1 files changed, 54 insertions, 0 deletions
diff --git a/calendar/gui/itip-utils.c b/calendar/gui/itip-utils.c
index 440ae8ff46..02f346d0d8 100644
--- a/calendar/gui/itip-utils.c
+++ b/calendar/gui/itip-utils.c
@@ -2285,3 +2285,57 @@ is_icalcomp_valid (icalcomponent *icalcomp)
 
 	return TRUE;
 }
+
+gboolean
+itip_component_has_recipients (ECalComponent *comp)
+{
+	GSList *attendees = NULL;
+	ECalComponentAttendee *attendee;
+	ECalComponentOrganizer organizer;
+	gboolean res = FALSE;
+
+	g_return_val_if_fail (comp != NULL, FALSE);
+
+	e_cal_component_get_organizer (comp, &organizer);
+	e_cal_component_get_attendee_list (comp, &attendees);
+
+	if (!attendees) {
+		if (organizer.value && e_cal_component_get_vtype (comp) == E_CAL_COMPONENT_JOURNAL) {
+			/* memos store recipients in an extra property */
+			icalcomponent *icalcomp;
+			icalproperty *icalprop;
+
+			icalcomp = e_cal_component_get_icalcomponent (comp);
+
+			for (icalprop = icalcomponent_get_first_property (icalcomp, ICAL_X_PROPERTY);
+			     icalprop != NULL;
+			     icalprop = icalcomponent_get_next_property (icalcomp, ICAL_X_PROPERTY)) {
+				const gchar *x_name;
+
+				x_name = icalproperty_get_x_name (icalprop);
+
+				if (g_str_equal (x_name, "X-EVOLUTION-RECIPIENTS")) {
+					const gchar *str_recipients = icalproperty_get_x (icalprop);
+
+					res = str_recipients && g_ascii_strcasecmp (organizer.value, str_recipients) != 0;
+					break;
+				}
+			}
+		}
+
+		return res;
+	}
+
+	if (g_slist_length (attendees) > 1 || !e_cal_component_has_organizer (comp)) {
+		e_cal_component_free_attendee_list (attendees);
+		return TRUE;
+	}
+
+	attendee = attendees->data;
+
+	res = organizer.value && attendee && attendee->value && g_ascii_strcasecmp (organizer.value, attendee->value) != 0;
+
+	e_cal_component_free_attendee_list (attendees);
+
+	return res;
+}