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Add support for CSI 18t command #4

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Merged
kdj0c merged 1 commit into from
Dec 16, 2025
Merged

Add support for CSI 18t command #4

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21 changes: 21 additions & 0 deletions src/tsm/tsm-vte.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1798,6 +1798,21 @@ static void csi_dsr(struct tsm_vte *vte)
}
}

static void csi_report_window_size(struct tsm_vte *vte)
{
char buf[64];
unsigned int w, h, len, resp;

resp = vte->csi_argv[0] == 18 ? 8 : 9;

w = tsm_screen_get_width(vte->con);
h = tsm_screen_get_height(vte->con);
len = snprintf(buf, sizeof(buf), "\e[%u;%u;%ut", resp, h + 1, w + 1);
if (len >= sizeof(buf))
return;
vte_write(vte, buf, len);
}

static void do_csi(struct tsm_vte *vte, uint32_t data)
{
int num, x, y, upper, lower;
Expand Down Expand Up @@ -2042,6 +2057,12 @@ static void do_csi(struct tsm_vte *vte, uint32_t data)
num = 1;
tsm_screen_scroll_down(vte->con, num);
break;
case 't': /* ST */
if (vte->csi_argv[0] == 18 || vte->csi_argv[0] == 19)
csi_report_window_size(vte);
else
llog_debug(vte, "unhandled CSI t sequence %c", data);
break;
default:
llog_debug(vte, "unhandled CSI sequence %c", data);
}
Expand Down
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