Annotation of src/usr.bin/tmux/window.c, Revision 1.58
1.58 ! nicm 1: /* $OpenBSD: window.c,v 1.57 2010/10/23 12:51:51 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:
1.37 nicm 59: void window_pane_read_callback(struct bufferevent *, void *);
60: void window_pane_error_callback(struct bufferevent *, short, void *);
61:
1.1 nicm 62: RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
63:
64: int
65: winlink_cmp(struct winlink *wl1, struct winlink *wl2)
66: {
67: return (wl1->idx - wl2->idx);
1.12 nicm 68: }
69:
70: struct winlink *
71: winlink_find_by_window(struct winlinks *wwl, struct window *w)
72: {
73: struct winlink *wl;
74:
75: RB_FOREACH(wl, winlinks, wwl) {
76: if (wl->window == w)
77: return (wl);
78: }
79:
80: return (NULL);
1.1 nicm 81: }
82:
83: struct winlink *
84: winlink_find_by_index(struct winlinks *wwl, int idx)
85: {
86: struct winlink wl;
87:
88: if (idx < 0)
89: fatalx("bad index");
90:
91: wl.idx = idx;
92: return (RB_FIND(winlinks, wwl, &wl));
93: }
94:
95: int
1.22 nicm 96: winlink_next_index(struct winlinks *wwl, int idx)
1.1 nicm 97: {
1.22 nicm 98: int i;
1.1 nicm 99:
1.22 nicm 100: i = idx;
101: do {
1.1 nicm 102: if (winlink_find_by_index(wwl, i) == NULL)
103: return (i);
1.22 nicm 104: if (i == INT_MAX)
105: i = 0;
106: else
107: i++;
108: } while (i != idx);
109: return (-1);
1.1 nicm 110: }
111:
112: u_int
113: winlink_count(struct winlinks *wwl)
114: {
115: struct winlink *wl;
116: u_int n;
117:
118: n = 0;
119: RB_FOREACH(wl, winlinks, wwl)
120: n++;
121:
122: return (n);
123: }
124:
125: struct winlink *
126: winlink_add(struct winlinks *wwl, struct window *w, int idx)
127: {
128: struct winlink *wl;
129:
1.22 nicm 130: if (idx < 0) {
131: if ((idx = winlink_next_index(wwl, -idx - 1)) == -1)
132: return (NULL);
133: } else if (winlink_find_by_index(wwl, idx) != NULL)
1.1 nicm 134: return (NULL);
135:
136: wl = xcalloc(1, sizeof *wl);
137: wl->idx = idx;
138: wl->window = w;
139: RB_INSERT(winlinks, wwl, wl);
140:
141: w->references++;
142:
143: return (wl);
144: }
145:
146: void
147: winlink_remove(struct winlinks *wwl, struct winlink *wl)
148: {
149: struct window *w = wl->window;
150:
151: RB_REMOVE(winlinks, wwl, wl);
1.40 nicm 152: if (wl->status_text != NULL)
153: xfree(wl->status_text);
1.1 nicm 154: xfree(wl);
155:
156: if (w->references == 0)
157: fatal("bad reference count");
158: w->references--;
159: if (w->references == 0)
160: window_destroy(w);
161: }
162:
163: struct winlink *
1.41 nicm 164: winlink_next(struct winlink *wl)
1.1 nicm 165: {
166: return (RB_NEXT(winlinks, wwl, wl));
167: }
168:
169: struct winlink *
1.41 nicm 170: winlink_previous(struct winlink *wl)
1.1 nicm 171: {
172: return (RB_PREV(winlinks, wwl, wl));
1.52 nicm 173: }
174:
175: struct winlink *
1.53 nicm 176: winlink_next_by_number(struct winlink *wl, struct session *s, int n)
1.52 nicm 177: {
178: for (; n > 0; n--) {
179: if ((wl = RB_NEXT(winlinks, wwl, wl)) == NULL)
1.53 nicm 180: wl = RB_MIN(winlinks, &s->windows);
1.52 nicm 181: }
182:
183: return (wl);
184: }
185:
186: struct winlink *
1.53 nicm 187: winlink_previous_by_number(struct winlink *wl, struct session *s, int n)
1.52 nicm 188: {
189: for (; n > 0; n--) {
190: if ((wl = RB_PREV(winlinks, wwl, wl)) == NULL)
1.53 nicm 191: wl = RB_MAX(winlinks, &s->windows);
1.52 nicm 192: }
193:
194: return (wl);
1.1 nicm 195: }
196:
197: void
198: winlink_stack_push(struct winlink_stack *stack, struct winlink *wl)
199: {
200: if (wl == NULL)
201: return;
202:
203: winlink_stack_remove(stack, wl);
1.28 nicm 204: TAILQ_INSERT_HEAD(stack, wl, sentry);
1.1 nicm 205: }
206:
207: void
208: winlink_stack_remove(struct winlink_stack *stack, struct winlink *wl)
209: {
210: struct winlink *wl2;
211:
212: if (wl == NULL)
213: return;
1.42 nicm 214:
1.28 nicm 215: TAILQ_FOREACH(wl2, stack, sentry) {
1.1 nicm 216: if (wl2 == wl) {
1.28 nicm 217: TAILQ_REMOVE(stack, wl, sentry);
1.1 nicm 218: return;
219: }
220: }
221: }
222:
223: int
224: window_index(struct window *s, u_int *i)
225: {
226: for (*i = 0; *i < ARRAY_LENGTH(&windows); (*i)++) {
227: if (s == ARRAY_ITEM(&windows, *i))
228: return (0);
229: }
230: return (-1);
231: }
232:
233: struct window *
234: window_create1(u_int sx, u_int sy)
235: {
236: struct window *w;
237: u_int i;
238:
1.38 nicm 239: w = xcalloc(1, sizeof *w);
1.1 nicm 240: w->name = NULL;
241: w->flags = 0;
242:
243: TAILQ_INIT(&w->panes);
244: w->active = NULL;
1.14 nicm 245:
1.17 nicm 246: w->lastlayout = -1;
1.14 nicm 247: w->layout_root = NULL;
1.42 nicm 248:
1.1 nicm 249: w->sx = sx;
250: w->sy = sy;
251:
1.38 nicm 252: queue_window_name(w);
253:
1.7 nicm 254: options_init(&w->options, &global_w_options);
1.1 nicm 255:
256: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
257: if (ARRAY_ITEM(&windows, i) == NULL) {
258: ARRAY_SET(&windows, i, w);
259: break;
260: }
261: }
262: if (i == ARRAY_LENGTH(&windows))
263: ARRAY_ADD(&windows, w);
264: w->references = 0;
265:
266: return (w);
267: }
268:
269: struct window *
1.23 nicm 270: window_create(const char *name, const char *cmd, const char *shell,
271: const char *cwd, struct environ *env, struct termios *tio,
272: u_int sx, u_int sy, u_int hlimit,char **cause)
1.1 nicm 273: {
1.14 nicm 274: struct window *w;
275: struct window_pane *wp;
1.1 nicm 276:
277: w = window_create1(sx, sy);
1.16 nicm 278: wp = window_add_pane(w, hlimit);
1.14 nicm 279: layout_init(w);
1.23 nicm 280: if (window_pane_spawn(wp, cmd, shell, cwd, env, tio, cause) != 0) {
1.1 nicm 281: window_destroy(w);
282: return (NULL);
283: }
284: w->active = TAILQ_FIRST(&w->panes);
285: if (name != NULL) {
286: w->name = xstrdup(name);
287: options_set_number(&w->options, "automatic-rename", 0);
288: } else
289: w->name = default_window_name(w);
290: return (w);
291: }
292:
293: void
294: window_destroy(struct window *w)
295: {
296: u_int i;
297:
298: if (window_index(w, &i) != 0)
299: fatalx("index not found");
300: ARRAY_SET(&windows, i, NULL);
301: while (!ARRAY_EMPTY(&windows) && ARRAY_LAST(&windows) == NULL)
302: ARRAY_TRUNC(&windows, 1);
303:
1.14 nicm 304: if (w->layout_root != NULL)
305: layout_free(w);
306:
1.38 nicm 307: evtimer_del(&w->name_timer);
308:
1.1 nicm 309: options_free(&w->options);
310:
311: window_destroy_panes(w);
312:
313: if (w->name != NULL)
314: xfree(w->name);
315: xfree(w);
316: }
317:
1.15 nicm 318: void
1.1 nicm 319: window_resize(struct window *w, u_int sx, u_int sy)
320: {
321: w->sx = sx;
322: w->sy = sy;
323: }
324:
325: void
326: window_set_active_pane(struct window *w, struct window_pane *wp)
327: {
1.58 ! nicm 328: w->last = w->active;
1.1 nicm 329: w->active = wp;
1.10 nicm 330: while (!window_pane_visible(w->active)) {
1.1 nicm 331: w->active = TAILQ_PREV(w->active, window_panes, entry);
1.10 nicm 332: if (w->active == NULL)
333: w->active = TAILQ_LAST(&w->panes, window_panes);
334: if (w->active == wp)
335: return;
1.29 nicm 336: }
337: }
338:
339: void
340: window_set_active_at(struct window *w, u_int x, u_int y)
341: {
342: struct window_pane *wp;
343:
344: TAILQ_FOREACH(wp, &w->panes, entry) {
345: if (!window_pane_visible(wp))
346: continue;
347: if (x < wp->xoff || x >= wp->xoff + wp->sx)
348: continue;
349: if (y < wp->yoff || y >= wp->yoff + wp->sy)
350: continue;
351: window_set_active_pane(w, wp);
352: break;
1.10 nicm 353: }
1.1 nicm 354: }
355:
356: struct window_pane *
1.16 nicm 357: window_add_pane(struct window *w, u_int hlimit)
1.1 nicm 358: {
359: struct window_pane *wp;
360:
1.14 nicm 361: wp = window_pane_create(w, w->sx, w->sy, hlimit);
1.1 nicm 362: if (TAILQ_EMPTY(&w->panes))
363: TAILQ_INSERT_HEAD(&w->panes, wp, entry);
364: else
365: TAILQ_INSERT_AFTER(&w->panes, w->active, wp, entry);
366: return (wp);
367: }
368:
369: void
370: window_remove_pane(struct window *w, struct window_pane *wp)
371: {
1.57 nicm 372: if (wp == w->active) {
1.58 ! nicm 373: w->active = w->last;
! 374: w->last = NULL;
! 375: if (w->active == NULL) {
! 376: w->active = TAILQ_PREV(wp, window_panes, entry);
! 377: if (w->active == NULL)
! 378: w->active = TAILQ_NEXT(wp, entry);
! 379: }
! 380: } else if (wp == w->last)
! 381: w->last = NULL;
1.1 nicm 382:
383: TAILQ_REMOVE(&w->panes, wp, entry);
384: window_pane_destroy(wp);
385: }
386:
387: struct window_pane *
388: window_pane_at_index(struct window *w, u_int idx)
389: {
390: struct window_pane *wp;
391: u_int n;
392:
393: n = 0;
394: TAILQ_FOREACH(wp, &w->panes, entry) {
395: if (n == idx)
396: return (wp);
397: n++;
398: }
399: return (NULL);
1.53 nicm 400: }
401:
402: struct window_pane *
403: window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n)
404: {
405: for (; n > 0; n--) {
406: if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
407: wp = TAILQ_FIRST(&w->panes);
408: }
409:
410: return (wp);
411: }
412:
413: struct window_pane *
414: window_pane_previous_by_number(struct window *w, struct window_pane *wp,
415: u_int n)
416: {
417: for (; n > 0; n--) {
418: if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL)
419: wp = TAILQ_LAST(&w->panes, window_panes);
420: }
421:
422: return (wp);
1.13 nicm 423: }
424:
425: u_int
426: window_pane_index(struct window *w, struct window_pane *wp)
427: {
428: struct window_pane *wq;
429: u_int n;
430:
431: n = 0;
432: TAILQ_FOREACH(wq, &w->panes, entry) {
433: if (wp == wq)
434: break;
435: n++;
436: }
437: return (n);
1.1 nicm 438: }
439:
440: u_int
441: window_count_panes(struct window *w)
442: {
443: struct window_pane *wp;
444: u_int n;
445:
446: n = 0;
447: TAILQ_FOREACH(wp, &w->panes, entry)
448: n++;
449: return (n);
450: }
451:
452: void
453: window_destroy_panes(struct window *w)
454: {
455: struct window_pane *wp;
456:
457: while (!TAILQ_EMPTY(&w->panes)) {
458: wp = TAILQ_FIRST(&w->panes);
459: TAILQ_REMOVE(&w->panes, wp, entry);
460: window_pane_destroy(wp);
461: }
462: }
463:
464: struct window_pane *
465: window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
466: {
467: struct window_pane *wp;
468:
469: wp = xcalloc(1, sizeof *wp);
470: wp->window = w;
471:
472: wp->cmd = NULL;
1.23 nicm 473: wp->shell = NULL;
1.1 nicm 474: wp->cwd = NULL;
475:
476: wp->fd = -1;
1.37 nicm 477: wp->event = NULL;
1.1 nicm 478:
479: wp->mode = NULL;
1.14 nicm 480:
481: wp->layout_cell = NULL;
1.1 nicm 482:
483: wp->xoff = 0;
1.42 nicm 484: wp->yoff = 0;
1.1 nicm 485:
486: wp->sx = sx;
487: wp->sy = sy;
488:
1.32 nicm 489: wp->pipe_fd = -1;
490: wp->pipe_off = 0;
1.36 nicm 491: wp->pipe_event = NULL;
1.32 nicm 492:
1.9 nicm 493: wp->saved_grid = NULL;
494:
1.1 nicm 495: screen_init(&wp->base, sx, sy, hlimit);
496: wp->screen = &wp->base;
497:
498: input_init(wp);
499:
500: return (wp);
501: }
502:
503: void
504: window_pane_destroy(struct window_pane *wp)
505: {
1.55 nicm 506: window_pane_reset_mode(wp);
507:
1.37 nicm 508: if (wp->fd != -1) {
1.1 nicm 509: close(wp->fd);
1.37 nicm 510: bufferevent_free(wp->event);
511: }
1.1 nicm 512:
513: input_free(wp);
514:
515: screen_free(&wp->base);
1.9 nicm 516: if (wp->saved_grid != NULL)
517: grid_destroy(wp->saved_grid);
1.1 nicm 518:
1.32 nicm 519: if (wp->pipe_fd != -1) {
520: close(wp->pipe_fd);
1.36 nicm 521: bufferevent_free(wp->pipe_event);
1.32 nicm 522: }
523:
1.1 nicm 524: if (wp->cwd != NULL)
525: xfree(wp->cwd);
1.23 nicm 526: if (wp->shell != NULL)
527: xfree(wp->shell);
1.1 nicm 528: if (wp->cmd != NULL)
529: xfree(wp->cmd);
530: xfree(wp);
531: }
532:
533: int
1.23 nicm 534: window_pane_spawn(struct window_pane *wp, const char *cmd, const char *shell,
1.21 nicm 535: const char *cwd, struct environ *env, struct termios *tio, char **cause)
1.1 nicm 536: {
1.47 nicm 537: struct winsize ws;
538: int mode;
539: char *argv0;
540: const char *ptr;
541: struct termios tio2;
1.1 nicm 542:
1.37 nicm 543: if (wp->fd != -1) {
1.1 nicm 544: close(wp->fd);
1.37 nicm 545: bufferevent_free(wp->event);
546: }
1.1 nicm 547: if (cmd != NULL) {
548: if (wp->cmd != NULL)
549: xfree(wp->cmd);
550: wp->cmd = xstrdup(cmd);
551: }
1.23 nicm 552: if (shell != NULL) {
553: if (wp->shell != NULL)
554: xfree(wp->shell);
555: wp->shell = xstrdup(shell);
556: }
1.1 nicm 557: if (cwd != NULL) {
558: if (wp->cwd != NULL)
559: xfree(wp->cwd);
560: wp->cwd = xstrdup(cwd);
561: }
562:
563: memset(&ws, 0, sizeof ws);
564: ws.ws_col = screen_size_x(&wp->base);
565: ws.ws_row = screen_size_y(&wp->base);
566:
1.42 nicm 567: switch (wp->pid = forkpty(&wp->fd, wp->tty, NULL, &ws)) {
1.1 nicm 568: case -1:
569: wp->fd = -1;
570: xasprintf(cause, "%s: %s", cmd, strerror(errno));
571: return (-1);
572: case 0:
573: if (chdir(wp->cwd) != 0)
574: chdir("/");
1.25 nicm 575:
576: if (tcgetattr(STDIN_FILENO, &tio2) != 0)
577: fatal("tcgetattr failed");
578: if (tio != NULL)
579: memcpy(tio2.c_cc, tio->c_cc, sizeof tio2.c_cc);
580: tio2.c_cc[VERASE] = '\177';
581: if (tcsetattr(STDIN_FILENO, TCSANOW, &tio2) != 0)
582: fatal("tcgetattr failed");
1.18 nicm 583:
1.56 nicm 584: closefrom(STDERR_FILENO + 1);
585:
1.47 nicm 586: environ_push(env);
1.18 nicm 587:
1.54 nicm 588: clear_signals(1);
1.1 nicm 589: log_close();
590:
1.8 nicm 591: if (*wp->cmd != '\0') {
1.24 nicm 592: /* Set SHELL but only if it is currently not useful. */
593: shell = getenv("SHELL");
594: if (shell == NULL || *shell == '\0' || areshell(shell))
595: setenv("SHELL", wp->shell, 1);
596:
1.8 nicm 597: execl(_PATH_BSHELL, "sh", "-c", wp->cmd, (char *) NULL);
598: fatal("execl failed");
599: }
600:
601: /* No command; fork a login shell. */
1.23 nicm 602: ptr = strrchr(wp->shell, '/');
603: if (ptr != NULL && *(ptr + 1) != '\0')
1.8 nicm 604: xasprintf(&argv0, "-%s", ptr + 1);
605: else
1.23 nicm 606: xasprintf(&argv0, "-%s", wp->shell);
1.24 nicm 607: setenv("SHELL", wp->shell, 1);
1.23 nicm 608: execl(wp->shell, argv0, (char *) NULL);
1.1 nicm 609: fatal("execl failed");
610: }
611:
612: if ((mode = fcntl(wp->fd, F_GETFL)) == -1)
613: fatal("fcntl failed");
614: if (fcntl(wp->fd, F_SETFL, mode|O_NONBLOCK) == -1)
615: fatal("fcntl failed");
1.37 nicm 616: wp->event = bufferevent_new(wp->fd,
617: window_pane_read_callback, NULL, window_pane_error_callback, wp);
618: bufferevent_enable(wp->event, EV_READ|EV_WRITE);
1.1 nicm 619:
620: return (0);
621: }
622:
1.41 nicm 623: /* ARGSUSED */
1.15 nicm 624: void
1.37 nicm 625: window_pane_read_callback(unused struct bufferevent *bufev, void *data)
626: {
1.46 nicm 627: struct window_pane *wp = data;
628: char *new_data;
629: size_t new_size;
630:
631: new_size = EVBUFFER_LENGTH(wp->event->input) - wp->pipe_off;
632: if (wp->pipe_fd != -1 && new_size > 0) {
633: new_data = EVBUFFER_DATA(wp->event->input);
634: bufferevent_write(wp->pipe_event, new_data, new_size);
635: }
636:
637: input_parse(wp);
1.37 nicm 638:
1.46 nicm 639: wp->pipe_off = EVBUFFER_LENGTH(wp->event->input);
1.37 nicm 640: }
641:
1.41 nicm 642: /* ARGSUSED */
1.37 nicm 643: void
644: window_pane_error_callback(
645: unused struct bufferevent *bufev, unused short what, void *data)
646: {
647: struct window_pane *wp = data;
648:
1.39 nicm 649: server_destroy_pane(wp);
1.37 nicm 650: }
651:
652: void
1.1 nicm 653: window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
654: {
655: struct winsize ws;
656:
657: if (sx == wp->sx && sy == wp->sy)
1.15 nicm 658: return;
1.1 nicm 659: wp->sx = sx;
660: wp->sy = sy;
661:
662: memset(&ws, 0, sizeof ws);
663: ws.ws_col = sx;
664: ws.ws_row = sy;
665:
666: screen_resize(&wp->base, sx, sy);
667: if (wp->mode != NULL)
668: wp->mode->resize(wp, sx, sy);
669:
670: if (wp->fd != -1 && ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
671: fatal("ioctl failed");
1.44 nicm 672: }
673:
674: /*
675: * Enter alternative screen mode. A copy of the visible screen is saved and the
676: * history is not updated
677: */
678: void
679: window_pane_alternate_on(struct window_pane *wp, struct grid_cell *gc)
680: {
681: struct screen *s = &wp->base;
682: u_int sx, sy;
683:
684: if (wp->saved_grid != NULL)
685: return;
686: if (!options_get_number(&wp->window->options, "alternate-screen"))
687: return;
688: sx = screen_size_x(s);
689: sy = screen_size_y(s);
690:
691: wp->saved_grid = grid_create(sx, sy, 0);
692: grid_duplicate_lines(wp->saved_grid, 0, s->grid, screen_hsize(s), sy);
693: wp->saved_cx = s->cx;
694: wp->saved_cy = s->cy;
695: memcpy(&wp->saved_cell, gc, sizeof wp->saved_cell);
696:
697: grid_view_clear(s->grid, 0, 0, sx, sy);
698:
699: wp->base.grid->flags &= ~GRID_HISTORY;
700:
701: wp->flags |= PANE_REDRAW;
702: }
703:
704: /* Exit alternate screen mode and restore the copied grid. */
705: void
706: window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc)
707: {
708: struct screen *s = &wp->base;
709: u_int sx, sy;
710:
711: if (wp->saved_grid == NULL)
712: return;
713: if (!options_get_number(&wp->window->options, "alternate-screen"))
714: return;
715: sx = screen_size_x(s);
716: sy = screen_size_y(s);
717:
718: /*
719: * If the current size is bigger, temporarily resize to the old size
720: * before copying back.
721: */
722: if (sy > wp->saved_grid->sy)
723: screen_resize(s, sx, wp->saved_grid->sy);
724:
725: /* Restore the grid, cursor position and cell. */
726: grid_duplicate_lines(s->grid, screen_hsize(s), wp->saved_grid, 0, sy);
727: s->cx = wp->saved_cx;
728: if (s->cx > screen_size_x(s) - 1)
729: s->cx = screen_size_x(s) - 1;
730: s->cy = wp->saved_cy;
731: if (s->cy > screen_size_y(s) - 1)
732: s->cy = screen_size_y(s) - 1;
733: memcpy(gc, &wp->saved_cell, sizeof *gc);
734:
735: /*
736: * Turn history back on (so resize can use it) and then resize back to
737: * the current size.
738: */
739: wp->base.grid->flags |= GRID_HISTORY;
740: if (sy > wp->saved_grid->sy)
741: screen_resize(s, sx, sy);
742:
743: grid_destroy(wp->saved_grid);
744: wp->saved_grid = NULL;
745:
746: wp->flags |= PANE_REDRAW;
1.1 nicm 747: }
748:
749: int
750: window_pane_set_mode(struct window_pane *wp, const struct window_mode *mode)
751: {
752: struct screen *s;
753:
1.15 nicm 754: if (wp->mode != NULL)
1.1 nicm 755: return (1);
756: wp->mode = mode;
757:
758: if ((s = wp->mode->init(wp)) != NULL)
759: wp->screen = s;
1.34 nicm 760: wp->flags |= PANE_REDRAW;
1.1 nicm 761: return (0);
762: }
763:
764: void
765: window_pane_reset_mode(struct window_pane *wp)
766: {
767: if (wp->mode == NULL)
768: return;
769:
770: wp->mode->free(wp);
771: wp->mode = NULL;
772:
773: wp->screen = &wp->base;
1.34 nicm 774: wp->flags |= PANE_REDRAW;
1.1 nicm 775: }
776:
777: void
1.51 nicm 778: window_pane_key(struct window_pane *wp, struct session *sess, int key)
1.1 nicm 779: {
1.27 nicm 780: struct window_pane *wp2;
781:
1.30 nicm 782: if (!window_pane_visible(wp))
1.3 nicm 783: return;
784:
1.1 nicm 785: if (wp->mode != NULL) {
786: if (wp->mode->key != NULL)
1.51 nicm 787: wp->mode->key(wp, sess, key);
1.27 nicm 788: return;
1.30 nicm 789: }
1.27 nicm 790:
1.30 nicm 791: if (wp->fd == -1)
792: return;
1.27 nicm 793: input_key(wp, key);
794: if (options_get_number(&wp->window->options, "synchronize-panes")) {
795: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
796: if (wp2 == wp || wp2->mode != NULL)
797: continue;
798: if (wp2->fd != -1 && window_pane_visible(wp2))
799: input_key(wp2, key);
800: }
801: }
1.1 nicm 802: }
803:
804: void
805: window_pane_mouse(
1.51 nicm 806: struct window_pane *wp, struct session *sess, struct mouse_event *m)
1.1 nicm 807: {
1.30 nicm 808: if (!window_pane_visible(wp))
1.3 nicm 809: return;
810:
1.31 nicm 811: if (m->x < wp->xoff || m->x >= wp->xoff + wp->sx)
1.1 nicm 812: return;
1.31 nicm 813: if (m->y < wp->yoff || m->y >= wp->yoff + wp->sy)
1.1 nicm 814: return;
1.31 nicm 815: m->x -= wp->xoff;
816: m->y -= wp->yoff;
1.1 nicm 817:
818: if (wp->mode != NULL) {
819: if (wp->mode->mouse != NULL)
1.51 nicm 820: wp->mode->mouse(wp, sess, m);
1.30 nicm 821: } else if (wp->fd != -1)
1.31 nicm 822: input_mouse(wp, m);
1.10 nicm 823: }
824:
825: int
826: window_pane_visible(struct window_pane *wp)
827: {
828: struct window *w = wp->window;
829:
830: if (wp->xoff >= w->sx || wp->yoff >= w->sy)
831: return (0);
832: if (wp->xoff + wp->sx > w->sx || wp->yoff + wp->sy > w->sy)
833: return (0);
834: return (1);
1.1 nicm 835: }
836:
837: char *
1.5 nicm 838: window_pane_search(struct window_pane *wp, const char *searchstr, u_int *lineno)
1.1 nicm 839: {
1.4 nicm 840: struct screen *s = &wp->base;
1.5 nicm 841: char *newsearchstr, *line, *msg;
1.4 nicm 842: u_int i;
843:
1.5 nicm 844: msg = NULL;
845: xasprintf(&newsearchstr, "*%s*", searchstr);
846:
1.4 nicm 847: for (i = 0; i < screen_size_y(s); i++) {
848: line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
1.5 nicm 849: if (fnmatch(newsearchstr, line, 0) == 0) {
850: msg = line;
851: if (lineno != NULL)
852: *lineno = i;
853: break;
854: }
1.4 nicm 855: xfree(line);
856: }
1.5 nicm 857:
858: xfree(newsearchstr);
859: return (msg);
1.45 nicm 860: }
861:
862: /* Find the pane directly above another. */
863: struct window_pane *
864: window_pane_find_up(struct window_pane *wp)
865: {
866: struct window_pane *wp2;
867: u_int left, top;
868:
869: if (wp == NULL || !window_pane_visible(wp))
870: return (NULL);
871:
872: top = wp->yoff;
873: if (top == 0)
874: top = wp->window->sy + 1;
875: left = wp->xoff;
876:
877: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
878: if (!window_pane_visible(wp2))
879: continue;
880: if (wp2->yoff + wp2->sy + 1 != top)
881: continue;
882: if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
883: return (wp2);
884: }
885: return (NULL);
886: }
887:
888: /* Find the pane directly below another. */
889: struct window_pane *
890: window_pane_find_down(struct window_pane *wp)
891: {
892: struct window_pane *wp2;
893: u_int left, bottom;
894:
895: if (wp == NULL || !window_pane_visible(wp))
896: return (NULL);
897:
898: bottom = wp->yoff + wp->sy + 1;
899: if (bottom >= wp->window->sy)
900: bottom = 0;
901: left = wp->xoff;
902:
903: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
904: if (!window_pane_visible(wp2))
905: continue;
906: if (wp2->yoff != bottom)
907: continue;
908: if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
909: return (wp2);
910: }
911: return (NULL);
912: }
913:
914: /*
915: * Find the pane directly to the left of another, adjacent to the left side and
916: * containing the top edge.
917: */
918: struct window_pane *
919: window_pane_find_left(struct window_pane *wp)
920: {
921: struct window_pane *wp2;
922: u_int left, top;
923:
924: if (wp == NULL || !window_pane_visible(wp))
925: return (NULL);
926:
927: left = wp->xoff;
928: if (left == 0)
929: left = wp->window->sx + 1;
930: top = wp->yoff;
931:
932: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
933: if (!window_pane_visible(wp2))
934: continue;
935: if (wp2->xoff + wp2->sx + 1 != left)
936: continue;
937: if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
938: return (wp2);
939: }
940: return (NULL);
941: }
942:
943: /*
944: * Find the pane directly to the right of another, that is adjacent to the
945: * right edge and including the top edge.
946: */
947: struct window_pane *
948: window_pane_find_right(struct window_pane *wp)
949: {
950: struct window_pane *wp2;
951: u_int right, top;
952:
953: if (wp == NULL || !window_pane_visible(wp))
954: return (NULL);
955:
956: right = wp->xoff + wp->sx + 1;
957: if (right >= wp->window->sx)
958: right = 0;
959: top = wp->yoff;
960:
961: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
962: if (!window_pane_visible(wp2))
963: continue;
964: if (wp2->xoff != right)
965: continue;
966: if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
967: return (wp2);
968: }
969: return (NULL);
1.1 nicm 970: }
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