Annotation of src/usr.bin/tmux/status.c, Revision 1.66
1.66 ! nicm 1: /* $OpenBSD: status.c,v 1.65 2010/12/11 16:05:57 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
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:
1.48 nicm 32: char *status_redraw_get_left(
33: struct client *, time_t, int, struct grid_cell *, size_t *);
34: char *status_redraw_get_right(
35: struct client *, time_t, int, struct grid_cell *, size_t *);
1.38 nicm 36: char *status_job(struct client *, char **);
37: void status_job_callback(struct job *);
1.47 nicm 38: char *status_print(
1.55 nicm 39: struct client *, struct winlink *, time_t, struct grid_cell *);
1.47 nicm 40: void status_replace1(struct client *,
1.55 nicm 41: struct winlink *, char **, char **, char *, size_t, int);
1.42 nicm 42: void status_message_callback(int, short, void *);
1.1 nicm 43:
1.65 nicm 44: const char *status_prompt_up_history(u_int *);
45: const char *status_prompt_down_history(u_int *);
46: void status_prompt_add_history(const char *);
1.1 nicm 47: char *status_prompt_complete(const char *);
48:
1.65 nicm 49: /* Status prompt history. */
50: ARRAY_DECL(, char *) status_prompt_history = ARRAY_INITIALIZER;
51:
1.48 nicm 52: /* Retrieve options for left string. */
53: char *
54: status_redraw_get_left(struct client *c,
55: time_t t, int utf8flag, struct grid_cell *gc, size_t *size)
56: {
57: struct session *s = c->session;
58: char *left;
59: u_char fg, bg, attr;
60: size_t leftlen;
61:
62: fg = options_get_number(&s->options, "status-left-fg");
63: if (fg != 8)
64: colour_set_fg(gc, fg);
65: bg = options_get_number(&s->options, "status-left-bg");
66: if (bg != 8)
67: colour_set_bg(gc, bg);
68: attr = options_get_number(&s->options, "status-left-attr");
69: if (attr != 0)
70: gc->attr = attr;
71:
72: left = status_replace(
73: c, NULL, options_get_string(&s->options, "status-left"), t, 1);
74:
75: *size = options_get_number(&s->options, "status-left-length");
76: leftlen = screen_write_cstrlen(utf8flag, "%s", left);
77: if (leftlen < *size)
78: *size = leftlen;
79: return (left);
80: }
81:
82: /* Retrieve options for right string. */
83: char *
84: status_redraw_get_right(struct client *c,
85: time_t t, int utf8flag, struct grid_cell *gc, size_t *size)
86: {
87: struct session *s = c->session;
88: char *right;
89: u_char fg, bg, attr;
90: size_t rightlen;
91:
92: fg = options_get_number(&s->options, "status-right-fg");
93: if (fg != 8)
94: colour_set_fg(gc, fg);
95: bg = options_get_number(&s->options, "status-right-bg");
96: if (bg != 8)
97: colour_set_bg(gc, bg);
98: attr = options_get_number(&s->options, "status-right-attr");
99: if (attr != 0)
100: gc->attr = attr;
101:
102: right = status_replace(
103: c, NULL, options_get_string(&s->options, "status-right"), t, 1);
104:
105: *size = options_get_number(&s->options, "status-right-length");
106: rightlen = screen_write_cstrlen(utf8flag, "%s", right);
107: if (rightlen < *size)
108: *size = rightlen;
109: return (right);
110: }
111:
1.1 nicm 112: /* Draw status for client on the last lines of given context. */
113: int
114: status_redraw(struct client *c)
115: {
1.48 nicm 116: struct screen_write_ctx ctx;
117: struct session *s = c->session;
118: struct winlink *wl;
119: struct screen old_status, window_list;
120: struct grid_cell stdgc, lgc, rgc, gc;
121: time_t t;
122: char *left, *right;
123: u_int offset, needed;
124: u_int wlstart, wlwidth, wlavailable, wloffset, wlsize;
125: size_t llen, rlen;
126: int larrow, rarrow, utf8flag;
1.1 nicm 127:
1.49 nicm 128: /* No status line? */
1.7 nicm 129: if (c->tty.sy == 0 || !options_get_number(&s->options, "status"))
130: return (1);
1.48 nicm 131: left = right = NULL;
1.7 nicm 132: larrow = rarrow = 0;
1.1 nicm 133:
1.48 nicm 134: /* Update status timer. */
1.1 nicm 135: if (gettimeofday(&c->status_timer, NULL) != 0)
1.34 nicm 136: fatal("gettimeofday failed");
1.48 nicm 137: t = c->status_timer.tv_sec;
138:
139: /* Set up default colour. */
1.1 nicm 140: memcpy(&stdgc, &grid_default_cell, sizeof gc);
1.33 nicm 141: colour_set_fg(&stdgc, options_get_number(&s->options, "status-fg"));
142: colour_set_bg(&stdgc, options_get_number(&s->options, "status-bg"));
1.1 nicm 143: stdgc.attr |= options_get_number(&s->options, "status-attr");
144:
1.48 nicm 145: /* Create the target screen. */
146: memcpy(&old_status, &c->status, sizeof old_status);
147: screen_init(&c->status, c->tty.sx, 1, 0);
148: screen_write_start(&ctx, NULL, &c->status);
149: for (offset = 0; offset < c->tty.sx; offset++)
150: screen_write_putc(&ctx, &stdgc, ' ');
151: screen_write_stop(&ctx);
152:
153: /* If the height is one line, blank status line. */
154: if (c->tty.sy <= 1)
155: goto out;
1.1 nicm 156:
1.48 nicm 157: /* Get UTF-8 flag. */
1.3 nicm 158: utf8flag = options_get_number(&s->options, "status-utf8");
159:
1.48 nicm 160: /* Work out left and right strings. */
161: memcpy(&lgc, &stdgc, sizeof lgc);
162: left = status_redraw_get_left(c, t, utf8flag, &lgc, &llen);
163: memcpy(&rgc, &stdgc, sizeof rgc);
164: right = status_redraw_get_right(c, t, utf8flag, &rgc, &rlen);
1.1 nicm 165:
166: /*
1.48 nicm 167: * Figure out how much space we have for the window list. If there
168: * isn't enough space, just show a blank status line.
1.1 nicm 169: */
1.55 nicm 170: needed = 0;
1.1 nicm 171: if (llen != 0)
1.48 nicm 172: needed += llen + 1;
1.1 nicm 173: if (rlen != 0)
1.48 nicm 174: needed += rlen + 1;
175: if (c->tty.sx == 0 || c->tty.sx <= needed)
176: goto out;
177: wlavailable = c->tty.sx - needed;
1.1 nicm 178:
1.48 nicm 179: /* Calculate the total size needed for the window list. */
180: wlstart = wloffset = wlwidth = 0;
1.1 nicm 181: RB_FOREACH(wl, winlinks, &s->windows) {
1.48 nicm 182: if (wl->status_text != NULL)
183: xfree(wl->status_text);
184: memcpy(&wl->status_cell, &stdgc, sizeof wl->status_cell);
185: wl->status_text = status_print(c, wl, t, &wl->status_cell);
1.55 nicm 186: wl->status_width =
1.48 nicm 187: screen_write_cstrlen(utf8flag, "%s", wl->status_text);
188:
1.1 nicm 189: if (wl == s->curw)
1.48 nicm 190: wloffset = wlwidth;
191: wlwidth += wl->status_width + 1;
192: }
193:
194: /* Create a new screen for the window list. */
195: screen_init(&window_list, wlwidth, 1, 0);
196:
197: /* And draw the window list into it. */
198: screen_write_start(&ctx, NULL, &window_list);
199: RB_FOREACH(wl, winlinks, &s->windows) {
1.55 nicm 200: screen_write_cnputs(&ctx,
1.48 nicm 201: -1, &wl->status_cell, utf8flag, "%s", wl->status_text);
202: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 203: }
1.48 nicm 204: screen_write_stop(&ctx);
1.1 nicm 205:
1.48 nicm 206: /* If there is enough space for the total width, skip to draw now. */
207: if (wlwidth <= wlavailable)
1.1 nicm 208: goto draw;
209:
210: /* Find size of current window text. */
1.48 nicm 211: wlsize = s->curw->status_width;
1.1 nicm 212:
213: /*
1.48 nicm 214: * If the current window is already on screen, good to draw from the
1.1 nicm 215: * start and just leave off the end.
216: */
1.48 nicm 217: if (wloffset + wlsize < wlavailable) {
218: if (wlavailable > 0) {
219: rarrow = 1;
220: wlavailable--;
221: }
222: wlwidth = wlavailable;
223: } else {
224: /*
225: * Work out how many characters we need to omit from the
226: * start. There are wlavailable characters to fill, and
227: * wloffset + wlsize must be the last. So, the start character
228: * is wloffset + wlsize - wlavailable.
229: */
230: if (wlavailable > 0) {
231: larrow = 1;
232: wlavailable--;
233: }
1.55 nicm 234:
1.48 nicm 235: wlstart = wloffset + wlsize - wlavailable;
236: if (wlavailable > 0 && wlwidth > wlstart + wlavailable + 1) {
1.1 nicm 237: rarrow = 1;
1.48 nicm 238: wlstart++;
239: wlavailable--;
1.1 nicm 240: }
1.48 nicm 241: wlwidth = wlavailable;
242: }
1.1 nicm 243:
1.48 nicm 244: /* Bail if anything is now too small too. */
245: if (wlwidth == 0 || wlavailable == 0) {
246: screen_free(&window_list);
247: goto out;
1.1 nicm 248: }
249:
250: /*
1.48 nicm 251: * Now the start position is known, work out the state of the left and
252: * right arrows.
1.1 nicm 253: */
254: offset = 0;
255: RB_FOREACH(wl, winlinks, &s->windows) {
1.63 nicm 256: if (wl->flags & WINLINK_ALERTFLAGS &&
257: larrow == 1 && offset < wlstart)
258: larrow = -1;
1.1 nicm 259:
1.48 nicm 260: offset += wl->status_width;
1.1 nicm 261:
1.63 nicm 262: if (wl->flags & WINLINK_ALERTFLAGS &&
263: rarrow == 1 && offset > wlstart + wlwidth)
264: rarrow = -1;
1.1 nicm 265: }
266:
1.48 nicm 267: draw:
1.55 nicm 268: /* Begin drawing. */
1.48 nicm 269: screen_write_start(&ctx, NULL, &c->status);
1.1 nicm 270:
1.48 nicm 271: /* Draw the left string and arrow. */
272: screen_write_cursormove(&ctx, 0, 0);
273: if (llen != 0) {
274: screen_write_cnputs(&ctx, llen, &lgc, utf8flag, "%s", left);
1.5 nicm 275: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 276: }
277: if (larrow != 0) {
278: memcpy(&gc, &stdgc, sizeof gc);
279: if (larrow == -1)
280: gc.attr ^= GRID_ATTR_REVERSE;
281: screen_write_putc(&ctx, &gc, '<');
282: }
1.48 nicm 283:
284: /* Draw the right string and arrow. */
1.1 nicm 285: if (rarrow != 0) {
1.48 nicm 286: screen_write_cursormove(&ctx, c->tty.sx - rlen - 2, 0);
1.1 nicm 287: memcpy(&gc, &stdgc, sizeof gc);
288: if (rarrow == -1)
289: gc.attr ^= GRID_ATTR_REVERSE;
290: screen_write_putc(&ctx, &gc, '>');
1.48 nicm 291: } else
292: screen_write_cursormove(&ctx, c->tty.sx - rlen - 1, 0);
293: if (rlen != 0) {
294: screen_write_putc(&ctx, &stdgc, ' ');
295: screen_write_cnputs(&ctx, rlen, &rgc, utf8flag, "%s", right);
1.1 nicm 296: }
297:
1.48 nicm 298: /* Figure out the offset for the window list. */
1.58 nicm 299: if (llen != 0)
300: wloffset = llen + 1;
301: else
302: wloffset = 0;
1.48 nicm 303: if (wlwidth < wlavailable) {
304: switch (options_get_number(&s->options, "status-justify")) {
305: case 1: /* centered */
1.58 nicm 306: wloffset += (wlavailable - wlwidth) / 2;
1.48 nicm 307: break;
308: case 2: /* right */
1.58 nicm 309: wloffset += (wlavailable - wlwidth);
1.48 nicm 310: break;
311: }
312: }
313: if (larrow != 0)
314: wloffset++;
315:
316: /* Copy the window list. */
317: screen_write_cursormove(&ctx, wloffset, 0);
318: screen_write_copy(&ctx, &window_list, wlstart, 0, wlwidth, 1);
1.55 nicm 319: screen_free(&window_list);
1.1 nicm 320:
1.48 nicm 321: screen_write_stop(&ctx);
1.1 nicm 322:
323: out:
324: if (left != NULL)
325: xfree(left);
326: if (right != NULL)
327: xfree(right);
328:
329: if (grid_compare(c->status.grid, old_status.grid) == 0) {
330: screen_free(&old_status);
331: return (0);
332: }
333: screen_free(&old_status);
334: return (1);
335: }
336:
1.46 nicm 337: /* Replace a single special sequence (prefixed by #). */
338: void
1.47 nicm 339: status_replace1(struct client *c,struct winlink *wl,
1.46 nicm 340: char **iptr, char **optr, char *out, size_t outsize, int jobsflag)
1.1 nicm 341: {
1.38 nicm 342: struct session *s = c->session;
1.46 nicm 343: char ch, tmp[256], *ptr, *endptr, *freeptr;
344: size_t ptrlen;
345: long limit;
346:
1.47 nicm 347: if (wl == NULL)
348: wl = s->curw;
349:
1.46 nicm 350: errno = 0;
351: limit = strtol(*iptr, &endptr, 10);
352: if ((limit == 0 && errno != EINVAL) ||
353: (limit == LONG_MIN && errno != ERANGE) ||
1.55 nicm 354: (limit == LONG_MAX && errno != ERANGE) ||
1.46 nicm 355: limit != 0)
356: *iptr = endptr;
357: if (limit <= 0)
358: limit = LONG_MAX;
359:
360: freeptr = NULL;
361:
362: switch (*(*iptr)++) {
363: case '(':
364: if (!jobsflag) {
365: ch = ')';
366: goto skip_to;
367: }
368: if ((ptr = status_job(c, iptr)) == NULL)
369: return;
370: freeptr = ptr;
371: goto do_replace;
372: case 'H':
373: if (gethostname(tmp, sizeof tmp) != 0)
374: fatal("gethostname failed");
375: ptr = tmp;
376: goto do_replace;
377: case 'I':
378: xsnprintf(tmp, sizeof tmp, "%d", wl->idx);
379: ptr = tmp;
380: goto do_replace;
381: case 'P':
382: xsnprintf(tmp, sizeof tmp, "%u",
383: window_pane_index(wl->window, wl->window->active));
384: ptr = tmp;
385: goto do_replace;
386: case 'S':
387: ptr = s->name;
388: goto do_replace;
389: case 'T':
390: ptr = wl->window->active->base.title;
391: goto do_replace;
392: case 'W':
393: ptr = wl->window->name;
394: goto do_replace;
1.47 nicm 395: case 'F':
396: tmp[0] = ' ';
1.63 nicm 397: if (wl->flags & WINLINK_CONTENT)
1.47 nicm 398: tmp[0] = '+';
1.63 nicm 399: else if (wl->flags & WINLINK_BELL)
1.47 nicm 400: tmp[0] = '!';
1.63 nicm 401: else if (wl->flags & WINLINK_ACTIVITY)
1.47 nicm 402: tmp[0] = '#';
1.64 nicm 403: else if (wl->flags & WINLINK_SILENCE)
404: tmp[0] = '~';
1.47 nicm 405: else if (wl == s->curw)
406: tmp[0] = '*';
407: else if (wl == TAILQ_FIRST(&s->lastw))
408: tmp[0] = '-';
409: tmp[1] = '\0';
410: ptr = tmp;
411: goto do_replace;
1.46 nicm 412: case '[':
1.55 nicm 413: /*
1.46 nicm 414: * Embedded style, handled at display time. Leave present and
415: * skip input until ].
416: */
417: ch = ']';
418: goto skip_to;
419: case '#':
1.49 nicm 420: *(*optr)++ = '#';
1.46 nicm 421: break;
422: }
423:
424: return;
1.55 nicm 425:
1.46 nicm 426: do_replace:
427: ptrlen = strlen(ptr);
428: if ((size_t) limit < ptrlen)
429: ptrlen = limit;
430:
431: if (*optr + ptrlen >= out + outsize - 1)
432: return;
433: while (ptrlen > 0 && *ptr != '\0') {
434: *(*optr)++ = *ptr++;
435: ptrlen--;
436: }
437:
438: if (freeptr != NULL)
439: xfree(freeptr);
440: return;
441:
442: skip_to:
443: *(*optr)++ = '#';
444:
445: (*iptr)--; /* include ch */
446: while (**iptr != ch && **iptr != '\0') {
447: if (*optr >= out + outsize - 1)
448: break;
449: *(*optr)++ = *(*iptr)++;
450: }
451: }
452:
453: /* Replace special sequences in fmt. */
454: char *
1.47 nicm 455: status_replace(struct client *c,
456: struct winlink *wl, const char *fmt, time_t t, int jobsflag)
1.46 nicm 457: {
1.1 nicm 458: static char out[BUFSIZ];
1.46 nicm 459: char in[BUFSIZ], ch, *iptr, *optr;
1.47 nicm 460:
1.1 nicm 461: strftime(in, sizeof in, fmt, localtime(&t));
462: in[(sizeof in) - 1] = '\0';
463:
464: iptr = in;
465: optr = out;
466:
467: while (*iptr != '\0') {
468: if (optr >= out + (sizeof out) - 1)
469: break;
1.46 nicm 470: ch = *iptr++;
471:
472: if (ch != '#') {
1.1 nicm 473: *optr++ = ch;
1.46 nicm 474: continue;
1.1 nicm 475: }
1.47 nicm 476: status_replace1(c, wl, &iptr, &optr, out, sizeof out, jobsflag);
1.1 nicm 477: }
478: *optr = '\0';
479:
480: return (xstrdup(out));
481: }
482:
1.46 nicm 483: /* Figure out job name and get its result, starting it off if necessary. */
1.1 nicm 484: char *
1.38 nicm 485: status_job(struct client *c, char **iptr)
1.1 nicm 486: {
1.38 nicm 487: struct job *job;
1.40 nicm 488: char *cmd;
1.38 nicm 489: int lastesc;
490: size_t len;
1.1 nicm 491:
492: if (**iptr == '\0')
493: return (NULL);
494: if (**iptr == ')') { /* no command given */
495: (*iptr)++;
496: return (NULL);
497: }
498:
499: cmd = xmalloc(strlen(*iptr) + 1);
500: len = 0;
501:
502: lastesc = 0;
503: for (; **iptr != '\0'; (*iptr)++) {
504: if (!lastesc && **iptr == ')')
505: break; /* unescaped ) is the end */
506: if (!lastesc && **iptr == '\\') {
507: lastesc = 1;
508: continue; /* skip \ if not escaped */
509: }
510: lastesc = 0;
511: cmd[len++] = **iptr;
512: }
1.38 nicm 513: if (**iptr == '\0') /* no terminating ) */ {
514: xfree(cmd);
515: return (NULL);
516: }
1.1 nicm 517: (*iptr)++; /* skip final ) */
518: cmd[len] = '\0';
519:
1.38 nicm 520: job = job_get(&c->status_jobs, cmd);
521: if (job == NULL) {
1.39 nicm 522: job = job_add(&c->status_jobs,
523: JOB_PERSIST, c, cmd, status_job_callback, xfree, NULL);
1.38 nicm 524: job_run(job);
525: }
1.60 nicm 526: xfree(cmd);
1.38 nicm 527: if (job->data == NULL)
528: return (xstrdup(""));
529: return (xstrdup(job->data));
530: }
1.1 nicm 531:
1.46 nicm 532: /* Job has finished: save its result. */
1.38 nicm 533: void
534: status_job_callback(struct job *job)
535: {
1.41 nicm 536: char *line, *buf;
1.38 nicm 537: size_t len;
538:
1.41 nicm 539: buf = NULL;
540: if ((line = evbuffer_readline(job->event->input)) == NULL) {
541: len = EVBUFFER_LENGTH(job->event->input);
542: buf = xmalloc(len + 1);
543: if (len != 0)
544: memcpy(buf, EVBUFFER_DATA(job->event->input), len);
545: buf[len] = '\0';
546: }
1.38 nicm 547:
548: if (job->data != NULL)
549: xfree(job->data);
550: else
551: server_redraw_client(job->client);
1.1 nicm 552:
1.57 nicm 553: if (line == NULL)
554: job->data = buf;
555: else
556: job->data = xstrdup(line);
1.1 nicm 557: }
558:
1.46 nicm 559: /* Return winlink status line entry and adjust gc as necessary. */
1.1 nicm 560: char *
1.47 nicm 561: status_print(
562: struct client *c, struct winlink *wl, time_t t, struct grid_cell *gc)
1.1 nicm 563: {
1.33 nicm 564: struct options *oo = &wl->window->options;
1.47 nicm 565: struct session *s = c->session;
566: const char *fmt;
567: char *text;
1.33 nicm 568: u_char fg, bg, attr;
1.1 nicm 569:
1.33 nicm 570: fg = options_get_number(oo, "window-status-fg");
1.1 nicm 571: if (fg != 8)
1.33 nicm 572: colour_set_fg(gc, fg);
573: bg = options_get_number(oo, "window-status-bg");
1.1 nicm 574: if (bg != 8)
1.33 nicm 575: colour_set_bg(gc, bg);
576: attr = options_get_number(oo, "window-status-attr");
1.1 nicm 577: if (attr != 0)
578: gc->attr = attr;
1.47 nicm 579: fmt = options_get_string(oo, "window-status-format");
1.14 nicm 580: if (wl == s->curw) {
1.33 nicm 581: fg = options_get_number(oo, "window-status-current-fg");
1.14 nicm 582: if (fg != 8)
1.33 nicm 583: colour_set_fg(gc, fg);
584: bg = options_get_number(oo, "window-status-current-bg");
1.14 nicm 585: if (bg != 8)
1.33 nicm 586: colour_set_bg(gc, bg);
587: attr = options_get_number(oo, "window-status-current-attr");
1.14 nicm 588: if (attr != 0)
589: gc->attr = attr;
1.47 nicm 590: fmt = options_get_string(oo, "window-status-current-format");
1.14 nicm 591: }
1.1 nicm 592:
1.63 nicm 593: if (wl->flags & WINLINK_ALERTFLAGS) {
1.62 nicm 594: fg = options_get_number(oo, "window-status-alert-fg");
595: if (fg != 8)
596: colour_set_fg(gc, fg);
597: bg = options_get_number(oo, "window-status-alert-bg");
598: if (bg != 8)
599: colour_set_bg(gc, bg);
600: attr = options_get_number(oo, "window-status-alert-attr");
601: if (attr != 0)
602: gc->attr = attr;
603: }
1.1 nicm 604:
1.47 nicm 605: text = status_replace(c, wl, fmt, t, 1);
1.1 nicm 606: return (text);
607: }
608:
1.46 nicm 609: /* Set a status line message. */
1.10 nicm 610: void printflike2
611: status_message_set(struct client *c, const char *fmt, ...)
1.1 nicm 612: {
1.44 nicm 613: struct timeval tv;
614: struct session *s = c->session;
615: struct message_entry *msg;
616: va_list ap;
617: int delay;
618: u_int i, limit;
1.1 nicm 619:
1.12 nicm 620: status_prompt_clear(c);
621: status_message_clear(c);
622:
1.28 nicm 623: va_start(ap, fmt);
624: xvasprintf(&c->message_string, fmt, ap);
625: va_end(ap);
626:
1.44 nicm 627: ARRAY_EXPAND(&c->message_log, 1);
628: msg = &ARRAY_LAST(&c->message_log);
629: msg->msg_time = time(NULL);
630: msg->msg = xstrdup(c->message_string);
631:
632: if (s == NULL)
633: limit = 0;
634: else
635: limit = options_get_number(&s->options, "message-limit");
1.50 nicm 636: if (ARRAY_LENGTH(&c->message_log) > limit) {
637: limit = ARRAY_LENGTH(&c->message_log) - limit;
638: for (i = 0; i < limit; i++) {
639: msg = &ARRAY_FIRST(&c->message_log);
640: xfree(msg->msg);
641: ARRAY_REMOVE(&c->message_log, 0);
642: }
1.44 nicm 643: }
644:
1.1 nicm 645: delay = options_get_number(&c->session->options, "display-time");
646: tv.tv_sec = delay / 1000;
647: tv.tv_usec = (delay % 1000) * 1000L;
1.44 nicm 648:
1.42 nicm 649: evtimer_del(&c->message_timer);
650: evtimer_set(&c->message_timer, status_message_callback, c);
651: evtimer_add(&c->message_timer, &tv);
1.1 nicm 652:
653: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
654: c->flags |= CLIENT_STATUS;
655: }
656:
1.46 nicm 657: /* Clear status line message. */
1.1 nicm 658: void
659: status_message_clear(struct client *c)
660: {
661: if (c->message_string == NULL)
662: return;
663:
664: xfree(c->message_string);
665: c->message_string = NULL;
666:
667: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 668: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 669:
670: screen_reinit(&c->status);
1.42 nicm 671: }
672:
1.46 nicm 673: /* Clear status line message after timer expires. */
1.52 nicm 674: /* ARGSUSED */
1.42 nicm 675: void
676: status_message_callback(unused int fd, unused short event, void *data)
677: {
678: struct client *c = data;
679:
680: status_message_clear(c);
1.1 nicm 681: }
682:
683: /* Draw client message on status line of present else on last line. */
684: int
685: status_message_redraw(struct client *c)
686: {
687: struct screen_write_ctx ctx;
688: struct session *s = c->session;
689: struct screen old_status;
690: size_t len;
691: struct grid_cell gc;
1.51 nicm 692: int utf8flag;
1.1 nicm 693:
694: if (c->tty.sx == 0 || c->tty.sy == 0)
695: return (0);
696: memcpy(&old_status, &c->status, sizeof old_status);
697: screen_init(&c->status, c->tty.sx, 1, 0);
698:
1.51 nicm 699: utf8flag = options_get_number(&s->options, "status-utf8");
700:
701: len = screen_write_strlen(utf8flag, "%s", c->message_string);
1.1 nicm 702: if (len > c->tty.sx)
703: len = c->tty.sx;
704:
705: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 706: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
707: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 708: gc.attr |= options_get_number(&s->options, "message-attr");
709:
710: screen_write_start(&ctx, NULL, &c->status);
711:
712: screen_write_cursormove(&ctx, 0, 0);
1.51 nicm 713: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->message_string);
1.1 nicm 714: for (; len < c->tty.sx; len++)
715: screen_write_putc(&ctx, &gc, ' ');
716:
717: screen_write_stop(&ctx);
718:
719: if (grid_compare(c->status.grid, old_status.grid) == 0) {
720: screen_free(&old_status);
721: return (0);
722: }
723: screen_free(&old_status);
724: return (1);
725: }
726:
1.46 nicm 727: /* Enable status line prompt. */
1.1 nicm 728: void
1.12 nicm 729: status_prompt_set(struct client *c, const char *msg,
730: int (*callbackfn)(void *, const char *), void (*freefn)(void *),
731: void *data, int flags)
1.1 nicm 732: {
1.20 nicm 733: int keys;
734:
1.12 nicm 735: status_message_clear(c);
736: status_prompt_clear(c);
737:
1.1 nicm 738: c->prompt_string = xstrdup(msg);
739:
740: c->prompt_buffer = xstrdup("");
741: c->prompt_index = 0;
742:
1.12 nicm 743: c->prompt_callbackfn = callbackfn;
744: c->prompt_freefn = freefn;
1.1 nicm 745: c->prompt_data = data;
746:
747: c->prompt_hindex = 0;
748:
749: c->prompt_flags = flags;
750:
1.20 nicm 751: keys = options_get_number(&c->session->options, "status-keys");
752: if (keys == MODEKEY_EMACS)
1.21 nicm 753: mode_key_init(&c->prompt_mdata, &mode_key_tree_emacs_edit);
1.20 nicm 754: else
1.21 nicm 755: mode_key_init(&c->prompt_mdata, &mode_key_tree_vi_edit);
1.1 nicm 756:
757: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
758: c->flags |= CLIENT_STATUS;
759: }
760:
1.46 nicm 761: /* Remove status line prompt. */
1.1 nicm 762: void
763: status_prompt_clear(struct client *c)
764: {
1.55 nicm 765: if (c->prompt_string == NULL)
1.1 nicm 766: return;
767:
1.12 nicm 768: if (c->prompt_freefn != NULL && c->prompt_data != NULL)
769: c->prompt_freefn(c->prompt_data);
1.1 nicm 770:
771: xfree(c->prompt_string);
772: c->prompt_string = NULL;
773:
774: xfree(c->prompt_buffer);
775: c->prompt_buffer = NULL;
776:
777: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 778: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 779:
780: screen_reinit(&c->status);
1.27 nicm 781: }
782:
1.46 nicm 783: /* Update status line prompt with a new prompt string. */
1.27 nicm 784: void
785: status_prompt_update(struct client *c, const char *msg)
786: {
787: xfree(c->prompt_string);
788: c->prompt_string = xstrdup(msg);
789:
790: *c->prompt_buffer = '\0';
791: c->prompt_index = 0;
792:
793: c->prompt_hindex = 0;
794:
795: c->flags |= CLIENT_STATUS;
1.1 nicm 796: }
797:
798: /* Draw client prompt on status line of present else on last line. */
799: int
800: status_prompt_redraw(struct client *c)
801: {
1.51 nicm 802: struct screen_write_ctx ctx;
1.1 nicm 803: struct session *s = c->session;
804: struct screen old_status;
1.29 nicm 805: size_t i, size, left, len, off;
1.51 nicm 806: struct grid_cell gc, *gcp;
807: int utf8flag;
1.1 nicm 808:
809: if (c->tty.sx == 0 || c->tty.sy == 0)
810: return (0);
811: memcpy(&old_status, &c->status, sizeof old_status);
812: screen_init(&c->status, c->tty.sx, 1, 0);
813:
1.51 nicm 814: utf8flag = options_get_number(&s->options, "status-utf8");
815:
816: len = screen_write_strlen(utf8flag, "%s", c->prompt_string);
1.1 nicm 817: if (len > c->tty.sx)
818: len = c->tty.sx;
1.51 nicm 819: off = 0;
1.1 nicm 820:
821: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 822: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
823: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 824: gc.attr |= options_get_number(&s->options, "message-attr");
825:
826: screen_write_start(&ctx, NULL, &c->status);
827:
828: screen_write_cursormove(&ctx, 0, 0);
1.51 nicm 829: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->prompt_string);
1.1 nicm 830:
831: left = c->tty.sx - len;
832: if (left != 0) {
1.51 nicm 833: size = screen_write_strlen(utf8flag, "%s", c->prompt_buffer);
834: if (c->prompt_index >= left) {
1.17 nicm 835: off = c->prompt_index - left + 1;
1.51 nicm 836: if (c->prompt_index == size)
1.1 nicm 837: left--;
838: size = left;
839: }
1.51 nicm 840: screen_write_nputs(
841: &ctx, left, &gc, utf8flag, "%s", c->prompt_buffer + off);
1.1 nicm 842:
1.55 nicm 843: for (i = len + size; i < c->tty.sx; i++)
844: screen_write_putc(&ctx, &gc, ' ');
1.1 nicm 845: }
846:
847: screen_write_stop(&ctx);
1.51 nicm 848:
849: /* Apply fake cursor. */
850: off = len + c->prompt_index - off;
851: gcp = grid_view_get_cell(c->status.grid, off, 0);
852: gcp->attr ^= GRID_ATTR_REVERSE;
1.1 nicm 853:
854: if (grid_compare(c->status.grid, old_status.grid) == 0) {
855: screen_free(&old_status);
856: return (0);
857: }
858: screen_free(&old_status);
859: return (1);
860: }
861:
862: /* Handle keys in prompt. */
863: void
864: status_prompt_key(struct client *c, int key)
865: {
866: struct paste_buffer *pb;
1.30 nicm 867: char *s, *first, *last, word[64], swapc;
1.66 ! nicm 868: const char *histstr;
1.53 nicm 869: u_char ch;
1.1 nicm 870: size_t size, n, off, idx;
871:
872: size = strlen(c->prompt_buffer);
873: switch (mode_key_lookup(&c->prompt_mdata, key)) {
1.20 nicm 874: case MODEKEYEDIT_CURSORLEFT:
1.1 nicm 875: if (c->prompt_index > 0) {
876: c->prompt_index--;
877: c->flags |= CLIENT_STATUS;
878: }
879: break;
1.20 nicm 880: case MODEKEYEDIT_SWITCHMODEAPPEND:
881: case MODEKEYEDIT_CURSORRIGHT:
1.1 nicm 882: if (c->prompt_index < size) {
883: c->prompt_index++;
884: c->flags |= CLIENT_STATUS;
885: }
886: break;
1.20 nicm 887: case MODEKEYEDIT_STARTOFLINE:
1.1 nicm 888: if (c->prompt_index != 0) {
889: c->prompt_index = 0;
890: c->flags |= CLIENT_STATUS;
891: }
892: break;
1.20 nicm 893: case MODEKEYEDIT_ENDOFLINE:
1.1 nicm 894: if (c->prompt_index != size) {
895: c->prompt_index = size;
896: c->flags |= CLIENT_STATUS;
897: }
898: break;
1.20 nicm 899: case MODEKEYEDIT_COMPLETE:
1.1 nicm 900: if (*c->prompt_buffer == '\0')
901: break;
902:
903: idx = c->prompt_index;
904: if (idx != 0)
905: idx--;
906:
907: /* Find the word we are in. */
908: first = c->prompt_buffer + idx;
909: while (first > c->prompt_buffer && *first != ' ')
910: first--;
911: while (*first == ' ')
912: first++;
913: last = c->prompt_buffer + idx;
914: while (*last != '\0' && *last != ' ')
915: last++;
916: while (*last == ' ')
917: last--;
918: if (*last != '\0')
919: last++;
920: if (last <= first ||
921: ((size_t) (last - first)) > (sizeof word) - 1)
922: break;
923: memcpy(word, first, last - first);
924: word[last - first] = '\0';
925:
926: /* And try to complete it. */
927: if ((s = status_prompt_complete(word)) == NULL)
928: break;
929:
930: /* Trim out word. */
931: n = size - (last - c->prompt_buffer) + 1; /* with \0 */
932: memmove(first, last, n);
933: size -= last - first;
934:
935: /* Insert the new word. */
1.55 nicm 936: size += strlen(s);
1.1 nicm 937: off = first - c->prompt_buffer;
1.55 nicm 938: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 1);
1.1 nicm 939: first = c->prompt_buffer + off;
1.55 nicm 940: memmove(first + strlen(s), first, n);
941: memcpy(first, s, strlen(s));
1.1 nicm 942:
943: c->prompt_index = (first - c->prompt_buffer) + strlen(s);
1.22 nicm 944: xfree(s);
1.1 nicm 945:
946: c->flags |= CLIENT_STATUS;
947: break;
1.20 nicm 948: case MODEKEYEDIT_BACKSPACE:
1.1 nicm 949: if (c->prompt_index != 0) {
950: if (c->prompt_index == size)
951: c->prompt_buffer[--c->prompt_index] = '\0';
952: else {
953: memmove(c->prompt_buffer + c->prompt_index - 1,
954: c->prompt_buffer + c->prompt_index,
955: size + 1 - c->prompt_index);
956: c->prompt_index--;
957: }
958: c->flags |= CLIENT_STATUS;
959: }
960: break;
1.55 nicm 961: case MODEKEYEDIT_DELETE:
1.1 nicm 962: if (c->prompt_index != size) {
963: memmove(c->prompt_buffer + c->prompt_index,
964: c->prompt_buffer + c->prompt_index + 1,
965: size + 1 - c->prompt_index);
1.18 nicm 966: c->flags |= CLIENT_STATUS;
967: }
1.26 nicm 968: break;
969: case MODEKEYEDIT_DELETELINE:
970: *c->prompt_buffer = '\0';
971: c->prompt_index = 0;
972: c->flags |= CLIENT_STATUS;
1.18 nicm 973: break;
1.20 nicm 974: case MODEKEYEDIT_DELETETOENDOFLINE:
1.18 nicm 975: if (c->prompt_index < size) {
976: c->prompt_buffer[c->prompt_index] = '\0';
1.1 nicm 977: c->flags |= CLIENT_STATUS;
978: }
979: break;
1.20 nicm 980: case MODEKEYEDIT_HISTORYUP:
1.66 ! nicm 981: histstr = status_prompt_up_history(&c->prompt_hindex);
! 982: if (histstr == NULL)
1.1 nicm 983: break;
984: xfree(c->prompt_buffer);
1.66 ! nicm 985: c->prompt_buffer = xstrdup(histstr);
1.1 nicm 986: c->prompt_index = strlen(c->prompt_buffer);
987: c->flags |= CLIENT_STATUS;
988: break;
1.20 nicm 989: case MODEKEYEDIT_HISTORYDOWN:
1.66 ! nicm 990: histstr = status_prompt_down_history(&c->prompt_hindex);
! 991: if (histstr == NULL)
1.65 nicm 992: break;
1.1 nicm 993: xfree(c->prompt_buffer);
1.66 ! nicm 994: c->prompt_buffer = xstrdup(histstr);
1.1 nicm 995: c->prompt_index = strlen(c->prompt_buffer);
996: c->flags |= CLIENT_STATUS;
997: break;
1.20 nicm 998: case MODEKEYEDIT_PASTE:
1.1 nicm 999: if ((pb = paste_get_top(&c->session->buffers)) == NULL)
1000: break;
1.32 nicm 1001: for (n = 0; n < pb->size; n++) {
1.53 nicm 1002: ch = (u_char) pb->data[n];
1003: if (ch < 32 || ch == 127)
1.32 nicm 1004: break;
1005: }
1.1 nicm 1006:
1007: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + n + 1);
1008: if (c->prompt_index == size) {
1009: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
1010: c->prompt_index += n;
1011: c->prompt_buffer[c->prompt_index] = '\0';
1012: } else {
1013: memmove(c->prompt_buffer + c->prompt_index + n,
1014: c->prompt_buffer + c->prompt_index,
1015: size + 1 - c->prompt_index);
1016: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
1017: c->prompt_index += n;
1018: }
1019:
1020: c->flags |= CLIENT_STATUS;
1.30 nicm 1021: break;
1022: case MODEKEYEDIT_TRANSPOSECHARS:
1023: idx = c->prompt_index;
1024: if (idx < size)
1025: idx++;
1026: if (idx >= 2) {
1027: swapc = c->prompt_buffer[idx - 2];
1028: c->prompt_buffer[idx - 2] = c->prompt_buffer[idx - 1];
1029: c->prompt_buffer[idx - 1] = swapc;
1030: c->prompt_index = idx;
1031: c->flags |= CLIENT_STATUS;
1032: }
1.1 nicm 1033: break;
1.55 nicm 1034: case MODEKEYEDIT_ENTER:
1.25 nicm 1035: if (*c->prompt_buffer != '\0')
1.65 nicm 1036: status_prompt_add_history(c->prompt_buffer);
1.25 nicm 1037: if (c->prompt_callbackfn(c->prompt_data, c->prompt_buffer) == 0)
1038: status_prompt_clear(c);
1039: break;
1.20 nicm 1040: case MODEKEYEDIT_CANCEL:
1.12 nicm 1041: if (c->prompt_callbackfn(c->prompt_data, NULL) == 0)
1.1 nicm 1042: status_prompt_clear(c);
1043: break;
1.20 nicm 1044: case MODEKEY_OTHER:
1.61 nicm 1045: if ((key & 0xff00) != 0 || key < 32 || key == 127)
1.1 nicm 1046: break;
1047: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 2);
1048:
1049: if (c->prompt_index == size) {
1050: c->prompt_buffer[c->prompt_index++] = key;
1051: c->prompt_buffer[c->prompt_index] = '\0';
1052: } else {
1053: memmove(c->prompt_buffer + c->prompt_index + 1,
1054: c->prompt_buffer + c->prompt_index,
1055: size + 1 - c->prompt_index);
1056: c->prompt_buffer[c->prompt_index++] = key;
1057: }
1058:
1059: if (c->prompt_flags & PROMPT_SINGLE) {
1.12 nicm 1060: if (c->prompt_callbackfn(
1.1 nicm 1061: c->prompt_data, c->prompt_buffer) == 0)
1062: status_prompt_clear(c);
1063: }
1064:
1065: c->flags |= CLIENT_STATUS;
1066: break;
1067: default:
1068: break;
1069: }
1070: }
1071:
1.65 nicm 1072: /* Get previous line from the history. */
1073: const char *
1074: status_prompt_up_history(u_int *idx)
1075: {
1076: u_int size;
1077:
1078: /*
1079: * History runs from 0 to size - 1.
1080: *
1081: * Index is from 0 to size. Zero is empty.
1082: */
1083:
1084: size = ARRAY_LENGTH(&status_prompt_history);
1085: if (size == 0 || *idx == size)
1086: return (NULL);
1087: (*idx)++;
1088: return (ARRAY_ITEM(&status_prompt_history, size - *idx));
1089: }
1090:
1091: /* Get next line from the history. */
1092: const char *
1093: status_prompt_down_history(u_int *idx)
1094: {
1095: u_int size;
1096:
1097: size = ARRAY_LENGTH(&status_prompt_history);
1098: if (size == 0 || *idx == 0)
1099: return ("");
1100: (*idx)--;
1101: if (*idx == 0)
1102: return ("");
1103: return (ARRAY_ITEM(&status_prompt_history, size - *idx));
1104: }
1105:
1.1 nicm 1106: /* Add line to the history. */
1107: void
1.65 nicm 1108: status_prompt_add_history(const char *line)
1.1 nicm 1109: {
1.65 nicm 1110: u_int size;
1111:
1112: size = ARRAY_LENGTH(&status_prompt_history);
1113: if (size > 0 && strcmp(ARRAY_LAST(&status_prompt_history), line) == 0)
1.1 nicm 1114: return;
1115:
1.65 nicm 1116: if (size == PROMPT_HISTORY) {
1117: xfree(ARRAY_FIRST(&status_prompt_history));
1118: ARRAY_REMOVE(&status_prompt_history, 0);
1.1 nicm 1119: }
1120:
1.65 nicm 1121: ARRAY_ADD(&status_prompt_history, xstrdup(line));
1.1 nicm 1122: }
1123:
1124: /* Complete word. */
1125: char *
1126: status_prompt_complete(const char *s)
1127: {
1128: const struct cmd_entry **cmdent;
1.54 nicm 1129: const struct set_option_entry *entry;
1.1 nicm 1130: ARRAY_DECL(, const char *) list;
1131: char *prefix, *s2;
1.9 nicm 1132: u_int i;
1.1 nicm 1133: size_t j;
1134:
1135: if (*s == '\0')
1136: return (NULL);
1137:
1138: /* First, build a list of all the possible matches. */
1139: ARRAY_INIT(&list);
1140: for (cmdent = cmd_table; *cmdent != NULL; cmdent++) {
1141: if (strncmp((*cmdent)->name, s, strlen(s)) == 0)
1142: ARRAY_ADD(&list, (*cmdent)->name);
1.56 nicm 1143: }
1144: for (entry = set_option_table; entry->name != NULL; entry++) {
1145: if (strncmp(entry->name, s, strlen(s)) == 0)
1146: ARRAY_ADD(&list, entry->name);
1.1 nicm 1147: }
1.54 nicm 1148: for (entry = set_session_option_table; entry->name != NULL; entry++) {
1149: if (strncmp(entry->name, s, strlen(s)) == 0)
1150: ARRAY_ADD(&list, entry->name);
1151: }
1152: for (entry = set_window_option_table; entry->name != NULL; entry++) {
1153: if (strncmp(entry->name, s, strlen(s)) == 0)
1154: ARRAY_ADD(&list, entry->name);
1.1 nicm 1155: }
1156:
1157: /* If none, bail now. */
1158: if (ARRAY_LENGTH(&list) == 0) {
1159: ARRAY_FREE(&list);
1160: return (NULL);
1161: }
1162:
1163: /* If an exact match, return it, with a trailing space. */
1164: if (ARRAY_LENGTH(&list) == 1) {
1165: xasprintf(&s2, "%s ", ARRAY_FIRST(&list));
1166: ARRAY_FREE(&list);
1167: return (s2);
1168: }
1169:
1170: /* Now loop through the list and find the longest common prefix. */
1171: prefix = xstrdup(ARRAY_FIRST(&list));
1172: for (i = 1; i < ARRAY_LENGTH(&list); i++) {
1173: s = ARRAY_ITEM(&list, i);
1174:
1175: j = strlen(s);
1176: if (j > strlen(prefix))
1177: j = strlen(prefix);
1178: for (; j > 0; j--) {
1179: if (prefix[j - 1] != s[j - 1])
1180: prefix[j - 1] = '\0';
1181: }
1182: }
1183:
1184: ARRAY_FREE(&list);
1185: return (prefix);
1186: }
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