dotfiles/.vim/pack/plugins/start/vim-gitgutter/autoload/gitgutter/highlight.vim
2024-11-22 13:42:28 +01:00

246 lines
9.4 KiB
VimL

function! gitgutter#highlight#line_disable() abort
let g:gitgutter_highlight_lines = 0
call s:define_sign_line_highlights()
if !g:gitgutter_signs
call gitgutter#sign#clear_signs(bufnr(''))
endif
redraw!
endfunction
function! gitgutter#highlight#line_enable() abort
let old_highlight_lines = g:gitgutter_highlight_lines
let g:gitgutter_highlight_lines = 1
call s:define_sign_line_highlights()
if !old_highlight_lines && !g:gitgutter_signs
call gitgutter#all(1)
endif
redraw!
endfunction
function! gitgutter#highlight#line_toggle() abort
if g:gitgutter_highlight_lines
call gitgutter#highlight#line_disable()
else
call gitgutter#highlight#line_enable()
endif
endfunction
function! gitgutter#highlight#linenr_disable() abort
let g:gitgutter_highlight_linenrs = 0
call s:define_sign_linenr_highlights()
if !g:gitgutter_signs
call gitgutter#sign#clear_signs(bufnr(''))
endif
redraw!
endfunction
function! gitgutter#highlight#linenr_enable() abort
let old_highlight_linenrs = g:gitgutter_highlight_linenrs
let g:gitgutter_highlight_linenrs = 1
call s:define_sign_linenr_highlights()
if !old_highlight_linenrs && !g:gitgutter_signs
call gitgutter#all(1)
endif
redraw!
endfunction
function! gitgutter#highlight#linenr_toggle() abort
if g:gitgutter_highlight_linenrs
call gitgutter#highlight#linenr_disable()
else
call gitgutter#highlight#linenr_enable()
endif
endfunction
function! gitgutter#highlight#define_highlights() abort
let [guibg, ctermbg] = s:get_background_colors('SignColumn')
" Highlights used by the signs.
" When they are invisible.
execute "highlight GitGutterAddInvisible guifg=bg guibg=" . guibg . " ctermfg=" . ctermbg . " ctermbg=" . ctermbg
execute "highlight GitGutterChangeInvisible guifg=bg guibg=" . guibg . " ctermfg=" . ctermbg . " ctermbg=" . ctermbg
execute "highlight GitGutterDeleteInvisible guifg=bg guibg=" . guibg . " ctermfg=" . ctermbg . " ctermbg=" . ctermbg
highlight default link GitGutterChangeDeleteInvisible GitGutterChangeInvisible
" When they are visible.
for type in ["Add", "Change", "Delete"]
if hlexists("GitGutter".type) && s:get_foreground_colors("GitGutter".type) != ['NONE', 'NONE']
if g:gitgutter_set_sign_backgrounds
execute "highlight GitGutter".type." guibg=".guibg." ctermbg=".ctermbg
endif
continue
elseif s:useful_diff_colours()
let [guifg, ctermfg] = s:get_foreground_colors('Diff'.type)
else
let [guifg, ctermfg] = s:get_foreground_fallback_colors(type)
endif
execute "highlight GitGutter".type." guifg=".guifg." guibg=".guibg." ctermfg=".ctermfg." ctermbg=".ctermbg
endfor
if hlexists("GitGutterChangeDelete") && g:gitgutter_set_sign_backgrounds
execute "highlight GitGutterChangeDelete guibg=".guibg." ctermbg=".ctermbg
endif
highlight default link GitGutterChangeDelete GitGutterChange
" Highlights used for the whole line.
highlight default link GitGutterAddLine DiffAdd
highlight default link GitGutterChangeLine DiffChange
highlight default link GitGutterDeleteLine DiffDelete
highlight default link GitGutterChangeDeleteLine GitGutterChangeLine
highlight default link GitGutterAddLineNr CursorLineNr
highlight default link GitGutterChangeLineNr CursorLineNr
highlight default link GitGutterDeleteLineNr CursorLineNr
highlight default link GitGutterChangeDeleteLineNr GitGutterChangeLineNr
" Highlights used intra line.
highlight default GitGutterAddIntraLine gui=reverse cterm=reverse
highlight default GitGutterDeleteIntraLine gui=reverse cterm=reverse
" Set diff syntax colours (used in the preview window) - diffAdded,diffChanged,diffRemoved -
" to match the signs, if not set aleady.
for [dtype,type] in [['Added','Add'], ['Changed','Change'], ['Removed','Delete']]
if !hlexists('diff'.dtype)
let [guifg, ctermfg] = s:get_foreground_colors('GitGutter'.type)
execute "highlight diff".dtype." guifg=".guifg." ctermfg=".ctermfg." guibg=NONE ctermbg=NONE"
endif
endfor
endfunction
function! gitgutter#highlight#define_signs() abort
sign define GitGutterLineAdded
sign define GitGutterLineModified
sign define GitGutterLineRemoved
sign define GitGutterLineRemovedFirstLine
sign define GitGutterLineRemovedAboveAndBelow
sign define GitGutterLineModifiedRemoved
call s:define_sign_text()
call gitgutter#highlight#define_sign_text_highlights()
call s:define_sign_line_highlights()
call s:define_sign_linenr_highlights()
endfunction
function! s:define_sign_text() abort
execute "sign define GitGutterLineAdded text=" . g:gitgutter_sign_added
execute "sign define GitGutterLineModified text=" . g:gitgutter_sign_modified
execute "sign define GitGutterLineRemoved text=" . g:gitgutter_sign_removed
execute "sign define GitGutterLineRemovedFirstLine text=" . g:gitgutter_sign_removed_first_line
execute "sign define GitGutterLineRemovedAboveAndBelow text=" . g:gitgutter_sign_removed_above_and_below
execute "sign define GitGutterLineModifiedRemoved text=" . g:gitgutter_sign_modified_removed
endfunction
function! gitgutter#highlight#define_sign_text_highlights() abort
" Once a sign's text attribute has been defined, it cannot be undefined or
" set to an empty value. So to make signs' text disappear (when toggling
" off or disabling) we make them invisible by setting their foreground colours
" to the background's.
if g:gitgutter_signs
sign define GitGutterLineAdded texthl=GitGutterAdd
sign define GitGutterLineModified texthl=GitGutterChange
sign define GitGutterLineRemoved texthl=GitGutterDelete
sign define GitGutterLineRemovedFirstLine texthl=GitGutterDelete
sign define GitGutterLineRemovedAboveAndBelow texthl=GitGutterDelete
sign define GitGutterLineModifiedRemoved texthl=GitGutterChangeDelete
else
sign define GitGutterLineAdded texthl=GitGutterAddInvisible
sign define GitGutterLineModified texthl=GitGutterChangeInvisible
sign define GitGutterLineRemoved texthl=GitGutterDeleteInvisible
sign define GitGutterLineRemovedFirstLine texthl=GitGutterDeleteInvisible
sign define GitGutterLineRemovedAboveAndBelow texthl=GitGutterDeleteInvisible
sign define GitGutterLineModifiedRemoved texthl=GitGutterChangeDeleteInvisible
endif
endfunction
function! s:define_sign_line_highlights() abort
if g:gitgutter_highlight_lines
sign define GitGutterLineAdded linehl=GitGutterAddLine
sign define GitGutterLineModified linehl=GitGutterChangeLine
sign define GitGutterLineRemoved linehl=GitGutterDeleteLine
sign define GitGutterLineRemovedFirstLine linehl=GitGutterDeleteLine
sign define GitGutterLineRemovedAboveAndBelow linehl=GitGutterDeleteLine
sign define GitGutterLineModifiedRemoved linehl=GitGutterChangeDeleteLine
else
sign define GitGutterLineAdded linehl=NONE
sign define GitGutterLineModified linehl=NONE
sign define GitGutterLineRemoved linehl=NONE
sign define GitGutterLineRemovedFirstLine linehl=NONE
sign define GitGutterLineRemovedAboveAndBelow linehl=NONE
sign define GitGutterLineModifiedRemoved linehl=NONE
endif
endfunction
function! s:define_sign_linenr_highlights() abort
if has('nvim-0.3.2')
try
if g:gitgutter_highlight_linenrs
sign define GitGutterLineAdded numhl=GitGutterAddLineNr
sign define GitGutterLineModified numhl=GitGutterChangeLineNr
sign define GitGutterLineRemoved numhl=GitGutterDeleteLineNr
sign define GitGutterLineRemovedFirstLine numhl=GitGutterDeleteLineNr
sign define GitGutterLineRemovedAboveAndBelow numhl=GitGutterDeleteLineNr
sign define GitGutterLineModifiedRemoved numhl=GitGutterChangeDeleteLineNr
else
sign define GitGutterLineAdded numhl=NONE
sign define GitGutterLineModified numhl=NONE
sign define GitGutterLineRemoved numhl=NONE
sign define GitGutterLineRemovedFirstLine numhl=NONE
sign define GitGutterLineRemovedAboveAndBelow numhl=NONE
sign define GitGutterLineModifiedRemoved numhl=NONE
endif
catch /E475/
endtry
endif
endfunction
function! s:get_hl(group, what, mode) abort
let r = synIDattr(synIDtrans(hlID(a:group)), a:what, a:mode)
if empty(r) || r == -1
return 'NONE'
endif
return r
endfunction
function! s:get_foreground_colors(group) abort
let ctermfg = s:get_hl(a:group, 'fg', 'cterm')
let guifg = s:get_hl(a:group, 'fg', 'gui')
return [guifg, ctermfg]
endfunction
function! s:get_background_colors(group) abort
let ctermbg = s:get_hl(a:group, 'bg', 'cterm')
let guibg = s:get_hl(a:group, 'bg', 'gui')
return [guibg, ctermbg]
endfunction
function! s:useful_diff_colours()
let [guifg_add, ctermfg_add] = s:get_foreground_colors('DiffAdd')
let [guifg_del, ctermfg_del] = s:get_foreground_colors('DiffDelete')
return guifg_add != guifg_del && ctermfg_add != ctermfg_del
endfunction
function! s:get_foreground_fallback_colors(type)
if a:type == 'Add'
return ['#009900', '2']
elseif a:type == 'Change'
return ['#bbbb00', '3']
elseif a:type == 'Delete'
return ['#ff2222', '1']
endif
endfunction