/* Reset screen state. */
void
screen_write_reset(struct screen_write_ctx *ctx)
{
screen_reset_tabs(ctx->s);
screen_write_scrollregion(ctx, 0, screen_size_y(ctx->s) - 1);
screen_write_insertmode(ctx, 0);
screen_write_kcursormode(ctx, 0);
screen_write_kkeypadmode(ctx, 0);
screen_write_mousemode_off(ctx);
screen_write_clearscreen(ctx);
screen_write_cursormove(ctx, 0, 0);
}
/* Execute control sequence. */
int
input_csi_dispatch(struct input_ctx *ictx)
{
struct screen_write_ctx *sctx = &ictx->ctx;
struct window_pane *wp = ictx->wp;
struct screen *s = sctx->s;
struct input_table_entry *entry;
int n, m;
if (ictx->flags & INPUT_DISCARD)
return (0);
if (input_split(ictx) != 0)
return (0);
log_debug("%s: '%c' \"%s\" \"%s\"",
__func__, ictx->ch, ictx->interm_buf, ictx->param_buf);
entry = bsearch(ictx, input_csi_table, nitems(input_csi_table),
sizeof input_csi_table[0], input_table_compare);
if (entry == NULL) {
log_debug("%s: unknown '%c'", __func__, ictx->ch);
return (0);
}
switch (entry->type) {
case INPUT_CSI_CBT:
/* Find the previous tab point, n times. */
n = input_get(ictx, 0, 1, 1);
while (s->cx > 0 && n-- > 0) {
do
s->cx--;
while (s->cx > 0 && !bit_test(s->tabs, s->cx));
}
break;
case INPUT_CSI_CUB:
screen_write_cursorleft(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_CUD:
screen_write_cursordown(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_CUF:
screen_write_cursorright(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_CUP:
n = input_get(ictx, 0, 1, 1);
m = input_get(ictx, 1, 1, 1);
screen_write_cursormove(sctx, m - 1, n - 1);
break;
case INPUT_CSI_CUU:
screen_write_cursorup(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_CNL:
screen_write_carriagereturn(sctx);
screen_write_cursordown(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_CPL:
screen_write_carriagereturn(sctx);
screen_write_cursorup(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_DA:
switch (input_get(ictx, 0, 0, 0)) {
case 0:
input_reply(ictx, "\033[?1;2c");
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_DCH:
screen_write_deletecharacter(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_DECSTBM:
n = input_get(ictx, 0, 1, 1);
m = input_get(ictx, 1, 1, screen_size_y(s));
screen_write_scrollregion(sctx, n - 1, m - 1);
break;
case INPUT_CSI_DL:
screen_write_deleteline(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_DSR:
switch (input_get(ictx, 0, 0, 0)) {
case 5:
input_reply(ictx, "\033[0n");
break;
case 6:
input_reply(ictx, "\033[%u;%uR", s->cy + 1, s->cx + 1);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_ED:
switch (input_get(ictx, 0, 0, 0)) {
case 0:
screen_write_clearendofscreen(sctx);
break;
case 1:
screen_write_clearstartofscreen(sctx);
break;
case 2:
screen_write_clearscreen(sctx);
break;
case 3:
switch (input_get(ictx, 1, 0, 0)) {
case 0:
/*
* Linux console extension to clear history
* (for example before locking the screen).
*/
screen_write_clearhistory(sctx);
break;
}
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_EL:
switch (input_get(ictx, 0, 0, 0)) {
case 0:
screen_write_clearendofline(sctx);
break;
case 1:
screen_write_clearstartofline(sctx);
break;
case 2:
screen_write_clearline(sctx);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_HPA:
n = input_get(ictx, 0, 1, 1);
screen_write_cursormove(sctx, n - 1, s->cy);
break;
case INPUT_CSI_ICH:
screen_write_insertcharacter(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_IL:
screen_write_insertline(sctx, input_get(ictx, 0, 1, 1));
break;
case INPUT_CSI_RCP:
memcpy(&ictx->cell, &ictx->old_cell, sizeof ictx->cell);
screen_write_cursormove(sctx, ictx->old_cx, ictx->old_cy);
break;
case INPUT_CSI_RM:
switch (input_get(ictx, 0, 0, -1)) {
case 4: /* IRM */
screen_write_insertmode(&ictx->ctx, 0);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_RM_PRIVATE:
switch (input_get(ictx, 0, 0, -1)) {
case 1: /* GATM */
screen_write_kcursormode(&ictx->ctx, 0);
break;
case 3: /* DECCOLM */
screen_write_cursormove(&ictx->ctx, 0, 0);
screen_write_clearscreen(&ictx->ctx);
break;
case 25: /* TCEM */
screen_write_cursormode(&ictx->ctx, 0);
break;
case 1000:
case 1001:
case 1002:
case 1003:
screen_write_mousemode_off(&ictx->ctx);
break;
case 1005:
screen_write_utf8mousemode(&ictx->ctx, 0);
break;
case 1049:
window_pane_alternate_off(wp, &ictx->cell);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_SCP:
memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
ictx->old_cx = s->cx;
ictx->old_cy = s->cy;
break;
case INPUT_CSI_SGR:
input_csi_dispatch_sgr(ictx);
break;
case INPUT_CSI_SM:
switch (input_get(ictx, 0, 0, -1)) {
case 4: /* IRM */
screen_write_insertmode(&ictx->ctx, 1);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_SM_PRIVATE:
switch (input_get(ictx, 0, 0, -1)) {
case 1: /* GATM */
screen_write_kcursormode(&ictx->ctx, 1);
break;
case 3: /* DECCOLM */
screen_write_cursormove(&ictx->ctx, 0, 0);
screen_write_clearscreen(&ictx->ctx);
break;
case 25: /* TCEM */
screen_write_cursormode(&ictx->ctx, 1);
break;
case 1000:
screen_write_mousemode_on(
&ictx->ctx, MODE_MOUSE_STANDARD);
break;
case 1002:
screen_write_mousemode_on(
&ictx->ctx, MODE_MOUSE_BUTTON);
break;
case 1003:
screen_write_mousemode_on(&ictx->ctx, MODE_MOUSE_ANY);
break;
case 1005:
screen_write_utf8mousemode(&ictx->ctx, 1);
break;
case 1049:
window_pane_alternate_on(wp, &ictx->cell);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_TBC:
switch (input_get(ictx, 0, 0, 0)) {
case 0:
if (s->cx < screen_size_x(s))
bit_clear(s->tabs, s->cx);
break;
case 3:
bit_nclear(s->tabs, 0, screen_size_x(s) - 1);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
break;
}
break;
case INPUT_CSI_VPA:
n = input_get(ictx, 0, 1, 1);
screen_write_cursormove(sctx, s->cx, n - 1);
break;
case INPUT_CSI_DECSCUSR:
n = input_get(ictx, 0, 0, 0);
screen_set_cursor_style(s, n);
break;
}
return (0);
}
/* Execute escape sequence. */
int
input_esc_dispatch(struct input_ctx *ictx)
{
struct screen_write_ctx *sctx = &ictx->ctx;
struct screen *s = sctx->s;
struct input_table_entry *entry;
if (ictx->flags & INPUT_DISCARD)
return (0);
log_debug("%s: '%c', %s", __func__, ictx->ch, ictx->interm_buf);
entry = bsearch(ictx, input_esc_table, nitems(input_esc_table),
sizeof input_esc_table[0], input_table_compare);
if (entry == NULL) {
log_debug("%s: unknown '%c'", __func__, ictx->ch);
return (0);
}
switch (entry->type) {
case INPUT_ESC_RIS:
memcpy(&ictx->cell, &grid_default_cell, sizeof ictx->cell);
memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
ictx->old_cx = 0;
ictx->old_cy = 0;
screen_reset_tabs(sctx->s);
screen_write_scrollregion(sctx, 0, screen_size_y(sctx->s) - 1);
screen_write_insertmode(sctx, 0);
screen_write_kcursormode(sctx, 0);
screen_write_kkeypadmode(sctx, 0);
screen_write_mousemode_off(sctx);
screen_write_clearscreen(sctx);
screen_write_cursormove(sctx, 0, 0);
break;
case INPUT_ESC_IND:
screen_write_linefeed(sctx, 0);
break;
case INPUT_ESC_NEL:
screen_write_carriagereturn(sctx);
screen_write_linefeed(sctx, 0);
break;
case INPUT_ESC_HTS:
if (s->cx < screen_size_x(s))
bit_set(s->tabs, s->cx);
break;
case INPUT_ESC_RI:
screen_write_reverseindex(sctx);
break;
case INPUT_ESC_DECKPAM:
screen_write_kkeypadmode(sctx, 1);
break;
case INPUT_ESC_DECKPNM:
screen_write_kkeypadmode(sctx, 0);
break;
case INPUT_ESC_DECSC:
memcpy(&ictx->old_cell, &ictx->cell, sizeof ictx->old_cell);
ictx->old_cx = s->cx;
ictx->old_cy = s->cy;
break;
case INPUT_ESC_DECRC:
memcpy(&ictx->cell, &ictx->old_cell, sizeof ictx->cell);
screen_write_cursormove(sctx, ictx->old_cx, ictx->old_cy);
break;
case INPUT_ESC_DECALN:
screen_write_alignmenttest(sctx);
break;
case INPUT_ESC_SCSON_G0:
/*
* Not really supported, but fake it up enough for those that
* use it to switch character sets (by redefining G0 to
* graphics set, rather than switching to G1).
*/
ictx->cell.attr &= ~GRID_ATTR_CHARSET;
break;
case INPUT_ESC_SCSOFF_G0:
ictx->cell.attr |= GRID_ATTR_CHARSET;
break;
}
return (0);
}