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-rw-r--r--calendar/cal-factory.c272
1 files changed, 272 insertions, 0 deletions
diff --git a/calendar/cal-factory.c b/calendar/cal-factory.c
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+/* GNOME 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-factory.h"
+
+
+
+/* Private part of the CalFactory structure */
+typedef struct {
+ /* Hash table from canonized uris to loaded calendars */
+ GHashTable *calendars;
+} 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_GNOME_Calendar_CalFactory__vepv cal_factory_vepv;
+
+static GnomeObjectClass *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 (gnome_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.GNOME_Unknown_epv = gnome_object_get_epv ();
+ cal_factory_vepv.GNOME_Calendar_CalFactory_epv = cal_factory_get_epv ();
+}
+
+/* Class initialization function for the calendar factory */
+static void
+cal_factory_class_init (CalFactoryClass *class)
+{
+ GtkObjectClass *parent_class;
+
+ object_class = (GtkObjectClass *) class;
+
+ parent_class = gtk_type_class (gnome_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->calendars = g_hash_table_new (g_str_hash, g_str_equal);
+}
+
+/* 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_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,
+ GNOME_Calendar_Listener listener,
+ CORBA_Environment *ev)
+{
+ CalFactory *factory;
+ CalFactoryPrivate *priv;
+
+ factory = CAL_FACTORY (gnome_object_from_servant (servant));
+ priv = factory->priv;
+
+ cal_factory_load (factory, uri, listener);
+}
+
+/* CalFactory::create method */
+static GNOME_Calendar_Cal
+CalFactory_create (PortableServer_Servant servant,
+ CORBA_char *uri,
+ CORBA_Environment *ev)
+{
+ CalFactory *factory;
+ CalFactoryPrivate *priv;
+
+ factory = CAL_FACTORY (gnome_object_from_servant (servant));
+ priv = factory->priv;
+
+ return cal_factory_create (factory, uri);
+}
+
+POA_GNOME_Calendar_CalFactory__epv *
+cal_factory_get_epv (void)
+{
+ POA_GNOME_Calendar_CalFactory__epv *epv;
+
+ epv = g_new0 (POA_GNOME_Calendar_CalFactory__epv, 1);
+ epv->load = CalFactory_load;
+ epv->create = CalFactory_create;
+
+ return epv;
+}
+
+
+
+/* Returns whether a CORBA object is nil */
+static gboolean
+corba_object_is_nil (CORBA_Object object)
+{
+ CORBA_Environment ev;
+ gboolean retval;
+
+ CORBA_exception_init (&ev);
+ retval = CORBA_Object_is_nil (object, &ev);
+ CORBA_exception_free (&ev);
+
+ return retval;
+}
+
+/**
+ * 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, GNOME_Calendar_CalFactory corba_factory)
+{
+ g_return_val_if_fail (factory != NULL, NULL);
+ g_return_val_if_fail (IS_CAL_FACTORY (factory), NULL);
+ g_return_val_if_fail (!corba_object_is_nil (corba_factory), NULL);
+
+ gnome_object_construct (GNOME_OBJECT (factory), corba_factory);
+ return factory;
+}
+
+/**
+ * cal_factory_corba_object_create:
+ * @object: #GnomeObject 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.
+ **/
+GNOME_Calendar_CalFactory
+cal_factory_corba_object_create (GnomeObject *object)
+{
+ POA_GNOME_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_GNOME_Calendar_CalFactory *) g_new0 (GnomeObjectServant, 1);
+ servant->vepv = &cal_factory_vepv;
+
+ CORBA_exception_init (&ev);
+ POA_GNOME_Calendar_CalFactory__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_Calendar_CalFactory) gnome_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;
+ GNOME_Calendar_CalFactory corba_factory;
+
+ factory = gtk_type_new (CAL_FACTORY_TYPE);
+ corba_factory = cal_factory_corba_object_create (GNOME_OBJECT (factory));
+ if (corba_object_is_nil (corba_factory)) {
+ gtk_object_destroy (factory);
+ return NULL;
+ }
+
+ return cal_factory_construct (factory, corba_factory);
+}