[gnome-boxes] app-window: Turn current_item into property

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 3a7e28c59ed30dd82b44fce32620dbcc60741851
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Thu Sep 4 14:04:39 2014 +0100

    app-window: Turn current_item into property
    
    We need this to be able to (un)hook on current item's state changes. Not
    using automatic properties cause we need to do that from setter.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=735045

 src/app-window.vala |   12 +++++++++++-
 1 files changed, 11 insertions(+), 1 deletions(-)
---
diff --git a/src/app-window.vala b/src/app-window.vala
index bdaaf57..64e3421 100644
--- a/src/app-window.vala
+++ b/src/app-window.vala
@@ -9,7 +9,17 @@ private class Boxes.AppWindow: Gtk.ApplicationWindow, Boxes.UI {
     public UIState previous_ui_state { get; protected set; }
     public UIState ui_state { get; protected set; }
 
-    public CollectionItem current_item; // current object/vm manipulated
+    // current object/vm manipulated
+    private CollectionItem _current_item;
+    public CollectionItem current_item {
+        get {
+            return _current_item;
+        }
+
+        set {
+            _current_item = value;
+        }
+    }
     public signal void item_selected (CollectionItem item);
 
     private GLib.Binding status_bind;