1 /* GAIL - The GNOME Accessibility Implementation Library
2 * Copyright 2001 Sun Microsystems Inc.
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.
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.
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.
23 #include "gtkcontainercellaccessible.h"
24 #include "gtkcellaccessible.h"
25 #include "gtkcellaccessibleparent.h"
27 typedef struct _ActionInfo ActionInfo;
32 void (*do_action_func) (GtkCellAccessible *cell);
36 static void atk_action_interface_init (AtkActionIface *iface);
37 static void atk_component_interface_init (AtkComponentIface *iface);
39 G_DEFINE_TYPE_WITH_CODE (GtkCellAccessible, _gtk_cell_accessible, ATK_TYPE_OBJECT,
40 G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init)
41 G_IMPLEMENT_INTERFACE (ATK_TYPE_COMPONENT, atk_component_interface_init))
44 destroy_action_info (gpointer action_info)
46 ActionInfo *info = (ActionInfo *)action_info;
49 g_free (info->description);
50 g_free (info->keybinding);
55 gtk_cell_accessible_object_finalize (GObject *obj)
57 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (obj);
58 AtkRelationSet *relation_set;
59 AtkRelation *relation;
61 gpointer target_object;
65 g_object_unref (cell->state_set);
67 if (cell->action_list)
68 g_list_free_full (cell->action_list, destroy_action_info);
70 relation_set = atk_object_ref_relation_set (ATK_OBJECT (obj));
71 if (ATK_IS_RELATION_SET (relation_set))
73 relation = atk_relation_set_get_relation_by_type (relation_set,
74 ATK_RELATION_NODE_CHILD_OF);
77 target = atk_relation_get_target (relation);
78 for (i = 0; i < target->len; i++)
80 target_object = g_ptr_array_index (target, i);
81 if (GTK_IS_CELL_ACCESSIBLE (target_object))
82 g_object_unref (target_object);
85 g_object_unref (relation_set);
87 G_OBJECT_CLASS (_gtk_cell_accessible_parent_class)->finalize (obj);
91 gtk_cell_accessible_get_index_in_parent (AtkObject *obj)
93 GtkCellAccessible *cell;
96 cell = GTK_CELL_ACCESSIBLE (obj);
98 parent = atk_object_get_parent (obj);
99 if (GTK_IS_CONTAINER_CELL_ACCESSIBLE (parent))
100 return g_list_index (GTK_CONTAINER_CELL_ACCESSIBLE (parent)->children, obj);
102 parent = gtk_widget_get_accessible (cell->widget);
106 return _gtk_cell_accessible_parent_get_child_index (GTK_CELL_ACCESSIBLE_PARENT (parent), cell);
110 gtk_cell_accessible_ref_state_set (AtkObject *obj)
112 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (obj);
114 g_object_ref (cell->state_set);
116 return cell->state_set;
120 _gtk_cell_accessible_class_init (GtkCellAccessibleClass *klass)
122 AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
123 GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
125 g_object_class->finalize = gtk_cell_accessible_object_finalize;
127 class->get_index_in_parent = gtk_cell_accessible_get_index_in_parent;
128 class->ref_state_set = gtk_cell_accessible_ref_state_set;
132 _gtk_cell_accessible_init (GtkCellAccessible *cell)
135 cell->action_list = NULL;
136 cell->state_set = atk_state_set_new ();
137 atk_state_set_add_state (cell->state_set, ATK_STATE_TRANSIENT);
138 atk_state_set_add_state (cell->state_set, ATK_STATE_ENABLED);
139 atk_state_set_add_state (cell->state_set, ATK_STATE_SENSITIVE);
140 atk_state_set_add_state (cell->state_set, ATK_STATE_SELECTABLE);
144 widget_destroyed (GtkWidget *widget,
145 GtkCellAccessible *cell)
151 _gtk_cell_accessible_initialise (GtkCellAccessible *cell,
155 cell->widget = widget;
156 atk_object_set_parent (ATK_OBJECT (cell), parent);
158 g_signal_connect_object (G_OBJECT (widget), "destroy",
159 G_CALLBACK (widget_destroyed), cell, 0);
163 _gtk_cell_accessible_add_state (GtkCellAccessible *cell,
164 AtkStateType state_type,
165 gboolean emit_signal)
170 if (atk_state_set_contains_state (cell->state_set, state_type))
173 rc = atk_state_set_add_state (cell->state_set, state_type);
175 /* The signal should only be generated if the value changed,
176 * not when the cell is set up. So states that are set
177 * initially should pass FALSE as the emit_signal argument.
181 atk_object_notify_state_change (ATK_OBJECT (cell), state_type, TRUE);
182 /* If state_type is ATK_STATE_VISIBLE, additional notification */
183 if (state_type == ATK_STATE_VISIBLE)
184 g_signal_emit_by_name (cell, "visible-data-changed");
187 /* If the parent is a flyweight container cell, propagate the state
190 parent = atk_object_get_parent (ATK_OBJECT (cell));
191 if (GTK_IS_CONTAINER_CELL_ACCESSIBLE (parent))
192 _gtk_cell_accessible_add_state (GTK_CELL_ACCESSIBLE (parent), state_type, emit_signal);
198 _gtk_cell_accessible_remove_state (GtkCellAccessible *cell,
199 AtkStateType state_type,
200 gboolean emit_signal)
205 if (!atk_state_set_contains_state (cell->state_set, state_type))
208 parent = atk_object_get_parent (ATK_OBJECT (cell));
210 rc = atk_state_set_remove_state (cell->state_set, state_type);
212 /* The signal should only be generated if the value changed,
213 * not when the cell is set up. So states that are set
214 * initially should pass FALSE as the emit_signal argument.
218 atk_object_notify_state_change (ATK_OBJECT (cell), state_type, FALSE);
219 /* If state_type is ATK_STATE_VISIBLE, additional notification */
220 if (state_type == ATK_STATE_VISIBLE)
221 g_signal_emit_by_name (cell, "visible-data-changed");
224 /* If the parent is a flyweight container cell, propagate the state
227 if (GTK_IS_CONTAINER_CELL_ACCESSIBLE (parent))
228 _gtk_cell_accessible_remove_state (GTK_CELL_ACCESSIBLE (parent), state_type, emit_signal);
234 _gtk_cell_accessible_add_action (GtkCellAccessible *cell,
236 const gchar *description,
237 const gchar *keybinding,
238 void (*func) (GtkCellAccessible *))
242 info = g_new (ActionInfo, 1);
243 info->name = g_strdup (name);
244 info->description = g_strdup (description);
245 info->keybinding = g_strdup (keybinding);
246 info->do_action_func = func;
248 cell->action_list = g_list_append (cell->action_list, info);
254 _gtk_cell_accessible_remove_action (GtkCellAccessible *cell,
259 l = g_list_nth (cell->action_list, index);
263 destroy_action_info (l->data);
264 cell->action_list = g_list_remove_link (cell->action_list, l);
271 _gtk_cell_accessible_remove_action_by_name (GtkCellAccessible *cell,
276 for (l = cell->action_list; l; l = l->next)
278 ActionInfo *info = l->data;
280 if (g_strcmp0 (info->name, name) == 0)
287 destroy_action_info (l->data);
288 cell->action_list = g_list_remove_link (cell->action_list, l);
294 get_action_info (GtkCellAccessible *cell,
299 l = g_list_nth (cell->action_list, index);
303 return (ActionInfo *) (l->data);
307 gtk_cell_accessible_action_get_n_actions (AtkAction *action)
309 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE(action);
310 if (cell->action_list != NULL)
311 return g_list_length (cell->action_list);
317 gtk_cell_accessible_action_get_name (AtkAction *action,
320 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (action);
323 info = get_action_info (cell, index);
331 gtk_cell_accessible_action_get_description (AtkAction *action,
334 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (action);
337 info = get_action_info (cell, index);
341 return info->description;
345 gtk_cell_accessible_action_get_keybinding (AtkAction *action,
348 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (action);
351 info = get_action_info (cell, index);
355 return info->keybinding;
359 gtk_cell_accessible_action_do_action (AtkAction *action,
362 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (action);
365 info = get_action_info (cell, index);
369 if (info->do_action_func == NULL)
372 info->do_action_func (cell);
378 atk_action_interface_init (AtkActionIface *iface)
380 iface->get_n_actions = gtk_cell_accessible_action_get_n_actions;
381 iface->do_action = gtk_cell_accessible_action_do_action;
382 iface->get_name = gtk_cell_accessible_action_get_name;
383 iface->get_description = gtk_cell_accessible_action_get_description;
384 iface->get_keybinding = gtk_cell_accessible_action_get_keybinding;
388 gtk_cell_accessible_get_extents (AtkComponent *component,
393 AtkCoordType coord_type)
395 GtkCellAccessible *cell;
398 cell = GTK_CELL_ACCESSIBLE (component);
399 parent = gtk_widget_get_accessible (cell->widget);
401 _gtk_cell_accessible_parent_get_cell_extents (GTK_CELL_ACCESSIBLE_PARENT (parent),
403 x, y, width, height, coord_type);
407 gtk_cell_accessible_grab_focus (AtkComponent *component)
409 GtkCellAccessible *cell;
412 cell = GTK_CELL_ACCESSIBLE (component);
413 parent = gtk_widget_get_accessible (cell->widget);
415 return _gtk_cell_accessible_parent_grab_focus (GTK_CELL_ACCESSIBLE_PARENT (parent), cell);
419 atk_component_interface_init (AtkComponentIface *iface)
421 iface->get_extents = gtk_cell_accessible_get_extents;
422 iface->grab_focus = gtk_cell_accessible_grab_focus;