tmux  3.2a
About: tmux is a terminal multiplexer that lets you switch easily between several programs in one terminal.
  Fossies Dox: tmux-3.2a.tar.gz  ("unofficial" and yet experimental doxygen-generated source code documentation)  

tty.c
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1 /* $OpenBSD$ */
2 
3 /*
4  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #include <sys/types.h>
20 #include <sys/ioctl.h>
21 
22 #include <netinet/in.h>
23 
24 #include <curses.h>
25 #include <errno.h>
26 #include <fcntl.h>
27 #include <resolv.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #include <termios.h>
31 #include <unistd.h>
32 
33 #include "tmux.h"
34 
35 static int tty_log_fd = -1;
36 
37 static int tty_client_ready(struct client *);
38 
39 static void tty_set_italics(struct tty *);
40 static int tty_try_colour(struct tty *, int, const char *);
41 static void tty_force_cursor_colour(struct tty *, const char *);
42 static void tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int,
43  u_int);
44 static void tty_cursor_pane_unless_wrap(struct tty *,
45  const struct tty_ctx *, u_int, u_int);
46 static void tty_invalidate(struct tty *);
47 static void tty_colours(struct tty *, const struct grid_cell *);
48 static void tty_check_fg(struct tty *, int *, struct grid_cell *);
49 static void tty_check_bg(struct tty *, int *, struct grid_cell *);
50 static void tty_check_us(struct tty *, int *, struct grid_cell *);
51 static void tty_colours_fg(struct tty *, const struct grid_cell *);
52 static void tty_colours_bg(struct tty *, const struct grid_cell *);
53 static void tty_colours_us(struct tty *, const struct grid_cell *);
54 
55 static void tty_region_pane(struct tty *, const struct tty_ctx *, u_int,
56  u_int);
57 static void tty_region(struct tty *, u_int, u_int);
58 static void tty_margin_pane(struct tty *, const struct tty_ctx *);
59 static void tty_margin(struct tty *, u_int, u_int);
60 static int tty_large_region(struct tty *, const struct tty_ctx *);
61 static int tty_fake_bce(const struct tty *, const struct grid_cell *,
62  u_int);
63 static void tty_redraw_region(struct tty *, const struct tty_ctx *);
64 static void tty_emulate_repeat(struct tty *, enum tty_code_code,
65  enum tty_code_code, u_int);
66 static void tty_repeat_space(struct tty *, u_int);
67 static void tty_draw_pane(struct tty *, const struct tty_ctx *, u_int);
68 static void tty_default_attributes(struct tty *, const struct grid_cell *,
69  int *, u_int);
70 
71 #define tty_use_margin(tty) \
72  (tty->term->flags & TERM_DECSLRM)
73 #define tty_full_width(tty, ctx) \
74  ((ctx)->xoff == 0 && (ctx)->sx >= (tty)->sx)
75 
76 #define TTY_BLOCK_INTERVAL (100000 /* 100 milliseconds */)
77 #define TTY_BLOCK_START(tty) (1 + ((tty)->sx * (tty)->sy) * 8)
78 #define TTY_BLOCK_STOP(tty) (1 + ((tty)->sx * (tty)->sy) / 8)
79 
80 void
82 {
83  char name[64];
84 
85  xsnprintf(name, sizeof name, "tmux-out-%ld.log", (long)getpid());
86 
87  tty_log_fd = open(name, O_WRONLY|O_CREAT|O_TRUNC, 0644);
88  if (tty_log_fd != -1 && fcntl(tty_log_fd, F_SETFD, FD_CLOEXEC) == -1)
89  fatal("fcntl failed");
90 }
91 
92 int
93 tty_init(struct tty *tty, struct client *c)
94 {
95  if (!isatty(c->fd))
96  return (-1);
97 
98  memset(tty, 0, sizeof *tty);
99  tty->client = c;
100 
101  tty->cstyle = 0;
102  tty->ccolour = xstrdup("");
103 
104  if (tcgetattr(c->fd, &tty->tio) != 0)
105  return (-1);
106  return (0);
107 }
108 
109 void
111 {
112  struct client *c = tty->client;
113  struct winsize ws;
114  u_int sx, sy, xpixel, ypixel;
115 
116  if (ioctl(c->fd, TIOCGWINSZ, &ws) != -1) {
117  sx = ws.ws_col;
118  if (sx == 0) {
119  sx = 80;
120  xpixel = 0;
121  } else
122  xpixel = ws.ws_xpixel / sx;
123  sy = ws.ws_row;
124  if (sy == 0) {
125  sy = 24;
126  ypixel = 0;
127  } else
128  ypixel = ws.ws_ypixel / sy;
129  } else {
130  sx = 80;
131  sy = 24;
132  xpixel = 0;
133  ypixel = 0;
134  }
135  log_debug("%s: %s now %ux%u (%ux%u)", __func__, c->name, sx, sy,
136  xpixel, ypixel);
137  tty_set_size(tty, sx, sy, xpixel, ypixel);
139 }
140 
141 void
142 tty_set_size(struct tty *tty, u_int sx, u_int sy, u_int xpixel, u_int ypixel)
143 {
144  tty->sx = sx;
145  tty->sy = sy;
146  tty->xpixel = xpixel;
147  tty->ypixel = ypixel;
148 }
149 
150 static void
151 tty_read_callback(__unused int fd, __unused short events, void *data)
152 {
153  struct tty *tty = data;
154  struct client *c = tty->client;
155  const char *name = c->name;
156  size_t size = EVBUFFER_LENGTH(tty->in);
157  int nread;
158 
159  nread = evbuffer_read(tty->in, c->fd, -1);
160  if (nread == 0 || nread == -1) {
161  if (nread == 0)
162  log_debug("%s: read closed", name);
163  else
164  log_debug("%s: read error: %s", name, strerror(errno));
165  event_del(&tty->event_in);
167  return;
168  }
169  log_debug("%s: read %d bytes (already %zu)", name, nread, size);
170 
171  while (tty_keys_next(tty))
172  ;
173 }
174 
175 static void
176 tty_timer_callback(__unused int fd, __unused short events, void *data)
177 {
178  struct tty *tty = data;
179  struct client *c = tty->client;
180  struct timeval tv = { .tv_usec = TTY_BLOCK_INTERVAL };
181 
182  log_debug("%s: %zu discarded", c->name, tty->discarded);
183 
185  c->discarded += tty->discarded;
186 
187  if (tty->discarded < TTY_BLOCK_STOP(tty)) {
188  tty->flags &= ~~TTY_BLOCK;
190  return;
191  }
192  tty->discarded = 0;
193  evtimer_add(&tty->timer, &tv);
194 }
195 
196 static int
198 {
199  struct client *c = tty->client;
200  size_t size = EVBUFFER_LENGTH(tty->out);
201  struct timeval tv = { .tv_usec = TTY_BLOCK_INTERVAL };
202 
203  if (size < TTY_BLOCK_START(tty))
204  return (0);
205 
206  if (tty->flags & TTY_BLOCK)
207  return (1);
208  tty->flags |= TTY_BLOCK;
209 
210  log_debug("%s: can't keep up, %zu discarded", c->name, size);
211 
212  evbuffer_drain(tty->out, size);
213  c->discarded += size;
214 
215  tty->discarded = 0;
216  evtimer_add(&tty->timer, &tv);
217  return (1);
218 }
219 
220 static void
221 tty_write_callback(__unused int fd, __unused short events, void *data)
222 {
223  struct tty *tty = data;
224  struct client *c = tty->client;
225  size_t size = EVBUFFER_LENGTH(tty->out);
226  int nwrite;
227 
228  nwrite = evbuffer_write(tty->out, c->fd);
229  if (nwrite == -1)
230  return;
231  log_debug("%s: wrote %d bytes (of %zu)", c->name, nwrite, size);
232 
233  if (c->redraw > 0) {
234  if ((size_t)nwrite >= c->redraw)
235  c->redraw = 0;
236  else
237  c->redraw -= nwrite;
238  log_debug("%s: waiting for redraw, %zu bytes left", c->name,
239  c->redraw);
240  } else if (tty_block_maybe(tty))
241  return;
242 
243  if (EVBUFFER_LENGTH(tty->out) != 0)
244  event_add(&tty->event_out, NULL);
245 }
246 
247 int
248 tty_open(struct tty *tty, char **cause)
249 {
250  struct client *c = tty->client;
251 
253  c->term_ncaps, &c->term_features, cause);
254  if (tty->term == NULL) {
255  tty_close(tty);
256  return (-1);
257  }
258  tty->flags |= TTY_OPENED;
259 
261 
262  event_set(&tty->event_in, c->fd, EV_PERSIST|EV_READ,
264  tty->in = evbuffer_new();
265  if (tty->in == NULL)
266  fatal("out of memory");
267 
268  event_set(&tty->event_out, c->fd, EV_WRITE, tty_write_callback, tty);
269  tty->out = evbuffer_new();
270  if (tty->out == NULL)
271  fatal("out of memory");
272 
273  evtimer_set(&tty->timer, tty_timer_callback, tty);
274 
276 
278 
279  return (0);
280 }
281 
282 static void
283 tty_start_timer_callback(__unused int fd, __unused short events, void *data)
284 {
285  struct tty *tty = data;
286  struct client *c = tty->client;
287 
288  log_debug("%s: start timer fired", c->name);
289  if ((tty->flags & (TTY_HAVEDA|TTY_HAVEXDA)) == 0)
292 }
293 
294 void
296 {
297  struct client *c = tty->client;
298  struct termios tio;
299  struct timeval tv = { .tv_sec = 1 };
300 
301  setblocking(c->fd, 0);
302  event_add(&tty->event_in, NULL);
303 
304  memcpy(&tio, &tty->tio, sizeof tio);
305  tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
306  tio.c_iflag |= IGNBRK;
307  tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
308  tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|ECHOPRT|
309  ECHOKE|ISIG);
310  tio.c_cc[VMIN] = 1;
311  tio.c_cc[VTIME] = 0;
312  if (tcsetattr(c->fd, TCSANOW, &tio) == 0)
313  tcflush(c->fd, TCIOFLUSH);
314 
316 
319 
320  if (tty_acs_needed(tty)) {
321  log_debug("%s: using capabilities for ACS", c->name);
323  } else
324  log_debug("%s: using UTF-8 for ACS", c->name);
325 
327  if (tty_term_has(tty->term, TTYC_KMOUS)) {
328  tty_puts(tty, "\033[?1000l\033[?1002l\033[?1003l");
329  tty_puts(tty, "\033[?1006l\033[?1005l");
330  }
331 
332  evtimer_set(&tty->start_timer, tty_start_timer_callback, tty);
333  evtimer_add(&tty->start_timer, &tv);
334 
335  tty->flags |= TTY_STARTED;
337 
338  if (*tty->ccolour != '\0')
340 
341  tty->mouse_drag_flag = 0;
342  tty->mouse_drag_update = NULL;
343  tty->mouse_drag_release = NULL;
344 }
345 
346 void
348 {
349  if (~tty->flags & TTY_STARTED)
350  return;
351 
352  if (tty->term->flags & TERM_VT100LIKE) {
353  if (~tty->flags & TTY_HAVEDA)
354  tty_puts(tty, "\033[>c");
355  if (~tty->flags & TTY_HAVEXDA)
356  tty_puts(tty, "\033[>q");
357  } else
359 }
360 
361 void
363 {
364  struct client *c = tty->client;
365  struct winsize ws;
366 
367  if (!(tty->flags & TTY_STARTED))
368  return;
369  tty->flags &= ~~TTY_STARTED;
370 
371  evtimer_del(&tty->start_timer);
372 
373  event_del(&tty->timer);
374  tty->flags &= ~~TTY_BLOCK;
375 
376  event_del(&tty->event_in);
377  event_del(&tty->event_out);
378 
379  /*
380  * Be flexible about error handling and try not kill the server just
381  * because the fd is invalid. Things like ssh -t can easily leave us
382  * with a dead tty.
383  */
384  if (ioctl(c->fd, TIOCGWINSZ, &ws) == -1)
385  return;
386  if (tcsetattr(c->fd, TCSANOW, &tty->tio) == -1)
387  return;
388 
389  tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
390  if (tty_acs_needed(tty))
395  if (tty_term_has(tty->term, TTYC_SS) && tty->cstyle != 0) {
396  if (tty_term_has(tty->term, TTYC_SE))
398  else
400  }
401  if (tty->mode & MODE_BRACKETPASTE)
403  if (*tty->ccolour != '\0')
405 
407  if (tty_term_has(tty->term, TTYC_KMOUS)) {
408  tty_raw(tty, "\033[?1000l\033[?1002l\033[?1003l");
409  tty_raw(tty, "\033[?1006l\033[?1005l");
410  }
411 
412  if (tty->term->flags & TERM_VT100LIKE)
413  tty_raw(tty, "\033[?7727l");
416 
417  if (tty_use_margin(tty))
420 
421  setblocking(c->fd, 1);
422 }
423 
424 void
425 tty_close(struct tty *tty)
426 {
427  if (event_initialized(&tty->key_timer))
428  evtimer_del(&tty->key_timer);
429  tty_stop_tty(tty);
430 
431  if (tty->flags & TTY_OPENED) {
432  evbuffer_free(tty->in);
433  event_del(&tty->event_in);
434  evbuffer_free(tty->out);
435  event_del(&tty->event_out);
436 
439 
440  tty->flags &= ~~TTY_OPENED;
441  }
442 }
443 
444 void
445 tty_free(struct tty *tty)
446 {
447  tty_close(tty);
448  free(tty->ccolour);
449 }
450 
451 void
453 {
454  struct client *c = tty->client;
455 
458 
459  if (tty_use_margin(tty))
461  if (options_get_number(global_options, "extended-keys"))
463  if (options_get_number(global_options, "focus-events"))
465  if (tty->term->flags & TERM_VT100LIKE)
466  tty_puts(tty, "\033[?7727h");
467 }
468 
469 void
470 tty_raw(struct tty *tty, const char *s)
471 {
472  struct client *c = tty->client;
473  ssize_t n, slen;
474  u_int i;
475 
476  slen = strlen(s);
477  for (i = 0; i < 5; i++) {
478  n = write(c->fd, s, slen);
479  if (n >= 0) {
480  s += n;
481  slen -= n;
482  if (slen == 0)
483  break;
484  } else if (n == -1 && errno != EAGAIN)
485  break;
486  usleep(100);
487  }
488 }
489 
490 void
491 tty_putcode(struct tty *tty, enum tty_code_code code)
492 {
493  tty_puts(tty, tty_term_string(tty->term, code));
494 }
495 
496 void
497 tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
498 {
499  if (a < 0)
500  return;
501  tty_puts(tty, tty_term_string1(tty->term, code, a));
502 }
503 
504 void
505 tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
506 {
507  if (a < 0 || b < 0)
508  return;
509  tty_puts(tty, tty_term_string2(tty->term, code, a, b));
510 }
511 
512 void
513 tty_putcode3(struct tty *tty, enum tty_code_code code, int a, int b, int c)
514 {
515  if (a < 0 || b < 0 || c < 0)
516  return;
517  tty_puts(tty, tty_term_string3(tty->term, code, a, b, c));
518 }
519 
520 void
521 tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a)
522 {
523  if (a != NULL)
524  tty_puts(tty, tty_term_ptr1(tty->term, code, a));
525 }
526 
527 void
528 tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a,
529  const void *b)
530 {
531  if (a != NULL && b != NULL)
532  tty_puts(tty, tty_term_ptr2(tty->term, code, a, b));
533 }
534 
535 static void
536 tty_add(struct tty *tty, const char *buf, size_t len)
537 {
538  struct client *c = tty->client;
539 
540  if (tty->flags & TTY_BLOCK) {
541  tty->discarded += len;
542  return;
543  }
544 
545  evbuffer_add(tty->out, buf, len);
546  log_debug("%s: %.*s", c->name, (int)len, buf);
547  c->written += len;
548 
549  if (tty_log_fd != -1)
550  write(tty_log_fd, buf, len);
551  if (tty->flags & TTY_STARTED)
552  event_add(&tty->event_out, NULL);
553 }
554 
555 void
556 tty_puts(struct tty *tty, const char *s)
557 {
558  if (*s != '\0')
559  tty_add(tty, s, strlen(s));
560 }
561 
562 void
563 tty_putc(struct tty *tty, u_char ch)
564 {
565  const char *acs;
566 
567  if ((tty->term->flags & TERM_NOAM) &&
568  ch >= 0x20 && ch != 0x7f &&
569  tty->cy == tty->sy - 1 &&
570  tty->cx + 1 >= tty->sx)
571  return;
572 
573  if (tty->cell.attr & GRID_ATTR_CHARSET) {
574  acs = tty_acs_get(tty, ch);
575  if (acs != NULL)
576  tty_add(tty, acs, strlen(acs));
577  else
578  tty_add(tty, &ch, 1);
579  } else
580  tty_add(tty, &ch, 1);
581 
582  if (ch >= 0x20 && ch != 0x7f) {
583  if (tty->cx >= tty->sx) {
584  tty->cx = 1;
585  if (tty->cy != tty->rlower)
586  tty->cy++;
587 
588  /*
589  * On !am terminals, force the cursor position to where
590  * we think it should be after a line wrap - this means
591  * it works on sensible terminals as well.
592  */
593  if (tty->term->flags & TERM_NOAM)
595  } else
596  tty->cx++;
597  }
598 }
599 
600 void
601 tty_putn(struct tty *tty, const void *buf, size_t len, u_int width)
602 {
603  if ((tty->term->flags & TERM_NOAM) &&
604  tty->cy == tty->sy - 1 &&
605  tty->cx + len >= tty->sx)
606  len = tty->sx - tty->cx - 1;
607 
608  tty_add(tty, buf, len);
609  if (tty->cx + width > tty->sx) {
610  tty->cx = (tty->cx + width) - tty->sx;
611  if (tty->cx <= tty->sx)
612  tty->cy++;
613  else
614  tty->cx = tty->cy = UINT_MAX;
615  } else
616  tty->cx += width;
617 }
618 
619 static void
621 {
622  const char *s;
623 
624  if (tty_term_has(tty->term, TTYC_SITM)) {
625  s = options_get_string(global_options, "default-terminal");
626  if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) {
628  return;
629  }
630  }
632 }
633 
634 void
635 tty_set_title(struct tty *tty, const char *title)
636 {
637  if (!tty_term_has(tty->term, TTYC_TSL) ||
639  return;
640 
642  tty_puts(tty, title);
644 }
645 
646 static void
647 tty_force_cursor_colour(struct tty *tty, const char *ccolour)
648 {
649  if (*ccolour == '\0')
651  else
652  tty_putcode_ptr1(tty, TTYC_CS, ccolour);
653  free(tty->ccolour);
654  tty->ccolour = xstrdup(ccolour);
655 }
656 
657 void
658 tty_update_mode(struct tty *tty, int mode, struct screen *s)
659 {
660  struct client *c = tty->client;
661  int changed;
662 
663  if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0)
665 
666  if (tty->flags & TTY_NOCURSOR)
667  mode &= ~~MODE_CURSOR;
668 
669  changed = mode ^ tty->mode;
670  if (changed != 0)
671  log_debug("%s: update mode %x to %x", c->name, tty->mode, mode);
672 
673  /*
674  * The cursor blinking flag can be reset by setting the cursor style, so
675  * set the style first.
676  */
677  if (s != NULL && tty->cstyle != s->cstyle) {
678  if (tty_term_has(tty->term, TTYC_SS)) {
679  if (s->cstyle == 0 && tty_term_has(tty->term, TTYC_SE))
681  else
683  }
684  tty->cstyle = s->cstyle;
685  changed |= (MODE_CURSOR|MODE_BLINKING);
686  }
687 
688  /*
689  * Cursor invisible (RM ?25) overrides cursor blinking (SM ?12 or RM
690  * 34), and we need to be careful not send cnorm after cvvis since it
691  * can undo it.
692  */
693  if (changed & (MODE_CURSOR|MODE_BLINKING)) {
694  log_debug("%s: cursor %s, %sblinking", __func__,
695  (mode & MODE_CURSOR) ? "on" : "off",
696  (mode & MODE_BLINKING) ? "" : "not ");
697  if (~mode & MODE_CURSOR)
699  else if (mode & MODE_BLINKING) {
703  } else
705  }
706 
707  if ((changed & ALL_MOUSE_MODES) &&
709  /*
710  * If the mouse modes have changed, clear any that are set and
711  * apply again. There are differences in how terminals track
712  * the various bits.
713  */
714  if (tty->mode & MODE_MOUSE_SGR)
715  tty_puts(tty, "\033[?1006l");
717  tty_puts(tty, "\033[?1000l");
718  if (tty->mode & MODE_MOUSE_BUTTON)
719  tty_puts(tty, "\033[?1002l");
720  if (tty->mode & MODE_MOUSE_ALL)
721  tty_puts(tty, "\033[?1003l");
722  if (mode & ALL_MOUSE_MODES)
723  tty_puts(tty, "\033[?1006h");
724  if (mode & MODE_MOUSE_STANDARD)
725  tty_puts(tty, "\033[?1000h");
726  if (mode & MODE_MOUSE_BUTTON)
727  tty_puts(tty, "\033[?1002h");
728  if (mode & MODE_MOUSE_ALL)
729  tty_puts(tty, "\033[?1003h");
730  }
731  if (changed & MODE_BRACKETPASTE) {
732  if (mode & MODE_BRACKETPASTE)
734  else
736  }
737  tty->mode = mode;
738 }
739 
740 static void
742  enum tty_code_code code1, u_int n)
743 {
744  if (tty_term_has(tty->term, code))
745  tty_putcode1(tty, code, n);
746  else {
747  while (n-- > 0)
748  tty_putcode(tty, code1);
749  }
750 }
751 
752 static void
753 tty_repeat_space(struct tty *tty, u_int n)
754 {
755  static char s[500];
756 
757  if (*s != ' ')
758  memset(s, ' ', sizeof s);
759 
760  while (n > sizeof s) {
761  tty_putn(tty, s, sizeof s, sizeof s);
762  n -= sizeof s;
763  }
764  if (n != 0)
765  tty_putn(tty, s, n, n);
766 }
767 
768 /* Is this window bigger than the terminal? */
769 int
771 {
772  struct client *c = tty->client;
773  struct window *w = c->session->curw->window;
774 
775  return (tty->sx < w->sx || tty->sy - status_line_size(c) < w->sy);
776 }
777 
778 /* What offset should this window be drawn at? */
779 int
780 tty_window_offset(struct tty *tty, u_int *ox, u_int *oy, u_int *sx, u_int *sy)
781 {
782  *ox = tty->oox;
783  *oy = tty->ooy;
784  *sx = tty->osx;
785  *sy = tty->osy;
786 
787  return (tty->oflag);
788 }
789 
790 /* What offset should this window be drawn at? */
791 static int
792 tty_window_offset1(struct tty *tty, u_int *ox, u_int *oy, u_int *sx, u_int *sy)
793 {
794  struct client *c = tty->client;
795  struct window *w = c->session->curw->window;
796  struct window_pane *wp = server_client_get_pane(c);
797  u_int cx, cy, lines;
798 
799  lines = status_line_size(c);
800 
801  if (tty->sx >= w->sx && tty->sy - lines >= w->sy) {
802  *ox = 0;
803  *oy = 0;
804  *sx = w->sx;
805  *sy = w->sy;
806 
807  c->pan_window = NULL;
808  return (0);
809  }
810 
811  *sx = tty->sx;
812  *sy = tty->sy - lines;
813 
814  if (c->pan_window == w) {
815  if (*sx >= w->sx)
816  c->pan_ox = 0;
817  else if (c->pan_ox + *sx > w->sx)
818  c->pan_ox = w->sx - *sx;
819  *ox = c->pan_ox;
820  if (*sy >= w->sy)
821  c->pan_oy = 0;
822  else if (c->pan_oy + *sy > w->sy)
823  c->pan_oy = w->sy - *sy;
824  *oy = c->pan_oy;
825  return (1);
826  }
827 
828  if (~wp->screen->mode & MODE_CURSOR) {
829  *ox = 0;
830  *oy = 0;
831  } else {
832  cx = wp->xoff + wp->screen->cx;
833  cy = wp->yoff + wp->screen->cy;
834 
835  if (cx < *sx)
836  *ox = 0;
837  else if (cx > w->sx - *sx)
838  *ox = w->sx - *sx;
839  else
840  *ox = cx - *sx / 2;
841 
842  if (cy < *sy)
843  *oy = 0;
844  else if (cy > w->sy - *sy)
845  *oy = w->sy - *sy;
846  else
847  *oy = cy - *sy / 2;
848  }
849 
850  c->pan_window = NULL;
851  return (1);
852 }
853 
854 /* Update stored offsets for a window and redraw if necessary. */
855 void
857 {
858  struct client *c;
859 
860  TAILQ_FOREACH(c, &clients, entry) {
861  if (c->session != NULL && c->session->curw->window == w)
863  }
864 }
865 
866 /* Update stored offsets for a client and redraw if necessary. */
867 void
869 {
870  u_int ox, oy, sx, sy;
871 
872  if (~c->flags & CLIENT_TERMINAL)
873  return;
874 
875  c->tty.oflag = tty_window_offset1(&c->tty, &ox, &oy, &sx, &sy);
876  if (ox == c->tty.oox &&
877  oy == c->tty.ooy &&
878  sx == c->tty.osx &&
879  sy == c->tty.osy)
880  return;
881 
882  log_debug ("%s: %s offset has changed (%u,%u %ux%u -> %u,%u %ux%u)",
883  __func__, c->name, c->tty.oox, c->tty.ooy, c->tty.osx, c->tty.osy,
884  ox, oy, sx, sy);
885 
886  c->tty.oox = ox;
887  c->tty.ooy = oy;
888  c->tty.osx = sx;
889  c->tty.osy = sy;
890 
892 }
893 
894 /* Get a palette entry. */
895 static int
896 tty_get_palette(int *palette, int c)
897 {
898  int new;
899 
900  if (palette == NULL)
901  return (-1);
902 
903  new = -1;
904  if (c < 8)
905  new = palette[c];
906  else if (c >= 90 && c <= 97)
907  new = palette[8 + c - 90];
908  else if (c & COLOUR_FLAG_256)
909  new = palette[c & ~~COLOUR_FLAG_256];
910  if (new == 0)
911  return (-1);
912  return (new);
913 }
914 
915 /*
916  * Is the region large enough to be worth redrawing once later rather than
917  * probably several times now? Currently yes if it is more than 50% of the
918  * pane.
919  */
920 static int
921 tty_large_region(__unused struct tty *tty, const struct tty_ctx *ctx)
922 {
923  return (ctx->orlower - ctx->orupper >= ctx->sy / 2);
924 }
925 
926 /*
927  * Return if BCE is needed but the terminal doesn't have it - it'll need to be
928  * emulated.
929  */
930 static int
931 tty_fake_bce(const struct tty *tty, const struct grid_cell *gc, u_int bg)
932 {
934  return (0);
935  if (!COLOUR_DEFAULT(bg) || !COLOUR_DEFAULT(gc->bg))
936  return (1);
937  return (0);
938 }
939 
940 /*
941  * Redraw scroll region using data from screen (already updated). Used when
942  * CSR not supported, or window is a pane that doesn't take up the full
943  * width of the terminal.
944  */
945 static void
946 tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
947 {
948  struct client *c = tty->client;
949  u_int i;
950 
951  /*
952  * If region is large, schedule a redraw. In most cases this is likely
953  * to be followed by some more scrolling.
954  */
955  if (tty_large_region(tty, ctx)) {
956  log_debug("%s: %s large redraw", __func__, c->name);
957  ctx->redraw_cb(ctx);
958  return;
959  }
960 
961  for (i = ctx->orupper; i <= ctx->orlower; i++)
962  tty_draw_pane(tty, ctx, i);
963 }
964 
965 /* Is this position visible in the pane? */
966 static int
967 tty_is_visible(__unused struct tty *tty, const struct tty_ctx *ctx, u_int px,
968  u_int py, u_int nx, u_int ny)
969 {
970  u_int xoff = ctx->rxoff + px, yoff = ctx->ryoff + py;
971 
972  if (!ctx->bigger)
973  return (1);
974 
975  if (xoff + nx <= ctx->wox || xoff >= ctx->wox + ctx->wsx ||
976  yoff + ny <= ctx->woy || yoff >= ctx->woy + ctx->wsy)
977  return (0);
978  return (1);
979 }
980 
981 /* Clamp line position to visible part of pane. */
982 static int
983 tty_clamp_line(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py,
984  u_int nx, u_int *i, u_int *x, u_int *rx, u_int *ry)
985 {
986  u_int xoff = ctx->rxoff + px;
987 
988  if (!tty_is_visible(tty, ctx, px, py, nx, 1))
989  return (0);
990  *ry = ctx->yoff + py - ctx->woy;
991 
992  if (xoff >= ctx->wox && xoff + nx <= ctx->wox + ctx->wsx) {
993  /* All visible. */
994  *i = 0;
995  *x = ctx->xoff + px - ctx->wox;
996  *rx = nx;
997  } else if (xoff < ctx->wox && xoff + nx > ctx->wox + ctx->wsx) {
998  /* Both left and right not visible. */
999  *i = ctx->wox;
1000  *x = 0;
1001  *rx = ctx->wsx;
1002  } else if (xoff < ctx->wox) {
1003  /* Left not visible. */
1004  *i = ctx->wox - (ctx->xoff + px);
1005  *x = 0;
1006  *rx = nx - *i;
1007  } else {
1008  /* Right not visible. */
1009  *i = 0;
1010  *x = (ctx->xoff + px) - ctx->wox;
1011  *rx = ctx->wsx - *x;
1012  }
1013  if (*rx > nx)
1014  fatalx("%s: x too big, %u > %u", __func__, *rx, nx);
1015 
1016  return (1);
1017 }
1018 
1019 /* Clear a line. */
1020 static void
1021 tty_clear_line(struct tty *tty, const struct grid_cell *defaults, u_int py,
1022  u_int px, u_int nx, u_int bg)
1023 {
1024  struct client *c = tty->client;
1025 
1026  log_debug("%s: %s, %u at %u,%u", __func__, c->name, nx, px, py);
1027 
1028  /* Nothing to clear. */
1029  if (nx == 0)
1030  return;
1031 
1032  /* If genuine BCE is available, can try escape sequences. */
1033  if (!tty_fake_bce(tty, defaults, bg)) {
1034  /* Off the end of the line, use EL if available. */
1035  if (px + nx >= tty->sx && tty_term_has(tty->term, TTYC_EL)) {
1036  tty_cursor(tty, px, py);
1038  return;
1039  }
1040 
1041  /* At the start of the line. Use EL1. */
1042  if (px == 0 && tty_term_has(tty->term, TTYC_EL1)) {
1043  tty_cursor(tty, px + nx - 1, py);
1045  return;
1046  }
1047 
1048  /* Section of line. Use ECH if possible. */
1049  if (tty_term_has(tty->term, TTYC_ECH)) {
1050  tty_cursor(tty, px, py);
1051  tty_putcode1(tty, TTYC_ECH, nx);
1052  return;
1053  }
1054  }
1055 
1056  /* Couldn't use an escape sequence, use spaces. */
1057  tty_cursor(tty, px, py);
1058  tty_repeat_space(tty, nx);
1059 }
1060 
1061 /* Clear a line, adjusting to visible part of pane. */
1062 static void
1063 tty_clear_pane_line(struct tty *tty, const struct tty_ctx *ctx, u_int py,
1064  u_int px, u_int nx, u_int bg)
1065 {
1066  struct client *c = tty->client;
1067  u_int i, x, rx, ry;
1068 
1069  log_debug("%s: %s, %u at %u,%u", __func__, c->name, nx, px, py);
1070 
1071  if (tty_clamp_line(tty, ctx, px, py, nx, &i, &x, &rx, &ry))
1072  tty_clear_line(tty, &ctx->defaults, ry, x, rx, bg);
1073 }
1074 
1075 /* Clamp area position to visible part of pane. */
1076 static int
1077 tty_clamp_area(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py,
1078  u_int nx, u_int ny, u_int *i, u_int *j, u_int *x, u_int *y, u_int *rx,
1079  u_int *ry)
1080 {
1081  u_int xoff = ctx->rxoff + px, yoff = ctx->ryoff + py;
1082 
1083  if (!tty_is_visible(tty, ctx, px, py, nx, ny))
1084  return (0);
1085 
1086  if (xoff >= ctx->wox && xoff + nx <= ctx->wox + ctx->wsx) {
1087  /* All visible. */
1088  *i = 0;
1089  *x = ctx->xoff + px - ctx->wox;
1090  *rx = nx;
1091  } else if (xoff < ctx->wox && xoff + nx > ctx->wox + ctx->wsx) {
1092  /* Both left and right not visible. */
1093  *i = ctx->wox;
1094  *x = 0;
1095  *rx = ctx->wsx;
1096  } else if (xoff < ctx->wox) {
1097  /* Left not visible. */
1098  *i = ctx->wox - (ctx->xoff + px);
1099  *x = 0;
1100  *rx = nx - *i;
1101  } else {
1102  /* Right not visible. */
1103  *i = 0;
1104  *x = (ctx->xoff + px) - ctx->wox;
1105  *rx = ctx->wsx - *x;
1106  }
1107  if (*rx > nx)
1108  fatalx("%s: x too big, %u > %u", __func__, *rx, nx);
1109 
1110  if (yoff >= ctx->woy && yoff + ny <= ctx->woy + ctx->wsy) {
1111  /* All visible. */
1112  *j = 0;
1113  *y = ctx->yoff + py - ctx->woy;
1114  *ry = ny;
1115  } else if (yoff < ctx->woy && yoff + ny > ctx->woy + ctx->wsy) {
1116  /* Both top and bottom not visible. */
1117  *j = ctx->woy;
1118  *y = 0;
1119  *ry = ctx->wsy;
1120  } else if (yoff < ctx->woy) {
1121  /* Top not visible. */
1122  *j = ctx->woy - (ctx->yoff + py);
1123  *y = 0;
1124  *ry = ny - *j;
1125  } else {
1126  /* Bottom not visible. */
1127  *j = 0;
1128  *y = (ctx->yoff + py) - ctx->woy;
1129  *ry = ctx->wsy - *y;
1130  }
1131  if (*ry > ny)
1132  fatalx("%s: y too big, %u > %u", __func__, *ry, ny);
1133 
1134  return (1);
1135 }
1136 
1137 /* Clear an area, adjusting to visible part of pane. */
1138 static void
1139 tty_clear_area(struct tty *tty, const struct grid_cell *defaults, u_int py,
1140  u_int ny, u_int px, u_int nx, u_int bg)
1141 {
1142  struct client *c = tty->client;
1143  u_int yy;
1144  char tmp[64];
1145 
1146  log_debug("%s: %s, %u,%u at %u,%u", __func__, c->name, nx, ny, px, py);
1147 
1148  /* Nothing to clear. */
1149  if (nx == 0 || ny == 0)
1150  return;
1151 
1152  /* If genuine BCE is available, can try escape sequences. */
1153  if (!tty_fake_bce(tty, defaults, bg)) {
1154  /* Use ED if clearing off the bottom of the terminal. */
1155  if (px == 0 &&
1156  px + nx >= tty->sx &&
1157  py + ny >= tty->sy &&
1159  tty_cursor(tty, 0, py);
1161  return;
1162  }
1163 
1164  /*
1165  * On VT420 compatible terminals we can use DECFRA if the
1166  * background colour isn't default (because it doesn't work
1167  * after SGR 0).
1168  */
1169  if ((tty->term->flags & TERM_DECFRA) && !COLOUR_DEFAULT(bg)) {
1170  xsnprintf(tmp, sizeof tmp, "\033[32;%u;%u;%u;%u$x",
1171  py + 1, px + 1, py + ny, px + nx);
1172  tty_puts(tty, tmp);
1173  return;
1174  }
1175 
1176  /* Full lines can be scrolled away to clear them. */
1177  if (px == 0 &&
1178  px + nx >= tty->sx &&
1179  ny > 2 &&
1182  tty_region(tty, py, py + ny - 1);
1184  tty_putcode1(tty, TTYC_INDN, ny);
1185  return;
1186  }
1187 
1188  /*
1189  * If margins are supported, can just scroll the area off to
1190  * clear it.
1191  */
1192  if (nx > 2 &&
1193  ny > 2 &&
1195  tty_use_margin(tty) &&
1197  tty_region(tty, py, py + ny - 1);
1198  tty_margin(tty, px, px + nx - 1);
1199  tty_putcode1(tty, TTYC_INDN, ny);
1200  return;
1201  }
1202  }
1203 
1204  /* Couldn't use an escape sequence, loop over the lines. */
1205  for (yy = py; yy < py + ny; yy++)
1206  tty_clear_line(tty, defaults, yy, px, nx, bg);
1207 }
1208 
1209 /* Clear an area in a pane. */
1210 static void
1211 tty_clear_pane_area(struct tty *tty, const struct tty_ctx *ctx, u_int py,
1212  u_int ny, u_int px, u_int nx, u_int bg)
1213 {
1214  u_int i, j, x, y, rx, ry;
1215 
1216  if (tty_clamp_area(tty, ctx, px, py, nx, ny, &i, &j, &x, &y, &rx, &ry))
1217  tty_clear_area(tty, &ctx->defaults, y, ry, x, rx, bg);
1218 }
1219 
1220 static void
1221 tty_draw_pane(struct tty *tty, const struct tty_ctx *ctx, u_int py)
1222 {
1223  struct screen *s = ctx->s;
1224  u_int nx = ctx->sx, i, x, rx, ry;
1225 
1226  log_debug("%s: %s %u %d", __func__, tty->client->name, py, ctx->bigger);
1227 
1228  if (!ctx->bigger) {
1229  tty_draw_line(tty, s, 0, py, nx, ctx->xoff, ctx->yoff + py,
1230  &ctx->defaults, ctx->palette);
1231  return;
1232  }
1233  if (tty_clamp_line(tty, ctx, 0, py, nx, &i, &x, &rx, &ry)) {
1234  tty_draw_line(tty, s, i, py, rx, x, ry, &ctx->defaults,
1235  ctx->palette);
1236  }
1237 }
1238 
1239 static const struct grid_cell *
1240 tty_check_codeset(struct tty *tty, const struct grid_cell *gc)
1241 {
1242  static struct grid_cell new;
1243  int c;
1244 
1245  /* Characters less than 0x7f are always fine, no matter what. */
1246  if (gc->data.size == 1 && *gc->data.data < 0x7f)
1247  return (gc);
1248 
1249  /* UTF-8 terminal and a UTF-8 character - fine. */
1250  if (tty->client->flags & CLIENT_UTF8)
1251  return (gc);
1252  memcpy(&new, gc, sizeof new);
1253 
1254  /* See if this can be mapped to an ACS character. */
1255  c = tty_acs_reverse_get(tty, gc->data.data, gc->data.size);
1256  if (c != -1) {
1257  utf8_set(&new.data, c);
1258  new.attr |= GRID_ATTR_CHARSET;
1259  return (&new);
1260  }
1261 
1262  /* Replace by the right number of underscores. */
1263  new.data.size = gc->data.width;
1264  if (new.data.size > UTF8_SIZE)
1265  new.data.size = UTF8_SIZE;
1266  memset(new.data.data, '_', new.data.size);
1267  return (&new);
1268 }
1269 
1270 static int
1271 tty_check_overlay(struct tty *tty, u_int px, u_int py)
1272 {
1273  struct client *c = tty->client;
1274 
1275  if (c->overlay_check == NULL)
1276  return (1);
1277  return (c->overlay_check(c, px, py));
1278 }
1279 
1280 void
1281 tty_draw_line(struct tty *tty, struct screen *s, u_int px, u_int py, u_int nx,
1282  u_int atx, u_int aty, const struct grid_cell *defaults, int *palette)
1283 {
1284  struct grid *gd = s->grid;
1285  struct grid_cell gc, last;
1286  const struct grid_cell *gcp;
1287  struct grid_line *gl;
1288  u_int i, j, ux, sx, width;
1289  int flags, cleared = 0, wrapped = 0;
1290  char buf[512];
1291  size_t len;
1292  u_int cellsize;
1293 
1294  log_debug("%s: px=%u py=%u nx=%u atx=%u aty=%u", __func__,
1295  px, py, nx, atx, aty);
1296 
1297  /*
1298  * py is the line in the screen to draw.
1299  * px is the start x and nx is the width to draw.
1300  * atx,aty is the line on the terminal to draw it.
1301  */
1302 
1303  flags = (tty->flags & TTY_NOCURSOR);
1304  tty->flags |= TTY_NOCURSOR;
1305  tty_update_mode(tty, tty->mode, s);
1306 
1309 
1310  /*
1311  * Clamp the width to cellsize - note this is not cellused, because
1312  * there may be empty background cells after it (from BCE).
1313  */
1314  sx = screen_size_x(s);
1315  if (nx > sx)
1316  nx = sx;
1317  cellsize = grid_get_line(gd, gd->hsize + py)->cellsize;
1318  if (sx > cellsize)
1319  sx = cellsize;
1320  if (sx > tty->sx)
1321  sx = tty->sx;
1322  if (sx > nx)
1323  sx = nx;
1324  ux = 0;
1325 
1326  if (py == 0)
1327  gl = NULL;
1328  else
1329  gl = grid_get_line(gd, gd->hsize + py - 1);
1330  if (gl == NULL ||
1331  (~gl->flags & GRID_LINE_WRAPPED) ||
1332  atx != 0 ||
1333  tty->cx < tty->sx ||
1334  nx < tty->sx) {
1335  if (nx < tty->sx &&
1336  atx == 0 &&
1337  px + sx != nx &&
1339  !tty_fake_bce(tty, defaults, 8)) {
1340  tty_default_attributes(tty, defaults, palette, 8);
1341  tty_cursor(tty, nx - 1, aty);
1343  cleared = 1;
1344  }
1345  } else {
1346  log_debug("%s: wrapped line %u", __func__, aty);
1347  wrapped = 1;
1348  }
1349 
1350  memcpy(&last, &grid_default_cell, sizeof last);
1351  len = 0;
1352  width = 0;
1353 
1354  for (i = 0; i < sx; i++) {
1355  grid_view_get_cell(gd, px + i, py, &gc);
1356  gcp = tty_check_codeset(tty, &gc);
1357  if (len != 0 &&
1358  (!tty_check_overlay(tty, atx + ux + width, aty) ||
1359  (gcp->attr & GRID_ATTR_CHARSET) ||
1360  gcp->flags != last.flags ||
1361  gcp->attr != last.attr ||
1362  gcp->fg != last.fg ||
1363  gcp->bg != last.bg ||
1364  gcp->us != last.us ||
1365  ux + width + gcp->data.width > nx ||
1366  (sizeof buf) - len < gcp->data.size)) {
1367  tty_attributes(tty, &last, defaults, palette);
1368  if (last.flags & GRID_FLAG_CLEARED) {
1369  log_debug("%s: %zu cleared", __func__, len);
1370  tty_clear_line(tty, defaults, aty, atx + ux,
1371  width, last.bg);
1372  } else {
1373  if (!wrapped || atx != 0 || ux != 0)
1374  tty_cursor(tty, atx + ux, aty);
1375  tty_putn(tty, buf, len, width);
1376  }
1377  ux += width;
1378 
1379  len = 0;
1380  width = 0;
1381  wrapped = 0;
1382  }
1383 
1384  if (gcp->flags & GRID_FLAG_SELECTED)
1385  screen_select_cell(s, &last, gcp);
1386  else
1387  memcpy(&last, gcp, sizeof last);
1388  if (!tty_check_overlay(tty, atx + ux, aty)) {
1389  if (~gcp->flags & GRID_FLAG_PADDING)
1390  ux += gcp->data.width;
1391  } else if (ux + gcp->data.width > nx) {
1392  tty_attributes(tty, &last, defaults, palette);
1393  tty_cursor(tty, atx + ux, aty);
1394  for (j = 0; j < gcp->data.width; j++) {
1395  if (ux + j > nx)
1396  break;
1397  tty_putc(tty, ' ');
1398  ux++;
1399  }
1400  } else if (gcp->attr & GRID_ATTR_CHARSET) {
1401  tty_attributes(tty, &last, defaults, palette);
1402  tty_cursor(tty, atx + ux, aty);
1403  for (j = 0; j < gcp->data.size; j++)
1404  tty_putc(tty, gcp->data.data[j]);
1405  ux += gcp->data.width;
1406  } else if (~gcp->flags & GRID_FLAG_PADDING) {
1407  memcpy(buf + len, gcp->data.data, gcp->data.size);
1408  len += gcp->data.size;
1409  width += gcp->data.width;
1410  }
1411  }
1412  if (len != 0 && ((~last.flags & GRID_FLAG_CLEARED) || last.bg != 8)) {
1413  tty_attributes(tty, &last, defaults, palette);
1414  if (last.flags & GRID_FLAG_CLEARED) {
1415  log_debug("%s: %zu cleared (end)", __func__, len);
1416  tty_clear_line(tty, defaults, aty, atx + ux, width,
1417  last.bg);
1418  } else {
1419  if (!wrapped || atx != 0 || ux != 0)
1420  tty_cursor(tty, atx + ux, aty);
1421  tty_putn(tty, buf, len, width);
1422  }
1423  ux += width;
1424  }
1425 
1426  if (!cleared && ux < nx) {
1427  log_debug("%s: %u to end of line (%zu cleared)", __func__,
1428  nx - ux, len);
1429  tty_default_attributes(tty, defaults, palette, 8);
1430  tty_clear_line(tty, defaults, aty, atx + ux, nx - ux, 8);
1431  }
1432 
1433  tty->flags = (tty->flags & ~~TTY_NOCURSOR) | flags;
1434  tty_update_mode(tty, tty->mode, s);
1435 }
1436 
1437 void
1439 {
1440  if (tty->flags & TTY_BLOCK)
1441  return;
1442  if (tty->flags & TTY_SYNCING)
1443  return;
1444  tty->flags |= TTY_SYNCING;
1445 
1446  if (tty_term_has(tty->term, TTYC_SYNC)) {
1447  log_debug("%s sync start", tty->client->name);
1448  tty_putcode1(tty, TTYC_SYNC, 1);
1449  }
1450 }
1451 
1452 void
1454 {
1455  if (tty->flags & TTY_BLOCK)
1456  return;
1457  if (~tty->flags & TTY_SYNCING)
1458  return;
1459  tty->flags &= ~~TTY_SYNCING;
1460 
1461  if (tty_term_has(tty->term, TTYC_SYNC)) {
1462  log_debug("%s sync end", tty->client->name);
1463  tty_putcode1(tty, TTYC_SYNC, 2);
1464  }
1465 }
1466 
1467 static int
1469 {
1470  if (c->session == NULL || c->tty.term == NULL)
1471  return (0);
1473  return (0);
1474  if (c->tty.flags & TTY_FREEZE)
1475  return (0);
1476  return (1);
1477 }
1478 
1479 void
1480 tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *),
1481  struct tty_ctx *ctx)
1482 {
1483  struct client *c;
1484  int state;
1485 
1486  if (ctx->set_client_cb == NULL)
1487  return;
1488  TAILQ_FOREACH(c, &clients, entry) {
1489  if (!tty_client_ready(c))
1490  continue;
1491  state = ctx->set_client_cb(ctx, c);
1492  if (state == -1)
1493  break;
1494  if (state == 0)
1495  continue;
1496  cmdfn(&c->tty, ctx);
1497  }
1498 }
1499 
1500 void
1501 tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
1502 {
1503  if (ctx->bigger ||
1504  !tty_full_width(tty, ctx) ||
1505  tty_fake_bce(tty, &ctx->defaults, ctx->bg) ||
1506  (!tty_term_has(tty->term, TTYC_ICH) &&
1507  !tty_term_has(tty->term, TTYC_ICH1))) {
1508  tty_draw_pane(tty, ctx, ctx->ocy);
1509  return;
1510  }
1511 
1512  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1513 
1514  tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1515 
1517 }
1518 
1519 void
1520 tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
1521 {
1522  if (ctx->bigger ||
1523  !tty_full_width(tty, ctx) ||
1524  tty_fake_bce(tty, &ctx->defaults, ctx->bg) ||
1525  (!tty_term_has(tty->term, TTYC_DCH) &&
1526  !tty_term_has(tty->term, TTYC_DCH1))) {
1527  tty_draw_pane(tty, ctx, ctx->ocy);
1528  return;
1529  }
1530 
1531  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1532 
1533  tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1534 
1536 }
1537 
1538 void
1539 tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx)
1540 {
1541  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1542 
1543  tty_clear_pane_line(tty, ctx, ctx->ocy, ctx->ocx, ctx->num, ctx->bg);
1544 }
1545 
1546 void
1547 tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
1548 {
1549  if (ctx->bigger ||
1550  !tty_full_width(tty, ctx) ||
1551  tty_fake_bce(tty, &ctx->defaults, ctx->bg) ||
1552  !tty_term_has(tty->term, TTYC_CSR) ||
1553  !tty_term_has(tty->term, TTYC_IL1) ||
1554  ctx->sx == 1 ||
1555  ctx->sy == 1) {
1556  tty_redraw_region(tty, ctx);
1557  return;
1558  }
1559 
1560  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1561 
1562  tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1564  tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1565 
1567  tty->cx = tty->cy = UINT_MAX;
1568 }
1569 
1570 void
1571 tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
1572 {
1573  if (ctx->bigger ||
1574  !tty_full_width(tty, ctx) ||
1575  tty_fake_bce(tty, &ctx->defaults, ctx->bg) ||
1576  !tty_term_has(tty->term, TTYC_CSR) ||
1577  !tty_term_has(tty->term, TTYC_DL1) ||
1578  ctx->sx == 1 ||
1579  ctx->sy == 1) {
1580  tty_redraw_region(tty, ctx);
1581  return;
1582  }
1583 
1584  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1585 
1586  tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1588  tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1589 
1591  tty->cx = tty->cy = UINT_MAX;
1592 }
1593 
1594 void
1595 tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
1596 {
1597  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1598 
1599  tty_clear_pane_line(tty, ctx, ctx->ocy, 0, ctx->sx, ctx->bg);
1600 }
1601 
1602 void
1603 tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
1604 {
1605  u_int nx = ctx->sx - ctx->ocx;
1606 
1607  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1608 
1609  tty_clear_pane_line(tty, ctx, ctx->ocy, ctx->ocx, nx, ctx->bg);
1610 }
1611 
1612 void
1613 tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
1614 {
1615  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1616 
1617  tty_clear_pane_line(tty, ctx, ctx->ocy, 0, ctx->ocx + 1, ctx->bg);
1618 }
1619 
1620 void
1621 tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
1622 {
1623  if (ctx->ocy != ctx->orupper)
1624  return;
1625 
1626  if (ctx->bigger ||
1627  (!tty_full_width(tty, ctx) && !tty_use_margin(tty)) ||
1628  tty_fake_bce(tty, &ctx->defaults, 8) ||
1629  !tty_term_has(tty->term, TTYC_CSR) ||
1630  (!tty_term_has(tty->term, TTYC_RI) &&
1631  !tty_term_has(tty->term, TTYC_RIN)) ||
1632  ctx->sx == 1 ||
1633  ctx->sy == 1) {
1634  tty_redraw_region(tty, ctx);
1635  return;
1636  }
1637 
1638  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1639 
1640  tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1641  tty_margin_pane(tty, ctx);
1642  tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
1643 
1644  if (tty_term_has(tty->term, TTYC_RI))
1646  else
1647  tty_putcode1(tty, TTYC_RIN, 1);
1648 }
1649 
1650 void
1651 tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
1652 {
1653  if (ctx->ocy != ctx->orlower)
1654  return;
1655 
1656  if (ctx->bigger ||
1657  (!tty_full_width(tty, ctx) && !tty_use_margin(tty)) ||
1658  tty_fake_bce(tty, &ctx->defaults, 8) ||
1659  !tty_term_has(tty->term, TTYC_CSR) ||
1660  ctx->sx == 1 ||
1661  ctx->sy == 1) {
1662  tty_redraw_region(tty, ctx);
1663  return;
1664  }
1665 
1666  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1667 
1668  tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1669  tty_margin_pane(tty, ctx);
1670 
1671  /*
1672  * If we want to wrap a pane while using margins, the cursor needs to
1673  * be exactly on the right of the region. If the cursor is entirely off
1674  * the edge - move it back to the right. Some terminals are funny about
1675  * this and insert extra spaces, so only use the right if margins are
1676  * enabled.
1677  */
1678  if (ctx->xoff + ctx->ocx > tty->rright) {
1679  if (!tty_use_margin(tty))
1680  tty_cursor(tty, 0, ctx->yoff + ctx->ocy);
1681  else
1682  tty_cursor(tty, tty->rright, ctx->yoff + ctx->ocy);
1683  } else
1684  tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1685 
1686  tty_putc(tty, '\n');
1687 }
1688 
1689 void
1690 tty_cmd_scrollup(struct tty *tty, const struct tty_ctx *ctx)
1691 {
1692  u_int i;
1693 
1694  if (ctx->bigger ||
1695  (!tty_full_width(tty, ctx) && !tty_use_margin(tty)) ||
1696  tty_fake_bce(tty, &ctx->defaults, 8) ||
1697  !tty_term_has(tty->term, TTYC_CSR) ||
1698  ctx->sx == 1 ||
1699  ctx->sy == 1) {
1700  tty_redraw_region(tty, ctx);
1701  return;
1702  }
1703 
1704  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1705 
1706  tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1707  tty_margin_pane(tty, ctx);
1708 
1709  if (ctx->num == 1 || !tty_term_has(tty->term, TTYC_INDN)) {
1710  if (!tty_use_margin(tty))
1711  tty_cursor(tty, 0, tty->rlower);
1712  else
1714  for (i = 0; i < ctx->num; i++)
1715  tty_putc(tty, '\n');
1716  } else {
1717  if (tty->cy == UINT_MAX)
1718  tty_cursor(tty, 0, 0);
1719  else
1720  tty_cursor(tty, 0, tty->cy);
1721  tty_putcode1(tty, TTYC_INDN, ctx->num);
1722  }
1723 }
1724 
1725 void
1726 tty_cmd_scrolldown(struct tty *tty, const struct tty_ctx *ctx)
1727 {
1728  u_int i;
1729 
1730  if (ctx->bigger ||
1731  (!tty_full_width(tty, ctx) && !tty_use_margin(tty)) ||
1732  tty_fake_bce(tty, &ctx->defaults, 8) ||
1733  !tty_term_has(tty->term, TTYC_CSR) ||
1734  (!tty_term_has(tty->term, TTYC_RI) &&
1735  !tty_term_has(tty->term, TTYC_RIN)) ||
1736  ctx->sx == 1 ||
1737  ctx->sy == 1) {
1738  tty_redraw_region(tty, ctx);
1739  return;
1740  }
1741 
1742  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1743 
1744  tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1745  tty_margin_pane(tty, ctx);
1746  tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
1747 
1748  if (tty_term_has(tty->term, TTYC_RIN))
1749  tty_putcode1(tty, TTYC_RIN, ctx->num);
1750  else {
1751  for (i = 0; i < ctx->num; i++)
1753  }
1754 }
1755 
1756 void
1757 tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
1758 {
1759  u_int px, py, nx, ny;
1760 
1761  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1762 
1763  tty_region_pane(tty, ctx, 0, ctx->sy - 1);
1765 
1766  px = 0;
1767  nx = ctx->sx;
1768  py = ctx->ocy + 1;
1769  ny = ctx->sy - ctx->ocy - 1;
1770 
1771  tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg);
1772 
1773  px = ctx->ocx;
1774  nx = ctx->sx - ctx->ocx;
1775  py = ctx->ocy;
1776 
1777  tty_clear_pane_line(tty, ctx, py, px, nx, ctx->bg);
1778 }
1779 
1780 void
1781 tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
1782 {
1783  u_int px, py, nx, ny;
1784 
1785  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1786 
1787  tty_region_pane(tty, ctx, 0, ctx->sy - 1);
1789 
1790  px = 0;
1791  nx = ctx->sx;
1792  py = 0;
1793  ny = ctx->ocy;
1794 
1795  tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg);
1796 
1797  px = 0;
1798  nx = ctx->ocx + 1;
1799  py = ctx->ocy;
1800 
1801  tty_clear_pane_line(tty, ctx, py, px, nx, ctx->bg);
1802 }
1803 
1804 void
1805 tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
1806 {
1807  u_int px, py, nx, ny;
1808 
1809  tty_default_attributes(tty, &ctx->defaults, ctx->palette, ctx->bg);
1810 
1811  tty_region_pane(tty, ctx, 0, ctx->sy - 1);
1813 
1814  px = 0;
1815  nx = ctx->sx;
1816  py = 0;
1817  ny = ctx->sy;
1818 
1819  tty_clear_pane_area(tty, ctx, py, ny, px, nx, ctx->bg);
1820 }
1821 
1822 void
1823 tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
1824 {
1825  u_int i, j;
1826 
1827  if (ctx->bigger) {
1828  ctx->redraw_cb(ctx);
1829  return;
1830  }
1831 
1833 
1834  tty_region_pane(tty, ctx, 0, ctx->sy - 1);
1836 
1837  for (j = 0; j < ctx->sy; j++) {
1838  tty_cursor_pane(tty, ctx, 0, j);
1839  for (i = 0; i < ctx->sx; i++)
1840  tty_putc(tty, 'E');
1841  }
1842 }
1843 
1844 void
1845 tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
1846 {
1847  if (!tty_is_visible(tty, ctx, ctx->ocx, ctx->ocy, 1, 1))
1848  return;
1849 
1850  if (ctx->xoff + ctx->ocx - ctx->wox > tty->sx - 1 &&
1851  ctx->ocy == ctx->orlower &&
1852  tty_full_width(tty, ctx))
1853  tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1854 
1856  tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy);
1857 
1858  tty_cell(tty, ctx->cell, &ctx->defaults, ctx->palette);
1859 }
1860 
1861 void
1862 tty_cmd_cells(struct tty *tty, const struct tty_ctx *ctx)
1863 {
1864  if (!tty_is_visible(tty, ctx, ctx->ocx, ctx->ocy, ctx->num, 1))
1865  return;
1866 
1867  if (ctx->bigger &&
1868  (ctx->xoff + ctx->ocx < ctx->wox ||
1869  ctx->xoff + ctx->ocx + ctx->num > ctx->wox + ctx->wsx)) {
1870  if (!ctx->wrapped ||
1871  !tty_full_width(tty, ctx) ||
1872  (tty->term->flags & TERM_NOAM) ||
1873  ctx->xoff + ctx->ocx != 0 ||
1874  ctx->yoff + ctx->ocy != tty->cy + 1 ||
1875  tty->cx < tty->sx ||
1876  tty->cy == tty->rlower)
1877  tty_draw_pane(tty, ctx, ctx->ocy);
1878  else
1879  ctx->redraw_cb(ctx);
1880  return;
1881  }
1882 
1884  tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy);
1885 
1886  tty_attributes(tty, ctx->cell, &ctx->defaults, ctx->palette);
1887  tty_putn(tty, ctx->ptr, ctx->num, ctx->num);
1888 }
1889 
1890 void
1891 tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx)
1892 {
1893  tty_set_selection(tty, ctx->ptr, ctx->num);
1894 }
1895 
1896 void
1897 tty_set_selection(struct tty *tty, const char *buf, size_t len)
1898 {
1899  char *encoded;
1900  size_t size;
1901 
1902  if (~tty->flags & TTY_STARTED)
1903  return;
1904  if (!tty_term_has(tty->term, TTYC_MS))
1905  return;
1906 
1907  size = 4 * ((len + 2) / 3) + 1; /* storage for base64 */
1908  encoded = xmalloc(size);
1909 
1910  b64_ntop(buf, len, encoded, size);
1911  tty_putcode_ptr2(tty, TTYC_MS, "", encoded);
1912 
1913  free(encoded);
1914 }
1915 
1916 void
1917 tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
1918 {
1919  tty_add(tty, ctx->ptr, ctx->num);
1921 }
1922 
1923 void
1924 tty_cmd_syncstart(struct tty *tty, __unused const struct tty_ctx *ctx)
1925 {
1927 }
1928 
1929 void
1930 tty_cell(struct tty *tty, const struct grid_cell *gc,
1931  const struct grid_cell *defaults, int *palette)
1932 {
1933  const struct grid_cell *gcp;
1934 
1935  /* Skip last character if terminal is stupid. */
1936  if ((tty->term->flags & TERM_NOAM) &&
1937  tty->cy == tty->sy - 1 &&
1938  tty->cx == tty->sx - 1)
1939  return;
1940 
1941  /* If this is a padding character, do nothing. */
1942  if (gc->flags & GRID_FLAG_PADDING)
1943  return;
1944 
1945  /* Check the output codeset and apply attributes. */
1946  gcp = tty_check_codeset(tty, gc);
1947  tty_attributes(tty, gcp, defaults, palette);
1948 
1949  /* If it is a single character, write with putc to handle ACS. */
1950  if (gcp->data.size == 1) {
1951  tty_attributes(tty, gcp, defaults, palette);
1952  if (*gcp->data.data < 0x20 || *gcp->data.data == 0x7f)
1953  return;
1954  tty_putc(tty, *gcp->data.data);
1955  return;
1956  }
1957 
1958  /* Write the data. */
1959  tty_putn(tty, gcp->data.data, gcp->data.size, gcp->data.width);
1960 }
1961 
1962 void
1964 {
1965  struct grid_cell *gc = &tty->cell;
1966 
1967  if (!grid_cells_equal(gc, &grid_default_cell)) {
1968  if ((gc->attr & GRID_ATTR_CHARSET) && tty_acs_needed(tty))
1971  memcpy(gc, &grid_default_cell, sizeof *gc);
1972  }
1973  memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell);
1974 }
1975 
1976 static void
1978 {
1979  memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
1980  memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell);
1981 
1982  tty->cx = tty->cy = UINT_MAX;
1983  tty->rupper = tty->rleft = UINT_MAX;
1984  tty->rlower = tty->rright = UINT_MAX;
1985 
1986  if (tty->flags & TTY_STARTED) {
1987  if (tty_use_margin(tty))
1990 
1991  tty->mode = ALL_MODES;
1993 
1994  tty_cursor(tty, 0, 0);
1997  } else
1998  tty->mode = MODE_CURSOR;
1999 }
2000 
2001 /* Turn off margin. */
2002 void
2004 {
2005  tty_region(tty, 0, tty->sy - 1);
2006 }
2007 
2008 /* Set region inside pane. */
2009 static void
2010 tty_region_pane(struct tty *tty, const struct tty_ctx *ctx, u_int rupper,
2011  u_int rlower)
2012 {
2013  tty_region(tty, ctx->yoff + rupper - ctx->woy,
2014  ctx->yoff + rlower - ctx->woy);
2015 }
2016 
2017 /* Set region at absolute position. */
2018 static void
2019 tty_region(struct tty *tty, u_int rupper, u_int rlower)
2020 {
2021  if (tty->rlower == rlower && tty->rupper == rupper)
2022  return;
2023  if (!tty_term_has(tty->term, TTYC_CSR))
2024  return;
2025 
2026  tty->rupper = rupper;
2027  tty->rlower = rlower;
2028 
2029  /*
2030  * Some terminals (such as PuTTY) do not correctly reset the cursor to
2031  * 0,0 if it is beyond the last column (they do not reset their wrap
2032  * flag so further output causes a line feed). As a workaround, do an
2033  * explicit move to 0 first.
2034  */
2035  if (tty->cx >= tty->sx) {
2036  if (tty->cy == UINT_MAX)
2037  tty_cursor(tty, 0, 0);
2038  else
2039  tty_cursor(tty, 0, tty->cy);
2040  }
2041 
2043  tty->cx = tty->cy = UINT_MAX;
2044 }
2045 
2046 /* Turn off margin. */
2047 void
2049 {
2050  tty_margin(tty, 0, tty->sx - 1);
2051 }
2052 
2053 /* Set margin inside pane. */
2054 static void
2055 tty_margin_pane(struct tty *tty, const struct tty_ctx *ctx)
2056 {
2057  tty_margin(tty, ctx->xoff - ctx->wox,
2058  ctx->xoff + ctx->sx - 1 - ctx->wox);
2059 }
2060 
2061 /* Set margin at absolute position. */
2062 static void
2063 tty_margin(struct tty *tty, u_int rleft, u_int rright)
2064 {
2065  if (!tty_use_margin(tty))
2066  return;
2067  if (tty->rleft == rleft && tty->rright == rright)
2068  return;
2069 
2071 
2072  tty->rleft = rleft;
2073  tty->rright = rright;
2074 
2075  if (rleft == 0 && rright == tty->sx - 1)
2077  else
2078  tty_putcode2(tty, TTYC_CMG, rleft, rright);
2079  tty->cx = tty->cy = UINT_MAX;
2080 }
2081 
2082 /*
2083  * Move the cursor, unless it would wrap itself when the next character is
2084  * printed.
2085  */
2086 static void
2087 tty_cursor_pane_unless_wrap(struct tty *tty, const struct tty_ctx *ctx,
2088  u_int cx, u_int cy)
2089 {
2090  if (!ctx->wrapped ||
2091  !tty_full_width(tty, ctx) ||
2092  (tty->term->flags & TERM_NOAM) ||
2093  ctx->xoff + cx != 0 ||
2094  ctx->yoff + cy != tty->cy + 1 ||
2095  tty->cx < tty->sx ||
2096  tty->cy == tty->rlower)
2097  tty_cursor_pane(tty, ctx, cx, cy);
2098  else
2099  log_debug("%s: will wrap at %u,%u", __func__, tty->cx, tty->cy);
2100 }
2101 
2102 /* Move cursor inside pane. */
2103 static void
2104 tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
2105 {
2106  tty_cursor(tty, ctx->xoff + cx - ctx->wox, ctx->yoff + cy - ctx->woy);
2107 }
2108 
2109 /* Move cursor to absolute position. */
2110 void
2111 tty_cursor(struct tty *tty, u_int cx, u_int cy)
2112 {
2113  struct tty_term *term = tty->term;
2114  u_int thisx, thisy;
2115  int change;
2116 
2117  if (tty->flags & TTY_BLOCK)
2118  return;
2119 
2120  if (cx > tty->sx - 1)
2121  cx = tty->sx - 1;
2122 
2123  thisx = tty->cx;
2124  thisy = tty->cy;
2125 
2126  /* No change. */
2127  if (cx == thisx && cy == thisy)
2128  return;
2129 
2130  /* Very end of the line, just use absolute movement. */
2131  if (thisx > tty->sx - 1)
2132  goto absolute;
2133 
2134  /* Move to home position (0, 0). */
2135  if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
2137  goto out;
2138  }
2139 
2140  /* Zero on the next line. */
2141  if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower &&
2142  (!tty_use_margin(tty) || tty->rleft == 0)) {
2143  tty_putc(tty, '\r');
2144  tty_putc(tty, '\n');
2145  goto out;
2146  }
2147 
2148  /* Moving column or row. */
2149  if (cy == thisy) {
2150  /*
2151  * Moving column only, row staying the same.
2152  */
2153 
2154  /* To left edge. */
2155  if (cx == 0 && (!tty_use_margin(tty) || tty->rleft == 0)) {
2156  tty_putc(tty, '\r');
2157  goto out;
2158  }
2159 
2160  /* One to the left. */
2161  if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) {
2163  goto out;
2164  }
2165 
2166  /* One to the right. */
2167  if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) {
2169  goto out;
2170  }
2171 
2172  /* Calculate difference. */
2173  change = thisx - cx; /* +ve left, -ve right */
2174 
2175  /*
2176  * Use HPA if change is larger than absolute, otherwise move
2177  * the cursor with CUB/CUF.
2178  */
2179  if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) {
2180  tty_putcode1(tty, TTYC_HPA, cx);
2181  goto out;
2182  } else if (change > 0 &&
2183  tty_term_has(term, TTYC_CUB) &&
2184  !tty_use_margin(tty)) {
2185  if (change == 2 && tty_term_has(term, TTYC_CUB1)) {
2188  goto out;
2189  }
2190  tty_putcode1(tty, TTYC_CUB, change);
2191  goto out;
2192  } else if (change < 0 &&
2193  tty_term_has(term, TTYC_CUF) &&
2194  !tty_use_margin(tty)) {
2195  tty_putcode1(tty, TTYC_CUF, -change);
2196  goto out;
2197  }
2198  } else if (cx == thisx) {
2199  /*
2200  * Moving row only, column staying the same.
2201  */
2202 
2203  /* One above. */
2204  if (thisy != tty->rupper &&
2205  cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) {
2207  goto out;
2208  }
2209 
2210  /* One below. */
2211  if (thisy != tty->rlower &&
2212  cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) {
2214  goto out;
2215  }
2216 
2217  /* Calculate difference. */
2218  change = thisy - cy; /* +ve up, -ve down */
2219 
2220  /*
2221  * Try to use VPA if change is larger than absolute or if this
2222  * change would cross the scroll region, otherwise use CUU/CUD.
2223  */
2224  if ((u_int) abs(change) > cy ||
2225  (change < 0 && cy - change > tty->rlower) ||
2226  (change > 0 && cy - change < tty->rupper)) {
2227  if (tty_term_has(term, TTYC_VPA)) {
2228  tty_putcode1(tty, TTYC_VPA, cy);
2229  goto out;
2230  }
2231  } else if (change > 0 && tty_term_has(term, TTYC_CUU)) {
2232  tty_putcode1(tty, TTYC_CUU, change);
2233  goto out;
2234  } else if (change < 0 && tty_term_has(term, TTYC_CUD)) {
2235  tty_putcode1(tty, TTYC_CUD, -change);
2236  goto out;
2237  }
2238  }
2239 
2240 absolute:
2241  /* Absolute movement. */
2242  tty_putcode2(tty, TTYC_CUP, cy, cx);
2243 
2244 out:
2245  tty->cx = cx;
2246  tty->cy = cy;
2247 }
2248 
2249 void
2250 tty_attributes(struct tty *tty, const struct grid_cell *gc,
2251  const struct grid_cell *defaults, int *palette)
2252 {
2253  struct grid_cell *tc = &tty->cell, gc2;
2254  int changed;
2255 
2256  /* Copy cell and update default colours. */
2257  memcpy(&gc2, gc, sizeof gc2);
2258  if (gc2.fg == 8)
2259  gc2.fg = defaults->fg;
2260  if (gc2.bg == 8)
2261  gc2.bg = defaults->bg;
2262 
2263  /* Ignore cell if it is the same as the last one. */
2264  if (gc2.attr == tty->last_cell.attr &&
2265  gc2.fg == tty->last_cell.fg &&
2266  gc2.bg == tty->last_cell.bg &&
2267  gc2.us == tty->last_cell.us)
2268  return;
2269 
2270  /*
2271  * If no setab, try to use the reverse attribute as a best-effort for a
2272  * non-default background. This is a bit of a hack but it doesn't do
2273  * any serious harm and makes a couple of applications happier.
2274  */
2275  if (!tty_term_has(tty->term, TTYC_SETAB)) {
2276  if (gc2.attr & GRID_ATTR_REVERSE) {
2277  if (gc2.fg != 7 && !COLOUR_DEFAULT(gc2.fg))
2278  gc2.attr &= ~~GRID_ATTR_REVERSE;
2279  } else {
2280  if (gc2.bg != 0 && !COLOUR_DEFAULT(gc2.bg))
2281  gc2.attr |= GRID_ATTR_REVERSE;
2282  }
2283  }
2284 
2285  /* Fix up the colours if necessary. */
2286  tty_check_fg(tty, palette, &gc2);
2287  tty_check_bg(tty, palette, &gc2);
2288  tty_check_us(tty, palette, &gc2);
2289 
2290  /*
2291  * If any bits are being cleared or the underline colour is now default,
2292  * reset everything.
2293  */
2294  if ((tc->attr & ~gc2.attr) || (tc->us != gc2.us && gc2.us == 0))
2295  tty_reset(tty);
2296 
2297  /*
2298  * Set the colours. This may call tty_reset() (so it comes next) and
2299  * may add to (NOT remove) the desired attributes.
2300  */
2301  tty_colours(tty, &gc2);
2302 
2303  /* Filter out attribute bits already set. */
2304  changed = gc2.attr & ~~tc->attr;
2305  tc->attr = gc2.attr;
2306 
2307  /* Set the attributes. */
2308  if (changed & GRID_ATTR_BRIGHT)
2310  if (changed & GRID_ATTR_DIM)
2312  if (changed & GRID_ATTR_ITALICS)
2314  if (changed & GRID_ATTR_ALL_UNDERSCORE) {
2315  if ((changed & GRID_ATTR_UNDERSCORE) ||
2318  else if (changed & GRID_ATTR_UNDERSCORE_2)
2320  else if (changed & GRID_ATTR_UNDERSCORE_3)
2322  else if (changed & GRID_ATTR_UNDERSCORE_4)
2324  else if (changed & GRID_ATTR_UNDERSCORE_5)
2326  }
2327  if (changed & GRID_ATTR_BLINK)
2329  if (changed & GRID_ATTR_REVERSE) {
2330  if (tty_term_has(tty->term, TTYC_REV))
2332  else if (tty_term_has(tty->term, TTYC_SMSO))
2334  }
2335  if (changed & GRID_ATTR_HIDDEN)
2337  if (changed & GRID_ATTR_STRIKETHROUGH)
2339  if (changed & GRID_ATTR_OVERLINE)
2341  if ((changed & GRID_ATTR_CHARSET) && tty_acs_needed(tty))
2343 
2344  memcpy(&tty->last_cell, &gc2, sizeof tty->last_cell);
2345 }
2346 
2347 static void
2348 tty_colours(struct tty *tty, const struct grid_cell *gc)
2349 {
2350  struct grid_cell *tc = &tty->cell;
2351  int have_ax;
2352 
2353  /* No changes? Nothing is necessary. */
2354  if (gc->fg == tc->fg && gc->bg == tc->bg && gc->us == tc->us)
2355  return;
2356 
2357  /*
2358  * Is either the default colour? This is handled specially because the
2359  * best solution might be to reset both colours to default, in which
2360  * case if only one is default need to fall onward to set the other
2361  * colour.
2362  */
2363  if (COLOUR_DEFAULT(gc->fg) || COLOUR_DEFAULT(gc->bg)) {
2364  /*
2365  * If don't have AX but do have op, send sgr0 (op can't
2366  * actually be used because it is sometimes the same as sgr0
2367  * and sometimes isn't). This resets both colours to default.
2368  *
2369  * Otherwise, try to set the default colour only as needed.
2370  */
2371  have_ax = tty_term_flag(tty->term, TTYC_AX);
2372  if (!have_ax && tty_term_has(tty->term, TTYC_OP))
2373  tty_reset(tty);
2374  else {
2375  if (COLOUR_DEFAULT(gc->fg) && !COLOUR_DEFAULT(tc->fg)) {
2376  if (have_ax)
2377  tty_puts(tty, "\033[39m");
2378  else if (tc->fg != 7)
2380  tc->fg = gc->fg;
2381  }
2382  if (COLOUR_DEFAULT(gc->bg) && !COLOUR_DEFAULT(tc->bg)) {
2383  if (have_ax)
2384  tty_puts(tty, "\033[49m");
2385  else if (tc->bg != 0)
2387  tc->bg = gc->bg;
2388  }
2389  }
2390  }
2391 
2392  /* Set the foreground colour. */
2393  if (!COLOUR_DEFAULT(gc->fg) && gc->fg != tc->fg)
2394  tty_colours_fg(tty, gc);
2395 
2396  /*
2397  * Set the background colour. This must come after the foreground as
2398  * tty_colour_fg() can call tty_reset().
2399  */
2400  if (!COLOUR_DEFAULT(gc->bg) && gc->bg != tc->bg)
2401  tty_colours_bg(tty, gc);
2402 
2403  /* Set the underscore color. */
2404  if (gc->us != tc->us)
2405  tty_colours_us(tty, gc);
2406 }
2407 
2408 static void
2409 tty_check_fg(struct tty *tty, int *palette, struct grid_cell *gc)
2410 {
2411  u_char r, g, b;
2412  u_int colours;
2413  int c;
2414 
2415  /*
2416  * Perform substitution if this pane has a palette. If the bright
2417  * attribute is set, use the bright entry in the palette by changing to
2418  * the aixterm colour.
2419  */
2420  if (~gc->flags & GRID_FLAG_NOPALETTE) {
2421  c = gc->fg;
2422  if (c < 8 && gc->attr & GRID_ATTR_BRIGHT)
2423  c += 90;
2424  if ((c = tty_get_palette(palette, c)) != -1)
2425  gc->fg = c;
2426  }
2427 
2428  /* Is this a 24-bit colour? */
2429  if (gc->fg & COLOUR_FLAG_RGB) {
2430  /* Not a 24-bit terminal? Translate to 256-colour palette. */
2431  if (tty->term->flags & TERM_RGBCOLOURS)
2432  return;
2433  colour_split_rgb(gc->fg, &r, &g, &b);
2434  gc->fg = colour_find_rgb(r, g, b);
2435  }
2436 
2437  /* How many colours does this terminal have? */
2438  if (tty->term->flags & TERM_256COLOURS)
2439  colours = 256;
2440  else
2441  colours = tty_term_number(tty->term, TTYC_COLORS);
2442 
2443  /* Is this a 256-colour colour? */
2444  if (gc->fg & COLOUR_FLAG_256) {
2445  /* And not a 256 colour mode? */
2446  if (colours < 256) {
2447  gc->fg = colour_256to16(gc->fg);
2448  if (gc->fg & 8) {
2449  gc->fg &= 7;
2450  if (colours >= 16)
2451  gc->fg += 90;
2452  }
2453  }
2454  return;
2455  }
2456 
2457  /* Is this an aixterm colour? */
2458  if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) {
2459  gc->fg -= 90;
2460  gc->attr |= GRID_ATTR_BRIGHT;
2461  }
2462 }
2463 
2464 static void
2465 tty_check_bg(struct tty *tty, int *palette, struct grid_cell *gc)
2466 {
2467  u_char r, g, b;
2468  u_int colours;
2469  int c;
2470 
2471  /* Perform substitution if this pane has a palette. */
2472  if (~gc->flags & GRID_FLAG_NOPALETTE) {
2473  if ((c = tty_get_palette(palette, gc->bg)) != -1)
2474  gc->bg = c;
2475  }
2476 
2477  /* Is this a 24-bit colour? */
2478  if (gc->bg & COLOUR_FLAG_RGB) {
2479  /* Not a 24-bit terminal? Translate to 256-colour palette. */
2480  if (tty->term->flags & TERM_RGBCOLOURS)
2481  return;
2482  colour_split_rgb(gc->bg, &r, &g, &b);
2483  gc->bg = colour_find_rgb(r, g, b);
2484  }
2485 
2486  /* How many colours does this terminal have? */
2487  if (tty->term->flags & TERM_256COLOURS)
2488  colours = 256;
2489  else
2490  colours = tty_term_number(tty->term, TTYC_COLORS);
2491 
2492  /* Is this a 256-colour colour? */
2493  if (gc->bg & COLOUR_FLAG_256) {
2494  /*
2495  * And not a 256 colour mode? Translate to 16-colour
2496  * palette. Bold background doesn't exist portably, so just
2497  * discard the bold bit if set.
2498  */
2499  if (colours < 256) {
2500  gc->bg = colour_256to16(gc->bg);
2501  if (gc->bg & 8) {
2502  gc->bg &= 7;
2503  if (colours >= 16)
2504  gc->bg += 90;
2505  }
2506  }
2507  return;
2508  }
2509 
2510  /* Is this an aixterm colour? */
2511  if (gc->bg >= 90 && gc->bg <= 97 && colours < 16)
2512  gc->bg -= 90;
2513 }
2514 
2515 static void
2516 tty_check_us(__unused struct tty *tty, int *palette, struct grid_cell *gc)
2517 {
2518  int c;
2519 
2520  /* Perform substitution if this pane has a palette. */
2521  if (~gc->flags & GRID_FLAG_NOPALETTE) {
2522  if ((c = tty_get_palette(palette, gc->us)) != -1)
2523  gc->us = c;
2524  }
2525 
2526  /* Underscore colour is set as RGB so convert a 256 colour to RGB. */
2527  if (gc->us & COLOUR_FLAG_256)
2528  gc->us = colour_256toRGB (gc->us);
2529 }
2530 
2531 static void
2532 tty_colours_fg(struct tty *tty, const struct grid_cell *gc)
2533 {
2534  struct grid_cell *tc = &tty->cell;
2535  char s[32];
2536 
2537  /* Is this a 24-bit or 256-colour colour? */
2538  if (gc->fg & COLOUR_FLAG_RGB || gc->fg & COLOUR_FLAG_256) {
2539  if (tty_try_colour(tty, gc->fg, "38") == 0)
2540  goto save;
2541  /* Should not get here, already converted in tty_check_fg. */
2542  return;
2543  }
2544 
2545  /* Is this an aixterm bright colour? */
2546  if (gc->fg >= 90 && gc->fg <= 97) {
2547  if (tty->term->flags & TERM_256COLOURS) {
2548  xsnprintf(s, sizeof s, "\033[%dm", gc->fg);
2549  tty_puts(tty, s);
2550  } else
2551  tty_putcode1(tty, TTYC_SETAF, gc->fg - 90 + 8);
2552  goto save;
2553  }
2554 
2555  /* Otherwise set the foreground colour. */
2556  tty_putcode1(tty, TTYC_SETAF, gc->fg);
2557 
2558 save:
2559  /* Save the new values in the terminal current cell. */
2560  tc->fg = gc->fg;
2561 }
2562 
2563 static void
2564 tty_colours_bg(struct tty *tty, const struct grid_cell *gc)
2565 {
2566  struct grid_cell *tc = &tty->cell;
2567  char s[32];
2568 
2569  /* Is this a 24-bit or 256-colour colour? */
2570  if (gc->bg & COLOUR_FLAG_RGB || gc->bg & COLOUR_FLAG_256) {
2571  if (tty_try_colour(tty, gc->bg, "48") == 0)
2572  goto save;
2573  /* Should not get here, already converted in tty_check_bg. */
2574  return;
2575  }
2576 
2577  /* Is this an aixterm bright colour? */
2578  if (gc->bg >= 90 && gc->bg <= 97) {
2579  if (tty->term->flags & TERM_256COLOURS) {
2580  xsnprintf(s, sizeof s, "\033[%dm", gc->bg + 10);
2581  tty_puts(tty, s);
2582  } else
2583  tty_putcode1(tty, TTYC_SETAB, gc->bg - 90 + 8);
2584  goto save;
2585  }
2586 
2587  /* Otherwise set the background colour. */
2588  tty_putcode1(tty, TTYC_SETAB, gc->bg);
2589 
2590 save:
2591  /* Save the new values in the terminal current cell. */
2592  tc->bg = gc->bg;
2593 }
2594 
2595 static void
2596 tty_colours_us(struct tty *tty, const struct grid_cell *gc)
2597 {
2598  struct grid_cell *tc = &tty->cell;
2599  u_int c;
2600  u_char r, g, b;
2601 
2602  /* Clear underline colour. */
2603  if (gc->us == 0) {
2605  goto save;
2606  }
2607 
2608  /* Must be an RGB colour - this should never happen. */
2609  if (~gc->us & COLOUR_FLAG_RGB)
2610  return;
2611 
2612  /*
2613  * Setulc and setal follows the ncurses(3) one argument "direct colour"
2614  * capability format. Calculate the colour value.
2615  */
2616  colour_split_rgb(gc->us, &r, &g, &b);
2617  c = (65536 * r) + (256 * g) + b;
2618 
2619  /*
2620  * Write the colour. Only use setal if the RGB flag is set because the
2621  * non-RGB version may be wrong.
2622  */
2625  else if (tty_term_has(tty->term, TTYC_SETAL) &&
2628 
2629 save:
2630  /* Save the new values in the terminal current cell. */
2631  tc->us = gc->us;
2632 }
2633 
2634 static int
2635 tty_try_colour(struct tty *tty, int colour, const char *type)
2636 {
2637  u_char r, g, b;
2638 
2639  if (colour & COLOUR_FLAG_256) {
2640  if (*type == '3' && tty_term_has(tty->term, TTYC_SETAF))
2641  tty_putcode1(tty, TTYC_SETAF, colour & 0xff);
2642  else if (tty_term_has(tty->term, TTYC_SETAB))
2643  tty_putcode1(tty, TTYC_SETAB, colour & 0xff);
2644  return (0);
2645  }
2646 
2647  if (colour & COLOUR_FLAG_RGB) {
2648  colour_split_rgb(colour & 0xffffff, &r, &g, &b);
2649  if (*type == '3' && tty_term_has(tty->term, TTYC_SETRGBF))
2650  tty_putcode3(tty, TTYC_SETRGBF, r, g, b);
2651  else if (tty_term_has(tty->term, TTYC_SETRGBB))
2652  tty_putcode3(tty, TTYC_SETRGBB, r, g, b);
2653  return (0);
2654  }
2655 
2656  return (-1);
2657 }
2658 
2659 static void
2661 {
2662  memcpy(gc, &grid_default_cell, sizeof *gc);
2663  gc->fg = wp->fg;
2664  gc->bg = wp->bg;
2665 }
2666 
2667 void
2669 {
2670  struct options *oo = wp->options;
2671 
2672  memcpy(gc, &grid_default_cell, sizeof *gc);
2673 
2674  if (wp->flags & PANE_STYLECHANGED) {
2675  wp->flags &= ~~PANE_STYLECHANGED;
2676 
2678  style_add(&wp->cached_active_gc, oo, "window-active-style",
2679  NULL);
2681  style_add(&wp->cached_gc, oo, "window-style", NULL);
2682  }
2683 
2684  if (gc->fg == 8) {
2685  if (wp == wp->window->active && wp->cached_active_gc.fg != 8)
2686  gc->fg = wp->cached_active_gc.fg;
2687  else
2688  gc->fg = wp->cached_gc.fg;
2689  }
2690 
2691  if (gc->bg == 8) {
2692  if (wp == wp->window->active && wp->cached_active_gc.bg != 8)
2693  gc->bg = wp->cached_active_gc.bg;
2694  else
2695  gc->bg = wp->cached_gc.bg;
2696  }
2697 }
2698 
2699 static void
2700 tty_default_attributes(struct tty *tty, const struct grid_cell *defaults,
2701  int *palette, u_int bg)
2702 {
2703  struct grid_cell gc;
2704 
2705  memcpy(&gc, &grid_default_cell, sizeof gc);
2706  gc.bg = bg;
2707  tty_attributes(tty, &gc, defaults, palette);
2708 }
void colour_split_rgb(int c, u_char *r, u_char *g, u_char *b)
Definition: colour.c:101
int colour_find_rgb(u_char r, u_char g, u_char b)
Definition: colour.c:58
int colour_256toRGB(int c)
Definition: colour.c:245
int colour_256to16(int c)
Definition: colour.c:319
int b64_ntop(const char *, size_t, char *, size_t)
#define __unused
Definition: compat.h:60
#define ECHOPRT
Definition: compat.h:73
#define IMAXBEL
Definition: compat.h:130
void grid_view_get_cell(struct grid *gd, u_int px, u_int py, struct grid_cell *gc)
Definition: grid-view.c:35
const struct grid_cell grid_default_cell
Definition: grid.c:39
struct grid_line * grid_get_line(struct grid *gd, u_int line)
Definition: grid.c:181
int grid_cells_equal(const struct grid_cell *gc1, const struct grid_cell *gc2)
Definition: grid.c:239
const char * name
Definition: layout-set.c:38
void fatal(const char *msg,...)
Definition: log.c:144
void fatalx(const char *msg,...)
Definition: log.c:159
void log_debug(const char *msg,...)
Definition: log.c:130
const char * options_get_string(struct options *oo, const char *name)
Definition: options.c:686
long long options_get_number(struct options *oo, const char *name)
Definition: options.c:699
void screen_select_cell(struct screen *s, struct grid_cell *dst, const struct grid_cell *src)
Definition: screen.c:510
void server_client_lost(struct client *c)
struct window_pane * server_client_get_pane(struct client *c)
struct clients clients
Definition: server.c:42
u_int status_line_size(struct client *c)
Definition: status.c:223
Definition: tmux.h:1608
char ** term_caps
Definition: tmux.h:1636
u_int pan_ox
Definition: tmux.h:1749
char * term_name
Definition: tmux.h:1633
struct tty tty
Definition: tmux.h:1640
void * pan_window
Definition: tmux.h:1748
char * title
Definition: tmux.h:1630
overlay_check_cb overlay_check
Definition: tmux.h:1752
const char * name
Definition: tmux.h:1609
struct session * session
Definition: tmux.h:1743
size_t discarded
Definition: tmux.h:1643
size_t redraw
Definition: tmux.h:1644
int fd
Definition: tmux.h:1619
u_int term_ncaps
Definition: tmux.h:1637
uint64_t flags
Definition: tmux.h:1703
size_t written
Definition: tmux.h:1642
u_int pan_oy
Definition: tmux.h:1750
int term_features
Definition: tmux.h:1634
u_char flags
Definition: tmux.h:691
int us
Definition: tmux.h:694
int bg
Definition: tmux.h:693
struct utf8_data data
Definition: tmux.h:689
u_short attr
Definition: tmux.h:690
int fg
Definition: tmux.h:692
u_int cellsize
Definition: tmux.h:724
int flags
Definition: tmux.h:730
Definition: tmux.h:734
u_int hsize
Definition: tmux.h:742
Definition: tmux.h:816
u_int cy
Definition: tmux.h:824
int mode
Definition: tmux.h:832
u_int cx
Definition: tmux.h:823
char * ccolour
Definition: tmux.h:827
u_int cstyle
Definition: tmux.h:826
struct grid * grid
Definition: tmux.h:821
struct winlink * curw
Definition: tmux.h:1192
Definition: tmux.h:1375
const struct grid_cell * cell
Definition: tmux.h:1382
u_int rxoff
Definition: tmux.h:1402
int * palette
Definition: tmux.h:1412
u_int yoff
Definition: tmux.h:1401
u_int wsy
Definition: tmux.h:1419
struct screen * s
Definition: tmux.h:1376
tty_ctx_set_client_cb set_client_cb
Definition: tmux.h:1379
u_int wox
Definition: tmux.h:1416
u_int xoff
Definition: tmux.h:1400
int wrapped
Definition: tmux.h:1383
u_int woy
Definition: tmux.h:1417
u_int sx
Definition: tmux.h:1404
tty_ctx_redraw_cb redraw_cb
Definition: tmux.h:1378
u_int num
Definition: tmux.h:1385
u_int ocx
Definition: tmux.h:1393
u_int ryoff
Definition: tmux.h:1403
u_int orupper
Definition: tmux.h:1396
struct grid_cell defaults
Definition: tmux.h:1411
u_int sy
Definition: tmux.h:1405
u_int orlower
Definition: tmux.h:1397
u_int wsx
Definition: tmux.h:1418
int bigger
Definition: tmux.h:1415
u_int ocy
Definition: tmux.h:1394
u_int bg
Definition: tmux.h:1408
void * ptr
Definition: tmux.h:1386
int flags
Definition: tmux.h:1298
Definition: tmux.h:1304
u_int sx
Definition: tmux.h:1308
char * ccolour
Definition: tmux.h:1316
u_int cy
Definition: tmux.h:1314
struct event event_out
Definition: tmux.h:1334
void(* mouse_drag_release)(struct client *, struct mouse_event *)
Definition: tmux.h:1365
int mouse_drag_flag
Definition: tmux.h:1362
size_t discarded
Definition: tmux.h:1337
struct grid_cell cell
Definition: tmux.h:1341
struct tty_term * term
Definition: tmux.h:1357
u_int ypixel
Definition: tmux.h:1311
u_int rright
Definition: tmux.h:1330
u_int cstyle
Definition: tmux.h:1315
struct event event_in
Definition: tmux.h:1332
struct termios tio
Definition: tmux.h:1339
u_int osx
Definition: tmux.h:1321
u_int sy
Definition: tmux.h:1309
u_int rleft
Definition: tmux.h:1329
u_int osy
Definition: tmux.h:1322
u_int xpixel
Definition: tmux.h:1310
int mode
Definition: tmux.h:1324
struct event timer
Definition: tmux.h:1336
u_int cx
Definition: tmux.h:1313
struct event start_timer
Definition: tmux.h:1306
int flags
Definition: tmux.h:1355
int oflag
Definition: tmux.h:1318
u_int rupper
Definition: tmux.h:1327
struct grid_cell last_cell
Definition: tmux.h:1342
struct event key_timer
Definition: tmux.h:1368
void(* mouse_drag_update)(struct client *, struct mouse_event *)
Definition: tmux.h:1363
struct evbuffer * in
Definition: tmux.h:1333
u_int oox
Definition: tmux.h:1319
struct client * client
Definition: tmux.h:1305
struct evbuffer * out
Definition: tmux.h:1335
u_int ooy
Definition: tmux.h:1320
u_int rlower
Definition: tmux.h:1326
u_char data[21]
Definition: tmux.h:629
u_char size
Definition: tmux.h:632
u_char width
Definition: tmux.h:634
struct screen * screen
Definition: tmux.h:1020
u_int xoff
Definition: tmux.h:971
int fg
Definition: tmux.h:974
int bg
Definition: tmux.h:975
u_int yoff
Definition: tmux.h:972
int flags
Definition: tmux.h:977
struct grid_cell cached_active_gc
Definition: tmux.h:1013
u_int sy
Definition: tmux.h:969
struct window * window
Definition: tmux.h:962
struct options * options
Definition: tmux.h:963
u_int sx
Definition: tmux.h:968
struct grid_cell cached_gc
Definition: tmux.h:1012
Definition: tmux.h:1041
u_int sx
Definition: tmux.h:1063
struct window_pane * active
Definition: tmux.h:1054
u_int sy
Definition: tmux.h:1064
void style_add(struct grid_cell *gc, struct options *oo, const char *name, struct format_tree *ft)
Definition: style.c:274
void setblocking(int fd, int state)
Definition: tmux.c:233
struct options * global_options
Definition: tmux.c:36
#define TTY_SYNCING
Definition: tmux.h:1354
int tty_apply_features(struct tty_term *, int)
Definition: tty-features.c:311
tty_code_code
Definition: tmux.h:274
@ TTYC_OL
Definition: tmux.h:468
@ TTYC_CLMG
Definition: tmux.h:285
@ TTYC_ENACS
Definition: tmux.h:316
@ TTYC_CMG
Definition: tmux.h:286
@ TTYC_DSMG
Definition: tmux.h:310
@ TTYC_KMOUS
Definition: tmux.h:439
@ TTYC_ENMG
Definition: tmux.h:320
@ TTYC_SMOL
Definition: tmux.h:490
@ TTYC_RMACS
Definition: tmux.h:475
@ TTYC_IL1
Definition: tmux.h:327
@ TTYC_REV
Definition: tmux.h:471
@ TTYC_SMACS
Definition: tmux.h:487
@ TTYC_INVIS
Definition: tmux.h:329
@ TTYC_CUD1
Definition: tmux.h:295
@ TTYC_CUP
Definition: tmux.h:298
@ TTYC_EL
Definition: tmux.h:314
@ TTYC_SITM
Definition: tmux.h:486
@ TTYC_CUU1
Definition: tmux.h:300
@ TTYC_CIVIS
Definition: tmux.h:283
@ TTYC_CUF
Definition: tmux.h:296
@ TTYC_OP
Definition: tmux.h:469
@ TTYC_CS
Definition: tmux.h:290
@ TTYC_ENBP
Definition: tmux.h:317
@ TTYC_SE
Definition: tmux.h:478
@ TTYC_SETAB
Definition: tmux.h:479
@ TTYC_CUB
Definition: tmux.h:292
@ TTYC_DCH
Definition: tmux.h:302
@ TTYC_DSFCS
Definition: tmux.h:309
@ TTYC_SETAF
Definition: tmux.h:480
@ TTYC_CR
Definition: tmux.h:289
@ TTYC_SYNC
Definition: tmux.h:496
@ TTYC_DIM
Definition: tmux.h:304
@ TTYC_FSL
Definition: tmux.h:321
@ TTYC_ED
Definition: tmux.h:313
@ TTYC_CVVIS
Definition: tmux.h:301
@ TTYC_CUF1
Definition: tmux.h:297
@ TTYC_CUD
Definition: tmux.h:294
@ TTYC_AX
Definition: tmux.h:277
@ TTYC_SMSO
Definition: tmux.h:491
@ TTYC_BOLD
Definition: tmux.h:282
@ TTYC_TSL
Definition: tmux.h:498
@ TTYC_SMKX
Definition: tmux.h:489
@ TTYC_SMCUP
Definition: tmux.h:488
@ TTYC_SETRGBF
Definition: tmux.h:483
@ TTYC_RIN
Definition: tmux.h:474
@ TTYC_ENEKS
Definition: tmux.h:318
@ TTYC_VPA
Definition: tmux.h:500
@ TTYC_SETULC
Definition: tmux.h:484
@ TTYC_HPA
Definition: tmux.h:323
@ TTYC_SMXX
Definition: tmux.h:494
@ TTYC_DSBP
Definition: tmux.h:307
@ TTYC_RMCUP
Definition: tmux.h:476
@ TTYC_ICH
Definition: tmux.h:324
@ TTYC_SETAL
Definition: tmux.h:481
@ TTYC_MS
Definition: tmux.h:467
@ TTYC_EL1
Definition: tmux.h:315
@ TTYC_HOME
Definition: tmux.h:322
@ TTYC_BCE
Definition: tmux.h:278
@ TTYC_DL
Definition: tmux.h:305
@ TTYC_CSR
Definition: tmux.h:291
@ TTYC_SGR0
Definition: tmux.h:485
@ TTYC_DL1
Definition: tmux.h:306
@ TTYC_IL
Definition: tmux.h:326
@ TTYC_DSEKS
Definition: tmux.h:308
@ TTYC_INDN
Definition: tmux.h:328
@ TTYC_DCH1
Definition: tmux.h:303
@ TTYC_RGB
Definition: tmux.h:472
@ TTYC_CNORM
Definition: tmux.h:287
@ TTYC_ENFCS
Definition: tmux.h:319
@ TTYC_CUB1
Definition: tmux.h:293
@ TTYC_SMULX
Definition: tmux.h:493
@ TTYC_SETRGBB
Definition: tmux.h:482
@ TTYC_CLEAR
Definition: tmux.h:284
@ TTYC_CUU
Definition: tmux.h:299
@ TTYC_BLINK
Definition: tmux.h:281
@ TTYC_ICH1
Definition: tmux.h:325
@ TTYC_RI
Definition: tmux.h:473
@ TTYC_RMKX
Definition: tmux.h:477
@ TTYC_COLORS
Definition: tmux.h:288
@ TTYC_ECH
Definition: tmux.h:312
@ TTYC_SMUL
Definition: tmux.h:492
@ TTYC_SS
Definition: tmux.h:495
#define TTY_STARTED
Definition: tmux.h:1348
int tty_term_number(struct tty_term *, enum tty_code_code)
Definition: tty-term.c:794
#define GRID_ATTR_UNDERSCORE_5
Definition: tmux.h:662
#define TTY_OPENED
Definition: tmux.h:1349
#define CLIENT_UTF8
Definition: tmux.h:1670
#define GRID_ATTR_ALL_UNDERSCORE
Definition: tmux.h:666
#define TERM_RGBCOLOURS
Definition: tmux.h:1296
#define ALL_MOUSE_MODES
Definition: tmux.h:616
#define GRID_FLAG_CLEARED
Definition: tmux.h:680
int tty_term_flag(struct tty_term *, enum tty_code_code)
Definition: tty-term.c:804
#define MODE_BRACKETPASTE
Definition: tmux.h:608
#define GRID_FLAG_NOPALETTE
Definition: tmux.h:679
const char * tty_term_string1(struct tty_term *, enum tty_code_code, int)
Definition: tty-term.c:762
#define GRID_ATTR_CHARSET
Definition: tmux.h:657
#define GRID_ATTR_BLINK
Definition: tmux.h:653
#define GRID_ATTR_STRIKETHROUGH
Definition: tmux.h:658
const char * tty_acs_get(struct tty *, u_char)
Definition: tty-acs.c:159
int tty_acs_reverse_get(struct tty *, const char *, size_t)
Definition: tty-acs.c:180
#define COLOUR_DEFAULT(c)
Definition: tmux.h:647
int tty_term_has(struct tty_term *, enum tty_code_code)
Definition: tty-term.c:746
const char * tty_term_ptr2(struct tty_term *, enum tty_code_code, const void *, const void *)
Definition: tty-term.c:787
#define TTY_HAVEDA
Definition: tmux.h:1352
const char * tty_term_string(struct tty_term *, enum tty_code_code)
Definition: tty-term.c:752
void tty_keys_build(struct tty *)
Definition: tty-keys.c:476
#define PANE_STYLECHANGED
Definition: tmux.h:990
#define TTY_BLOCK
Definition: tmux.h:1351
#define TERM_NOAM
Definition: tmux.h:1293
#define GRID_ATTR_DIM
Definition: tmux.h:651
#define TERM_DECFRA
Definition: tmux.h:1295
#define GRID_ATTR_UNDERSCORE_2
Definition: tmux.h:659
void tty_keys_free(struct tty *)
Definition: tty-keys.c:533
#define GRID_ATTR_UNDERSCORE
Definition: tmux.h:652
int tty_keys_next(struct tty *)
Definition: tty-keys.c:650
void utf8_set(struct utf8_data *, u_char)
Definition: utf8.c:193
struct tty_term * tty_term_create(struct tty *, char *, char **, u_int, int *, char **)
Definition: tty-term.c:516
#define TTY_NOCURSOR
Definition: tmux.h:1344
#define MODE_MOUSE_SGR
Definition: tmux.h:607
const char * tty_term_string3(struct tty_term *, enum tty_code_code, int, int, int)
Definition: tty-term.c:774
#define GRID_ATTR_BRIGHT
Definition: tmux.h:650
#define MODE_MOUSE_ALL
Definition: tmux.h:610
#define MODE_CURSOR
Definition: tmux.h:598
#define CLIENT_ALLREDRAWFLAGS
Definition: tmux.h:1688
#define CLIENT_REDRAWWINDOW
Definition: tmux.h:1657
#define screen_size_x(s)
Definition: tmux.h:881
#define CLIENT_REDRAWSTATUS
Definition: tmux.h:1658
const char * tty_term_string2(struct tty_term *, enum tty_code_code, int, int)
Definition: tty-term.c:768
#define MODE_MOUSE_STANDARD
Definition: tmux.h:603
void tty_term_free(struct tty_term *)
Definition: tty-term.c:646
#define GRID_FLAG_PADDING
Definition: tmux.h:676
#define TERM_VT100LIKE
Definition: tmux.h:1297
#define GRID_ATTR_REVERSE
Definition: tmux.h:654
#define COLOUR_FLAG_RGB
Definition: tmux.h:644
#define GRID_ATTR_HIDDEN
Definition: tmux.h:655
const char * tty_term_ptr1(struct tty_term *, enum tty_code_code, const void *)
Definition: tty-term.c:781
#define GRID_FLAG_SELECTED
Definition: tmux.h:678
void tty_term_apply_overrides(struct tty_term *)
Definition: tty-term.c:433
#define ALL_MODES
Definition: tmux.h:615
#define GRID_ATTR_UNDERSCORE_3
Definition: tmux.h:660
#define UTF8_SIZE
Definition: tmux.h:627
#define MODE_MOUSE_BUTTON
Definition: tmux.h:604
#define GRID_LINE_WRAPPED
Definition: tmux.h:683
#define GRID_ATTR_UNDERSCORE_4
Definition: tmux.h:661
#define MODE_BLINKING
Definition: tmux.h:605
#define TTY_TIMER
Definition: tmux.h:1346
#define TTY_FREEZE
Definition: tmux.h:1345
#define GRID_ATTR_ITALICS
Definition: tmux.h:656
#define GRID_ATTR_OVERLINE
Definition: tmux.h:663
int tty_acs_needed(struct tty *)
Definition: tty-acs.c:133
#define CLIENT_SUSPENDED
Definition: tmux.h:1660
#define TERM_256COLOURS
Definition: tmux.h:1292
#define CLIENT_TERMINAL
Definition: tmux.h:1654
#define COLOUR_FLAG_256
Definition: tmux.h:643
#define TTY_HAVEXDA
Definition: tmux.h:1353
static int tty_get_palette(int *palette, int c)
Definition: tty.c:896
static void tty_check_us(struct tty *, int *, struct grid_cell *)
Definition: tty.c:2516
static void tty_add(struct tty *tty, const char *buf, size_t len)
Definition: tty.c:536
static void tty_repeat_space(struct tty *, u_int)
Definition: tty.c:753
void tty_putcode3(struct tty *tty, enum tty_code_code code, int a, int b, int c)
Definition: tty.c:513
static void tty_check_bg(struct tty *, int *, struct grid_cell *)
Definition: tty.c:2465
void tty_free(struct tty *tty)
Definition: tty.c:445
void tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1547
void tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1603
static void tty_draw_pane(struct tty *, const struct tty_ctx *, u_int)
Definition: tty.c:1221
static void tty_clear_pane_line(struct tty *tty, const struct tty_ctx *ctx, u_int py, u_int px, u_int nx, u_int bg)
Definition: tty.c:1063
static void tty_colours_fg(struct tty *, const struct grid_cell *)
Definition: tty.c:2532
void tty_raw(struct tty *tty, const char *s)
Definition: tty.c:470
void tty_update_client_offset(struct client *c)
Definition: tty.c:868
static void tty_set_italics(struct tty *)
Definition: tty.c:620
static int tty_block_maybe(struct tty *tty)
Definition: tty.c:197
void tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1917
static int tty_clamp_area(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py, u_int nx, u_int ny, u_int *i, u_int *j, u_int *x, u_int *y, u_int *rx, u_int *ry)
Definition: tty.c:1077
#define tty_use_margin(tty)
Definition: tty.c:71
static void tty_clear_area(struct tty *tty, const struct grid_cell *defaults, u_int py, u_int ny, u_int px, u_int nx, u_int bg)
Definition: tty.c:1139
void tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1501
static void tty_window_default_style(struct grid_cell *gc, struct window_pane *wp)
Definition: tty.c:2660
static void tty_clear_pane_area(struct tty *tty, const struct tty_ctx *ctx, u_int py, u_int ny, u_int px, u_int nx, u_int bg)
Definition: tty.c:1211
void tty_stop_tty(struct tty *tty)
Definition: tty.c:362
void tty_cmd_scrolldown(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1726
#define TTY_BLOCK_STOP(tty)
Definition: tty.c:78
void tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1891
#define tty_full_width(tty, ctx)
Definition: tty.c:73
void tty_send_requests(struct tty *tty)
Definition: tty.c:347
void tty_sync_start(struct tty *tty)
Definition: tty.c:1438
static void tty_check_fg(struct tty *, int *, struct grid_cell *)
Definition: tty.c:2409
static int tty_check_overlay(struct tty *tty, u_int px, u_int py)
Definition: tty.c:1271
void tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1805
void tty_create_log(void)
Definition: tty.c:81
void tty_putc(struct tty *tty, u_char ch)
Definition: tty.c:563
int tty_window_offset(struct tty *tty, u_int *ox, u_int *oy, u_int *sx, u_int *sy)
Definition: tty.c:780
void tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a)
Definition: tty.c:521
static int tty_large_region(struct tty *, const struct tty_ctx *)
Definition: tty.c:921
void tty_write(void(*cmdfn)(struct tty *, const struct tty_ctx *), struct tty_ctx *ctx)
Definition: tty.c:1480
static void tty_timer_callback(int fd, short events, void *data)
Definition: tty.c:176
static int tty_clamp_line(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py, u_int nx, u_int *i, u_int *x, u_int *rx, u_int *ry)
Definition: tty.c:983
static int tty_try_colour(struct tty *, int, const char *)
Definition: tty.c:2635
void tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1845
void tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1539
void tty_set_title(struct tty *tty, const char *title)
Definition: tty.c:635
void tty_putn(struct tty *tty, const void *buf, size_t len, u_int width)
Definition: tty.c:601
void tty_putcode(struct tty *tty, enum tty_code_code code)
Definition: tty.c:491
void tty_puts(struct tty *tty, const char *s)
Definition: tty.c:556
static void tty_read_callback(int fd, short events, void *data)
Definition: tty.c:151
void tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1823
static void tty_emulate_repeat(struct tty *, enum tty_code_code, enum tty_code_code, u_int)
Definition: tty.c:741
static void tty_cursor_pane_unless_wrap(struct tty *, const struct tty_ctx *, u_int, u_int)
Definition: tty.c:2087
void tty_cell(struct tty *tty, const struct grid_cell *gc, const struct grid_cell *defaults, int *palette)
Definition: tty.c:1930
void tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
Definition: tty.c:497
static void tty_default_attributes(struct tty *, const struct grid_cell *, int *, u_int)
Definition: tty.c:2700
static void tty_force_cursor_colour(struct tty *, const char *)
Definition: tty.c:647
void tty_cursor(struct tty *tty, u_int cx, u_int cy)
Definition: tty.c:2111
int tty_open(struct tty *tty, char **cause)
Definition: tty.c:248
#define TTY_BLOCK_START(tty)
Definition: tty.c:77
static void tty_margin_pane(struct tty *, const struct tty_ctx *)
Definition: tty.c:2055
void tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1651
static int tty_log_fd
Definition: tty.c:35
void tty_update_features(struct tty *tty)
Definition: tty.c:452
void tty_margin_off(struct tty *tty)
Definition: tty.c:2048
void tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1621
void tty_attributes(struct tty *tty, const struct grid_cell *gc, const struct grid_cell *defaults, int *palette)
Definition: tty.c:2250
static void tty_region_pane(struct tty *, const struct tty_ctx *, u_int, u_int)
Definition: tty.c:2010
void tty_sync_end(struct tty *tty)
Definition: tty.c:1453
static const struct grid_cell * tty_check_codeset(struct tty *tty, const struct grid_cell *gc)
Definition: tty.c:1240
static void tty_margin(struct tty *, u_int, u_int)
Definition: tty.c:2063
void tty_cmd_cells(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1862
static void tty_region(struct tty *, u_int, u_int)
Definition: tty.c:2019
static int tty_fake_bce(const struct tty *, const struct grid_cell *, u_int)
Definition: tty.c:931
void tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
Definition: tty.c:505
void tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1520
static void tty_write_callback(int fd, short events, void *data)
Definition: tty.c:221
static int tty_window_offset1(struct tty *tty, u_int *ox, u_int *oy, u_int *sx, u_int *sy)
Definition: tty.c:792
void tty_cmd_scrollup(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1690
void tty_update_mode(struct tty *tty, int mode, struct screen *s)
Definition: tty.c:658
static int tty_client_ready(struct client *)
Definition: tty.c:1468
void tty_reset(struct tty *tty)
Definition: tty.c:1963
void tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1571
void tty_set_size(struct tty *tty, u_int sx, u_int sy, u_int xpixel, u_int ypixel)
Definition: tty.c:142
void tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1613
static void tty_clear_line(struct tty *tty, const struct grid_cell *defaults, u_int py, u_int px, u_int nx, u_int bg)
Definition: tty.c:1021
static void tty_colours_bg(struct tty *, const struct grid_cell *)
Definition: tty.c:2564
#define TTY_BLOCK_INTERVAL
Definition: tty.c:76
static void tty_colours_us(struct tty *, const struct grid_cell *)
Definition: tty.c:2596
int tty_window_bigger(struct tty *tty)
Definition: tty.c:770
void tty_close(struct tty *tty)
Definition: tty.c:425
void tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1595
static void tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int, u_int)
Definition: tty.c:2104
static void tty_redraw_region(struct tty *, const struct tty_ctx *)
Definition: tty.c:946
void tty_resize(struct tty *tty)
Definition: tty.c:110
void tty_default_colours(struct grid_cell *gc, struct window_pane *wp)
Definition: tty.c:2668
void tty_region_off(struct tty *tty)
Definition: tty.c:2003
void tty_draw_line(struct tty *tty, struct screen *s, u_int px, u_int py, u_int nx, u_int atx, u_int aty, const struct grid_cell *defaults, int *palette)
Definition: tty.c:1281
void tty_cmd_syncstart(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1924
int tty_init(struct tty *tty, struct client *c)
Definition: tty.c:93
void tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1757
static int tty_is_visible(struct tty *tty, const struct tty_ctx *ctx, u_int px, u_int py, u_int nx, u_int ny)
Definition: tty.c:967
static void tty_colours(struct tty *, const struct grid_cell *)
Definition: tty.c:2348
void tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
Definition: tty.c:1781
void tty_update_window_offset(struct window *w)
Definition: tty.c:856
void tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a, const void *b)
Definition: tty.c:528
static void tty_invalidate(struct tty *)
Definition: tty.c:1977
static void tty_start_timer_callback(int fd, short events, void *data)
Definition: tty.c:283
void tty_start_tty(struct tty *tty)
Definition: tty.c:295
void tty_set_selection(struct tty *tty, const char *buf, size_t len)
Definition: tty.c:1897
void * xmalloc(size_t size)
Definition: xmalloc.c:27
int xsnprintf(char *str, size_t len, const char *fmt,...)
Definition: xmalloc.c:135
char * xstrdup(const char *str)
Definition: xmalloc.c:89