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refactor LspHover (#1063)

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* use callbag for hover
This commit is contained in:
Prabir Shrestha
2021-02-22 04:35:01 -08:00
committed by GitHub
parent 6a2b97cd59
commit a78536ad74
3 changed files with 54 additions and 45 deletions
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52
autoload/lsp/internal/document_hover/under_cursor.vim Normal file
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@@ -0,0 +1,52 @@
" https://microsoft.github.io/language-server-protocol/specification#textDocument_hover
" options - {
" server - 'server_name' " optional
" }
function! lsp#internal#document_hover#under_cursor#do(options) abort
let l:bufnr = bufnr('%')
if has_key(a:options, 'server')
let l:servers = [a:options['server']]
else
let l:servers = filter(lsp#get_allowed_servers(), 'lsp#capabilities#has_hover_provider(v:val)')
endif
if len(l:servers) == 0
let l:filetype = getbufvar(l:bufnr, '&filetype')
call lsp#utils#error('textDocument/hover not supported for ' . l:filetype)
return
endif
redraw | echo 'Retrieving hover ...'
call lsp#_new_command()
" TODO: ask user to select server for formatting if there are multiple servers
let l:request = {
\ 'method': 'textDocument/hover',
\ 'params': {
\ 'textDocument': lsp#get_text_document_identifier(),
\ 'position': lsp#get_position(),
\ },
\ }
call lsp#callbag#pipe(
\ lsp#callbag#fromList(l:servers),
\ lsp#callbag#flatMap({server->
\ lsp#request(server, l:request)
\ }),
\ lsp#callbag#tap({x->s:show_hover(x['server_name'], x['request'], x['response'])}),
\ lsp#callbag#takeUntil(lsp#callbag#pipe(
\ lsp#stream(),
\ lsp#callbag#filter({x->has_key(x, 'command')}),
\ )),
\ lsp#callbag#subscribe(),
\ )
endfunction
function! s:show_hover(server_name, request, response) abort
if !has_key(a:response, 'result') || empty(a:response['result']) ||
\ empty(a:response['result']['contents'])
call lsp#utils#error('No hover information found in server - ' . a:server_name)
endif
call lsp#ui#vim#output#preview(a:server_name, a:response['result']['contents'], {'statusline': ' LSP Hover'})
endfunction

43
autoload/lsp/ui/vim/hover.vim
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@@ -1,43 +0,0 @@
function! s:not_supported(what) abort
return lsp#utils#error(a:what.' not supported for '.&filetype)
endfunction
function! lsp#ui#vim#hover#get_hover_under_cursor() abort
let l:servers = filter(lsp#get_allowed_servers(), 'lsp#capabilities#has_hover_provider(v:val)')
if len(l:servers) == 0
call s:not_supported('Retrieving hover')
return
endif
for l:server in l:servers
call lsp#send_request(l:server, {
\ 'method': 'textDocument/hover',
\ 'params': {
\ 'textDocument': lsp#get_text_document_identifier(),
\ 'position': lsp#get_position(),
\ },
\ 'on_notification': function('s:handle_hover', [l:server]),
\ })
endfor
echo 'Retrieving hover ...'
endfunction
function! s:handle_hover(server, data) abort
if lsp#client#is_error(a:data['response'])
call lsp#utils#error('Failed to retrieve hover information for ' . a:server)
return
endif
if !has_key(a:data['response'], 'result')
return
endif
if !empty(a:data['response']['result']) && !empty(a:data['response']['result']['contents'])
call lsp#ui#vim#output#preview(a:server, a:data['response']['result']['contents'], {'statusline': ' LSP Hover'})
return
else
call lsp#utils#error('No hover information found')
endif
endfunction

4
plugin/lsp.vim
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@@ -92,7 +92,7 @@ command! -nargs=? LspDocumentDiagnostics call lsp#internal#diagnostics#document_
\ extend({}, lsp#utils#args#_parse(<q-args>, {
\ 'buffers': {'type': type('')},
\ })))
command! -nargs=? -complete=customlist,lsp#utils#empty_complete LspHover call lsp#ui#vim#hover#get_hover_under_cursor()
command! -nargs=? -complete=customlist,lsp#utils#empty_complete LspHover call lsp#internal#document_hover#under_cursor#do({})
command! -nargs=* LspNextError call lsp#internal#diagnostics#movement#_next_error(<f-args>)
command! -nargs=* LspPreviousError call lsp#internal#diagnostics#movement#_previous_error(<f-args>)
command! -nargs=* LspNextWarning call lsp#internal#diagnostics#movement#_next_warning(<f-args>)
@@ -140,7 +140,7 @@ nnoremap <plug>(lsp-peek-definition) :<c-u>call lsp#ui#vim#definition(1)<cr>
nnoremap <plug>(lsp-document-symbol) :<c-u>call lsp#ui#vim#document_symbol()<cr>
nnoremap <plug>(lsp-document-symbol-search) :<c-u>call lsp#internal#document_symbol#search#do({})<cr>
nnoremap <plug>(lsp-document-diagnostics) :<c-u>call lsp#internal#diagnostics#document_diagnostics_command#do({})<cr>
nnoremap <plug>(lsp-hover) :<c-u>call lsp#ui#vim#hover#get_hover_under_cursor()<cr>
nnoremap <plug>(lsp-hover) :<c-u>call lsp#internal#document_hover#under_cursor#do({})<cr>
nnoremap <plug>(lsp-preview-close) :<c-u>call lsp#ui#vim#output#closepreview()<cr>
nnoremap <plug>(lsp-preview-focus) :<c-u>call lsp#ui#vim#output#focuspreview()<cr>
nnoremap <plug>(lsp-next-error) :<c-u>call lsp#internal#diagnostics#movement#_next_error()<cr>