1 /* $OpenBSD: window.c,v 1.286 2023/07/10 09:24:53 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 RB_REMOVE(windows, &windows, w); 344 345 if (w->layout_root != NULL) 346 layout_free_cell(w->layout_root); 347 if (w->saved_layout_root != NULL) 348 layout_free_cell(w->saved_layout_root); 349 free(w->old_layout); 350 351 window_destroy_panes(w); 352 353 if (event_initialized(&w->name_event)) 354 evtimer_del(&w->name_event); 355 356 if (event_initialized(&w->alerts_timer)) 357 evtimer_del(&w->alerts_timer); 358 if (event_initialized(&w->offset_timer)) 359 event_del(&w->offset_timer); 360 361 options_free(w->options); 362 free(w->fill_character); 363 364 free(w->name); 365 free(w); 366 } 367 368 int 369 window_pane_destroy_ready(struct window_pane *wp) 370 { 371 int n; 372 373 if (wp->pipe_fd != -1) { 374 if (EVBUFFER_LENGTH(wp->pipe_event->output) != 0) 375 return (0); 376 if (ioctl(wp->fd, FIONREAD, &n) != -1 && n > 0) 377 return (0); 378 } 379 380 if (~wp->flags & PANE_EXITED) 381 return (0); 382 return (1); 383 } 384 385 void 386 window_add_ref(struct window *w, const char *from) 387 { 388 w->references++; 389 log_debug("%s: @%u %s, now %d", __func__, w->id, from, w->references); 390 } 391 392 void 393 window_remove_ref(struct window *w, const char *from) 394 { 395 w->references--; 396 log_debug("%s: @%u %s, now %d", __func__, w->id, from, w->references); 397 398 if (w->references == 0) 399 window_destroy(w); 400 } 401 402 void 403 window_set_name(struct window *w, const char *new_name) 404 { 405 free(w->name); 406 utf8_stravis(&w->name, new_name, VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL); 407 notify_window("window-renamed", w); 408 } 409 410 void 411 window_resize(struct window *w, u_int sx, u_int sy, int xpixel, int ypixel) 412 { 413 if (xpixel == 0) 414 xpixel = DEFAULT_XPIXEL; 415 if (ypixel == 0) 416 ypixel = DEFAULT_YPIXEL; 417 418 log_debug("%s: @%u resize %ux%u (%ux%u)", __func__, w->id, sx, sy, 419 xpixel == -1 ? w->xpixel : (u_int)xpixel, 420 ypixel == -1 ? w->ypixel : (u_int)ypixel); 421 w->sx = sx; 422 w->sy = sy; 423 if (xpixel != -1) 424 w->xpixel = xpixel; 425 if (ypixel != -1) 426 w->ypixel = ypixel; 427 } 428 429 void 430 window_pane_send_resize(struct window_pane *wp, u_int sx, u_int sy) 431 { 432 struct window *w = wp->window; 433 struct winsize ws; 434 435 if (wp->fd == -1) 436 return; 437 438 log_debug("%s: %%%u resize to %u,%u", __func__, wp->id, sx, sy); 439 440 memset(&ws, 0, sizeof ws); 441 ws.ws_col = sx; 442 ws.ws_row = sy; 443 ws.ws_xpixel = w->xpixel * ws.ws_col; 444 ws.ws_ypixel = w->ypixel * ws.ws_row; 445 if (ioctl(wp->fd, TIOCSWINSZ, &ws) == -1) 446 fatal("ioctl failed"); 447 } 448 449 int 450 window_has_pane(struct window *w, struct window_pane *wp) 451 { 452 struct window_pane *wp1; 453 454 TAILQ_FOREACH(wp1, &w->panes, entry) { 455 if (wp1 == wp) 456 return (1); 457 } 458 return (0); 459 } 460 461 void 462 window_update_focus(struct window *w) 463 { 464 if (w != NULL) { 465 log_debug("%s: @%u", __func__, w->id); 466 window_pane_update_focus(w->active); 467 } 468 } 469 470 void 471 window_pane_update_focus(struct window_pane *wp) 472 { 473 struct client *c; 474 int focused = 0; 475 476 if (wp != NULL) { 477 if (wp != wp->window->active) 478 focused = 0; 479 else { 480 TAILQ_FOREACH(c, &clients, entry) { 481 if (c->session != NULL && 482 c->session->attached != 0 && 483 (c->flags & CLIENT_FOCUSED) && 484 c->session->curw->window == wp->window) { 485 focused = 1; 486 break; 487 } 488 } 489 } 490 if (!focused && (wp->flags & PANE_FOCUSED)) { 491 log_debug("%s: %%%u focus out", __func__, wp->id); 492 if (wp->base.mode & MODE_FOCUSON) 493 bufferevent_write(wp->event, "\033[O", 3); 494 notify_pane("pane-focus-out", wp); 495 wp->flags &= ~PANE_FOCUSED; 496 } else if (focused && (~wp->flags & PANE_FOCUSED)) { 497 log_debug("%s: %%%u focus in", __func__, wp->id); 498 if (wp->base.mode & MODE_FOCUSON) 499 bufferevent_write(wp->event, "\033[I", 3); 500 notify_pane("pane-focus-in", wp); 501 wp->flags |= PANE_FOCUSED; 502 } else 503 log_debug("%s: %%%u focus unchanged", __func__, wp->id); 504 } 505 } 506 507 int 508 window_set_active_pane(struct window *w, struct window_pane *wp, int notify) 509 { 510 struct window_pane *lastwp; 511 512 log_debug("%s: pane %%%u", __func__, wp->id); 513 514 if (wp == w->active) 515 return (0); 516 lastwp = w->active; 517 518 window_pane_stack_remove(&w->last_panes, wp); 519 window_pane_stack_push(&w->last_panes, lastwp); 520 521 w->active = wp; 522 w->active->active_point = next_active_point++; 523 w->active->flags |= PANE_CHANGED; 524 525 if (options_get_number(global_options, "focus-events")) { 526 window_pane_update_focus(lastwp); 527 window_pane_update_focus(w->active); 528 } 529 530 tty_update_window_offset(w); 531 532 if (notify) 533 notify_window("window-pane-changed", w); 534 return (1); 535 } 536 537 static int 538 window_pane_get_palette(struct window_pane *wp, int c) 539 { 540 if (wp == NULL) 541 return (-1); 542 return (colour_palette_get(&wp->palette, c)); 543 } 544 545 void 546 window_redraw_active_switch(struct window *w, struct window_pane *wp) 547 { 548 struct grid_cell *gc1, *gc2; 549 int c1, c2; 550 551 if (wp == w->active) 552 return; 553 554 for (;;) { 555 /* 556 * If the active and inactive styles or palettes are different, 557 * need to redraw the panes. 558 */ 559 gc1 = &wp->cached_gc; 560 gc2 = &wp->cached_active_gc; 561 if (!grid_cells_look_equal(gc1, gc2)) 562 wp->flags |= PANE_REDRAW; 563 else { 564 c1 = window_pane_get_palette(wp, gc1->fg); 565 c2 = window_pane_get_palette(wp, gc2->fg); 566 if (c1 != c2) 567 wp->flags |= PANE_REDRAW; 568 else { 569 c1 = window_pane_get_palette(wp, gc1->bg); 570 c2 = window_pane_get_palette(wp, gc2->bg); 571 if (c1 != c2) 572 wp->flags |= PANE_REDRAW; 573 } 574 } 575 if (wp == w->active) 576 break; 577 wp = w->active; 578 } 579 } 580 581 struct window_pane * 582 window_get_active_at(struct window *w, u_int x, u_int y) 583 { 584 struct window_pane *wp; 585 586 TAILQ_FOREACH(wp, &w->panes, entry) { 587 if (!window_pane_visible(wp)) 588 continue; 589 if (x < wp->xoff || x > wp->xoff + wp->sx) 590 continue; 591 if (y < wp->yoff || y > wp->yoff + wp->sy) 592 continue; 593 return (wp); 594 } 595 return (NULL); 596 } 597 598 struct window_pane * 599 window_find_string(struct window *w, const char *s) 600 { 601 u_int x, y, top = 0, bottom = w->sy - 1; 602 int status; 603 604 x = w->sx / 2; 605 y = w->sy / 2; 606 607 status = options_get_number(w->options, "pane-border-status"); 608 if (status == PANE_STATUS_TOP) 609 top++; 610 else if (status == PANE_STATUS_BOTTOM) 611 bottom--; 612 613 if (strcasecmp(s, "top") == 0) 614 y = top; 615 else if (strcasecmp(s, "bottom") == 0) 616 y = bottom; 617 else if (strcasecmp(s, "left") == 0) 618 x = 0; 619 else if (strcasecmp(s, "right") == 0) 620 x = w->sx - 1; 621 else if (strcasecmp(s, "top-left") == 0) { 622 x = 0; 623 y = top; 624 } else if (strcasecmp(s, "top-right") == 0) { 625 x = w->sx - 1; 626 y = top; 627 } else if (strcasecmp(s, "bottom-left") == 0) { 628 x = 0; 629 y = bottom; 630 } else if (strcasecmp(s, "bottom-right") == 0) { 631 x = w->sx - 1; 632 y = bottom; 633 } else 634 return (NULL); 635 636 return (window_get_active_at(w, x, y)); 637 } 638 639 int 640 window_zoom(struct window_pane *wp) 641 { 642 struct window *w = wp->window; 643 struct window_pane *wp1; 644 645 if (w->flags & WINDOW_ZOOMED) 646 return (-1); 647 648 if (window_count_panes(w) == 1) 649 return (-1); 650 651 if (w->active != wp) 652 window_set_active_pane(w, wp, 1); 653 654 TAILQ_FOREACH(wp1, &w->panes, entry) { 655 wp1->saved_layout_cell = wp1->layout_cell; 656 wp1->layout_cell = NULL; 657 } 658 659 w->saved_layout_root = w->layout_root; 660 layout_init(w, wp); 661 w->flags |= WINDOW_ZOOMED; 662 notify_window("window-layout-changed", w); 663 664 return (0); 665 } 666 667 int 668 window_unzoom(struct window *w) 669 { 670 struct window_pane *wp; 671 672 if (!(w->flags & WINDOW_ZOOMED)) 673 return (-1); 674 675 w->flags &= ~WINDOW_ZOOMED; 676 layout_free(w); 677 w->layout_root = w->saved_layout_root; 678 w->saved_layout_root = NULL; 679 680 TAILQ_FOREACH(wp, &w->panes, entry) { 681 wp->layout_cell = wp->saved_layout_cell; 682 wp->saved_layout_cell = NULL; 683 } 684 layout_fix_panes(w, NULL); 685 notify_window("window-layout-changed", w); 686 687 return (0); 688 } 689 690 int 691 window_push_zoom(struct window *w, int always, int flag) 692 { 693 log_debug("%s: @%u %d", __func__, w->id, 694 flag && (w->flags & WINDOW_ZOOMED)); 695 if (flag && (always || (w->flags & WINDOW_ZOOMED))) 696 w->flags |= WINDOW_WASZOOMED; 697 else 698 w->flags &= ~WINDOW_WASZOOMED; 699 return (window_unzoom(w) == 0); 700 } 701 702 int 703 window_pop_zoom(struct window *w) 704 { 705 log_debug("%s: @%u %d", __func__, w->id, 706 !!(w->flags & WINDOW_WASZOOMED)); 707 if (w->flags & WINDOW_WASZOOMED) 708 return (window_zoom(w->active) == 0); 709 return (0); 710 } 711 712 struct window_pane * 713 window_add_pane(struct window *w, struct window_pane *other, u_int hlimit, 714 int flags) 715 { 716 struct window_pane *wp; 717 718 if (other == NULL) 719 other = w->active; 720 721 wp = window_pane_create(w, w->sx, w->sy, hlimit); 722 if (TAILQ_EMPTY(&w->panes)) { 723 log_debug("%s: @%u at start", __func__, w->id); 724 TAILQ_INSERT_HEAD(&w->panes, wp, entry); 725 } else if (flags & SPAWN_BEFORE) { 726 log_debug("%s: @%u before %%%u", __func__, w->id, wp->id); 727 if (flags & SPAWN_FULLSIZE) 728 TAILQ_INSERT_HEAD(&w->panes, wp, entry); 729 else 730 TAILQ_INSERT_BEFORE(other, wp, entry); 731 } else { 732 log_debug("%s: @%u after %%%u", __func__, w->id, wp->id); 733 if (flags & SPAWN_FULLSIZE) 734 TAILQ_INSERT_TAIL(&w->panes, wp, entry); 735 else 736 TAILQ_INSERT_AFTER(&w->panes, other, wp, entry); 737 } 738 return (wp); 739 } 740 741 void 742 window_lost_pane(struct window *w, struct window_pane *wp) 743 { 744 log_debug("%s: @%u pane %%%u", __func__, w->id, wp->id); 745 746 if (wp == marked_pane.wp) 747 server_clear_marked(); 748 749 window_pane_stack_remove(&w->last_panes, wp); 750 if (wp == w->active) { 751 w->active = TAILQ_FIRST(&w->last_panes); 752 if (w->active == NULL) { 753 w->active = TAILQ_PREV(wp, window_panes, entry); 754 if (w->active == NULL) 755 w->active = TAILQ_NEXT(wp, entry); 756 } 757 if (w->active != NULL) { 758 window_pane_stack_remove(&w->last_panes, w->active); 759 w->active->flags |= PANE_CHANGED; 760 notify_window("window-pane-changed", w); 761 window_update_focus(w); 762 } 763 } 764 } 765 766 void 767 window_remove_pane(struct window *w, struct window_pane *wp) 768 { 769 window_lost_pane(w, wp); 770 771 TAILQ_REMOVE(&w->panes, wp, entry); 772 window_pane_destroy(wp); 773 } 774 775 struct window_pane * 776 window_pane_at_index(struct window *w, u_int idx) 777 { 778 struct window_pane *wp; 779 u_int n; 780 781 n = options_get_number(w->options, "pane-base-index"); 782 TAILQ_FOREACH(wp, &w->panes, entry) { 783 if (n == idx) 784 return (wp); 785 n++; 786 } 787 return (NULL); 788 } 789 790 struct window_pane * 791 window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n) 792 { 793 for (; n > 0; n--) { 794 if ((wp = TAILQ_NEXT(wp, entry)) == NULL) 795 wp = TAILQ_FIRST(&w->panes); 796 } 797 798 return (wp); 799 } 800 801 struct window_pane * 802 window_pane_previous_by_number(struct window *w, struct window_pane *wp, 803 u_int n) 804 { 805 for (; n > 0; n--) { 806 if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL) 807 wp = TAILQ_LAST(&w->panes, window_panes); 808 } 809 810 return (wp); 811 } 812 813 int 814 window_pane_index(struct window_pane *wp, u_int *i) 815 { 816 struct window_pane *wq; 817 struct window *w = wp->window; 818 819 *i = options_get_number(w->options, "pane-base-index"); 820 TAILQ_FOREACH(wq, &w->panes, entry) { 821 if (wp == wq) { 822 return (0); 823 } 824 (*i)++; 825 } 826 827 return (-1); 828 } 829 830 u_int 831 window_count_panes(struct window *w) 832 { 833 struct window_pane *wp; 834 u_int n; 835 836 n = 0; 837 TAILQ_FOREACH(wp, &w->panes, entry) 838 n++; 839 return (n); 840 } 841 842 void 843 window_destroy_panes(struct window *w) 844 { 845 struct window_pane *wp; 846 847 while (!TAILQ_EMPTY(&w->last_panes)) { 848 wp = TAILQ_FIRST(&w->last_panes); 849 window_pane_stack_remove(&w->last_panes, wp); 850 } 851 852 while (!TAILQ_EMPTY(&w->panes)) { 853 wp = TAILQ_FIRST(&w->panes); 854 TAILQ_REMOVE(&w->panes, wp, entry); 855 window_pane_destroy(wp); 856 } 857 } 858 859 const char * 860 window_printable_flags(struct winlink *wl, int escape) 861 { 862 struct session *s = wl->session; 863 static char flags[32]; 864 int pos; 865 866 pos = 0; 867 if (wl->flags & WINLINK_ACTIVITY) { 868 flags[pos++] = '#'; 869 if (escape) 870 flags[pos++] = '#'; 871 } 872 if (wl->flags & WINLINK_BELL) 873 flags[pos++] = '!'; 874 if (wl->flags & WINLINK_SILENCE) 875 flags[pos++] = '~'; 876 if (wl == s->curw) 877 flags[pos++] = '*'; 878 if (wl == TAILQ_FIRST(&s->lastw)) 879 flags[pos++] = '-'; 880 if (server_check_marked() && wl == marked_pane.wl) 881 flags[pos++] = 'M'; 882 if (wl->window->flags & WINDOW_ZOOMED) 883 flags[pos++] = 'Z'; 884 flags[pos] = '\0'; 885 return (flags); 886 } 887 888 struct window_pane * 889 window_pane_find_by_id_str(const char *s) 890 { 891 const char *errstr; 892 u_int id; 893 894 if (*s != '%') 895 return (NULL); 896 897 id = strtonum(s + 1, 0, UINT_MAX, &errstr); 898 if (errstr != NULL) 899 return (NULL); 900 return (window_pane_find_by_id(id)); 901 } 902 903 struct window_pane * 904 window_pane_find_by_id(u_int id) 905 { 906 struct window_pane wp; 907 908 wp.id = id; 909 return (RB_FIND(window_pane_tree, &all_window_panes, &wp)); 910 } 911 912 static struct window_pane * 913 window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit) 914 { 915 struct window_pane *wp; 916 char host[HOST_NAME_MAX + 1]; 917 918 wp = xcalloc(1, sizeof *wp); 919 wp->window = w; 920 wp->options = options_create(w->options); 921 wp->flags = PANE_STYLECHANGED; 922 923 wp->id = next_window_pane_id++; 924 RB_INSERT(window_pane_tree, &all_window_panes, wp); 925 926 wp->fd = -1; 927 928 TAILQ_INIT(&wp->modes); 929 930 TAILQ_INIT (&wp->resize_queue); 931 932 wp->sx = sx; 933 wp->sy = sy; 934 935 wp->pipe_fd = -1; 936 937 colour_palette_init(&wp->palette); 938 colour_palette_from_option(&wp->palette, wp->options); 939 940 screen_init(&wp->base, sx, sy, hlimit); 941 wp->screen = &wp->base; 942 window_pane_default_cursor(wp); 943 944 screen_init(&wp->status_screen, 1, 1, 0); 945 946 if (gethostname(host, sizeof host) == 0) 947 screen_set_title(&wp->base, host); 948 949 return (wp); 950 } 951 952 static void 953 window_pane_destroy(struct window_pane *wp) 954 { 955 struct window_pane_resize *r; 956 struct window_pane_resize *r1; 957 958 window_pane_reset_mode_all(wp); 959 free(wp->searchstr); 960 961 if (wp->fd != -1) { 962 bufferevent_free(wp->event); 963 close(wp->fd); 964 } 965 if (wp->ictx != NULL) 966 input_free(wp->ictx); 967 968 screen_free(&wp->status_screen); 969 970 screen_free(&wp->base); 971 972 if (wp->pipe_fd != -1) { 973 bufferevent_free(wp->pipe_event); 974 close(wp->pipe_fd); 975 } 976 977 if (event_initialized(&wp->resize_timer)) 978 event_del(&wp->resize_timer); 979 TAILQ_FOREACH_SAFE(r, &wp->resize_queue, entry, r1) { 980 TAILQ_REMOVE(&wp->resize_queue, r, entry); 981 free(r); 982 } 983 984 RB_REMOVE(window_pane_tree, &all_window_panes, wp); 985 986 options_free(wp->options); 987 free((void *)wp->cwd); 988 free(wp->shell); 989 cmd_free_argv(wp->argc, wp->argv); 990 colour_palette_free(&wp->palette); 991 free(wp); 992 } 993 994 static void 995 window_pane_read_callback(__unused struct bufferevent *bufev, void *data) 996 { 997 struct window_pane *wp = data; 998 struct evbuffer *evb = wp->event->input; 999 struct window_pane_offset *wpo = &wp->pipe_offset; 1000 size_t size = EVBUFFER_LENGTH(evb); 1001 char *new_data; 1002 size_t new_size; 1003 struct client *c; 1004 1005 if (wp->pipe_fd != -1) { 1006 new_data = window_pane_get_new_data(wp, wpo, &new_size); 1007 if (new_size > 0) { 1008 bufferevent_write(wp->pipe_event, new_data, new_size); 1009 window_pane_update_used_data(wp, wpo, new_size); 1010 } 1011 } 1012 1013 log_debug("%%%u has %zu bytes", wp->id, size); 1014 TAILQ_FOREACH(c, &clients, entry) { 1015 if (c->session != NULL && (c->flags & CLIENT_CONTROL)) 1016 control_write_output(c, wp); 1017 } 1018 input_parse_pane(wp); 1019 bufferevent_disable(wp->event, EV_READ); 1020 } 1021 1022 static void 1023 window_pane_error_callback(__unused struct bufferevent *bufev, 1024 __unused short what, void *data) 1025 { 1026 struct window_pane *wp = data; 1027 1028 log_debug("%%%u error", wp->id); 1029 wp->flags |= PANE_EXITED; 1030 1031 if (window_pane_destroy_ready(wp)) 1032 server_destroy_pane(wp, 1); 1033 } 1034 1035 void 1036 window_pane_set_event(struct window_pane *wp) 1037 { 1038 setblocking(wp->fd, 0); 1039 1040 wp->event = bufferevent_new(wp->fd, window_pane_read_callback, 1041 NULL, window_pane_error_callback, wp); 1042 if (wp->event == NULL) 1043 fatalx("out of memory"); 1044 wp->ictx = input_init(wp, wp->event, &wp->palette); 1045 1046 bufferevent_enable(wp->event, EV_READ|EV_WRITE); 1047 } 1048 1049 void 1050 window_pane_resize(struct window_pane *wp, u_int sx, u_int sy) 1051 { 1052 struct window_mode_entry *wme; 1053 struct window_pane_resize *r; 1054 1055 if (sx == wp->sx && sy == wp->sy) 1056 return; 1057 1058 r = xmalloc(sizeof *r); 1059 r->sx = sx; 1060 r->sy = sy; 1061 r->osx = wp->sx; 1062 r->osy = wp->sy; 1063 TAILQ_INSERT_TAIL (&wp->resize_queue, r, entry); 1064 1065 wp->sx = sx; 1066 wp->sy = sy; 1067 1068 log_debug("%s: %%%u resize %ux%u", __func__, wp->id, sx, sy); 1069 screen_resize(&wp->base, sx, sy, wp->base.saved_grid == NULL); 1070 1071 wme = TAILQ_FIRST(&wp->modes); 1072 if (wme != NULL && wme->mode->resize != NULL) 1073 wme->mode->resize(wme, sx, sy); 1074 } 1075 1076 int 1077 window_pane_set_mode(struct window_pane *wp, struct window_pane *swp, 1078 const struct window_mode *mode, struct cmd_find_state *fs, 1079 struct args *args) 1080 { 1081 struct window_mode_entry *wme; 1082 1083 if (!TAILQ_EMPTY(&wp->modes) && TAILQ_FIRST(&wp->modes)->mode == mode) 1084 return (1); 1085 1086 TAILQ_FOREACH(wme, &wp->modes, entry) { 1087 if (wme->mode == mode) 1088 break; 1089 } 1090 if (wme != NULL) { 1091 TAILQ_REMOVE(&wp->modes, wme, entry); 1092 TAILQ_INSERT_HEAD(&wp->modes, wme, entry); 1093 } else { 1094 wme = xcalloc(1, sizeof *wme); 1095 wme->wp = wp; 1096 wme->swp = swp; 1097 wme->mode = mode; 1098 wme->prefix = 1; 1099 TAILQ_INSERT_HEAD(&wp->modes, wme, entry); 1100 wme->screen = wme->mode->init(wme, fs, args); 1101 } 1102 1103 wp->screen = wme->screen; 1104 wp->flags |= (PANE_REDRAW|PANE_CHANGED); 1105 1106 server_redraw_window_borders(wp->window); 1107 server_status_window(wp->window); 1108 notify_pane("pane-mode-changed", wp); 1109 1110 return (0); 1111 } 1112 1113 void 1114 window_pane_reset_mode(struct window_pane *wp) 1115 { 1116 struct window_mode_entry *wme, *next; 1117 1118 if (TAILQ_EMPTY(&wp->modes)) 1119 return; 1120 1121 wme = TAILQ_FIRST(&wp->modes); 1122 TAILQ_REMOVE(&wp->modes, wme, entry); 1123 wme->mode->free(wme); 1124 free(wme); 1125 1126 next = TAILQ_FIRST(&wp->modes); 1127 if (next == NULL) { 1128 wp->flags &= ~PANE_UNSEENCHANGES; 1129 log_debug("%s: no next mode", __func__); 1130 wp->screen = &wp->base; 1131 } else { 1132 log_debug("%s: next mode is %s", __func__, next->mode->name); 1133 wp->screen = next->screen; 1134 if (next->mode->resize != NULL) 1135 next->mode->resize(next, wp->sx, wp->sy); 1136 } 1137 wp->flags |= (PANE_REDRAW|PANE_CHANGED); 1138 1139 server_redraw_window_borders(wp->window); 1140 server_status_window(wp->window); 1141 notify_pane("pane-mode-changed", wp); 1142 } 1143 1144 void 1145 window_pane_reset_mode_all(struct window_pane *wp) 1146 { 1147 while (!TAILQ_EMPTY(&wp->modes)) 1148 window_pane_reset_mode(wp); 1149 } 1150 1151 static void 1152 window_pane_copy_key(struct window_pane *wp, key_code key) 1153 { 1154 struct window_pane *loop; 1155 1156 TAILQ_FOREACH(loop, &wp->window->panes, entry) { 1157 if (loop != wp && 1158 TAILQ_EMPTY(&loop->modes) && 1159 loop->fd != -1 && 1160 (~loop->flags & PANE_INPUTOFF) && 1161 window_pane_visible(loop) && 1162 options_get_number(loop->options, "synchronize-panes")) 1163 input_key_pane(loop, key, NULL); 1164 } 1165 } 1166 1167 int 1168 window_pane_key(struct window_pane *wp, struct client *c, struct session *s, 1169 struct winlink *wl, key_code key, struct mouse_event *m) 1170 { 1171 struct window_mode_entry *wme; 1172 1173 if (KEYC_IS_MOUSE(key) && m == NULL) 1174 return (-1); 1175 1176 wme = TAILQ_FIRST(&wp->modes); 1177 if (wme != NULL) { 1178 if (wme->mode->key != NULL && c != NULL) { 1179 key &= ~KEYC_MASK_FLAGS; 1180 wme->mode->key(wme, c, s, wl, key, m); 1181 } 1182 return (0); 1183 } 1184 1185 if (wp->fd == -1 || wp->flags & PANE_INPUTOFF) 1186 return (0); 1187 1188 if (input_key_pane(wp, key, m) != 0) 1189 return (-1); 1190 1191 if (KEYC_IS_MOUSE(key)) 1192 return (0); 1193 if (options_get_number(wp->options, "synchronize-panes")) 1194 window_pane_copy_key(wp, key); 1195 return (0); 1196 } 1197 1198 int 1199 window_pane_visible(struct window_pane *wp) 1200 { 1201 if (~wp->window->flags & WINDOW_ZOOMED) 1202 return (1); 1203 return (wp == wp->window->active); 1204 } 1205 1206 u_int 1207 window_pane_search(struct window_pane *wp, const char *term, int regex, 1208 int ignore) 1209 { 1210 struct screen *s = &wp->base; 1211 regex_t r; 1212 char *new = NULL, *line; 1213 u_int i; 1214 int flags = 0, found; 1215 size_t n; 1216 1217 if (!regex) { 1218 if (ignore) 1219 flags |= FNM_CASEFOLD; 1220 xasprintf(&new, "*%s*", term); 1221 } else { 1222 if (ignore) 1223 flags |= REG_ICASE; 1224 if (regcomp(&r, term, flags|REG_EXTENDED) != 0) 1225 return (0); 1226 } 1227 1228 for (i = 0; i < screen_size_y(s); i++) { 1229 line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s)); 1230 for (n = strlen(line); n > 0; n--) { 1231 if (!isspace((u_char)line[n - 1])) 1232 break; 1233 line[n - 1] = '\0'; 1234 } 1235 log_debug("%s: %s", __func__, line); 1236 if (!regex) 1237 found = (fnmatch(new, line, flags) == 0); 1238 else 1239 found = (regexec(&r, line, 0, NULL, 0) == 0); 1240 free(line); 1241 if (found) 1242 break; 1243 } 1244 if (!regex) 1245 free(new); 1246 else 1247 regfree(&r); 1248 1249 if (i == screen_size_y(s)) 1250 return (0); 1251 return (i + 1); 1252 } 1253 1254 /* Get MRU pane from a list. */ 1255 static struct window_pane * 1256 window_pane_choose_best(struct window_pane **list, u_int size) 1257 { 1258 struct window_pane *next, *best; 1259 u_int i; 1260 1261 if (size == 0) 1262 return (NULL); 1263 1264 best = list[0]; 1265 for (i = 1; i < size; i++) { 1266 next = list[i]; 1267 if (next->active_point > best->active_point) 1268 best = next; 1269 } 1270 return (best); 1271 } 1272 1273 /* 1274 * Find the pane directly above another. We build a list of those adjacent to 1275 * top edge and then choose the best. 1276 */ 1277 struct window_pane * 1278 window_pane_find_up(struct window_pane *wp) 1279 { 1280 struct window *w; 1281 struct window_pane *next, *best, **list; 1282 u_int edge, left, right, end, size; 1283 int status, found; 1284 1285 if (wp == NULL) 1286 return (NULL); 1287 w = wp->window; 1288 status = options_get_number(w->options, "pane-border-status"); 1289 1290 list = NULL; 1291 size = 0; 1292 1293 edge = wp->yoff; 1294 if (status == PANE_STATUS_TOP) { 1295 if (edge == 1) 1296 edge = w->sy + 1; 1297 } else if (status == PANE_STATUS_BOTTOM) { 1298 if (edge == 0) 1299 edge = w->sy; 1300 } else { 1301 if (edge == 0) 1302 edge = w->sy + 1; 1303 } 1304 1305 left = wp->xoff; 1306 right = wp->xoff + wp->sx; 1307 1308 TAILQ_FOREACH(next, &w->panes, entry) { 1309 if (next == wp) 1310 continue; 1311 if (next->yoff + next->sy + 1 != edge) 1312 continue; 1313 end = next->xoff + next->sx - 1; 1314 1315 found = 0; 1316 if (next->xoff < left && end > right) 1317 found = 1; 1318 else if (next->xoff >= left && next->xoff <= right) 1319 found = 1; 1320 else if (end >= left && end <= right) 1321 found = 1; 1322 if (!found) 1323 continue; 1324 list = xreallocarray(list, size + 1, sizeof *list); 1325 list[size++] = next; 1326 } 1327 1328 best = window_pane_choose_best(list, size); 1329 free(list); 1330 return (best); 1331 } 1332 1333 /* Find the pane directly below another. */ 1334 struct window_pane * 1335 window_pane_find_down(struct window_pane *wp) 1336 { 1337 struct window *w; 1338 struct window_pane *next, *best, **list; 1339 u_int edge, left, right, end, size; 1340 int status, found; 1341 1342 if (wp == NULL) 1343 return (NULL); 1344 w = wp->window; 1345 status = options_get_number(w->options, "pane-border-status"); 1346 1347 list = NULL; 1348 size = 0; 1349 1350 edge = wp->yoff + wp->sy + 1; 1351 if (status == PANE_STATUS_TOP) { 1352 if (edge >= w->sy) 1353 edge = 1; 1354 } else if (status == PANE_STATUS_BOTTOM) { 1355 if (edge >= w->sy - 1) 1356 edge = 0; 1357 } else { 1358 if (edge >= w->sy) 1359 edge = 0; 1360 } 1361 1362 left = wp->xoff; 1363 right = wp->xoff + wp->sx; 1364 1365 TAILQ_FOREACH(next, &w->panes, entry) { 1366 if (next == wp) 1367 continue; 1368 if (next->yoff != edge) 1369 continue; 1370 end = next->xoff + next->sx - 1; 1371 1372 found = 0; 1373 if (next->xoff < left && end > right) 1374 found = 1; 1375 else if (next->xoff >= left && next->xoff <= right) 1376 found = 1; 1377 else if (end >= left && end <= right) 1378 found = 1; 1379 if (!found) 1380 continue; 1381 list = xreallocarray(list, size + 1, sizeof *list); 1382 list[size++] = next; 1383 } 1384 1385 best = window_pane_choose_best(list, size); 1386 free(list); 1387 return (best); 1388 } 1389 1390 /* Find the pane directly to the left of another. */ 1391 struct window_pane * 1392 window_pane_find_left(struct window_pane *wp) 1393 { 1394 struct window *w; 1395 struct window_pane *next, *best, **list; 1396 u_int edge, top, bottom, end, size; 1397 int found; 1398 1399 if (wp == NULL) 1400 return (NULL); 1401 w = wp->window; 1402 1403 list = NULL; 1404 size = 0; 1405 1406 edge = wp->xoff; 1407 if (edge == 0) 1408 edge = w->sx + 1; 1409 1410 top = wp->yoff; 1411 bottom = wp->yoff + wp->sy; 1412 1413 TAILQ_FOREACH(next, &w->panes, entry) { 1414 if (next == wp) 1415 continue; 1416 if (next->xoff + next->sx + 1 != edge) 1417 continue; 1418 end = next->yoff + next->sy - 1; 1419 1420 found = 0; 1421 if (next->yoff < top && end > bottom) 1422 found = 1; 1423 else if (next->yoff >= top && next->yoff <= bottom) 1424 found = 1; 1425 else if (end >= top && end <= bottom) 1426 found = 1; 1427 if (!found) 1428 continue; 1429 list = xreallocarray(list, size + 1, sizeof *list); 1430 list[size++] = next; 1431 } 1432 1433 best = window_pane_choose_best(list, size); 1434 free(list); 1435 return (best); 1436 } 1437 1438 /* Find the pane directly to the right of another. */ 1439 struct window_pane * 1440 window_pane_find_right(struct window_pane *wp) 1441 { 1442 struct window *w; 1443 struct window_pane *next, *best, **list; 1444 u_int edge, top, bottom, end, size; 1445 int found; 1446 1447 if (wp == NULL) 1448 return (NULL); 1449 w = wp->window; 1450 1451 list = NULL; 1452 size = 0; 1453 1454 edge = wp->xoff + wp->sx + 1; 1455 if (edge >= w->sx) 1456 edge = 0; 1457 1458 top = wp->yoff; 1459 bottom = wp->yoff + wp->sy; 1460 1461 TAILQ_FOREACH(next, &w->panes, entry) { 1462 if (next == wp) 1463 continue; 1464 if (next->xoff != edge) 1465 continue; 1466 end = next->yoff + next->sy - 1; 1467 1468 found = 0; 1469 if (next->yoff < top && end > bottom) 1470 found = 1; 1471 else if (next->yoff >= top && next->yoff <= bottom) 1472 found = 1; 1473 else if (end >= top && end <= bottom) 1474 found = 1; 1475 if (!found) 1476 continue; 1477 list = xreallocarray(list, size + 1, sizeof *list); 1478 list[size++] = next; 1479 } 1480 1481 best = window_pane_choose_best(list, size); 1482 free(list); 1483 return (best); 1484 } 1485 1486 void 1487 window_pane_stack_push(struct window_panes *stack, struct window_pane *wp) 1488 { 1489 if (wp != NULL) { 1490 window_pane_stack_remove(stack, wp); 1491 TAILQ_INSERT_HEAD(stack, wp, sentry); 1492 wp->flags |= PANE_VISITED; 1493 } 1494 } 1495 1496 void 1497 window_pane_stack_remove(struct window_panes *stack, struct window_pane *wp) 1498 { 1499 if (wp != NULL && (wp->flags & PANE_VISITED)) { 1500 TAILQ_REMOVE(stack, wp, sentry); 1501 wp->flags &= ~PANE_VISITED; 1502 } 1503 } 1504 1505 /* Clear alert flags for a winlink */ 1506 void 1507 winlink_clear_flags(struct winlink *wl) 1508 { 1509 struct winlink *loop; 1510 1511 wl->window->flags &= ~WINDOW_ALERTFLAGS; 1512 TAILQ_FOREACH(loop, &wl->window->winlinks, wentry) { 1513 if ((loop->flags & WINLINK_ALERTFLAGS) != 0) { 1514 loop->flags &= ~WINLINK_ALERTFLAGS; 1515 server_status_session(loop->session); 1516 } 1517 } 1518 } 1519 1520 /* Shuffle window indexes up. */ 1521 int 1522 winlink_shuffle_up(struct session *s, struct winlink *wl, int before) 1523 { 1524 int idx, last; 1525 1526 if (wl == NULL) 1527 return (-1); 1528 if (before) 1529 idx = wl->idx; 1530 else 1531 idx = wl->idx + 1; 1532 1533 /* Find the next free index. */ 1534 for (last = idx; last < INT_MAX; last++) { 1535 if (winlink_find_by_index(&s->windows, last) == NULL) 1536 break; 1537 } 1538 if (last == INT_MAX) 1539 return (-1); 1540 1541 /* Move everything from last - 1 to idx up a bit. */ 1542 for (; last > idx; last--) { 1543 wl = winlink_find_by_index(&s->windows, last - 1); 1544 RB_REMOVE(winlinks, &s->windows, wl); 1545 wl->idx++; 1546 RB_INSERT(winlinks, &s->windows, wl); 1547 } 1548 1549 return (idx); 1550 } 1551 1552 static void 1553 window_pane_input_callback(struct client *c, __unused const char *path, 1554 int error, int closed, struct evbuffer *buffer, void *data) 1555 { 1556 struct window_pane_input_data *cdata = data; 1557 struct window_pane *wp; 1558 u_char *buf = EVBUFFER_DATA(buffer); 1559 size_t len = EVBUFFER_LENGTH(buffer); 1560 1561 wp = window_pane_find_by_id(cdata->wp); 1562 if (cdata->file != NULL && (wp == NULL || c->flags & CLIENT_DEAD)) { 1563 if (wp == NULL) { 1564 c->retval = 1; 1565 c->flags |= CLIENT_EXIT; 1566 } 1567 file_cancel(cdata->file); 1568 } else if (cdata->file == NULL || closed || error != 0) { 1569 cmdq_continue(cdata->item); 1570 server_client_unref(c); 1571 free(cdata); 1572 } else 1573 input_parse_buffer(wp, buf, len); 1574 evbuffer_drain(buffer, len); 1575 } 1576 1577 int 1578 window_pane_start_input(struct window_pane *wp, struct cmdq_item *item, 1579 char **cause) 1580 { 1581 struct client *c = cmdq_get_client(item); 1582 struct window_pane_input_data *cdata; 1583 1584 if (~wp->flags & PANE_EMPTY) { 1585 *cause = xstrdup("pane is not empty"); 1586 return (-1); 1587 } 1588 if (c->flags & (CLIENT_DEAD|CLIENT_EXITED)) 1589 return (1); 1590 if (c->session != NULL) 1591 return (1); 1592 1593 cdata = xmalloc(sizeof *cdata); 1594 cdata->item = item; 1595 cdata->wp = wp->id; 1596 cdata->file = file_read(c, "-", window_pane_input_callback, cdata); 1597 c->references++; 1598 1599 return (0); 1600 } 1601 1602 void * 1603 window_pane_get_new_data(struct window_pane *wp, 1604 struct window_pane_offset *wpo, size_t *size) 1605 { 1606 size_t used = wpo->used - wp->base_offset; 1607 1608 *size = EVBUFFER_LENGTH(wp->event->input) - used; 1609 return (EVBUFFER_DATA(wp->event->input) + used); 1610 } 1611 1612 void 1613 window_pane_update_used_data(struct window_pane *wp, 1614 struct window_pane_offset *wpo, size_t size) 1615 { 1616 size_t used = wpo->used - wp->base_offset; 1617 1618 if (size > EVBUFFER_LENGTH(wp->event->input) - used) 1619 size = EVBUFFER_LENGTH(wp->event->input) - used; 1620 wpo->used += size; 1621 } 1622 1623 void 1624 window_set_fill_character(struct window *w) 1625 { 1626 const char *value; 1627 struct utf8_data *ud; 1628 1629 free(w->fill_character); 1630 w->fill_character = NULL; 1631 1632 value = options_get_string(w->options, "fill-character"); 1633 if (*value != '\0' && utf8_isvalid(value)) { 1634 ud = utf8_fromcstr(value); 1635 if (ud != NULL && ud[0].width == 1) 1636 w->fill_character = ud; 1637 } 1638 } 1639 1640 void 1641 window_pane_default_cursor(struct window_pane *wp) 1642 { 1643 struct screen *s = wp->screen; 1644 int c; 1645 1646 c = options_get_number(wp->options, "cursor-colour"); 1647 s->default_ccolour = c; 1648 1649 c = options_get_number(wp->options, "cursor-style"); 1650 s->default_mode = 0; 1651 screen_set_cursor_style(c, &s->default_cstyle, &s->default_mode); 1652 } 1653