Annotation of src/usr.bin/tmux/window.c, Revision 1.46
1.46 ! nicm 1: /* $OpenBSD: window.c,v 1.45 2010/03/22 19:07:52 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));
173: }
174:
175: void
176: winlink_stack_push(struct winlink_stack *stack, struct winlink *wl)
177: {
178: if (wl == NULL)
179: return;
180:
181: winlink_stack_remove(stack, wl);
1.28 nicm 182: TAILQ_INSERT_HEAD(stack, wl, sentry);
1.1 nicm 183: }
184:
185: void
186: winlink_stack_remove(struct winlink_stack *stack, struct winlink *wl)
187: {
188: struct winlink *wl2;
189:
190: if (wl == NULL)
191: return;
1.42 nicm 192:
1.28 nicm 193: TAILQ_FOREACH(wl2, stack, sentry) {
1.1 nicm 194: if (wl2 == wl) {
1.28 nicm 195: TAILQ_REMOVE(stack, wl, sentry);
1.1 nicm 196: return;
197: }
198: }
199: }
200:
201: int
202: window_index(struct window *s, u_int *i)
203: {
204: for (*i = 0; *i < ARRAY_LENGTH(&windows); (*i)++) {
205: if (s == ARRAY_ITEM(&windows, *i))
206: return (0);
207: }
208: return (-1);
209: }
210:
211: struct window *
212: window_create1(u_int sx, u_int sy)
213: {
214: struct window *w;
215: u_int i;
216:
1.38 nicm 217: w = xcalloc(1, sizeof *w);
1.1 nicm 218: w->name = NULL;
219: w->flags = 0;
220:
221: TAILQ_INIT(&w->panes);
222: w->active = NULL;
1.14 nicm 223:
1.17 nicm 224: w->lastlayout = -1;
1.14 nicm 225: w->layout_root = NULL;
1.42 nicm 226:
1.1 nicm 227: w->sx = sx;
228: w->sy = sy;
229:
1.38 nicm 230: queue_window_name(w);
231:
1.7 nicm 232: options_init(&w->options, &global_w_options);
1.1 nicm 233:
234: for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
235: if (ARRAY_ITEM(&windows, i) == NULL) {
236: ARRAY_SET(&windows, i, w);
237: break;
238: }
239: }
240: if (i == ARRAY_LENGTH(&windows))
241: ARRAY_ADD(&windows, w);
242: w->references = 0;
243:
244: return (w);
245: }
246:
247: struct window *
1.23 nicm 248: window_create(const char *name, const char *cmd, const char *shell,
249: const char *cwd, struct environ *env, struct termios *tio,
250: u_int sx, u_int sy, u_int hlimit,char **cause)
1.1 nicm 251: {
1.14 nicm 252: struct window *w;
253: struct window_pane *wp;
1.1 nicm 254:
255: w = window_create1(sx, sy);
1.16 nicm 256: wp = window_add_pane(w, hlimit);
1.14 nicm 257: layout_init(w);
1.23 nicm 258: if (window_pane_spawn(wp, cmd, shell, cwd, env, tio, cause) != 0) {
1.1 nicm 259: window_destroy(w);
260: return (NULL);
261: }
262: w->active = TAILQ_FIRST(&w->panes);
263: if (name != NULL) {
264: w->name = xstrdup(name);
265: options_set_number(&w->options, "automatic-rename", 0);
266: } else
267: w->name = default_window_name(w);
268: return (w);
269: }
270:
271: void
272: window_destroy(struct window *w)
273: {
274: u_int i;
275:
276: if (window_index(w, &i) != 0)
277: fatalx("index not found");
278: ARRAY_SET(&windows, i, NULL);
279: while (!ARRAY_EMPTY(&windows) && ARRAY_LAST(&windows) == NULL)
280: ARRAY_TRUNC(&windows, 1);
281:
1.14 nicm 282: if (w->layout_root != NULL)
283: layout_free(w);
284:
1.38 nicm 285: evtimer_del(&w->name_timer);
286:
1.1 nicm 287: options_free(&w->options);
288:
289: window_destroy_panes(w);
290:
291: if (w->name != NULL)
292: xfree(w->name);
293: xfree(w);
294: }
295:
1.15 nicm 296: void
1.1 nicm 297: window_resize(struct window *w, u_int sx, u_int sy)
298: {
299: w->sx = sx;
300: w->sy = sy;
301: }
302:
303: void
304: window_set_active_pane(struct window *w, struct window_pane *wp)
305: {
306: w->active = wp;
1.10 nicm 307: while (!window_pane_visible(w->active)) {
1.1 nicm 308: w->active = TAILQ_PREV(w->active, window_panes, entry);
1.10 nicm 309: if (w->active == NULL)
310: w->active = TAILQ_LAST(&w->panes, window_panes);
311: if (w->active == wp)
312: return;
1.29 nicm 313: }
314: }
315:
316: void
317: window_set_active_at(struct window *w, u_int x, u_int y)
318: {
319: struct window_pane *wp;
320:
321: TAILQ_FOREACH(wp, &w->panes, entry) {
322: if (!window_pane_visible(wp))
323: continue;
324: if (x < wp->xoff || x >= wp->xoff + wp->sx)
325: continue;
326: if (y < wp->yoff || y >= wp->yoff + wp->sy)
327: continue;
328: window_set_active_pane(w, wp);
329: break;
1.10 nicm 330: }
1.1 nicm 331: }
332:
333: struct window_pane *
1.16 nicm 334: window_add_pane(struct window *w, u_int hlimit)
1.1 nicm 335: {
336: struct window_pane *wp;
337:
1.14 nicm 338: wp = window_pane_create(w, w->sx, w->sy, hlimit);
1.1 nicm 339: if (TAILQ_EMPTY(&w->panes))
340: TAILQ_INSERT_HEAD(&w->panes, wp, entry);
341: else
342: TAILQ_INSERT_AFTER(&w->panes, w->active, wp, entry);
343: return (wp);
344: }
345:
346: void
347: window_remove_pane(struct window *w, struct window_pane *wp)
348: {
349: w->active = TAILQ_PREV(wp, window_panes, entry);
350: if (w->active == NULL)
351: w->active = TAILQ_NEXT(wp, entry);
352:
353: TAILQ_REMOVE(&w->panes, wp, entry);
354: window_pane_destroy(wp);
355: }
356:
357: struct window_pane *
358: window_pane_at_index(struct window *w, u_int idx)
359: {
360: struct window_pane *wp;
361: u_int n;
362:
363: n = 0;
364: TAILQ_FOREACH(wp, &w->panes, entry) {
365: if (n == idx)
366: return (wp);
367: n++;
368: }
369: return (NULL);
1.13 nicm 370: }
371:
372: u_int
373: window_pane_index(struct window *w, struct window_pane *wp)
374: {
375: struct window_pane *wq;
376: u_int n;
377:
378: n = 0;
379: TAILQ_FOREACH(wq, &w->panes, entry) {
380: if (wp == wq)
381: break;
382: n++;
383: }
384: return (n);
1.1 nicm 385: }
386:
387: u_int
388: window_count_panes(struct window *w)
389: {
390: struct window_pane *wp;
391: u_int n;
392:
393: n = 0;
394: TAILQ_FOREACH(wp, &w->panes, entry)
395: n++;
396: return (n);
397: }
398:
399: void
400: window_destroy_panes(struct window *w)
401: {
402: struct window_pane *wp;
403:
404: while (!TAILQ_EMPTY(&w->panes)) {
405: wp = TAILQ_FIRST(&w->panes);
406: TAILQ_REMOVE(&w->panes, wp, entry);
407: window_pane_destroy(wp);
408: }
409: }
410:
411: struct window_pane *
412: window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
413: {
414: struct window_pane *wp;
415:
416: wp = xcalloc(1, sizeof *wp);
417: wp->window = w;
418:
419: wp->cmd = NULL;
1.23 nicm 420: wp->shell = NULL;
1.1 nicm 421: wp->cwd = NULL;
422:
423: wp->fd = -1;
1.37 nicm 424: wp->event = NULL;
1.1 nicm 425:
426: wp->mode = NULL;
1.14 nicm 427:
428: wp->layout_cell = NULL;
1.1 nicm 429:
430: wp->xoff = 0;
1.42 nicm 431: wp->yoff = 0;
1.1 nicm 432:
433: wp->sx = sx;
434: wp->sy = sy;
435:
1.32 nicm 436: wp->pipe_fd = -1;
437: wp->pipe_off = 0;
1.36 nicm 438: wp->pipe_event = NULL;
1.32 nicm 439:
1.9 nicm 440: wp->saved_grid = NULL;
441:
1.1 nicm 442: screen_init(&wp->base, sx, sy, hlimit);
443: wp->screen = &wp->base;
444:
445: input_init(wp);
446:
447: return (wp);
448: }
449:
450: void
451: window_pane_destroy(struct window_pane *wp)
452: {
1.37 nicm 453: if (wp->fd != -1) {
1.1 nicm 454: close(wp->fd);
1.37 nicm 455: bufferevent_free(wp->event);
456: }
1.1 nicm 457:
458: input_free(wp);
459:
460: window_pane_reset_mode(wp);
461: screen_free(&wp->base);
1.9 nicm 462: if (wp->saved_grid != NULL)
463: grid_destroy(wp->saved_grid);
1.1 nicm 464:
1.32 nicm 465: if (wp->pipe_fd != -1) {
466: close(wp->pipe_fd);
1.36 nicm 467: bufferevent_free(wp->pipe_event);
1.32 nicm 468: }
469:
1.1 nicm 470: if (wp->cwd != NULL)
471: xfree(wp->cwd);
1.23 nicm 472: if (wp->shell != NULL)
473: xfree(wp->shell);
1.1 nicm 474: if (wp->cmd != NULL)
475: xfree(wp->cmd);
476: xfree(wp);
477: }
478:
479: int
1.23 nicm 480: window_pane_spawn(struct window_pane *wp, const char *cmd, const char *shell,
1.21 nicm 481: const char *cwd, struct environ *env, struct termios *tio, char **cause)
1.1 nicm 482: {
1.18 nicm 483: struct winsize ws;
484: int mode;
485: char *argv0, **varp, *var;
486: ARRAY_DECL(, char *) varlist;
487: struct environ_entry *envent;
488: const char *ptr;
1.25 nicm 489: struct termios tio2;
1.18 nicm 490: u_int i;
1.1 nicm 491:
1.37 nicm 492: if (wp->fd != -1) {
1.1 nicm 493: close(wp->fd);
1.37 nicm 494: bufferevent_free(wp->event);
495: }
1.1 nicm 496: if (cmd != NULL) {
497: if (wp->cmd != NULL)
498: xfree(wp->cmd);
499: wp->cmd = xstrdup(cmd);
500: }
1.23 nicm 501: if (shell != NULL) {
502: if (wp->shell != NULL)
503: xfree(wp->shell);
504: wp->shell = xstrdup(shell);
505: }
1.1 nicm 506: if (cwd != NULL) {
507: if (wp->cwd != NULL)
508: xfree(wp->cwd);
509: wp->cwd = xstrdup(cwd);
510: }
511:
512: memset(&ws, 0, sizeof ws);
513: ws.ws_col = screen_size_x(&wp->base);
514: ws.ws_row = screen_size_y(&wp->base);
515:
1.42 nicm 516: switch (wp->pid = forkpty(&wp->fd, wp->tty, NULL, &ws)) {
1.1 nicm 517: case -1:
518: wp->fd = -1;
519: xasprintf(cause, "%s: %s", cmd, strerror(errno));
520: return (-1);
521: case 0:
522: if (chdir(wp->cwd) != 0)
523: chdir("/");
1.25 nicm 524:
525: if (tcgetattr(STDIN_FILENO, &tio2) != 0)
526: fatal("tcgetattr failed");
527: if (tio != NULL)
528: memcpy(tio2.c_cc, tio->c_cc, sizeof tio2.c_cc);
529: tio2.c_cc[VERASE] = '\177';
530: if (tcsetattr(STDIN_FILENO, TCSANOW, &tio2) != 0)
531: fatal("tcgetattr failed");
1.18 nicm 532:
533: ARRAY_INIT(&varlist);
534: for (varp = environ; *varp != NULL; varp++) {
535: var = xstrdup(*varp);
536: var[strcspn(var, "=")] = '\0';
537: ARRAY_ADD(&varlist, var);
538: }
539: for (i = 0; i < ARRAY_LENGTH(&varlist); i++) {
540: var = ARRAY_ITEM(&varlist, i);
541: unsetenv(var);
1.1 nicm 542: }
1.18 nicm 543: RB_FOREACH(envent, environ, env) {
544: if (envent->value != NULL)
545: setenv(envent->name, envent->value, 1);
546: }
547:
1.35 nicm 548: server_signal_clear();
1.1 nicm 549: log_close();
550:
1.8 nicm 551: if (*wp->cmd != '\0') {
1.24 nicm 552: /* Set SHELL but only if it is currently not useful. */
553: shell = getenv("SHELL");
554: if (shell == NULL || *shell == '\0' || areshell(shell))
555: setenv("SHELL", wp->shell, 1);
556:
1.8 nicm 557: execl(_PATH_BSHELL, "sh", "-c", wp->cmd, (char *) NULL);
558: fatal("execl failed");
559: }
560:
561: /* No command; fork a login shell. */
1.23 nicm 562: ptr = strrchr(wp->shell, '/');
563: if (ptr != NULL && *(ptr + 1) != '\0')
1.8 nicm 564: xasprintf(&argv0, "-%s", ptr + 1);
565: else
1.23 nicm 566: xasprintf(&argv0, "-%s", wp->shell);
1.24 nicm 567: setenv("SHELL", wp->shell, 1);
1.23 nicm 568: execl(wp->shell, argv0, (char *) NULL);
1.1 nicm 569: fatal("execl failed");
570: }
571:
572: if ((mode = fcntl(wp->fd, F_GETFL)) == -1)
573: fatal("fcntl failed");
574: if (fcntl(wp->fd, F_SETFL, mode|O_NONBLOCK) == -1)
575: fatal("fcntl failed");
576: if (fcntl(wp->fd, F_SETFD, FD_CLOEXEC) == -1)
577: fatal("fcntl failed");
1.37 nicm 578: wp->event = bufferevent_new(wp->fd,
579: window_pane_read_callback, NULL, window_pane_error_callback, wp);
580: bufferevent_enable(wp->event, EV_READ|EV_WRITE);
1.1 nicm 581:
582: return (0);
583: }
584:
1.41 nicm 585: /* ARGSUSED */
1.15 nicm 586: void
1.37 nicm 587: window_pane_read_callback(unused struct bufferevent *bufev, void *data)
588: {
1.46 ! nicm 589: struct window_pane *wp = data;
! 590: char *new_data;
! 591: size_t new_size;
! 592:
! 593: new_size = EVBUFFER_LENGTH(wp->event->input) - wp->pipe_off;
! 594: if (wp->pipe_fd != -1 && new_size > 0) {
! 595: new_data = EVBUFFER_DATA(wp->event->input);
! 596: bufferevent_write(wp->pipe_event, new_data, new_size);
! 597: }
! 598:
! 599: input_parse(wp);
1.37 nicm 600:
1.46 ! nicm 601: wp->pipe_off = EVBUFFER_LENGTH(wp->event->input);
1.37 nicm 602: }
603:
1.41 nicm 604: /* ARGSUSED */
1.37 nicm 605: void
606: window_pane_error_callback(
607: unused struct bufferevent *bufev, unused short what, void *data)
608: {
609: struct window_pane *wp = data;
610:
1.39 nicm 611: server_destroy_pane(wp);
1.37 nicm 612: }
613:
614: void
1.1 nicm 615: window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
616: {
617: struct winsize ws;
618:
619: if (sx == wp->sx && sy == wp->sy)
1.15 nicm 620: return;
1.1 nicm 621: wp->sx = sx;
622: wp->sy = sy;
623:
624: memset(&ws, 0, sizeof ws);
625: ws.ws_col = sx;
626: ws.ws_row = sy;
627:
628: screen_resize(&wp->base, sx, sy);
629: if (wp->mode != NULL)
630: wp->mode->resize(wp, sx, sy);
631:
632: if (wp->fd != -1 && ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
633: fatal("ioctl failed");
1.44 nicm 634: }
635:
636: /*
637: * Enter alternative screen mode. A copy of the visible screen is saved and the
638: * history is not updated
639: */
640: void
641: window_pane_alternate_on(struct window_pane *wp, struct grid_cell *gc)
642: {
643: struct screen *s = &wp->base;
644: u_int sx, sy;
645:
646: if (wp->saved_grid != NULL)
647: return;
648: if (!options_get_number(&wp->window->options, "alternate-screen"))
649: return;
650: sx = screen_size_x(s);
651: sy = screen_size_y(s);
652:
653: wp->saved_grid = grid_create(sx, sy, 0);
654: grid_duplicate_lines(wp->saved_grid, 0, s->grid, screen_hsize(s), sy);
655: wp->saved_cx = s->cx;
656: wp->saved_cy = s->cy;
657: memcpy(&wp->saved_cell, gc, sizeof wp->saved_cell);
658:
659: grid_view_clear(s->grid, 0, 0, sx, sy);
660:
661: wp->base.grid->flags &= ~GRID_HISTORY;
662:
663: wp->flags |= PANE_REDRAW;
664: }
665:
666: /* Exit alternate screen mode and restore the copied grid. */
667: void
668: window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc)
669: {
670: struct screen *s = &wp->base;
671: u_int sx, sy;
672:
673: if (wp->saved_grid == NULL)
674: return;
675: if (!options_get_number(&wp->window->options, "alternate-screen"))
676: return;
677: sx = screen_size_x(s);
678: sy = screen_size_y(s);
679:
680: /*
681: * If the current size is bigger, temporarily resize to the old size
682: * before copying back.
683: */
684: if (sy > wp->saved_grid->sy)
685: screen_resize(s, sx, wp->saved_grid->sy);
686:
687: /* Restore the grid, cursor position and cell. */
688: grid_duplicate_lines(s->grid, screen_hsize(s), wp->saved_grid, 0, sy);
689: s->cx = wp->saved_cx;
690: if (s->cx > screen_size_x(s) - 1)
691: s->cx = screen_size_x(s) - 1;
692: s->cy = wp->saved_cy;
693: if (s->cy > screen_size_y(s) - 1)
694: s->cy = screen_size_y(s) - 1;
695: memcpy(gc, &wp->saved_cell, sizeof *gc);
696:
697: /*
698: * Turn history back on (so resize can use it) and then resize back to
699: * the current size.
700: */
701: wp->base.grid->flags |= GRID_HISTORY;
702: if (sy > wp->saved_grid->sy)
703: screen_resize(s, sx, sy);
704:
705: grid_destroy(wp->saved_grid);
706: wp->saved_grid = NULL;
707:
708: wp->flags |= PANE_REDRAW;
1.1 nicm 709: }
710:
711: int
712: window_pane_set_mode(struct window_pane *wp, const struct window_mode *mode)
713: {
714: struct screen *s;
715:
1.15 nicm 716: if (wp->mode != NULL)
1.1 nicm 717: return (1);
718: wp->mode = mode;
719:
720: if ((s = wp->mode->init(wp)) != NULL)
721: wp->screen = s;
1.34 nicm 722: wp->flags |= PANE_REDRAW;
1.1 nicm 723: return (0);
724: }
725:
726: void
727: window_pane_reset_mode(struct window_pane *wp)
728: {
729: if (wp->mode == NULL)
730: return;
731:
732: wp->mode->free(wp);
733: wp->mode = NULL;
734:
735: wp->screen = &wp->base;
1.34 nicm 736: wp->flags |= PANE_REDRAW;
1.1 nicm 737: }
738:
739: void
740: window_pane_key(struct window_pane *wp, struct client *c, int key)
741: {
1.27 nicm 742: struct window_pane *wp2;
743:
1.30 nicm 744: if (!window_pane_visible(wp))
1.3 nicm 745: return;
746:
1.1 nicm 747: if (wp->mode != NULL) {
748: if (wp->mode->key != NULL)
749: wp->mode->key(wp, c, key);
1.27 nicm 750: return;
1.30 nicm 751: }
1.27 nicm 752:
1.30 nicm 753: if (wp->fd == -1)
754: return;
1.27 nicm 755: input_key(wp, key);
756: if (options_get_number(&wp->window->options, "synchronize-panes")) {
757: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
758: if (wp2 == wp || wp2->mode != NULL)
759: continue;
760: if (wp2->fd != -1 && window_pane_visible(wp2))
761: input_key(wp2, key);
762: }
763: }
1.1 nicm 764: }
765:
766: void
767: window_pane_mouse(
1.31 nicm 768: struct window_pane *wp, struct client *c, struct mouse_event *m)
1.1 nicm 769: {
1.30 nicm 770: if (!window_pane_visible(wp))
1.3 nicm 771: return;
772:
1.31 nicm 773: if (m->x < wp->xoff || m->x >= wp->xoff + wp->sx)
1.1 nicm 774: return;
1.31 nicm 775: if (m->y < wp->yoff || m->y >= wp->yoff + wp->sy)
1.1 nicm 776: return;
1.31 nicm 777: m->x -= wp->xoff;
778: m->y -= wp->yoff;
1.1 nicm 779:
780: if (wp->mode != NULL) {
781: if (wp->mode->mouse != NULL)
1.31 nicm 782: wp->mode->mouse(wp, c, m);
1.30 nicm 783: } else if (wp->fd != -1)
1.31 nicm 784: input_mouse(wp, m);
1.10 nicm 785: }
786:
787: int
788: window_pane_visible(struct window_pane *wp)
789: {
790: struct window *w = wp->window;
791:
792: if (wp->xoff >= w->sx || wp->yoff >= w->sy)
793: return (0);
794: if (wp->xoff + wp->sx > w->sx || wp->yoff + wp->sy > w->sy)
795: return (0);
796: return (1);
1.1 nicm 797: }
798:
799: char *
1.5 nicm 800: window_pane_search(struct window_pane *wp, const char *searchstr, u_int *lineno)
1.1 nicm 801: {
1.4 nicm 802: struct screen *s = &wp->base;
1.5 nicm 803: char *newsearchstr, *line, *msg;
1.4 nicm 804: u_int i;
805:
1.5 nicm 806: msg = NULL;
807: xasprintf(&newsearchstr, "*%s*", searchstr);
808:
1.4 nicm 809: for (i = 0; i < screen_size_y(s); i++) {
810: line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
1.5 nicm 811: if (fnmatch(newsearchstr, line, 0) == 0) {
812: msg = line;
813: if (lineno != NULL)
814: *lineno = i;
815: break;
816: }
1.4 nicm 817: xfree(line);
818: }
1.5 nicm 819:
820: xfree(newsearchstr);
821: return (msg);
1.45 nicm 822: }
823:
824: /* Find the pane directly above another. */
825: struct window_pane *
826: window_pane_find_up(struct window_pane *wp)
827: {
828: struct window_pane *wp2;
829: u_int left, top;
830:
831: if (wp == NULL || !window_pane_visible(wp))
832: return (NULL);
833:
834: top = wp->yoff;
835: if (top == 0)
836: top = wp->window->sy + 1;
837: left = wp->xoff;
838:
839: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
840: if (!window_pane_visible(wp2))
841: continue;
842: if (wp2->yoff + wp2->sy + 1 != top)
843: continue;
844: if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
845: return (wp2);
846: }
847: return (NULL);
848: }
849:
850: /* Find the pane directly below another. */
851: struct window_pane *
852: window_pane_find_down(struct window_pane *wp)
853: {
854: struct window_pane *wp2;
855: u_int left, bottom;
856:
857: if (wp == NULL || !window_pane_visible(wp))
858: return (NULL);
859:
860: bottom = wp->yoff + wp->sy + 1;
861: if (bottom >= wp->window->sy)
862: bottom = 0;
863: left = wp->xoff;
864:
865: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
866: if (!window_pane_visible(wp2))
867: continue;
868: if (wp2->yoff != bottom)
869: continue;
870: if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
871: return (wp2);
872: }
873: return (NULL);
874: }
875:
876: /*
877: * Find the pane directly to the left of another, adjacent to the left side and
878: * containing the top edge.
879: */
880: struct window_pane *
881: window_pane_find_left(struct window_pane *wp)
882: {
883: struct window_pane *wp2;
884: u_int left, top;
885:
886: if (wp == NULL || !window_pane_visible(wp))
887: return (NULL);
888:
889: left = wp->xoff;
890: if (left == 0)
891: left = wp->window->sx + 1;
892: top = wp->yoff;
893:
894: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
895: if (!window_pane_visible(wp2))
896: continue;
897: if (wp2->xoff + wp2->sx + 1 != left)
898: continue;
899: if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
900: return (wp2);
901: }
902: return (NULL);
903: }
904:
905: /*
906: * Find the pane directly to the right of another, that is adjacent to the
907: * right edge and including the top edge.
908: */
909: struct window_pane *
910: window_pane_find_right(struct window_pane *wp)
911: {
912: struct window_pane *wp2;
913: u_int right, top;
914:
915: if (wp == NULL || !window_pane_visible(wp))
916: return (NULL);
917:
918: right = wp->xoff + wp->sx + 1;
919: if (right >= wp->window->sx)
920: right = 0;
921: top = wp->yoff;
922:
923: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
924: if (!window_pane_visible(wp2))
925: continue;
926: if (wp2->xoff != right)
927: continue;
928: if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
929: return (wp2);
930: }
931: return (NULL);
1.1 nicm 932: }
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