From d879331b0dee66cb106b5bea9efc2f920caf9abd Mon Sep 17 00:00:00 2001
From: bfredl <bjorn.linse@gmail.com>
Date: Mon, 25 Jul 2022 10:16:33 +0200
Subject: feat(ui): allow to set the highlight namespace per window

- reimplement 'winhl' in terms of highlight namespaces
- check for EOF in screen tests (to indicate a likely crash)
---
 src/nvim/api/window.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'src/nvim/api/window.c')

diff --git a/src/nvim/api/window.c b/src/nvim/api/window.c
index 5a4ff70257..d0a2ff766e 100644
--- a/src/nvim/api/window.c
+++ b/src/nvim/api/window.c
@@ -426,3 +426,28 @@ Object nvim_win_call(Window window, LuaRef fun, Error *err)
   try_end(err);
   return res;
 }
+
+/// Set highlight namespace for a window. This will use highlights defined in
+/// this namespace, but fall back to global highlights (ns=0) when missing.
+///
+/// This takes predecence over the 'winhighlight' option.
+///
+/// @param ns_id the namespace to use
+/// @param[out] err Error details, if any
+void nvim_win_set_hl_ns(Window window, Integer ns_id, Error *err)
+  FUNC_API_SINCE(10)
+{
+  win_T *win = find_window_by_handle(window, err);
+  if (!win) {
+    return;
+  }
+
+  // -1 is allowed as inherit global namespace
+  if (ns_id < -1) {
+    api_set_error(err, kErrorTypeValidation, "no such namespace");
+  }
+
+  win->w_ns_hl = (NS)ns_id;
+  win->w_hl_needs_update = true;
+  redraw_later(win, NOT_VALID);
+}
-- 
cgit 


From 51063a90df4cc8af4e1111dd50194ae487e8097e Mon Sep 17 00:00:00 2001
From: Lewis Russell <lewis6991@gmail.com>
Date: Tue, 16 Aug 2022 12:27:07 +0100
Subject: vim-patch:8.1.2057: the screen.c file is much too big

Problem:    The screen.c file is much too big.
Solution:   Split it in three parts. (Yegappan Lakshmanan, closes vim/vim#4943)
https://github.com/vim/vim/commit/7528d1f6b5422750eb778dfb550cfd0b0e540964

This is an approximation vim-patch 8.1.2057. Applying the patch directly
isn't feasible since our version of screen.c has diverged too much,
however we still introduce drawscreen.c and drawline.c:
- screen.c is now a much smaller file used for low level screen functions
- drawline.c contains everything needed for win_line()
- drawscreen.c contains everything needed for update_screen()

Co-authored-by: zeertzjq <zeertzjq@outlook.com>
---
 src/nvim/api/window.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/nvim/api/window.c')

diff --git a/src/nvim/api/window.c b/src/nvim/api/window.c
index d0a2ff766e..580dfd8639 100644
--- a/src/nvim/api/window.c
+++ b/src/nvim/api/window.c
@@ -12,12 +12,12 @@
 #include "nvim/ascii.h"
 #include "nvim/buffer.h"
 #include "nvim/cursor.h"
+#include "nvim/drawscreen.h"
 #include "nvim/ex_docmd.h"
 #include "nvim/globals.h"
 #include "nvim/lua/executor.h"
 #include "nvim/move.h"
 #include "nvim/option.h"
-#include "nvim/screen.h"
 #include "nvim/syntax.h"
 #include "nvim/vim.h"
 #include "nvim/window.h"
-- 
cgit