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1.17 ! nicm 1: /* $OpenBSD: status.c,v 1.16 2009/07/21 18:40:30 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;
1.1 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);
1.15 nicm 176: }
177:
178: ox = 0;
179: if (width < xx) {
180: switch (options_get_number(&s->options, "status-justify")) {
181: case 1: /* centered */
182: ox = 1 + (xx - width) / 2;
183: break;
184: case 2: /* right */
185: ox = 1 + (xx - width);
186: break;
187: }
188: xx -= ox;
189: while (ox-- > 0)
190: screen_write_putc(&ctx, &stdgc, ' ');
1.1 nicm 191: }
192:
193: /* Draw each character in succession. */
194: offset = 0;
195: RB_FOREACH(wl, winlinks, &s->windows) {
196: memcpy(&gc, &stdgc, sizeof gc);
197: text = status_print(s, wl, &gc);
198:
199: if (larrow == 1 && offset < start) {
200: if (session_alert_has(s, wl, WINDOW_ACTIVITY))
201: larrow = -1;
202: else if (session_alert_has(s, wl, WINDOW_BELL))
203: larrow = -1;
204: else if (session_alert_has(s, wl, WINDOW_CONTENT))
205: larrow = -1;
206: }
207:
208: for (ptr = text; *ptr != '\0'; ptr++) {
209: if (offset >= start && offset < start + width)
210: screen_write_putc(&ctx, &gc, *ptr);
211: offset++;
212: }
213:
214: if (rarrow == 1 && offset > start + width) {
215: if (session_alert_has(s, wl, WINDOW_ACTIVITY))
216: rarrow = -1;
217: else if (session_alert_has(s, wl, WINDOW_BELL))
218: rarrow = -1;
219: else if (session_alert_has(s, wl, WINDOW_CONTENT))
220: rarrow = -1;
221: }
222:
223: if (offset < start + width) {
224: if (offset >= start) {
225: screen_write_putc(&ctx, &stdgc, ' ');
226: }
227: offset++;
228: }
229:
230: xfree(text);
231: }
232:
233: /* Fill the remaining space if any. */
234: while (offset++ < xx)
235: screen_write_putc(&ctx, &stdgc, ' ');
236:
237: /* Draw the last item. */
238: if (rlen != 0) {
239: screen_write_cursormove(&ctx, c->tty.sx - rlen - 1, yy);
1.5 nicm 240: screen_write_putc(&ctx, &stdgc, ' ');
241: screen_write_nputs(&ctx, rlen, &stdgc, utf8flag, "%s", right);
1.1 nicm 242: }
243:
244: /* Draw the arrows. */
245: if (larrow != 0) {
246: memcpy(&gc, &stdgc, sizeof gc);
247: if (larrow == -1)
248: gc.attr ^= GRID_ATTR_REVERSE;
249: if (llen != 0)
250: screen_write_cursormove(&ctx, llen + 1, yy);
251: else
252: screen_write_cursormove(&ctx, 0, yy);
253: screen_write_putc(&ctx, &gc, '<');
254: }
255: if (rarrow != 0) {
256: memcpy(&gc, &stdgc, sizeof gc);
257: if (rarrow == -1)
258: gc.attr ^= GRID_ATTR_REVERSE;
259: if (rlen != 0)
260: screen_write_cursormove(&ctx, c->tty.sx - rlen - 2, yy);
261: else
262: screen_write_cursormove(&ctx, c->tty.sx - 1, yy);
263: screen_write_putc(&ctx, &gc, '>');
264: }
265:
266: goto out;
267:
268: blank:
269: /* Just draw the whole line as blank. */
270: screen_write_start(&ctx, NULL, &c->status);
271: screen_write_cursormove(&ctx, 0, yy);
272: for (offset = 0; offset < c->tty.sx; offset++)
273: screen_write_putc(&ctx, &stdgc, ' ');
274:
275: out:
276: screen_write_stop(&ctx);
277:
278: if (left != NULL)
279: xfree(left);
280: if (right != NULL)
281: xfree(right);
282:
283: if (grid_compare(c->status.grid, old_status.grid) == 0) {
284: screen_free(&old_status);
285: return (0);
286: }
287: screen_free(&old_status);
288: return (1);
289: }
290:
291: char *
1.13 nicm 292: status_replace(struct session *s, const char *fmt, time_t t)
1.1 nicm 293: {
294: struct winlink *wl = s->curw;
295: static char out[BUFSIZ];
296: char in[BUFSIZ], tmp[256], ch, *iptr, *optr, *ptr, *endptr;
297: char *savedptr;
298: size_t len;
299: long n;
300:
301: strftime(in, sizeof in, fmt, localtime(&t));
302: in[(sizeof in) - 1] = '\0';
303:
304: iptr = in;
305: optr = out;
306: savedptr = NULL;
307:
308: while (*iptr != '\0') {
309: if (optr >= out + (sizeof out) - 1)
310: break;
311: switch (ch = *iptr++) {
312: case '#':
313: errno = 0;
314: n = strtol(iptr, &endptr, 10);
315: if ((n == 0 && errno != EINVAL) ||
316: (n == LONG_MIN && errno != ERANGE) ||
317: (n == LONG_MAX && errno != ERANGE) ||
318: n != 0)
319: iptr = endptr;
320: if (n <= 0)
321: n = LONG_MAX;
322:
323: ptr = NULL;
324: switch (*iptr++) {
325: case '(':
326: if (ptr == NULL) {
327: ptr = status_replace_popen(&iptr);
328: if (ptr == NULL)
329: break;
330: savedptr = ptr;
331: }
332: /* FALLTHROUGH */
333: case 'H':
334: if (ptr == NULL) {
335: if (gethostname(tmp, sizeof tmp) != 0)
336: fatal("gethostname");
337: ptr = tmp;
338: }
339: /* FALLTHROUGH */
1.13 nicm 340: case 'I':
341: if (ptr == NULL) {
342: xsnprintf(tmp, sizeof tmp, "%d", wl->idx);
343: ptr = tmp;
344: }
345: /* FALLTHROUGH */
346: case 'P':
347: if (ptr == NULL) {
348: xsnprintf(tmp, sizeof tmp, "%u",
349: window_pane_index(wl->window,
350: wl->window->active));
351: ptr = tmp;
352: }
1.16 nicm 353: /* FALLTHROUGH */
1.1 nicm 354: case 'S':
355: if (ptr == NULL)
356: ptr = s->name;
357: /* FALLTHROUGH */
358: case 'T':
359: if (ptr == NULL)
360: ptr = wl->window->active->base.title;
1.13 nicm 361: /* FALLTHROUGH */
362: case 'W':
363: if (ptr == NULL)
364: ptr = wl->window->name;
1.1 nicm 365: len = strlen(ptr);
366: if ((size_t) n < len)
367: len = n;
368: if (optr + len >= out + (sizeof out) - 1)
369: break;
370: while (len > 0 && *ptr != '\0') {
371: *optr++ = *ptr++;
372: len--;
373: }
374: break;
375: case '#':
376: *optr++ = '#';
377: break;
378: }
379: if (savedptr != NULL) {
380: xfree(savedptr);
381: savedptr = NULL;
382: }
383: break;
384: default:
385: *optr++ = ch;
386: break;
387: }
388: }
389: *optr = '\0';
390:
391: return (xstrdup(out));
392: }
393:
394: char *
395: status_replace_popen(char **iptr)
396: {
397: FILE *f;
398: char *buf, *cmd, *ptr;
399: int lastesc;
400: size_t len;
401:
402: if (**iptr == '\0')
403: return (NULL);
404: if (**iptr == ')') { /* no command given */
405: (*iptr)++;
406: return (NULL);
407: }
408:
409: buf = NULL;
410:
411: cmd = xmalloc(strlen(*iptr) + 1);
412: len = 0;
413:
414: lastesc = 0;
415: for (; **iptr != '\0'; (*iptr)++) {
416: if (!lastesc && **iptr == ')')
417: break; /* unescaped ) is the end */
418: if (!lastesc && **iptr == '\\') {
419: lastesc = 1;
420: continue; /* skip \ if not escaped */
421: }
422: lastesc = 0;
423: cmd[len++] = **iptr;
424: }
425: if (**iptr == '\0') /* no terminating ) */
426: goto out;
427: (*iptr)++; /* skip final ) */
428: cmd[len] = '\0';
429:
430: if ((f = popen(cmd, "r")) == NULL)
431: goto out;
432:
433: if ((buf = fgetln(f, &len)) == NULL) {
434: pclose(f);
435: goto out;
436: }
437: if (buf[len - 1] == '\n') {
438: buf[len - 1] = '\0';
439: buf = xstrdup(buf);
440: } else {
441: ptr = xmalloc(len + 1);
442: memcpy(ptr, buf, len);
443: ptr[len] = '\0';
444: buf = ptr;
445: }
446: pclose(f);
447:
448: out:
449: xfree(cmd);
450: return (buf);
451: }
452:
453: size_t
454: status_width(struct winlink *wl)
455: {
456: return (xsnprintf(NULL, 0, "%d:%s ", wl->idx, wl->window->name));
457: }
458:
459: char *
460: status_print(struct session *s, struct winlink *wl, struct grid_cell *gc)
461: {
462: char *text, flag;
463: u_char fg, bg, attr;
464:
465: fg = options_get_number(&wl->window->options, "window-status-fg");
466: if (fg != 8)
467: gc->fg = fg;
468: bg = options_get_number(&wl->window->options, "window-status-bg");
469: if (bg != 8)
470: gc->bg = bg;
471: attr = options_get_number(&wl->window->options, "window-status-attr");
472: if (attr != 0)
473: gc->attr = attr;
474:
475: flag = ' ';
476: if (wl == SLIST_FIRST(&s->lastw))
477: flag = '-';
1.14 nicm 478: if (wl == s->curw) {
479: fg = options_get_number(&wl->window->options, "window-status-current-fg");
480: if (fg != 8)
481: gc->fg = fg;
482: bg = options_get_number(&wl->window->options, "window-status-current-bg");
483: if (bg != 8)
484: gc->bg = bg;
485: attr = options_get_number(&wl->window->options, "window-status-current-attr");
486: if (attr != 0)
487: gc->attr = attr;
1.1 nicm 488: flag = '*';
1.14 nicm 489: }
1.1 nicm 490:
491: if (session_alert_has(s, wl, WINDOW_ACTIVITY)) {
492: flag = '#';
493: gc->attr ^= GRID_ATTR_REVERSE;
494: } else if (session_alert_has(s, wl, WINDOW_BELL)) {
495: flag = '!';
496: gc->attr ^= GRID_ATTR_REVERSE;
497: } else if (session_alert_has(s, wl, WINDOW_CONTENT)) {
498: flag = '+';
499: gc->attr ^= GRID_ATTR_REVERSE;
500: }
501:
502: xasprintf(&text, "%d:%s%c", wl->idx, wl->window->name, flag);
503: return (text);
504: }
505:
1.10 nicm 506: void printflike2
507: status_message_set(struct client *c, const char *fmt, ...)
1.1 nicm 508: {
509: struct timeval tv;
1.10 nicm 510: va_list ap;
1.1 nicm 511: int delay;
512:
1.12 nicm 513: status_prompt_clear(c);
514: status_message_clear(c);
515:
1.1 nicm 516: delay = options_get_number(&c->session->options, "display-time");
517: tv.tv_sec = delay / 1000;
518: tv.tv_usec = (delay % 1000) * 1000L;
519:
1.10 nicm 520: va_start(ap, fmt);
521: xvasprintf(&c->message_string, fmt, ap);
522: va_end(ap);
1.1 nicm 523: if (gettimeofday(&c->message_timer, NULL) != 0)
524: fatal("gettimeofday");
525: timeradd(&c->message_timer, &tv, &c->message_timer);
526:
527: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
528: c->flags |= CLIENT_STATUS;
529: }
530:
531: void
532: status_message_clear(struct client *c)
533: {
534: if (c->message_string == NULL)
535: return;
536:
537: xfree(c->message_string);
538: c->message_string = NULL;
539:
540: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 541: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 542:
543: screen_reinit(&c->status);
1.1 nicm 544: }
545:
546: /* Draw client message on status line of present else on last line. */
547: int
548: status_message_redraw(struct client *c)
549: {
550: struct screen_write_ctx ctx;
551: struct session *s = c->session;
552: struct screen old_status;
553: size_t len;
554: struct grid_cell gc;
555:
556: if (c->tty.sx == 0 || c->tty.sy == 0)
557: return (0);
558: memcpy(&old_status, &c->status, sizeof old_status);
559: screen_init(&c->status, c->tty.sx, 1, 0);
560:
561: len = strlen(c->message_string);
562: if (len > c->tty.sx)
563: len = c->tty.sx;
564:
565: memcpy(&gc, &grid_default_cell, sizeof gc);
566: gc.bg = options_get_number(&s->options, "message-fg");
567: gc.fg = options_get_number(&s->options, "message-bg");
568: gc.attr |= options_get_number(&s->options, "message-attr");
569:
570: screen_write_start(&ctx, NULL, &c->status);
571:
572: screen_write_cursormove(&ctx, 0, 0);
573: screen_write_puts(&ctx, &gc, "%.*s", (int) len, c->message_string);
574: for (; len < c->tty.sx; len++)
575: screen_write_putc(&ctx, &gc, ' ');
576:
577: screen_write_stop(&ctx);
578:
579: if (grid_compare(c->status.grid, old_status.grid) == 0) {
580: screen_free(&old_status);
581: return (0);
582: }
583: screen_free(&old_status);
584: return (1);
585: }
586:
587: void
1.12 nicm 588: status_prompt_set(struct client *c, const char *msg,
589: int (*callbackfn)(void *, const char *), void (*freefn)(void *),
590: void *data, int flags)
1.1 nicm 591: {
1.12 nicm 592: status_message_clear(c);
593: status_prompt_clear(c);
594:
1.1 nicm 595: c->prompt_string = xstrdup(msg);
596:
597: c->prompt_buffer = xstrdup("");
598: c->prompt_index = 0;
599:
1.12 nicm 600: c->prompt_callbackfn = callbackfn;
601: c->prompt_freefn = freefn;
1.1 nicm 602: c->prompt_data = data;
603:
604: c->prompt_hindex = 0;
605:
606: c->prompt_flags = flags;
607:
608: mode_key_init(&c->prompt_mdata,
609: options_get_number(&c->session->options, "status-keys"),
610: MODEKEY_CANEDIT);
611:
612: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
613: c->flags |= CLIENT_STATUS;
614: }
615:
616: void
617: status_prompt_clear(struct client *c)
618: {
1.12 nicm 619: if (c->prompt_string == NULL)
1.1 nicm 620: return;
621:
1.12 nicm 622: if (c->prompt_freefn != NULL && c->prompt_data != NULL)
623: c->prompt_freefn(c->prompt_data);
624:
1.1 nicm 625: mode_key_free(&c->prompt_mdata);
626:
627: xfree(c->prompt_string);
628: c->prompt_string = NULL;
629:
1.4 nicm 630: if (c->prompt_flags & PROMPT_HIDDEN)
631: memset(c->prompt_buffer, 0, strlen(c->prompt_buffer));
1.1 nicm 632: xfree(c->prompt_buffer);
633: c->prompt_buffer = NULL;
634:
635: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 636: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 637:
638: screen_reinit(&c->status);
1.1 nicm 639: }
640:
641: /* Draw client prompt on status line of present else on last line. */
642: int
643: status_prompt_redraw(struct client *c)
644: {
645: struct screen_write_ctx ctx;
646: struct session *s = c->session;
647: struct screen old_status;
1.17 ! nicm 648: size_t i, size, left, len, off, n;
1.1 nicm 649: char ch;
650: struct grid_cell gc;
651:
652: if (c->tty.sx == 0 || c->tty.sy == 0)
653: return (0);
654: memcpy(&old_status, &c->status, sizeof old_status);
655: screen_init(&c->status, c->tty.sx, 1, 0);
1.17 ! nicm 656: off = 0;
1.1 nicm 657:
658: len = strlen(c->prompt_string);
659: if (len > c->tty.sx)
660: len = c->tty.sx;
661:
662: memcpy(&gc, &grid_default_cell, sizeof gc);
663: gc.bg = options_get_number(&s->options, "message-fg");
664: gc.fg = options_get_number(&s->options, "message-bg");
665: gc.attr |= options_get_number(&s->options, "message-attr");
666:
667: screen_write_start(&ctx, NULL, &c->status);
668:
669: screen_write_cursormove(&ctx, 0, 0);
670: screen_write_puts(&ctx, &gc, "%.*s", (int) len, c->prompt_string);
671:
672: left = c->tty.sx - len;
673: if (left != 0) {
674: if (c->prompt_index < left)
675: size = strlen(c->prompt_buffer);
676: else {
1.17 ! nicm 677: off = c->prompt_index - left + 1;
1.1 nicm 678: if (c->prompt_index == strlen(c->prompt_buffer))
679: left--;
680: size = left;
681: }
682: if (c->prompt_flags & PROMPT_HIDDEN) {
683: n = strlen(c->prompt_buffer);
684: if (n > left)
685: n = left;
686: for (i = 0; i < n; i++)
687: screen_write_putc(&ctx, &gc, '*');
688: } else {
689: screen_write_puts(&ctx, &gc,
1.17 ! nicm 690: "%.*s", (int) left, c->prompt_buffer + off);
1.1 nicm 691: }
692:
693: for (i = len + size; i < c->tty.sx; i++)
694: screen_write_putc(&ctx, &gc, ' ');
695:
1.17 ! nicm 696: /* Draw a fake cursor. */
! 697: screen_write_cursormove(&ctx, len + c->prompt_index - off, 0);
! 698: if (c->prompt_index == strlen(c->prompt_buffer))
! 699: ch = ' ';
! 700: else {
! 701: if (c->prompt_flags & PROMPT_HIDDEN)
! 702: ch = '*';
! 703: else
! 704: ch = c->prompt_buffer[c->prompt_index];
! 705: }
! 706: if (ch == '\0')
! 707: ch = ' ';
! 708: gc.attr ^= GRID_ATTR_REVERSE;
! 709: screen_write_putc(&ctx, &gc, ch);
1.1 nicm 710: }
711:
712: screen_write_stop(&ctx);
713:
714: if (grid_compare(c->status.grid, old_status.grid) == 0) {
715: screen_free(&old_status);
716: return (0);
717: }
718: screen_free(&old_status);
719: return (1);
720: }
721:
722: /* Handle keys in prompt. */
723: void
724: status_prompt_key(struct client *c, int key)
725: {
726: struct paste_buffer *pb;
727: char *s, *first, *last, word[64];
728: size_t size, n, off, idx;
729:
730: size = strlen(c->prompt_buffer);
731: switch (mode_key_lookup(&c->prompt_mdata, key)) {
732: case MODEKEYCMD_LEFT:
733: if (c->prompt_index > 0) {
734: c->prompt_index--;
735: c->flags |= CLIENT_STATUS;
736: }
737: break;
738: case MODEKEYCMD_RIGHT:
739: if (c->prompt_index < size) {
740: c->prompt_index++;
741: c->flags |= CLIENT_STATUS;
742: }
743: break;
744: case MODEKEYCMD_STARTOFLINE:
1.6 nicm 745: case MODEKEYCMD_BACKTOINDENTATION:
1.1 nicm 746: if (c->prompt_index != 0) {
747: c->prompt_index = 0;
748: c->flags |= CLIENT_STATUS;
749: }
750: break;
751: case MODEKEYCMD_ENDOFLINE:
752: if (c->prompt_index != size) {
753: c->prompt_index = size;
754: c->flags |= CLIENT_STATUS;
755: }
756: break;
757: case MODEKEYCMD_COMPLETE:
758: if (*c->prompt_buffer == '\0')
759: break;
760:
761: idx = c->prompt_index;
762: if (idx != 0)
763: idx--;
764:
765: /* Find the word we are in. */
766: first = c->prompt_buffer + idx;
767: while (first > c->prompt_buffer && *first != ' ')
768: first--;
769: while (*first == ' ')
770: first++;
771: last = c->prompt_buffer + idx;
772: while (*last != '\0' && *last != ' ')
773: last++;
774: while (*last == ' ')
775: last--;
776: if (*last != '\0')
777: last++;
778: if (last <= first ||
779: ((size_t) (last - first)) > (sizeof word) - 1)
780: break;
781: memcpy(word, first, last - first);
782: word[last - first] = '\0';
783:
784: /* And try to complete it. */
785: if ((s = status_prompt_complete(word)) == NULL)
786: break;
787:
788: /* Trim out word. */
789: n = size - (last - c->prompt_buffer) + 1; /* with \0 */
790: memmove(first, last, n);
791: size -= last - first;
792:
793: /* Insert the new word. */
794: size += strlen(s);
795: off = first - c->prompt_buffer;
796: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 1);
797: first = c->prompt_buffer + off;
798: memmove(first + strlen(s), first, n);
799: memcpy(first, s, strlen(s));
800:
801: c->prompt_index = (first - c->prompt_buffer) + strlen(s);
802:
803: c->flags |= CLIENT_STATUS;
804: break;
805: case MODEKEYCMD_BACKSPACE:
806: if (c->prompt_index != 0) {
807: if (c->prompt_index == size)
808: c->prompt_buffer[--c->prompt_index] = '\0';
809: else {
810: memmove(c->prompt_buffer + c->prompt_index - 1,
811: c->prompt_buffer + c->prompt_index,
812: size + 1 - c->prompt_index);
813: c->prompt_index--;
814: }
815: c->flags |= CLIENT_STATUS;
816: }
817: break;
818: case MODEKEYCMD_DELETE:
819: if (c->prompt_index != size) {
820: memmove(c->prompt_buffer + c->prompt_index,
821: c->prompt_buffer + c->prompt_index + 1,
822: size + 1 - c->prompt_index);
823: c->flags |= CLIENT_STATUS;
824: }
825: break;
826: case MODEKEYCMD_UP:
827: if (server_locked)
828: break;
829:
830: if (ARRAY_LENGTH(&c->prompt_hdata) == 0)
831: break;
1.4 nicm 832: if (c->prompt_flags & PROMPT_HIDDEN)
833: memset(c->prompt_buffer, 0, strlen(c->prompt_buffer));
1.1 nicm 834: xfree(c->prompt_buffer);
835:
836: c->prompt_buffer = xstrdup(ARRAY_ITEM(&c->prompt_hdata,
837: ARRAY_LENGTH(&c->prompt_hdata) - 1 - c->prompt_hindex));
838: if (c->prompt_hindex != ARRAY_LENGTH(&c->prompt_hdata) - 1)
839: c->prompt_hindex++;
840:
841: c->prompt_index = strlen(c->prompt_buffer);
842: c->flags |= CLIENT_STATUS;
843: break;
844: case MODEKEYCMD_DOWN:
845: if (server_locked)
846: break;
847:
1.4 nicm 848: if (c->prompt_flags & PROMPT_HIDDEN)
849: memset(c->prompt_buffer, 0, strlen(c->prompt_buffer));
1.1 nicm 850: xfree(c->prompt_buffer);
851:
852: if (c->prompt_hindex != 0) {
853: c->prompt_hindex--;
854: c->prompt_buffer = xstrdup(ARRAY_ITEM(
855: &c->prompt_hdata, ARRAY_LENGTH(
856: &c->prompt_hdata) - 1 - c->prompt_hindex));
857: } else
858: c->prompt_buffer = xstrdup("");
859:
860: c->prompt_index = strlen(c->prompt_buffer);
861: c->flags |= CLIENT_STATUS;
862: break;
863: case MODEKEYCMD_PASTE:
864: if ((pb = paste_get_top(&c->session->buffers)) == NULL)
865: break;
866: if ((last = strchr(pb->data, '\n')) == NULL)
867: last = strchr(pb->data, '\0');
868: n = last - pb->data;
869:
870: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + n + 1);
871: if (c->prompt_index == size) {
872: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
873: c->prompt_index += n;
874: c->prompt_buffer[c->prompt_index] = '\0';
875: } else {
876: memmove(c->prompt_buffer + c->prompt_index + n,
877: c->prompt_buffer + c->prompt_index,
878: size + 1 - c->prompt_index);
879: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
880: c->prompt_index += n;
881: }
882:
883: c->flags |= CLIENT_STATUS;
884: break;
885: case MODEKEYCMD_CHOOSE:
886: if (*c->prompt_buffer != '\0') {
887: status_prompt_add_history(c);
1.12 nicm 888: if (c->prompt_callbackfn(
1.1 nicm 889: c->prompt_data, c->prompt_buffer) == 0)
890: status_prompt_clear(c);
891: break;
892: }
893: /* FALLTHROUGH */
894: case MODEKEYCMD_QUIT:
1.12 nicm 895: if (c->prompt_callbackfn(c->prompt_data, NULL) == 0)
1.1 nicm 896: status_prompt_clear(c);
897: break;
898: case MODEKEYCMD_OTHERKEY:
899: if (key < 32 || key > 126)
900: break;
901: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 2);
902:
903: if (c->prompt_index == size) {
904: c->prompt_buffer[c->prompt_index++] = key;
905: c->prompt_buffer[c->prompt_index] = '\0';
906: } else {
907: memmove(c->prompt_buffer + c->prompt_index + 1,
908: c->prompt_buffer + c->prompt_index,
909: size + 1 - c->prompt_index);
910: c->prompt_buffer[c->prompt_index++] = key;
911: }
912:
913: if (c->prompt_flags & PROMPT_SINGLE) {
1.12 nicm 914: if (c->prompt_callbackfn(
1.1 nicm 915: c->prompt_data, c->prompt_buffer) == 0)
916: status_prompt_clear(c);
917: }
918:
919: c->flags |= CLIENT_STATUS;
920: break;
921: default:
922: break;
923: }
924: }
925:
926: /* Add line to the history. */
927: void
928: status_prompt_add_history(struct client *c)
929: {
930: if (server_locked)
931: return;
932:
933: if (ARRAY_LENGTH(&c->prompt_hdata) > 0 &&
934: strcmp(ARRAY_LAST(&c->prompt_hdata), c->prompt_buffer) == 0)
935: return;
936:
937: if (ARRAY_LENGTH(&c->prompt_hdata) == PROMPT_HISTORY) {
938: xfree(ARRAY_FIRST(&c->prompt_hdata));
939: ARRAY_REMOVE(&c->prompt_hdata, 0);
940: }
941:
942: ARRAY_ADD(&c->prompt_hdata, xstrdup(c->prompt_buffer));
943: }
944:
945: /* Complete word. */
946: char *
947: status_prompt_complete(const char *s)
948: {
949: const struct cmd_entry **cmdent;
950: const struct set_option_entry *optent;
951: ARRAY_DECL(, const char *) list;
952: char *prefix, *s2;
1.9 nicm 953: u_int i;
1.1 nicm 954: size_t j;
955:
956: if (*s == '\0')
957: return (NULL);
958:
959: /* First, build a list of all the possible matches. */
960: ARRAY_INIT(&list);
961: for (cmdent = cmd_table; *cmdent != NULL; cmdent++) {
962: if (strncmp((*cmdent)->name, s, strlen(s)) == 0)
963: ARRAY_ADD(&list, (*cmdent)->name);
964: }
1.9 nicm 965: for (optent = set_option_table; optent->name != NULL; optent++) {
1.1 nicm 966: if (strncmp(optent->name, s, strlen(s)) == 0)
967: ARRAY_ADD(&list, optent->name);
968: }
1.9 nicm 969: for (optent = set_window_option_table; optent->name != NULL; optent++) {
1.1 nicm 970: if (strncmp(optent->name, s, strlen(s)) == 0)
971: ARRAY_ADD(&list, optent->name);
972: }
973:
974: /* If none, bail now. */
975: if (ARRAY_LENGTH(&list) == 0) {
976: ARRAY_FREE(&list);
977: return (NULL);
978: }
979:
980: /* If an exact match, return it, with a trailing space. */
981: if (ARRAY_LENGTH(&list) == 1) {
982: xasprintf(&s2, "%s ", ARRAY_FIRST(&list));
983: ARRAY_FREE(&list);
984: return (s2);
985: }
986:
987: /* Now loop through the list and find the longest common prefix. */
988: prefix = xstrdup(ARRAY_FIRST(&list));
989: for (i = 1; i < ARRAY_LENGTH(&list); i++) {
990: s = ARRAY_ITEM(&list, i);
991:
992: j = strlen(s);
993: if (j > strlen(prefix))
994: j = strlen(prefix);
995: for (; j > 0; j--) {
996: if (prefix[j - 1] != s[j - 1])
997: prefix[j - 1] = '\0';
998: }
999: }
1000:
1001: ARRAY_FREE(&list);
1002: return (prefix);
1003: }