The Wombat now keeps track of which categories are present in the objects

2001-07-31  Federico Mena Quintero  <federico@ximian.com>

	The Wombat now keeps track of which categories are present in the
	objects of a calendar.  It will notify the clients of changes in
	this set.  This is to make the category drop-down menus in the
	calendar/tasks views be always up to date.

	* idl/evolution-calendar.idl (Listener): Added a
	notifyCategoriesChanged() method.  The Wombat now keeps track of
	the categories within a calendar.

	* cal-client/cal-listener.[ch]: Switched it to use BonoboXObject.
	Also added the notifyCategoriesChanged implementation.

	* cal-client/cal-client.[ch]: Added a "categories_changed" signal.

	* pcs/cal-backend-file.c: Maintain a list of the live categories.
	(update_categories_from_comp): New function to maintain the set of
	live categories.
	(add_component): Update the set of categories.
	(remove_component): Likewise.
	(open_cal): Notify about changes in the set of categories.
	(create_cal): Likewise.
	(cal_backend_file_update_objects): Likewise.
	(cal_backend_file_remove_object): Likewise.
	(notify_categories_changed): New function to notify the clients
	about the current set of categories.

	* pcs/cal.c (cal_notify_categories_changed): New function.

svn path=/trunk/; revision=11536

1 files changed, 31 insertions, 0 deletions

diff --git a/calendar/pcs/cal.c b/calendar/pcs/cal.c
index f89d5c820f..cb92f391b5 100644
--- a/calendar/pcs/cal.c
+++ b/calendar/pcs/cal.c
@@ -674,6 +674,37 @@ cal_notify_remove (Cal *cal, const char *uid)
 }
 
 /**
+ * cal_notify_categories_changed:
+ * @cal: A calendar client interface.
+ * @categories: List of categories.
+ * 
+ * Notifies a listener attached to a calendar client interface object about the
+ * current set of categories in a calendar backend.
+ **/
+void
+cal_notify_categories_changed (Cal *cal, GNOME_Evolution_Calendar_StringSeq *categories)
+{
+	CalPrivate *priv;
+	CORBA_Environment ev;
+
+	g_return_if_fail (cal != NULL);
+	g_return_if_fail (IS_CAL (cal));
+	g_return_if_fail (categories != NULL);
+
+	priv = cal->priv;
+	g_return_if_fail (priv->listener != CORBA_OBJECT_NIL);
+
+	CORBA_exception_init (&ev);
+	GNOME_Evolution_Calendar_Listener_notifyCategoriesChanged (priv->listener, categories, &ev);
+
+	if (ev._major != CORBA_NO_EXCEPTION)
+		g_message ("cal_notify_categories_changed(): Could not notify the listener "
+			   "about the current set of categories");
+
+	CORBA_exception_free (&ev);
+}
+
+/**
  * cal_get_password:
  * @cal: A calendar client interface.
  * @prompt: The message to show to the user when asking for the password.