vim-airline-themes/autoload/airline/highlighter.vim

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" MIT License. Copyright (c) 2013 Bailey Ling.
" vim: et ts=2 sts=2 sw=2
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let s:is_win32term = (has('win32') || has('win64')) && !has('gui_running')
function! airline#highlighter#exec(group, colors)
let colors = a:colors
if s:is_win32term
let colors = map(a:colors, 'v:val != "" && v:val > 128 ? v:val - 128 : v:val')
endif
exec printf('hi %s %s %s %s %s %s %s %s',
\ a:group,
\ get(colors, 0, '') != '' ? 'guifg='.colors[0] : '',
\ get(colors, 1, '') != '' ? 'guibg='.colors[1] : '',
\ get(colors, 2, '') != '' ? 'ctermfg='.colors[2] : '',
\ get(colors, 3, '') != '' ? 'ctermbg='.colors[3] : '',
\ get(colors, 4, '') != '' ? 'gui='.colors[4] : '',
\ get(colors, 4, '') != '' ? 'cterm='.colors[4] : '',
\ get(colors, 4, '') != '' ? 'term='.colors[4] : '')
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endfunction
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function! s:exec_separator(dict, from, to, invert)
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let l:from = airline#themes#get_highlight(a:from)
let l:to = airline#themes#get_highlight(a:to)
let group = a:from.'_to_'.a:to
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let colors = [ l:to[1], l:from[1], l:to[3], l:from[3], a:invert ? 'inverse' : '' ]
let a:dict[group] = colors
call airline#highlighter#exec(group, colors)
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endfunction
function! airline#highlighter#new()
let highlighter = {}
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let highlighter._separators = {}
let highlighter._mode_init = {}
function! highlighter.load_theme()
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let self._mode_init = {}
call self.highlight(['inactive'])
call self.highlight(['normal'])
endfunction
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function! highlighter.add_separator(from, to, invert)
let self._separators[a:from.a:to] = [a:from, a:to, a:invert]
endfunction
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function! highlighter.highlight(modes)
" draw the base mode, followed by any overrides
let mapped = map(a:modes, 'v:val == a:modes[0] ? v:val : a:modes[0]."_".v:val')
let suffix = a:modes[0] == 'inactive' ? '_inactive' : ''
for mode in mapped
if exists('g:airline#themes#{g:airline_theme}#{mode}')
let dict = g:airline#themes#{g:airline_theme}#{mode}
for kvp in items(dict)
call airline#highlighter#exec(kvp[0].suffix, kvp[1])
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endfor
" initialize separator colors for this mode if necessary
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if !has_key(self._mode_init, mode)
let self._mode_init[mode] = 1
for sep in items(self._separators)
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call <sid>exec_separator(dict, sep[1][0].suffix, sep[1][1].suffix, sep[1][2])
endfor
endif
endif
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endfor
endfunction
return highlighter
endfunction