Provide shorter synonyms for wxEVT_XXX constants.

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

diff --git a/src/gtk/dialog.cpp b/src/gtk/dialog.cpp
index 4cf2730f9c3854d099d2af3a82771397c1959f77..a79ee902e29a864fbb219f9d427e172f3ccec146 100644 (file)
--- a/src/gtk/dialog.cpp
+++ b/src/gtk/dialog.cpp
@@ -22,9 +22,8 @@
 #include "wx/testing.h"
 
 #include <gtk/gtk.h>
-
-// this is defined in src/gtk/toplevel.cpp
-extern int wxOpenModalDialogsCount;
+#include "wx/gtk/private/gtk2-compat.h"
+#include "wx/gtk/private/dialogcount.h"
 
 wxDEFINE_TIED_SCOPED_PTR_TYPE(wxGUIEventLoop)
 
@@ -94,10 +93,43 @@ bool wxDialog::IsModal() const
     return m_modalShowing;
 }
 
-void wxDialog::SetModal( bool WXUNUSED(flag) )
+// Workaround for Ubuntu overlay scrollbar, which adds our GtkWindow to a
+// private window group in a GtkScrollbar realize handler. This breaks the grab
+// done by gtk_window_set_modal(), and allows menus and toolbars in the parent
+// frame to remain active. So, we install an emission hook on the "realize"
+// signal while showing a modal dialog. For any realize on a GtkScrollbar,
+// we check the top level parent to see if it has an explicitly set window
+// group that is not the same as its transient parent. If we find this, we
+// put the top level back in the same window group as its transient parent, and
+// re-add the grab.
+// Ubuntu 12.04 and 12.10 are known to have this problem.
+
+// need 2.10 for gtk_window_get_group()
+#if GTK_CHECK_VERSION(2,10,0)
+extern "C" {
+static gboolean
+realize_hook(GSignalInvocationHint*, unsigned, const GValue* param_values, void*)
 {
-    wxFAIL_MSG( wxT("wxDialog:SetModal obsolete now") );
+    void* p = g_value_peek_pointer(param_values);
+    if (GTK_IS_SCROLLBAR(p))
+    {
+        GtkWindow* toplevel = GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(p)));
+        GtkWindow* transient_parent = gtk_window_get_transient_for(toplevel);
+        if (transient_parent && gtk_window_has_group(toplevel))
+        {
+            GtkWindowGroup* group = gtk_window_get_group(toplevel);
+            GtkWindowGroup* group_parent = gtk_window_get_group(transient_parent);
+            if (group != group_parent)
+            {
+                gtk_window_group_add_window(group_parent, toplevel);
+                gtk_grab_add(GTK_WIDGET(toplevel));
+            }
+        }
+    }
+    return true;
 }
+}
+#endif // GTK 2.10
 
 int wxDialog::ShowModal()
 {
@@ -121,11 +153,24 @@ int wxDialog::ShowModal()
 
     wxBusyCursorSuspender cs; // temporarily suppress the busy cursor
 
+#if GTK_CHECK_VERSION(2,10,0)
+    unsigned sigId = 0;
+    gulong hookId = 0;
+#ifndef __WXGTK3__
+    // Ubuntu overlay scrollbar uses at least GTK 2.24
+    if (gtk_check_version(2,24,0) == NULL)
+#endif
+    {
+        sigId = g_signal_lookup("realize", GTK_TYPE_WIDGET);
+        hookId = g_signal_add_emission_hook(sigId, 0, realize_hook, NULL, NULL);
+    }
+#endif
+
     Show( true );
 
     m_modalShowing = true;
 
-    wxOpenModalDialogsCount++;
+    wxOpenModalDialogLocker modalLock;
 
     // NOTE: gtk_window_set_modal internally calls gtk_grab_add() !
     gtk_window_set_modal(GTK_WINDOW(m_widget), TRUE);
@@ -136,9 +181,12 @@ int wxDialog::ShowModal()
         m_modalLoop->Run();
     }
 
-    gtk_window_set_modal(GTK_WINDOW(m_widget), FALSE);
+#if GTK_CHECK_VERSION(2,10,0)
+    if (sigId)
+        g_signal_remove_emission_hook(sigId, hookId);
+#endif
 
-    wxOpenModalDialogsCount--;
+    gtk_window_set_modal(GTK_WINDOW(m_widget), FALSE);
 
     return GetReturnCode();
 }