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;
95 cell = GTK_CELL_ACCESSIBLE (obj);
96 if (atk_state_set_contains_state (cell->state_set, ATK_STATE_STALE) &&
97 cell->refresh_index != NULL)
99 cell->refresh_index (cell);
100 atk_state_set_remove_state (cell->state_set, ATK_STATE_STALE);
107 gtk_cell_accessible_ref_state_set (AtkObject *obj)
109 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (obj);
111 g_object_ref (cell->state_set);
113 return cell->state_set;
117 _gtk_cell_accessible_class_init (GtkCellAccessibleClass *klass)
119 AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
120 GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
122 g_object_class->finalize = gtk_cell_accessible_object_finalize;
124 class->get_index_in_parent = gtk_cell_accessible_get_index_in_parent;
125 class->ref_state_set = gtk_cell_accessible_ref_state_set;
129 _gtk_cell_accessible_init (GtkCellAccessible *cell)
132 cell->action_list = NULL;
134 cell->refresh_index = NULL;
135 cell->state_set = atk_state_set_new ();
136 atk_state_set_add_state (cell->state_set, ATK_STATE_TRANSIENT);
137 atk_state_set_add_state (cell->state_set, ATK_STATE_ENABLED);
138 atk_state_set_add_state (cell->state_set, ATK_STATE_SENSITIVE);
139 atk_state_set_add_state (cell->state_set, ATK_STATE_SELECTABLE);
143 widget_destroyed (GtkWidget *widget,
144 GtkCellAccessible *cell)
150 _gtk_cell_accessible_initialise (GtkCellAccessible *cell,
155 cell->widget = widget;
156 atk_object_set_parent (ATK_OBJECT (cell), parent);
159 g_signal_connect_object (G_OBJECT (widget), "destroy",
160 G_CALLBACK (widget_destroyed), cell, 0);
164 _gtk_cell_accessible_add_state (GtkCellAccessible *cell,
165 AtkStateType state_type,
166 gboolean emit_signal)
171 if (atk_state_set_contains_state (cell->state_set, state_type))
174 rc = atk_state_set_add_state (cell->state_set, state_type);
176 /* The signal should only be generated if the value changed,
177 * not when the cell is set up. So states that are set
178 * initially should pass FALSE as the emit_signal argument.
182 atk_object_notify_state_change (ATK_OBJECT (cell), state_type, TRUE);
183 /* If state_type is ATK_STATE_VISIBLE, additional notification */
184 if (state_type == ATK_STATE_VISIBLE)
185 g_signal_emit_by_name (cell, "visible-data-changed");
188 /* If the parent is a flyweight container cell, propagate the state
191 parent = atk_object_get_parent (ATK_OBJECT (cell));
192 if (GTK_IS_CONTAINER_CELL_ACCESSIBLE (parent))
193 _gtk_cell_accessible_add_state (GTK_CELL_ACCESSIBLE (parent), state_type, emit_signal);
199 _gtk_cell_accessible_remove_state (GtkCellAccessible *cell,
200 AtkStateType state_type,
201 gboolean emit_signal)
206 if (!atk_state_set_contains_state (cell->state_set, state_type))
209 parent = atk_object_get_parent (ATK_OBJECT (cell));
211 rc = atk_state_set_remove_state (cell->state_set, state_type);
213 /* The signal should only be generated if the value changed,
214 * not when the cell is set up. So states that are set
215 * initially should pass FALSE as the emit_signal argument.
219 atk_object_notify_state_change (ATK_OBJECT (cell), state_type, FALSE);
220 /* If state_type is ATK_STATE_VISIBLE, additional notification */
221 if (state_type == ATK_STATE_VISIBLE)
222 g_signal_emit_by_name (cell, "visible-data-changed");
225 /* If the parent is a flyweight container cell, propagate the state
228 if (GTK_IS_CONTAINER_CELL_ACCESSIBLE (parent))
229 _gtk_cell_accessible_remove_state (GTK_CELL_ACCESSIBLE (parent), state_type, emit_signal);
235 _gtk_cell_accessible_add_action (GtkCellAccessible *cell,
237 const gchar *description,
238 const gchar *keybinding,
239 void (*func) (GtkCellAccessible *))
243 info = g_new (ActionInfo, 1);
244 info->name = g_strdup (name);
245 info->description = g_strdup (description);
246 info->keybinding = g_strdup (keybinding);
247 info->do_action_func = func;
249 cell->action_list = g_list_append (cell->action_list, info);
255 _gtk_cell_accessible_remove_action (GtkCellAccessible *cell,
260 l = g_list_nth (cell->action_list, index);
264 destroy_action_info (l->data);
265 cell->action_list = g_list_remove_link (cell->action_list, l);
272 _gtk_cell_accessible_remove_action_by_name (GtkCellAccessible *cell,
277 for (l = cell->action_list; l; l = l->next)
279 ActionInfo *info = l->data;
281 if (g_strcmp0 (info->name, name) == 0)
288 destroy_action_info (l->data);
289 cell->action_list = g_list_remove_link (cell->action_list, l);
295 get_action_info (GtkCellAccessible *cell,
300 l = g_list_nth (cell->action_list, index);
304 return (ActionInfo *) (l->data);
308 gtk_cell_accessible_action_get_n_actions (AtkAction *action)
310 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE(action);
311 if (cell->action_list != NULL)
312 return g_list_length (cell->action_list);
318 gtk_cell_accessible_action_get_name (AtkAction *action,
321 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (action);
324 info = get_action_info (cell, index);
332 gtk_cell_accessible_action_get_description (AtkAction *action,
335 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (action);
338 info = get_action_info (cell, index);
342 return info->description;
346 gtk_cell_accessible_action_get_keybinding (AtkAction *action,
349 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (action);
352 info = get_action_info (cell, index);
356 return info->keybinding;
360 gtk_cell_accessible_action_do_action (AtkAction *action,
363 GtkCellAccessible *cell = GTK_CELL_ACCESSIBLE (action);
366 info = get_action_info (cell, index);
370 if (info->do_action_func == NULL)
373 info->do_action_func (cell);
379 atk_action_interface_init (AtkActionIface *iface)
381 iface->get_n_actions = gtk_cell_accessible_action_get_n_actions;
382 iface->do_action = gtk_cell_accessible_action_do_action;
383 iface->get_name = gtk_cell_accessible_action_get_name;
384 iface->get_description = gtk_cell_accessible_action_get_description;
385 iface->get_keybinding = gtk_cell_accessible_action_get_keybinding;
389 gtk_cell_accessible_get_extents (AtkComponent *component,
394 AtkCoordType coord_type)
396 GtkCellAccessible *cell;
399 cell = GTK_CELL_ACCESSIBLE (component);
400 parent = gtk_widget_get_accessible (cell->widget);
402 _gtk_cell_accessible_parent_get_cell_extents (GTK_CELL_ACCESSIBLE_PARENT (parent),
404 x, y, width, height, coord_type);
408 gtk_cell_accessible_grab_focus (AtkComponent *component)
410 GtkCellAccessible *cell;
413 cell = GTK_CELL_ACCESSIBLE (component);
414 parent = gtk_widget_get_accessible (cell->widget);
416 return _gtk_cell_accessible_parent_grab_focus (GTK_CELL_ACCESSIBLE_PARENT (parent), cell);
420 atk_component_interface_init (AtkComponentIface *iface)
422 iface->get_extents = gtk_cell_accessible_get_extents;
423 iface->grab_focus = gtk_cell_accessible_grab_focus;