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