From 1f7bbf7fbe8c52b79c8d6da96f20e14c29a78260 Mon Sep 17 00:00:00 2001
From: lambdalisue <lambdalisue@hashnote.net>
Date: Sun, 2 Aug 2020 19:20:25 +0900
Subject: [PATCH] Support custom highlight in window select

---
 autoload/fern/internal/window.vim | 14 +++++++++++++-
 doc/fern.txt                      | 12 +++++++++++-
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/autoload/fern/internal/window.vim b/autoload/fern/internal/window.vim
index 1dc13dce..ca136e87 100644
--- a/autoload/fern/internal/window.vim
+++ b/autoload/fern/internal/window.vim
@@ -82,7 +82,7 @@ function! s:statusline(winnr, char) abort
   let width = winwidth(a:winnr) - len(a:winnr . '') - 6
   let leading = repeat(' ', width / 2)
   return printf(
-        \ '%%#NonText#%s%%#DiffText#   %s   %%#NonText#',
+        \ '%%#FernWindowSelectStatusLine#%s%%#FernWindowSelectIndicator#   %s   %%#FernWindowSelectStatusLine#',
         \ leading,
         \ a:char,
         \)
@@ -105,7 +105,19 @@ function! s:cunmap_all() abort
   endfor
 endfunction
 
+function! s:highlight() abort
+  highlight default link FernWindowSelectStatusLine StatusLineNC
+  highlight default link FernWindowSelectIndicator  DiffText
+endfunction
+
 call s:Config.config(expand('<sfile>:p'), {
       \ 'auto_select': 1,
       \ 'select_chars': split('abcdefghijklmnopqrstuvwxyz', '\zs'),
       \})
+
+augroup fern_internal_window_internal
+  autocmd!
+  autocmd ColorScheme * call s:highlight()
+augroup END
+
+call s:highlight()
diff --git a/doc/fern.txt b/doc/fern.txt
index 83b796f6..ccb31cd5 100644
--- a/doc/fern.txt
+++ b/doc/fern.txt
@@ -65,6 +65,8 @@ Window selector~
 	Fern has an internal window selector which works like 
 	t9md/vim-choosewin.  Users can quickly select which window to open a 
 	selected node.
+	See |hl-FernWindowSelectIndicator| and |hl-FernWindowSelectStatusLine|
+	to customize the statusline when selecting a window.
 	https://github.com/t9md/vim-choosewin
 
 Renamer (A.k.a exrename)~
@@ -615,11 +617,19 @@ FernBranchSymbol				*hl-FernBranchSymbol*
 	An actual appearance will be determined by the |fern-renderer| thus 
 	this highlight might not be referred.
 	
-FernBranchText				*hl-FernBranchText*
+FernBranchText					*hl-FernBranchText*
 	A |highlight| group of renderer used for branch node text.
 	An actual appearance will be determined by the |fern-renderer| thus 
 	this highlight might not be referred.
 
+FernWindowSelectIndicator		*hl-FernWindowSelectIndicator*
+	A |highlight| group used for an indicator when selecting a window
+	through "open:select" action.
+
+FernWindowSelectStatusLine		*hl-FernWindowSelectStatusLine*
+	A |highlight| group used for |statusline| when selecting a window
+	through "open:select" action.
+
 
 =============================================================================
 CHANGELOG						*fern-changelog*