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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_sign_column_highlight() abort
if g:gitgutter_override_sign_column_highlight
highlight! link SignColumn LineNr
else
highlight default link SignColumn LineNr
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.
" By default use Diff* foreground colors with SignColumn's background.
for type in ['Add', 'Change', 'Delete']
let [guifg, ctermfg] = s:get_foreground_colors('Diff'.type)
execute "highlight GitGutter".type."Default guifg=".guifg." guibg=".guibg." ctermfg=".ctermfg." ctermbg=".ctermbg
execute "highlight default link GitGutter".type." GitGutter".type."Default"
endfor
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 CursorLineNr
" Highlights used intra line.
highlight GitGutterAddIntraLine gui=reverse cterm=reverse
highlight GitGutterDeleteIntraLine gui=reverse cterm=reverse
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=
sign define GitGutterLineModified linehl=
sign define GitGutterLineRemoved linehl=
sign define GitGutterLineRemovedFirstLine linehl=
sign define GitGutterLineRemovedAboveAndBelow linehl=
sign define GitGutterLineModifiedRemoved linehl=
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=
sign define GitGutterLineModified numhl=
sign define GitGutterLineRemoved numhl=
sign define GitGutterLineRemovedFirstLine numhl=
sign define GitGutterLineRemovedAboveAndBelow numhl=
sign define GitGutterLineModifiedRemoved numhl=
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
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