/* Evolution calendar factory
*
* 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.h"
#include "cal-backend.h"
#include "cal-factory.h"
#include "job.h"
/* Private part of the CalFactory structure */
typedef struct {
/* Hash table from GnomeVFSURI structures to CalBackend objects */
GHashTable *backends;
} CalFactoryPrivate;
static void cal_factory_class_init (CalFactoryClass *class);
static void cal_factory_init (CalFactory *factory);
static void cal_factory_destroy (GtkObject *object);
static POA_Evolution_Calendar_CalFactory__vepv cal_factory_vepv;
static BonoboObjectClass *parent_class;
/**
* cal_factory_get_type:
* @void:
*
* Registers the #CalFactory class if necessary, and returns the type ID
* associated to it.
*
* Return value: The type ID of the #CalFactory class.
**/
GtkType
cal_factory_get_type (void)
{
static GtkType cal_factory_type = 0;
if (!cal_factory_type) {
static const GtkTypeInfo cal_factory_info = {
"CalFactory",
sizeof (CalFactory),
sizeof (CalFactoryClass),
(GtkClassInitFunc) cal_factory_class_init,
(GtkObjectInitFunc) cal_factory_init,
NULL, /* reserved_1 */
NULL, /* reserved_2 */
(GtkClassInitFunc) NULL
};
cal_factory_type = gtk_type_unique (bonobo_object_get_type (), &cal_factory_info);
}
return cal_factory_type;
}
/* CORBA class initialization function for the calendar factory */
static void
init_cal_factory_corba_class (void)
{
cal_factory_vepv.Bonobo_Unknown_epv = bonobo_object_get_epv ();
cal_factory_vepv.Evolution_Calendar_CalFactory_epv = cal_factory_get_epv ();
}
/* Class initialization function for the calendar factory */
static void
cal_factory_class_init (CalFactoryClass *class)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass *) class;
parent_class = gtk_type_class (bonobo_object_get_type ());
object_class->destroy = cal_factory_destroy;
init_cal_factory_corba_class ();
}
/* Object initialization function for the calendar factory */
static void
cal_factory_init (CalFactory *factory)
{
CalFactoryPrivate *priv;
priv = g_new0 (CalFactoryPrivate, 1);
factory->priv = priv;
priv->backends = g_hash_table_new (gnome_vfs_uri_hash, gnome_vfs_uri_hequal);
}
/* Frees a uri/backend pair from the backends hash table */
static void
free_backend (gpointer key, gpointer value, gpointer data)
{
GnomeVFSURI *uri;
CalBackend *backend;
uri = key;
backend = value;
gnome_vfs_uri_unref (uri);
gtk_object_unref (GTK_OBJECT (backend));
}
/* Destroy handler for the calendar */
static void
cal_factory_destroy (GtkObject *object)
{
CalFactory *factory;
CalFactoryPrivate *priv;
g_return_if_fail (object != NULL);
g_return_if_fail (IS_CAL_FACTORY (object));
factory = CAL_FACTORY (object);
priv = factory->priv;
g_hash_table_foreach (priv->backends, free_backend, NULL);
g_hash_table_destroy (priv->backends);
priv->backends = NULL;
g_free (priv);
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
/* CORBA servant implementation */
/* CalFactory::load method */
static void
CalFactory_load (PortableServer_Servant servant,
CORBA_char *uri,
Evolution_Calendar_Listener listener,
CORBA_Environment *ev)
{
CalFactory *factory;
CalFactoryPrivate *priv;
CORBA_Environment ev2;
gboolean result;
factory = CAL_FACTORY (bonobo_object_from_servant (servant));
priv = factory->priv;
CORBA_exception_init (&ev2);
result = CORBA_Object_is_nil (listener, &ev2);
if (ev2._major != CORBA_NO_EXCEPTION || result) {
CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
ex_Evolution_Calendar_CalFactory_NilListener,
NULL);
CORBA_exception_free (&ev2);
return;
}
CORBA_exception_free (&ev2);
cal_factory_load (factory, uri, listener);
}
/* CalFactory::create method */
static void
CalFactory_create (PortableServer_Servant servant,
CORBA_char *uri,
Evolution_Calendar_Listener listener,
CORBA_Environment *ev)
{
CalFactory *factory;
CalFactoryPrivate *priv;
factory = CAL_FACTORY (bonobo_object_from_servant (servant));
priv = factory->priv;
cal_factory_create (factory, uri, listener);
}
/**
* cal_factory_get_epv:
* @void:
*
* Creates an EPV for the CalFactory CORBA class.
*
* Return value: A newly-allocated EPV.
**/
POA_Evolution_Calendar_CalFactory__epv *
cal_factory_get_epv (void)
{
POA_Evolution_Calendar_CalFactory__epv *epv;
epv = g_new0 (POA_Evolution_Calendar_CalFactory__epv, 1);
epv->load = CalFactory_load;
epv->create = CalFactory_create;
return epv;
}
/* Loading and creating calendars */
/* Job data */
typedef struct {
CalFactory *factory;
char *uri;
Evolution_Calendar_Listener listener;
} LoadCreateJobData;
/* Looks up a calendar backend in a factory's hash table of uri->cal */
static CalBackend *
lookup_backend (CalFactory *factory, GnomeVFSURI *uri)
{
CalFactoryPrivate *priv;
CalBackend *backend;
priv = factory->priv;
backend = g_hash_table_lookup (priv->backends, uri);
return backend;
}
/* Loads a calendar backend and puts it in the factory's backend hash table */
static CalBackend *
load_backend (CalFactory *factory, GnomeVFSURI *uri, Evolution_Calendar_Listener listener)
{
CalFactoryPrivate *priv;
CalBackend *backend;
CalBackendLoadStatus status;
priv = factory->priv;
backend = cal_backend_new ();
if (!backend) {
g_message ("load_backend(): could not create the backend");
return NULL;
}
status = cal_backend_load (backend, uri);
switch (status) {
case CAL_BACKEND_LOAD_SUCCESS:
gnome_vfs_uri_ref (uri);
g_hash_table_insert (priv->backends, uri, backend);
return backend;
case CAL_BACKEND_LOAD_ERROR:
gtk_object_unref (GTK_OBJECT (backend));
return NULL;
default:
g_assert_not_reached ();
return NULL;
}
}
/* Adds a listener to a calendar backend by creating a calendar client interface
* object.
*/
static void
add_calendar_client (CalFactory *factory, CalBackend *backend, Evolution_Calendar_Listener listener)
{
Cal *cal;
CORBA_Environment ev;
cal = cal_new (backend, listener);
if (!cal) {
g_message ("add_calendar_client(): could not create the calendar client interface");
CORBA_exception_init (&ev);
Evolution_Calendar_Listener_cal_loaded (listener,
Evolution_Calendar_Listener_ERROR,
CORBA_OBJECT_NIL,
&ev);
if (ev._major != CORBA_NO_EXCEPTION)
g_message ("add_calendar_client(): could not notify the listener");
CORBA_exception_free (&ev);
return;
}
cal_backend_add_cal (backend, cal);
CORBA_exception_init (&ev);
Evolution_Calendar_Listener_cal_loaded (listener,
Evolution_Calendar_Listener_SUCCESS,
bonobo_object_corba_objref (BONOBO_OBJECT (cal)),
&ev);
if (ev._major != CORBA_NO_EXCEPTION) {
g_message ("add_calendar_client(): could not notify the listener");
cal_backend_remove_cal (backend, cal);
}
gtk_object_unref (GTK_OBJECT (cal));
}
/* Job handler for the load calendar command */
static void
load_fn (gpointer data)
{
LoadCreateJobData *jd;
CalFactory *factory;
GnomeVFSURI *uri;
Evolution_Calendar_Listener listener;
CalBackend *backend;
CORBA_Environment ev;
jd = data;
/* Look up the calendar */
uri = gnome_vfs_uri_new (jd->uri);
g_free (jd->uri);
factory = jd->factory;
listener = jd->listener;
g_free (jd);
backend = lookup_backend (factory, uri);
if (!backend)
backend = load_backend (factory, uri, listener);
gnome_vfs_uri_unref (uri);
if (!backend) {
g_message ("load_fn(): could not load the backend");
CORBA_exception_init (&ev);
Evolution_Calendar_Listener_cal_loaded (listener,
Evolution_Calendar_Listener_ERROR,
CORBA_OBJECT_NIL,
&ev);
if (ev._major != CORBA_NO_EXCEPTION)
g_message ("load_fn(): could not notify the listener");
CORBA_exception_free (&ev);
goto out;
}
add_calendar_client (factory, backend, listener);
out:
CORBA_exception_init (&ev);
CORBA_Object_release (listener, &ev);
if (ev._major != CORBA_NO_EXCEPTION)
g_message ("load_fn(): could not release the listener");
CORBA_exception_free (&ev);
}
/**
* cal_factory_construct:
* @factory: A calendar factory.
* @corba_factory: CORBA object for the calendar factory.
*
* Constructs a calendar factory by binding the corresponding CORBA object to
* it.
*
* Return value: The same object as the @factory argument.
**/
CalFactory *
cal_factory_construct (CalFactory *factory, Evolution_Calendar_CalFactory corba_factory)
{
g_return_val_if_fail (factory != NULL, NULL);
g_return_val_if_fail (IS_CAL_FACTORY (factory), NULL);
bonobo_object_construct (BONOBO_OBJECT (factory), corba_factory);
return factory;
}
/**
* cal_factory_corba_object_create:
* @object: #BonoboObject that will wrap the CORBA object.
*
* Creates and activates the CORBA object that is wrapped by the specified
* calendar factory @object.
*
* Return value: An activated object reference or #CORBA_OBJECT_NIL in case of
* failure.
**/
Evolution_Calendar_CalFactory
cal_factory_corba_object_create (BonoboObject *object)
{
POA_Evolution_Calendar_CalFactory *servant;
CORBA_Environment ev;
g_return_val_if_fail (object != NULL, CORBA_OBJECT_NIL);
g_return_val_if_fail (IS_CAL_FACTORY (object), CORBA_OBJECT_NIL);
servant = (POA_Evolution_Calendar_CalFactory *) g_new0 (BonoboObjectServant, 1);
servant->vepv = &cal_factory_vepv;
CORBA_exception_init (&ev);
POA_Evolution_Calendar_CalFactory__init ((PortableServer_Servant) servant, &ev);
if (ev._major != CORBA_NO_EXCEPTION) {
g_message ("cal_factory_corba_object_create(): could not init the servant");
g_free (servant);
CORBA_exception_free (&ev);
return CORBA_OBJECT_NIL;
}
CORBA_exception_free (&ev);
return (Evolution_Calendar_CalFactory) bonobo_object_activate_servant (object, servant);
}
/**
* cal_factory_new:
* @void:
*
* Creates a new #CalFactory object.
*
* Return value: A newly-created #CalFactory, or NULL if its corresponding CORBA
* object could not be created.
**/
CalFactory *
cal_factory_new (void)
{
CalFactory *factory;
CORBA_Environment ev;
Evolution_Calendar_CalFactory corba_factory;
gboolean retval;
factory = gtk_type_new (CAL_FACTORY_TYPE);
corba_factory = cal_factory_corba_object_create (BONOBO_OBJECT (factory));
CORBA_exception_init (&ev);
retval = CORBA_Object_is_nil (corba_factory, &ev);
if (ev._major != CORBA_NO_EXCEPTION || retval) {
g_message ("cal_factory_new(): could not create the CORBA factory");
gtk_object_unref (GTK_OBJECT (factory));
CORBA_exception_free (&ev);
return NULL;
}
CORBA_exception_free (&ev);
return cal_factory_construct (factory, corba_factory);
}
void
cal_factory_load (CalFactory *factory, const char *uri, Evolution_Calendar_Listener listener)
{
LoadCreateJobData *jd;
CORBA_Environment ev;
Evolution_Calendar_Listener listener_copy;
gboolean result;
CORBA_exception_init (&ev);
result = CORBA_Object_is_nil (listener, &ev);
if (ev._major != CORBA_NO_EXCEPTION) {
g_message ("cal_factory_load(): could not see if the listener was NIL");
CORBA_exception_free (&ev);
return;
}
CORBA_exception_free (&ev);
if (result) {
g_message ("cal_factory_load(): cannot operate on a NIL listener!");
return;
}
listener_copy = CORBA_Object_duplicate (listener, &ev);
if (ev._major != CORBA_NO_EXCEPTION) {
g_message ("cal_factory_load(): could not duplicate the listener");
CORBA_exception_free (&ev);
return;
}
CORBA_exception_free (&ev);
jd = g_new (LoadCreateJobData, 1);
jd->factory = factory;
jd->uri = g_strdup (uri);
jd->listener = listener_copy;
job_add (load_fn, jd);
}
void
cal_factory_create (CalFactory *factory, const char *uri, Evolution_Calendar_Listener listener)
{
/* FIXME */
}