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 struct _GtkNotebookPageAccessiblePrivate
27 GtkAccessible *notebook;
31 static void atk_component_interface_init (AtkComponentIface *iface);
33 G_DEFINE_TYPE_WITH_CODE (GtkNotebookPageAccessible, _gtk_notebook_page_accessible, ATK_TYPE_OBJECT,
34 G_IMPLEMENT_INTERFACE (ATK_TYPE_COMPONENT, atk_component_interface_init))
38 find_label_child (GtkContainer *container)
40 GList *children, *tmp_list;
43 children = gtk_container_get_children (container);
46 for (tmp_list = children; tmp_list != NULL; tmp_list = tmp_list->next)
48 if (GTK_IS_LABEL (tmp_list->data))
50 child = GTK_WIDGET (tmp_list->data);
53 else if (GTK_IS_CONTAINER (tmp_list->data))
55 child = find_label_child (GTK_CONTAINER (tmp_list->data));
60 g_list_free (children);
66 get_label_from_notebook_page (GtkNotebookPageAccessible *page)
69 GtkNotebook *notebook;
71 notebook = GTK_NOTEBOOK (gtk_accessible_get_widget (page->priv->notebook));
75 if (!gtk_notebook_get_show_tabs (notebook))
78 child = gtk_notebook_get_tab_label (notebook, page->priv->child);
80 if (GTK_IS_LABEL (child))
83 if (GTK_IS_CONTAINER (child))
84 child = find_label_child (GTK_CONTAINER (child));
90 gtk_notebook_page_accessible_get_name (AtkObject *accessible)
94 if (accessible->name != NULL)
95 return accessible->name;
97 label = get_label_from_notebook_page (GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible));
98 if (GTK_IS_LABEL (label))
99 return gtk_label_get_text (GTK_LABEL (label));
105 gtk_notebook_page_accessible_get_parent (AtkObject *accessible)
107 GtkNotebookPageAccessible *page;
109 page = GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible);
111 return ATK_OBJECT (page->priv->notebook);
115 gtk_notebook_page_accessible_get_n_children (AtkObject *accessible)
121 gtk_notebook_page_accessible_ref_child (AtkObject *accessible,
124 AtkObject *child_obj;
125 GtkNotebookPageAccessible *page = NULL;
130 page = GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible);
131 if (!page->priv->child)
134 child_obj = gtk_widget_get_accessible (page->priv->child);
135 g_object_ref (child_obj);
141 gtk_notebook_page_accessible_ref_state_set (AtkObject *accessible)
143 AtkStateSet *state_set, *label_state_set, *merged_state_set;
144 AtkObject *atk_label;
147 state_set = ATK_OBJECT_CLASS (_gtk_notebook_page_accessible_parent_class)->ref_state_set (accessible);
149 label = get_label_from_notebook_page (GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible));
152 atk_label = gtk_widget_get_accessible (label);
153 label_state_set = atk_object_ref_state_set (atk_label);
154 merged_state_set = atk_state_set_or_sets (state_set, label_state_set);
155 g_object_unref (label_state_set);
156 g_object_unref (state_set);
162 child = atk_object_ref_accessible_child (accessible, 0);
166 merged_state_set = state_set;
167 state_set = atk_object_ref_state_set (child);
168 if (atk_state_set_contains_state (state_set, ATK_STATE_VISIBLE))
170 atk_state_set_add_state (merged_state_set, ATK_STATE_VISIBLE);
171 if (atk_state_set_contains_state (state_set, ATK_STATE_ENABLED))
172 atk_state_set_add_state (merged_state_set, ATK_STATE_ENABLED);
173 if (atk_state_set_contains_state (state_set, ATK_STATE_SHOWING))
174 atk_state_set_add_state (merged_state_set, ATK_STATE_SHOWING);
177 g_object_unref (state_set);
178 g_object_unref (child);
180 return merged_state_set;
184 gtk_notebook_page_accessible_get_index_in_parent (AtkObject *accessible)
186 GtkNotebookPageAccessible *page;
188 page = GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible);
189 if (!page->priv->child)
192 return gtk_notebook_page_num (GTK_NOTEBOOK (gtk_accessible_get_widget (page->priv->notebook)),
197 _gtk_notebook_page_accessible_class_init (GtkNotebookPageAccessibleClass *klass)
199 AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
201 class->get_name = gtk_notebook_page_accessible_get_name;
202 class->get_parent = gtk_notebook_page_accessible_get_parent;
203 class->get_n_children = gtk_notebook_page_accessible_get_n_children;
204 class->ref_child = gtk_notebook_page_accessible_ref_child;
205 class->ref_state_set = gtk_notebook_page_accessible_ref_state_set;
206 class->get_index_in_parent = gtk_notebook_page_accessible_get_index_in_parent;
208 g_type_class_add_private (klass, sizeof (GtkNotebookPageAccessiblePrivate));
212 _gtk_notebook_page_accessible_init (GtkNotebookPageAccessible *page)
214 page->priv = G_TYPE_INSTANCE_GET_PRIVATE (page,
215 GTK_TYPE_NOTEBOOK_PAGE_ACCESSIBLE,
216 GtkNotebookPageAccessiblePrivate);
220 notify_tab_label (GObject *object,
224 if (atk_obj->name == NULL)
225 g_object_notify (G_OBJECT (atk_obj), "accessible-name");
226 g_signal_emit_by_name (atk_obj, "visible-data-changed");
230 _gtk_notebook_page_accessible_new (GtkNotebookAccessible *notebook,
234 AtkObject *atk_object;
235 GtkNotebookPageAccessible *page;
237 g_return_val_if_fail (GTK_IS_NOTEBOOK_ACCESSIBLE (notebook), NULL);
238 g_return_val_if_fail (GTK_WIDGET (child), NULL);
240 object = g_object_new (GTK_TYPE_NOTEBOOK_PAGE_ACCESSIBLE, NULL);
242 page = GTK_NOTEBOOK_PAGE_ACCESSIBLE (object);
243 page->priv->notebook = GTK_ACCESSIBLE (notebook);
244 page->priv->child = child;
246 atk_object = ATK_OBJECT (page);
247 atk_object->role = ATK_ROLE_PAGE_TAB;
248 atk_object->layer = ATK_LAYER_WIDGET;
250 atk_object_set_parent (gtk_widget_get_accessible (child), atk_object);
252 g_signal_connect (gtk_accessible_get_widget (page->priv->notebook),
253 "child-notify::tab-label",
254 G_CALLBACK (notify_tab_label), page);
260 _gtk_notebook_page_accessible_invalidate (GtkNotebookPageAccessible *page)
262 AtkObject *obj = ATK_OBJECT (page);
265 notebook = gtk_accessible_get_widget (page->priv->notebook);
267 g_signal_handlers_disconnect_by_func (notebook, notify_tab_label, page);
269 atk_object_notify_state_change (obj, ATK_STATE_DEFUNCT, TRUE);
270 atk_object_set_parent (obj, NULL);
271 page->priv->notebook = NULL;
272 atk_object_set_parent (gtk_widget_get_accessible (page->priv->child), NULL);
273 page->priv->child = NULL;
277 gtk_notebook_page_accessible_ref_accessible_at_point (AtkComponent *component,
280 AtkCoordType coord_type)
282 /* There is only one child so we return it */
285 child = atk_object_ref_accessible_child (ATK_OBJECT (component), 0);
291 gtk_notebook_page_accessible_get_extents (AtkComponent *component,
296 AtkCoordType coord_type)
299 AtkObject *atk_label;
301 label = get_label_from_notebook_page (GTK_NOTEBOOK_PAGE_ACCESSIBLE (component));
309 child = atk_object_ref_accessible_child (ATK_OBJECT (component), 0);
313 atk_component_get_position (ATK_COMPONENT (child), x, y, coord_type);
314 g_object_unref (child);
318 atk_label = gtk_widget_get_accessible (label);
319 atk_component_get_extents (ATK_COMPONENT (atk_label),
320 x, y, width, height, coord_type);
325 atk_component_interface_init (AtkComponentIface *iface)
327 /* We use the default implementations for contains, get_position, get_size */
328 iface->ref_accessible_at_point = gtk_notebook_page_accessible_ref_accessible_at_point;
329 iface->get_extents = gtk_notebook_page_accessible_get_extents;