Revert "Check changes for focus event, improves #638"

It's because it additionally changes cursor to vertical bar.
I need to disable this behavior and make it compatible with
plugins that enable vertical cursor...

This reverts commit 44e79fc935004c2e67fc39a77266d0f06e29d920.

3 files changed, 0 insertions, 152 deletions

diff --git a/autoload/focau/cursor.vim b/autoload/focau/cursor.vim
deleted file mode 100644
index d3da5c49..00000000
--- a/autoload/focau/cursor.vim
+++ /dev/null
@@ -1,55 +0,0 @@
-function! focau#cursor#auto_shape()
-  if $TERM =~? '\v^%(dumb|linux)'
-    " echom "Shape escape codes: can't autodetect for $TERM=" . $TERM
-    return ['', '', '']
-  elseif $TERM =~? '^konsole' || exists('$ITERM_PROFILE')
-    return ["\e]50;CursorShape=0\x7", "\e]50;CursorShape=1\x7", "\e]50;CursorShape=2\x7"]
-  endif
-
-  "" DISABLED: to reduce startup time, and it will not work through ssh
-  " let uver = eval(substitute(system('urxvt -h 2>&1'),
-  "       \ '\v.*v(\d+)\.(\d+).*', '\1+\2.0/100', ''))
-  " return ["\e[2 q", (l:uver<9.21? "\e[4 q": "\e[6 q"), "\e[4 q"]
-  " let l:uver = substitute(split(system('urxvt -help 2>&1'), '\n')[0],
-  "       \ '.*v\([0-9.]\+\).*', '\1', '')
-  " return ["\e[2 q", (9.21 <= l:uver ? "\e[6 q" : "\e[4 q")]
-
-  " [1,2] -> [blinking,solid] block
-  " [3,4] -> [blinking,solid] underscore
-  " [5,6] -> [blinking,solid] vbar/I-beam (only in xterm > 282),
-  "     urxvt got I-beam only in v9.21 2014-12-31, build from recent git.
-
-  " if $TERM =~? '\v^%(xterm|rxvt|st|screen|tmux|nvim)'
-  " NOTE:(old xterm) ["\e[2 q", "\e[6 q", '']
-  return ["\e[2 q", "\e[6 q", "\e[4 q"]
-endfunction
-
-
-function! focau#cursor#auto_color(idx)
-  " SEE: http://stackoverflow.com/questions/11494029/how-do-i-change-the-color-of-current-cursor-position-indicator
-  if !g:focau.auto
-    let colors = g:focau.colors
-  elseif $TERM =~? '\v^%(xterm|st|screen|tmux|rxvt)'
-    "" ALT: ["\e]12;white\x9c", "\e]12;orange\x9c"]
-    " use default \003]12;gray\007 for gnome-terminal
-    let colors = [ "\e]12;". g:focau.colors[0] ."\x7",
-                 \ "\e]12;". g:focau.colors[1] ."\x7" ]
-  else
-    " echom "Err: can't detect esc codes for cursor colors in $TERM=".$TERM
-    let colors = ['', '']
-  endif
-  return l:colors[a:idx]
-endfunction
-
-
-function! focau#cursor#shape_preserve()
-  "" Preserve previous cursor state and restore upon exit
-  let s:old_SI=&t_SI | let s:old_EI=&t_EI | if exists('&t_SR')
-      \| let s:old_RS=&t_SR | endif
-  " BUG: has no effect on restoring color after exit.
-  "" There are sequence to change color, but not the one to restore to default
-  " SEE Maybe save/restore the screen -- works for cursor? -- seems NO.
-  au focau VimLeave * let &t_SI = s:old_SI | let &t_EI = s:old_EI
-      \| if exists('&t_SR') | let &t_SR = s:old_RS | endif
-endfunction
-
diff --git a/autoload/focau/events.vim b/autoload/focau/events.vim
deleted file mode 100644
index acc9293f..00000000
--- a/autoload/focau/events.vim
+++ /dev/null
@@ -1,64 +0,0 @@
-"" WARNING: For focus-events to work in tmux, you need to set this option
-" inside your tmux.conf:   set -g focus-events on
-" WARNING: must be outside this 'if' in s:focau_modes_enable, as it will not
-" work in tmux on_disable!
-
-if exists('$TMUX') || $TERM =~? 'screen\|tmux'  " FIXED for [tmux -> ssh | vim]
-  " Disable bkgd color erase and don't truncate highlighting
-  " So highlighted line does go all the way across screen
-  set t_ut=
-  function! s:wrap(s)
-    return "\ePtmux;". substitute(escape(a:s, ' '),
-          \ "\e\\|\<Esc>", "\e\e", 'g') ."\e\\"
-  endfunction
-else
-  function! s:wrap(s)
-    return escape(a:s, ' ')
-  endfunction
-endif
-
-
-function! focau#events#auto_choose()
-  " if $TERM =~? '\v^%(dumb|linux)'
-  " echom "Err: your terminal don't support focus events $TERM=" . $TERM
-  " echom "Err: Can't auto-derive termfocus codes for your $TERM=" . $TERM
-  " echom "Disabled. If you disagree, set escape codes by yourself:)"
-  if $TERM =~? '^rxvt'
-    return ["\e]777;focus;on\x7", "\e]777;focus;off\x7"]
-  endif
-  " if $TERM =~? '\v^%(xterm|st|screen|tmux)' || exists('$ITERM_PROFILE')
-  return ["\e[?1004h", "\e[?1004l"]
-endfunction
-
-
-" ALT:
-" augroup focau_focus
-"   autocmd!
-"   if a:state
-"     au VimEnter    * call s:focau_cso('on')
-"     au VimLeavePre * call s:focau_cso('off')
-"   endif
-" augroup END
-function! focau#events#enable(state)
-  let g:focau.active = a:state
-  if !g:focau.active | let &t_ti = '' | let &t_te = '' | return | endif
-  " CHECK: Is it necessary to be able toggle dynamically?
-  " exec 'silent !echo -ne "'. g:focau.focuses[1] .g:focau.screens[1] .'"'
-
-  "" FIX: add two color groups based on language, not permanent. See xkb.
-  let color = focau#cursor#auto_color(0)
-  let codes = ['t_EI', 't_SI', 't_SR']
-  " Install insert mode autohooks -- on enter/leave
-  for i in range(3)| if exists('&'.codes[i])
-    exe 'set '.codes[i].'='.s:wrap(g:focau.cursors[i] . l:color)
-  endif | endfor
-
-  let on_init = &t_EI . s:wrap(g:focau.focuses[0]) . g:focau.screens[0]
-  let on_exit = s:wrap(g:focau.focuses[1]) . g:focau.screens[1]
-
-  " Install focus autohooks -- on startup/shutdown
-  let &t_ti = on_init | let &t_te = on_exit
-
-  " CHECK: Is it necessary to be able toggle dynamically?
-  " exec 'silent !echo -ne "'.&t_EI.g:focau.focuses[0].g:focau.screens[0].'"'
-endfunction
diff --git a/autoload/focau/init.vim b/autoload/focau/init.vim
deleted file mode 100644
index 7c9320ec..00000000
--- a/autoload/focau/init.vim
+++ /dev/null
@@ -1,33 +0,0 @@
-" 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