Annotation of embedaddon/tmux/cmd-find.c, revision 1.1
1.1 ! misho 1: /* $OpenBSD$ */
! 2:
! 3: /*
! 4: * Copyright (c) 2015 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:
! 21: #include <fnmatch.h>
! 22: #include <limits.h>
! 23: #include <stdlib.h>
! 24: #include <string.h>
! 25: #include <unistd.h>
! 26:
! 27: #include "tmux.h"
! 28:
! 29: static struct session *cmd_find_try_TMUX(struct client *, struct window *);
! 30: static int cmd_find_client_better(struct client *, struct client *);
! 31: static struct client *cmd_find_best_client(struct client **, u_int);
! 32: static int cmd_find_session_better(struct session *, struct session *,
! 33: int);
! 34: static struct session *cmd_find_best_session(struct session **, u_int, int);
! 35: static int cmd_find_best_session_with_window(struct cmd_find_state *);
! 36: static int cmd_find_best_winlink_with_window(struct cmd_find_state *);
! 37:
! 38: static int cmd_find_current_session_with_client(struct cmd_find_state *);
! 39: static int cmd_find_current_session(struct cmd_find_state *);
! 40: static struct client *cmd_find_current_client(struct cmdq_item *);
! 41:
! 42: static const char *cmd_find_map_table(const char *[][2], const char *);
! 43:
! 44: static int cmd_find_get_session(struct cmd_find_state *, const char *);
! 45: static int cmd_find_get_window(struct cmd_find_state *, const char *, int);
! 46: static int cmd_find_get_window_with_session(struct cmd_find_state *,
! 47: const char *);
! 48: static int cmd_find_get_pane(struct cmd_find_state *, const char *, int);
! 49: static int cmd_find_get_pane_with_session(struct cmd_find_state *,
! 50: const char *);
! 51: static int cmd_find_get_pane_with_window(struct cmd_find_state *,
! 52: const char *);
! 53:
! 54: static const char *cmd_find_session_table[][2] = {
! 55: { NULL, NULL }
! 56: };
! 57: static const char *cmd_find_window_table[][2] = {
! 58: { "{start}", "^" },
! 59: { "{last}", "!" },
! 60: { "{end}", "$" },
! 61: { "{next}", "+" },
! 62: { "{previous}", "-" },
! 63: { NULL, NULL }
! 64: };
! 65: static const char *cmd_find_pane_table[][2] = {
! 66: { "{last}", "!" },
! 67: { "{next}", "+" },
! 68: { "{previous}", "-" },
! 69: { "{top}", "top" },
! 70: { "{bottom}", "bottom" },
! 71: { "{left}", "left" },
! 72: { "{right}", "right" },
! 73: { "{top-left}", "top-left" },
! 74: { "{top-right}", "top-right" },
! 75: { "{bottom-left}", "bottom-left" },
! 76: { "{bottom-right}", "bottom-right" },
! 77: { "{up-of}", "{up-of}" },
! 78: { "{down-of}", "{down-of}" },
! 79: { "{left-of}", "{left-of}" },
! 80: { "{right-of}", "{right-of}" },
! 81: { NULL, NULL }
! 82: };
! 83:
! 84: /* Get session from TMUX if present. */
! 85: static struct session *
! 86: cmd_find_try_TMUX(struct client *c, struct window *w)
! 87: {
! 88: struct environ_entry *envent;
! 89: char tmp[256];
! 90: long long pid;
! 91: u_int session;
! 92: struct session *s;
! 93:
! 94: envent = environ_find(c->environ, "TMUX");
! 95: if (envent == NULL)
! 96: return (NULL);
! 97:
! 98: if (sscanf(envent->value, "%255[^,],%lld,%d", tmp, &pid, &session) != 3)
! 99: return (NULL);
! 100: if (pid != getpid())
! 101: return (NULL);
! 102: log_debug("client %p TMUX is %s (session @%u)", c, envent->value,
! 103: session);
! 104:
! 105: s = session_find_by_id(session);
! 106: if (s == NULL || (w != NULL && !session_has(s, w)))
! 107: return (NULL);
! 108: return (s);
! 109: }
! 110:
! 111: /* Is this client better? */
! 112: static int
! 113: cmd_find_client_better(struct client *c, struct client *than)
! 114: {
! 115: if (than == NULL)
! 116: return (1);
! 117: return (timercmp(&c->activity_time, &than->activity_time, >));
! 118: }
! 119:
! 120: /* Find best client from a list, or all if list is NULL. */
! 121: static struct client *
! 122: cmd_find_best_client(struct client **clist, u_int csize)
! 123: {
! 124: struct client *c_loop, *c;
! 125: u_int i;
! 126:
! 127: c = NULL;
! 128: if (clist != NULL) {
! 129: for (i = 0; i < csize; i++) {
! 130: if (clist[i]->session == NULL)
! 131: continue;
! 132: if (cmd_find_client_better(clist[i], c))
! 133: c = clist[i];
! 134: }
! 135: } else {
! 136: TAILQ_FOREACH(c_loop, &clients, entry) {
! 137: if (c_loop->session == NULL)
! 138: continue;
! 139: if (cmd_find_client_better(c_loop, c))
! 140: c = c_loop;
! 141: }
! 142: }
! 143: return (c);
! 144: }
! 145:
! 146: /* Is this session better? */
! 147: static int
! 148: cmd_find_session_better(struct session *s, struct session *than, int flags)
! 149: {
! 150: int attached;
! 151:
! 152: if (than == NULL)
! 153: return (1);
! 154: if (flags & CMD_FIND_PREFER_UNATTACHED) {
! 155: attached = (~than->flags & SESSION_UNATTACHED);
! 156: if (attached && (s->flags & SESSION_UNATTACHED))
! 157: return (1);
! 158: else if (!attached && (~s->flags & SESSION_UNATTACHED))
! 159: return (0);
! 160: }
! 161: return (timercmp(&s->activity_time, &than->activity_time, >));
! 162: }
! 163:
! 164: /* Find best session from a list, or all if list is NULL. */
! 165: static struct session *
! 166: cmd_find_best_session(struct session **slist, u_int ssize, int flags)
! 167: {
! 168: struct session *s_loop, *s;
! 169: u_int i;
! 170:
! 171: s = NULL;
! 172: if (slist != NULL) {
! 173: for (i = 0; i < ssize; i++) {
! 174: if (cmd_find_session_better(slist[i], s, flags))
! 175: s = slist[i];
! 176: }
! 177: } else {
! 178: RB_FOREACH(s_loop, sessions, &sessions) {
! 179: if (cmd_find_session_better(s_loop, s, flags))
! 180: s = s_loop;
! 181: }
! 182: }
! 183: return (s);
! 184: }
! 185:
! 186: /* Find best session and winlink for window. */
! 187: static int
! 188: cmd_find_best_session_with_window(struct cmd_find_state *fs)
! 189: {
! 190: struct session **slist = NULL;
! 191: u_int ssize;
! 192: struct session *s;
! 193:
! 194: if (fs->item != NULL && fs->item->client != NULL) {
! 195: fs->s = cmd_find_try_TMUX(fs->item->client, fs->w);
! 196: if (fs->s != NULL)
! 197: return (cmd_find_best_winlink_with_window(fs));
! 198: }
! 199:
! 200: ssize = 0;
! 201: RB_FOREACH(s, sessions, &sessions) {
! 202: if (!session_has(s, fs->w))
! 203: continue;
! 204: slist = xreallocarray(slist, ssize + 1, sizeof *slist);
! 205: slist[ssize++] = s;
! 206: }
! 207: if (ssize == 0)
! 208: goto fail;
! 209: fs->s = cmd_find_best_session(slist, ssize, fs->flags);
! 210: if (fs->s == NULL)
! 211: goto fail;
! 212: free(slist);
! 213: return (cmd_find_best_winlink_with_window(fs));
! 214:
! 215: fail:
! 216: free(slist);
! 217: return (-1);
! 218: }
! 219:
! 220: /*
! 221: * Find the best winlink for a window (the current if it contains the pane,
! 222: * otherwise the first).
! 223: */
! 224: static int
! 225: cmd_find_best_winlink_with_window(struct cmd_find_state *fs)
! 226: {
! 227: struct winlink *wl, *wl_loop;
! 228:
! 229: wl = NULL;
! 230: if (fs->s->curw != NULL && fs->s->curw->window == fs->w)
! 231: wl = fs->s->curw;
! 232: else {
! 233: RB_FOREACH(wl_loop, winlinks, &fs->s->windows) {
! 234: if (wl_loop->window == fs->w) {
! 235: wl = wl_loop;
! 236: break;
! 237: }
! 238: }
! 239: }
! 240: if (wl == NULL)
! 241: return (-1);
! 242: fs->wl = wl;
! 243: fs->idx = fs->wl->idx;
! 244: return (0);
! 245: }
! 246:
! 247: /* Find current session when we have an unattached client. */
! 248: static int
! 249: cmd_find_current_session_with_client(struct cmd_find_state *fs)
! 250: {
! 251: struct window_pane *wp;
! 252:
! 253: /*
! 254: * If this is running in a pane, we can use that to limit the list of
! 255: * sessions to those containing that pane (we still use the current
! 256: * window in the best session).
! 257: */
! 258: if (fs->item != NULL) {
! 259: RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
! 260: if (strcmp(wp->tty, fs->item->client->ttyname) == 0)
! 261: break;
! 262: }
! 263: } else
! 264: wp = NULL;
! 265:
! 266: /* Not running in a pane. We know nothing. Find the best session. */
! 267: if (wp == NULL)
! 268: goto unknown_pane;
! 269:
! 270: /* Find the best session and winlink containing this pane. */
! 271: fs->w = wp->window;
! 272: if (cmd_find_best_session_with_window(fs) != 0) {
! 273: if (wp != NULL) {
! 274: /*
! 275: * The window may have been destroyed but the pane
! 276: * still on all_window_panes due to something else
! 277: * holding a reference.
! 278: */
! 279: goto unknown_pane;
! 280: }
! 281: return (-1);
! 282: }
! 283:
! 284: /* Use the current window and pane from this session. */
! 285: fs->wl = fs->s->curw;
! 286: fs->idx = fs->wl->idx;
! 287: fs->w = fs->wl->window;
! 288: fs->wp = fs->w->active;
! 289:
! 290: return (0);
! 291:
! 292: unknown_pane:
! 293: fs->s = NULL;
! 294: if (fs->item != NULL)
! 295: fs->s = cmd_find_try_TMUX(fs->item->client, NULL);
! 296: if (fs->s == NULL)
! 297: fs->s = cmd_find_best_session(NULL, 0, fs->flags);
! 298: if (fs->s == NULL)
! 299: return (-1);
! 300: fs->wl = fs->s->curw;
! 301: fs->idx = fs->wl->idx;
! 302: fs->w = fs->wl->window;
! 303: fs->wp = fs->w->active;
! 304:
! 305: return (0);
! 306: }
! 307:
! 308: /*
! 309: * Work out the best current state. If this function succeeds, the state is
! 310: * guaranteed to be completely filled in.
! 311: */
! 312: static int
! 313: cmd_find_current_session(struct cmd_find_state *fs)
! 314: {
! 315: /* If we know the current client, use it. */
! 316: if (fs->item != NULL && fs->item->client != NULL) {
! 317: log_debug("%s: have client %p%s", __func__, fs->item->client,
! 318: fs->item->client->session == NULL ? "" : " (with session)");
! 319: if (fs->item->client->session == NULL)
! 320: return (cmd_find_current_session_with_client(fs));
! 321: fs->s = fs->item->client->session;
! 322: fs->wl = fs->s->curw;
! 323: fs->idx = fs->wl->idx;
! 324: fs->w = fs->wl->window;
! 325: fs->wp = fs->w->active;
! 326: return (0);
! 327: }
! 328:
! 329: /* We know nothing, find the best session and client. */
! 330: fs->s = cmd_find_best_session(NULL, 0, fs->flags);
! 331: if (fs->s == NULL)
! 332: return (-1);
! 333: fs->wl = fs->s->curw;
! 334: fs->idx = fs->wl->idx;
! 335: fs->w = fs->wl->window;
! 336: fs->wp = fs->w->active;
! 337:
! 338: return (0);
! 339: }
! 340:
! 341: /* Work out the best current client. */
! 342: static struct client *
! 343: cmd_find_current_client(struct cmdq_item *item)
! 344: {
! 345: struct cmd_find_state current;
! 346: struct session *s;
! 347: struct client *c, **clist = NULL;
! 348: u_int csize;
! 349:
! 350: /* If the queue client has a session, use it. */
! 351: if (item->client != NULL && item->client->session != NULL) {
! 352: log_debug("%s: using item %p client %p", __func__, item,
! 353: item->client);
! 354: return (item->client);
! 355: }
! 356:
! 357: /* Otherwise find the current session. */
! 358: cmd_find_clear_state(¤t, item, 0);
! 359: if (cmd_find_current_session(¤t) != 0)
! 360: return (NULL);
! 361:
! 362: /* If it is attached, find the best of it's clients. */
! 363: s = current.s;
! 364: log_debug("%s: current session $%u %s", __func__, s->id, s->name);
! 365: if (~s->flags & SESSION_UNATTACHED) {
! 366: csize = 0;
! 367: TAILQ_FOREACH(c, &clients, entry) {
! 368: if (c->session != s)
! 369: continue;
! 370: clist = xreallocarray(clist, csize + 1, sizeof *clist);
! 371: clist[csize++] = c;
! 372: }
! 373: if (csize != 0) {
! 374: c = cmd_find_best_client(clist, csize);
! 375: if (c != NULL) {
! 376: free(clist);
! 377: return (c);
! 378: }
! 379: }
! 380: free(clist);
! 381: }
! 382:
! 383: /* Otherwise pick best of all clients. */
! 384: return (cmd_find_best_client(NULL, 0));
! 385: }
! 386:
! 387: /* Maps string in table. */
! 388: static const char *
! 389: cmd_find_map_table(const char *table[][2], const char *s)
! 390: {
! 391: u_int i;
! 392:
! 393: for (i = 0; table[i][0] != NULL; i++) {
! 394: if (strcmp(s, table[i][0]) == 0)
! 395: return (table[i][1]);
! 396: }
! 397: return (s);
! 398: }
! 399:
! 400: /* Find session from string. Fills in s. */
! 401: static int
! 402: cmd_find_get_session(struct cmd_find_state *fs, const char *session)
! 403: {
! 404: struct session *s, *s_loop;
! 405: struct client *c;
! 406:
! 407: log_debug("%s: %s", __func__, session);
! 408:
! 409: /* Check for session ids starting with $. */
! 410: if (*session == '$') {
! 411: fs->s = session_find_by_id_str(session);
! 412: if (fs->s == NULL)
! 413: return (-1);
! 414: return (0);
! 415: }
! 416:
! 417: /* Look for exactly this session. */
! 418: fs->s = session_find(session);
! 419: if (fs->s != NULL)
! 420: return (0);
! 421:
! 422: /* Look for as a client. */
! 423: c = cmd_find_client(NULL, session, 1);
! 424: if (c != NULL && c->session != NULL) {
! 425: fs->s = c->session;
! 426: return (0);
! 427: }
! 428:
! 429: /* Stop now if exact only. */
! 430: if (fs->flags & CMD_FIND_EXACT_SESSION)
! 431: return (-1);
! 432:
! 433: /* Otherwise look for prefix. */
! 434: s = NULL;
! 435: RB_FOREACH(s_loop, sessions, &sessions) {
! 436: if (strncmp(session, s_loop->name, strlen(session)) == 0) {
! 437: if (s != NULL)
! 438: return (-1);
! 439: s = s_loop;
! 440: }
! 441: }
! 442: if (s != NULL) {
! 443: fs->s = s;
! 444: return (0);
! 445: }
! 446:
! 447: /* Then as a pattern. */
! 448: s = NULL;
! 449: RB_FOREACH(s_loop, sessions, &sessions) {
! 450: if (fnmatch(session, s_loop->name, 0) == 0) {
! 451: if (s != NULL)
! 452: return (-1);
! 453: s = s_loop;
! 454: }
! 455: }
! 456: if (s != NULL) {
! 457: fs->s = s;
! 458: return (0);
! 459: }
! 460:
! 461: return (-1);
! 462: }
! 463:
! 464: /* Find window from string. Fills in s, wl, w. */
! 465: static int
! 466: cmd_find_get_window(struct cmd_find_state *fs, const char *window, int only)
! 467: {
! 468: log_debug("%s: %s", __func__, window);
! 469:
! 470: /* Check for window ids starting with @. */
! 471: if (*window == '@') {
! 472: fs->w = window_find_by_id_str(window);
! 473: if (fs->w == NULL)
! 474: return (-1);
! 475: return (cmd_find_best_session_with_window(fs));
! 476: }
! 477:
! 478: /* Not a window id, so use the current session. */
! 479: fs->s = fs->current->s;
! 480:
! 481: /* We now only need to find the winlink in this session. */
! 482: if (cmd_find_get_window_with_session(fs, window) == 0)
! 483: return (0);
! 484:
! 485: /* Otherwise try as a session itself. */
! 486: if (!only && cmd_find_get_session(fs, window) == 0) {
! 487: fs->wl = fs->s->curw;
! 488: fs->w = fs->wl->window;
! 489: if (~fs->flags & CMD_FIND_WINDOW_INDEX)
! 490: fs->idx = fs->wl->idx;
! 491: return (0);
! 492: }
! 493:
! 494: return (-1);
! 495: }
! 496:
! 497: /*
! 498: * Find window from string, assuming it is in given session. Needs s, fills in
! 499: * wl and w.
! 500: */
! 501: static int
! 502: cmd_find_get_window_with_session(struct cmd_find_state *fs, const char *window)
! 503: {
! 504: struct winlink *wl;
! 505: const char *errstr;
! 506: int idx, n, exact;
! 507: struct session *s;
! 508:
! 509: log_debug("%s: %s", __func__, window);
! 510: exact = (fs->flags & CMD_FIND_EXACT_WINDOW);
! 511:
! 512: /*
! 513: * Start with the current window as the default. So if only an index is
! 514: * found, the window will be the current.
! 515: */
! 516: fs->wl = fs->s->curw;
! 517: fs->w = fs->wl->window;
! 518:
! 519: /* Check for window ids starting with @. */
! 520: if (*window == '@') {
! 521: fs->w = window_find_by_id_str(window);
! 522: if (fs->w == NULL || !session_has(fs->s, fs->w))
! 523: return (-1);
! 524: return (cmd_find_best_winlink_with_window(fs));
! 525: }
! 526:
! 527: /* Try as an offset. */
! 528: if (!exact && (window[0] == '+' || window[0] == '-')) {
! 529: if (window[1] != '\0')
! 530: n = strtonum(window + 1, 1, INT_MAX, NULL);
! 531: else
! 532: n = 1;
! 533: s = fs->s;
! 534: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
! 535: if (window[0] == '+') {
! 536: if (INT_MAX - s->curw->idx < n)
! 537: return (-1);
! 538: fs->idx = s->curw->idx + n;
! 539: } else {
! 540: if (n < s->curw->idx)
! 541: return (-1);
! 542: fs->idx = s->curw->idx - n;
! 543: }
! 544: return (0);
! 545: }
! 546: if (window[0] == '+')
! 547: fs->wl = winlink_next_by_number(s->curw, s, n);
! 548: else
! 549: fs->wl = winlink_previous_by_number(s->curw, s, n);
! 550: if (fs->wl != NULL) {
! 551: fs->idx = fs->wl->idx;
! 552: fs->w = fs->wl->window;
! 553: return (0);
! 554: }
! 555: }
! 556:
! 557: /* Try special characters. */
! 558: if (!exact) {
! 559: if (strcmp(window, "!") == 0) {
! 560: fs->wl = TAILQ_FIRST(&fs->s->lastw);
! 561: if (fs->wl == NULL)
! 562: return (-1);
! 563: fs->idx = fs->wl->idx;
! 564: fs->w = fs->wl->window;
! 565: return (0);
! 566: } else if (strcmp(window, "^") == 0) {
! 567: fs->wl = RB_MIN(winlinks, &fs->s->windows);
! 568: if (fs->wl == NULL)
! 569: return (-1);
! 570: fs->idx = fs->wl->idx;
! 571: fs->w = fs->wl->window;
! 572: return (0);
! 573: } else if (strcmp(window, "$") == 0) {
! 574: fs->wl = RB_MAX(winlinks, &fs->s->windows);
! 575: if (fs->wl == NULL)
! 576: return (-1);
! 577: fs->idx = fs->wl->idx;
! 578: fs->w = fs->wl->window;
! 579: return (0);
! 580: }
! 581: }
! 582:
! 583: /* First see if this is a valid window index in this session. */
! 584: if (window[0] != '+' && window[0] != '-') {
! 585: idx = strtonum(window, 0, INT_MAX, &errstr);
! 586: if (errstr == NULL) {
! 587: if (fs->flags & CMD_FIND_WINDOW_INDEX) {
! 588: fs->idx = idx;
! 589: return (0);
! 590: }
! 591: fs->wl = winlink_find_by_index(&fs->s->windows, idx);
! 592: if (fs->wl != NULL) {
! 593: fs->w = fs->wl->window;
! 594: return (0);
! 595: }
! 596: }
! 597: }
! 598:
! 599: /* Look for exact matches, error if more than one. */
! 600: fs->wl = NULL;
! 601: RB_FOREACH(wl, winlinks, &fs->s->windows) {
! 602: if (strcmp(window, wl->window->name) == 0) {
! 603: if (fs->wl != NULL)
! 604: return (-1);
! 605: fs->wl = wl;
! 606: }
! 607: }
! 608: if (fs->wl != NULL) {
! 609: fs->idx = fs->wl->idx;
! 610: fs->w = fs->wl->window;
! 611: return (0);
! 612: }
! 613:
! 614: /* Stop now if exact only. */
! 615: if (exact)
! 616: return (-1);
! 617:
! 618: /* Try as the start of a window name, error if multiple. */
! 619: fs->wl = NULL;
! 620: RB_FOREACH(wl, winlinks, &fs->s->windows) {
! 621: if (strncmp(window, wl->window->name, strlen(window)) == 0) {
! 622: if (fs->wl != NULL)
! 623: return (-1);
! 624: fs->wl = wl;
! 625: }
! 626: }
! 627: if (fs->wl != NULL) {
! 628: fs->idx = fs->wl->idx;
! 629: fs->w = fs->wl->window;
! 630: return (0);
! 631: }
! 632:
! 633: /* Now look for pattern matches, again error if multiple. */
! 634: fs->wl = NULL;
! 635: RB_FOREACH(wl, winlinks, &fs->s->windows) {
! 636: if (fnmatch(window, wl->window->name, 0) == 0) {
! 637: if (fs->wl != NULL)
! 638: return (-1);
! 639: fs->wl = wl;
! 640: }
! 641: }
! 642: if (fs->wl != NULL) {
! 643: fs->idx = fs->wl->idx;
! 644: fs->w = fs->wl->window;
! 645: return (0);
! 646: }
! 647:
! 648: return (-1);
! 649: }
! 650:
! 651: /* Find pane from string. Fills in s, wl, w, wp. */
! 652: static int
! 653: cmd_find_get_pane(struct cmd_find_state *fs, const char *pane, int only)
! 654: {
! 655: log_debug("%s: %s", __func__, pane);
! 656:
! 657: /* Check for pane ids starting with %. */
! 658: if (*pane == '%') {
! 659: fs->wp = window_pane_find_by_id_str(pane);
! 660: if (fs->wp == NULL || window_pane_outside(fs->wp))
! 661: return (-1);
! 662: fs->w = fs->wp->window;
! 663: return (cmd_find_best_session_with_window(fs));
! 664: }
! 665:
! 666: /* Not a pane id, so try the current session and window. */
! 667: fs->s = fs->current->s;
! 668: fs->wl = fs->current->wl;
! 669: fs->idx = fs->current->idx;
! 670: fs->w = fs->current->w;
! 671:
! 672: /* We now only need to find the pane in this window. */
! 673: if (cmd_find_get_pane_with_window(fs, pane) == 0)
! 674: return (0);
! 675:
! 676: /* Otherwise try as a window itself (this will also try as session). */
! 677: if (!only && cmd_find_get_window(fs, pane, 0) == 0) {
! 678: fs->wp = fs->w->active;
! 679: return (0);
! 680: }
! 681:
! 682: return (-1);
! 683: }
! 684:
! 685: /*
! 686: * Find pane from string, assuming it is in given session. Needs s, fills in wl
! 687: * and w and wp.
! 688: */
! 689: static int
! 690: cmd_find_get_pane_with_session(struct cmd_find_state *fs, const char *pane)
! 691: {
! 692: log_debug("%s: %s", __func__, pane);
! 693:
! 694: /* Check for pane ids starting with %. */
! 695: if (*pane == '%') {
! 696: fs->wp = window_pane_find_by_id_str(pane);
! 697: if (fs->wp == NULL || window_pane_outside(fs->wp))
! 698: return (-1);
! 699: fs->w = fs->wp->window;
! 700: return (cmd_find_best_winlink_with_window(fs));
! 701: }
! 702:
! 703: /* Otherwise use the current window. */
! 704: fs->wl = fs->s->curw;
! 705: fs->idx = fs->wl->idx;
! 706: fs->w = fs->wl->window;
! 707:
! 708: /* Now we just need to look up the pane. */
! 709: return (cmd_find_get_pane_with_window(fs, pane));
! 710: }
! 711:
! 712: /*
! 713: * Find pane from string, assuming it is in the given window. Needs w, fills in
! 714: * wp.
! 715: */
! 716: static int
! 717: cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
! 718: {
! 719: const char *errstr;
! 720: int idx;
! 721: struct window_pane *wp;
! 722: u_int n;
! 723:
! 724: log_debug("%s: %s", __func__, pane);
! 725:
! 726: /* Check for pane ids starting with %. */
! 727: if (*pane == '%') {
! 728: fs->wp = window_pane_find_by_id_str(pane);
! 729: if (fs->wp == NULL || window_pane_outside(fs->wp))
! 730: return (-1);
! 731: if (fs->wp->window != fs->w)
! 732: return (-1);
! 733: return (0);
! 734: }
! 735:
! 736: /* Try special characters. */
! 737: if (strcmp(pane, "!") == 0) {
! 738: if (fs->w->last == NULL)
! 739: return (-1);
! 740: fs->wp = fs->w->last;
! 741: if (fs->wp == NULL || window_pane_outside(fs->wp))
! 742: return (-1);
! 743: return (0);
! 744: } else if (strcmp(pane, "{up-of}") == 0) {
! 745: fs->wp = window_pane_find_up(fs->w->active);
! 746: if (fs->wp == NULL || window_pane_outside(fs->wp))
! 747: return (-1);
! 748: return (0);
! 749: } else if (strcmp(pane, "{down-of}") == 0) {
! 750: fs->wp = window_pane_find_down(fs->w->active);
! 751: if (fs->wp == NULL || window_pane_outside(fs->wp))
! 752: return (-1);
! 753: return (0);
! 754: } else if (strcmp(pane, "{left-of}") == 0) {
! 755: fs->wp = window_pane_find_left(fs->w->active);
! 756: if (fs->wp == NULL || window_pane_outside(fs->wp))
! 757: return (-1);
! 758: return (0);
! 759: } else if (strcmp(pane, "{right-of}") == 0) {
! 760: fs->wp = window_pane_find_right(fs->w->active);
! 761: if (fs->wp == NULL || window_pane_outside(fs->wp))
! 762: return (-1);
! 763: return (0);
! 764: }
! 765:
! 766: /* Try as an offset. */
! 767: if (pane[0] == '+' || pane[0] == '-') {
! 768: if (pane[1] != '\0')
! 769: n = strtonum(pane + 1, 1, INT_MAX, NULL);
! 770: else
! 771: n = 1;
! 772: wp = fs->w->active;
! 773: if (pane[0] == '+')
! 774: fs->wp = window_pane_next_by_number(fs->w, wp, n);
! 775: else
! 776: fs->wp = window_pane_previous_by_number(fs->w, wp, n);
! 777: if (fs->wp != NULL && !window_pane_outside(fs->wp))
! 778: return (0);
! 779: }
! 780:
! 781: /* Get pane by index. */
! 782: idx = strtonum(pane, 0, INT_MAX, &errstr);
! 783: if (errstr == NULL) {
! 784: fs->wp = window_pane_at_index(fs->w, idx);
! 785: if (fs->wp != NULL && !window_pane_outside(fs->wp))
! 786: return (0);
! 787: }
! 788:
! 789: /* Try as a description. */
! 790: fs->wp = window_find_string(fs->w, pane);
! 791: if (fs->wp != NULL && !window_pane_outside(fs->wp))
! 792: return (0);
! 793:
! 794: return (-1);
! 795: }
! 796:
! 797: /* Clear state. */
! 798: void
! 799: cmd_find_clear_state(struct cmd_find_state *fs, struct cmdq_item *item,
! 800: int flags)
! 801: {
! 802: memset(fs, 0, sizeof *fs);
! 803:
! 804: fs->item = item;
! 805: fs->flags = flags;
! 806:
! 807: fs->idx = -1;
! 808: }
! 809:
! 810: /* Check if state is empty/ */
! 811: int
! 812: cmd_find_empty_state(struct cmd_find_state *fs)
! 813: {
! 814: if (fs->s == NULL && fs->wl == NULL && fs->w == NULL && fs->wp == NULL)
! 815: return (1);
! 816: return (0);
! 817: }
! 818:
! 819: /* Check if a state if valid. */
! 820: int
! 821: cmd_find_valid_state(struct cmd_find_state *fs)
! 822: {
! 823: struct winlink *wl;
! 824:
! 825: if (fs->s == NULL || fs->wl == NULL || fs->w == NULL || fs->wp == NULL)
! 826: return (0);
! 827:
! 828: if (!session_alive(fs->s))
! 829: return (0);
! 830:
! 831: RB_FOREACH(wl, winlinks, &fs->s->windows) {
! 832: if (wl->window == fs->w && wl == fs->wl)
! 833: break;
! 834: }
! 835: if (wl == NULL)
! 836: return (0);
! 837:
! 838: if (fs->w != fs->wl->window)
! 839: return (0);
! 840:
! 841: if (!window_has_pane(fs->w, fs->wp))
! 842: return (0);
! 843: return (!window_pane_outside(fs->wp));
! 844: }
! 845:
! 846: /* Copy a state. */
! 847: void
! 848: cmd_find_copy_state(struct cmd_find_state *dst, struct cmd_find_state *src)
! 849: {
! 850: dst->s = src->s;
! 851: dst->wl = src->wl;
! 852: dst->idx = src->idx;
! 853: dst->w = src->w;
! 854: dst->wp = src->wp;
! 855: }
! 856:
! 857: /* Log the result. */
! 858: void
! 859: cmd_find_log_state(const char *prefix, struct cmd_find_state *fs)
! 860: {
! 861: if (fs->s != NULL)
! 862: log_debug("%s: s=$%u", prefix, fs->s->id);
! 863: else
! 864: log_debug("%s: s=none", prefix);
! 865: if (fs->wl != NULL) {
! 866: log_debug("%s: wl=%u %d w=@%u %s", prefix, fs->wl->idx,
! 867: fs->wl->window == fs->w, fs->w->id, fs->w->name);
! 868: } else
! 869: log_debug("%s: wl=none", prefix);
! 870: if (fs->wp != NULL)
! 871: log_debug("%s: wp=%%%u", prefix, fs->wp->id);
! 872: else
! 873: log_debug("%s: wp=none", prefix);
! 874: if (fs->idx != -1)
! 875: log_debug("%s: idx=%d", prefix, fs->idx);
! 876: else
! 877: log_debug("%s: idx=none", prefix);
! 878: }
! 879:
! 880: /* Find state from a session. */
! 881: int
! 882: cmd_find_from_session(struct cmd_find_state *fs, struct session *s)
! 883: {
! 884: cmd_find_clear_state(fs, NULL, 0);
! 885:
! 886: fs->s = s;
! 887: fs->wl = fs->s->curw;
! 888: fs->w = fs->wl->window;
! 889: fs->wp = fs->w->active;
! 890:
! 891: cmd_find_log_state(__func__, fs);
! 892: return (0);
! 893: }
! 894:
! 895: /* Find state from a winlink. */
! 896: int
! 897: cmd_find_from_winlink(struct cmd_find_state *fs, struct session *s,
! 898: struct winlink *wl)
! 899: {
! 900: cmd_find_clear_state(fs, NULL, 0);
! 901:
! 902: fs->s = s;
! 903: fs->wl = wl;
! 904: fs->w = wl->window;
! 905: fs->wp = wl->window->active;
! 906:
! 907: cmd_find_log_state(__func__, fs);
! 908: return (0);
! 909: }
! 910:
! 911: /* Find state from a session and window. */
! 912: int
! 913: cmd_find_from_session_window(struct cmd_find_state *fs, struct session *s,
! 914: struct window *w)
! 915: {
! 916: cmd_find_clear_state(fs, NULL, 0);
! 917:
! 918: fs->s = s;
! 919: fs->w = w;
! 920: if (cmd_find_best_winlink_with_window(fs) != 0)
! 921: return (-1);
! 922: fs->wp = fs->w->active;
! 923:
! 924: cmd_find_log_state(__func__, fs);
! 925: return (0);
! 926: }
! 927:
! 928: /* Find state from a window. */
! 929: int
! 930: cmd_find_from_window(struct cmd_find_state *fs, struct window *w)
! 931: {
! 932: cmd_find_clear_state(fs, NULL, 0);
! 933:
! 934: fs->w = w;
! 935: if (cmd_find_best_session_with_window(fs) != 0)
! 936: return (-1);
! 937: if (cmd_find_best_winlink_with_window(fs) != 0)
! 938: return (-1);
! 939: fs->wp = fs->w->active;
! 940:
! 941: cmd_find_log_state(__func__, fs);
! 942: return (0);
! 943: }
! 944:
! 945: /* Find state from a pane. */
! 946: int
! 947: cmd_find_from_pane(struct cmd_find_state *fs, struct window_pane *wp)
! 948: {
! 949: if (cmd_find_from_window(fs, wp->window) != 0)
! 950: return (-1);
! 951: if (window_pane_outside(wp))
! 952: return (-1);
! 953: fs->wp = wp;
! 954:
! 955: cmd_find_log_state(__func__, fs);
! 956: return (0);
! 957: }
! 958:
! 959: /* Find current state. */
! 960: int
! 961: cmd_find_current(struct cmd_find_state *fs, struct cmdq_item *item, int flags)
! 962: {
! 963: cmd_find_clear_state(fs, item, flags);
! 964: if (cmd_find_current_session(fs) != 0) {
! 965: if (~flags & CMD_FIND_QUIET)
! 966: cmdq_error(item, "no current session");
! 967: return (-1);
! 968: }
! 969: return (0);
! 970: }
! 971:
! 972: /*
! 973: * Split target into pieces and resolve for the given type. Fills in the given
! 974: * state. Returns 0 on success or -1 on error.
! 975: */
! 976: int
! 977: cmd_find_target(struct cmd_find_state *fs, struct cmd_find_state *current,
! 978: struct cmdq_item *item, const char *target, enum cmd_find_type type,
! 979: int flags)
! 980: {
! 981: struct mouse_event *m;
! 982: char *colon, *period, *copy = NULL;
! 983: const char *session, *window, *pane;
! 984: int window_only = 0, pane_only = 0;
! 985:
! 986: /* Log the arguments. */
! 987: if (target == NULL)
! 988: log_debug("%s: target none, type %d", __func__, type);
! 989: else
! 990: log_debug("%s: target %s, type %d", __func__, target, type);
! 991: log_debug("%s: item %p, flags %#x", __func__, item, flags);
! 992:
! 993: /* Clear new state. */
! 994: cmd_find_clear_state(fs, item, flags);
! 995:
! 996: /* Find current state. */
! 997: if (server_check_marked() && (flags & CMD_FIND_DEFAULT_MARKED)) {
! 998: fs->current = &marked_pane;
! 999: log_debug("%s: current is marked pane", __func__);
! 1000: } else if (cmd_find_valid_state(&item->current)) {
! 1001: fs->current = &item->current;
! 1002: log_debug("%s: current is from queue", __func__);
! 1003: } else {
! 1004: fs->current = current;
! 1005: log_debug("%s: current is from argument", __func__);
! 1006: }
! 1007: if (!cmd_find_empty_state(fs->current) &&
! 1008: !cmd_find_valid_state(fs->current))
! 1009: fatalx("invalid current find state");
! 1010:
! 1011: /* An empty or NULL target is the current. */
! 1012: if (target == NULL || *target == '\0')
! 1013: goto current;
! 1014:
! 1015: /* Mouse target is a plain = or {mouse}. */
! 1016: if (strcmp(target, "=") == 0 || strcmp(target, "{mouse}") == 0) {
! 1017: m = &item->mouse;
! 1018: switch (type) {
! 1019: case CMD_FIND_PANE:
! 1020: fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
! 1021: if (fs->wp != NULL && !window_pane_outside(fs->wp))
! 1022: fs->w = fs->wl->window;
! 1023: break;
! 1024: case CMD_FIND_WINDOW:
! 1025: case CMD_FIND_SESSION:
! 1026: fs->wl = cmd_mouse_window(m, &fs->s);
! 1027: if (fs->wl != NULL) {
! 1028: fs->w = fs->wl->window;
! 1029: fs->wp = fs->w->active;
! 1030: }
! 1031: break;
! 1032: }
! 1033: if (fs->wp == NULL) {
! 1034: if (~flags & CMD_FIND_QUIET)
! 1035: cmdq_error(item, "no mouse target");
! 1036: goto error;
! 1037: }
! 1038: goto found;
! 1039: }
! 1040:
! 1041: /* Marked target is a plain ~ or {marked}. */
! 1042: if (strcmp(target, "~") == 0 || strcmp(target, "{marked}") == 0) {
! 1043: if (!server_check_marked()) {
! 1044: if (~flags & CMD_FIND_QUIET)
! 1045: cmdq_error(item, "no marked target");
! 1046: goto error;
! 1047: }
! 1048: cmd_find_copy_state(fs, &marked_pane);
! 1049: goto found;
! 1050: }
! 1051:
! 1052: /* Find separators if they exist. */
! 1053: copy = xstrdup(target);
! 1054: colon = strchr(copy, ':');
! 1055: if (colon != NULL)
! 1056: *colon++ = '\0';
! 1057: if (colon == NULL)
! 1058: period = strchr(copy, '.');
! 1059: else
! 1060: period = strchr(colon, '.');
! 1061: if (period != NULL)
! 1062: *period++ = '\0';
! 1063:
! 1064: /* Set session, window and pane parts. */
! 1065: session = window = pane = NULL;
! 1066: if (colon != NULL && period != NULL) {
! 1067: session = copy;
! 1068: window = colon;
! 1069: window_only = 1;
! 1070: pane = period;
! 1071: pane_only = 1;
! 1072: } else if (colon != NULL && period == NULL) {
! 1073: session = copy;
! 1074: window = colon;
! 1075: window_only = 1;
! 1076: } else if (colon == NULL && period != NULL) {
! 1077: window = copy;
! 1078: pane = period;
! 1079: pane_only = 1;
! 1080: } else {
! 1081: if (*copy == '$')
! 1082: session = copy;
! 1083: else if (*copy == '@')
! 1084: window = copy;
! 1085: else if (*copy == '%')
! 1086: pane = copy;
! 1087: else {
! 1088: switch (type) {
! 1089: case CMD_FIND_SESSION:
! 1090: session = copy;
! 1091: break;
! 1092: case CMD_FIND_WINDOW:
! 1093: window = copy;
! 1094: break;
! 1095: case CMD_FIND_PANE:
! 1096: pane = copy;
! 1097: break;
! 1098: }
! 1099: }
! 1100: }
! 1101:
! 1102: /* Set exact match flags. */
! 1103: if (session != NULL && *session == '=') {
! 1104: session++;
! 1105: fs->flags |= CMD_FIND_EXACT_SESSION;
! 1106: }
! 1107: if (window != NULL && *window == '=') {
! 1108: window++;
! 1109: fs->flags |= CMD_FIND_EXACT_WINDOW;
! 1110: }
! 1111:
! 1112: /* Empty is the same as NULL. */
! 1113: if (session != NULL && *session == '\0')
! 1114: session = NULL;
! 1115: if (window != NULL && *window == '\0')
! 1116: window = NULL;
! 1117: if (pane != NULL && *pane == '\0')
! 1118: pane = NULL;
! 1119:
! 1120: /* Map though conversion table. */
! 1121: if (session != NULL)
! 1122: session = cmd_find_map_table(cmd_find_session_table, session);
! 1123: if (window != NULL)
! 1124: window = cmd_find_map_table(cmd_find_window_table, window);
! 1125: if (pane != NULL)
! 1126: pane = cmd_find_map_table(cmd_find_pane_table, pane);
! 1127:
! 1128: log_debug("target %s (flags %#x): session=%s, window=%s, pane=%s",
! 1129: target, flags, session == NULL ? "none" : session,
! 1130: window == NULL ? "none" : window, pane == NULL ? "none" : pane);
! 1131:
! 1132: /* No pane is allowed if want an index. */
! 1133: if (pane != NULL && (flags & CMD_FIND_WINDOW_INDEX)) {
! 1134: if (~flags & CMD_FIND_QUIET)
! 1135: cmdq_error(item, "can't specify pane here");
! 1136: goto error;
! 1137: }
! 1138:
! 1139: /* If the session isn't NULL, look it up. */
! 1140: if (session != NULL) {
! 1141: /* This will fill in session. */
! 1142: if (cmd_find_get_session(fs, session) != 0)
! 1143: goto no_session;
! 1144:
! 1145: /* If window and pane are NULL, use that session's current. */
! 1146: if (window == NULL && pane == NULL) {
! 1147: fs->wl = fs->s->curw;
! 1148: fs->idx = -1;
! 1149: fs->w = fs->wl->window;
! 1150: fs->wp = fs->w->active;
! 1151: goto found;
! 1152: }
! 1153:
! 1154: /* If window is present but pane not, find window in session. */
! 1155: if (window != NULL && pane == NULL) {
! 1156: /* This will fill in winlink and window. */
! 1157: if (cmd_find_get_window_with_session(fs, window) != 0)
! 1158: goto no_window;
! 1159: fs->wp = fs->wl->window->active;
! 1160: goto found;
! 1161: }
! 1162:
! 1163: /* If pane is present but window not, find pane. */
! 1164: if (window == NULL && pane != NULL) {
! 1165: /* This will fill in winlink and window and pane. */
! 1166: if (cmd_find_get_pane_with_session(fs, pane) != 0)
! 1167: goto no_pane;
! 1168: goto found;
! 1169: }
! 1170:
! 1171: /*
! 1172: * If window and pane are present, find both in session. This
! 1173: * will fill in winlink and window.
! 1174: */
! 1175: if (cmd_find_get_window_with_session(fs, window) != 0)
! 1176: goto no_window;
! 1177: /* This will fill in pane. */
! 1178: if (cmd_find_get_pane_with_window(fs, pane) != 0)
! 1179: goto no_pane;
! 1180: goto found;
! 1181: }
! 1182:
! 1183: /* No session. If window and pane, try them. */
! 1184: if (window != NULL && pane != NULL) {
! 1185: /* This will fill in session, winlink and window. */
! 1186: if (cmd_find_get_window(fs, window, window_only) != 0)
! 1187: goto no_window;
! 1188: /* This will fill in pane. */
! 1189: if (cmd_find_get_pane_with_window(fs, pane) != 0)
! 1190: goto no_pane;
! 1191: goto found;
! 1192: }
! 1193:
! 1194: /* If just window is present, try it. */
! 1195: if (window != NULL && pane == NULL) {
! 1196: /* This will fill in session, winlink and window. */
! 1197: if (cmd_find_get_window(fs, window, window_only) != 0)
! 1198: goto no_window;
! 1199: fs->wp = fs->wl->window->active;
! 1200: goto found;
! 1201: }
! 1202:
! 1203: /* If just pane is present, try it. */
! 1204: if (window == NULL && pane != NULL) {
! 1205: /* This will fill in session, winlink, window and pane. */
! 1206: if (cmd_find_get_pane(fs, pane, pane_only) != 0)
! 1207: goto no_pane;
! 1208: goto found;
! 1209: }
! 1210:
! 1211: current:
! 1212: /* Use the current session. */
! 1213: cmd_find_copy_state(fs, fs->current);
! 1214: if (flags & CMD_FIND_WINDOW_INDEX)
! 1215: fs->idx = -1;
! 1216: goto found;
! 1217:
! 1218: error:
! 1219: fs->current = NULL;
! 1220: log_debug("%s: error", __func__);
! 1221:
! 1222: free(copy);
! 1223: return (-1);
! 1224:
! 1225: found:
! 1226: fs->current = NULL;
! 1227: cmd_find_log_state(__func__, fs);
! 1228:
! 1229: free(copy);
! 1230: return (0);
! 1231:
! 1232: no_session:
! 1233: if (~flags & CMD_FIND_QUIET)
! 1234: cmdq_error(item, "can't find session %s", session);
! 1235: goto error;
! 1236:
! 1237: no_window:
! 1238: if (~flags & CMD_FIND_QUIET)
! 1239: cmdq_error(item, "can't find window %s", window);
! 1240: goto error;
! 1241:
! 1242: no_pane:
! 1243: if (~flags & CMD_FIND_QUIET)
! 1244: cmdq_error(item, "can't find pane %s", pane);
! 1245: goto error;
! 1246: }
! 1247:
! 1248: /* Find the target client or report an error and return NULL. */
! 1249: struct client *
! 1250: cmd_find_client(struct cmdq_item *item, const char *target, int quiet)
! 1251: {
! 1252: struct client *c;
! 1253: char *copy;
! 1254: size_t size;
! 1255:
! 1256: /* A NULL argument means the current client. */
! 1257: if (item != NULL && target == NULL) {
! 1258: c = cmd_find_current_client(item);
! 1259: if (c == NULL && !quiet)
! 1260: cmdq_error(item, "no current client");
! 1261: log_debug("%s: no target, return %p", __func__, c);
! 1262: return (c);
! 1263: }
! 1264: copy = xstrdup(target);
! 1265:
! 1266: /* Trim a single trailing colon if any. */
! 1267: size = strlen(copy);
! 1268: if (size != 0 && copy[size - 1] == ':')
! 1269: copy[size - 1] = '\0';
! 1270:
! 1271: /* Check name and path of each client. */
! 1272: TAILQ_FOREACH(c, &clients, entry) {
! 1273: if (c->session == NULL)
! 1274: continue;
! 1275: if (strcmp(copy, c->name) == 0)
! 1276: break;
! 1277:
! 1278: if (*c->ttyname == '\0')
! 1279: continue;
! 1280: if (strcmp(copy, c->ttyname) == 0)
! 1281: break;
! 1282: if (strncmp(c->ttyname, _PATH_DEV, (sizeof _PATH_DEV) - 1) != 0)
! 1283: continue;
! 1284: if (strcmp(copy, c->ttyname + (sizeof _PATH_DEV) - 1) == 0)
! 1285: break;
! 1286: }
! 1287:
! 1288: /* If no client found, report an error. */
! 1289: if (c == NULL && !quiet)
! 1290: cmdq_error(item, "can't find client %s", copy);
! 1291:
! 1292: free(copy);
! 1293: log_debug("%s: target %s, return %p", __func__, target, c);
! 1294: return (c);
! 1295: }
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