1 /* GAIL - The GNOME Accessibility Implementation Library
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/>.
22 #include "gtknotebookpageaccessible.h"
25 static void atk_component_interface_init (AtkComponentIface *iface);
27 G_DEFINE_TYPE_WITH_CODE (GtkNotebookPageAccessible, _gtk_notebook_page_accessible, ATK_TYPE_OBJECT,
28 G_IMPLEMENT_INTERFACE (ATK_TYPE_COMPONENT, atk_component_interface_init))
32 find_label_child (GtkContainer *container)
34 GList *children, *tmp_list;
37 children = gtk_container_get_children (container);
40 for (tmp_list = children; tmp_list != NULL; tmp_list = tmp_list->next)
42 if (GTK_IS_LABEL (tmp_list->data))
44 child = GTK_WIDGET (tmp_list->data);
47 else if (GTK_IS_CONTAINER (tmp_list->data))
49 child = find_label_child (GTK_CONTAINER (tmp_list->data));
54 g_list_free (children);
60 get_label_from_notebook_page (GtkNotebookPageAccessible *page)
63 GtkNotebook *notebook;
65 notebook = GTK_NOTEBOOK (gtk_accessible_get_widget (page->notebook));
69 if (!gtk_notebook_get_show_tabs (notebook))
72 child = gtk_notebook_get_tab_label (notebook, page->child);
74 if (GTK_IS_LABEL (child))
77 if (GTK_IS_CONTAINER (child))
78 child = find_label_child (GTK_CONTAINER (child));
84 gtk_notebook_page_accessible_get_name (AtkObject *accessible)
88 if (accessible->name != NULL)
89 return accessible->name;
91 label = get_label_from_notebook_page (GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible));
92 if (GTK_IS_LABEL (label))
93 return gtk_label_get_text (GTK_LABEL (label));
99 gtk_notebook_page_accessible_get_parent (AtkObject *accessible)
101 GtkNotebookPageAccessible *page;
103 page = GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible);
105 return ATK_OBJECT (page->notebook);
109 gtk_notebook_page_accessible_get_n_children (AtkObject *accessible)
115 gtk_notebook_page_accessible_ref_child (AtkObject *accessible,
118 AtkObject *child_obj;
119 GtkNotebookPageAccessible *page = NULL;
124 page = GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible);
128 child_obj = gtk_widget_get_accessible (page->child);
129 g_object_ref (child_obj);
135 gtk_notebook_page_accessible_ref_state_set (AtkObject *accessible)
137 AtkStateSet *state_set, *label_state_set, *merged_state_set;
138 AtkObject *atk_label;
141 state_set = ATK_OBJECT_CLASS (_gtk_notebook_page_accessible_parent_class)->ref_state_set (accessible);
143 label = get_label_from_notebook_page (GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible));
146 atk_label = gtk_widget_get_accessible (label);
147 label_state_set = atk_object_ref_state_set (atk_label);
148 merged_state_set = atk_state_set_or_sets (state_set, label_state_set);
149 g_object_unref (label_state_set);
150 g_object_unref (state_set);
156 child = atk_object_ref_accessible_child (accessible, 0);
160 merged_state_set = state_set;
161 state_set = atk_object_ref_state_set (child);
162 if (atk_state_set_contains_state (state_set, ATK_STATE_VISIBLE))
164 atk_state_set_add_state (merged_state_set, ATK_STATE_VISIBLE);
165 if (atk_state_set_contains_state (state_set, ATK_STATE_ENABLED))
166 atk_state_set_add_state (merged_state_set, ATK_STATE_ENABLED);
167 if (atk_state_set_contains_state (state_set, ATK_STATE_SHOWING))
168 atk_state_set_add_state (merged_state_set, ATK_STATE_SHOWING);
171 g_object_unref (state_set);
172 g_object_unref (child);
174 return merged_state_set;
178 gtk_notebook_page_accessible_get_index_in_parent (AtkObject *accessible)
180 GtkNotebookPageAccessible *page;
182 page = GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible);
186 return gtk_notebook_page_num (GTK_NOTEBOOK (gtk_accessible_get_widget (page->notebook)),
191 _gtk_notebook_page_accessible_class_init (GtkNotebookPageAccessibleClass *klass)
193 AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
195 class->get_name = gtk_notebook_page_accessible_get_name;
196 class->get_parent = gtk_notebook_page_accessible_get_parent;
197 class->get_n_children = gtk_notebook_page_accessible_get_n_children;
198 class->ref_child = gtk_notebook_page_accessible_ref_child;
199 class->ref_state_set = gtk_notebook_page_accessible_ref_state_set;
200 class->get_index_in_parent = gtk_notebook_page_accessible_get_index_in_parent;
204 _gtk_notebook_page_accessible_init (GtkNotebookPageAccessible *page)
209 notify_tab_label (GObject *object,
213 if (atk_obj->name == NULL)
214 g_object_notify (G_OBJECT (atk_obj), "accessible-name");
215 g_signal_emit_by_name (atk_obj, "visible-data-changed");
219 _gtk_notebook_page_accessible_new (GtkNotebookAccessible *notebook,
223 AtkObject *atk_object;
224 GtkNotebookPageAccessible *page;
226 g_return_val_if_fail (GTK_IS_NOTEBOOK_ACCESSIBLE (notebook), NULL);
227 g_return_val_if_fail (GTK_WIDGET (child), NULL);
229 object = g_object_new (GTK_TYPE_NOTEBOOK_PAGE_ACCESSIBLE, NULL);
231 page = GTK_NOTEBOOK_PAGE_ACCESSIBLE (object);
232 page->notebook = GTK_ACCESSIBLE (notebook);
235 atk_object = ATK_OBJECT (page);
236 atk_object->role = ATK_ROLE_PAGE_TAB;
237 atk_object->layer = ATK_LAYER_WIDGET;
239 atk_object_set_parent (gtk_widget_get_accessible (child), atk_object);
241 g_signal_connect (gtk_accessible_get_widget (page->notebook),
242 "child-notify::tab-label",
243 G_CALLBACK (notify_tab_label), page);
249 _gtk_notebook_page_accessible_invalidate (GtkNotebookPageAccessible *page)
251 AtkObject *obj = ATK_OBJECT (page);
254 notebook = gtk_accessible_get_widget (page->notebook);
256 g_signal_handlers_disconnect_by_func (notebook, notify_tab_label, page);
258 atk_object_notify_state_change (obj, ATK_STATE_DEFUNCT, TRUE);
259 atk_object_set_parent (obj, NULL);
260 page->notebook = NULL;
261 atk_object_set_parent (gtk_widget_get_accessible (page->child), NULL);
266 gtk_notebook_page_accessible_ref_accessible_at_point (AtkComponent *component,
269 AtkCoordType coord_type)
271 /* There is only one child so we return it */
274 child = atk_object_ref_accessible_child (ATK_OBJECT (component), 0);
280 gtk_notebook_page_accessible_get_extents (AtkComponent *component,
285 AtkCoordType coord_type)
288 AtkObject *atk_label;
290 label = get_label_from_notebook_page (GTK_NOTEBOOK_PAGE_ACCESSIBLE (component));
298 child = atk_object_ref_accessible_child (ATK_OBJECT (component), 0);
302 atk_component_get_position (ATK_COMPONENT (child), x, y, coord_type);
303 g_object_unref (child);
307 atk_label = gtk_widget_get_accessible (label);
308 atk_component_get_extents (ATK_COMPONENT (atk_label),
309 x, y, width, height, coord_type);
314 atk_component_interface_init (AtkComponentIface *iface)
316 /* We use the default implementations for contains, get_position, get_size */
317 iface->ref_accessible_at_point = gtk_notebook_page_accessible_ref_accessible_at_point;
318 iface->get_extents = gtk_notebook_page_accessible_get_extents;