From 49a19edf636c9b5aafe68a52445e767eb219c644 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Sat, 12 Apr 2014 22:54:26 +0000
Subject: [PATCH] Avoid selecting invalid tab when removing last page from
 wxOSX wxNotebook.

Closes #15897 (backport of r75663 from trunk).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@76319 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
---
 src/osx/cocoa/notebook.mm | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/osx/cocoa/notebook.mm b/src/osx/cocoa/notebook.mm
index d71ca4047c..2f8eceb426 100644
--- a/src/osx/cocoa/notebook.mm
+++ b/src/osx/cocoa/notebook.mm
@@ -194,7 +194,8 @@ public:
         // avoid 'changed' events when setting the tab programmatically
         wxTabViewController* controller = [slf delegate];
         [slf setDelegate:nil];
-        [slf selectTabViewItemAtIndex:(value-1)];
+        if ( value > 0 )
+            [slf selectTabViewItemAtIndex:(value-1)];
         [slf setDelegate:controller];
     }