Annotation of src/usr.bin/tmux/window.c, Revision 1.96
1.96 ! nicm 1: /* $OpenBSD: window.c,v 1.95 2013/03/25 11:55:01 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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 <errno.h>
23: #include <fcntl.h>
1.5 nicm 24: #include <fnmatch.h>
1.1 nicm 25: #include <paths.h>
1.8 nicm 26: #include <pwd.h>
1.1 nicm 27: #include <signal.h>
28: #include <stdint.h>
29: #include <stdlib.h>
30: #include <string.h>
31: #include <termios.h>
32: #include <unistd.h>
33: #include <util.h>
34:
35: #include "tmux.h"
36:
37: /*
1.14 nicm 38: * Each window is attached to a number of panes, each of which is a pty. This
1.1 nicm 39: * file contains code to handle them.
40: *
41: * A pane has two buffers attached, these are filled and emptied by the main
42: * server poll loop. Output data is received from pty's in screen format,
43: * translated and returned as a series of escape sequences and strings via
44: * input_parse (in input.c). Input data is received as key codes and written
45: * directly via input_key.
46: *
47: * Each pane also has a "virtual" screen (screen.c) which contains the current
48: * state and is redisplayed when the window is reattached to a client.
49: *
50: * Windows are stored directly on a global array and wrapped in any number of
51: * winlink structs to be linked onto local session RB trees. A reference count
52: * is maintained and a window removed from the global list and destroyed when
53: * it reaches zero.
54: */
55:
56: /* Global window list. */
57: struct windows windows;
58:
1.64 nicm 59: /* Global panes tree. */
60: struct window_pane_tree all_window_panes;
1.71 nicm 61: u_int next_window_pane_id;
62: u_int next_window_id;
1.64 nicm 63:
1.75 nicm 64: void window_pane_timer_callback(int, short, void *);
1.37 nicm 65: void window_pane_read_callback(struct bufferevent *, void *);
66: void window_pane_error_callback(struct bufferevent *, short, void *);
67:
1.1 nicm 68: RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
69:
70: int
71: winlink_cmp(struct winlink *wl1, struct winlink *wl2)
72: {
73: return (wl1->idx - wl2->idx);
1.12 nicm 74: }
75:
1.64 nicm 76: RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
77:
78: int
79: window_pane_cmp(struct window_pane *wp1, struct window_pane *wp2)
80: {
81: return (wp1->id - wp2->id);
82: }
83:
1.12 nicm 84: struct winlink *
85: winlink_find_by_window(struct winlinks *wwl, struct window *w)
86: {
87: struct winlink *wl;
88:
89: RB_FOREACH(wl, winlinks, wwl) {
90: if (wl->window == w)
91: return (wl);
92: }
93:
94: return (NULL);
1.1 nicm 95: }
96:
97: struct winlink *
98: winlink_find_by_index(struct winlinks *wwl, int idx)
99: {
100: struct winlink wl;
101:
102: if (idx < 0)
103: fatalx("bad index");
104:
105: wl.idx = idx;
106: return (RB_FIND(winlinks, wwl, &wl));
107: }
108:
1.71 nicm 109: struct winlink *
110: winlink_find_by_window_id(struct winlinks *wwl, u_int id)
111: {
112: struct winlink *wl;
113:
114: RB_FOREACH(wl, winlinks, wwl) {
115: if (wl->window->id == id)
116: return (wl);
117: }
1.78 nicm 118: return (NULL);
1.71 nicm 119: }
120:
1.1 nicm 121: int
1.22 nicm 122: winlink_next_index(struct winlinks *wwl, int idx)
1.1 nicm 123: {
1.22 nicm 124: int i;
1.1 nicm 125:
1.22 nicm 126: i = idx;
127: do {
1.1 nicm 128: if (winlink_find_by_index(wwl, i) == NULL)
129: return (i);
1.22 nicm 130: if (i == INT_MAX)
131: i = 0;
132: else
133: i++;
134: } while (i != idx);
135: return (-1);
1.1 nicm 136: }
137:
138: u_int
139: winlink_count(struct winlinks *wwl)
140: {
141: struct winlink *wl;
142: u_int n;
143:
144: n = 0;
145: RB_FOREACH(wl, winlinks, wwl)
146: n++;
147:
148: return (n);
149: }
150:
151: struct winlink *
1.63 nicm 152: winlink_add(struct winlinks *wwl, int idx)
1.1 nicm 153: {
154: struct winlink *wl;
155:
1.22 nicm 156: if (idx < 0) {
157: if ((idx = winlink_next_index(wwl, -idx - 1)) == -1)
158: return (NULL);
159: } else if (winlink_find_by_index(wwl, idx) != NULL)
1.1 nicm 160: return (NULL);
161:
162: wl = xcalloc(1, sizeof *wl);
163: wl->idx = idx;
164: RB_INSERT(winlinks, wwl, wl);
165:
1.63 nicm 166: return (wl);
167: }
168:
169: void
170: winlink_set_window(struct winlink *wl, struct window *w)
171: {
172: wl->window = w;
1.1 nicm 173: w->references++;
174: }
175:
176: void
177: winlink_remove(struct winlinks *wwl, struct winlink *wl)
178: {
179: struct window *w = wl->window;
180:
181: RB_REMOVE(winlinks, wwl, wl);
1.82 nicm 182: free(wl->status_text);
183: free(wl);
1.1 nicm 184:
1.84 nicm 185: if (w != NULL)
186: window_remove_ref(w);
1.1 nicm 187: }
188:
189: struct winlink *
1.41 nicm 190: winlink_next(struct winlink *wl)
1.1 nicm 191: {
192: return (RB_NEXT(winlinks, wwl, wl));
193: }
194:
195: struct winlink *
1.41 nicm 196: winlink_previous(struct winlink *wl)
1.1 nicm 197: {
198: return (RB_PREV(winlinks, wwl, wl));
1.52 nicm 199: }
200:
201: struct winlink *
1.53 nicm 202: winlink_next_by_number(struct winlink *wl, struct session *s, int n)
1.52 nicm 203: {
204: for (; n > 0; n--) {
205: if ((wl = RB_NEXT(winlinks, wwl, wl)) == NULL)
1.53 nicm 206: wl = RB_MIN(winlinks, &s->windows);
1.52 nicm 207: }
208:
209: return (wl);
210: }
211:
212: struct winlink *
1.53 nicm 213: winlink_previous_by_number(struct winlink *wl, struct session *s, int n)
1.52 nicm 214: {
215: for (; n > 0; n--) {
216: if ((wl = RB_PREV(winlinks, wwl, wl)) == NULL)
1.53 nicm 217: wl = RB_MAX(winlinks, &s->windows);
1.52 nicm 218: }
219:
220: return (wl);
1.1 nicm 221: }
222:
223: void
224: winlink_stack_push(struct winlink_stack *stack, struct winlink *wl)
225: {
226: if (wl == NULL)
227: return;
228:
229: winlink_stack_remove(stack, wl);
1.28 nicm 230: TAILQ_INSERT_HEAD(stack, wl, sentry);
1.1 nicm 231: }
232:
233: void
234: winlink_stack_remove(struct winlink_stack *stack, struct winlink *wl)
235: {
236: struct winlink *wl2;
237:
238: if (wl == NULL)
239: return;
1.42 nicm 240:
1.28 nicm 241: TAILQ_FOREACH(wl2, stack, sentry) {
1.1 nicm 242: if (wl2 == wl) {
1.28 nicm 243: TAILQ_REMOVE(stack, wl, sentry);
1.1 nicm 244: return;
245: }
246: }
247: }
248:
249: int
250: window_index(struct window *s, u_int *i)
251: {
252: for (*i = 0; *i < ARRAY_LENGTH(&windows); (*i)++) {
253: if (s == ARRAY_ITEM(&windows, *i))
254: return (0);
255: }
256: return (-1);
257: }
258:
259: struct window *
1.71 nicm 260: window_find_by_id(u_int id)
261: {
262: struct window *w;
263: u_int i;
264:
265: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
266: w = ARRAY_ITEM(&windows, i);
267: if (w->id == id)
268: return (w);
269: }
1.78 nicm 270: return (NULL);
1.71 nicm 271: }
272:
273: struct window *
1.1 nicm 274: window_create1(u_int sx, u_int sy)
275: {
276: struct window *w;
277: u_int i;
278:
1.38 nicm 279: w = xcalloc(1, sizeof *w);
1.71 nicm 280: w->id = next_window_id++;
1.1 nicm 281: w->name = NULL;
282: w->flags = 0;
283:
284: TAILQ_INIT(&w->panes);
285: w->active = NULL;
1.14 nicm 286:
1.17 nicm 287: w->lastlayout = -1;
1.14 nicm 288: w->layout_root = NULL;
1.42 nicm 289:
1.1 nicm 290: w->sx = sx;
291: w->sy = sy;
292:
1.7 nicm 293: options_init(&w->options, &global_w_options);
1.79 nicm 294: if (options_get_number(&w->options, "automatic-rename"))
295: queue_window_name(w);
1.1 nicm 296:
297: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
298: if (ARRAY_ITEM(&windows, i) == NULL) {
299: ARRAY_SET(&windows, i, w);
300: break;
301: }
302: }
303: if (i == ARRAY_LENGTH(&windows))
304: ARRAY_ADD(&windows, w);
305: w->references = 0;
306:
307: return (w);
308: }
309:
310: struct window *
1.23 nicm 311: window_create(const char *name, const char *cmd, const char *shell,
312: const char *cwd, struct environ *env, struct termios *tio,
1.91 nicm 313: u_int sx, u_int sy, u_int hlimit, char **cause)
1.1 nicm 314: {
1.14 nicm 315: struct window *w;
316: struct window_pane *wp;
1.1 nicm 317:
318: w = window_create1(sx, sy);
1.16 nicm 319: wp = window_add_pane(w, hlimit);
1.93 nicm 320: layout_init(w, wp);
1.91 nicm 321:
1.96 ! nicm 322: if (window_pane_spawn(wp, cmd, shell, cwd, env, tio, cause) != 0) {
1.1 nicm 323: window_destroy(w);
324: return (NULL);
325: }
1.91 nicm 326:
1.1 nicm 327: w->active = TAILQ_FIRST(&w->panes);
328: if (name != NULL) {
329: w->name = xstrdup(name);
330: options_set_number(&w->options, "automatic-rename", 0);
331: } else
332: w->name = default_window_name(w);
1.91 nicm 333:
1.1 nicm 334: return (w);
335: }
336:
337: void
338: window_destroy(struct window *w)
339: {
340: u_int i;
341:
1.93 nicm 342: window_unzoom(w);
343:
1.1 nicm 344: if (window_index(w, &i) != 0)
345: fatalx("index not found");
346: ARRAY_SET(&windows, i, NULL);
347: while (!ARRAY_EMPTY(&windows) && ARRAY_LAST(&windows) == NULL)
348: ARRAY_TRUNC(&windows, 1);
349:
1.14 nicm 350: if (w->layout_root != NULL)
351: layout_free(w);
352:
1.73 nicm 353: if (event_initialized(&w->name_timer))
354: evtimer_del(&w->name_timer);
1.38 nicm 355:
1.1 nicm 356: options_free(&w->options);
357:
358: window_destroy_panes(w);
359:
1.82 nicm 360: free(w->name);
361: free(w);
1.84 nicm 362: }
363:
364: void
365: window_remove_ref(struct window *w)
366: {
367: if (w->references == 0)
368: fatal("bad reference count");
369: w->references--;
370: if (w->references == 0)
371: window_destroy(w);
1.72 nicm 372: }
373:
374: void
375: window_set_name(struct window *w, const char *new_name)
376: {
1.82 nicm 377: free(w->name);
1.72 nicm 378: w->name = xstrdup(new_name);
1.74 nicm 379: notify_window_renamed(w);
1.1 nicm 380: }
381:
1.15 nicm 382: void
1.1 nicm 383: window_resize(struct window *w, u_int sx, u_int sy)
384: {
385: w->sx = sx;
386: w->sy = sy;
387: }
388:
389: void
390: window_set_active_pane(struct window *w, struct window_pane *wp)
391: {
1.59 nicm 392: if (wp == w->active)
393: return;
1.58 nicm 394: w->last = w->active;
1.1 nicm 395: w->active = wp;
1.10 nicm 396: while (!window_pane_visible(w->active)) {
1.1 nicm 397: w->active = TAILQ_PREV(w->active, window_panes, entry);
1.10 nicm 398: if (w->active == NULL)
399: w->active = TAILQ_LAST(&w->panes, window_panes);
400: if (w->active == wp)
401: return;
1.29 nicm 402: }
403: }
404:
1.66 nicm 405: struct window_pane *
406: window_get_active_at(struct window *w, u_int x, u_int y)
1.29 nicm 407: {
408: struct window_pane *wp;
409:
410: TAILQ_FOREACH(wp, &w->panes, entry) {
1.66 nicm 411: if (!window_pane_visible(wp))
1.29 nicm 412: continue;
1.66 nicm 413: if (x < wp->xoff || x > wp->xoff + wp->sx)
1.29 nicm 414: continue;
1.66 nicm 415: if (y < wp->yoff || y > wp->yoff + wp->sy)
1.29 nicm 416: continue;
1.66 nicm 417: return (wp);
418: }
419: return (NULL);
420: }
421:
422: void
423: window_set_active_at(struct window *w, u_int x, u_int y)
424: {
425: struct window_pane *wp;
426:
427: wp = window_get_active_at(w, x, y);
428: if (wp != NULL && wp != w->active)
1.29 nicm 429: window_set_active_pane(w, wp);
1.66 nicm 430: }
431:
432: struct window_pane *
433: window_find_string(struct window *w, const char *s)
434: {
435: u_int x, y;
436:
437: x = w->sx / 2;
438: y = w->sy / 2;
439:
440: if (strcasecmp(s, "top") == 0)
441: y = 0;
442: else if (strcasecmp(s, "bottom") == 0)
443: y = w->sy - 1;
444: else if (strcasecmp(s, "left") == 0)
445: x = 0;
446: else if (strcasecmp(s, "right") == 0)
447: x = w->sx - 1;
448: else if (strcasecmp(s, "top-left") == 0) {
449: x = 0;
450: y = 0;
451: } else if (strcasecmp(s, "top-right") == 0) {
452: x = w->sx - 1;
453: y = 0;
454: } else if (strcasecmp(s, "bottom-left") == 0) {
455: x = 0;
456: y = w->sy - 1;
457: } else if (strcasecmp(s, "bottom-right") == 0) {
458: x = w->sx - 1;
459: y = w->sy - 1;
460: } else
461: return (NULL);
462:
463: return (window_get_active_at(w, x, y));
1.1 nicm 464: }
465:
1.93 nicm 466: int
467: window_zoom(struct window_pane *wp)
468: {
469: struct window *w = wp->window;
470: struct window_pane *wp1;
471:
472: if (w->flags & WINDOW_ZOOMED)
473: return (-1);
474:
475: if (!window_pane_visible(wp))
476: return (-1);
1.94 nicm 477:
478: if (window_count_panes(w) == 1)
479: return (-1);
480:
1.93 nicm 481: if (w->active != wp)
482: window_set_active_pane(w, wp);
483:
484: TAILQ_FOREACH(wp1, &w->panes, entry) {
485: wp1->saved_layout_cell = wp1->layout_cell;
486: wp1->layout_cell = NULL;
487: }
488:
489: w->saved_layout_root = w->layout_root;
490: layout_init(w, wp);
491: w->flags |= WINDOW_ZOOMED;
492:
493: return (0);
494: }
495:
496: int
497: window_unzoom(struct window *w)
498: {
499: struct window_pane *wp, *wp1;
500:
501: if (!(w->flags & WINDOW_ZOOMED))
502: return (-1);
503: wp = w->active;
504:
505: w->flags &= ~WINDOW_ZOOMED;
506: layout_free(w);
507: w->layout_root = w->saved_layout_root;
508:
509: TAILQ_FOREACH(wp1, &w->panes, entry) {
510: wp1->layout_cell = wp1->saved_layout_cell;
511: wp1->saved_layout_cell = NULL;
512: }
513: layout_fix_panes(w, w->sx, w->sy);
514:
515: return (0);
516: }
517:
1.1 nicm 518: struct window_pane *
1.16 nicm 519: window_add_pane(struct window *w, u_int hlimit)
1.1 nicm 520: {
521: struct window_pane *wp;
522:
1.14 nicm 523: wp = window_pane_create(w, w->sx, w->sy, hlimit);
1.1 nicm 524: if (TAILQ_EMPTY(&w->panes))
525: TAILQ_INSERT_HEAD(&w->panes, wp, entry);
526: else
527: TAILQ_INSERT_AFTER(&w->panes, w->active, wp, entry);
528: return (wp);
529: }
530:
531: void
532: window_remove_pane(struct window *w, struct window_pane *wp)
533: {
1.57 nicm 534: if (wp == w->active) {
1.58 nicm 535: w->active = w->last;
536: w->last = NULL;
537: if (w->active == NULL) {
538: w->active = TAILQ_PREV(wp, window_panes, entry);
539: if (w->active == NULL)
540: w->active = TAILQ_NEXT(wp, entry);
541: }
542: } else if (wp == w->last)
543: w->last = NULL;
1.1 nicm 544:
545: TAILQ_REMOVE(&w->panes, wp, entry);
546: window_pane_destroy(wp);
547: }
548:
549: struct window_pane *
550: window_pane_at_index(struct window *w, u_int idx)
551: {
552: struct window_pane *wp;
553: u_int n;
554:
1.67 nicm 555: n = options_get_number(&w->options, "pane-base-index");
1.1 nicm 556: TAILQ_FOREACH(wp, &w->panes, entry) {
557: if (n == idx)
558: return (wp);
559: n++;
560: }
561: return (NULL);
1.53 nicm 562: }
563:
564: struct window_pane *
565: window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n)
566: {
567: for (; n > 0; n--) {
568: if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
569: wp = TAILQ_FIRST(&w->panes);
570: }
571:
572: return (wp);
573: }
574:
575: struct window_pane *
576: window_pane_previous_by_number(struct window *w, struct window_pane *wp,
577: u_int n)
578: {
579: for (; n > 0; n--) {
580: if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL)
581: wp = TAILQ_LAST(&w->panes, window_panes);
582: }
583:
584: return (wp);
1.13 nicm 585: }
586:
1.69 nicm 587: int
588: window_pane_index(struct window_pane *wp, u_int *i)
1.13 nicm 589: {
590: struct window_pane *wq;
1.69 nicm 591: struct window *w = wp->window;
1.13 nicm 592:
1.69 nicm 593: *i = options_get_number(&w->options, "pane-base-index");
1.13 nicm 594: TAILQ_FOREACH(wq, &w->panes, entry) {
1.69 nicm 595: if (wp == wq) {
596: return (0);
597: }
598: (*i)++;
1.13 nicm 599: }
1.69 nicm 600:
601: return (-1);
1.1 nicm 602: }
603:
604: u_int
605: window_count_panes(struct window *w)
606: {
607: struct window_pane *wp;
608: u_int n;
609:
610: n = 0;
611: TAILQ_FOREACH(wp, &w->panes, entry)
612: n++;
613: return (n);
614: }
615:
616: void
617: window_destroy_panes(struct window *w)
618: {
619: struct window_pane *wp;
620:
621: while (!TAILQ_EMPTY(&w->panes)) {
622: wp = TAILQ_FIRST(&w->panes);
623: TAILQ_REMOVE(&w->panes, wp, entry);
624: window_pane_destroy(wp);
625: }
1.61 nicm 626: }
627:
628: /* Return list of printable window flag symbols. No flags is just a space. */
629: char *
630: window_printable_flags(struct session *s, struct winlink *wl)
631: {
632: char flags[BUFSIZ];
633: int pos;
634:
635: pos = 0;
636: if (wl->flags & WINLINK_ACTIVITY)
637: flags[pos++] = '#';
638: if (wl->flags & WINLINK_BELL)
639: flags[pos++] = '!';
640: if (wl->flags & WINLINK_CONTENT)
641: flags[pos++] = '+';
642: if (wl->flags & WINLINK_SILENCE)
643: flags[pos++] = '~';
644: if (wl == s->curw)
645: flags[pos++] = '*';
646: if (wl == TAILQ_FIRST(&s->lastw))
647: flags[pos++] = '-';
1.93 nicm 648: if (wl->window->flags & WINDOW_ZOOMED)
649: flags[pos++] = 'Z';
1.61 nicm 650: if (pos == 0)
651: flags[pos++] = ' ';
652: flags[pos] = '\0';
653: return (xstrdup(flags));
1.1 nicm 654: }
655:
1.64 nicm 656: /* Find pane in global tree by id. */
657: struct window_pane *
658: window_pane_find_by_id(u_int id)
659: {
660: struct window_pane wp;
661:
662: wp.id = id;
663: return (RB_FIND(window_pane_tree, &all_window_panes, &wp));
664: }
665:
1.1 nicm 666: struct window_pane *
667: window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
668: {
669: struct window_pane *wp;
670:
671: wp = xcalloc(1, sizeof *wp);
672: wp->window = w;
673:
1.71 nicm 674: wp->id = next_window_pane_id++;
1.64 nicm 675: RB_INSERT(window_pane_tree, &all_window_panes, wp);
676:
1.1 nicm 677: wp->cmd = NULL;
1.23 nicm 678: wp->shell = NULL;
1.1 nicm 679: wp->cwd = NULL;
680:
681: wp->fd = -1;
1.37 nicm 682: wp->event = NULL;
1.1 nicm 683:
684: wp->mode = NULL;
1.14 nicm 685:
686: wp->layout_cell = NULL;
1.1 nicm 687:
688: wp->xoff = 0;
1.42 nicm 689: wp->yoff = 0;
1.1 nicm 690:
691: wp->sx = sx;
692: wp->sy = sy;
693:
1.32 nicm 694: wp->pipe_fd = -1;
695: wp->pipe_off = 0;
1.36 nicm 696: wp->pipe_event = NULL;
1.32 nicm 697:
1.9 nicm 698: wp->saved_grid = NULL;
699:
1.1 nicm 700: screen_init(&wp->base, sx, sy, hlimit);
701: wp->screen = &wp->base;
702:
703: input_init(wp);
704:
705: return (wp);
706: }
707:
708: void
709: window_pane_destroy(struct window_pane *wp)
710: {
1.55 nicm 711: window_pane_reset_mode(wp);
712:
1.76 nicm 713: if (event_initialized(&wp->changes_timer))
714: evtimer_del(&wp->changes_timer);
1.75 nicm 715:
1.37 nicm 716: if (wp->fd != -1) {
1.70 nicm 717: bufferevent_free(wp->event);
1.1 nicm 718: close(wp->fd);
1.37 nicm 719: }
1.1 nicm 720:
721: input_free(wp);
722:
723: screen_free(&wp->base);
1.9 nicm 724: if (wp->saved_grid != NULL)
725: grid_destroy(wp->saved_grid);
1.1 nicm 726:
1.32 nicm 727: if (wp->pipe_fd != -1) {
1.70 nicm 728: bufferevent_free(wp->pipe_event);
1.32 nicm 729: close(wp->pipe_fd);
730: }
731:
1.64 nicm 732: RB_REMOVE(window_pane_tree, &all_window_panes, wp);
733:
1.82 nicm 734: free(wp->cwd);
735: free(wp->shell);
736: free(wp->cmd);
737: free(wp);
1.1 nicm 738: }
739:
740: int
1.23 nicm 741: window_pane_spawn(struct window_pane *wp, const char *cmd, const char *shell,
1.21 nicm 742: const char *cwd, struct environ *env, struct termios *tio, char **cause)
1.1 nicm 743: {
1.47 nicm 744: struct winsize ws;
1.64 nicm 745: char *argv0, paneid[16];
1.47 nicm 746: const char *ptr;
747: struct termios tio2;
1.1 nicm 748:
1.37 nicm 749: if (wp->fd != -1) {
1.70 nicm 750: bufferevent_free(wp->event);
1.1 nicm 751: close(wp->fd);
1.37 nicm 752: }
1.1 nicm 753: if (cmd != NULL) {
1.82 nicm 754: free(wp->cmd);
1.1 nicm 755: wp->cmd = xstrdup(cmd);
756: }
1.23 nicm 757: if (shell != NULL) {
1.82 nicm 758: free(wp->shell);
1.23 nicm 759: wp->shell = xstrdup(shell);
760: }
1.1 nicm 761: if (cwd != NULL) {
1.82 nicm 762: free(wp->cwd);
1.1 nicm 763: wp->cwd = xstrdup(cwd);
764: }
1.91 nicm 765:
766: log_debug("spawn: %s -- %s", wp->shell, wp->cmd);
1.1 nicm 767:
768: memset(&ws, 0, sizeof ws);
769: ws.ws_col = screen_size_x(&wp->base);
770: ws.ws_row = screen_size_y(&wp->base);
771:
1.42 nicm 772: switch (wp->pid = forkpty(&wp->fd, wp->tty, NULL, &ws)) {
1.1 nicm 773: case -1:
774: wp->fd = -1;
775: xasprintf(cause, "%s: %s", cmd, strerror(errno));
776: return (-1);
777: case 0:
778: if (chdir(wp->cwd) != 0)
779: chdir("/");
1.25 nicm 780:
781: if (tcgetattr(STDIN_FILENO, &tio2) != 0)
782: fatal("tcgetattr failed");
783: if (tio != NULL)
784: memcpy(tio2.c_cc, tio->c_cc, sizeof tio2.c_cc);
785: tio2.c_cc[VERASE] = '\177';
786: if (tcsetattr(STDIN_FILENO, TCSANOW, &tio2) != 0)
787: fatal("tcgetattr failed");
1.18 nicm 788:
1.56 nicm 789: closefrom(STDERR_FILENO + 1);
790:
1.64 nicm 791: xsnprintf(paneid, sizeof paneid, "%%%u", wp->id);
792: environ_set(env, "TMUX_PANE", paneid);
1.47 nicm 793: environ_push(env);
1.18 nicm 794:
1.54 nicm 795: clear_signals(1);
1.1 nicm 796: log_close();
797:
1.80 nicm 798: setenv("SHELL", wp->shell, 1);
799: ptr = strrchr(wp->shell, '/');
800:
1.8 nicm 801: if (*wp->cmd != '\0') {
1.80 nicm 802: /* Use the command. */
803: if (ptr != NULL && *(ptr + 1) != '\0')
804: xasprintf(&argv0, "%s", ptr + 1);
805: else
806: xasprintf(&argv0, "%s", wp->shell);
807: execl(wp->shell, argv0, "-c", wp->cmd, (char *) NULL);
1.8 nicm 808: fatal("execl failed");
809: }
810:
811: /* No command; fork a login shell. */
1.23 nicm 812: if (ptr != NULL && *(ptr + 1) != '\0')
1.8 nicm 813: xasprintf(&argv0, "-%s", ptr + 1);
814: else
1.23 nicm 815: xasprintf(&argv0, "-%s", wp->shell);
816: execl(wp->shell, argv0, (char *) NULL);
1.1 nicm 817: fatal("execl failed");
818: }
819:
1.62 nicm 820: setblocking(wp->fd, 0);
821:
1.37 nicm 822: wp->event = bufferevent_new(wp->fd,
823: window_pane_read_callback, NULL, window_pane_error_callback, wp);
824: bufferevent_enable(wp->event, EV_READ|EV_WRITE);
1.1 nicm 825:
826: return (0);
1.75 nicm 827: }
828:
829: void
830: window_pane_timer_start(struct window_pane *wp)
831: {
832: struct timeval tv;
833:
834: tv.tv_sec = 0;
835: tv.tv_usec = 1000;
836:
837: evtimer_del(&wp->changes_timer);
838: evtimer_set(&wp->changes_timer, window_pane_timer_callback, wp);
839: evtimer_add(&wp->changes_timer, &tv);
840: }
841:
842: void
843: window_pane_timer_callback(unused int fd, unused short events, void *data)
844: {
845: struct window_pane *wp = data;
846: struct window *w = wp->window;
847: u_int interval, trigger;
848:
849: interval = options_get_number(&w->options, "c0-change-interval");
850: trigger = options_get_number(&w->options, "c0-change-trigger");
851:
852: if (wp->changes_redraw++ == interval) {
853: wp->flags |= PANE_REDRAW;
854: wp->changes_redraw = 0;
855:
856: }
857:
858: if (trigger == 0 || wp->changes < trigger) {
859: wp->flags |= PANE_REDRAW;
860: wp->flags &= ~PANE_DROP;
861: } else
862: window_pane_timer_start(wp);
863: wp->changes = 0;
1.1 nicm 864: }
865:
1.15 nicm 866: void
1.37 nicm 867: window_pane_read_callback(unused struct bufferevent *bufev, void *data)
868: {
1.46 nicm 869: struct window_pane *wp = data;
870: char *new_data;
871: size_t new_size;
872:
873: new_size = EVBUFFER_LENGTH(wp->event->input) - wp->pipe_off;
874: if (wp->pipe_fd != -1 && new_size > 0) {
875: new_data = EVBUFFER_DATA(wp->event->input);
876: bufferevent_write(wp->pipe_event, new_data, new_size);
877: }
878:
879: input_parse(wp);
1.37 nicm 880:
1.46 nicm 881: wp->pipe_off = EVBUFFER_LENGTH(wp->event->input);
1.60 nicm 882:
883: /*
884: * If we get here, we're not outputting anymore, so set the silence
885: * flag on the window.
886: */
887: wp->window->flags |= WINDOW_SILENCE;
888: if (gettimeofday(&wp->window->silence_timer, NULL) != 0)
889: fatal("gettimeofday failed.");
1.37 nicm 890: }
891:
892: void
893: window_pane_error_callback(
894: unused struct bufferevent *bufev, unused short what, void *data)
895: {
896: struct window_pane *wp = data;
897:
1.39 nicm 898: server_destroy_pane(wp);
1.37 nicm 899: }
900:
901: void
1.1 nicm 902: window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
903: {
904: if (sx == wp->sx && sy == wp->sy)
1.15 nicm 905: return;
1.1 nicm 906: wp->sx = sx;
907: wp->sy = sy;
908:
1.89 nicm 909: screen_resize(&wp->base, sx, sy, wp->saved_grid == NULL);
1.1 nicm 910: if (wp->mode != NULL)
911: wp->mode->resize(wp, sx, sy);
1.95 nicm 912:
913: wp->flags |= PANE_RESIZE;
1.44 nicm 914: }
915:
916: /*
917: * Enter alternative screen mode. A copy of the visible screen is saved and the
918: * history is not updated
919: */
920: void
1.87 nicm 921: window_pane_alternate_on(struct window_pane *wp, struct grid_cell *gc,
922: int cursor)
1.44 nicm 923: {
924: struct screen *s = &wp->base;
925: u_int sx, sy;
926:
927: if (wp->saved_grid != NULL)
928: return;
929: if (!options_get_number(&wp->window->options, "alternate-screen"))
930: return;
931: sx = screen_size_x(s);
932: sy = screen_size_y(s);
933:
934: wp->saved_grid = grid_create(sx, sy, 0);
935: grid_duplicate_lines(wp->saved_grid, 0, s->grid, screen_hsize(s), sy);
1.87 nicm 936: if (cursor) {
937: wp->saved_cx = s->cx;
938: wp->saved_cy = s->cy;
939: }
1.44 nicm 940: memcpy(&wp->saved_cell, gc, sizeof wp->saved_cell);
941:
942: grid_view_clear(s->grid, 0, 0, sx, sy);
943:
944: wp->base.grid->flags &= ~GRID_HISTORY;
945:
946: wp->flags |= PANE_REDRAW;
947: }
948:
949: /* Exit alternate screen mode and restore the copied grid. */
950: void
1.87 nicm 951: window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc,
952: int cursor)
1.44 nicm 953: {
954: struct screen *s = &wp->base;
955: u_int sx, sy;
956:
957: if (wp->saved_grid == NULL)
958: return;
959: if (!options_get_number(&wp->window->options, "alternate-screen"))
960: return;
961: sx = screen_size_x(s);
962: sy = screen_size_y(s);
963:
964: /*
965: * If the current size is bigger, temporarily resize to the old size
966: * before copying back.
967: */
968: if (sy > wp->saved_grid->sy)
1.89 nicm 969: screen_resize(s, sx, wp->saved_grid->sy, 1);
1.44 nicm 970:
971: /* Restore the grid, cursor position and cell. */
972: grid_duplicate_lines(s->grid, screen_hsize(s), wp->saved_grid, 0, sy);
1.87 nicm 973: if (cursor)
974: s->cx = wp->saved_cx;
1.44 nicm 975: if (s->cx > screen_size_x(s) - 1)
976: s->cx = screen_size_x(s) - 1;
1.87 nicm 977: if (cursor)
978: s->cy = wp->saved_cy;
1.44 nicm 979: if (s->cy > screen_size_y(s) - 1)
980: s->cy = screen_size_y(s) - 1;
981: memcpy(gc, &wp->saved_cell, sizeof *gc);
982:
983: /*
984: * Turn history back on (so resize can use it) and then resize back to
985: * the current size.
986: */
987: wp->base.grid->flags |= GRID_HISTORY;
1.89 nicm 988: if (sy > wp->saved_grid->sy || sx != wp->saved_grid->sx)
989: screen_resize(s, sx, sy, 1);
1.44 nicm 990:
991: grid_destroy(wp->saved_grid);
992: wp->saved_grid = NULL;
993:
994: wp->flags |= PANE_REDRAW;
1.1 nicm 995: }
996:
997: int
998: window_pane_set_mode(struct window_pane *wp, const struct window_mode *mode)
999: {
1000: struct screen *s;
1001:
1.15 nicm 1002: if (wp->mode != NULL)
1.1 nicm 1003: return (1);
1004: wp->mode = mode;
1005:
1006: if ((s = wp->mode->init(wp)) != NULL)
1007: wp->screen = s;
1.34 nicm 1008: wp->flags |= PANE_REDRAW;
1.1 nicm 1009: return (0);
1010: }
1011:
1012: void
1013: window_pane_reset_mode(struct window_pane *wp)
1014: {
1015: if (wp->mode == NULL)
1016: return;
1017:
1018: wp->mode->free(wp);
1019: wp->mode = NULL;
1020:
1021: wp->screen = &wp->base;
1.34 nicm 1022: wp->flags |= PANE_REDRAW;
1.1 nicm 1023: }
1024:
1025: void
1.51 nicm 1026: window_pane_key(struct window_pane *wp, struct session *sess, int key)
1.1 nicm 1027: {
1.27 nicm 1028: struct window_pane *wp2;
1029:
1.30 nicm 1030: if (!window_pane_visible(wp))
1.3 nicm 1031: return;
1032:
1.1 nicm 1033: if (wp->mode != NULL) {
1034: if (wp->mode->key != NULL)
1.51 nicm 1035: wp->mode->key(wp, sess, key);
1.27 nicm 1036: return;
1.30 nicm 1037: }
1.27 nicm 1038:
1.30 nicm 1039: if (wp->fd == -1)
1040: return;
1.27 nicm 1041: input_key(wp, key);
1042: if (options_get_number(&wp->window->options, "synchronize-panes")) {
1043: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1044: if (wp2 == wp || wp2->mode != NULL)
1045: continue;
1046: if (wp2->fd != -1 && window_pane_visible(wp2))
1047: input_key(wp2, key);
1048: }
1049: }
1.1 nicm 1050: }
1051:
1052: void
1053: window_pane_mouse(
1.51 nicm 1054: struct window_pane *wp, struct session *sess, struct mouse_event *m)
1.1 nicm 1055: {
1.30 nicm 1056: if (!window_pane_visible(wp))
1.3 nicm 1057: return;
1058:
1.31 nicm 1059: if (m->x < wp->xoff || m->x >= wp->xoff + wp->sx)
1.1 nicm 1060: return;
1.31 nicm 1061: if (m->y < wp->yoff || m->y >= wp->yoff + wp->sy)
1.1 nicm 1062: return;
1.31 nicm 1063: m->x -= wp->xoff;
1064: m->y -= wp->yoff;
1.1 nicm 1065:
1066: if (wp->mode != NULL) {
1.65 nicm 1067: if (wp->mode->mouse != NULL &&
1068: options_get_number(&wp->window->options, "mode-mouse"))
1.51 nicm 1069: wp->mode->mouse(wp, sess, m);
1.30 nicm 1070: } else if (wp->fd != -1)
1.86 nicm 1071: input_mouse(wp, sess, m);
1.10 nicm 1072: }
1073:
1074: int
1075: window_pane_visible(struct window_pane *wp)
1076: {
1077: struct window *w = wp->window;
1078:
1.93 nicm 1079: if (wp->layout_cell == NULL)
1080: return (0);
1.10 nicm 1081: if (wp->xoff >= w->sx || wp->yoff >= w->sy)
1082: return (0);
1083: if (wp->xoff + wp->sx > w->sx || wp->yoff + wp->sy > w->sy)
1084: return (0);
1085: return (1);
1.1 nicm 1086: }
1087:
1088: char *
1.5 nicm 1089: window_pane_search(struct window_pane *wp, const char *searchstr, u_int *lineno)
1.1 nicm 1090: {
1.4 nicm 1091: struct screen *s = &wp->base;
1.5 nicm 1092: char *newsearchstr, *line, *msg;
1.4 nicm 1093: u_int i;
1094:
1.5 nicm 1095: msg = NULL;
1096: xasprintf(&newsearchstr, "*%s*", searchstr);
1097:
1.4 nicm 1098: for (i = 0; i < screen_size_y(s); i++) {
1099: line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
1.5 nicm 1100: if (fnmatch(newsearchstr, line, 0) == 0) {
1101: msg = line;
1102: if (lineno != NULL)
1103: *lineno = i;
1104: break;
1105: }
1.82 nicm 1106: free(line);
1.4 nicm 1107: }
1.5 nicm 1108:
1.82 nicm 1109: free(newsearchstr);
1.5 nicm 1110: return (msg);
1.45 nicm 1111: }
1112:
1113: /* Find the pane directly above another. */
1114: struct window_pane *
1115: window_pane_find_up(struct window_pane *wp)
1116: {
1117: struct window_pane *wp2;
1118: u_int left, top;
1119:
1120: if (wp == NULL || !window_pane_visible(wp))
1121: return (NULL);
1122:
1123: top = wp->yoff;
1124: if (top == 0)
1125: top = wp->window->sy + 1;
1126: left = wp->xoff;
1127:
1128: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1129: if (!window_pane_visible(wp2))
1130: continue;
1131: if (wp2->yoff + wp2->sy + 1 != top)
1132: continue;
1133: if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
1134: return (wp2);
1135: }
1136: return (NULL);
1137: }
1138:
1139: /* Find the pane directly below another. */
1140: struct window_pane *
1141: window_pane_find_down(struct window_pane *wp)
1142: {
1143: struct window_pane *wp2;
1144: u_int left, bottom;
1145:
1146: if (wp == NULL || !window_pane_visible(wp))
1147: return (NULL);
1148:
1149: bottom = wp->yoff + wp->sy + 1;
1150: if (bottom >= wp->window->sy)
1151: bottom = 0;
1152: left = wp->xoff;
1153:
1154: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1155: if (!window_pane_visible(wp2))
1156: continue;
1157: if (wp2->yoff != bottom)
1158: continue;
1159: if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
1160: return (wp2);
1161: }
1162: return (NULL);
1163: }
1164:
1165: /*
1166: * Find the pane directly to the left of another, adjacent to the left side and
1167: * containing the top edge.
1168: */
1169: struct window_pane *
1170: window_pane_find_left(struct window_pane *wp)
1171: {
1172: struct window_pane *wp2;
1173: u_int left, top;
1174:
1175: if (wp == NULL || !window_pane_visible(wp))
1176: return (NULL);
1177:
1178: left = wp->xoff;
1179: if (left == 0)
1180: left = wp->window->sx + 1;
1181: top = wp->yoff;
1182:
1183: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1184: if (!window_pane_visible(wp2))
1185: continue;
1186: if (wp2->xoff + wp2->sx + 1 != left)
1187: continue;
1188: if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
1189: return (wp2);
1190: }
1191: return (NULL);
1192: }
1193:
1194: /*
1195: * Find the pane directly to the right of another, that is adjacent to the
1196: * right edge and including the top edge.
1197: */
1198: struct window_pane *
1199: window_pane_find_right(struct window_pane *wp)
1200: {
1201: struct window_pane *wp2;
1202: u_int right, top;
1203:
1204: if (wp == NULL || !window_pane_visible(wp))
1205: return (NULL);
1206:
1207: right = wp->xoff + wp->sx + 1;
1208: if (right >= wp->window->sx)
1209: right = 0;
1210: top = wp->yoff;
1211:
1212: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1213: if (!window_pane_visible(wp2))
1214: continue;
1215: if (wp2->xoff != right)
1216: continue;
1217: if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
1218: return (wp2);
1219: }
1220: return (NULL);
1.81 nicm 1221: }
1222:
1223: /* Clear alert flags for a winlink */
1224: void
1225: winlink_clear_flags(struct winlink *wl)
1226: {
1227: struct winlink *wm;
1228: struct session *s;
1229: struct window *w;
1230: u_int i;
1231:
1232: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
1233: if ((w = ARRAY_ITEM(&windows, i)) == NULL)
1234: continue;
1235:
1236: RB_FOREACH(s, sessions, &sessions) {
1237: if ((wm = session_has(s, w)) == NULL)
1238: continue;
1239:
1240: if (wm->window != wl->window)
1241: continue;
1242: if ((wm->flags & WINLINK_ALERTFLAGS) == 0)
1243: continue;
1244:
1245: wm->flags &= ~WINLINK_ALERTFLAGS;
1246: server_status_session(s);
1247: }
1248: }
1.83 nicm 1249: }
1250:
1251: /* Set the grid_cell with fg/bg/attr information when window is in a mode. */
1252: void
1253: window_mode_attrs(struct grid_cell *gc, struct options *oo)
1254: {
1.85 nicm 1255: memcpy(gc, &grid_default_cell, sizeof *gc);
1.83 nicm 1256: colour_set_fg(gc, options_get_number(oo, "mode-fg"));
1257: colour_set_bg(gc, options_get_number(oo, "mode-bg"));
1258: gc->attr |= options_get_number(oo, "mode-attr");
1.1 nicm 1259: }
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