Annotation of src/usr.bin/tmux/status.c, Revision 1.52
1.52 ! nicm 1: /* $OpenBSD: status.c,v 1.51 2009/11/20 07:01:12 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: size_t status_width(struct client *, struct winlink *, time_t);
39: char *status_print(
40: struct client *, struct winlink *, time_t, struct grid_cell *);
41: void status_replace1(struct client *,
42: struct winlink *, char **, char **, char *, size_t, int);
1.42 nicm 43: void status_message_callback(int, short, void *);
1.1 nicm 44:
45: void status_prompt_add_history(struct client *);
46: char *status_prompt_complete(const char *);
47:
1.48 nicm 48: /* Retrieve options for left string. */
49: char *
50: status_redraw_get_left(struct client *c,
51: time_t t, int utf8flag, struct grid_cell *gc, size_t *size)
52: {
53: struct session *s = c->session;
54: char *left;
55: u_char fg, bg, attr;
56: size_t leftlen;
57:
58: fg = options_get_number(&s->options, "status-left-fg");
59: if (fg != 8)
60: colour_set_fg(gc, fg);
61: bg = options_get_number(&s->options, "status-left-bg");
62: if (bg != 8)
63: colour_set_bg(gc, bg);
64: attr = options_get_number(&s->options, "status-left-attr");
65: if (attr != 0)
66: gc->attr = attr;
67:
68: left = status_replace(
69: c, NULL, options_get_string(&s->options, "status-left"), t, 1);
70:
71: *size = options_get_number(&s->options, "status-left-length");
72: leftlen = screen_write_cstrlen(utf8flag, "%s", left);
73: if (leftlen < *size)
74: *size = leftlen;
75: return (left);
76: }
77:
78: /* Retrieve options for right string. */
79: char *
80: status_redraw_get_right(struct client *c,
81: time_t t, int utf8flag, struct grid_cell *gc, size_t *size)
82: {
83: struct session *s = c->session;
84: char *right;
85: u_char fg, bg, attr;
86: size_t rightlen;
87:
88: fg = options_get_number(&s->options, "status-right-fg");
89: if (fg != 8)
90: colour_set_fg(gc, fg);
91: bg = options_get_number(&s->options, "status-right-bg");
92: if (bg != 8)
93: colour_set_bg(gc, bg);
94: attr = options_get_number(&s->options, "status-right-attr");
95: if (attr != 0)
96: gc->attr = attr;
97:
98: right = status_replace(
99: c, NULL, options_get_string(&s->options, "status-right"), t, 1);
100:
101: *size = options_get_number(&s->options, "status-right-length");
102: rightlen = screen_write_cstrlen(utf8flag, "%s", right);
103: if (rightlen < *size)
104: *size = rightlen;
105: return (right);
106: }
107:
1.1 nicm 108: /* Draw status for client on the last lines of given context. */
109: int
110: status_redraw(struct client *c)
111: {
1.48 nicm 112: struct screen_write_ctx ctx;
113: struct session *s = c->session;
114: struct winlink *wl;
115: struct screen old_status, window_list;
116: struct grid_cell stdgc, lgc, rgc, gc;
117: time_t t;
118: char *left, *right;
119: u_int offset, needed;
120: u_int wlstart, wlwidth, wlavailable, wloffset, wlsize;
121: size_t llen, rlen;
122: int larrow, rarrow, utf8flag;
1.1 nicm 123:
1.49 nicm 124: /* No status line? */
1.7 nicm 125: if (c->tty.sy == 0 || !options_get_number(&s->options, "status"))
126: return (1);
1.48 nicm 127: left = right = NULL;
1.7 nicm 128: larrow = rarrow = 0;
1.1 nicm 129:
1.48 nicm 130: /* Update status timer. */
1.1 nicm 131: if (gettimeofday(&c->status_timer, NULL) != 0)
1.34 nicm 132: fatal("gettimeofday failed");
1.48 nicm 133: t = c->status_timer.tv_sec;
134:
135: /* Set up default colour. */
1.1 nicm 136: memcpy(&stdgc, &grid_default_cell, sizeof gc);
1.33 nicm 137: colour_set_fg(&stdgc, options_get_number(&s->options, "status-fg"));
138: colour_set_bg(&stdgc, options_get_number(&s->options, "status-bg"));
1.1 nicm 139: stdgc.attr |= options_get_number(&s->options, "status-attr");
140:
1.48 nicm 141: /* Create the target screen. */
142: memcpy(&old_status, &c->status, sizeof old_status);
143: screen_init(&c->status, c->tty.sx, 1, 0);
144: screen_write_start(&ctx, NULL, &c->status);
145: for (offset = 0; offset < c->tty.sx; offset++)
146: screen_write_putc(&ctx, &stdgc, ' ');
147: screen_write_stop(&ctx);
148:
149: /* If the height is one line, blank status line. */
150: if (c->tty.sy <= 1)
151: goto out;
1.1 nicm 152:
1.48 nicm 153: /* Get UTF-8 flag. */
1.3 nicm 154: utf8flag = options_get_number(&s->options, "status-utf8");
155:
1.48 nicm 156: /* Work out left and right strings. */
157: memcpy(&lgc, &stdgc, sizeof lgc);
158: left = status_redraw_get_left(c, t, utf8flag, &lgc, &llen);
159: memcpy(&rgc, &stdgc, sizeof rgc);
160: right = status_redraw_get_right(c, t, utf8flag, &rgc, &rlen);
1.1 nicm 161:
162: /*
1.48 nicm 163: * Figure out how much space we have for the window list. If there
164: * isn't enough space, just show a blank status line.
1.1 nicm 165: */
1.48 nicm 166: needed = 0;
1.1 nicm 167: if (llen != 0)
1.48 nicm 168: needed += llen + 1;
1.1 nicm 169: if (rlen != 0)
1.48 nicm 170: needed += rlen + 1;
171: if (c->tty.sx == 0 || c->tty.sx <= needed)
172: goto out;
173: wlavailable = c->tty.sx - needed;
1.1 nicm 174:
1.48 nicm 175: /* Calculate the total size needed for the window list. */
176: wlstart = wloffset = wlwidth = 0;
1.1 nicm 177: RB_FOREACH(wl, winlinks, &s->windows) {
1.48 nicm 178: if (wl->status_text != NULL)
179: xfree(wl->status_text);
180: memcpy(&wl->status_cell, &stdgc, sizeof wl->status_cell);
181: wl->status_text = status_print(c, wl, t, &wl->status_cell);
182: wl->status_width =
183: screen_write_cstrlen(utf8flag, "%s", wl->status_text);
184:
1.1 nicm 185: if (wl == s->curw)
1.48 nicm 186: wloffset = wlwidth;
187: wlwidth += wl->status_width + 1;
188: }
189:
190: /* Create a new screen for the window list. */
191: screen_init(&window_list, wlwidth, 1, 0);
192:
193: /* And draw the window list into it. */
194: screen_write_start(&ctx, NULL, &window_list);
195: RB_FOREACH(wl, winlinks, &s->windows) {
196: screen_write_cnputs(&ctx,
197: -1, &wl->status_cell, utf8flag, "%s", wl->status_text);
198: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 199: }
1.48 nicm 200: screen_write_stop(&ctx);
1.1 nicm 201:
1.48 nicm 202: /* If there is enough space for the total width, skip to draw now. */
203: if (wlwidth <= wlavailable)
1.1 nicm 204: goto draw;
205:
206: /* Find size of current window text. */
1.48 nicm 207: wlsize = s->curw->status_width;
1.1 nicm 208:
209: /*
1.48 nicm 210: * If the current window is already on screen, good to draw from the
1.1 nicm 211: * start and just leave off the end.
212: */
1.48 nicm 213: if (wloffset + wlsize < wlavailable) {
214: if (wlavailable > 0) {
215: rarrow = 1;
216: wlavailable--;
217: }
218: wlwidth = wlavailable;
219: } else {
220: /*
221: * Work out how many characters we need to omit from the
222: * start. There are wlavailable characters to fill, and
223: * wloffset + wlsize must be the last. So, the start character
224: * is wloffset + wlsize - wlavailable.
225: */
226: if (wlavailable > 0) {
227: larrow = 1;
228: wlavailable--;
229: }
230:
231: wlstart = wloffset + wlsize - wlavailable;
232: if (wlavailable > 0 && wlwidth > wlstart + wlavailable + 1) {
1.1 nicm 233: rarrow = 1;
1.48 nicm 234: wlstart++;
235: wlavailable--;
1.1 nicm 236: }
1.48 nicm 237: wlwidth = wlavailable;
238: }
1.1 nicm 239:
1.48 nicm 240: /* Bail if anything is now too small too. */
241: if (wlwidth == 0 || wlavailable == 0) {
242: screen_free(&window_list);
243: goto out;
1.1 nicm 244: }
245:
246: /*
1.48 nicm 247: * Now the start position is known, work out the state of the left and
248: * right arrows.
1.1 nicm 249: */
250: offset = 0;
251: RB_FOREACH(wl, winlinks, &s->windows) {
1.48 nicm 252: if (larrow == 1 && offset < wlstart) {
1.1 nicm 253: if (session_alert_has(s, wl, WINDOW_ACTIVITY))
254: larrow = -1;
255: else if (session_alert_has(s, wl, WINDOW_BELL))
256: larrow = -1;
257: else if (session_alert_has(s, wl, WINDOW_CONTENT))
258: larrow = -1;
259: }
260:
1.48 nicm 261: offset += wl->status_width;
1.1 nicm 262:
1.48 nicm 263: if (rarrow == 1 && offset > wlstart + wlwidth) {
1.1 nicm 264: if (session_alert_has(s, wl, WINDOW_ACTIVITY))
265: rarrow = -1;
266: else if (session_alert_has(s, wl, WINDOW_BELL))
267: rarrow = -1;
268: else if (session_alert_has(s, wl, WINDOW_CONTENT))
269: rarrow = -1;
270: }
271: }
272:
1.48 nicm 273: draw:
274: /* Begin drawing. */
275: screen_write_start(&ctx, NULL, &c->status);
1.1 nicm 276:
1.48 nicm 277: /* Draw the left string and arrow. */
278: screen_write_cursormove(&ctx, 0, 0);
279: if (llen != 0) {
280: screen_write_cnputs(&ctx, llen, &lgc, utf8flag, "%s", left);
1.5 nicm 281: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 282: }
283: if (larrow != 0) {
284: memcpy(&gc, &stdgc, sizeof gc);
285: if (larrow == -1)
286: gc.attr ^= GRID_ATTR_REVERSE;
287: screen_write_putc(&ctx, &gc, '<');
288: }
1.48 nicm 289:
290: /* Draw the right string and arrow. */
1.1 nicm 291: if (rarrow != 0) {
1.48 nicm 292: screen_write_cursormove(&ctx, c->tty.sx - rlen - 2, 0);
1.1 nicm 293: memcpy(&gc, &stdgc, sizeof gc);
294: if (rarrow == -1)
295: gc.attr ^= GRID_ATTR_REVERSE;
296: screen_write_putc(&ctx, &gc, '>');
1.48 nicm 297: } else
298: screen_write_cursormove(&ctx, c->tty.sx - rlen - 1, 0);
299: if (rlen != 0) {
300: screen_write_putc(&ctx, &stdgc, ' ');
301: screen_write_cnputs(&ctx, rlen, &rgc, utf8flag, "%s", right);
1.1 nicm 302: }
303:
1.48 nicm 304: /* Figure out the offset for the window list. */
305: wloffset = 1;
306: if (wlwidth < wlavailable) {
307: switch (options_get_number(&s->options, "status-justify")) {
308: case 1: /* centered */
309: wloffset = 1 + (wlavailable - wlwidth) / 2;
310: break;
311: case 2: /* right */
312: wloffset = 1 + (wlavailable - wlwidth);
313: break;
314: }
315: }
316: wloffset += llen;
317: if (larrow != 0)
318: wloffset++;
319:
320: /* Copy the window list. */
321: screen_write_cursormove(&ctx, wloffset, 0);
322: screen_write_copy(&ctx, &window_list, wlstart, 0, wlwidth, 1);
323: screen_free(&window_list);
1.1 nicm 324:
1.48 nicm 325: screen_write_stop(&ctx);
1.1 nicm 326:
327: out:
328: if (left != NULL)
329: xfree(left);
330: if (right != NULL)
331: xfree(right);
332:
333: if (grid_compare(c->status.grid, old_status.grid) == 0) {
334: screen_free(&old_status);
335: return (0);
336: }
337: screen_free(&old_status);
338: return (1);
339: }
340:
1.46 nicm 341: /* Replace a single special sequence (prefixed by #). */
342: void
1.47 nicm 343: status_replace1(struct client *c,struct winlink *wl,
1.46 nicm 344: char **iptr, char **optr, char *out, size_t outsize, int jobsflag)
1.1 nicm 345: {
1.38 nicm 346: struct session *s = c->session;
1.46 nicm 347: char ch, tmp[256], *ptr, *endptr, *freeptr;
348: size_t ptrlen;
349: long limit;
350:
1.47 nicm 351: if (wl == NULL)
352: wl = s->curw;
353:
1.46 nicm 354: errno = 0;
355: limit = strtol(*iptr, &endptr, 10);
356: if ((limit == 0 && errno != EINVAL) ||
357: (limit == LONG_MIN && errno != ERANGE) ||
358: (limit == LONG_MAX && errno != ERANGE) ||
359: limit != 0)
360: *iptr = endptr;
361: if (limit <= 0)
362: limit = LONG_MAX;
363:
364: freeptr = NULL;
365:
366: switch (*(*iptr)++) {
367: case '(':
368: if (!jobsflag) {
369: ch = ')';
370: goto skip_to;
371: }
372: if ((ptr = status_job(c, iptr)) == NULL)
373: return;
374: freeptr = ptr;
375: goto do_replace;
376: case 'H':
377: if (gethostname(tmp, sizeof tmp) != 0)
378: fatal("gethostname failed");
379: ptr = tmp;
380: goto do_replace;
381: case 'I':
382: xsnprintf(tmp, sizeof tmp, "%d", wl->idx);
383: ptr = tmp;
384: goto do_replace;
385: case 'P':
386: xsnprintf(tmp, sizeof tmp, "%u",
387: window_pane_index(wl->window, wl->window->active));
388: ptr = tmp;
389: goto do_replace;
390: case 'S':
391: ptr = s->name;
392: goto do_replace;
393: case 'T':
394: ptr = wl->window->active->base.title;
395: goto do_replace;
396: case 'W':
397: ptr = wl->window->name;
398: goto do_replace;
1.47 nicm 399: case 'F':
400: tmp[0] = ' ';
401: if (session_alert_has(s, wl, WINDOW_CONTENT))
402: tmp[0] = '+';
403: else if (session_alert_has(s, wl, WINDOW_BELL))
404: tmp[0] = '!';
405: else if (session_alert_has(s, wl, WINDOW_ACTIVITY))
406: tmp[0] = '#';
407: else if (wl == s->curw)
408: tmp[0] = '*';
409: else if (wl == TAILQ_FIRST(&s->lastw))
410: tmp[0] = '-';
411: tmp[1] = '\0';
412: ptr = tmp;
413: goto do_replace;
1.46 nicm 414: case '[':
415: /*
416: * Embedded style, handled at display time. Leave present and
417: * skip input until ].
418: */
419: ch = ']';
420: goto skip_to;
421: case '#':
1.49 nicm 422: *(*optr)++ = '#';
1.46 nicm 423: break;
424: }
425:
426: return;
427:
428: do_replace:
429: ptrlen = strlen(ptr);
430: if ((size_t) limit < ptrlen)
431: ptrlen = limit;
432:
433: if (*optr + ptrlen >= out + outsize - 1)
434: return;
435: while (ptrlen > 0 && *ptr != '\0') {
436: *(*optr)++ = *ptr++;
437: ptrlen--;
438: }
439:
440: if (freeptr != NULL)
441: xfree(freeptr);
442: return;
443:
444: skip_to:
445: *(*optr)++ = '#';
446:
447: (*iptr)--; /* include ch */
448: while (**iptr != ch && **iptr != '\0') {
449: if (*optr >= out + outsize - 1)
450: break;
451: *(*optr)++ = *(*iptr)++;
452: }
453: }
454:
455: /* Replace special sequences in fmt. */
456: char *
1.47 nicm 457: status_replace(struct client *c,
458: struct winlink *wl, const char *fmt, time_t t, int jobsflag)
1.46 nicm 459: {
1.1 nicm 460: static char out[BUFSIZ];
1.46 nicm 461: char in[BUFSIZ], ch, *iptr, *optr;
1.47 nicm 462:
1.1 nicm 463: strftime(in, sizeof in, fmt, localtime(&t));
464: in[(sizeof in) - 1] = '\0';
465:
466: iptr = in;
467: optr = out;
468:
469: while (*iptr != '\0') {
470: if (optr >= out + (sizeof out) - 1)
471: break;
1.46 nicm 472: ch = *iptr++;
473:
474: if (ch != '#') {
1.1 nicm 475: *optr++ = ch;
1.46 nicm 476: continue;
1.1 nicm 477: }
1.47 nicm 478: status_replace1(c, wl, &iptr, &optr, out, sizeof out, jobsflag);
1.1 nicm 479: }
480: *optr = '\0';
481:
482: return (xstrdup(out));
483: }
484:
1.46 nicm 485: /* Figure out job name and get its result, starting it off if necessary. */
1.1 nicm 486: char *
1.38 nicm 487: status_job(struct client *c, char **iptr)
1.1 nicm 488: {
1.38 nicm 489: struct job *job;
1.40 nicm 490: char *cmd;
1.38 nicm 491: int lastesc;
492: size_t len;
1.1 nicm 493:
494: if (**iptr == '\0')
495: return (NULL);
496: if (**iptr == ')') { /* no command given */
497: (*iptr)++;
498: return (NULL);
499: }
500:
501: cmd = xmalloc(strlen(*iptr) + 1);
502: len = 0;
503:
504: lastesc = 0;
505: for (; **iptr != '\0'; (*iptr)++) {
506: if (!lastesc && **iptr == ')')
507: break; /* unescaped ) is the end */
508: if (!lastesc && **iptr == '\\') {
509: lastesc = 1;
510: continue; /* skip \ if not escaped */
511: }
512: lastesc = 0;
513: cmd[len++] = **iptr;
514: }
1.38 nicm 515: if (**iptr == '\0') /* no terminating ) */ {
516: xfree(cmd);
517: return (NULL);
518: }
1.1 nicm 519: (*iptr)++; /* skip final ) */
520: cmd[len] = '\0';
521:
1.38 nicm 522: job = job_get(&c->status_jobs, cmd);
523: if (job == NULL) {
1.39 nicm 524: job = job_add(&c->status_jobs,
525: JOB_PERSIST, c, cmd, status_job_callback, xfree, NULL);
1.38 nicm 526: job_run(job);
527: }
528: if (job->data == NULL)
529: return (xstrdup(""));
530: return (xstrdup(job->data));
531: }
1.1 nicm 532:
1.46 nicm 533: /* Job has finished: save its result. */
1.38 nicm 534: void
535: status_job_callback(struct job *job)
536: {
1.41 nicm 537: char *line, *buf;
1.38 nicm 538: size_t len;
539:
1.41 nicm 540: buf = NULL;
541: if ((line = evbuffer_readline(job->event->input)) == NULL) {
542: len = EVBUFFER_LENGTH(job->event->input);
543: buf = xmalloc(len + 1);
544: if (len != 0)
545: memcpy(buf, EVBUFFER_DATA(job->event->input), len);
546: buf[len] = '\0';
547: }
1.38 nicm 548:
549: if (job->data != NULL)
550: xfree(job->data);
551: else
552: server_redraw_client(job->client);
1.41 nicm 553: job->data = xstrdup(line);
1.1 nicm 554:
1.41 nicm 555: if (buf != NULL)
556: xfree(buf);
1.1 nicm 557: }
558:
1.46 nicm 559: /* Calculate winlink status line entry width. */
1.1 nicm 560: size_t
1.47 nicm 561: status_width(struct client *c, struct winlink *wl, time_t t)
1.1 nicm 562: {
1.47 nicm 563: struct options *oo = &wl->window->options;
564: struct session *s = c->session;
565: const char *fmt;
566: char *text;
567: size_t size;
568: int utf8flag;
569:
570: utf8flag = options_get_number(&s->options, "status-utf8");
571:
572: fmt = options_get_string(&wl->window->options, "window-status-format");
573: if (wl == s->curw)
574: fmt = options_get_string(oo, "window-status-current-format");
575:
576: text = status_replace(c, wl, fmt, t, 1);
577: size = screen_write_cstrlen(utf8flag, "%s", text);
578: xfree(text);
579:
580: return (size);
1.1 nicm 581: }
582:
1.46 nicm 583: /* Return winlink status line entry and adjust gc as necessary. */
1.1 nicm 584: char *
1.47 nicm 585: status_print(
586: struct client *c, struct winlink *wl, time_t t, struct grid_cell *gc)
1.1 nicm 587: {
1.33 nicm 588: struct options *oo = &wl->window->options;
1.47 nicm 589: struct session *s = c->session;
590: const char *fmt;
591: char *text;
1.33 nicm 592: u_char fg, bg, attr;
1.1 nicm 593:
1.33 nicm 594: fg = options_get_number(oo, "window-status-fg");
1.1 nicm 595: if (fg != 8)
1.33 nicm 596: colour_set_fg(gc, fg);
597: bg = options_get_number(oo, "window-status-bg");
1.1 nicm 598: if (bg != 8)
1.33 nicm 599: colour_set_bg(gc, bg);
600: attr = options_get_number(oo, "window-status-attr");
1.1 nicm 601: if (attr != 0)
602: gc->attr = attr;
1.47 nicm 603: fmt = options_get_string(oo, "window-status-format");
1.14 nicm 604: if (wl == s->curw) {
1.33 nicm 605: fg = options_get_number(oo, "window-status-current-fg");
1.14 nicm 606: if (fg != 8)
1.33 nicm 607: colour_set_fg(gc, fg);
608: bg = options_get_number(oo, "window-status-current-bg");
1.14 nicm 609: if (bg != 8)
1.33 nicm 610: colour_set_bg(gc, bg);
611: attr = options_get_number(oo, "window-status-current-attr");
1.14 nicm 612: if (attr != 0)
613: gc->attr = attr;
1.47 nicm 614: fmt = options_get_string(oo, "window-status-current-format");
1.14 nicm 615: }
1.1 nicm 616:
1.47 nicm 617: if (session_alert_has(s, wl, WINDOW_ACTIVITY) ||
618: session_alert_has(s, wl, WINDOW_BELL) ||
619: session_alert_has(s, wl, WINDOW_CONTENT))
1.1 nicm 620: gc->attr ^= GRID_ATTR_REVERSE;
621:
1.47 nicm 622: text = status_replace(c, wl, fmt, t, 1);
1.1 nicm 623: return (text);
624: }
625:
1.46 nicm 626: /* Set a status line message. */
1.10 nicm 627: void printflike2
628: status_message_set(struct client *c, const char *fmt, ...)
1.1 nicm 629: {
1.44 nicm 630: struct timeval tv;
631: struct session *s = c->session;
632: struct message_entry *msg;
633: va_list ap;
634: int delay;
635: u_int i, limit;
1.1 nicm 636:
1.12 nicm 637: status_prompt_clear(c);
638: status_message_clear(c);
639:
1.28 nicm 640: va_start(ap, fmt);
641: xvasprintf(&c->message_string, fmt, ap);
642: va_end(ap);
643:
1.44 nicm 644: ARRAY_EXPAND(&c->message_log, 1);
645: msg = &ARRAY_LAST(&c->message_log);
646: msg->msg_time = time(NULL);
647: msg->msg = xstrdup(c->message_string);
648:
649: if (s == NULL)
650: limit = 0;
651: else
652: limit = options_get_number(&s->options, "message-limit");
1.50 nicm 653: if (ARRAY_LENGTH(&c->message_log) > limit) {
654: limit = ARRAY_LENGTH(&c->message_log) - limit;
655: for (i = 0; i < limit; i++) {
656: msg = &ARRAY_FIRST(&c->message_log);
657: xfree(msg->msg);
658: ARRAY_REMOVE(&c->message_log, 0);
659: }
1.44 nicm 660: }
661:
1.1 nicm 662: delay = options_get_number(&c->session->options, "display-time");
663: tv.tv_sec = delay / 1000;
664: tv.tv_usec = (delay % 1000) * 1000L;
1.44 nicm 665:
1.42 nicm 666: evtimer_del(&c->message_timer);
667: evtimer_set(&c->message_timer, status_message_callback, c);
668: evtimer_add(&c->message_timer, &tv);
1.1 nicm 669:
670: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
671: c->flags |= CLIENT_STATUS;
672: }
673:
1.46 nicm 674: /* Clear status line message. */
1.1 nicm 675: void
676: status_message_clear(struct client *c)
677: {
678: if (c->message_string == NULL)
679: return;
680:
681: xfree(c->message_string);
682: c->message_string = NULL;
683:
684: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 685: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 686:
687: screen_reinit(&c->status);
1.42 nicm 688: }
689:
1.46 nicm 690: /* Clear status line message after timer expires. */
1.52 ! nicm 691: /* ARGSUSED */
1.42 nicm 692: void
693: status_message_callback(unused int fd, unused short event, void *data)
694: {
695: struct client *c = data;
696:
697: status_message_clear(c);
1.1 nicm 698: }
699:
700: /* Draw client message on status line of present else on last line. */
701: int
702: status_message_redraw(struct client *c)
703: {
704: struct screen_write_ctx ctx;
705: struct session *s = c->session;
706: struct screen old_status;
707: size_t len;
708: struct grid_cell gc;
1.51 nicm 709: int utf8flag;
1.1 nicm 710:
711: if (c->tty.sx == 0 || c->tty.sy == 0)
712: return (0);
713: memcpy(&old_status, &c->status, sizeof old_status);
714: screen_init(&c->status, c->tty.sx, 1, 0);
715:
1.51 nicm 716: utf8flag = options_get_number(&s->options, "status-utf8");
717:
718: len = screen_write_strlen(utf8flag, "%s", c->message_string);
1.1 nicm 719: if (len > c->tty.sx)
720: len = c->tty.sx;
721:
722: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 723: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
724: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 725: gc.attr |= options_get_number(&s->options, "message-attr");
726:
727: screen_write_start(&ctx, NULL, &c->status);
728:
729: screen_write_cursormove(&ctx, 0, 0);
1.51 nicm 730: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->message_string);
1.1 nicm 731: for (; len < c->tty.sx; len++)
732: screen_write_putc(&ctx, &gc, ' ');
733:
734: screen_write_stop(&ctx);
735:
736: if (grid_compare(c->status.grid, old_status.grid) == 0) {
737: screen_free(&old_status);
738: return (0);
739: }
740: screen_free(&old_status);
741: return (1);
742: }
743:
1.46 nicm 744: /* Enable status line prompt. */
1.1 nicm 745: void
1.12 nicm 746: status_prompt_set(struct client *c, const char *msg,
747: int (*callbackfn)(void *, const char *), void (*freefn)(void *),
748: void *data, int flags)
1.1 nicm 749: {
1.20 nicm 750: int keys;
751:
1.12 nicm 752: status_message_clear(c);
753: status_prompt_clear(c);
754:
1.1 nicm 755: c->prompt_string = xstrdup(msg);
756:
757: c->prompt_buffer = xstrdup("");
758: c->prompt_index = 0;
759:
1.12 nicm 760: c->prompt_callbackfn = callbackfn;
761: c->prompt_freefn = freefn;
1.1 nicm 762: c->prompt_data = data;
763:
764: c->prompt_hindex = 0;
765:
766: c->prompt_flags = flags;
767:
1.20 nicm 768: keys = options_get_number(&c->session->options, "status-keys");
769: if (keys == MODEKEY_EMACS)
1.21 nicm 770: mode_key_init(&c->prompt_mdata, &mode_key_tree_emacs_edit);
1.20 nicm 771: else
1.21 nicm 772: mode_key_init(&c->prompt_mdata, &mode_key_tree_vi_edit);
1.1 nicm 773:
774: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
775: c->flags |= CLIENT_STATUS;
776: }
777:
1.46 nicm 778: /* Remove status line prompt. */
1.1 nicm 779: void
780: status_prompt_clear(struct client *c)
781: {
1.12 nicm 782: if (c->prompt_string == NULL)
1.1 nicm 783: return;
784:
1.12 nicm 785: if (c->prompt_freefn != NULL && c->prompt_data != NULL)
786: c->prompt_freefn(c->prompt_data);
1.1 nicm 787:
788: xfree(c->prompt_string);
789: c->prompt_string = NULL;
790:
791: xfree(c->prompt_buffer);
792: c->prompt_buffer = NULL;
793:
794: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 795: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 796:
797: screen_reinit(&c->status);
1.27 nicm 798: }
799:
1.46 nicm 800: /* Update status line prompt with a new prompt string. */
1.27 nicm 801: void
802: status_prompt_update(struct client *c, const char *msg)
803: {
804: xfree(c->prompt_string);
805: c->prompt_string = xstrdup(msg);
806:
807: *c->prompt_buffer = '\0';
808: c->prompt_index = 0;
809:
810: c->prompt_hindex = 0;
811:
812: c->flags |= CLIENT_STATUS;
1.1 nicm 813: }
814:
815: /* Draw client prompt on status line of present else on last line. */
816: int
817: status_prompt_redraw(struct client *c)
818: {
1.51 nicm 819: struct screen_write_ctx ctx;
1.1 nicm 820: struct session *s = c->session;
821: struct screen old_status;
1.29 nicm 822: size_t i, size, left, len, off;
1.51 nicm 823: struct grid_cell gc, *gcp;
824: int utf8flag;
1.1 nicm 825:
826: if (c->tty.sx == 0 || c->tty.sy == 0)
827: return (0);
828: memcpy(&old_status, &c->status, sizeof old_status);
829: screen_init(&c->status, c->tty.sx, 1, 0);
830:
1.51 nicm 831: utf8flag = options_get_number(&s->options, "status-utf8");
832:
833: len = screen_write_strlen(utf8flag, "%s", c->prompt_string);
1.1 nicm 834: if (len > c->tty.sx)
835: len = c->tty.sx;
1.51 nicm 836: off = 0;
1.1 nicm 837:
838: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 839: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
840: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 841: gc.attr |= options_get_number(&s->options, "message-attr");
842:
843: screen_write_start(&ctx, NULL, &c->status);
844:
845: screen_write_cursormove(&ctx, 0, 0);
1.51 nicm 846: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->prompt_string);
1.1 nicm 847:
848: left = c->tty.sx - len;
849: if (left != 0) {
1.51 nicm 850: size = screen_write_strlen(utf8flag, "%s", c->prompt_buffer);
851: if (c->prompt_index >= left) {
1.17 nicm 852: off = c->prompt_index - left + 1;
1.51 nicm 853: if (c->prompt_index == size)
1.1 nicm 854: left--;
855: size = left;
856: }
1.51 nicm 857: screen_write_nputs(
858: &ctx, left, &gc, utf8flag, "%s", c->prompt_buffer + off);
1.1 nicm 859:
1.51 nicm 860: for (i = len + size; i < c->tty.sx; i++)
861: screen_write_putc(&ctx, &gc, ' ');
1.1 nicm 862: }
863:
864: screen_write_stop(&ctx);
1.51 nicm 865:
866: /* Apply fake cursor. */
867: off = len + c->prompt_index - off;
868: gcp = grid_view_get_cell(c->status.grid, off, 0);
869: gcp->attr ^= GRID_ATTR_REVERSE;
1.1 nicm 870:
871: if (grid_compare(c->status.grid, old_status.grid) == 0) {
872: screen_free(&old_status);
873: return (0);
874: }
875: screen_free(&old_status);
876: return (1);
877: }
878:
879: /* Handle keys in prompt. */
880: void
881: status_prompt_key(struct client *c, int key)
882: {
883: struct paste_buffer *pb;
1.30 nicm 884: char *s, *first, *last, word[64], swapc;
1.1 nicm 885: size_t size, n, off, idx;
886:
887: size = strlen(c->prompt_buffer);
888: switch (mode_key_lookup(&c->prompt_mdata, key)) {
1.20 nicm 889: case MODEKEYEDIT_CURSORLEFT:
1.1 nicm 890: if (c->prompt_index > 0) {
891: c->prompt_index--;
892: c->flags |= CLIENT_STATUS;
893: }
894: break;
1.20 nicm 895: case MODEKEYEDIT_SWITCHMODEAPPEND:
896: case MODEKEYEDIT_CURSORRIGHT:
1.1 nicm 897: if (c->prompt_index < size) {
898: c->prompt_index++;
899: c->flags |= CLIENT_STATUS;
900: }
901: break;
1.20 nicm 902: case MODEKEYEDIT_STARTOFLINE:
1.1 nicm 903: if (c->prompt_index != 0) {
904: c->prompt_index = 0;
905: c->flags |= CLIENT_STATUS;
906: }
907: break;
1.20 nicm 908: case MODEKEYEDIT_ENDOFLINE:
1.1 nicm 909: if (c->prompt_index != size) {
910: c->prompt_index = size;
911: c->flags |= CLIENT_STATUS;
912: }
913: break;
1.20 nicm 914: case MODEKEYEDIT_COMPLETE:
1.1 nicm 915: if (*c->prompt_buffer == '\0')
916: break;
917:
918: idx = c->prompt_index;
919: if (idx != 0)
920: idx--;
921:
922: /* Find the word we are in. */
923: first = c->prompt_buffer + idx;
924: while (first > c->prompt_buffer && *first != ' ')
925: first--;
926: while (*first == ' ')
927: first++;
928: last = c->prompt_buffer + idx;
929: while (*last != '\0' && *last != ' ')
930: last++;
931: while (*last == ' ')
932: last--;
933: if (*last != '\0')
934: last++;
935: if (last <= first ||
936: ((size_t) (last - first)) > (sizeof word) - 1)
937: break;
938: memcpy(word, first, last - first);
939: word[last - first] = '\0';
940:
941: /* And try to complete it. */
942: if ((s = status_prompt_complete(word)) == NULL)
943: break;
944:
945: /* Trim out word. */
946: n = size - (last - c->prompt_buffer) + 1; /* with \0 */
947: memmove(first, last, n);
948: size -= last - first;
949:
950: /* Insert the new word. */
951: size += strlen(s);
952: off = first - c->prompt_buffer;
953: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 1);
954: first = c->prompt_buffer + off;
955: memmove(first + strlen(s), first, n);
956: memcpy(first, s, strlen(s));
957:
958: c->prompt_index = (first - c->prompt_buffer) + strlen(s);
1.22 nicm 959: xfree(s);
1.1 nicm 960:
961: c->flags |= CLIENT_STATUS;
962: break;
1.20 nicm 963: case MODEKEYEDIT_BACKSPACE:
1.1 nicm 964: if (c->prompt_index != 0) {
965: if (c->prompt_index == size)
966: c->prompt_buffer[--c->prompt_index] = '\0';
967: else {
968: memmove(c->prompt_buffer + c->prompt_index - 1,
969: c->prompt_buffer + c->prompt_index,
970: size + 1 - c->prompt_index);
971: c->prompt_index--;
972: }
973: c->flags |= CLIENT_STATUS;
974: }
975: break;
1.20 nicm 976: case MODEKEYEDIT_DELETE:
1.1 nicm 977: if (c->prompt_index != size) {
978: memmove(c->prompt_buffer + c->prompt_index,
979: c->prompt_buffer + c->prompt_index + 1,
980: size + 1 - c->prompt_index);
1.18 nicm 981: c->flags |= CLIENT_STATUS;
982: }
1.26 nicm 983: break;
984: case MODEKEYEDIT_DELETELINE:
985: *c->prompt_buffer = '\0';
986: c->prompt_index = 0;
987: c->flags |= CLIENT_STATUS;
1.18 nicm 988: break;
1.20 nicm 989: case MODEKEYEDIT_DELETETOENDOFLINE:
1.18 nicm 990: if (c->prompt_index < size) {
991: c->prompt_buffer[c->prompt_index] = '\0';
1.1 nicm 992: c->flags |= CLIENT_STATUS;
993: }
994: break;
1.20 nicm 995: case MODEKEYEDIT_HISTORYUP:
1.1 nicm 996: if (ARRAY_LENGTH(&c->prompt_hdata) == 0)
997: break;
998: xfree(c->prompt_buffer);
999:
1000: c->prompt_buffer = xstrdup(ARRAY_ITEM(&c->prompt_hdata,
1001: ARRAY_LENGTH(&c->prompt_hdata) - 1 - c->prompt_hindex));
1002: if (c->prompt_hindex != ARRAY_LENGTH(&c->prompt_hdata) - 1)
1003: c->prompt_hindex++;
1004:
1005: c->prompt_index = strlen(c->prompt_buffer);
1006: c->flags |= CLIENT_STATUS;
1007: break;
1.20 nicm 1008: case MODEKEYEDIT_HISTORYDOWN:
1.1 nicm 1009: xfree(c->prompt_buffer);
1010:
1011: if (c->prompt_hindex != 0) {
1012: c->prompt_hindex--;
1013: c->prompt_buffer = xstrdup(ARRAY_ITEM(
1014: &c->prompt_hdata, ARRAY_LENGTH(
1015: &c->prompt_hdata) - 1 - c->prompt_hindex));
1016: } else
1017: c->prompt_buffer = xstrdup("");
1018:
1019: c->prompt_index = strlen(c->prompt_buffer);
1020: c->flags |= CLIENT_STATUS;
1021: break;
1.20 nicm 1022: case MODEKEYEDIT_PASTE:
1.1 nicm 1023: if ((pb = paste_get_top(&c->session->buffers)) == NULL)
1024: break;
1.32 nicm 1025: for (n = 0; n < pb->size; n++) {
1026: if (pb->data[n] < 32 || pb->data[n] == 127)
1027: break;
1028: }
1.1 nicm 1029:
1030: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + n + 1);
1031: if (c->prompt_index == size) {
1032: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
1033: c->prompt_index += n;
1034: c->prompt_buffer[c->prompt_index] = '\0';
1035: } else {
1036: memmove(c->prompt_buffer + c->prompt_index + n,
1037: c->prompt_buffer + c->prompt_index,
1038: size + 1 - c->prompt_index);
1039: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
1040: c->prompt_index += n;
1041: }
1042:
1043: c->flags |= CLIENT_STATUS;
1.30 nicm 1044: break;
1045: case MODEKEYEDIT_TRANSPOSECHARS:
1046: idx = c->prompt_index;
1047: if (idx < size)
1048: idx++;
1049: if (idx >= 2) {
1050: swapc = c->prompt_buffer[idx - 2];
1051: c->prompt_buffer[idx - 2] = c->prompt_buffer[idx - 1];
1052: c->prompt_buffer[idx - 1] = swapc;
1053: c->prompt_index = idx;
1054: c->flags |= CLIENT_STATUS;
1055: }
1.1 nicm 1056: break;
1.20 nicm 1057: case MODEKEYEDIT_ENTER:
1.25 nicm 1058: if (*c->prompt_buffer != '\0')
1.1 nicm 1059: status_prompt_add_history(c);
1.25 nicm 1060: if (c->prompt_callbackfn(c->prompt_data, c->prompt_buffer) == 0)
1061: status_prompt_clear(c);
1062: break;
1.20 nicm 1063: case MODEKEYEDIT_CANCEL:
1.12 nicm 1064: if (c->prompt_callbackfn(c->prompt_data, NULL) == 0)
1.1 nicm 1065: status_prompt_clear(c);
1066: break;
1.20 nicm 1067: case MODEKEY_OTHER:
1.43 nicm 1068: if (key < 32 || key == 127)
1.1 nicm 1069: break;
1070: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 2);
1071:
1072: if (c->prompt_index == size) {
1073: c->prompt_buffer[c->prompt_index++] = key;
1074: c->prompt_buffer[c->prompt_index] = '\0';
1075: } else {
1076: memmove(c->prompt_buffer + c->prompt_index + 1,
1077: c->prompt_buffer + c->prompt_index,
1078: size + 1 - c->prompt_index);
1079: c->prompt_buffer[c->prompt_index++] = key;
1080: }
1081:
1082: if (c->prompt_flags & PROMPT_SINGLE) {
1.12 nicm 1083: if (c->prompt_callbackfn(
1.1 nicm 1084: c->prompt_data, c->prompt_buffer) == 0)
1085: status_prompt_clear(c);
1086: }
1087:
1088: c->flags |= CLIENT_STATUS;
1089: break;
1090: default:
1091: break;
1092: }
1093: }
1094:
1095: /* Add line to the history. */
1096: void
1097: status_prompt_add_history(struct client *c)
1098: {
1099: if (ARRAY_LENGTH(&c->prompt_hdata) > 0 &&
1100: strcmp(ARRAY_LAST(&c->prompt_hdata), c->prompt_buffer) == 0)
1101: return;
1102:
1103: if (ARRAY_LENGTH(&c->prompt_hdata) == PROMPT_HISTORY) {
1104: xfree(ARRAY_FIRST(&c->prompt_hdata));
1105: ARRAY_REMOVE(&c->prompt_hdata, 0);
1106: }
1107:
1108: ARRAY_ADD(&c->prompt_hdata, xstrdup(c->prompt_buffer));
1109: }
1110:
1111: /* Complete word. */
1112: char *
1113: status_prompt_complete(const char *s)
1114: {
1115: const struct cmd_entry **cmdent;
1116: const struct set_option_entry *optent;
1117: ARRAY_DECL(, const char *) list;
1118: char *prefix, *s2;
1.9 nicm 1119: u_int i;
1.1 nicm 1120: size_t j;
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);
1130: }
1.9 nicm 1131: for (optent = set_option_table; optent->name != NULL; optent++) {
1.1 nicm 1132: if (strncmp(optent->name, s, strlen(s)) == 0)
1133: ARRAY_ADD(&list, optent->name);
1134: }
1.9 nicm 1135: for (optent = set_window_option_table; optent->name != NULL; optent++) {
1.1 nicm 1136: if (strncmp(optent->name, s, strlen(s)) == 0)
1137: ARRAY_ADD(&list, optent->name);
1138: }
1139:
1140: /* If none, bail now. */
1141: if (ARRAY_LENGTH(&list) == 0) {
1142: ARRAY_FREE(&list);
1143: return (NULL);
1144: }
1145:
1146: /* If an exact match, return it, with a trailing space. */
1147: if (ARRAY_LENGTH(&list) == 1) {
1148: xasprintf(&s2, "%s ", ARRAY_FIRST(&list));
1149: ARRAY_FREE(&list);
1150: return (s2);
1151: }
1152:
1153: /* Now loop through the list and find the longest common prefix. */
1154: prefix = xstrdup(ARRAY_FIRST(&list));
1155: for (i = 1; i < ARRAY_LENGTH(&list); i++) {
1156: s = ARRAY_ITEM(&list, i);
1157:
1158: j = strlen(s);
1159: if (j > strlen(prefix))
1160: j = strlen(prefix);
1161: for (; j > 0; j--) {
1162: if (prefix[j - 1] != s[j - 1])
1163: prefix[j - 1] = '\0';
1164: }
1165: }
1166:
1167: ARRAY_FREE(&list);
1168: return (prefix);
1169: }
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