[evolution-ews/gnome-2-28: 2/6] Add resolve_tzid function back

[Chenthill Palanisamy <pchen src gnome org>]

commit 2b0bfea96c67783a5c945cb78a96f7a92373cf3b
Author: Chenthill Palanisamy <pchenthill novell com>
Date:   Thu Aug 11 07:06:50 2011 +0530

    Add resolve_tzid function back

 src/calendar/e-cal-backend-ews.c |   18 +++++++++++++++++-
 1 files changed, 17 insertions(+), 1 deletions(-)
---
diff --git a/src/calendar/e-cal-backend-ews.c b/src/calendar/e-cal-backend-ews.c
index ca9b236..56d33d3 100644
--- a/src/calendar/e-cal-backend-ews.c
+++ b/src/calendar/e-cal-backend-ews.c
@@ -158,7 +158,7 @@ static ECalBackendClass *parent_class = NULL;
 static void ews_cal_sync_items_ready_cb (GObject *obj, GAsyncResult *res, gpointer user_data);
 static void ews_cal_component_get_item_id (ECalComponent *comp, gchar **itemid, gchar **changekey);
 static gboolean ews_start_sync	(gpointer data);
-
+static icaltimezone * resolve_tzid (const gchar *tzid, gpointer user_data);
 static void
 switch_offline (ECalBackendEws *cbews)
 {
@@ -2568,6 +2568,22 @@ exit:
 	e_data_cal_notify_objects_sent (cal, EDC_ER_CODE(error), NULL, calobj);
 }
 
+/* TODO Do not replicate this in every backend */
+static icaltimezone *
+resolve_tzid (const gchar *tzid, gpointer user_data)
+{
+	icaltimezone *zone;
+
+	zone = (!strcmp (tzid, "UTC"))
+		? icaltimezone_get_utc_timezone ()
+		: icaltimezone_get_builtin_timezone_from_tzid (tzid);
+
+	if (!zone)
+		zone = e_cal_backend_internal_get_timezone (E_CAL_BACKEND (user_data), tzid);
+
+	return zone;
+ }
+
 static void
 put_component_to_store (ECalBackendEws *cbews,
 			ECalComponent *comp)