+let s:use_vim_popup = has('patch-8.1.1517') && g:lsp_preview_float && !has('nvim')
+let s:use_nvim_float = exists('*nvim_open_win') && g:lsp_preview_float && has('nvim')
+let s:use_preview = !s:use_vim_popup && !s:use_nvim_float
+
+function! s:import_modules() abort
+ if exists('s:Markdown') | return | endif
+ let s:Markdown = vital#lsp#import('VS.Vim.Syntax.Markdown')
+ let s:MarkupContent = vital#lsp#import('VS.LSP.MarkupContent')
+ let s:Window = vital#lsp#import('VS.Vim.Window')
+ let s:Text = vital#lsp#import('VS.LSP.Text')
+endfunction
+
+let s:winid = v:false
+let s:prevwin = v:false
+let s:preview_data = v:false
+
+function! s:vim_popup_closed(...) abort
+ let s:preview_data = v:false
+endfunction
+
+function! lsp#ui#vim#output#closepreview() abort
+ if win_getid() ==# s:winid
+ " Don't close if window got focus
+ return
+ endif
+
+ if s:winid == v:false
+ return
+ endif
+
+ "closing floats in vim8.1 must use popup_close()
+ "nvim must use nvim_win_close. pclose is not reliable and does not always work
+ if s:use_vim_popup && s:winid
+ call popup_close(s:winid)
+ elseif s:use_nvim_float && s:winid
+ silent! call nvim_win_close(s:winid, 0)
+ else
+ pclose
+ endif
+ let s:winid = v:false
+ let s:preview_data = v:false
+ augroup lsp_float_preview_close
+ augroup end
+ autocmd! lsp_float_preview_close CursorMoved,CursorMovedI,VimResized *
+ doautocmd <nomodeline> User lsp_float_closed
+endfunction
+
+function! lsp#ui#vim#output#focuspreview() abort
+ if s:is_cmdwin()
+ return
+ endif
+
+ " This does not work for vim8.1 popup but will work for nvim and old preview
+ if s:winid
+ if win_getid() !=# s:winid
+ let s:prevwin = win_getid()
+ call win_gotoid(s:winid)
+ elseif s:prevwin
+ " Temporarily disable hooks
+ " TODO: remove this when closing logic is able to distinguish different move directions
+ autocmd! lsp_float_preview_close CursorMoved,CursorMovedI,VimResized *
+ call win_gotoid(s:prevwin)
+ call s:add_float_closing_hooks()
+ let s:prevwin = v:false
+ endif
+ endif
+endfunction
+
+function! s:bufwidth() abort
+ let l:width = winwidth(0)
+ let l:numberwidth = max([&numberwidth, strlen(line('$'))+1])
+ let l:numwidth = (&number || &relativenumber)? l:numberwidth : 0
+ let l:foldwidth = &foldcolumn
+
+ if &signcolumn ==? 'yes'
+ let l:signwidth = 2
+ elseif &signcolumn ==? 'auto'
+ let l:signs = execute(printf('sign place buffer=%d', bufnr('')))
+ let l:signs = split(l:signs, "\n")
+ let l:signwidth = len(l:signs)>2? 2: 0
+ else
+ let l:signwidth = 0
+ endif
+ return l:width - l:numwidth - l:foldwidth - l:signwidth
+endfunction
+
+
+function! s:get_float_positioning(height, width) abort
+ let l:height = a:height
+ let l:width = a:width
+ " TODO: add option to configure it 'docked' at the bottom/top/right
+
+ " NOTE: screencol() and screenrow() start from (1,1)
+ " but the popup window co-ordinates start from (0,0)
+ " Very convenient!
+ " For a simple single-line 'tooltip', the following
+ " two lines are enough to determine the position
+
+ let l:col = screencol()
+ let l:row = screenrow()
+
+ let l:height = min([l:height, max([&lines - &cmdheight - l:row, &previewheight])])
+
+ let l:style = 'minimal'
+ let l:border = 'double'
+ " Positioning is not window but screen relative
+ let l:opts = {
+ \ 'relative': 'editor',
+ \ 'row': l:row,
+ \ 'col': l:col,
+ \ 'width': l:width,
+ \ 'height': l:height,
+ \ 'style': l:style,
+ \ 'border': l:border,
+ \ }
+ return l:opts
+endfunction
+
+function! lsp#ui#vim#output#floatingpreview(data) abort
+ if s:use_nvim_float
+ let l:buf = nvim_create_buf(v:false, v:true)
+
+ " Try to get as much space around the cursor, but at least 10x10
+ let l:width = max([s:bufwidth(), 10])
+ let l:height = max([&lines - winline() + 1, winline() - 1, 10])
+
+ if g:lsp_preview_max_height > 0
+ let l:height = min([g:lsp_preview_max_height, l:height])
+ endif
+
+ let l:opts = s:get_float_positioning(l:height, l:width)
+
+ let s:winid = nvim_open_win(l:buf, v:false, l:opts)
+ call nvim_win_set_option(s:winid, 'winhl', 'Normal:Pmenu,NormalNC:Pmenu')
+ call nvim_win_set_option(s:winid, 'foldenable', v:false)
+ call nvim_win_set_option(s:winid, 'wrap', v:true)
+ call nvim_win_set_option(s:winid, 'statusline', '')
+ call nvim_win_set_option(s:winid, 'number', v:false)
+ call nvim_win_set_option(s:winid, 'relativenumber', v:false)
+ call nvim_win_set_option(s:winid, 'cursorline', v:false)
+ call nvim_win_set_option(s:winid, 'cursorcolumn', v:false)
+ call nvim_win_set_option(s:winid, 'colorcolumn', '')
+ call nvim_win_set_option(s:winid, 'signcolumn', 'no')
+ " Enable closing the preview with esc, but map only in the scratch buffer
+ call nvim_buf_set_keymap(l:buf, 'n', '<esc>', ':pclose<cr>', {'silent': v:true})
+ elseif s:use_vim_popup
+ let l:options = {
+ \ 'moved': 'any',
+ \ 'border': [1, 1, 1, 1],
+ \ 'callback': function('s:vim_popup_closed')
+ \ }
+
+ if g:lsp_preview_max_width > 0
+ let l:options['maxwidth'] = g:lsp_preview_max_width
+ endif
+
+ if g:lsp_preview_max_height > 0
+ let l:options['maxheight'] = g:lsp_preview_max_height
+ endif
+
+ let s:winid = popup_atcursor('...', l:options)
+ endif
+ return s:winid
+endfunction
+
+function! lsp#ui#vim#output#setcontent(winid, lines, ft) abort
+ if s:use_vim_popup
+ " vim popup
+ call setbufline(winbufnr(a:winid), 1, a:lines)
+ call setbufvar(winbufnr(a:winid), '&filetype', a:ft . '.lsp-hover')
+ elseif s:use_nvim_float
+ " nvim floating
+ call nvim_buf_set_lines(winbufnr(a:winid), 0, -1, v:false, a:lines)
+ call nvim_buf_set_option(winbufnr(a:winid), 'readonly', v:true)
+ call nvim_buf_set_option(winbufnr(a:winid), 'modifiable', v:false)
+ call nvim_buf_set_option(winbufnr(a:winid), 'filetype', a:ft.'.lsp-hover')
+ call nvim_win_set_cursor(a:winid, [1, 0])
+ elseif s:use_preview
+ " preview window
+ call setbufline(winbufnr(a:winid), 1, a:lines)
+ call setbufvar(winbufnr(a:winid), '&filetype', a:ft . '.lsp-hover')
+ endif
+endfunction
+
+function! lsp#ui#vim#output#adjust_float_placement(bufferlines, maxwidth) abort
+ if s:use_nvim_float
+ let l:win_config = {}
+ let l:height = min([winheight(s:winid), a:bufferlines])
+ let l:width = min([winwidth(s:winid), a:maxwidth])
+ let l:win_config = s:get_float_positioning(l:height, l:width)
+ call nvim_win_set_config(s:winid, l:win_config )
+ endif
+endfunction
+
+function! s:add_float_closing_hooks() abort
+ if g:lsp_preview_autoclose
+ augroup lsp_float_preview_close
+ autocmd! lsp_float_preview_close CursorMoved,CursorMovedI,VimResized *
+ autocmd CursorMoved,CursorMovedI,VimResized * call lsp#ui#vim#output#closepreview()
+ augroup END
+ endif
+endfunction
+
+function! lsp#ui#vim#output#getpreviewwinid() abort
+ return s:winid
+endfunction
+
+function! s:open_preview(data) abort
+ if s:use_vim_popup || s:use_nvim_float
+ let l:winid = lsp#ui#vim#output#floatingpreview(a:data)
+ else
+ execute &previewheight.'new'
+ let l:winid = win_getid()
+ endif
+ return l:winid
+endfunction
+
+function! s:set_cursor(current_window_id, options) abort
+ if !has_key(a:options, 'cursor')
+ return
+ endif
+
+ if s:use_nvim_float
+ " Neovim floats
+ " Go back to the preview window to set the cursor
+ call win_gotoid(s:winid)
+ let l:old_scrolloff = &scrolloff
+ let &scrolloff = 0
+
+ call nvim_win_set_cursor(s:winid, [a:options['cursor']['line'], a:options['cursor']['col']])
+ call s:align_preview(a:options)
+
+ " Finally, go back to the original window
+ call win_gotoid(a:current_window_id)
+
+ let &scrolloff = l:old_scrolloff
+ elseif s:use_vim_popup
+ " Vim popups
+ function! AlignVimPopup(timer) closure abort
+ call s:align_preview(a:options)
+ endfunction
+ call timer_start(0, function('AlignVimPopup'))
+ else
+ " Preview
+ " Don't use 'scrolloff', it might mess up the cursor's position
+ let &l:scrolloff = 0
+ call cursor(a:options['cursor']['line'], a:options['cursor']['col'])
+ call s:align_preview(a:options)
+ endif
+endfunction
+
+function! s:align_preview(options) abort
+ if !has_key(a:options, 'cursor') ||
+ \ !has_key(a:options['cursor'], 'align')
+ return
+ endif
+
+ let l:align = a:options['cursor']['align']
+
+ if s:use_vim_popup
+ " Vim popups
+ let l:pos = popup_getpos(s:winid)
+ let l:below = winline() < winheight(0) / 2
+ if l:below
+ let l:height = min([l:pos['core_height'], winheight(0) - winline() - 2])
+ else
+ let l:height = min([l:pos['core_height'], winline() - 3])
+ endif
+ let l:width = l:pos['core_width']
+
+ let l:options = {
+ \ 'minwidth': l:width,
+ \ 'maxwidth': l:width,
+ \ 'minheight': l:height,
+ \ 'maxheight': l:height,
+ \ 'pos': l:below ? 'topleft' : 'botleft',
+ \ 'line': l:below ? 'cursor+1' : 'cursor-1'
+ \ }
+
+ if l:align ==? 'top'
+ let l:options['firstline'] = a:options['cursor']['line']
+ elseif l:align ==? 'center'
+ let l:options['firstline'] = a:options['cursor']['line'] - (l:height - 1) / 2
+ elseif l:align ==? 'bottom'
+ let l:options['firstline'] = a:options['cursor']['line'] - l:height + 1
+ endif
+
+ call popup_setoptions(s:winid, l:options)
+ redraw!
+ else
+ " Preview and Neovim floats
+ if l:align ==? 'top'
+ normal! zt
+ elseif l:align ==? 'center'
+ normal! zz
+ elseif l:align ==? 'bottom'
+ normal! zb
+ endif
+ endif
+endfunction
+
+function! lsp#ui#vim#output#get_size_info(winid) abort
+ " Get size information while still having the buffer active
+ let l:buffer = winbufnr(a:winid)
+ let l:maxwidth = max(map(getbufline(l:buffer, 1, '$'), 'strdisplaywidth(v:val)'))
+ let l:bufferlines = 0
+ if g:lsp_preview_max_width > 0
+ let l:maxwidth = min([g:lsp_preview_max_width, l:maxwidth])
+
+ " Determine, for each line, how many "virtual" lines it spans, and add
+ " these together for all lines in the buffer
+ for l:line in getbufline(l:buffer, 1, '$')
+ let l:num_lines = str2nr(string(ceil(strdisplaywidth(l:line) * 1.0 / g:lsp_preview_max_width)))
+ let l:bufferlines += max([l:num_lines, 1])
+ endfor
+ else
+ if s:use_vim_popup
+ let l:bufferlines = line('$', a:winid)
+ elseif s:use_nvim_float
+ let l:bufferlines = nvim_buf_line_count(winbufnr(a:winid))
+ endif
+ endif
+
+ return [l:bufferlines, l:maxwidth]
+endfunction
+
+function! lsp#ui#vim#output#float_supported() abort
+ return s:use_vim_popup || s:use_nvim_float
+endfunction
+
+function! lsp#ui#vim#output#preview(server, data, options) abort
+ if s:is_cmdwin()
+ return
+ endif
+
+ if s:winid && type(s:preview_data) ==# type(a:data)
+ \ && s:preview_data ==# a:data
+ \ && type(g:lsp_preview_doubletap) ==# 3
+ \ && len(g:lsp_preview_doubletap) >= 1
+ \ && type(g:lsp_preview_doubletap[0]) ==# 2
+ \ && index(['i', 's'], mode()[0]) ==# -1
+ echo ''
+ return call(g:lsp_preview_doubletap[0], [])
+ endif
+ " Close any previously opened preview window
+ call lsp#ui#vim#output#closepreview()
+
+ let l:current_window_id = win_getid()
+
+ let s:winid = s:open_preview(a:data)
+
+ let s:preview_data = a:data
+ let l:lines = []
+ let l:syntax_lines = []
+ let l:ft = lsp#ui#vim#output#append(a:data, l:lines, l:syntax_lines)
+
+ if has_key(a:options, 'filetype')
+ let l:ft = a:options['filetype']
+ endif
+
+ let l:do_conceal = g:lsp_hover_conceal
+ let l:server_info = a:server !=# '' ? lsp#get_server_info(a:server) : {}
+ let l:config = get(l:server_info, 'config', {})
+ let l:do_conceal = get(l:config, 'hover_conceal', l:do_conceal)
+
+ call setbufvar(winbufnr(s:winid), 'lsp_syntax_highlights', l:syntax_lines)
+ call setbufvar(winbufnr(s:winid), 'lsp_do_conceal', l:do_conceal)
+ call lsp#ui#vim#output#setcontent(s:winid, l:lines, l:ft)
+
+ let [l:bufferlines, l:maxwidth] = lsp#ui#vim#output#get_size_info(s:winid)
+
+ if s:use_preview
+ " Set statusline
+ if has_key(a:options, 'statusline')
+ let &l:statusline = a:options['statusline']
+ endif
+
+ call s:set_cursor(l:current_window_id, a:options)
+ endif
+
+ " Go to the previous window to adjust positioning
+ call win_gotoid(l:current_window_id)
+
+ echo ''
+
+ if s:winid && (s:use_vim_popup || s:use_nvim_float)
+ if s:use_nvim_float
+ " Neovim floats
+ call lsp#ui#vim#output#adjust_float_placement(l:bufferlines, l:maxwidth)
+ call s:set_cursor(l:current_window_id, a:options)
+ call s:add_float_closing_hooks()
+ elseif s:use_vim_popup
+ " Vim popups
+ call s:set_cursor(l:current_window_id, a:options)
+ endif
+ doautocmd <nomodeline> User lsp_float_opened
+ endif
+
+ if l:ft ==? 'markdown'
+ call s:import_modules()
+ call s:Window.do(s:winid, {->s:Markdown.apply()})
+ endif
+
+ if !g:lsp_preview_keep_focus
+ " set the focus to the preview window
+ call win_gotoid(s:winid)
+ endif
+ return ''
+endfunction
+
+function! s:escape_string_for_display(str) abort
+ return substitute(substitute(a:str, '\r\n', '\n', 'g'), '\r', '\n', 'g')
+endfunction
+
+function! lsp#ui#vim#output#append(data, lines, syntax_lines) abort
+ if type(a:data) == type([])
+ for l:entry in a:data
+ call lsp#ui#vim#output#append(l:entry, a:lines, a:syntax_lines)
+ endfor
+
+ return 'markdown'
+ elseif type(a:data) ==# type('')
+ call extend(a:lines, split(s:escape_string_for_display(a:data), "\n", v:true))
+ return 'markdown'
+ elseif type(a:data) ==# type({}) && has_key(a:data, 'language')
+ let l:new_lines = split(s:escape_string_for_display(a:data.value), '\n')
+
+ let l:i = 1
+ while l:i <= len(l:new_lines)
+ call add(a:syntax_lines, { 'line': len(a:lines) + l:i, 'language': a:data.language })
+ let l:i += 1
+ endwhile
+
+ call extend(a:lines, l:new_lines)
+ return 'markdown'
+ elseif type(a:data) ==# type({}) && has_key(a:data, 'kind')
+ if a:data.kind ==? 'markdown'
+ call s:import_modules()
+ let l:detail = s:MarkupContent.normalize(a:data.value, {
+ \ 'compact': !g:lsp_preview_fixup_conceal
+ \ })
+ call extend(a:lines, s:Text.split_by_eol(l:detail))
+ else
+ call extend(a:lines, split(s:escape_string_for_display(a:data.value), '\n', v:true))
+ endif
+ return a:data.kind ==? 'plaintext' ? 'text' : a:data.kind
+ endif
+endfunction
+
+function! s:is_cmdwin() abort
+ return getcmdwintype() !=# ''
+endfunction
projects / etc / vim.git / blobdiff