1 /* GTK+ - accessibility implementations
2 * Copyright 2001 Sun Microsystems 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, see <http://www.gnu.org/licenses/>.
16 */
17
18 #include "config.h"
19
20 #include <gtk/gtk.h>
21 #include <glib/gi18n-lib.h>
22 #include "gtkbooleancellaccessible.h"
23
24 struct _GtkBooleanCellAccessiblePrivate
25 {
26 gboolean cell_value;
27 gboolean cell_sensitive;
28 };
29
30 static AtkActionIface *parent_action_iface;
31
32 static gint
gtk_boolean_cell_accessible_get_n_actions(AtkAction * action)33 gtk_boolean_cell_accessible_get_n_actions (AtkAction *action)
34 {
35 return parent_action_iface->get_n_actions (action) + 1;
36 }
37
38 static const gchar *
gtk_boolean_cell_accessible_get_description(AtkAction * action,gint i)39 gtk_boolean_cell_accessible_get_description (AtkAction *action,
40 gint i)
41 {
42 if (i == 0)
43 return C_("Action description", "Toggles the cell");
44
45 return parent_action_iface->get_description (action, i - 1);
46 }
47
48 static const gchar *
gtk_boolean_cell_accessible_action_get_name(AtkAction * action,gint i)49 gtk_boolean_cell_accessible_action_get_name (AtkAction *action,
50 gint i)
51 {
52 if (i == 0)
53 return "toggle";
54
55 return parent_action_iface->get_description (action, i - 1);
56 }
57
58 static const gchar *
gtk_boolean_cell_accessible_action_get_localized_name(AtkAction * action,gint i)59 gtk_boolean_cell_accessible_action_get_localized_name (AtkAction *action,
60 gint i)
61 {
62 if (i == 0)
63 return C_("Action name", "Toggle");
64
65 return parent_action_iface->get_description (action, i - 1);
66 }
67
68 static gboolean
gtk_boolean_cell_accessible_do_action(AtkAction * action,gint i)69 gtk_boolean_cell_accessible_do_action (AtkAction *action,
70 gint i)
71 {
72 if (i == 0)
73 return parent_action_iface->do_action (action, 2);
74
75 return parent_action_iface->do_action (action, i - 1);
76 }
77
78 static void
gtk_boolean_cell_accessible_action_interface_init(AtkActionIface * iface)79 gtk_boolean_cell_accessible_action_interface_init (AtkActionIface *iface)
80 {
81 parent_action_iface = g_type_interface_peek_parent (iface);
82
83 iface->do_action = gtk_boolean_cell_accessible_do_action;
84 iface->get_n_actions = gtk_boolean_cell_accessible_get_n_actions;
85 iface->get_description = gtk_boolean_cell_accessible_get_description;
86 iface->get_name = gtk_boolean_cell_accessible_action_get_name;
87 iface->get_localized_name = gtk_boolean_cell_accessible_action_get_localized_name;
88 }
89
90
G_DEFINE_TYPE_WITH_CODE(GtkBooleanCellAccessible,gtk_boolean_cell_accessible,GTK_TYPE_RENDERER_CELL_ACCESSIBLE,G_ADD_PRIVATE (GtkBooleanCellAccessible)G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION,gtk_boolean_cell_accessible_action_interface_init))91 G_DEFINE_TYPE_WITH_CODE (GtkBooleanCellAccessible, gtk_boolean_cell_accessible, GTK_TYPE_RENDERER_CELL_ACCESSIBLE,
92 G_ADD_PRIVATE (GtkBooleanCellAccessible)
93 G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, gtk_boolean_cell_accessible_action_interface_init))
94
95
96 static AtkStateSet *
97 gtk_boolean_cell_accessible_ref_state_set (AtkObject *accessible)
98 {
99 GtkBooleanCellAccessible *cell = GTK_BOOLEAN_CELL_ACCESSIBLE (accessible);
100 AtkStateSet *state_set;
101
102 state_set = ATK_OBJECT_CLASS (gtk_boolean_cell_accessible_parent_class)->ref_state_set (accessible);
103
104 if (cell->priv->cell_value)
105 atk_state_set_add_state (state_set, ATK_STATE_CHECKED);
106
107 if (cell->priv->cell_sensitive)
108 atk_state_set_add_state (state_set, ATK_STATE_SENSITIVE);
109 else
110 atk_state_set_remove_state (state_set, ATK_STATE_SENSITIVE);
111
112 return state_set;
113 }
114
115 static void
gtk_boolean_cell_accessible_update_cache(GtkCellAccessible * cell,gboolean emit_signal)116 gtk_boolean_cell_accessible_update_cache (GtkCellAccessible *cell,
117 gboolean emit_signal)
118 {
119 GtkBooleanCellAccessible *boolean_cell = GTK_BOOLEAN_CELL_ACCESSIBLE (cell);
120 gboolean active;
121 gboolean sensitive;
122 GtkCellRenderer *renderer;
123
124 g_object_get (cell, "renderer", &renderer, NULL);
125 g_object_get (renderer,
126 "active", &active,
127 "sensitive", &sensitive,
128 NULL);
129 g_object_unref (renderer);
130
131 if (boolean_cell->priv->cell_value != active)
132 {
133 boolean_cell->priv->cell_value = !boolean_cell->priv->cell_value;
134
135 if (emit_signal)
136 atk_object_notify_state_change (ATK_OBJECT (cell), ATK_STATE_CHECKED, active);
137 }
138
139 if (boolean_cell->priv->cell_sensitive != sensitive)
140 {
141 boolean_cell->priv->cell_sensitive = !boolean_cell->priv->cell_sensitive;
142
143 if (emit_signal)
144 atk_object_notify_state_change (ATK_OBJECT (cell), ATK_STATE_SENSITIVE, sensitive);
145 }
146 }
147
148 static void
gtk_boolean_cell_accessible_class_init(GtkBooleanCellAccessibleClass * klass)149 gtk_boolean_cell_accessible_class_init (GtkBooleanCellAccessibleClass *klass)
150 {
151 GtkCellAccessibleClass *cell_class = GTK_CELL_ACCESSIBLE_CLASS (klass);
152 AtkObjectClass *atkobject_class = ATK_OBJECT_CLASS (klass);
153
154 atkobject_class->ref_state_set = gtk_boolean_cell_accessible_ref_state_set;
155
156 cell_class->update_cache = gtk_boolean_cell_accessible_update_cache;
157 }
158
159 static void
gtk_boolean_cell_accessible_init(GtkBooleanCellAccessible * cell)160 gtk_boolean_cell_accessible_init (GtkBooleanCellAccessible *cell)
161 {
162 cell->priv = gtk_boolean_cell_accessible_get_instance_private (cell);
163 }
164
165