atk/atkplug.c

   1 /* ATK -  Accessibility Toolkit
   2  * Copyright (C) 2009 Novell, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the
  16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17  * Boston, MA 02111-1307, USA.
  18  */
  19
  20 #include "atk.h"
  21 #include "atkplug.h"
  22
  23 static void atk_component_interface_init (AtkComponentIface *iface);
  24
  25 static void atk_plug_class_init (AtkPlugClass *klass);
  26
  27 G_DEFINE_TYPE_WITH_CODE (AtkPlug, atk_plug, ATK_TYPE_OBJECT,
  28                          G_IMPLEMENT_INTERFACE (ATK_TYPE_COMPONENT, atk_component_interface_init))
  29
  30 static void
  31 atk_plug_init (AtkPlug* obj)
  32 {
  33 }
  34
  35 static void
  36 atk_plug_class_init (AtkPlugClass* klass)
  37 {
  38   klass->get_object_id = NULL;
  39 }
  40
  41 static void
  42 atk_component_interface_init (AtkComponentIface *iface)
  43 {
  44 }
  45
  46 AtkObject*
  47 atk_plug_new (void)
  48 {
  49   AtkObject* accessible;
  50
  51   accessible = g_object_new (ATK_TYPE_PLUG, NULL);
  52   g_return_val_if_fail (accessible != NULL, NULL);
  53
  54   accessible->role = ATK_ROLE_FILLER;
  55   accessible->layer = ATK_LAYER_WIDGET;
  56
  57   return accessible;
  58 }
  59
  60 /**
  61  * atk_plug_get_plug_id:
  62  * @obj: an #AtkPlug
  63  *
  64  * Gets the unique ID of an #AtkPlug object, which can be used to embed inside
  65  * of an #AtkSocket using atk_socket_embed().
  66  * Internally, this calls a class function that should be registered by the
  67  * IPC layer (eg, at-spi2-atk).  The implementor of an AtkSocket object
  68  * should call this function (after atk-bridge is loaded) and pass the value
  69  * to the process implementing the AtkPlug into which the AtkSocket is
  70  * embedded.
  71  *
  72  * Returns: the unique ID for the plug
  73  *
  74  * Since: 1.30
  75  **/
  76 gchar*
  77 atk_plug_get_id (AtkPlug* obj)
  78 {
  79   AtkPlugClass *klass;
  80
  81   g_return_val_if_fail (ATK_IS_PLUG (obj), NULL);
  82
  83   klass = g_type_class_peek (ATK_TYPE_PLUG);
  84
  85   if (klass && klass->get_object_id)
  86     return (klass->get_object_id) (obj);
  87   else
  88     return NULL;
  89 }