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tty.c
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/* $OpenBSD$ */
/*
* Copyright (c) 2007 Nicholas Marriott <[email protected]>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <errno.h>
#include <fcntl.h>
#include <resolv.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include "tmux.h"
static int tty_log_fd = -1;
void tty_read_callback(struct bufferevent *, void *);
void tty_error_callback(struct bufferevent *, short, void *);
static int tty_same_fg(const struct grid_cell *, const struct grid_cell *);
static int tty_same_bg(const struct grid_cell *, const struct grid_cell *);
static int tty_same_colours(const struct grid_cell *, const struct grid_cell *);
static int tty_is_fg(const struct grid_cell *, int);
static int tty_is_bg(const struct grid_cell *, int);
void tty_set_italics(struct tty *);
int tty_try_256(struct tty *, u_char, const char *);
int tty_try_rgb(struct tty *, const struct grid_cell_rgb *, const char *);
void tty_colours(struct tty *, const struct grid_cell *);
void tty_check_fg(struct tty *, struct grid_cell *);
void tty_check_bg(struct tty *, struct grid_cell *);
void tty_colours_fg(struct tty *, const struct grid_cell *);
void tty_colours_bg(struct tty *, const struct grid_cell *);
int tty_large_region(struct tty *, const struct tty_ctx *);
int tty_fake_bce(const struct tty *, const struct window_pane *);
void tty_redraw_region(struct tty *, const struct tty_ctx *);
void tty_emulate_repeat(struct tty *, enum tty_code_code, enum tty_code_code,
u_int);
void tty_repeat_space(struct tty *, u_int);
void tty_cell(struct tty *, const struct grid_cell *,
const struct window_pane *);
void tty_default_colours(struct grid_cell *, const struct window_pane *);
#define tty_use_acs(tty) \
(tty_term_has((tty)->term, TTYC_ACSC) && !((tty)->flags & TTY_UTF8))
#define tty_pane_full_width(tty, ctx) \
((ctx)->xoff == 0 && screen_size_x((ctx)->wp->screen) >= (tty)->sx)
static int
tty_same_fg(const struct grid_cell *gc1, const struct grid_cell *gc2)
{
int flags1, flags2;
flags1 = (gc1->flags & (GRID_FLAG_FG256|GRID_FLAG_FGRGB));
flags2 = (gc2->flags & (GRID_FLAG_FG256|GRID_FLAG_FGRGB));
if (flags1 != flags2)
return (0);
if (flags1 & GRID_FLAG_FGRGB) {
if (gc1->fg_rgb.r != gc2->fg_rgb.r)
return (0);
if (gc1->fg_rgb.g != gc2->fg_rgb.g)
return (0);
if (gc1->fg_rgb.b != gc2->fg_rgb.b)
return (0);
return (1);
}
return (gc1->fg == gc2->fg);
}
static int
tty_same_bg(const struct grid_cell *gc1, const struct grid_cell *gc2)
{
int flags1, flags2;
flags1 = (gc1->flags & (GRID_FLAG_BG256|GRID_FLAG_BGRGB));
flags2 = (gc2->flags & (GRID_FLAG_BG256|GRID_FLAG_BGRGB));
if (flags1 != flags2)
return (0);
if (flags1 & GRID_FLAG_BGRGB) {
if (gc1->bg_rgb.r != gc2->bg_rgb.r)
return (0);
if (gc1->bg_rgb.g != gc2->bg_rgb.g)
return (0);
if (gc1->bg_rgb.b != gc2->bg_rgb.b)
return (0);
return (1);
}
return (gc1->bg == gc2->bg);
}
static int
tty_same_colours(const struct grid_cell *gc1, const struct grid_cell *gc2)
{
return (tty_same_fg(gc1, gc2) && tty_same_bg(gc1, gc2));
}
static int
tty_is_fg(const struct grid_cell *gc, int c)
{
if (gc->flags & (GRID_FLAG_FG256|GRID_FLAG_FGRGB))
return (0);
return (gc->fg == c);
}
static int
tty_is_bg(const struct grid_cell *gc, int c)
{
if (gc->flags & (GRID_FLAG_BG256|GRID_FLAG_BGRGB))
return (0);
return (gc->bg == c);
}
void
tty_create_log(void)
{
char name[64];
xsnprintf(name, sizeof name, "tmux-out-%ld.log", (long)getpid());
tty_log_fd = open(name, O_WRONLY|O_CREAT|O_TRUNC, 0644);
if (tty_log_fd != -1 && fcntl(tty_log_fd, F_SETFD, FD_CLOEXEC) == -1)
fatal("fcntl failed");
}
int
tty_init(struct tty *tty, struct client *c, int fd, char *term)
{
char *path;
if (!isatty(fd))
return (-1);
memset(tty, 0, sizeof *tty);
if (term == NULL || *term == '\0')
tty->termname = xstrdup("unknown");
else
tty->termname = xstrdup(term);
tty->fd = fd;
tty->client = c;
if ((path = ttyname(fd)) == NULL)
return (-1);
tty->path = xstrdup(path);
tty->cstyle = 0;
tty->ccolour = xstrdup("");
tty->flags = 0;
tty->term_flags = 0;
return (0);
}
int
tty_resize(struct tty *tty)
{
struct winsize ws;
u_int sx, sy;
if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
sx = ws.ws_col;
if (sx == 0)
sx = 80;
sy = ws.ws_row;
if (sy == 0)
sy = 24;
} else {
sx = 80;
sy = 24;
}
if (!tty_set_size(tty, sx, sy))
return (0);
tty->cx = UINT_MAX;
tty->cy = UINT_MAX;
tty->rupper = UINT_MAX;
tty->rlower = UINT_MAX;
/*
* If the terminal has been started, reset the actual scroll region and
* cursor position, as this may not have happened.
*/
if (tty->flags & TTY_STARTED) {
tty_cursor(tty, 0, 0);
tty_region(tty, 0, tty->sy - 1);
}
return (1);
}
int
tty_set_size(struct tty *tty, u_int sx, u_int sy) {
if (sx == tty->sx && sy == tty->sy)
return (0);
tty->sx = sx;
tty->sy = sy;
return (1);
}
int
tty_open(struct tty *tty, char **cause)
{
tty->term = tty_term_find(tty->termname, tty->fd, cause);
if (tty->term == NULL) {
tty_close(tty);
return (-1);
}
tty->flags |= TTY_OPENED;
tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_TIMER);
tty->event = bufferevent_new(tty->fd, tty_read_callback, NULL,
tty_error_callback, tty);
tty_start_tty(tty);
tty_keys_build(tty);
return (0);
}
void
tty_read_callback(__unused struct bufferevent *bufev, void *data)
{
struct tty *tty = data;
while (tty_keys_next(tty))
;
}
void
tty_error_callback(__unused struct bufferevent *bufev, __unused short what,
__unused void *data)
{
}
void
tty_init_termios(int fd, struct termios *orig_tio, struct bufferevent *bufev)
{
struct termios tio;
if (fd == -1 || tcgetattr(fd, orig_tio) != 0)
return;
setblocking(fd, 0);
if (bufev != NULL)
bufferevent_enable(bufev, EV_READ|EV_WRITE);
memcpy(&tio, orig_tio, sizeof tio);
tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
tio.c_iflag |= IGNBRK;
tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
ECHOPRT|ECHOKE|ISIG);
tio.c_cc[VMIN] = 1;
tio.c_cc[VTIME] = 0;
if (tcsetattr(fd, TCSANOW, &tio) == 0)
tcflush(fd, TCIOFLUSH);
}
void
tty_start_tty(struct tty *tty)
{
tty_init_termios(tty->fd, &tty->tio, tty->event);
tty_putcode(tty, TTYC_SMCUP);
tty_putcode(tty, TTYC_SGR0);
memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
tty_putcode(tty, TTYC_RMKX);
if (tty_use_acs(tty))
tty_putcode(tty, TTYC_ENACS);
tty_putcode(tty, TTYC_CLEAR);
tty_putcode(tty, TTYC_CNORM);
if (tty_term_has(tty->term, TTYC_KMOUS))
tty_puts(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
if (tty_term_flag(tty->term, TTYC_XT)) {
if (options_get_number(global_options, "focus-events")) {
tty->flags |= TTY_FOCUS;
tty_puts(tty, "\033[?1004h");
}
}
tty->cx = UINT_MAX;
tty->cy = UINT_MAX;
tty->rlower = UINT_MAX;
tty->rupper = UINT_MAX;
tty->mode = MODE_CURSOR;
tty->flags |= TTY_STARTED;
tty_force_cursor_colour(tty, "");
tty->mouse_drag_flag = 0;
tty->mouse_drag_update = NULL;
tty->mouse_drag_release = NULL;
}
void
tty_stop_tty(struct tty *tty)
{
struct winsize ws;
if (!(tty->flags & TTY_STARTED))
return;
tty->flags &= ~TTY_STARTED;
bufferevent_disable(tty->event, EV_READ|EV_WRITE);
/*
* Be flexible about error handling and try not kill the server just
* because the fd is invalid. Things like ssh -t can easily leave us
* with a dead tty.
*/
if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
return;
if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
return;
tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
if (tty_use_acs(tty))
tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
if (tty_term_has(tty->term, TTYC_SS) && tty->cstyle != 0) {
if (tty_term_has(tty->term, TTYC_SE))
tty_raw(tty, tty_term_string(tty->term, TTYC_SE));
else
tty_raw(tty, tty_term_string1(tty->term, TTYC_SS, 0));
}
if (tty->mode & MODE_BRACKETPASTE)
tty_raw(tty, "\033[?2004l");
tty_raw(tty, tty_term_string(tty->term, TTYC_CR));
tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
if (tty_term_has(tty->term, TTYC_KMOUS))
tty_raw(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
if (tty_term_flag(tty->term, TTYC_XT)) {
if (tty->flags & TTY_FOCUS) {
tty->flags &= ~TTY_FOCUS;
tty_raw(tty, "\033[?1004l");
}
}
tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
setblocking(tty->fd, 1);
}
void
tty_close(struct tty *tty)
{
if (event_initialized(&tty->key_timer))
evtimer_del(&tty->key_timer);
tty_stop_tty(tty);
if (tty->flags & TTY_OPENED) {
bufferevent_free(tty->event);
tty_term_free(tty->term);
tty_keys_free(tty);
tty->flags &= ~TTY_OPENED;
}
if (tty->fd != -1) {
close(tty->fd);
tty->fd = -1;
}
}
void
tty_free(struct tty *tty)
{
tty_close(tty);
free(tty->ccolour);
free(tty->path);
free(tty->termname);
}
void
tty_raw(struct tty *tty, const char *s)
{
ssize_t n, slen;
u_int i;
slen = strlen(s);
for (i = 0; i < 5; i++) {
n = write(tty->fd, s, slen);
if (n >= 0) {
s += n;
slen -= n;
if (slen == 0)
break;
} else if (n == -1 && errno != EAGAIN)
break;
usleep(100);
}
}
void
tty_putcode(struct tty *tty, enum tty_code_code code)
{
tty_puts(tty, tty_term_string(tty->term, code));
}
void
tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
{
if (a < 0)
return;
tty_puts(tty, tty_term_string1(tty->term, code, a));
}
void
tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
{
if (a < 0 || b < 0)
return;
tty_puts(tty, tty_term_string2(tty->term, code, a, b));
}
void
tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a)
{
if (a != NULL)
tty_puts(tty, tty_term_ptr1(tty->term, code, a));
}
void
tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a,
const void *b)
{
if (a != NULL && b != NULL)
tty_puts(tty, tty_term_ptr2(tty->term, code, a, b));
}
void
tty_puts(struct tty *tty, const char *s)
{
if (*s == '\0')
return;
bufferevent_write(tty->event, s, strlen(s));
if (tty_log_fd != -1)
write(tty_log_fd, s, strlen(s));
}
void
tty_putc(struct tty *tty, u_char ch)
{
const char *acs;
u_int sx;
if (tty->cell.attr & GRID_ATTR_CHARSET) {
acs = tty_acs_get(tty, ch);
if (acs != NULL)
bufferevent_write(tty->event, acs, strlen(acs));
else
bufferevent_write(tty->event, &ch, 1);
} else
bufferevent_write(tty->event, &ch, 1);
if (ch >= 0x20 && ch != 0x7f) {
sx = tty->sx;
if (tty->term->flags & TERM_EARLYWRAP)
sx--;
if (tty->cx >= sx) {
tty->cx = 1;
if (tty->cy != tty->rlower)
tty->cy++;
} else
tty->cx++;
}
if (tty_log_fd != -1)
write(tty_log_fd, &ch, 1);
}
void
tty_putn(struct tty *tty, const void *buf, size_t len, u_int width)
{
bufferevent_write(tty->event, buf, len);
if (tty_log_fd != -1)
write(tty_log_fd, buf, len);
tty->cx += width;
}
void
tty_set_italics(struct tty *tty)
{
const char *s;
if (tty_term_has(tty->term, TTYC_SITM)) {
s = options_get_string(global_options, "default-terminal");
if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) {
tty_putcode(tty, TTYC_SITM);
return;
}
}
tty_putcode(tty, TTYC_SMSO);
}
void
tty_set_title(struct tty *tty, const char *title)
{
if (!tty_term_has(tty->term, TTYC_TSL) ||
!tty_term_has(tty->term, TTYC_FSL))
return;
tty_putcode(tty, TTYC_TSL);
tty_puts(tty, title);
tty_putcode(tty, TTYC_FSL);
}
void
tty_force_cursor_colour(struct tty *tty, const char *ccolour)
{
if (*ccolour == '\0')
tty_putcode(tty, TTYC_CR);
else
tty_putcode_ptr1(tty, TTYC_CS, ccolour);
free(tty->ccolour);
tty->ccolour = xstrdup(ccolour);
}
void
tty_update_mode(struct tty *tty, int mode, struct screen *s)
{
int changed;
if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0)
tty_force_cursor_colour(tty, s->ccolour);
if (tty->flags & TTY_NOCURSOR)
mode &= ~MODE_CURSOR;
changed = mode ^ tty->mode;
if (changed & MODE_BLINKING) {
if (tty_term_has(tty->term, TTYC_CVVIS))
tty_putcode(tty, TTYC_CVVIS);
else
tty_putcode(tty, TTYC_CNORM);
changed |= MODE_CURSOR;
}
if (changed & MODE_CURSOR) {
if (mode & MODE_CURSOR)
tty_putcode(tty, TTYC_CNORM);
else
tty_putcode(tty, TTYC_CIVIS);
}
if (s != NULL && tty->cstyle != s->cstyle) {
if (tty_term_has(tty->term, TTYC_SS)) {
if (s->cstyle == 0 &&
tty_term_has(tty->term, TTYC_SE))
tty_putcode(tty, TTYC_SE);
else
tty_putcode1(tty, TTYC_SS, s->cstyle);
}
tty->cstyle = s->cstyle;
}
if (changed & ALL_MOUSE_MODES) {
if (mode & ALL_MOUSE_MODES) {
/*
* Enable the SGR (1006) extension unconditionally, as
* this is safe from misinterpretation. Do it in this
* order, because in some terminals it's the last one
* that takes effect and SGR is the preferred one.
*/
tty_puts(tty, "\033[?1006h");
if (mode & MODE_MOUSE_BUTTON)
tty_puts(tty, "\033[?1002h");
else if (mode & MODE_MOUSE_STANDARD)
tty_puts(tty, "\033[?1000h");
} else {
if (tty->mode & MODE_MOUSE_BUTTON)
tty_puts(tty, "\033[?1002l");
else if (tty->mode & MODE_MOUSE_STANDARD)
tty_puts(tty, "\033[?1000l");
tty_puts(tty, "\033[?1006l");
}
}
if (changed & MODE_KKEYPAD) {
if (mode & MODE_KKEYPAD)
tty_putcode(tty, TTYC_SMKX);
else
tty_putcode(tty, TTYC_RMKX);
}
if (changed & MODE_BRACKETPASTE) {
if (mode & MODE_BRACKETPASTE)
tty_puts(tty, "\033[?2004h");
else
tty_puts(tty, "\033[?2004l");
}
tty->mode = mode;
}
void
tty_emulate_repeat(struct tty *tty, enum tty_code_code code,
enum tty_code_code code1, u_int n)
{
if (tty_term_has(tty->term, code))
tty_putcode1(tty, code, n);
else {
while (n-- > 0)
tty_putcode(tty, code1);
}
}
void
tty_repeat_space(struct tty *tty, u_int n)
{
while (n-- > 0)
tty_putc(tty, ' ');
}
/*
* Is the region large enough to be worth redrawing once later rather than
* probably several times now? Currently yes if it is more than 50% of the
* pane.
*/
int
tty_large_region(__unused struct tty *tty, const struct tty_ctx *ctx)
{
struct window_pane *wp = ctx->wp;
return (ctx->orlower - ctx->orupper >= screen_size_y(wp->screen) / 2);
}
/*
* Return if BCE is needed but the terminal doesn't have it - it'll need to be
* emulated.
*/
int
tty_fake_bce(const struct tty *tty, const struct window_pane *wp)
{
struct grid_cell gc;
memcpy(&gc, &grid_default_cell, sizeof gc);
tty_default_colours(&gc, wp);
if (gc.bg == 8 && !(gc.flags & GRID_FLAG_BG256))
return (0);
return (!tty_term_flag(tty->term, TTYC_BCE));
}
/*
* Redraw scroll region using data from screen (already updated). Used when
* CSR not supported, or window is a pane that doesn't take up the full
* width of the terminal.
*/
void
tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
{
struct window_pane *wp = ctx->wp;
struct screen *s = wp->screen;
u_int i;
/*
* If region is large, schedule a window redraw. In most cases this is
* likely to be followed by some more scrolling.
*/
if (tty_large_region(tty, ctx)) {
wp->flags |= PANE_REDRAW;
return;
}
if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
for (i = ctx->ocy; i < screen_size_y(s); i++)
tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
} else {
for (i = ctx->orupper; i <= ctx->orlower; i++)
tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
}
}
void
tty_draw_pane(struct tty *tty, const struct window_pane *wp, u_int py, u_int ox,
u_int oy)
{
tty_draw_line(tty, wp, wp->screen, py, ox, oy);
}
void
tty_draw_line(struct tty *tty, const struct window_pane *wp,
struct screen *s, u_int py, u_int ox, u_int oy)
{
struct grid_cell gc;
struct grid_line *gl;
u_int i, sx;
int flags;
flags = tty->flags & TTY_NOCURSOR;
tty->flags |= TTY_NOCURSOR;
tty_update_mode(tty, tty->mode, s);
sx = screen_size_x(s);
if (sx > s->grid->linedata[s->grid->hsize + py].cellsize)
sx = s->grid->linedata[s->grid->hsize + py].cellsize;
if (sx > tty->sx)
sx = tty->sx;
/*
* Don't move the cursor to the start position if it will wrap there
* itself.
*/
gl = NULL;
if (py != 0)
gl = &s->grid->linedata[s->grid->hsize + py - 1];
if (oy + py == 0 || gl == NULL || !(gl->flags & GRID_LINE_WRAPPED) ||
tty->cx < tty->sx || ox != 0 ||
(oy + py != tty->cy + 1 && tty->cy != s->rlower + oy))
tty_cursor(tty, ox, oy + py);
for (i = 0; i < sx; i++) {
grid_view_get_cell(s->grid, i, py, &gc);
if (screen_check_selection(s, i, py)) {
gc.flags &= ~(GRID_FLAG_FG256|GRID_FLAG_BG256);
gc.flags |= s->sel.cell.flags &
(GRID_FLAG_FG256|GRID_FLAG_BG256);
}
tty_cell(tty, &gc, wp);
}
if (sx < tty->sx) {
tty_attributes(tty, &grid_default_cell, wp);
tty_cursor(tty, ox + sx, oy + py);
if (sx != screen_size_x(s) &&
ox + screen_size_x(s) >= tty->sx &&
tty_term_has(tty->term, TTYC_EL) &&
!tty_fake_bce(tty, wp))
tty_putcode(tty, TTYC_EL);
else
tty_repeat_space(tty, screen_size_x(s) - sx);
}
tty->flags = (tty->flags & ~TTY_NOCURSOR) | flags;
tty_update_mode(tty, tty->mode, s);
}
int
tty_client_ready(struct client *c, struct window_pane *wp)
{
if (c->session == NULL || c->tty.term == NULL)
return (0);
if (c->flags & CLIENT_SUSPENDED)
return (0);
if (c->tty.flags & TTY_FREEZE)
return (0);
if (c->session->curw->window != wp->window)
return (0);
return (1);
}
void
tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *),
struct tty_ctx *ctx)
{
struct window_pane *wp = ctx->wp;
struct client *c;
/* wp can be NULL if updating the screen but not the terminal. */
if (wp == NULL)
return;
if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
return;
if (!window_pane_visible(wp) || wp->flags & PANE_DROP)
return;
TAILQ_FOREACH(c, &clients, entry) {
if (!tty_client_ready(c, wp))
continue;
ctx->xoff = wp->xoff;
ctx->yoff = wp->yoff;
if (status_at_line(c) == 0)
ctx->yoff++;
cmdfn(&c->tty, ctx);
}
}
void
tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
{
struct window_pane *wp = ctx->wp;
if (!tty_pane_full_width(tty, ctx)) {
tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
return;
}
tty_attributes(tty, &grid_default_cell, wp);
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
if (!tty_fake_bce(tty, wp) && (tty_term_has(tty->term, TTYC_ICH) ||
tty_term_has(tty->term, TTYC_ICH1)))
tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
else
tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
}
void
tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
{
struct window_pane *wp = ctx->wp;
if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, wp) ||
(!tty_term_has(tty->term, TTYC_DCH) &&
!tty_term_has(tty->term, TTYC_DCH1))) {
tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
return;
}
tty_attributes(tty, &grid_default_cell, wp);
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
if (tty_term_has(tty->term, TTYC_DCH) ||
tty_term_has(tty->term, TTYC_DCH1))
tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
}
void
tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx)
{
u_int i;
tty_attributes(tty, &grid_default_cell, ctx->wp);
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
if (tty_term_has(tty->term, TTYC_ECH) && !tty_fake_bce(tty, ctx->wp))
tty_putcode1(tty, TTYC_ECH, ctx->num);
else {
for (i = 0; i < ctx->num; i++)
tty_putc(tty, ' ');
}
}
void
tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
{
if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, ctx->wp) ||
!tty_term_has(tty->term, TTYC_CSR) ||
!tty_term_has(tty->term, TTYC_IL1)) {
tty_redraw_region(tty, ctx);
return;
}
tty_attributes(tty, &grid_default_cell, ctx->wp);
tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
}
void
tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
{
if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, ctx->wp) ||
!tty_term_has(tty->term, TTYC_CSR) ||
!tty_term_has(tty->term, TTYC_DL1)) {
tty_redraw_region(tty, ctx);
return;
}
tty_attributes(tty, &grid_default_cell, ctx->wp);
tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
}
void
tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
{
struct window_pane *wp = ctx->wp;
struct screen *s = wp->screen;
tty_attributes(tty, &grid_default_cell, wp);
tty_cursor_pane(tty, ctx, 0, ctx->ocy);
if (tty_pane_full_width(tty, ctx) && !tty_fake_bce(tty, wp) &&
tty_term_has(tty->term, TTYC_EL))
tty_putcode(tty, TTYC_EL);
else
tty_repeat_space(tty, screen_size_x(s));
}
void
tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
{
struct window_pane *wp = ctx->wp;
struct screen *s = wp->screen;
tty_attributes(tty, &grid_default_cell, wp);
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
if (tty_pane_full_width(tty, ctx) &&
tty_term_has(tty->term, TTYC_EL) && !tty_fake_bce(tty, wp))
tty_putcode(tty, TTYC_EL);
else
tty_repeat_space(tty, screen_size_x(s) - ctx->ocx);
}
void
tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
{
tty_attributes(tty, &grid_default_cell, ctx->wp);
if (ctx->xoff == 0 && tty_term_has(tty->term, TTYC_EL1) &&
!tty_fake_bce(tty, ctx->wp)) {
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
tty_putcode(tty, TTYC_EL1);
} else {
tty_cursor_pane(tty, ctx, 0, ctx->ocy);
tty_repeat_space(tty, ctx->ocx + 1);
}
}
void
tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
{
if (ctx->ocy != ctx->orupper)
return;
if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, ctx->wp) ||
!tty_term_has(tty->term, TTYC_CSR) ||
!tty_term_has(tty->term, TTYC_RI)) {
tty_redraw_region(tty, ctx);
return;
}
tty_attributes(tty, &grid_default_cell, ctx->wp);
tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
tty_putcode(tty, TTYC_RI);
}
void
tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
{
struct window_pane *wp = ctx->wp;
if (ctx->ocy != ctx->orlower)
return;
if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, wp) ||
!tty_term_has(tty->term, TTYC_CSR)) {
if (tty_large_region(tty, ctx))
wp->flags |= PANE_REDRAW;
else
tty_redraw_region(tty, ctx);