2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001, 2002 Sun Microsystems Inc.,
6 * Copyright 2001, 2002 Ximian, Inc.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 * Boston, MA 02111-1307, USA.
24 /* relation.c : implements the Relation interface */
30 #include <droute/droute.h>
32 #include "common/spi-types.h"
33 #include "common/spi-dbus.h"
36 spi_init_relation_type_table (Accessibility_RelationType * types)
40 for (i = 0; i < ATK_RELATION_LAST_DEFINED; i++)
41 types[i] = Accessibility_RELATION_NULL;
43 types[ATK_RELATION_CONTROLLED_BY] = Accessibility_RELATION_CONTROLLED_BY;
44 types[ATK_RELATION_CONTROLLER_FOR] = Accessibility_RELATION_CONTROLLER_FOR;
45 types[ATK_RELATION_LABEL_FOR] = Accessibility_RELATION_LABEL_FOR;
46 types[ATK_RELATION_LABELLED_BY] = Accessibility_RELATION_LABELLED_BY;
47 types[ATK_RELATION_MEMBER_OF] = Accessibility_RELATION_MEMBER_OF;
48 types[ATK_RELATION_NODE_CHILD_OF] = Accessibility_RELATION_NODE_CHILD_OF;
49 types[ATK_RELATION_NODE_PARENT_OF] = Accessibility_RELATION_NODE_PARENT_OF;
50 types[ATK_RELATION_FLOWS_TO] = Accessibility_RELATION_FLOWS_TO;
51 types[ATK_RELATION_FLOWS_FROM] = Accessibility_RELATION_FLOWS_FROM;
52 types[ATK_RELATION_SUBWINDOW_OF] = Accessibility_RELATION_SUBWINDOW_OF;
53 types[ATK_RELATION_EMBEDS] = Accessibility_RELATION_EMBEDS;
54 types[ATK_RELATION_EMBEDDED_BY] = Accessibility_RELATION_EMBEDDED_BY;
55 types[ATK_RELATION_POPUP_FOR] = Accessibility_RELATION_POPUP_FOR;
56 types[ATK_RELATION_PARENT_WINDOW_OF] =
57 Accessibility_RELATION_PARENT_WINDOW_OF;
58 types[ATK_RELATION_DESCRIPTION_FOR] =
59 Accessibility_RELATION_DESCRIPTION_FOR;
60 types[ATK_RELATION_DESCRIBED_BY] = Accessibility_RELATION_DESCRIBED_BY;
67 static Accessibility_RelationType
68 spi_relation_type_from_atk_relation_type (AtkRelationType type)
70 static gboolean is_initialized = FALSE;
71 static Accessibility_RelationType
72 spi_relation_type_table[ATK_RELATION_LAST_DEFINED];
73 Accessibility_RelationType spi_type;
76 is_initialized = spi_init_relation_type_table (spi_relation_type_table);
78 if (type > ATK_RELATION_NULL && type < ATK_RELATION_LAST_DEFINED)
79 spi_type = spi_relation_type_table[type];
81 spi_type = Accessibility_RELATION_EXTENDED;
88 get_relation_from_servant (PortableServer_Servant servant)
90 SpiBase *base = SPI_BASE (bonobo_object_from_servant (servant));
92 g_return_val_if_fail (base, NULL);
93 return ATK_RELATION (base->gobj);
98 static Accessibility_RelationType
99 impl_getRelationType (PortableServer_Servant servant, CORBA_Environment * ev)
101 AtkRelation *relation = get_relation_from_servant (servant);
102 AtkRelationType type;
104 g_return_val_if_fail (relation != NULL, 0);
105 type = atk_relation_get_relation_type (relation);
106 return spi_relation_type_from_atk_relation_type (type);
111 impl_getNTargets (PortableServer_Servant servant, CORBA_Environment * ev)
113 AtkRelation *relation = get_relation_from_servant (servant);
114 g_return_val_if_fail (relation != NULL, 0);
116 return relation->target ? relation->target->len : 0;
121 impl_getTarget (PortableServer_Servant servant,
122 const CORBA_short index, CORBA_Environment * ev)
124 AtkObject *atk_object;
125 AtkRelation *relation = get_relation_from_servant (servant);
126 g_return_val_if_fail (relation, NULL);
128 if (!relation->target || index < 0 || index >= relation->target->len)
129 return CORBA_OBJECT_NIL;
131 atk_object = g_ptr_array_index (relation->target, index);
133 return CORBA_OBJECT_NIL;
135 return spi_accessible_new_return (atk_object, FALSE, ev);
140 spi_relation_new (AtkRelation * obj)
142 SpiRelation *new_relation = g_object_new (SPI_RELATION_TYPE, NULL);
143 spi_base_construct (SPI_BASE (new_relation), G_OBJECT (obj));
149 spi_relation_class_init (SpiRelationClass * klass)
151 POA_Accessibility_Relation__epv *epv = &klass->epv;
153 epv->getRelationType = impl_getRelationType;
154 epv->getNTargets = impl_getNTargets;
155 epv->getTarget = impl_getTarget;
160 spi_relation_init (SpiRelation * relation)
165 BONOBO_TYPE_FUNC_FULL (SpiRelation,
166 Accessibility_Relation, SPI_TYPE_BASE, spi_relation)