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1.13 ! nicm 1: /* $OpenBSD: status.c,v 1.12 2009/07/17 06:13:27 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;
1.7 nicm 49: size_t xx, yy, size, start, width;
1.1 nicm 50: struct grid_cell stdgc, gc;
1.3 nicm 51: int larrow, rarrow, utf8flag;
1.1 nicm 52:
53: left = right = NULL;
54:
1.7 nicm 55: /* No status line?*/
56: if (c->tty.sy == 0 || !options_get_number(&s->options, "status"))
57: return (1);
58: larrow = rarrow = 0;
1.1 nicm 59:
1.7 nicm 60: /* Create the target screen. */
61: memcpy(&old_status, &c->status, sizeof old_status);
62: screen_init(&c->status, c->tty.sx, 1, 0);
1.1 nicm 63:
64: if (gettimeofday(&c->status_timer, NULL) != 0)
65: fatal("gettimeofday");
66: memcpy(&stdgc, &grid_default_cell, sizeof gc);
67: stdgc.bg = options_get_number(&s->options, "status-fg");
68: stdgc.fg = options_get_number(&s->options, "status-bg");
69: stdgc.attr |= options_get_number(&s->options, "status-attr");
70:
71: yy = c->tty.sy - 1;
72: if (yy == 0)
73: goto blank;
74:
1.3 nicm 75: /* Caring about UTF-8 in status line? */
76: utf8flag = options_get_number(&s->options, "status-utf8");
77:
1.1 nicm 78: /* Work out the left and right strings. */
79: left = status_replace(s, options_get_string(
80: &s->options, "status-left"), c->status_timer.tv_sec);
81: llen = options_get_number(&s->options, "status-left-length");
1.3 nicm 82: llen2 = screen_write_strlen(utf8flag, "%s", left);
1.2 nicm 83: if (llen2 < llen)
84: llen = llen2;
1.1 nicm 85:
86: right = status_replace(s, options_get_string(
87: &s->options, "status-right"), c->status_timer.tv_sec);
88: rlen = options_get_number(&s->options, "status-right-length");
1.3 nicm 89: rlen2 = screen_write_strlen(utf8flag, "%s", right);
1.2 nicm 90: if (rlen2 < rlen)
91: rlen = rlen2;
1.1 nicm 92:
93: /*
94: * Figure out how much space we have for the window list. If there isn't
95: * enough space, just wimp out.
96: */
97: xx = 0;
98: if (llen != 0)
99: xx += llen + 1;
100: if (rlen != 0)
101: xx += rlen + 1;
102: if (c->tty.sx == 0 || c->tty.sx <= xx)
103: goto blank;
104: xx = c->tty.sx - xx;
105:
106: /*
107: * Right. We have xx characters to fill. Find out how much is to go in
108: * them and the offset of the current window (it must be on screen).
109: */
110: width = offset = 0;
111: RB_FOREACH(wl, winlinks, &s->windows) {
112: size = status_width(wl) + 1;
113: if (wl == s->curw)
114: offset = width;
115: width += size;
116: }
117: start = 0;
118:
119: /* If there is enough space for the total width, all is gravy. */
120: if (width <= xx)
121: goto draw;
122:
123: /* Find size of current window text. */
124: size = status_width(s->curw);
125:
126: /*
127: * If the offset is already on screen, we're good to draw from the
128: * start and just leave off the end.
129: */
130: if (offset + size < xx) {
131: if (xx > 0) {
132: rarrow = 1;
133: xx--;
134: }
135:
136: width = xx;
137: goto draw;
138: }
139:
140: /*
141: * Work out how many characters we need to omit from the start. There
142: * are xx characters to fill, and offset + size must be the last. So,
143: * the start character is offset + size - xx.
144: */
145: if (xx > 0) {
146: larrow = 1;
147: xx--;
148: }
149:
150: start = offset + size - xx;
151: if (xx > 0 && width > start + xx + 1) { /* + 1, eh? */
152: rarrow = 1;
153: start++;
154: xx--;
155: }
156: width = xx;
157:
158: draw:
159: /* Bail here if anything is too small too. XXX. */
160: if (width == 0 || xx == 0)
161: goto blank;
162:
163: /* Begin drawing and move to the starting position. */
164: screen_write_start(&ctx, NULL, &c->status);
165: if (llen != 0) {
166: screen_write_cursormove(&ctx, 0, yy);
1.5 nicm 167: screen_write_nputs(&ctx, llen, &stdgc, utf8flag, "%s", left);
168: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 169: if (larrow)
170: screen_write_putc(&ctx, &stdgc, ' ');
171: } else {
172: if (larrow)
173: screen_write_cursormove(&ctx, 1, yy);
174: else
175: screen_write_cursormove(&ctx, 0, yy);
176: }
177:
178: /* Draw each character in succession. */
179: offset = 0;
180: RB_FOREACH(wl, winlinks, &s->windows) {
181: memcpy(&gc, &stdgc, sizeof gc);
182: text = status_print(s, wl, &gc);
183:
184: if (larrow == 1 && offset < start) {
185: if (session_alert_has(s, wl, WINDOW_ACTIVITY))
186: larrow = -1;
187: else if (session_alert_has(s, wl, WINDOW_BELL))
188: larrow = -1;
189: else if (session_alert_has(s, wl, WINDOW_CONTENT))
190: larrow = -1;
191: }
192:
193: for (ptr = text; *ptr != '\0'; ptr++) {
194: if (offset >= start && offset < start + width)
195: screen_write_putc(&ctx, &gc, *ptr);
196: offset++;
197: }
198:
199: if (rarrow == 1 && offset > start + width) {
200: if (session_alert_has(s, wl, WINDOW_ACTIVITY))
201: rarrow = -1;
202: else if (session_alert_has(s, wl, WINDOW_BELL))
203: rarrow = -1;
204: else if (session_alert_has(s, wl, WINDOW_CONTENT))
205: rarrow = -1;
206: }
207:
208: if (offset < start + width) {
209: if (offset >= start) {
210: screen_write_putc(&ctx, &stdgc, ' ');
211: }
212: offset++;
213: }
214:
215: xfree(text);
216: }
217:
218: /* Fill the remaining space if any. */
219: while (offset++ < xx)
220: screen_write_putc(&ctx, &stdgc, ' ');
221:
222: /* Draw the last item. */
223: if (rlen != 0) {
224: screen_write_cursormove(&ctx, c->tty.sx - rlen - 1, yy);
1.5 nicm 225: screen_write_putc(&ctx, &stdgc, ' ');
226: screen_write_nputs(&ctx, rlen, &stdgc, utf8flag, "%s", right);
1.1 nicm 227: }
228:
229: /* Draw the arrows. */
230: if (larrow != 0) {
231: memcpy(&gc, &stdgc, sizeof gc);
232: if (larrow == -1)
233: gc.attr ^= GRID_ATTR_REVERSE;
234: if (llen != 0)
235: screen_write_cursormove(&ctx, llen + 1, yy);
236: else
237: screen_write_cursormove(&ctx, 0, yy);
238: screen_write_putc(&ctx, &gc, '<');
239: }
240: if (rarrow != 0) {
241: memcpy(&gc, &stdgc, sizeof gc);
242: if (rarrow == -1)
243: gc.attr ^= GRID_ATTR_REVERSE;
244: if (rlen != 0)
245: screen_write_cursormove(&ctx, c->tty.sx - rlen - 2, yy);
246: else
247: screen_write_cursormove(&ctx, c->tty.sx - 1, yy);
248: screen_write_putc(&ctx, &gc, '>');
249: }
250:
251: goto out;
252:
253: blank:
254: /* Just draw the whole line as blank. */
255: screen_write_start(&ctx, NULL, &c->status);
256: screen_write_cursormove(&ctx, 0, yy);
257: for (offset = 0; offset < c->tty.sx; offset++)
258: screen_write_putc(&ctx, &stdgc, ' ');
259:
260: out:
261: screen_write_stop(&ctx);
262:
263: if (left != NULL)
264: xfree(left);
265: if (right != NULL)
266: xfree(right);
267:
268: if (grid_compare(c->status.grid, old_status.grid) == 0) {
269: screen_free(&old_status);
270: return (0);
271: }
272: screen_free(&old_status);
273: return (1);
274: }
275:
276: char *
1.13 ! nicm 277: status_replace(struct session *s, const char *fmt, time_t t)
1.1 nicm 278: {
279: struct winlink *wl = s->curw;
280: static char out[BUFSIZ];
281: char in[BUFSIZ], tmp[256], ch, *iptr, *optr, *ptr, *endptr;
282: char *savedptr;
283: size_t len;
284: long n;
285:
286: strftime(in, sizeof in, fmt, localtime(&t));
287: in[(sizeof in) - 1] = '\0';
288:
289: iptr = in;
290: optr = out;
291: savedptr = NULL;
292:
293: while (*iptr != '\0') {
294: if (optr >= out + (sizeof out) - 1)
295: break;
296: switch (ch = *iptr++) {
297: case '#':
298: errno = 0;
299: n = strtol(iptr, &endptr, 10);
300: if ((n == 0 && errno != EINVAL) ||
301: (n == LONG_MIN && errno != ERANGE) ||
302: (n == LONG_MAX && errno != ERANGE) ||
303: n != 0)
304: iptr = endptr;
305: if (n <= 0)
306: n = LONG_MAX;
307:
308: ptr = NULL;
309: switch (*iptr++) {
310: case '(':
311: if (ptr == NULL) {
312: ptr = status_replace_popen(&iptr);
313: if (ptr == NULL)
314: break;
315: savedptr = ptr;
316: }
317: /* FALLTHROUGH */
318: case 'H':
319: if (ptr == NULL) {
320: if (gethostname(tmp, sizeof tmp) != 0)
321: fatal("gethostname");
322: ptr = tmp;
323: }
324: /* FALLTHROUGH */
1.13 ! nicm 325: case 'I':
! 326: if (ptr == NULL) {
! 327: xsnprintf(tmp, sizeof tmp, "%d", wl->idx);
! 328: ptr = tmp;
! 329: }
! 330: /* FALLTHROUGH */
! 331: case 'P':
! 332: if (ptr == NULL) {
! 333: xsnprintf(tmp, sizeof tmp, "%u",
! 334: window_pane_index(wl->window,
! 335: wl->window->active));
! 336: ptr = tmp;
! 337: }
! 338: /* FALLTHOUGH */
1.1 nicm 339: case 'S':
340: if (ptr == NULL)
341: ptr = s->name;
342: /* FALLTHROUGH */
343: case 'T':
344: if (ptr == NULL)
345: ptr = wl->window->active->base.title;
1.13 ! nicm 346: /* FALLTHROUGH */
! 347: case 'W':
! 348: if (ptr == NULL)
! 349: ptr = wl->window->name;
1.1 nicm 350: len = strlen(ptr);
351: if ((size_t) n < len)
352: len = n;
353: if (optr + len >= out + (sizeof out) - 1)
354: break;
355: while (len > 0 && *ptr != '\0') {
356: *optr++ = *ptr++;
357: len--;
358: }
359: break;
360: case '#':
361: *optr++ = '#';
362: break;
363: }
364: if (savedptr != NULL) {
365: xfree(savedptr);
366: savedptr = NULL;
367: }
368: break;
369: default:
370: *optr++ = ch;
371: break;
372: }
373: }
374: *optr = '\0';
375:
376: return (xstrdup(out));
377: }
378:
379: char *
380: status_replace_popen(char **iptr)
381: {
382: FILE *f;
383: char *buf, *cmd, *ptr;
384: int lastesc;
385: size_t len;
386:
387: if (**iptr == '\0')
388: return (NULL);
389: if (**iptr == ')') { /* no command given */
390: (*iptr)++;
391: return (NULL);
392: }
393:
394: buf = NULL;
395:
396: cmd = xmalloc(strlen(*iptr) + 1);
397: len = 0;
398:
399: lastesc = 0;
400: for (; **iptr != '\0'; (*iptr)++) {
401: if (!lastesc && **iptr == ')')
402: break; /* unescaped ) is the end */
403: if (!lastesc && **iptr == '\\') {
404: lastesc = 1;
405: continue; /* skip \ if not escaped */
406: }
407: lastesc = 0;
408: cmd[len++] = **iptr;
409: }
410: if (**iptr == '\0') /* no terminating ) */
411: goto out;
412: (*iptr)++; /* skip final ) */
413: cmd[len] = '\0';
414:
415: if ((f = popen(cmd, "r")) == NULL)
416: goto out;
417:
418: if ((buf = fgetln(f, &len)) == NULL) {
419: pclose(f);
420: goto out;
421: }
422: if (buf[len - 1] == '\n') {
423: buf[len - 1] = '\0';
424: buf = xstrdup(buf);
425: } else {
426: ptr = xmalloc(len + 1);
427: memcpy(ptr, buf, len);
428: ptr[len] = '\0';
429: buf = ptr;
430: }
431: pclose(f);
432:
433: out:
434: xfree(cmd);
435: return (buf);
436: }
437:
438: size_t
439: status_width(struct winlink *wl)
440: {
441: return (xsnprintf(NULL, 0, "%d:%s ", wl->idx, wl->window->name));
442: }
443:
444: char *
445: status_print(struct session *s, struct winlink *wl, struct grid_cell *gc)
446: {
447: char *text, flag;
448: u_char fg, bg, attr;
449:
450: fg = options_get_number(&wl->window->options, "window-status-fg");
451: if (fg != 8)
452: gc->fg = fg;
453: bg = options_get_number(&wl->window->options, "window-status-bg");
454: if (bg != 8)
455: gc->bg = bg;
456: attr = options_get_number(&wl->window->options, "window-status-attr");
457: if (attr != 0)
458: gc->attr = attr;
459:
460: flag = ' ';
461: if (wl == SLIST_FIRST(&s->lastw))
462: flag = '-';
463: if (wl == s->curw)
464: flag = '*';
465:
466: if (session_alert_has(s, wl, WINDOW_ACTIVITY)) {
467: flag = '#';
468: gc->attr ^= GRID_ATTR_REVERSE;
469: } else if (session_alert_has(s, wl, WINDOW_BELL)) {
470: flag = '!';
471: gc->attr ^= GRID_ATTR_REVERSE;
472: } else if (session_alert_has(s, wl, WINDOW_CONTENT)) {
473: flag = '+';
474: gc->attr ^= GRID_ATTR_REVERSE;
475: }
476:
477: xasprintf(&text, "%d:%s%c", wl->idx, wl->window->name, flag);
478: return (text);
479: }
480:
1.10 nicm 481: void printflike2
482: status_message_set(struct client *c, const char *fmt, ...)
1.1 nicm 483: {
484: struct timeval tv;
1.10 nicm 485: va_list ap;
1.1 nicm 486: int delay;
487:
1.12 nicm 488: status_prompt_clear(c);
489: status_message_clear(c);
490:
1.1 nicm 491: delay = options_get_number(&c->session->options, "display-time");
492: tv.tv_sec = delay / 1000;
493: tv.tv_usec = (delay % 1000) * 1000L;
494:
1.10 nicm 495: va_start(ap, fmt);
496: xvasprintf(&c->message_string, fmt, ap);
497: va_end(ap);
1.1 nicm 498: if (gettimeofday(&c->message_timer, NULL) != 0)
499: fatal("gettimeofday");
500: timeradd(&c->message_timer, &tv, &c->message_timer);
501:
502: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
503: c->flags |= CLIENT_STATUS;
504: }
505:
506: void
507: status_message_clear(struct client *c)
508: {
509: if (c->message_string == NULL)
510: return;
511:
512: xfree(c->message_string);
513: c->message_string = NULL;
514:
515: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 516: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 517:
518: screen_reinit(&c->status);
1.1 nicm 519: }
520:
521: /* Draw client message on status line of present else on last line. */
522: int
523: status_message_redraw(struct client *c)
524: {
525: struct screen_write_ctx ctx;
526: struct session *s = c->session;
527: struct screen old_status;
528: size_t len;
529: struct grid_cell gc;
530:
531: if (c->tty.sx == 0 || c->tty.sy == 0)
532: return (0);
533: memcpy(&old_status, &c->status, sizeof old_status);
534: screen_init(&c->status, c->tty.sx, 1, 0);
535:
536: len = strlen(c->message_string);
537: if (len > c->tty.sx)
538: len = c->tty.sx;
539:
540: memcpy(&gc, &grid_default_cell, sizeof gc);
541: gc.bg = options_get_number(&s->options, "message-fg");
542: gc.fg = options_get_number(&s->options, "message-bg");
543: gc.attr |= options_get_number(&s->options, "message-attr");
544:
545: screen_write_start(&ctx, NULL, &c->status);
546:
547: screen_write_cursormove(&ctx, 0, 0);
548: screen_write_puts(&ctx, &gc, "%.*s", (int) len, c->message_string);
549: for (; len < c->tty.sx; len++)
550: screen_write_putc(&ctx, &gc, ' ');
551:
552: screen_write_stop(&ctx);
553:
554: if (grid_compare(c->status.grid, old_status.grid) == 0) {
555: screen_free(&old_status);
556: return (0);
557: }
558: screen_free(&old_status);
559: return (1);
560: }
561:
562: void
1.12 nicm 563: status_prompt_set(struct client *c, const char *msg,
564: int (*callbackfn)(void *, const char *), void (*freefn)(void *),
565: void *data, int flags)
1.1 nicm 566: {
1.12 nicm 567: status_message_clear(c);
568: status_prompt_clear(c);
569:
1.1 nicm 570: c->prompt_string = xstrdup(msg);
571:
572: c->prompt_buffer = xstrdup("");
573: c->prompt_index = 0;
574:
1.12 nicm 575: c->prompt_callbackfn = callbackfn;
576: c->prompt_freefn = freefn;
1.1 nicm 577: c->prompt_data = data;
578:
579: c->prompt_hindex = 0;
580:
581: c->prompt_flags = flags;
582:
583: mode_key_init(&c->prompt_mdata,
584: options_get_number(&c->session->options, "status-keys"),
585: MODEKEY_CANEDIT);
586:
587: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
588: c->flags |= CLIENT_STATUS;
589: }
590:
591: void
592: status_prompt_clear(struct client *c)
593: {
1.12 nicm 594: if (c->prompt_string == NULL)
1.1 nicm 595: return;
596:
1.12 nicm 597: if (c->prompt_freefn != NULL && c->prompt_data != NULL)
598: c->prompt_freefn(c->prompt_data);
599:
1.1 nicm 600: mode_key_free(&c->prompt_mdata);
601:
602: xfree(c->prompt_string);
603: c->prompt_string = NULL;
604:
1.4 nicm 605: if (c->prompt_flags & PROMPT_HIDDEN)
606: memset(c->prompt_buffer, 0, strlen(c->prompt_buffer));
1.1 nicm 607: xfree(c->prompt_buffer);
608: c->prompt_buffer = NULL;
609:
610: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 611: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 612:
613: screen_reinit(&c->status);
1.1 nicm 614: }
615:
616: /* Draw client prompt on status line of present else on last line. */
617: int
618: status_prompt_redraw(struct client *c)
619: {
620: struct screen_write_ctx ctx;
621: struct session *s = c->session;
622: struct screen old_status;
623: size_t i, size, left, len, offset, n;
624: char ch;
625: struct grid_cell gc;
626:
627: if (c->tty.sx == 0 || c->tty.sy == 0)
628: return (0);
629: memcpy(&old_status, &c->status, sizeof old_status);
630: screen_init(&c->status, c->tty.sx, 1, 0);
631: offset = 0;
632:
633: len = strlen(c->prompt_string);
634: if (len > c->tty.sx)
635: len = c->tty.sx;
636:
637: memcpy(&gc, &grid_default_cell, sizeof gc);
638: gc.bg = options_get_number(&s->options, "message-fg");
639: gc.fg = options_get_number(&s->options, "message-bg");
640: gc.attr |= options_get_number(&s->options, "message-attr");
641:
642: screen_write_start(&ctx, NULL, &c->status);
643:
644: screen_write_cursormove(&ctx, 0, 0);
645: screen_write_puts(&ctx, &gc, "%.*s", (int) len, c->prompt_string);
646:
647: left = c->tty.sx - len;
648: if (left != 0) {
649: if (c->prompt_index < left)
650: size = strlen(c->prompt_buffer);
651: else {
652: offset = c->prompt_index - left - 1;
653: if (c->prompt_index == strlen(c->prompt_buffer))
654: left--;
655: size = left;
656: }
657: if (c->prompt_flags & PROMPT_HIDDEN) {
658: n = strlen(c->prompt_buffer);
659: if (n > left)
660: n = left;
661: for (i = 0; i < n; i++)
662: screen_write_putc(&ctx, &gc, '*');
663: } else {
664: screen_write_puts(&ctx, &gc,
665: "%.*s", (int) left, c->prompt_buffer + offset);
666: }
667:
668: for (i = len + size; i < c->tty.sx; i++)
669: screen_write_putc(&ctx, &gc, ' ');
670: }
671:
672: /* Draw a fake cursor. */
673: screen_write_cursormove(&ctx, len + c->prompt_index - offset, 0);
674: if (c->prompt_index == strlen(c->prompt_buffer))
675: ch = ' ';
676: else {
677: if (c->prompt_flags & PROMPT_HIDDEN)
678: ch = '*';
679: else
680: ch = c->prompt_buffer[c->prompt_index];
681: }
682: if (ch == '\0')
683: ch = ' ';
684: gc.attr ^= GRID_ATTR_REVERSE;
685: screen_write_putc(&ctx, &gc, ch);
686:
687: screen_write_stop(&ctx);
688:
689: if (grid_compare(c->status.grid, old_status.grid) == 0) {
690: screen_free(&old_status);
691: return (0);
692: }
693: screen_free(&old_status);
694: return (1);
695: }
696:
697: /* Handle keys in prompt. */
698: void
699: status_prompt_key(struct client *c, int key)
700: {
701: struct paste_buffer *pb;
702: char *s, *first, *last, word[64];
703: size_t size, n, off, idx;
704:
705: size = strlen(c->prompt_buffer);
706: switch (mode_key_lookup(&c->prompt_mdata, key)) {
707: case MODEKEYCMD_LEFT:
708: if (c->prompt_index > 0) {
709: c->prompt_index--;
710: c->flags |= CLIENT_STATUS;
711: }
712: break;
713: case MODEKEYCMD_RIGHT:
714: if (c->prompt_index < size) {
715: c->prompt_index++;
716: c->flags |= CLIENT_STATUS;
717: }
718: break;
719: case MODEKEYCMD_STARTOFLINE:
1.6 nicm 720: case MODEKEYCMD_BACKTOINDENTATION:
1.1 nicm 721: if (c->prompt_index != 0) {
722: c->prompt_index = 0;
723: c->flags |= CLIENT_STATUS;
724: }
725: break;
726: case MODEKEYCMD_ENDOFLINE:
727: if (c->prompt_index != size) {
728: c->prompt_index = size;
729: c->flags |= CLIENT_STATUS;
730: }
731: break;
732: case MODEKEYCMD_COMPLETE:
733: if (*c->prompt_buffer == '\0')
734: break;
735:
736: idx = c->prompt_index;
737: if (idx != 0)
738: idx--;
739:
740: /* Find the word we are in. */
741: first = c->prompt_buffer + idx;
742: while (first > c->prompt_buffer && *first != ' ')
743: first--;
744: while (*first == ' ')
745: first++;
746: last = c->prompt_buffer + idx;
747: while (*last != '\0' && *last != ' ')
748: last++;
749: while (*last == ' ')
750: last--;
751: if (*last != '\0')
752: last++;
753: if (last <= first ||
754: ((size_t) (last - first)) > (sizeof word) - 1)
755: break;
756: memcpy(word, first, last - first);
757: word[last - first] = '\0';
758:
759: /* And try to complete it. */
760: if ((s = status_prompt_complete(word)) == NULL)
761: break;
762:
763: /* Trim out word. */
764: n = size - (last - c->prompt_buffer) + 1; /* with \0 */
765: memmove(first, last, n);
766: size -= last - first;
767:
768: /* Insert the new word. */
769: size += strlen(s);
770: off = first - c->prompt_buffer;
771: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 1);
772: first = c->prompt_buffer + off;
773: memmove(first + strlen(s), first, n);
774: memcpy(first, s, strlen(s));
775:
776: c->prompt_index = (first - c->prompt_buffer) + strlen(s);
777:
778: c->flags |= CLIENT_STATUS;
779: break;
780: case MODEKEYCMD_BACKSPACE:
781: if (c->prompt_index != 0) {
782: if (c->prompt_index == size)
783: c->prompt_buffer[--c->prompt_index] = '\0';
784: else {
785: memmove(c->prompt_buffer + c->prompt_index - 1,
786: c->prompt_buffer + c->prompt_index,
787: size + 1 - c->prompt_index);
788: c->prompt_index--;
789: }
790: c->flags |= CLIENT_STATUS;
791: }
792: break;
793: case MODEKEYCMD_DELETE:
794: if (c->prompt_index != size) {
795: memmove(c->prompt_buffer + c->prompt_index,
796: c->prompt_buffer + c->prompt_index + 1,
797: size + 1 - c->prompt_index);
798: c->flags |= CLIENT_STATUS;
799: }
800: break;
801: case MODEKEYCMD_UP:
802: if (server_locked)
803: break;
804:
805: if (ARRAY_LENGTH(&c->prompt_hdata) == 0)
806: break;
1.4 nicm 807: if (c->prompt_flags & PROMPT_HIDDEN)
808: memset(c->prompt_buffer, 0, strlen(c->prompt_buffer));
1.1 nicm 809: xfree(c->prompt_buffer);
810:
811: c->prompt_buffer = xstrdup(ARRAY_ITEM(&c->prompt_hdata,
812: ARRAY_LENGTH(&c->prompt_hdata) - 1 - c->prompt_hindex));
813: if (c->prompt_hindex != ARRAY_LENGTH(&c->prompt_hdata) - 1)
814: c->prompt_hindex++;
815:
816: c->prompt_index = strlen(c->prompt_buffer);
817: c->flags |= CLIENT_STATUS;
818: break;
819: case MODEKEYCMD_DOWN:
820: if (server_locked)
821: break;
822:
1.4 nicm 823: if (c->prompt_flags & PROMPT_HIDDEN)
824: memset(c->prompt_buffer, 0, strlen(c->prompt_buffer));
1.1 nicm 825: xfree(c->prompt_buffer);
826:
827: if (c->prompt_hindex != 0) {
828: c->prompt_hindex--;
829: c->prompt_buffer = xstrdup(ARRAY_ITEM(
830: &c->prompt_hdata, ARRAY_LENGTH(
831: &c->prompt_hdata) - 1 - c->prompt_hindex));
832: } else
833: c->prompt_buffer = xstrdup("");
834:
835: c->prompt_index = strlen(c->prompt_buffer);
836: c->flags |= CLIENT_STATUS;
837: break;
838: case MODEKEYCMD_PASTE:
839: if ((pb = paste_get_top(&c->session->buffers)) == NULL)
840: break;
841: if ((last = strchr(pb->data, '\n')) == NULL)
842: last = strchr(pb->data, '\0');
843: n = last - pb->data;
844:
845: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + n + 1);
846: if (c->prompt_index == size) {
847: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
848: c->prompt_index += n;
849: c->prompt_buffer[c->prompt_index] = '\0';
850: } else {
851: memmove(c->prompt_buffer + c->prompt_index + n,
852: c->prompt_buffer + c->prompt_index,
853: size + 1 - c->prompt_index);
854: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
855: c->prompt_index += n;
856: }
857:
858: c->flags |= CLIENT_STATUS;
859: break;
860: case MODEKEYCMD_CHOOSE:
861: if (*c->prompt_buffer != '\0') {
862: status_prompt_add_history(c);
1.12 nicm 863: if (c->prompt_callbackfn(
1.1 nicm 864: c->prompt_data, c->prompt_buffer) == 0)
865: status_prompt_clear(c);
866: break;
867: }
868: /* FALLTHROUGH */
869: case MODEKEYCMD_QUIT:
1.12 nicm 870: if (c->prompt_callbackfn(c->prompt_data, NULL) == 0)
1.1 nicm 871: status_prompt_clear(c);
872: break;
873: case MODEKEYCMD_OTHERKEY:
874: if (key < 32 || key > 126)
875: break;
876: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 2);
877:
878: if (c->prompt_index == size) {
879: c->prompt_buffer[c->prompt_index++] = key;
880: c->prompt_buffer[c->prompt_index] = '\0';
881: } else {
882: memmove(c->prompt_buffer + c->prompt_index + 1,
883: c->prompt_buffer + c->prompt_index,
884: size + 1 - c->prompt_index);
885: c->prompt_buffer[c->prompt_index++] = key;
886: }
887:
888: if (c->prompt_flags & PROMPT_SINGLE) {
1.12 nicm 889: if (c->prompt_callbackfn(
1.1 nicm 890: c->prompt_data, c->prompt_buffer) == 0)
891: status_prompt_clear(c);
892: }
893:
894: c->flags |= CLIENT_STATUS;
895: break;
896: default:
897: break;
898: }
899: }
900:
901: /* Add line to the history. */
902: void
903: status_prompt_add_history(struct client *c)
904: {
905: if (server_locked)
906: return;
907:
908: if (ARRAY_LENGTH(&c->prompt_hdata) > 0 &&
909: strcmp(ARRAY_LAST(&c->prompt_hdata), c->prompt_buffer) == 0)
910: return;
911:
912: if (ARRAY_LENGTH(&c->prompt_hdata) == PROMPT_HISTORY) {
913: xfree(ARRAY_FIRST(&c->prompt_hdata));
914: ARRAY_REMOVE(&c->prompt_hdata, 0);
915: }
916:
917: ARRAY_ADD(&c->prompt_hdata, xstrdup(c->prompt_buffer));
918: }
919:
920: /* Complete word. */
921: char *
922: status_prompt_complete(const char *s)
923: {
924: const struct cmd_entry **cmdent;
925: const struct set_option_entry *optent;
926: ARRAY_DECL(, const char *) list;
927: char *prefix, *s2;
1.9 nicm 928: u_int i;
1.1 nicm 929: size_t j;
930:
931: if (*s == '\0')
932: return (NULL);
933:
934: /* First, build a list of all the possible matches. */
935: ARRAY_INIT(&list);
936: for (cmdent = cmd_table; *cmdent != NULL; cmdent++) {
937: if (strncmp((*cmdent)->name, s, strlen(s)) == 0)
938: ARRAY_ADD(&list, (*cmdent)->name);
939: }
1.9 nicm 940: for (optent = set_option_table; optent->name != NULL; optent++) {
1.1 nicm 941: if (strncmp(optent->name, s, strlen(s)) == 0)
942: ARRAY_ADD(&list, optent->name);
943: }
1.9 nicm 944: for (optent = set_window_option_table; optent->name != NULL; optent++) {
1.1 nicm 945: if (strncmp(optent->name, s, strlen(s)) == 0)
946: ARRAY_ADD(&list, optent->name);
947: }
948:
949: /* If none, bail now. */
950: if (ARRAY_LENGTH(&list) == 0) {
951: ARRAY_FREE(&list);
952: return (NULL);
953: }
954:
955: /* If an exact match, return it, with a trailing space. */
956: if (ARRAY_LENGTH(&list) == 1) {
957: xasprintf(&s2, "%s ", ARRAY_FIRST(&list));
958: ARRAY_FREE(&list);
959: return (s2);
960: }
961:
962: /* Now loop through the list and find the longest common prefix. */
963: prefix = xstrdup(ARRAY_FIRST(&list));
964: for (i = 1; i < ARRAY_LENGTH(&list); i++) {
965: s = ARRAY_ITEM(&list, i);
966:
967: j = strlen(s);
968: if (j > strlen(prefix))
969: j = strlen(prefix);
970: for (; j > 0; j--) {
971: if (prefix[j - 1] != s[j - 1])
972: prefix[j - 1] = '\0';
973: }
974: }
975:
976: ARRAY_FREE(&list);
977: return (prefix);
978: }