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Discard mouse sequences that have the right form but actually are
[tmux-openbsd.git] / window.c
blob8f650a9607ba3e2dd54df79a823a6f74f54ba228
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 <ctype.h>
23 #include <errno.h>
24 #include <fcntl.h>
25 #include <fnmatch.h>
26 #include <regex.h>
27 #include <signal.h>
28 #include <stdint.h>
29 #include <stdlib.h>
30 #include <string.h>
31 #include <time.h>
32 #include <unistd.h>
33 #include <util.h>
34 #include <vis.h>
35
36 #include "tmux.h"
37
38 /*
39 * Each window is attached to a number of panes, each of which is a pty. This
40 * file contains code to handle them.
41 *
42 * A pane has two buffers attached, these are filled and emptied by the main
43 * server poll loop. Output data is received from pty's in screen format,
44 * translated and returned as a series of escape sequences and strings via
45 * input_parse (in input.c). Input data is received as key codes and written
46 * directly via input_key.
47 *
48 * Each pane also has a "virtual" screen (screen.c) which contains the current
49 * state and is redisplayed when the window is reattached to a client.
50 *
51 * Windows are stored directly on a global array and wrapped in any number of
52 * winlink structs to be linked onto local session RB trees. A reference count
53 * is maintained and a window removed from the global list and destroyed when
54 * it reaches zero.
55 */
56
57 /* Global window list. */
58 struct windows windows;
59
60 /* Global panes tree. */
61 struct window_pane_tree all_window_panes;
62 static u_int next_window_pane_id;
63 static u_int next_window_id;
64 static u_int next_active_point;
65
66 struct window_pane_input_data {
67 struct cmdq_item *item;
68 u_int wp;
69 struct client_file *file;
70 };
71
72 static struct window_pane *window_pane_create(struct window *, u_int, u_int,
73 u_int);
74 static void window_pane_destroy(struct window_pane *);
75
76 RB_GENERATE(windows, window, entry, window_cmp);
77 RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
78 RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
79
80 int
81 window_cmp(struct window *w1, struct window *w2)
82 {
83 return (w1->id - w2->id);
84 }
85
86 int
87 winlink_cmp(struct winlink *wl1, struct winlink *wl2)
88 {
89 return (wl1->idx - wl2->idx);
90 }
91
92 int
93 window_pane_cmp(struct window_pane *wp1, struct window_pane *wp2)
94 {
95 return (wp1->id - wp2->id);
96 }
97
98 struct winlink *
99 winlink_find_by_window(struct winlinks *wwl, struct window *w)
100 {
101 struct winlink *wl;
102
103 RB_FOREACH(wl, winlinks, wwl) {
104 if (wl->window == w)
105 return (wl);
106 }
107
108 return (NULL);
109 }
110
111 struct winlink *
112 winlink_find_by_index(struct winlinks *wwl, int idx)
113 {
114 struct winlink wl;
115
116 if (idx < 0)
117 fatalx("bad index");
118
119 wl.idx = idx;
120 return (RB_FIND(winlinks, wwl, &wl));
121 }
122
123 struct winlink *
124 winlink_find_by_window_id(struct winlinks *wwl, u_int id)
125 {
126 struct winlink *wl;
127
128 RB_FOREACH(wl, winlinks, wwl) {
129 if (wl->window->id == id)
130 return (wl);
131 }
132 return (NULL);
133 }
134
135 static int
136 winlink_next_index(struct winlinks *wwl, int idx)
137 {
138 int i;
139
140 i = idx;
141 do {
142 if (winlink_find_by_index(wwl, i) == NULL)
143 return (i);
144 if (i == INT_MAX)
145 i = 0;
146 else
147 i++;
148 } while (i != idx);
149 return (-1);
150 }
151
152 u_int
153 winlink_count(struct winlinks *wwl)
154 {
155 struct winlink *wl;
156 u_int n;
157
158 n = 0;
159 RB_FOREACH(wl, winlinks, wwl)
160 n++;
161
162 return (n);
163 }
164
165 struct winlink *
166 winlink_add(struct winlinks *wwl, int idx)
167 {
168 struct winlink *wl;
169
170 if (idx < 0) {
171 if ((idx = winlink_next_index(wwl, -idx - 1)) == -1)
172 return (NULL);
173 } else if (winlink_find_by_index(wwl, idx) != NULL)
174 return (NULL);
175
176 wl = xcalloc(1, sizeof *wl);
177 wl->idx = idx;
178 RB_INSERT(winlinks, wwl, wl);
179
180 return (wl);
181 }
182
183 void
184 winlink_set_window(struct winlink *wl, struct window *w)
185 {
186 if (wl->window != NULL) {
187 TAILQ_REMOVE(&wl->window->winlinks, wl, wentry);
188 window_remove_ref(wl->window, __func__);
189 }
190 TAILQ_INSERT_TAIL(&w->winlinks, wl, wentry);
191 wl->window = w;
192 window_add_ref(w, __func__);
193 }
194
195 void
196 winlink_remove(struct winlinks *wwl, struct winlink *wl)
197 {
198 struct window *w = wl->window;
199
200 if (w != NULL) {
201 TAILQ_REMOVE(&w->winlinks, wl, wentry);
202 window_remove_ref(w, __func__);
203 }
204
205 RB_REMOVE(winlinks, wwl, wl);
206 free(wl);
207 }
208
209 struct winlink *
210 winlink_next(struct winlink *wl)
211 {
212 return (RB_NEXT(winlinks, wwl, wl));
213 }
214
215 struct winlink *
216 winlink_previous(struct winlink *wl)
217 {
218 return (RB_PREV(winlinks, wwl, wl));
219 }
220
221 struct winlink *
222 winlink_next_by_number(struct winlink *wl, struct session *s, int n)
223 {
224 for (; n > 0; n--) {
225 if ((wl = RB_NEXT(winlinks, wwl, wl)) == NULL)
226 wl = RB_MIN(winlinks, &s->windows);
227 }
228
229 return (wl);
230 }
231
232 struct winlink *
233 winlink_previous_by_number(struct winlink *wl, struct session *s, int n)
234 {
235 for (; n > 0; n--) {
236 if ((wl = RB_PREV(winlinks, wwl, wl)) == NULL)
237 wl = RB_MAX(winlinks, &s->windows);
238 }
239
240 return (wl);
241 }
242
243 void
244 winlink_stack_push(struct winlink_stack *stack, struct winlink *wl)
245 {
246 if (wl == NULL)
247 return;
248
249 winlink_stack_remove(stack, wl);
250 TAILQ_INSERT_HEAD(stack, wl, sentry);
251 }
252
253 void
254 winlink_stack_remove(struct winlink_stack *stack, struct winlink *wl)
255 {
256 struct winlink *wl2;
257
258 if (wl == NULL)
259 return;
260
261 TAILQ_FOREACH(wl2, stack, sentry) {
262 if (wl2 == wl) {
263 TAILQ_REMOVE(stack, wl, sentry);
264 return;
265 }
266 }
267 }
268
269 struct window *
270 window_find_by_id_str(const char *s)
271 {
272 const char *errstr;
273 u_int id;
274
275 if (*s != '@')
276 return (NULL);
277
278 id = strtonum(s + 1, 0, UINT_MAX, &errstr);
279 if (errstr != NULL)
280 return (NULL);
281 return (window_find_by_id(id));
282 }
283
284 struct window *
285 window_find_by_id(u_int id)
286 {
287 struct window w;
288
289 w.id = id;
290 return (RB_FIND(windows, &windows, &w));
291 }
292
293 void
294 window_update_activity(struct window *w)
295 {
296 gettimeofday(&w->activity_time, NULL);
297 alerts_queue(w, WINDOW_ACTIVITY);
298 }
299
300 struct window *
301 window_create(u_int sx, u_int sy, u_int xpixel, u_int ypixel)
302 {
303 struct window *w;
304
305 if (xpixel == 0)
306 xpixel = DEFAULT_XPIXEL;
307 if (ypixel == 0)
308 ypixel = DEFAULT_YPIXEL;
309
310 w = xcalloc(1, sizeof *w);
311 w->name = xstrdup("");
312 w->flags = 0;
313
314 TAILQ_INIT(&w->panes);
315 w->active = NULL;
316
317 w->lastlayout = -1;
318 w->layout_root = NULL;
319
320 w->sx = sx;
321 w->sy = sy;
322 w->manual_sx = sx;
323 w->manual_sy = sy;
324 w->xpixel = xpixel;
325 w->ypixel = ypixel;
326
327 w->options = options_create(global_w_options);
328
329 w->references = 0;
330 TAILQ_INIT(&w->winlinks);
331
332 w->id = next_window_id++;
333 RB_INSERT(windows, &windows, w);
334
335 window_set_fill_character(w);
336 window_update_activity(w);
337
338 log_debug("%s: @%u create %ux%u (%ux%u)", __func__, w->id, sx, sy,
339 w->xpixel, w->ypixel);
340 return (w);
341 }
342
343 static void
344 window_destroy(struct window *w)
345 {
346 log_debug("window @%u destroyed (%d references)", w->id, w->references);
347
348 RB_REMOVE(windows, &windows, w);
349
350 if (w->layout_root != NULL)
351 layout_free_cell(w->layout_root);
352 if (w->saved_layout_root != NULL)
353 layout_free_cell(w->saved_layout_root);
354 free(w->old_layout);
355
356 window_destroy_panes(w);
357
358 if (event_initialized(&w->name_event))
359 evtimer_del(&w->name_event);
360
361 if (event_initialized(&w->alerts_timer))
362 evtimer_del(&w->alerts_timer);
363 if (event_initialized(&w->offset_timer))
364 event_del(&w->offset_timer);
365
366 options_free(w->options);
367 free(w->fill_character);
368
369 free(w->name);
370 free(w);
371 }
372
373 int
374 window_pane_destroy_ready(struct window_pane *wp)
375 {
376 int n;
377
378 if (wp->pipe_fd != -1) {
379 if (EVBUFFER_LENGTH(wp->pipe_event->output) != 0)
380 return (0);
381 if (ioctl(wp->fd, FIONREAD, &n) != -1 && n > 0)
382 return (0);
383 }
384
385 if (~wp->flags & PANE_EXITED)
386 return (0);
387 return (1);
388 }
389
390 void
391 window_add_ref(struct window *w, const char *from)
392 {
393 w->references++;
394 log_debug("%s: @%u %s, now %d", __func__, w->id, from, w->references);
395 }
396
397 void
398 window_remove_ref(struct window *w, const char *from)
399 {
400 w->references--;
401 log_debug("%s: @%u %s, now %d", __func__, w->id, from, w->references);
402
403 if (w->references == 0)
404 window_destroy(w);
405 }
406
407 void
408 window_set_name(struct window *w, const char *new_name)
409 {
410 free(w->name);
411 utf8_stravis(&w->name, new_name, VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL);
412 notify_window("window-renamed", w);
413 }
414
415 void
416 window_resize(struct window *w, u_int sx, u_int sy, int xpixel, int ypixel)
417 {
418 if (xpixel == 0)
419 xpixel = DEFAULT_XPIXEL;
420 if (ypixel == 0)
421 ypixel = DEFAULT_YPIXEL;
422
423 log_debug("%s: @%u resize %ux%u (%ux%u)", __func__, w->id, sx, sy,
424 xpixel == -1 ? w->xpixel : (u_int)xpixel,
425 ypixel == -1 ? w->ypixel : (u_int)ypixel);
426 w->sx = sx;
427 w->sy = sy;
428 if (xpixel != -1)
429 w->xpixel = xpixel;
430 if (ypixel != -1)
431 w->ypixel = ypixel;
432 }
433
434 void
435 window_pane_send_resize(struct window_pane *wp, u_int sx, u_int sy)
436 {
437 struct window *w = wp->window;
438 struct winsize ws;
439
440 if (wp->fd == -1)
441 return;
442
443 log_debug("%s: %%%u resize to %u,%u", __func__, wp->id, sx, sy);
444
445 memset(&ws, 0, sizeof ws);
446 ws.ws_col = sx;
447 ws.ws_row = sy;
448 ws.ws_xpixel = w->xpixel * ws.ws_col;
449 ws.ws_ypixel = w->ypixel * ws.ws_row;
450 if (ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
451 fatal("ioctl failed");
452 }
453
454 int
455 window_has_pane(struct window *w, struct window_pane *wp)
456 {
457 struct window_pane *wp1;
458
459 TAILQ_FOREACH(wp1, &w->panes, entry) {
460 if (wp1 == wp)
461 return (1);
462 }
463 return (0);
464 }
465
466 void
467 window_update_focus(struct window *w)
468 {
469 if (w != NULL) {
470 log_debug("%s: @%u", __func__, w->id);
471 window_pane_update_focus(w->active);
472 }
473 }
474
475 void
476 window_pane_update_focus(struct window_pane *wp)
477 {
478 struct client *c;
479 int focused = 0;
480
481 if (wp != NULL) {
482 if (wp != wp->window->active)
483 focused = 0;
484 else {
485 TAILQ_FOREACH(c, &clients, entry) {
486 if (c->session != NULL &&
487 c->session->attached != 0 &&
488 (c->flags & CLIENT_FOCUSED) &&
489 c->session->curw->window == wp->window) {
490 focused = 1;
491 break;
492 }
493 }
494 }
495 if (!focused && (wp->flags & PANE_FOCUSED)) {
496 log_debug("%s: %%%u focus out", __func__, wp->id);
497 if (wp->base.mode & MODE_FOCUSON)
498 bufferevent_write(wp->event, "\033[O", 3);
499 notify_pane("pane-focus-out", wp);
500 wp->flags &= ~PANE_FOCUSED;
501 } else if (focused && (~wp->flags & PANE_FOCUSED)) {
502 log_debug("%s: %%%u focus in", __func__, wp->id);
503 if (wp->base.mode & MODE_FOCUSON)
504 bufferevent_write(wp->event, "\033[I", 3);
505 notify_pane("pane-focus-in", wp);
506 wp->flags |= PANE_FOCUSED;
507 } else
508 log_debug("%s: %%%u focus unchanged", __func__, wp->id);
509 }
510 }
511
512 int
513 window_set_active_pane(struct window *w, struct window_pane *wp, int notify)
514 {
515 log_debug("%s: pane %%%u", __func__, wp->id);
516
517 if (wp == w->active)
518 return (0);
519 w->last = w->active;
520
521 w->active = wp;
522 w->active->active_point = next_active_point++;
523 w->active->flags |= PANE_CHANGED;
524
525 if (options_get_number(global_options, "focus-events")) {
526 window_pane_update_focus(w->last);
527 window_pane_update_focus(w->active);
528 }
529
530 tty_update_window_offset(w);
531
532 if (notify)
533 notify_window("window-pane-changed", w);
534 return (1);
535 }
536
537 static int
538 window_pane_get_palette(struct window_pane *wp, int c)
539 {
540 if (wp == NULL)
541 return (-1);
542 return (colour_palette_get(&wp->palette, c));
543 }
544
545 void
546 window_redraw_active_switch(struct window *w, struct window_pane *wp)
547 {
548 struct grid_cell *gc1, *gc2;
549 int c1, c2;
550
551 if (wp == w->active)
552 return;
553
554 for (;;) {
555 /*
556 * If the active and inactive styles or palettes are different,
557 * need to redraw the panes.
558 */
559 gc1 = &wp->cached_gc;
560 gc2 = &wp->cached_active_gc;
561 if (!grid_cells_look_equal(gc1, gc2))
562 wp->flags |= PANE_REDRAW;
563 else {
564 c1 = window_pane_get_palette(wp, gc1->fg);
565 c2 = window_pane_get_palette(wp, gc2->fg);
566 if (c1 != c2)
567 wp->flags |= PANE_REDRAW;
568 else {
569 c1 = window_pane_get_palette(wp, gc1->bg);
570 c2 = window_pane_get_palette(wp, gc2->bg);
571 if (c1 != c2)
572 wp->flags |= PANE_REDRAW;
573 }
574 }
575 if (wp == w->active)
576 break;
577 wp = w->active;
578 }
579 }
580
581 struct window_pane *
582 window_get_active_at(struct window *w, u_int x, u_int y)
583 {
584 struct window_pane *wp;
585
586 TAILQ_FOREACH(wp, &w->panes, entry) {
587 if (!window_pane_visible(wp))
588 continue;
589 if (x < wp->xoff || x > wp->xoff + wp->sx)
590 continue;
591 if (y < wp->yoff || y > wp->yoff + wp->sy)
592 continue;
593 return (wp);
594 }
595 return (NULL);
596 }
597
598 struct window_pane *
599 window_find_string(struct window *w, const char *s)
600 {
601 u_int x, y, top = 0, bottom = w->sy - 1;
602 int status;
603
604 x = w->sx / 2;
605 y = w->sy / 2;
606
607 status = options_get_number(w->options, "pane-border-status");
608 if (status == PANE_STATUS_TOP)
609 top++;
610 else if (status == PANE_STATUS_BOTTOM)
611 bottom--;
612
613 if (strcasecmp(s, "top") == 0)
614 y = top;
615 else if (strcasecmp(s, "bottom") == 0)
616 y = bottom;
617 else if (strcasecmp(s, "left") == 0)
618 x = 0;
619 else if (strcasecmp(s, "right") == 0)
620 x = w->sx - 1;
621 else if (strcasecmp(s, "top-left") == 0) {
622 x = 0;
623 y = top;
624 } else if (strcasecmp(s, "top-right") == 0) {
625 x = w->sx - 1;
626 y = top;
627 } else if (strcasecmp(s, "bottom-left") == 0) {
628 x = 0;
629 y = bottom;
630 } else if (strcasecmp(s, "bottom-right") == 0) {
631 x = w->sx - 1;
632 y = bottom;
633 } else
634 return (NULL);
635
636 return (window_get_active_at(w, x, y));
637 }
638
639 int
640 window_zoom(struct window_pane *wp)
641 {
642 struct window *w = wp->window;
643 struct window_pane *wp1;
644
645 if (w->flags & WINDOW_ZOOMED)
646 return (-1);
647
648 if (window_count_panes(w) == 1)
649 return (-1);
650
651 if (w->active != wp)
652 window_set_active_pane(w, wp, 1);
653
654 TAILQ_FOREACH(wp1, &w->panes, entry) {
655 wp1->saved_layout_cell = wp1->layout_cell;
656 wp1->layout_cell = NULL;
657 }
658
659 w->saved_layout_root = w->layout_root;
660 layout_init(w, wp);
661 w->flags |= WINDOW_ZOOMED;
662 notify_window("window-layout-changed", w);
663
664 return (0);
665 }
666
667 int
668 window_unzoom(struct window *w)
669 {
670 struct window_pane *wp;
671
672 if (!(w->flags & WINDOW_ZOOMED))
673 return (-1);
674
675 w->flags &= ~WINDOW_ZOOMED;
676 layout_free(w);
677 w->layout_root = w->saved_layout_root;
678 w->saved_layout_root = NULL;
679
680 TAILQ_FOREACH(wp, &w->panes, entry) {
681 wp->layout_cell = wp->saved_layout_cell;
682 wp->saved_layout_cell = NULL;
683 }
684 layout_fix_panes(w, NULL);
685 notify_window("window-layout-changed", w);
686
687 return (0);
688 }
689
690 int
691 window_push_zoom(struct window *w, int always, int flag)
692 {
693 log_debug("%s: @%u %d", __func__, w->id,
694 flag && (w->flags & WINDOW_ZOOMED));
695 if (flag && (always || (w->flags & WINDOW_ZOOMED)))
696 w->flags |= WINDOW_WASZOOMED;
697 else
698 w->flags &= ~WINDOW_WASZOOMED;
699 return (window_unzoom(w) == 0);
700 }
701
702 int
703 window_pop_zoom(struct window *w)
704 {
705 log_debug("%s: @%u %d", __func__, w->id,
706 !!(w->flags & WINDOW_WASZOOMED));
707 if (w->flags & WINDOW_WASZOOMED)
708 return (window_zoom(w->active) == 0);
709 return (0);
710 }
711
712 struct window_pane *
713 window_add_pane(struct window *w, struct window_pane *other, u_int hlimit,
714 int flags)
715 {
716 struct window_pane *wp;
717
718 if (other == NULL)
719 other = w->active;
720
721 wp = window_pane_create(w, w->sx, w->sy, hlimit);
722 if (TAILQ_EMPTY(&w->panes)) {
723 log_debug("%s: @%u at start", __func__, w->id);
724 TAILQ_INSERT_HEAD(&w->panes, wp, entry);
725 } else if (flags & SPAWN_BEFORE) {
726 log_debug("%s: @%u before %%%u", __func__, w->id, wp->id);
727 if (flags & SPAWN_FULLSIZE)
728 TAILQ_INSERT_HEAD(&w->panes, wp, entry);
729 else
730 TAILQ_INSERT_BEFORE(other, wp, entry);
731 } else {
732 log_debug("%s: @%u after %%%u", __func__, w->id, wp->id);
733 if (flags & SPAWN_FULLSIZE)
734 TAILQ_INSERT_TAIL(&w->panes, wp, entry);
735 else
736 TAILQ_INSERT_AFTER(&w->panes, other, wp, entry);
737 }
738 return (wp);
739 }
740
741 void
742 window_lost_pane(struct window *w, struct window_pane *wp)
743 {
744 log_debug("%s: @%u pane %%%u", __func__, w->id, wp->id);
745
746 if (wp == marked_pane.wp)
747 server_clear_marked();
748
749 if (wp == w->active) {
750 w->active = w->last;
751 w->last = NULL;
752 if (w->active == NULL) {
753 w->active = TAILQ_PREV(wp, window_panes, entry);
754 if (w->active == NULL)
755 w->active = TAILQ_NEXT(wp, entry);
756 }
757 if (w->active != NULL) {
758 w->active->flags |= PANE_CHANGED;
759 notify_window("window-pane-changed", w);
760 window_update_focus(w);
761 }
762 } else if (wp == w->last)
763 w->last = NULL;
764 }
765
766 void
767 window_remove_pane(struct window *w, struct window_pane *wp)
768 {
769 window_lost_pane(w, wp);
770
771 TAILQ_REMOVE(&w->panes, wp, entry);
772 window_pane_destroy(wp);
773 }
774
775 struct window_pane *
776 window_pane_at_index(struct window *w, u_int idx)
777 {
778 struct window_pane *wp;
779 u_int n;
780
781 n = options_get_number(w->options, "pane-base-index");
782 TAILQ_FOREACH(wp, &w->panes, entry) {
783 if (n == idx)
784 return (wp);
785 n++;
786 }
787 return (NULL);
788 }
789
790 struct window_pane *
791 window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n)
792 {
793 for (; n > 0; n--) {
794 if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
795 wp = TAILQ_FIRST(&w->panes);
796 }
797
798 return (wp);
799 }
800
801 struct window_pane *
802 window_pane_previous_by_number(struct window *w, struct window_pane *wp,
803 u_int n)
804 {
805 for (; n > 0; n--) {
806 if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL)
807 wp = TAILQ_LAST(&w->panes, window_panes);
808 }
809
810 return (wp);
811 }
812
813 int
814 window_pane_index(struct window_pane *wp, u_int *i)
815 {
816 struct window_pane *wq;
817 struct window *w = wp->window;
818
819 *i = options_get_number(w->options, "pane-base-index");
820 TAILQ_FOREACH(wq, &w->panes, entry) {
821 if (wp == wq) {
822 return (0);
823 }
824 (*i)++;
825 }
826
827 return (-1);
828 }
829
830 u_int
831 window_count_panes(struct window *w)
832 {
833 struct window_pane *wp;
834 u_int n;
835
836 n = 0;
837 TAILQ_FOREACH(wp, &w->panes, entry)
838 n++;
839 return (n);
840 }
841
842 void
843 window_destroy_panes(struct window *w)
844 {
845 struct window_pane *wp;
846
847 while (!TAILQ_EMPTY(&w->panes)) {
848 wp = TAILQ_FIRST(&w->panes);
849 TAILQ_REMOVE(&w->panes, wp, entry);
850 window_pane_destroy(wp);
851 }
852 }
853
854 const char *
855 window_printable_flags(struct winlink *wl, int escape)
856 {
857 struct session *s = wl->session;
858 static char flags[32];
859 int pos;
860
861 pos = 0;
862 if (wl->flags & WINLINK_ACTIVITY) {
863 flags[pos++] = '#';
864 if (escape)
865 flags[pos++] = '#';
866 }
867 if (wl->flags & WINLINK_BELL)
868 flags[pos++] = '!';
869 if (wl->flags & WINLINK_SILENCE)
870 flags[pos++] = '~';
871 if (wl == s->curw)
872 flags[pos++] = '*';
873 if (wl == TAILQ_FIRST(&s->lastw))
874 flags[pos++] = '-';
875 if (server_check_marked() && wl == marked_pane.wl)
876 flags[pos++] = 'M';
877 if (wl->window->flags & WINDOW_ZOOMED)
878 flags[pos++] = 'Z';
879 flags[pos] = '\0';
880 return (flags);
881 }
882
883 struct window_pane *
884 window_pane_find_by_id_str(const char *s)
885 {
886 const char *errstr;
887 u_int id;
888
889 if (*s != '%')
890 return (NULL);
891
892 id = strtonum(s + 1, 0, UINT_MAX, &errstr);
893 if (errstr != NULL)
894 return (NULL);
895 return (window_pane_find_by_id(id));
896 }
897
898 struct window_pane *
899 window_pane_find_by_id(u_int id)
900 {
901 struct window_pane wp;
902
903 wp.id = id;
904 return (RB_FIND(window_pane_tree, &all_window_panes, &wp));
905 }
906
907 static struct window_pane *
908 window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
909 {
910 struct window_pane *wp;
911 char host[HOST_NAME_MAX + 1];
912
913 wp = xcalloc(1, sizeof *wp);
914 wp->window = w;
915 wp->options = options_create(w->options);
916 wp->flags = PANE_STYLECHANGED;
917
918 wp->id = next_window_pane_id++;
919 RB_INSERT(window_pane_tree, &all_window_panes, wp);
920
921 wp->fd = -1;
922
923 TAILQ_INIT(&wp->modes);
924
925 TAILQ_INIT (&wp->resize_queue);
926
927 wp->sx = sx;
928 wp->sy = sy;
929
930 wp->pipe_fd = -1;
931
932 colour_palette_init(&wp->palette);
933 colour_palette_from_option(&wp->palette, wp->options);
934
935 screen_init(&wp->base, sx, sy, hlimit);
936 wp->screen = &wp->base;
937 window_pane_default_cursor(wp);
938
939 screen_init(&wp->status_screen, 1, 1, 0);
940
941 if (gethostname(host, sizeof host) == 0)
942 screen_set_title(&wp->base, host);
943
944 return (wp);
945 }
946
947 static void
948 window_pane_destroy(struct window_pane *wp)
949 {
950 struct window_pane_resize *r;
951 struct window_pane_resize *r1;
952
953 window_pane_reset_mode_all(wp);
954 free(wp->searchstr);
955
956 if (wp->fd != -1) {
957 bufferevent_free(wp->event);
958 close(wp->fd);
959 }
960 if (wp->ictx != NULL)
961 input_free(wp->ictx);
962
963 screen_free(&wp->status_screen);
964
965 screen_free(&wp->base);
966
967 if (wp->pipe_fd != -1) {
968 bufferevent_free(wp->pipe_event);
969 close(wp->pipe_fd);
970 }
971
972 if (event_initialized(&wp->resize_timer))
973 event_del(&wp->resize_timer);
974 TAILQ_FOREACH_SAFE(r, &wp->resize_queue, entry, r1) {
975 TAILQ_REMOVE(&wp->resize_queue, r, entry);
976 free(r);
977 }
978
979 RB_REMOVE(window_pane_tree, &all_window_panes, wp);
980
981 options_free(wp->options);
982 free((void *)wp->cwd);
983 free(wp->shell);
984 cmd_free_argv(wp->argc, wp->argv);
985 colour_palette_free(&wp->palette);
986 free(wp);
987 }
988
989 static void
990 window_pane_read_callback(__unused struct bufferevent *bufev, void *data)
991 {
992 struct window_pane *wp = data;
993 struct evbuffer *evb = wp->event->input;
994 struct window_pane_offset *wpo = &wp->pipe_offset;
995 size_t size = EVBUFFER_LENGTH(evb);
996 char *new_data;
997 size_t new_size;
998 struct client *c;
999
1000 if (wp->pipe_fd != -1) {
1001 new_data = window_pane_get_new_data(wp, wpo, &new_size);
1002 if (new_size > 0) {
1003 bufferevent_write(wp->pipe_event, new_data, new_size);
1004 window_pane_update_used_data(wp, wpo, new_size);
1005 }
1006 }
1007
1008 log_debug("%%%u has %zu bytes", wp->id, size);
1009 TAILQ_FOREACH(c, &clients, entry) {
1010 if (c->session != NULL && (c->flags & CLIENT_CONTROL))
1011 control_write_output(c, wp);
1012 }
1013 input_parse_pane(wp);
1014 bufferevent_disable(wp->event, EV_READ);
1015 }
1016
1017 static void
1018 window_pane_error_callback(__unused struct bufferevent *bufev,
1019 __unused short what, void *data)
1020 {
1021 struct window_pane *wp = data;
1022
1023 log_debug("%%%u error", wp->id);
1024 wp->flags |= PANE_EXITED;
1025
1026 if (window_pane_destroy_ready(wp))
1027 server_destroy_pane(wp, 1);
1028 }
1029
1030 void
1031 window_pane_set_event(struct window_pane *wp)
1032 {
1033 setblocking(wp->fd, 0);
1034
1035 wp->event = bufferevent_new(wp->fd, window_pane_read_callback,
1036 NULL, window_pane_error_callback, wp);
1037 if (wp->event == NULL)
1038 fatalx("out of memory");
1039 wp->ictx = input_init(wp, wp->event, &wp->palette);
1040
1041 bufferevent_enable(wp->event, EV_READ|EV_WRITE);
1042 }
1043
1044 void
1045 window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
1046 {
1047 struct window_mode_entry *wme;
1048 struct window_pane_resize *r;
1049
1050 if (sx == wp->sx && sy == wp->sy)
1051 return;
1052
1053 r = xmalloc(sizeof *r);
1054 r->sx = sx;
1055 r->sy = sy;
1056 r->osx = wp->sx;
1057 r->osy = wp->sy;
1058 TAILQ_INSERT_TAIL (&wp->resize_queue, r, entry);
1059
1060 wp->sx = sx;
1061 wp->sy = sy;
1062
1063 log_debug("%s: %%%u resize %ux%u", __func__, wp->id, sx, sy);
1064 screen_resize(&wp->base, sx, sy, wp->base.saved_grid == NULL);
1065
1066 wme = TAILQ_FIRST(&wp->modes);
1067 if (wme != NULL && wme->mode->resize != NULL)
1068 wme->mode->resize(wme, sx, sy);
1069 }
1070
1071 int
1072 window_pane_set_mode(struct window_pane *wp, struct window_pane *swp,
1073 const struct window_mode *mode, struct cmd_find_state *fs,
1074 struct args *args)
1075 {
1076 struct window_mode_entry *wme;
1077
1078 if (!TAILQ_EMPTY(&wp->modes) && TAILQ_FIRST(&wp->modes)->mode == mode)
1079 return (1);
1080
1081 TAILQ_FOREACH(wme, &wp->modes, entry) {
1082 if (wme->mode == mode)
1083 break;
1084 }
1085 if (wme != NULL) {
1086 TAILQ_REMOVE(&wp->modes, wme, entry);
1087 TAILQ_INSERT_HEAD(&wp->modes, wme, entry);
1088 } else {
1089 wme = xcalloc(1, sizeof *wme);
1090 wme->wp = wp;
1091 wme->swp = swp;
1092 wme->mode = mode;
1093 wme->prefix = 1;
1094 TAILQ_INSERT_HEAD(&wp->modes, wme, entry);
1095 wme->screen = wme->mode->init(wme, fs, args);
1096 }
1097
1098 wp->screen = wme->screen;
1099 wp->flags |= (PANE_REDRAW|PANE_CHANGED);
1100
1101 server_redraw_window_borders(wp->window);
1102 server_status_window(wp->window);
1103 notify_pane("pane-mode-changed", wp);
1104
1105 return (0);
1106 }
1107
1108 void
1109 window_pane_reset_mode(struct window_pane *wp)
1110 {
1111 struct window_mode_entry *wme, *next;
1112
1113 if (TAILQ_EMPTY(&wp->modes))
1114 return;
1115
1116 wme = TAILQ_FIRST(&wp->modes);
1117 TAILQ_REMOVE(&wp->modes, wme, entry);
1118 wme->mode->free(wme);
1119 free(wme);
1120
1121 next = TAILQ_FIRST(&wp->modes);
1122 if (next == NULL) {
1123 wp->flags &= ~PANE_UNSEENCHANGES;
1124 log_debug("%s: no next mode", __func__);
1125 wp->screen = &wp->base;
1126 } else {
1127 log_debug("%s: next mode is %s", __func__, next->mode->name);
1128 wp->screen = next->screen;
1129 if (next->mode->resize != NULL)
1130 next->mode->resize(next, wp->sx, wp->sy);
1131 }
1132 wp->flags |= (PANE_REDRAW|PANE_CHANGED);
1133
1134 server_redraw_window_borders(wp->window);
1135 server_status_window(wp->window);
1136 notify_pane("pane-mode-changed", wp);
1137 }
1138
1139 void
1140 window_pane_reset_mode_all(struct window_pane *wp)
1141 {
1142 while (!TAILQ_EMPTY(&wp->modes))
1143 window_pane_reset_mode(wp);
1144 }
1145
1146 static void
1147 window_pane_copy_key(struct window_pane *wp, key_code key)
1148 {
1149 struct window_pane *loop;
1150
1151 TAILQ_FOREACH(loop, &wp->window->panes, entry) {
1152 if (loop != wp &&
1153 TAILQ_EMPTY(&loop->modes) &&
1154 loop->fd != -1 &&
1155 (~loop->flags & PANE_INPUTOFF) &&
1156 window_pane_visible(loop) &&
1157 options_get_number(loop->options, "synchronize-panes"))
1158 input_key_pane(loop, key, NULL);
1159 }
1160 }
1161
1162 int
1163 window_pane_key(struct window_pane *wp, struct client *c, struct session *s,
1164 struct winlink *wl, key_code key, struct mouse_event *m)
1165 {
1166 struct window_mode_entry *wme;
1167
1168 if (KEYC_IS_MOUSE(key) && m == NULL)
1169 return (-1);
1170
1171 wme = TAILQ_FIRST(&wp->modes);
1172 if (wme != NULL) {
1173 if (wme->mode->key != NULL && c != NULL) {
1174 key &= ~KEYC_MASK_FLAGS;
1175 wme->mode->key(wme, c, s, wl, key, m);
1176 }
1177 return (0);
1178 }
1179
1180 if (wp->fd == -1 || wp->flags & PANE_INPUTOFF)
1181 return (0);
1182
1183 if (input_key_pane(wp, key, m) != 0)
1184 return (-1);
1185
1186 if (KEYC_IS_MOUSE(key))
1187 return (0);
1188 if (options_get_number(wp->options, "synchronize-panes"))
1189 window_pane_copy_key(wp, key);
1190 return (0);
1191 }
1192
1193 int
1194 window_pane_visible(struct window_pane *wp)
1195 {
1196 if (~wp->window->flags & WINDOW_ZOOMED)
1197 return (1);
1198 return (wp == wp->window->active);
1199 }
1200
1201 u_int
1202 window_pane_search(struct window_pane *wp, const char *term, int regex,
1203 int ignore)
1204 {
1205 struct screen *s = &wp->base;
1206 regex_t r;
1207 char *new = NULL, *line;
1208 u_int i;
1209 int flags = 0, found;
1210 size_t n;
1211
1212 if (!regex) {
1213 if (ignore)
1214 flags |= FNM_CASEFOLD;
1215 xasprintf(&new, "*%s*", term);
1216 } else {
1217 if (ignore)
1218 flags |= REG_ICASE;
1219 if (regcomp(&r, term, flags|REG_EXTENDED) != 0)
1220 return (0);
1221 }
1222
1223 for (i = 0; i < screen_size_y(s); i++) {
1224 line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
1225 for (n = strlen(line); n > 0; n--) {
1226 if (!isspace((u_char)line[n - 1]))
1227 break;
1228 line[n - 1] = '\0';
1229 }
1230 log_debug("%s: %s", __func__, line);
1231 if (!regex)
1232 found = (fnmatch(new, line, flags) == 0);
1233 else
1234 found = (regexec(&r, line, 0, NULL, 0) == 0);
1235 free(line);
1236 if (found)
1237 break;
1238 }
1239 if (!regex)
1240 free(new);
1241 else
1242 regfree(&r);
1243
1244 if (i == screen_size_y(s))
1245 return (0);
1246 return (i + 1);
1247 }
1248
1249 /* Get MRU pane from a list. */
1250 static struct window_pane *
1251 window_pane_choose_best(struct window_pane **list, u_int size)
1252 {
1253 struct window_pane *next, *best;
1254 u_int i;
1255
1256 if (size == 0)
1257 return (NULL);
1258
1259 best = list[0];
1260 for (i = 1; i < size; i++) {
1261 next = list[i];
1262 if (next->active_point > best->active_point)
1263 best = next;
1264 }
1265 return (best);
1266 }
1267
1268 /*
1269 * Find the pane directly above another. We build a list of those adjacent to
1270 * top edge and then choose the best.
1271 */
1272 struct window_pane *
1273 window_pane_find_up(struct window_pane *wp)
1274 {
1275 struct window *w;
1276 struct window_pane *next, *best, **list;
1277 u_int edge, left, right, end, size;
1278 int status, found;
1279
1280 if (wp == NULL)
1281 return (NULL);
1282 w = wp->window;
1283 status = options_get_number(w->options, "pane-border-status");
1284
1285 list = NULL;
1286 size = 0;
1287
1288 edge = wp->yoff;
1289 if (status == PANE_STATUS_TOP) {
1290 if (edge == 1)
1291 edge = w->sy + 1;
1292 } else if (status == PANE_STATUS_BOTTOM) {
1293 if (edge == 0)
1294 edge = w->sy;
1295 } else {
1296 if (edge == 0)
1297 edge = w->sy + 1;
1298 }
1299
1300 left = wp->xoff;
1301 right = wp->xoff + wp->sx;
1302
1303 TAILQ_FOREACH(next, &w->panes, entry) {
1304 if (next == wp)
1305 continue;
1306 if (next->yoff + next->sy + 1 != edge)
1307 continue;
1308 end = next->xoff + next->sx - 1;
1309
1310 found = 0;
1311 if (next->xoff < left && end > right)
1312 found = 1;
1313 else if (next->xoff >= left && next->xoff <= right)
1314 found = 1;
1315 else if (end >= left && end <= right)
1316 found = 1;
1317 if (!found)
1318 continue;
1319 list = xreallocarray(list, size + 1, sizeof *list);
1320 list[size++] = next;
1321 }
1322
1323 best = window_pane_choose_best(list, size);
1324 free(list);
1325 return (best);
1326 }
1327
1328 /* Find the pane directly below another. */
1329 struct window_pane *
1330 window_pane_find_down(struct window_pane *wp)
1331 {
1332 struct window *w;
1333 struct window_pane *next, *best, **list;
1334 u_int edge, left, right, end, size;
1335 int status, found;
1336
1337 if (wp == NULL)
1338 return (NULL);
1339 w = wp->window;
1340 status = options_get_number(w->options, "pane-border-status");
1341
1342 list = NULL;
1343 size = 0;
1344
1345 edge = wp->yoff + wp->sy + 1;
1346 if (status == PANE_STATUS_TOP) {
1347 if (edge >= w->sy)
1348 edge = 1;
1349 } else if (status == PANE_STATUS_BOTTOM) {
1350 if (edge >= w->sy - 1)
1351 edge = 0;
1352 } else {
1353 if (edge >= w->sy)
1354 edge = 0;
1355 }
1356
1357 left = wp->xoff;
1358 right = wp->xoff + wp->sx;
1359
1360 TAILQ_FOREACH(next, &w->panes, entry) {
1361 if (next == wp)
1362 continue;
1363 if (next->yoff != edge)
1364 continue;
1365 end = next->xoff + next->sx - 1;
1366
1367 found = 0;
1368 if (next->xoff < left && end > right)
1369 found = 1;
1370 else if (next->xoff >= left && next->xoff <= right)
1371 found = 1;
1372 else if (end >= left && end <= right)
1373 found = 1;
1374 if (!found)
1375 continue;
1376 list = xreallocarray(list, size + 1, sizeof *list);
1377 list[size++] = next;
1378 }
1379
1380 best = window_pane_choose_best(list, size);
1381 free(list);
1382 return (best);
1383 }
1384
1385 /* Find the pane directly to the left of another. */
1386 struct window_pane *
1387 window_pane_find_left(struct window_pane *wp)
1388 {
1389 struct window *w;
1390 struct window_pane *next, *best, **list;
1391 u_int edge, top, bottom, end, size;
1392 int found;
1393
1394 if (wp == NULL)
1395 return (NULL);
1396 w = wp->window;
1397
1398 list = NULL;
1399 size = 0;
1400
1401 edge = wp->xoff;
1402 if (edge == 0)
1403 edge = w->sx + 1;
1404
1405 top = wp->yoff;
1406 bottom = wp->yoff + wp->sy;
1407
1408 TAILQ_FOREACH(next, &w->panes, entry) {
1409 if (next == wp)
1410 continue;
1411 if (next->xoff + next->sx + 1 != edge)
1412 continue;
1413 end = next->yoff + next->sy - 1;
1414
1415 found = 0;
1416 if (next->yoff < top && end > bottom)
1417 found = 1;
1418 else if (next->yoff >= top && next->yoff <= bottom)
1419 found = 1;
1420 else if (end >= top && end <= bottom)
1421 found = 1;
1422 if (!found)
1423 continue;
1424 list = xreallocarray(list, size + 1, sizeof *list);
1425 list[size++] = next;
1426 }
1427
1428 best = window_pane_choose_best(list, size);
1429 free(list);
1430 return (best);
1431 }
1432
1433 /* Find the pane directly to the right of another. */
1434 struct window_pane *
1435 window_pane_find_right(struct window_pane *wp)
1436 {
1437 struct window *w;
1438 struct window_pane *next, *best, **list;
1439 u_int edge, top, bottom, end, size;
1440 int found;
1441
1442 if (wp == NULL)
1443 return (NULL);
1444 w = wp->window;
1445
1446 list = NULL;
1447 size = 0;
1448
1449 edge = wp->xoff + wp->sx + 1;
1450 if (edge >= w->sx)
1451 edge = 0;
1452
1453 top = wp->yoff;
1454 bottom = wp->yoff + wp->sy;
1455
1456 TAILQ_FOREACH(next, &w->panes, entry) {
1457 if (next == wp)
1458 continue;
1459 if (next->xoff != edge)
1460 continue;
1461 end = next->yoff + next->sy - 1;
1462
1463 found = 0;
1464 if (next->yoff < top && end > bottom)
1465 found = 1;
1466 else if (next->yoff >= top && next->yoff <= bottom)
1467 found = 1;
1468 else if (end >= top && end <= bottom)
1469 found = 1;
1470 if (!found)
1471 continue;
1472 list = xreallocarray(list, size + 1, sizeof *list);
1473 list[size++] = next;
1474 }
1475
1476 best = window_pane_choose_best(list, size);
1477 free(list);
1478 return (best);
1479 }
1480
1481 /* Clear alert flags for a winlink */
1482 void
1483 winlink_clear_flags(struct winlink *wl)
1484 {
1485 struct winlink *loop;
1486
1487 wl->window->flags &= ~WINDOW_ALERTFLAGS;
1488 TAILQ_FOREACH(loop, &wl->window->winlinks, wentry) {
1489 if ((loop->flags & WINLINK_ALERTFLAGS) != 0) {
1490 loop->flags &= ~WINLINK_ALERTFLAGS;
1491 server_status_session(loop->session);
1492 }
1493 }
1494 }
1495
1496 /* Shuffle window indexes up. */
1497 int
1498 winlink_shuffle_up(struct session *s, struct winlink *wl, int before)
1499 {
1500 int idx, last;
1501
1502 if (wl == NULL)
1503 return (-1);
1504 if (before)
1505 idx = wl->idx;
1506 else
1507 idx = wl->idx + 1;
1508
1509 /* Find the next free index. */
1510 for (last = idx; last < INT_MAX; last++) {
1511 if (winlink_find_by_index(&s->windows, last) == NULL)
1512 break;
1513 }
1514 if (last == INT_MAX)
1515 return (-1);
1516
1517 /* Move everything from last - 1 to idx up a bit. */
1518 for (; last > idx; last--) {
1519 wl = winlink_find_by_index(&s->windows, last - 1);
1520 RB_REMOVE(winlinks, &s->windows, wl);
1521 wl->idx++;
1522 RB_INSERT(winlinks, &s->windows, wl);
1523 }
1524
1525 return (idx);
1526 }
1527
1528 static void
1529 window_pane_input_callback(struct client *c, __unused const char *path,
1530 int error, int closed, struct evbuffer *buffer, void *data)
1531 {
1532 struct window_pane_input_data *cdata = data;
1533 struct window_pane *wp;
1534 u_char *buf = EVBUFFER_DATA(buffer);
1535 size_t len = EVBUFFER_LENGTH(buffer);
1536
1537 wp = window_pane_find_by_id(cdata->wp);
1538 if (cdata->file != NULL && (wp == NULL || c->flags & CLIENT_DEAD)) {
1539 if (wp == NULL) {
1540 c->retval = 1;
1541 c->flags |= CLIENT_EXIT;
1542 }
1543 file_cancel(cdata->file);
1544 } else if (cdata->file == NULL || closed || error != 0) {
1545 cmdq_continue(cdata->item);
1546 server_client_unref(c);
1547 free(cdata);
1548 } else
1549 input_parse_buffer(wp, buf, len);
1550 evbuffer_drain(buffer, len);
1551 }
1552
1553 int
1554 window_pane_start_input(struct window_pane *wp, struct cmdq_item *item,
1555 char **cause)
1556 {
1557 struct client *c = cmdq_get_client(item);
1558 struct window_pane_input_data *cdata;
1559
1560 if (~wp->flags & PANE_EMPTY) {
1561 *cause = xstrdup("pane is not empty");
1562 return (-1);
1563 }
1564 if (c->flags & (CLIENT_DEAD|CLIENT_EXITED))
1565 return (1);
1566 if (c->session != NULL)
1567 return (1);
1568
1569 cdata = xmalloc(sizeof *cdata);
1570 cdata->item = item;
1571 cdata->wp = wp->id;
1572 cdata->file = file_read(c, "-", window_pane_input_callback, cdata);
1573 c->references++;
1574
1575 return (0);
1576 }
1577
1578 void *
1579 window_pane_get_new_data(struct window_pane *wp,
1580 struct window_pane_offset *wpo, size_t *size)
1581 {
1582 size_t used = wpo->used - wp->base_offset;
1583
1584 *size = EVBUFFER_LENGTH(wp->event->input) - used;
1585 return (EVBUFFER_DATA(wp->event->input) + used);
1586 }
1587
1588 void
1589 window_pane_update_used_data(struct window_pane *wp,
1590 struct window_pane_offset *wpo, size_t size)
1591 {
1592 size_t used = wpo->used - wp->base_offset;
1593
1594 if (size > EVBUFFER_LENGTH(wp->event->input) - used)
1595 size = EVBUFFER_LENGTH(wp->event->input) - used;
1596 wpo->used += size;
1597 }
1598
1599 void
1600 window_set_fill_character(struct window *w)
1601 {
1602 const char *value;
1603 struct utf8_data *ud;
1604
1605 free(w->fill_character);
1606 w->fill_character = NULL;
1607
1608 value = options_get_string(w->options, "fill-character");
1609 if (*value != '\0' && utf8_isvalid(value)) {
1610 ud = utf8_fromcstr(value);
1611 if (ud != NULL && ud[0].width == 1)
1612 w->fill_character = ud;
1613 }
1614 }
1615
1616 void
1617 window_pane_default_cursor(struct window_pane *wp)
1618 {
1619 struct screen *s = wp->screen;
1620 int c;
1621
1622 c = options_get_number(wp->options, "cursor-colour");
1623 s->default_ccolour = c;
1624
1625 c = options_get_number(wp->options, "cursor-style");
1626 s->default_mode = 0;
1627 screen_set_cursor_style(c, &s->default_cstyle, &s->default_mode);
1628 }