Implemented.

2000-02-17  Federico Mena Quintero  <federico@helixcode.com>

	* cal-client.c (cal_client_remove_object): Implemented.

	* cal.c (cal_notify_remove): Implemented.
	(Cal_remove_object): Implemented.
	(cal_get_epv): Fill in the remove_object field in the epv.

	* cal-backend.c (cal_backend_remove_object): Implemented.
	(notify_remove): New function to notify clients that an object was
	removed.

svn path=/trunk/; revision=1821

4 files changed, 98 insertions, 7 deletions

diff --git a/calendar/pcs/cal-backend.c b/calendar/pcs/cal-backend.c
index 1ce4b615c3..6b9894e098 100644
--- a/calendar/pcs/cal-backend.c
+++ b/calendar/pcs/cal-backend.c
@@ -856,6 +856,23 @@ notify_update (CalBackend *backend, const char *uid)
 	}
 }
 
+/* Notifies a backend's clients that an object was removed */
+static void
+notify_remove (CalBackend *backend, const char *uid)
+{
+	CalBackendPrivate *priv;
+	GList *l;
+
+	priv = backend->priv;
+
+	for (l = priv->clients; l; l = l->next) {
+		Cal *cal;
+
+		cal = CAL (l->data);
+		cal_notify_remove (cal, uid);
+	}
+}
+
 /**
  * cal_backend_update_object:
  * @backend: A calendar backend.
@@ -900,22 +917,45 @@ cal_backend_update_object (CalBackend *backend, const char *uid, const char *cal
 
 	add_object (backend, new_ico);
 
+	/* FIXME: do the notification asynchronously */
+
 	notify_update (backend, new_ico->uid);
 	return TRUE;
 }
 
-void
+/**
+ * cal_backend_remove_object:
+ * @backend: A calendar backend.
+ * @uid: Unique identifier of the object to remove.
+ * 
+ * Removes an object in a calendar backend.  The backend will notify all of its
+ * clients about the change.
+ * 
+ * Return value: TRUE on success, FALSE on being passed an UID for an object
+ * that does not exist in the backend.
+ **/
+gboolean
 cal_backend_remove_object (CalBackend *backend, const char *uid)
 {
 	CalBackendPrivate *priv;
+	iCalObject *ico;
 
-	g_return_if_fail (backend != NULL);
-	g_return_if_fail (IS_CAL_BACKEND (backend));
+	g_return_val_if_fail (backend != NULL, FALSE);
+	g_return_val_if_fail (IS_CAL_BACKEND (backend), FALSE);
 
 	priv = backend->priv;
-	g_return_if_fail (priv->loaded);
+	g_return_val_if_fail (priv->loaded, FALSE);
 	
-	g_return_if_fail (uid != NULL);
+	g_return_val_if_fail (uid != NULL, FALSE);
 
-	/* FIXME */
+	ico = lookup_object (backend, uid);
+	if (!ico)
+		return FALSE;
+
+	remove_object (backend, ico);
+
+	/* FIXME: do the notification asynchronously */
+
+	notify_remove (backend, uid);
+	return TRUE;
 }
diff --git a/calendar/pcs/cal-backend.h b/calendar/pcs/cal-backend.h
index fab83e4b82..66b1b8f5e3 100644
--- a/calendar/pcs/cal-backend.h
+++ b/calendar/pcs/cal-backend.h
@@ -78,7 +78,7 @@ GList *cal_backend_get_events_in_range (CalBackend *backend, time_t start, time_
 
 gboolean cal_backend_update_object (CalBackend *backend, const char *uid, const char *calobj);
 
-void cal_backend_remove_object (CalBackend *backend, const char *uid);
+gboolean cal_backend_remove_object (CalBackend *backend, const char *uid);
 
 
 
diff --git a/calendar/pcs/cal.c b/calendar/pcs/cal.c
index 158e4c493c..8263bfe491 100644
--- a/calendar/pcs/cal.c
+++ b/calendar/pcs/cal.c
@@ -325,6 +325,24 @@ Cal_update_object (PortableServer_Servant servant,
 				     NULL);
 }
 
+/* Cal::remove_object method */
+static void
+Cal_remove_object (PortableServer_Servant servant,
+		   const Evolution_Calendar_CalObjUID uid,
+		   CORBA_Environment *ev)
+{
+	Cal *cal;
+	CalPrivate *priv;
+
+	cal = CAL (bonobo_object_from_servant (servant));
+	priv = cal->priv;
+
+	if (!cal_backend_remove_object (priv->backend, uid))
+		CORBA_exception_set (ev, CORBA_USER_EXCEPTION,
+				     ex_Evolution_Calendar_Cal_NotFound,
+				     NULL);
+}
+
 /**
  * cal_get_epv:
  * @void:
@@ -344,6 +362,7 @@ cal_get_epv (void)
 	epv->get_uids = Cal_get_uids;
 	epv->get_events_in_range = Cal_get_events_in_range;
 	epv->update_object = Cal_update_object;
+	epv->remove_object = Cal_remove_object;
 
 	return epv;
 }
@@ -507,3 +526,34 @@ cal_notify_update (Cal *cal, const char *uid)
 
 	CORBA_exception_free (&ev);
 }
+
+/**
+ * cal_notify_remove:
+ * @cal: A calendar client interface.
+ * @uid: UID of object that was removed.
+ * 
+ * Notifies a listener attached to a calendar client interface object about a
+ * calendar object that was removed.
+ **/
+void
+cal_notify_remove (Cal *cal, const char *uid)
+{
+	CalPrivate *priv;
+	CORBA_Environment ev;
+
+	g_return_if_fail (cal != NULL);
+	g_return_if_fail (IS_CAL (cal));
+	g_return_if_fail (uid != NULL);
+
+	priv = cal->priv;
+	g_return_if_fail (priv->listener != CORBA_OBJECT_NIL);
+
+	CORBA_exception_init (&ev);
+	Evolution_Calendar_Listener_obj_removed (priv->listener, uid, &ev);
+
+	if (ev._major != CORBA_NO_EXCEPTION)
+		g_message ("cal_notify_remove(): could not notify the listener "
+			   "about a removed object");
+
+	CORBA_exception_free (&ev);
+}
diff --git a/calendar/pcs/cal.h b/calendar/pcs/cal.h
index 18f38f5655..508f36d56c 100644
--- a/calendar/pcs/cal.h
+++ b/calendar/pcs/cal.h
@@ -59,6 +59,7 @@ Evolution_Calendar_Cal cal_corba_object_create (BonoboObject *object);
 Cal *cal_new (CalBackend *backend, Evolution_Calendar_Listener listener);
 
 void cal_notify_update (Cal *cal, const char *uid);
+void cal_notify_remove (Cal *cal, const char *uid);
 
 POA_Evolution_Calendar_Cal__epv *cal_get_epv (void);