Annotation of embedaddon/tmux/window.c, revision 1.1
1.1 ! misho 1: /* $OpenBSD$ */
! 2:
! 3: /*
! 4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
! 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>
! 24: #include <fnmatch.h>
! 25: #include <signal.h>
! 26: #include <stdint.h>
! 27: #include <stdlib.h>
! 28: #include <string.h>
! 29: #include <termios.h>
! 30: #include <time.h>
! 31: #include <unistd.h>
! 32:
! 33: #include "tmux.h"
! 34:
! 35: /*
! 36: * Each window is attached to a number of panes, each of which is a pty. This
! 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: */
! 53:
! 54: /* Global window list. */
! 55: struct windows windows;
! 56:
! 57: /* Global panes tree. */
! 58: struct window_pane_tree all_window_panes;
! 59: static u_int next_window_pane_id;
! 60: static u_int next_window_id;
! 61: static u_int next_active_point;
! 62:
! 63: static void window_destroy(struct window *);
! 64:
! 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:
! 69: static void window_pane_read_callback(struct bufferevent *, void *);
! 70: static void window_pane_error_callback(struct bufferevent *, short, void *);
! 71:
! 72: static int winlink_next_index(struct winlinks *, int);
! 73:
! 74: static struct window_pane *window_pane_choose_best(struct window_pane **,
! 75: u_int);
! 76:
! 77: RB_GENERATE(windows, window, entry, window_cmp);
! 78: RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
! 79: RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
! 80:
! 81: int
! 82: window_cmp(struct window *w1, struct window *w2)
! 83: {
! 84: return (w1->id - w2->id);
! 85: }
! 86:
! 87: int
! 88: winlink_cmp(struct winlink *wl1, struct winlink *wl2)
! 89: {
! 90: return (wl1->idx - wl2->idx);
! 91: }
! 92:
! 93: int
! 94: window_pane_cmp(struct window_pane *wp1, struct window_pane *wp2)
! 95: {
! 96: return (wp1->id - wp2->id);
! 97: }
! 98:
! 99: struct winlink *
! 100: winlink_find_by_window(struct winlinks *wwl, struct window *w)
! 101: {
! 102: struct winlink *wl;
! 103:
! 104: RB_FOREACH(wl, winlinks, wwl) {
! 105: if (wl->window == w)
! 106: return (wl);
! 107: }
! 108:
! 109: return (NULL);
! 110: }
! 111:
! 112: struct winlink *
! 113: winlink_find_by_index(struct winlinks *wwl, int idx)
! 114: {
! 115: struct winlink wl;
! 116:
! 117: if (idx < 0)
! 118: fatalx("bad index");
! 119:
! 120: wl.idx = idx;
! 121: return (RB_FIND(winlinks, wwl, &wl));
! 122: }
! 123:
! 124: struct winlink *
! 125: winlink_find_by_window_id(struct winlinks *wwl, u_int id)
! 126: {
! 127: struct winlink *wl;
! 128:
! 129: RB_FOREACH(wl, winlinks, wwl) {
! 130: if (wl->window->id == id)
! 131: return (wl);
! 132: }
! 133: return (NULL);
! 134: }
! 135:
! 136: static int
! 137: winlink_next_index(struct winlinks *wwl, int idx)
! 138: {
! 139: int i;
! 140:
! 141: i = idx;
! 142: do {
! 143: if (winlink_find_by_index(wwl, i) == NULL)
! 144: return (i);
! 145: if (i == INT_MAX)
! 146: i = 0;
! 147: else
! 148: i++;
! 149: } while (i != idx);
! 150: return (-1);
! 151: }
! 152:
! 153: u_int
! 154: winlink_count(struct winlinks *wwl)
! 155: {
! 156: struct winlink *wl;
! 157: u_int n;
! 158:
! 159: n = 0;
! 160: RB_FOREACH(wl, winlinks, wwl)
! 161: n++;
! 162:
! 163: return (n);
! 164: }
! 165:
! 166: struct winlink *
! 167: winlink_add(struct winlinks *wwl, int idx)
! 168: {
! 169: struct winlink *wl;
! 170:
! 171: if (idx < 0) {
! 172: if ((idx = winlink_next_index(wwl, -idx - 1)) == -1)
! 173: return (NULL);
! 174: } else if (winlink_find_by_index(wwl, idx) != NULL)
! 175: return (NULL);
! 176:
! 177: wl = xcalloc(1, sizeof *wl);
! 178: wl->idx = idx;
! 179: RB_INSERT(winlinks, wwl, wl);
! 180:
! 181: return (wl);
! 182: }
! 183:
! 184: void
! 185: winlink_set_window(struct winlink *wl, struct window *w)
! 186: {
! 187: if (wl->window != NULL) {
! 188: TAILQ_REMOVE(&wl->window->winlinks, wl, wentry);
! 189: window_remove_ref(w);
! 190: }
! 191: TAILQ_INSERT_TAIL(&w->winlinks, wl, wentry);
! 192: wl->window = w;
! 193: w->references++;
! 194: }
! 195:
! 196: void
! 197: winlink_remove(struct winlinks *wwl, struct winlink *wl)
! 198: {
! 199: struct window *w = wl->window;
! 200:
! 201: if (w != NULL) {
! 202: TAILQ_REMOVE(&w->winlinks, wl, wentry);
! 203: window_remove_ref(w);
! 204: }
! 205:
! 206: RB_REMOVE(winlinks, wwl, wl);
! 207: free(wl->status_text);
! 208: free(wl);
! 209: }
! 210:
! 211: struct winlink *
! 212: winlink_next(struct winlink *wl)
! 213: {
! 214: return (RB_NEXT(winlinks, wwl, wl));
! 215: }
! 216:
! 217: struct winlink *
! 218: winlink_previous(struct winlink *wl)
! 219: {
! 220: return (RB_PREV(winlinks, wwl, wl));
! 221: }
! 222:
! 223: struct winlink *
! 224: winlink_next_by_number(struct winlink *wl, struct session *s, int n)
! 225: {
! 226: for (; n > 0; n--) {
! 227: if ((wl = RB_NEXT(winlinks, wwl, wl)) == NULL)
! 228: wl = RB_MIN(winlinks, &s->windows);
! 229: }
! 230:
! 231: return (wl);
! 232: }
! 233:
! 234: struct winlink *
! 235: winlink_previous_by_number(struct winlink *wl, struct session *s, int n)
! 236: {
! 237: for (; n > 0; n--) {
! 238: if ((wl = RB_PREV(winlinks, wwl, wl)) == NULL)
! 239: wl = RB_MAX(winlinks, &s->windows);
! 240: }
! 241:
! 242: return (wl);
! 243: }
! 244:
! 245: void
! 246: winlink_stack_push(struct winlink_stack *stack, struct winlink *wl)
! 247: {
! 248: if (wl == NULL)
! 249: return;
! 250:
! 251: winlink_stack_remove(stack, wl);
! 252: TAILQ_INSERT_HEAD(stack, wl, sentry);
! 253: }
! 254:
! 255: void
! 256: winlink_stack_remove(struct winlink_stack *stack, struct winlink *wl)
! 257: {
! 258: struct winlink *wl2;
! 259:
! 260: if (wl == NULL)
! 261: return;
! 262:
! 263: TAILQ_FOREACH(wl2, stack, sentry) {
! 264: if (wl2 == wl) {
! 265: TAILQ_REMOVE(stack, wl, sentry);
! 266: return;
! 267: }
! 268: }
! 269: }
! 270:
! 271: struct window *
! 272: window_find_by_id_str(const char *s)
! 273: {
! 274: const char *errstr;
! 275: u_int id;
! 276:
! 277: if (*s != '@')
! 278: return (NULL);
! 279:
! 280: id = strtonum(s + 1, 0, UINT_MAX, &errstr);
! 281: if (errstr != NULL)
! 282: return (NULL);
! 283: return (window_find_by_id(id));
! 284: }
! 285:
! 286: struct window *
! 287: window_find_by_id(u_int id)
! 288: {
! 289: struct window w;
! 290:
! 291: w.id = id;
! 292: return (RB_FIND(windows, &windows, &w));
! 293: }
! 294:
! 295: void
! 296: window_update_activity(struct window *w)
! 297: {
! 298: gettimeofday(&w->activity_time, NULL);
! 299: alerts_queue(w, WINDOW_ACTIVITY);
! 300: }
! 301:
! 302: struct window *
! 303: window_create(u_int sx, u_int sy)
! 304: {
! 305: struct window *w;
! 306:
! 307: w = xcalloc(1, sizeof *w);
! 308: w->name = NULL;
! 309: w->flags = WINDOW_STYLECHANGED;
! 310:
! 311: TAILQ_INIT(&w->panes);
! 312: w->active = NULL;
! 313:
! 314: w->lastlayout = -1;
! 315: w->layout_root = NULL;
! 316:
! 317: w->sx = sx;
! 318: w->sy = sy;
! 319:
! 320: w->options = options_create(global_w_options);
! 321:
! 322: w->references = 0;
! 323: TAILQ_INIT(&w->winlinks);
! 324:
! 325: w->id = next_window_id++;
! 326: RB_INSERT(windows, &windows, w);
! 327:
! 328: window_update_activity(w);
! 329:
! 330: return (w);
! 331: }
! 332:
! 333: struct window *
! 334: window_create_spawn(const char *name, int argc, char **argv, const char *path,
! 335: const char *shell, const char *cwd, struct environ *env,
! 336: struct termios *tio, u_int sx, u_int sy, u_int hlimit, char **cause)
! 337: {
! 338: struct window *w;
! 339: struct window_pane *wp;
! 340:
! 341: w = window_create(sx, sy);
! 342: wp = window_add_pane(w, NULL, 0, hlimit);
! 343: layout_init(w, wp);
! 344:
! 345: if (window_pane_spawn(wp, argc, argv, path, shell, cwd,
! 346: env, tio, cause) != 0) {
! 347: window_destroy(w);
! 348: return (NULL);
! 349: }
! 350:
! 351: w->active = TAILQ_FIRST(&w->panes);
! 352: if (name != NULL) {
! 353: w->name = xstrdup(name);
! 354: options_set_number(w->options, "automatic-rename", 0);
! 355: } else
! 356: w->name = default_window_name(w);
! 357:
! 358: return (w);
! 359: }
! 360:
! 361: static void
! 362: window_destroy(struct window *w)
! 363: {
! 364: if (!TAILQ_EMPTY(&w->winlinks))
! 365: fatalx("window destroyed with winlinks");
! 366:
! 367: RB_REMOVE(windows, &windows, w);
! 368:
! 369: if (w->layout_root != NULL)
! 370: layout_free_cell(w->layout_root);
! 371: if (w->saved_layout_root != NULL)
! 372: layout_free_cell(w->saved_layout_root);
! 373: free(w->old_layout);
! 374:
! 375: if (event_initialized(&w->name_event))
! 376: evtimer_del(&w->name_event);
! 377:
! 378: if (event_initialized(&w->alerts_timer))
! 379: evtimer_del(&w->alerts_timer);
! 380:
! 381: options_free(w->options);
! 382:
! 383: window_destroy_panes(w);
! 384:
! 385: free(w->name);
! 386: free(w);
! 387: }
! 388:
! 389: void
! 390: window_remove_ref(struct window *w)
! 391: {
! 392: if (w->references == 0)
! 393: fatal("bad reference count");
! 394: w->references--;
! 395: if (w->references == 0)
! 396: window_destroy(w);
! 397: }
! 398:
! 399: void
! 400: window_set_name(struct window *w, const char *new_name)
! 401: {
! 402: free(w->name);
! 403: w->name = xstrdup(new_name);
! 404: notify_window("window-renamed", w);
! 405: }
! 406:
! 407: void
! 408: window_resize(struct window *w, u_int sx, u_int sy)
! 409: {
! 410: w->sx = sx;
! 411: w->sy = sy;
! 412: }
! 413:
! 414: int
! 415: window_has_pane(struct window *w, struct window_pane *wp)
! 416: {
! 417: struct window_pane *wp1;
! 418:
! 419: TAILQ_FOREACH(wp1, &w->panes, entry) {
! 420: if (wp1 == wp)
! 421: return (1);
! 422: }
! 423: return (0);
! 424: }
! 425:
! 426: int
! 427: window_set_active_pane(struct window *w, struct window_pane *wp)
! 428: {
! 429: log_debug("%s: pane %%%u (was %%%u)", __func__, wp->id, w->active->id);
! 430: if (wp == w->active)
! 431: return (0);
! 432: w->last = w->active;
! 433: w->active = wp;
! 434: while (!window_pane_visible(w->active)) {
! 435: w->active = TAILQ_PREV(w->active, window_panes, entry);
! 436: if (w->active == NULL)
! 437: w->active = TAILQ_LAST(&w->panes, window_panes);
! 438: if (w->active == wp)
! 439: return (1);
! 440: }
! 441: w->active->active_point = next_active_point++;
! 442: w->active->flags |= PANE_CHANGED;
! 443: return (1);
! 444: }
! 445:
! 446: void
! 447: window_redraw_active_switch(struct window *w, struct window_pane *wp)
! 448: {
! 449: const struct grid_cell *gc;
! 450:
! 451: if (wp == w->active)
! 452: return;
! 453:
! 454: /*
! 455: * If window-style and window-active-style are the same, we don't need
! 456: * to redraw panes when switching active panes.
! 457: */
! 458: gc = options_get_style(w->options, "window-active-style");
! 459: if (style_equal(gc, options_get_style(w->options, "window-style")))
! 460: return;
! 461:
! 462: /*
! 463: * If the now active or inactive pane do not have a custom style or if
! 464: * the palette is different, they need to be redrawn.
! 465: */
! 466: if (window_pane_get_palette(w->active, w->active->colgc.fg) != -1 ||
! 467: window_pane_get_palette(w->active, w->active->colgc.bg) != -1 ||
! 468: style_equal(&grid_default_cell, &w->active->colgc))
! 469: w->active->flags |= PANE_REDRAW;
! 470: if (window_pane_get_palette(wp, wp->colgc.fg) != -1 ||
! 471: window_pane_get_palette(wp, wp->colgc.bg) != -1 ||
! 472: style_equal(&grid_default_cell, &wp->colgc))
! 473: wp->flags |= PANE_REDRAW;
! 474: }
! 475:
! 476: struct window_pane *
! 477: window_get_active_at(struct window *w, u_int x, u_int y)
! 478: {
! 479: struct window_pane *wp;
! 480:
! 481: TAILQ_FOREACH(wp, &w->panes, entry) {
! 482: if (!window_pane_visible(wp))
! 483: continue;
! 484: if (x < wp->xoff || x > wp->xoff + wp->sx)
! 485: continue;
! 486: if (y < wp->yoff || y > wp->yoff + wp->sy)
! 487: continue;
! 488: return (wp);
! 489: }
! 490: return (NULL);
! 491: }
! 492:
! 493: struct window_pane *
! 494: window_find_string(struct window *w, const char *s)
! 495: {
! 496: u_int x, y;
! 497:
! 498: x = w->sx / 2;
! 499: y = w->sy / 2;
! 500:
! 501: if (strcasecmp(s, "top") == 0)
! 502: y = 0;
! 503: else if (strcasecmp(s, "bottom") == 0)
! 504: y = w->sy - 1;
! 505: else if (strcasecmp(s, "left") == 0)
! 506: x = 0;
! 507: else if (strcasecmp(s, "right") == 0)
! 508: x = w->sx - 1;
! 509: else if (strcasecmp(s, "top-left") == 0) {
! 510: x = 0;
! 511: y = 0;
! 512: } else if (strcasecmp(s, "top-right") == 0) {
! 513: x = w->sx - 1;
! 514: y = 0;
! 515: } else if (strcasecmp(s, "bottom-left") == 0) {
! 516: x = 0;
! 517: y = w->sy - 1;
! 518: } else if (strcasecmp(s, "bottom-right") == 0) {
! 519: x = w->sx - 1;
! 520: y = w->sy - 1;
! 521: } else
! 522: return (NULL);
! 523:
! 524: return (window_get_active_at(w, x, y));
! 525: }
! 526:
! 527: int
! 528: window_zoom(struct window_pane *wp)
! 529: {
! 530: struct window *w = wp->window;
! 531: struct window_pane *wp1;
! 532:
! 533: if (w->flags & WINDOW_ZOOMED)
! 534: return (-1);
! 535:
! 536: if (!window_pane_visible(wp))
! 537: return (-1);
! 538:
! 539: if (window_count_panes(w) == 1)
! 540: return (-1);
! 541:
! 542: if (w->active != wp)
! 543: window_set_active_pane(w, wp);
! 544:
! 545: TAILQ_FOREACH(wp1, &w->panes, entry) {
! 546: wp1->saved_layout_cell = wp1->layout_cell;
! 547: wp1->layout_cell = NULL;
! 548: }
! 549:
! 550: w->saved_layout_root = w->layout_root;
! 551: layout_init(w, wp);
! 552: w->flags |= WINDOW_ZOOMED;
! 553: notify_window("window-layout-changed", w);
! 554:
! 555: return (0);
! 556: }
! 557:
! 558: int
! 559: window_unzoom(struct window *w)
! 560: {
! 561: struct window_pane *wp;
! 562:
! 563: if (!(w->flags & WINDOW_ZOOMED))
! 564: return (-1);
! 565:
! 566: w->flags &= ~WINDOW_ZOOMED;
! 567: layout_free(w);
! 568: w->layout_root = w->saved_layout_root;
! 569: w->saved_layout_root = NULL;
! 570:
! 571: TAILQ_FOREACH(wp, &w->panes, entry) {
! 572: wp->layout_cell = wp->saved_layout_cell;
! 573: wp->saved_layout_cell = NULL;
! 574: }
! 575: layout_fix_panes(w, w->sx, w->sy);
! 576: notify_window("window-layout-changed", w);
! 577:
! 578: return (0);
! 579: }
! 580:
! 581: struct window_pane *
! 582: window_add_pane(struct window *w, struct window_pane *other, int before,
! 583: u_int hlimit)
! 584: {
! 585: struct window_pane *wp;
! 586:
! 587: if (other == NULL)
! 588: other = w->active;
! 589:
! 590: wp = window_pane_create(w, w->sx, w->sy, hlimit);
! 591: if (TAILQ_EMPTY(&w->panes)) {
! 592: log_debug("%s: @%u at start", __func__, w->id);
! 593: TAILQ_INSERT_HEAD(&w->panes, wp, entry);
! 594: } else if (before) {
! 595: log_debug("%s: @%u before %%%u", __func__, w->id, wp->id);
! 596: TAILQ_INSERT_BEFORE(other, wp, entry);
! 597: } else {
! 598: log_debug("%s: @%u after %%%u", __func__, w->id, wp->id);
! 599: TAILQ_INSERT_AFTER(&w->panes, other, wp, entry);
! 600: }
! 601: return (wp);
! 602: }
! 603:
! 604: void
! 605: window_lost_pane(struct window *w, struct window_pane *wp)
! 606: {
! 607: if (wp == marked_pane.wp)
! 608: server_clear_marked();
! 609:
! 610: if (wp == w->active) {
! 611: w->active = w->last;
! 612: w->last = NULL;
! 613: if (w->active == NULL) {
! 614: w->active = TAILQ_PREV(wp, window_panes, entry);
! 615: if (w->active == NULL)
! 616: w->active = TAILQ_NEXT(wp, entry);
! 617: }
! 618: if (w->active != NULL)
! 619: w->active->flags |= PANE_CHANGED;
! 620: } else if (wp == w->last)
! 621: w->last = NULL;
! 622: }
! 623:
! 624: void
! 625: window_remove_pane(struct window *w, struct window_pane *wp)
! 626: {
! 627: window_lost_pane(w, wp);
! 628:
! 629: TAILQ_REMOVE(&w->panes, wp, entry);
! 630: window_pane_destroy(wp);
! 631: }
! 632:
! 633: struct window_pane *
! 634: window_pane_at_index(struct window *w, u_int idx)
! 635: {
! 636: struct window_pane *wp;
! 637: u_int n;
! 638:
! 639: n = options_get_number(w->options, "pane-base-index");
! 640: TAILQ_FOREACH(wp, &w->panes, entry) {
! 641: if (n == idx)
! 642: return (wp);
! 643: n++;
! 644: }
! 645: return (NULL);
! 646: }
! 647:
! 648: struct window_pane *
! 649: window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n)
! 650: {
! 651: for (; n > 0; n--) {
! 652: if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
! 653: wp = TAILQ_FIRST(&w->panes);
! 654: }
! 655:
! 656: return (wp);
! 657: }
! 658:
! 659: struct window_pane *
! 660: window_pane_previous_by_number(struct window *w, struct window_pane *wp,
! 661: u_int n)
! 662: {
! 663: for (; n > 0; n--) {
! 664: if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL)
! 665: wp = TAILQ_LAST(&w->panes, window_panes);
! 666: }
! 667:
! 668: return (wp);
! 669: }
! 670:
! 671: int
! 672: window_pane_index(struct window_pane *wp, u_int *i)
! 673: {
! 674: struct window_pane *wq;
! 675: struct window *w = wp->window;
! 676:
! 677: *i = options_get_number(w->options, "pane-base-index");
! 678: TAILQ_FOREACH(wq, &w->panes, entry) {
! 679: if (wp == wq) {
! 680: return (0);
! 681: }
! 682: (*i)++;
! 683: }
! 684:
! 685: return (-1);
! 686: }
! 687:
! 688: u_int
! 689: window_count_panes(struct window *w)
! 690: {
! 691: struct window_pane *wp;
! 692: u_int n;
! 693:
! 694: n = 0;
! 695: TAILQ_FOREACH(wp, &w->panes, entry)
! 696: n++;
! 697: return (n);
! 698: }
! 699:
! 700: void
! 701: window_destroy_panes(struct window *w)
! 702: {
! 703: struct window_pane *wp;
! 704:
! 705: while (!TAILQ_EMPTY(&w->panes)) {
! 706: wp = TAILQ_FIRST(&w->panes);
! 707: TAILQ_REMOVE(&w->panes, wp, entry);
! 708: window_pane_destroy(wp);
! 709: }
! 710: }
! 711:
! 712: /* Retuns the printable flags on a window, empty string if no flags set. */
! 713: char *
! 714: window_printable_flags(struct session *s, struct winlink *wl)
! 715: {
! 716: char flags[32];
! 717: int pos;
! 718:
! 719: pos = 0;
! 720: if (wl->flags & WINLINK_ACTIVITY)
! 721: flags[pos++] = '#';
! 722: if (wl->flags & WINLINK_BELL)
! 723: flags[pos++] = '!';
! 724: if (wl->flags & WINLINK_SILENCE)
! 725: flags[pos++] = '~';
! 726: if (wl == s->curw)
! 727: flags[pos++] = '*';
! 728: if (wl == TAILQ_FIRST(&s->lastw))
! 729: flags[pos++] = '-';
! 730: if (server_check_marked() && wl == marked_pane.wl)
! 731: flags[pos++] = 'M';
! 732: if (wl->window->flags & WINDOW_ZOOMED)
! 733: flags[pos++] = 'Z';
! 734: flags[pos] = '\0';
! 735: return (xstrdup(flags));
! 736: }
! 737:
! 738: struct window_pane *
! 739: window_pane_find_by_id_str(const char *s)
! 740: {
! 741: const char *errstr;
! 742: u_int id;
! 743:
! 744: if (*s != '%')
! 745: return (NULL);
! 746:
! 747: id = strtonum(s + 1, 0, UINT_MAX, &errstr);
! 748: if (errstr != NULL)
! 749: return (NULL);
! 750: return (window_pane_find_by_id(id));
! 751: }
! 752:
! 753: struct window_pane *
! 754: window_pane_find_by_id(u_int id)
! 755: {
! 756: struct window_pane wp;
! 757:
! 758: wp.id = id;
! 759: return (RB_FIND(window_pane_tree, &all_window_panes, &wp));
! 760: }
! 761:
! 762: static struct window_pane *
! 763: window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
! 764: {
! 765: struct window_pane *wp;
! 766: char host[HOST_NAME_MAX + 1];
! 767:
! 768: wp = xcalloc(1, sizeof *wp);
! 769: wp->window = w;
! 770:
! 771: wp->id = next_window_pane_id++;
! 772: RB_INSERT(window_pane_tree, &all_window_panes, wp);
! 773:
! 774: wp->argc = 0;
! 775: wp->argv = NULL;
! 776: wp->shell = NULL;
! 777: wp->cwd = NULL;
! 778:
! 779: wp->fd = -1;
! 780: wp->event = NULL;
! 781:
! 782: wp->mode = NULL;
! 783: wp->modeprefix = 1;
! 784:
! 785: wp->layout_cell = NULL;
! 786:
! 787: wp->xoff = 0;
! 788: wp->yoff = 0;
! 789:
! 790: wp->sx = sx;
! 791: wp->sy = sy;
! 792:
! 793: wp->pipe_fd = -1;
! 794: wp->pipe_off = 0;
! 795: wp->pipe_event = NULL;
! 796:
! 797: wp->saved_grid = NULL;
! 798:
! 799: memcpy(&wp->colgc, &grid_default_cell, sizeof wp->colgc);
! 800:
! 801: screen_init(&wp->base, sx, sy, hlimit);
! 802: wp->screen = &wp->base;
! 803:
! 804: screen_init(&wp->status_screen, 1, 1, 0);
! 805:
! 806: if (gethostname(host, sizeof host) == 0)
! 807: screen_set_title(&wp->base, host);
! 808:
! 809: input_init(wp);
! 810:
! 811: return (wp);
! 812: }
! 813:
! 814: static void
! 815: window_pane_destroy(struct window_pane *wp)
! 816: {
! 817: window_pane_reset_mode(wp);
! 818:
! 819: if (wp->fd != -1) {
! 820: #ifdef HAVE_UTEMPTER
! 821: utempter_remove_record(wp->fd);
! 822: #endif
! 823: bufferevent_free(wp->event);
! 824: close(wp->fd);
! 825: }
! 826:
! 827: input_free(wp);
! 828:
! 829: screen_free(&wp->base);
! 830: if (wp->saved_grid != NULL)
! 831: grid_destroy(wp->saved_grid);
! 832:
! 833: if (wp->pipe_fd != -1) {
! 834: bufferevent_free(wp->pipe_event);
! 835: close(wp->pipe_fd);
! 836: }
! 837:
! 838: if (event_initialized(&wp->resize_timer))
! 839: event_del(&wp->resize_timer);
! 840:
! 841: RB_REMOVE(window_pane_tree, &all_window_panes, wp);
! 842:
! 843: free((void *)wp->cwd);
! 844: free(wp->shell);
! 845: cmd_free_argv(wp->argc, wp->argv);
! 846: free(wp->palette);
! 847: free(wp);
! 848: }
! 849:
! 850: int
! 851: window_pane_spawn(struct window_pane *wp, int argc, char **argv,
! 852: const char *path, const char *shell, const char *cwd, struct environ *env,
! 853: struct termios *tio, char **cause)
! 854: {
! 855: struct winsize ws;
! 856: char *argv0, *cmd, **argvp;
! 857: const char *ptr, *first, *home;
! 858: struct termios tio2;
! 859: #ifdef HAVE_UTEMPTER
! 860: char s[32];
! 861: #endif
! 862: int i;
! 863:
! 864: if (wp->fd != -1) {
! 865: bufferevent_free(wp->event);
! 866: close(wp->fd);
! 867: }
! 868: if (argc > 0) {
! 869: cmd_free_argv(wp->argc, wp->argv);
! 870: wp->argc = argc;
! 871: wp->argv = cmd_copy_argv(argc, argv);
! 872: }
! 873: if (shell != NULL) {
! 874: free(wp->shell);
! 875: wp->shell = xstrdup(shell);
! 876: }
! 877: if (cwd != NULL) {
! 878: free((void *)wp->cwd);
! 879: wp->cwd = xstrdup(cwd);
! 880: }
! 881:
! 882: cmd = cmd_stringify_argv(wp->argc, wp->argv);
! 883: log_debug("spawn: %s -- %s", wp->shell, cmd);
! 884: for (i = 0; i < wp->argc; i++)
! 885: log_debug("spawn: argv[%d] = %s", i, wp->argv[i]);
! 886: environ_log(env, "spawn: ");
! 887:
! 888: memset(&ws, 0, sizeof ws);
! 889: ws.ws_col = screen_size_x(&wp->base);
! 890: ws.ws_row = screen_size_y(&wp->base);
! 891:
! 892: wp->pid = pty_fork(ptm_fd, &wp->fd, wp->tty, sizeof wp->tty, &ws);
! 893: switch (wp->pid) {
! 894: case -1:
! 895: wp->fd = -1;
! 896: xasprintf(cause, "%s: %s", cmd, strerror(errno));
! 897: free(cmd);
! 898: return (-1);
! 899: case 0:
! 900: if (chdir(wp->cwd) != 0) {
! 901: if ((home = find_home()) == NULL || chdir(home) != 0)
! 902: chdir("/");
! 903: }
! 904:
! 905: if (tcgetattr(STDIN_FILENO, &tio2) != 0)
! 906: fatal("tcgetattr failed");
! 907: if (tio != NULL)
! 908: memcpy(tio2.c_cc, tio->c_cc, sizeof tio2.c_cc);
! 909: tio2.c_cc[VERASE] = '\177';
! 910: #ifdef IUTF8
! 911: tio2.c_iflag |= IUTF8;
! 912: #endif
! 913: if (tcsetattr(STDIN_FILENO, TCSANOW, &tio2) != 0)
! 914: fatal("tcgetattr failed");
! 915:
! 916: closefrom(STDERR_FILENO + 1);
! 917:
! 918: if (path != NULL)
! 919: environ_set(env, "PATH", "%s", path);
! 920: environ_set(env, "TMUX_PANE", "%%%u", wp->id);
! 921: environ_push(env);
! 922:
! 923: clear_signals(1);
! 924: log_close();
! 925:
! 926: setenv("SHELL", wp->shell, 1);
! 927: ptr = strrchr(wp->shell, '/');
! 928:
! 929: /*
! 930: * If given one argument, assume it should be passed to sh -c;
! 931: * with more than one argument, use execvp(). If there is no
! 932: * arguments, create a login shell.
! 933: */
! 934: if (wp->argc > 0) {
! 935: if (wp->argc != 1) {
! 936: /* Copy to ensure argv ends in NULL. */
! 937: argvp = cmd_copy_argv(wp->argc, wp->argv);
! 938: execvp(argvp[0], argvp);
! 939: fatal("execvp failed");
! 940: }
! 941: first = wp->argv[0];
! 942:
! 943: if (ptr != NULL && *(ptr + 1) != '\0')
! 944: xasprintf(&argv0, "%s", ptr + 1);
! 945: else
! 946: xasprintf(&argv0, "%s", wp->shell);
! 947: execl(wp->shell, argv0, "-c", first, (char *)NULL);
! 948: fatal("execl failed");
! 949: }
! 950: if (ptr != NULL && *(ptr + 1) != '\0')
! 951: xasprintf(&argv0, "-%s", ptr + 1);
! 952: else
! 953: xasprintf(&argv0, "-%s", wp->shell);
! 954: execl(wp->shell, argv0, (char *)NULL);
! 955: fatal("execl failed");
! 956: }
! 957:
! 958: #ifdef HAVE_UTEMPTER
! 959: xsnprintf(s, sizeof s, "tmux(%lu).%%%u", (long) getpid(), wp->id);
! 960: utempter_add_record(wp->fd, s);
! 961: kill(getpid(), SIGCHLD);
! 962: #endif
! 963:
! 964: setblocking(wp->fd, 0);
! 965:
! 966: wp->event = bufferevent_new(wp->fd, window_pane_read_callback, NULL,
! 967: window_pane_error_callback, wp);
! 968:
! 969: bufferevent_setwatermark(wp->event, EV_READ, 0, READ_SIZE);
! 970: bufferevent_enable(wp->event, EV_READ|EV_WRITE);
! 971:
! 972: free(cmd);
! 973: return (0);
! 974: }
! 975:
! 976: static void
! 977: window_pane_read_callback(__unused struct bufferevent *bufev, void *data)
! 978: {
! 979: struct window_pane *wp = data;
! 980: struct evbuffer *evb = wp->event->input;
! 981: size_t size = EVBUFFER_LENGTH(evb);
! 982: char *new_data;
! 983: size_t new_size;
! 984:
! 985: new_size = size - wp->pipe_off;
! 986: if (wp->pipe_fd != -1 && new_size > 0) {
! 987: new_data = EVBUFFER_DATA(evb) + wp->pipe_off;
! 988: bufferevent_write(wp->pipe_event, new_data, new_size);
! 989: }
! 990:
! 991: log_debug("%%%u has %zu bytes", wp->id, size);
! 992: input_parse(wp);
! 993:
! 994: wp->pipe_off = EVBUFFER_LENGTH(evb);
! 995: }
! 996:
! 997: static void
! 998: window_pane_error_callback(__unused struct bufferevent *bufev,
! 999: __unused short what, void *data)
! 1000: {
! 1001: struct window_pane *wp = data;
! 1002:
! 1003: server_destroy_pane(wp, 1);
! 1004: }
! 1005:
! 1006: void
! 1007: window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
! 1008: {
! 1009: if (sx == wp->sx && sy == wp->sy)
! 1010: return;
! 1011: wp->sx = sx;
! 1012: wp->sy = sy;
! 1013:
! 1014: screen_resize(&wp->base, sx, sy, wp->saved_grid == NULL);
! 1015: if (wp->mode != NULL)
! 1016: wp->mode->resize(wp, sx, sy);
! 1017:
! 1018: wp->flags |= PANE_RESIZE;
! 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
! 1026: window_pane_alternate_on(struct window_pane *wp, struct grid_cell *gc,
! 1027: int cursor)
! 1028: {
! 1029: struct screen *s = &wp->base;
! 1030: u_int sx, sy;
! 1031:
! 1032: if (wp->saved_grid != NULL)
! 1033: return;
! 1034: if (!options_get_number(wp->window->options, "alternate-screen"))
! 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);
! 1041: if (cursor) {
! 1042: wp->saved_cx = s->cx;
! 1043: wp->saved_cy = s->cy;
! 1044: }
! 1045: memcpy(&wp->saved_cell, gc, sizeof wp->saved_cell);
! 1046:
! 1047: grid_view_clear(s->grid, 0, 0, sx, sy, 8);
! 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
! 1056: window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc,
! 1057: int cursor)
! 1058: {
! 1059: struct screen *s = &wp->base;
! 1060: u_int sx, sy;
! 1061:
! 1062: if (wp->saved_grid == NULL)
! 1063: return;
! 1064: if (!options_get_number(wp->window->options, "alternate-screen"))
! 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)
! 1074: screen_resize(s, sx, wp->saved_grid->sy, 1);
! 1075:
! 1076: /* Restore the grid, cursor position and cell. */
! 1077: grid_duplicate_lines(s->grid, screen_hsize(s), wp->saved_grid, 0, sy);
! 1078: if (cursor)
! 1079: s->cx = wp->saved_cx;
! 1080: if (s->cx > screen_size_x(s) - 1)
! 1081: s->cx = screen_size_x(s) - 1;
! 1082: if (cursor)
! 1083: s->cy = wp->saved_cy;
! 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;
! 1093: if (sy > wp->saved_grid->sy || sx != wp->saved_grid->sx)
! 1094: screen_resize(s, sx, sy, 1);
! 1095:
! 1096: grid_destroy(wp->saved_grid);
! 1097: wp->saved_grid = NULL;
! 1098:
! 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;
! 1133: wp->flags |= PANE_REDRAW;
! 1134: }
! 1135:
! 1136: int
! 1137: window_pane_get_palette(const struct window_pane *wp, int c)
! 1138: {
! 1139: int new;
! 1140:
! 1141: if (wp == NULL || wp->palette == NULL)
! 1142: return (-1);
! 1143:
! 1144: new = -1;
! 1145: if (c < 8)
! 1146: new = wp->palette[c];
! 1147: else if (c >= 90 && c <= 97)
! 1148: new = wp->palette[8 + c - 90];
! 1149: else if (c & COLOUR_FLAG_256)
! 1150: new = wp->palette[c & ~COLOUR_FLAG_256];
! 1151: if (new == 0)
! 1152: return (-1);
! 1153: return (new);
! 1154: }
! 1155:
! 1156: static void
! 1157: window_pane_mode_timer(__unused int fd, __unused short events, void *arg)
! 1158: {
! 1159: struct window_pane *wp = arg;
! 1160: struct timeval tv = { .tv_sec = 10 };
! 1161: int n = 0;
! 1162:
! 1163: evtimer_del(&wp->modetimer);
! 1164: evtimer_add(&wp->modetimer, &tv);
! 1165:
! 1166: log_debug("%%%u in mode: last=%ld", wp->id, (long)wp->modelast);
! 1167:
! 1168: if (wp->modelast < time(NULL) - WINDOW_MODE_TIMEOUT) {
! 1169: if (ioctl(wp->fd, FIONREAD, &n) == -1 || n > 0)
! 1170: window_pane_reset_mode(wp);
! 1171: }
! 1172: }
! 1173:
! 1174: int
! 1175: window_pane_set_mode(struct window_pane *wp, const struct window_mode *mode)
! 1176: {
! 1177: struct screen *s;
! 1178: struct timeval tv = { .tv_sec = 10 };
! 1179:
! 1180: if (wp->mode != NULL)
! 1181: return (1);
! 1182: wp->mode = mode;
! 1183:
! 1184: wp->modelast = time(NULL);
! 1185: evtimer_set(&wp->modetimer, window_pane_mode_timer, wp);
! 1186: evtimer_add(&wp->modetimer, &tv);
! 1187:
! 1188: if ((s = wp->mode->init(wp)) != NULL)
! 1189: wp->screen = s;
! 1190: wp->flags |= (PANE_REDRAW|PANE_CHANGED);
! 1191:
! 1192: server_status_window(wp->window);
! 1193: return (0);
! 1194: }
! 1195:
! 1196: void
! 1197: window_pane_reset_mode(struct window_pane *wp)
! 1198: {
! 1199: if (wp->mode == NULL)
! 1200: return;
! 1201:
! 1202: evtimer_del(&wp->modetimer);
! 1203:
! 1204: wp->mode->free(wp);
! 1205: wp->mode = NULL;
! 1206: wp->modeprefix = 1;
! 1207:
! 1208: wp->screen = &wp->base;
! 1209: wp->flags |= (PANE_REDRAW|PANE_CHANGED);
! 1210:
! 1211: server_status_window(wp->window);
! 1212: }
! 1213:
! 1214: void
! 1215: window_pane_key(struct window_pane *wp, struct client *c, struct session *s,
! 1216: key_code key, struct mouse_event *m)
! 1217: {
! 1218: struct window_pane *wp2;
! 1219:
! 1220: if (KEYC_IS_MOUSE(key) && m == NULL)
! 1221: return;
! 1222:
! 1223: if (wp->mode != NULL) {
! 1224: wp->modelast = time(NULL);
! 1225: if (wp->mode->key != NULL)
! 1226: wp->mode->key(wp, c, s, key, m);
! 1227: return;
! 1228: }
! 1229:
! 1230: if (wp->fd == -1 || wp->flags & PANE_INPUTOFF)
! 1231: return;
! 1232:
! 1233: input_key(wp, key, m);
! 1234:
! 1235: if (KEYC_IS_MOUSE(key))
! 1236: return;
! 1237: if (options_get_number(wp->window->options, "synchronize-panes")) {
! 1238: TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
! 1239: if (wp2 == wp || wp2->mode != NULL)
! 1240: continue;
! 1241: if (wp2->fd == -1 || wp2->flags & PANE_INPUTOFF)
! 1242: continue;
! 1243: if (window_pane_visible(wp2))
! 1244: input_key(wp2, key, NULL);
! 1245: }
! 1246: }
! 1247: }
! 1248:
! 1249: int
! 1250: window_pane_outside(struct window_pane *wp)
! 1251: {
! 1252: struct window *w = wp->window;
! 1253:
! 1254: if (wp->xoff >= w->sx || wp->yoff >= w->sy)
! 1255: return (1);
! 1256: if (wp->xoff + wp->sx > w->sx || wp->yoff + wp->sy > w->sy)
! 1257: return (1);
! 1258: return (0);
! 1259: }
! 1260:
! 1261: int
! 1262: window_pane_visible(struct window_pane *wp)
! 1263: {
! 1264: if (wp->layout_cell == NULL)
! 1265: return (0);
! 1266: return (!window_pane_outside(wp));
! 1267: }
! 1268:
! 1269: char *
! 1270: window_pane_search(struct window_pane *wp, const char *searchstr,
! 1271: u_int *lineno)
! 1272: {
! 1273: struct screen *s = &wp->base;
! 1274: char *newsearchstr, *line, *msg;
! 1275: u_int i;
! 1276:
! 1277: msg = NULL;
! 1278: xasprintf(&newsearchstr, "*%s*", searchstr);
! 1279:
! 1280: for (i = 0; i < screen_size_y(s); i++) {
! 1281: line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
! 1282: if (fnmatch(newsearchstr, line, 0) == 0) {
! 1283: msg = line;
! 1284: if (lineno != NULL)
! 1285: *lineno = i;
! 1286: break;
! 1287: }
! 1288: free(line);
! 1289: }
! 1290:
! 1291: free(newsearchstr);
! 1292: return (msg);
! 1293: }
! 1294:
! 1295: /* Get MRU pane from a list. */
! 1296: static struct window_pane *
! 1297: window_pane_choose_best(struct window_pane **list, u_int size)
! 1298: {
! 1299: struct window_pane *next, *best;
! 1300: u_int i;
! 1301:
! 1302: if (size == 0)
! 1303: return (NULL);
! 1304:
! 1305: best = list[0];
! 1306: for (i = 1; i < size; i++) {
! 1307: next = list[i];
! 1308: if (next->active_point > best->active_point)
! 1309: best = next;
! 1310: }
! 1311: return (best);
! 1312: }
! 1313:
! 1314: /*
! 1315: * Find the pane directly above another. We build a list of those adjacent to
! 1316: * top edge and then choose the best.
! 1317: */
! 1318: struct window_pane *
! 1319: window_pane_find_up(struct window_pane *wp)
! 1320: {
! 1321: struct window_pane *next, *best, **list;
! 1322: u_int edge, left, right, end, size;
! 1323: int status, found;
! 1324:
! 1325: if (wp == NULL || !window_pane_visible(wp))
! 1326: return (NULL);
! 1327: status = options_get_number(wp->window->options, "pane-border-status");
! 1328:
! 1329: list = NULL;
! 1330: size = 0;
! 1331:
! 1332: edge = wp->yoff;
! 1333: if (edge == (status == 1 ? 1 : 0))
! 1334: edge = wp->window->sy + 1 - (status == 2 ? 1 : 0);
! 1335:
! 1336: left = wp->xoff;
! 1337: right = wp->xoff + wp->sx;
! 1338:
! 1339: TAILQ_FOREACH(next, &wp->window->panes, entry) {
! 1340: if (next == wp || !window_pane_visible(next))
! 1341: continue;
! 1342: if (next->yoff + next->sy + 1 != edge)
! 1343: continue;
! 1344: end = next->xoff + next->sx - 1;
! 1345:
! 1346: found = 0;
! 1347: if (next->xoff < left && end > right)
! 1348: found = 1;
! 1349: else if (next->xoff >= left && next->xoff <= right)
! 1350: found = 1;
! 1351: else if (end >= left && end <= right)
! 1352: found = 1;
! 1353: if (!found)
! 1354: continue;
! 1355: list = xreallocarray(list, size + 1, sizeof *list);
! 1356: list[size++] = next;
! 1357: }
! 1358:
! 1359: best = window_pane_choose_best(list, size);
! 1360: free(list);
! 1361: return (best);
! 1362: }
! 1363:
! 1364: /* Find the pane directly below another. */
! 1365: struct window_pane *
! 1366: window_pane_find_down(struct window_pane *wp)
! 1367: {
! 1368: struct window_pane *next, *best, **list;
! 1369: u_int edge, left, right, end, size;
! 1370: int status, found;
! 1371:
! 1372: if (wp == NULL || !window_pane_visible(wp))
! 1373: return (NULL);
! 1374: status = options_get_number(wp->window->options, "pane-border-status");
! 1375:
! 1376: list = NULL;
! 1377: size = 0;
! 1378:
! 1379: edge = wp->yoff + wp->sy + 1;
! 1380: if (edge >= wp->window->sy - (status == 2 ? 1 : 0))
! 1381: edge = (status == 1 ? 1 : 0);
! 1382:
! 1383: left = wp->xoff;
! 1384: right = wp->xoff + wp->sx;
! 1385:
! 1386: TAILQ_FOREACH(next, &wp->window->panes, entry) {
! 1387: if (next == wp || !window_pane_visible(next))
! 1388: continue;
! 1389: if (next->yoff != edge)
! 1390: continue;
! 1391: end = next->xoff + next->sx - 1;
! 1392:
! 1393: found = 0;
! 1394: if (next->xoff < left && end > right)
! 1395: found = 1;
! 1396: else if (next->xoff >= left && next->xoff <= right)
! 1397: found = 1;
! 1398: else if (end >= left && end <= right)
! 1399: found = 1;
! 1400: if (!found)
! 1401: continue;
! 1402: list = xreallocarray(list, size + 1, sizeof *list);
! 1403: list[size++] = next;
! 1404: }
! 1405:
! 1406: best = window_pane_choose_best(list, size);
! 1407: free(list);
! 1408: return (best);
! 1409: }
! 1410:
! 1411: /* Find the pane directly to the left of another. */
! 1412: struct window_pane *
! 1413: window_pane_find_left(struct window_pane *wp)
! 1414: {
! 1415: struct window_pane *next, *best, **list;
! 1416: u_int edge, top, bottom, end, size;
! 1417: int found;
! 1418:
! 1419: if (wp == NULL || !window_pane_visible(wp))
! 1420: return (NULL);
! 1421:
! 1422: list = NULL;
! 1423: size = 0;
! 1424:
! 1425: edge = wp->xoff;
! 1426: if (edge == 0)
! 1427: edge = wp->window->sx + 1;
! 1428:
! 1429: top = wp->yoff;
! 1430: bottom = wp->yoff + wp->sy;
! 1431:
! 1432: TAILQ_FOREACH(next, &wp->window->panes, entry) {
! 1433: if (next == wp || !window_pane_visible(next))
! 1434: continue;
! 1435: if (next->xoff + next->sx + 1 != edge)
! 1436: continue;
! 1437: end = next->yoff + next->sy - 1;
! 1438:
! 1439: found = 0;
! 1440: if (next->yoff < top && end > bottom)
! 1441: found = 1;
! 1442: else if (next->yoff >= top && next->yoff <= bottom)
! 1443: found = 1;
! 1444: else if (end >= top && end <= bottom)
! 1445: found = 1;
! 1446: if (!found)
! 1447: continue;
! 1448: list = xreallocarray(list, size + 1, sizeof *list);
! 1449: list[size++] = next;
! 1450: }
! 1451:
! 1452: best = window_pane_choose_best(list, size);
! 1453: free(list);
! 1454: return (best);
! 1455: }
! 1456:
! 1457: /* Find the pane directly to the right of another. */
! 1458: struct window_pane *
! 1459: window_pane_find_right(struct window_pane *wp)
! 1460: {
! 1461: struct window_pane *next, *best, **list;
! 1462: u_int edge, top, bottom, end, size;
! 1463: int found;
! 1464:
! 1465: if (wp == NULL || !window_pane_visible(wp))
! 1466: return (NULL);
! 1467:
! 1468: list = NULL;
! 1469: size = 0;
! 1470:
! 1471: edge = wp->xoff + wp->sx + 1;
! 1472: if (edge >= wp->window->sx)
! 1473: edge = 0;
! 1474:
! 1475: top = wp->yoff;
! 1476: bottom = wp->yoff + wp->sy;
! 1477:
! 1478: TAILQ_FOREACH(next, &wp->window->panes, entry) {
! 1479: if (next == wp || !window_pane_visible(next))
! 1480: continue;
! 1481: if (next->xoff != edge)
! 1482: continue;
! 1483: end = next->yoff + next->sy - 1;
! 1484:
! 1485: found = 0;
! 1486: if (next->yoff < top && end > bottom)
! 1487: found = 1;
! 1488: else if (next->yoff >= top && next->yoff <= bottom)
! 1489: found = 1;
! 1490: else if (end >= top && end <= bottom)
! 1491: found = 1;
! 1492: if (!found)
! 1493: continue;
! 1494: list = xreallocarray(list, size + 1, sizeof *list);
! 1495: list[size++] = next;
! 1496: }
! 1497:
! 1498: best = window_pane_choose_best(list, size);
! 1499: free(list);
! 1500: return (best);
! 1501: }
! 1502:
! 1503: /* Clear alert flags for a winlink */
! 1504: void
! 1505: winlink_clear_flags(struct winlink *wl)
! 1506: {
! 1507: struct winlink *loop;
! 1508:
! 1509: wl->window->flags &= ~WINDOW_ALERTFLAGS;
! 1510: TAILQ_FOREACH(loop, &wl->window->winlinks, wentry) {
! 1511: if ((loop->flags & WINLINK_ALERTFLAGS) != 0) {
! 1512: loop->flags &= ~WINLINK_ALERTFLAGS;
! 1513: server_status_session(loop->session);
! 1514: }
! 1515: }
! 1516: }
! 1517:
! 1518: /* Shuffle window indexes up. */
! 1519: int
! 1520: winlink_shuffle_up(struct session *s, struct winlink *wl)
! 1521: {
! 1522: int idx, last;
! 1523:
! 1524: idx = wl->idx + 1;
! 1525:
! 1526: /* Find the next free index. */
! 1527: for (last = idx; last < INT_MAX; last++) {
! 1528: if (winlink_find_by_index(&s->windows, last) == NULL)
! 1529: break;
! 1530: }
! 1531: if (last == INT_MAX)
! 1532: return (-1);
! 1533:
! 1534: /* Move everything from last - 1 to idx up a bit. */
! 1535: for (; last > idx; last--) {
! 1536: wl = winlink_find_by_index(&s->windows, last - 1);
! 1537: server_link_window(s, wl, s, last, 0, 0, NULL);
! 1538: server_unlink_window(s, wl);
! 1539: }
! 1540:
! 1541: return (idx);
! 1542: }
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