[gnome-chess/gnome-3-8] Sensibly set sensitivity of claim draw menu option (cherry picked from commit e9c2d4bfa9a4325ae45af7

[Michael Catanzaro <mcatanzaro src gnome org>]

commit 0b7b04ff236a8277a0b76ffdbe20fea85494be62
Author: Michael Catanzaro <mike catanzaro gmail com>
Date:   Tue May 21 19:40:04 2013 -0500

    Sensibly set sensitivity of claim draw menu option
    (cherry picked from commit e9c2d4bfa9a4325ae45af78835042a49734b117c)

 src/gnome-chess.vala |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/gnome-chess.vala b/src/gnome-chess.vala
index a019b1d..be33fe7 100644
--- a/src/gnome-chess.vala
+++ b/src/gnome-chess.vala
@@ -21,6 +21,7 @@ public class Application : Gtk.Application
     private Gtk.Widget undo_button;
     private Gtk.Widget resign_menu;
     private Gtk.Widget resign_button;
+    private Gtk.Widget claim_draw_menu;
     private Gtk.Widget first_move_button;
     private Gtk.Widget prev_move_button;
     private Gtk.Widget next_move_button;
@@ -87,6 +88,7 @@ public class Application : Gtk.Application
         undo_button = (Gtk.Widget) builder.get_object ("undo_move_button");
         resign_menu = (Gtk.Widget) builder.get_object ("resign_item");
         resign_button = (Gtk.Widget) builder.get_object ("resign_button");
+        claim_draw_menu = (Gtk.Widget) builder.get_object ("claim_draw_item");
         first_move_button = (Gtk.Widget) builder.get_object ("first_move_button");
         prev_move_button = (Gtk.Widget) builder.get_object ("prev_move_button");
         next_move_button = (Gtk.Widget) builder.get_object ("next_move_button");
@@ -848,6 +850,7 @@ public class Application : Gtk.Application
     {
         var can_resign = game.n_moves > 0 && game.current_player != opponent;
         resign_menu.sensitive = resign_button.sensitive = can_resign;
+        claim_draw_menu.sensitive = can_resign;
 
         /* Can undo once the human player has made a move */
         var can_undo = game.n_moves > 0;
@@ -861,6 +864,7 @@ public class Application : Gtk.Application
     {
         resign_menu.sensitive = resign_button.sensitive = false;
         undo_menu.sensitive = undo_button.sensitive = false;
+        claim_draw_menu.sensitive = false;
 
         if (opponent_engine != null)
             opponent_engine.stop ();