Disable "Actions" menu when a command is sent (and re-enable when we get a reply back)

WpkgNotifier/TrayNotifier.cs

@@ -87,11 +87,13 @@ namespace WpkgNotifier
 
         void RequestSync(object sender, EventArgs e)
         {
+            notifyIcon.ContextMenu.MenuItems[0].Enabled = false;
             messageChannel.HandleMessage(WpkgMessageRequestType.DO_SYNC);
         }
 
         void RequestQuery(object sender, EventArgs e)
         {
+            notifyIcon.ContextMenu.MenuItems[0].Enabled = false;
             messageChannel.HandleMessage(WpkgMessageRequestType.RUN_QUERY);
         }
 
@@ -119,16 +121,20 @@ namespace WpkgNotifier
             switch (status)
             {
                 case WpkgMessageState.IDLE:
+                    notifyIcon.ContextMenu.MenuItems[0].Enabled = true;
                     notifyIcon.Icon = WpkgNotifier.Properties.Resources.wpkgIcon;
                     break;
                 case WpkgMessageState.SUCCESS:
+                    notifyIcon.ContextMenu.MenuItems[0].Enabled = true;
                     notifyIcon.Icon = WpkgNotifier.Properties.Resources.green;
                     break;
                 case WpkgMessageState.ERROR:
+                    notifyIcon.ContextMenu.MenuItems[0].Enabled = true;
                     notifyIcon.Icon = WpkgNotifier.Properties.Resources.red;
                     break;
                 case WpkgMessageState.SYNCING:
                 case WpkgMessageState.QUERYING:
+                    notifyIcon.ContextMenu.MenuItems[0].Enabled = true;
                     notifyIcon.Icon = WpkgNotifier.Properties.Resources.blue;
                     break;
             }