forked from AuroraMiddleware/gtk
308 lines
8.7 KiB
C
308 lines
8.7 KiB
C
/* GAIL - The GNOME Accessibility Implementation Library
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* Copyright 2002, 2003 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 "gtksubmenuitemaccessible.h"
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static gint menu_item_add_gtk (GtkContainer *container,
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GtkWidget *widget);
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static gint menu_item_remove_gtk (GtkContainer *container,
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GtkWidget *widget);
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static void atk_selection_interface_init (AtkSelectionIface *iface);
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G_DEFINE_TYPE_WITH_CODE (GtkSubmenuItemAccessible, _gtk_submenu_item_accessible, GTK_TYPE_MENU_ITEM_ACCESSIBLE,
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G_IMPLEMENT_INTERFACE (ATK_TYPE_SELECTION, atk_selection_interface_init))
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static void
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gtk_submenu_item_accessible_initialize (AtkObject *obj,
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gpointer data)
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{
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GtkWidget *submenu;
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ATK_OBJECT_CLASS (_gtk_submenu_item_accessible_parent_class)->initialize (obj, data);
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submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (data));
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if (submenu)
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{
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g_signal_connect (submenu, "add", G_CALLBACK (menu_item_add_gtk), NULL);
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g_signal_connect (submenu, "remove", G_CALLBACK (menu_item_remove_gtk), NULL);
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}
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}
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static void
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_gtk_submenu_item_accessible_class_init (GtkSubmenuItemAccessibleClass *klass)
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{
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AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
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class->initialize = gtk_submenu_item_accessible_initialize;
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}
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static void
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_gtk_submenu_item_accessible_init (GtkSubmenuItemAccessible *item)
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{
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}
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static gboolean
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gtk_submenu_item_accessible_add_selection (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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guint length;
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GtkWidget *widget;
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GtkWidget *submenu;
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GtkWidget *child;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
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if (widget == NULL)
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return FALSE;
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submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
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if (submenu == NULL)
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return FALSE;
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shell = GTK_MENU_SHELL (submenu);
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kids = gtk_container_get_children (GTK_CONTAINER (shell));
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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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child = 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 (child), FALSE);
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gtk_menu_shell_select_item (shell, GTK_WIDGET (child));
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return TRUE;
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}
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static gboolean
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gtk_submenu_item_accessible_clear_selection (AtkSelection *selection)
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{
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GtkWidget *widget;
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GtkWidget *submenu;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
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if (widget == NULL)
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return FALSE;
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submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
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if (submenu == NULL)
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return FALSE;
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gtk_menu_shell_deselect (GTK_MENU_SHELL (submenu));
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return TRUE;
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}
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static AtkObject *
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gtk_submenu_item_accessible_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 *submenu;
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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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return NULL;
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submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
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if (submenu == NULL)
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return NULL;
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shell = GTK_MENU_SHELL (submenu);
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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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return NULL;
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}
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static gint
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gtk_submenu_item_accessible_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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GtkWidget *submenu;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
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if (widget == NULL)
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return 0;
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submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
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if (submenu == NULL)
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return 0;
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shell = GTK_MENU_SHELL (submenu);
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if (gtk_menu_shell_get_selected_item (shell) != NULL)
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return 1;
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return 0;
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}
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static gboolean
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gtk_submenu_item_accessible_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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gint j;
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GtkWidget *widget;
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GtkWidget *submenu;
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GtkWidget *item;
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GList *kids;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (selection));
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if (widget == NULL)
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return FALSE;
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submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
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if (submenu == NULL)
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return FALSE;
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shell = GTK_MENU_SHELL (submenu);
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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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gtk_submenu_item_accessible_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 *submenu;
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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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return FALSE;
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submenu = gtk_menu_item_get_submenu (GTK_MENU_ITEM (widget));
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if (submenu == NULL)
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return FALSE;
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shell = GTK_MENU_SHELL (submenu);
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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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gtk_menu_shell_deselect (shell);
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return TRUE;
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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 = gtk_submenu_item_accessible_add_selection;
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iface->clear_selection = gtk_submenu_item_accessible_clear_selection;
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iface->ref_selection = gtk_submenu_item_accessible_ref_selection;
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iface->get_selection_count = gtk_submenu_item_accessible_get_selection_count;
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iface->is_child_selected = gtk_submenu_item_accessible_is_child_selected;
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iface->remove_selection = gtk_submenu_item_accessible_remove_selection;
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}
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static gint
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menu_item_add_gtk (GtkContainer *container,
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GtkWidget *widget)
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{
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GtkWidget *parent_widget;
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AtkObject *atk_parent;
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AtkObject *atk_child;
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GtkContainerAccessible *container_accessible;
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gint index;
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g_return_val_if_fail (GTK_IS_MENU (container), 1);
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parent_widget = gtk_menu_get_attach_widget (GTK_MENU (container));
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if (GTK_IS_MENU_ITEM (parent_widget))
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{
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atk_parent = gtk_widget_get_accessible (parent_widget);
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atk_child = gtk_widget_get_accessible (widget);
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g_object_notify (G_OBJECT (atk_child), "accessible-parent");
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container_accessible = GTK_CONTAINER_ACCESSIBLE (atk_parent);
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g_list_free (container_accessible->children);
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container_accessible->children = gtk_container_get_children (container);
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index = g_list_index (container_accessible->children, widget);
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g_signal_emit_by_name (atk_parent, "children-changed::add",
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index, atk_child, NULL);
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}
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return 1;
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}
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static gint
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menu_item_remove_gtk (GtkContainer *container,
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GtkWidget *widget)
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{
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GtkWidget *parent_widget;
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AtkObject *atk_parent;
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AtkObject *atk_child;
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GtkContainerAccessible *container_accessible;
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gint index;
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gint list_length;
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g_return_val_if_fail (GTK_IS_MENU (container), 1);
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parent_widget = gtk_menu_get_attach_widget (GTK_MENU (container));
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if (GTK_IS_MENU_ITEM (parent_widget))
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{
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atk_parent = gtk_widget_get_accessible (parent_widget);
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atk_child = gtk_widget_get_accessible (widget);
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g_object_notify (G_OBJECT (atk_child), "accessible-parent");
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container_accessible = GTK_CONTAINER_ACCESSIBLE (atk_parent);
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index = g_list_index (container_accessible->children, widget);
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list_length = g_list_length (container_accessible->children);
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g_list_free (container_accessible->children);
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container_accessible->children = gtk_container_get_children (container);
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if (index >= 0 && index <= list_length)
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g_signal_emit_by_name (atk_parent, "children-changed::remove",
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index, atk_child, NULL);
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}
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return 1;
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}
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