Annotation of src/usr.bin/tmux/status.c, Revision 1.59
1.59 ! nicm 1: /* $OpenBSD: status.c,v 1.58 2010/01/27 20:26:42 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:
44: void status_prompt_add_history(struct client *);
45: char *status_prompt_complete(const char *);
46:
1.48 nicm 47: /* Retrieve options for left string. */
48: char *
49: status_redraw_get_left(struct client *c,
50: time_t t, int utf8flag, struct grid_cell *gc, size_t *size)
51: {
52: struct session *s = c->session;
53: char *left;
54: u_char fg, bg, attr;
55: size_t leftlen;
56:
57: fg = options_get_number(&s->options, "status-left-fg");
58: if (fg != 8)
59: colour_set_fg(gc, fg);
60: bg = options_get_number(&s->options, "status-left-bg");
61: if (bg != 8)
62: colour_set_bg(gc, bg);
63: attr = options_get_number(&s->options, "status-left-attr");
64: if (attr != 0)
65: gc->attr = attr;
66:
67: left = status_replace(
68: c, NULL, options_get_string(&s->options, "status-left"), t, 1);
69:
70: *size = options_get_number(&s->options, "status-left-length");
71: leftlen = screen_write_cstrlen(utf8flag, "%s", left);
72: if (leftlen < *size)
73: *size = leftlen;
74: return (left);
75: }
76:
77: /* Retrieve options for right string. */
78: char *
79: status_redraw_get_right(struct client *c,
80: time_t t, int utf8flag, struct grid_cell *gc, size_t *size)
81: {
82: struct session *s = c->session;
83: char *right;
84: u_char fg, bg, attr;
85: size_t rightlen;
86:
87: fg = options_get_number(&s->options, "status-right-fg");
88: if (fg != 8)
89: colour_set_fg(gc, fg);
90: bg = options_get_number(&s->options, "status-right-bg");
91: if (bg != 8)
92: colour_set_bg(gc, bg);
93: attr = options_get_number(&s->options, "status-right-attr");
94: if (attr != 0)
95: gc->attr = attr;
96:
97: right = status_replace(
98: c, NULL, options_get_string(&s->options, "status-right"), t, 1);
99:
100: *size = options_get_number(&s->options, "status-right-length");
101: rightlen = screen_write_cstrlen(utf8flag, "%s", right);
102: if (rightlen < *size)
103: *size = rightlen;
104: return (right);
105: }
106:
1.1 nicm 107: /* Draw status for client on the last lines of given context. */
108: int
109: status_redraw(struct client *c)
110: {
1.48 nicm 111: struct screen_write_ctx ctx;
112: struct session *s = c->session;
113: struct winlink *wl;
114: struct screen old_status, window_list;
115: struct grid_cell stdgc, lgc, rgc, gc;
116: time_t t;
117: char *left, *right;
118: u_int offset, needed;
119: u_int wlstart, wlwidth, wlavailable, wloffset, wlsize;
120: size_t llen, rlen;
121: int larrow, rarrow, utf8flag;
1.1 nicm 122:
1.49 nicm 123: /* No status line? */
1.7 nicm 124: if (c->tty.sy == 0 || !options_get_number(&s->options, "status"))
125: return (1);
1.48 nicm 126: left = right = NULL;
1.7 nicm 127: larrow = rarrow = 0;
1.1 nicm 128:
1.48 nicm 129: /* Update status timer. */
1.1 nicm 130: if (gettimeofday(&c->status_timer, NULL) != 0)
1.34 nicm 131: fatal("gettimeofday failed");
1.48 nicm 132: t = c->status_timer.tv_sec;
133:
134: /* Set up default colour. */
1.1 nicm 135: memcpy(&stdgc, &grid_default_cell, sizeof gc);
1.33 nicm 136: colour_set_fg(&stdgc, options_get_number(&s->options, "status-fg"));
137: colour_set_bg(&stdgc, options_get_number(&s->options, "status-bg"));
1.1 nicm 138: stdgc.attr |= options_get_number(&s->options, "status-attr");
139:
1.48 nicm 140: /* Create the target screen. */
141: memcpy(&old_status, &c->status, sizeof old_status);
142: screen_init(&c->status, c->tty.sx, 1, 0);
143: screen_write_start(&ctx, NULL, &c->status);
144: for (offset = 0; offset < c->tty.sx; offset++)
145: screen_write_putc(&ctx, &stdgc, ' ');
146: screen_write_stop(&ctx);
147:
148: /* If the height is one line, blank status line. */
149: if (c->tty.sy <= 1)
150: goto out;
1.1 nicm 151:
1.48 nicm 152: /* Get UTF-8 flag. */
1.3 nicm 153: utf8flag = options_get_number(&s->options, "status-utf8");
154:
1.48 nicm 155: /* Work out left and right strings. */
156: memcpy(&lgc, &stdgc, sizeof lgc);
157: left = status_redraw_get_left(c, t, utf8flag, &lgc, &llen);
158: memcpy(&rgc, &stdgc, sizeof rgc);
159: right = status_redraw_get_right(c, t, utf8flag, &rgc, &rlen);
1.1 nicm 160:
161: /*
1.48 nicm 162: * Figure out how much space we have for the window list. If there
163: * isn't enough space, just show a blank status line.
1.1 nicm 164: */
1.55 nicm 165: needed = 0;
1.1 nicm 166: if (llen != 0)
1.48 nicm 167: needed += llen + 1;
1.1 nicm 168: if (rlen != 0)
1.48 nicm 169: needed += rlen + 1;
170: if (c->tty.sx == 0 || c->tty.sx <= needed)
171: goto out;
172: wlavailable = c->tty.sx - needed;
1.1 nicm 173:
1.48 nicm 174: /* Calculate the total size needed for the window list. */
175: wlstart = wloffset = wlwidth = 0;
1.1 nicm 176: RB_FOREACH(wl, winlinks, &s->windows) {
1.48 nicm 177: if (wl->status_text != NULL)
178: xfree(wl->status_text);
179: memcpy(&wl->status_cell, &stdgc, sizeof wl->status_cell);
180: wl->status_text = status_print(c, wl, t, &wl->status_cell);
1.55 nicm 181: wl->status_width =
1.48 nicm 182: screen_write_cstrlen(utf8flag, "%s", wl->status_text);
183:
1.1 nicm 184: if (wl == s->curw)
1.48 nicm 185: wloffset = wlwidth;
186: wlwidth += wl->status_width + 1;
187: }
188:
189: /* Create a new screen for the window list. */
190: screen_init(&window_list, wlwidth, 1, 0);
191:
192: /* And draw the window list into it. */
193: screen_write_start(&ctx, NULL, &window_list);
194: RB_FOREACH(wl, winlinks, &s->windows) {
1.55 nicm 195: screen_write_cnputs(&ctx,
1.48 nicm 196: -1, &wl->status_cell, utf8flag, "%s", wl->status_text);
197: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 198: }
1.48 nicm 199: screen_write_stop(&ctx);
1.1 nicm 200:
1.48 nicm 201: /* If there is enough space for the total width, skip to draw now. */
202: if (wlwidth <= wlavailable)
1.1 nicm 203: goto draw;
204:
205: /* Find size of current window text. */
1.48 nicm 206: wlsize = s->curw->status_width;
1.1 nicm 207:
208: /*
1.48 nicm 209: * If the current window is already on screen, good to draw from the
1.1 nicm 210: * start and just leave off the end.
211: */
1.48 nicm 212: if (wloffset + wlsize < wlavailable) {
213: if (wlavailable > 0) {
214: rarrow = 1;
215: wlavailable--;
216: }
217: wlwidth = wlavailable;
218: } else {
219: /*
220: * Work out how many characters we need to omit from the
221: * start. There are wlavailable characters to fill, and
222: * wloffset + wlsize must be the last. So, the start character
223: * is wloffset + wlsize - wlavailable.
224: */
225: if (wlavailable > 0) {
226: larrow = 1;
227: wlavailable--;
228: }
1.55 nicm 229:
1.48 nicm 230: wlstart = wloffset + wlsize - wlavailable;
231: if (wlavailable > 0 && wlwidth > wlstart + wlavailable + 1) {
1.1 nicm 232: rarrow = 1;
1.48 nicm 233: wlstart++;
234: wlavailable--;
1.1 nicm 235: }
1.48 nicm 236: wlwidth = wlavailable;
237: }
1.1 nicm 238:
1.48 nicm 239: /* Bail if anything is now too small too. */
240: if (wlwidth == 0 || wlavailable == 0) {
241: screen_free(&window_list);
242: goto out;
1.1 nicm 243: }
244:
245: /*
1.48 nicm 246: * Now the start position is known, work out the state of the left and
247: * right arrows.
1.1 nicm 248: */
249: offset = 0;
250: RB_FOREACH(wl, winlinks, &s->windows) {
1.48 nicm 251: if (larrow == 1 && offset < wlstart) {
1.1 nicm 252: if (session_alert_has(s, wl, WINDOW_ACTIVITY))
253: larrow = -1;
254: else if (session_alert_has(s, wl, WINDOW_BELL))
255: larrow = -1;
256: else if (session_alert_has(s, wl, WINDOW_CONTENT))
257: larrow = -1;
258: }
259:
1.48 nicm 260: offset += wl->status_width;
1.1 nicm 261:
1.48 nicm 262: if (rarrow == 1 && offset > wlstart + wlwidth) {
1.1 nicm 263: if (session_alert_has(s, wl, WINDOW_ACTIVITY))
264: rarrow = -1;
265: else if (session_alert_has(s, wl, WINDOW_BELL))
266: rarrow = -1;
267: else if (session_alert_has(s, wl, WINDOW_CONTENT))
268: rarrow = -1;
269: }
270: }
271:
1.48 nicm 272: draw:
1.55 nicm 273: /* Begin drawing. */
1.48 nicm 274: screen_write_start(&ctx, NULL, &c->status);
1.1 nicm 275:
1.48 nicm 276: /* Draw the left string and arrow. */
277: screen_write_cursormove(&ctx, 0, 0);
278: if (llen != 0) {
279: screen_write_cnputs(&ctx, llen, &lgc, utf8flag, "%s", left);
1.5 nicm 280: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 281: }
282: if (larrow != 0) {
283: memcpy(&gc, &stdgc, sizeof gc);
284: if (larrow == -1)
285: gc.attr ^= GRID_ATTR_REVERSE;
286: screen_write_putc(&ctx, &gc, '<');
287: }
1.48 nicm 288:
289: /* Draw the right string and arrow. */
1.1 nicm 290: if (rarrow != 0) {
1.48 nicm 291: screen_write_cursormove(&ctx, c->tty.sx - rlen - 2, 0);
1.1 nicm 292: memcpy(&gc, &stdgc, sizeof gc);
293: if (rarrow == -1)
294: gc.attr ^= GRID_ATTR_REVERSE;
295: screen_write_putc(&ctx, &gc, '>');
1.48 nicm 296: } else
297: screen_write_cursormove(&ctx, c->tty.sx - rlen - 1, 0);
298: if (rlen != 0) {
299: screen_write_putc(&ctx, &stdgc, ' ');
300: screen_write_cnputs(&ctx, rlen, &rgc, utf8flag, "%s", right);
1.1 nicm 301: }
302:
1.48 nicm 303: /* Figure out the offset for the window list. */
1.58 nicm 304: if (llen != 0)
305: wloffset = llen + 1;
306: else
307: wloffset = 0;
1.48 nicm 308: if (wlwidth < wlavailable) {
309: switch (options_get_number(&s->options, "status-justify")) {
310: case 1: /* centered */
1.58 nicm 311: wloffset += (wlavailable - wlwidth) / 2;
1.48 nicm 312: break;
313: case 2: /* right */
1.58 nicm 314: wloffset += (wlavailable - wlwidth);
1.48 nicm 315: break;
316: }
317: }
318: if (larrow != 0)
319: wloffset++;
320:
321: /* Copy the window list. */
322: screen_write_cursormove(&ctx, wloffset, 0);
323: screen_write_copy(&ctx, &window_list, wlstart, 0, wlwidth, 1);
1.55 nicm 324: screen_free(&window_list);
1.1 nicm 325:
1.48 nicm 326: screen_write_stop(&ctx);
1.1 nicm 327:
328: out:
329: if (left != NULL)
330: xfree(left);
331: if (right != NULL)
332: xfree(right);
333:
334: if (grid_compare(c->status.grid, old_status.grid) == 0) {
335: screen_free(&old_status);
336: return (0);
337: }
338: screen_free(&old_status);
339: return (1);
340: }
341:
1.46 nicm 342: /* Replace a single special sequence (prefixed by #). */
343: void
1.47 nicm 344: status_replace1(struct client *c,struct winlink *wl,
1.46 nicm 345: char **iptr, char **optr, char *out, size_t outsize, int jobsflag)
1.1 nicm 346: {
1.38 nicm 347: struct session *s = c->session;
1.46 nicm 348: char ch, tmp[256], *ptr, *endptr, *freeptr;
349: size_t ptrlen;
350: long limit;
351:
1.47 nicm 352: if (wl == NULL)
353: wl = s->curw;
354:
1.46 nicm 355: errno = 0;
356: limit = strtol(*iptr, &endptr, 10);
357: if ((limit == 0 && errno != EINVAL) ||
358: (limit == LONG_MIN && errno != ERANGE) ||
1.55 nicm 359: (limit == LONG_MAX && errno != ERANGE) ||
1.46 nicm 360: limit != 0)
361: *iptr = endptr;
362: if (limit <= 0)
363: limit = LONG_MAX;
364:
365: freeptr = NULL;
366:
367: switch (*(*iptr)++) {
368: case '(':
369: if (!jobsflag) {
370: ch = ')';
371: goto skip_to;
372: }
373: if ((ptr = status_job(c, iptr)) == NULL)
374: return;
375: freeptr = ptr;
376: goto do_replace;
377: case 'H':
378: if (gethostname(tmp, sizeof tmp) != 0)
379: fatal("gethostname failed");
380: ptr = tmp;
381: goto do_replace;
382: case 'I':
383: xsnprintf(tmp, sizeof tmp, "%d", wl->idx);
384: ptr = tmp;
385: goto do_replace;
386: case 'P':
387: xsnprintf(tmp, sizeof tmp, "%u",
388: window_pane_index(wl->window, wl->window->active));
389: ptr = tmp;
390: goto do_replace;
391: case 'S':
392: ptr = s->name;
393: goto do_replace;
394: case 'T':
395: ptr = wl->window->active->base.title;
396: goto do_replace;
397: case 'W':
398: ptr = wl->window->name;
399: goto do_replace;
1.47 nicm 400: case 'F':
401: tmp[0] = ' ';
402: if (session_alert_has(s, wl, WINDOW_CONTENT))
403: tmp[0] = '+';
404: else if (session_alert_has(s, wl, WINDOW_BELL))
405: tmp[0] = '!';
406: else if (session_alert_has(s, wl, WINDOW_ACTIVITY))
407: tmp[0] = '#';
408: else if (wl == s->curw)
409: tmp[0] = '*';
410: else if (wl == TAILQ_FIRST(&s->lastw))
411: tmp[0] = '-';
412: tmp[1] = '\0';
413: ptr = tmp;
414: goto do_replace;
1.46 nicm 415: case '[':
1.55 nicm 416: /*
1.46 nicm 417: * Embedded style, handled at display time. Leave present and
418: * skip input until ].
419: */
420: ch = ']';
421: goto skip_to;
422: case '#':
1.49 nicm 423: *(*optr)++ = '#';
1.46 nicm 424: break;
425: }
426:
427: return;
1.55 nicm 428:
1.46 nicm 429: do_replace:
430: ptrlen = strlen(ptr);
431: if ((size_t) limit < ptrlen)
432: ptrlen = limit;
433:
434: if (*optr + ptrlen >= out + outsize - 1)
435: return;
436: while (ptrlen > 0 && *ptr != '\0') {
437: *(*optr)++ = *ptr++;
438: ptrlen--;
439: }
440:
441: if (freeptr != NULL)
442: xfree(freeptr);
443: return;
444:
445: skip_to:
446: *(*optr)++ = '#';
447:
448: (*iptr)--; /* include ch */
449: while (**iptr != ch && **iptr != '\0') {
450: if (*optr >= out + outsize - 1)
451: break;
452: *(*optr)++ = *(*iptr)++;
453: }
454: }
455:
456: /* Replace special sequences in fmt. */
457: char *
1.47 nicm 458: status_replace(struct client *c,
459: struct winlink *wl, const char *fmt, time_t t, int jobsflag)
1.46 nicm 460: {
1.1 nicm 461: static char out[BUFSIZ];
1.46 nicm 462: char in[BUFSIZ], ch, *iptr, *optr;
1.47 nicm 463:
1.1 nicm 464: strftime(in, sizeof in, fmt, localtime(&t));
465: in[(sizeof in) - 1] = '\0';
466:
467: iptr = in;
468: optr = out;
469:
470: while (*iptr != '\0') {
471: if (optr >= out + (sizeof out) - 1)
472: break;
1.46 nicm 473: ch = *iptr++;
474:
475: if (ch != '#') {
1.1 nicm 476: *optr++ = ch;
1.46 nicm 477: continue;
1.1 nicm 478: }
1.47 nicm 479: status_replace1(c, wl, &iptr, &optr, out, sizeof out, jobsflag);
1.1 nicm 480: }
481: *optr = '\0';
482:
483: return (xstrdup(out));
484: }
485:
1.46 nicm 486: /* Figure out job name and get its result, starting it off if necessary. */
1.1 nicm 487: char *
1.38 nicm 488: status_job(struct client *c, char **iptr)
1.1 nicm 489: {
1.38 nicm 490: struct job *job;
1.40 nicm 491: char *cmd;
1.38 nicm 492: int lastesc;
493: size_t len;
1.1 nicm 494:
495: if (**iptr == '\0')
496: return (NULL);
497: if (**iptr == ')') { /* no command given */
498: (*iptr)++;
499: return (NULL);
500: }
501:
502: cmd = xmalloc(strlen(*iptr) + 1);
503: len = 0;
504:
505: lastesc = 0;
506: for (; **iptr != '\0'; (*iptr)++) {
507: if (!lastesc && **iptr == ')')
508: break; /* unescaped ) is the end */
509: if (!lastesc && **iptr == '\\') {
510: lastesc = 1;
511: continue; /* skip \ if not escaped */
512: }
513: lastesc = 0;
514: cmd[len++] = **iptr;
515: }
1.38 nicm 516: if (**iptr == '\0') /* no terminating ) */ {
517: xfree(cmd);
518: return (NULL);
519: }
1.1 nicm 520: (*iptr)++; /* skip final ) */
521: cmd[len] = '\0';
522:
1.38 nicm 523: job = job_get(&c->status_jobs, cmd);
524: if (job == NULL) {
1.39 nicm 525: job = job_add(&c->status_jobs,
526: JOB_PERSIST, c, cmd, status_job_callback, xfree, NULL);
1.38 nicm 527: job_run(job);
528: }
529: if (job->data == NULL)
530: return (xstrdup(""));
531: return (xstrdup(job->data));
532: }
1.1 nicm 533:
1.46 nicm 534: /* Job has finished: save its result. */
1.38 nicm 535: void
536: status_job_callback(struct job *job)
537: {
1.41 nicm 538: char *line, *buf;
1.38 nicm 539: size_t len;
540:
1.41 nicm 541: buf = NULL;
542: if ((line = evbuffer_readline(job->event->input)) == NULL) {
543: len = EVBUFFER_LENGTH(job->event->input);
544: buf = xmalloc(len + 1);
545: if (len != 0)
546: memcpy(buf, EVBUFFER_DATA(job->event->input), len);
547: buf[len] = '\0';
548: }
1.38 nicm 549:
550: if (job->data != NULL)
551: xfree(job->data);
552: else
553: server_redraw_client(job->client);
1.1 nicm 554:
1.57 nicm 555: if (line == NULL)
556: job->data = buf;
557: else
558: job->data = xstrdup(line);
1.1 nicm 559: }
560:
1.46 nicm 561: /* Return winlink status line entry and adjust gc as necessary. */
1.1 nicm 562: char *
1.47 nicm 563: status_print(
564: struct client *c, struct winlink *wl, time_t t, struct grid_cell *gc)
1.1 nicm 565: {
1.33 nicm 566: struct options *oo = &wl->window->options;
1.47 nicm 567: struct session *s = c->session;
568: const char *fmt;
569: char *text;
1.33 nicm 570: u_char fg, bg, attr;
1.1 nicm 571:
1.33 nicm 572: fg = options_get_number(oo, "window-status-fg");
1.1 nicm 573: if (fg != 8)
1.33 nicm 574: colour_set_fg(gc, fg);
575: bg = options_get_number(oo, "window-status-bg");
1.1 nicm 576: if (bg != 8)
1.33 nicm 577: colour_set_bg(gc, bg);
578: attr = options_get_number(oo, "window-status-attr");
1.1 nicm 579: if (attr != 0)
580: gc->attr = attr;
1.47 nicm 581: fmt = options_get_string(oo, "window-status-format");
1.14 nicm 582: if (wl == s->curw) {
1.33 nicm 583: fg = options_get_number(oo, "window-status-current-fg");
1.14 nicm 584: if (fg != 8)
1.33 nicm 585: colour_set_fg(gc, fg);
586: bg = options_get_number(oo, "window-status-current-bg");
1.14 nicm 587: if (bg != 8)
1.33 nicm 588: colour_set_bg(gc, bg);
589: attr = options_get_number(oo, "window-status-current-attr");
1.14 nicm 590: if (attr != 0)
591: gc->attr = attr;
1.47 nicm 592: fmt = options_get_string(oo, "window-status-current-format");
1.14 nicm 593: }
1.1 nicm 594:
1.47 nicm 595: if (session_alert_has(s, wl, WINDOW_ACTIVITY) ||
596: session_alert_has(s, wl, WINDOW_BELL) ||
597: session_alert_has(s, wl, WINDOW_CONTENT))
1.1 nicm 598: gc->attr ^= GRID_ATTR_REVERSE;
599:
1.47 nicm 600: text = status_replace(c, wl, fmt, t, 1);
1.1 nicm 601: return (text);
602: }
603:
1.46 nicm 604: /* Set a status line message. */
1.10 nicm 605: void printflike2
606: status_message_set(struct client *c, const char *fmt, ...)
1.1 nicm 607: {
1.44 nicm 608: struct timeval tv;
609: struct session *s = c->session;
610: struct message_entry *msg;
611: va_list ap;
612: int delay;
613: u_int i, limit;
1.1 nicm 614:
1.12 nicm 615: status_prompt_clear(c);
616: status_message_clear(c);
617:
1.28 nicm 618: va_start(ap, fmt);
619: xvasprintf(&c->message_string, fmt, ap);
620: va_end(ap);
621:
1.44 nicm 622: ARRAY_EXPAND(&c->message_log, 1);
623: msg = &ARRAY_LAST(&c->message_log);
624: msg->msg_time = time(NULL);
625: msg->msg = xstrdup(c->message_string);
626:
627: if (s == NULL)
628: limit = 0;
629: else
630: limit = options_get_number(&s->options, "message-limit");
1.50 nicm 631: if (ARRAY_LENGTH(&c->message_log) > limit) {
632: limit = ARRAY_LENGTH(&c->message_log) - limit;
633: for (i = 0; i < limit; i++) {
634: msg = &ARRAY_FIRST(&c->message_log);
635: xfree(msg->msg);
636: ARRAY_REMOVE(&c->message_log, 0);
637: }
1.44 nicm 638: }
639:
1.1 nicm 640: delay = options_get_number(&c->session->options, "display-time");
641: tv.tv_sec = delay / 1000;
642: tv.tv_usec = (delay % 1000) * 1000L;
1.44 nicm 643:
1.42 nicm 644: evtimer_del(&c->message_timer);
645: evtimer_set(&c->message_timer, status_message_callback, c);
646: evtimer_add(&c->message_timer, &tv);
1.1 nicm 647:
648: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
649: c->flags |= CLIENT_STATUS;
650: }
651:
1.46 nicm 652: /* Clear status line message. */
1.1 nicm 653: void
654: status_message_clear(struct client *c)
655: {
656: if (c->message_string == NULL)
657: return;
658:
659: xfree(c->message_string);
660: c->message_string = NULL;
661:
662: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 663: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 664:
665: screen_reinit(&c->status);
1.42 nicm 666: }
667:
1.46 nicm 668: /* Clear status line message after timer expires. */
1.52 nicm 669: /* ARGSUSED */
1.42 nicm 670: void
671: status_message_callback(unused int fd, unused short event, void *data)
672: {
673: struct client *c = data;
674:
675: status_message_clear(c);
1.1 nicm 676: }
677:
678: /* Draw client message on status line of present else on last line. */
679: int
680: status_message_redraw(struct client *c)
681: {
682: struct screen_write_ctx ctx;
683: struct session *s = c->session;
684: struct screen old_status;
685: size_t len;
686: struct grid_cell gc;
1.51 nicm 687: int utf8flag;
1.1 nicm 688:
689: if (c->tty.sx == 0 || c->tty.sy == 0)
690: return (0);
691: memcpy(&old_status, &c->status, sizeof old_status);
692: screen_init(&c->status, c->tty.sx, 1, 0);
693:
1.51 nicm 694: utf8flag = options_get_number(&s->options, "status-utf8");
695:
696: len = screen_write_strlen(utf8flag, "%s", c->message_string);
1.1 nicm 697: if (len > c->tty.sx)
698: len = c->tty.sx;
699:
700: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 701: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
702: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 703: gc.attr |= options_get_number(&s->options, "message-attr");
704:
705: screen_write_start(&ctx, NULL, &c->status);
706:
707: screen_write_cursormove(&ctx, 0, 0);
1.51 nicm 708: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->message_string);
1.1 nicm 709: for (; len < c->tty.sx; len++)
710: screen_write_putc(&ctx, &gc, ' ');
711:
712: screen_write_stop(&ctx);
713:
714: if (grid_compare(c->status.grid, old_status.grid) == 0) {
715: screen_free(&old_status);
716: return (0);
717: }
718: screen_free(&old_status);
719: return (1);
720: }
721:
1.46 nicm 722: /* Enable status line prompt. */
1.1 nicm 723: void
1.12 nicm 724: status_prompt_set(struct client *c, const char *msg,
725: int (*callbackfn)(void *, const char *), void (*freefn)(void *),
726: void *data, int flags)
1.1 nicm 727: {
1.20 nicm 728: int keys;
729:
1.12 nicm 730: status_message_clear(c);
731: status_prompt_clear(c);
732:
1.1 nicm 733: c->prompt_string = xstrdup(msg);
734:
735: c->prompt_buffer = xstrdup("");
736: c->prompt_index = 0;
737:
1.12 nicm 738: c->prompt_callbackfn = callbackfn;
739: c->prompt_freefn = freefn;
1.1 nicm 740: c->prompt_data = data;
741:
742: c->prompt_hindex = 0;
743:
744: c->prompt_flags = flags;
745:
1.20 nicm 746: keys = options_get_number(&c->session->options, "status-keys");
747: if (keys == MODEKEY_EMACS)
1.21 nicm 748: mode_key_init(&c->prompt_mdata, &mode_key_tree_emacs_edit);
1.20 nicm 749: else
1.21 nicm 750: mode_key_init(&c->prompt_mdata, &mode_key_tree_vi_edit);
1.1 nicm 751:
752: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
753: c->flags |= CLIENT_STATUS;
754: }
755:
1.46 nicm 756: /* Remove status line prompt. */
1.1 nicm 757: void
758: status_prompt_clear(struct client *c)
759: {
1.55 nicm 760: if (c->prompt_string == NULL)
1.1 nicm 761: return;
762:
1.12 nicm 763: if (c->prompt_freefn != NULL && c->prompt_data != NULL)
764: c->prompt_freefn(c->prompt_data);
1.1 nicm 765:
766: xfree(c->prompt_string);
767: c->prompt_string = NULL;
768:
769: xfree(c->prompt_buffer);
770: c->prompt_buffer = NULL;
771:
772: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 773: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 774:
775: screen_reinit(&c->status);
1.27 nicm 776: }
777:
1.46 nicm 778: /* Update status line prompt with a new prompt string. */
1.27 nicm 779: void
780: status_prompt_update(struct client *c, const char *msg)
781: {
782: xfree(c->prompt_string);
783: c->prompt_string = xstrdup(msg);
784:
785: *c->prompt_buffer = '\0';
786: c->prompt_index = 0;
787:
788: c->prompt_hindex = 0;
789:
790: c->flags |= CLIENT_STATUS;
1.1 nicm 791: }
792:
793: /* Draw client prompt on status line of present else on last line. */
794: int
795: status_prompt_redraw(struct client *c)
796: {
1.51 nicm 797: struct screen_write_ctx ctx;
1.1 nicm 798: struct session *s = c->session;
799: struct screen old_status;
1.29 nicm 800: size_t i, size, left, len, off;
1.51 nicm 801: struct grid_cell gc, *gcp;
802: int utf8flag;
1.1 nicm 803:
804: if (c->tty.sx == 0 || c->tty.sy == 0)
805: return (0);
806: memcpy(&old_status, &c->status, sizeof old_status);
807: screen_init(&c->status, c->tty.sx, 1, 0);
808:
1.51 nicm 809: utf8flag = options_get_number(&s->options, "status-utf8");
810:
811: len = screen_write_strlen(utf8flag, "%s", c->prompt_string);
1.1 nicm 812: if (len > c->tty.sx)
813: len = c->tty.sx;
1.51 nicm 814: off = 0;
1.1 nicm 815:
816: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 817: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
818: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 819: gc.attr |= options_get_number(&s->options, "message-attr");
820:
821: screen_write_start(&ctx, NULL, &c->status);
822:
823: screen_write_cursormove(&ctx, 0, 0);
1.51 nicm 824: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->prompt_string);
1.1 nicm 825:
826: left = c->tty.sx - len;
827: if (left != 0) {
1.51 nicm 828: size = screen_write_strlen(utf8flag, "%s", c->prompt_buffer);
829: if (c->prompt_index >= left) {
1.17 nicm 830: off = c->prompt_index - left + 1;
1.51 nicm 831: if (c->prompt_index == size)
1.1 nicm 832: left--;
833: size = left;
834: }
1.51 nicm 835: screen_write_nputs(
836: &ctx, left, &gc, utf8flag, "%s", c->prompt_buffer + off);
1.1 nicm 837:
1.55 nicm 838: for (i = len + size; i < c->tty.sx; i++)
839: screen_write_putc(&ctx, &gc, ' ');
1.1 nicm 840: }
841:
842: screen_write_stop(&ctx);
1.51 nicm 843:
844: /* Apply fake cursor. */
845: off = len + c->prompt_index - off;
846: gcp = grid_view_get_cell(c->status.grid, off, 0);
847: gcp->attr ^= GRID_ATTR_REVERSE;
1.1 nicm 848:
849: if (grid_compare(c->status.grid, old_status.grid) == 0) {
850: screen_free(&old_status);
851: return (0);
852: }
853: screen_free(&old_status);
854: return (1);
855: }
856:
857: /* Handle keys in prompt. */
858: void
859: status_prompt_key(struct client *c, int key)
860: {
861: struct paste_buffer *pb;
1.30 nicm 862: char *s, *first, *last, word[64], swapc;
1.53 nicm 863: u_char ch;
1.1 nicm 864: size_t size, n, off, idx;
865:
866: size = strlen(c->prompt_buffer);
867: switch (mode_key_lookup(&c->prompt_mdata, key)) {
1.20 nicm 868: case MODEKEYEDIT_CURSORLEFT:
1.1 nicm 869: if (c->prompt_index > 0) {
870: c->prompt_index--;
871: c->flags |= CLIENT_STATUS;
872: }
873: break;
1.20 nicm 874: case MODEKEYEDIT_SWITCHMODEAPPEND:
875: case MODEKEYEDIT_CURSORRIGHT:
1.1 nicm 876: if (c->prompt_index < size) {
877: c->prompt_index++;
878: c->flags |= CLIENT_STATUS;
879: }
880: break;
1.20 nicm 881: case MODEKEYEDIT_STARTOFLINE:
1.1 nicm 882: if (c->prompt_index != 0) {
883: c->prompt_index = 0;
884: c->flags |= CLIENT_STATUS;
885: }
886: break;
1.20 nicm 887: case MODEKEYEDIT_ENDOFLINE:
1.1 nicm 888: if (c->prompt_index != size) {
889: c->prompt_index = size;
890: c->flags |= CLIENT_STATUS;
891: }
892: break;
1.20 nicm 893: case MODEKEYEDIT_COMPLETE:
1.1 nicm 894: if (*c->prompt_buffer == '\0')
895: break;
896:
897: idx = c->prompt_index;
898: if (idx != 0)
899: idx--;
900:
901: /* Find the word we are in. */
902: first = c->prompt_buffer + idx;
903: while (first > c->prompt_buffer && *first != ' ')
904: first--;
905: while (*first == ' ')
906: first++;
907: last = c->prompt_buffer + idx;
908: while (*last != '\0' && *last != ' ')
909: last++;
910: while (*last == ' ')
911: last--;
912: if (*last != '\0')
913: last++;
914: if (last <= first ||
915: ((size_t) (last - first)) > (sizeof word) - 1)
916: break;
917: memcpy(word, first, last - first);
918: word[last - first] = '\0';
919:
920: /* And try to complete it. */
921: if ((s = status_prompt_complete(word)) == NULL)
922: break;
923:
924: /* Trim out word. */
925: n = size - (last - c->prompt_buffer) + 1; /* with \0 */
926: memmove(first, last, n);
927: size -= last - first;
928:
929: /* Insert the new word. */
1.55 nicm 930: size += strlen(s);
1.1 nicm 931: off = first - c->prompt_buffer;
1.55 nicm 932: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 1);
1.1 nicm 933: first = c->prompt_buffer + off;
1.55 nicm 934: memmove(first + strlen(s), first, n);
935: memcpy(first, s, strlen(s));
1.1 nicm 936:
937: c->prompt_index = (first - c->prompt_buffer) + strlen(s);
1.22 nicm 938: xfree(s);
1.1 nicm 939:
940: c->flags |= CLIENT_STATUS;
941: break;
1.20 nicm 942: case MODEKEYEDIT_BACKSPACE:
1.1 nicm 943: if (c->prompt_index != 0) {
944: if (c->prompt_index == size)
945: c->prompt_buffer[--c->prompt_index] = '\0';
946: else {
947: memmove(c->prompt_buffer + c->prompt_index - 1,
948: c->prompt_buffer + c->prompt_index,
949: size + 1 - c->prompt_index);
950: c->prompt_index--;
951: }
952: c->flags |= CLIENT_STATUS;
953: }
954: break;
1.55 nicm 955: case MODEKEYEDIT_DELETE:
1.1 nicm 956: if (c->prompt_index != size) {
957: memmove(c->prompt_buffer + c->prompt_index,
958: c->prompt_buffer + c->prompt_index + 1,
959: size + 1 - c->prompt_index);
1.18 nicm 960: c->flags |= CLIENT_STATUS;
961: }
1.26 nicm 962: break;
963: case MODEKEYEDIT_DELETELINE:
964: *c->prompt_buffer = '\0';
965: c->prompt_index = 0;
966: c->flags |= CLIENT_STATUS;
1.18 nicm 967: break;
1.20 nicm 968: case MODEKEYEDIT_DELETETOENDOFLINE:
1.18 nicm 969: if (c->prompt_index < size) {
970: c->prompt_buffer[c->prompt_index] = '\0';
1.1 nicm 971: c->flags |= CLIENT_STATUS;
972: }
973: break;
1.20 nicm 974: case MODEKEYEDIT_HISTORYUP:
1.1 nicm 975: if (ARRAY_LENGTH(&c->prompt_hdata) == 0)
976: break;
977: xfree(c->prompt_buffer);
978:
979: c->prompt_buffer = xstrdup(ARRAY_ITEM(&c->prompt_hdata,
980: ARRAY_LENGTH(&c->prompt_hdata) - 1 - c->prompt_hindex));
981: if (c->prompt_hindex != ARRAY_LENGTH(&c->prompt_hdata) - 1)
982: c->prompt_hindex++;
983:
984: c->prompt_index = strlen(c->prompt_buffer);
985: c->flags |= CLIENT_STATUS;
986: break;
1.20 nicm 987: case MODEKEYEDIT_HISTORYDOWN:
1.1 nicm 988: xfree(c->prompt_buffer);
989:
990: if (c->prompt_hindex != 0) {
991: c->prompt_hindex--;
992: c->prompt_buffer = xstrdup(ARRAY_ITEM(
993: &c->prompt_hdata, ARRAY_LENGTH(
994: &c->prompt_hdata) - 1 - c->prompt_hindex));
995: } else
996: c->prompt_buffer = xstrdup("");
997:
998: c->prompt_index = strlen(c->prompt_buffer);
999: c->flags |= CLIENT_STATUS;
1000: break;
1.20 nicm 1001: case MODEKEYEDIT_PASTE:
1.1 nicm 1002: if ((pb = paste_get_top(&c->session->buffers)) == NULL)
1003: break;
1.32 nicm 1004: for (n = 0; n < pb->size; n++) {
1.53 nicm 1005: ch = (u_char) pb->data[n];
1006: if (ch < 32 || ch == 127)
1.32 nicm 1007: break;
1008: }
1.1 nicm 1009:
1010: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + n + 1);
1011: if (c->prompt_index == size) {
1012: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
1013: c->prompt_index += n;
1014: c->prompt_buffer[c->prompt_index] = '\0';
1015: } else {
1016: memmove(c->prompt_buffer + c->prompt_index + n,
1017: c->prompt_buffer + c->prompt_index,
1018: size + 1 - c->prompt_index);
1019: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
1020: c->prompt_index += n;
1021: }
1022:
1023: c->flags |= CLIENT_STATUS;
1.30 nicm 1024: break;
1025: case MODEKEYEDIT_TRANSPOSECHARS:
1026: idx = c->prompt_index;
1027: if (idx < size)
1028: idx++;
1029: if (idx >= 2) {
1030: swapc = c->prompt_buffer[idx - 2];
1031: c->prompt_buffer[idx - 2] = c->prompt_buffer[idx - 1];
1032: c->prompt_buffer[idx - 1] = swapc;
1033: c->prompt_index = idx;
1034: c->flags |= CLIENT_STATUS;
1035: }
1.1 nicm 1036: break;
1.55 nicm 1037: case MODEKEYEDIT_ENTER:
1.25 nicm 1038: if (*c->prompt_buffer != '\0')
1.1 nicm 1039: status_prompt_add_history(c);
1.25 nicm 1040: if (c->prompt_callbackfn(c->prompt_data, c->prompt_buffer) == 0)
1041: status_prompt_clear(c);
1042: break;
1.20 nicm 1043: case MODEKEYEDIT_CANCEL:
1.12 nicm 1044: if (c->prompt_callbackfn(c->prompt_data, NULL) == 0)
1.1 nicm 1045: status_prompt_clear(c);
1046: break;
1.20 nicm 1047: case MODEKEY_OTHER:
1.43 nicm 1048: if (key < 32 || key == 127)
1.1 nicm 1049: break;
1050: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 2);
1051:
1052: if (c->prompt_index == size) {
1053: c->prompt_buffer[c->prompt_index++] = key;
1054: c->prompt_buffer[c->prompt_index] = '\0';
1055: } else {
1056: memmove(c->prompt_buffer + c->prompt_index + 1,
1057: c->prompt_buffer + c->prompt_index,
1058: size + 1 - c->prompt_index);
1059: c->prompt_buffer[c->prompt_index++] = key;
1060: }
1061:
1062: if (c->prompt_flags & PROMPT_SINGLE) {
1.12 nicm 1063: if (c->prompt_callbackfn(
1.1 nicm 1064: c->prompt_data, c->prompt_buffer) == 0)
1065: status_prompt_clear(c);
1066: }
1067:
1068: c->flags |= CLIENT_STATUS;
1069: break;
1070: default:
1071: break;
1072: }
1073: }
1074:
1075: /* Add line to the history. */
1076: void
1077: status_prompt_add_history(struct client *c)
1078: {
1079: if (ARRAY_LENGTH(&c->prompt_hdata) > 0 &&
1080: strcmp(ARRAY_LAST(&c->prompt_hdata), c->prompt_buffer) == 0)
1081: return;
1082:
1083: if (ARRAY_LENGTH(&c->prompt_hdata) == PROMPT_HISTORY) {
1084: xfree(ARRAY_FIRST(&c->prompt_hdata));
1085: ARRAY_REMOVE(&c->prompt_hdata, 0);
1086: }
1087:
1088: ARRAY_ADD(&c->prompt_hdata, xstrdup(c->prompt_buffer));
1089: }
1090:
1091: /* Complete word. */
1092: char *
1093: status_prompt_complete(const char *s)
1094: {
1095: const struct cmd_entry **cmdent;
1.54 nicm 1096: const struct set_option_entry *entry;
1.1 nicm 1097: ARRAY_DECL(, const char *) list;
1098: char *prefix, *s2;
1.9 nicm 1099: u_int i;
1.1 nicm 1100: size_t j;
1101:
1102: if (*s == '\0')
1103: return (NULL);
1104:
1105: /* First, build a list of all the possible matches. */
1106: ARRAY_INIT(&list);
1107: for (cmdent = cmd_table; *cmdent != NULL; cmdent++) {
1108: if (strncmp((*cmdent)->name, s, strlen(s)) == 0)
1109: ARRAY_ADD(&list, (*cmdent)->name);
1.56 nicm 1110: }
1111: for (entry = set_option_table; entry->name != NULL; entry++) {
1112: if (strncmp(entry->name, s, strlen(s)) == 0)
1113: ARRAY_ADD(&list, entry->name);
1.1 nicm 1114: }
1.54 nicm 1115: for (entry = set_session_option_table; entry->name != NULL; entry++) {
1116: if (strncmp(entry->name, s, strlen(s)) == 0)
1117: ARRAY_ADD(&list, entry->name);
1118: }
1119: for (entry = set_window_option_table; entry->name != NULL; entry++) {
1120: if (strncmp(entry->name, s, strlen(s)) == 0)
1121: ARRAY_ADD(&list, entry->name);
1.1 nicm 1122: }
1123:
1124: /* If none, bail now. */
1125: if (ARRAY_LENGTH(&list) == 0) {
1126: ARRAY_FREE(&list);
1127: return (NULL);
1128: }
1129:
1130: /* If an exact match, return it, with a trailing space. */
1131: if (ARRAY_LENGTH(&list) == 1) {
1132: xasprintf(&s2, "%s ", ARRAY_FIRST(&list));
1133: ARRAY_FREE(&list);
1134: return (s2);
1135: }
1136:
1137: /* Now loop through the list and find the longest common prefix. */
1138: prefix = xstrdup(ARRAY_FIRST(&list));
1139: for (i = 1; i < ARRAY_LENGTH(&list); i++) {
1140: s = ARRAY_ITEM(&list, i);
1141:
1142: j = strlen(s);
1143: if (j > strlen(prefix))
1144: j = strlen(prefix);
1145: for (; j > 0; j--) {
1146: if (prefix[j - 1] != s[j - 1])
1147: prefix[j - 1] = '\0';
1148: }
1149: }
1150:
1151: ARRAY_FREE(&list);
1152: return (prefix);
1153: }
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