Merge pull request #209 from sim590/version-aware-netrw-browsex-call

[etc/vim.git] / ftplugin / mkd.vim

diff --git a/ftplugin/mkd.vim b/ftplugin/mkd.vim
index 05316ab1c26c4113247cc2cbb0fc3a4b81700e17..9b9876779e6b6d62a05c34d550bfac6ccc51fd9c 100644 (file)
--- a/ftplugin/mkd.vim
+++ b/ftplugin/mkd.vim
@@ -464,14 +464,12 @@ endfunction
 " - a string with the the URL for the link under the cursor
 " - an empty string if the cursor is not on a link
 "
-" `b:` instead of `s:` to make it testable.
-"
 " TODO
 "
 " - multiline support
 " - give an error if the separator does is not on a link
 "
-function! b:Markdown_GetUrlForPosition(lnum, col)
+function! s:Markdown_GetUrlForPosition(lnum, col)
     let l:lnum = a:lnum
     let l:col = a:col
     let l:syn = synIDattr(synID(l:lnum, l:col, 1), 'name')
@@ -504,14 +502,29 @@ endfunction
 " Front end for GetUrlForPosition.
 "
 function! s:OpenUrlUnderCursor()
-    let l:url = b:Markdown_GetUrlForPosition(line('.'), col('.'))
+    let l:url = s:Markdown_GetUrlForPosition(line('.'), col('.'))
     if l:url != ''
-        call netrw#NetrwBrowseX(l:url, 0)
+        call s:VersionAwareNetrwBrowseX(l:url)
     else
         echomsg 'The cursor is not on a link.'
     endif
 endfunction
 
+function! s:VersionAwareNetrwBrowseX(url)
+    if has('patch-7.4.567')
+        call netrw#BrowseX(a:url, 0)
+    else
+        call netrw#NetrwBrowseX(a:url, 0)
+    endif
+endf
+
+function! s:MapNotHasmapto(lhs, rhs)
+    if !hasmapto('<Plug>' . a:rhs)
+        execute 'nmap <buffer>' . a:lhs . ' <Plug>' . a:rhs
+        execute 'vmap <buffer>' . a:lhs . ' <Plug>' . a:rhs
+    endif
+endfunction
+
 call <sid>MapNormVis('<Plug>Markdown_MoveToNextHeader', '<sid>MoveToNextHeader')
 call <sid>MapNormVis('<Plug>Markdown_MoveToPreviousHeader', '<sid>MoveToPreviousHeader')
 call <sid>MapNormVis('<Plug>Markdown_MoveToNextSiblingHeader', '<sid>MoveToNextSiblingHeader')
@@ -521,20 +534,13 @@ call <sid>MapNormVis('<Plug>Markdown_MoveToCurHeader', '<sid>MoveToCurHeader')
 nnoremap <Plug>Markdown_OpenUrlUnderCursor :call <sid>OpenUrlUnderCursor()<cr>
 
 if !get(g:, 'vim_markdown_no_default_key_mappings', 0)
-    nmap <buffer> ]] <Plug>Markdown_MoveToNextHeader
-    nmap <buffer> [[ <Plug>Markdown_MoveToPreviousHeader
-    nmap <buffer> ][ <Plug>Markdown_MoveToNextSiblingHeader
-    nmap <buffer> [] <Plug>Markdown_MoveToPreviousSiblingHeader
-    nmap <buffer> ]u <Plug>Markdown_MoveToParentHeader
-    nmap <buffer> ]c <Plug>Markdown_MoveToCurHeader
-    nmap <buffer> gx <Plug>Markdown_OpenUrlUnderCursor
-
-    vmap <buffer> ]] <Plug>Markdown_MoveToNextHeader
-    vmap <buffer> [[ <Plug>Markdown_MoveToPreviousHeader
-    vmap <buffer> ][ <Plug>Markdown_MoveToNextSiblingHeader
-    vmap <buffer> [] <Plug>Markdown_MoveToPreviousSiblingHeader
-    vmap <buffer> ]u <Plug>Markdown_MoveToParentHeader
-    vmap <buffer> ]c <Plug>Markdown_MoveToCurHeader
+    call <sid>MapNotHasmapto(']]', 'Markdown_MoveToNextHeader')
+    call <sid>MapNotHasmapto('[[', 'Markdown_MoveToPreviousHeader')
+    call <sid>MapNotHasmapto('][', 'Markdown_MoveToNextSiblingHeader')
+    call <sid>MapNotHasmapto('[]', 'Markdown_MoveToPreviousSiblingHeader')
+    call <sid>MapNotHasmapto(']u', 'Markdown_MoveToParentHeader')
+    call <sid>MapNotHasmapto(']c', 'Markdown_MoveToCurHeader')
+    call <sid>MapNotHasmapto('gx', 'Markdown_OpenUrlUnderCursor')
 endif
 
 command! -buffer -range=% HeaderDecrease call s:HeaderDecrease(<line1>, <line2>)