/* Evolution calendar listener
*
* Copyright (C) 2001 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 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.
*/
#include <config.h>
#include "cal-listener.h"
/* Private part of the CalListener structure */
struct CalListenerPrivate {
/* Notification functions and their closure data */
CalListenerCalOpenedFn cal_opened_fn;
CalListenerCalSetModeFn cal_set_mode_fn;
CalListenerObjUpdatedFn obj_updated_fn;
CalListenerObjRemovedFn obj_removed_fn;
CalListenerCategoriesChangedFn categories_changed_fn;
gpointer fn_data;
/* Whether notification is desired */
gboolean notify : 1;
};
static void cal_listener_class_init (CalListenerClass *class);
static void cal_listener_init (CalListener *listener);
static void cal_listener_destroy (GtkObject *object);
static void impl_notifyCalOpened (PortableServer_Servant servant,
GNOME_Evolution_Calendar_Listener_OpenStatus status,
GNOME_Evolution_Calendar_Cal cal,
CORBA_Environment *ev);
static void impl_notifyCalSetMode (PortableServer_Servant servant,
GNOME_Evolution_Calendar_Listener_SetModeStatus status,
GNOME_Evolution_Calendar_CalMode mode,
CORBA_Environment *ev);
static void impl_notifyObjUpdated (PortableServer_Servant servant,
GNOME_Evolution_Calendar_CalObjUID uid,
CORBA_Environment *ev);
static void impl_notifyObjRemoved (PortableServer_Servant servant,
GNOME_Evolution_Calendar_CalObjUID uid,
CORBA_Environment *ev);
static void impl_notifyCategoriesChanged (PortableServer_Servant servant,
const GNOME_Evolution_Calendar_StringSeq *categories,
CORBA_Environment *ev);
static BonoboXObjectClass *parent_class;
BONOBO_X_TYPE_FUNC_FULL (CalListener,
GNOME_Evolution_Calendar_Listener,
BONOBO_X_OBJECT_TYPE,
cal_listener);
/* 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_X_OBJECT_TYPE);
class->epv.notifyCalOpened = impl_notifyCalOpened;
class->epv.notifyCalSetMode = impl_notifyCalSetMode;
class->epv.notifyObjUpdated = impl_notifyObjUpdated;
class->epv.notifyObjRemoved = impl_notifyObjRemoved;
class->epv.notifyCategoriesChanged = impl_notifyCategoriesChanged;
object_class->destroy = cal_listener_destroy;
}
/* 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_opened_fn = NULL;
priv->obj_updated_fn = NULL;
priv->obj_removed_fn = NULL;
priv->categories_changed_fn = NULL;
priv->notify = TRUE;
}
/* Destroy handler for the calendar listener */
static void
cal_listener_destroy (GtkObject *object)
{
CalListener *listener;
CalListenerPrivate *priv;
g_return_if_fail (object != NULL);
g_return_if_fail (IS_CAL_LISTENER (object));
listener = CAL_LISTENER (object);
priv = listener->priv;
priv->cal_opened_fn = NULL;
priv->obj_updated_fn = NULL;
priv->obj_removed_fn = NULL;
priv->categories_changed_fn = NULL;
priv->fn_data = NULL;
priv->notify = FALSE;
g_free (priv);
listener->priv = NULL;
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
/* CORBA servant implementation */
/* ::notifyCalOpened method */
static void
impl_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->notify)
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);
g_assert (priv->cal_opened_fn != NULL);
(* priv->cal_opened_fn) (listener, status, cal, priv->fn_data);
}
/* ::notifyCalSetMode method */
static void
impl_notifyCalSetMode (PortableServer_Servant servant,
GNOME_Evolution_Calendar_Listener_SetModeStatus status,
GNOME_Evolution_Calendar_CalMode mode,
CORBA_Environment *ev)
{
CalListener *listener;
CalListenerPrivate *priv;
listener = CAL_LISTENER (bonobo_object_from_servant (servant));
priv = listener->priv;
if (!priv->notify)
return;
g_assert (priv->cal_set_mode_fn != NULL);
(* priv->cal_set_mode_fn) (listener, status, mode, priv->fn_data);
}
/* ::notifyObjUpdated method */
static void
impl_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;
if (!priv->notify)
return;
g_assert (priv->obj_updated_fn != NULL);
(* priv->obj_updated_fn) (listener, uid, priv->fn_data);
}
/* ::notifyObjRemoved method */
static void
impl_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;
if (!priv->notify)
return;
g_assert (priv->obj_removed_fn != NULL);
(* priv->obj_removed_fn) (listener, uid, priv->fn_data);
}
/* ::notifyCategoriesChanged method */
static void
impl_notifyCategoriesChanged (PortableServer_Servant servant,
const GNOME_Evolution_Calendar_StringSeq *categories,
CORBA_Environment *ev)
{
CalListener *listener;
CalListenerPrivate *priv;
listener = CAL_LISTENER (bonobo_object_from_servant (servant));
priv = listener->priv;
if (!priv->notify)
return;
g_assert (priv->categories_changed_fn != NULL);
(* priv->categories_changed_fn) (listener, categories, priv->fn_data);
}
/**
* cal_listener_construct:
* @listener: A 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.
* @categories_changed_fn: Function that will be called to notify that the list
* of categories that are present in the calendar's objects has changed.
* @fn_data: Closure data pointer that will be passed to the notification
* functions.
*
* Constructs a calendar listener by setting the callbacks that it will use for
* notification from the calendar server.
*
* Return value: the same object as the @listener argument.
**/
CalListener *
cal_listener_construct (CalListener *listener,
CalListenerCalOpenedFn cal_opened_fn,
CalListenerCalSetModeFn cal_set_mode_fn,
CalListenerObjUpdatedFn obj_updated_fn,
CalListenerObjRemovedFn obj_removed_fn,
CalListenerCategoriesChangedFn categories_changed_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 (cal_set_mode_fn != NULL, NULL);
g_return_val_if_fail (obj_updated_fn != NULL, NULL);
g_return_val_if_fail (obj_removed_fn != NULL, NULL);
g_return_val_if_fail (categories_changed_fn != NULL, NULL);
priv = listener->priv;
priv->cal_opened_fn = cal_opened_fn;
priv->cal_set_mode_fn = cal_set_mode_fn;
priv->obj_updated_fn = obj_updated_fn;
priv->obj_removed_fn = obj_removed_fn;
priv->categories_changed_fn = categories_changed_fn;
priv->fn_data = fn_data;
return listener;
}
/**
* 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.
* @categories_changed_fn: Function that will be called to notify that the list
* of categories that are present in the calendar's objects has changed.
* @fn_data: Closure data pointer that will be passed to the notification
* functions.
*
* Creates a new #CalListener object.
*
* Return value: A newly-created #CalListener object.
**/
CalListener *
cal_listener_new (CalListenerCalOpenedFn cal_opened_fn,
CalListenerCalSetModeFn cal_set_mode_fn,
CalListenerObjUpdatedFn obj_updated_fn,
CalListenerObjRemovedFn obj_removed_fn,
CalListenerCategoriesChangedFn categories_changed_fn,
gpointer fn_data)
{
CalListener *listener;
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);
g_return_val_if_fail (categories_changed_fn != NULL, NULL);
listener = gtk_type_new (CAL_LISTENER_TYPE);
return cal_listener_construct (listener,
cal_opened_fn,
cal_set_mode_fn,
obj_updated_fn,
obj_removed_fn,
categories_changed_fn,
fn_data);
}
/**
* cal_listener_stop_notification:
* @listener: A calendar listener.
*
* Informs a calendar listener that no further notification is desired. The
* callbacks specified when the listener was created will no longer be invoked
* after this function is called.
**/
void
cal_listener_stop_notification (CalListener *listener)
{
CalListenerPrivate *priv;
g_return_if_fail (listener != NULL);
g_return_if_fail (IS_CAL_LISTENER (listener));
priv = listener->priv;
g_return_if_fail (priv->notify != FALSE);
priv->notify = FALSE;
}
