1 /* GTK+ - accessibility implementations
2 * Copyright 2001, 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, see <http://www.gnu.org/licenses/>.
24 #include <gtk/gtkeventbox.h>
25 #include <gtk/gtkscrolledwindow.h>
26 #include <gtk/gtkframe.h>
27 #include <gtk/gtkmenu.h>
28 #include <gtk/gtkmenuitem.h>
29 #include <gtk/gtkbutton.h>
31 #include "gtktoplevelaccessible.h"
33 struct _GtkToplevelAccessiblePrivate
38 G_DEFINE_TYPE (GtkToplevelAccessible, gtk_toplevel_accessible, ATK_TYPE_OBJECT)
41 gtk_toplevel_accessible_initialize (AtkObject *accessible,
44 ATK_OBJECT_CLASS (gtk_toplevel_accessible_parent_class)->initialize (accessible, data);
46 accessible->role = ATK_ROLE_APPLICATION;
47 accessible->accessible_parent = NULL;
51 gtk_toplevel_accessible_object_finalize (GObject *obj)
53 GtkToplevelAccessible *toplevel = GTK_TOPLEVEL_ACCESSIBLE (obj);
55 if (toplevel->priv->window_list)
56 g_list_free (toplevel->priv->window_list);
58 G_OBJECT_CLASS (gtk_toplevel_accessible_parent_class)->finalize (obj);
62 gtk_toplevel_accessible_get_n_children (AtkObject *obj)
64 GtkToplevelAccessible *toplevel = GTK_TOPLEVEL_ACCESSIBLE (obj);
66 return g_list_length (toplevel->priv->window_list);
70 gtk_toplevel_accessible_ref_child (AtkObject *obj,
73 GtkToplevelAccessible *toplevel;
77 toplevel = GTK_TOPLEVEL_ACCESSIBLE (obj);
78 widget = g_list_nth_data (toplevel->priv->window_list, i);
82 atk_obj = gtk_widget_get_accessible (widget);
84 g_object_ref (atk_obj);
90 gtk_toplevel_accessible_get_name (AtkObject *obj)
92 return g_get_prgname ();
96 is_combo_window (GtkWidget *widget)
101 child = gtk_bin_get_child (GTK_BIN (widget));
103 if (!GTK_IS_EVENT_BOX (child))
106 child = gtk_bin_get_child (GTK_BIN (child));
108 if (!GTK_IS_FRAME (child))
111 child = gtk_bin_get_child (GTK_BIN (child));
113 if (!GTK_IS_SCROLLED_WINDOW (child))
116 obj = gtk_widget_get_accessible (child);
117 obj = atk_object_get_parent (obj);
123 is_attached_menu_window (GtkWidget *widget)
127 child = gtk_bin_get_child (GTK_BIN (widget));
128 if (GTK_IS_MENU (child))
132 attach = gtk_menu_get_attach_widget (GTK_MENU (child));
133 /* Allow for menu belonging to the Panel Menu, which is a GtkButton */
134 if (GTK_IS_MENU_ITEM (attach) || GTK_IS_BUTTON (attach))
142 gtk_toplevel_accessible_class_init (GtkToplevelAccessibleClass *klass)
144 AtkObjectClass *class = ATK_OBJECT_CLASS(klass);
145 GObjectClass *g_object_class = G_OBJECT_CLASS(klass);
147 class->initialize = gtk_toplevel_accessible_initialize;
148 class->get_n_children = gtk_toplevel_accessible_get_n_children;
149 class->ref_child = gtk_toplevel_accessible_ref_child;
150 class->get_parent = NULL;
151 class->get_name = gtk_toplevel_accessible_get_name;
153 g_object_class->finalize = gtk_toplevel_accessible_object_finalize;
155 g_type_class_add_private (klass, sizeof (GtkToplevelAccessiblePrivate));
159 remove_child (GtkToplevelAccessible *toplevel,
162 AtkObject *atk_obj = ATK_OBJECT (toplevel);
164 guint window_count = 0;
167 if (toplevel->priv->window_list)
169 GtkWindow *tmp_window;
171 for (l = toplevel->priv->window_list; l; l = l->next)
173 tmp_window = GTK_WINDOW (l->data);
175 if (window == tmp_window)
177 /* Remove the window from the window_list & emit the signal */
178 toplevel->priv->window_list = g_list_delete_link (toplevel->priv->window_list, l);
179 child = gtk_widget_get_accessible (GTK_WIDGET (window));
180 g_signal_emit_by_name (atk_obj, "children-changed::remove",
181 window_count, child, NULL);
182 atk_object_set_parent (child, NULL);
192 show_event_watcher (GSignalInvocationHint *ihint,
193 guint n_param_values,
194 const GValue *param_values,
197 GtkToplevelAccessible *toplevel = GTK_TOPLEVEL_ACCESSIBLE (data);
198 AtkObject *atk_obj = ATK_OBJECT (toplevel);
204 object = g_value_get_object (param_values + 0);
206 if (!GTK_IS_WINDOW (object))
209 widget = GTK_WIDGET (object);
210 if (gtk_widget_get_parent (widget) ||
211 is_attached_menu_window (widget) ||
212 #ifdef GDK_WINDOWING_X11
213 GTK_IS_PLUG (widget) ||
215 is_combo_window (widget))
218 child = gtk_widget_get_accessible (widget);
219 if (atk_object_get_role (child) == ATK_ROLE_REDUNDANT_OBJECT ||
220 atk_object_get_role (child) == ATK_ROLE_TOOL_TIP)
223 /* Add the window to the list & emit the signal */
224 toplevel->priv->window_list = g_list_append (toplevel->priv->window_list, widget);
225 n_children = g_list_length (toplevel->priv->window_list);
227 atk_object_set_parent (child, atk_obj);
228 g_signal_emit_by_name (atk_obj, "children-changed::add",
229 n_children - 1, child, NULL);
231 g_signal_connect_swapped (G_OBJECT(object), "destroy",
232 G_CALLBACK (remove_child), toplevel);
238 hide_event_watcher (GSignalInvocationHint *ihint,
239 guint n_param_values,
240 const GValue *param_values,
243 GtkToplevelAccessible *toplevel = GTK_TOPLEVEL_ACCESSIBLE (data);
246 object = g_value_get_object (param_values + 0);
248 if (!GTK_IS_WINDOW (object))
251 remove_child (toplevel, GTK_WINDOW (object));
256 gtk_toplevel_accessible_init (GtkToplevelAccessible *toplevel)
263 toplevel->priv = G_TYPE_INSTANCE_GET_PRIVATE (toplevel,
264 GTK_TYPE_TOPLEVEL_ACCESSIBLE,
265 GtkToplevelAccessiblePrivate);
267 l = toplevel->priv->window_list = gtk_window_list_toplevels ();
271 window = GTK_WINDOW (l->data);
272 widget = GTK_WIDGET (window);
274 !gtk_widget_get_visible (widget) ||
275 is_attached_menu_window (widget) ||
276 #ifdef GDK_WINDOWING_X11
277 GTK_IS_PLUG (window) ||
279 gtk_widget_get_parent (GTK_WIDGET (window)))
281 GList *temp_l = l->next;
283 toplevel->priv->window_list = g_list_delete_link (toplevel->priv->window_list, l);
288 g_signal_connect_swapped (G_OBJECT (window), "destroy",
289 G_CALLBACK (remove_child), toplevel);
294 g_type_class_ref (GTK_TYPE_WINDOW);
296 signal_id = g_signal_lookup ("show", GTK_TYPE_WINDOW);
297 g_signal_add_emission_hook (signal_id, 0,
298 show_event_watcher, toplevel, (GDestroyNotify) NULL);
300 signal_id = g_signal_lookup ("hide", GTK_TYPE_WINDOW);
301 g_signal_add_emission_hook (signal_id, 0,
302 hide_event_watcher, toplevel, (GDestroyNotify) NULL);
306 gtk_toplevel_accessible_get_children (GtkToplevelAccessible *accessible)
308 return accessible->priv->window_list;