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Maintain backward compatibility in hunk preview code

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win_getid() was introduced in Vim 7.4.1557.  The code uses it to
remember the id of the preview window.  In newer Vims or Neovim this
could be a floating window but pre-7.4.1557 it can only be an ordinary
preview window.  And in that case we only need the preview window's
buffer number.

This commit uses the buffer number when win_getid() isn't available.

Fixes #683.
This commit is contained in:
Andy Stewart
2020-04-23 09:28:38 +01:00
parent 9e99a78271
commit 425c7cf2e2
1 changed files with 11 additions and 3 deletions
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12
autoload/gitgutter/hunk.vim
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@@ -1,4 +1,5 @@
let s:winid = 0
let s:preview_bufnr = 0
let s:nomodeline = (v:version > 703 || (v:version == 703 && has('patch442'))) ? '<nomodeline>' : ''
function! gitgutter#hunk#set_hunks(bufnr, hunks) abort
@@ -442,7 +443,11 @@ function! s:open_hunk_preview_window()
if !&previewwindow
noautocmd execute g:gitgutter_preview_win_location &previewheight 'new gitgutter://hunk-preview'
doautocmd WinEnter
if exists('*win_getid')
let s:winid = win_getid()
else
let s:preview_bufnr = bufnr('')
endif
set previewwindow
setlocal filetype=diff buftype=acwrite bufhidden=delete
" Reset some defaults in case someone else has changed them.
@@ -511,7 +516,8 @@ endfunction
function! s:enable_staging_from_hunk_preview_window()
augroup gitgutter_hunk_preview
autocmd!
execute 'autocmd BufWriteCmd <buffer='.winbufnr(s:winid).'> GitGutterStageHunk'
let bufnr = s:winid != 0 ? winbufnr(s:winid) : s:preview_bufnr
execute 'autocmd BufWriteCmd <buffer='.bufnr.'> GitGutterStageHunk'
augroup END
endfunction
@@ -523,7 +529,8 @@ endfunction
function! s:close_hunk_preview_window()
call setbufvar(winbufnr(s:winid), '&modified', 0)
let bufnr = s:winid != 0 ? winbufnr(s:winid) : s:preview_bufnr
call setbufvar(bufnr, '&modified', 0)
if g:gitgutter_preview_win_floating
if win_id2win(s:winid) > 0
@@ -534,4 +541,5 @@ function! s:close_hunk_preview_window()
endif
let s:winid = 0
let s:preview_bufnr = 0
endfunction