[empathy] contact-chooser: keep a ref on the TpContact we requested

[Guillaume Desmottes <gdesmott src gnome org>]

commit 0c03c67b2c8cd5190c7c1920ba315ebbfa2285c7
Author: Guillaume Desmottes <guillaume desmottes collabora co uk>
Date:   Thu Jan 5 17:12:16 2012 +0100

    contact-chooser: keep a ref on the TpContact we requested
    
    Kinda hacky but that's the best we can do without major changes in Folks.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=666531

 libempathy-gtk/empathy-contact-chooser.c |   22 ++++++++++++++++++++--
 1 files changed, 20 insertions(+), 2 deletions(-)
---
diff --git a/libempathy-gtk/empathy-contact-chooser.c b/libempathy-gtk/empathy-contact-chooser.c
index 97ce7d9..ccdd5fa 100644
--- a/libempathy-gtk/empathy-contact-chooser.c
+++ b/libempathy-gtk/empathy-contact-chooser.c
@@ -51,6 +51,9 @@ struct _EmpathyContactChooserPrivate
 
   EmpathyContactChooserFilterFunc filter_func;
   gpointer filter_data;
+
+  /* list of reffed TpContact */
+  GList *tp_contacts;
 };
 
 struct _AddTemporaryIndividualCtx
@@ -104,6 +107,9 @@ contact_chooser_dispose (GObject *object)
 
   tp_clear_object (&self->priv->account_mgr);
 
+  g_list_free_full (self->priv->tp_contacts, g_object_unref);
+  self->priv->tp_contacts = NULL;
+
   G_OBJECT_CLASS (empathy_contact_chooser_parent_class)->dispose (
       object);
 }
@@ -212,6 +218,7 @@ get_contacts_cb (TpConnection *connection,
     (EmpathyContactChooser *) weak_object;
   AddTemporaryIndividualCtx *ctx = user_data;
   FolksIndividual *individual;
+  TpContact *contact;
 
   if (self->priv->add_temp_ctx != ctx)
     /* another request has been started */
@@ -220,12 +227,20 @@ get_contacts_cb (TpConnection *connection,
   if (n_contacts != 1)
     return;
 
-  individual =  empathy_create_individual_from_tp_contact (contacts[0]);
+  contact = contacts[0];
+
+  individual =  empathy_create_individual_from_tp_contact (contact);
   if (individual == NULL)
     return;
 
+  /* tp-glib will unref the TpContact once we return from this callback
+   * but folks expect us to keep a reference on the TpContact.
+   * Ideally folks shouldn't force us to do that: bgo #666580 */
+  self->priv->tp_contacts = g_list_prepend (self->priv->tp_contacts,
+      g_object_ref (contact));
+
   /* listen for updates to the capabilities */
-  tp_g_signal_connect_object (contacts[0], "notify::capabilities",
+  tp_g_signal_connect_object (contact, "notify::capabilities",
       G_CALLBACK (contact_capabilities_changed), self, 0);
 
   /* Pass ownership to the list */
@@ -435,6 +450,9 @@ empathy_contact_chooser_new (void)
       NULL);
 }
 
+/* Note that because of bgo #666580 the returned invidivdual is valid until
+ * @self is destroyed. To keep it around after that, the TpContact associated
+ * with the individual needs to be manually reffed. */
 FolksIndividual *
 empathy_contact_chooser_dup_selected (EmpathyContactChooser *self)
 {