Annotation of src/usr.bin/tmux/window.c, Revision 1.93
1.93 ! nicm 1: /* $OpenBSD: window.c,v 1.92 2013/03/24 09:25:04 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;
1.91 nicm 317: const char *prefix;
318: char *cmd1;
1.1 nicm 319:
320: w = window_create1(sx, sy);
1.16 nicm 321: wp = window_add_pane(w, hlimit);
1.93 ! nicm 322: layout_init(w, wp);
1.91 nicm 323:
324: if (*cmd != '\0') {
325: prefix = options_get_string(&w->options, "command-prefix");
326: xasprintf(&cmd1, "%s%s", prefix, cmd);
327: } else
328: cmd1 = xstrdup("");
329: if (window_pane_spawn(wp, cmd1, shell, cwd, env, tio, cause) != 0) {
1.1 nicm 330: window_destroy(w);
1.91 nicm 331: free(cmd1);
1.1 nicm 332: return (NULL);
333: }
1.91 nicm 334: free(cmd1);
335:
1.1 nicm 336: w->active = TAILQ_FIRST(&w->panes);
337: if (name != NULL) {
338: w->name = xstrdup(name);
339: options_set_number(&w->options, "automatic-rename", 0);
340: } else
341: w->name = default_window_name(w);
1.91 nicm 342:
1.1 nicm 343: return (w);
344: }
345:
346: void
347: window_destroy(struct window *w)
348: {
349: u_int i;
350:
1.93 ! nicm 351: window_unzoom(w);
! 352:
1.1 nicm 353: if (window_index(w, &i) != 0)
354: fatalx("index not found");
355: ARRAY_SET(&windows, i, NULL);
356: while (!ARRAY_EMPTY(&windows) && ARRAY_LAST(&windows) == NULL)
357: ARRAY_TRUNC(&windows, 1);
358:
1.14 nicm 359: if (w->layout_root != NULL)
360: layout_free(w);
361:
1.73 nicm 362: if (event_initialized(&w->name_timer))
363: evtimer_del(&w->name_timer);
1.38 nicm 364:
1.1 nicm 365: options_free(&w->options);
366:
367: window_destroy_panes(w);
368:
1.82 nicm 369: free(w->name);
370: free(w);
1.84 nicm 371: }
372:
373: void
374: window_remove_ref(struct window *w)
375: {
376: if (w->references == 0)
377: fatal("bad reference count");
378: w->references--;
379: if (w->references == 0)
380: window_destroy(w);
1.72 nicm 381: }
382:
383: void
384: window_set_name(struct window *w, const char *new_name)
385: {
1.82 nicm 386: free(w->name);
1.72 nicm 387: w->name = xstrdup(new_name);
1.74 nicm 388: notify_window_renamed(w);
1.1 nicm 389: }
390:
1.15 nicm 391: void
1.1 nicm 392: window_resize(struct window *w, u_int sx, u_int sy)
393: {
394: w->sx = sx;
395: w->sy = sy;
396: }
397:
398: void
399: window_set_active_pane(struct window *w, struct window_pane *wp)
400: {
1.59 nicm 401: if (wp == w->active)
402: return;
1.58 nicm 403: w->last = w->active;
1.1 nicm 404: w->active = wp;
1.10 nicm 405: while (!window_pane_visible(w->active)) {
1.1 nicm 406: w->active = TAILQ_PREV(w->active, window_panes, entry);
1.10 nicm 407: if (w->active == NULL)
408: w->active = TAILQ_LAST(&w->panes, window_panes);
409: if (w->active == wp)
410: return;
1.29 nicm 411: }
412: }
413:
1.66 nicm 414: struct window_pane *
415: window_get_active_at(struct window *w, u_int x, u_int y)
1.29 nicm 416: {
417: struct window_pane *wp;
418:
419: TAILQ_FOREACH(wp, &w->panes, entry) {
1.66 nicm 420: if (!window_pane_visible(wp))
1.29 nicm 421: continue;
1.66 nicm 422: if (x < wp->xoff || x > wp->xoff + wp->sx)
1.29 nicm 423: continue;
1.66 nicm 424: if (y < wp->yoff || y > wp->yoff + wp->sy)
1.29 nicm 425: continue;
1.66 nicm 426: return (wp);
427: }
428: return (NULL);
429: }
430:
431: void
432: window_set_active_at(struct window *w, u_int x, u_int y)
433: {
434: struct window_pane *wp;
435:
436: wp = window_get_active_at(w, x, y);
437: if (wp != NULL && wp != w->active)
1.29 nicm 438: window_set_active_pane(w, wp);
1.66 nicm 439: }
440:
441: struct window_pane *
442: window_find_string(struct window *w, const char *s)
443: {
444: u_int x, y;
445:
446: x = w->sx / 2;
447: y = w->sy / 2;
448:
449: if (strcasecmp(s, "top") == 0)
450: y = 0;
451: else if (strcasecmp(s, "bottom") == 0)
452: y = w->sy - 1;
453: else if (strcasecmp(s, "left") == 0)
454: x = 0;
455: else if (strcasecmp(s, "right") == 0)
456: x = w->sx - 1;
457: else if (strcasecmp(s, "top-left") == 0) {
458: x = 0;
459: y = 0;
460: } else if (strcasecmp(s, "top-right") == 0) {
461: x = w->sx - 1;
462: y = 0;
463: } else if (strcasecmp(s, "bottom-left") == 0) {
464: x = 0;
465: y = w->sy - 1;
466: } else if (strcasecmp(s, "bottom-right") == 0) {
467: x = w->sx - 1;
468: y = w->sy - 1;
469: } else
470: return (NULL);
471:
472: return (window_get_active_at(w, x, y));
1.1 nicm 473: }
474:
1.93 ! nicm 475: int
! 476: window_zoom(struct window_pane *wp)
! 477: {
! 478: struct window *w = wp->window;
! 479: struct window_pane *wp1;
! 480:
! 481: if (w->flags & WINDOW_ZOOMED)
! 482: return (-1);
! 483:
! 484: if (!window_pane_visible(wp))
! 485: return (-1);
! 486: if (w->active != wp)
! 487: window_set_active_pane(w, wp);
! 488:
! 489: TAILQ_FOREACH(wp1, &w->panes, entry) {
! 490: wp1->saved_layout_cell = wp1->layout_cell;
! 491: wp1->layout_cell = NULL;
! 492: }
! 493:
! 494: w->saved_layout_root = w->layout_root;
! 495: layout_init(w, wp);
! 496: w->flags |= WINDOW_ZOOMED;
! 497:
! 498: return (0);
! 499: }
! 500:
! 501: int
! 502: window_unzoom(struct window *w)
! 503: {
! 504: struct window_pane *wp, *wp1;
! 505:
! 506: if (!(w->flags & WINDOW_ZOOMED))
! 507: return (-1);
! 508: wp = w->active;
! 509:
! 510: w->flags &= ~WINDOW_ZOOMED;
! 511: layout_free(w);
! 512: w->layout_root = w->saved_layout_root;
! 513:
! 514: TAILQ_FOREACH(wp1, &w->panes, entry) {
! 515: wp1->layout_cell = wp1->saved_layout_cell;
! 516: wp1->saved_layout_cell = NULL;
! 517: }
! 518: layout_fix_panes(w, w->sx, w->sy);
! 519:
! 520: return (0);
! 521: }
! 522:
1.1 nicm 523: struct window_pane *
1.16 nicm 524: window_add_pane(struct window *w, u_int hlimit)
1.1 nicm 525: {
526: struct window_pane *wp;
527:
1.14 nicm 528: wp = window_pane_create(w, w->sx, w->sy, hlimit);
1.1 nicm 529: if (TAILQ_EMPTY(&w->panes))
530: TAILQ_INSERT_HEAD(&w->panes, wp, entry);
531: else
532: TAILQ_INSERT_AFTER(&w->panes, w->active, wp, entry);
533: return (wp);
534: }
535:
536: void
537: window_remove_pane(struct window *w, struct window_pane *wp)
538: {
1.57 nicm 539: if (wp == w->active) {
1.58 nicm 540: w->active = w->last;
541: w->last = NULL;
542: if (w->active == NULL) {
543: w->active = TAILQ_PREV(wp, window_panes, entry);
544: if (w->active == NULL)
545: w->active = TAILQ_NEXT(wp, entry);
546: }
547: } else if (wp == w->last)
548: w->last = NULL;
1.1 nicm 549:
550: TAILQ_REMOVE(&w->panes, wp, entry);
551: window_pane_destroy(wp);
552: }
553:
554: struct window_pane *
555: window_pane_at_index(struct window *w, u_int idx)
556: {
557: struct window_pane *wp;
558: u_int n;
559:
1.67 nicm 560: n = options_get_number(&w->options, "pane-base-index");
1.1 nicm 561: TAILQ_FOREACH(wp, &w->panes, entry) {
562: if (n == idx)
563: return (wp);
564: n++;
565: }
566: return (NULL);
1.53 nicm 567: }
568:
569: struct window_pane *
570: window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n)
571: {
572: for (; n > 0; n--) {
573: if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
574: wp = TAILQ_FIRST(&w->panes);
575: }
576:
577: return (wp);
578: }
579:
580: struct window_pane *
581: window_pane_previous_by_number(struct window *w, struct window_pane *wp,
582: u_int n)
583: {
584: for (; n > 0; n--) {
585: if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL)
586: wp = TAILQ_LAST(&w->panes, window_panes);
587: }
588:
589: return (wp);
1.13 nicm 590: }
591:
1.69 nicm 592: int
593: window_pane_index(struct window_pane *wp, u_int *i)
1.13 nicm 594: {
595: struct window_pane *wq;
1.69 nicm 596: struct window *w = wp->window;
1.13 nicm 597:
1.69 nicm 598: *i = options_get_number(&w->options, "pane-base-index");
1.13 nicm 599: TAILQ_FOREACH(wq, &w->panes, entry) {
1.69 nicm 600: if (wp == wq) {
601: return (0);
602: }
603: (*i)++;
1.13 nicm 604: }
1.69 nicm 605:
606: return (-1);
1.1 nicm 607: }
608:
609: u_int
610: window_count_panes(struct window *w)
611: {
612: struct window_pane *wp;
613: u_int n;
614:
615: n = 0;
616: TAILQ_FOREACH(wp, &w->panes, entry)
617: n++;
618: return (n);
619: }
620:
621: void
622: window_destroy_panes(struct window *w)
623: {
624: struct window_pane *wp;
625:
626: while (!TAILQ_EMPTY(&w->panes)) {
627: wp = TAILQ_FIRST(&w->panes);
628: TAILQ_REMOVE(&w->panes, wp, entry);
629: window_pane_destroy(wp);
630: }
1.61 nicm 631: }
632:
633: /* Return list of printable window flag symbols. No flags is just a space. */
634: char *
635: window_printable_flags(struct session *s, struct winlink *wl)
636: {
637: char flags[BUFSIZ];
638: int pos;
639:
640: pos = 0;
641: if (wl->flags & WINLINK_ACTIVITY)
642: flags[pos++] = '#';
643: if (wl->flags & WINLINK_BELL)
644: flags[pos++] = '!';
645: if (wl->flags & WINLINK_CONTENT)
646: flags[pos++] = '+';
647: if (wl->flags & WINLINK_SILENCE)
648: flags[pos++] = '~';
649: if (wl == s->curw)
650: flags[pos++] = '*';
651: if (wl == TAILQ_FIRST(&s->lastw))
652: flags[pos++] = '-';
1.93 ! nicm 653: if (wl->window->flags & WINDOW_ZOOMED)
! 654: flags[pos++] = 'Z';
1.61 nicm 655: if (pos == 0)
656: flags[pos++] = ' ';
657: flags[pos] = '\0';
658: return (xstrdup(flags));
1.1 nicm 659: }
660:
1.64 nicm 661: /* Find pane in global tree by id. */
662: struct window_pane *
663: window_pane_find_by_id(u_int id)
664: {
665: struct window_pane wp;
666:
667: wp.id = id;
668: return (RB_FIND(window_pane_tree, &all_window_panes, &wp));
669: }
670:
1.1 nicm 671: struct window_pane *
672: window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
673: {
674: struct window_pane *wp;
675:
676: wp = xcalloc(1, sizeof *wp);
677: wp->window = w;
678:
1.71 nicm 679: wp->id = next_window_pane_id++;
1.64 nicm 680: RB_INSERT(window_pane_tree, &all_window_panes, wp);
681:
1.1 nicm 682: wp->cmd = NULL;
1.23 nicm 683: wp->shell = NULL;
1.1 nicm 684: wp->cwd = NULL;
685:
686: wp->fd = -1;
1.37 nicm 687: wp->event = NULL;
1.1 nicm 688:
689: wp->mode = NULL;
1.14 nicm 690:
691: wp->layout_cell = NULL;
1.1 nicm 692:
693: wp->xoff = 0;
1.42 nicm 694: wp->yoff = 0;
1.1 nicm 695:
696: wp->sx = sx;
697: wp->sy = sy;
698:
1.32 nicm 699: wp->pipe_fd = -1;
700: wp->pipe_off = 0;
1.36 nicm 701: wp->pipe_event = NULL;
1.32 nicm 702:
1.9 nicm 703: wp->saved_grid = NULL;
704:
1.1 nicm 705: screen_init(&wp->base, sx, sy, hlimit);
706: wp->screen = &wp->base;
707:
708: input_init(wp);
709:
710: return (wp);
711: }
712:
713: void
714: window_pane_destroy(struct window_pane *wp)
715: {
1.55 nicm 716: window_pane_reset_mode(wp);
717:
1.76 nicm 718: if (event_initialized(&wp->changes_timer))
719: evtimer_del(&wp->changes_timer);
1.75 nicm 720:
1.37 nicm 721: if (wp->fd != -1) {
1.70 nicm 722: bufferevent_free(wp->event);
1.1 nicm 723: close(wp->fd);
1.37 nicm 724: }
1.1 nicm 725:
726: input_free(wp);
727:
728: screen_free(&wp->base);
1.9 nicm 729: if (wp->saved_grid != NULL)
730: grid_destroy(wp->saved_grid);
1.1 nicm 731:
1.32 nicm 732: if (wp->pipe_fd != -1) {
1.70 nicm 733: bufferevent_free(wp->pipe_event);
1.32 nicm 734: close(wp->pipe_fd);
735: }
736:
1.64 nicm 737: RB_REMOVE(window_pane_tree, &all_window_panes, wp);
738:
1.82 nicm 739: free(wp->cwd);
740: free(wp->shell);
741: free(wp->cmd);
742: free(wp);
1.1 nicm 743: }
744:
745: int
1.23 nicm 746: window_pane_spawn(struct window_pane *wp, const char *cmd, const char *shell,
1.21 nicm 747: const char *cwd, struct environ *env, struct termios *tio, char **cause)
1.1 nicm 748: {
1.47 nicm 749: struct winsize ws;
1.64 nicm 750: char *argv0, paneid[16];
1.47 nicm 751: const char *ptr;
752: struct termios tio2;
1.1 nicm 753:
1.37 nicm 754: if (wp->fd != -1) {
1.70 nicm 755: bufferevent_free(wp->event);
1.1 nicm 756: close(wp->fd);
1.37 nicm 757: }
1.1 nicm 758: if (cmd != NULL) {
1.82 nicm 759: free(wp->cmd);
1.1 nicm 760: wp->cmd = xstrdup(cmd);
761: }
1.23 nicm 762: if (shell != NULL) {
1.82 nicm 763: free(wp->shell);
1.23 nicm 764: wp->shell = xstrdup(shell);
765: }
1.1 nicm 766: if (cwd != NULL) {
1.82 nicm 767: free(wp->cwd);
1.1 nicm 768: wp->cwd = xstrdup(cwd);
769: }
1.91 nicm 770:
771: log_debug("spawn: %s -- %s", wp->shell, wp->cmd);
1.1 nicm 772:
773: memset(&ws, 0, sizeof ws);
774: ws.ws_col = screen_size_x(&wp->base);
775: ws.ws_row = screen_size_y(&wp->base);
776:
1.42 nicm 777: switch (wp->pid = forkpty(&wp->fd, wp->tty, NULL, &ws)) {
1.1 nicm 778: case -1:
779: wp->fd = -1;
780: xasprintf(cause, "%s: %s", cmd, strerror(errno));
781: return (-1);
782: case 0:
783: if (chdir(wp->cwd) != 0)
784: chdir("/");
1.25 nicm 785:
786: if (tcgetattr(STDIN_FILENO, &tio2) != 0)
787: fatal("tcgetattr failed");
788: if (tio != NULL)
789: memcpy(tio2.c_cc, tio->c_cc, sizeof tio2.c_cc);
790: tio2.c_cc[VERASE] = '\177';
791: if (tcsetattr(STDIN_FILENO, TCSANOW, &tio2) != 0)
792: fatal("tcgetattr failed");
1.18 nicm 793:
1.56 nicm 794: closefrom(STDERR_FILENO + 1);
795:
1.64 nicm 796: xsnprintf(paneid, sizeof paneid, "%%%u", wp->id);
797: environ_set(env, "TMUX_PANE", paneid);
1.47 nicm 798: environ_push(env);
1.18 nicm 799:
1.54 nicm 800: clear_signals(1);
1.1 nicm 801: log_close();
802:
1.80 nicm 803: setenv("SHELL", wp->shell, 1);
804: ptr = strrchr(wp->shell, '/');
805:
1.8 nicm 806: if (*wp->cmd != '\0') {
1.80 nicm 807: /* Use the command. */
808: if (ptr != NULL && *(ptr + 1) != '\0')
809: xasprintf(&argv0, "%s", ptr + 1);
810: else
811: xasprintf(&argv0, "%s", wp->shell);
812: execl(wp->shell, argv0, "-c", wp->cmd, (char *) NULL);
1.8 nicm 813: fatal("execl failed");
814: }
815:
816: /* No command; fork a login shell. */
1.23 nicm 817: if (ptr != NULL && *(ptr + 1) != '\0')
1.8 nicm 818: xasprintf(&argv0, "-%s", ptr + 1);
819: else
1.23 nicm 820: xasprintf(&argv0, "-%s", wp->shell);
821: execl(wp->shell, argv0, (char *) NULL);
1.1 nicm 822: fatal("execl failed");
823: }
824:
1.62 nicm 825: setblocking(wp->fd, 0);
826:
1.37 nicm 827: wp->event = bufferevent_new(wp->fd,
828: window_pane_read_callback, NULL, window_pane_error_callback, wp);
829: bufferevent_enable(wp->event, EV_READ|EV_WRITE);
1.1 nicm 830:
831: return (0);
1.75 nicm 832: }
833:
834: void
835: window_pane_timer_start(struct window_pane *wp)
836: {
837: struct timeval tv;
838:
839: tv.tv_sec = 0;
840: tv.tv_usec = 1000;
841:
842: evtimer_del(&wp->changes_timer);
843: evtimer_set(&wp->changes_timer, window_pane_timer_callback, wp);
844: evtimer_add(&wp->changes_timer, &tv);
845: }
846:
847: void
848: window_pane_timer_callback(unused int fd, unused short events, void *data)
849: {
850: struct window_pane *wp = data;
851: struct window *w = wp->window;
852: u_int interval, trigger;
853:
854: interval = options_get_number(&w->options, "c0-change-interval");
855: trigger = options_get_number(&w->options, "c0-change-trigger");
856:
857: if (wp->changes_redraw++ == interval) {
858: wp->flags |= PANE_REDRAW;
859: wp->changes_redraw = 0;
860:
861: }
862:
863: if (trigger == 0 || wp->changes < trigger) {
864: wp->flags |= PANE_REDRAW;
865: wp->flags &= ~PANE_DROP;
866: } else
867: window_pane_timer_start(wp);
868: wp->changes = 0;
1.1 nicm 869: }
870:
1.15 nicm 871: void
1.37 nicm 872: window_pane_read_callback(unused struct bufferevent *bufev, void *data)
873: {
1.46 nicm 874: struct window_pane *wp = data;
875: char *new_data;
876: size_t new_size;
877:
878: new_size = EVBUFFER_LENGTH(wp->event->input) - wp->pipe_off;
879: if (wp->pipe_fd != -1 && new_size > 0) {
880: new_data = EVBUFFER_DATA(wp->event->input);
881: bufferevent_write(wp->pipe_event, new_data, new_size);
882: }
883:
884: input_parse(wp);
1.37 nicm 885:
1.46 nicm 886: wp->pipe_off = EVBUFFER_LENGTH(wp->event->input);
1.60 nicm 887:
888: /*
889: * If we get here, we're not outputting anymore, so set the silence
890: * flag on the window.
891: */
892: wp->window->flags |= WINDOW_SILENCE;
893: if (gettimeofday(&wp->window->silence_timer, NULL) != 0)
894: fatal("gettimeofday failed.");
1.37 nicm 895: }
896:
897: void
898: window_pane_error_callback(
899: unused struct bufferevent *bufev, unused short what, void *data)
900: {
901: struct window_pane *wp = data;
902:
1.39 nicm 903: server_destroy_pane(wp);
1.37 nicm 904: }
905:
906: void
1.1 nicm 907: window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
908: {
909: if (sx == wp->sx && sy == wp->sy)
1.15 nicm 910: return;
1.1 nicm 911: wp->sx = sx;
912: wp->sy = sy;
913:
1.89 nicm 914: screen_resize(&wp->base, sx, sy, wp->saved_grid == NULL);
1.1 nicm 915: if (wp->mode != NULL)
916: wp->mode->resize(wp, sx, sy);
1.44 nicm 917: }
918:
919: /*
920: * Enter alternative screen mode. A copy of the visible screen is saved and the
921: * history is not updated
922: */
923: void
1.87 nicm 924: window_pane_alternate_on(struct window_pane *wp, struct grid_cell *gc,
925: int cursor)
1.44 nicm 926: {
927: struct screen *s = &wp->base;
928: u_int sx, sy;
929:
930: if (wp->saved_grid != NULL)
931: return;
932: if (!options_get_number(&wp->window->options, "alternate-screen"))
933: return;
934: sx = screen_size_x(s);
935: sy = screen_size_y(s);
936:
937: wp->saved_grid = grid_create(sx, sy, 0);
938: grid_duplicate_lines(wp->saved_grid, 0, s->grid, screen_hsize(s), sy);
1.87 nicm 939: if (cursor) {
940: wp->saved_cx = s->cx;
941: wp->saved_cy = s->cy;
942: }
1.44 nicm 943: memcpy(&wp->saved_cell, gc, sizeof wp->saved_cell);
944:
945: grid_view_clear(s->grid, 0, 0, sx, sy);
946:
947: wp->base.grid->flags &= ~GRID_HISTORY;
948:
949: wp->flags |= PANE_REDRAW;
950: }
951:
952: /* Exit alternate screen mode and restore the copied grid. */
953: void
1.87 nicm 954: window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc,
955: int cursor)
1.44 nicm 956: {
957: struct screen *s = &wp->base;
958: u_int sx, sy;
959:
960: if (wp->saved_grid == NULL)
961: return;
962: if (!options_get_number(&wp->window->options, "alternate-screen"))
963: return;
964: sx = screen_size_x(s);
965: sy = screen_size_y(s);
966:
967: /*
968: * If the current size is bigger, temporarily resize to the old size
969: * before copying back.
970: */
971: if (sy > wp->saved_grid->sy)
1.89 nicm 972: screen_resize(s, sx, wp->saved_grid->sy, 1);
1.44 nicm 973:
974: /* Restore the grid, cursor position and cell. */
975: grid_duplicate_lines(s->grid, screen_hsize(s), wp->saved_grid, 0, sy);
1.87 nicm 976: if (cursor)
977: s->cx = wp->saved_cx;
1.44 nicm 978: if (s->cx > screen_size_x(s) - 1)
979: s->cx = screen_size_x(s) - 1;
1.87 nicm 980: if (cursor)
981: s->cy = wp->saved_cy;
1.44 nicm 982: if (s->cy > screen_size_y(s) - 1)
983: s->cy = screen_size_y(s) - 1;
984: memcpy(gc, &wp->saved_cell, sizeof *gc);
985:
986: /*
987: * Turn history back on (so resize can use it) and then resize back to
988: * the current size.
989: */
990: wp->base.grid->flags |= GRID_HISTORY;
1.89 nicm 991: if (sy > wp->saved_grid->sy || sx != wp->saved_grid->sx)
992: screen_resize(s, sx, sy, 1);
1.44 nicm 993:
994: grid_destroy(wp->saved_grid);
995: wp->saved_grid = NULL;
996:
997: wp->flags |= PANE_REDRAW;
1.1 nicm 998: }
999:
1000: int
1001: window_pane_set_mode(struct window_pane *wp, const struct window_mode *mode)
1002: {
1003: struct screen *s;
1004:
1.15 nicm 1005: if (wp->mode != NULL)
1.1 nicm 1006: return (1);
1007: wp->mode = mode;
1008:
1009: if ((s = wp->mode->init(wp)) != NULL)
1010: wp->screen = s;
1.34 nicm 1011: wp->flags |= PANE_REDRAW;
1.1 nicm 1012: return (0);
1013: }
1014:
1015: void
1016: window_pane_reset_mode(struct window_pane *wp)
1017: {
1018: if (wp->mode == NULL)
1019: return;
1020:
1021: wp->mode->free(wp);
1022: wp->mode = NULL;
1023:
1024: wp->screen = &wp->base;
1.34 nicm 1025: wp->flags |= PANE_REDRAW;
1.1 nicm 1026: }
1027:
1028: void
1.51 nicm 1029: window_pane_key(struct window_pane *wp, struct session *sess, int key)
1.1 nicm 1030: {
1.27 nicm 1031: struct window_pane *wp2;
1032:
1.30 nicm 1033: if (!window_pane_visible(wp))
1.3 nicm 1034: return;
1035:
1.1 nicm 1036: if (wp->mode != NULL) {
1037: if (wp->mode->key != NULL)
1.51 nicm 1038: wp->mode->key(wp, sess, key);
1.27 nicm 1039: return;
1.30 nicm 1040: }
1.27 nicm 1041:
1.30 nicm 1042: if (wp->fd == -1)
1043: return;
1.27 nicm 1044: input_key(wp, key);
1045: if (options_get_number(&wp->window->options, "synchronize-panes")) {
1046: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1047: if (wp2 == wp || wp2->mode != NULL)
1048: continue;
1049: if (wp2->fd != -1 && window_pane_visible(wp2))
1050: input_key(wp2, key);
1051: }
1052: }
1.1 nicm 1053: }
1054:
1055: void
1056: window_pane_mouse(
1.51 nicm 1057: struct window_pane *wp, struct session *sess, struct mouse_event *m)
1.1 nicm 1058: {
1.30 nicm 1059: if (!window_pane_visible(wp))
1.3 nicm 1060: return;
1061:
1.31 nicm 1062: if (m->x < wp->xoff || m->x >= wp->xoff + wp->sx)
1.1 nicm 1063: return;
1.31 nicm 1064: if (m->y < wp->yoff || m->y >= wp->yoff + wp->sy)
1.1 nicm 1065: return;
1.31 nicm 1066: m->x -= wp->xoff;
1067: m->y -= wp->yoff;
1.1 nicm 1068:
1069: if (wp->mode != NULL) {
1.65 nicm 1070: if (wp->mode->mouse != NULL &&
1071: options_get_number(&wp->window->options, "mode-mouse"))
1.51 nicm 1072: wp->mode->mouse(wp, sess, m);
1.30 nicm 1073: } else if (wp->fd != -1)
1.86 nicm 1074: input_mouse(wp, sess, m);
1.10 nicm 1075: }
1076:
1077: int
1078: window_pane_visible(struct window_pane *wp)
1079: {
1080: struct window *w = wp->window;
1081:
1.93 ! nicm 1082: if (wp->layout_cell == NULL)
! 1083: return (0);
1.10 nicm 1084: if (wp->xoff >= w->sx || wp->yoff >= w->sy)
1085: return (0);
1086: if (wp->xoff + wp->sx > w->sx || wp->yoff + wp->sy > w->sy)
1087: return (0);
1088: return (1);
1.1 nicm 1089: }
1090:
1091: char *
1.5 nicm 1092: window_pane_search(struct window_pane *wp, const char *searchstr, u_int *lineno)
1.1 nicm 1093: {
1.4 nicm 1094: struct screen *s = &wp->base;
1.5 nicm 1095: char *newsearchstr, *line, *msg;
1.4 nicm 1096: u_int i;
1097:
1.5 nicm 1098: msg = NULL;
1099: xasprintf(&newsearchstr, "*%s*", searchstr);
1100:
1.4 nicm 1101: for (i = 0; i < screen_size_y(s); i++) {
1102: line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
1.5 nicm 1103: if (fnmatch(newsearchstr, line, 0) == 0) {
1104: msg = line;
1105: if (lineno != NULL)
1106: *lineno = i;
1107: break;
1108: }
1.82 nicm 1109: free(line);
1.4 nicm 1110: }
1.5 nicm 1111:
1.82 nicm 1112: free(newsearchstr);
1.5 nicm 1113: return (msg);
1.45 nicm 1114: }
1115:
1116: /* Find the pane directly above another. */
1117: struct window_pane *
1118: window_pane_find_up(struct window_pane *wp)
1119: {
1120: struct window_pane *wp2;
1121: u_int left, top;
1122:
1123: if (wp == NULL || !window_pane_visible(wp))
1124: return (NULL);
1125:
1126: top = wp->yoff;
1127: if (top == 0)
1128: top = wp->window->sy + 1;
1129: left = wp->xoff;
1130:
1131: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1132: if (!window_pane_visible(wp2))
1133: continue;
1134: if (wp2->yoff + wp2->sy + 1 != top)
1135: continue;
1136: if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
1137: return (wp2);
1138: }
1139: return (NULL);
1140: }
1141:
1142: /* Find the pane directly below another. */
1143: struct window_pane *
1144: window_pane_find_down(struct window_pane *wp)
1145: {
1146: struct window_pane *wp2;
1147: u_int left, bottom;
1148:
1149: if (wp == NULL || !window_pane_visible(wp))
1150: return (NULL);
1151:
1152: bottom = wp->yoff + wp->sy + 1;
1153: if (bottom >= wp->window->sy)
1154: bottom = 0;
1155: left = wp->xoff;
1156:
1157: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1158: if (!window_pane_visible(wp2))
1159: continue;
1160: if (wp2->yoff != bottom)
1161: continue;
1162: if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
1163: return (wp2);
1164: }
1165: return (NULL);
1166: }
1167:
1168: /*
1169: * Find the pane directly to the left of another, adjacent to the left side and
1170: * containing the top edge.
1171: */
1172: struct window_pane *
1173: window_pane_find_left(struct window_pane *wp)
1174: {
1175: struct window_pane *wp2;
1176: u_int left, top;
1177:
1178: if (wp == NULL || !window_pane_visible(wp))
1179: return (NULL);
1180:
1181: left = wp->xoff;
1182: if (left == 0)
1183: left = wp->window->sx + 1;
1184: top = wp->yoff;
1185:
1186: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1187: if (!window_pane_visible(wp2))
1188: continue;
1189: if (wp2->xoff + wp2->sx + 1 != left)
1190: continue;
1191: if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
1192: return (wp2);
1193: }
1194: return (NULL);
1195: }
1196:
1197: /*
1198: * Find the pane directly to the right of another, that is adjacent to the
1199: * right edge and including the top edge.
1200: */
1201: struct window_pane *
1202: window_pane_find_right(struct window_pane *wp)
1203: {
1204: struct window_pane *wp2;
1205: u_int right, top;
1206:
1207: if (wp == NULL || !window_pane_visible(wp))
1208: return (NULL);
1209:
1210: right = wp->xoff + wp->sx + 1;
1211: if (right >= wp->window->sx)
1212: right = 0;
1213: top = wp->yoff;
1214:
1215: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1216: if (!window_pane_visible(wp2))
1217: continue;
1218: if (wp2->xoff != right)
1219: continue;
1220: if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
1221: return (wp2);
1222: }
1223: return (NULL);
1.81 nicm 1224: }
1225:
1226: /* Clear alert flags for a winlink */
1227: void
1228: winlink_clear_flags(struct winlink *wl)
1229: {
1230: struct winlink *wm;
1231: struct session *s;
1232: struct window *w;
1233: u_int i;
1234:
1235: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
1236: if ((w = ARRAY_ITEM(&windows, i)) == NULL)
1237: continue;
1238:
1239: RB_FOREACH(s, sessions, &sessions) {
1240: if ((wm = session_has(s, w)) == NULL)
1241: continue;
1242:
1243: if (wm->window != wl->window)
1244: continue;
1245: if ((wm->flags & WINLINK_ALERTFLAGS) == 0)
1246: continue;
1247:
1248: wm->flags &= ~WINLINK_ALERTFLAGS;
1249: server_status_session(s);
1250: }
1251: }
1.83 nicm 1252: }
1253:
1254: /* Set the grid_cell with fg/bg/attr information when window is in a mode. */
1255: void
1256: window_mode_attrs(struct grid_cell *gc, struct options *oo)
1257: {
1.85 nicm 1258: memcpy(gc, &grid_default_cell, sizeof *gc);
1.83 nicm 1259: colour_set_fg(gc, options_get_number(oo, "mode-fg"));
1260: colour_set_bg(gc, options_get_number(oo, "mode-bg"));
1261: gc->attr |= options_get_number(oo, "mode-attr");
1.1 nicm 1262: }
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