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2e39df771383686271834cba10fbb2554b4044fe
gtk3/gtk/a11y/gtkmenuitemaccessible.c
Ryan Lortie 49ccb23743 GtkMenuItemAccessible: use "insert" signal 
Use the "insert" rather than the "add" signal to reliably detect
additions of menu items.

https://bugzilla.gnome.org/show_bug.cgi?id=372545
2014-08-15 10:29:48 -04:00

928 lines
25 KiB
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/* GTK+ - accessibility implementations
* Copyright 2001, 2002, 2003 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <glib/gi18n-lib.h>
#include <string.h>
#include <gtk/gtk.h>
#include "gtkmenuitemaccessible.h"
#include "gtkwidgetaccessibleprivate.h"
#include "gtk/gtkmenuitemprivate.h"
struct _GtkMenuItemAccessiblePrivate
{
gchar *text;
gboolean selected;
};
#define KEYBINDING_SEPARATOR ";"
static void menu_item_select (GtkMenuItem *item);
static void menu_item_deselect (GtkMenuItem *item);
static GtkWidget *get_label_from_container (GtkWidget *container);
static gchar *get_text_from_label_widget (GtkWidget *widget);
static gint menu_item_insert_gtk (GtkMenuShell *shell,
GtkWidget *widget,
gint position);
static gint menu_item_remove_gtk (GtkContainer *container,
GtkWidget *widget);
static void atk_action_interface_init (AtkActionIface *iface);
static void atk_selection_interface_init (AtkSelectionIface *iface);
G_DEFINE_TYPE_WITH_CODE (GtkMenuItemAccessible, gtk_menu_item_accessible, GTK_TYPE_CONTAINER_ACCESSIBLE,
G_ADD_PRIVATE (GtkMenuItemAccessible)
G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init);
G_IMPLEMENT_INTERFACE (ATK_TYPE_SELECTION, atk_selection_interface_init))
static void
gtk_menu_item_accessible_initialize (AtkObject *obj,
gpointer data)
{
GtkWidget *widget;
GtkWidget *parent;
GtkWidget *menu;
ATK_OBJECT_CLASS (gtk_menu_item_accessible_parent_class)->initialize (obj, data);
g_signal_connect (data, "select", G_CALLBACK (menu_item_select), NULL);
g_signal_connect (data, "deselect", G_CALLBACK (menu_item_deselect), NULL);
widget = GTK_WIDGET (data);
if ((gtk_widget_get_state_flags (widget) & GTK_STATE_FLAG_PRELIGHT) != 0)
GTK_MENU_ITEM_ACCESSIBLE (obj)->priv->selected = TRUE;
parent = gtk_widget_get_parent (widget);
if (GTK_IS_MENU (parent))
{
GtkWidget *parent_widget;
parent_widget = gtk_menu_get_attach_widget (GTK_MENU (parent));
if (!GTK_IS_MENU_ITEM (parent_widget))
parent_widget = gtk_widget_get_parent (widget);
if (parent_widget)
atk_object_set_parent (obj, gtk_widget_get_accessible (parent_widget));
}
_gtk_widget_accessible_set_layer (GTK_WIDGET_ACCESSIBLE (obj), ATK_LAYER_POPUP);
obj->role = ATK_ROLE_MENU_ITEM;
menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (data));
if (menu)
{
g_signal_connect (menu, "insert", G_CALLBACK (menu_item_insert_gtk), NULL);
g_signal_connect (menu, "remove", G_CALLBACK (menu_item_remove_gtk), NULL);
}
}
static gint
gtk_menu_item_accessible_get_n_children (AtkObject *obj)
{
GtkWidget *widget;
GtkWidget *submenu;
gint count = 0;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
if (widget == NULL)
return count;
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
if (submenu)
{
GList *children;
children = gtk_container_get_children (GTK_CONTAINER (submenu));
count = g_list_length (children);
g_list_free (children);
}
return count;
}
static AtkObject *
gtk_menu_item_accessible_ref_child (AtkObject *obj,
gint i)
{
AtkObject *accessible;
GtkWidget *widget;
GtkWidget *submenu;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
if (widget == NULL)
return NULL;
accessible = NULL;
submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
if (submenu)
{
GList *children;
GList *tmp_list;
children = gtk_container_get_children (GTK_CONTAINER (submenu));
tmp_list = g_list_nth (children, i);
if (tmp_list)
{
accessible = gtk_widget_get_accessible (GTK_WIDGET (tmp_list->data));
g_object_ref (accessible);
}
g_list_free (children);
}
return accessible;
}
static AtkStateSet *
gtk_menu_item_accessible_ref_state_set (AtkObject *obj)
{
AtkObject *menu_item;
AtkStateSet *state_set, *parent_state_set;
state_set = ATK_OBJECT_CLASS (gtk_menu_item_accessible_parent_class)->ref_state_set (obj);
atk_state_set_add_state (state_set, ATK_STATE_SELECTABLE);
if (GTK_MENU_ITEM_ACCESSIBLE (obj)->priv->selected)
atk_state_set_add_state (state_set, ATK_STATE_SELECTED);
menu_item = atk_object_get_parent (obj);
if (menu_item)
{
if (!GTK_IS_MENU_ITEM (gtk_accessible_get_widget (GTK_ACCESSIBLE (menu_item))))
return state_set;
parent_state_set = atk_object_ref_state_set (menu_item);
if (!atk_state_set_contains_state (parent_state_set, ATK_STATE_SELECTED))
{
atk_state_set_remove_state (state_set, ATK_STATE_FOCUSED);
atk_state_set_remove_state (state_set, ATK_STATE_SHOWING);
}
g_object_unref (parent_state_set);
}
return state_set;
}
static AtkRole
gtk_menu_item_accessible_get_role (AtkObject *obj)
{
GtkWidget *widget;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
if (widget != NULL &&
gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget)))
return ATK_ROLE_MENU;
return ATK_OBJECT_CLASS (gtk_menu_item_accessible_parent_class)->get_role (obj);
}
static const gchar *
gtk_menu_item_accessible_get_name (AtkObject *obj)
{
const gchar *name;
GtkWidget *widget;
GtkWidget *label;
GtkMenuItemAccessible *accessible;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
if (widget == NULL)
return NULL;
name = ATK_OBJECT_CLASS (gtk_menu_item_accessible_parent_class)->get_name (obj);
if (name)
return name;
accessible = GTK_MENU_ITEM_ACCESSIBLE (obj);
label = get_label_from_container (widget);
g_free (accessible->priv->text);
accessible->priv->text = get_text_from_label_widget (label);
return accessible->priv->text;
}
static void
gtk_menu_item_accessible_finalize (GObject *object)
{
GtkMenuItemAccessible *accessible = GTK_MENU_ITEM_ACCESSIBLE (object);
g_free (accessible->priv->text);
G_OBJECT_CLASS (gtk_menu_item_accessible_parent_class)->finalize (object);
}
static void
gtk_menu_item_accessible_notify_gtk (GObject *obj,
GParamSpec *pspec)
{
AtkObject* atk_obj;
atk_obj = gtk_widget_get_accessible (GTK_WIDGET (obj));
if (strcmp (pspec->name, "label") == 0)
{
if (atk_obj->name == NULL)
g_object_notify (G_OBJECT (atk_obj), "accessible-name");
g_signal_emit_by_name (atk_obj, "visible-data-changed");
}
else
GTK_WIDGET_ACCESSIBLE_CLASS (gtk_menu_item_accessible_parent_class)->notify_gtk (obj, pspec);
}
static void
gtk_menu_item_accessible_class_init (GtkMenuItemAccessibleClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
GtkWidgetAccessibleClass *widget_class = (GtkWidgetAccessibleClass*)klass;
widget_class->notify_gtk = gtk_menu_item_accessible_notify_gtk;
gobject_class->finalize = gtk_menu_item_accessible_finalize;
class->get_n_children = gtk_menu_item_accessible_get_n_children;
class->ref_child = gtk_menu_item_accessible_ref_child;
class->ref_state_set = gtk_menu_item_accessible_ref_state_set;
class->initialize = gtk_menu_item_accessible_initialize;
class->get_name = gtk_menu_item_accessible_get_name;
class->get_role = gtk_menu_item_accessible_get_role;
}
static void
gtk_menu_item_accessible_init (GtkMenuItemAccessible *menu_item)
{
menu_item->priv = gtk_menu_item_accessible_get_instance_private (menu_item);
}
static GtkWidget *
get_label_from_container (GtkWidget *container)
{
GtkWidget *label;
GList *children, *tmp_list;
if (!GTK_IS_CONTAINER (container))
return NULL;
children = gtk_container_get_children (GTK_CONTAINER (container));
label = NULL;
for (tmp_list = children; tmp_list != NULL; tmp_list = tmp_list->next)
{
if (GTK_IS_LABEL (tmp_list->data))
{
label = tmp_list->data;
break;
}
else if (GTK_IS_CELL_VIEW (tmp_list->data))
{
label = tmp_list->data;
break;
}
else if (GTK_IS_BOX (tmp_list->data))
{
label = get_label_from_container (GTK_WIDGET (tmp_list->data));
if (label)
break;
}
}
g_list_free (children);
return label;
}
static gchar *
get_text_from_label_widget (GtkWidget *label)
{
if (GTK_IS_LABEL (label))
return g_strdup (gtk_label_get_text (GTK_LABEL (label)));
else if (GTK_IS_CELL_VIEW (label))
{
GList *cells, *l;
GtkTreeModel *model;
GtkTreeIter iter;
GtkTreePath *path;
GtkCellArea *area;
gchar *text;
model = gtk_cell_view_get_model (GTK_CELL_VIEW (label));
path = gtk_cell_view_get_displayed_row (GTK_CELL_VIEW (label));
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_path_free (path);
area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (label));
gtk_cell_area_apply_attributes (area, model, &iter, FALSE, FALSE);
cells = gtk_cell_layout_get_cells (GTK_CELL_LAYOUT (label));
text = NULL;
for (l = cells; l; l = l->next)
{
GtkCellRenderer *cell = l->data;
if (GTK_IS_CELL_RENDERER_TEXT (cell))
{
g_object_get (cell, "text", &text, NULL);
break;
}
}
g_list_free (cells);
return text;
}
return NULL;
}
static void
ensure_menus_unposted (GtkMenuItemAccessible *menu_item)
{
AtkObject *parent;
GtkWidget *widget;
parent = atk_object_get_parent (ATK_OBJECT (menu_item));
while (parent)
{
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (parent));
if (GTK_IS_MENU (widget))
{
if (gtk_widget_get_mapped (widget))
gtk_menu_shell_cancel (GTK_MENU_SHELL (widget));
return;
}
parent = atk_object_get_parent (parent);
}
}
static gboolean
gtk_menu_item_accessible_do_action (AtkAction *action,
gint i)
{
GtkWidget *item, *item_parent;
gboolean item_mapped;
item = gtk_accessible_get_widget (GTK_ACCESSIBLE (action));
if (item == NULL)
return FALSE;
if (i != 0)
return FALSE;
if (!gtk_widget_get_sensitive (item) || !gtk_widget_get_visible (item))
return FALSE;
item_parent = gtk_widget_get_parent (item);
if (!GTK_IS_MENU_SHELL (item_parent))
return FALSE;
gtk_menu_shell_select_item (GTK_MENU_SHELL (item_parent), item);
item_mapped = gtk_widget_get_mapped (item);
/* This is what is called when <Return> is pressed for a menu item.
* The last argument means 'force hide'.
*/
g_signal_emit_by_name (item_parent, "activate-current", 1);
if (!item_mapped)
ensure_menus_unposted (GTK_MENU_ITEM_ACCESSIBLE (action));
return TRUE;
}
static gint
gtk_menu_item_accessible_get_n_actions (AtkAction *action)
{
GtkWidget *item;
item = gtk_accessible_get_widget (GTK_ACCESSIBLE (action));
if (item == NULL)
return 0;
if (!_gtk_menu_item_is_selectable (item))
return 0;
return 1;
}
static const gchar *
gtk_menu_item_accessible_action_get_name (AtkAction *action,
gint i)
{
if (i == 0 && gtk_menu_item_accessible_get_n_actions (action) > 0)
return "click";
return NULL;
}
static const gchar *
gtk_menu_item_accessible_action_get_localized_name (AtkAction *action,
gint i)
{
if (i == 0 && gtk_menu_item_accessible_get_n_actions (action) > 0)
return C_("Action name", "Click");
return NULL;
}
static const gchar *
gtk_menu_item_accessible_action_get_description (AtkAction *action,
gint i)
{
if (i == 0 && gtk_menu_item_accessible_get_n_actions (action) > 0)
return C_("Action description", "Clicks the menuitem");
return NULL;
}
static gboolean
find_accel_by_widget (GtkAccelKey *key,
GClosure *closure,
gpointer data)
{
/* We assume that closure->data points to the widget
* pending gtk_widget_get_accel_closures being made public
*/
return data == (gpointer) closure->data;
}
static gboolean
find_accel_by_closure (GtkAccelKey *key,
GClosure *closure,
gpointer data)
{
return data == (gpointer) closure;
}
static GtkWidget *
find_item_label (GtkWidget *item)
{
GtkWidget *child;
child = gtk_bin_get_child (GTK_BIN (item));
if (GTK_IS_CONTAINER (child))
{
GList *children, *l;
children = gtk_container_get_children (GTK_CONTAINER (child));
for (l = children; l; l = l->next)
{
if (GTK_IS_LABEL (l->data))
{
child = l->data;
break;
}
}
g_list_free (children);
}
if (GTK_IS_LABEL (child))
return child;
return NULL;
}
/* This function returns a string of the form A;B;C where A is
* the keybinding for the widget; B is the keybinding to traverse
* from the menubar and C is the accelerator. The items in the
* keybinding to traverse from the menubar are separated by “:”.
*/
static const gchar *
gtk_menu_item_accessible_get_keybinding (AtkAction *action,
gint i)
{
gchar *keybinding = NULL;
gchar *item_keybinding = NULL;
gchar *full_keybinding = NULL;
gchar *accelerator = NULL;
GtkWidget *item;
GtkWidget *temp_item;
GtkWidget *child;
GtkWidget *parent;
item = gtk_accessible_get_widget (GTK_ACCESSIBLE (action));
if (item == NULL)
return NULL;
if (i != 0)
return NULL;
temp_item = item;
while (TRUE)
{
GdkModifierType mnemonic_modifier = 0;
guint key_val;
gchar *key, *temp_keybinding;
if (gtk_bin_get_child (GTK_BIN (temp_item)) == NULL)
return NULL;
parent = gtk_widget_get_parent (temp_item);
if (!parent)
/* parent can be NULL when activating a window from the panel */
return NULL;
if (GTK_IS_MENU_BAR (parent))
{
GtkWidget *toplevel;
toplevel = gtk_widget_get_toplevel (parent);
if (toplevel && GTK_IS_WINDOW (toplevel))
mnemonic_modifier =
gtk_window_get_mnemonic_modifier (GTK_WINDOW (toplevel));
}
child = find_item_label (temp_item);
if (GTK_IS_LABEL (child))
{
key_val = gtk_label_get_mnemonic_keyval (GTK_LABEL (child));
if (key_val != GDK_KEY_VoidSymbol)
{
key = gtk_accelerator_name (key_val, mnemonic_modifier);
if (full_keybinding)
temp_keybinding = g_strconcat (key, ":", full_keybinding, NULL);
else
temp_keybinding = g_strdup (key);
if (temp_item == item)
item_keybinding = g_strdup (key);
g_free (key);
g_free (full_keybinding);
full_keybinding = temp_keybinding;
}
else
{
/* No keybinding */
g_free (full_keybinding);
full_keybinding = NULL;
break;
}
}
/* We have reached the menu bar so we are finished */
if (GTK_IS_MENU_BAR (parent))
break;
g_return_val_if_fail (GTK_IS_MENU (parent), NULL);
temp_item = gtk_menu_get_attach_widget (GTK_MENU (parent));
if (!GTK_IS_MENU_ITEM (temp_item))
{
/* Menu is attached to something other than a menu item;
* probably an option menu
*/
g_free (full_keybinding);
full_keybinding = NULL;
break;
}
}
parent = gtk_widget_get_parent (item);
if (GTK_IS_MENU (parent))
{
child = find_item_label (item);
if (GTK_IS_ACCEL_LABEL (child))
{
guint accel_key;
GdkModifierType accel_mods;
gtk_accel_label_get_accel (GTK_ACCEL_LABEL (child), &accel_key, &accel_mods);
if (accel_key)
accelerator = gtk_accelerator_name (accel_key, accel_mods);
}
if (!accelerator)
{
GtkAccelGroup *group;
GtkAccelKey *key = NULL;
group = gtk_menu_get_accel_group (GTK_MENU (parent));
if (group)
key = gtk_accel_group_find (group, find_accel_by_widget, item);
else if (GTK_IS_ACCEL_LABEL (child))
{
GtkAccelLabel *accel_label;
GClosure *accel_closure;
accel_label = GTK_ACCEL_LABEL (child);
g_object_get (accel_label, "accel-closure", &accel_closure, NULL);
if (accel_closure)
{
key = gtk_accel_group_find (gtk_accel_group_from_accel_closure (accel_closure),
find_accel_by_closure,
accel_closure);
g_closure_unref (accel_closure);
}
}
if (key)
accelerator = gtk_accelerator_name (key->accel_key, key->accel_mods);
}
}
/* Concatenate the bindings */
if (item_keybinding || full_keybinding || accelerator)
{
gchar *temp;
if (item_keybinding)
{
keybinding = g_strconcat (item_keybinding, KEYBINDING_SEPARATOR, NULL);
g_free (item_keybinding);
}
else
keybinding = g_strdup (KEYBINDING_SEPARATOR);
if (full_keybinding)
{
temp = g_strconcat (keybinding, full_keybinding,
KEYBINDING_SEPARATOR, NULL);
g_free (full_keybinding);
}
else
temp = g_strconcat (keybinding, KEYBINDING_SEPARATOR, NULL);
g_free (keybinding);
keybinding = temp;
if (accelerator)
{
temp = g_strconcat (keybinding, accelerator, NULL);
g_free (accelerator);
g_free (keybinding);
keybinding = temp;
}
}
return keybinding;
}
static void
atk_action_interface_init (AtkActionIface *iface)
{
iface->do_action = gtk_menu_item_accessible_do_action;
iface->get_n_actions = gtk_menu_item_accessible_get_n_actions;
iface->get_name = gtk_menu_item_accessible_action_get_name;
iface->get_localized_name = gtk_menu_item_accessible_action_get_localized_name;
iface->get_description = gtk_menu_item_accessible_action_get_description;
iface->get_keybinding = gtk_menu_item_accessible_get_keybinding;
}
static void
menu_item_selection (GtkMenuItem *item,
gboolean selected)
{
AtkObject *obj, *parent;
gint i;
obj = gtk_widget_get_accessible (GTK_WIDGET (item));
GTK_MENU_ITEM_ACCESSIBLE (obj)->priv->selected = selected;
atk_object_notify_state_change (obj, ATK_STATE_SELECTED, selected);
for (i = 0; i < atk_object_get_n_accessible_children (obj); i++)
{
AtkObject *child;
child = atk_object_ref_accessible_child (obj, i);
atk_object_notify_state_change (child, ATK_STATE_SHOWING, selected);
g_object_unref (child);
}
parent = atk_object_get_parent (obj);
g_signal_emit_by_name (parent, "selection-changed");
}
static gboolean
gtk_menu_item_accessible_add_selection (AtkSelection *selection,
gint i)
{
GtkMenuShell *shell;
GList *kids;
guint length;
GtkWidget *widget;
GtkWidget *menu;
GtkWidget *child;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
return FALSE;
menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
if (menu == NULL)
return FALSE;
shell = GTK_MENU_SHELL (menu);
kids = gtk_container_get_children (GTK_CONTAINER (shell));
length = g_list_length (kids);
if (i < 0 || i > length)
{
g_list_free (kids);
return FALSE;
}
child = g_list_nth_data (kids, i);
g_list_free (kids);
g_return_val_if_fail (GTK_IS_MENU_ITEM (child), FALSE);
gtk_menu_shell_select_item (shell, GTK_WIDGET (child));
return TRUE;
}
static gboolean
gtk_menu_item_accessible_clear_selection (AtkSelection *selection)
{
GtkWidget *widget;
GtkWidget *menu;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
return FALSE;
menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
if (menu == NULL)
return FALSE;
gtk_menu_shell_deselect (GTK_MENU_SHELL (menu));
return TRUE;
}
static AtkObject *
gtk_menu_item_accessible_ref_selection (AtkSelection *selection,
gint i)
{
GtkMenuShell *shell;
AtkObject *obj;
GtkWidget *widget;
GtkWidget *menu;
GtkWidget *item;
if (i != 0)
return NULL;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
return NULL;
menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
if (menu == NULL)
return NULL;
shell = GTK_MENU_SHELL (menu);
item = gtk_menu_shell_get_selected_item (shell);
if (item != NULL)
{
obj = gtk_widget_get_accessible (item);
g_object_ref (obj);
return obj;
}
return NULL;
}
static gint
gtk_menu_item_accessible_get_selection_count (AtkSelection *selection)
{
GtkMenuShell *shell;
GtkWidget *widget;
GtkWidget *menu;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
return 0;
menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
if (menu == NULL)
return 0;
shell = GTK_MENU_SHELL (menu);
if (gtk_menu_shell_get_selected_item (shell) != NULL)
return 1;
return 0;
}
static gboolean
gtk_menu_item_accessible_is_child_selected (AtkSelection *selection,
gint i)
{
GtkMenuShell *shell;
gint j;
GtkWidget *widget;
GtkWidget *menu;
GtkWidget *item;
GList *kids;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
return FALSE;
menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
if (menu == NULL)
return FALSE;
shell = GTK_MENU_SHELL (menu);
item = gtk_menu_shell_get_selected_item (shell);
if (item == NULL)
return FALSE;
kids = gtk_container_get_children (GTK_CONTAINER (shell));
j = g_list_index (kids, item);
g_list_free (kids);
return j==i;
}
static gboolean
gtk_menu_item_accessible_remove_selection (AtkSelection *selection,
gint i)
{
GtkMenuShell *shell;
GtkWidget *widget;
GtkWidget *menu;
GtkWidget *item;
if (i != 0)
return FALSE;
widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
if (widget == NULL)
return FALSE;
menu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
if (menu == NULL)
return FALSE;
shell = GTK_MENU_SHELL (menu);
item = gtk_menu_shell_get_selected_item (shell);
if (item && gtk_menu_item_get_submenu (GTK_MENU_ITEM (item)))
gtk_menu_shell_deselect (shell);
return TRUE;
}
static void
atk_selection_interface_init (AtkSelectionIface *iface)
{
iface->add_selection = gtk_menu_item_accessible_add_selection;
iface->clear_selection = gtk_menu_item_accessible_clear_selection;
iface->ref_selection = gtk_menu_item_accessible_ref_selection;
iface->get_selection_count = gtk_menu_item_accessible_get_selection_count;
iface->is_child_selected = gtk_menu_item_accessible_is_child_selected;
iface->remove_selection = gtk_menu_item_accessible_remove_selection;
}
static gint
menu_item_insert_gtk (GtkMenuShell *shell,
GtkWidget *widget,
gint position)
{
GtkWidget *parent_widget;
g_return_val_if_fail (GTK_IS_MENU (shell), 1);
parent_widget = gtk_menu_get_attach_widget (GTK_MENU (shell));
if (GTK_IS_MENU_ITEM (parent_widget))
GTK_CONTAINER_ACCESSIBLE_CLASS (gtk_menu_item_accessible_parent_class)->add_gtk (GTK_CONTAINER (shell), widget, gtk_widget_get_accessible (parent_widget));
return 1;
}
static gint
menu_item_remove_gtk (GtkContainer *container,
GtkWidget *widget)
{
GtkWidget *parent_widget;
g_return_val_if_fail (GTK_IS_MENU (container), 1);
parent_widget = gtk_menu_get_attach_widget (GTK_MENU (container));
if (GTK_IS_MENU_ITEM (parent_widget))
{
GTK_CONTAINER_ACCESSIBLE_CLASS (gtk_menu_item_accessible_parent_class)->remove_gtk (container, widget, gtk_widget_get_accessible (parent_widget));
}
return 1;
}
static void
menu_item_select (GtkMenuItem *item)
{
menu_item_selection (item, TRUE);
}
static void
menu_item_deselect (GtkMenuItem *item)
{
menu_item_selection (item, FALSE);
}
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