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Fix display of overlay arrow immediately after invisible text

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* src/xdisp.c (overlay_arrow_at_row): Allow the overlay arrow's
marker position to be anywhere between the row's start and end
charpos.  This keeps the overlay arrow on display even when the
preceding text is invisible.  (Bug#54843)
This commit is contained in:
Eli Zaretskii 2025-03-30 10:29:57 +03:00
parent 651418895d
commit 209b7e7444
1 changed files with 10 additions and 1 deletions
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11
src/xdisp.c
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@ -16939,9 +16939,18 @@ overlay_arrow_at_row (struct it *it, struct glyph_row *row)
val = find_symbol_value (var);
ptrdiff_t arrow_marker_pos;
if (MARKERP (val)
&& current_buffer == XMARKER (val)->buffer
&& (MATRIX_ROW_START_CHARPOS (row) == marker_position (val)))
&& (arrow_marker_pos = marker_position (val),
/* Normally, the marker position will be at the row's
start charpos. But if the previous text lines are
invisible, the row's start charpos includes those
invisible lines, so we make a more general test that
the marker position is anywhere between the start and
the end character positions of this row. */
(MATRIX_ROW_START_CHARPOS (row) <= arrow_marker_pos
&& arrow_marker_pos < MATRIX_ROW_END_CHARPOS (row))))
{
if (FRAME_WINDOW_P (it->f)
/* FIXME: if ROW->reversed_p is set, this should test