[gnome-boxes] machine: Ensure thumbnail update in properties sidebar

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit b18309719911a49007642a14c3318d16d6ee31d2
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Mon Mar 3 20:42:00 2014 +0000

    machine: Ensure thumbnail update in properties sidebar
    
    Only update thumbnail for current item and ensure thumbnail gets updated
    when going to properties view.

 src/machine.vala |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)
---
diff --git a/src/machine.vala b/src/machine.vala
index 3bb4be1..415b563 100644
--- a/src/machine.vala
+++ b/src/machine.vala
@@ -368,7 +368,8 @@ private abstract class Boxes.Machine: Boxes.CollectionItem, Boxes.IPropertiesPro
 
             orig_pixbuf = small_screenshot;
             pixbuf = draw_vm (small_screenshot, SCREENSHOT_WIDTH, SCREENSHOT_HEIGHT);
-            App.window.sidebar.screenshot.set_from_pixbuf (pixbuf);
+            if (App.app.current_item == this)
+                App.window.sidebar.screenshot.set_from_pixbuf (pixbuf);
             if (save)
                 save_pixbuf_as_screenshot (small_screenshot);
 
@@ -511,6 +512,11 @@ private abstract class Boxes.Machine: Boxes.CollectionItem, Boxes.IPropertiesPro
             disconnect_display ();
 
             break;
+        case UIState.PROPERTIES:
+            if (pixbuf != null)
+                App.window.sidebar.screenshot.set_from_pixbuf (pixbuf);
+
+            break;
         }
     }