Annotation of src/usr.bin/tmux/status.c, Revision 1.51
1.51 ! nicm 1: /* $OpenBSD: status.c,v 1.50 2009/11/20 06:33:26 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. */
1.42 nicm 691: void
692: status_message_callback(unused int fd, unused short event, void *data)
693: {
694: struct client *c = data;
695:
696: status_message_clear(c);
1.1 nicm 697: }
698:
699: /* Draw client message on status line of present else on last line. */
700: int
701: status_message_redraw(struct client *c)
702: {
703: struct screen_write_ctx ctx;
704: struct session *s = c->session;
705: struct screen old_status;
706: size_t len;
707: struct grid_cell gc;
1.51 ! nicm 708: int utf8flag;
1.1 nicm 709:
710: if (c->tty.sx == 0 || c->tty.sy == 0)
711: return (0);
712: memcpy(&old_status, &c->status, sizeof old_status);
713: screen_init(&c->status, c->tty.sx, 1, 0);
714:
1.51 ! nicm 715: utf8flag = options_get_number(&s->options, "status-utf8");
! 716:
! 717: len = screen_write_strlen(utf8flag, "%s", c->message_string);
1.1 nicm 718: if (len > c->tty.sx)
719: len = c->tty.sx;
720:
721: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 722: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
723: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 724: gc.attr |= options_get_number(&s->options, "message-attr");
725:
726: screen_write_start(&ctx, NULL, &c->status);
727:
728: screen_write_cursormove(&ctx, 0, 0);
1.51 ! nicm 729: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->message_string);
1.1 nicm 730: for (; len < c->tty.sx; len++)
731: screen_write_putc(&ctx, &gc, ' ');
732:
733: screen_write_stop(&ctx);
734:
735: if (grid_compare(c->status.grid, old_status.grid) == 0) {
736: screen_free(&old_status);
737: return (0);
738: }
739: screen_free(&old_status);
740: return (1);
741: }
742:
1.46 nicm 743: /* Enable status line prompt. */
1.1 nicm 744: void
1.12 nicm 745: status_prompt_set(struct client *c, const char *msg,
746: int (*callbackfn)(void *, const char *), void (*freefn)(void *),
747: void *data, int flags)
1.1 nicm 748: {
1.20 nicm 749: int keys;
750:
1.12 nicm 751: status_message_clear(c);
752: status_prompt_clear(c);
753:
1.1 nicm 754: c->prompt_string = xstrdup(msg);
755:
756: c->prompt_buffer = xstrdup("");
757: c->prompt_index = 0;
758:
1.12 nicm 759: c->prompt_callbackfn = callbackfn;
760: c->prompt_freefn = freefn;
1.1 nicm 761: c->prompt_data = data;
762:
763: c->prompt_hindex = 0;
764:
765: c->prompt_flags = flags;
766:
1.20 nicm 767: keys = options_get_number(&c->session->options, "status-keys");
768: if (keys == MODEKEY_EMACS)
1.21 nicm 769: mode_key_init(&c->prompt_mdata, &mode_key_tree_emacs_edit);
1.20 nicm 770: else
1.21 nicm 771: mode_key_init(&c->prompt_mdata, &mode_key_tree_vi_edit);
1.1 nicm 772:
773: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
774: c->flags |= CLIENT_STATUS;
775: }
776:
1.46 nicm 777: /* Remove status line prompt. */
1.1 nicm 778: void
779: status_prompt_clear(struct client *c)
780: {
1.12 nicm 781: if (c->prompt_string == NULL)
1.1 nicm 782: return;
783:
1.12 nicm 784: if (c->prompt_freefn != NULL && c->prompt_data != NULL)
785: c->prompt_freefn(c->prompt_data);
1.1 nicm 786:
787: xfree(c->prompt_string);
788: c->prompt_string = NULL;
789:
790: xfree(c->prompt_buffer);
791: c->prompt_buffer = NULL;
792:
793: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 794: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 795:
796: screen_reinit(&c->status);
1.27 nicm 797: }
798:
1.46 nicm 799: /* Update status line prompt with a new prompt string. */
1.27 nicm 800: void
801: status_prompt_update(struct client *c, const char *msg)
802: {
803: xfree(c->prompt_string);
804: c->prompt_string = xstrdup(msg);
805:
806: *c->prompt_buffer = '\0';
807: c->prompt_index = 0;
808:
809: c->prompt_hindex = 0;
810:
811: c->flags |= CLIENT_STATUS;
1.1 nicm 812: }
813:
814: /* Draw client prompt on status line of present else on last line. */
815: int
816: status_prompt_redraw(struct client *c)
817: {
1.51 ! nicm 818: struct screen_write_ctx ctx;
1.1 nicm 819: struct session *s = c->session;
820: struct screen old_status;
1.29 nicm 821: size_t i, size, left, len, off;
1.51 ! nicm 822: struct grid_cell gc, *gcp;
! 823: int utf8flag;
1.1 nicm 824:
825: if (c->tty.sx == 0 || c->tty.sy == 0)
826: return (0);
827: memcpy(&old_status, &c->status, sizeof old_status);
828: screen_init(&c->status, c->tty.sx, 1, 0);
829:
1.51 ! nicm 830: utf8flag = options_get_number(&s->options, "status-utf8");
! 831:
! 832: len = screen_write_strlen(utf8flag, "%s", c->prompt_string);
1.1 nicm 833: if (len > c->tty.sx)
834: len = c->tty.sx;
1.51 ! nicm 835: off = 0;
1.1 nicm 836:
837: memcpy(&gc, &grid_default_cell, sizeof gc);
1.33 nicm 838: colour_set_fg(&gc, options_get_number(&s->options, "message-fg"));
839: colour_set_bg(&gc, options_get_number(&s->options, "message-bg"));
1.1 nicm 840: gc.attr |= options_get_number(&s->options, "message-attr");
841:
842: screen_write_start(&ctx, NULL, &c->status);
843:
844: screen_write_cursormove(&ctx, 0, 0);
1.51 ! nicm 845: screen_write_nputs(&ctx, len, &gc, utf8flag, "%s", c->prompt_string);
1.1 nicm 846:
847: left = c->tty.sx - len;
848: if (left != 0) {
1.51 ! nicm 849: size = screen_write_strlen(utf8flag, "%s", c->prompt_buffer);
! 850: if (c->prompt_index >= left) {
1.17 nicm 851: off = c->prompt_index - left + 1;
1.51 ! nicm 852: if (c->prompt_index == size)
1.1 nicm 853: left--;
854: size = left;
855: }
1.51 ! nicm 856: screen_write_nputs(
! 857: &ctx, left, &gc, utf8flag, "%s", c->prompt_buffer + off);
1.1 nicm 858:
1.51 ! nicm 859: for (i = len + size; i < c->tty.sx; i++)
! 860: screen_write_putc(&ctx, &gc, ' ');
1.1 nicm 861: }
862:
863: screen_write_stop(&ctx);
1.51 ! nicm 864:
! 865: /* Apply fake cursor. */
! 866: off = len + c->prompt_index - off;
! 867: gcp = grid_view_get_cell(c->status.grid, off, 0);
! 868: gcp->attr ^= GRID_ATTR_REVERSE;
1.1 nicm 869:
870: if (grid_compare(c->status.grid, old_status.grid) == 0) {
871: screen_free(&old_status);
872: return (0);
873: }
874: screen_free(&old_status);
875: return (1);
876: }
877:
878: /* Handle keys in prompt. */
879: void
880: status_prompt_key(struct client *c, int key)
881: {
882: struct paste_buffer *pb;
1.30 nicm 883: char *s, *first, *last, word[64], swapc;
1.1 nicm 884: size_t size, n, off, idx;
885:
886: size = strlen(c->prompt_buffer);
887: switch (mode_key_lookup(&c->prompt_mdata, key)) {
1.20 nicm 888: case MODEKEYEDIT_CURSORLEFT:
1.1 nicm 889: if (c->prompt_index > 0) {
890: c->prompt_index--;
891: c->flags |= CLIENT_STATUS;
892: }
893: break;
1.20 nicm 894: case MODEKEYEDIT_SWITCHMODEAPPEND:
895: case MODEKEYEDIT_CURSORRIGHT:
1.1 nicm 896: if (c->prompt_index < size) {
897: c->prompt_index++;
898: c->flags |= CLIENT_STATUS;
899: }
900: break;
1.20 nicm 901: case MODEKEYEDIT_STARTOFLINE:
1.1 nicm 902: if (c->prompt_index != 0) {
903: c->prompt_index = 0;
904: c->flags |= CLIENT_STATUS;
905: }
906: break;
1.20 nicm 907: case MODEKEYEDIT_ENDOFLINE:
1.1 nicm 908: if (c->prompt_index != size) {
909: c->prompt_index = size;
910: c->flags |= CLIENT_STATUS;
911: }
912: break;
1.20 nicm 913: case MODEKEYEDIT_COMPLETE:
1.1 nicm 914: if (*c->prompt_buffer == '\0')
915: break;
916:
917: idx = c->prompt_index;
918: if (idx != 0)
919: idx--;
920:
921: /* Find the word we are in. */
922: first = c->prompt_buffer + idx;
923: while (first > c->prompt_buffer && *first != ' ')
924: first--;
925: while (*first == ' ')
926: first++;
927: last = c->prompt_buffer + idx;
928: while (*last != '\0' && *last != ' ')
929: last++;
930: while (*last == ' ')
931: last--;
932: if (*last != '\0')
933: last++;
934: if (last <= first ||
935: ((size_t) (last - first)) > (sizeof word) - 1)
936: break;
937: memcpy(word, first, last - first);
938: word[last - first] = '\0';
939:
940: /* And try to complete it. */
941: if ((s = status_prompt_complete(word)) == NULL)
942: break;
943:
944: /* Trim out word. */
945: n = size - (last - c->prompt_buffer) + 1; /* with \0 */
946: memmove(first, last, n);
947: size -= last - first;
948:
949: /* Insert the new word. */
950: size += strlen(s);
951: off = first - c->prompt_buffer;
952: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 1);
953: first = c->prompt_buffer + off;
954: memmove(first + strlen(s), first, n);
955: memcpy(first, s, strlen(s));
956:
957: c->prompt_index = (first - c->prompt_buffer) + strlen(s);
1.22 nicm 958: xfree(s);
1.1 nicm 959:
960: c->flags |= CLIENT_STATUS;
961: break;
1.20 nicm 962: case MODEKEYEDIT_BACKSPACE:
1.1 nicm 963: if (c->prompt_index != 0) {
964: if (c->prompt_index == size)
965: c->prompt_buffer[--c->prompt_index] = '\0';
966: else {
967: memmove(c->prompt_buffer + c->prompt_index - 1,
968: c->prompt_buffer + c->prompt_index,
969: size + 1 - c->prompt_index);
970: c->prompt_index--;
971: }
972: c->flags |= CLIENT_STATUS;
973: }
974: break;
1.20 nicm 975: case MODEKEYEDIT_DELETE:
1.1 nicm 976: if (c->prompt_index != size) {
977: memmove(c->prompt_buffer + c->prompt_index,
978: c->prompt_buffer + c->prompt_index + 1,
979: size + 1 - c->prompt_index);
1.18 nicm 980: c->flags |= CLIENT_STATUS;
981: }
1.26 nicm 982: break;
983: case MODEKEYEDIT_DELETELINE:
984: *c->prompt_buffer = '\0';
985: c->prompt_index = 0;
986: c->flags |= CLIENT_STATUS;
1.18 nicm 987: break;
1.20 nicm 988: case MODEKEYEDIT_DELETETOENDOFLINE:
1.18 nicm 989: if (c->prompt_index < size) {
990: c->prompt_buffer[c->prompt_index] = '\0';
1.1 nicm 991: c->flags |= CLIENT_STATUS;
992: }
993: break;
1.20 nicm 994: case MODEKEYEDIT_HISTORYUP:
1.1 nicm 995: if (ARRAY_LENGTH(&c->prompt_hdata) == 0)
996: break;
997: xfree(c->prompt_buffer);
998:
999: c->prompt_buffer = xstrdup(ARRAY_ITEM(&c->prompt_hdata,
1000: ARRAY_LENGTH(&c->prompt_hdata) - 1 - c->prompt_hindex));
1001: if (c->prompt_hindex != ARRAY_LENGTH(&c->prompt_hdata) - 1)
1002: c->prompt_hindex++;
1003:
1004: c->prompt_index = strlen(c->prompt_buffer);
1005: c->flags |= CLIENT_STATUS;
1006: break;
1.20 nicm 1007: case MODEKEYEDIT_HISTORYDOWN:
1.1 nicm 1008: xfree(c->prompt_buffer);
1009:
1010: if (c->prompt_hindex != 0) {
1011: c->prompt_hindex--;
1012: c->prompt_buffer = xstrdup(ARRAY_ITEM(
1013: &c->prompt_hdata, ARRAY_LENGTH(
1014: &c->prompt_hdata) - 1 - c->prompt_hindex));
1015: } else
1016: c->prompt_buffer = xstrdup("");
1017:
1018: c->prompt_index = strlen(c->prompt_buffer);
1019: c->flags |= CLIENT_STATUS;
1020: break;
1.20 nicm 1021: case MODEKEYEDIT_PASTE:
1.1 nicm 1022: if ((pb = paste_get_top(&c->session->buffers)) == NULL)
1023: break;
1.32 nicm 1024: for (n = 0; n < pb->size; n++) {
1025: if (pb->data[n] < 32 || pb->data[n] == 127)
1026: break;
1027: }
1.1 nicm 1028:
1029: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + n + 1);
1030: if (c->prompt_index == size) {
1031: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
1032: c->prompt_index += n;
1033: c->prompt_buffer[c->prompt_index] = '\0';
1034: } else {
1035: memmove(c->prompt_buffer + c->prompt_index + n,
1036: c->prompt_buffer + c->prompt_index,
1037: size + 1 - c->prompt_index);
1038: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
1039: c->prompt_index += n;
1040: }
1041:
1042: c->flags |= CLIENT_STATUS;
1.30 nicm 1043: break;
1044: case MODEKEYEDIT_TRANSPOSECHARS:
1045: idx = c->prompt_index;
1046: if (idx < size)
1047: idx++;
1048: if (idx >= 2) {
1049: swapc = c->prompt_buffer[idx - 2];
1050: c->prompt_buffer[idx - 2] = c->prompt_buffer[idx - 1];
1051: c->prompt_buffer[idx - 1] = swapc;
1052: c->prompt_index = idx;
1053: c->flags |= CLIENT_STATUS;
1054: }
1.1 nicm 1055: break;
1.20 nicm 1056: case MODEKEYEDIT_ENTER:
1.25 nicm 1057: if (*c->prompt_buffer != '\0')
1.1 nicm 1058: status_prompt_add_history(c);
1.25 nicm 1059: if (c->prompt_callbackfn(c->prompt_data, c->prompt_buffer) == 0)
1060: status_prompt_clear(c);
1061: break;
1.20 nicm 1062: case MODEKEYEDIT_CANCEL:
1.12 nicm 1063: if (c->prompt_callbackfn(c->prompt_data, NULL) == 0)
1.1 nicm 1064: status_prompt_clear(c);
1065: break;
1.20 nicm 1066: case MODEKEY_OTHER:
1.43 nicm 1067: if (key < 32 || key == 127)
1.1 nicm 1068: break;
1069: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 2);
1070:
1071: if (c->prompt_index == size) {
1072: c->prompt_buffer[c->prompt_index++] = key;
1073: c->prompt_buffer[c->prompt_index] = '\0';
1074: } else {
1075: memmove(c->prompt_buffer + c->prompt_index + 1,
1076: c->prompt_buffer + c->prompt_index,
1077: size + 1 - c->prompt_index);
1078: c->prompt_buffer[c->prompt_index++] = key;
1079: }
1080:
1081: if (c->prompt_flags & PROMPT_SINGLE) {
1.12 nicm 1082: if (c->prompt_callbackfn(
1.1 nicm 1083: c->prompt_data, c->prompt_buffer) == 0)
1084: status_prompt_clear(c);
1085: }
1086:
1087: c->flags |= CLIENT_STATUS;
1088: break;
1089: default:
1090: break;
1091: }
1092: }
1093:
1094: /* Add line to the history. */
1095: void
1096: status_prompt_add_history(struct client *c)
1097: {
1098: if (ARRAY_LENGTH(&c->prompt_hdata) > 0 &&
1099: strcmp(ARRAY_LAST(&c->prompt_hdata), c->prompt_buffer) == 0)
1100: return;
1101:
1102: if (ARRAY_LENGTH(&c->prompt_hdata) == PROMPT_HISTORY) {
1103: xfree(ARRAY_FIRST(&c->prompt_hdata));
1104: ARRAY_REMOVE(&c->prompt_hdata, 0);
1105: }
1106:
1107: ARRAY_ADD(&c->prompt_hdata, xstrdup(c->prompt_buffer));
1108: }
1109:
1110: /* Complete word. */
1111: char *
1112: status_prompt_complete(const char *s)
1113: {
1114: const struct cmd_entry **cmdent;
1115: const struct set_option_entry *optent;
1116: ARRAY_DECL(, const char *) list;
1117: char *prefix, *s2;
1.9 nicm 1118: u_int i;
1.1 nicm 1119: size_t j;
1120:
1121: if (*s == '\0')
1122: return (NULL);
1123:
1124: /* First, build a list of all the possible matches. */
1125: ARRAY_INIT(&list);
1126: for (cmdent = cmd_table; *cmdent != NULL; cmdent++) {
1127: if (strncmp((*cmdent)->name, s, strlen(s)) == 0)
1128: ARRAY_ADD(&list, (*cmdent)->name);
1129: }
1.9 nicm 1130: for (optent = set_option_table; optent->name != NULL; optent++) {
1.1 nicm 1131: if (strncmp(optent->name, s, strlen(s)) == 0)
1132: ARRAY_ADD(&list, optent->name);
1133: }
1.9 nicm 1134: for (optent = set_window_option_table; optent->name != NULL; optent++) {
1.1 nicm 1135: if (strncmp(optent->name, s, strlen(s)) == 0)
1136: ARRAY_ADD(&list, optent->name);
1137: }
1138:
1139: /* If none, bail now. */
1140: if (ARRAY_LENGTH(&list) == 0) {
1141: ARRAY_FREE(&list);
1142: return (NULL);
1143: }
1144:
1145: /* If an exact match, return it, with a trailing space. */
1146: if (ARRAY_LENGTH(&list) == 1) {
1147: xasprintf(&s2, "%s ", ARRAY_FIRST(&list));
1148: ARRAY_FREE(&list);
1149: return (s2);
1150: }
1151:
1152: /* Now loop through the list and find the longest common prefix. */
1153: prefix = xstrdup(ARRAY_FIRST(&list));
1154: for (i = 1; i < ARRAY_LENGTH(&list); i++) {
1155: s = ARRAY_ITEM(&list, i);
1156:
1157: j = strlen(s);
1158: if (j > strlen(prefix))
1159: j = strlen(prefix);
1160: for (; j > 0; j--) {
1161: if (prefix[j - 1] != s[j - 1])
1162: prefix[j - 1] = '\0';
1163: }
1164: }
1165:
1166: ARRAY_FREE(&list);
1167: return (prefix);
1168: }
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