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if exists("g:loaded_syntastic_notifier_signs") || !exists("g:loaded_syntastic_plugin")
finish
endif
let g:loaded_syntastic_notifier_signs = 1
" Initialisation {{{1
" start counting sign ids at 5000, start here to hopefully avoid conflicting
" with any other code that places signs (not sure if this precaution is
" actually needed)
let s:first_sign_id = 5000
let s:next_sign_id = s:first_sign_id
let g:SyntasticSignsNotifier = {}
let s:setup_done = 0
" }}}1
" Public methods {{{1
function! g:SyntasticSignsNotifier.New() " {{{2
let newObj = copy(self)
if !s:setup_done
call self._setup()
let s:setup_done = 1
lockvar s:setup_done
endif
return newObj
endfunction " }}}2
function! g:SyntasticSignsNotifier.enabled() " {{{2
return has('signs') && syntastic#util#var('enable_signs')
endfunction " }}}2
function! g:SyntasticSignsNotifier.refresh(loclist) " {{{2
call syntastic#log#debug(g:_SYNTASTIC_DEBUG_NOTIFICATIONS, 'signs: refresh')
let old_signs = copy(self._bufSignIds())
if self.enabled()
call self._signErrors(a:loclist)
endif
call self._removeSigns(old_signs)
endfunction " }}}2
" }}}1
" Private methods {{{1
" One time setup: define our own sign types and highlighting
function! g:SyntasticSignsNotifier._setup() " {{{2
if has('signs')
if !hlexists('SyntasticErrorSign')
highlight link SyntasticErrorSign error
endif
if !hlexists('SyntasticWarningSign')
highlight link SyntasticWarningSign todo
endif
if !hlexists('SyntasticStyleErrorSign')
highlight link SyntasticStyleErrorSign SyntasticErrorSign
endif
if !hlexists('SyntasticStyleWarningSign')
highlight link SyntasticStyleWarningSign SyntasticWarningSign
endif
if !hlexists('SyntasticStyleErrorLine')
highlight link SyntasticStyleErrorLine SyntasticErrorLine
endif
if !hlexists('SyntasticStyleWarningLine')
highlight link SyntasticStyleWarningLine SyntasticWarningLine
endif
" define the signs used to display syntax and style errors/warns
execute 'sign define SyntasticError text=' . g:syntastic_error_symbol .
\ ' texthl=SyntasticErrorSign linehl=SyntasticErrorLine'
execute 'sign define SyntasticWarning text=' . g:syntastic_warning_symbol .
\ ' texthl=SyntasticWarningSign linehl=SyntasticWarningLine'
execute 'sign define SyntasticStyleError text=' . g:syntastic_style_error_symbol .
\ ' texthl=SyntasticStyleErrorSign linehl=SyntasticStyleErrorLine'
execute 'sign define SyntasticStyleWarning text=' . g:syntastic_style_warning_symbol .
\ ' texthl=SyntasticStyleWarningSign linehl=SyntasticStyleWarningLine'
endif
endfunction " }}}2
" Place signs by all syntax errors in the buffer
function! g:SyntasticSignsNotifier._signErrors(loclist) " {{{2
let loclist = a:loclist
if !loclist.isEmpty()
let buf = bufnr('')
if !bufloaded(buf)
" signs can be placed only in loaded buffers
return
endif
" errors come first, so that they are not masked by warnings
let issues = copy(loclist.errors())
call extend(issues, loclist.warnings())
call filter(issues, 'v:val["bufnr"] == buf')
let seen = {}
for i in issues
if i['lnum'] > 0 && !has_key(seen, i['lnum'])
let seen[i['lnum']] = 1
let sign_severity = i['type'] ==? 'W' ? 'Warning' : 'Error'
let sign_subtype = get(i, 'subtype', '')
let sign_type = 'Syntastic' . sign_subtype . sign_severity
execute "sign place " . s:next_sign_id . " line=" . i['lnum'] . " name=" . sign_type . " buffer=" . i['bufnr']
call add(self._bufSignIds(), s:next_sign_id)
let s:next_sign_id += 1
endif
endfor
endif
endfunction " }}}2
" Remove the signs with the given ids from this buffer
function! g:SyntasticSignsNotifier._removeSigns(ids) " {{{2
if has('signs')
for s in reverse(copy(a:ids))
execute "sign unplace " . s
call remove(self._bufSignIds(), index(self._bufSignIds(), s))
endfor
endif
endfunction " }}}2
" Get all the ids of the SyntaxError signs in the buffer
function! g:SyntasticSignsNotifier._bufSignIds() " {{{2
if !exists("b:syntastic_private_sign_ids")
let b:syntastic_private_sign_ids = []
endif
return b:syntastic_private_sign_ids
endfunction " }}}2
" }}}1
" vim: set sw=4 sts=4 et fdm=marker: