# HG changeset patch
# User Christian Brabandt <cb@256bit.org>
# Date 1441728004 -7200
# Node ID 052043fc57ab5551bc2b90c564487e54e95b0785
# Parent  28eae82172f4be512af5d490ba2f3b8863636bd9
commit https://github.com/vim/vim/commit/4a4b821085847651b71d8ad9fab9f180635cb453
Author: Bram Moolenaar <Bram@vim.org>
Date:   Tue Sep 8 17:50:41 2015 +0200

    patch 7.4.857
    Problem:    Dragging the current tab with the mouse doesn't work properly.
    Solution:   Take the current tabpage index into account. (Hirohito Higashi)

diff --git a/src/normal.c b/src/normal.c
--- a/src/normal.c
+++ b/src/normal.c
@@ -2561,7 +2561,8 @@ do_mouse(oap, c, dir, count, fixindent)
 	    if (in_tab_line)
 	    {
 		c1 = TabPageIdxs[mouse_col];
-		tabpage_move(c1 <= 0 ? 9999 : c1 - 1);
+		tabpage_move(c1 <= 0 ? 9999 : c1 < tabpage_index(curtab)
+								? c1 - 1 : c1);
 	    }
 	    return FALSE;
 	}
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    857,
+/**/
     856,
 /**/
     855,