Annotation of src/usr.bin/tmux/status.c, Revision 1.69
1.69 ! nicm 1: /* $OpenBSD: status.c,v 1.68 2010/12/30 23:16:18 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':
1.67 nicm 396: ptr = window_printable_flags(s, wl);
397: freeptr = ptr;
1.47 nicm 398: goto do_replace;
1.46 nicm 399: case '[':
1.55 nicm 400: /*
1.46 nicm 401: * Embedded style, handled at display time. Leave present and
402: * skip input until ].
403: */
404: ch = ']';
405: goto skip_to;
406: case '#':
1.49 nicm 407: *(*optr)++ = '#';
1.46 nicm 408: break;
409: }
410:
411: return;
1.55 nicm 412:
1.46 nicm 413: do_replace:
414: ptrlen = strlen(ptr);
415: if ((size_t) limit < ptrlen)
416: ptrlen = limit;
417:
418: if (*optr + ptrlen >= out + outsize - 1)
419: return;
420: while (ptrlen > 0 && *ptr != '\0') {
421: *(*optr)++ = *ptr++;
422: ptrlen--;
423: }
424:
425: if (freeptr != NULL)
426: xfree(freeptr);
427: return;
428:
429: skip_to:
430: *(*optr)++ = '#';
431:
432: (*iptr)--; /* include ch */
433: while (**iptr != ch && **iptr != '\0') {
434: if (*optr >= out + outsize - 1)
435: break;
436: *(*optr)++ = *(*iptr)++;
437: }
438: }
439:
440: /* Replace special sequences in fmt. */
441: char *
1.47 nicm 442: status_replace(struct client *c,
443: struct winlink *wl, const char *fmt, time_t t, int jobsflag)
1.46 nicm 444: {
1.1 nicm 445: static char out[BUFSIZ];
1.46 nicm 446: char in[BUFSIZ], ch, *iptr, *optr;
1.47 nicm 447:
1.1 nicm 448: strftime(in, sizeof in, fmt, localtime(&t));
449: in[(sizeof in) - 1] = '\0';
450:
451: iptr = in;
452: optr = out;
453:
454: while (*iptr != '\0') {
455: if (optr >= out + (sizeof out) - 1)
456: break;
1.46 nicm 457: ch = *iptr++;
458:
459: if (ch != '#') {
1.1 nicm 460: *optr++ = ch;
1.46 nicm 461: continue;
1.1 nicm 462: }
1.47 nicm 463: status_replace1(c, wl, &iptr, &optr, out, sizeof out, jobsflag);
1.1 nicm 464: }
465: *optr = '\0';
466:
467: return (xstrdup(out));
468: }
469:
1.46 nicm 470: /* Figure out job name and get its result, starting it off if necessary. */
1.1 nicm 471: char *
1.38 nicm 472: status_job(struct client *c, char **iptr)
1.1 nicm 473: {
1.38 nicm 474: struct job *job;
1.40 nicm 475: char *cmd;
1.38 nicm 476: int lastesc;
477: size_t len;
1.1 nicm 478:
479: if (**iptr == '\0')
480: return (NULL);
481: if (**iptr == ')') { /* no command given */
482: (*iptr)++;
483: return (NULL);
484: }
485:
486: cmd = xmalloc(strlen(*iptr) + 1);
487: len = 0;
488:
489: lastesc = 0;
490: for (; **iptr != '\0'; (*iptr)++) {
491: if (!lastesc && **iptr == ')')
492: break; /* unescaped ) is the end */
493: if (!lastesc && **iptr == '\\') {
494: lastesc = 1;
495: continue; /* skip \ if not escaped */
496: }
497: lastesc = 0;
498: cmd[len++] = **iptr;
499: }
1.38 nicm 500: if (**iptr == '\0') /* no terminating ) */ {
501: xfree(cmd);
502: return (NULL);
503: }
1.1 nicm 504: (*iptr)++; /* skip final ) */
505: cmd[len] = '\0';
506:
1.38 nicm 507: job = job_get(&c->status_jobs, cmd);
508: if (job == NULL) {
1.39 nicm 509: job = job_add(&c->status_jobs,
510: JOB_PERSIST, c, cmd, status_job_callback, xfree, NULL);
1.38 nicm 511: job_run(job);
512: }
1.60 nicm 513: xfree(cmd);
1.38 nicm 514: if (job->data == NULL)
515: return (xstrdup(""));
516: return (xstrdup(job->data));
517: }
1.1 nicm 518:
1.46 nicm 519: /* Job has finished: save its result. */
1.38 nicm 520: void
521: status_job_callback(struct job *job)
522: {
1.41 nicm 523: char *line, *buf;
1.38 nicm 524: size_t len;
525:
1.41 nicm 526: buf = NULL;
527: if ((line = evbuffer_readline(job->event->input)) == NULL) {
528: len = EVBUFFER_LENGTH(job->event->input);
529: buf = xmalloc(len + 1);
530: if (len != 0)
531: memcpy(buf, EVBUFFER_DATA(job->event->input), len);
532: buf[len] = '\0';
533: }
1.38 nicm 534:
535: if (job->data != NULL)
536: xfree(job->data);
537: else
538: server_redraw_client(job->client);
1.1 nicm 539:
1.57 nicm 540: if (line == NULL)
541: job->data = buf;
542: else
543: job->data = xstrdup(line);
1.1 nicm 544: }
545:
1.46 nicm 546: /* Return winlink status line entry and adjust gc as necessary. */
1.1 nicm 547: char *
1.47 nicm 548: status_print(
549: struct client *c, struct winlink *wl, time_t t, struct grid_cell *gc)
1.1 nicm 550: {
1.33 nicm 551: struct options *oo = &wl->window->options;
1.47 nicm 552: struct session *s = c->session;
553: const char *fmt;
554: char *text;
1.33 nicm 555: u_char fg, bg, attr;
1.1 nicm 556:
1.33 nicm 557: fg = options_get_number(oo, "window-status-fg");
1.1 nicm 558: if (fg != 8)
1.33 nicm 559: colour_set_fg(gc, fg);
560: bg = options_get_number(oo, "window-status-bg");
1.1 nicm 561: if (bg != 8)
1.33 nicm 562: colour_set_bg(gc, bg);
563: attr = options_get_number(oo, "window-status-attr");
1.1 nicm 564: if (attr != 0)
565: gc->attr = attr;
1.47 nicm 566: fmt = options_get_string(oo, "window-status-format");
1.14 nicm 567: if (wl == s->curw) {
1.33 nicm 568: fg = options_get_number(oo, "window-status-current-fg");
1.14 nicm 569: if (fg != 8)
1.33 nicm 570: colour_set_fg(gc, fg);
571: bg = options_get_number(oo, "window-status-current-bg");
1.14 nicm 572: if (bg != 8)
1.33 nicm 573: colour_set_bg(gc, bg);
574: attr = options_get_number(oo, "window-status-current-attr");
1.14 nicm 575: if (attr != 0)
576: gc->attr = attr;
1.47 nicm 577: fmt = options_get_string(oo, "window-status-current-format");
1.14 nicm 578: }
1.1 nicm 579:
1.63 nicm 580: if (wl->flags & WINLINK_ALERTFLAGS) {
1.62 nicm 581: fg = options_get_number(oo, "window-status-alert-fg");
582: if (fg != 8)
583: colour_set_fg(gc, fg);
584: bg = options_get_number(oo, "window-status-alert-bg");
585: if (bg != 8)
586: colour_set_bg(gc, bg);
587: attr = options_get_number(oo, "window-status-alert-attr");
588: if (attr != 0)
589: gc->attr = attr;
590: }
1.1 nicm 591:
1.47 nicm 592: text = status_replace(c, wl, fmt, t, 1);
1.1 nicm 593: return (text);
594: }
595:
1.46 nicm 596: /* Set a status line message. */
1.10 nicm 597: void printflike2
598: status_message_set(struct client *c, const char *fmt, ...)
1.1 nicm 599: {
1.44 nicm 600: struct timeval tv;
601: struct session *s = c->session;
602: struct message_entry *msg;
603: va_list ap;
604: int delay;
605: u_int i, limit;
1.1 nicm 606:
1.12 nicm 607: status_prompt_clear(c);
608: status_message_clear(c);
609:
1.28 nicm 610: va_start(ap, fmt);
611: xvasprintf(&c->message_string, fmt, ap);
612: va_end(ap);
613:
1.44 nicm 614: ARRAY_EXPAND(&c->message_log, 1);
615: msg = &ARRAY_LAST(&c->message_log);
616: msg->msg_time = time(NULL);
617: msg->msg = xstrdup(c->message_string);
618:
619: if (s == NULL)
620: limit = 0;
621: else
622: limit = options_get_number(&s->options, "message-limit");
1.50 nicm 623: if (ARRAY_LENGTH(&c->message_log) > limit) {
624: limit = ARRAY_LENGTH(&c->message_log) - limit;
625: for (i = 0; i < limit; i++) {
626: msg = &ARRAY_FIRST(&c->message_log);
627: xfree(msg->msg);
628: ARRAY_REMOVE(&c->message_log, 0);
629: }
1.44 nicm 630: }
631:
1.1 nicm 632: delay = options_get_number(&c->session->options, "display-time");
633: tv.tv_sec = delay / 1000;
634: tv.tv_usec = (delay % 1000) * 1000L;
1.44 nicm 635:
1.42 nicm 636: evtimer_del(&c->message_timer);
637: evtimer_set(&c->message_timer, status_message_callback, c);
638: evtimer_add(&c->message_timer, &tv);
1.1 nicm 639:
640: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
641: c->flags |= CLIENT_STATUS;
642: }
643:
1.46 nicm 644: /* Clear status line message. */
1.1 nicm 645: void
646: status_message_clear(struct client *c)
647: {
648: if (c->message_string == NULL)
649: return;
650:
651: xfree(c->message_string);
652: c->message_string = NULL;
653:
654: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 655: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 656:
657: screen_reinit(&c->status);
1.42 nicm 658: }
659:
1.46 nicm 660: /* Clear status line message after timer expires. */
1.52 nicm 661: /* ARGSUSED */
1.42 nicm 662: void
663: status_message_callback(unused int fd, unused short event, void *data)
664: {
665: struct client *c = data;
666:
667: status_message_clear(c);
1.1 nicm 668: }
669:
670: /* Draw client message on status line of present else on last line. */
671: int
672: status_message_redraw(struct client *c)
673: {
674: struct screen_write_ctx ctx;
675: struct session *s = c->session;
676: struct screen old_status;
677: size_t len;
678: struct grid_cell gc;
1.51 nicm 679: int utf8flag;
1.1 nicm 680:
681: if (c->tty.sx == 0 || c->tty.sy == 0)
682: return (0);
683: memcpy(&old_status, &c->status, sizeof old_status);
684: screen_init(&c->status, c->tty.sx, 1, 0);
685:
1.51 nicm 686: utf8flag = options_get_number(&s->options, "status-utf8");
687:
688: len = screen_write_strlen(utf8flag, "%s", c->message_string);
1.1 nicm 689: if (len > c->tty.sx)
690: len = c->tty.sx;
691:
692: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 693: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
694: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 695: gc.attr |= options_get_number(&s->options, "message-attr");
696:
697: screen_write_start(&ctx, NULL, &c->status);
698:
699: screen_write_cursormove(&ctx, 0, 0);
1.51 nicm 700: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->message_string);
1.1 nicm 701: for (; len < c->tty.sx; len++)
702: screen_write_putc(&ctx, &gc, ' ');
703:
704: screen_write_stop(&ctx);
705:
706: if (grid_compare(c->status.grid, old_status.grid) == 0) {
707: screen_free(&old_status);
708: return (0);
709: }
710: screen_free(&old_status);
711: return (1);
712: }
713:
1.46 nicm 714: /* Enable status line prompt. */
1.1 nicm 715: void
1.12 nicm 716: status_prompt_set(struct client *c, const char *msg,
717: int (*callbackfn)(void *, const char *), void (*freefn)(void *),
718: void *data, int flags)
1.1 nicm 719: {
1.20 nicm 720: int keys;
721:
1.12 nicm 722: status_message_clear(c);
723: status_prompt_clear(c);
724:
1.1 nicm 725: c->prompt_string = xstrdup(msg);
726:
727: c->prompt_buffer = xstrdup("");
728: c->prompt_index = 0;
729:
1.12 nicm 730: c->prompt_callbackfn = callbackfn;
731: c->prompt_freefn = freefn;
1.1 nicm 732: c->prompt_data = data;
733:
734: c->prompt_hindex = 0;
735:
736: c->prompt_flags = flags;
737:
1.20 nicm 738: keys = options_get_number(&c->session->options, "status-keys");
739: if (keys == MODEKEY_EMACS)
1.21 nicm 740: mode_key_init(&c->prompt_mdata, &mode_key_tree_emacs_edit);
1.20 nicm 741: else
1.21 nicm 742: mode_key_init(&c->prompt_mdata, &mode_key_tree_vi_edit);
1.1 nicm 743:
744: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
745: c->flags |= CLIENT_STATUS;
746: }
747:
1.46 nicm 748: /* Remove status line prompt. */
1.1 nicm 749: void
750: status_prompt_clear(struct client *c)
751: {
1.55 nicm 752: if (c->prompt_string == NULL)
1.1 nicm 753: return;
754:
1.12 nicm 755: if (c->prompt_freefn != NULL && c->prompt_data != NULL)
756: c->prompt_freefn(c->prompt_data);
1.1 nicm 757:
758: xfree(c->prompt_string);
759: c->prompt_string = NULL;
760:
761: xfree(c->prompt_buffer);
762: c->prompt_buffer = NULL;
763:
764: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 765: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 766:
767: screen_reinit(&c->status);
1.27 nicm 768: }
769:
1.46 nicm 770: /* Update status line prompt with a new prompt string. */
1.27 nicm 771: void
772: status_prompt_update(struct client *c, const char *msg)
773: {
774: xfree(c->prompt_string);
775: c->prompt_string = xstrdup(msg);
776:
777: *c->prompt_buffer = '\0';
778: c->prompt_index = 0;
779:
780: c->prompt_hindex = 0;
781:
782: c->flags |= CLIENT_STATUS;
1.1 nicm 783: }
784:
785: /* Draw client prompt on status line of present else on last line. */
786: int
787: status_prompt_redraw(struct client *c)
788: {
1.51 nicm 789: struct screen_write_ctx ctx;
1.1 nicm 790: struct session *s = c->session;
791: struct screen old_status;
1.29 nicm 792: size_t i, size, left, len, off;
1.51 nicm 793: struct grid_cell gc, *gcp;
794: int utf8flag;
1.1 nicm 795:
796: if (c->tty.sx == 0 || c->tty.sy == 0)
797: return (0);
798: memcpy(&old_status, &c->status, sizeof old_status);
799: screen_init(&c->status, c->tty.sx, 1, 0);
800:
1.51 nicm 801: utf8flag = options_get_number(&s->options, "status-utf8");
802:
803: len = screen_write_strlen(utf8flag, "%s", c->prompt_string);
1.1 nicm 804: if (len > c->tty.sx)
805: len = c->tty.sx;
1.51 nicm 806: off = 0;
1.1 nicm 807:
808: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 809: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
810: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 811: gc.attr |= options_get_number(&s->options, "message-attr");
812:
813: screen_write_start(&ctx, NULL, &c->status);
814:
815: screen_write_cursormove(&ctx, 0, 0);
1.51 nicm 816: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->prompt_string);
1.1 nicm 817:
818: left = c->tty.sx - len;
819: if (left != 0) {
1.51 nicm 820: size = screen_write_strlen(utf8flag, "%s", c->prompt_buffer);
821: if (c->prompt_index >= left) {
1.17 nicm 822: off = c->prompt_index - left + 1;
1.51 nicm 823: if (c->prompt_index == size)
1.1 nicm 824: left--;
825: size = left;
826: }
1.51 nicm 827: screen_write_nputs(
828: &ctx, left, &gc, utf8flag, "%s", c->prompt_buffer + off);
1.1 nicm 829:
1.55 nicm 830: for (i = len + size; i < c->tty.sx; i++)
831: screen_write_putc(&ctx, &gc, ' ');
1.1 nicm 832: }
833:
834: screen_write_stop(&ctx);
1.51 nicm 835:
836: /* Apply fake cursor. */
837: off = len + c->prompt_index - off;
838: gcp = grid_view_get_cell(c->status.grid, off, 0);
839: gcp->attr ^= GRID_ATTR_REVERSE;
1.1 nicm 840:
841: if (grid_compare(c->status.grid, old_status.grid) == 0) {
842: screen_free(&old_status);
843: return (0);
844: }
845: screen_free(&old_status);
846: return (1);
847: }
848:
849: /* Handle keys in prompt. */
850: void
851: status_prompt_key(struct client *c, int key)
852: {
853: struct paste_buffer *pb;
1.30 nicm 854: char *s, *first, *last, word[64], swapc;
1.66 nicm 855: const char *histstr;
1.53 nicm 856: u_char ch;
1.1 nicm 857: size_t size, n, off, idx;
858:
859: size = strlen(c->prompt_buffer);
860: switch (mode_key_lookup(&c->prompt_mdata, key)) {
1.20 nicm 861: case MODEKEYEDIT_CURSORLEFT:
1.1 nicm 862: if (c->prompt_index > 0) {
863: c->prompt_index--;
864: c->flags |= CLIENT_STATUS;
865: }
866: break;
1.20 nicm 867: case MODEKEYEDIT_SWITCHMODEAPPEND:
868: case MODEKEYEDIT_CURSORRIGHT:
1.1 nicm 869: if (c->prompt_index < size) {
870: c->prompt_index++;
871: c->flags |= CLIENT_STATUS;
872: }
873: break;
1.20 nicm 874: case MODEKEYEDIT_STARTOFLINE:
1.1 nicm 875: if (c->prompt_index != 0) {
876: c->prompt_index = 0;
877: c->flags |= CLIENT_STATUS;
878: }
879: break;
1.20 nicm 880: case MODEKEYEDIT_ENDOFLINE:
1.1 nicm 881: if (c->prompt_index != size) {
882: c->prompt_index = size;
883: c->flags |= CLIENT_STATUS;
884: }
885: break;
1.20 nicm 886: case MODEKEYEDIT_COMPLETE:
1.1 nicm 887: if (*c->prompt_buffer == '\0')
888: break;
889:
890: idx = c->prompt_index;
891: if (idx != 0)
892: idx--;
893:
894: /* Find the word we are in. */
895: first = c->prompt_buffer + idx;
896: while (first > c->prompt_buffer && *first != ' ')
897: first--;
898: while (*first == ' ')
899: first++;
900: last = c->prompt_buffer + idx;
901: while (*last != '\0' && *last != ' ')
902: last++;
903: while (*last == ' ')
904: last--;
905: if (*last != '\0')
906: last++;
907: if (last <= first ||
908: ((size_t) (last - first)) > (sizeof word) - 1)
909: break;
910: memcpy(word, first, last - first);
911: word[last - first] = '\0';
912:
913: /* And try to complete it. */
914: if ((s = status_prompt_complete(word)) == NULL)
915: break;
916:
917: /* Trim out word. */
918: n = size - (last - c->prompt_buffer) + 1; /* with \0 */
919: memmove(first, last, n);
920: size -= last - first;
921:
922: /* Insert the new word. */
1.55 nicm 923: size += strlen(s);
1.1 nicm 924: off = first - c->prompt_buffer;
1.55 nicm 925: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 1);
1.1 nicm 926: first = c->prompt_buffer + off;
1.55 nicm 927: memmove(first + strlen(s), first, n);
928: memcpy(first, s, strlen(s));
1.1 nicm 929:
930: c->prompt_index = (first - c->prompt_buffer) + strlen(s);
1.22 nicm 931: xfree(s);
1.1 nicm 932:
933: c->flags |= CLIENT_STATUS;
934: break;
1.20 nicm 935: case MODEKEYEDIT_BACKSPACE:
1.1 nicm 936: if (c->prompt_index != 0) {
937: if (c->prompt_index == size)
938: c->prompt_buffer[--c->prompt_index] = '\0';
939: else {
940: memmove(c->prompt_buffer + c->prompt_index - 1,
941: c->prompt_buffer + c->prompt_index,
942: size + 1 - c->prompt_index);
943: c->prompt_index--;
944: }
945: c->flags |= CLIENT_STATUS;
946: }
947: break;
1.55 nicm 948: case MODEKEYEDIT_DELETE:
1.1 nicm 949: if (c->prompt_index != size) {
950: memmove(c->prompt_buffer + c->prompt_index,
951: c->prompt_buffer + c->prompt_index + 1,
952: size + 1 - c->prompt_index);
1.18 nicm 953: c->flags |= CLIENT_STATUS;
954: }
1.26 nicm 955: break;
956: case MODEKEYEDIT_DELETELINE:
957: *c->prompt_buffer = '\0';
958: c->prompt_index = 0;
959: c->flags |= CLIENT_STATUS;
1.18 nicm 960: break;
1.20 nicm 961: case MODEKEYEDIT_DELETETOENDOFLINE:
1.18 nicm 962: if (c->prompt_index < size) {
963: c->prompt_buffer[c->prompt_index] = '\0';
1.1 nicm 964: c->flags |= CLIENT_STATUS;
965: }
966: break;
1.20 nicm 967: case MODEKEYEDIT_HISTORYUP:
1.66 nicm 968: histstr = status_prompt_up_history(&c->prompt_hindex);
969: if (histstr == NULL)
1.1 nicm 970: break;
971: xfree(c->prompt_buffer);
1.66 nicm 972: c->prompt_buffer = xstrdup(histstr);
1.1 nicm 973: c->prompt_index = strlen(c->prompt_buffer);
974: c->flags |= CLIENT_STATUS;
975: break;
1.20 nicm 976: case MODEKEYEDIT_HISTORYDOWN:
1.66 nicm 977: histstr = status_prompt_down_history(&c->prompt_hindex);
978: if (histstr == NULL)
1.65 nicm 979: break;
1.1 nicm 980: xfree(c->prompt_buffer);
1.66 nicm 981: c->prompt_buffer = xstrdup(histstr);
1.1 nicm 982: c->prompt_index = strlen(c->prompt_buffer);
983: c->flags |= CLIENT_STATUS;
984: break;
1.20 nicm 985: case MODEKEYEDIT_PASTE:
1.68 nicm 986: if ((pb = paste_get_top(&global_buffers)) == NULL)
1.1 nicm 987: break;
1.32 nicm 988: for (n = 0; n < pb->size; n++) {
1.53 nicm 989: ch = (u_char) pb->data[n];
990: if (ch < 32 || ch == 127)
1.32 nicm 991: break;
992: }
1.1 nicm 993:
994: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + n + 1);
995: if (c->prompt_index == size) {
996: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
997: c->prompt_index += n;
998: c->prompt_buffer[c->prompt_index] = '\0';
999: } else {
1000: memmove(c->prompt_buffer + c->prompt_index + n,
1001: c->prompt_buffer + c->prompt_index,
1002: size + 1 - c->prompt_index);
1003: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
1004: c->prompt_index += n;
1005: }
1006:
1007: c->flags |= CLIENT_STATUS;
1.30 nicm 1008: break;
1009: case MODEKEYEDIT_TRANSPOSECHARS:
1010: idx = c->prompt_index;
1011: if (idx < size)
1012: idx++;
1013: if (idx >= 2) {
1014: swapc = c->prompt_buffer[idx - 2];
1015: c->prompt_buffer[idx - 2] = c->prompt_buffer[idx - 1];
1016: c->prompt_buffer[idx - 1] = swapc;
1017: c->prompt_index = idx;
1018: c->flags |= CLIENT_STATUS;
1019: }
1.1 nicm 1020: break;
1.55 nicm 1021: case MODEKEYEDIT_ENTER:
1.25 nicm 1022: if (*c->prompt_buffer != '\0')
1.65 nicm 1023: status_prompt_add_history(c->prompt_buffer);
1.25 nicm 1024: if (c->prompt_callbackfn(c->prompt_data, c->prompt_buffer) == 0)
1025: status_prompt_clear(c);
1026: break;
1.20 nicm 1027: case MODEKEYEDIT_CANCEL:
1.12 nicm 1028: if (c->prompt_callbackfn(c->prompt_data, NULL) == 0)
1.1 nicm 1029: status_prompt_clear(c);
1030: break;
1.20 nicm 1031: case MODEKEY_OTHER:
1.61 nicm 1032: if ((key & 0xff00) != 0 || key < 32 || key == 127)
1.1 nicm 1033: break;
1034: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 2);
1035:
1036: if (c->prompt_index == size) {
1037: c->prompt_buffer[c->prompt_index++] = key;
1038: c->prompt_buffer[c->prompt_index] = '\0';
1039: } else {
1040: memmove(c->prompt_buffer + c->prompt_index + 1,
1041: c->prompt_buffer + c->prompt_index,
1042: size + 1 - c->prompt_index);
1043: c->prompt_buffer[c->prompt_index++] = key;
1044: }
1045:
1046: if (c->prompt_flags & PROMPT_SINGLE) {
1.12 nicm 1047: if (c->prompt_callbackfn(
1.1 nicm 1048: c->prompt_data, c->prompt_buffer) == 0)
1049: status_prompt_clear(c);
1050: }
1051:
1052: c->flags |= CLIENT_STATUS;
1053: break;
1054: default:
1055: break;
1056: }
1057: }
1058:
1.65 nicm 1059: /* Get previous line from the history. */
1060: const char *
1061: status_prompt_up_history(u_int *idx)
1062: {
1063: u_int size;
1064:
1065: /*
1066: * History runs from 0 to size - 1.
1067: *
1068: * Index is from 0 to size. Zero is empty.
1069: */
1070:
1071: size = ARRAY_LENGTH(&status_prompt_history);
1072: if (size == 0 || *idx == size)
1073: return (NULL);
1074: (*idx)++;
1075: return (ARRAY_ITEM(&status_prompt_history, size - *idx));
1076: }
1077:
1078: /* Get next line from the history. */
1079: const char *
1080: status_prompt_down_history(u_int *idx)
1081: {
1082: u_int size;
1083:
1084: size = ARRAY_LENGTH(&status_prompt_history);
1085: if (size == 0 || *idx == 0)
1086: return ("");
1087: (*idx)--;
1088: if (*idx == 0)
1089: return ("");
1090: return (ARRAY_ITEM(&status_prompt_history, size - *idx));
1091: }
1092:
1.1 nicm 1093: /* Add line to the history. */
1094: void
1.65 nicm 1095: status_prompt_add_history(const char *line)
1.1 nicm 1096: {
1.65 nicm 1097: u_int size;
1098:
1099: size = ARRAY_LENGTH(&status_prompt_history);
1100: if (size > 0 && strcmp(ARRAY_LAST(&status_prompt_history), line) == 0)
1.1 nicm 1101: return;
1102:
1.65 nicm 1103: if (size == PROMPT_HISTORY) {
1104: xfree(ARRAY_FIRST(&status_prompt_history));
1105: ARRAY_REMOVE(&status_prompt_history, 0);
1.1 nicm 1106: }
1107:
1.65 nicm 1108: ARRAY_ADD(&status_prompt_history, xstrdup(line));
1.1 nicm 1109: }
1110:
1111: /* Complete word. */
1112: char *
1113: status_prompt_complete(const char *s)
1114: {
1.69 ! nicm 1115: const struct cmd_entry **cmdent;
! 1116: const struct options_table_entry *oe;
! 1117: ARRAY_DECL(, const char *) list;
! 1118: char *prefix, *s2;
! 1119: u_int i;
! 1120: size_t j;
1.1 nicm 1121:
1122: if (*s == '\0')
1123: return (NULL);
1124:
1125: /* First, build a list of all the possible matches. */
1126: ARRAY_INIT(&list);
1127: for (cmdent = cmd_table; *cmdent != NULL; cmdent++) {
1128: if (strncmp((*cmdent)->name, s, strlen(s)) == 0)
1129: ARRAY_ADD(&list, (*cmdent)->name);
1.56 nicm 1130: }
1.69 ! nicm 1131: for (oe = server_options_table; oe->name != NULL; oe++) {
! 1132: if (strncmp(oe->name, s, strlen(s)) == 0)
! 1133: ARRAY_ADD(&list, oe->name);
! 1134: }
! 1135: for (oe = session_options_table; oe->name != NULL; oe++) {
! 1136: if (strncmp(oe->name, s, strlen(s)) == 0)
! 1137: ARRAY_ADD(&list, oe->name);
! 1138: }
! 1139: for (oe = window_options_table; oe->name != NULL; oe++) {
! 1140: if (strncmp(oe->name, s, strlen(s)) == 0)
! 1141: ARRAY_ADD(&list, oe->name);
1.1 nicm 1142: }
1143:
1144: /* If none, bail now. */
1145: if (ARRAY_LENGTH(&list) == 0) {
1146: ARRAY_FREE(&list);
1147: return (NULL);
1148: }
1149:
1150: /* If an exact match, return it, with a trailing space. */
1151: if (ARRAY_LENGTH(&list) == 1) {
1152: xasprintf(&s2, "%s ", ARRAY_FIRST(&list));
1153: ARRAY_FREE(&list);
1154: return (s2);
1155: }
1156:
1157: /* Now loop through the list and find the longest common prefix. */
1158: prefix = xstrdup(ARRAY_FIRST(&list));
1159: for (i = 1; i < ARRAY_LENGTH(&list); i++) {
1160: s = ARRAY_ITEM(&list, i);
1161:
1162: j = strlen(s);
1163: if (j > strlen(prefix))
1164: j = strlen(prefix);
1165: for (; j > 0; j--) {
1166: if (prefix[j - 1] != s[j - 1])
1167: prefix[j - 1] = '\0';
1168: }
1169: }
1170:
1171: ARRAY_FREE(&list);
1172: return (prefix);
1173: }
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