1 /* GAIL - The GNOME Accessibility Implementation Library
2 * Copyright 2002, 2003 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 "gailsubmenuitem.h"
25 static void gail_sub_menu_item_class_init (GailSubMenuItemClass *klass);
26 static void gail_sub_menu_item_init (GailSubMenuItem *item);
27 static void gail_sub_menu_item_real_initialize (AtkObject *obj,
30 static void atk_selection_interface_init (AtkSelectionIface *iface);
31 static gboolean gail_sub_menu_item_add_selection (AtkSelection *selection,
33 static gboolean gail_sub_menu_item_clear_selection (AtkSelection *selection);
34 static AtkObject* gail_sub_menu_item_ref_selection (AtkSelection *selection,
36 static gint gail_sub_menu_item_get_selection_count
37 (AtkSelection *selection);
38 static gboolean gail_sub_menu_item_is_child_selected
39 (AtkSelection *selection,
41 static gboolean gail_sub_menu_item_remove_selection (AtkSelection *selection,
43 static gint menu_item_add_gtk (GtkContainer *container,
45 static gint menu_item_remove_gtk (GtkContainer *container,
48 G_DEFINE_TYPE_WITH_CODE (GailSubMenuItem, gail_sub_menu_item, GAIL_TYPE_MENU_ITEM,
49 G_IMPLEMENT_INTERFACE (ATK_TYPE_SELECTION, atk_selection_interface_init))
52 gail_sub_menu_item_class_init (GailSubMenuItemClass *klass)
54 AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
56 class->initialize = gail_sub_menu_item_real_initialize;
60 gail_sub_menu_item_init (GailSubMenuItem *item)
65 gail_sub_menu_item_real_initialize (AtkObject *obj,
70 ATK_OBJECT_CLASS (gail_sub_menu_item_parent_class)->initialize (obj, data);
72 submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (data));
73 g_return_if_fail (submenu);
75 g_signal_connect (submenu,
77 G_CALLBACK (menu_item_add_gtk),
79 g_signal_connect (submenu,
81 G_CALLBACK (menu_item_remove_gtk),
84 obj->role = ATK_ROLE_MENU;
88 gail_sub_menu_item_new (GtkWidget *widget)
91 AtkObject *accessible;
93 g_return_val_if_fail (GTK_IS_MENU_ITEM (widget), NULL);
95 object = g_object_new (GAIL_TYPE_SUB_MENU_ITEM, NULL);
97 accessible = ATK_OBJECT (object);
98 atk_object_initialize (accessible, widget);
104 atk_selection_interface_init (AtkSelectionIface *iface)
106 iface->add_selection = gail_sub_menu_item_add_selection;
107 iface->clear_selection = gail_sub_menu_item_clear_selection;
108 iface->ref_selection = gail_sub_menu_item_ref_selection;
109 iface->get_selection_count = gail_sub_menu_item_get_selection_count;
110 iface->is_child_selected = gail_sub_menu_item_is_child_selected;
111 iface->remove_selection = gail_sub_menu_item_remove_selection;
113 * select_all_selection does not make sense for a submenu of a menu item
114 * so no implementation is provided.
119 gail_sub_menu_item_add_selection (AtkSelection *selection,
128 widget = GTK_ACCESSIBLE (selection)->widget;
130 /* State is defunct */
133 submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
134 g_return_val_if_fail (GTK_IS_MENU_SHELL (submenu), FALSE);
135 shell = GTK_MENU_SHELL (submenu);
136 length = g_list_length (shell->children);
137 if (i < 0 || i > length)
140 item = g_list_nth (shell->children, i);
141 g_return_val_if_fail (item != NULL, FALSE);
142 g_return_val_if_fail (GTK_IS_MENU_ITEM(item->data), FALSE);
144 gtk_menu_shell_select_item (shell, GTK_WIDGET (item->data));
149 gail_sub_menu_item_clear_selection (AtkSelection *selection)
155 widget = GTK_ACCESSIBLE (selection)->widget;
157 /* State is defunct */
160 submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
161 g_return_val_if_fail (GTK_IS_MENU_SHELL (submenu), FALSE);
162 shell = GTK_MENU_SHELL (submenu);
164 gtk_menu_shell_deselect (shell);
169 gail_sub_menu_item_ref_selection (AtkSelection *selection,
180 widget = GTK_ACCESSIBLE (selection)->widget;
182 /* State is defunct */
185 submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
186 g_return_val_if_fail (GTK_IS_MENU_SHELL (submenu), NULL);
187 shell = GTK_MENU_SHELL (submenu);
189 if (shell->active_menu_item != NULL)
191 obj = gtk_widget_get_accessible (shell->active_menu_item);
202 gail_sub_menu_item_get_selection_count (AtkSelection *selection)
208 widget = GTK_ACCESSIBLE (selection)->widget;
210 /* State is defunct */
213 submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
214 g_return_val_if_fail (GTK_IS_MENU_SHELL (submenu), FALSE);
215 shell = GTK_MENU_SHELL (submenu);
218 * Identifies the currently selected menu item
220 if (shell->active_menu_item == NULL)
227 gail_sub_menu_item_is_child_selected (AtkSelection *selection,
235 widget = GTK_ACCESSIBLE (selection)->widget;
237 /* State is defunct */
240 submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
241 g_return_val_if_fail (GTK_IS_MENU_SHELL (submenu), FALSE);
242 shell = GTK_MENU_SHELL (submenu);
244 if (shell->active_menu_item == NULL)
247 j = g_list_index (shell->children, shell->active_menu_item);
253 gail_sub_menu_item_remove_selection (AtkSelection *selection,
263 widget = GTK_ACCESSIBLE (selection)->widget;
265 /* State is defunct */
268 submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
269 g_return_val_if_fail (GTK_IS_MENU_SHELL (submenu), FALSE);
270 shell = GTK_MENU_SHELL (submenu);
272 if (shell->active_menu_item &&
273 GTK_MENU_ITEM (shell->active_menu_item)->submenu)
276 * Menu item contains a menu and it is the selected menu item
279 gtk_menu_shell_deselect (shell);
285 menu_item_add_gtk (GtkContainer *container,
288 GtkWidget *parent_widget;
289 AtkObject *atk_parent;
290 AtkObject *atk_child;
291 GailContainer *gail_container;
294 g_return_val_if_fail (GTK_IS_MENU (container), 1);
296 parent_widget = gtk_menu_get_attach_widget (GTK_MENU (container));
297 if (GTK_IS_MENU_ITEM (parent_widget))
299 atk_parent = gtk_widget_get_accessible (parent_widget);
300 atk_child = gtk_widget_get_accessible (widget);
302 gail_container = GAIL_CONTAINER (atk_parent);
303 g_object_notify (G_OBJECT (atk_child), "accessible_parent");
305 g_list_free (gail_container->children);
306 gail_container->children = gtk_container_get_children (container);
307 index = g_list_index (gail_container->children, widget);
308 g_signal_emit_by_name (atk_parent, "children_changed::add",
309 index, atk_child, NULL);
315 menu_item_remove_gtk (GtkContainer *container,
318 GtkWidget *parent_widget;
319 AtkObject *atk_parent;
320 AtkObject *atk_child;
321 GailContainer *gail_container;
322 AtkPropertyValues values = { NULL };
326 g_return_val_if_fail (GTK_IS_MENU (container), 1);
328 parent_widget = gtk_menu_get_attach_widget (GTK_MENU (container));
329 if (GTK_IS_MENU_ITEM (parent_widget))
331 atk_parent = gtk_widget_get_accessible (parent_widget);
332 atk_child = gtk_widget_get_accessible (widget);
334 gail_container = GAIL_CONTAINER (atk_parent);
335 g_value_init (&values.old_value, G_TYPE_POINTER);
336 g_value_set_pointer (&values.old_value, atk_parent);
337 values.property_name = "accessible-parent";
338 g_signal_emit_by_name (atk_child,
339 "property_change::accessible-parent", &values, NULL);
341 index = g_list_index (gail_container->children, widget);
342 list_length = g_list_length (gail_container->children);
343 g_list_free (gail_container->children);
344 gail_container->children = gtk_container_get_children (container);
345 if (index >= 0 && index <= list_length)
346 g_signal_emit_by_name (atk_parent, "children_changed::remove",
347 index, atk_child, NULL);