/* GNOME calendar client
*
* Copyright (C) 2000 Helix Code, Inc.
*
* Author: Federico Mena-Quintero <federico@helixcode.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-client.h"
#include "cal-listener.h"
/* Loading state for the calendar client */
typedef enum {
LOAD_STATE_NOT_LOADED,
LOAD_STATE_LOADING,
LOAD_STATE_LOADED
} LoadState;
/* Private part of the CalClient structure */
typedef struct {
/* Load state to avoid multiple loads */
LoadState load_state;
/* The calendar factory we are contacting */
GNOME_Calendar_CalFactory factory;
/* Our calendar listener */
CalListener *listener;
} CalClientPrivate;
/* Signal IDs */
enum {
CAL_LOADED,
LAST_SIGNAL
};
static void cal_client_class_init (CalClientClass *class);
static void cal_client_init (CalClient *client);
static void cal_client_destroy (GtkObject *object);
static guint cal_client_signals[LAST_SIGNAL];
static GtkObjectClass *parent_class;
/**
* cal_client_get_type:
* @void:
*
* Registers the #CalClient class if necessary, and returns the type ID assigned
* to it.
*
* Return value: The type ID of the #CalClient class.
**/
GtkType
cal_client_get_type (void)
{
static GtkType cal_client_type = 0;
if (!cal_client_type) {
static const GtkTypeInfo cal_client_info = {
"CalClient",
sizeof (CalClient),
sizeof (CalClientClass),
(GtkClassInitFunc) cal_client_class_init,
(GtkObjectInitFunc) cal_client_init,
NULL, /* reserved_1 */
NULL, /* reserved_2 */
(GtkClassInitFunc) NULL
};
cal_client_type = gtk_type_unique (GTK_TYPE_OBJECT, &cal_client_info);
}
return cal_client_type;
}
/* Class initialization function for the calendar client */
static void
cal_client_class_init (CalClientClass *class)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass *) class;
parent_class = gtk_type_class (GTK_TYPE_OBJECT);
cal_client_signals[CAL_LOADED] =
gtk_signal_new ("cal_loaded",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (CalClientClass, cal_loaded),
gtk_marshal_NONE__ENUM,
GTK_TYPE_NONE, 1,
GTK_TYPE_ENUM);
gtk_object_class_add_signals (object_class, cal_client_signals, LAST_SIGNAL);
object_class->destroy = cal_client_destroy;
}
/* Object initialization function for the calendar client */
static void
cal_client_init (CalClient *client)
{
CalClientPrivate *priv;
priv = g_new0 (CalClientPrivate, 1);
client->priv = priv;
priv->factory = CORBA_OBJECT_NIL;
priv->load_state = LOAD_STATE_NOT_LOADED;
}
/* Destroy handler for the calendar client */
static void
cal_client_destroy (GtkObject *object)
{
CalClient *client;
CalClientPrivate *priv;
g_return_if_fail (object != NULL);
g_return_if_fail (IS_CAL_CLIENT (object));
client = CAL_CLIENT (object);
priv = client->priv;
/* FIXME */
g_free (priv);
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
/**
* cal_client_construct:
* @client: A calendar client.
*
* Constructs a calendar client object by contacting the calendar factory of the
* calendar server.
*
* Return value: The same object as the @client argument, or NULL if the
* calendar factory could not be contacted.
**/
CalClient *
cal_client_construct (CalClient *client)
{
CalClientPrivate *priv;
GNOME_Calendar_CalFactory factory, factory_copy;
CORBA_Environment ev;
int result;
g_return_val_if_fail (client != NULL, NULL);
g_return_val_if_fail (IS_CAL_CLIENT (client), NULL);
priv = client->priv;
factory = (GNOME_Calendar_CalFactory) goad_server_activate_with_id (
NULL,
"calendar:cal-factory",
GOAD_ACTIVATE_REMOTE,
NULL);
CORBA_exception_init (&ev);
result = CORBA_Object_is_nil (factory, &ev);
if (ev._major != CORBA_NO_EXCEPTION) {
g_message ("cal_client_construct(): could not see if the factory is NIL");
CORBA_exception_free (&ev);
return NULL;
}
CORBA_exception_free (&ev);
if (result) {
g_message ("cal_client_construct(): could not contact Tlacuache, "
"the personal calendar server");
return NULL;
}
CORBA_exception_init (&ev);
factory_copy = CORBA_Object_duplicate (factory, &ev);
if (ev._major != CORBA_NO_EXCEPTION) {
g_message ("cal_client_construct(): could not duplicate the calendar factory");
CORBA_exception_free (&ev);
return NULL;
}
CORBA_exception_free (&ev);
priv->factory = factory_copy;
return client;
}
/**
* cal_client_new:
* @void:
*
* Creates a new calendar client. It should be initialized by calling
* cal_client_load_calendar() or cal_client_create_calendar().
*
* Return value: A newly-created calendar client, or NULL if the client could
* not be constructed because it could not contact the calendar server.
**/
CalClient *
cal_client_new (void)
{
CalClient *client;
client = gtk_type_new (CAL_CLIENT_TYPE);
if (!cal_client_construct (client)) {
g_message ("cal_client_new(): could not construct the calendar client");
gtk_object_unref (client);
return NULL;
}
return client;
}
/**
* cal_client_load_calendar:
* @client: A calendar client.
* @str_uri: URI of calendar to load.
*
* Makes a calendar client initiate a request to load a calendar. The calendar
* client will emit the "cal_loaded" signal when the response from the server is
* received.
*
* Return value: TRUE on success, FALSE on failure to issue the load request.
**/
gboolean
cal_client_load_calendar (CalClient *client, const char *str_uri)
{
CalClientPrivate *priv;
GNOME_Calendar_Listener corba_listener;
CORBA_Environment ev;
g_return_val_if_fail (client != NULL, FALSE);
g_return_val_if_fail (IS_CAL_CLIENT (client), FALSE);
priv = client->priv;
g_return_val_if_fail (priv->load_state == LOAD_STATE_NOT_LOADED, FALSE);
g_return_val_if_fail (str_uri != NULL, FALSE);
priv->listener = cal_listener_new ();
if (!priv->listener) {
g_message ("cal_client_load_calendar(): could not create the listener");
return FALSE;
}
corba_listener = (GNOME_Calendar_Listener) gnome_object_corba_objref (priv->listener);
CORBA_exception_init (&ev);
priv->load_state = LOAD_STATE_LOADING;
GNOME_Calendar_CalFactory_load (priv->factory, str_uri, corba_listener, &ev);
if (ev._major != CORBA_NO_EXCEPTION) {
g_message ("cal_client_load_calendar(): load request failed");
gtk_object_unref (priv->listener);
priv->listener = NULL;
priv->load_state = LOAD_STATE_NOT_LOADED;
CORBA_exception_free (&ev);
return FALSE;
}
CORBA_exception_free (&ev);
return TRUE;
}
