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term: ensure spinner is drawn on the bottom line

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That's the one line we track. If it gets drawn anywhere else, we can't
restore the overwritten contents.
This commit is contained in:
fang 2021-02-19 14:45:59 +01:00
parent 84fd574636
commit ea1b348754
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1 changed files with 7 additions and 1 deletions
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8
pkg/urbit/vere/io/term.c
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@ -1037,8 +1037,14 @@ _term_spin_step(u3_utty* uty_u)
// One-time cursor backoff.
//
if ( c3n == tat_u->sun_u.diz_o ) {
c3_w i_w;
// if we know where the bottom line is, and the cursor is not on it,
// move it to the bottom left
//
if ( tat_u->siz.row_l && tat_u->mir.rus_w > 0 ) {
_term_it_send_csi(uty_u, 'H', 2, tat_u->siz.row_l, 0);
}
c3_w i_w;
for ( i_w = bac_w; i_w < sol_w; i_w++ ) {
if ( lef_u.len != write(fid_i, lef_u.base, lef_u.len) ) {
return;