source: trunk/third/evolution/shell/evolution-config-control.c @ 18142

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* evolution-config-control.c
 *
 * Copyright (C) 2002 Ximian, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Author: Ettore Perazzoli
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "evolution-config-control.h"

#include <gal/util/e-util.h>

#include <gtk/gtksignal.h>

#include <bonobo/bonobo-control.h>
#include <bonobo/bonobo-event-source.h>


#define PARENT_TYPE BONOBO_X_OBJECT_TYPE
static BonoboXObjectClass *parent_class = NULL;

struct _EvolutionConfigControlPrivate {
        gboolean changed;
        BonoboControl *control;
        BonoboEventSource *event_source;
};

enum {
        APPLY,
        LAST_SIGNAL
};
static int signals[LAST_SIGNAL] = { 0 };


/* GtkObject methods.  */

static void
impl_destroy (GtkObject *object)
{
        EvolutionConfigControl *config_control;
        EvolutionConfigControlPrivate *priv;

        config_control = EVOLUTION_CONFIG_CONTROL (object);
        priv = config_control->priv;

        if (priv != NULL) {
                bonobo_object_unref (BONOBO_OBJECT (priv->control));
                bonobo_object_unref (BONOBO_OBJECT (priv->event_source));

                g_free (priv);
                config_control->priv = NULL;
        }

        (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}


/* Evolution::ConfigControl CORBA methods.  */

static void
impl_apply (PortableServer_Servant servant,
            CORBA_Environment *ev)
{
        EvolutionConfigControl *config_control;
        EvolutionConfigControlPrivate *priv;

        config_control = EVOLUTION_CONFIG_CONTROL (bonobo_object_from_servant (servant));
        priv = config_control->priv;

        gtk_signal_emit (GTK_OBJECT (config_control), signals[APPLY]);

        priv->changed = FALSE;
}

static Bonobo_Control
impl__get_control (PortableServer_Servant servant,
                   CORBA_Environment *ev)
{
        EvolutionConfigControl *config_control;
        EvolutionConfigControlPrivate *priv;

        config_control = EVOLUTION_CONFIG_CONTROL (bonobo_object_from_servant (servant));
        priv = config_control->priv;

        bonobo_object_ref (BONOBO_OBJECT (priv->control));

        return CORBA_Object_duplicate (bonobo_object_corba_objref (BONOBO_OBJECT (priv->control)), ev);
}

static Bonobo_EventSource
impl__get_eventSource (PortableServer_Servant servant,
                       CORBA_Environment *ev)
{
        EvolutionConfigControl *config_control;
        EvolutionConfigControlPrivate *priv;

        config_control = EVOLUTION_CONFIG_CONTROL (bonobo_object_from_servant (servant));
        priv = config_control->priv;

        bonobo_object_ref (BONOBO_OBJECT (priv->event_source));

        return CORBA_Object_duplicate (bonobo_object_corba_objref (BONOBO_OBJECT (priv->event_source)), ev);
}


static void
class_init (EvolutionConfigControlClass *class)
{
        POA_GNOME_Evolution_ConfigControl__epv *epv;
        GtkObjectClass *object_class;

        object_class = GTK_OBJECT_CLASS (class);
        object_class->destroy = impl_destroy;

        epv = &class->epv;
        epv->apply            = impl_apply;
        epv->_get_control     = impl__get_control;
        epv->_get_eventSource = impl__get_eventSource;

        signals[APPLY] = gtk_signal_new ("apply", GTK_RUN_FIRST,
                                         object_class->type,
                                         GTK_SIGNAL_OFFSET (EvolutionConfigControlClass, apply),
                                         gtk_marshal_NONE__NONE,
                                         GTK_TYPE_NONE, 0);

        gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL);

        parent_class = gtk_type_class (PARENT_TYPE);
}

static void
init (EvolutionConfigControl *config_control)
{
        EvolutionConfigControlPrivate *priv;

        priv = g_new (EvolutionConfigControlPrivate, 1);
        priv->changed      = FALSE;
        priv->control      = NULL;
        priv->event_source = bonobo_event_source_new ();

        config_control->priv = priv;
}


void
evolution_config_control_construct (EvolutionConfigControl *control,
                                    GtkWidget *widget)
{
        EvolutionConfigControlPrivate *priv;

        g_return_if_fail (EVOLUTION_IS_CONFIG_CONTROL (control));
        g_return_if_fail (GTK_IS_WIDGET (widget));

        priv = control->priv;

        priv->control = bonobo_control_new (widget);
}

EvolutionConfigControl *
evolution_config_control_new (GtkWidget *widget)
{
        EvolutionConfigControl *new;

        g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);

        new = gtk_type_new (evolution_config_control_get_type ());
        evolution_config_control_construct (new, widget);

        return new;
}

void
evolution_config_control_changed (EvolutionConfigControl *config_control)
{
        EvolutionConfigControlPrivate *priv;
        CORBA_Environment ev;
        CORBA_any *null_value;

        g_return_if_fail (EVOLUTION_IS_CONFIG_CONTROL (config_control));

        priv = config_control->priv;

        if (priv->changed)
                return;

        priv->changed = TRUE;

        CORBA_exception_init (&ev);

        null_value = CORBA_any__alloc ();
        null_value->_type = TC_null;

        bonobo_event_source_notify_listeners (priv->event_source, "changed", null_value, &ev);

        CORBA_free (null_value);

        CORBA_exception_free (&ev);
}


E_MAKE_X_TYPE (evolution_config_control, "EvolutionConfigControl", EvolutionConfigControl,
               class_init, init, PARENT_TYPE,
               POA_GNOME_Evolution_ConfigControl__init,
               GTK_STRUCT_OFFSET (EvolutionConfigControlClass, epv))