commit 2a67ed83a885e8e65e25498660dae4f34d532c7b
author Bram Moolenaar <Bram@vim.org> Fri Jun 10 21:52:42 2016 +0200
committer Bram Moolenaar <Bram@vim.org> Fri Jun 10 21:52:42 2016 +0200
tree c02c0dafb870906ce37740187dc7a919d036692a
parent e429e70f050cb2941f1f8427cf918b68444c904e

patch 7.4.1915
Problem:    The effect of the PopupMenu autocommand isn't directly visible.
Solution:   Call gui_update_menus() before displaying the popup menu. (Shane
            Harper, closs #855)

src/menu.c

diff --git a/src/menu.c b/src/menu.c
index b6f8ce4..2802de3 100644
--- a/src/menu.c
+++ b/src/menu.c
@@ -1970,7 +1970,12 @@
 
     /* Only show a popup when it is defined and has entries */
     if (menu != NULL && menu->children != NULL)
+    {
+	/* Update the menus now, in case the MenuPopup autocommand did
+	 * anything. */
+	gui_update_menus(0);
 	gui_mch_show_popupmenu(menu);
+    }
 }
 #endif /* FEAT_GUI */