Merge pull request #151 from flw-cn/pr/rust-doc-tab

Add <Plug>(rust-doc-tab)

README.md

@@ -67,5 +67,6 @@ augroup Racer
     autocmd FileType rust nmap <buffer> gx         <Plug>(rust-def-vertical)
     autocmd FileType rust nmap <buffer> gt         <Plug>(rust-def-tab)
     autocmd FileType rust nmap <buffer> <leader>gd <Plug>(rust-doc)
+    autocmd FileType rust nmap <buffer> <leader>gD <Plug>(rust-doc-tab)
 augroup END
 ```

autoload/racer.vim

@@ -108,7 +108,7 @@ function! s:RacerSplitLine(line)
     return parts
 endfunction
 
-function! racer#ShowDocumentation()
+function! racer#ShowDocumentation(tab)
     let winview = winsaveview()  " Save the current cursor position
     " Move to the end of the word for the entire token to search.
     " Move one char back to avoid moving to the end of the *next* word.
@@ -143,7 +143,11 @@ function! racer#ShowDocumentation()
             " If the __doc__ buffer is open in the current tab, jump to it
             silent execute (wi+1) . 'wincmd w'
         else
-            pedit __doc__
+            if a:tab
+                tab pedit __doc__
+            else
+                pedit __doc__
+            endif
             wincmd P
         endif
 

ftplugin/rust_racer.vim

@@ -15,6 +15,8 @@ nnoremap <silent><buffer> <Plug>(rust-def-vertical)
 nnoremap <silent><buffer> <Plug>(rust-def-tab)
         \ :tab split<CR>:call racer#GoToDefinition()<CR>
 nnoremap <silent><buffer> <Plug>(rust-doc)
-        \ :call racer#ShowDocumentation()<CR>
+        \ :call racer#ShowDocumentation(0)<CR>
+nnoremap <silent><buffer> <Plug>(rust-doc-tab)
+        \ :call racer#ShowDocumentation(1)<CR>
 
 setlocal omnifunc=racer#RacerComplete