[gnome-boxes] Update cursor when display cursor change

[Marc-Andre Lureau <malureau src gnome org>]

commit 2c5f85cd0e828467d72e37a2259c680995c5f9a5
Author: Marc-Andrà Lureau <marcandre lureau gmail com>
Date:   Mon Oct 24 16:42:18 2011 +0200

    Update cursor when display cursor change

 src/app.vala |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/src/app.vala b/src/app.vala
index cc0149b..8e0f3a7 100644
--- a/src/app.vala
+++ b/src/app.vala
@@ -251,6 +251,7 @@ private class Boxes.DisplayPage: GLib.Object {
     private uint toolbar_show_id;
     private uint toolbar_hide_id;
     private ulong display_id;
+    private ulong cursor_id;
     private Gtk.Label title;
 
     public DisplayPage (Boxes.App app) {
@@ -348,6 +349,10 @@ private class Boxes.DisplayPage: GLib.Object {
             return false;
         });
 
+        cursor_id = display.get_window ().notify["cursor"].connect (() => {
+            event_box.get_window ().set_cursor (display.get_window ().cursor);
+        });
+
         app.notebook.page = Boxes.AppPage.DISPLAY;
     }
 
@@ -358,6 +363,10 @@ private class Boxes.DisplayPage: GLib.Object {
             display.disconnect (display_id);
             display_id = 0;
         }
+        if (cursor_id != 0) {
+            display.disconnect (cursor_id);
+            cursor_id = 0;
+        }
         if (display != null)
             event_box.remove (display);