From 2fefb5e7d343f21cfc64f299b032a679fbd27ef9 Mon Sep 17 00:00:00 2001
From: Florian Walch <florian@fwalch.com>
Date: Tue, 23 Dec 2014 12:14:01 +0100
Subject: vim-patch:7.4.458

Problem:    Issue 252: Cursor moves in a zero-height window.
Solution:   Check for zero height. (idea by Christian Brabandt)

https://code.google.com/p/vim/source/detail?r=v7-4-458
---
 src/nvim/move.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/nvim/move.c')

diff --git a/src/nvim/move.c b/src/nvim/move.c
index 95b961e52c..40f301e595 100644
--- a/src/nvim/move.c
+++ b/src/nvim/move.c
@@ -146,6 +146,15 @@ void update_topline(void)
   if (!screen_valid(TRUE))
     return;
 
+  // If the window height is zero, just use the cursor line.
+  if (curwin->w_height == 0) {
+    curwin->w_topline = curwin->w_cursor.lnum;
+    curwin->w_botline = curwin->w_topline;
+    curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP;
+    curwin->w_scbind_pos = 1;
+    return;
+  }
+
   check_cursor_moved(curwin);
   if (curwin->w_valid & VALID_TOPLINE)
     return;
-- 
cgit