empathy-call: Handle yanking out of current video input

If the current video input is yanked out, we continue the call with
only audio and desensitize the camera menu. Once the call is over we
sensitize it again and continue.

Fixes: https://bugzilla.gnome.org/687928

1 files changed, 20 insertions, 4 deletions

diff --git a/src/empathy-camera-menu.c b/src/empathy-camera-menu.c
index 9633d84fa..a0e0ca6fa 100644
--- a/src/empathy-camera-menu.c
+++ b/src/empathy-camera-menu.c
@@ -132,15 +132,16 @@ empathy_camera_menu_activate_cb (GtkAction *action,
 {
   EmpathyGstVideoSrc *video;
   const gchar *device;
-  gchar *current_device;
+  gchar *current_device = NULL;
 
   if (self->priv->in_update)
     return;
 
   video = empathy_call_window_get_video_src (self->priv->window);
+  if (video != NULL)
+    current_device = empathy_video_src_dup_device (video);
 
   device = gtk_action_get_name (action);
-  current_device = empathy_video_src_dup_device (video);
 
   /* Don't change the device if it's the currently used one */
   if (!tp_strdiff (device, current_device))
@@ -158,12 +159,13 @@ empathy_camera_menu_update (EmpathyCameraMenu *self)
   GList *l;
   GtkUIManager *ui_manager;
   EmpathyGstVideoSrc *video;
-  gchar *current_camera;
+  gchar *current_camera = NULL;
 
   ui_manager = empathy_call_window_get_ui_manager (self->priv->window);
 
   video = empathy_call_window_get_video_src (self->priv->window);
-  current_camera = empathy_video_src_dup_device (video);
+  if (video != NULL)
+    current_camera = empathy_video_src_dup_device (video);
 
   empathy_camera_menu_clean (self);
   self->priv->ui_id = gtk_ui_manager_new_merge_id (ui_manager);
@@ -394,3 +396,17 @@ empathy_camera_menu_new (EmpathyCallWindow *window)
       "window", window,
       NULL);
 }
+
+void
+empathy_camera_menu_set_sensitive (EmpathyCameraMenu *self,
+    gboolean sensitive)
+{
+  GtkUIManager *ui_manager;
+
+  gtk_action_group_set_sensitive (self->priv->action_group, sensitive);
+  if (sensitive) /* Mark the active camera as such. */
+    empathy_camera_menu_update (self);
+
+  ui_manager = empathy_call_window_get_ui_manager (self->priv->window);
+  gtk_ui_manager_ensure_update (ui_manager);
+}