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