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/* GAIL - The GNOME Accessibility Implementation Library
* Copyright 2001 Sun Microsystems Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <gtk/gtk.h>
#include "gailmenushell.h"
static void gail_menu_shell_class_init (GailMenuShellClass *klass);
static void gail_menu_shell_init (GailMenuShell *menu_shell);
static void gail_menu_shell_initialize (AtkObject *accessible,
gpointer data);
static void atk_selection_interface_init (AtkSelectionIface *iface);
static gboolean gail_menu_shell_add_selection (AtkSelection *selection,
gint i);
static gboolean gail_menu_shell_clear_selection (AtkSelection *selection);
static AtkObject* gail_menu_shell_ref_selection (AtkSelection *selection,
gint i);
static gint gail_menu_shell_get_selection_count (AtkSelection *selection);
static gboolean gail_menu_shell_is_child_selected (AtkSelection *selection,
gint i);
static gboolean gail_menu_shell_remove_selection (AtkSelection *selection,
gint i);
G_DEFINE_TYPE_WITH_CODE (GailMenuShell, gail_menu_shell, GAIL_TYPE_CONTAINER,
G_IMPLEMENT_INTERFACE (ATK_TYPE_SELECTION, atk_selection_interface_init))
static void
gail_menu_shell_class_init (GailMenuShellClass *klass)
{
AtkObjectClass *atk_object_class = ATK_OBJECT_CLASS (klass);
atk_object_class->initialize = gail_menu_shell_initialize;
}
static void
gail_menu_shell_init (GailMenuShell *menu_shell)
{
}
static void
gail_menu_shell_initialize (AtkObject *accessible,
gpointer data)
{
ATK_OBJECT_CLASS (gail_menu_shell_parent_class)->initialize (accessible, data);
if (GTK_IS_MENU_BAR (data))
accessible->role = ATK_ROLE_MENU_BAR;
else
/*
* Accessible object for Menu is created in gailmenu.c
*/
accessible->role = ATK_ROLE_UNKNOWN;
}
static void
atk_selection_interface_init (AtkSelectionIface *iface)
{
iface->add_selection = gail_menu_shell_add_selection;
iface->clear_selection = gail_menu_shell_clear_selection;
iface->ref_selection = gail_menu_shell_ref_selection;
iface->get_selection_count = gail_menu_shell_get_selection_count;
iface->is_child_selected = gail_menu_shell_is_child_selected;
iface->remove_selection = gail_menu_shell_remove_selection;
/*
* select_all_selection does not make sense for a menu_shell
* so no implementation is provided.
*/
}
static gboolean
gail_menu_shell_add_selection (AtkSelection *selection,
gint i)
{
GtkMenuShell *shell;
GList *item;
guint length;
GtkWidget *widget;
widget = GTK_ACCESSIBLE (selection)->widget;
if (widget == NULL)
{
/* State is defunct */
return FALSE;
}
shell = GTK_MENU_SHELL (widget);
length = g_list_length (shell->children);
if (i < 0 || i > length)
return FALSE;
item = g_list_nth (shell->children, i);
g_return_val_if_fail (item != NULL, FALSE);
g_return_val_if_fail (GTK_IS_MENU_ITEM(item->data), FALSE);
gtk_menu_shell_select_item (shell, GTK_WIDGET (item->data));
return TRUE;
}
static gboolean
gail_menu_shell_clear_selection (AtkSelection *selection)
{
GtkMenuShell *shell;
GtkWidget *widget;
widget = GTK_ACCESSIBLE (selection)->widget;
if (widget == NULL)
{
/* State is defunct */
return FALSE;
}
shell = GTK_MENU_SHELL (widget);
gtk_menu_shell_deselect (shell);
return TRUE;
}
static AtkObject*
gail_menu_shell_ref_selection (AtkSelection *selection,
gint i)
{
GtkMenuShell *shell;
AtkObject *obj;
GtkWidget *widget;
if (i != 0)
return NULL;
widget = GTK_ACCESSIBLE (selection)->widget;
if (widget == NULL)
{
/* State is defunct */
return NULL;
}
shell = GTK_MENU_SHELL (widget);
if (shell->active_menu_item != NULL)
{
obj = gtk_widget_get_accessible (shell->active_menu_item);
g_object_ref (obj);
return obj;
}
else
{
return NULL;
}
}
static gint
gail_menu_shell_get_selection_count (AtkSelection *selection)
{
GtkMenuShell *shell;
GtkWidget *widget;
widget = GTK_ACCESSIBLE (selection)->widget;
if (widget == NULL)
{
/* State is defunct */
return 0;
}
shell = GTK_MENU_SHELL (widget);
/*
* Identifies the currently selected menu item
*/
if (shell->active_menu_item == NULL)
{
return 0;
}
else
{
return 1;
}
}
static gboolean
gail_menu_shell_is_child_selected (AtkSelection *selection,
gint i)
{
GtkMenuShell *shell;
gint j;
GtkWidget *widget;
widget = GTK_ACCESSIBLE (selection)->widget;
if (widget == NULL)
{
/* State is defunct */
return FALSE;
}
shell = GTK_MENU_SHELL (widget);
if (shell->active_menu_item == NULL)
return FALSE;
j = g_list_index (shell->children, shell->active_menu_item);
return (j==i);
}
static gboolean
gail_menu_shell_remove_selection (AtkSelection *selection,
gint i)
{
GtkMenuShell *shell;
GtkWidget *widget;
if (i != 0)
return FALSE;
widget = GTK_ACCESSIBLE (selection)->widget;
if (widget == NULL)
{
/* State is defunct */
return FALSE;
}
shell = GTK_MENU_SHELL (widget);
if (shell->active_menu_item &&
GTK_MENU_ITEM (shell->active_menu_item)->submenu)
{
/*
* Menu item contains a menu and it is the selected menu item
* so deselect it.
*/
gtk_menu_shell_deselect (shell);
}
return TRUE;
}
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