Merge pull request #131 from lambdalisue/select-statusline

Support custom highlight in window select

Author: lambdalisue

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()

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*