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patch 9.1.1825: completion: flicker when LSP server is slow

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Problem:  completion: flicker when LSP server is slow
Solution: reinsert leader text before invoking user function
          (Girish Palya)

Reference:
https://github.com/girishji/vimcomplete/issues/101#issuecomment-3343063245

In insert-mode completion, the leader text is temporarily removed while
searching for candidates. When the LSP server responds slowly, the
client may call `:sleep` to wait, which triggers `out_flush()`. This
causes the deleted text to disappear briefly before being redrawn,
resulting in visible flicker.

This commit reinserts the leader text before invoking the user function,
and removes it again afterward to eliminate flicker.

closes: #18468

Signed-off-by: Girish Palya <girishji@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
Girish Palya
2025-10-04 10:55:40 +00:00
committed by Christian Brabandt
parent 420923c0c5
commit c51d1cc578
3 changed files with 27 additions and 17 deletions
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2
src/version.c
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@@ -729,6 +729,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
1825,
/**/
1824,
/**/