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, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
24 #include "gtknotebookpageaccessible.h"
27 static void atk_component_interface_init (AtkComponentIface *iface);
29 G_DEFINE_TYPE_WITH_CODE (GtkNotebookPageAccessible, _gtk_notebook_page_accessible, ATK_TYPE_OBJECT,
30 G_IMPLEMENT_INTERFACE (ATK_TYPE_COMPONENT, atk_component_interface_init))
34 find_label_child (GtkContainer *container)
36 GList *children, *tmp_list;
39 children = gtk_container_get_children (container);
42 for (tmp_list = children; tmp_list != NULL; tmp_list = tmp_list->next)
44 if (GTK_IS_LABEL (tmp_list->data))
46 child = GTK_WIDGET (tmp_list->data);
49 else if (GTK_IS_CONTAINER (tmp_list->data))
51 child = find_label_child (GTK_CONTAINER (tmp_list->data));
56 g_list_free (children);
62 get_label_from_notebook_page (GtkNotebookPageAccessible *page)
65 GtkNotebook *notebook;
67 notebook = GTK_NOTEBOOK (gtk_accessible_get_widget (page->notebook));
71 if (!gtk_notebook_get_show_tabs (notebook))
74 child = gtk_notebook_get_tab_label (notebook, page->child);
76 if (GTK_IS_LABEL (child))
79 if (GTK_IS_CONTAINER (child))
80 child = find_label_child (GTK_CONTAINER (child));
86 gtk_notebook_page_accessible_get_name (AtkObject *accessible)
90 if (accessible->name != NULL)
91 return accessible->name;
93 label = get_label_from_notebook_page (GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible));
94 if (GTK_IS_LABEL (label))
95 return gtk_label_get_text (GTK_LABEL (label));
101 gtk_notebook_page_accessible_get_parent (AtkObject *accessible)
103 GtkNotebookPageAccessible *page;
105 page = GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible);
107 return ATK_OBJECT (page->notebook);
111 gtk_notebook_page_accessible_get_n_children (AtkObject *accessible)
117 gtk_notebook_page_accessible_ref_child (AtkObject *accessible,
120 AtkObject *child_obj;
121 GtkNotebookPageAccessible *page = NULL;
126 page = GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible);
130 child_obj = gtk_widget_get_accessible (page->child);
131 g_object_ref (child_obj);
137 gtk_notebook_page_accessible_ref_state_set (AtkObject *accessible)
139 AtkStateSet *state_set, *label_state_set, *merged_state_set;
140 AtkObject *atk_label;
143 state_set = ATK_OBJECT_CLASS (_gtk_notebook_page_accessible_parent_class)->ref_state_set (accessible);
145 label = get_label_from_notebook_page (GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible));
148 atk_label = gtk_widget_get_accessible (label);
149 label_state_set = atk_object_ref_state_set (atk_label);
150 merged_state_set = atk_state_set_or_sets (state_set, label_state_set);
151 g_object_unref (label_state_set);
152 g_object_unref (state_set);
158 child = atk_object_ref_accessible_child (accessible, 0);
162 merged_state_set = state_set;
163 state_set = atk_object_ref_state_set (child);
164 if (atk_state_set_contains_state (state_set, ATK_STATE_VISIBLE))
166 atk_state_set_add_state (merged_state_set, ATK_STATE_VISIBLE);
167 if (atk_state_set_contains_state (state_set, ATK_STATE_ENABLED))
168 atk_state_set_add_state (merged_state_set, ATK_STATE_ENABLED);
169 if (atk_state_set_contains_state (state_set, ATK_STATE_SHOWING))
170 atk_state_set_add_state (merged_state_set, ATK_STATE_SHOWING);
173 g_object_unref (state_set);
174 g_object_unref (child);
176 return merged_state_set;
180 gtk_notebook_page_accessible_get_index_in_parent (AtkObject *accessible)
182 GtkNotebookPageAccessible *page;
184 page = GTK_NOTEBOOK_PAGE_ACCESSIBLE (accessible);
188 return gtk_notebook_page_num (GTK_NOTEBOOK (gtk_accessible_get_widget (page->notebook)),
193 _gtk_notebook_page_accessible_class_init (GtkNotebookPageAccessibleClass *klass)
195 AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
197 class->get_name = gtk_notebook_page_accessible_get_name;
198 class->get_parent = gtk_notebook_page_accessible_get_parent;
199 class->get_n_children = gtk_notebook_page_accessible_get_n_children;
200 class->ref_child = gtk_notebook_page_accessible_ref_child;
201 class->ref_state_set = gtk_notebook_page_accessible_ref_state_set;
202 class->get_index_in_parent = gtk_notebook_page_accessible_get_index_in_parent;
206 _gtk_notebook_page_accessible_init (GtkNotebookPageAccessible *page)
211 notify_tab_label (GObject *object,
215 if (atk_obj->name == NULL)
216 g_object_notify (G_OBJECT (atk_obj), "accessible-name");
217 g_signal_emit_by_name (atk_obj, "visible-data-changed");
221 _gtk_notebook_page_accessible_new (GtkNotebookAccessible *notebook,
225 AtkObject *atk_object;
226 GtkNotebookPageAccessible *page;
228 g_return_val_if_fail (GTK_IS_NOTEBOOK_ACCESSIBLE (notebook), NULL);
229 g_return_val_if_fail (GTK_WIDGET (child), NULL);
231 object = g_object_new (GTK_TYPE_NOTEBOOK_PAGE_ACCESSIBLE, NULL);
233 page = GTK_NOTEBOOK_PAGE_ACCESSIBLE (object);
234 page->notebook = GTK_ACCESSIBLE (notebook);
237 atk_object = ATK_OBJECT (page);
238 atk_object->role = ATK_ROLE_PAGE_TAB;
239 atk_object->layer = ATK_LAYER_WIDGET;
241 atk_object_set_parent (gtk_widget_get_accessible (child), atk_object);
243 g_signal_connect (gtk_accessible_get_widget (page->notebook),
244 "child-notify::tab-label",
245 G_CALLBACK (notify_tab_label), page);
251 _gtk_notebook_page_accessible_invalidate (GtkNotebookPageAccessible *page)
253 AtkObject *obj = ATK_OBJECT (page);
256 notebook = gtk_accessible_get_widget (page->notebook);
258 g_signal_handlers_disconnect_by_func (notebook, notify_tab_label, page);
260 atk_object_notify_state_change (obj, ATK_STATE_DEFUNCT, TRUE);
261 atk_object_set_parent (obj, NULL);
262 page->notebook = NULL;
263 atk_object_set_parent (gtk_widget_get_accessible (page->child), NULL);
268 gtk_notebook_page_accessible_ref_accessible_at_point (AtkComponent *component,
271 AtkCoordType coord_type)
273 /* There is only one child so we return it */
276 child = atk_object_ref_accessible_child (ATK_OBJECT (component), 0);
282 gtk_notebook_page_accessible_get_extents (AtkComponent *component,
287 AtkCoordType coord_type)
290 AtkObject *atk_label;
292 label = get_label_from_notebook_page (GTK_NOTEBOOK_PAGE_ACCESSIBLE (component));
300 child = atk_object_ref_accessible_child (ATK_OBJECT (component), 0);
304 atk_component_get_position (ATK_COMPONENT (child), x, y, coord_type);
305 g_object_unref (child);
309 atk_label = gtk_widget_get_accessible (label);
310 atk_component_get_extents (ATK_COMPONENT (atk_label),
311 x, y, width, height, coord_type);
316 atk_component_interface_init (AtkComponentIface *iface)
318 /* We use the default implementations for contains, get_position, get_size */
319 iface->ref_accessible_at_point = gtk_notebook_page_accessible_ref_accessible_at_point;
320 iface->get_extents = gtk_notebook_page_accessible_get_extents;