src/gtk/taskbar.cpp

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