Annotation of src/usr.bin/tmux/window.c, Revision 1.179
1.179 ! nicm 1: /* $OpenBSD: window.c,v 1.178 2017/01/12 00:19:32 nicm Exp $ */
1.1 nicm 2:
3: /*
1.156 nicm 4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1 nicm 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>
1.162 nicm 20: #include <sys/ioctl.h>
1.1 nicm 21:
22: #include <errno.h>
23: #include <fcntl.h>
1.5 nicm 24: #include <fnmatch.h>
1.1 nicm 25: #include <stdint.h>
26: #include <stdlib.h>
27: #include <string.h>
28: #include <termios.h>
1.163 nicm 29: #include <time.h>
1.1 nicm 30: #include <unistd.h>
31: #include <util.h>
32:
33: #include "tmux.h"
34:
35: /*
1.14 nicm 36: * Each window is attached to a number of panes, each of which is a pty. This
1.1 nicm 37: * file contains code to handle them.
38: *
39: * A pane has two buffers attached, these are filled and emptied by the main
40: * server poll loop. Output data is received from pty's in screen format,
41: * translated and returned as a series of escape sequences and strings via
42: * input_parse (in input.c). Input data is received as key codes and written
43: * directly via input_key.
44: *
45: * Each pane also has a "virtual" screen (screen.c) which contains the current
46: * state and is redisplayed when the window is reattached to a client.
47: *
48: * Windows are stored directly on a global array and wrapped in any number of
49: * winlink structs to be linked onto local session RB trees. A reference count
50: * is maintained and a window removed from the global list and destroyed when
51: * it reaches zero.
52: */
1.124 nicm 53:
1.1 nicm 54: /* Global window list. */
55: struct windows windows;
56:
1.64 nicm 57: /* Global panes tree. */
58: struct window_pane_tree all_window_panes;
1.166 nicm 59: static u_int next_window_pane_id;
60: static u_int next_window_id;
61: static u_int next_active_point;
1.37 nicm 62:
1.174 nicm 63: static void window_destroy(struct window *);
64:
1.169 nicm 65: static struct window_pane *window_pane_create(struct window *, u_int, u_int,
66: u_int);
67: static void window_pane_destroy(struct window_pane *);
68:
1.166 nicm 69: static void window_pane_set_watermark(struct window_pane *, size_t);
70:
71: static void window_pane_read_callback(struct bufferevent *, void *);
72: static void window_pane_error_callback(struct bufferevent *, short, void *);
73:
1.169 nicm 74: static int winlink_next_index(struct winlinks *, int);
75:
1.166 nicm 76: static struct window_pane *window_pane_choose_best(struct window_pane **,
77: u_int);
1.109 nicm 78:
1.122 nicm 79: RB_GENERATE(windows, window, entry, window_cmp);
1.169 nicm 80: RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
81: RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
1.122 nicm 82:
83: int
84: window_cmp(struct window *w1, struct window *w2)
85: {
86: return (w1->id - w2->id);
87: }
88:
1.1 nicm 89: int
90: winlink_cmp(struct winlink *wl1, struct winlink *wl2)
91: {
92: return (wl1->idx - wl2->idx);
1.12 nicm 93: }
94:
1.64 nicm 95: int
96: window_pane_cmp(struct window_pane *wp1, struct window_pane *wp2)
97: {
98: return (wp1->id - wp2->id);
99: }
100:
1.12 nicm 101: struct winlink *
102: winlink_find_by_window(struct winlinks *wwl, struct window *w)
103: {
104: struct winlink *wl;
105:
106: RB_FOREACH(wl, winlinks, wwl) {
107: if (wl->window == w)
108: return (wl);
109: }
110:
111: return (NULL);
1.1 nicm 112: }
113:
114: struct winlink *
115: winlink_find_by_index(struct winlinks *wwl, int idx)
116: {
117: struct winlink wl;
118:
119: if (idx < 0)
120: fatalx("bad index");
121:
122: wl.idx = idx;
123: return (RB_FIND(winlinks, wwl, &wl));
124: }
125:
1.71 nicm 126: struct winlink *
127: winlink_find_by_window_id(struct winlinks *wwl, u_int id)
128: {
129: struct winlink *wl;
130:
131: RB_FOREACH(wl, winlinks, wwl) {
132: if (wl->window->id == id)
133: return (wl);
134: }
1.78 nicm 135: return (NULL);
1.71 nicm 136: }
137:
1.169 nicm 138: static int
1.22 nicm 139: winlink_next_index(struct winlinks *wwl, int idx)
1.1 nicm 140: {
1.22 nicm 141: int i;
1.1 nicm 142:
1.22 nicm 143: i = idx;
144: do {
1.1 nicm 145: if (winlink_find_by_index(wwl, i) == NULL)
146: return (i);
1.22 nicm 147: if (i == INT_MAX)
148: i = 0;
149: else
150: i++;
151: } while (i != idx);
152: return (-1);
1.1 nicm 153: }
154:
155: u_int
156: winlink_count(struct winlinks *wwl)
157: {
158: struct winlink *wl;
159: u_int n;
160:
161: n = 0;
162: RB_FOREACH(wl, winlinks, wwl)
163: n++;
164:
165: return (n);
166: }
167:
168: struct winlink *
1.63 nicm 169: winlink_add(struct winlinks *wwl, int idx)
1.1 nicm 170: {
171: struct winlink *wl;
172:
1.22 nicm 173: if (idx < 0) {
174: if ((idx = winlink_next_index(wwl, -idx - 1)) == -1)
175: return (NULL);
176: } else if (winlink_find_by_index(wwl, idx) != NULL)
1.1 nicm 177: return (NULL);
178:
179: wl = xcalloc(1, sizeof *wl);
180: wl->idx = idx;
181: RB_INSERT(winlinks, wwl, wl);
182:
1.63 nicm 183: return (wl);
184: }
185:
186: void
187: winlink_set_window(struct winlink *wl, struct window *w)
188: {
1.174 nicm 189: if (wl->window != NULL) {
190: TAILQ_REMOVE(&wl->window->winlinks, wl, wentry);
191: window_remove_ref(w);
192: }
193: TAILQ_INSERT_TAIL(&w->winlinks, wl, wentry);
1.63 nicm 194: wl->window = w;
1.1 nicm 195: w->references++;
196: }
197:
198: void
199: winlink_remove(struct winlinks *wwl, struct winlink *wl)
200: {
201: struct window *w = wl->window;
202:
1.174 nicm 203: if (w != NULL) {
204: TAILQ_REMOVE(&w->winlinks, wl, wentry);
205: window_remove_ref(w);
206: }
207:
1.1 nicm 208: RB_REMOVE(winlinks, wwl, wl);
1.82 nicm 209: free(wl->status_text);
210: free(wl);
1.1 nicm 211: }
212:
213: struct winlink *
1.41 nicm 214: winlink_next(struct winlink *wl)
1.1 nicm 215: {
216: return (RB_NEXT(winlinks, wwl, wl));
217: }
218:
219: struct winlink *
1.41 nicm 220: winlink_previous(struct winlink *wl)
1.1 nicm 221: {
222: return (RB_PREV(winlinks, wwl, wl));
1.52 nicm 223: }
224:
225: struct winlink *
1.53 nicm 226: winlink_next_by_number(struct winlink *wl, struct session *s, int n)
1.52 nicm 227: {
228: for (; n > 0; n--) {
229: if ((wl = RB_NEXT(winlinks, wwl, wl)) == NULL)
1.53 nicm 230: wl = RB_MIN(winlinks, &s->windows);
1.52 nicm 231: }
232:
233: return (wl);
234: }
235:
236: struct winlink *
1.53 nicm 237: winlink_previous_by_number(struct winlink *wl, struct session *s, int n)
1.52 nicm 238: {
239: for (; n > 0; n--) {
240: if ((wl = RB_PREV(winlinks, wwl, wl)) == NULL)
1.53 nicm 241: wl = RB_MAX(winlinks, &s->windows);
1.52 nicm 242: }
243:
244: return (wl);
1.1 nicm 245: }
246:
247: void
248: winlink_stack_push(struct winlink_stack *stack, struct winlink *wl)
249: {
250: if (wl == NULL)
251: return;
252:
253: winlink_stack_remove(stack, wl);
1.28 nicm 254: TAILQ_INSERT_HEAD(stack, wl, sentry);
1.1 nicm 255: }
256:
257: void
258: winlink_stack_remove(struct winlink_stack *stack, struct winlink *wl)
259: {
260: struct winlink *wl2;
261:
262: if (wl == NULL)
263: return;
1.42 nicm 264:
1.28 nicm 265: TAILQ_FOREACH(wl2, stack, sentry) {
1.1 nicm 266: if (wl2 == wl) {
1.28 nicm 267: TAILQ_REMOVE(stack, wl, sentry);
1.1 nicm 268: return;
269: }
270: }
271: }
272:
273: struct window *
1.125 nicm 274: window_find_by_id_str(const char *s)
1.123 nicm 275: {
276: const char *errstr;
277: u_int id;
278:
279: if (*s != '@')
280: return (NULL);
281:
282: id = strtonum(s + 1, 0, UINT_MAX, &errstr);
283: if (errstr != NULL)
284: return (NULL);
285: return (window_find_by_id(id));
286: }
287:
288: struct window *
1.71 nicm 289: window_find_by_id(u_int id)
290: {
1.122 nicm 291: struct window w;
1.71 nicm 292:
1.122 nicm 293: w.id = id;
294: return (RB_FIND(windows, &windows, &w));
1.71 nicm 295: }
296:
1.143 nicm 297: void
298: window_update_activity(struct window *w)
299: {
300: gettimeofday(&w->activity_time, NULL);
301: alerts_queue(w, WINDOW_ACTIVITY);
302: }
303:
1.71 nicm 304: struct window *
1.171 nicm 305: window_create(u_int sx, u_int sy)
1.1 nicm 306: {
307: struct window *w;
308:
1.38 nicm 309: w = xcalloc(1, sizeof *w);
1.1 nicm 310: w->name = NULL;
1.160 nicm 311: w->flags = WINDOW_STYLECHANGED;
1.1 nicm 312:
313: TAILQ_INIT(&w->panes);
314: w->active = NULL;
1.14 nicm 315:
1.17 nicm 316: w->lastlayout = -1;
1.14 nicm 317: w->layout_root = NULL;
1.42 nicm 318:
1.1 nicm 319: w->sx = sx;
320: w->sy = sy;
1.133 nicm 321:
1.146 nicm 322: w->options = options_create(global_w_options);
1.1 nicm 323:
324: w->references = 0;
1.174 nicm 325: TAILQ_INIT(&w->winlinks);
1.1 nicm 326:
1.122 nicm 327: w->id = next_window_id++;
1.129 nicm 328: RB_INSERT(windows, &windows, w);
1.122 nicm 329:
1.143 nicm 330: window_update_activity(w);
331:
1.1 nicm 332: return (w);
333: }
334:
335: struct window *
1.171 nicm 336: window_create_spawn(const char *name, int argc, char **argv, const char *path,
1.147 nicm 337: const char *shell, const char *cwd, struct environ *env,
338: struct termios *tio, u_int sx, u_int sy, u_int hlimit, char **cause)
1.1 nicm 339: {
1.14 nicm 340: struct window *w;
341: struct window_pane *wp;
1.1 nicm 342:
1.171 nicm 343: w = window_create(sx, sy);
1.161 nicm 344: wp = window_add_pane(w, NULL, hlimit);
1.93 nicm 345: layout_init(w, wp);
1.91 nicm 346:
1.171 nicm 347: if (window_pane_spawn(wp, argc, argv, path, shell, cwd,
348: env, tio, cause) != 0) {
1.1 nicm 349: window_destroy(w);
350: return (NULL);
351: }
1.91 nicm 352:
1.1 nicm 353: w->active = TAILQ_FIRST(&w->panes);
354: if (name != NULL) {
355: w->name = xstrdup(name);
1.146 nicm 356: options_set_number(w->options, "automatic-rename", 0);
1.1 nicm 357: } else
358: w->name = default_window_name(w);
1.91 nicm 359:
1.1 nicm 360: return (w);
361: }
362:
1.174 nicm 363: static void
1.1 nicm 364: window_destroy(struct window *w)
365: {
1.174 nicm 366: if (!TAILQ_EMPTY(&w->winlinks))
367: fatalx("window destroyed with winlinks");
368:
1.122 nicm 369: RB_REMOVE(windows, &windows, w);
1.1 nicm 370:
1.14 nicm 371: if (w->layout_root != NULL)
1.135 nicm 372: layout_free_cell(w->layout_root);
373: if (w->saved_layout_root != NULL)
374: layout_free_cell(w->saved_layout_root);
1.127 nicm 375: free(w->old_layout);
1.139 nicm 376:
1.141 nicm 377: if (event_initialized(&w->name_event))
378: evtimer_del(&w->name_event);
1.38 nicm 379:
1.143 nicm 380: if (event_initialized(&w->alerts_timer))
381: evtimer_del(&w->alerts_timer);
382:
1.146 nicm 383: options_free(w->options);
1.1 nicm 384:
385: window_destroy_panes(w);
386:
1.82 nicm 387: free(w->name);
388: free(w);
1.84 nicm 389: }
390:
391: void
392: window_remove_ref(struct window *w)
393: {
394: if (w->references == 0)
395: fatal("bad reference count");
396: w->references--;
397: if (w->references == 0)
398: window_destroy(w);
1.72 nicm 399: }
400:
401: void
402: window_set_name(struct window *w, const char *new_name)
403: {
1.82 nicm 404: free(w->name);
1.72 nicm 405: w->name = xstrdup(new_name);
1.172 nicm 406: notify_window("window-renamed", w);
1.1 nicm 407: }
408:
1.15 nicm 409: void
1.1 nicm 410: window_resize(struct window *w, u_int sx, u_int sy)
411: {
412: w->sx = sx;
413: w->sy = sy;
414: }
415:
1.114 nicm 416: int
1.118 nicm 417: window_has_pane(struct window *w, struct window_pane *wp)
418: {
419: struct window_pane *wp1;
420:
421: TAILQ_FOREACH(wp1, &w->panes, entry) {
422: if (wp1 == wp)
423: return (1);
424: }
425: return (0);
426: }
427:
428: int
1.1 nicm 429: window_set_active_pane(struct window *w, struct window_pane *wp)
430: {
1.59 nicm 431: if (wp == w->active)
1.114 nicm 432: return (0);
1.58 nicm 433: w->last = w->active;
1.1 nicm 434: w->active = wp;
1.10 nicm 435: while (!window_pane_visible(w->active)) {
1.1 nicm 436: w->active = TAILQ_PREV(w->active, window_panes, entry);
1.10 nicm 437: if (w->active == NULL)
438: w->active = TAILQ_LAST(&w->panes, window_panes);
439: if (w->active == wp)
1.114 nicm 440: return (1);
1.29 nicm 441: }
1.109 nicm 442: w->active->active_point = next_active_point++;
1.136 nicm 443: w->active->flags |= PANE_CHANGED;
1.114 nicm 444: return (1);
1.145 nicm 445: }
446:
447: void
448: window_redraw_active_switch(struct window *w, struct window_pane *wp)
449: {
1.177 nicm 450: const struct grid_cell *gc;
1.145 nicm 451:
452: if (wp == w->active)
453: return;
454:
455: /*
456: * If window-style and window-active-style are the same, we don't need
1.177 nicm 457: * to redraw panes when switching active panes.
1.145 nicm 458: */
1.177 nicm 459: gc = options_get_style(w->options, "window-active-style");
460: if (style_equal(gc, options_get_style(w->options, "window-style")))
1.145 nicm 461: return;
1.177 nicm 462:
463: /*
464: * If the now active or inactive pane do not have a custom style or if
465: * the palette is different, they need to be redrawn.
466: */
1.178 nicm 467: if (window_pane_get_palette(w->active, w->active->colgc.fg) != -1 ||
468: window_pane_get_palette(w->active, w->active->colgc.bg) != -1 ||
1.177 nicm 469: style_equal(&grid_default_cell, &w->active->colgc))
1.145 nicm 470: w->active->flags |= PANE_REDRAW;
1.178 nicm 471: if (window_pane_get_palette(wp, wp->colgc.fg) != -1 ||
472: window_pane_get_palette(wp, wp->colgc.bg) != -1 ||
1.177 nicm 473: style_equal(&grid_default_cell, &wp->colgc))
1.145 nicm 474: wp->flags |= PANE_REDRAW;
1.29 nicm 475: }
476:
1.66 nicm 477: struct window_pane *
478: window_get_active_at(struct window *w, u_int x, u_int y)
1.29 nicm 479: {
480: struct window_pane *wp;
481:
482: TAILQ_FOREACH(wp, &w->panes, entry) {
1.66 nicm 483: if (!window_pane_visible(wp))
1.29 nicm 484: continue;
1.66 nicm 485: if (x < wp->xoff || x > wp->xoff + wp->sx)
1.29 nicm 486: continue;
1.66 nicm 487: if (y < wp->yoff || y > wp->yoff + wp->sy)
1.29 nicm 488: continue;
1.66 nicm 489: return (wp);
490: }
491: return (NULL);
492: }
493:
494: struct window_pane *
495: window_find_string(struct window *w, const char *s)
496: {
497: u_int x, y;
498:
499: x = w->sx / 2;
500: y = w->sy / 2;
501:
502: if (strcasecmp(s, "top") == 0)
503: y = 0;
504: else if (strcasecmp(s, "bottom") == 0)
505: y = w->sy - 1;
506: else if (strcasecmp(s, "left") == 0)
507: x = 0;
508: else if (strcasecmp(s, "right") == 0)
509: x = w->sx - 1;
510: else if (strcasecmp(s, "top-left") == 0) {
511: x = 0;
512: y = 0;
513: } else if (strcasecmp(s, "top-right") == 0) {
514: x = w->sx - 1;
515: y = 0;
516: } else if (strcasecmp(s, "bottom-left") == 0) {
517: x = 0;
518: y = w->sy - 1;
519: } else if (strcasecmp(s, "bottom-right") == 0) {
520: x = w->sx - 1;
521: y = w->sy - 1;
522: } else
523: return (NULL);
524:
525: return (window_get_active_at(w, x, y));
1.1 nicm 526: }
527:
1.93 nicm 528: int
529: window_zoom(struct window_pane *wp)
530: {
531: struct window *w = wp->window;
532: struct window_pane *wp1;
533:
534: if (w->flags & WINDOW_ZOOMED)
535: return (-1);
536:
537: if (!window_pane_visible(wp))
538: return (-1);
1.94 nicm 539:
540: if (window_count_panes(w) == 1)
541: return (-1);
542:
1.93 nicm 543: if (w->active != wp)
544: window_set_active_pane(w, wp);
545:
546: TAILQ_FOREACH(wp1, &w->panes, entry) {
547: wp1->saved_layout_cell = wp1->layout_cell;
548: wp1->layout_cell = NULL;
549: }
550:
551: w->saved_layout_root = w->layout_root;
552: layout_init(w, wp);
553: w->flags |= WINDOW_ZOOMED;
1.172 nicm 554: notify_window("window-layout-changed", w);
1.93 nicm 555:
556: return (0);
557: }
558:
559: int
560: window_unzoom(struct window *w)
561: {
1.97 nicm 562: struct window_pane *wp;
1.93 nicm 563:
564: if (!(w->flags & WINDOW_ZOOMED))
565: return (-1);
566:
567: w->flags &= ~WINDOW_ZOOMED;
568: layout_free(w);
569: w->layout_root = w->saved_layout_root;
1.120 nicm 570: w->saved_layout_root = NULL;
1.93 nicm 571:
1.97 nicm 572: TAILQ_FOREACH(wp, &w->panes, entry) {
573: wp->layout_cell = wp->saved_layout_cell;
574: wp->saved_layout_cell = NULL;
1.93 nicm 575: }
576: layout_fix_panes(w, w->sx, w->sy);
1.172 nicm 577: notify_window("window-layout-changed", w);
1.93 nicm 578:
579: return (0);
580: }
581:
1.1 nicm 582: struct window_pane *
1.161 nicm 583: window_add_pane(struct window *w, struct window_pane *after, u_int hlimit)
1.1 nicm 584: {
585: struct window_pane *wp;
586:
1.14 nicm 587: wp = window_pane_create(w, w->sx, w->sy, hlimit);
1.1 nicm 588: if (TAILQ_EMPTY(&w->panes))
589: TAILQ_INSERT_HEAD(&w->panes, wp, entry);
1.161 nicm 590: else {
591: if (after == NULL)
592: TAILQ_INSERT_AFTER(&w->panes, w->active, wp, entry);
593: else
594: TAILQ_INSERT_AFTER(&w->panes, after, wp, entry);
595: }
1.1 nicm 596: return (wp);
597: }
598:
599: void
1.105 nicm 600: window_lost_pane(struct window *w, struct window_pane *wp)
1.1 nicm 601: {
1.152 nicm 602: if (wp == marked_pane.wp)
1.132 nicm 603: server_clear_marked();
604:
1.57 nicm 605: if (wp == w->active) {
1.58 nicm 606: w->active = w->last;
607: w->last = NULL;
608: if (w->active == NULL) {
609: w->active = TAILQ_PREV(wp, window_panes, entry);
610: if (w->active == NULL)
611: w->active = TAILQ_NEXT(wp, entry);
612: }
1.151 nicm 613: if (w->active != NULL)
614: w->active->flags |= PANE_CHANGED;
1.58 nicm 615: } else if (wp == w->last)
616: w->last = NULL;
1.105 nicm 617: }
618:
619: void
620: window_remove_pane(struct window *w, struct window_pane *wp)
621: {
622: window_lost_pane(w, wp);
1.1 nicm 623:
624: TAILQ_REMOVE(&w->panes, wp, entry);
625: window_pane_destroy(wp);
626: }
627:
628: struct window_pane *
629: window_pane_at_index(struct window *w, u_int idx)
630: {
631: struct window_pane *wp;
632: u_int n;
633:
1.146 nicm 634: n = options_get_number(w->options, "pane-base-index");
1.1 nicm 635: TAILQ_FOREACH(wp, &w->panes, entry) {
636: if (n == idx)
637: return (wp);
638: n++;
639: }
640: return (NULL);
1.53 nicm 641: }
642:
643: struct window_pane *
644: window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n)
645: {
646: for (; n > 0; n--) {
647: if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
648: wp = TAILQ_FIRST(&w->panes);
649: }
650:
651: return (wp);
652: }
653:
654: struct window_pane *
655: window_pane_previous_by_number(struct window *w, struct window_pane *wp,
656: u_int n)
657: {
658: for (; n > 0; n--) {
659: if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL)
660: wp = TAILQ_LAST(&w->panes, window_panes);
661: }
662:
663: return (wp);
1.13 nicm 664: }
665:
1.69 nicm 666: int
667: window_pane_index(struct window_pane *wp, u_int *i)
1.13 nicm 668: {
669: struct window_pane *wq;
1.69 nicm 670: struct window *w = wp->window;
1.13 nicm 671:
1.146 nicm 672: *i = options_get_number(w->options, "pane-base-index");
1.13 nicm 673: TAILQ_FOREACH(wq, &w->panes, entry) {
1.69 nicm 674: if (wp == wq) {
675: return (0);
676: }
677: (*i)++;
1.13 nicm 678: }
1.69 nicm 679:
680: return (-1);
1.1 nicm 681: }
682:
683: u_int
684: window_count_panes(struct window *w)
685: {
686: struct window_pane *wp;
687: u_int n;
688:
689: n = 0;
690: TAILQ_FOREACH(wp, &w->panes, entry)
691: n++;
692: return (n);
693: }
694:
695: void
696: window_destroy_panes(struct window *w)
697: {
698: struct window_pane *wp;
699:
700: while (!TAILQ_EMPTY(&w->panes)) {
701: wp = TAILQ_FIRST(&w->panes);
702: TAILQ_REMOVE(&w->panes, wp, entry);
703: window_pane_destroy(wp);
704: }
1.61 nicm 705: }
706:
1.128 nicm 707: /* Retuns the printable flags on a window, empty string if no flags set. */
1.61 nicm 708: char *
709: window_printable_flags(struct session *s, struct winlink *wl)
710: {
1.119 nicm 711: char flags[32];
1.61 nicm 712: int pos;
713:
714: pos = 0;
715: if (wl->flags & WINLINK_ACTIVITY)
716: flags[pos++] = '#';
717: if (wl->flags & WINLINK_BELL)
718: flags[pos++] = '!';
719: if (wl->flags & WINLINK_SILENCE)
720: flags[pos++] = '~';
721: if (wl == s->curw)
722: flags[pos++] = '*';
723: if (wl == TAILQ_FIRST(&s->lastw))
724: flags[pos++] = '-';
1.152 nicm 725: if (server_check_marked() && wl == marked_pane.wl)
1.132 nicm 726: flags[pos++] = 'M';
1.93 nicm 727: if (wl->window->flags & WINDOW_ZOOMED)
728: flags[pos++] = 'Z';
1.61 nicm 729: flags[pos] = '\0';
730: return (xstrdup(flags));
1.1 nicm 731: }
732:
1.123 nicm 733: struct window_pane *
734: window_pane_find_by_id_str(const char *s)
735: {
736: const char *errstr;
737: u_int id;
738:
739: if (*s != '%')
740: return (NULL);
741:
742: id = strtonum(s + 1, 0, UINT_MAX, &errstr);
743: if (errstr != NULL)
744: return (NULL);
745: return (window_pane_find_by_id(id));
746: }
747:
1.64 nicm 748: struct window_pane *
749: window_pane_find_by_id(u_int id)
750: {
751: struct window_pane wp;
752:
753: wp.id = id;
754: return (RB_FIND(window_pane_tree, &all_window_panes, &wp));
755: }
756:
1.169 nicm 757: static struct window_pane *
1.1 nicm 758: window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
759: {
760: struct window_pane *wp;
1.140 nicm 761: char host[HOST_NAME_MAX + 1];
1.1 nicm 762:
763: wp = xcalloc(1, sizeof *wp);
764: wp->window = w;
765:
1.71 nicm 766: wp->id = next_window_pane_id++;
1.64 nicm 767: RB_INSERT(window_pane_tree, &all_window_panes, wp);
768:
1.110 nicm 769: wp->argc = 0;
770: wp->argv = NULL;
1.23 nicm 771: wp->shell = NULL;
1.147 nicm 772: wp->cwd = NULL;
1.1 nicm 773:
774: wp->fd = -1;
1.37 nicm 775: wp->event = NULL;
1.1 nicm 776:
777: wp->mode = NULL;
1.176 nicm 778: wp->modeprefix = 1;
1.14 nicm 779:
780: wp->layout_cell = NULL;
1.1 nicm 781:
782: wp->xoff = 0;
1.42 nicm 783: wp->yoff = 0;
1.1 nicm 784:
785: wp->sx = sx;
786: wp->sy = sy;
787:
1.32 nicm 788: wp->pipe_fd = -1;
789: wp->pipe_off = 0;
1.36 nicm 790: wp->pipe_event = NULL;
1.32 nicm 791:
1.9 nicm 792: wp->saved_grid = NULL;
1.117 nicm 793:
794: memcpy(&wp->colgc, &grid_default_cell, sizeof wp->colgc);
1.9 nicm 795:
1.1 nicm 796: screen_init(&wp->base, sx, sy, hlimit);
797: wp->screen = &wp->base;
1.159 nicm 798:
799: screen_init(&wp->status_screen, 1, 1, 0);
1.140 nicm 800:
801: if (gethostname(host, sizeof host) == 0)
802: screen_set_title(&wp->base, host);
1.1 nicm 803:
804: input_init(wp);
805:
806: return (wp);
807: }
808:
1.169 nicm 809: static void
1.1 nicm 810: window_pane_destroy(struct window_pane *wp)
811: {
1.55 nicm 812: window_pane_reset_mode(wp);
813:
1.37 nicm 814: if (wp->fd != -1) {
1.70 nicm 815: bufferevent_free(wp->event);
1.1 nicm 816: close(wp->fd);
1.37 nicm 817: }
1.1 nicm 818:
819: input_free(wp);
820:
821: screen_free(&wp->base);
1.9 nicm 822: if (wp->saved_grid != NULL)
823: grid_destroy(wp->saved_grid);
1.1 nicm 824:
1.32 nicm 825: if (wp->pipe_fd != -1) {
1.70 nicm 826: bufferevent_free(wp->pipe_event);
1.32 nicm 827: close(wp->pipe_fd);
828: }
1.167 nicm 829:
830: if (event_initialized(&wp->resize_timer))
831: event_del(&wp->resize_timer);
1.32 nicm 832:
1.64 nicm 833: RB_REMOVE(window_pane_tree, &all_window_panes, wp);
834:
1.147 nicm 835: free((void *)wp->cwd);
1.82 nicm 836: free(wp->shell);
1.110 nicm 837: cmd_free_argv(wp->argc, wp->argv);
1.177 nicm 838: free(wp->palette);
1.82 nicm 839: free(wp);
1.1 nicm 840: }
841:
1.166 nicm 842: static void
843: window_pane_set_watermark(struct window_pane *wp, size_t size)
844: {
845: wp->wmark_hits = 0;
846: wp->wmark_size = size;
847: bufferevent_setwatermark(wp->event, EV_READ, 0, size);
848: }
849:
1.1 nicm 850: int
1.110 nicm 851: window_pane_spawn(struct window_pane *wp, int argc, char **argv,
1.147 nicm 852: const char *path, const char *shell, const char *cwd, struct environ *env,
1.110 nicm 853: struct termios *tio, char **cause)
1.1 nicm 854: {
1.47 nicm 855: struct winsize ws;
1.150 nicm 856: char *argv0, *cmd, **argvp;
1.147 nicm 857: const char *ptr, *first, *home;
1.47 nicm 858: struct termios tio2;
1.110 nicm 859: int i;
1.1 nicm 860:
1.37 nicm 861: if (wp->fd != -1) {
1.70 nicm 862: bufferevent_free(wp->event);
1.1 nicm 863: close(wp->fd);
1.37 nicm 864: }
1.110 nicm 865: if (argc > 0) {
866: cmd_free_argv(wp->argc, wp->argv);
867: wp->argc = argc;
868: wp->argv = cmd_copy_argv(argc, argv);
1.1 nicm 869: }
1.23 nicm 870: if (shell != NULL) {
1.82 nicm 871: free(wp->shell);
1.23 nicm 872: wp->shell = xstrdup(shell);
873: }
1.147 nicm 874: if (cwd != NULL) {
875: free((void *)wp->cwd);
876: wp->cwd = xstrdup(cwd);
1.1 nicm 877: }
1.91 nicm 878:
1.110 nicm 879: cmd = cmd_stringify_argv(wp->argc, wp->argv);
880: log_debug("spawn: %s -- %s", wp->shell, cmd);
881: for (i = 0; i < wp->argc; i++)
882: log_debug("spawn: argv[%d] = %s", i, wp->argv[i]);
1.165 nicm 883: environ_log(env, "spawn: ");
1.1 nicm 884:
885: memset(&ws, 0, sizeof ws);
886: ws.ws_col = screen_size_x(&wp->base);
887: ws.ws_row = screen_size_y(&wp->base);
888:
1.42 nicm 889: switch (wp->pid = forkpty(&wp->fd, wp->tty, NULL, &ws)) {
1.1 nicm 890: case -1:
891: wp->fd = -1;
892: xasprintf(cause, "%s: %s", cmd, strerror(errno));
1.110 nicm 893: free(cmd);
1.1 nicm 894: return (-1);
895: case 0:
1.147 nicm 896: if (chdir(wp->cwd) != 0) {
897: if ((home = find_home()) == NULL || chdir(home) != 0)
898: chdir("/");
899: }
1.25 nicm 900:
901: if (tcgetattr(STDIN_FILENO, &tio2) != 0)
902: fatal("tcgetattr failed");
903: if (tio != NULL)
904: memcpy(tio2.c_cc, tio->c_cc, sizeof tio2.c_cc);
905: tio2.c_cc[VERASE] = '\177';
906: if (tcsetattr(STDIN_FILENO, TCSANOW, &tio2) != 0)
907: fatal("tcgetattr failed");
1.18 nicm 908:
1.56 nicm 909: closefrom(STDERR_FILENO + 1);
910:
1.107 nicm 911: if (path != NULL)
1.150 nicm 912: environ_set(env, "PATH", "%s", path);
913: environ_set(env, "TMUX_PANE", "%%%u", wp->id);
1.47 nicm 914: environ_push(env);
1.18 nicm 915:
1.54 nicm 916: clear_signals(1);
1.1 nicm 917: log_close();
918:
1.80 nicm 919: setenv("SHELL", wp->shell, 1);
920: ptr = strrchr(wp->shell, '/');
921:
1.110 nicm 922: /*
923: * If given one argument, assume it should be passed to sh -c;
924: * with more than one argument, use execvp(). If there is no
925: * arguments, create a login shell.
926: */
927: if (wp->argc > 0) {
928: if (wp->argc != 1) {
929: /* Copy to ensure argv ends in NULL. */
930: argvp = cmd_copy_argv(wp->argc, wp->argv);
931: execvp(argvp[0], argvp);
932: fatal("execvp failed");
933: }
934: first = wp->argv[0];
935:
1.80 nicm 936: if (ptr != NULL && *(ptr + 1) != '\0')
937: xasprintf(&argv0, "%s", ptr + 1);
938: else
939: xasprintf(&argv0, "%s", wp->shell);
1.110 nicm 940: execl(wp->shell, argv0, "-c", first, (char *)NULL);
1.8 nicm 941: fatal("execl failed");
942: }
1.23 nicm 943: if (ptr != NULL && *(ptr + 1) != '\0')
1.8 nicm 944: xasprintf(&argv0, "-%s", ptr + 1);
945: else
1.23 nicm 946: xasprintf(&argv0, "-%s", wp->shell);
1.110 nicm 947: execl(wp->shell, argv0, (char *)NULL);
1.1 nicm 948: fatal("execl failed");
949: }
950:
1.62 nicm 951: setblocking(wp->fd, 0);
952:
1.110 nicm 953: wp->event = bufferevent_new(wp->fd, window_pane_read_callback, NULL,
954: window_pane_error_callback, wp);
1.131 nicm 955:
1.166 nicm 956: window_pane_set_watermark(wp, READ_FAST_SIZE);
1.37 nicm 957: bufferevent_enable(wp->event, EV_READ|EV_WRITE);
1.1 nicm 958:
1.110 nicm 959: free(cmd);
1.1 nicm 960: return (0);
961: }
962:
1.166 nicm 963: static void
1.149 nicm 964: window_pane_read_callback(__unused struct bufferevent *bufev, void *data)
1.37 nicm 965: {
1.131 nicm 966: struct window_pane *wp = data;
967: struct evbuffer *evb = wp->event->input;
1.166 nicm 968: size_t size = EVBUFFER_LENGTH(evb);
1.131 nicm 969: char *new_data;
1.158 nicm 970: size_t new_size;
1.131 nicm 971:
1.166 nicm 972: if (wp->wmark_size == READ_FAST_SIZE) {
973: if (size > READ_FULL_SIZE)
974: wp->wmark_hits++;
975: if (wp->wmark_hits == READ_CHANGE_HITS)
976: window_pane_set_watermark(wp, READ_SLOW_SIZE);
977: } else if (wp->wmark_size == READ_SLOW_SIZE) {
978: if (size < READ_EMPTY_SIZE)
979: wp->wmark_hits++;
980: if (wp->wmark_hits == READ_CHANGE_HITS)
981: window_pane_set_watermark(wp, READ_FAST_SIZE);
982: }
983: log_debug("%%%u has %zu bytes (of %u, %u hits)", wp->id, size,
984: wp->wmark_size, wp->wmark_hits);
1.131 nicm 985:
1.166 nicm 986: new_size = size - wp->pipe_off;
1.46 nicm 987: if (wp->pipe_fd != -1 && new_size > 0) {
1.155 nicm 988: new_data = EVBUFFER_DATA(evb) + wp->pipe_off;
1.46 nicm 989: bufferevent_write(wp->pipe_event, new_data, new_size);
990: }
991:
992: input_parse(wp);
1.37 nicm 993:
1.173 nicm 994: wp->pipe_off = EVBUFFER_LENGTH(evb);
1.37 nicm 995: }
996:
1.166 nicm 997: static void
1.149 nicm 998: window_pane_error_callback(__unused struct bufferevent *bufev,
999: __unused short what, void *data)
1.37 nicm 1000: {
1001: struct window_pane *wp = data;
1002:
1.153 nicm 1003: server_destroy_pane(wp, 1);
1.37 nicm 1004: }
1005:
1006: void
1.1 nicm 1007: window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
1008: {
1009: if (sx == wp->sx && sy == wp->sy)
1.15 nicm 1010: return;
1.1 nicm 1011: wp->sx = sx;
1012: wp->sy = sy;
1013:
1.89 nicm 1014: screen_resize(&wp->base, sx, sy, wp->saved_grid == NULL);
1.1 nicm 1015: if (wp->mode != NULL)
1016: wp->mode->resize(wp, sx, sy);
1.95 nicm 1017:
1018: wp->flags |= PANE_RESIZE;
1.44 nicm 1019: }
1020:
1021: /*
1022: * Enter alternative screen mode. A copy of the visible screen is saved and the
1023: * history is not updated
1024: */
1025: void
1.87 nicm 1026: window_pane_alternate_on(struct window_pane *wp, struct grid_cell *gc,
1027: int cursor)
1.44 nicm 1028: {
1029: struct screen *s = &wp->base;
1030: u_int sx, sy;
1031:
1032: if (wp->saved_grid != NULL)
1033: return;
1.146 nicm 1034: if (!options_get_number(wp->window->options, "alternate-screen"))
1.44 nicm 1035: return;
1036: sx = screen_size_x(s);
1037: sy = screen_size_y(s);
1038:
1039: wp->saved_grid = grid_create(sx, sy, 0);
1040: grid_duplicate_lines(wp->saved_grid, 0, s->grid, screen_hsize(s), sy);
1.87 nicm 1041: if (cursor) {
1042: wp->saved_cx = s->cx;
1043: wp->saved_cy = s->cy;
1044: }
1.44 nicm 1045: memcpy(&wp->saved_cell, gc, sizeof wp->saved_cell);
1046:
1.170 nicm 1047: grid_view_clear(s->grid, 0, 0, sx, sy, 8);
1.44 nicm 1048:
1049: wp->base.grid->flags &= ~GRID_HISTORY;
1050:
1051: wp->flags |= PANE_REDRAW;
1052: }
1053:
1054: /* Exit alternate screen mode and restore the copied grid. */
1055: void
1.87 nicm 1056: window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc,
1057: int cursor)
1.44 nicm 1058: {
1059: struct screen *s = &wp->base;
1060: u_int sx, sy;
1061:
1062: if (wp->saved_grid == NULL)
1063: return;
1.146 nicm 1064: if (!options_get_number(wp->window->options, "alternate-screen"))
1.44 nicm 1065: return;
1066: sx = screen_size_x(s);
1067: sy = screen_size_y(s);
1068:
1069: /*
1070: * If the current size is bigger, temporarily resize to the old size
1071: * before copying back.
1072: */
1073: if (sy > wp->saved_grid->sy)
1.89 nicm 1074: screen_resize(s, sx, wp->saved_grid->sy, 1);
1.44 nicm 1075:
1076: /* Restore the grid, cursor position and cell. */
1077: grid_duplicate_lines(s->grid, screen_hsize(s), wp->saved_grid, 0, sy);
1.87 nicm 1078: if (cursor)
1079: s->cx = wp->saved_cx;
1.44 nicm 1080: if (s->cx > screen_size_x(s) - 1)
1081: s->cx = screen_size_x(s) - 1;
1.87 nicm 1082: if (cursor)
1083: s->cy = wp->saved_cy;
1.44 nicm 1084: if (s->cy > screen_size_y(s) - 1)
1085: s->cy = screen_size_y(s) - 1;
1086: memcpy(gc, &wp->saved_cell, sizeof *gc);
1087:
1088: /*
1089: * Turn history back on (so resize can use it) and then resize back to
1090: * the current size.
1091: */
1092: wp->base.grid->flags |= GRID_HISTORY;
1.89 nicm 1093: if (sy > wp->saved_grid->sy || sx != wp->saved_grid->sx)
1094: screen_resize(s, sx, sy, 1);
1.44 nicm 1095:
1096: grid_destroy(wp->saved_grid);
1097: wp->saved_grid = NULL;
1098:
1.177 nicm 1099: wp->flags |= PANE_REDRAW;
1100: }
1101:
1102: void
1103: window_pane_set_palette(struct window_pane *wp, u_int n, int colour)
1104: {
1105: if (n > 0xff)
1106: return;
1107:
1108: if (wp->palette == NULL)
1109: wp->palette = xcalloc(0x100, sizeof *wp->palette);
1110:
1111: wp->palette[n] = colour;
1112: wp->flags |= PANE_REDRAW;
1113: }
1114:
1115: void
1116: window_pane_unset_palette(struct window_pane *wp, u_int n)
1117: {
1118: if (n > 0xff || wp->palette == NULL)
1119: return;
1120:
1121: wp->palette[n] = 0;
1122: wp->flags |= PANE_REDRAW;
1123: }
1124:
1125: void
1126: window_pane_reset_palette(struct window_pane *wp)
1127: {
1128: if (wp->palette == NULL)
1129: return;
1130:
1131: free(wp->palette);
1132: wp->palette = NULL;
1.44 nicm 1133: wp->flags |= PANE_REDRAW;
1.1 nicm 1134: }
1135:
1.162 nicm 1136: static void
1137: window_pane_mode_timer(__unused int fd, __unused short events, void *arg)
1138: {
1139: struct window_pane *wp = arg;
1140: struct timeval tv = { .tv_sec = 10 };
1141: int n = 0;
1142:
1143: evtimer_del(&wp->modetimer);
1144: evtimer_add(&wp->modetimer, &tv);
1145:
1146: log_debug("%%%u in mode: last=%ld", wp->id, (long)wp->modelast);
1147:
1148: if (wp->modelast < time(NULL) - WINDOW_MODE_TIMEOUT) {
1149: if (ioctl(wp->fd, FIONREAD, &n) == -1 || n > 0)
1150: window_pane_reset_mode(wp);
1151: }
1152: }
1153:
1.1 nicm 1154: int
1155: window_pane_set_mode(struct window_pane *wp, const struct window_mode *mode)
1156: {
1157: struct screen *s;
1.162 nicm 1158: struct timeval tv = { .tv_sec = 10 };
1.1 nicm 1159:
1.15 nicm 1160: if (wp->mode != NULL)
1.1 nicm 1161: return (1);
1162: wp->mode = mode;
1163:
1.162 nicm 1164: wp->modelast = time(NULL);
1165: evtimer_set(&wp->modetimer, window_pane_mode_timer, wp);
1166: evtimer_add(&wp->modetimer, &tv);
1167:
1.1 nicm 1168: if ((s = wp->mode->init(wp)) != NULL)
1169: wp->screen = s;
1.142 nicm 1170: wp->flags |= (PANE_REDRAW|PANE_CHANGED);
1.157 nicm 1171:
1172: server_status_window(wp->window);
1.1 nicm 1173: return (0);
1174: }
1175:
1176: void
1177: window_pane_reset_mode(struct window_pane *wp)
1178: {
1179: if (wp->mode == NULL)
1180: return;
1181:
1.162 nicm 1182: evtimer_del(&wp->modetimer);
1183:
1.1 nicm 1184: wp->mode->free(wp);
1185: wp->mode = NULL;
1.168 nicm 1186: wp->modeprefix = 1;
1.1 nicm 1187:
1188: wp->screen = &wp->base;
1.142 nicm 1189: wp->flags |= (PANE_REDRAW|PANE_CHANGED);
1.157 nicm 1190:
1191: server_status_window(wp->window);
1.1 nicm 1192: }
1193:
1194: void
1.118 nicm 1195: window_pane_key(struct window_pane *wp, struct client *c, struct session *s,
1.148 nicm 1196: key_code key, struct mouse_event *m)
1.1 nicm 1197: {
1.27 nicm 1198: struct window_pane *wp2;
1.3 nicm 1199:
1.118 nicm 1200: if (KEYC_IS_MOUSE(key) && m == NULL)
1201: return;
1202:
1.1 nicm 1203: if (wp->mode != NULL) {
1.162 nicm 1204: wp->modelast = time(NULL);
1.1 nicm 1205: if (wp->mode->key != NULL)
1.118 nicm 1206: wp->mode->key(wp, c, s, key, m);
1.27 nicm 1207: return;
1.30 nicm 1208: }
1.27 nicm 1209:
1.113 nicm 1210: if (wp->fd == -1 || wp->flags & PANE_INPUTOFF)
1.30 nicm 1211: return;
1.113 nicm 1212:
1.118 nicm 1213: input_key(wp, key, m);
1214:
1215: if (KEYC_IS_MOUSE(key))
1216: return;
1.146 nicm 1217: if (options_get_number(wp->window->options, "synchronize-panes")) {
1.27 nicm 1218: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
1219: if (wp2 == wp || wp2->mode != NULL)
1220: continue;
1.154 nicm 1221: if (wp2->fd == -1 || wp2->flags & PANE_INPUTOFF)
1222: continue;
1223: if (window_pane_visible(wp2))
1.118 nicm 1224: input_key(wp2, key, NULL);
1.27 nicm 1225: }
1226: }
1.10 nicm 1227: }
1228:
1229: int
1.175 nicm 1230: window_pane_outside(struct window_pane *wp)
1.10 nicm 1231: {
1232: struct window *w = wp->window;
1233:
1234: if (wp->xoff >= w->sx || wp->yoff >= w->sy)
1.175 nicm 1235: return (1);
1.10 nicm 1236: if (wp->xoff + wp->sx > w->sx || wp->yoff + wp->sy > w->sy)
1.175 nicm 1237: return (1);
1238: return (0);
1239: }
1240:
1241: int
1242: window_pane_visible(struct window_pane *wp)
1243: {
1244: if (wp->layout_cell == NULL)
1.10 nicm 1245: return (0);
1.175 nicm 1246: return (!window_pane_outside(wp));
1.1 nicm 1247: }
1248:
1249: char *
1.108 nicm 1250: window_pane_search(struct window_pane *wp, const char *searchstr,
1251: u_int *lineno)
1.1 nicm 1252: {
1.4 nicm 1253: struct screen *s = &wp->base;
1.5 nicm 1254: char *newsearchstr, *line, *msg;
1.4 nicm 1255: u_int i;
1256:
1.5 nicm 1257: msg = NULL;
1258: xasprintf(&newsearchstr, "*%s*", searchstr);
1259:
1.4 nicm 1260: for (i = 0; i < screen_size_y(s); i++) {
1261: line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
1.5 nicm 1262: if (fnmatch(newsearchstr, line, 0) == 0) {
1263: msg = line;
1264: if (lineno != NULL)
1265: *lineno = i;
1266: break;
1267: }
1.82 nicm 1268: free(line);
1.4 nicm 1269: }
1.5 nicm 1270:
1.82 nicm 1271: free(newsearchstr);
1.5 nicm 1272: return (msg);
1.45 nicm 1273: }
1274:
1.109 nicm 1275: /* Get MRU pane from a list. */
1.166 nicm 1276: static struct window_pane *
1.126 nicm 1277: window_pane_choose_best(struct window_pane **list, u_int size)
1.109 nicm 1278: {
1279: struct window_pane *next, *best;
1280: u_int i;
1281:
1.126 nicm 1282: if (size == 0)
1.109 nicm 1283: return (NULL);
1284:
1.126 nicm 1285: best = list[0];
1286: for (i = 1; i < size; i++) {
1287: next = list[i];
1.109 nicm 1288: if (next->active_point > best->active_point)
1289: best = next;
1290: }
1291: return (best);
1292: }
1293:
1294: /*
1295: * Find the pane directly above another. We build a list of those adjacent to
1296: * top edge and then choose the best.
1297: */
1.45 nicm 1298: struct window_pane *
1299: window_pane_find_up(struct window_pane *wp)
1300: {
1.126 nicm 1301: struct window_pane *next, *best, **list;
1302: u_int edge, left, right, end, size;
1.109 nicm 1303: int found;
1.45 nicm 1304:
1305: if (wp == NULL || !window_pane_visible(wp))
1306: return (NULL);
1.126 nicm 1307:
1308: list = NULL;
1309: size = 0;
1.109 nicm 1310:
1311: edge = wp->yoff;
1312: if (edge == 0)
1313: edge = wp->window->sy + 1;
1.45 nicm 1314:
1315: left = wp->xoff;
1.109 nicm 1316: right = wp->xoff + wp->sx;
1.45 nicm 1317:
1.109 nicm 1318: TAILQ_FOREACH(next, &wp->window->panes, entry) {
1319: if (next == wp || !window_pane_visible(next))
1.45 nicm 1320: continue;
1.109 nicm 1321: if (next->yoff + next->sy + 1 != edge)
1.45 nicm 1322: continue;
1.109 nicm 1323: end = next->xoff + next->sx - 1;
1324:
1325: found = 0;
1326: if (next->xoff < left && end > right)
1327: found = 1;
1328: else if (next->xoff >= left && next->xoff <= right)
1329: found = 1;
1330: else if (end >= left && end <= right)
1331: found = 1;
1.126 nicm 1332: if (!found)
1333: continue;
1334: list = xreallocarray(list, size + 1, sizeof *list);
1335: list[size++] = next;
1.109 nicm 1336: }
1337:
1.126 nicm 1338: best = window_pane_choose_best(list, size);
1339: free(list);
1.109 nicm 1340: return (best);
1.45 nicm 1341: }
1342:
1343: /* Find the pane directly below another. */
1344: struct window_pane *
1345: window_pane_find_down(struct window_pane *wp)
1346: {
1.126 nicm 1347: struct window_pane *next, *best, **list;
1348: u_int edge, left, right, end, size;
1.109 nicm 1349: int found;
1.45 nicm 1350:
1351: if (wp == NULL || !window_pane_visible(wp))
1352: return (NULL);
1.126 nicm 1353:
1354: list = NULL;
1355: size = 0;
1.109 nicm 1356:
1357: edge = wp->yoff + wp->sy + 1;
1358: if (edge >= wp->window->sy)
1359: edge = 0;
1.45 nicm 1360:
1361: left = wp->xoff;
1.109 nicm 1362: right = wp->xoff + wp->sx;
1.45 nicm 1363:
1.109 nicm 1364: TAILQ_FOREACH(next, &wp->window->panes, entry) {
1365: if (next == wp || !window_pane_visible(next))
1.45 nicm 1366: continue;
1.109 nicm 1367: if (next->yoff != edge)
1.45 nicm 1368: continue;
1.109 nicm 1369: end = next->xoff + next->sx - 1;
1370:
1371: found = 0;
1372: if (next->xoff < left && end > right)
1373: found = 1;
1374: else if (next->xoff >= left && next->xoff <= right)
1375: found = 1;
1376: else if (end >= left && end <= right)
1377: found = 1;
1.126 nicm 1378: if (!found)
1379: continue;
1380: list = xreallocarray(list, size + 1, sizeof *list);
1381: list[size++] = next;
1.45 nicm 1382: }
1.109 nicm 1383:
1.126 nicm 1384: best = window_pane_choose_best(list, size);
1385: free(list);
1.109 nicm 1386: return (best);
1.45 nicm 1387: }
1388:
1.109 nicm 1389: /* Find the pane directly to the left of another. */
1.45 nicm 1390: struct window_pane *
1391: window_pane_find_left(struct window_pane *wp)
1392: {
1.126 nicm 1393: struct window_pane *next, *best, **list;
1394: u_int edge, top, bottom, end, size;
1.109 nicm 1395: int found;
1.45 nicm 1396:
1397: if (wp == NULL || !window_pane_visible(wp))
1398: return (NULL);
1.126 nicm 1399:
1400: list = NULL;
1401: size = 0;
1.109 nicm 1402:
1403: edge = wp->xoff;
1404: if (edge == 0)
1405: edge = wp->window->sx + 1;
1.45 nicm 1406:
1407: top = wp->yoff;
1.109 nicm 1408: bottom = wp->yoff + wp->sy;
1.45 nicm 1409:
1.109 nicm 1410: TAILQ_FOREACH(next, &wp->window->panes, entry) {
1411: if (next == wp || !window_pane_visible(next))
1.45 nicm 1412: continue;
1.109 nicm 1413: if (next->xoff + next->sx + 1 != edge)
1.45 nicm 1414: continue;
1.109 nicm 1415: end = next->yoff + next->sy - 1;
1416:
1417: found = 0;
1418: if (next->yoff < top && end > bottom)
1419: found = 1;
1420: else if (next->yoff >= top && next->yoff <= bottom)
1421: found = 1;
1422: else if (end >= top && end <= bottom)
1423: found = 1;
1.126 nicm 1424: if (!found)
1425: continue;
1426: list = xreallocarray(list, size + 1, sizeof *list);
1427: list[size++] = next;
1.45 nicm 1428: }
1.109 nicm 1429:
1.126 nicm 1430: best = window_pane_choose_best(list, size);
1431: free(list);
1.109 nicm 1432: return (best);
1.45 nicm 1433: }
1434:
1.109 nicm 1435: /* Find the pane directly to the right of another. */
1.45 nicm 1436: struct window_pane *
1437: window_pane_find_right(struct window_pane *wp)
1438: {
1.126 nicm 1439: struct window_pane *next, *best, **list;
1440: u_int edge, top, bottom, end, size;
1.109 nicm 1441: int found;
1.45 nicm 1442:
1443: if (wp == NULL || !window_pane_visible(wp))
1444: return (NULL);
1.126 nicm 1445:
1446: list = NULL;
1447: size = 0;
1.109 nicm 1448:
1449: edge = wp->xoff + wp->sx + 1;
1450: if (edge >= wp->window->sx)
1451: edge = 0;
1.45 nicm 1452:
1453: top = wp->yoff;
1.109 nicm 1454: bottom = wp->yoff + wp->sy;
1.45 nicm 1455:
1.109 nicm 1456: TAILQ_FOREACH(next, &wp->window->panes, entry) {
1457: if (next == wp || !window_pane_visible(next))
1.45 nicm 1458: continue;
1.109 nicm 1459: if (next->xoff != edge)
1.45 nicm 1460: continue;
1.109 nicm 1461: end = next->yoff + next->sy - 1;
1462:
1463: found = 0;
1464: if (next->yoff < top && end > bottom)
1465: found = 1;
1466: else if (next->yoff >= top && next->yoff <= bottom)
1467: found = 1;
1468: else if (end >= top && end <= bottom)
1469: found = 1;
1.126 nicm 1470: if (!found)
1471: continue;
1472: list = xreallocarray(list, size + 1, sizeof *list);
1473: list[size++] = next;
1.109 nicm 1474: }
1475:
1.126 nicm 1476: best = window_pane_choose_best(list, size);
1477: free(list);
1.109 nicm 1478: return (best);
1.81 nicm 1479: }
1480:
1481: /* Clear alert flags for a winlink */
1482: void
1483: winlink_clear_flags(struct winlink *wl)
1484: {
1.174 nicm 1485: struct winlink *loop;
1.81 nicm 1486:
1.174 nicm 1487: wl->window->flags &= ~WINDOW_ALERTFLAGS;
1488: TAILQ_FOREACH(loop, &wl->window->winlinks, wentry) {
1489: if ((loop->flags & WINLINK_ALERTFLAGS) != 0) {
1490: loop->flags &= ~WINLINK_ALERTFLAGS;
1491: server_status_session(loop->session);
1.81 nicm 1492: }
1493: }
1.134 nicm 1494: }
1495:
1496: int
1497: winlink_shuffle_up(struct session *s, struct winlink *wl)
1498: {
1499: int idx, last;
1500:
1501: idx = wl->idx + 1;
1502:
1503: /* Find the next free index. */
1504: for (last = idx; last < INT_MAX; last++) {
1505: if (winlink_find_by_index(&s->windows, last) == NULL)
1506: break;
1507: }
1508: if (last == INT_MAX)
1509: return (-1);
1510:
1511: /* Move everything from last - 1 to idx up a bit. */
1512: for (; last > idx; last--) {
1513: wl = winlink_find_by_index(&s->windows, last - 1);
1514: server_link_window(s, wl, s, last, 0, 0, NULL);
1515: server_unlink_window(s, wl);
1516: }
1517:
1518: return (idx);
1.178 nicm 1519: }
1520:
1521: int
1522: window_pane_get_palette(const struct window_pane *wp, int c)
1523: {
1524: int new;
1525:
1526: if (wp == NULL || wp->palette == NULL)
1527: return (-1);
1528:
1529: new = -1;
1530: if (c < 8)
1531: new = wp->palette[c];
1532: else if (c >= 90 && c <= 97)
1.179 ! nicm 1533: new = wp->palette[8 + c - 90];
1.178 nicm 1534: else if (c & COLOUR_FLAG_256)
1535: new = wp->palette[c & ~COLOUR_FLAG_256];
1536: if (new == 0)
1537: return (-1);
1538: return (new);
1.1 nicm 1539: }
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