[empathy] A contact doesn't support video if we have no camera

[Emilio Pozuelo Monfort <epm src gnome org>]

commit 11b3e6e941f3407de410308191cbe5088cc074e4
Author: Emilio Pozuelo Monfort <emilio pozuelo collabora co uk>
Date:   Tue May 10 13:14:05 2011 +0100

    A contact doesn't support video if we have no camera

 libempathy/empathy-contact.c |   15 +++++++++++++--
 1 files changed, 13 insertions(+), 2 deletions(-)
---
diff --git a/libempathy/empathy-contact.c b/libempathy/empathy-contact.c
index 16f1dc9..a4b35dc 100644
--- a/libempathy/empathy-contact.c
+++ b/libempathy/empathy-contact.c
@@ -40,6 +40,7 @@
 #endif
 
 #include "empathy-contact.h"
+#include "empathy-camera-monitor.h"
 #include "empathy-individual-manager.h"
 #include "empathy-utils.h"
 #include "empathy-enum-types.h"
@@ -1301,8 +1302,18 @@ empathy_contact_can_do_action (EmpathyContact *self,
         sensitivity = empathy_contact_can_voip_audio (self);
         break;
       case EMPATHY_ACTION_VIDEO_CALL:
-        sensitivity = empathy_contact_can_voip_video (self);
-        break;
+        {
+          EmpathyCameraMonitor *monitor;
+
+          monitor = empathy_camera_monitor_dup_singleton ();
+
+          sensitivity = empathy_contact_can_voip_video (self);
+          sensitivity = sensitivity &&
+              empathy_camera_monitor_get_available (monitor);
+
+          g_object_unref (monitor);
+          break;
+        }
       case EMPATHY_ACTION_VIEW_LOGS:
         sensitivity = contact_has_log (self);
         break;