From 44e79fc935004c2e67fc39a77266d0f06e29d920 Mon Sep 17 00:00:00 2001
From: Adam Stankiewicz <sheerun@sher.pl>
Date: Wed, 30 Dec 2020 00:48:12 +0100
Subject: Check changes for focus event, improves #638

---
 autoload/focau/init.vim | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 autoload/focau/init.vim

(limited to 'autoload/focau/init.vim')

diff --git a/autoload/focau/init.vim b/autoload/focau/init.vim
new file mode 100644
index 00000000..7c9320ec
--- /dev/null
+++ b/autoload/focau/init.vim
@@ -0,0 +1,33 @@
+" WARNING: seems like we can't use <expr> maps, because we need side-effects
+" ALT: {s: <C-g>...<C-g>, o: <Esc>, i: <C-o>, c: <C-\>e}
+function! s:map_triggers(e)
+  for [a, i] in items({'FocusGained': 0, 'FocusLost': 1})
+    let key = keys(a:e)[i] | exe 'set '.key.'='.a:e[key]
+    exe "fun! s:F".i."()\nif g:focau.active|sil! doau ".a."|en|return''\nendf"
+    for [ms, prf] in items({'nv': '@=', 'o': ':call ', 'ic': '<C-r>='})
+      for m in split(ms, '\zs')
+        exe m.'noremap <silent> '.key.' '.prf.'<SID>F'.i.'()<CR>'
+  endfor | endfor | endfor
+endfunction
+
+
+function! focau#init#main()
+  augroup focau
+    autocmd!
+  augroup END
+
+  call focau#cursor#shape_preserve()
+
+  if g:focau.auto
+    let g:focau.focuses = focau#events#auto_choose()
+    let g:focau.cursors = focau#cursor#auto_shape()
+    "" FIX: must be dynamic and check curr lang before each mode/lang-switch
+    " call s:focau_lang_choose() "primary/secondary
+  endif
+
+  " Wrap choosen keys in event triggers
+  call s:map_triggers(g:focau.events)
+  " Start
+  call focau#events#enable(g:focau.active)
+  au focau VimEnter * if g:focau.active | sil! doau FocusGained | endif
+endfunction
-- 
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