[evolution] Bug #616561 - Don't check read-only calendars in the itip-formatter

[Milan Crha <mcrha src gnome org>]

commit 993d4910c16bc1f8cf1d0b2ad69f8b4ea324f7f7
Author: Tim Piessens <piessens icsense com>
Date:   Fri Nov 25 14:36:42 2011 +0100

    Bug #616561 - Don't check read-only calendars in the itip-formatter

 plugins/itip-formatter/itip-formatter.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/plugins/itip-formatter/itip-formatter.c b/plugins/itip-formatter/itip-formatter.c
index 0d80086..7a66508 100644
--- a/plugins/itip-formatter/itip-formatter.c
+++ b/plugins/itip-formatter/itip-formatter.c
@@ -1009,6 +1009,13 @@ find_cal_opened_cb (GObject *source_object,
 
 	g_return_if_fail (E_IS_CAL_CLIENT (client));
 
+	/* Do not process read-only calendars */
+	if (e_client_is_readonly (client)) {
+		g_object_unref (client);
+		decrease_find_data (fd);
+		return;
+	}
+
 	cal_client = E_CAL_CLIENT (client);
 	source_type = e_cal_client_get_source_type (cal_client);