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" MIT License. Copyright (c) 2013-2014 Bailey Ling.
" vim: et ts=2 sts=2 sw=2
let s:is_win32term = (has('win32') || has('win64')) && !has('gui_running')
let s:separators = {}
let s:accents = {}
function! s:gui2cui(rgb, fallback)
if a:rgb == ''
return a:fallback
endif
let rgb = map(matchlist(a:rgb, '#\(..\)\(..\)\(..\)')[1:3], '0 + ("0x".v:val)')
let rgb = [rgb[0] > 127 ? 4 : 0, rgb[1] > 127 ? 2 : 0, rgb[2] > 127 ? 1 : 0]
return rgb[0]+rgb[1]+rgb[2]
endfunction
function! s:get_syn(group, what)
" need to pass in mode, known to break on 7.3.547
let mode = has('gui_running') ? 'gui' : 'cterm'
let color = synIDattr(synIDtrans(hlID(a:group)), a:what, mode)
if empty(color) || color == -1
let color = synIDattr(synIDtrans(hlID('Normal')), a:what, mode)
endif
if empty(color) || color == -1
if has('gui_running')
let color = a:what ==# 'fg' ? '#000000' : '#FFFFFF'
else
let color = a:what ==# 'fg' ? 0 : 1
endif
endif
return color
endfunction
function! s:get_array(fg, bg, opts)
let fg = a:fg
let bg = a:bg
return has('gui_running')
\ ? [ fg, bg, '', '', join(a:opts, ',') ]
\ : [ '', '', fg, bg, join(a:opts, ',') ]
endfunction
function! airline#highlighter#get_highlight(group, ...)
let fg = s:get_syn(a:group, 'fg')
let bg = s:get_syn(a:group, 'bg')
let reverse = synIDattr(synIDtrans(hlID(a:group)), 'reverse', has('gui_running') ? 'gui' : 'term')
return reverse ? s:get_array(bg, fg, a:000) : s:get_array(fg, bg, a:000)
endfunction
function! airline#highlighter#get_highlight2(fg, bg, ...)
let fg = s:get_syn(a:fg[0], a:fg[1])
let bg = s:get_syn(a:bg[0], a:bg[1])
return s:get_array(fg, bg, a:000)
endfunction
function! airline#highlighter#exec(group, colors)
let colors = a:colors
if s:is_win32term
let colors[2] = s:gui2cui(get(colors, 0, ''), get(colors, 2, ''))
let colors[3] = s:gui2cui(get(colors, 1, ''), get(colors, 3, ''))
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] : '')
endfunction
function! s:exec_separator(dict, from, to, inverse, suffix)
let l:from = airline#themes#get_highlight(a:from.a:suffix)
let l:to = airline#themes#get_highlight(a:to.a:suffix)
let group = a:from.'_to_'.a:to.a:suffix
if a:inverse
let colors = [ l:from[1], l:to[1], l:from[3], l:to[3] ]
else
let colors = [ l:to[1], l:from[1], l:to[3], l:from[3] ]
endif
let a:dict[group] = colors
call airline#highlighter#exec(group, colors)
endfunction
function! airline#highlighter#load_theme()
for winnr in filter(range(1, winnr('$')), 'v:val != winnr()')
call airline#highlighter#highlight_modified_inactive(winbufnr(winnr))
endfor
call airline#highlighter#highlight(['inactive'])
call airline#highlighter#highlight(['normal'])
endfunction
function! airline#highlighter#add_separator(from, to, inverse)
let s:separators[a:from.a:to] = [a:from, a:to, a:inverse]
call <sid>exec_separator({}, a:from, a:to, a:inverse, '')
endfunction
function! airline#highlighter#add_accent(accent)
let s:accents[a:accent] = 1
endfunction
function! airline#highlighter#highlight_modified_inactive(bufnr)
if getbufvar(a:bufnr, '&modified')
let colors = exists('g:airline#themes#{g:airline_theme}#palette.inactive_modified.airline_c')
\ ? g:airline#themes#{g:airline_theme}#palette.inactive_modified.airline_c : []
else
let colors = exists('g:airline#themes#{g:airline_theme}#palette.inactive.airline_c')
\ ? g:airline#themes#{g:airline_theme}#palette.inactive.airline_c : []
endif
if !empty(colors)
call airline#highlighter#exec('airline_c'.(a:bufnr).'_inactive', colors)
endif
endfunction
function! airline#highlighter#highlight(modes)
let p = g:airline#themes#{g:airline_theme}#palette
" 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}#palette[mode]')
let dict = g:airline#themes#{g:airline_theme}#palette[mode]
for kvp in items(dict)
let mode_colors = kvp[1]
call airline#highlighter#exec(kvp[0].suffix, mode_colors)
for accent in keys(s:accents)
if !has_key(p.accents, accent)
continue
endif
let colors = copy(mode_colors)
if p.accents[accent][0] != ''
let colors[0] = p.accents[accent][0]
endif
if p.accents[accent][2] != ''
let colors[2] = p.accents[accent][2]
endif
if len(colors) >= 5
let colors[4] = get(p.accents[accent], 4, '')
else
call add(colors, get(p.accents[accent], 4, ''))
endif
call airline#highlighter#exec(kvp[0].suffix.'_'.accent, colors)
endfor
endfor
" TODO: optimize this
for sep in items(s:separators)
call <sid>exec_separator(dict, sep[1][0], sep[1][1], sep[1][2], suffix)
endfor
endif
endfor
endfunction
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