Annotation of src/usr.bin/tmux/window.c, Revision 1.62
1.62 ! nicm 1: /* $OpenBSD: window.c,v 1.61 2010/12/30 21:35:17 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: {
1.59 nicm 328: if (wp == w->active)
329: return;
1.58 nicm 330: w->last = w->active;
1.1 nicm 331: w->active = wp;
1.10 nicm 332: while (!window_pane_visible(w->active)) {
1.1 nicm 333: w->active = TAILQ_PREV(w->active, window_panes, entry);
1.10 nicm 334: if (w->active == NULL)
335: w->active = TAILQ_LAST(&w->panes, window_panes);
336: if (w->active == wp)
337: return;
1.29 nicm 338: }
339: }
340:
341: void
342: window_set_active_at(struct window *w, u_int x, u_int y)
343: {
344: struct window_pane *wp;
345:
346: TAILQ_FOREACH(wp, &w->panes, entry) {
1.59 nicm 347: if (wp == w->active || !window_pane_visible(wp))
1.29 nicm 348: continue;
349: if (x < wp->xoff || x >= wp->xoff + wp->sx)
350: continue;
351: if (y < wp->yoff || y >= wp->yoff + wp->sy)
352: continue;
353: window_set_active_pane(w, wp);
354: break;
1.10 nicm 355: }
1.1 nicm 356: }
357:
358: struct window_pane *
1.16 nicm 359: window_add_pane(struct window *w, u_int hlimit)
1.1 nicm 360: {
361: struct window_pane *wp;
362:
1.14 nicm 363: wp = window_pane_create(w, w->sx, w->sy, hlimit);
1.1 nicm 364: if (TAILQ_EMPTY(&w->panes))
365: TAILQ_INSERT_HEAD(&w->panes, wp, entry);
366: else
367: TAILQ_INSERT_AFTER(&w->panes, w->active, wp, entry);
368: return (wp);
369: }
370:
371: void
372: window_remove_pane(struct window *w, struct window_pane *wp)
373: {
1.57 nicm 374: if (wp == w->active) {
1.58 nicm 375: w->active = w->last;
376: w->last = NULL;
377: if (w->active == NULL) {
378: w->active = TAILQ_PREV(wp, window_panes, entry);
379: if (w->active == NULL)
380: w->active = TAILQ_NEXT(wp, entry);
381: }
382: } else if (wp == w->last)
383: w->last = NULL;
1.1 nicm 384:
385: TAILQ_REMOVE(&w->panes, wp, entry);
386: window_pane_destroy(wp);
387: }
388:
389: struct window_pane *
390: window_pane_at_index(struct window *w, u_int idx)
391: {
392: struct window_pane *wp;
393: u_int n;
394:
395: n = 0;
396: TAILQ_FOREACH(wp, &w->panes, entry) {
397: if (n == idx)
398: return (wp);
399: n++;
400: }
401: return (NULL);
1.53 nicm 402: }
403:
404: struct window_pane *
405: window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n)
406: {
407: for (; n > 0; n--) {
408: if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
409: wp = TAILQ_FIRST(&w->panes);
410: }
411:
412: return (wp);
413: }
414:
415: struct window_pane *
416: window_pane_previous_by_number(struct window *w, struct window_pane *wp,
417: u_int n)
418: {
419: for (; n > 0; n--) {
420: if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL)
421: wp = TAILQ_LAST(&w->panes, window_panes);
422: }
423:
424: return (wp);
1.13 nicm 425: }
426:
427: u_int
428: window_pane_index(struct window *w, struct window_pane *wp)
429: {
430: struct window_pane *wq;
431: u_int n;
432:
433: n = 0;
434: TAILQ_FOREACH(wq, &w->panes, entry) {
435: if (wp == wq)
436: break;
437: n++;
438: }
439: return (n);
1.1 nicm 440: }
441:
442: u_int
443: window_count_panes(struct window *w)
444: {
445: struct window_pane *wp;
446: u_int n;
447:
448: n = 0;
449: TAILQ_FOREACH(wp, &w->panes, entry)
450: n++;
451: return (n);
452: }
453:
454: void
455: window_destroy_panes(struct window *w)
456: {
457: struct window_pane *wp;
458:
459: while (!TAILQ_EMPTY(&w->panes)) {
460: wp = TAILQ_FIRST(&w->panes);
461: TAILQ_REMOVE(&w->panes, wp, entry);
462: window_pane_destroy(wp);
463: }
1.61 nicm 464: }
465:
466: /* Return list of printable window flag symbols. No flags is just a space. */
467: char *
468: window_printable_flags(struct session *s, struct winlink *wl)
469: {
470: char flags[BUFSIZ];
471: int pos;
472:
473: pos = 0;
474: if (wl->flags & WINLINK_ACTIVITY)
475: flags[pos++] = '#';
476: if (wl->flags & WINLINK_BELL)
477: flags[pos++] = '!';
478: if (wl->flags & WINLINK_CONTENT)
479: flags[pos++] = '+';
480: if (wl->flags & WINLINK_SILENCE)
481: flags[pos++] = '~';
482: if (wl == s->curw)
483: flags[pos++] = '*';
484: if (wl == TAILQ_FIRST(&s->lastw))
485: flags[pos++] = '-';
486: if (pos == 0)
487: flags[pos++] = ' ';
488: flags[pos] = '\0';
489: return (xstrdup(flags));
1.1 nicm 490: }
491:
492: struct window_pane *
493: window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
494: {
495: struct window_pane *wp;
496:
497: wp = xcalloc(1, sizeof *wp);
498: wp->window = w;
499:
500: wp->cmd = NULL;
1.23 nicm 501: wp->shell = NULL;
1.1 nicm 502: wp->cwd = NULL;
503:
504: wp->fd = -1;
1.37 nicm 505: wp->event = NULL;
1.1 nicm 506:
507: wp->mode = NULL;
1.14 nicm 508:
509: wp->layout_cell = NULL;
1.1 nicm 510:
511: wp->xoff = 0;
1.42 nicm 512: wp->yoff = 0;
1.1 nicm 513:
514: wp->sx = sx;
515: wp->sy = sy;
516:
1.32 nicm 517: wp->pipe_fd = -1;
518: wp->pipe_off = 0;
1.36 nicm 519: wp->pipe_event = NULL;
1.32 nicm 520:
1.9 nicm 521: wp->saved_grid = NULL;
522:
1.1 nicm 523: screen_init(&wp->base, sx, sy, hlimit);
524: wp->screen = &wp->base;
525:
526: input_init(wp);
527:
528: return (wp);
529: }
530:
531: void
532: window_pane_destroy(struct window_pane *wp)
533: {
1.55 nicm 534: window_pane_reset_mode(wp);
535:
1.37 nicm 536: if (wp->fd != -1) {
1.1 nicm 537: close(wp->fd);
1.37 nicm 538: bufferevent_free(wp->event);
539: }
1.1 nicm 540:
541: input_free(wp);
542:
543: screen_free(&wp->base);
1.9 nicm 544: if (wp->saved_grid != NULL)
545: grid_destroy(wp->saved_grid);
1.1 nicm 546:
1.32 nicm 547: if (wp->pipe_fd != -1) {
548: close(wp->pipe_fd);
1.36 nicm 549: bufferevent_free(wp->pipe_event);
1.32 nicm 550: }
551:
1.1 nicm 552: if (wp->cwd != NULL)
553: xfree(wp->cwd);
1.23 nicm 554: if (wp->shell != NULL)
555: xfree(wp->shell);
1.1 nicm 556: if (wp->cmd != NULL)
557: xfree(wp->cmd);
558: xfree(wp);
559: }
560:
561: int
1.23 nicm 562: window_pane_spawn(struct window_pane *wp, const char *cmd, const char *shell,
1.21 nicm 563: const char *cwd, struct environ *env, struct termios *tio, char **cause)
1.1 nicm 564: {
1.47 nicm 565: struct winsize ws;
566: char *argv0;
567: const char *ptr;
568: struct termios tio2;
1.1 nicm 569:
1.37 nicm 570: if (wp->fd != -1) {
1.1 nicm 571: close(wp->fd);
1.37 nicm 572: bufferevent_free(wp->event);
573: }
1.1 nicm 574: if (cmd != NULL) {
575: if (wp->cmd != NULL)
576: xfree(wp->cmd);
577: wp->cmd = xstrdup(cmd);
578: }
1.23 nicm 579: if (shell != NULL) {
580: if (wp->shell != NULL)
581: xfree(wp->shell);
582: wp->shell = xstrdup(shell);
583: }
1.1 nicm 584: if (cwd != NULL) {
585: if (wp->cwd != NULL)
586: xfree(wp->cwd);
587: wp->cwd = xstrdup(cwd);
588: }
589:
590: memset(&ws, 0, sizeof ws);
591: ws.ws_col = screen_size_x(&wp->base);
592: ws.ws_row = screen_size_y(&wp->base);
593:
1.42 nicm 594: switch (wp->pid = forkpty(&wp->fd, wp->tty, NULL, &ws)) {
1.1 nicm 595: case -1:
596: wp->fd = -1;
597: xasprintf(cause, "%s: %s", cmd, strerror(errno));
598: return (-1);
599: case 0:
600: if (chdir(wp->cwd) != 0)
601: chdir("/");
1.25 nicm 602:
603: if (tcgetattr(STDIN_FILENO, &tio2) != 0)
604: fatal("tcgetattr failed");
605: if (tio != NULL)
606: memcpy(tio2.c_cc, tio->c_cc, sizeof tio2.c_cc);
607: tio2.c_cc[VERASE] = '\177';
608: if (tcsetattr(STDIN_FILENO, TCSANOW, &tio2) != 0)
609: fatal("tcgetattr failed");
1.18 nicm 610:
1.56 nicm 611: closefrom(STDERR_FILENO + 1);
612:
1.47 nicm 613: environ_push(env);
1.18 nicm 614:
1.54 nicm 615: clear_signals(1);
1.1 nicm 616: log_close();
617:
1.8 nicm 618: if (*wp->cmd != '\0') {
1.24 nicm 619: /* Set SHELL but only if it is currently not useful. */
620: shell = getenv("SHELL");
621: if (shell == NULL || *shell == '\0' || areshell(shell))
622: setenv("SHELL", wp->shell, 1);
623:
1.8 nicm 624: execl(_PATH_BSHELL, "sh", "-c", wp->cmd, (char *) NULL);
625: fatal("execl failed");
626: }
627:
628: /* No command; fork a login shell. */
1.23 nicm 629: ptr = strrchr(wp->shell, '/');
630: if (ptr != NULL && *(ptr + 1) != '\0')
1.8 nicm 631: xasprintf(&argv0, "-%s", ptr + 1);
632: else
1.23 nicm 633: xasprintf(&argv0, "-%s", wp->shell);
1.24 nicm 634: setenv("SHELL", wp->shell, 1);
1.23 nicm 635: execl(wp->shell, argv0, (char *) NULL);
1.1 nicm 636: fatal("execl failed");
637: }
638:
1.62 ! nicm 639: setblocking(wp->fd, 0);
! 640:
1.37 nicm 641: wp->event = bufferevent_new(wp->fd,
642: window_pane_read_callback, NULL, window_pane_error_callback, wp);
643: bufferevent_enable(wp->event, EV_READ|EV_WRITE);
1.1 nicm 644:
645: return (0);
646: }
647:
1.41 nicm 648: /* ARGSUSED */
1.15 nicm 649: void
1.37 nicm 650: window_pane_read_callback(unused struct bufferevent *bufev, void *data)
651: {
1.46 nicm 652: struct window_pane *wp = data;
653: char *new_data;
654: size_t new_size;
655:
656: new_size = EVBUFFER_LENGTH(wp->event->input) - wp->pipe_off;
657: if (wp->pipe_fd != -1 && new_size > 0) {
658: new_data = EVBUFFER_DATA(wp->event->input);
659: bufferevent_write(wp->pipe_event, new_data, new_size);
660: }
661:
662: input_parse(wp);
1.37 nicm 663:
1.46 nicm 664: wp->pipe_off = EVBUFFER_LENGTH(wp->event->input);
1.60 nicm 665:
666: /*
667: * If we get here, we're not outputting anymore, so set the silence
668: * flag on the window.
669: */
670: wp->window->flags |= WINDOW_SILENCE;
671: if (gettimeofday(&wp->window->silence_timer, NULL) != 0)
672: fatal("gettimeofday failed.");
1.37 nicm 673: }
674:
1.41 nicm 675: /* ARGSUSED */
1.37 nicm 676: void
677: window_pane_error_callback(
678: unused struct bufferevent *bufev, unused short what, void *data)
679: {
680: struct window_pane *wp = data;
681:
1.39 nicm 682: server_destroy_pane(wp);
1.37 nicm 683: }
684:
685: void
1.1 nicm 686: window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
687: {
688: struct winsize ws;
689:
690: if (sx == wp->sx && sy == wp->sy)
1.15 nicm 691: return;
1.1 nicm 692: wp->sx = sx;
693: wp->sy = sy;
694:
695: memset(&ws, 0, sizeof ws);
696: ws.ws_col = sx;
697: ws.ws_row = sy;
698:
699: screen_resize(&wp->base, sx, sy);
700: if (wp->mode != NULL)
701: wp->mode->resize(wp, sx, sy);
702:
703: if (wp->fd != -1 && ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
704: fatal("ioctl failed");
1.44 nicm 705: }
706:
707: /*
708: * Enter alternative screen mode. A copy of the visible screen is saved and the
709: * history is not updated
710: */
711: void
712: window_pane_alternate_on(struct window_pane *wp, struct grid_cell *gc)
713: {
714: struct screen *s = &wp->base;
715: u_int sx, sy;
716:
717: if (wp->saved_grid != NULL)
718: return;
719: if (!options_get_number(&wp->window->options, "alternate-screen"))
720: return;
721: sx = screen_size_x(s);
722: sy = screen_size_y(s);
723:
724: wp->saved_grid = grid_create(sx, sy, 0);
725: grid_duplicate_lines(wp->saved_grid, 0, s->grid, screen_hsize(s), sy);
726: wp->saved_cx = s->cx;
727: wp->saved_cy = s->cy;
728: memcpy(&wp->saved_cell, gc, sizeof wp->saved_cell);
729:
730: grid_view_clear(s->grid, 0, 0, sx, sy);
731:
732: wp->base.grid->flags &= ~GRID_HISTORY;
733:
734: wp->flags |= PANE_REDRAW;
735: }
736:
737: /* Exit alternate screen mode and restore the copied grid. */
738: void
739: window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc)
740: {
741: struct screen *s = &wp->base;
742: u_int sx, sy;
743:
744: if (wp->saved_grid == NULL)
745: return;
746: if (!options_get_number(&wp->window->options, "alternate-screen"))
747: return;
748: sx = screen_size_x(s);
749: sy = screen_size_y(s);
750:
751: /*
752: * If the current size is bigger, temporarily resize to the old size
753: * before copying back.
754: */
755: if (sy > wp->saved_grid->sy)
756: screen_resize(s, sx, wp->saved_grid->sy);
757:
758: /* Restore the grid, cursor position and cell. */
759: grid_duplicate_lines(s->grid, screen_hsize(s), wp->saved_grid, 0, sy);
760: s->cx = wp->saved_cx;
761: if (s->cx > screen_size_x(s) - 1)
762: s->cx = screen_size_x(s) - 1;
763: s->cy = wp->saved_cy;
764: if (s->cy > screen_size_y(s) - 1)
765: s->cy = screen_size_y(s) - 1;
766: memcpy(gc, &wp->saved_cell, sizeof *gc);
767:
768: /*
769: * Turn history back on (so resize can use it) and then resize back to
770: * the current size.
771: */
772: wp->base.grid->flags |= GRID_HISTORY;
773: if (sy > wp->saved_grid->sy)
774: screen_resize(s, sx, sy);
775:
776: grid_destroy(wp->saved_grid);
777: wp->saved_grid = NULL;
778:
779: wp->flags |= PANE_REDRAW;
1.1 nicm 780: }
781:
782: int
783: window_pane_set_mode(struct window_pane *wp, const struct window_mode *mode)
784: {
785: struct screen *s;
786:
1.15 nicm 787: if (wp->mode != NULL)
1.1 nicm 788: return (1);
789: wp->mode = mode;
790:
791: if ((s = wp->mode->init(wp)) != NULL)
792: wp->screen = s;
1.34 nicm 793: wp->flags |= PANE_REDRAW;
1.1 nicm 794: return (0);
795: }
796:
797: void
798: window_pane_reset_mode(struct window_pane *wp)
799: {
800: if (wp->mode == NULL)
801: return;
802:
803: wp->mode->free(wp);
804: wp->mode = NULL;
805:
806: wp->screen = &wp->base;
1.34 nicm 807: wp->flags |= PANE_REDRAW;
1.1 nicm 808: }
809:
810: void
1.51 nicm 811: window_pane_key(struct window_pane *wp, struct session *sess, int key)
1.1 nicm 812: {
1.27 nicm 813: struct window_pane *wp2;
814:
1.30 nicm 815: if (!window_pane_visible(wp))
1.3 nicm 816: return;
817:
1.1 nicm 818: if (wp->mode != NULL) {
819: if (wp->mode->key != NULL)
1.51 nicm 820: wp->mode->key(wp, sess, key);
1.27 nicm 821: return;
1.30 nicm 822: }
1.27 nicm 823:
1.30 nicm 824: if (wp->fd == -1)
825: return;
1.27 nicm 826: input_key(wp, key);
827: if (options_get_number(&wp->window->options, "synchronize-panes")) {
828: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
829: if (wp2 == wp || wp2->mode != NULL)
830: continue;
831: if (wp2->fd != -1 && window_pane_visible(wp2))
832: input_key(wp2, key);
833: }
834: }
1.1 nicm 835: }
836:
837: void
838: window_pane_mouse(
1.51 nicm 839: struct window_pane *wp, struct session *sess, struct mouse_event *m)
1.1 nicm 840: {
1.30 nicm 841: if (!window_pane_visible(wp))
1.3 nicm 842: return;
843:
1.31 nicm 844: if (m->x < wp->xoff || m->x >= wp->xoff + wp->sx)
1.1 nicm 845: return;
1.31 nicm 846: if (m->y < wp->yoff || m->y >= wp->yoff + wp->sy)
1.1 nicm 847: return;
1.31 nicm 848: m->x -= wp->xoff;
849: m->y -= wp->yoff;
1.1 nicm 850:
851: if (wp->mode != NULL) {
852: if (wp->mode->mouse != NULL)
1.51 nicm 853: wp->mode->mouse(wp, sess, m);
1.30 nicm 854: } else if (wp->fd != -1)
1.31 nicm 855: input_mouse(wp, m);
1.10 nicm 856: }
857:
858: int
859: window_pane_visible(struct window_pane *wp)
860: {
861: struct window *w = wp->window;
862:
863: if (wp->xoff >= w->sx || wp->yoff >= w->sy)
864: return (0);
865: if (wp->xoff + wp->sx > w->sx || wp->yoff + wp->sy > w->sy)
866: return (0);
867: return (1);
1.1 nicm 868: }
869:
870: char *
1.5 nicm 871: window_pane_search(struct window_pane *wp, const char *searchstr, u_int *lineno)
1.1 nicm 872: {
1.4 nicm 873: struct screen *s = &wp->base;
1.5 nicm 874: char *newsearchstr, *line, *msg;
1.4 nicm 875: u_int i;
876:
1.5 nicm 877: msg = NULL;
878: xasprintf(&newsearchstr, "*%s*", searchstr);
879:
1.4 nicm 880: for (i = 0; i < screen_size_y(s); i++) {
881: line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
1.5 nicm 882: if (fnmatch(newsearchstr, line, 0) == 0) {
883: msg = line;
884: if (lineno != NULL)
885: *lineno = i;
886: break;
887: }
1.4 nicm 888: xfree(line);
889: }
1.5 nicm 890:
891: xfree(newsearchstr);
892: return (msg);
1.45 nicm 893: }
894:
895: /* Find the pane directly above another. */
896: struct window_pane *
897: window_pane_find_up(struct window_pane *wp)
898: {
899: struct window_pane *wp2;
900: u_int left, top;
901:
902: if (wp == NULL || !window_pane_visible(wp))
903: return (NULL);
904:
905: top = wp->yoff;
906: if (top == 0)
907: top = wp->window->sy + 1;
908: left = wp->xoff;
909:
910: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
911: if (!window_pane_visible(wp2))
912: continue;
913: if (wp2->yoff + wp2->sy + 1 != top)
914: continue;
915: if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
916: return (wp2);
917: }
918: return (NULL);
919: }
920:
921: /* Find the pane directly below another. */
922: struct window_pane *
923: window_pane_find_down(struct window_pane *wp)
924: {
925: struct window_pane *wp2;
926: u_int left, bottom;
927:
928: if (wp == NULL || !window_pane_visible(wp))
929: return (NULL);
930:
931: bottom = wp->yoff + wp->sy + 1;
932: if (bottom >= wp->window->sy)
933: bottom = 0;
934: left = wp->xoff;
935:
936: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
937: if (!window_pane_visible(wp2))
938: continue;
939: if (wp2->yoff != bottom)
940: continue;
941: if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
942: return (wp2);
943: }
944: return (NULL);
945: }
946:
947: /*
948: * Find the pane directly to the left of another, adjacent to the left side and
949: * containing the top edge.
950: */
951: struct window_pane *
952: window_pane_find_left(struct window_pane *wp)
953: {
954: struct window_pane *wp2;
955: u_int left, top;
956:
957: if (wp == NULL || !window_pane_visible(wp))
958: return (NULL);
959:
960: left = wp->xoff;
961: if (left == 0)
962: left = wp->window->sx + 1;
963: top = wp->yoff;
964:
965: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
966: if (!window_pane_visible(wp2))
967: continue;
968: if (wp2->xoff + wp2->sx + 1 != left)
969: continue;
970: if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
971: return (wp2);
972: }
973: return (NULL);
974: }
975:
976: /*
977: * Find the pane directly to the right of another, that is adjacent to the
978: * right edge and including the top edge.
979: */
980: struct window_pane *
981: window_pane_find_right(struct window_pane *wp)
982: {
983: struct window_pane *wp2;
984: u_int right, top;
985:
986: if (wp == NULL || !window_pane_visible(wp))
987: return (NULL);
988:
989: right = wp->xoff + wp->sx + 1;
990: if (right >= wp->window->sx)
991: right = 0;
992: top = wp->yoff;
993:
994: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
995: if (!window_pane_visible(wp2))
996: continue;
997: if (wp2->xoff != right)
998: continue;
999: if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
1000: return (wp2);
1001: }
1002: return (NULL);
1.1 nicm 1003: }
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