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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "taskbarpriv.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #include "wx/gtk/taskbarpriv.h"
  20 #include "wx/log.h"
  21 #include "wx/frame.h"
  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 = gtk_signal_connect( GTK_OBJECT(menu->m_menu),
 106                                          "hide",
 107                                          GTK_SIGNAL_FUNC(gtk_pop_hide_callback),
 108                                          (gpointer)&is_waiting );
 109
 110     wxPoint pos;
 111     gpointer userdata;
 112     GtkMenuPositionFunc posfunc;
 113     if ( x == -1 && y == -1 )
 114     {
 115         // use GTK's default positioning algorithm
 116         userdata = NULL;
 117         posfunc = NULL;
 118     }
 119     else
 120     {
 121         pos = ClientToScreen(wxPoint(x, y));
 122         userdata = &pos;
 123         posfunc = wxPopupMenuPositionCallback;
 124     }
 125
 126     gtk_menu_popup(
 127                   GTK_MENU(menu->m_menu),
 128                   (GtkWidget *) NULL,           // parent menu shell
 129                   (GtkWidget *) NULL,           // parent menu item
 130                   posfunc,                      // function to position it
 131                   userdata,                     // client data
 132                   0,                            // button used to activate it
 133                   gtk_get_current_event_time()
 134                 );
 135
 136     while (is_waiting)
 137     {
 138         gtk_main_iteration();
 139     }
 140
 141     gtk_signal_disconnect(GTK_OBJECT(menu->m_menu), handler);
 142
 143     return true;
 144 }
 145 #endif // wxUSE_MENUS_NATIVE
 146
 147 #endif // __WXGTK20__
 148 #endif // GTK_CHECK_VERSION(2, 1, 0)