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vim-patch:9.1.0215: Half-page scrolling does not support smooth-scrolling

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Problem:  Page-wise scrolling with Ctrl-D/Ctrl-U implements
          it's own logic to change the topline and cursor.
          More logic than necessary for scrolling with Ctrl-F/Ctrl-B
          was removed in patch 9.1.0211.
Solution: Re-use the logic from Ctrl-E/Ctrl-Y/Ctrl-F/Ctrl-B while
          staying backward compatible as much as possible.
          Restore some of the logic that determined how many lines will
          be scrolled (Luuk van Baal)

5a2e3ec9ac
This commit is contained in:
Luuk van Baal
2024-03-28 10:20:45 +01:00
parent 4147302f4b
commit 2f638c0ac6
11 changed files with 159 additions and 178 deletions
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10
src/nvim/normal.c
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@@ -2258,7 +2258,7 @@ static void nv_page(cmdarg_T *cap)
goto_tabpage(cap->count0);
}
} else {
onepage(cap->arg, cap->count1);
pagescroll(cap->arg, cap->count1, false);
}
}
@@ -6394,12 +6394,8 @@ static void nv_at(cmdarg_T *cap)
/// Handle the CTRL-U and CTRL-D commands.
static void nv_halfpage(cmdarg_T *cap)
{
if ((cap->cmdchar == Ctrl_U && curwin->w_cursor.lnum == 1)
|| (cap->cmdchar == Ctrl_D
&& curwin->w_cursor.lnum == curbuf->b_ml.ml_line_count)) {
clearopbeep(cap->oap);
} else if (!checkclearop(cap->oap)) {
halfpage(cap->cmdchar == Ctrl_D, cap->count0);
if (!checkclearop(cap->oap)) {
pagescroll(cap->cmdchar == Ctrl_D, cap->count0, true);
}
}