/* GAIL - The GNOME Accessibility Implementation Library
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#undef GTK_DISABLE_DEPRECATED
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "gailoptionmenu.h"
static void gail_option_menu_class_init (GailOptionMenuClass *klass);
static void gail_option_menu_init (GailOptionMenu *menu);
static void gail_option_menu_real_initialize (AtkObject *obj,
gpointer data);
static gint gail_option_menu_get_n_children (AtkObject *obj);
static AtkObject* gail_option_menu_ref_child (AtkObject *obj,
gint i);
static gint gail_option_menu_real_add_gtk (GtkContainer *container,
GtkWidget *widget,
gpointer data);
static gint gail_option_menu_real_remove_gtk (GtkContainer *container,
GtkWidget *widget,
gpointer data);
static void atk_action_interface_init (AtkActionIface *iface);
static gboolean gail_option_menu_do_action (AtkAction *action,
gint i);
static gboolean idle_do_action (gpointer data);
static gint gail_option_menu_get_n_actions (AtkAction *action);
static const gchar* gail_option_menu_get_description (AtkAction *action,
gint i);
static const gchar* gail_option_menu_action_get_name (AtkAction *action,
gint i);
static gboolean gail_option_menu_set_description (AtkAction *action,
gint i,
const gchar *desc);
static void gail_option_menu_changed (GtkOptionMenu *option_menu);
G_DEFINE_TYPE_WITH_CODE (GailOptionMenu, gail_option_menu, GAIL_TYPE_BUTTON,
G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init))
static void
gail_option_menu_class_init (GailOptionMenuClass *klass)
{
AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
GailContainerClass *container_class;
container_class = (GailContainerClass *) klass;
class->get_n_children = gail_option_menu_get_n_children;
class->ref_child = gail_option_menu_ref_child;
class->initialize = gail_option_menu_real_initialize;
container_class->add_gtk = gail_option_menu_real_add_gtk;
container_class->remove_gtk = gail_option_menu_real_remove_gtk;
}
static void
gail_option_menu_init (GailOptionMenu *menu)
{
}
static void
gail_option_menu_real_initialize (AtkObject *obj,
gpointer data)
{
GtkOptionMenu *option_menu;
ATK_OBJECT_CLASS (gail_option_menu_parent_class)->initialize (obj, data);
option_menu = GTK_OPTION_MENU (data);
g_signal_connect (option_menu, "changed",
G_CALLBACK (gail_option_menu_changed), NULL);
obj->role = ATK_ROLE_COMBO_BOX;
}
static gint
gail_option_menu_get_n_children (AtkObject *obj)
{
GtkWidget *widget;
GtkOptionMenu *option_menu;
gint n_children = 0;
g_return_val_if_fail (GAIL_IS_OPTION_MENU (obj), 0);
widget = GTK_ACCESSIBLE (obj)->widget;
if (widget == NULL)
/*
* State is defunct
*/
return 0;
option_menu = GTK_OPTION_MENU (widget);
if (gtk_option_menu_get_menu (option_menu))
n_children++;
return n_children;;
}
static AtkObject*
gail_option_menu_ref_child (AtkObject *obj,
gint i)
{
GtkWidget *widget;
AtkObject *accessible;
g_return_val_if_fail (GAIL_IS_OPTION_MENU (obj), NULL);
widget = GTK_ACCESSIBLE (obj)->widget;
if (widget == NULL)
/*
* State is defunct
*/
return NULL;
if (i == 0)
accessible = g_object_ref (gtk_widget_get_accessible (gtk_option_menu_get_menu (GTK_OPTION_MENU (widget))));
else
accessible = NULL;
return accessible;
}
static gint
gail_option_menu_real_add_gtk (GtkContainer *container,
GtkWidget *widget,
gpointer data)
{
AtkObject* atk_parent = ATK_OBJECT (data);
AtkObject* atk_child = gtk_widget_get_accessible (widget);
GAIL_CONTAINER_CLASS (gail_option_menu_parent_class)->add_gtk (container, widget, data);
g_object_notify (G_OBJECT (atk_child), "accessible_parent");
g_signal_emit_by_name (atk_parent, "children_changed::add",
1, atk_child, NULL);
return 1;
}
static gint
gail_option_menu_real_remove_gtk (GtkContainer *container,
GtkWidget *widget,
gpointer data)
{
AtkPropertyValues values = { NULL };
AtkObject* atk_parent = ATK_OBJECT (data);
AtkObject *atk_child = gtk_widget_get_accessible (widget);
g_value_init (&values.old_value, G_TYPE_POINTER);
g_value_set_pointer (&values.old_value, atk_parent);
values.property_name = "accessible-parent";
g_signal_emit_by_name (atk_child,
"property_change::accessible-parent", &values, NULL);
g_signal_emit_by_name (atk_parent, "children_changed::remove",
1, atk_child, NULL);
return 1;
}
static void
atk_action_interface_init (AtkActionIface *iface)
{
iface->do_action = gail_option_menu_do_action;
iface->get_n_actions = gail_option_menu_get_n_actions;
iface->get_description = gail_option_menu_get_description;
iface->get_name = gail_option_menu_action_get_name;
iface->set_description = gail_option_menu_set_description;
}
static gboolean
gail_option_menu_do_action (AtkAction *action,
gint i)
{
GtkWidget *widget;
GailButton *button;
gboolean return_value = TRUE;
button = GAIL_BUTTON (action);
widget = GTK_ACCESSIBLE (action)->widget;
if (widget == NULL)
/*
* State is defunct
*/
return FALSE;
if (!gtk_widget_get_sensitive (widget) || !gtk_widget_get_visible (widget))
return FALSE;
switch (i)
{
case 0:
if (button->action_idle_handler)
return_value = FALSE;
else
button->action_idle_handler = gdk_threads_add_idle (idle_do_action, button);
break;
default:
return_value = FALSE;
break;
}
return return_value;
}
static gboolean
idle_do_action (gpointer data)
{
GtkButton *button;
GtkWidget *widget;
GdkEvent tmp_event;
GailButton *gail_button;
gail_button = GAIL_BUTTON (data);
gail_button->action_idle_handler = 0;
widget = GTK_ACCESSIBLE (gail_button)->widget;
if (widget == NULL /* State is defunct */ ||
!gtk_widget_get_sensitive (widget) || !gtk_widget_get_visible (widget))
return FALSE;
button = GTK_BUTTON (widget);
button->in_button = TRUE;
g_signal_emit_by_name (button, "enter");
/*
* Simulate a button press event. calling gtk_button_pressed() does
* not get the job done for a GtkOptionMenu.
*/
tmp_event.button.type = GDK_BUTTON_PRESS;
tmp_event.button.window = widget->window;
tmp_event.button.button = 1;
tmp_event.button.send_event = TRUE;
tmp_event.button.time = GDK_CURRENT_TIME;
tmp_event.button.axes = NULL;
gtk_widget_event (widget, &tmp_event);
return FALSE;
}
static gint
gail_option_menu_get_n_actions (AtkAction *action)
{
return 1;
}
static const gchar*
gail_option_menu_get_description (AtkAction *action,
gint i)
{
GailButton *button;
const gchar *return_value;
button = GAIL_BUTTON (action);
switch (i)
{
case 0:
return_value = button->press_description;
break;
default:
return_value = NULL;
break;
}
return return_value;
}
static const gchar*
gail_option_menu_action_get_name (AtkAction *action,
gint i)
{
const gchar *return_value;
switch (i)
{
case 0:
/*
* This action simulates a button press by simulating moving the
* mouse into the button followed by pressing the left mouse button.
*/
return_value = "press";
break;
default:
return_value = NULL;
break;
}
return return_value;
}
static gboolean
gail_option_menu_set_description (AtkAction *action,
gint i,
const gchar *desc)
{
GailButton *button;
gchar **value;
button = GAIL_BUTTON (action);
switch (i)
{
case 0:
value = &button->press_description;
break;
default:
value = NULL;
break;
}
if (value)
{
g_free (*value);
*value = g_strdup (desc);
return TRUE;
}
else
return FALSE;
}
static void
gail_option_menu_changed (GtkOptionMenu *option_menu)
{
GailOptionMenu *gail_option_menu;
gail_option_menu = GAIL_OPTION_MENU (gtk_widget_get_accessible (GTK_WIDGET (option_menu)));
g_object_notify (G_OBJECT (gail_option_menu), "accessible-name");
}