registryd/desktop.c

   1 /*
   2  * AT-SPI - Assistive Technology Service Provider Interface
   3  * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
   4  *
   5  * Copyright 2001 Sun Microsystems Inc.
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Library General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Library General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Library General Public
  18  * License along with this library; if not, write to the
  19  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20  * Boston, MA 02111-1307, USA.
  21  */
  22
  23 /*
  24  * desktop.c: implements SpiDesktop.idl
  25  *
  26  */
  27
  28 /* #include <config.h> */
  29 #include <libbonobo.h>
  30
  31 #include <stdio.h>
  32
  33 /*
  34  * This pulls the CORBA definitions for the "Accessibility::Accessible" server
  35  */
  36 #include <libspi/Accessibility.h>
  37
  38 /*
  39  * This pulls the definition for the BonoboObject (Gtk Type)
  40  */
  41 #include "desktop.h"
  42
  43 /*
  44  * Our parent Gtk object type
  45  */
  46 #define PARENT_TYPE SPI_ACCESSIBLE_TYPE
  47
  48 /*
  49  * A pointer to our parent object class
  50  */
  51 static SpiAccessibleClass *parent_class;
  52
  53 static void
  54 spi_desktop_init (SpiDesktop  *desktop)
  55 {
  56   SPI_ACCESSIBLE (desktop)->atko = g_object_new (atk_object_get_type(), NULL);
  57   desktop->applications = NULL;
  58   atk_object_set_name (ATK_OBJECT (SPI_ACCESSIBLE (desktop)->atko), "main");
  59 }
  60
  61 static CORBA_long
  62 impl_desktop_get_child_count (PortableServer_Servant servant,
  63                               CORBA_Environment * ev)
  64 {
  65   SpiDesktop *desktop = SPI_DESKTOP (bonobo_object_from_servant (servant));
  66   if (desktop->applications)
  67     {
  68       return g_list_length (desktop->applications);
  69     }
  70   else
  71     {
  72       return 0;
  73     }
  74 }
  75
  76 static Accessibility_Accessible
  77 impl_desktop_get_child_at_index (PortableServer_Servant servant,
  78                                  const CORBA_long index,
  79                                  CORBA_Environment * ev)
  80 {
  81   SpiDesktop *desktop = SPI_DESKTOP (bonobo_object_from_servant (servant));
  82   CORBA_Object retval;
  83   if ((desktop->applications) && (index < g_list_length (desktop->applications)))
  84     {
  85       fprintf (stderr, "getting application %ld\n", (long) index);
  86       /* */
  87       fprintf (stderr, "object address %p\n",
  88                g_list_nth_data (desktop->applications, index));
  89       retval =  CORBA_Object_duplicate (
  90               (CORBA_Object) g_list_nth_data (desktop->applications, index), ev);
  91     }
  92   else
  93     {
  94       fprintf (stderr, "no %ldth child\n", (long) index);
  95       retval = CORBA_OBJECT_NIL;
  96     }
  97   return (Accessibility_Accessible) retval;
  98 }
  99
 100 static void
 101 spi_desktop_class_init (SpiDesktopClass  *klass)
 102 {
 103         SpiAccessibleClass * spi_accessible_class = (SpiAccessibleClass *) klass;
 104         POA_Accessibility_Accessible__epv *epv = &spi_accessible_class->epv;
 105
 106         parent_class = g_type_class_ref (SPI_ACCESSIBLE_TYPE);
 107
 108         epv->_get_childCount = impl_desktop_get_child_count;
 109         epv->getChildAtIndex = impl_desktop_get_child_at_index;
 110 }
 111
 112 GType
 113 spi_desktop_get_type (void)
 114 {
 115         static GType type = 0;
 116
 117         if (!type) {
 118                 static const GTypeInfo tinfo = {
 119                         sizeof (SpiDesktopClass),
 120                         (GBaseInitFunc) NULL,
 121                         (GBaseFinalizeFunc) NULL,
 122                         (GClassInitFunc) spi_desktop_class_init,
 123                         (GClassFinalizeFunc) NULL,
 124                         NULL, /* class data */
 125                         sizeof (SpiDesktop),
 126                         0, /* n preallocs */
 127                         (GInstanceInitFunc) spi_desktop_init,
 128                         NULL /* value table */
 129                 };
 130                 /*
 131                  *   Here we use bonobo_type_unique instead of
 132                  * gtk_type_unique, this auto-generates a load of
 133                  * CORBA structures for us. All derived types must
 134                  * use bonobo_type_unique.
 135                  */
 136                 type = bonobo_type_unique (
 137                         PARENT_TYPE,
 138                         POA_Accessibility_Desktop__init,
 139                         NULL,
 140                         G_STRUCT_OFFSET (SpiDesktopClass, epv),
 141                         &tinfo,
 142                         "SpiDesktop");
 143         }
 144
 145         return type;
 146 }
 147
 148 SpiDesktop *
 149 spi_desktop_new (void)
 150 {
 151     SpiDesktop *retval =
 152                SPI_DESKTOP (g_object_new (spi_desktop_get_type (), NULL));
 153     return retval;
 154 }