1 /* $OpenBSD: window.c,v 1.290 2024/04/10 07:15:21 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, 0); 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 && (~wp->flags & PANE_EXITED)) { 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, int notify) 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); 686 687 if (notify) 688 notify_window("window-layout-changed", w); 689 690 return (0); 691 } 692 693 int 694 window_push_zoom(struct window *w, int always, int flag) 695 { 696 log_debug("%s: @%u %d", __func__, w->id, 697 flag && (w->flags & WINDOW_ZOOMED)); 698 if (flag && (always || (w->flags & WINDOW_ZOOMED))) 699 w->flags |= WINDOW_WASZOOMED; 700 else 701 w->flags &= ~WINDOW_WASZOOMED; 702 return (window_unzoom(w, 1) == 0); 703 } 704 705 int 706 window_pop_zoom(struct window *w) 707 { 708 log_debug("%s: @%u %d", __func__, w->id, 709 !!(w->flags & WINDOW_WASZOOMED)); 710 if (w->flags & WINDOW_WASZOOMED) 711 return (window_zoom(w->active) == 0); 712 return (0); 713 } 714 715 struct window_pane * 716 window_add_pane(struct window *w, struct window_pane *other, u_int hlimit, 717 int flags) 718 { 719 struct window_pane *wp; 720 721 if (other == NULL) 722 other = w->active; 723 724 wp = window_pane_create(w, w->sx, w->sy, hlimit); 725 if (TAILQ_EMPTY(&w->panes)) { 726 log_debug("%s: @%u at start", __func__, w->id); 727 TAILQ_INSERT_HEAD(&w->panes, wp, entry); 728 } else if (flags & SPAWN_BEFORE) { 729 log_debug("%s: @%u before %%%u", __func__, w->id, wp->id); 730 if (flags & SPAWN_FULLSIZE) 731 TAILQ_INSERT_HEAD(&w->panes, wp, entry); 732 else 733 TAILQ_INSERT_BEFORE(other, wp, entry); 734 } else { 735 log_debug("%s: @%u after %%%u", __func__, w->id, wp->id); 736 if (flags & SPAWN_FULLSIZE) 737 TAILQ_INSERT_TAIL(&w->panes, wp, entry); 738 else 739 TAILQ_INSERT_AFTER(&w->panes, other, wp, entry); 740 } 741 return (wp); 742 } 743 744 void 745 window_lost_pane(struct window *w, struct window_pane *wp) 746 { 747 log_debug("%s: @%u pane %%%u", __func__, w->id, wp->id); 748 749 if (wp == marked_pane.wp) 750 server_clear_marked(); 751 752 window_pane_stack_remove(&w->last_panes, wp); 753 if (wp == w->active) { 754 w->active = TAILQ_FIRST(&w->last_panes); 755 if (w->active == NULL) { 756 w->active = TAILQ_PREV(wp, window_panes, entry); 757 if (w->active == NULL) 758 w->active = TAILQ_NEXT(wp, entry); 759 } 760 if (w->active != NULL) { 761 window_pane_stack_remove(&w->last_panes, w->active); 762 w->active->flags |= PANE_CHANGED; 763 notify_window("window-pane-changed", w); 764 window_update_focus(w); 765 } 766 } 767 } 768 769 void 770 window_remove_pane(struct window *w, struct window_pane *wp) 771 { 772 window_lost_pane(w, wp); 773 774 TAILQ_REMOVE(&w->panes, wp, entry); 775 window_pane_destroy(wp); 776 } 777 778 struct window_pane * 779 window_pane_at_index(struct window *w, u_int idx) 780 { 781 struct window_pane *wp; 782 u_int n; 783 784 n = options_get_number(w->options, "pane-base-index"); 785 TAILQ_FOREACH(wp, &w->panes, entry) { 786 if (n == idx) 787 return (wp); 788 n++; 789 } 790 return (NULL); 791 } 792 793 struct window_pane * 794 window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n) 795 { 796 for (; n > 0; n--) { 797 if ((wp = TAILQ_NEXT(wp, entry)) == NULL) 798 wp = TAILQ_FIRST(&w->panes); 799 } 800 801 return (wp); 802 } 803 804 struct window_pane * 805 window_pane_previous_by_number(struct window *w, struct window_pane *wp, 806 u_int n) 807 { 808 for (; n > 0; n--) { 809 if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL) 810 wp = TAILQ_LAST(&w->panes, window_panes); 811 } 812 813 return (wp); 814 } 815 816 int 817 window_pane_index(struct window_pane *wp, u_int *i) 818 { 819 struct window_pane *wq; 820 struct window *w = wp->window; 821 822 *i = options_get_number(w->options, "pane-base-index"); 823 TAILQ_FOREACH(wq, &w->panes, entry) { 824 if (wp == wq) { 825 return (0); 826 } 827 (*i)++; 828 } 829 830 return (-1); 831 } 832 833 u_int 834 window_count_panes(struct window *w) 835 { 836 struct window_pane *wp; 837 u_int n; 838 839 n = 0; 840 TAILQ_FOREACH(wp, &w->panes, entry) 841 n++; 842 return (n); 843 } 844 845 void 846 window_destroy_panes(struct window *w) 847 { 848 struct window_pane *wp; 849 850 while (!TAILQ_EMPTY(&w->last_panes)) { 851 wp = TAILQ_FIRST(&w->last_panes); 852 window_pane_stack_remove(&w->last_panes, wp); 853 } 854 855 while (!TAILQ_EMPTY(&w->panes)) { 856 wp = TAILQ_FIRST(&w->panes); 857 TAILQ_REMOVE(&w->panes, wp, entry); 858 window_pane_destroy(wp); 859 } 860 } 861 862 const char * 863 window_printable_flags(struct winlink *wl, int escape) 864 { 865 struct session *s = wl->session; 866 static char flags[32]; 867 int pos; 868 869 pos = 0; 870 if (wl->flags & WINLINK_ACTIVITY) { 871 flags[pos++] = '#'; 872 if (escape) 873 flags[pos++] = '#'; 874 } 875 if (wl->flags & WINLINK_BELL) 876 flags[pos++] = '!'; 877 if (wl->flags & WINLINK_SILENCE) 878 flags[pos++] = '~'; 879 if (wl == s->curw) 880 flags[pos++] = '*'; 881 if (wl == TAILQ_FIRST(&s->lastw)) 882 flags[pos++] = '-'; 883 if (server_check_marked() && wl == marked_pane.wl) 884 flags[pos++] = 'M'; 885 if (wl->window->flags & WINDOW_ZOOMED) 886 flags[pos++] = 'Z'; 887 flags[pos] = '\0'; 888 return (flags); 889 } 890 891 struct window_pane * 892 window_pane_find_by_id_str(const char *s) 893 { 894 const char *errstr; 895 u_int id; 896 897 if (*s != '%') 898 return (NULL); 899 900 id = strtonum(s + 1, 0, UINT_MAX, &errstr); 901 if (errstr != NULL) 902 return (NULL); 903 return (window_pane_find_by_id(id)); 904 } 905 906 struct window_pane * 907 window_pane_find_by_id(u_int id) 908 { 909 struct window_pane wp; 910 911 wp.id = id; 912 return (RB_FIND(window_pane_tree, &all_window_panes, &wp)); 913 } 914 915 static struct window_pane * 916 window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit) 917 { 918 struct window_pane *wp; 919 char host[HOST_NAME_MAX + 1]; 920 921 wp = xcalloc(1, sizeof *wp); 922 wp->window = w; 923 wp->options = options_create(w->options); 924 wp->flags = PANE_STYLECHANGED; 925 926 wp->id = next_window_pane_id++; 927 RB_INSERT(window_pane_tree, &all_window_panes, wp); 928 929 wp->fd = -1; 930 931 TAILQ_INIT(&wp->modes); 932 933 TAILQ_INIT (&wp->resize_queue); 934 935 wp->sx = sx; 936 wp->sy = sy; 937 938 wp->pipe_fd = -1; 939 940 colour_palette_init(&wp->palette); 941 colour_palette_from_option(&wp->palette, wp->options); 942 943 screen_init(&wp->base, sx, sy, hlimit); 944 wp->screen = &wp->base; 945 window_pane_default_cursor(wp); 946 947 screen_init(&wp->status_screen, 1, 1, 0); 948 949 if (gethostname(host, sizeof host) == 0) 950 screen_set_title(&wp->base, host); 951 952 return (wp); 953 } 954 955 static void 956 window_pane_destroy(struct window_pane *wp) 957 { 958 struct window_pane_resize *r; 959 struct window_pane_resize *r1; 960 961 window_pane_reset_mode_all(wp); 962 free(wp->searchstr); 963 964 if (wp->fd != -1) { 965 bufferevent_free(wp->event); 966 close(wp->fd); 967 } 968 if (wp->ictx != NULL) 969 input_free(wp->ictx); 970 971 screen_free(&wp->status_screen); 972 973 screen_free(&wp->base); 974 975 if (wp->pipe_fd != -1) { 976 bufferevent_free(wp->pipe_event); 977 close(wp->pipe_fd); 978 } 979 980 if (event_initialized(&wp->resize_timer)) 981 event_del(&wp->resize_timer); 982 TAILQ_FOREACH_SAFE(r, &wp->resize_queue, entry, r1) { 983 TAILQ_REMOVE(&wp->resize_queue, r, entry); 984 free(r); 985 } 986 987 RB_REMOVE(window_pane_tree, &all_window_panes, wp); 988 989 options_free(wp->options); 990 free((void *)wp->cwd); 991 free(wp->shell); 992 cmd_free_argv(wp->argc, wp->argv); 993 colour_palette_free(&wp->palette); 994 free(wp); 995 } 996 997 static void 998 window_pane_read_callback(__unused struct bufferevent *bufev, void *data) 999 { 1000 struct window_pane *wp = data; 1001 struct evbuffer *evb = wp->event->input; 1002 struct window_pane_offset *wpo = &wp->pipe_offset; 1003 size_t size = EVBUFFER_LENGTH(evb); 1004 char *new_data; 1005 size_t new_size; 1006 struct client *c; 1007 1008 if (wp->pipe_fd != -1) { 1009 new_data = window_pane_get_new_data(wp, wpo, &new_size); 1010 if (new_size > 0) { 1011 bufferevent_write(wp->pipe_event, new_data, new_size); 1012 window_pane_update_used_data(wp, wpo, new_size); 1013 } 1014 } 1015 1016 log_debug("%%%u has %zu bytes", wp->id, size); 1017 TAILQ_FOREACH(c, &clients, entry) { 1018 if (c->session != NULL && (c->flags & CLIENT_CONTROL)) 1019 control_write_output(c, wp); 1020 } 1021 input_parse_pane(wp); 1022 bufferevent_disable(wp->event, EV_READ); 1023 } 1024 1025 static void 1026 window_pane_error_callback(__unused struct bufferevent *bufev, 1027 __unused short what, void *data) 1028 { 1029 struct window_pane *wp = data; 1030 1031 log_debug("%%%u error", wp->id); 1032 wp->flags |= PANE_EXITED; 1033 1034 if (window_pane_destroy_ready(wp)) 1035 server_destroy_pane(wp, 1); 1036 } 1037 1038 void 1039 window_pane_set_event(struct window_pane *wp) 1040 { 1041 setblocking(wp->fd, 0); 1042 1043 wp->event = bufferevent_new(wp->fd, window_pane_read_callback, 1044 NULL, window_pane_error_callback, wp); 1045 if (wp->event == NULL) 1046 fatalx("out of memory"); 1047 wp->ictx = input_init(wp, wp->event, &wp->palette); 1048 1049 bufferevent_enable(wp->event, EV_READ|EV_WRITE); 1050 } 1051 1052 void 1053 window_pane_resize(struct window_pane *wp, u_int sx, u_int sy) 1054 { 1055 struct window_mode_entry *wme; 1056 struct window_pane_resize *r; 1057 1058 if (sx == wp->sx && sy == wp->sy) 1059 return; 1060 1061 r = xmalloc(sizeof *r); 1062 r->sx = sx; 1063 r->sy = sy; 1064 r->osx = wp->sx; 1065 r->osy = wp->sy; 1066 TAILQ_INSERT_TAIL (&wp->resize_queue, r, entry); 1067 1068 wp->sx = sx; 1069 wp->sy = sy; 1070 1071 log_debug("%s: %%%u resize %ux%u", __func__, wp->id, sx, sy); 1072 screen_resize(&wp->base, sx, sy, wp->base.saved_grid == NULL); 1073 1074 wme = TAILQ_FIRST(&wp->modes); 1075 if (wme != NULL && wme->mode->resize != NULL) 1076 wme->mode->resize(wme, sx, sy); 1077 } 1078 1079 int 1080 window_pane_set_mode(struct window_pane *wp, struct window_pane *swp, 1081 const struct window_mode *mode, struct cmd_find_state *fs, 1082 struct args *args) 1083 { 1084 struct window_mode_entry *wme; 1085 1086 if (!TAILQ_EMPTY(&wp->modes) && TAILQ_FIRST(&wp->modes)->mode == mode) 1087 return (1); 1088 1089 TAILQ_FOREACH(wme, &wp->modes, entry) { 1090 if (wme->mode == mode) 1091 break; 1092 } 1093 if (wme != NULL) { 1094 TAILQ_REMOVE(&wp->modes, wme, entry); 1095 TAILQ_INSERT_HEAD(&wp->modes, wme, entry); 1096 } else { 1097 wme = xcalloc(1, sizeof *wme); 1098 wme->wp = wp; 1099 wme->swp = swp; 1100 wme->mode = mode; 1101 wme->prefix = 1; 1102 TAILQ_INSERT_HEAD(&wp->modes, wme, entry); 1103 wme->screen = wme->mode->init(wme, fs, args); 1104 } 1105 1106 wp->screen = wme->screen; 1107 wp->flags |= (PANE_REDRAW|PANE_CHANGED); 1108 1109 server_redraw_window_borders(wp->window); 1110 server_status_window(wp->window); 1111 notify_pane("pane-mode-changed", wp); 1112 1113 return (0); 1114 } 1115 1116 void 1117 window_pane_reset_mode(struct window_pane *wp) 1118 { 1119 struct window_mode_entry *wme, *next; 1120 1121 if (TAILQ_EMPTY(&wp->modes)) 1122 return; 1123 1124 wme = TAILQ_FIRST(&wp->modes); 1125 TAILQ_REMOVE(&wp->modes, wme, entry); 1126 wme->mode->free(wme); 1127 free(wme); 1128 1129 next = TAILQ_FIRST(&wp->modes); 1130 if (next == NULL) { 1131 wp->flags &= ~PANE_UNSEENCHANGES; 1132 log_debug("%s: no next mode", __func__); 1133 wp->screen = &wp->base; 1134 } else { 1135 log_debug("%s: next mode is %s", __func__, next->mode->name); 1136 wp->screen = next->screen; 1137 if (next->mode->resize != NULL) 1138 next->mode->resize(next, wp->sx, wp->sy); 1139 } 1140 wp->flags |= (PANE_REDRAW|PANE_CHANGED); 1141 1142 server_redraw_window_borders(wp->window); 1143 server_status_window(wp->window); 1144 notify_pane("pane-mode-changed", wp); 1145 } 1146 1147 void 1148 window_pane_reset_mode_all(struct window_pane *wp) 1149 { 1150 while (!TAILQ_EMPTY(&wp->modes)) 1151 window_pane_reset_mode(wp); 1152 } 1153 1154 static void 1155 window_pane_copy_key(struct window_pane *wp, key_code key) 1156 { 1157 struct window_pane *loop; 1158 1159 TAILQ_FOREACH(loop, &wp->window->panes, entry) { 1160 if (loop != wp && 1161 TAILQ_EMPTY(&loop->modes) && 1162 loop->fd != -1 && 1163 (~loop->flags & PANE_INPUTOFF) && 1164 window_pane_visible(loop) && 1165 options_get_number(loop->options, "synchronize-panes")) 1166 input_key_pane(loop, key, NULL); 1167 } 1168 } 1169 1170 int 1171 window_pane_key(struct window_pane *wp, struct client *c, struct session *s, 1172 struct winlink *wl, key_code key, struct mouse_event *m) 1173 { 1174 struct window_mode_entry *wme; 1175 1176 if (KEYC_IS_MOUSE(key) && m == NULL) 1177 return (-1); 1178 1179 wme = TAILQ_FIRST(&wp->modes); 1180 if (wme != NULL) { 1181 if (wme->mode->key != NULL && c != NULL) { 1182 key &= ~KEYC_MASK_FLAGS; 1183 wme->mode->key(wme, c, s, wl, key, m); 1184 } 1185 return (0); 1186 } 1187 1188 if (wp->fd == -1 || wp->flags & PANE_INPUTOFF) 1189 return (0); 1190 1191 if (input_key_pane(wp, key, m) != 0) 1192 return (-1); 1193 1194 if (KEYC_IS_MOUSE(key)) 1195 return (0); 1196 if (options_get_number(wp->options, "synchronize-panes")) 1197 window_pane_copy_key(wp, key); 1198 return (0); 1199 } 1200 1201 int 1202 window_pane_visible(struct window_pane *wp) 1203 { 1204 if (~wp->window->flags & WINDOW_ZOOMED) 1205 return (1); 1206 return (wp == wp->window->active); 1207 } 1208 1209 int 1210 window_pane_exited(struct window_pane *wp) 1211 { 1212 return (wp->fd == -1 || (wp->flags & PANE_EXITED)); 1213 } 1214 1215 u_int 1216 window_pane_search(struct window_pane *wp, const char *term, int regex, 1217 int ignore) 1218 { 1219 struct screen *s = &wp->base; 1220 regex_t r; 1221 char *new = NULL, *line; 1222 u_int i; 1223 int flags = 0, found; 1224 size_t n; 1225 1226 if (!regex) { 1227 if (ignore) 1228 flags |= FNM_CASEFOLD; 1229 xasprintf(&new, "*%s*", term); 1230 } else { 1231 if (ignore) 1232 flags |= REG_ICASE; 1233 if (regcomp(&r, term, flags|REG_EXTENDED) != 0) 1234 return (0); 1235 } 1236 1237 for (i = 0; i < screen_size_y(s); i++) { 1238 line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s)); 1239 for (n = strlen(line); n > 0; n--) { 1240 if (!isspace((u_char)line[n - 1])) 1241 break; 1242 line[n - 1] = '\0'; 1243 } 1244 log_debug("%s: %s", __func__, line); 1245 if (!regex) 1246 found = (fnmatch(new, line, flags) == 0); 1247 else 1248 found = (regexec(&r, line, 0, NULL, 0) == 0); 1249 free(line); 1250 if (found) 1251 break; 1252 } 1253 if (!regex) 1254 free(new); 1255 else 1256 regfree(&r); 1257 1258 if (i == screen_size_y(s)) 1259 return (0); 1260 return (i + 1); 1261 } 1262 1263 /* Get MRU pane from a list. */ 1264 static struct window_pane * 1265 window_pane_choose_best(struct window_pane **list, u_int size) 1266 { 1267 struct window_pane *next, *best; 1268 u_int i; 1269 1270 if (size == 0) 1271 return (NULL); 1272 1273 best = list[0]; 1274 for (i = 1; i < size; i++) { 1275 next = list[i]; 1276 if (next->active_point > best->active_point) 1277 best = next; 1278 } 1279 return (best); 1280 } 1281 1282 /* 1283 * Find the pane directly above another. We build a list of those adjacent to 1284 * top edge and then choose the best. 1285 */ 1286 struct window_pane * 1287 window_pane_find_up(struct window_pane *wp) 1288 { 1289 struct window *w; 1290 struct window_pane *next, *best, **list; 1291 u_int edge, left, right, end, size; 1292 int status, found; 1293 1294 if (wp == NULL) 1295 return (NULL); 1296 w = wp->window; 1297 status = options_get_number(w->options, "pane-border-status"); 1298 1299 list = NULL; 1300 size = 0; 1301 1302 edge = wp->yoff; 1303 if (status == PANE_STATUS_TOP) { 1304 if (edge == 1) 1305 edge = w->sy + 1; 1306 } else if (status == PANE_STATUS_BOTTOM) { 1307 if (edge == 0) 1308 edge = w->sy; 1309 } else { 1310 if (edge == 0) 1311 edge = w->sy + 1; 1312 } 1313 1314 left = wp->xoff; 1315 right = wp->xoff + wp->sx; 1316 1317 TAILQ_FOREACH(next, &w->panes, entry) { 1318 if (next == wp) 1319 continue; 1320 if (next->yoff + next->sy + 1 != edge) 1321 continue; 1322 end = next->xoff + next->sx - 1; 1323 1324 found = 0; 1325 if (next->xoff < left && end > right) 1326 found = 1; 1327 else if (next->xoff >= left && next->xoff <= right) 1328 found = 1; 1329 else if (end >= left && end <= right) 1330 found = 1; 1331 if (!found) 1332 continue; 1333 list = xreallocarray(list, size + 1, sizeof *list); 1334 list[size++] = next; 1335 } 1336 1337 best = window_pane_choose_best(list, size); 1338 free(list); 1339 return (best); 1340 } 1341 1342 /* Find the pane directly below another. */ 1343 struct window_pane * 1344 window_pane_find_down(struct window_pane *wp) 1345 { 1346 struct window *w; 1347 struct window_pane *next, *best, **list; 1348 u_int edge, left, right, end, size; 1349 int status, found; 1350 1351 if (wp == NULL) 1352 return (NULL); 1353 w = wp->window; 1354 status = options_get_number(w->options, "pane-border-status"); 1355 1356 list = NULL; 1357 size = 0; 1358 1359 edge = wp->yoff + wp->sy + 1; 1360 if (status == PANE_STATUS_TOP) { 1361 if (edge >= w->sy) 1362 edge = 1; 1363 } else if (status == PANE_STATUS_BOTTOM) { 1364 if (edge >= w->sy - 1) 1365 edge = 0; 1366 } else { 1367 if (edge >= w->sy) 1368 edge = 0; 1369 } 1370 1371 left = wp->xoff; 1372 right = wp->xoff + wp->sx; 1373 1374 TAILQ_FOREACH(next, &w->panes, entry) { 1375 if (next == wp) 1376 continue; 1377 if (next->yoff != edge) 1378 continue; 1379 end = next->xoff + next->sx - 1; 1380 1381 found = 0; 1382 if (next->xoff < left && end > right) 1383 found = 1; 1384 else if (next->xoff >= left && next->xoff <= right) 1385 found = 1; 1386 else if (end >= left && end <= right) 1387 found = 1; 1388 if (!found) 1389 continue; 1390 list = xreallocarray(list, size + 1, sizeof *list); 1391 list[size++] = next; 1392 } 1393 1394 best = window_pane_choose_best(list, size); 1395 free(list); 1396 return (best); 1397 } 1398 1399 /* Find the pane directly to the left of another. */ 1400 struct window_pane * 1401 window_pane_find_left(struct window_pane *wp) 1402 { 1403 struct window *w; 1404 struct window_pane *next, *best, **list; 1405 u_int edge, top, bottom, end, size; 1406 int found; 1407 1408 if (wp == NULL) 1409 return (NULL); 1410 w = wp->window; 1411 1412 list = NULL; 1413 size = 0; 1414 1415 edge = wp->xoff; 1416 if (edge == 0) 1417 edge = w->sx + 1; 1418 1419 top = wp->yoff; 1420 bottom = wp->yoff + wp->sy; 1421 1422 TAILQ_FOREACH(next, &w->panes, entry) { 1423 if (next == wp) 1424 continue; 1425 if (next->xoff + next->sx + 1 != edge) 1426 continue; 1427 end = next->yoff + next->sy - 1; 1428 1429 found = 0; 1430 if (next->yoff < top && end > bottom) 1431 found = 1; 1432 else if (next->yoff >= top && next->yoff <= bottom) 1433 found = 1; 1434 else if (end >= top && end <= bottom) 1435 found = 1; 1436 if (!found) 1437 continue; 1438 list = xreallocarray(list, size + 1, sizeof *list); 1439 list[size++] = next; 1440 } 1441 1442 best = window_pane_choose_best(list, size); 1443 free(list); 1444 return (best); 1445 } 1446 1447 /* Find the pane directly to the right of another. */ 1448 struct window_pane * 1449 window_pane_find_right(struct window_pane *wp) 1450 { 1451 struct window *w; 1452 struct window_pane *next, *best, **list; 1453 u_int edge, top, bottom, end, size; 1454 int found; 1455 1456 if (wp == NULL) 1457 return (NULL); 1458 w = wp->window; 1459 1460 list = NULL; 1461 size = 0; 1462 1463 edge = wp->xoff + wp->sx + 1; 1464 if (edge >= w->sx) 1465 edge = 0; 1466 1467 top = wp->yoff; 1468 bottom = wp->yoff + wp->sy; 1469 1470 TAILQ_FOREACH(next, &w->panes, entry) { 1471 if (next == wp) 1472 continue; 1473 if (next->xoff != edge) 1474 continue; 1475 end = next->yoff + next->sy - 1; 1476 1477 found = 0; 1478 if (next->yoff < top && end > bottom) 1479 found = 1; 1480 else if (next->yoff >= top && next->yoff <= bottom) 1481 found = 1; 1482 else if (end >= top && end <= bottom) 1483 found = 1; 1484 if (!found) 1485 continue; 1486 list = xreallocarray(list, size + 1, sizeof *list); 1487 list[size++] = next; 1488 } 1489 1490 best = window_pane_choose_best(list, size); 1491 free(list); 1492 return (best); 1493 } 1494 1495 void 1496 window_pane_stack_push(struct window_panes *stack, struct window_pane *wp) 1497 { 1498 if (wp != NULL) { 1499 window_pane_stack_remove(stack, wp); 1500 TAILQ_INSERT_HEAD(stack, wp, sentry); 1501 wp->flags |= PANE_VISITED; 1502 } 1503 } 1504 1505 void 1506 window_pane_stack_remove(struct window_panes *stack, struct window_pane *wp) 1507 { 1508 if (wp != NULL && (wp->flags & PANE_VISITED)) { 1509 TAILQ_REMOVE(stack, wp, sentry); 1510 wp->flags &= ~PANE_VISITED; 1511 } 1512 } 1513 1514 /* Clear alert flags for a winlink */ 1515 void 1516 winlink_clear_flags(struct winlink *wl) 1517 { 1518 struct winlink *loop; 1519 1520 wl->window->flags &= ~WINDOW_ALERTFLAGS; 1521 TAILQ_FOREACH(loop, &wl->window->winlinks, wentry) { 1522 if ((loop->flags & WINLINK_ALERTFLAGS) != 0) { 1523 loop->flags &= ~WINLINK_ALERTFLAGS; 1524 server_status_session(loop->session); 1525 } 1526 } 1527 } 1528 1529 /* Shuffle window indexes up. */ 1530 int 1531 winlink_shuffle_up(struct session *s, struct winlink *wl, int before) 1532 { 1533 int idx, last; 1534 1535 if (wl == NULL) 1536 return (-1); 1537 if (before) 1538 idx = wl->idx; 1539 else 1540 idx = wl->idx + 1; 1541 1542 /* Find the next free index. */ 1543 for (last = idx; last < INT_MAX; last++) { 1544 if (winlink_find_by_index(&s->windows, last) == NULL) 1545 break; 1546 } 1547 if (last == INT_MAX) 1548 return (-1); 1549 1550 /* Move everything from last - 1 to idx up a bit. */ 1551 for (; last > idx; last--) { 1552 wl = winlink_find_by_index(&s->windows, last - 1); 1553 RB_REMOVE(winlinks, &s->windows, wl); 1554 wl->idx++; 1555 RB_INSERT(winlinks, &s->windows, wl); 1556 } 1557 1558 return (idx); 1559 } 1560 1561 static void 1562 window_pane_input_callback(struct client *c, __unused const char *path, 1563 int error, int closed, struct evbuffer *buffer, void *data) 1564 { 1565 struct window_pane_input_data *cdata = data; 1566 struct window_pane *wp; 1567 u_char *buf = EVBUFFER_DATA(buffer); 1568 size_t len = EVBUFFER_LENGTH(buffer); 1569 1570 wp = window_pane_find_by_id(cdata->wp); 1571 if (cdata->file != NULL && (wp == NULL || c->flags & CLIENT_DEAD)) { 1572 if (wp == NULL) { 1573 c->retval = 1; 1574 c->flags |= CLIENT_EXIT; 1575 } 1576 file_cancel(cdata->file); 1577 } else if (cdata->file == NULL || closed || error != 0) { 1578 cmdq_continue(cdata->item); 1579 server_client_unref(c); 1580 free(cdata); 1581 } else 1582 input_parse_buffer(wp, buf, len); 1583 evbuffer_drain(buffer, len); 1584 } 1585 1586 int 1587 window_pane_start_input(struct window_pane *wp, struct cmdq_item *item, 1588 char **cause) 1589 { 1590 struct client *c = cmdq_get_client(item); 1591 struct window_pane_input_data *cdata; 1592 1593 if (~wp->flags & PANE_EMPTY) { 1594 *cause = xstrdup("pane is not empty"); 1595 return (-1); 1596 } 1597 if (c->flags & (CLIENT_DEAD|CLIENT_EXITED)) 1598 return (1); 1599 if (c->session != NULL) 1600 return (1); 1601 1602 cdata = xmalloc(sizeof *cdata); 1603 cdata->item = item; 1604 cdata->wp = wp->id; 1605 cdata->file = file_read(c, "-", window_pane_input_callback, cdata); 1606 c->references++; 1607 1608 return (0); 1609 } 1610 1611 void * 1612 window_pane_get_new_data(struct window_pane *wp, 1613 struct window_pane_offset *wpo, size_t *size) 1614 { 1615 size_t used = wpo->used - wp->base_offset; 1616 1617 *size = EVBUFFER_LENGTH(wp->event->input) - used; 1618 return (EVBUFFER_DATA(wp->event->input) + used); 1619 } 1620 1621 void 1622 window_pane_update_used_data(struct window_pane *wp, 1623 struct window_pane_offset *wpo, size_t size) 1624 { 1625 size_t used = wpo->used - wp->base_offset; 1626 1627 if (size > EVBUFFER_LENGTH(wp->event->input) - used) 1628 size = EVBUFFER_LENGTH(wp->event->input) - used; 1629 wpo->used += size; 1630 } 1631 1632 void 1633 window_set_fill_character(struct window *w) 1634 { 1635 const char *value; 1636 struct utf8_data *ud; 1637 1638 free(w->fill_character); 1639 w->fill_character = NULL; 1640 1641 value = options_get_string(w->options, "fill-character"); 1642 if (*value != '\0' && utf8_isvalid(value)) { 1643 ud = utf8_fromcstr(value); 1644 if (ud != NULL && ud[0].width == 1) 1645 w->fill_character = ud; 1646 } 1647 } 1648 1649 void 1650 window_pane_default_cursor(struct window_pane *wp) 1651 { 1652 struct screen *s = wp->screen; 1653 int c; 1654 1655 c = options_get_number(wp->options, "cursor-colour"); 1656 s->default_ccolour = c; 1657 1658 c = options_get_number(wp->options, "cursor-style"); 1659 s->default_mode = 0; 1660 screen_set_cursor_style(c, &s->default_cstyle, &s->default_mode); 1661 } 1662