src/gtk/taskbar.cpp

   1 /////////////////////////////////////////////////////////////////////////
   2 // File:        src/gtk/taskbar.cpp
   3 // Purpose:     wxTaskBarIcon (src/unix/taskbarx11.cpp) helper for GTK2
   4 // Author:      Vaclav Slavik
   5 // Modified by:
   6 // Created:     2004/05/29
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vaclav Slavik, 2004
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #include "wx/gtk/taskbarpriv.h"
  16
  17 #ifndef WX_PRECOMP
  18     #include "wx/log.h"
  19     #include "wx/frame.h"
  20 #endif
  21
  22 #include "wx/menu.h"
  23
  24 #include <gdk/gdkx.h>
  25
  26 #ifdef __WXGTK20__
  27 #include <gtk/gtkversion.h>
  28 #if GTK_CHECK_VERSION(2, 1, 0)
  29
  30 #include "gtk/gtk.h"
  31
  32 #include "eggtrayicon.h"
  33
  34 wxTaskBarIconAreaBase::wxTaskBarIconAreaBase()
  35 {
  36     if (IsProtocolSupported())
  37     {
  38         m_widget = GTK_WIDGET(egg_tray_icon_new("systray icon"));
  39         gtk_window_set_resizable(GTK_WINDOW(m_widget), false);
  40
  41         wxLogTrace(_T("systray"), _T("using freedesktop.org systray spec"));
  42     }
  43
  44     wxTopLevelWindow::Create(
  45             NULL, wxID_ANY, _T("systray icon"),
  46             wxDefaultPosition, wxDefaultSize,
  47             wxDEFAULT_FRAME_STYLE | wxFRAME_NO_TASKBAR | wxSIMPLE_BORDER |
  48             wxFRAME_SHAPED,
  49             wxEmptyString /*eggtray doesn't like setting wmclass*/);
  50
  51     m_invokingWindow = NULL;
  52 }
  53
  54 bool wxTaskBarIconAreaBase::IsProtocolSupported()
  55 {
  56     static int s_supported = -1;
  57     if (s_supported == -1)
  58     {
  59         Display *display = GDK_DISPLAY();
  60         Screen *screen = DefaultScreenOfDisplay(display);
  61
  62         wxString name;
  63         name.Printf(_T("_NET_SYSTEM_TRAY_S%d"), XScreenNumberOfScreen(screen));
  64         Atom atom = XInternAtom(display, name.ToAscii(), False);
  65
  66         Window manager = XGetSelectionOwner(display, atom);
  67
  68         s_supported = (manager != None);
  69     }
  70
  71     return (bool)s_supported;
  72 }
  73
  74 //-----------------------------------------------------------------------------
  75 // Pop-up menu stuff
  76 //-----------------------------------------------------------------------------
  77
  78 extern "C" WXDLLIMPEXP_CORE void gtk_pop_hide_callback( GtkWidget *widget, bool* is_waiting  );
  79
  80 extern WXDLLIMPEXP_CORE void SetInvokingWindow( wxMenu *menu, wxWindow* win );
  81
  82 extern "C" WXDLLIMPEXP_CORE
  83     void wxPopupMenuPositionCallback( GtkMenu *menu,
  84                                       gint *x, gint *y,
  85                                       gboolean * WXUNUSED(whatever),
  86                                       gpointer user_data );
  87
  88 #if wxUSE_MENUS_NATIVE
  89 bool wxTaskBarIconAreaBase::DoPopupMenu( wxMenu *menu, int x, int y )
  90 {
  91     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
  92
  93     wxCHECK_MSG( menu != NULL, false, wxT("invalid popup-menu") );
  94
  95     // NOTE: if you change this code, you need to update
  96     //       the same code in window.cpp as well. This
  97     //       is ugly code duplication, I know,
  98
  99     SetInvokingWindow( menu, this );
 100
 101     menu->UpdateUI( m_invokingWindow );
 102
 103     bool is_waiting = true;
 104
 105     gulong handler = g_signal_connect (menu->m_menu, "hide",
 106                                        G_CALLBACK (gtk_pop_hide_callback),
 107                                        &is_waiting);
 108
 109     wxPoint pos;
 110     gpointer userdata;
 111     GtkMenuPositionFunc posfunc;
 112     if ( x == -1 && y == -1 )
 113     {
 114         // use GTK's default positioning algorithm
 115         userdata = NULL;
 116         posfunc = NULL;
 117     }
 118     else
 119     {
 120         pos = ClientToScreen(wxPoint(x, y));
 121         userdata = &pos;
 122         posfunc = wxPopupMenuPositionCallback;
 123     }
 124
 125     gtk_menu_popup(
 126                   GTK_MENU(menu->m_menu),
 127                   (GtkWidget *) NULL,           // parent menu shell
 128                   (GtkWidget *) NULL,           // parent menu item
 129                   posfunc,                      // function to position it
 130                   userdata,                     // client data
 131                   0,                            // button used to activate it
 132                   gtk_get_current_event_time()
 133                 );
 134
 135     while (is_waiting)
 136     {
 137         gtk_main_iteration();
 138     }
 139
 140     g_signal_handler_disconnect (menu->m_menu, handler);
 141
 142     return true;
 143 }
 144 #endif // wxUSE_MENUS_NATIVE
 145
 146 #endif // __WXGTK20__
 147 #endif // GTK_CHECK_VERSION(2, 1, 0)