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;
97 cell = GTK_CELL_ACCESSIBLE (obj);
98 parent = gtk_widget_get_accessible (cell->widget);
102 index = _gtk_cell_accessible_parent_get_child_index (GTK_CELL_ACCESSIBLE_PARENT (parent), cell);
106 if (atk_state_set_contains_state (cell->state_set, ATK_STATE_STALE) &&
107 cell->refresh_index != NULL)
109 cell->refresh_index (cell);
110 atk_state_set_remove_state (cell->state_set, ATK_STATE_STALE);
117 gtk_cell_accessible_ref_state_set (AtkObject *obj)
119 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (obj);
121 g_object_ref (cell->state_set);
123 return cell->state_set;
127 _gtk_cell_accessible_class_init (GtkCellAccessibleClass *klass)
129 AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
130 GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
132 g_object_class->finalize = gtk_cell_accessible_object_finalize;
134 class->get_index_in_parent = gtk_cell_accessible_get_index_in_parent;
135 class->ref_state_set = gtk_cell_accessible_ref_state_set;
139 _gtk_cell_accessible_init (GtkCellAccessible *cell)
142 cell->action_list = NULL;
144 cell->refresh_index = NULL;
145 cell->state_set = atk_state_set_new ();
146 atk_state_set_add_state (cell->state_set, ATK_STATE_TRANSIENT);
147 atk_state_set_add_state (cell->state_set, ATK_STATE_ENABLED);
148 atk_state_set_add_state (cell->state_set, ATK_STATE_SENSITIVE);
149 atk_state_set_add_state (cell->state_set, ATK_STATE_SELECTABLE);
153 widget_destroyed (GtkWidget *widget,
154 GtkCellAccessible *cell)
160 _gtk_cell_accessible_initialise (GtkCellAccessible *cell,
165 cell->widget = widget;
166 atk_object_set_parent (ATK_OBJECT (cell), parent);
169 g_signal_connect_object (G_OBJECT (widget), "destroy",
170 G_CALLBACK (widget_destroyed), cell, 0);
174 _gtk_cell_accessible_add_state (GtkCellAccessible *cell,
175 AtkStateType state_type,
176 gboolean emit_signal)
181 if (atk_state_set_contains_state (cell->state_set, state_type))
184 rc = atk_state_set_add_state (cell->state_set, state_type);
186 /* The signal should only be generated if the value changed,
187 * not when the cell is set up. So states that are set
188 * initially should pass FALSE as the emit_signal argument.
192 atk_object_notify_state_change (ATK_OBJECT (cell), state_type, TRUE);
193 /* If state_type is ATK_STATE_VISIBLE, additional notification */
194 if (state_type == ATK_STATE_VISIBLE)
195 g_signal_emit_by_name (cell, "visible-data-changed");
198 /* If the parent is a flyweight container cell, propagate the state
201 parent = atk_object_get_parent (ATK_OBJECT (cell));
202 if (GTK_IS_CONTAINER_CELL_ACCESSIBLE (parent))
203 _gtk_cell_accessible_add_state (GTK_CELL_ACCESSIBLE (parent), state_type, emit_signal);
209 _gtk_cell_accessible_remove_state (GtkCellAccessible *cell,
210 AtkStateType state_type,
211 gboolean emit_signal)
216 if (!atk_state_set_contains_state (cell->state_set, state_type))
219 parent = atk_object_get_parent (ATK_OBJECT (cell));
221 rc = atk_state_set_remove_state (cell->state_set, state_type);
223 /* The signal should only be generated if the value changed,
224 * not when the cell is set up. So states that are set
225 * initially should pass FALSE as the emit_signal argument.
229 atk_object_notify_state_change (ATK_OBJECT (cell), state_type, FALSE);
230 /* If state_type is ATK_STATE_VISIBLE, additional notification */
231 if (state_type == ATK_STATE_VISIBLE)
232 g_signal_emit_by_name (cell, "visible-data-changed");
235 /* If the parent is a flyweight container cell, propagate the state
238 if (GTK_IS_CONTAINER_CELL_ACCESSIBLE (parent))
239 _gtk_cell_accessible_remove_state (GTK_CELL_ACCESSIBLE (parent), state_type, emit_signal);
245 _gtk_cell_accessible_add_action (GtkCellAccessible *cell,
247 const gchar *description,
248 const gchar *keybinding,
249 void (*func) (GtkCellAccessible *))
253 info = g_new (ActionInfo, 1);
254 info->name = g_strdup (name);
255 info->description = g_strdup (description);
256 info->keybinding = g_strdup (keybinding);
257 info->do_action_func = func;
259 cell->action_list = g_list_append (cell->action_list, info);
265 _gtk_cell_accessible_remove_action (GtkCellAccessible *cell,
270 l = g_list_nth (cell->action_list, index);
274 destroy_action_info (l->data);
275 cell->action_list = g_list_remove_link (cell->action_list, l);
282 _gtk_cell_accessible_remove_action_by_name (GtkCellAccessible *cell,
287 for (l = cell->action_list; l; l = l->next)
289 ActionInfo *info = l->data;
291 if (g_strcmp0 (info->name, name) == 0)
298 destroy_action_info (l->data);
299 cell->action_list = g_list_remove_link (cell->action_list, l);
305 get_action_info (GtkCellAccessible *cell,
310 l = g_list_nth (cell->action_list, index);
314 return (ActionInfo *) (l->data);
318 gtk_cell_accessible_action_get_n_actions (AtkAction *action)
320 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE(action);
321 if (cell->action_list != NULL)
322 return g_list_length (cell->action_list);
328 gtk_cell_accessible_action_get_name (AtkAction *action,
331 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (action);
334 info = get_action_info (cell, index);
342 gtk_cell_accessible_action_get_description (AtkAction *action,
345 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (action);
348 info = get_action_info (cell, index);
352 return info->description;
356 gtk_cell_accessible_action_get_keybinding (AtkAction *action,
359 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (action);
362 info = get_action_info (cell, index);
366 return info->keybinding;
370 gtk_cell_accessible_action_do_action (AtkAction *action,
373 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (action);
376 info = get_action_info (cell, index);
380 if (info->do_action_func == NULL)
383 info->do_action_func (cell);
389 atk_action_interface_init (AtkActionIface *iface)
391 iface->get_n_actions = gtk_cell_accessible_action_get_n_actions;
392 iface->do_action = gtk_cell_accessible_action_do_action;
393 iface->get_name = gtk_cell_accessible_action_get_name;
394 iface->get_description = gtk_cell_accessible_action_get_description;
395 iface->get_keybinding = gtk_cell_accessible_action_get_keybinding;
399 gtk_cell_accessible_get_extents (AtkComponent *component,
404 AtkCoordType coord_type)
406 GtkCellAccessible *cell;
409 cell = GTK_CELL_ACCESSIBLE (component);
410 parent = gtk_widget_get_accessible (cell->widget);
412 _gtk_cell_accessible_parent_get_cell_extents (GTK_CELL_ACCESSIBLE_PARENT (parent),
414 x, y, width, height, coord_type);
418 gtk_cell_accessible_grab_focus (AtkComponent *component)
420 GtkCellAccessible *cell;
423 cell = GTK_CELL_ACCESSIBLE (component);
424 parent = gtk_widget_get_accessible (cell->widget);
426 return _gtk_cell_accessible_parent_grab_focus (GTK_CELL_ACCESSIBLE_PARENT (parent), cell);
430 atk_component_interface_init (AtkComponentIface *iface)
432 iface->get_extents = gtk_cell_accessible_get_extents;
433 iface->grab_focus = gtk_cell_accessible_grab_focus;