vim-patch:7.4.1835

Problem:    When splitting and closing a window the status height changes.
Solution:   Compute the frame height correctly. (Hirohito Higashi)

https://github.com/vim/vim/commit/991dea3ab185fb35e577ab0bdfd443cd4b43ccc6

4 files changed, 52 insertions, 14 deletions

diff --git a/src/nvim/testdir/test_alot.vim b/src/nvim/testdir/test_alot.vim
index 083f57aec1..9681982d14 100644
--- a/src/nvim/testdir/test_alot.vim
+++ b/src/nvim/testdir/test_alot.vim
@@ -18,4 +18,5 @@ source test_syn_attr.vim
 source test_tabline.vim
 source test_tabpage.vim
 source test_unlet.vim
+source test_window_cmd.vim
 source test_matchadd_conceal_utf8.vim
diff --git a/src/nvim/testdir/test_window_cmd.vim b/src/nvim/testdir/test_window_cmd.vim
new file mode 100644
index 0000000000..d2e42720d2
--- /dev/null
+++ b/src/nvim/testdir/test_window_cmd.vim
@@ -0,0 +1,37 @@
+" Tests for window cmd (:wincmd, :split, :vsplit, :resize and etc...)
+
+func Test_window_cmd_ls0_with_split()
+  set ls=0
+  set splitbelow
+  split
+  quit
+  call assert_equal(0, &lines - &cmdheight - winheight(0))
+  new | only!
+  "
+  set splitbelow&vim
+  botright split
+  quit
+  call assert_equal(0, &lines - &cmdheight - winheight(0))
+  new | only!
+  set ls&vim
+endfunc
+
+func Test_window_cmd_cmdwin_with_vsp()
+  let efmt='Expected 0 but got %d (in ls=%d, %s window)'
+  for v in range(0, 2)
+    exec "set ls=" . v
+    vsplit
+    call feedkeys("q:\<CR>")
+    let ac = &lines - (&cmdheight + winheight(0) + !!v)
+    let emsg = printf(efmt, ac, v, 'left')
+    call assert_equal(0, ac, emsg)
+    wincmd w
+    let ac = &lines - (&cmdheight + winheight(0) + !!v)
+    let emsg = printf(efmt, ac, v, 'right')
+    call assert_equal(0, ac, emsg)
+    new | only!
+  endfor
+  set ls&vim
+endfunc
+
+" vim: sw=2 et
diff --git a/src/nvim/version.c b/src/nvim/version.c
index 05855ee385..b60cecf7f9 100644
--- a/src/nvim/version.c
+++ b/src/nvim/version.c
@@ -607,7 +607,7 @@ static int included_patches[] = {
   // 1838,
   // 1837,
   // 1836,
-  // 1835,
+  1835,
   // 1834,
   1833,
   1832,
diff --git a/src/nvim/window.c b/src/nvim/window.c
index 8512556c0a..dac3c1614a 100644
--- a/src/nvim/window.c
+++ b/src/nvim/window.c
@@ -894,31 +894,31 @@ int win_split_ins(int size, int flags, win_T *new_wp, int dir)
     /* "new_size" of the current window goes to the new window, use
      * one row for the status line */
     win_new_height(wp, new_size);
-    if (flags & (WSP_TOP | WSP_BOT))
-      frame_new_height(curfrp, curfrp->fr_height
-          - (new_size + STATUS_HEIGHT), flags & WSP_TOP, FALSE);
-    else
+    if (flags & (WSP_TOP | WSP_BOT)) {
+      int new_fr_height = curfrp->fr_height - new_size;
+
+      if (!((flags & WSP_BOT) && p_ls == 0)) {
+        new_fr_height -= STATUS_HEIGHT;
+      }
+      frame_new_height(curfrp, new_fr_height, flags & WSP_TOP, false);
+    } else {
       win_new_height(oldwin, oldwin_height - (new_size + STATUS_HEIGHT));
-    if (before) {       /* new window above current one */
+    }
+    if (before) {       // new window above current one
       wp->w_winrow = oldwin->w_winrow;
       wp->w_status_height = STATUS_HEIGHT;
       oldwin->w_winrow += wp->w_height + STATUS_HEIGHT;
     } else {          /* new window below current one */
       wp->w_winrow = oldwin->w_winrow + oldwin->w_height + STATUS_HEIGHT;
       wp->w_status_height = oldwin->w_status_height;
-      // Don't set the status_height for oldwin yet, this might break
-      // frame_fix_height(oldwin), therefore will be set below.
+      if (!(flags & WSP_BOT)) {
+        oldwin->w_status_height = STATUS_HEIGHT;
+      }
     }
     if (flags & WSP_BOT)
       frame_add_statusline(curfrp);
     frame_fix_height(wp);
     frame_fix_height(oldwin);
-
-    if (!before) {
-      // New window above current one, set the status_height after
-      // frame_fix_height(oldwin)
-      oldwin->w_status_height = STATUS_HEIGHT;
-    }
   }
 
   if (flags & (WSP_TOP | WSP_BOT))