* pSysData )
     Init( pSysData );
 }
 
-#ifdef ENABLE_GMENU_INTEGRATION
-
 // AppMenu watch functions.
 
 static void ObjectDestroyedNotify( gpointer data )
@@ -765,11 +756,9 @@ void on_registrar_unavailable( GDBusConnection * /*connection*/,
         pGtkSalMenu->EnableUnity(false);
     }
 }
-#endif
 
 void GtkSalFrame::EnsureAppMenuWatch()
 {
-#ifdef ENABLE_GMENU_INTEGRATION
     if ( !m_nWatcherId )
     {
         // Get a DBus session connection.
@@ -790,9 +779,6 @@ void GtkSalFrame::EnsureAppMenuWatch()
                                                        this,
                                                        nullptr );
     }
-#else
-    (void) this; // loplugin:staticmethods
-#endif
 }
 
 void GtkSalFrame::InvalidateGraphics()
@@ -852,15 +838,14 @@ GtkSalFrame::~GtkSalFrame()
         gtk_widget_destroy( GTK_WIDGET(m_pTopLevelGrid) );
     {
         SolarMutexGuard aGuard;
-#if defined ENABLE_GMENU_INTEGRATION
+
         if(m_nWatcherId)
             g_bus_unwatch_name(m_nWatcherId);
-#endif
+
         if( m_pWindow )
         {
             g_object_set_data( G_OBJECT( m_pWindow ), "SalFrame", nullptr );
 
-#if defined ENABLE_GMENU_INTEGRATION
             if ( pSessionBus )
             {
                 if ( m_nHudAwarenessId )
@@ -874,7 +859,6 @@ GtkSalFrame::~GtkSalFrame()
                 if ( m_nAppActionGroupExportId )
                     g_dbus_connection_unexport_action_group( pSessionBus, m_nAppActionGroupExportId );
             }
-#endif
             gtk_widget_destroy( m_pWindow );
         }
     }
@@ -1272,10 +1256,8 @@ void GtkSalFrame::Init( SalFrame* pParent, SalFrameStyleFlags nStyle )
 
     if( eWinType == GTK_WINDOW_TOPLEVEL )
     {
-#ifdef ENABLE_GMENU_INTEGRATION
         // Enable DBus native menu if available.
         ensure_dbus_setup( this );
-#endif
 
     }
 }