1 /* $OpenBSD: window.c,v 1.287 2023/10/23 08:12:00 nicm Exp $ */ 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 <ctype.h> 23 #include <errno.h> 24 #include <fcntl.h> 25 #include <fnmatch.h> 26 #include <regex.h> 27 #include <signal.h> 28 #include <stdint.h> 29 #include <stdlib.h> 30 #include <string.h> 31 #include <time.h> 32 #include <unistd.h> 33 #include <util.h> 34 #include <vis.h> 35 36 #include "tmux.h" 37 38 /* 39 * Each window is attached to a number of panes, each of which is a pty. This 40 * file contains code to handle them. 41 * 42 * A pane has two buffers attached, these are filled and emptied by the main 43 * server poll loop. Output data is received from pty's in screen format, 44 * translated and returned as a series of escape sequences and strings via 45 * input_parse (in input.c). Input data is received as key codes and written 46 * directly via input_key. 47 * 48 * Each pane also has a "virtual" screen (screen.c) which contains the current 49 * state and is redisplayed when the window is reattached to a client. 50 * 51 * Windows are stored directly on a global array and wrapped in any number of 52 * winlink structs to be linked onto local session RB trees. A reference count 53 * is maintained and a window removed from the global list and destroyed when 54 * it reaches zero. 55 */ 56 57 /* Global window list. */ 58 struct windows windows; 59 60 /* Global panes tree. */ 61 struct window_pane_tree all_window_panes; 62 static u_int next_window_pane_id; 63 static u_int next_window_id; 64 static u_int next_active_point; 65 66 struct window_pane_input_data { 67 struct cmdq_item *item; 68 u_int wp; 69 struct client_file *file; 70 }; 71 72 static struct window_pane *window_pane_create(struct window *, u_int, u_int, 73 u_int); 74 static void window_pane_destroy(struct window_pane *); 75 76 RB_GENERATE(windows, window, entry, window_cmp); 77 RB_GENERATE(winlinks, winlink, entry, winlink_cmp); 78 RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp); 79 80 int 81 window_cmp(struct window *w1, struct window *w2) 82 { 83 return (w1->id - w2->id); 84 } 85 86 int 87 winlink_cmp(struct winlink *wl1, struct winlink *wl2) 88 { 89 return (wl1->idx - wl2->idx); 90 } 91 92 int 93 window_pane_cmp(struct window_pane *wp1, struct window_pane *wp2) 94 { 95 return (wp1->id - wp2->id); 96 } 97 98 struct winlink * 99 winlink_find_by_window(struct winlinks *wwl, struct window *w) 100 { 101 struct winlink *wl; 102 103 RB_FOREACH(wl, winlinks, wwl) { 104 if (wl->window == w) 105 return (wl); 106 } 107 108 return (NULL); 109 } 110 111 struct winlink * 112 winlink_find_by_index(struct winlinks *wwl, int idx) 113 { 114 struct winlink wl; 115 116 if (idx < 0) 117 fatalx("bad index"); 118 119 wl.idx = idx; 120 return (RB_FIND(winlinks, wwl, &wl)); 121 } 122 123 struct winlink * 124 winlink_find_by_window_id(struct winlinks *wwl, u_int id) 125 { 126 struct winlink *wl; 127 128 RB_FOREACH(wl, winlinks, wwl) { 129 if (wl->window->id == id) 130 return (wl); 131 } 132 return (NULL); 133 } 134 135 static int 136 winlink_next_index(struct winlinks *wwl, int idx) 137 { 138 int i; 139 140 i = idx; 141 do { 142 if (winlink_find_by_index(wwl, i) == NULL) 143 return (i); 144 if (i == INT_MAX) 145 i = 0; 146 else 147 i++; 148 } while (i != idx); 149 return (-1); 150 } 151 152 u_int 153 winlink_count(struct winlinks *wwl) 154 { 155 struct winlink *wl; 156 u_int n; 157 158 n = 0; 159 RB_FOREACH(wl, winlinks, wwl) 160 n++; 161 162 return (n); 163 } 164 165 struct winlink * 166 winlink_add(struct winlinks *wwl, int idx) 167 { 168 struct winlink *wl; 169 170 if (idx < 0) { 171 if ((idx = winlink_next_index(wwl, -idx - 1)) == -1) 172 return (NULL); 173 } else if (winlink_find_by_index(wwl, idx) != NULL) 174 return (NULL); 175 176 wl = xcalloc(1, sizeof *wl); 177 wl->idx = idx; 178 RB_INSERT(winlinks, wwl, wl); 179 180 return (wl); 181 } 182 183 void 184 winlink_set_window(struct winlink *wl, struct window *w) 185 { 186 if (wl->window != NULL) { 187 TAILQ_REMOVE(&wl->window->winlinks, wl, wentry); 188 window_remove_ref(wl->window, __func__); 189 } 190 TAILQ_INSERT_TAIL(&w->winlinks, wl, wentry); 191 wl->window = w; 192 window_add_ref(w, __func__); 193 } 194 195 void 196 winlink_remove(struct winlinks *wwl, struct winlink *wl) 197 { 198 struct window *w = wl->window; 199 200 if (w != NULL) { 201 TAILQ_REMOVE(&w->winlinks, wl, wentry); 202 window_remove_ref(w, __func__); 203 } 204 205 RB_REMOVE(winlinks, wwl, wl); 206 free(wl); 207 } 208 209 struct winlink * 210 winlink_next(struct winlink *wl) 211 { 212 return (RB_NEXT(winlinks, wwl, wl)); 213 } 214 215 struct winlink * 216 winlink_previous(struct winlink *wl) 217 { 218 return (RB_PREV(winlinks, wwl, wl)); 219 } 220 221 struct winlink * 222 winlink_next_by_number(struct winlink *wl, struct session *s, int n) 223 { 224 for (; n > 0; n--) { 225 if ((wl = RB_NEXT(winlinks, wwl, wl)) == NULL) 226 wl = RB_MIN(winlinks, &s->windows); 227 } 228 229 return (wl); 230 } 231 232 struct winlink * 233 winlink_previous_by_number(struct winlink *wl, struct session *s, int n) 234 { 235 for (; n > 0; n--) { 236 if ((wl = RB_PREV(winlinks, wwl, wl)) == NULL) 237 wl = RB_MAX(winlinks, &s->windows); 238 } 239 240 return (wl); 241 } 242 243 void 244 winlink_stack_push(struct winlink_stack *stack, struct winlink *wl) 245 { 246 if (wl == NULL) 247 return; 248 249 winlink_stack_remove(stack, wl); 250 TAILQ_INSERT_HEAD(stack, wl, sentry); 251 wl->flags |= WINLINK_VISITED; 252 } 253 254 void 255 winlink_stack_remove(struct winlink_stack *stack, struct winlink *wl) 256 { 257 if (wl != NULL && (wl->flags & WINLINK_VISITED)) { 258 TAILQ_REMOVE(stack, wl, sentry); 259 wl->flags &= ~WINLINK_VISITED; 260 } 261 } 262 263 struct window * 264 window_find_by_id_str(const char *s) 265 { 266 const char *errstr; 267 u_int id; 268 269 if (*s != '@') 270 return (NULL); 271 272 id = strtonum(s + 1, 0, UINT_MAX, &errstr); 273 if (errstr != NULL) 274 return (NULL); 275 return (window_find_by_id(id)); 276 } 277 278 struct window * 279 window_find_by_id(u_int id) 280 { 281 struct window w; 282 283 w.id = id; 284 return (RB_FIND(windows, &windows, &w)); 285 } 286 287 void 288 window_update_activity(struct window *w) 289 { 290 gettimeofday(&w->activity_time, NULL); 291 alerts_queue(w, WINDOW_ACTIVITY); 292 } 293 294 struct window * 295 window_create(u_int sx, u_int sy, u_int xpixel, u_int ypixel) 296 { 297 struct window *w; 298 299 if (xpixel == 0) 300 xpixel = DEFAULT_XPIXEL; 301 if (ypixel == 0) 302 ypixel = DEFAULT_YPIXEL; 303 304 w = xcalloc(1, sizeof *w); 305 w->name = xstrdup(""); 306 w->flags = 0; 307 308 TAILQ_INIT(&w->panes); 309 TAILQ_INIT(&w->last_panes); 310 w->active = NULL; 311 312 w->lastlayout = -1; 313 w->layout_root = NULL; 314 315 w->sx = sx; 316 w->sy = sy; 317 w->manual_sx = sx; 318 w->manual_sy = sy; 319 w->xpixel = xpixel; 320 w->ypixel = ypixel; 321 322 w->options = options_create(global_w_options); 323 324 w->references = 0; 325 TAILQ_INIT(&w->winlinks); 326 327 w->id = next_window_id++; 328 RB_INSERT(windows, &windows, w); 329 330 window_set_fill_character(w); 331 window_update_activity(w); 332 333 log_debug("%s: @%u create %ux%u (%ux%u)", __func__, w->id, sx, sy, 334 w->xpixel, w->ypixel); 335 return (w); 336 } 337 338 static void 339 window_destroy(struct window *w) 340 { 341 log_debug("window @%u destroyed (%d references)", w->id, w->references); 342 343 window_unzoom(w); 344 RB_REMOVE(windows, &windows, w); 345 346 if (w->layout_root != NULL) 347 layout_free_cell(w->layout_root); 348 if (w->saved_layout_root != NULL) 349 layout_free_cell(w->saved_layout_root); 350 free(w->old_layout); 351 352 window_destroy_panes(w); 353 354 if (event_initialized(&w->name_event)) 355 evtimer_del(&w->name_event); 356 357 if (event_initialized(&w->alerts_timer)) 358 evtimer_del(&w->alerts_timer); 359 if (event_initialized(&w->offset_timer)) 360 event_del(&w->offset_timer); 361 362 options_free(w->options); 363 free(w->fill_character); 364 365 free(w->name); 366 free(w); 367 } 368 369 int 370 window_pane_destroy_ready(struct window_pane *wp) 371 { 372 int n; 373 374 if (wp->pipe_fd != -1) { 375 if (EVBUFFER_LENGTH(wp->pipe_event->output) != 0) 376 return (0); 377 if (ioctl(wp->fd, FIONREAD, &n) != -1 && n > 0) 378 return (0); 379 } 380 381 if (~wp->flags & PANE_EXITED) 382 return (0); 383 return (1); 384 } 385 386 void 387 window_add_ref(struct window *w, const char *from) 388 { 389 w->references++; 390 log_debug("%s: @%u %s, now %d", __func__, w->id, from, w->references); 391 } 392 393 void 394 window_remove_ref(struct window *w, const char *from) 395 { 396 w->references--; 397 log_debug("%s: @%u %s, now %d", __func__, w->id, from, w->references); 398 399 if (w->references == 0) 400 window_destroy(w); 401 } 402 403 void 404 window_set_name(struct window *w, const char *new_name) 405 { 406 free(w->name); 407 utf8_stravis(&w->name, new_name, VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL); 408 notify_window("window-renamed", w); 409 } 410 411 void 412 window_resize(struct window *w, u_int sx, u_int sy, int xpixel, int ypixel) 413 { 414 if (xpixel == 0) 415 xpixel = DEFAULT_XPIXEL; 416 if (ypixel == 0) 417 ypixel = DEFAULT_YPIXEL; 418 419 log_debug("%s: @%u resize %ux%u (%ux%u)", __func__, w->id, sx, sy, 420 xpixel == -1 ? w->xpixel : (u_int)xpixel, 421 ypixel == -1 ? w->ypixel : (u_int)ypixel); 422 w->sx = sx; 423 w->sy = sy; 424 if (xpixel != -1) 425 w->xpixel = xpixel; 426 if (ypixel != -1) 427 w->ypixel = ypixel; 428 } 429 430 void 431 window_pane_send_resize(struct window_pane *wp, u_int sx, u_int sy) 432 { 433 struct window *w = wp->window; 434 struct winsize ws; 435 436 if (wp->fd == -1) 437 return; 438 439 log_debug("%s: %%%u resize to %u,%u", __func__, wp->id, sx, sy); 440 441 memset(&ws, 0, sizeof ws); 442 ws.ws_col = sx; 443 ws.ws_row = sy; 444 ws.ws_xpixel = w->xpixel * ws.ws_col; 445 ws.ws_ypixel = w->ypixel * ws.ws_row; 446 if (ioctl(wp->fd, TIOCSWINSZ, &ws) == -1) 447 fatal("ioctl failed"); 448 } 449 450 int 451 window_has_pane(struct window *w, struct window_pane *wp) 452 { 453 struct window_pane *wp1; 454 455 TAILQ_FOREACH(wp1, &w->panes, entry) { 456 if (wp1 == wp) 457 return (1); 458 } 459 return (0); 460 } 461 462 void 463 window_update_focus(struct window *w) 464 { 465 if (w != NULL) { 466 log_debug("%s: @%u", __func__, w->id); 467 window_pane_update_focus(w->active); 468 } 469 } 470 471 void 472 window_pane_update_focus(struct window_pane *wp) 473 { 474 struct client *c; 475 int focused = 0; 476 477 if (wp != NULL) { 478 if (wp != wp->window->active) 479 focused = 0; 480 else { 481 TAILQ_FOREACH(c, &clients, entry) { 482 if (c->session != NULL && 483 c->session->attached != 0 && 484 (c->flags & CLIENT_FOCUSED) && 485 c->session->curw->window == wp->window) { 486 focused = 1; 487 break; 488 } 489 } 490 } 491 if (!focused && (wp->flags & PANE_FOCUSED)) { 492 log_debug("%s: %%%u focus out", __func__, wp->id); 493 if (wp->base.mode & MODE_FOCUSON) 494 bufferevent_write(wp->event, "\033[O", 3); 495 notify_pane("pane-focus-out", wp); 496 wp->flags &= ~PANE_FOCUSED; 497 } else if (focused && (~wp->flags & PANE_FOCUSED)) { 498 log_debug("%s: %%%u focus in", __func__, wp->id); 499 if (wp->base.mode & MODE_FOCUSON) 500 bufferevent_write(wp->event, "\033[I", 3); 501 notify_pane("pane-focus-in", wp); 502 wp->flags |= PANE_FOCUSED; 503 } else 504 log_debug("%s: %%%u focus unchanged", __func__, wp->id); 505 } 506 } 507 508 int 509 window_set_active_pane(struct window *w, struct window_pane *wp, int notify) 510 { 511 struct window_pane *lastwp; 512 513 log_debug("%s: pane %%%u", __func__, wp->id); 514 515 if (wp == w->active) 516 return (0); 517 lastwp = w->active; 518 519 window_pane_stack_remove(&w->last_panes, wp); 520 window_pane_stack_push(&w->last_panes, lastwp); 521 522 w->active = wp; 523 w->active->active_point = next_active_point++; 524 w->active->flags |= PANE_CHANGED; 525 526 if (options_get_number(global_options, "focus-events")) { 527 window_pane_update_focus(lastwp); 528 window_pane_update_focus(w->active); 529 } 530 531 tty_update_window_offset(w); 532 533 if (notify) 534 notify_window("window-pane-changed", w); 535 return (1); 536 } 537 538 static int 539 window_pane_get_palette(struct window_pane *wp, int c) 540 { 541 if (wp == NULL) 542 return (-1); 543 return (colour_palette_get(&wp->palette, c)); 544 } 545 546 void 547 window_redraw_active_switch(struct window *w, struct window_pane *wp) 548 { 549 struct grid_cell *gc1, *gc2; 550 int c1, c2; 551 552 if (wp == w->active) 553 return; 554 555 for (;;) { 556 /* 557 * If the active and inactive styles or palettes are different, 558 * need to redraw the panes. 559 */ 560 gc1 = &wp->cached_gc; 561 gc2 = &wp->cached_active_gc; 562 if (!grid_cells_look_equal(gc1, gc2)) 563 wp->flags |= PANE_REDRAW; 564 else { 565 c1 = window_pane_get_palette(wp, gc1->fg); 566 c2 = window_pane_get_palette(wp, gc2->fg); 567 if (c1 != c2) 568 wp->flags |= PANE_REDRAW; 569 else { 570 c1 = window_pane_get_palette(wp, gc1->bg); 571 c2 = window_pane_get_palette(wp, gc2->bg); 572 if (c1 != c2) 573 wp->flags |= PANE_REDRAW; 574 } 575 } 576 if (wp == w->active) 577 break; 578 wp = w->active; 579 } 580 } 581 582 struct window_pane * 583 window_get_active_at(struct window *w, u_int x, u_int y) 584 { 585 struct window_pane *wp; 586 587 TAILQ_FOREACH(wp, &w->panes, entry) { 588 if (!window_pane_visible(wp)) 589 continue; 590 if (x < wp->xoff || x > wp->xoff + wp->sx) 591 continue; 592 if (y < wp->yoff || y > wp->yoff + wp->sy) 593 continue; 594 return (wp); 595 } 596 return (NULL); 597 } 598 599 struct window_pane * 600 window_find_string(struct window *w, const char *s) 601 { 602 u_int x, y, top = 0, bottom = w->sy - 1; 603 int status; 604 605 x = w->sx / 2; 606 y = w->sy / 2; 607 608 status = options_get_number(w->options, "pane-border-status"); 609 if (status == PANE_STATUS_TOP) 610 top++; 611 else if (status == PANE_STATUS_BOTTOM) 612 bottom--; 613 614 if (strcasecmp(s, "top") == 0) 615 y = top; 616 else if (strcasecmp(s, "bottom") == 0) 617 y = bottom; 618 else if (strcasecmp(s, "left") == 0) 619 x = 0; 620 else if (strcasecmp(s, "right") == 0) 621 x = w->sx - 1; 622 else if (strcasecmp(s, "top-left") == 0) { 623 x = 0; 624 y = top; 625 } else if (strcasecmp(s, "top-right") == 0) { 626 x = w->sx - 1; 627 y = top; 628 } else if (strcasecmp(s, "bottom-left") == 0) { 629 x = 0; 630 y = bottom; 631 } else if (strcasecmp(s, "bottom-right") == 0) { 632 x = w->sx - 1; 633 y = bottom; 634 } else 635 return (NULL); 636 637 return (window_get_active_at(w, x, y)); 638 } 639 640 int 641 window_zoom(struct window_pane *wp) 642 { 643 struct window *w = wp->window; 644 struct window_pane *wp1; 645 646 if (w->flags & WINDOW_ZOOMED) 647 return (-1); 648 649 if (window_count_panes(w) == 1) 650 return (-1); 651 652 if (w->active != wp) 653 window_set_active_pane(w, wp, 1); 654 655 TAILQ_FOREACH(wp1, &w->panes, entry) { 656 wp1->saved_layout_cell = wp1->layout_cell; 657 wp1->layout_cell = NULL; 658 } 659 660 w->saved_layout_root = w->layout_root; 661 layout_init(w, wp); 662 w->flags |= WINDOW_ZOOMED; 663 notify_window("window-layout-changed", w); 664 665 return (0); 666 } 667 668 int 669 window_unzoom(struct window *w) 670 { 671 struct window_pane *wp; 672 673 if (!(w->flags & WINDOW_ZOOMED)) 674 return (-1); 675 676 w->flags &= ~WINDOW_ZOOMED; 677 layout_free(w); 678 w->layout_root = w->saved_layout_root; 679 w->saved_layout_root = NULL; 680 681 TAILQ_FOREACH(wp, &w->panes, entry) { 682 wp->layout_cell = wp->saved_layout_cell; 683 wp->saved_layout_cell = NULL; 684 } 685 layout_fix_panes(w, NULL); 686 notify_window("window-layout-changed", w); 687 688 return (0); 689 } 690 691 int 692 window_push_zoom(struct window *w, int always, int flag) 693 { 694 log_debug("%s: @%u %d", __func__, w->id, 695 flag && (w->flags & WINDOW_ZOOMED)); 696 if (flag && (always || (w->flags & WINDOW_ZOOMED))) 697 w->flags |= WINDOW_WASZOOMED; 698 else 699 w->flags &= ~WINDOW_WASZOOMED; 700 return (window_unzoom(w) == 0); 701 } 702 703 int 704 window_pop_zoom(struct window *w) 705 { 706 log_debug("%s: @%u %d", __func__, w->id, 707 !!(w->flags & WINDOW_WASZOOMED)); 708 if (w->flags & WINDOW_WASZOOMED) 709 return (window_zoom(w->active) == 0); 710 return (0); 711 } 712 713 struct window_pane * 714 window_add_pane(struct window *w, struct window_pane *other, u_int hlimit, 715 int flags) 716 { 717 struct window_pane *wp; 718 719 if (other == NULL) 720 other = w->active; 721 722 wp = window_pane_create(w, w->sx, w->sy, hlimit); 723 if (TAILQ_EMPTY(&w->panes)) { 724 log_debug("%s: @%u at start", __func__, w->id); 725 TAILQ_INSERT_HEAD(&w->panes, wp, entry); 726 } else if (flags & SPAWN_BEFORE) { 727 log_debug("%s: @%u before %%%u", __func__, w->id, wp->id); 728 if (flags & SPAWN_FULLSIZE) 729 TAILQ_INSERT_HEAD(&w->panes, wp, entry); 730 else 731 TAILQ_INSERT_BEFORE(other, wp, entry); 732 } else { 733 log_debug("%s: @%u after %%%u", __func__, w->id, wp->id); 734 if (flags & SPAWN_FULLSIZE) 735 TAILQ_INSERT_TAIL(&w->panes, wp, entry); 736 else 737 TAILQ_INSERT_AFTER(&w->panes, other, wp, entry); 738 } 739 return (wp); 740 } 741 742 void 743 window_lost_pane(struct window *w, struct window_pane *wp) 744 { 745 log_debug("%s: @%u pane %%%u", __func__, w->id, wp->id); 746 747 if (wp == marked_pane.wp) 748 server_clear_marked(); 749 750 window_pane_stack_remove(&w->last_panes, wp); 751 if (wp == w->active) { 752 w->active = TAILQ_FIRST(&w->last_panes); 753 if (w->active == NULL) { 754 w->active = TAILQ_PREV(wp, window_panes, entry); 755 if (w->active == NULL) 756 w->active = TAILQ_NEXT(wp, entry); 757 } 758 if (w->active != NULL) { 759 window_pane_stack_remove(&w->last_panes, w->active); 760 w->active->flags |= PANE_CHANGED; 761 notify_window("window-pane-changed", w); 762 window_update_focus(w); 763 } 764 } 765 } 766 767 void 768 window_remove_pane(struct window *w, struct window_pane *wp) 769 { 770 window_lost_pane(w, wp); 771 772 TAILQ_REMOVE(&w->panes, wp, entry); 773 window_pane_destroy(wp); 774 } 775 776 struct window_pane * 777 window_pane_at_index(struct window *w, u_int idx) 778 { 779 struct window_pane *wp; 780 u_int n; 781 782 n = options_get_number(w->options, "pane-base-index"); 783 TAILQ_FOREACH(wp, &w->panes, entry) { 784 if (n == idx) 785 return (wp); 786 n++; 787 } 788 return (NULL); 789 } 790 791 struct window_pane * 792 window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n) 793 { 794 for (; n > 0; n--) { 795 if ((wp = TAILQ_NEXT(wp, entry)) == NULL) 796 wp = TAILQ_FIRST(&w->panes); 797 } 798 799 return (wp); 800 } 801 802 struct window_pane * 803 window_pane_previous_by_number(struct window *w, struct window_pane *wp, 804 u_int n) 805 { 806 for (; n > 0; n--) { 807 if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL) 808 wp = TAILQ_LAST(&w->panes, window_panes); 809 } 810 811 return (wp); 812 } 813 814 int 815 window_pane_index(struct window_pane *wp, u_int *i) 816 { 817 struct window_pane *wq; 818 struct window *w = wp->window; 819 820 *i = options_get_number(w->options, "pane-base-index"); 821 TAILQ_FOREACH(wq, &w->panes, entry) { 822 if (wp == wq) { 823 return (0); 824 } 825 (*i)++; 826 } 827 828 return (-1); 829 } 830 831 u_int 832 window_count_panes(struct window *w) 833 { 834 struct window_pane *wp; 835 u_int n; 836 837 n = 0; 838 TAILQ_FOREACH(wp, &w->panes, entry) 839 n++; 840 return (n); 841 } 842 843 void 844 window_destroy_panes(struct window *w) 845 { 846 struct window_pane *wp; 847 848 while (!TAILQ_EMPTY(&w->last_panes)) { 849 wp = TAILQ_FIRST(&w->last_panes); 850 window_pane_stack_remove(&w->last_panes, wp); 851 } 852 853 while (!TAILQ_EMPTY(&w->panes)) { 854 wp = TAILQ_FIRST(&w->panes); 855 TAILQ_REMOVE(&w->panes, wp, entry); 856 window_pane_destroy(wp); 857 } 858 } 859 860 const char * 861 window_printable_flags(struct winlink *wl, int escape) 862 { 863 struct session *s = wl->session; 864 static char flags[32]; 865 int pos; 866 867 pos = 0; 868 if (wl->flags & WINLINK_ACTIVITY) { 869 flags[pos++] = '#'; 870 if (escape) 871 flags[pos++] = '#'; 872 } 873 if (wl->flags & WINLINK_BELL) 874 flags[pos++] = '!'; 875 if (wl->flags & WINLINK_SILENCE) 876 flags[pos++] = '~'; 877 if (wl == s->curw) 878 flags[pos++] = '*'; 879 if (wl == TAILQ_FIRST(&s->lastw)) 880 flags[pos++] = '-'; 881 if (server_check_marked() && wl == marked_pane.wl) 882 flags[pos++] = 'M'; 883 if (wl->window->flags & WINDOW_ZOOMED) 884 flags[pos++] = 'Z'; 885 flags[pos] = '\0'; 886 return (flags); 887 } 888 889 struct window_pane * 890 window_pane_find_by_id_str(const char *s) 891 { 892 const char *errstr; 893 u_int id; 894 895 if (*s != '%') 896 return (NULL); 897 898 id = strtonum(s + 1, 0, UINT_MAX, &errstr); 899 if (errstr != NULL) 900 return (NULL); 901 return (window_pane_find_by_id(id)); 902 } 903 904 struct window_pane * 905 window_pane_find_by_id(u_int id) 906 { 907 struct window_pane wp; 908 909 wp.id = id; 910 return (RB_FIND(window_pane_tree, &all_window_panes, &wp)); 911 } 912 913 static struct window_pane * 914 window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit) 915 { 916 struct window_pane *wp; 917 char host[HOST_NAME_MAX + 1]; 918 919 wp = xcalloc(1, sizeof *wp); 920 wp->window = w; 921 wp->options = options_create(w->options); 922 wp->flags = PANE_STYLECHANGED; 923 924 wp->id = next_window_pane_id++; 925 RB_INSERT(window_pane_tree, &all_window_panes, wp); 926 927 wp->fd = -1; 928 929 TAILQ_INIT(&wp->modes); 930 931 TAILQ_INIT (&wp->resize_queue); 932 933 wp->sx = sx; 934 wp->sy = sy; 935 936 wp->pipe_fd = -1; 937 938 colour_palette_init(&wp->palette); 939 colour_palette_from_option(&wp->palette, wp->options); 940 941 screen_init(&wp->base, sx, sy, hlimit); 942 wp->screen = &wp->base; 943 window_pane_default_cursor(wp); 944 945 screen_init(&wp->status_screen, 1, 1, 0); 946 947 if (gethostname(host, sizeof host) == 0) 948 screen_set_title(&wp->base, host); 949 950 return (wp); 951 } 952 953 static void 954 window_pane_destroy(struct window_pane *wp) 955 { 956 struct window_pane_resize *r; 957 struct window_pane_resize *r1; 958 959 window_pane_reset_mode_all(wp); 960 free(wp->searchstr); 961 962 if (wp->fd != -1) { 963 bufferevent_free(wp->event); 964 close(wp->fd); 965 } 966 if (wp->ictx != NULL) 967 input_free(wp->ictx); 968 969 screen_free(&wp->status_screen); 970 971 screen_free(&wp->base); 972 973 if (wp->pipe_fd != -1) { 974 bufferevent_free(wp->pipe_event); 975 close(wp->pipe_fd); 976 } 977 978 if (event_initialized(&wp->resize_timer)) 979 event_del(&wp->resize_timer); 980 TAILQ_FOREACH_SAFE(r, &wp->resize_queue, entry, r1) { 981 TAILQ_REMOVE(&wp->resize_queue, r, entry); 982 free(r); 983 } 984 985 RB_REMOVE(window_pane_tree, &all_window_panes, wp); 986 987 options_free(wp->options); 988 free((void *)wp->cwd); 989 free(wp->shell); 990 cmd_free_argv(wp->argc, wp->argv); 991 colour_palette_free(&wp->palette); 992 free(wp); 993 } 994 995 static void 996 window_pane_read_callback(__unused struct bufferevent *bufev, void *data) 997 { 998 struct window_pane *wp = data; 999 struct evbuffer *evb = wp->event->input; 1000 struct window_pane_offset *wpo = &wp->pipe_offset; 1001 size_t size = EVBUFFER_LENGTH(evb); 1002 char *new_data; 1003 size_t new_size; 1004 struct client *c; 1005 1006 if (wp->pipe_fd != -1) { 1007 new_data = window_pane_get_new_data(wp, wpo, &new_size); 1008 if (new_size > 0) { 1009 bufferevent_write(wp->pipe_event, new_data, new_size); 1010 window_pane_update_used_data(wp, wpo, new_size); 1011 } 1012 } 1013 1014 log_debug("%%%u has %zu bytes", wp->id, size); 1015 TAILQ_FOREACH(c, &clients, entry) { 1016 if (c->session != NULL && (c->flags & CLIENT_CONTROL)) 1017 control_write_output(c, wp); 1018 } 1019 input_parse_pane(wp); 1020 bufferevent_disable(wp->event, EV_READ); 1021 } 1022 1023 static void 1024 window_pane_error_callback(__unused struct bufferevent *bufev, 1025 __unused short what, void *data) 1026 { 1027 struct window_pane *wp = data; 1028 1029 log_debug("%%%u error", wp->id); 1030 wp->flags |= PANE_EXITED; 1031 1032 if (window_pane_destroy_ready(wp)) 1033 server_destroy_pane(wp, 1); 1034 } 1035 1036 void 1037 window_pane_set_event(struct window_pane *wp) 1038 { 1039 setblocking(wp->fd, 0); 1040 1041 wp->event = bufferevent_new(wp->fd, window_pane_read_callback, 1042 NULL, window_pane_error_callback, wp); 1043 if (wp->event == NULL) 1044 fatalx("out of memory"); 1045 wp->ictx = input_init(wp, wp->event, &wp->palette); 1046 1047 bufferevent_enable(wp->event, EV_READ|EV_WRITE); 1048 } 1049 1050 void 1051 window_pane_resize(struct window_pane *wp, u_int sx, u_int sy) 1052 { 1053 struct window_mode_entry *wme; 1054 struct window_pane_resize *r; 1055 1056 if (sx == wp->sx && sy == wp->sy) 1057 return; 1058 1059 r = xmalloc(sizeof *r); 1060 r->sx = sx; 1061 r->sy = sy; 1062 r->osx = wp->sx; 1063 r->osy = wp->sy; 1064 TAILQ_INSERT_TAIL (&wp->resize_queue, r, entry); 1065 1066 wp->sx = sx; 1067 wp->sy = sy; 1068 1069 log_debug("%s: %%%u resize %ux%u", __func__, wp->id, sx, sy); 1070 screen_resize(&wp->base, sx, sy, wp->base.saved_grid == NULL); 1071 1072 wme = TAILQ_FIRST(&wp->modes); 1073 if (wme != NULL && wme->mode->resize != NULL) 1074 wme->mode->resize(wme, sx, sy); 1075 } 1076 1077 int 1078 window_pane_set_mode(struct window_pane *wp, struct window_pane *swp, 1079 const struct window_mode *mode, struct cmd_find_state *fs, 1080 struct args *args) 1081 { 1082 struct window_mode_entry *wme; 1083 1084 if (!TAILQ_EMPTY(&wp->modes) && TAILQ_FIRST(&wp->modes)->mode == mode) 1085 return (1); 1086 1087 TAILQ_FOREACH(wme, &wp->modes, entry) { 1088 if (wme->mode == mode) 1089 break; 1090 } 1091 if (wme != NULL) { 1092 TAILQ_REMOVE(&wp->modes, wme, entry); 1093 TAILQ_INSERT_HEAD(&wp->modes, wme, entry); 1094 } else { 1095 wme = xcalloc(1, sizeof *wme); 1096 wme->wp = wp; 1097 wme->swp = swp; 1098 wme->mode = mode; 1099 wme->prefix = 1; 1100 TAILQ_INSERT_HEAD(&wp->modes, wme, entry); 1101 wme->screen = wme->mode->init(wme, fs, args); 1102 } 1103 1104 wp->screen = wme->screen; 1105 wp->flags |= (PANE_REDRAW|PANE_CHANGED); 1106 1107 server_redraw_window_borders(wp->window); 1108 server_status_window(wp->window); 1109 notify_pane("pane-mode-changed", wp); 1110 1111 return (0); 1112 } 1113 1114 void 1115 window_pane_reset_mode(struct window_pane *wp) 1116 { 1117 struct window_mode_entry *wme, *next; 1118 1119 if (TAILQ_EMPTY(&wp->modes)) 1120 return; 1121 1122 wme = TAILQ_FIRST(&wp->modes); 1123 TAILQ_REMOVE(&wp->modes, wme, entry); 1124 wme->mode->free(wme); 1125 free(wme); 1126 1127 next = TAILQ_FIRST(&wp->modes); 1128 if (next == NULL) { 1129 wp->flags &= ~PANE_UNSEENCHANGES; 1130 log_debug("%s: no next mode", __func__); 1131 wp->screen = &wp->base; 1132 } else { 1133 log_debug("%s: next mode is %s", __func__, next->mode->name); 1134 wp->screen = next->screen; 1135 if (next->mode->resize != NULL) 1136 next->mode->resize(next, wp->sx, wp->sy); 1137 } 1138 wp->flags |= (PANE_REDRAW|PANE_CHANGED); 1139 1140 server_redraw_window_borders(wp->window); 1141 server_status_window(wp->window); 1142 notify_pane("pane-mode-changed", wp); 1143 } 1144 1145 void 1146 window_pane_reset_mode_all(struct window_pane *wp) 1147 { 1148 while (!TAILQ_EMPTY(&wp->modes)) 1149 window_pane_reset_mode(wp); 1150 } 1151 1152 static void 1153 window_pane_copy_key(struct window_pane *wp, key_code key) 1154 { 1155 struct window_pane *loop; 1156 1157 TAILQ_FOREACH(loop, &wp->window->panes, entry) { 1158 if (loop != wp && 1159 TAILQ_EMPTY(&loop->modes) && 1160 loop->fd != -1 && 1161 (~loop->flags & PANE_INPUTOFF) && 1162 window_pane_visible(loop) && 1163 options_get_number(loop->options, "synchronize-panes")) 1164 input_key_pane(loop, key, NULL); 1165 } 1166 } 1167 1168 int 1169 window_pane_key(struct window_pane *wp, struct client *c, struct session *s, 1170 struct winlink *wl, key_code key, struct mouse_event *m) 1171 { 1172 struct window_mode_entry *wme; 1173 1174 if (KEYC_IS_MOUSE(key) && m == NULL) 1175 return (-1); 1176 1177 wme = TAILQ_FIRST(&wp->modes); 1178 if (wme != NULL) { 1179 if (wme->mode->key != NULL && c != NULL) { 1180 key &= ~KEYC_MASK_FLAGS; 1181 wme->mode->key(wme, c, s, wl, key, m); 1182 } 1183 return (0); 1184 } 1185 1186 if (wp->fd == -1 || wp->flags & PANE_INPUTOFF) 1187 return (0); 1188 1189 if (input_key_pane(wp, key, m) != 0) 1190 return (-1); 1191 1192 if (KEYC_IS_MOUSE(key)) 1193 return (0); 1194 if (options_get_number(wp->options, "synchronize-panes")) 1195 window_pane_copy_key(wp, key); 1196 return (0); 1197 } 1198 1199 int 1200 window_pane_visible(struct window_pane *wp) 1201 { 1202 if (~wp->window->flags & WINDOW_ZOOMED) 1203 return (1); 1204 return (wp == wp->window->active); 1205 } 1206 1207 u_int 1208 window_pane_search(struct window_pane *wp, const char *term, int regex, 1209 int ignore) 1210 { 1211 struct screen *s = &wp->base; 1212 regex_t r; 1213 char *new = NULL, *line; 1214 u_int i; 1215 int flags = 0, found; 1216 size_t n; 1217 1218 if (!regex) { 1219 if (ignore) 1220 flags |= FNM_CASEFOLD; 1221 xasprintf(&new, "*%s*", term); 1222 } else { 1223 if (ignore) 1224 flags |= REG_ICASE; 1225 if (regcomp(&r, term, flags|REG_EXTENDED) != 0) 1226 return (0); 1227 } 1228 1229 for (i = 0; i < screen_size_y(s); i++) { 1230 line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s)); 1231 for (n = strlen(line); n > 0; n--) { 1232 if (!isspace((u_char)line[n - 1])) 1233 break; 1234 line[n - 1] = '\0'; 1235 } 1236 log_debug("%s: %s", __func__, line); 1237 if (!regex) 1238 found = (fnmatch(new, line, flags) == 0); 1239 else 1240 found = (regexec(&r, line, 0, NULL, 0) == 0); 1241 free(line); 1242 if (found) 1243 break; 1244 } 1245 if (!regex) 1246 free(new); 1247 else 1248 regfree(&r); 1249 1250 if (i == screen_size_y(s)) 1251 return (0); 1252 return (i + 1); 1253 } 1254 1255 /* Get MRU pane from a list. */ 1256 static struct window_pane * 1257 window_pane_choose_best(struct window_pane **list, u_int size) 1258 { 1259 struct window_pane *next, *best; 1260 u_int i; 1261 1262 if (size == 0) 1263 return (NULL); 1264 1265 best = list[0]; 1266 for (i = 1; i < size; i++) { 1267 next = list[i]; 1268 if (next->active_point > best->active_point) 1269 best = next; 1270 } 1271 return (best); 1272 } 1273 1274 /* 1275 * Find the pane directly above another. We build a list of those adjacent to 1276 * top edge and then choose the best. 1277 */ 1278 struct window_pane * 1279 window_pane_find_up(struct window_pane *wp) 1280 { 1281 struct window *w; 1282 struct window_pane *next, *best, **list; 1283 u_int edge, left, right, end, size; 1284 int status, found; 1285 1286 if (wp == NULL) 1287 return (NULL); 1288 w = wp->window; 1289 status = options_get_number(w->options, "pane-border-status"); 1290 1291 list = NULL; 1292 size = 0; 1293 1294 edge = wp->yoff; 1295 if (status == PANE_STATUS_TOP) { 1296 if (edge == 1) 1297 edge = w->sy + 1; 1298 } else if (status == PANE_STATUS_BOTTOM) { 1299 if (edge == 0) 1300 edge = w->sy; 1301 } else { 1302 if (edge == 0) 1303 edge = w->sy + 1; 1304 } 1305 1306 left = wp->xoff; 1307 right = wp->xoff + wp->sx; 1308 1309 TAILQ_FOREACH(next, &w->panes, entry) { 1310 if (next == wp) 1311 continue; 1312 if (next->yoff + next->sy + 1 != edge) 1313 continue; 1314 end = next->xoff + next->sx - 1; 1315 1316 found = 0; 1317 if (next->xoff < left && end > right) 1318 found = 1; 1319 else if (next->xoff >= left && next->xoff <= right) 1320 found = 1; 1321 else if (end >= left && end <= right) 1322 found = 1; 1323 if (!found) 1324 continue; 1325 list = xreallocarray(list, size + 1, sizeof *list); 1326 list[size++] = next; 1327 } 1328 1329 best = window_pane_choose_best(list, size); 1330 free(list); 1331 return (best); 1332 } 1333 1334 /* Find the pane directly below another. */ 1335 struct window_pane * 1336 window_pane_find_down(struct window_pane *wp) 1337 { 1338 struct window *w; 1339 struct window_pane *next, *best, **list; 1340 u_int edge, left, right, end, size; 1341 int status, found; 1342 1343 if (wp == NULL) 1344 return (NULL); 1345 w = wp->window; 1346 status = options_get_number(w->options, "pane-border-status"); 1347 1348 list = NULL; 1349 size = 0; 1350 1351 edge = wp->yoff + wp->sy + 1; 1352 if (status == PANE_STATUS_TOP) { 1353 if (edge >= w->sy) 1354 edge = 1; 1355 } else if (status == PANE_STATUS_BOTTOM) { 1356 if (edge >= w->sy - 1) 1357 edge = 0; 1358 } else { 1359 if (edge >= w->sy) 1360 edge = 0; 1361 } 1362 1363 left = wp->xoff; 1364 right = wp->xoff + wp->sx; 1365 1366 TAILQ_FOREACH(next, &w->panes, entry) { 1367 if (next == wp) 1368 continue; 1369 if (next->yoff != edge) 1370 continue; 1371 end = next->xoff + next->sx - 1; 1372 1373 found = 0; 1374 if (next->xoff < left && end > right) 1375 found = 1; 1376 else if (next->xoff >= left && next->xoff <= right) 1377 found = 1; 1378 else if (end >= left && end <= right) 1379 found = 1; 1380 if (!found) 1381 continue; 1382 list = xreallocarray(list, size + 1, sizeof *list); 1383 list[size++] = next; 1384 } 1385 1386 best = window_pane_choose_best(list, size); 1387 free(list); 1388 return (best); 1389 } 1390 1391 /* Find the pane directly to the left of another. */ 1392 struct window_pane * 1393 window_pane_find_left(struct window_pane *wp) 1394 { 1395 struct window *w; 1396 struct window_pane *next, *best, **list; 1397 u_int edge, top, bottom, end, size; 1398 int found; 1399 1400 if (wp == NULL) 1401 return (NULL); 1402 w = wp->window; 1403 1404 list = NULL; 1405 size = 0; 1406 1407 edge = wp->xoff; 1408 if (edge == 0) 1409 edge = w->sx + 1; 1410 1411 top = wp->yoff; 1412 bottom = wp->yoff + wp->sy; 1413 1414 TAILQ_FOREACH(next, &w->panes, entry) { 1415 if (next == wp) 1416 continue; 1417 if (next->xoff + next->sx + 1 != edge) 1418 continue; 1419 end = next->yoff + next->sy - 1; 1420 1421 found = 0; 1422 if (next->yoff < top && end > bottom) 1423 found = 1; 1424 else if (next->yoff >= top && next->yoff <= bottom) 1425 found = 1; 1426 else if (end >= top && end <= bottom) 1427 found = 1; 1428 if (!found) 1429 continue; 1430 list = xreallocarray(list, size + 1, sizeof *list); 1431 list[size++] = next; 1432 } 1433 1434 best = window_pane_choose_best(list, size); 1435 free(list); 1436 return (best); 1437 } 1438 1439 /* Find the pane directly to the right of another. */ 1440 struct window_pane * 1441 window_pane_find_right(struct window_pane *wp) 1442 { 1443 struct window *w; 1444 struct window_pane *next, *best, **list; 1445 u_int edge, top, bottom, end, size; 1446 int found; 1447 1448 if (wp == NULL) 1449 return (NULL); 1450 w = wp->window; 1451 1452 list = NULL; 1453 size = 0; 1454 1455 edge = wp->xoff + wp->sx + 1; 1456 if (edge >= w->sx) 1457 edge = 0; 1458 1459 top = wp->yoff; 1460 bottom = wp->yoff + wp->sy; 1461 1462 TAILQ_FOREACH(next, &w->panes, entry) { 1463 if (next == wp) 1464 continue; 1465 if (next->xoff != edge) 1466 continue; 1467 end = next->yoff + next->sy - 1; 1468 1469 found = 0; 1470 if (next->yoff < top && end > bottom) 1471 found = 1; 1472 else if (next->yoff >= top && next->yoff <= bottom) 1473 found = 1; 1474 else if (end >= top && end <= bottom) 1475 found = 1; 1476 if (!found) 1477 continue; 1478 list = xreallocarray(list, size + 1, sizeof *list); 1479 list[size++] = next; 1480 } 1481 1482 best = window_pane_choose_best(list, size); 1483 free(list); 1484 return (best); 1485 } 1486 1487 void 1488 window_pane_stack_push(struct window_panes *stack, struct window_pane *wp) 1489 { 1490 if (wp != NULL) { 1491 window_pane_stack_remove(stack, wp); 1492 TAILQ_INSERT_HEAD(stack, wp, sentry); 1493 wp->flags |= PANE_VISITED; 1494 } 1495 } 1496 1497 void 1498 window_pane_stack_remove(struct window_panes *stack, struct window_pane *wp) 1499 { 1500 if (wp != NULL && (wp->flags & PANE_VISITED)) { 1501 TAILQ_REMOVE(stack, wp, sentry); 1502 wp->flags &= ~PANE_VISITED; 1503 } 1504 } 1505 1506 /* Clear alert flags for a winlink */ 1507 void 1508 winlink_clear_flags(struct winlink *wl) 1509 { 1510 struct winlink *loop; 1511 1512 wl->window->flags &= ~WINDOW_ALERTFLAGS; 1513 TAILQ_FOREACH(loop, &wl->window->winlinks, wentry) { 1514 if ((loop->flags & WINLINK_ALERTFLAGS) != 0) { 1515 loop->flags &= ~WINLINK_ALERTFLAGS; 1516 server_status_session(loop->session); 1517 } 1518 } 1519 } 1520 1521 /* Shuffle window indexes up. */ 1522 int 1523 winlink_shuffle_up(struct session *s, struct winlink *wl, int before) 1524 { 1525 int idx, last; 1526 1527 if (wl == NULL) 1528 return (-1); 1529 if (before) 1530 idx = wl->idx; 1531 else 1532 idx = wl->idx + 1; 1533 1534 /* Find the next free index. */ 1535 for (last = idx; last < INT_MAX; last++) { 1536 if (winlink_find_by_index(&s->windows, last) == NULL) 1537 break; 1538 } 1539 if (last == INT_MAX) 1540 return (-1); 1541 1542 /* Move everything from last - 1 to idx up a bit. */ 1543 for (; last > idx; last--) { 1544 wl = winlink_find_by_index(&s->windows, last - 1); 1545 RB_REMOVE(winlinks, &s->windows, wl); 1546 wl->idx++; 1547 RB_INSERT(winlinks, &s->windows, wl); 1548 } 1549 1550 return (idx); 1551 } 1552 1553 static void 1554 window_pane_input_callback(struct client *c, __unused const char *path, 1555 int error, int closed, struct evbuffer *buffer, void *data) 1556 { 1557 struct window_pane_input_data *cdata = data; 1558 struct window_pane *wp; 1559 u_char *buf = EVBUFFER_DATA(buffer); 1560 size_t len = EVBUFFER_LENGTH(buffer); 1561 1562 wp = window_pane_find_by_id(cdata->wp); 1563 if (cdata->file != NULL && (wp == NULL || c->flags & CLIENT_DEAD)) { 1564 if (wp == NULL) { 1565 c->retval = 1; 1566 c->flags |= CLIENT_EXIT; 1567 } 1568 file_cancel(cdata->file); 1569 } else if (cdata->file == NULL || closed || error != 0) { 1570 cmdq_continue(cdata->item); 1571 server_client_unref(c); 1572 free(cdata); 1573 } else 1574 input_parse_buffer(wp, buf, len); 1575 evbuffer_drain(buffer, len); 1576 } 1577 1578 int 1579 window_pane_start_input(struct window_pane *wp, struct cmdq_item *item, 1580 char **cause) 1581 { 1582 struct client *c = cmdq_get_client(item); 1583 struct window_pane_input_data *cdata; 1584 1585 if (~wp->flags & PANE_EMPTY) { 1586 *cause = xstrdup("pane is not empty"); 1587 return (-1); 1588 } 1589 if (c->flags & (CLIENT_DEAD|CLIENT_EXITED)) 1590 return (1); 1591 if (c->session != NULL) 1592 return (1); 1593 1594 cdata = xmalloc(sizeof *cdata); 1595 cdata->item = item; 1596 cdata->wp = wp->id; 1597 cdata->file = file_read(c, "-", window_pane_input_callback, cdata); 1598 c->references++; 1599 1600 return (0); 1601 } 1602 1603 void * 1604 window_pane_get_new_data(struct window_pane *wp, 1605 struct window_pane_offset *wpo, size_t *size) 1606 { 1607 size_t used = wpo->used - wp->base_offset; 1608 1609 *size = EVBUFFER_LENGTH(wp->event->input) - used; 1610 return (EVBUFFER_DATA(wp->event->input) + used); 1611 } 1612 1613 void 1614 window_pane_update_used_data(struct window_pane *wp, 1615 struct window_pane_offset *wpo, size_t size) 1616 { 1617 size_t used = wpo->used - wp->base_offset; 1618 1619 if (size > EVBUFFER_LENGTH(wp->event->input) - used) 1620 size = EVBUFFER_LENGTH(wp->event->input) - used; 1621 wpo->used += size; 1622 } 1623 1624 void 1625 window_set_fill_character(struct window *w) 1626 { 1627 const char *value; 1628 struct utf8_data *ud; 1629 1630 free(w->fill_character); 1631 w->fill_character = NULL; 1632 1633 value = options_get_string(w->options, "fill-character"); 1634 if (*value != '\0' && utf8_isvalid(value)) { 1635 ud = utf8_fromcstr(value); 1636 if (ud != NULL && ud[0].width == 1) 1637 w->fill_character = ud; 1638 } 1639 } 1640 1641 void 1642 window_pane_default_cursor(struct window_pane *wp) 1643 { 1644 struct screen *s = wp->screen; 1645 int c; 1646 1647 c = options_get_number(wp->options, "cursor-colour"); 1648 s->default_ccolour = c; 1649 1650 c = options_get_number(wp->options, "cursor-style"); 1651 s->default_mode = 0; 1652 screen_set_cursor_style(c, &s->default_cstyle, &s->default_mode); 1653 } 1654