Annotation of src/usr.bin/tmux/window.c, Revision 1.64
1.64 ! nicm 1: /* $OpenBSD: window.c,v 1.63 2011/01/25 22:31:50 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;
! 61: u_int next_window_pane;
! 62:
1.37 nicm 63: void window_pane_read_callback(struct bufferevent *, void *);
64: void window_pane_error_callback(struct bufferevent *, short, void *);
65:
1.1 nicm 66: RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
67:
68: int
69: winlink_cmp(struct winlink *wl1, struct winlink *wl2)
70: {
71: return (wl1->idx - wl2->idx);
1.12 nicm 72: }
73:
1.64 ! nicm 74: RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
! 75:
! 76: int
! 77: window_pane_cmp(struct window_pane *wp1, struct window_pane *wp2)
! 78: {
! 79: return (wp1->id - wp2->id);
! 80: }
! 81:
1.12 nicm 82: struct winlink *
83: winlink_find_by_window(struct winlinks *wwl, struct window *w)
84: {
85: struct winlink *wl;
86:
87: RB_FOREACH(wl, winlinks, wwl) {
88: if (wl->window == w)
89: return (wl);
90: }
91:
92: return (NULL);
1.1 nicm 93: }
94:
95: struct winlink *
96: winlink_find_by_index(struct winlinks *wwl, int idx)
97: {
98: struct winlink wl;
99:
100: if (idx < 0)
101: fatalx("bad index");
102:
103: wl.idx = idx;
104: return (RB_FIND(winlinks, wwl, &wl));
105: }
106:
107: int
1.22 nicm 108: winlink_next_index(struct winlinks *wwl, int idx)
1.1 nicm 109: {
1.22 nicm 110: int i;
1.1 nicm 111:
1.22 nicm 112: i = idx;
113: do {
1.1 nicm 114: if (winlink_find_by_index(wwl, i) == NULL)
115: return (i);
1.22 nicm 116: if (i == INT_MAX)
117: i = 0;
118: else
119: i++;
120: } while (i != idx);
121: return (-1);
1.1 nicm 122: }
123:
124: u_int
125: winlink_count(struct winlinks *wwl)
126: {
127: struct winlink *wl;
128: u_int n;
129:
130: n = 0;
131: RB_FOREACH(wl, winlinks, wwl)
132: n++;
133:
134: return (n);
135: }
136:
137: struct winlink *
1.63 nicm 138: winlink_add(struct winlinks *wwl, int idx)
1.1 nicm 139: {
140: struct winlink *wl;
141:
1.22 nicm 142: if (idx < 0) {
143: if ((idx = winlink_next_index(wwl, -idx - 1)) == -1)
144: return (NULL);
145: } else if (winlink_find_by_index(wwl, idx) != NULL)
1.1 nicm 146: return (NULL);
147:
148: wl = xcalloc(1, sizeof *wl);
149: wl->idx = idx;
150: RB_INSERT(winlinks, wwl, wl);
151:
1.63 nicm 152: return (wl);
153: }
154:
155: void
156: winlink_set_window(struct winlink *wl, struct window *w)
157: {
158: wl->window = w;
1.1 nicm 159: w->references++;
160: }
161:
162: void
163: winlink_remove(struct winlinks *wwl, struct winlink *wl)
164: {
165: struct window *w = wl->window;
166:
167: RB_REMOVE(winlinks, wwl, wl);
1.40 nicm 168: if (wl->status_text != NULL)
169: xfree(wl->status_text);
1.1 nicm 170: xfree(wl);
171:
1.63 nicm 172: if (w != NULL) {
173: if (w->references == 0)
174: fatal("bad reference count");
175: w->references--;
176: if (w->references == 0)
177: window_destroy(w);
178: }
1.1 nicm 179: }
180:
181: struct winlink *
1.41 nicm 182: winlink_next(struct winlink *wl)
1.1 nicm 183: {
184: return (RB_NEXT(winlinks, wwl, wl));
185: }
186:
187: struct winlink *
1.41 nicm 188: winlink_previous(struct winlink *wl)
1.1 nicm 189: {
190: return (RB_PREV(winlinks, wwl, wl));
1.52 nicm 191: }
192:
193: struct winlink *
1.53 nicm 194: winlink_next_by_number(struct winlink *wl, struct session *s, int n)
1.52 nicm 195: {
196: for (; n > 0; n--) {
197: if ((wl = RB_NEXT(winlinks, wwl, wl)) == NULL)
1.53 nicm 198: wl = RB_MIN(winlinks, &s->windows);
1.52 nicm 199: }
200:
201: return (wl);
202: }
203:
204: struct winlink *
1.53 nicm 205: winlink_previous_by_number(struct winlink *wl, struct session *s, int n)
1.52 nicm 206: {
207: for (; n > 0; n--) {
208: if ((wl = RB_PREV(winlinks, wwl, wl)) == NULL)
1.53 nicm 209: wl = RB_MAX(winlinks, &s->windows);
1.52 nicm 210: }
211:
212: return (wl);
1.1 nicm 213: }
214:
215: void
216: winlink_stack_push(struct winlink_stack *stack, struct winlink *wl)
217: {
218: if (wl == NULL)
219: return;
220:
221: winlink_stack_remove(stack, wl);
1.28 nicm 222: TAILQ_INSERT_HEAD(stack, wl, sentry);
1.1 nicm 223: }
224:
225: void
226: winlink_stack_remove(struct winlink_stack *stack, struct winlink *wl)
227: {
228: struct winlink *wl2;
229:
230: if (wl == NULL)
231: return;
1.42 nicm 232:
1.28 nicm 233: TAILQ_FOREACH(wl2, stack, sentry) {
1.1 nicm 234: if (wl2 == wl) {
1.28 nicm 235: TAILQ_REMOVE(stack, wl, sentry);
1.1 nicm 236: return;
237: }
238: }
239: }
240:
241: int
242: window_index(struct window *s, u_int *i)
243: {
244: for (*i = 0; *i < ARRAY_LENGTH(&windows); (*i)++) {
245: if (s == ARRAY_ITEM(&windows, *i))
246: return (0);
247: }
248: return (-1);
249: }
250:
251: struct window *
252: window_create1(u_int sx, u_int sy)
253: {
254: struct window *w;
255: u_int i;
256:
1.38 nicm 257: w = xcalloc(1, sizeof *w);
1.1 nicm 258: w->name = NULL;
259: w->flags = 0;
260:
261: TAILQ_INIT(&w->panes);
262: w->active = NULL;
1.14 nicm 263:
1.17 nicm 264: w->lastlayout = -1;
1.14 nicm 265: w->layout_root = NULL;
1.42 nicm 266:
1.1 nicm 267: w->sx = sx;
268: w->sy = sy;
269:
1.38 nicm 270: queue_window_name(w);
271:
1.7 nicm 272: options_init(&w->options, &global_w_options);
1.1 nicm 273:
274: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
275: if (ARRAY_ITEM(&windows, i) == NULL) {
276: ARRAY_SET(&windows, i, w);
277: break;
278: }
279: }
280: if (i == ARRAY_LENGTH(&windows))
281: ARRAY_ADD(&windows, w);
282: w->references = 0;
283:
284: return (w);
285: }
286:
287: struct window *
1.23 nicm 288: window_create(const char *name, const char *cmd, const char *shell,
289: const char *cwd, struct environ *env, struct termios *tio,
290: u_int sx, u_int sy, u_int hlimit,char **cause)
1.1 nicm 291: {
1.14 nicm 292: struct window *w;
293: struct window_pane *wp;
1.1 nicm 294:
295: w = window_create1(sx, sy);
1.16 nicm 296: wp = window_add_pane(w, hlimit);
1.14 nicm 297: layout_init(w);
1.23 nicm 298: if (window_pane_spawn(wp, cmd, shell, cwd, env, tio, cause) != 0) {
1.1 nicm 299: window_destroy(w);
300: return (NULL);
301: }
302: w->active = TAILQ_FIRST(&w->panes);
303: if (name != NULL) {
304: w->name = xstrdup(name);
305: options_set_number(&w->options, "automatic-rename", 0);
306: } else
307: w->name = default_window_name(w);
308: return (w);
309: }
310:
311: void
312: window_destroy(struct window *w)
313: {
314: u_int i;
315:
316: if (window_index(w, &i) != 0)
317: fatalx("index not found");
318: ARRAY_SET(&windows, i, NULL);
319: while (!ARRAY_EMPTY(&windows) && ARRAY_LAST(&windows) == NULL)
320: ARRAY_TRUNC(&windows, 1);
321:
1.14 nicm 322: if (w->layout_root != NULL)
323: layout_free(w);
324:
1.38 nicm 325: evtimer_del(&w->name_timer);
326:
1.1 nicm 327: options_free(&w->options);
328:
329: window_destroy_panes(w);
330:
331: if (w->name != NULL)
332: xfree(w->name);
333: xfree(w);
334: }
335:
1.15 nicm 336: void
1.1 nicm 337: window_resize(struct window *w, u_int sx, u_int sy)
338: {
339: w->sx = sx;
340: w->sy = sy;
341: }
342:
343: void
344: window_set_active_pane(struct window *w, struct window_pane *wp)
345: {
1.59 nicm 346: if (wp == w->active)
347: return;
1.58 nicm 348: w->last = w->active;
1.1 nicm 349: w->active = wp;
1.10 nicm 350: while (!window_pane_visible(w->active)) {
1.1 nicm 351: w->active = TAILQ_PREV(w->active, window_panes, entry);
1.10 nicm 352: if (w->active == NULL)
353: w->active = TAILQ_LAST(&w->panes, window_panes);
354: if (w->active == wp)
355: return;
1.29 nicm 356: }
357: }
358:
359: void
360: window_set_active_at(struct window *w, u_int x, u_int y)
361: {
362: struct window_pane *wp;
363:
364: TAILQ_FOREACH(wp, &w->panes, entry) {
1.59 nicm 365: if (wp == w->active || !window_pane_visible(wp))
1.29 nicm 366: continue;
367: if (x < wp->xoff || x >= wp->xoff + wp->sx)
368: continue;
369: if (y < wp->yoff || y >= wp->yoff + wp->sy)
370: continue;
371: window_set_active_pane(w, wp);
372: break;
1.10 nicm 373: }
1.1 nicm 374: }
375:
376: struct window_pane *
1.16 nicm 377: window_add_pane(struct window *w, u_int hlimit)
1.1 nicm 378: {
379: struct window_pane *wp;
380:
1.14 nicm 381: wp = window_pane_create(w, w->sx, w->sy, hlimit);
1.1 nicm 382: if (TAILQ_EMPTY(&w->panes))
383: TAILQ_INSERT_HEAD(&w->panes, wp, entry);
384: else
385: TAILQ_INSERT_AFTER(&w->panes, w->active, wp, entry);
386: return (wp);
387: }
388:
389: void
390: window_remove_pane(struct window *w, struct window_pane *wp)
391: {
1.57 nicm 392: if (wp == w->active) {
1.58 nicm 393: w->active = w->last;
394: w->last = NULL;
395: if (w->active == NULL) {
396: w->active = TAILQ_PREV(wp, window_panes, entry);
397: if (w->active == NULL)
398: w->active = TAILQ_NEXT(wp, entry);
399: }
400: } else if (wp == w->last)
401: w->last = NULL;
1.1 nicm 402:
403: TAILQ_REMOVE(&w->panes, wp, entry);
404: window_pane_destroy(wp);
405: }
406:
407: struct window_pane *
408: window_pane_at_index(struct window *w, u_int idx)
409: {
410: struct window_pane *wp;
411: u_int n;
412:
413: n = 0;
414: TAILQ_FOREACH(wp, &w->panes, entry) {
415: if (n == idx)
416: return (wp);
417: n++;
418: }
419: return (NULL);
1.53 nicm 420: }
421:
422: struct window_pane *
423: window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n)
424: {
425: for (; n > 0; n--) {
426: if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
427: wp = TAILQ_FIRST(&w->panes);
428: }
429:
430: return (wp);
431: }
432:
433: struct window_pane *
434: window_pane_previous_by_number(struct window *w, struct window_pane *wp,
435: u_int n)
436: {
437: for (; n > 0; n--) {
438: if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL)
439: wp = TAILQ_LAST(&w->panes, window_panes);
440: }
441:
442: return (wp);
1.13 nicm 443: }
444:
445: u_int
446: window_pane_index(struct window *w, struct window_pane *wp)
447: {
448: struct window_pane *wq;
449: u_int n;
450:
451: n = 0;
452: TAILQ_FOREACH(wq, &w->panes, entry) {
453: if (wp == wq)
454: break;
455: n++;
456: }
457: return (n);
1.1 nicm 458: }
459:
460: u_int
461: window_count_panes(struct window *w)
462: {
463: struct window_pane *wp;
464: u_int n;
465:
466: n = 0;
467: TAILQ_FOREACH(wp, &w->panes, entry)
468: n++;
469: return (n);
470: }
471:
472: void
473: window_destroy_panes(struct window *w)
474: {
475: struct window_pane *wp;
476:
477: while (!TAILQ_EMPTY(&w->panes)) {
478: wp = TAILQ_FIRST(&w->panes);
479: TAILQ_REMOVE(&w->panes, wp, entry);
480: window_pane_destroy(wp);
481: }
1.61 nicm 482: }
483:
484: /* Return list of printable window flag symbols. No flags is just a space. */
485: char *
486: window_printable_flags(struct session *s, struct winlink *wl)
487: {
488: char flags[BUFSIZ];
489: int pos;
490:
491: pos = 0;
492: if (wl->flags & WINLINK_ACTIVITY)
493: flags[pos++] = '#';
494: if (wl->flags & WINLINK_BELL)
495: flags[pos++] = '!';
496: if (wl->flags & WINLINK_CONTENT)
497: flags[pos++] = '+';
498: if (wl->flags & WINLINK_SILENCE)
499: flags[pos++] = '~';
500: if (wl == s->curw)
501: flags[pos++] = '*';
502: if (wl == TAILQ_FIRST(&s->lastw))
503: flags[pos++] = '-';
504: if (pos == 0)
505: flags[pos++] = ' ';
506: flags[pos] = '\0';
507: return (xstrdup(flags));
1.1 nicm 508: }
509:
1.64 ! nicm 510: /* Find pane in global tree by id. */
! 511: struct window_pane *
! 512: window_pane_find_by_id(u_int id)
! 513: {
! 514: struct window_pane wp;
! 515:
! 516: wp.id = id;
! 517: return (RB_FIND(window_pane_tree, &all_window_panes, &wp));
! 518: }
! 519:
1.1 nicm 520: struct window_pane *
521: window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
522: {
523: struct window_pane *wp;
524:
525: wp = xcalloc(1, sizeof *wp);
526: wp->window = w;
527:
1.64 ! nicm 528: wp->id = next_window_pane++;
! 529: RB_INSERT(window_pane_tree, &all_window_panes, wp);
! 530:
1.1 nicm 531: wp->cmd = NULL;
1.23 nicm 532: wp->shell = NULL;
1.1 nicm 533: wp->cwd = NULL;
534:
535: wp->fd = -1;
1.37 nicm 536: wp->event = NULL;
1.1 nicm 537:
538: wp->mode = NULL;
1.14 nicm 539:
540: wp->layout_cell = NULL;
1.1 nicm 541:
542: wp->xoff = 0;
1.42 nicm 543: wp->yoff = 0;
1.1 nicm 544:
545: wp->sx = sx;
546: wp->sy = sy;
547:
1.32 nicm 548: wp->pipe_fd = -1;
549: wp->pipe_off = 0;
1.36 nicm 550: wp->pipe_event = NULL;
1.32 nicm 551:
1.9 nicm 552: wp->saved_grid = NULL;
553:
1.1 nicm 554: screen_init(&wp->base, sx, sy, hlimit);
555: wp->screen = &wp->base;
556:
557: input_init(wp);
558:
559: return (wp);
560: }
561:
562: void
563: window_pane_destroy(struct window_pane *wp)
564: {
1.55 nicm 565: window_pane_reset_mode(wp);
566:
1.37 nicm 567: if (wp->fd != -1) {
1.1 nicm 568: close(wp->fd);
1.37 nicm 569: bufferevent_free(wp->event);
570: }
1.1 nicm 571:
572: input_free(wp);
573:
574: screen_free(&wp->base);
1.9 nicm 575: if (wp->saved_grid != NULL)
576: grid_destroy(wp->saved_grid);
1.1 nicm 577:
1.32 nicm 578: if (wp->pipe_fd != -1) {
579: close(wp->pipe_fd);
1.36 nicm 580: bufferevent_free(wp->pipe_event);
1.32 nicm 581: }
582:
1.64 ! nicm 583: RB_REMOVE(window_pane_tree, &all_window_panes, wp);
! 584:
1.1 nicm 585: if (wp->cwd != NULL)
586: xfree(wp->cwd);
1.23 nicm 587: if (wp->shell != NULL)
588: xfree(wp->shell);
1.1 nicm 589: if (wp->cmd != NULL)
590: xfree(wp->cmd);
591: xfree(wp);
592: }
593:
594: int
1.23 nicm 595: window_pane_spawn(struct window_pane *wp, const char *cmd, const char *shell,
1.21 nicm 596: const char *cwd, struct environ *env, struct termios *tio, char **cause)
1.1 nicm 597: {
1.47 nicm 598: struct winsize ws;
1.64 ! nicm 599: char *argv0, paneid[16];
1.47 nicm 600: const char *ptr;
601: struct termios tio2;
1.1 nicm 602:
1.37 nicm 603: if (wp->fd != -1) {
1.1 nicm 604: close(wp->fd);
1.37 nicm 605: bufferevent_free(wp->event);
606: }
1.1 nicm 607: if (cmd != NULL) {
608: if (wp->cmd != NULL)
609: xfree(wp->cmd);
610: wp->cmd = xstrdup(cmd);
611: }
1.23 nicm 612: if (shell != NULL) {
613: if (wp->shell != NULL)
614: xfree(wp->shell);
615: wp->shell = xstrdup(shell);
616: }
1.1 nicm 617: if (cwd != NULL) {
618: if (wp->cwd != NULL)
619: xfree(wp->cwd);
620: wp->cwd = xstrdup(cwd);
621: }
622:
623: memset(&ws, 0, sizeof ws);
624: ws.ws_col = screen_size_x(&wp->base);
625: ws.ws_row = screen_size_y(&wp->base);
626:
1.42 nicm 627: switch (wp->pid = forkpty(&wp->fd, wp->tty, NULL, &ws)) {
1.1 nicm 628: case -1:
629: wp->fd = -1;
630: xasprintf(cause, "%s: %s", cmd, strerror(errno));
631: return (-1);
632: case 0:
633: if (chdir(wp->cwd) != 0)
634: chdir("/");
1.25 nicm 635:
636: if (tcgetattr(STDIN_FILENO, &tio2) != 0)
637: fatal("tcgetattr failed");
638: if (tio != NULL)
639: memcpy(tio2.c_cc, tio->c_cc, sizeof tio2.c_cc);
640: tio2.c_cc[VERASE] = '\177';
641: if (tcsetattr(STDIN_FILENO, TCSANOW, &tio2) != 0)
642: fatal("tcgetattr failed");
1.18 nicm 643:
1.56 nicm 644: closefrom(STDERR_FILENO + 1);
645:
1.64 ! nicm 646: xsnprintf(paneid, sizeof paneid, "%%%u", wp->id);
! 647: environ_set(env, "TMUX_PANE", paneid);
1.47 nicm 648: environ_push(env);
1.18 nicm 649:
1.54 nicm 650: clear_signals(1);
1.1 nicm 651: log_close();
652:
1.8 nicm 653: if (*wp->cmd != '\0') {
1.24 nicm 654: /* Set SHELL but only if it is currently not useful. */
655: shell = getenv("SHELL");
656: if (shell == NULL || *shell == '\0' || areshell(shell))
657: setenv("SHELL", wp->shell, 1);
658:
1.8 nicm 659: execl(_PATH_BSHELL, "sh", "-c", wp->cmd, (char *) NULL);
660: fatal("execl failed");
661: }
662:
663: /* No command; fork a login shell. */
1.23 nicm 664: ptr = strrchr(wp->shell, '/');
665: if (ptr != NULL && *(ptr + 1) != '\0')
1.8 nicm 666: xasprintf(&argv0, "-%s", ptr + 1);
667: else
1.23 nicm 668: xasprintf(&argv0, "-%s", wp->shell);
1.24 nicm 669: setenv("SHELL", wp->shell, 1);
1.23 nicm 670: execl(wp->shell, argv0, (char *) NULL);
1.1 nicm 671: fatal("execl failed");
672: }
673:
1.62 nicm 674: setblocking(wp->fd, 0);
675:
1.37 nicm 676: wp->event = bufferevent_new(wp->fd,
677: window_pane_read_callback, NULL, window_pane_error_callback, wp);
678: bufferevent_enable(wp->event, EV_READ|EV_WRITE);
1.1 nicm 679:
680: return (0);
681: }
682:
1.41 nicm 683: /* ARGSUSED */
1.15 nicm 684: void
1.37 nicm 685: window_pane_read_callback(unused struct bufferevent *bufev, void *data)
686: {
1.46 nicm 687: struct window_pane *wp = data;
688: char *new_data;
689: size_t new_size;
690:
691: new_size = EVBUFFER_LENGTH(wp->event->input) - wp->pipe_off;
692: if (wp->pipe_fd != -1 && new_size > 0) {
693: new_data = EVBUFFER_DATA(wp->event->input);
694: bufferevent_write(wp->pipe_event, new_data, new_size);
695: }
696:
697: input_parse(wp);
1.37 nicm 698:
1.46 nicm 699: wp->pipe_off = EVBUFFER_LENGTH(wp->event->input);
1.60 nicm 700:
701: /*
702: * If we get here, we're not outputting anymore, so set the silence
703: * flag on the window.
704: */
705: wp->window->flags |= WINDOW_SILENCE;
706: if (gettimeofday(&wp->window->silence_timer, NULL) != 0)
707: fatal("gettimeofday failed.");
1.37 nicm 708: }
709:
1.41 nicm 710: /* ARGSUSED */
1.37 nicm 711: void
712: window_pane_error_callback(
713: unused struct bufferevent *bufev, unused short what, void *data)
714: {
715: struct window_pane *wp = data;
716:
1.39 nicm 717: server_destroy_pane(wp);
1.37 nicm 718: }
719:
720: void
1.1 nicm 721: window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
722: {
723: struct winsize ws;
724:
725: if (sx == wp->sx && sy == wp->sy)
1.15 nicm 726: return;
1.1 nicm 727: wp->sx = sx;
728: wp->sy = sy;
729:
730: memset(&ws, 0, sizeof ws);
731: ws.ws_col = sx;
732: ws.ws_row = sy;
733:
734: screen_resize(&wp->base, sx, sy);
735: if (wp->mode != NULL)
736: wp->mode->resize(wp, sx, sy);
737:
738: if (wp->fd != -1 && ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
739: fatal("ioctl failed");
1.44 nicm 740: }
741:
742: /*
743: * Enter alternative screen mode. A copy of the visible screen is saved and the
744: * history is not updated
745: */
746: void
747: window_pane_alternate_on(struct window_pane *wp, struct grid_cell *gc)
748: {
749: struct screen *s = &wp->base;
750: u_int sx, sy;
751:
752: if (wp->saved_grid != NULL)
753: return;
754: if (!options_get_number(&wp->window->options, "alternate-screen"))
755: return;
756: sx = screen_size_x(s);
757: sy = screen_size_y(s);
758:
759: wp->saved_grid = grid_create(sx, sy, 0);
760: grid_duplicate_lines(wp->saved_grid, 0, s->grid, screen_hsize(s), sy);
761: wp->saved_cx = s->cx;
762: wp->saved_cy = s->cy;
763: memcpy(&wp->saved_cell, gc, sizeof wp->saved_cell);
764:
765: grid_view_clear(s->grid, 0, 0, sx, sy);
766:
767: wp->base.grid->flags &= ~GRID_HISTORY;
768:
769: wp->flags |= PANE_REDRAW;
770: }
771:
772: /* Exit alternate screen mode and restore the copied grid. */
773: void
774: window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc)
775: {
776: struct screen *s = &wp->base;
777: u_int sx, sy;
778:
779: if (wp->saved_grid == NULL)
780: return;
781: if (!options_get_number(&wp->window->options, "alternate-screen"))
782: return;
783: sx = screen_size_x(s);
784: sy = screen_size_y(s);
785:
786: /*
787: * If the current size is bigger, temporarily resize to the old size
788: * before copying back.
789: */
790: if (sy > wp->saved_grid->sy)
791: screen_resize(s, sx, wp->saved_grid->sy);
792:
793: /* Restore the grid, cursor position and cell. */
794: grid_duplicate_lines(s->grid, screen_hsize(s), wp->saved_grid, 0, sy);
795: s->cx = wp->saved_cx;
796: if (s->cx > screen_size_x(s) - 1)
797: s->cx = screen_size_x(s) - 1;
798: s->cy = wp->saved_cy;
799: if (s->cy > screen_size_y(s) - 1)
800: s->cy = screen_size_y(s) - 1;
801: memcpy(gc, &wp->saved_cell, sizeof *gc);
802:
803: /*
804: * Turn history back on (so resize can use it) and then resize back to
805: * the current size.
806: */
807: wp->base.grid->flags |= GRID_HISTORY;
808: if (sy > wp->saved_grid->sy)
809: screen_resize(s, sx, sy);
810:
811: grid_destroy(wp->saved_grid);
812: wp->saved_grid = NULL;
813:
814: wp->flags |= PANE_REDRAW;
1.1 nicm 815: }
816:
817: int
818: window_pane_set_mode(struct window_pane *wp, const struct window_mode *mode)
819: {
820: struct screen *s;
821:
1.15 nicm 822: if (wp->mode != NULL)
1.1 nicm 823: return (1);
824: wp->mode = mode;
825:
826: if ((s = wp->mode->init(wp)) != NULL)
827: wp->screen = s;
1.34 nicm 828: wp->flags |= PANE_REDRAW;
1.1 nicm 829: return (0);
830: }
831:
832: void
833: window_pane_reset_mode(struct window_pane *wp)
834: {
835: if (wp->mode == NULL)
836: return;
837:
838: wp->mode->free(wp);
839: wp->mode = NULL;
840:
841: wp->screen = &wp->base;
1.34 nicm 842: wp->flags |= PANE_REDRAW;
1.1 nicm 843: }
844:
845: void
1.51 nicm 846: window_pane_key(struct window_pane *wp, struct session *sess, int key)
1.1 nicm 847: {
1.27 nicm 848: struct window_pane *wp2;
849:
1.30 nicm 850: if (!window_pane_visible(wp))
1.3 nicm 851: return;
852:
1.1 nicm 853: if (wp->mode != NULL) {
854: if (wp->mode->key != NULL)
1.51 nicm 855: wp->mode->key(wp, sess, key);
1.27 nicm 856: return;
1.30 nicm 857: }
1.27 nicm 858:
1.30 nicm 859: if (wp->fd == -1)
860: return;
1.27 nicm 861: input_key(wp, key);
862: if (options_get_number(&wp->window->options, "synchronize-panes")) {
863: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
864: if (wp2 == wp || wp2->mode != NULL)
865: continue;
866: if (wp2->fd != -1 && window_pane_visible(wp2))
867: input_key(wp2, key);
868: }
869: }
1.1 nicm 870: }
871:
872: void
873: window_pane_mouse(
1.51 nicm 874: struct window_pane *wp, struct session *sess, struct mouse_event *m)
1.1 nicm 875: {
1.30 nicm 876: if (!window_pane_visible(wp))
1.3 nicm 877: return;
878:
1.31 nicm 879: if (m->x < wp->xoff || m->x >= wp->xoff + wp->sx)
1.1 nicm 880: return;
1.31 nicm 881: if (m->y < wp->yoff || m->y >= wp->yoff + wp->sy)
1.1 nicm 882: return;
1.31 nicm 883: m->x -= wp->xoff;
884: m->y -= wp->yoff;
1.1 nicm 885:
886: if (wp->mode != NULL) {
887: if (wp->mode->mouse != NULL)
1.51 nicm 888: wp->mode->mouse(wp, sess, m);
1.30 nicm 889: } else if (wp->fd != -1)
1.31 nicm 890: input_mouse(wp, m);
1.10 nicm 891: }
892:
893: int
894: window_pane_visible(struct window_pane *wp)
895: {
896: struct window *w = wp->window;
897:
898: if (wp->xoff >= w->sx || wp->yoff >= w->sy)
899: return (0);
900: if (wp->xoff + wp->sx > w->sx || wp->yoff + wp->sy > w->sy)
901: return (0);
902: return (1);
1.1 nicm 903: }
904:
905: char *
1.5 nicm 906: window_pane_search(struct window_pane *wp, const char *searchstr, u_int *lineno)
1.1 nicm 907: {
1.4 nicm 908: struct screen *s = &wp->base;
1.5 nicm 909: char *newsearchstr, *line, *msg;
1.4 nicm 910: u_int i;
911:
1.5 nicm 912: msg = NULL;
913: xasprintf(&newsearchstr, "*%s*", searchstr);
914:
1.4 nicm 915: for (i = 0; i < screen_size_y(s); i++) {
916: line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
1.5 nicm 917: if (fnmatch(newsearchstr, line, 0) == 0) {
918: msg = line;
919: if (lineno != NULL)
920: *lineno = i;
921: break;
922: }
1.4 nicm 923: xfree(line);
924: }
1.5 nicm 925:
926: xfree(newsearchstr);
927: return (msg);
1.45 nicm 928: }
929:
930: /* Find the pane directly above another. */
931: struct window_pane *
932: window_pane_find_up(struct window_pane *wp)
933: {
934: struct window_pane *wp2;
935: u_int left, top;
936:
937: if (wp == NULL || !window_pane_visible(wp))
938: return (NULL);
939:
940: top = wp->yoff;
941: if (top == 0)
942: top = wp->window->sy + 1;
943: left = wp->xoff;
944:
945: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
946: if (!window_pane_visible(wp2))
947: continue;
948: if (wp2->yoff + wp2->sy + 1 != top)
949: continue;
950: if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
951: return (wp2);
952: }
953: return (NULL);
954: }
955:
956: /* Find the pane directly below another. */
957: struct window_pane *
958: window_pane_find_down(struct window_pane *wp)
959: {
960: struct window_pane *wp2;
961: u_int left, bottom;
962:
963: if (wp == NULL || !window_pane_visible(wp))
964: return (NULL);
965:
966: bottom = wp->yoff + wp->sy + 1;
967: if (bottom >= wp->window->sy)
968: bottom = 0;
969: left = wp->xoff;
970:
971: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
972: if (!window_pane_visible(wp2))
973: continue;
974: if (wp2->yoff != bottom)
975: continue;
976: if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
977: return (wp2);
978: }
979: return (NULL);
980: }
981:
982: /*
983: * Find the pane directly to the left of another, adjacent to the left side and
984: * containing the top edge.
985: */
986: struct window_pane *
987: window_pane_find_left(struct window_pane *wp)
988: {
989: struct window_pane *wp2;
990: u_int left, top;
991:
992: if (wp == NULL || !window_pane_visible(wp))
993: return (NULL);
994:
995: left = wp->xoff;
996: if (left == 0)
997: left = wp->window->sx + 1;
998: top = wp->yoff;
999:
1000: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1001: if (!window_pane_visible(wp2))
1002: continue;
1003: if (wp2->xoff + wp2->sx + 1 != left)
1004: continue;
1005: if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
1006: return (wp2);
1007: }
1008: return (NULL);
1009: }
1010:
1011: /*
1012: * Find the pane directly to the right of another, that is adjacent to the
1013: * right edge and including the top edge.
1014: */
1015: struct window_pane *
1016: window_pane_find_right(struct window_pane *wp)
1017: {
1018: struct window_pane *wp2;
1019: u_int right, top;
1020:
1021: if (wp == NULL || !window_pane_visible(wp))
1022: return (NULL);
1023:
1024: right = wp->xoff + wp->sx + 1;
1025: if (right >= wp->window->sx)
1026: right = 0;
1027: top = wp->yoff;
1028:
1029: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1030: if (!window_pane_visible(wp2))
1031: continue;
1032: if (wp2->xoff != right)
1033: continue;
1034: if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
1035: return (wp2);
1036: }
1037: return (NULL);
1.1 nicm 1038: }
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