Return NULL from wxWindow::GetCapture() when the capture is being lost.

[wxWidgets.git] / src / gtk / menu.cpp

diff --git a/src/gtk/menu.cpp b/src/gtk/menu.cpp
index 09fecd8a14dff94d74241e3925363db4f4dec1c8..4cf5d7f04e070653e570eacf6e596b6eb87deea6 100644 (file)
--- a/src/gtk/menu.cpp
+++ b/src/gtk/menu.cpp
@@ -2,7 +2,6 @@
 // Name:        src/gtk/menu.cpp
 // Purpose:     implementation of wxMenuBar and wxMenu classes for wxGTK
 // Author:      Robert Roebling
-// Id:          $Id$
 // Copyright:   (c) 1998 Robert Roebling
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
@@ -152,6 +151,18 @@ wxMenuBar::wxMenuBar()
 namespace
 {
 
+// This should be called when detaching menus to ensure that they don't keep
+// focus grab, because if they do, they continue getting all GTK+ messages
+// which they can't process any more in their (soon to be) unrealized state.
+void
+EnsureNoGrab(GtkWidget* widget)
+{
+#if !wxUSE_LIBHILDON && !wxUSE_LIBHILDON2
+    gtk_widget_hide(widget);
+    gtk_grab_remove(widget);
+#endif // !wxUSE_LIBHILDON && !wxUSE_LIBHILDON2
+}
+
 void
 DetachFromFrame(wxMenu* menu, wxFrame* frame)
 {
@@ -173,6 +184,8 @@ DetachFromFrame(wxMenu* menu, wxFrame* frame)
             DetachFromFrame(menuitem->GetSubMenu(), frame);
         node = node->GetNext();
     }
+
+    EnsureNoGrab(menu->m_menu);
 }
 
 void
@@ -260,6 +273,8 @@ void wxMenuBar::Detach()
         node = node->GetNext();
     }
 
+    EnsureNoGrab(m_widget);
+
     wxMenuBarBase::Detach();
 }