/* Evolution calendar listener
*
* Copyright (C) 2000 Ximian, Inc.
* Copyright (C) 2000 Ximian, Inc.
*
* Author: Federico Mena-Quintero <federico@ximian.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*/
#include <config.h>
#include "cal-listener.h"
/* Private part of the CalListener structure */
struct _CalListenerPrivate {
/* The calendar this listener refers to */
GNOME_Evolution_Calendar_Cal cal;
/* Notification functions and their closure data */
CalListenerCalOpenedFn cal_opened_fn;
CalListenerObjUpdatedFn obj_updated_fn;
CalListenerObjRemovedFn obj_removed_fn;
gpointer fn_data;
};
static void cal_listener_class_init (CalListenerClass *class);
static void cal_listener_init (CalListener *listener);
static void cal_listener_destroy (GtkObject *object);
static POA_GNOME_Evolution_Calendar_Listener__vepv cal_listener_vepv;
static BonoboObjectClass *parent_class;
/**
* cal_listener_get_type:
* @void:
*
* Registers the #CalListener class if necessary, and returns the type ID
* associated to it.
*
* Return value: The type ID of the #CalListener class.
**/
GtkType
cal_listener_get_type (void)
{
static GtkType cal_listener_type = 0;
if (!cal_listener_type) {
static const GtkTypeInfo cal_listener_info = {
"CalListener",
sizeof (CalListener),
sizeof (CalListenerClass),
(GtkClassInitFunc) cal_listener_class_init,
(GtkObjectInitFunc) cal_listener_init,
NULL, /* reserved_1 */
NULL, /* reserved_2 */
(GtkClassInitFunc) NULL
};
cal_listener_type = gtk_type_unique (bonobo_object_get_type (), &cal_listener_info);
}
return cal_listener_type;
}
/* CORBA class initialization function for the calendar listener */
static void
init_cal_listener_corba_class (void)
{
cal_listener_vepv.Bonobo_Unknown_epv = bonobo_object_get_epv ();
cal_listener_vepv.GNOME_Evolution_Calendar_Listener_epv = cal_listener_get_epv ();
}
/* Class initialization function for the calendar listener */
static void
cal_listener_class_init (CalListenerClass *class)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass *) class;
parent_class = gtk_type_class (bonobo_object_get_type ());
object_class->destroy = cal_listener_destroy;
init_cal_listener_corba_class ();
}
/* Object initialization function for the calendar listener */
static void
cal_listener_init (CalListener *listener)
{
CalListenerPrivate *priv;
priv = g_new0 (CalListenerPrivate, 1);
listener->priv = priv;
priv->cal = CORBA_OBJECT_NIL;
priv->cal_opened_fn = NULL;
priv->obj_updated_fn = NULL;
priv->obj_removed_fn = NULL;
}
/* Destroy handler for the calendar listener */
static void
cal_listener_destroy (GtkObject *object)
{
CalListener *listener;
CalListenerPrivate *priv;
CORBA_Environment ev;
gboolean result;
g_return_if_fail (object != NULL);
g_return_if_fail (IS_CAL_LISTENER (object));
listener = CAL_LISTENER (object);
priv = listener->priv;
CORBA_exception_init (&ev);
result = CORBA_Object_is_nil (priv->cal, &ev);
if (ev._major != CORBA_NO_EXCEPTION)
g_message ("cal_listener_destroy(): could not see if the calendar was NIL");
else if (!result) {
CORBA_exception_free (&ev);
CORBA_exception_init (&ev);
CORBA_Object_release (priv->cal, &ev);
if (ev._major != CORBA_NO_EXCEPTION)
g_message ("cal_listener_destroy(): could not release the calendar");
priv->cal = CORBA_OBJECT_NIL;
}
CORBA_exception_free (&ev);
g_free (priv);
listener->priv = NULL;
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
/* CORBA servant implementation */
/* Listener::notifyCalOpened method */
static void
Listener_notifyCalOpened (PortableServer_Servant servant,
GNOME_Evolution_Calendar_Listener_OpenStatus status,
GNOME_Evolution_Calendar_Cal cal,
CORBA_Environment *ev)
{
CalListener *listener;
CalListenerPrivate *priv;
CORBA_Environment aev;
GNOME_Evolution_Calendar_Cal cal_copy;
listener = CAL_LISTENER (bonobo_object_from_servant (servant));
priv = listener->priv;
if (priv->cal != CORBA_OBJECT_NIL) {
g_message ("Listener_notifyCalOpened(): calendar was already open!");
return;
}
CORBA_exception_init (&aev);
cal_copy = CORBA_Object_duplicate (cal, &aev);
if (aev._major != CORBA_NO_EXCEPTION) {
g_message ("Listener_notifyCalOpened(): could not duplicate the calendar");
CORBA_exception_free (&aev);
return;
}
CORBA_exception_free (&aev);
priv->cal = cal_copy;
g_assert (priv->cal_opened_fn != NULL);
(* priv->cal_opened_fn) (listener, status, cal, priv->fn_data);
}
/* Listener::notifyObjUpdated method */
static void
Listener_notifyObjUpdated (PortableServer_Servant servant,
GNOME_Evolution_Calendar_CalObjUID uid,
CORBA_Environment *ev)
{
CalListener *listener;
CalListenerPrivate *priv;
listener = CAL_LISTENER (bonobo_object_from_servant (servant));
priv = listener->priv;
g_assert (priv->obj_updated_fn != NULL);
(* priv->obj_updated_fn) (listener, uid, priv->fn_data);
}
/* Listener::notifyObjRemoved method */
static void
Listener_notifyObjRemoved (PortableServer_Servant servant,
GNOME_Evolution_Calendar_CalObjUID uid,
CORBA_Environment *ev)
{
CalListener *listener;
CalListenerPrivate *priv;
listener = CAL_LISTENER (bonobo_object_from_servant (servant));
priv = listener->priv;
g_assert (priv->obj_removed_fn != NULL);
(* priv->obj_removed_fn) (listener, uid, priv->fn_data);
}
/**
* cal_listener_get_epv:
* @void:
*
* Creates an EPV for the Listener CORBA class.
*
* Return value: A newly-allocated EPV.
**/
POA_GNOME_Evolution_Calendar_Listener__epv *
cal_listener_get_epv (void)
{
POA_GNOME_Evolution_Calendar_Listener__epv *epv;
epv = g_new0 (POA_GNOME_Evolution_Calendar_Listener__epv, 1);
epv->notifyCalOpened = Listener_notifyCalOpened;
epv->notifyObjUpdated = Listener_notifyObjUpdated;
epv->notifyObjRemoved = Listener_notifyObjRemoved;
return epv;
}
/**
* cal_listener_construct:
* @listener: A calendar listener.
* @corba_listener: CORBA object for the calendar listener.
* @cal_opened_fn: Function that will be called to notify that a calendar was
* opened.
* @obj_updated_fn: Function that will be called to notify that an object in the
* calendar was updated.
* @obj_removed_fn: Function that will be called to notify that an object in the
* calendar was removed.
* @fn_data: Closure data pointer that will be passed to the notification
* functions.
*
* Constructs a calendar listener by binding the corresponding CORBA object to
* it.
*
* Return value: the same object as the @listener argument.
**/
CalListener *
cal_listener_construct (CalListener *listener,
GNOME_Evolution_Calendar_Listener corba_listener,
CalListenerCalOpenedFn cal_opened_fn,
CalListenerObjUpdatedFn obj_updated_fn,
CalListenerObjRemovedFn obj_removed_fn,
gpointer fn_data)
{
CalListenerPrivate *priv;
g_return_val_if_fail (listener != NULL, NULL);
g_return_val_if_fail (IS_CAL_LISTENER (listener), NULL);
g_return_val_if_fail (cal_opened_fn != NULL, NULL);
g_return_val_if_fail (obj_updated_fn != NULL, NULL);
g_return_val_if_fail (obj_removed_fn != NULL, NULL);
priv = listener->priv;
priv->cal_opened_fn = cal_opened_fn;
priv->obj_updated_fn = obj_updated_fn;
priv->obj_removed_fn = obj_removed_fn;
priv->fn_data = fn_data;
bonobo_object_construct (BONOBO_OBJECT (listener), corba_listener);
return listener;
}
/**
* cal_listener_corba_object_create:
* @object: #BonoboObject that will wrap the CORBA object.
*
* Creates and activates the CORBA object that is wrapped by the specified
* calendar listener @object.
*
* Return value: An activated object reference or #CORBA_OBJECT_NIL in case of
* failure.
**/
GNOME_Evolution_Calendar_Listener
cal_listener_corba_object_create (BonoboObject *object)
{
POA_GNOME_Evolution_Calendar_Listener *servant;
CORBA_Environment ev;
g_return_val_if_fail (object != NULL, CORBA_OBJECT_NIL);
g_return_val_if_fail (IS_CAL_LISTENER (object), CORBA_OBJECT_NIL);
servant = (POA_GNOME_Evolution_Calendar_Listener *) g_new0 (BonoboObjectServant, 1);
servant->vepv = &cal_listener_vepv;
CORBA_exception_init (&ev);
POA_GNOME_Evolution_Calendar_Listener__init ((PortableServer_Servant) servant, &ev);
if (ev._major != CORBA_NO_EXCEPTION) {
g_free (servant);
CORBA_exception_free (&ev);
return CORBA_OBJECT_NIL;
}
CORBA_exception_free (&ev);
return (GNOME_Evolution_Calendar_Listener) bonobo_object_activate_servant (object, servant);
}
/**
* cal_listener_new:
* @cal_opened_fn: Function that will be called to notify that a calendar was
* opened.
* @obj_updated_fn: Function that will be called to notify that an object in the
* calendar was updated.
* @obj_removed_fn: Function that will be called to notify that an object in the
* calendar was removed.
* @fn_data: Closure data pointer that will be passed to the notification
* functions.
*
* Creates a new #CalListener object.
*
* Return value: A newly-created #CalListener, or NULL if its corresponding
* CORBA object could not be created.
**/
CalListener *
cal_listener_new (CalListenerCalOpenedFn cal_opened_fn,
CalListenerObjUpdatedFn obj_updated_fn,
CalListenerObjRemovedFn obj_removed_fn,
gpointer fn_data)
{
CalListener *listener;
CORBA_Environment ev;
GNOME_Evolution_Calendar_Listener corba_listener;
gboolean result;
g_return_val_if_fail (cal_opened_fn != NULL, NULL);
g_return_val_if_fail (obj_updated_fn != NULL, NULL);
g_return_val_if_fail (obj_removed_fn != NULL, NULL);
listener = gtk_type_new (CAL_LISTENER_TYPE);
corba_listener = cal_listener_corba_object_create (BONOBO_OBJECT (listener));
CORBA_exception_init (&ev);
result = CORBA_Object_is_nil (corba_listener, &ev);
if (ev._major != CORBA_NO_EXCEPTION || result) {
g_message ("cal_listener_new(): could not create the CORBA listener");
bonobo_object_unref (BONOBO_OBJECT (listener));
CORBA_exception_free (&ev);
return NULL;
}
CORBA_exception_free (&ev);
return cal_listener_construct (listener,
corba_listener,
cal_opened_fn,
obj_updated_fn,
obj_removed_fn,
fn_data);
}