Merge pull request #298 from buggo/master - nerdtree

commit 2a769a726376c932581bf6701d92a780501845a6
parent 0ee888ee17cbc8a452bd69f34e8ca6c0788b3124
Author: Martin Grenfell <martin.grenfell@gmail.com>
Date:   Wed,  2 Jul 2014 20:49:59 +0100

Merge pull request #298 from buggo/master

Fix error 121 when clicking on command line below another window
Diffstat:
M lib/nerdtree/key_map.vim  | 3 +++

1 file changed, 3 insertions(+), 0 deletions(-)
diff --git a/lib/nerdtree/key_map.vim b/lib/nerdtree/key_map.vim
@@ -79,6 +79,9 @@ endfunction
 "If a keymap has the scope of "all" then it will be called if no other keymap
 "is found for a:key and the scope.
 function! s:KeyMap.Invoke(key)
+    if !exists('b:NERDTreeRoot')
+        return {}
+    endif
     let node = g:NERDTreeFileNode.GetSelected()
     if !empty(node)