Moved the calendar backend here. This is the actual calendar-handling

2000-01-18  Federico Mena Quintero  <federico@helixcode.com>

	* cal-backend.c cal-backend.h: Moved the calendar backend here.
	This is the actual calendar-handling object.
	(load_from_vobject): Moved over from calendar.c.  Modified to use
	a CalBackend instead of the old Calendar structure.
	(add_object): Likewise.

	* cal.c: Now the Cal object is just a calendar client interface
	object; we use it as a "viewport" onto a CalBackend.  This also
	lets us do correct resource management.

	* cal-common.h: New file with common forward declarations; we
	can't have circular dependencies between headers.

2000-01-18  Federico Mena Quintero  <federico@helixcode.com>

	* cal-factory.c (cal_factory_load): Queue a load job.
	(load_fn): Load job handler.  Lookup the calendar by URI, load it
	if it is not loaded, or just report it to the new listener if it is.

	* job.c job.h: New files with a simple job queue manager.

	* gnome-calendar.idl (Listener::cal_loaded): Do not return the
	whole calendar object string.  The client will be able to query
	the calendar for the events it needs.

	* cal-listener.c (Listener_cal_loaded): Ref the calendar GNOME
	object.  We unref it when the listener is destroyed.

2000-01-17  Federico Mena Quintero  <federico@helixcode.com>

	The files from the gncal directory of the gnome-pim module on CVS
	were moved here, to evolution/calendar, in preparation for the
	Evolution work.  The calendar is being split into a model/view
	architecture.  The model is a personal calendar server (PAS):  it
	provides storage, notification, and event generation; the
	views/controllers are the calendar user agents and things like
	Pilot synchronizers.

svn path=/trunk/; revision=1591

1 files changed, 24 insertions, 21 deletions

diff --git a/calendar/pcs/cal-factory.c b/calendar/pcs/cal-factory.c
index ac1043bc10..053baebe5c 100644
--- a/calendar/pcs/cal-factory.c
+++ b/calendar/pcs/cal-factory.c
@@ -187,20 +187,6 @@ cal_factory_get_epv (void)
 	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;
-}
-
 
 
 /* Loading and creating calendars */
@@ -288,7 +274,6 @@ cal_factory_construct (CalFactory *factory, GNOME_Calendar_CalFactory corba_fact
 {
 	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;
@@ -319,6 +304,7 @@ cal_factory_corba_object_create (GnomeObject *object)
 	CORBA_exception_init (&ev);
 	POA_GNOME_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;
@@ -341,15 +327,25 @@ CalFactory *
 cal_factory_new (void)
 {
 	CalFactory *factory;
+	CORBA_Environment ev;
 	GNOME_Calendar_CalFactory corba_factory;
+	gboolean retval;
 
 	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);
+	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 object");
+		gtk_object_unref (factory);
+		CORBA_exception_free (&ev);
 		return NULL;
 	}
 
+	CORBA_exception_free (&ev);
+
 	return cal_factory_construct (factory, corba_factory);
 }
 
@@ -358,18 +354,25 @@ cal_factory_load (CalFactory *factory, const char *uri, GNOME_Calendar_Listener
 {
 	LoadCreateJobData *jd;
 	CORBA_Environment ev;
+	GNOME_Calendar_Listener listener_copy;
 
 	CORBA_exception_init (&ev);
 
+	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 = CORBA_Object_duplicate (listener, &ev);
-	GNOME_Unknown_ref (jd->listener);
+	jd->listener = listener_copy;
 
 	job_add (load_fn, jd);
-
-	CORBA_exception_free (&ev);
 }
 
 void