vim-airline/autoload/airline.vim

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" MIT License. Copyright (c) 2013 Bailey Ling.
" vim: ts=2 sts=2 sw=2 fdm=indent
let s:is_win32term = (has('win32') || has('win64')) && !has('gui_running')
let s:sections = ['a','b','c','gutter','x','y','z','warning']
let s:airline_highlight_map = {
\ 'mode' : 'Al2',
\ 'mode_separator' : 'Al3',
\ 'info' : 'Al4',
\ 'info_separator' : 'Al5',
\ 'statusline' : 'Al6',
\ 'file' : 'Al7',
\ }
function! s:create_builder(active)
let builder = {}
let builder._sections = []
let builder._active = a:active
function! builder.split(gutter)
call add(self._sections, ['|', a:gutter])
endfunction
function! builder.add_section(group, contents)
call add(self._sections, [a:group, a:contents])
endfunction
function! builder._group(group)
return self._active ? a:group : a:group.'_inactive'
endfunction
function! builder.build()
let line = '%{airline#update_highlight()}'
let side = 0
let prev_group = ''
for section in self._sections
if section[0] == '|'
let side = 1
let line .= section[1]
continue
endif
if prev_group != ''
let sep_group = side == 0
\ ? airline#themes#exec_highlight_separator(section[0], prev_group)
\ : airline#themes#exec_highlight_separator(prev_group, section[0])
let line .= '%#'.self._group(sep_group).'#'
let line .= side == 0
\ ? self._active ? g:airline_left_sep : g:airline_left_alt_sep
\ : self._active ? g:airline_right_sep : g:airline_right_alt_sep
endif
let line .= '%#'.self._group(section[0]).'#'.section[1]
let prev_group = section[0]
endfor
return line
endfunction
return builder
endfunction
function! airline#exec_highlight(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,
\ colors[0] != '' ? 'guifg='.colors[0] : '',
\ colors[1] != '' ? 'guibg='.colors[1] : '',
\ colors[2] != '' ? 'ctermfg='.colors[2] : '',
\ colors[3] != '' ? 'ctermbg='.colors[3] : '',
\ len(colors) > 4 && colors[4] != '' ? 'gui='.colors[4] : '',
\ len(colors) > 4 && colors[4] != '' ? 'cterm='.colors[4] : '',
\ len(colors) > 4 && colors[4] != '' ? 'term='.colors[4] : '')
endfunction
function! airline#reload_highlight()
call airline#highlight(['inactive'])
call airline#highlight(['normal'])
call airline#extensions#load_theme()
endfunction
function! airline#load_theme(name)
let g:airline_theme = a:name
let inactive_colors = g:airline#themes#{g:airline_theme}#inactive "also lazy loads the theme
let w:airline_lastmode = ''
call airline#reload_highlight()
call airline#update_highlight()
endfunction
function! airline#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')
for mode in mapped
if exists('g:airline#themes#{g:airline_theme}#{mode}')
for key in keys(g:airline#themes#{g:airline_theme}#{mode})
let colors = g:airline#themes#{g:airline_theme}#{mode}[key]
let suffix = a:modes[0] == 'inactive' ? '_inactive' : ''
call airline#exec_highlight(s:airline_highlight_map[key].suffix, colors)
endfor
endif
endfor
call airline#themes#exec_highlight_separator('Al2', 'warningmsg')
endfunction
" for 7.2 compatibility
function! s:getwinvar(winnr, key, ...)
let winvals = getwinvar(a:winnr, '')
return get(winvals, a:key, (a:0 ? a:1 : ''))
endfunction
function! s:get_section(winnr, key, ...)
let text = s:getwinvar(a:winnr, 'airline_section_'.a:key, g:airline_section_{a:key})
let [prefix, suffix] = [get(a:000, 0, '%( '), get(a:000, 1, ' %)')]
return empty(text) ? '' : prefix.text.suffix
endfunction
function! airline#get_statusline(winnr, active)
let builder = s:create_builder(a:active)
if s:getwinvar(a:winnr, 'airline_render_left', a:active || (!a:active && !g:airline_inactive_collapse))
call builder.add_section('Al2', s:get_section(a:winnr, 'a'))
call builder.add_section('Al7', '%{g:airline_detect_paste && &paste ? g:airline_paste_symbol." " : ""}')
call builder.add_section('Al4', s:get_section(a:winnr, 'b'))
call builder.add_section('Al6', s:get_section(a:winnr, 'c').' %#Al7#%{&ro ? g:airline_readonly_symbol : ""}')
else
call builder.add_section('Al6', '%f%m')
endif
call builder.split(s:get_section(a:winnr, 'gutter', '', ''))
if s:getwinvar(a:winnr, 'airline_render_right', 1)
call builder.add_section('Al6', s:get_section(a:winnr, 'x'))
call builder.add_section('Al4', s:get_section(a:winnr, 'y'))
call builder.add_section('Al2', s:get_section(a:winnr, 'z'))
if a:active
call builder.add_section('warningmsg', s:get_section(a:winnr, 'warning', '', ''))
endif
endif
return builder.build()
endfunction
function! airline#exec_funcrefs(list, break_early)
" for 7.2; we cannot iterate list, hence why we use range()
" for 7.3-[97, 328]; we cannot reuse the variable, hence the {}
for i in range(0, len(a:list) - 1)
let Fn{i} = a:list[i]
if a:break_early
if Fn{i}()
return 1
endif
else
call Fn{i}()
endif
endfor
return 0
endfunction
function! airline#update_statusline()
if airline#exec_funcrefs(g:airline_exclude_funcrefs, 1)
call setwinvar(winnr(), '&statusline', '')
return
endif
for nr in filter(range(1, winnr('$')), 'v:val != winnr()')
call setwinvar(nr, 'airline_active', 0)
call setwinvar(nr, '&statusline', airline#get_statusline(nr, 0))
endfor
let w:airline_active = 1
unlet! w:airline_render_left
unlet! w:airline_render_right
for section in s:sections
unlet! w:airline_section_{section}
endfor
call airline#exec_funcrefs(g:airline_statusline_funcrefs, 0)
call setwinvar(winnr(), '&statusline', airline#get_statusline(winnr(), 1))
endfunction
function! airline#update_highlight()
if get(w:, 'airline_active', 1)
let l:m = mode()
if l:m ==# "i"
let l:mode = ['insert']
elseif l:m ==# "R"
let l:mode = ['replace']
elseif l:m =~# '\v(v|V||s|S|)'
let l:mode = ['visual']
else
let l:mode = ['normal']
endif
let w:airline_current_mode = get(g:airline_mode_map, l:m, l:m)
else
let l:mode = ['inactive']
let w:airline_current_mode = get(g:airline_mode_map, '__')
endif
if g:airline_detect_modified && &modified | call add(l:mode, 'modified') | endif
if g:airline_detect_paste && &paste | call add(l:mode, 'paste') | endif
let mode_string = join(l:mode)
if get(w:, 'airline_lastmode', '') != mode_string
call airline#highlight(l:mode)
let w:airline_lastmode = mode_string
endif
return ''
endfunction