[empathy] roster-view: factor out contact_should_be_displayed()

[Guillaume Desmottes <gdesmott src gnome org>]

commit b6912edc8b09d2478065ff95c1b55561a41ff4c5
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Tue Jun 12 14:11:32 2012 +0200

    roster-view: factor out contact_should_be_displayed()

 libempathy-gtk/empathy-roster-view.c |   23 +++++++++++++++++------
 1 files changed, 17 insertions(+), 6 deletions(-)
---
diff --git a/libempathy-gtk/empathy-roster-view.c b/libempathy-gtk/empathy-roster-view.c
index e68315c..4f89e4e 100644
--- a/libempathy-gtk/empathy-roster-view.c
+++ b/libempathy-gtk/empathy-roster-view.c
@@ -703,19 +703,21 @@ remove_from_displayed (EmpathyRosterView *self,
     update_empty (self, TRUE);
 }
 
+/**
+ * check if @contact should be displayed according to @self's current status
+ * and without consideration for the state of @contact's groups.
+ */
 static gboolean
-filter_contact (EmpathyRosterView *self,
+contact_should_be_displayed (EmpathyRosterView *self,
     EmpathyRosterContact *contact)
 {
-  gboolean displayed;
-
   if (is_searching (self))
     {
       FolksIndividual *individual;
 
       individual = empathy_roster_contact_get_individual (contact);
 
-      displayed = empathy_individual_match_string (individual,
+      return empathy_individual_match_string (individual,
           empathy_live_search_get_text (self->priv->search),
           empathy_live_search_get_words (self->priv->search));
     }
@@ -723,13 +725,22 @@ filter_contact (EmpathyRosterView *self,
     {
       if (self->priv->show_offline)
         {
-          displayed = TRUE;
+          return TRUE;
         }
       else
         {
-          displayed = empathy_roster_contact_is_online (contact);
+          return empathy_roster_contact_is_online (contact);
         }
     }
+}
+
+static gboolean
+filter_contact (EmpathyRosterView *self,
+    EmpathyRosterContact *contact)
+{
+  gboolean displayed;
+
+  displayed = contact_should_be_displayed (self, contact);
 
   if (self->priv->show_groups)
     {