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 #if wxUSE_TASKBARICON
  16
  17 #include "wx/gtk/taskbarpriv.h"
  18
  19 #ifndef WX_PRECOMP
  20     #include "wx/log.h"
  21     #include "wx/frame.h"
  22     #include "wx/menu.h"
  23 #endif
  24
  25 #include <gdk/gdkx.h>
  26
  27 #ifdef __WXGTK20__
  28 #include <gtk/gtkversion.h>
  29 #if GTK_CHECK_VERSION(2, 1, 0)
  30
  31 #include "gtk/gtk.h"
  32
  33 #include "eggtrayicon.h"
  34
  35 wxTaskBarIconAreaBase::wxTaskBarIconAreaBase()
  36 {
  37     if (IsProtocolSupported())
  38     {
  39         m_widget = GTK_WIDGET(egg_tray_icon_new("systray icon"));
  40         gtk_window_set_resizable(GTK_WINDOW(m_widget), false);
  41
  42         wxLogTrace(_T("systray"), _T("using freedesktop.org systray spec"));
  43     }
  44
  45     wxTopLevelWindow::Create(
  46             NULL, wxID_ANY, _T("systray icon"),
  47             wxDefaultPosition, wxDefaultSize,
  48             wxDEFAULT_FRAME_STYLE | wxFRAME_NO_TASKBAR | wxSIMPLE_BORDER |
  49             wxFRAME_SHAPED,
  50             wxEmptyString /*eggtray doesn't like setting wmclass*/);
  51
  52     m_invokingWindow = NULL;
  53 }
  54
  55 bool wxTaskBarIconAreaBase::IsProtocolSupported()
  56 {
  57     static int s_supported = -1;
  58     if (s_supported == -1)
  59     {
  60         Display *display = GDK_DISPLAY();
  61         Screen *screen = DefaultScreenOfDisplay(display);
  62
  63         char name[32];
  64         g_snprintf(name, sizeof(name), "_NET_SYSTEM_TRAY_S%d",
  65             XScreenNumberOfScreen(screen));
  66         Atom atom = XInternAtom(display, name, False);
  67
  68         Window manager = XGetSelectionOwner(display, atom);
  69
  70         s_supported = (manager != None);
  71     }
  72
  73     return (bool)s_supported;
  74 }
  75
  76 //-----------------------------------------------------------------------------
  77 // Pop-up menu stuff
  78 //-----------------------------------------------------------------------------
  79
  80 extern "C" WXDLLIMPEXP_CORE void gtk_pop_hide_callback( GtkWidget *widget, bool* is_waiting  );
  81
  82 extern WXDLLIMPEXP_CORE void SetInvokingWindow( wxMenu *menu, wxWindow* win );
  83
  84 extern "C" WXDLLIMPEXP_CORE
  85     void wxPopupMenuPositionCallback( GtkMenu *menu,
  86                                       gint *x, gint *y,
  87                                       gboolean * WXUNUSED(whatever),
  88                                       gpointer user_data );
  89
  90 #if wxUSE_MENUS_NATIVE
  91 bool wxTaskBarIconAreaBase::DoPopupMenu( wxMenu *menu, int x, int y )
  92 {
  93     wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
  94
  95     wxCHECK_MSG( menu != NULL, false, wxT("invalid popup-menu") );
  96
  97     // NOTE: if you change this code, you need to update
  98     //       the same code in window.cpp as well. This
  99     //       is ugly code duplication, I know,
 100
 101     SetInvokingWindow( menu, this );
 102
 103     menu->UpdateUI( m_invokingWindow );
 104
 105     bool is_waiting = true;
 106
 107     gulong handler = g_signal_connect (menu->m_menu, "hide",
 108                                        G_CALLBACK (gtk_pop_hide_callback),
 109                                        &is_waiting);
 110
 111     wxPoint pos;
 112     gpointer userdata;
 113     GtkMenuPositionFunc posfunc;
 114     if ( x == -1 && y == -1 )
 115     {
 116         // use GTK's default positioning algorithm
 117         userdata = NULL;
 118         posfunc = NULL;
 119     }
 120     else
 121     {
 122         pos = ClientToScreen(wxPoint(x, y));
 123         userdata = &pos;
 124         posfunc = wxPopupMenuPositionCallback;
 125     }
 126
 127     gtk_menu_popup(
 128                   GTK_MENU(menu->m_menu),
 129                   (GtkWidget *) NULL,           // parent menu shell
 130                   (GtkWidget *) NULL,           // parent menu item
 131                   posfunc,                      // function to position it
 132                   userdata,                     // client data
 133                   0,                            // button used to activate it
 134                   gtk_get_current_event_time()
 135                 );
 136
 137     while (is_waiting)
 138     {
 139         gtk_main_iteration();
 140     }
 141
 142     g_signal_handler_disconnect (menu->m_menu, handler);
 143
 144     return true;
 145 }
 146 #endif // wxUSE_MENUS_NATIVE
 147
 148 #endif // __WXGTK20__
 149 #endif // GTK_CHECK_VERSION(2, 1, 0)
 150
 151 #endif // wxUSE_TASKBARICON