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Diffstat (limited to 'dotfiles/.vim/autoload/airline/highlighter.vim')
| -rw-r--r-- | dotfiles/.vim/autoload/airline/highlighter.vim | 319 |
1 files changed, 319 insertions, 0 deletions
diff --git a/dotfiles/.vim/autoload/airline/highlighter.vim b/dotfiles/.vim/autoload/airline/highlighter.vim new file mode 100644 index 0000000..5d4a7d7 --- /dev/null +++ b/dotfiles/.vim/autoload/airline/highlighter.vim @@ -0,0 +1,319 @@ +" MIT License. Copyright (c) 2013-2018 Bailey Ling et al. +" vim: et ts=2 sts=2 sw=2 + +scriptencoding utf-8 + +let s:is_win32term = (has('win32') || has('win64')) && + \ !has('gui_running') && + \ (empty($CONEMUBUILD) || &term !=? 'xterm') && + \ !(exists("+termguicolors") && &termguicolors) + +let s:separators = {} +let s:accents = {} +let s:hl_groups = {} + +function! s:gui2cui(rgb, fallback) + if a:rgb == '' + return a:fallback + elseif match(a:rgb, '^\%(NONE\|[fb]g\)$') > -1 + return a:rgb + endif + let rgb = map(split(a:rgb[1:], '..\zs'), '0 + ("0x".v:val)') + return airline#msdos#round_msdos_colors(rgb) +endfunction + +function! s:group_not_done(list, name) + if index(a:list, a:name) == -1 + call add(a:list, a:name) + return 1 + else + if &vbs + echomsg printf("airline: group: %s already done, skipping", a:name) + endif + return 0 + endif +endfu + +function! s:get_syn(group, what) + if !exists("g:airline_gui_mode") + let g:airline_gui_mode = airline#init#gui_mode() + endif + let color = '' + if hlexists(a:group) + let color = synIDattr(synIDtrans(hlID(a:group)), a:what, g:airline_gui_mode) + endif + if empty(color) || color == -1 + " should always exists + let color = synIDattr(synIDtrans(hlID('Normal')), a:what, g:airline_gui_mode) + " however, just in case + if empty(color) || color == -1 + let color = 'NONE' + endif + endif + return color +endfunction + +function! s:get_array(fg, bg, opts) + let opts=empty(a:opts) ? '' : join(a:opts, ',') + return g:airline_gui_mode ==# 'gui' + \ ? [ a:fg, a:bg, '', '', opts ] + \ : [ '', '', a:fg, a:bg, opts ] +endfunction + +function! airline#highlighter#reset_hlcache() + let s:hl_groups = {} +endfunction + +function! airline#highlighter#get_highlight(group, ...) + let reverse = get(g:, 'airline_gui_mode', '') ==# 'gui' + \ ? synIDattr(synIDtrans(hlID(a:group)), 'reverse', 'gui') + \ : synIDattr(synIDtrans(hlID(a:group)), 'reverse', 'cterm') + \|| synIDattr(synIDtrans(hlID(a:group)), 'reverse', 'term') + if get(g:, 'airline_highlighting_cache', 0) && has_key(s:hl_groups, a:group) + let res = s:hl_groups[a:group] + return reverse ? [ res[1], res[0], res[3], res[2], res[4] ] : res + else + let fg = s:get_syn(a:group, 'fg') + let bg = s:get_syn(a:group, 'bg') + let bold = synIDattr(synIDtrans(hlID(a:group)), 'bold') + if reverse + let res = s:get_array(bg, fg, bold ? ['bold'] : a:000) + else + let res = s:get_array(fg, bg, bold ? ['bold'] : a:000) + endif + endif + let s:hl_groups[a:group] = res + return res +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! s:hl_group_exists(group) + if !hlexists(a:group) + return 0 + elseif empty(synIDattr(hlID(a:group), 'fg')) + return 0 + endif + return 1 +endfunction + +function! airline#highlighter#exec(group, colors) + if pumvisible() + return + endif + 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 + let old_hi = airline#highlighter#get_highlight(a:group) + if len(colors) == 4 + call add(colors, '') + endif + if g:airline_gui_mode ==# 'gui' + let new_hi = [colors[0], colors[1], '', '', colors[4]] + else + let new_hi = ['', '', printf("%s", colors[2]), printf("%s", colors[3]), colors[4]] + endif + let colors = s:CheckDefined(colors) + if old_hi != new_hi || !s:hl_group_exists(a:group) + let cmd = printf('hi %s%s', a:group, s:GetHiCmd(colors)) + exe cmd + if has_key(s:hl_groups, a:group) + let s:hl_groups[a:group] = colors + endif + endif +endfunction + +function! s:CheckDefined(colors) + " Checks, whether the definition of the colors is valid and is not empty or NONE + " e.g. if the colors would expand to this: + " hi airline_c ctermfg=NONE ctermbg=NONE + " that means to clear that highlighting group, therefore, fallback to Normal + " highlighting group for the cterm values + + " This only works, if the Normal highlighting group is actually defined, so + " return early, if it has been cleared + if !exists("g:airline#highlighter#normal_fg_hi") + let g:airline#highlighter#normal_fg_hi = synIDattr(synIDtrans(hlID('Normal')), 'fg', 'cterm') + endif + if empty(g:airline#highlighter#normal_fg_hi) || g:airline#highlighter#normal_fg_hi < 0 + return a:colors + endif + + for val in a:colors + if !empty(val) && val !=# 'NONE' + return a:colors + endif + endfor + " this adds the bold attribute to the term argument of the :hi command, + " but at least this makes sure, the group will be defined + let fg = g:airline#highlighter#normal_fg_hi + let bg = synIDattr(synIDtrans(hlID('Normal')), 'bg', 'cterm') + if bg < 0 + " in case there is no background color defined for Normal + let bg = a:colors[3] + endif + return a:colors[0:1] + [fg, bg] + [a:colors[4]] +endfunction + +function! s:GetHiCmd(list) + " a:list needs to have 5 items! + let res = '' + let i = -1 + while i < 4 + let i += 1 + let item = get(a:list, i, '') + if item is '' + continue + endif + if i == 0 + let res .= ' guifg='.item + elseif i == 1 + let res .= ' guibg='.item + elseif i == 2 + let res .= ' ctermfg='.item + elseif i == 3 + let res .= ' ctermbg='.item + elseif i == 4 + let res .= printf(' gui=%s cterm=%s term=%s', item, item, item) + endif + endwhile + return res +endfunction + +function! s:exec_separator(dict, from, to, inverse, suffix) + if pumvisible() + return + endif + let group = a:from.'_to_'.a:to.a:suffix + let l:from = airline#themes#get_highlight(a:from.a:suffix) + let l:to = airline#themes#get_highlight(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() + if pumvisible() + return + endif + for winnr in filter(range(1, winnr('$')), 'v:val != winnr()') + call airline#highlighter#highlight_modified_inactive(winbufnr(winnr)) + endfor + call airline#highlighter#highlight(['inactive']) + if getbufvar( bufnr('%'), '&modified' ) + call airline#highlighter#highlight(['normal', 'modified']) + else + call airline#highlighter#highlight(['normal']) + endif +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 bufnr = a:0 ? a:1 : '' + 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' : '' + let airline_grouplist = [] + let buffers_in_tabpage = sort(tabpagebuflist()) + if exists("*uniq") + let buffers_in_tabpage = uniq(buffers_in_tabpage) + endif + " mapped might be something like ['normal', 'normal_modified'] + " if a group is in both modes available, only define the second + " that is how this was done previously overwrite the previous definition + for mode in reverse(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] + let name = kvp[0] + if name is# 'airline_c' && !empty(bufnr) && suffix is# '_inactive' + let name = 'airline_c'.bufnr + endif + " do not re-create highlighting for buffers that are no longer visible + " in the current tabpage + if name =~# 'airline_c\d\+' + let bnr = matchstr(name, 'airline_c\zs\d\+') + 0 + if bnr > 0 && index(buffers_in_tabpage, bnr) == -1 + continue + endif + elseif (name =~# '_to_') || (name[0:10] is# 'airline_tab' && !empty(suffix)) + " group will be redefined below at exec_separator + " or is not needed for tabline with '_inactive' suffix + " since active flag is 1 for builder) + continue + endif + if s:group_not_done(airline_grouplist, name.suffix) + call airline#highlighter#exec(name.suffix, mode_colors) + endif + + 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 + if s:group_not_done(airline_grouplist, name.suffix.'_'.accent) + call airline#highlighter#exec(name.suffix.'_'.accent, colors) + endif + endfor + endfor + + if empty(s:separators) + " nothing to be done + continue + endif + " TODO: optimize this + for sep in items(s:separators) + " we cannot check, that the group already exists, else the separators + " might not be correctly defined. But perhaps we can skip above groups + " that match the '_to_' name, because they would be redefined here... + call <sid>exec_separator(dict, sep[1][0], sep[1][1], sep[1][2], suffix) + endfor + endif + endfor +endfunction |