From 7c923dd77f2c81b167b5e0fb2e59aee8da390e12 Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Wed, 4 Dec 2013 01:32:57 +0900
Subject: [PATCH] Allow users to define custom before/after callbacks (#3)

---
 README.md       | 25 +++++++++++++++++++++++++
 plugin/goyo.vim |  8 ++++++++
 2 files changed, 33 insertions(+)

diff --git a/README.md b/README.md
index 03db559..d0df1f3 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,31 @@ Configuration
 - `g:goyo_margin_top` (default: 4)
 - `g:goyo_margin_bottom` (default: 4)
 - `g:goyo_linenr` (default: 0)
+- `g:goyo_callbacks` ([before_funcref, after_funcref])
+
+### Callbacks
+
+By default, [vim-airline](https://github.com/bling/vim-airline),
+[vim-powerline](https://github.com/Lokaltog/vim-powerline),
+[powerline](https://github.com/Lokaltog/powerline), and
+[vim-gitgutter](https://github.com/airblade/vim-gitgutter) are temporarily
+disabled while in Goyo mode.
+
+If you have other plugins that you want to disable/enable, or if you want to
+change the default settings of Goyo window, you can define before and after
+callbacks as follows in your .vimrc.
+
+```vim
+function! s:goyo_before()
+  "
+endfunction
+
+function! s:goyo_after()
+  "
+endfunction
+
+let g:goyo_callbacks = [function('s:goyo_before'), function('s:goyo_after')]
+```
 
 Inspiration
 -----------
diff --git a/plugin/goyo.vim b/plugin/goyo.vim
index bb34b82..a5e82ba 100644
--- a/plugin/goyo.vim
+++ b/plugin/goyo.vim
@@ -168,6 +168,10 @@ function! s:goyo_on(width)
 
   let &statusline = repeat(' ', winwidth(0))
 
+  if exists('g:goyo_callbacks[0]')
+    call g:goyo_callbacks[0]()
+  endif
+
   augroup goyo
     autocmd!
     autocmd BufWinLeave <buffer> call s:goyo_off()
@@ -231,6 +235,10 @@ function! s:goyo_off()
   if exists('#Powerline')
     doautocmd Powerline ColorScheme
   endif
+
+  if exists('g:goyo_callbacks[1]')
+    call g:goyo_callbacks[1]()
+  endif
 endfunction
 
 function! s:goyo(...)