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" Copyright (c) 2013 Junegunn Choi | ||
" | ||
" MIT License | ||
" | ||
" Permission is hereby granted, free of charge, to any person obtaining | ||
" a copy of this software and associated documentation files (the | ||
" "Software"), to deal in the Software without restriction, including | ||
" without limitation the rights to use, copy, modify, merge, publish, | ||
" distribute, sublicense, and/or sell copies of the Software, and to | ||
" permit persons to whom the Software is furnished to do so, subject to | ||
" the following conditions: | ||
" | ||
" The above copyright notice and this permission notice shall be | ||
" included in all copies or substantial portions of the Software. | ||
" | ||
" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
" NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | ||
" LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | ||
" OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | ||
" WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
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let s:cpo_save = &cpo | ||
set cpo&vim | ||
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function! s:get_color(group, attr) | ||
return synIDattr(synIDtrans(hlID(a:group)), a:attr) | ||
endfunction | ||
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function! s:set_color(group, attr, color) | ||
let gui = has('gui_running') | ||
execute printf("hi %s %s%s=%s", a:group, gui ? 'gui' : 'cterm', a:attr, a:color) | ||
endfunction | ||
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function! s:blank() | ||
let main = bufwinnr(t:goyo_master) | ||
if main != -1 | ||
execute main . 'wincmd w' | ||
else | ||
call s:goyo_off() | ||
endif | ||
endfunction | ||
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function! s:init_pad(command) | ||
execute a:command | ||
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setlocal buftype=nofile bufhidden=wipe nomodifiable nobuflisted noswapfile | ||
\ nonu nocursorline winfixwidth winfixheight statusline=\ | ||
if exists('&rnu') | ||
setlocal nornu | ||
endif | ||
if exists('&colorcolumn') | ||
setlocal colorcolumn= | ||
endif | ||
let bufnr = winbufnr(0) | ||
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execute winnr('#') . 'wincmd w' | ||
return bufnr | ||
endfunction | ||
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function! s:setup_pad(bufnr, vert, size) | ||
let win = bufwinnr(a:bufnr) | ||
execute win . 'wincmd w' | ||
execute (a:vert ? 'vertical ' : '') . 'resize ' . max([0, a:size]) | ||
augroup goyop | ||
autocmd WinEnter <buffer> call s:blank() | ||
augroup END | ||
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" To hide scrollbars of pad windows in GVim | ||
let diff = winheight(0) - line('$') - (has('gui_running') ? 2 : 0) | ||
if diff > 0 | ||
setlocal modifiable | ||
call append(0, map(range(1, diff), '""')) | ||
normal! gg | ||
setlocal nomodifiable | ||
endif | ||
execute winnr('#') . 'wincmd w' | ||
endfunction | ||
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function! s:hmargin() | ||
let nwidth = max([len(string(line('$'))) + 1, &numberwidth]) | ||
let width = t:goyo_width + (&number ? nwidth : 0) | ||
return (&columns - width) | ||
endfunction | ||
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function! s:resize_pads() | ||
let hmargin = s:hmargin() | ||
let tmargin = get(g:, 'goyo_margin_top', 4) | ||
let bmargin = get(g:, 'goyo_margin_bottom', 4) | ||
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augroup goyop | ||
autocmd! | ||
augroup END | ||
call s:setup_pad(t:goyo_pads.t, 0, tmargin - 1) | ||
call s:setup_pad(t:goyo_pads.b, 0, bmargin - 2) | ||
call s:setup_pad(t:goyo_pads.l, 1, hmargin / 2 - 1) | ||
call s:setup_pad(t:goyo_pads.r, 1, hmargin / 2 - 1) | ||
endfunction | ||
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function! s:tranquilize() | ||
let bg = s:get_color('Normal', 'bg') | ||
for grp in ['NonText', 'FoldColumn', 'ColorColumn', 'VertSplit', | ||
\ 'StatusLine', 'StatusLineNC', 'SignColumn'] | ||
" -1 on Vim / '' on GVim | ||
if bg == -1 || empty(bg) | ||
call s:set_color(grp, '', 'NONE') | ||
call s:set_color(grp, 'fg', get(g:, 'goyo_bg', 'black')) | ||
call s:set_color(grp, 'bg', 'NONE') | ||
else | ||
call s:set_color(grp, 'fg', bg) | ||
call s:set_color(grp, 'bg', bg) | ||
endif | ||
endfor | ||
endfunction | ||
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function! s:goyo_on(width) | ||
" New tab | ||
tab split | ||
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let t:goyo_master = winbufnr(0) | ||
let t:goyo_width = a:width | ||
let t:goyo_pads = {} | ||
let t:goyo_revert = | ||
\ { 'laststatus': &laststatus, | ||
\ 'showtabline': &showtabline, | ||
\ 'fillchars': &fillchars, | ||
\ 'winwidth': &winwidth, | ||
\ 'winheight': &winheight, | ||
\ 'statusline': &statusline, | ||
\ 'ruler': &ruler, | ||
\ 'sidescroll': &sidescroll, | ||
\ 'sidescrolloff': &sidescrolloff | ||
\ } | ||
if has('gui_running') | ||
let t:goyo_revert.guioptions = &guioptions | ||
endif | ||
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" vim-gitgutter | ||
let t:goyo_disabled_gitgutter = get(g:, 'gitgutter_enabled', 0) | ||
if t:goyo_disabled_gitgutter | ||
GitGutterDisable | ||
endif | ||
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" vim-airline | ||
let t:goyo_disabled_airline = exists("#airline") | ||
if t:goyo_disabled_airline | ||
AirlineToggle | ||
endif | ||
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" vim-powerline | ||
let t:goyo_disabled_powerline = exists("#PowerlineMain") | ||
if t:goyo_disabled_powerline | ||
augroup PowerlineMain | ||
autocmd! | ||
augroup END | ||
augroup! PowerlineMain | ||
endif | ||
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if !get(g:, 'goyo_linenr', 0) | ||
setlocal nonu | ||
if exists('&rnu') | ||
setlocal nornu | ||
endif | ||
endif | ||
if exists('&colorcolumn') | ||
setlocal colorcolumn= | ||
endif | ||
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" Global options | ||
set winwidth=1 | ||
set winheight=1 | ||
set laststatus=0 | ||
set showtabline=0 | ||
set noruler | ||
set fillchars+=vert:\ | ||
set fillchars+=stl:. | ||
set fillchars+=stlnc:\ | ||
set sidescroll=1 | ||
set sidescrolloff=0 | ||
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" Hide left-hand scrollbars | ||
if has('gui_running') | ||
set guioptions-=l | ||
set guioptions-=L | ||
endif | ||
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let t:goyo_pads.l = s:init_pad('vertical new') | ||
let t:goyo_pads.r = s:init_pad('vertical rightbelow new') | ||
let t:goyo_pads.t = s:init_pad('topleft new') | ||
let t:goyo_pads.b = s:init_pad('botright new') | ||
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call s:resize_pads() | ||
call s:tranquilize() | ||
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let &statusline = repeat(' ', winwidth(0)) | ||
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if exists('g:goyo_callbacks[0]') | ||
call g:goyo_callbacks[0]() | ||
endif | ||
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augroup goyo | ||
autocmd! | ||
autocmd BufWinLeave <buffer> call s:goyo_off() | ||
autocmd TabLeave * call s:goyo_off() | ||
autocmd VimResized * call s:resize_pads() | ||
autocmd ColorScheme * call s:tranquilize() | ||
augroup END | ||
endfunction | ||
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function! s:goyo_off() | ||
if !exists('#goyo') | ||
return | ||
endif | ||
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" Oops, not this tab | ||
if !exists('t:goyo_revert') | ||
return | ||
endif | ||
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" Clear auto commands | ||
augroup goyo | ||
autocmd! | ||
augroup END | ||
augroup! goyo | ||
augroup goyop | ||
autocmd! | ||
augroup END | ||
augroup! goyop | ||
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let goyo_revert = t:goyo_revert | ||
let goyo_disabled_gitgutter = t:goyo_disabled_gitgutter | ||
let goyo_disabled_airline = t:goyo_disabled_airline | ||
let goyo_disabled_powerline = t:goyo_disabled_powerline | ||
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if tabpagenr() == 1 | ||
tabnew | ||
normal! gt | ||
bd | ||
endif | ||
tabclose | ||
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for [k, v] in items(goyo_revert) | ||
execute printf("let &%s = %s", k, string(v)) | ||
endfor | ||
execute 'colo '. g:colors_name | ||
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if goyo_disabled_gitgutter | ||
GitGutterEnable | ||
endif | ||
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if goyo_disabled_airline && !exists("#airline") | ||
AirlineToggle | ||
AirlineRefresh | ||
endif | ||
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if goyo_disabled_powerline && !exists("#PowerlineMain") | ||
doautocmd PowerlineStartup VimEnter | ||
silent! PowerlineReloadColorscheme | ||
endif | ||
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if exists('#Powerline') | ||
doautocmd Powerline ColorScheme | ||
endif | ||
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if exists('g:goyo_callbacks[1]') | ||
call g:goyo_callbacks[1]() | ||
endif | ||
endfunction | ||
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function! s:goyo(...) | ||
let width = a:0 > 0 ? a:1 : get(g:, 'goyo_width', 80) | ||
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if exists('#goyo') == 0 | ||
call s:goyo_on(width) | ||
elseif a:0 > 0 | ||
let t:goyo_width = width | ||
call s:resize_pads() | ||
else | ||
call s:goyo_off() | ||
end | ||
endfunction | ||
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command! -nargs=? Goyo call s:goyo(<args>) | ||
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let &cpo = s:cpo_save | ||
unlet s:cpo_save | ||
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