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1.31 ! nicm 1: /* $OpenBSD: status.c,v 1.30 2009/09/02 06:33:20 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:
32: char *status_replace_popen(char **);
33: size_t status_width(struct winlink *);
34: char *status_print(struct session *, struct winlink *, struct grid_cell *);
35:
36: void status_prompt_add_history(struct client *);
37: char *status_prompt_complete(const char *);
38:
39: /* Draw status for client on the last lines of given context. */
40: int
41: status_redraw(struct client *c)
42: {
43: struct screen_write_ctx ctx;
44: struct session *s = c->session;
45: struct winlink *wl;
1.7 nicm 46: struct screen old_status;
1.1 nicm 47: char *left, *right, *text, *ptr;
1.2 nicm 48: size_t llen, llen2, rlen, rlen2, offset;
1.15 nicm 49: size_t ox, xx, yy, size, start, width;
1.24 nicm 50: struct grid_cell stdgc, sl_stdgc, sr_stdgc, gc;
1.3 nicm 51: int larrow, rarrow, utf8flag;
1.24 nicm 52: int sl_fg, sl_bg, sr_fg, sr_bg;
53: int sl_attr, sr_attr;
1.1 nicm 54:
55: left = right = NULL;
56:
1.7 nicm 57: /* No status line?*/
58: if (c->tty.sy == 0 || !options_get_number(&s->options, "status"))
59: return (1);
60: larrow = rarrow = 0;
1.1 nicm 61:
1.7 nicm 62: /* Create the target screen. */
63: memcpy(&old_status, &c->status, sizeof old_status);
64: screen_init(&c->status, c->tty.sx, 1, 0);
1.1 nicm 65:
66: if (gettimeofday(&c->status_timer, NULL) != 0)
67: fatal("gettimeofday");
68: memcpy(&stdgc, &grid_default_cell, sizeof gc);
1.23 nicm 69: stdgc.fg = options_get_number(&s->options, "status-fg");
70: stdgc.bg = options_get_number(&s->options, "status-bg");
1.1 nicm 71: stdgc.attr |= options_get_number(&s->options, "status-attr");
72:
1.24 nicm 73: /*
74: * Set the status-left and status-right parts to the default status
75: * line options and only change them where they differ from the
76: * defaults.
77: */
78: memcpy(&sl_stdgc, &stdgc, sizeof sl_stdgc);
79: memcpy(&sr_stdgc, &stdgc, sizeof sr_stdgc);
80: sl_fg = options_get_number(&s->options, "status-left-fg");
81: if (sl_fg != 8)
82: sl_stdgc.fg = sl_fg;
83: sl_bg = options_get_number(&s->options, "status-left-bg");
84: if (sl_bg != 8)
85: sl_stdgc.bg = sl_bg;
86: sl_attr = options_get_number(&s->options, "status-left-attr");
87: if (sl_attr != 0)
88: sl_stdgc.attr = sl_attr;
89: sr_fg = options_get_number(&s->options, "status-right-fg");
90: if (sr_fg != 8)
91: sr_stdgc.fg = sr_fg;
92: sr_bg = options_get_number(&s->options, "status-right-bg");
93: if (sr_bg != 8)
94: sr_stdgc.bg = sr_bg;
95: sr_attr = options_get_number(&s->options, "status-right-attr");
96: if (sr_attr != 0)
97: sr_stdgc.attr = sr_attr;
98:
1.1 nicm 99: yy = c->tty.sy - 1;
100: if (yy == 0)
101: goto blank;
102:
1.3 nicm 103: /* Caring about UTF-8 in status line? */
104: utf8flag = options_get_number(&s->options, "status-utf8");
105:
1.1 nicm 106: /* Work out the left and right strings. */
107: left = status_replace(s, options_get_string(
108: &s->options, "status-left"), c->status_timer.tv_sec);
109: llen = options_get_number(&s->options, "status-left-length");
1.31 ! nicm 110: llen2 = screen_write_cstrlen(utf8flag, "%s", left);
1.2 nicm 111: if (llen2 < llen)
112: llen = llen2;
1.1 nicm 113:
114: right = status_replace(s, options_get_string(
115: &s->options, "status-right"), c->status_timer.tv_sec);
116: rlen = options_get_number(&s->options, "status-right-length");
1.31 ! nicm 117: rlen2 = screen_write_cstrlen(utf8flag, "%s", right);
1.2 nicm 118: if (rlen2 < rlen)
119: rlen = rlen2;
1.1 nicm 120:
121: /*
122: * Figure out how much space we have for the window list. If there isn't
123: * enough space, just wimp out.
124: */
125: xx = 0;
126: if (llen != 0)
127: xx += llen + 1;
128: if (rlen != 0)
129: xx += rlen + 1;
130: if (c->tty.sx == 0 || c->tty.sx <= xx)
131: goto blank;
132: xx = c->tty.sx - xx;
133:
134: /*
135: * Right. We have xx characters to fill. Find out how much is to go in
136: * them and the offset of the current window (it must be on screen).
137: */
138: width = offset = 0;
139: RB_FOREACH(wl, winlinks, &s->windows) {
140: size = status_width(wl) + 1;
141: if (wl == s->curw)
142: offset = width;
143: width += size;
144: }
145: start = 0;
146:
147: /* If there is enough space for the total width, all is gravy. */
148: if (width <= xx)
149: goto draw;
150:
151: /* Find size of current window text. */
152: size = status_width(s->curw);
153:
154: /*
155: * If the offset is already on screen, we're good to draw from the
156: * start and just leave off the end.
157: */
158: if (offset + size < xx) {
159: if (xx > 0) {
160: rarrow = 1;
161: xx--;
162: }
163:
164: width = xx;
165: goto draw;
166: }
167:
168: /*
169: * Work out how many characters we need to omit from the start. There
170: * are xx characters to fill, and offset + size must be the last. So,
171: * the start character is offset + size - xx.
172: */
173: if (xx > 0) {
174: larrow = 1;
175: xx--;
176: }
177:
178: start = offset + size - xx;
179: if (xx > 0 && width > start + xx + 1) { /* + 1, eh? */
180: rarrow = 1;
181: start++;
182: xx--;
183: }
184: width = xx;
185:
186: draw:
187: /* Bail here if anything is too small too. XXX. */
188: if (width == 0 || xx == 0)
189: goto blank;
190:
191: /* Begin drawing and move to the starting position. */
192: screen_write_start(&ctx, NULL, &c->status);
193: if (llen != 0) {
194: screen_write_cursormove(&ctx, 0, yy);
1.31 ! nicm 195: screen_write_cnputs(&ctx, llen, &sl_stdgc, utf8flag, "%s", left);
1.5 nicm 196: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 197: if (larrow)
198: screen_write_putc(&ctx, &stdgc, ' ');
199: } else {
200: if (larrow)
201: screen_write_cursormove(&ctx, 1, yy);
202: else
203: screen_write_cursormove(&ctx, 0, yy);
1.15 nicm 204: }
205:
206: ox = 0;
207: if (width < xx) {
208: switch (options_get_number(&s->options, "status-justify")) {
209: case 1: /* centered */
210: ox = 1 + (xx - width) / 2;
211: break;
212: case 2: /* right */
213: ox = 1 + (xx - width);
214: break;
215: }
216: xx -= ox;
217: while (ox-- > 0)
218: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 219: }
220:
221: /* Draw each character in succession. */
222: offset = 0;
223: RB_FOREACH(wl, winlinks, &s->windows) {
224: memcpy(&gc, &stdgc, sizeof gc);
225: text = status_print(s, wl, &gc);
226:
227: if (larrow == 1 && offset < start) {
228: if (session_alert_has(s, wl, WINDOW_ACTIVITY))
229: larrow = -1;
230: else if (session_alert_has(s, wl, WINDOW_BELL))
231: larrow = -1;
232: else if (session_alert_has(s, wl, WINDOW_CONTENT))
233: larrow = -1;
234: }
235:
236: for (ptr = text; *ptr != '\0'; ptr++) {
237: if (offset >= start && offset < start + width)
238: screen_write_putc(&ctx, &gc, *ptr);
239: offset++;
240: }
241:
242: if (rarrow == 1 && offset > start + width) {
243: if (session_alert_has(s, wl, WINDOW_ACTIVITY))
244: rarrow = -1;
245: else if (session_alert_has(s, wl, WINDOW_BELL))
246: rarrow = -1;
247: else if (session_alert_has(s, wl, WINDOW_CONTENT))
248: rarrow = -1;
249: }
250:
251: if (offset < start + width) {
252: if (offset >= start) {
253: screen_write_putc(&ctx, &stdgc, ' ');
254: }
255: offset++;
256: }
257:
258: xfree(text);
259: }
260:
261: /* Fill the remaining space if any. */
262: while (offset++ < xx)
263: screen_write_putc(&ctx, &stdgc, ' ');
264:
265: /* Draw the last item. */
266: if (rlen != 0) {
267: screen_write_cursormove(&ctx, c->tty.sx - rlen - 1, yy);
1.5 nicm 268: screen_write_putc(&ctx, &stdgc, ' ');
1.31 ! nicm 269: screen_write_cnputs(&ctx, rlen, &sr_stdgc, utf8flag, "%s", right);
1.1 nicm 270: }
271:
272: /* Draw the arrows. */
273: if (larrow != 0) {
274: memcpy(&gc, &stdgc, sizeof gc);
275: if (larrow == -1)
276: gc.attr ^= GRID_ATTR_REVERSE;
277: if (llen != 0)
278: screen_write_cursormove(&ctx, llen + 1, yy);
279: else
280: screen_write_cursormove(&ctx, 0, yy);
281: screen_write_putc(&ctx, &gc, '<');
282: }
283: if (rarrow != 0) {
284: memcpy(&gc, &stdgc, sizeof gc);
285: if (rarrow == -1)
286: gc.attr ^= GRID_ATTR_REVERSE;
287: if (rlen != 0)
288: screen_write_cursormove(&ctx, c->tty.sx - rlen - 2, yy);
289: else
290: screen_write_cursormove(&ctx, c->tty.sx - 1, yy);
291: screen_write_putc(&ctx, &gc, '>');
292: }
293:
294: goto out;
295:
296: blank:
297: /* Just draw the whole line as blank. */
298: screen_write_start(&ctx, NULL, &c->status);
299: screen_write_cursormove(&ctx, 0, yy);
300: for (offset = 0; offset < c->tty.sx; offset++)
301: screen_write_putc(&ctx, &stdgc, ' ');
302:
303: out:
304: screen_write_stop(&ctx);
305:
306: if (left != NULL)
307: xfree(left);
308: if (right != NULL)
309: xfree(right);
310:
311: if (grid_compare(c->status.grid, old_status.grid) == 0) {
312: screen_free(&old_status);
313: return (0);
314: }
315: screen_free(&old_status);
316: return (1);
317: }
318:
319: char *
1.13 nicm 320: status_replace(struct session *s, const char *fmt, time_t t)
1.1 nicm 321: {
322: struct winlink *wl = s->curw;
323: static char out[BUFSIZ];
324: char in[BUFSIZ], tmp[256], ch, *iptr, *optr, *ptr, *endptr;
325: char *savedptr;
326: size_t len;
327: long n;
328:
329: strftime(in, sizeof in, fmt, localtime(&t));
330: in[(sizeof in) - 1] = '\0';
331:
332: iptr = in;
333: optr = out;
334: savedptr = NULL;
335:
336: while (*iptr != '\0') {
337: if (optr >= out + (sizeof out) - 1)
338: break;
339: switch (ch = *iptr++) {
340: case '#':
341: errno = 0;
342: n = strtol(iptr, &endptr, 10);
343: if ((n == 0 && errno != EINVAL) ||
344: (n == LONG_MIN && errno != ERANGE) ||
345: (n == LONG_MAX && errno != ERANGE) ||
346: n != 0)
347: iptr = endptr;
348: if (n <= 0)
349: n = LONG_MAX;
350:
351: ptr = NULL;
352: switch (*iptr++) {
353: case '(':
354: if (ptr == NULL) {
355: ptr = status_replace_popen(&iptr);
356: if (ptr == NULL)
357: break;
358: savedptr = ptr;
359: }
360: /* FALLTHROUGH */
361: case 'H':
362: if (ptr == NULL) {
363: if (gethostname(tmp, sizeof tmp) != 0)
364: fatal("gethostname");
365: ptr = tmp;
366: }
367: /* FALLTHROUGH */
1.13 nicm 368: case 'I':
369: if (ptr == NULL) {
370: xsnprintf(tmp, sizeof tmp, "%d", wl->idx);
371: ptr = tmp;
372: }
373: /* FALLTHROUGH */
374: case 'P':
375: if (ptr == NULL) {
376: xsnprintf(tmp, sizeof tmp, "%u",
377: window_pane_index(wl->window,
378: wl->window->active));
379: ptr = tmp;
380: }
1.16 nicm 381: /* FALLTHROUGH */
1.1 nicm 382: case 'S':
383: if (ptr == NULL)
384: ptr = s->name;
385: /* FALLTHROUGH */
386: case 'T':
387: if (ptr == NULL)
388: ptr = wl->window->active->base.title;
1.13 nicm 389: /* FALLTHROUGH */
390: case 'W':
391: if (ptr == NULL)
392: ptr = wl->window->name;
1.1 nicm 393: len = strlen(ptr);
394: if ((size_t) n < len)
395: len = n;
396: if (optr + len >= out + (sizeof out) - 1)
397: break;
398: while (len > 0 && *ptr != '\0') {
399: *optr++ = *ptr++;
400: len--;
1.31 ! nicm 401: }
! 402: break;
! 403: case '[':
! 404: /*
! 405: * Embedded style, handled at display time.
! 406: * Leave present and skip input until ].
! 407: */
! 408: *optr++ = '#';
! 409:
! 410: iptr--; /* include [ */
! 411: while (*iptr != ']' && *iptr != '\0') {
! 412: if (optr >= out + (sizeof out) - 1)
! 413: break;
! 414: *optr++ = *iptr++;
1.1 nicm 415: }
416: break;
417: case '#':
418: *optr++ = '#';
419: break;
420: }
421: if (savedptr != NULL) {
422: xfree(savedptr);
423: savedptr = NULL;
424: }
425: break;
426: default:
427: *optr++ = ch;
428: break;
429: }
430: }
431: *optr = '\0';
432:
433: return (xstrdup(out));
434: }
435:
436: char *
437: status_replace_popen(char **iptr)
438: {
439: FILE *f;
440: char *buf, *cmd, *ptr;
441: int lastesc;
442: size_t len;
443:
444: if (**iptr == '\0')
445: return (NULL);
446: if (**iptr == ')') { /* no command given */
447: (*iptr)++;
448: return (NULL);
449: }
450:
451: buf = NULL;
452:
453: cmd = xmalloc(strlen(*iptr) + 1);
454: len = 0;
455:
456: lastesc = 0;
457: for (; **iptr != '\0'; (*iptr)++) {
458: if (!lastesc && **iptr == ')')
459: break; /* unescaped ) is the end */
460: if (!lastesc && **iptr == '\\') {
461: lastesc = 1;
462: continue; /* skip \ if not escaped */
463: }
464: lastesc = 0;
465: cmd[len++] = **iptr;
466: }
467: if (**iptr == '\0') /* no terminating ) */
468: goto out;
469: (*iptr)++; /* skip final ) */
470: cmd[len] = '\0';
471:
472: if ((f = popen(cmd, "r")) == NULL)
473: goto out;
474:
475: if ((buf = fgetln(f, &len)) == NULL) {
476: pclose(f);
477: goto out;
478: }
479: if (buf[len - 1] == '\n') {
480: buf[len - 1] = '\0';
481: buf = xstrdup(buf);
482: } else {
483: ptr = xmalloc(len + 1);
484: memcpy(ptr, buf, len);
485: ptr[len] = '\0';
486: buf = ptr;
487: }
488: pclose(f);
489:
490: out:
491: xfree(cmd);
492: return (buf);
493: }
494:
495: size_t
496: status_width(struct winlink *wl)
497: {
498: return (xsnprintf(NULL, 0, "%d:%s ", wl->idx, wl->window->name));
499: }
500:
501: char *
502: status_print(struct session *s, struct winlink *wl, struct grid_cell *gc)
503: {
504: char *text, flag;
505: u_char fg, bg, attr;
506:
507: fg = options_get_number(&wl->window->options, "window-status-fg");
508: if (fg != 8)
509: gc->fg = fg;
510: bg = options_get_number(&wl->window->options, "window-status-bg");
511: if (bg != 8)
512: gc->bg = bg;
513: attr = options_get_number(&wl->window->options, "window-status-attr");
514: if (attr != 0)
515: gc->attr = attr;
516:
517: flag = ' ';
518: if (wl == SLIST_FIRST(&s->lastw))
519: flag = '-';
1.14 nicm 520: if (wl == s->curw) {
521: fg = options_get_number(&wl->window->options, "window-status-current-fg");
522: if (fg != 8)
523: gc->fg = fg;
524: bg = options_get_number(&wl->window->options, "window-status-current-bg");
525: if (bg != 8)
526: gc->bg = bg;
527: attr = options_get_number(&wl->window->options, "window-status-current-attr");
528: if (attr != 0)
529: gc->attr = attr;
1.1 nicm 530: flag = '*';
1.14 nicm 531: }
1.1 nicm 532:
533: if (session_alert_has(s, wl, WINDOW_ACTIVITY)) {
534: flag = '#';
535: gc->attr ^= GRID_ATTR_REVERSE;
536: } else if (session_alert_has(s, wl, WINDOW_BELL)) {
537: flag = '!';
538: gc->attr ^= GRID_ATTR_REVERSE;
539: } else if (session_alert_has(s, wl, WINDOW_CONTENT)) {
540: flag = '+';
541: gc->attr ^= GRID_ATTR_REVERSE;
542: }
543:
544: xasprintf(&text, "%d:%s%c", wl->idx, wl->window->name, flag);
545: return (text);
546: }
547:
1.10 nicm 548: void printflike2
549: status_message_set(struct client *c, const char *fmt, ...)
1.1 nicm 550: {
551: struct timeval tv;
1.10 nicm 552: va_list ap;
1.1 nicm 553: int delay;
554:
1.12 nicm 555: status_prompt_clear(c);
556: status_message_clear(c);
557:
1.28 nicm 558: va_start(ap, fmt);
559: xvasprintf(&c->message_string, fmt, ap);
560: va_end(ap);
561:
1.1 nicm 562: delay = options_get_number(&c->session->options, "display-time");
563: tv.tv_sec = delay / 1000;
564: tv.tv_usec = (delay % 1000) * 1000L;
565:
566: if (gettimeofday(&c->message_timer, NULL) != 0)
567: fatal("gettimeofday");
568: timeradd(&c->message_timer, &tv, &c->message_timer);
569:
570: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
571: c->flags |= CLIENT_STATUS;
572: }
573:
574: void
575: status_message_clear(struct client *c)
576: {
577: if (c->message_string == NULL)
578: return;
579:
580: xfree(c->message_string);
581: c->message_string = NULL;
582:
583: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 584: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 585:
586: screen_reinit(&c->status);
1.1 nicm 587: }
588:
589: /* Draw client message on status line of present else on last line. */
590: int
591: status_message_redraw(struct client *c)
592: {
593: struct screen_write_ctx ctx;
594: struct session *s = c->session;
595: struct screen old_status;
596: size_t len;
597: struct grid_cell gc;
598:
599: if (c->tty.sx == 0 || c->tty.sy == 0)
600: return (0);
601: memcpy(&old_status, &c->status, sizeof old_status);
602: screen_init(&c->status, c->tty.sx, 1, 0);
603:
604: len = strlen(c->message_string);
605: if (len > c->tty.sx)
606: len = c->tty.sx;
607:
608: memcpy(&gc, &grid_default_cell, sizeof gc);
1.23 nicm 609: gc.fg = options_get_number(&s->options, "message-fg");
610: gc.bg = options_get_number(&s->options, "message-bg");
1.1 nicm 611: gc.attr |= options_get_number(&s->options, "message-attr");
612:
613: screen_write_start(&ctx, NULL, &c->status);
614:
615: screen_write_cursormove(&ctx, 0, 0);
616: screen_write_puts(&ctx, &gc, "%.*s", (int) len, c->message_string);
617: for (; len < c->tty.sx; len++)
618: screen_write_putc(&ctx, &gc, ' ');
619:
620: screen_write_stop(&ctx);
621:
622: if (grid_compare(c->status.grid, old_status.grid) == 0) {
623: screen_free(&old_status);
624: return (0);
625: }
626: screen_free(&old_status);
627: return (1);
628: }
629:
630: void
1.12 nicm 631: status_prompt_set(struct client *c, const char *msg,
632: int (*callbackfn)(void *, const char *), void (*freefn)(void *),
633: void *data, int flags)
1.1 nicm 634: {
1.20 nicm 635: int keys;
636:
1.12 nicm 637: status_message_clear(c);
638: status_prompt_clear(c);
639:
1.1 nicm 640: c->prompt_string = xstrdup(msg);
641:
642: c->prompt_buffer = xstrdup("");
643: c->prompt_index = 0;
644:
1.12 nicm 645: c->prompt_callbackfn = callbackfn;
646: c->prompt_freefn = freefn;
1.1 nicm 647: c->prompt_data = data;
648:
649: c->prompt_hindex = 0;
650:
651: c->prompt_flags = flags;
652:
1.20 nicm 653: keys = options_get_number(&c->session->options, "status-keys");
654: if (keys == MODEKEY_EMACS)
1.21 nicm 655: mode_key_init(&c->prompt_mdata, &mode_key_tree_emacs_edit);
1.20 nicm 656: else
1.21 nicm 657: mode_key_init(&c->prompt_mdata, &mode_key_tree_vi_edit);
1.1 nicm 658:
659: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
660: c->flags |= CLIENT_STATUS;
661: }
662:
663: void
664: status_prompt_clear(struct client *c)
665: {
1.12 nicm 666: if (c->prompt_string == NULL)
1.1 nicm 667: return;
668:
1.12 nicm 669: if (c->prompt_freefn != NULL && c->prompt_data != NULL)
670: c->prompt_freefn(c->prompt_data);
1.1 nicm 671:
672: xfree(c->prompt_string);
673: c->prompt_string = NULL;
674:
1.4 nicm 675: if (c->prompt_flags & PROMPT_HIDDEN)
676: memset(c->prompt_buffer, 0, strlen(c->prompt_buffer));
1.1 nicm 677: xfree(c->prompt_buffer);
678: c->prompt_buffer = NULL;
679:
680: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 681: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 682:
683: screen_reinit(&c->status);
1.27 nicm 684: }
685:
686: void
687: status_prompt_update(struct client *c, const char *msg)
688: {
689: xfree(c->prompt_string);
690: c->prompt_string = xstrdup(msg);
691:
692: *c->prompt_buffer = '\0';
693: c->prompt_index = 0;
694:
695: c->prompt_hindex = 0;
696:
697: c->flags |= CLIENT_STATUS;
1.1 nicm 698: }
699:
700: /* Draw client prompt on status line of present else on last line. */
701: int
702: status_prompt_redraw(struct client *c)
703: {
704: struct screen_write_ctx ctx;
705: struct session *s = c->session;
706: struct screen old_status;
1.29 nicm 707: size_t i, size, left, len, off;
1.1 nicm 708: char ch;
709: struct grid_cell gc;
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);
1.17 nicm 715: off = 0;
1.1 nicm 716:
717: len = strlen(c->prompt_string);
718: if (len > c->tty.sx)
719: len = c->tty.sx;
720:
721: memcpy(&gc, &grid_default_cell, sizeof gc);
1.23 nicm 722: gc.fg = options_get_number(&s->options, "message-fg");
723: gc.bg = 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);
729: screen_write_puts(&ctx, &gc, "%.*s", (int) len, c->prompt_string);
730:
731: left = c->tty.sx - len;
732: if (left != 0) {
733: if (c->prompt_index < left)
734: size = strlen(c->prompt_buffer);
735: else {
1.17 nicm 736: off = c->prompt_index - left + 1;
1.1 nicm 737: if (c->prompt_index == strlen(c->prompt_buffer))
738: left--;
739: size = left;
740: }
1.29 nicm 741: if (c->prompt_flags & PROMPT_HIDDEN)
742: size = 0;
743: else {
1.1 nicm 744: screen_write_puts(&ctx, &gc,
1.17 nicm 745: "%.*s", (int) left, c->prompt_buffer + off);
1.1 nicm 746: }
747:
748: for (i = len + size; i < c->tty.sx; i++)
749: screen_write_putc(&ctx, &gc, ' ');
750:
1.17 nicm 751: /* Draw a fake cursor. */
1.29 nicm 752: ch = ' ';
753: if (c->prompt_flags & PROMPT_HIDDEN)
754: screen_write_cursormove(&ctx, len, 0);
1.17 nicm 755: else {
1.29 nicm 756: screen_write_cursormove(&ctx,
757: len + c->prompt_index - off, 0);
758: if (c->prompt_index < strlen(c->prompt_buffer))
1.17 nicm 759: ch = c->prompt_buffer[c->prompt_index];
760: }
761: gc.attr ^= GRID_ATTR_REVERSE;
762: screen_write_putc(&ctx, &gc, ch);
1.1 nicm 763: }
764:
765: screen_write_stop(&ctx);
766:
767: if (grid_compare(c->status.grid, old_status.grid) == 0) {
768: screen_free(&old_status);
769: return (0);
770: }
771: screen_free(&old_status);
772: return (1);
773: }
774:
775: /* Handle keys in prompt. */
776: void
777: status_prompt_key(struct client *c, int key)
778: {
779: struct paste_buffer *pb;
1.30 nicm 780: char *s, *first, *last, word[64], swapc;
1.1 nicm 781: size_t size, n, off, idx;
782:
783: size = strlen(c->prompt_buffer);
784: switch (mode_key_lookup(&c->prompt_mdata, key)) {
1.20 nicm 785: case MODEKEYEDIT_CURSORLEFT:
1.1 nicm 786: if (c->prompt_index > 0) {
787: c->prompt_index--;
788: c->flags |= CLIENT_STATUS;
789: }
790: break;
1.20 nicm 791: case MODEKEYEDIT_SWITCHMODEAPPEND:
792: case MODEKEYEDIT_CURSORRIGHT:
1.1 nicm 793: if (c->prompt_index < size) {
794: c->prompt_index++;
795: c->flags |= CLIENT_STATUS;
796: }
797: break;
1.20 nicm 798: case MODEKEYEDIT_STARTOFLINE:
1.1 nicm 799: if (c->prompt_index != 0) {
800: c->prompt_index = 0;
801: c->flags |= CLIENT_STATUS;
802: }
803: break;
1.20 nicm 804: case MODEKEYEDIT_ENDOFLINE:
1.1 nicm 805: if (c->prompt_index != size) {
806: c->prompt_index = size;
807: c->flags |= CLIENT_STATUS;
808: }
809: break;
1.20 nicm 810: case MODEKEYEDIT_COMPLETE:
1.1 nicm 811: if (*c->prompt_buffer == '\0')
812: break;
813:
814: idx = c->prompt_index;
815: if (idx != 0)
816: idx--;
817:
818: /* Find the word we are in. */
819: first = c->prompt_buffer + idx;
820: while (first > c->prompt_buffer && *first != ' ')
821: first--;
822: while (*first == ' ')
823: first++;
824: last = c->prompt_buffer + idx;
825: while (*last != '\0' && *last != ' ')
826: last++;
827: while (*last == ' ')
828: last--;
829: if (*last != '\0')
830: last++;
831: if (last <= first ||
832: ((size_t) (last - first)) > (sizeof word) - 1)
833: break;
834: memcpy(word, first, last - first);
835: word[last - first] = '\0';
836:
837: /* And try to complete it. */
838: if ((s = status_prompt_complete(word)) == NULL)
839: break;
840:
841: /* Trim out word. */
842: n = size - (last - c->prompt_buffer) + 1; /* with \0 */
843: memmove(first, last, n);
844: size -= last - first;
845:
846: /* Insert the new word. */
847: size += strlen(s);
848: off = first - c->prompt_buffer;
849: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 1);
850: first = c->prompt_buffer + off;
851: memmove(first + strlen(s), first, n);
852: memcpy(first, s, strlen(s));
853:
854: c->prompt_index = (first - c->prompt_buffer) + strlen(s);
1.22 nicm 855: xfree(s);
1.1 nicm 856:
857: c->flags |= CLIENT_STATUS;
858: break;
1.20 nicm 859: case MODEKEYEDIT_BACKSPACE:
1.1 nicm 860: if (c->prompt_index != 0) {
861: if (c->prompt_index == size)
862: c->prompt_buffer[--c->prompt_index] = '\0';
863: else {
864: memmove(c->prompt_buffer + c->prompt_index - 1,
865: c->prompt_buffer + c->prompt_index,
866: size + 1 - c->prompt_index);
867: c->prompt_index--;
868: }
869: c->flags |= CLIENT_STATUS;
870: }
871: break;
1.20 nicm 872: case MODEKEYEDIT_DELETE:
1.1 nicm 873: if (c->prompt_index != size) {
874: memmove(c->prompt_buffer + c->prompt_index,
875: c->prompt_buffer + c->prompt_index + 1,
876: size + 1 - c->prompt_index);
1.18 nicm 877: c->flags |= CLIENT_STATUS;
878: }
1.26 nicm 879: break;
880: case MODEKEYEDIT_DELETELINE:
881: *c->prompt_buffer = '\0';
882: c->prompt_index = 0;
883: c->flags |= CLIENT_STATUS;
1.18 nicm 884: break;
1.20 nicm 885: case MODEKEYEDIT_DELETETOENDOFLINE:
1.18 nicm 886: if (c->prompt_index < size) {
887: c->prompt_buffer[c->prompt_index] = '\0';
1.1 nicm 888: c->flags |= CLIENT_STATUS;
889: }
890: break;
1.20 nicm 891: case MODEKEYEDIT_HISTORYUP:
1.1 nicm 892: if (server_locked)
893: break;
894:
895: if (ARRAY_LENGTH(&c->prompt_hdata) == 0)
896: break;
1.4 nicm 897: if (c->prompt_flags & PROMPT_HIDDEN)
898: memset(c->prompt_buffer, 0, strlen(c->prompt_buffer));
1.1 nicm 899: xfree(c->prompt_buffer);
900:
901: c->prompt_buffer = xstrdup(ARRAY_ITEM(&c->prompt_hdata,
902: ARRAY_LENGTH(&c->prompt_hdata) - 1 - c->prompt_hindex));
903: if (c->prompt_hindex != ARRAY_LENGTH(&c->prompt_hdata) - 1)
904: c->prompt_hindex++;
905:
906: c->prompt_index = strlen(c->prompt_buffer);
907: c->flags |= CLIENT_STATUS;
908: break;
1.20 nicm 909: case MODEKEYEDIT_HISTORYDOWN:
1.1 nicm 910: if (server_locked)
911: break;
912:
1.4 nicm 913: if (c->prompt_flags & PROMPT_HIDDEN)
914: memset(c->prompt_buffer, 0, strlen(c->prompt_buffer));
1.1 nicm 915: xfree(c->prompt_buffer);
916:
917: if (c->prompt_hindex != 0) {
918: c->prompt_hindex--;
919: c->prompt_buffer = xstrdup(ARRAY_ITEM(
920: &c->prompt_hdata, ARRAY_LENGTH(
921: &c->prompt_hdata) - 1 - c->prompt_hindex));
922: } else
923: c->prompt_buffer = xstrdup("");
924:
925: c->prompt_index = strlen(c->prompt_buffer);
926: c->flags |= CLIENT_STATUS;
927: break;
1.20 nicm 928: case MODEKEYEDIT_PASTE:
1.1 nicm 929: if ((pb = paste_get_top(&c->session->buffers)) == NULL)
930: break;
931: if ((last = strchr(pb->data, '\n')) == NULL)
932: last = strchr(pb->data, '\0');
933: n = last - pb->data;
934:
935: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + n + 1);
936: if (c->prompt_index == size) {
937: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
938: c->prompt_index += n;
939: c->prompt_buffer[c->prompt_index] = '\0';
940: } else {
941: memmove(c->prompt_buffer + c->prompt_index + n,
942: c->prompt_buffer + c->prompt_index,
943: size + 1 - c->prompt_index);
944: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
945: c->prompt_index += n;
946: }
947:
948: c->flags |= CLIENT_STATUS;
1.30 nicm 949: break;
950: case MODEKEYEDIT_TRANSPOSECHARS:
951: idx = c->prompt_index;
952: if (idx < size)
953: idx++;
954: if (idx >= 2) {
955: swapc = c->prompt_buffer[idx - 2];
956: c->prompt_buffer[idx - 2] = c->prompt_buffer[idx - 1];
957: c->prompt_buffer[idx - 1] = swapc;
958: c->prompt_index = idx;
959: c->flags |= CLIENT_STATUS;
960: }
1.1 nicm 961: break;
1.20 nicm 962: case MODEKEYEDIT_ENTER:
1.25 nicm 963: if (*c->prompt_buffer != '\0')
1.1 nicm 964: status_prompt_add_history(c);
1.25 nicm 965: if (c->prompt_callbackfn(c->prompt_data, c->prompt_buffer) == 0)
966: status_prompt_clear(c);
967: break;
1.20 nicm 968: case MODEKEYEDIT_CANCEL:
1.12 nicm 969: if (c->prompt_callbackfn(c->prompt_data, NULL) == 0)
1.1 nicm 970: status_prompt_clear(c);
971: break;
1.20 nicm 972: case MODEKEY_OTHER:
1.1 nicm 973: if (key < 32 || key > 126)
974: break;
975: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 2);
976:
977: if (c->prompt_index == size) {
978: c->prompt_buffer[c->prompt_index++] = key;
979: c->prompt_buffer[c->prompt_index] = '\0';
980: } else {
981: memmove(c->prompt_buffer + c->prompt_index + 1,
982: c->prompt_buffer + c->prompt_index,
983: size + 1 - c->prompt_index);
984: c->prompt_buffer[c->prompt_index++] = key;
985: }
986:
987: if (c->prompt_flags & PROMPT_SINGLE) {
1.12 nicm 988: if (c->prompt_callbackfn(
1.1 nicm 989: c->prompt_data, c->prompt_buffer) == 0)
990: status_prompt_clear(c);
991: }
992:
993: c->flags |= CLIENT_STATUS;
994: break;
995: default:
996: break;
997: }
998: }
999:
1000: /* Add line to the history. */
1001: void
1002: status_prompt_add_history(struct client *c)
1003: {
1004: if (server_locked)
1005: return;
1006:
1007: if (ARRAY_LENGTH(&c->prompt_hdata) > 0 &&
1008: strcmp(ARRAY_LAST(&c->prompt_hdata), c->prompt_buffer) == 0)
1009: return;
1010:
1011: if (ARRAY_LENGTH(&c->prompt_hdata) == PROMPT_HISTORY) {
1012: xfree(ARRAY_FIRST(&c->prompt_hdata));
1013: ARRAY_REMOVE(&c->prompt_hdata, 0);
1014: }
1015:
1016: ARRAY_ADD(&c->prompt_hdata, xstrdup(c->prompt_buffer));
1017: }
1018:
1019: /* Complete word. */
1020: char *
1021: status_prompt_complete(const char *s)
1022: {
1023: const struct cmd_entry **cmdent;
1024: const struct set_option_entry *optent;
1025: ARRAY_DECL(, const char *) list;
1026: char *prefix, *s2;
1.9 nicm 1027: u_int i;
1.1 nicm 1028: size_t j;
1029:
1030: if (*s == '\0')
1031: return (NULL);
1032:
1033: /* First, build a list of all the possible matches. */
1034: ARRAY_INIT(&list);
1035: for (cmdent = cmd_table; *cmdent != NULL; cmdent++) {
1036: if (strncmp((*cmdent)->name, s, strlen(s)) == 0)
1037: ARRAY_ADD(&list, (*cmdent)->name);
1038: }
1.9 nicm 1039: for (optent = set_option_table; optent->name != NULL; optent++) {
1.1 nicm 1040: if (strncmp(optent->name, s, strlen(s)) == 0)
1041: ARRAY_ADD(&list, optent->name);
1042: }
1.9 nicm 1043: for (optent = set_window_option_table; optent->name != NULL; optent++) {
1.1 nicm 1044: if (strncmp(optent->name, s, strlen(s)) == 0)
1045: ARRAY_ADD(&list, optent->name);
1046: }
1047:
1048: /* If none, bail now. */
1049: if (ARRAY_LENGTH(&list) == 0) {
1050: ARRAY_FREE(&list);
1051: return (NULL);
1052: }
1053:
1054: /* If an exact match, return it, with a trailing space. */
1055: if (ARRAY_LENGTH(&list) == 1) {
1056: xasprintf(&s2, "%s ", ARRAY_FIRST(&list));
1057: ARRAY_FREE(&list);
1058: return (s2);
1059: }
1060:
1061: /* Now loop through the list and find the longest common prefix. */
1062: prefix = xstrdup(ARRAY_FIRST(&list));
1063: for (i = 1; i < ARRAY_LENGTH(&list); i++) {
1064: s = ARRAY_ITEM(&list, i);
1065:
1066: j = strlen(s);
1067: if (j > strlen(prefix))
1068: j = strlen(prefix);
1069: for (; j > 0; j--) {
1070: if (prefix[j - 1] != s[j - 1])
1071: prefix[j - 1] = '\0';
1072: }
1073: }
1074:
1075: ARRAY_FREE(&list);
1076: return (prefix);
1077: }