[empathy] add empathy_contact_add_to_contact_list()

[Guillaume Desmottes <gdesmott src gnome org>]

commit b018a119c5a7f43eb5a407ed34d90681673c3f78
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Thu Nov 3 14:08:01 2011 +0100

    add empathy_contact_add_to_contact_list()
    
    https://bugzilla.gnome.org/show_bug.cgi?id=663327

 libempathy/empathy-contact.c |   38 ++++++++++++++++++++++++++++++++++++++
 libempathy/empathy-contact.h |    3 +++
 2 files changed, 41 insertions(+), 0 deletions(-)
---
diff --git a/libempathy/empathy-contact.c b/libempathy/empathy-contact.c
index 935afb5..cf46069 100644
--- a/libempathy/empathy-contact.c
+++ b/libempathy/empathy-contact.c
@@ -2071,3 +2071,41 @@ while_finish:
 
   return best_contact;
 }
+
+#define declare_contact_cb(name) \
+static void \
+contact_##name##_cb (GObject *source, \
+    GAsyncResult *result, \
+    gpointer user_data) \
+{ \
+  TpContact *contact = (TpContact *) source; \
+  GError *error = NULL; \
+  \
+  if (!tp_contact_##name##_finish (contact, result, &error)) \
+    { \
+      DEBUG ("Failed to ##name## on %s\n", \
+          tp_contact_get_identifier (contact)); \
+      g_error_free (error); \
+    } \
+}
+
+declare_contact_cb(request_subscription)
+declare_contact_cb(authorize_publication)
+declare_contact_cb(unblock)
+
+void
+empathy_contact_add_to_contact_list (EmpathyContact *self,
+    const gchar *message)
+{
+  EmpathyContactPriv *priv = GET_PRIV (self);
+
+  g_return_if_fail (priv->tp_contact != NULL);
+
+  tp_contact_request_subscription_async (priv->tp_contact, message,
+      contact_request_subscription_cb, NULL);
+
+  tp_contact_authorize_publication_async (priv->tp_contact,
+      contact_authorize_publication_cb, NULL);
+
+  tp_contact_unblock_async (priv->tp_contact, contact_unblock_cb, NULL);
+}
diff --git a/libempathy/empathy-contact.h b/libempathy/empathy-contact.h
index cb8f5a6..f15c8ad 100644
--- a/libempathy/empathy-contact.h
+++ b/libempathy/empathy-contact.h
@@ -138,6 +138,9 @@ EmpathyContact * empathy_contact_dup_best_for_action (
     FolksIndividual *individual,
     EmpathyActionType action_type);
 
+void empathy_contact_add_to_contact_list (EmpathyContact *self,
+    const gchar *message);
+
 G_END_DECLS
 
 #endif /* __EMPATHY_CONTACT_H__ */