2009-09-09 Mark Doffman <mark.doffman@codethink.co.uk>
[platform/core/uifw/at-spi2-atk.git] / atk-adaptor / tree-adaptor.c
1 /*
2  * AT-SPI - Assistive Technology Service Provider Interface
3  * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
4  *
5  * Copyright 2008 Novell, Inc.
6  * Copyright 2001, 2002 Sun Microsystems Inc.,
7  * Copyright 2001, 2002 Ximian, Inc.
8  * Copyright 2008, 2009 Codethink Ltd.
9  *
10  * This library is free software; you can redistribute it and/or
11  * modify it under the terms of the GNU Library General Public
12  * License as published by the Free Software Foundation; either
13  * version 2 of the License, or (at your option) any later version.
14  *
15  * This library is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18  * Library General Public License for more details.
19  *
20  * You should have received a copy of the GNU Library General Public
21  * License along with this library; if not, write to the
22  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
23  * Boston, MA 02111-1307, USA.
24  */
25
26 #include <string.h>
27
28 #include <atk/atk.h>
29 #include <droute/droute.h>
30
31 #include "bridge.h"
32 #include "accessible-register.h"
33 #include "accessible-marshaller.h"
34 #include "common/spi-dbus.h"
35
36 /*---------------------------------------------------------------------------*/
37
38 /* For use as a GHFunc */
39 static void
40 append_accessible_hf (gpointer key, gpointer obj_data, gpointer iter)
41 {
42   spi_atk_append_accessible (ATK_OBJECT(obj_data), iter);
43 }
44
45 /*---------------------------------------------------------------------------*/
46
47 void
48 spi_emit_cache_removal (guint ref,  DBusConnection *bus)
49 {
50   DBusMessage *message;
51
52   if ((message = dbus_message_new_signal ("/org/freedesktop/atspi/tree",
53                                           SPI_DBUS_INTERFACE_TREE,
54                                           "removeAccessible"))) {
55     DBusMessageIter iter;
56     gchar *path;
57
58     dbus_message_iter_init_append (message, &iter);
59
60     path = atk_dbus_ref_to_path (ref);
61     dbus_message_iter_append_basic (&iter, DBUS_TYPE_STRING, &path);
62
63     dbus_connection_send(bus, message, NULL);
64
65     dbus_message_unref (message);
66   }
67 }
68
69 void
70 spi_emit_cache_update (AtkObject *accessible, DBusConnection *bus)
71 {
72   DBusMessage *message;
73
74   if ((message = dbus_message_new_signal ("/org/freedesktop/atspi/tree",
75                                           SPI_DBUS_INTERFACE_TREE,
76                                           "updateAccessible"))) {
77     DBusMessageIter iter;
78
79     dbus_message_iter_init_append (message, &iter);
80     spi_atk_append_accessible (accessible, &iter);
81
82     dbus_connection_send(bus, message, NULL);
83
84     dbus_message_unref (message);
85   }
86 }
87
88
89 /*---------------------------------------------------------------------------*/
90
91 static DBusMessage *
92 impl_getRoot (DBusConnection *bus, DBusMessage *message, void *user_data)
93 {
94   AtkObject *root = atk_get_root();
95   char *path;
96   DBusMessage *reply;
97   gchar       *errmsg;
98
99   if (!root)
100     {
101       reply = dbus_message_new_error (message,
102                                       DBUS_ERROR_FAILED,
103                                       "No root accessible available");
104     }
105   path = atk_dbus_object_to_path (root);
106   if (!path)
107     {
108       reply = dbus_message_new_error (message,
109                                       DBUS_ERROR_FAILED,
110                                       "No root accessible available");
111     }
112   reply = dbus_message_new_method_return (message);
113   dbus_message_append_args (reply, DBUS_TYPE_OBJECT_PATH, &path, DBUS_TYPE_INVALID);
114   g_free (path);
115   return reply;
116 }
117
118 /*---------------------------------------------------------------------------*/
119
120 static DBusMessage *
121 impl_getTree (DBusConnection *bus, DBusMessage *message, void *user_data)
122 {
123   DBusMessage *reply;
124   DBusMessageIter iter, iter_array;
125
126   reply = dbus_message_new_method_return (message);
127
128   dbus_message_iter_init_append (reply, &iter);
129   dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ooaoassusau)", &iter_array);
130   atk_dbus_foreach_registered(append_accessible_hf, &iter_array);
131   dbus_message_iter_close_container(&iter, &iter_array);
132   return reply;
133 }
134
135 /*---------------------------------------------------------------------------*/
136
137 static DRouteMethod methods[] = {
138   {impl_getRoot, "getRoot"},
139   {impl_getTree, "getTree"},
140   {NULL, NULL}
141 };
142
143 void
144 spi_initialize_tree (DRoutePath *path)
145 {
146   droute_path_add_interface (path,
147                              SPI_DBUS_INTERFACE_TREE,
148                              methods,
149                              NULL);
150 };
151
152 /*END------------------------------------------------------------------------*/