status.c revision 1.171
1/* $OpenBSD: status.c,v 1.171 2017/11/02 21:29:17 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/time.h> 21 22#include <errno.h> 23#include <limits.h> 24#include <stdarg.h> 25#include <stdlib.h> 26#include <string.h> 27#include <time.h> 28#include <unistd.h> 29 30#include "tmux.h" 31 32static char *status_redraw_get_left(struct client *, time_t, 33 struct grid_cell *, size_t *); 34static char *status_redraw_get_right(struct client *, time_t, 35 struct grid_cell *, size_t *); 36static char *status_print(struct client *, struct winlink *, time_t, 37 struct grid_cell *); 38static char *status_replace(struct client *, struct winlink *, const char *, 39 time_t); 40static void status_message_callback(int, short, void *); 41static void status_timer_callback(int, short, void *); 42 43static char *status_prompt_find_history_file(void); 44static const char *status_prompt_up_history(u_int *); 45static const char *status_prompt_down_history(u_int *); 46static void status_prompt_add_history(const char *); 47 48static const char **status_prompt_complete_list(u_int *, const char *); 49static char *status_prompt_complete_prefix(const char **, u_int); 50static char *status_prompt_complete(struct session *, const char *); 51 52/* Status prompt history. */ 53#define PROMPT_HISTORY 100 54static char **status_prompt_hlist; 55static u_int status_prompt_hsize; 56 57/* Find the history file to load/save from/to. */ 58static char * 59status_prompt_find_history_file(void) 60{ 61 const char *home, *history_file; 62 char *path; 63 64 history_file = options_get_string(global_options, "history-file"); 65 if (*history_file == '\0') 66 return (NULL); 67 if (*history_file == '/') 68 return (xstrdup(history_file)); 69 70 if (history_file[0] != '~' || history_file[1] != '/') 71 return (NULL); 72 if ((home = find_home()) == NULL) 73 return (NULL); 74 xasprintf(&path, "%s%s", home, history_file + 1); 75 return (path); 76} 77 78/* Load status prompt history from file. */ 79void 80status_prompt_load_history(void) 81{ 82 FILE *f; 83 char *history_file, *line, *tmp; 84 size_t length; 85 86 if ((history_file = status_prompt_find_history_file()) == NULL) 87 return; 88 log_debug("loading history from %s", history_file); 89 90 f = fopen(history_file, "r"); 91 if (f == NULL) { 92 log_debug("%s: %s", history_file, strerror(errno)); 93 free(history_file); 94 return; 95 } 96 free(history_file); 97 98 for (;;) { 99 if ((line = fgetln(f, &length)) == NULL) 100 break; 101 102 if (length > 0) { 103 if (line[length - 1] == '\n') { 104 line[length - 1] = '\0'; 105 status_prompt_add_history(line); 106 } else { 107 tmp = xmalloc(length + 1); 108 memcpy(tmp, line, length); 109 tmp[length] = '\0'; 110 status_prompt_add_history(tmp); 111 free(tmp); 112 } 113 } 114 } 115 fclose(f); 116} 117 118/* Save status prompt history to file. */ 119void 120status_prompt_save_history(void) 121{ 122 FILE *f; 123 u_int i; 124 char *history_file; 125 126 if ((history_file = status_prompt_find_history_file()) == NULL) 127 return; 128 log_debug("saving history to %s", history_file); 129 130 f = fopen(history_file, "w"); 131 if (f == NULL) { 132 log_debug("%s: %s", history_file, strerror(errno)); 133 free(history_file); 134 return; 135 } 136 free(history_file); 137 138 for (i = 0; i < status_prompt_hsize; i++) { 139 fputs(status_prompt_hlist[i], f); 140 fputc('\n', f); 141 } 142 fclose(f); 143 144} 145 146/* Status timer callback. */ 147static void 148status_timer_callback(__unused int fd, __unused short events, void *arg) 149{ 150 struct client *c = arg; 151 struct session *s = c->session; 152 struct timeval tv; 153 154 evtimer_del(&c->status_timer); 155 156 if (s == NULL) 157 return; 158 159 if (c->message_string == NULL && c->prompt_string == NULL) 160 c->flags |= CLIENT_STATUS; 161 162 timerclear(&tv); 163 tv.tv_sec = options_get_number(s->options, "status-interval"); 164 165 if (tv.tv_sec != 0) 166 evtimer_add(&c->status_timer, &tv); 167 log_debug("client %p, status interval %d", c, (int)tv.tv_sec); 168} 169 170/* Start status timer for client. */ 171void 172status_timer_start(struct client *c) 173{ 174 struct session *s = c->session; 175 176 if (event_initialized(&c->status_timer)) 177 evtimer_del(&c->status_timer); 178 else 179 evtimer_set(&c->status_timer, status_timer_callback, c); 180 181 if (s != NULL && options_get_number(s->options, "status")) 182 status_timer_callback(-1, 0, c); 183} 184 185/* Start status timer for all clients. */ 186void 187status_timer_start_all(void) 188{ 189 struct client *c; 190 191 TAILQ_FOREACH(c, &clients, entry) 192 status_timer_start(c); 193} 194 195/* Update status cache. */ 196void 197status_update_saved(struct session *s) 198{ 199 if (!options_get_number(s->options, "status")) 200 s->statusat = -1; 201 else if (options_get_number(s->options, "status-position") == 0) 202 s->statusat = 0; 203 else 204 s->statusat = 1; 205} 206 207/* Get screen line of status line. -1 means off. */ 208int 209status_at_line(struct client *c) 210{ 211 struct session *s = c->session; 212 213 if (c->flags & CLIENT_STATUSOFF) 214 return (-1); 215 if (s->statusat != 1) 216 return (s->statusat); 217 return (c->tty.sy - status_line_size(s)); 218} 219 220/* 221 * Get size of status line for session. 0 means off. Note that status line may 222 * be forced off for an individual client if it is too small (the 223 * CLIENT_STATUSOFF flag is set for this). 224 */ 225u_int 226status_line_size(struct session *s) 227{ 228 if (s->statusat == -1) 229 return (0); 230 return (1); 231} 232 233/* Retrieve options for left string. */ 234static char * 235status_redraw_get_left(struct client *c, time_t t, struct grid_cell *gc, 236 size_t *size) 237{ 238 struct session *s = c->session; 239 const char *template; 240 char *left; 241 size_t leftlen; 242 243 style_apply_update(gc, s->options, "status-left-style"); 244 245 template = options_get_string(s->options, "status-left"); 246 left = status_replace(c, NULL, template, t); 247 248 *size = options_get_number(s->options, "status-left-length"); 249 leftlen = screen_write_cstrlen("%s", left); 250 if (leftlen < *size) 251 *size = leftlen; 252 return (left); 253} 254 255/* Retrieve options for right string. */ 256static char * 257status_redraw_get_right(struct client *c, time_t t, struct grid_cell *gc, 258 size_t *size) 259{ 260 struct session *s = c->session; 261 const char *template; 262 char *right; 263 size_t rightlen; 264 265 style_apply_update(gc, s->options, "status-right-style"); 266 267 template = options_get_string(s->options, "status-right"); 268 right = status_replace(c, NULL, template, t); 269 270 *size = options_get_number(s->options, "status-right-length"); 271 rightlen = screen_write_cstrlen("%s", right); 272 if (rightlen < *size) 273 *size = rightlen; 274 return (right); 275} 276 277/* Get window at window list position. */ 278struct window * 279status_get_window_at(struct client *c, u_int x) 280{ 281 struct session *s = c->session; 282 struct winlink *wl; 283 struct options *oo; 284 const char *sep; 285 size_t seplen; 286 287 x += c->wlmouse; 288 RB_FOREACH(wl, winlinks, &s->windows) { 289 oo = wl->window->options; 290 291 sep = options_get_string(oo, "window-status-separator"); 292 seplen = screen_write_cstrlen("%s", sep); 293 294 if (x < wl->status_width) 295 return (wl->window); 296 x -= wl->status_width + seplen; 297 } 298 return (NULL); 299} 300 301/* Draw status for client on the last lines of given context. */ 302int 303status_redraw(struct client *c) 304{ 305 struct screen_write_ctx ctx; 306 struct session *s = c->session; 307 struct winlink *wl; 308 struct screen old_status, window_list; 309 struct grid_cell stdgc, lgc, rgc, gc; 310 struct options *oo; 311 time_t t; 312 char *left, *right; 313 const char *sep; 314 u_int offset, needed, lines; 315 u_int wlstart, wlwidth, wlavailable, wloffset, wlsize; 316 size_t llen, rlen, seplen; 317 int larrow, rarrow; 318 319 /* Delete the saved status line, if any. */ 320 if (c->old_status != NULL) { 321 screen_free(c->old_status); 322 free(c->old_status); 323 c->old_status = NULL; 324 } 325 326 /* No status line? */ 327 lines = status_line_size(s); 328 if (c->tty.sy == 0 || lines == 0) 329 return (1); 330 left = right = NULL; 331 larrow = rarrow = 0; 332 333 /* Store current time. */ 334 t = time(NULL); 335 336 /* Set up default colour. */ 337 style_apply(&stdgc, s->options, "status-style"); 338 339 /* Create the target screen. */ 340 memcpy(&old_status, &c->status, sizeof old_status); 341 screen_init(&c->status, c->tty.sx, lines, 0); 342 screen_write_start(&ctx, NULL, &c->status); 343 for (offset = 0; offset < lines * c->tty.sx; offset++) 344 screen_write_putc(&ctx, &stdgc, ' '); 345 screen_write_stop(&ctx); 346 347 /* If the height is too small, blank status line. */ 348 if (c->tty.sy < lines) 349 goto out; 350 351 /* Work out left and right strings. */ 352 memcpy(&lgc, &stdgc, sizeof lgc); 353 left = status_redraw_get_left(c, t, &lgc, &llen); 354 memcpy(&rgc, &stdgc, sizeof rgc); 355 right = status_redraw_get_right(c, t, &rgc, &rlen); 356 357 /* 358 * Figure out how much space we have for the window list. If there 359 * isn't enough space, just show a blank status line. 360 */ 361 needed = 0; 362 if (llen != 0) 363 needed += llen; 364 if (rlen != 0) 365 needed += rlen; 366 if (c->tty.sx == 0 || c->tty.sx <= needed) 367 goto out; 368 wlavailable = c->tty.sx - needed; 369 370 /* Calculate the total size needed for the window list. */ 371 wlstart = wloffset = wlwidth = 0; 372 RB_FOREACH(wl, winlinks, &s->windows) { 373 free(wl->status_text); 374 memcpy(&wl->status_cell, &stdgc, sizeof wl->status_cell); 375 wl->status_text = status_print(c, wl, t, &wl->status_cell); 376 wl->status_width = screen_write_cstrlen("%s", wl->status_text); 377 378 if (wl == s->curw) 379 wloffset = wlwidth; 380 381 oo = wl->window->options; 382 sep = options_get_string(oo, "window-status-separator"); 383 seplen = screen_write_cstrlen("%s", sep); 384 wlwidth += wl->status_width + seplen; 385 } 386 387 /* Create a new screen for the window list. */ 388 screen_init(&window_list, wlwidth, 1, 0); 389 390 /* And draw the window list into it. */ 391 screen_write_start(&ctx, NULL, &window_list); 392 RB_FOREACH(wl, winlinks, &s->windows) { 393 screen_write_cnputs(&ctx, -1, &wl->status_cell, "%s", 394 wl->status_text); 395 396 oo = wl->window->options; 397 sep = options_get_string(oo, "window-status-separator"); 398 screen_write_cnputs(&ctx, -1, &stdgc, "%s", sep); 399 } 400 screen_write_stop(&ctx); 401 402 /* If there is enough space for the total width, skip to draw now. */ 403 if (wlwidth <= wlavailable) 404 goto draw; 405 406 /* Find size of current window text. */ 407 wlsize = s->curw->status_width; 408 409 /* 410 * If the current window is already on screen, good to draw from the 411 * start and just leave off the end. 412 */ 413 if (wloffset + wlsize < wlavailable) { 414 if (wlavailable > 0) { 415 rarrow = 1; 416 wlavailable--; 417 } 418 wlwidth = wlavailable; 419 } else { 420 /* 421 * Work out how many characters we need to omit from the 422 * start. There are wlavailable characters to fill, and 423 * wloffset + wlsize must be the last. So, the start character 424 * is wloffset + wlsize - wlavailable. 425 */ 426 if (wlavailable > 0) { 427 larrow = 1; 428 wlavailable--; 429 } 430 431 wlstart = wloffset + wlsize - wlavailable; 432 if (wlavailable > 0 && wlwidth > wlstart + wlavailable + 1) { 433 rarrow = 1; 434 wlstart++; 435 wlavailable--; 436 } 437 wlwidth = wlavailable; 438 } 439 440 /* Bail if anything is now too small too. */ 441 if (wlwidth == 0 || wlavailable == 0) { 442 screen_free(&window_list); 443 goto out; 444 } 445 446 /* 447 * Now the start position is known, work out the state of the left and 448 * right arrows. 449 */ 450 offset = 0; 451 RB_FOREACH(wl, winlinks, &s->windows) { 452 if (wl->flags & WINLINK_ALERTFLAGS && 453 larrow == 1 && offset < wlstart) 454 larrow = -1; 455 456 offset += wl->status_width; 457 458 if (wl->flags & WINLINK_ALERTFLAGS && 459 rarrow == 1 && offset > wlstart + wlwidth) 460 rarrow = -1; 461 } 462 463draw: 464 /* Begin drawing. */ 465 screen_write_start(&ctx, NULL, &c->status); 466 467 /* Draw the left string and arrow. */ 468 screen_write_cursormove(&ctx, 0, 0); 469 if (llen != 0) 470 screen_write_cnputs(&ctx, llen, &lgc, "%s", left); 471 if (larrow != 0) { 472 memcpy(&gc, &stdgc, sizeof gc); 473 if (larrow == -1) 474 gc.attr ^= GRID_ATTR_REVERSE; 475 screen_write_putc(&ctx, &gc, '<'); 476 } 477 478 /* Draw the right string and arrow. */ 479 if (rarrow != 0) { 480 screen_write_cursormove(&ctx, c->tty.sx - rlen - 1, 0); 481 memcpy(&gc, &stdgc, sizeof gc); 482 if (rarrow == -1) 483 gc.attr ^= GRID_ATTR_REVERSE; 484 screen_write_putc(&ctx, &gc, '>'); 485 } else 486 screen_write_cursormove(&ctx, c->tty.sx - rlen, 0); 487 if (rlen != 0) 488 screen_write_cnputs(&ctx, rlen, &rgc, "%s", right); 489 490 /* Figure out the offset for the window list. */ 491 if (llen != 0) 492 wloffset = llen; 493 else 494 wloffset = 0; 495 if (wlwidth < wlavailable) { 496 switch (options_get_number(s->options, "status-justify")) { 497 case 1: /* centred */ 498 wloffset += (wlavailable - wlwidth) / 2; 499 break; 500 case 2: /* right */ 501 wloffset += (wlavailable - wlwidth); 502 break; 503 } 504 } 505 if (larrow != 0) 506 wloffset++; 507 508 /* Copy the window list. */ 509 c->wlmouse = -wloffset + wlstart; 510 screen_write_cursormove(&ctx, wloffset, 0); 511 screen_write_fast_copy(&ctx, &window_list, wlstart, 0, wlwidth, 1); 512 screen_free(&window_list); 513 514 screen_write_stop(&ctx); 515 516out: 517 free(left); 518 free(right); 519 520 if (grid_compare(c->status.grid, old_status.grid) == 0) { 521 screen_free(&old_status); 522 return (0); 523 } 524 screen_free(&old_status); 525 return (1); 526} 527 528/* Replace special sequences in fmt. */ 529static char * 530status_replace(struct client *c, struct winlink *wl, const char *fmt, time_t t) 531{ 532 struct format_tree *ft; 533 char *expanded; 534 u_int tag; 535 536 if (fmt == NULL) 537 return (xstrdup("")); 538 539 if (wl != NULL) 540 tag = FORMAT_WINDOW|wl->window->id; 541 else 542 tag = FORMAT_NONE; 543 if (c->flags & CLIENT_STATUSFORCE) 544 ft = format_create(c, NULL, tag, FORMAT_STATUS|FORMAT_FORCE); 545 else 546 ft = format_create(c, NULL, tag, FORMAT_STATUS); 547 format_defaults(ft, c, NULL, wl, NULL); 548 549 expanded = format_expand_time(ft, fmt, t); 550 551 format_free(ft); 552 return (expanded); 553} 554 555/* Return winlink status line entry and adjust gc as necessary. */ 556static char * 557status_print(struct client *c, struct winlink *wl, time_t t, 558 struct grid_cell *gc) 559{ 560 struct options *oo = wl->window->options; 561 struct session *s = c->session; 562 const char *fmt; 563 char *text; 564 565 style_apply_update(gc, oo, "window-status-style"); 566 fmt = options_get_string(oo, "window-status-format"); 567 if (wl == s->curw) { 568 style_apply_update(gc, oo, "window-status-current-style"); 569 fmt = options_get_string(oo, "window-status-current-format"); 570 } 571 if (wl == TAILQ_FIRST(&s->lastw)) 572 style_apply_update(gc, oo, "window-status-last-style"); 573 574 if (wl->flags & WINLINK_BELL) 575 style_apply_update(gc, oo, "window-status-bell-style"); 576 else if (wl->flags & (WINLINK_ACTIVITY|WINLINK_SILENCE)) 577 style_apply_update(gc, oo, "window-status-activity-style"); 578 579 text = status_replace(c, wl, fmt, t); 580 return (text); 581} 582 583/* Set a status line message. */ 584void 585status_message_set(struct client *c, const char *fmt, ...) 586{ 587 struct timeval tv; 588 va_list ap; 589 int delay; 590 591 status_message_clear(c); 592 593 if (c->old_status == NULL) { 594 c->old_status = xmalloc(sizeof *c->old_status); 595 memcpy(c->old_status, &c->status, sizeof *c->old_status); 596 screen_init(&c->status, c->tty.sx, 1, 0); 597 } 598 599 va_start(ap, fmt); 600 xvasprintf(&c->message_string, fmt, ap); 601 va_end(ap); 602 603 server_client_add_message(c, "%s", c->message_string); 604 605 delay = options_get_number(c->session->options, "display-time"); 606 if (delay > 0) { 607 tv.tv_sec = delay / 1000; 608 tv.tv_usec = (delay % 1000) * 1000L; 609 610 if (event_initialized(&c->message_timer)) 611 evtimer_del(&c->message_timer); 612 evtimer_set(&c->message_timer, status_message_callback, c); 613 evtimer_add(&c->message_timer, &tv); 614 } 615 616 c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE); 617 c->flags |= CLIENT_STATUS; 618} 619 620/* Clear status line message. */ 621void 622status_message_clear(struct client *c) 623{ 624 if (c->message_string == NULL) 625 return; 626 627 free(c->message_string); 628 c->message_string = NULL; 629 630 if (c->prompt_string == NULL) 631 c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE); 632 c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */ 633 634 screen_reinit(&c->status); 635} 636 637/* Clear status line message after timer expires. */ 638static void 639status_message_callback(__unused int fd, __unused short event, void *data) 640{ 641 struct client *c = data; 642 643 status_message_clear(c); 644} 645 646/* Draw client message on status line of present else on last line. */ 647int 648status_message_redraw(struct client *c) 649{ 650 struct screen_write_ctx ctx; 651 struct session *s = c->session; 652 struct screen old_status; 653 size_t len; 654 struct grid_cell gc; 655 u_int lines, offset; 656 657 if (c->tty.sx == 0 || c->tty.sy == 0) 658 return (0); 659 memcpy(&old_status, &c->status, sizeof old_status); 660 661 lines = status_line_size(c->session); 662 if (lines <= 1) 663 screen_init(&c->status, c->tty.sx, 1, 0); 664 else 665 screen_init(&c->status, c->tty.sx, lines, 0); 666 667 len = screen_write_strlen("%s", c->message_string); 668 if (len > c->tty.sx) 669 len = c->tty.sx; 670 671 style_apply(&gc, s->options, "message-style"); 672 673 screen_write_start(&ctx, NULL, &c->status); 674 screen_write_cursormove(&ctx, 0, 0); 675 for (offset = 0; offset < lines * c->tty.sx; offset++) 676 screen_write_putc(&ctx, &gc, ' '); 677 screen_write_cursormove(&ctx, 0, lines - 1); 678 screen_write_nputs(&ctx, len, &gc, "%s", c->message_string); 679 screen_write_stop(&ctx); 680 681 if (grid_compare(c->status.grid, old_status.grid) == 0) { 682 screen_free(&old_status); 683 return (0); 684 } 685 screen_free(&old_status); 686 return (1); 687} 688 689/* Enable status line prompt. */ 690void 691status_prompt_set(struct client *c, const char *msg, const char *input, 692 prompt_input_cb inputcb, prompt_free_cb freecb, void *data, int flags) 693{ 694 struct format_tree *ft; 695 time_t t; 696 char *tmp, *cp; 697 698 ft = format_create(c, NULL, FORMAT_NONE, 0); 699 format_defaults(ft, c, NULL, NULL, NULL); 700 t = time(NULL); 701 702 if (input == NULL) 703 input = ""; 704 if (flags & PROMPT_NOFORMAT) 705 tmp = xstrdup(input); 706 else 707 tmp = format_expand_time(ft, input, t); 708 709 status_message_clear(c); 710 status_prompt_clear(c); 711 712 if (c->old_status == NULL) { 713 c->old_status = xmalloc(sizeof *c->old_status); 714 memcpy(c->old_status, &c->status, sizeof *c->old_status); 715 screen_init(&c->status, c->tty.sx, 1, 0); 716 } 717 718 c->prompt_string = format_expand_time(ft, msg, t); 719 720 c->prompt_buffer = utf8_fromcstr(tmp); 721 c->prompt_index = utf8_strlen(c->prompt_buffer); 722 723 c->prompt_inputcb = inputcb; 724 c->prompt_freecb = freecb; 725 c->prompt_data = data; 726 727 c->prompt_hindex = 0; 728 729 c->prompt_flags = flags; 730 c->prompt_mode = PROMPT_ENTRY; 731 732 if (~flags & PROMPT_INCREMENTAL) 733 c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE); 734 c->flags |= CLIENT_STATUS; 735 736 if ((flags & PROMPT_INCREMENTAL) && *tmp != '\0') { 737 xasprintf(&cp, "=%s", tmp); 738 c->prompt_inputcb(c, c->prompt_data, cp, 0); 739 free(cp); 740 } 741 742 free(tmp); 743 format_free(ft); 744} 745 746/* Remove status line prompt. */ 747void 748status_prompt_clear(struct client *c) 749{ 750 if (c->prompt_string == NULL) 751 return; 752 753 if (c->prompt_freecb != NULL && c->prompt_data != NULL) 754 c->prompt_freecb(c->prompt_data); 755 756 free(c->prompt_string); 757 c->prompt_string = NULL; 758 759 free(c->prompt_buffer); 760 c->prompt_buffer = NULL; 761 762 c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE); 763 c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */ 764 765 screen_reinit(&c->status); 766} 767 768/* Update status line prompt with a new prompt string. */ 769void 770status_prompt_update(struct client *c, const char *msg, const char *input) 771{ 772 struct format_tree *ft; 773 time_t t; 774 char *tmp; 775 776 ft = format_create(c, NULL, FORMAT_NONE, 0); 777 format_defaults(ft, c, NULL, NULL, NULL); 778 779 t = time(NULL); 780 tmp = format_expand_time(ft, input, t); 781 782 free(c->prompt_string); 783 c->prompt_string = format_expand_time(ft, msg, t); 784 785 free(c->prompt_buffer); 786 c->prompt_buffer = utf8_fromcstr(tmp); 787 c->prompt_index = utf8_strlen(c->prompt_buffer); 788 789 c->prompt_hindex = 0; 790 791 c->flags |= CLIENT_STATUS; 792 793 free(tmp); 794 format_free(ft); 795} 796 797/* Draw client prompt on status line of present else on last line. */ 798int 799status_prompt_redraw(struct client *c) 800{ 801 struct screen_write_ctx ctx; 802 struct session *s = c->session; 803 struct screen old_status; 804 u_int i, offset, left, start, pcursor, pwidth, width; 805 u_int lines; 806 size_t len, off; 807 struct grid_cell gc, cursorgc; 808 809 if (c->tty.sx == 0 || c->tty.sy == 0) 810 return (0); 811 memcpy(&old_status, &c->status, sizeof old_status); 812 813 lines = status_line_size(c->session); 814 if (lines <= 1) 815 screen_init(&c->status, c->tty.sx, 1, 0); 816 else 817 screen_init(&c->status, c->tty.sx, lines, 0); 818 819 len = screen_write_strlen("%s", c->prompt_string); 820 if (len > c->tty.sx) 821 len = c->tty.sx; 822 off = 0; 823 824 if (c->prompt_mode == PROMPT_COMMAND) 825 style_apply(&gc, s->options, "message-command-style"); 826 else 827 style_apply(&gc, s->options, "message-style"); 828 829 memcpy(&cursorgc, &gc, sizeof cursorgc); 830 cursorgc.attr ^= GRID_ATTR_REVERSE; 831 832 start = screen_write_strlen("%s", c->prompt_string); 833 if (start > c->tty.sx) 834 start = c->tty.sx; 835 836 screen_write_start(&ctx, NULL, &c->status); 837 screen_write_cursormove(&ctx, 0, 0); 838 for (offset = 0; offset < lines * c->tty.sx; offset++) 839 screen_write_putc(&ctx, &gc, ' '); 840 screen_write_cursormove(&ctx, 0, 0); 841 screen_write_nputs(&ctx, start, &gc, "%s", c->prompt_string); 842 screen_write_cursormove(&ctx, start, 0); 843 844 left = c->tty.sx - start; 845 if (left == 0) 846 goto finished; 847 848 pcursor = utf8_strwidth(c->prompt_buffer, c->prompt_index); 849 pwidth = utf8_strwidth(c->prompt_buffer, -1); 850 if (pcursor >= left) { 851 /* 852 * The cursor would be outside the screen so start drawing 853 * with it on the right. 854 */ 855 offset = (pcursor - left) + 1; 856 pwidth = left; 857 } else 858 offset = 0; 859 if (pwidth > left) 860 pwidth = left; 861 862 width = 0; 863 for (i = 0; c->prompt_buffer[i].size != 0; i++) { 864 if (width < offset) { 865 width += c->prompt_buffer[i].width; 866 continue; 867 } 868 if (width >= offset + pwidth) 869 break; 870 width += c->prompt_buffer[i].width; 871 if (width > offset + pwidth) 872 break; 873 874 if (i != c->prompt_index) { 875 utf8_copy(&gc.data, &c->prompt_buffer[i]); 876 screen_write_cell(&ctx, &gc); 877 } else { 878 utf8_copy(&cursorgc.data, &c->prompt_buffer[i]); 879 screen_write_cell(&ctx, &cursorgc); 880 } 881 } 882 if (c->status.cx < screen_size_x(&c->status) && c->prompt_index >= i) 883 screen_write_putc(&ctx, &cursorgc, ' '); 884 885finished: 886 screen_write_stop(&ctx); 887 888 if (grid_compare(c->status.grid, old_status.grid) == 0) { 889 screen_free(&old_status); 890 return (0); 891 } 892 screen_free(&old_status); 893 return (1); 894} 895 896/* Is this a separator? */ 897static int 898status_prompt_in_list(const char *ws, const struct utf8_data *ud) 899{ 900 if (ud->size != 1 || ud->width != 1) 901 return (0); 902 return (strchr(ws, *ud->data) != NULL); 903} 904 905/* Is this a space? */ 906static int 907status_prompt_space(const struct utf8_data *ud) 908{ 909 if (ud->size != 1 || ud->width != 1) 910 return (0); 911 return (*ud->data == ' '); 912} 913 914/* 915 * Translate key from emacs to vi. Return 0 to drop key, 1 to process the key 916 * as an emacs key; return 2 to append to the buffer. 917 */ 918static int 919status_prompt_translate_key(struct client *c, key_code key, key_code *new_key) 920{ 921 if (c->prompt_mode == PROMPT_ENTRY) { 922 switch (key) { 923 case '\003': /* C-c */ 924 case '\010': /* C-h */ 925 case '\011': /* Tab */ 926 case '\025': /* C-u */ 927 case '\027': /* C-w */ 928 case '\n': 929 case '\r': 930 case KEYC_BSPACE: 931 case KEYC_DC: 932 case KEYC_DOWN: 933 case KEYC_END: 934 case KEYC_HOME: 935 case KEYC_LEFT: 936 case KEYC_RIGHT: 937 case KEYC_UP: 938 *new_key = key; 939 return (1); 940 case '\033': /* Escape */ 941 c->prompt_mode = PROMPT_COMMAND; 942 c->flags |= CLIENT_STATUS; 943 return (0); 944 } 945 *new_key = key; 946 return (2); 947 } 948 949 switch (key) { 950 case 'A': 951 case 'I': 952 case 'C': 953 case 's': 954 case 'a': 955 c->prompt_mode = PROMPT_ENTRY; 956 c->flags |= CLIENT_STATUS; 957 break; /* switch mode and... */ 958 case 'S': 959 c->prompt_mode = PROMPT_ENTRY; 960 c->flags |= CLIENT_STATUS; 961 *new_key = '\025'; /* C-u */ 962 return (1); 963 case 'i': 964 case '\033': /* Escape */ 965 c->prompt_mode = PROMPT_ENTRY; 966 c->flags |= CLIENT_STATUS; 967 return (0); 968 } 969 970 switch (key) { 971 case 'A': 972 case '$': 973 *new_key = KEYC_END; 974 return (1); 975 case 'I': 976 case '0': 977 case '^': 978 *new_key = KEYC_HOME; 979 return (1); 980 case 'C': 981 case 'D': 982 *new_key = '\013'; /* C-k */ 983 return (1); 984 case KEYC_BSPACE: 985 case 'X': 986 *new_key = KEYC_BSPACE; 987 return (1); 988 case 'b': 989 case 'B': 990 *new_key = 'b'|KEYC_ESCAPE; 991 return (1); 992 case 'd': 993 *new_key = '\025'; 994 return (1); 995 case 'e': 996 case 'E': 997 case 'w': 998 case 'W': 999 *new_key = 'f'|KEYC_ESCAPE; 1000 return (1); 1001 case 'p': 1002 *new_key = '\031'; /* C-y */ 1003 return (1); 1004 case 's': 1005 case KEYC_DC: 1006 case 'x': 1007 *new_key = KEYC_DC; 1008 return (1); 1009 case KEYC_DOWN: 1010 case 'j': 1011 *new_key = KEYC_DOWN; 1012 return (1); 1013 case KEYC_LEFT: 1014 case 'h': 1015 *new_key = KEYC_LEFT; 1016 return (1); 1017 case 'a': 1018 case KEYC_RIGHT: 1019 case 'l': 1020 *new_key = KEYC_RIGHT; 1021 return (1); 1022 case KEYC_UP: 1023 case 'k': 1024 *new_key = KEYC_UP; 1025 return (1); 1026 case '\010' /* C-h */: 1027 case '\003' /* C-c */: 1028 case '\n': 1029 case '\r': 1030 return (1); 1031 } 1032 return (0); 1033} 1034 1035/* Handle keys in prompt. */ 1036int 1037status_prompt_key(struct client *c, key_code key) 1038{ 1039 struct options *oo = c->session->options; 1040 struct paste_buffer *pb; 1041 char *s, *cp, word[64], prefix = '='; 1042 const char *histstr, *bufdata, *ws = NULL; 1043 u_char ch; 1044 size_t size, n, off, idx, bufsize, used; 1045 struct utf8_data tmp, *first, *last, *ud; 1046 int keys; 1047 1048 size = utf8_strlen(c->prompt_buffer); 1049 1050 if (c->prompt_flags & PROMPT_NUMERIC) { 1051 if (key >= '0' && key <= '9') 1052 goto append_key; 1053 s = utf8_tocstr(c->prompt_buffer); 1054 c->prompt_inputcb(c, c->prompt_data, s, 1); 1055 status_prompt_clear(c); 1056 free(s); 1057 return (1); 1058 } 1059 1060 keys = options_get_number(c->session->options, "status-keys"); 1061 if (keys == MODEKEY_VI) { 1062 switch (status_prompt_translate_key(c, key, &key)) { 1063 case 1: 1064 goto process_key; 1065 case 2: 1066 goto append_key; 1067 default: 1068 return (0); 1069 } 1070 } 1071 1072process_key: 1073 switch (key) { 1074 case KEYC_LEFT: 1075 case '\002': /* C-b */ 1076 if (c->prompt_index > 0) { 1077 c->prompt_index--; 1078 break; 1079 } 1080 break; 1081 case KEYC_RIGHT: 1082 case '\006': /* C-f */ 1083 if (c->prompt_index < size) { 1084 c->prompt_index++; 1085 break; 1086 } 1087 break; 1088 case KEYC_HOME: 1089 case '\001': /* C-a */ 1090 if (c->prompt_index != 0) { 1091 c->prompt_index = 0; 1092 break; 1093 } 1094 break; 1095 case KEYC_END: 1096 case '\005': /* C-e */ 1097 if (c->prompt_index != size) { 1098 c->prompt_index = size; 1099 break; 1100 } 1101 break; 1102 case '\011': /* Tab */ 1103 if (c->prompt_buffer[0].size == 0) 1104 break; 1105 1106 idx = c->prompt_index; 1107 if (idx != 0) 1108 idx--; 1109 1110 /* Find the word we are in. */ 1111 first = &c->prompt_buffer[idx]; 1112 while (first > c->prompt_buffer && !status_prompt_space(first)) 1113 first--; 1114 while (first->size != 0 && status_prompt_space(first)) 1115 first++; 1116 last = &c->prompt_buffer[idx]; 1117 while (last->size != 0 && !status_prompt_space(last)) 1118 last++; 1119 while (last > c->prompt_buffer && status_prompt_space(last)) 1120 last--; 1121 if (last->size != 0) 1122 last++; 1123 if (last <= first) 1124 break; 1125 1126 used = 0; 1127 for (ud = first; ud < last; ud++) { 1128 if (used + ud->size >= sizeof word) 1129 break; 1130 memcpy(word + used, ud->data, ud->size); 1131 used += ud->size; 1132 } 1133 if (ud != last) 1134 break; 1135 word[used] = '\0'; 1136 1137 /* And try to complete it. */ 1138 if ((s = status_prompt_complete(c->session, word)) == NULL) 1139 break; 1140 1141 /* Trim out word. */ 1142 n = size - (last - c->prompt_buffer) + 1; /* with \0 */ 1143 memmove(first, last, n * sizeof *c->prompt_buffer); 1144 size -= last - first; 1145 1146 /* Insert the new word. */ 1147 size += strlen(s); 1148 off = first - c->prompt_buffer; 1149 c->prompt_buffer = xreallocarray(c->prompt_buffer, size + 1, 1150 sizeof *c->prompt_buffer); 1151 first = c->prompt_buffer + off; 1152 memmove(first + strlen(s), first, n * sizeof *c->prompt_buffer); 1153 for (idx = 0; idx < strlen(s); idx++) 1154 utf8_set(&first[idx], s[idx]); 1155 1156 c->prompt_index = (first - c->prompt_buffer) + strlen(s); 1157 free(s); 1158 1159 goto changed; 1160 case KEYC_BSPACE: 1161 case '\010': /* C-h */ 1162 if (c->prompt_index != 0) { 1163 if (c->prompt_index == size) 1164 c->prompt_buffer[--c->prompt_index].size = 0; 1165 else { 1166 memmove(c->prompt_buffer + c->prompt_index - 1, 1167 c->prompt_buffer + c->prompt_index, 1168 (size + 1 - c->prompt_index) * 1169 sizeof *c->prompt_buffer); 1170 c->prompt_index--; 1171 } 1172 goto changed; 1173 } 1174 break; 1175 case KEYC_DC: 1176 case '\004': /* C-d */ 1177 if (c->prompt_index != size) { 1178 memmove(c->prompt_buffer + c->prompt_index, 1179 c->prompt_buffer + c->prompt_index + 1, 1180 (size + 1 - c->prompt_index) * 1181 sizeof *c->prompt_buffer); 1182 goto changed; 1183 } 1184 break; 1185 case '\025': /* C-u */ 1186 c->prompt_buffer[0].size = 0; 1187 c->prompt_index = 0; 1188 goto changed; 1189 case '\013': /* C-k */ 1190 if (c->prompt_index < size) { 1191 c->prompt_buffer[c->prompt_index].size = 0; 1192 goto changed; 1193 } 1194 break; 1195 case '\027': /* C-w */ 1196 ws = options_get_string(oo, "word-separators"); 1197 idx = c->prompt_index; 1198 1199 /* Find a non-separator. */ 1200 while (idx != 0) { 1201 idx--; 1202 if (!status_prompt_in_list(ws, &c->prompt_buffer[idx])) 1203 break; 1204 } 1205 1206 /* Find the separator at the beginning of the word. */ 1207 while (idx != 0) { 1208 idx--; 1209 if (status_prompt_in_list(ws, &c->prompt_buffer[idx])) { 1210 /* Go back to the word. */ 1211 idx++; 1212 break; 1213 } 1214 } 1215 1216 memmove(c->prompt_buffer + idx, 1217 c->prompt_buffer + c->prompt_index, 1218 (size + 1 - c->prompt_index) * 1219 sizeof *c->prompt_buffer); 1220 memset(c->prompt_buffer + size - (c->prompt_index - idx), 1221 '\0', (c->prompt_index - idx) * sizeof *c->prompt_buffer); 1222 c->prompt_index = idx; 1223 1224 goto changed; 1225 case 'f'|KEYC_ESCAPE: 1226 ws = options_get_string(oo, "word-separators"); 1227 1228 /* Find a word. */ 1229 while (c->prompt_index != size) { 1230 idx = ++c->prompt_index; 1231 if (!status_prompt_in_list(ws, &c->prompt_buffer[idx])) 1232 break; 1233 } 1234 1235 /* Find the separator at the end of the word. */ 1236 while (c->prompt_index != size) { 1237 idx = ++c->prompt_index; 1238 if (status_prompt_in_list(ws, &c->prompt_buffer[idx])) 1239 break; 1240 } 1241 1242 /* Back up to the end-of-word like vi. */ 1243 if (options_get_number(oo, "status-keys") == MODEKEY_VI && 1244 c->prompt_index != 0) 1245 c->prompt_index--; 1246 1247 goto changed; 1248 case 'b'|KEYC_ESCAPE: 1249 ws = options_get_string(oo, "word-separators"); 1250 1251 /* Find a non-separator. */ 1252 while (c->prompt_index != 0) { 1253 idx = --c->prompt_index; 1254 if (!status_prompt_in_list(ws, &c->prompt_buffer[idx])) 1255 break; 1256 } 1257 1258 /* Find the separator at the beginning of the word. */ 1259 while (c->prompt_index != 0) { 1260 idx = --c->prompt_index; 1261 if (status_prompt_in_list(ws, &c->prompt_buffer[idx])) { 1262 /* Go back to the word. */ 1263 c->prompt_index++; 1264 break; 1265 } 1266 } 1267 goto changed; 1268 case KEYC_UP: 1269 case '\020': /* C-p */ 1270 histstr = status_prompt_up_history(&c->prompt_hindex); 1271 if (histstr == NULL) 1272 break; 1273 free(c->prompt_buffer); 1274 c->prompt_buffer = utf8_fromcstr(histstr); 1275 c->prompt_index = utf8_strlen(c->prompt_buffer); 1276 goto changed; 1277 case KEYC_DOWN: 1278 case '\016': /* C-n */ 1279 histstr = status_prompt_down_history(&c->prompt_hindex); 1280 if (histstr == NULL) 1281 break; 1282 free(c->prompt_buffer); 1283 c->prompt_buffer = utf8_fromcstr(histstr); 1284 c->prompt_index = utf8_strlen(c->prompt_buffer); 1285 goto changed; 1286 case '\031': /* C-y */ 1287 if ((pb = paste_get_top(NULL)) == NULL) 1288 break; 1289 bufdata = paste_buffer_data(pb, &bufsize); 1290 for (n = 0; n < bufsize; n++) { 1291 ch = (u_char)bufdata[n]; 1292 if (ch < 32 || ch >= 127) 1293 break; 1294 } 1295 1296 c->prompt_buffer = xreallocarray(c->prompt_buffer, size + n + 1, 1297 sizeof *c->prompt_buffer); 1298 if (c->prompt_index == size) { 1299 for (idx = 0; idx < n; idx++) { 1300 ud = &c->prompt_buffer[c->prompt_index + idx]; 1301 utf8_set(ud, bufdata[idx]); 1302 } 1303 c->prompt_index += n; 1304 c->prompt_buffer[c->prompt_index].size = 0; 1305 } else { 1306 memmove(c->prompt_buffer + c->prompt_index + n, 1307 c->prompt_buffer + c->prompt_index, 1308 (size + 1 - c->prompt_index) * 1309 sizeof *c->prompt_buffer); 1310 for (idx = 0; idx < n; idx++) { 1311 ud = &c->prompt_buffer[c->prompt_index + idx]; 1312 utf8_set(ud, bufdata[idx]); 1313 } 1314 c->prompt_index += n; 1315 } 1316 goto changed; 1317 case '\024': /* C-t */ 1318 idx = c->prompt_index; 1319 if (idx < size) 1320 idx++; 1321 if (idx >= 2) { 1322 utf8_copy(&tmp, &c->prompt_buffer[idx - 2]); 1323 utf8_copy(&c->prompt_buffer[idx - 2], 1324 &c->prompt_buffer[idx - 1]); 1325 utf8_copy(&c->prompt_buffer[idx - 1], &tmp); 1326 c->prompt_index = idx; 1327 goto changed; 1328 } 1329 break; 1330 case '\r': 1331 case '\n': 1332 s = utf8_tocstr(c->prompt_buffer); 1333 if (*s != '\0') 1334 status_prompt_add_history(s); 1335 if (c->prompt_inputcb(c, c->prompt_data, s, 1) == 0) 1336 status_prompt_clear(c); 1337 free(s); 1338 break; 1339 case '\033': /* Escape */ 1340 case '\003': /* C-c */ 1341 if (c->prompt_inputcb(c, c->prompt_data, NULL, 1) == 0) 1342 status_prompt_clear(c); 1343 break; 1344 case '\022': /* C-r */ 1345 if (c->prompt_flags & PROMPT_INCREMENTAL) { 1346 prefix = '-'; 1347 goto changed; 1348 } 1349 break; 1350 case '\023': /* C-s */ 1351 if (c->prompt_flags & PROMPT_INCREMENTAL) { 1352 prefix = '+'; 1353 goto changed; 1354 } 1355 break; 1356 default: 1357 goto append_key; 1358 } 1359 1360 c->flags |= CLIENT_STATUS; 1361 return (0); 1362 1363append_key: 1364 if (key <= 0x1f || key >= KEYC_BASE) 1365 return (0); 1366 if (utf8_split(key, &tmp) != UTF8_DONE) 1367 return (0); 1368 1369 c->prompt_buffer = xreallocarray(c->prompt_buffer, size + 2, 1370 sizeof *c->prompt_buffer); 1371 1372 if (c->prompt_index == size) { 1373 utf8_copy(&c->prompt_buffer[c->prompt_index], &tmp); 1374 c->prompt_index++; 1375 c->prompt_buffer[c->prompt_index].size = 0; 1376 } else { 1377 memmove(c->prompt_buffer + c->prompt_index + 1, 1378 c->prompt_buffer + c->prompt_index, 1379 (size + 1 - c->prompt_index) * 1380 sizeof *c->prompt_buffer); 1381 utf8_copy(&c->prompt_buffer[c->prompt_index], &tmp); 1382 c->prompt_index++; 1383 } 1384 1385 if (c->prompt_flags & PROMPT_SINGLE) { 1386 s = utf8_tocstr(c->prompt_buffer); 1387 if (strlen(s) != 1) 1388 status_prompt_clear(c); 1389 else if (c->prompt_inputcb(c, c->prompt_data, s, 1) == 0) 1390 status_prompt_clear(c); 1391 free(s); 1392 } 1393 1394changed: 1395 c->flags |= CLIENT_STATUS; 1396 if (c->prompt_flags & PROMPT_INCREMENTAL) { 1397 s = utf8_tocstr(c->prompt_buffer); 1398 xasprintf(&cp, "%c%s", prefix, s); 1399 c->prompt_inputcb(c, c->prompt_data, cp, 0); 1400 free(cp); 1401 free(s); 1402 } 1403 return (0); 1404} 1405 1406/* Get previous line from the history. */ 1407static const char * 1408status_prompt_up_history(u_int *idx) 1409{ 1410 /* 1411 * History runs from 0 to size - 1. Index is from 0 to size. Zero is 1412 * empty. 1413 */ 1414 1415 if (status_prompt_hsize == 0 || *idx == status_prompt_hsize) 1416 return (NULL); 1417 (*idx)++; 1418 return (status_prompt_hlist[status_prompt_hsize - *idx]); 1419} 1420 1421/* Get next line from the history. */ 1422static const char * 1423status_prompt_down_history(u_int *idx) 1424{ 1425 if (status_prompt_hsize == 0 || *idx == 0) 1426 return (""); 1427 (*idx)--; 1428 if (*idx == 0) 1429 return (""); 1430 return (status_prompt_hlist[status_prompt_hsize - *idx]); 1431} 1432 1433/* Add line to the history. */ 1434static void 1435status_prompt_add_history(const char *line) 1436{ 1437 size_t size; 1438 1439 if (status_prompt_hsize > 0 && 1440 strcmp(status_prompt_hlist[status_prompt_hsize - 1], line) == 0) 1441 return; 1442 1443 if (status_prompt_hsize == PROMPT_HISTORY) { 1444 free(status_prompt_hlist[0]); 1445 1446 size = (PROMPT_HISTORY - 1) * sizeof *status_prompt_hlist; 1447 memmove(&status_prompt_hlist[0], &status_prompt_hlist[1], size); 1448 1449 status_prompt_hlist[status_prompt_hsize - 1] = xstrdup(line); 1450 return; 1451 } 1452 1453 status_prompt_hlist = xreallocarray(status_prompt_hlist, 1454 status_prompt_hsize + 1, sizeof *status_prompt_hlist); 1455 status_prompt_hlist[status_prompt_hsize++] = xstrdup(line); 1456} 1457 1458/* Build completion list. */ 1459static const char ** 1460status_prompt_complete_list(u_int *size, const char *s) 1461{ 1462 const char **list = NULL, **layout; 1463 const struct cmd_entry **cmdent; 1464 const struct options_table_entry *oe; 1465 const char *layouts[] = { 1466 "even-horizontal", "even-vertical", "main-horizontal", 1467 "main-vertical", "tiled", NULL 1468 }; 1469 1470 *size = 0; 1471 for (cmdent = cmd_table; *cmdent != NULL; cmdent++) { 1472 if (strncmp((*cmdent)->name, s, strlen(s)) == 0) { 1473 list = xreallocarray(list, (*size) + 1, sizeof *list); 1474 list[(*size)++] = (*cmdent)->name; 1475 } 1476 } 1477 for (oe = options_table; oe->name != NULL; oe++) { 1478 if (strncmp(oe->name, s, strlen(s)) == 0) { 1479 list = xreallocarray(list, (*size) + 1, sizeof *list); 1480 list[(*size)++] = oe->name; 1481 } 1482 } 1483 for (layout = layouts; *layout != NULL; layout++) { 1484 if (strncmp(*layout, s, strlen(s)) == 0) { 1485 list = xreallocarray(list, (*size) + 1, sizeof *list); 1486 list[(*size)++] = *layout; 1487 } 1488 } 1489 return (list); 1490} 1491 1492/* Find longest prefix. */ 1493static char * 1494status_prompt_complete_prefix(const char **list, u_int size) 1495{ 1496 char *out; 1497 u_int i; 1498 size_t j; 1499 1500 out = xstrdup(list[0]); 1501 for (i = 1; i < size; i++) { 1502 j = strlen(list[i]); 1503 if (j > strlen(out)) 1504 j = strlen(out); 1505 for (; j > 0; j--) { 1506 if (out[j - 1] != list[i][j - 1]) 1507 out[j - 1] = '\0'; 1508 } 1509 } 1510 return (out); 1511} 1512 1513/* Complete word. */ 1514static char * 1515status_prompt_complete(struct session *session, const char *s) 1516{ 1517 const char **list = NULL, *colon; 1518 u_int size = 0, i; 1519 struct session *s_loop; 1520 struct winlink *wl; 1521 struct window *w; 1522 char *copy, *out, *tmp; 1523 1524 if (*s == '\0') 1525 return (NULL); 1526 out = NULL; 1527 1528 if (strncmp(s, "-t", 2) != 0 && strncmp(s, "-s", 2) != 0) { 1529 list = status_prompt_complete_list(&size, s); 1530 if (size == 0) 1531 out = NULL; 1532 else if (size == 1) 1533 xasprintf(&out, "%s ", list[0]); 1534 else 1535 out = status_prompt_complete_prefix(list, size); 1536 free(list); 1537 return (out); 1538 } 1539 copy = xstrdup(s); 1540 1541 colon = ":"; 1542 if (copy[strlen(copy) - 1] == ':') 1543 copy[strlen(copy) - 1] = '\0'; 1544 else 1545 colon = ""; 1546 s = copy + 2; 1547 1548 RB_FOREACH(s_loop, sessions, &sessions) { 1549 if (strncmp(s_loop->name, s, strlen(s)) == 0) { 1550 list = xreallocarray(list, size + 2, sizeof *list); 1551 list[size++] = s_loop->name; 1552 } 1553 } 1554 if (size == 1) { 1555 out = xstrdup(list[0]); 1556 if (session_find(list[0]) != NULL) 1557 colon = ":"; 1558 } else if (size != 0) 1559 out = status_prompt_complete_prefix(list, size); 1560 if (out != NULL) { 1561 xasprintf(&tmp, "-%c%s%s", copy[1], out, colon); 1562 free(out); 1563 out = tmp; 1564 goto found; 1565 } 1566 1567 colon = ""; 1568 if (*s == ':') { 1569 RB_FOREACH(wl, winlinks, &session->windows) { 1570 xasprintf(&tmp, ":%s", wl->window->name); 1571 if (strncmp(tmp, s, strlen(s)) == 0){ 1572 list = xreallocarray(list, size + 1, 1573 sizeof *list); 1574 list[size++] = tmp; 1575 continue; 1576 } 1577 free(tmp); 1578 1579 xasprintf(&tmp, ":%d", wl->idx); 1580 if (strncmp(tmp, s, strlen(s)) == 0) { 1581 list = xreallocarray(list, size + 1, 1582 sizeof *list); 1583 list[size++] = tmp; 1584 continue; 1585 } 1586 free(tmp); 1587 } 1588 } else { 1589 RB_FOREACH(s_loop, sessions, &sessions) { 1590 RB_FOREACH(wl, winlinks, &s_loop->windows) { 1591 w = wl->window; 1592 1593 xasprintf(&tmp, "%s:%s", s_loop->name, w->name); 1594 if (strncmp(tmp, s, strlen(s)) == 0) { 1595 list = xreallocarray(list, size + 1, 1596 sizeof *list); 1597 list[size++] = tmp; 1598 continue; 1599 } 1600 free(tmp); 1601 1602 xasprintf(&tmp, "%s:%d", s_loop->name, wl->idx); 1603 if (strncmp(tmp, s, strlen(s)) == 0) { 1604 list = xreallocarray(list, size + 1, 1605 sizeof *list); 1606 list[size++] = tmp; 1607 continue; 1608 } 1609 free(tmp); 1610 } 1611 } 1612 } 1613 if (size == 1) { 1614 out = xstrdup(list[0]); 1615 colon = " "; 1616 } else if (size != 0) 1617 out = status_prompt_complete_prefix(list, size); 1618 if (out != NULL) { 1619 xasprintf(&tmp, "-%c%s%s", copy[1], out, colon); 1620 out = tmp; 1621 } 1622 1623 for (i = 0; i < size; i++) 1624 free((void *)list[i]); 1625 1626found: 1627 free(copy); 1628 free(list); 1629 return (out); 1630} 1631