path: root/a11y/widgets/ea-combo-button.c

/*
 *
 * This program 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) version 3.
 *
 * This program 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 the program; if not, see <http://www.gnu.org/licenses/>  
 *
 *
 * Authors:
 *      Harry Lu  <harry.lu@sun.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#include <config.h>
#include "ea-combo-button.h"
#include <gtk/gtk.h>
#include <glib/gi18n.h>

static AtkObjectClass *parent_class;
static GType parent_type;

/*Action IDs */
enum {
    ACTIVATE_DEFAULT,
    POPUP_MENU,
    LAST_ACTION
};

/* Static functions */
static G_CONST_RETURN gchar*
ea_combo_button_get_name (AtkObject *a11y)
{
    GtkWidget *widget;
    GtkWidget *label;
    EComboButton *button;

    widget = GTK_ACCESSIBLE (a11y)->widget;
    if (!widget)
        return NULL;

    button = E_COMBO_BUTTON (widget);
    label = e_combo_button_get_label (button);
    if (label)
        return gtk_label_get_text (GTK_LABEL (label));

    return _("Combo Button");
}

/* Action interface */
static G_CONST_RETURN gchar *
ea_combo_button_action_get_name (AtkAction *action, gint i)
{
    switch (i)
    {
        case ACTIVATE_DEFAULT:
            return _("Activate Default");
        case POPUP_MENU:
            return _("Popup Menu");
        default:
            return NULL;
    }
}

static gboolean
ea_combo_button_do_action (AtkAction *action,
                       gint      i)
{
    GtkWidget *widget;
    EComboButton *button;

    widget = GTK_ACCESSIBLE (action)->widget;
    if (!widget || !GTK_WIDGET_IS_SENSITIVE (widget) || !GTK_WIDGET_VISIBLE (widget))
        return FALSE;

    button = E_COMBO_BUTTON (widget);

    switch (i)
    {
        case ACTIVATE_DEFAULT:
            g_signal_emit_by_name (button, "activate_default");
            return TRUE;
        case POPUP_MENU:
            return e_combo_button_popup_menu (button);
        default:
            return FALSE;
    }
}

static gint
ea_combo_button_get_n_actions (AtkAction *action)
{
  return LAST_ACTION;
}

static void
atk_action_interface_init (AtkActionIface *iface)
{
    g_return_if_fail (iface != NULL);

    iface->do_action = ea_combo_button_do_action;
    iface->get_n_actions = ea_combo_button_get_n_actions;
    iface->get_name = ea_combo_button_action_get_name;
}

static void
ea_combo_button_class_init (EaComboButtonClass *klass)
{
    AtkObjectClass *atk_object_class = ATK_OBJECT_CLASS (klass);

    parent_class  = g_type_class_ref (parent_type);

    atk_object_class->get_name = ea_combo_button_get_name;
}

static void
ea_combo_button_init (EaComboButton *a11y)
{
    /* Empty for now */
}

GType
ea_combo_button_get_type (void)
{
    static GType type = 0;

    if (!type) {
        AtkObjectFactory *factory;
        GTypeQuery query;

        GTypeInfo info = {
            sizeof (EaComboButtonClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) ea_combo_button_class_init,
            (GClassFinalizeFunc) NULL,
            NULL, /* class_data */
            sizeof (EaComboButton),
            0,
            (GInstanceInitFunc) ea_combo_button_init,
            NULL /* value_tree */
        };

        static const GInterfaceInfo atk_action_info = {
            (GInterfaceInitFunc) atk_action_interface_init,
            (GInterfaceFinalizeFunc) NULL,
            NULL
        };

        factory = atk_registry_get_factory (atk_get_default_registry (), GTK_TYPE_BUTTON);
        parent_type = atk_object_factory_get_accessible_type (factory);
        g_type_query (parent_type, &query);

        info.class_size = query.class_size;
        info.instance_size = query.instance_size;

        type = g_type_register_static (parent_type, "EaComboButton", &info, 0);
        g_type_add_interface_static (type, ATK_TYPE_ACTION,
                         &atk_action_info);

    }

    return type;
}

AtkObject *
ea_combo_button_new (GtkWidget *widget)
{
    EaComboButton *a11y;

    a11y = g_object_new (ea_combo_button_get_type (), NULL);

    GTK_ACCESSIBLE (a11y)->widget = GTK_WIDGET (widget);
    ATK_OBJECT (a11y)->role = ATK_ROLE_PUSH_BUTTON;

    return ATK_OBJECT (a11y);
}