[cheese/wip/hans-fixes-master: 14/16] Fix updating sensitivity of device selection combo

[David King <davidk src gnome org>]

commit 6c5c7ebaf58387fb93bfe136cfc654cf986ff157
Author: Hans de Goede <hdegoede redhat com>
Date:   Thu Jun 13 10:30:02 2013 +0200

    Fix updating sensitivity of device selection combo
    
    If Cheese was started with 1 device, and then a second was added, the
    device selection stayed insensitive, making it impossible to select the
    second device.
    
    This fixes the problem, and also makes the combo insensitive again when
    going from >= 2 devices to <= 1 device.
    
    Signed-off-by: Hans de Goede <hdegoede redhat com>

 src/cheese-preferences.vala |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/src/cheese-preferences.vala b/src/cheese-preferences.vala
index d4d5501..e078cbb 100644
--- a/src/cheese-preferences.vala
+++ b/src/cheese-preferences.vala
@@ -136,8 +136,7 @@ public class Cheese.PreferencesDialog : GLib.Object
     camera_model = new ListStore (2, typeof (string), typeof (Cheese.CameraDevice));
 
     source_combo.model = camera_model;
-    if (devices.len <= 1)
-      source_combo.sensitive = false;
+    source_combo.sensitive = false;
 
     devices.foreach(add_camera_device);
 
@@ -499,6 +498,9 @@ public class Cheese.PreferencesDialog : GLib.Object
 
     if (camera.get_selected_device ().get_device_node () == dev.get_device_node ())
         source_combo.set_active_iter (iter);
+
+    if (camera_model.iter_n_children (null) > 1)
+      source_combo.sensitive = true;
   }
 
   /**
@@ -522,6 +524,9 @@ public class Cheese.PreferencesDialog : GLib.Object
           this.dialog.hide();
       }
       camera_model.remove (iter);
+
+      if (camera_model.iter_n_children (null) <= 1)
+        source_combo.sensitive = false;
   }
 
   /**