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feat(ui): add scroll_delta to win_viewport event #19270

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scroll_delta contains how much the top line of a window moved since the
last time win_viewport was emitted. It is expected to be used to
implement smooth scrolling. For this purpose it only counts "virtual" or
"displayed" so folds should count as one line. Because of this it
adds extra information that cannot be computed from the topline
parameter.

Fixes #19227
This commit is contained in:
Matthias Deiml
2023-03-12 23:58:46 +01:00
committed by GitHub
parent e5f4394eb7
commit fd2ece278b
10 changed files with 192 additions and 114 deletions
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2
src/nvim/api/ui_events.in.h
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@@ -114,7 +114,7 @@ void msg_set_pos(Integer grid, Integer row, Boolean scrolled, String sep_char)
FUNC_API_SINCE(6) FUNC_API_COMPOSITOR_IMPL FUNC_API_CLIENT_IGNORE;
void win_viewport(Integer grid, Window win, Integer topline, Integer botline, Integer curline,
Integer curcol, Integer line_count)
Integer curcol, Integer line_count, Integer scroll_delta)
FUNC_API_SINCE(7) FUNC_API_CLIENT_IGNORE;
void win_extmark(Integer grid, Window win, Integer ns_id, Integer mark_id, Integer row, Integer col)