include/wx/gtk/private/dialogcount.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/gtk/private/dialogcount.h
   3 // Purpose:     Helper for temporarily changing wxOpenModalDialogsCount global.
   4 // Author:      Vadim Zeitlin
   5 // Created:     2013-03-21
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2013 Vadim Zeitlin <vadim@wxwidgets.org>
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_GTK_PRIVATE_DIALOGCOUNT_H_
  12 #define _WX_GTK_PRIVATE_DIALOGCOUNT_H_
  13
  14 #include "wx/defs.h"
  15
  16 // This global variable contains the number of currently opened modal dialogs.
  17 // When it is non null, the global menu used in Ubuntu Unity needs to be
  18 // explicitly disabled as this doesn't currently happen on its own due to a bug
  19 // in Unity, see https://bugs.launchpad.net/indicator-appmenu/+bug/674605
  20 //
  21 // For this to work, all modal dialogs must use wxOpenModalDialogLocker class
  22 // below to increment this variable while they are indeed being modally shown.
  23 //
  24 // This variable is defined in src/gtk/toplevel.cpp
  25 extern int wxOpenModalDialogsCount;
  26
  27 // ----------------------------------------------------------------------------
  28 // wxOpenModalDialogLocker: Create an object of this class to increment
  29 //                          wxOpenModalDialogsCount during its lifetime.
  30 // ----------------------------------------------------------------------------
  31
  32 class wxOpenModalDialogLocker
  33 {
  34 public:
  35     wxOpenModalDialogLocker()
  36     {
  37         wxOpenModalDialogsCount++;
  38     }
  39
  40     ~wxOpenModalDialogLocker()
  41     {
  42         wxOpenModalDialogsCount--;
  43     }
  44
  45 private:
  46     wxDECLARE_NO_COPY_CLASS(wxOpenModalDialogLocker);
  47 };
  48
  49 #endif // _WX_GTK_PRIVATE_DIALOGCOUNT_H_