[libgnome-volume-control] ui-device: Don't add off profiles

[Bastien Nocera <hadess src gnome org>]

commit ed0ec4240125ac9f0a6d7502aa29644d37b2eac2
Author: David Henningsson <david henningsson canonical com>
Date:   Thu Feb 14 08:22:14 2013 +0100

    ui-device: Don't add off profiles
    
    Right now, makes sure "Off" profiles are not added, because when selected,
    the item will disappear and there's no way to get it back (because it
    disappeared). In the long term, handling the "off" profile correctly
    would be better.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=693654

 gvc-mixer-ui-device.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/gvc-mixer-ui-device.c b/gvc-mixer-ui-device.c
index af84442..a108310 100644
--- a/gvc-mixer-ui-device.c
+++ b/gvc-mixer-ui-device.c
@@ -389,6 +389,11 @@ add_canonical_names_of_profiles (GvcMixerUIDevice *device,
 
                 g_free (canonical_name);
 
+                /* https://bugzilla.gnome.org/show_bug.cgi?id=693654
+                 * Don't add a profile that will make the UI device completely disappear */
+                if (p->n_sinks == 0 && p->n_sources == 0)
+                        continue;
+
                 g_debug ("Adding profile to combobox: '%s' - '%s'", p->profile, p->human_profile);
                 g_hash_table_insert (added_profiles, g_strdup (p->profile), p);
                 device->priv->profiles = g_list_append (device->priv->profiles, p);