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1.27 ! nicm 1: /* $OpenBSD: status.c,v 1.26 2009/08/18 07:23:43 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");
1.3 nicm 110: llen2 = screen_write_strlen(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");
1.3 nicm 117: rlen2 = screen_write_strlen(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);
1.24 nicm 195: screen_write_nputs(&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, ' ');
1.24 nicm 269: screen_write_nputs(&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--;
401: }
402: break;
403: case '#':
404: *optr++ = '#';
405: break;
406: }
407: if (savedptr != NULL) {
408: xfree(savedptr);
409: savedptr = NULL;
410: }
411: break;
412: default:
413: *optr++ = ch;
414: break;
415: }
416: }
417: *optr = '\0';
418:
419: return (xstrdup(out));
420: }
421:
422: char *
423: status_replace_popen(char **iptr)
424: {
425: FILE *f;
426: char *buf, *cmd, *ptr;
427: int lastesc;
428: size_t len;
429:
430: if (**iptr == '\0')
431: return (NULL);
432: if (**iptr == ')') { /* no command given */
433: (*iptr)++;
434: return (NULL);
435: }
436:
437: buf = NULL;
438:
439: cmd = xmalloc(strlen(*iptr) + 1);
440: len = 0;
441:
442: lastesc = 0;
443: for (; **iptr != '\0'; (*iptr)++) {
444: if (!lastesc && **iptr == ')')
445: break; /* unescaped ) is the end */
446: if (!lastesc && **iptr == '\\') {
447: lastesc = 1;
448: continue; /* skip \ if not escaped */
449: }
450: lastesc = 0;
451: cmd[len++] = **iptr;
452: }
453: if (**iptr == '\0') /* no terminating ) */
454: goto out;
455: (*iptr)++; /* skip final ) */
456: cmd[len] = '\0';
457:
458: if ((f = popen(cmd, "r")) == NULL)
459: goto out;
460:
461: if ((buf = fgetln(f, &len)) == NULL) {
462: pclose(f);
463: goto out;
464: }
465: if (buf[len - 1] == '\n') {
466: buf[len - 1] = '\0';
467: buf = xstrdup(buf);
468: } else {
469: ptr = xmalloc(len + 1);
470: memcpy(ptr, buf, len);
471: ptr[len] = '\0';
472: buf = ptr;
473: }
474: pclose(f);
475:
476: out:
477: xfree(cmd);
478: return (buf);
479: }
480:
481: size_t
482: status_width(struct winlink *wl)
483: {
484: return (xsnprintf(NULL, 0, "%d:%s ", wl->idx, wl->window->name));
485: }
486:
487: char *
488: status_print(struct session *s, struct winlink *wl, struct grid_cell *gc)
489: {
490: char *text, flag;
491: u_char fg, bg, attr;
492:
493: fg = options_get_number(&wl->window->options, "window-status-fg");
494: if (fg != 8)
495: gc->fg = fg;
496: bg = options_get_number(&wl->window->options, "window-status-bg");
497: if (bg != 8)
498: gc->bg = bg;
499: attr = options_get_number(&wl->window->options, "window-status-attr");
500: if (attr != 0)
501: gc->attr = attr;
502:
503: flag = ' ';
504: if (wl == SLIST_FIRST(&s->lastw))
505: flag = '-';
1.14 nicm 506: if (wl == s->curw) {
507: fg = options_get_number(&wl->window->options, "window-status-current-fg");
508: if (fg != 8)
509: gc->fg = fg;
510: bg = options_get_number(&wl->window->options, "window-status-current-bg");
511: if (bg != 8)
512: gc->bg = bg;
513: attr = options_get_number(&wl->window->options, "window-status-current-attr");
514: if (attr != 0)
515: gc->attr = attr;
1.1 nicm 516: flag = '*';
1.14 nicm 517: }
1.1 nicm 518:
519: if (session_alert_has(s, wl, WINDOW_ACTIVITY)) {
520: flag = '#';
521: gc->attr ^= GRID_ATTR_REVERSE;
522: } else if (session_alert_has(s, wl, WINDOW_BELL)) {
523: flag = '!';
524: gc->attr ^= GRID_ATTR_REVERSE;
525: } else if (session_alert_has(s, wl, WINDOW_CONTENT)) {
526: flag = '+';
527: gc->attr ^= GRID_ATTR_REVERSE;
528: }
529:
530: xasprintf(&text, "%d:%s%c", wl->idx, wl->window->name, flag);
531: return (text);
532: }
533:
1.10 nicm 534: void printflike2
535: status_message_set(struct client *c, const char *fmt, ...)
1.1 nicm 536: {
537: struct timeval tv;
1.10 nicm 538: va_list ap;
1.1 nicm 539: int delay;
540:
1.12 nicm 541: status_prompt_clear(c);
542: status_message_clear(c);
543:
1.1 nicm 544: delay = options_get_number(&c->session->options, "display-time");
545: tv.tv_sec = delay / 1000;
546: tv.tv_usec = (delay % 1000) * 1000L;
547:
1.10 nicm 548: va_start(ap, fmt);
549: xvasprintf(&c->message_string, fmt, ap);
550: va_end(ap);
1.1 nicm 551: if (gettimeofday(&c->message_timer, NULL) != 0)
552: fatal("gettimeofday");
553: timeradd(&c->message_timer, &tv, &c->message_timer);
554:
555: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
556: c->flags |= CLIENT_STATUS;
557: }
558:
559: void
560: status_message_clear(struct client *c)
561: {
562: if (c->message_string == NULL)
563: return;
564:
565: xfree(c->message_string);
566: c->message_string = NULL;
567:
568: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 569: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 570:
571: screen_reinit(&c->status);
1.1 nicm 572: }
573:
574: /* Draw client message on status line of present else on last line. */
575: int
576: status_message_redraw(struct client *c)
577: {
578: struct screen_write_ctx ctx;
579: struct session *s = c->session;
580: struct screen old_status;
581: size_t len;
582: struct grid_cell gc;
583:
584: if (c->tty.sx == 0 || c->tty.sy == 0)
585: return (0);
586: memcpy(&old_status, &c->status, sizeof old_status);
587: screen_init(&c->status, c->tty.sx, 1, 0);
588:
589: len = strlen(c->message_string);
590: if (len > c->tty.sx)
591: len = c->tty.sx;
592:
593: memcpy(&gc, &grid_default_cell, sizeof gc);
1.23 nicm 594: gc.fg = options_get_number(&s->options, "message-fg");
595: gc.bg = options_get_number(&s->options, "message-bg");
1.1 nicm 596: gc.attr |= options_get_number(&s->options, "message-attr");
597:
598: screen_write_start(&ctx, NULL, &c->status);
599:
600: screen_write_cursormove(&ctx, 0, 0);
601: screen_write_puts(&ctx, &gc, "%.*s", (int) len, c->message_string);
602: for (; len < c->tty.sx; len++)
603: screen_write_putc(&ctx, &gc, ' ');
604:
605: screen_write_stop(&ctx);
606:
607: if (grid_compare(c->status.grid, old_status.grid) == 0) {
608: screen_free(&old_status);
609: return (0);
610: }
611: screen_free(&old_status);
612: return (1);
613: }
614:
615: void
1.12 nicm 616: status_prompt_set(struct client *c, const char *msg,
617: int (*callbackfn)(void *, const char *), void (*freefn)(void *),
618: void *data, int flags)
1.1 nicm 619: {
1.20 nicm 620: int keys;
621:
1.12 nicm 622: status_message_clear(c);
623: status_prompt_clear(c);
624:
1.1 nicm 625: c->prompt_string = xstrdup(msg);
626:
627: c->prompt_buffer = xstrdup("");
628: c->prompt_index = 0;
629:
1.12 nicm 630: c->prompt_callbackfn = callbackfn;
631: c->prompt_freefn = freefn;
1.1 nicm 632: c->prompt_data = data;
633:
634: c->prompt_hindex = 0;
635:
636: c->prompt_flags = flags;
637:
1.20 nicm 638: keys = options_get_number(&c->session->options, "status-keys");
639: if (keys == MODEKEY_EMACS)
1.21 nicm 640: mode_key_init(&c->prompt_mdata, &mode_key_tree_emacs_edit);
1.20 nicm 641: else
1.21 nicm 642: mode_key_init(&c->prompt_mdata, &mode_key_tree_vi_edit);
1.1 nicm 643:
644: c->tty.flags |= (TTY_NOCURSOR|TTY_FREEZE);
645: c->flags |= CLIENT_STATUS;
646: }
647:
648: void
649: status_prompt_clear(struct client *c)
650: {
1.12 nicm 651: if (c->prompt_string == NULL)
1.1 nicm 652: return;
653:
1.12 nicm 654: if (c->prompt_freefn != NULL && c->prompt_data != NULL)
655: c->prompt_freefn(c->prompt_data);
1.1 nicm 656:
657: xfree(c->prompt_string);
658: c->prompt_string = NULL;
659:
1.4 nicm 660: if (c->prompt_flags & PROMPT_HIDDEN)
661: memset(c->prompt_buffer, 0, strlen(c->prompt_buffer));
1.1 nicm 662: xfree(c->prompt_buffer);
663: c->prompt_buffer = NULL;
664:
665: c->tty.flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
1.12 nicm 666: c->flags |= CLIENT_REDRAW; /* screen was frozen and may have changed */
1.7 nicm 667:
668: screen_reinit(&c->status);
1.27 ! nicm 669: }
! 670:
! 671: void
! 672: status_prompt_update(struct client *c, const char *msg)
! 673: {
! 674: xfree(c->prompt_string);
! 675: c->prompt_string = xstrdup(msg);
! 676:
! 677: *c->prompt_buffer = '\0';
! 678: c->prompt_index = 0;
! 679:
! 680: c->prompt_hindex = 0;
! 681:
! 682: c->flags |= CLIENT_STATUS;
1.1 nicm 683: }
684:
685: /* Draw client prompt on status line of present else on last line. */
686: int
687: status_prompt_redraw(struct client *c)
688: {
689: struct screen_write_ctx ctx;
690: struct session *s = c->session;
691: struct screen old_status;
1.17 nicm 692: size_t i, size, left, len, off, n;
1.1 nicm 693: char ch;
694: struct grid_cell gc;
695:
696: if (c->tty.sx == 0 || c->tty.sy == 0)
697: return (0);
698: memcpy(&old_status, &c->status, sizeof old_status);
699: screen_init(&c->status, c->tty.sx, 1, 0);
1.17 nicm 700: off = 0;
1.1 nicm 701:
702: len = strlen(c->prompt_string);
703: if (len > c->tty.sx)
704: len = c->tty.sx;
705:
706: memcpy(&gc, &grid_default_cell, sizeof gc);
1.23 nicm 707: gc.fg = options_get_number(&s->options, "message-fg");
708: gc.bg = options_get_number(&s->options, "message-bg");
1.1 nicm 709: gc.attr |= options_get_number(&s->options, "message-attr");
710:
711: screen_write_start(&ctx, NULL, &c->status);
712:
713: screen_write_cursormove(&ctx, 0, 0);
714: screen_write_puts(&ctx, &gc, "%.*s", (int) len, c->prompt_string);
715:
716: left = c->tty.sx - len;
717: if (left != 0) {
718: if (c->prompt_index < left)
719: size = strlen(c->prompt_buffer);
720: else {
1.17 nicm 721: off = c->prompt_index - left + 1;
1.1 nicm 722: if (c->prompt_index == strlen(c->prompt_buffer))
723: left--;
724: size = left;
725: }
726: if (c->prompt_flags & PROMPT_HIDDEN) {
727: n = strlen(c->prompt_buffer);
728: if (n > left)
729: n = left;
730: for (i = 0; i < n; i++)
731: screen_write_putc(&ctx, &gc, '*');
732: } else {
733: screen_write_puts(&ctx, &gc,
1.17 nicm 734: "%.*s", (int) left, c->prompt_buffer + off);
1.1 nicm 735: }
736:
737: for (i = len + size; i < c->tty.sx; i++)
738: screen_write_putc(&ctx, &gc, ' ');
739:
1.17 nicm 740: /* Draw a fake cursor. */
741: screen_write_cursormove(&ctx, len + c->prompt_index - off, 0);
742: if (c->prompt_index == strlen(c->prompt_buffer))
743: ch = ' ';
744: else {
745: if (c->prompt_flags & PROMPT_HIDDEN)
746: ch = '*';
747: else
748: ch = c->prompt_buffer[c->prompt_index];
749: }
750: if (ch == '\0')
751: ch = ' ';
752: gc.attr ^= GRID_ATTR_REVERSE;
753: screen_write_putc(&ctx, &gc, ch);
1.1 nicm 754: }
755:
756: screen_write_stop(&ctx);
757:
758: if (grid_compare(c->status.grid, old_status.grid) == 0) {
759: screen_free(&old_status);
760: return (0);
761: }
762: screen_free(&old_status);
763: return (1);
764: }
765:
766: /* Handle keys in prompt. */
767: void
768: status_prompt_key(struct client *c, int key)
769: {
770: struct paste_buffer *pb;
771: char *s, *first, *last, word[64];
772: size_t size, n, off, idx;
773:
774: size = strlen(c->prompt_buffer);
775: switch (mode_key_lookup(&c->prompt_mdata, key)) {
1.20 nicm 776: case MODEKEYEDIT_CURSORLEFT:
1.1 nicm 777: if (c->prompt_index > 0) {
778: c->prompt_index--;
779: c->flags |= CLIENT_STATUS;
780: }
781: break;
1.20 nicm 782: case MODEKEYEDIT_SWITCHMODEAPPEND:
783: case MODEKEYEDIT_CURSORRIGHT:
1.1 nicm 784: if (c->prompt_index < size) {
785: c->prompt_index++;
786: c->flags |= CLIENT_STATUS;
787: }
788: break;
1.20 nicm 789: case MODEKEYEDIT_STARTOFLINE:
1.1 nicm 790: if (c->prompt_index != 0) {
791: c->prompt_index = 0;
792: c->flags |= CLIENT_STATUS;
793: }
794: break;
1.20 nicm 795: case MODEKEYEDIT_ENDOFLINE:
1.1 nicm 796: if (c->prompt_index != size) {
797: c->prompt_index = size;
798: c->flags |= CLIENT_STATUS;
799: }
800: break;
1.20 nicm 801: case MODEKEYEDIT_COMPLETE:
1.1 nicm 802: if (*c->prompt_buffer == '\0')
803: break;
804:
805: idx = c->prompt_index;
806: if (idx != 0)
807: idx--;
808:
809: /* Find the word we are in. */
810: first = c->prompt_buffer + idx;
811: while (first > c->prompt_buffer && *first != ' ')
812: first--;
813: while (*first == ' ')
814: first++;
815: last = c->prompt_buffer + idx;
816: while (*last != '\0' && *last != ' ')
817: last++;
818: while (*last == ' ')
819: last--;
820: if (*last != '\0')
821: last++;
822: if (last <= first ||
823: ((size_t) (last - first)) > (sizeof word) - 1)
824: break;
825: memcpy(word, first, last - first);
826: word[last - first] = '\0';
827:
828: /* And try to complete it. */
829: if ((s = status_prompt_complete(word)) == NULL)
830: break;
831:
832: /* Trim out word. */
833: n = size - (last - c->prompt_buffer) + 1; /* with \0 */
834: memmove(first, last, n);
835: size -= last - first;
836:
837: /* Insert the new word. */
838: size += strlen(s);
839: off = first - c->prompt_buffer;
840: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 1);
841: first = c->prompt_buffer + off;
842: memmove(first + strlen(s), first, n);
843: memcpy(first, s, strlen(s));
844:
845: c->prompt_index = (first - c->prompt_buffer) + strlen(s);
1.22 nicm 846: xfree(s);
1.1 nicm 847:
848: c->flags |= CLIENT_STATUS;
849: break;
1.20 nicm 850: case MODEKEYEDIT_BACKSPACE:
1.1 nicm 851: if (c->prompt_index != 0) {
852: if (c->prompt_index == size)
853: c->prompt_buffer[--c->prompt_index] = '\0';
854: else {
855: memmove(c->prompt_buffer + c->prompt_index - 1,
856: c->prompt_buffer + c->prompt_index,
857: size + 1 - c->prompt_index);
858: c->prompt_index--;
859: }
860: c->flags |= CLIENT_STATUS;
861: }
862: break;
1.20 nicm 863: case MODEKEYEDIT_DELETE:
1.1 nicm 864: if (c->prompt_index != size) {
865: memmove(c->prompt_buffer + c->prompt_index,
866: c->prompt_buffer + c->prompt_index + 1,
867: size + 1 - c->prompt_index);
1.18 nicm 868: c->flags |= CLIENT_STATUS;
869: }
1.26 nicm 870: break;
871: case MODEKEYEDIT_DELETELINE:
872: *c->prompt_buffer = '\0';
873: c->prompt_index = 0;
874: c->flags |= CLIENT_STATUS;
1.18 nicm 875: break;
1.20 nicm 876: case MODEKEYEDIT_DELETETOENDOFLINE:
1.18 nicm 877: if (c->prompt_index < size) {
878: c->prompt_buffer[c->prompt_index] = '\0';
1.1 nicm 879: c->flags |= CLIENT_STATUS;
880: }
881: break;
1.20 nicm 882: case MODEKEYEDIT_HISTORYUP:
1.1 nicm 883: if (server_locked)
884: break;
885:
886: if (ARRAY_LENGTH(&c->prompt_hdata) == 0)
887: break;
1.4 nicm 888: if (c->prompt_flags & PROMPT_HIDDEN)
889: memset(c->prompt_buffer, 0, strlen(c->prompt_buffer));
1.1 nicm 890: xfree(c->prompt_buffer);
891:
892: c->prompt_buffer = xstrdup(ARRAY_ITEM(&c->prompt_hdata,
893: ARRAY_LENGTH(&c->prompt_hdata) - 1 - c->prompt_hindex));
894: if (c->prompt_hindex != ARRAY_LENGTH(&c->prompt_hdata) - 1)
895: c->prompt_hindex++;
896:
897: c->prompt_index = strlen(c->prompt_buffer);
898: c->flags |= CLIENT_STATUS;
899: break;
1.20 nicm 900: case MODEKEYEDIT_HISTORYDOWN:
1.1 nicm 901: if (server_locked)
902: break;
903:
1.4 nicm 904: if (c->prompt_flags & PROMPT_HIDDEN)
905: memset(c->prompt_buffer, 0, strlen(c->prompt_buffer));
1.1 nicm 906: xfree(c->prompt_buffer);
907:
908: if (c->prompt_hindex != 0) {
909: c->prompt_hindex--;
910: c->prompt_buffer = xstrdup(ARRAY_ITEM(
911: &c->prompt_hdata, ARRAY_LENGTH(
912: &c->prompt_hdata) - 1 - c->prompt_hindex));
913: } else
914: c->prompt_buffer = xstrdup("");
915:
916: c->prompt_index = strlen(c->prompt_buffer);
917: c->flags |= CLIENT_STATUS;
918: break;
1.20 nicm 919: case MODEKEYEDIT_PASTE:
1.1 nicm 920: if ((pb = paste_get_top(&c->session->buffers)) == NULL)
921: break;
922: if ((last = strchr(pb->data, '\n')) == NULL)
923: last = strchr(pb->data, '\0');
924: n = last - pb->data;
925:
926: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + n + 1);
927: if (c->prompt_index == size) {
928: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
929: c->prompt_index += n;
930: c->prompt_buffer[c->prompt_index] = '\0';
931: } else {
932: memmove(c->prompt_buffer + c->prompt_index + n,
933: c->prompt_buffer + c->prompt_index,
934: size + 1 - c->prompt_index);
935: memcpy(c->prompt_buffer + c->prompt_index, pb->data, n);
936: c->prompt_index += n;
937: }
938:
939: c->flags |= CLIENT_STATUS;
940: break;
1.20 nicm 941: case MODEKEYEDIT_ENTER:
1.25 nicm 942: if (*c->prompt_buffer != '\0')
1.1 nicm 943: status_prompt_add_history(c);
1.25 nicm 944: if (c->prompt_callbackfn(c->prompt_data, c->prompt_buffer) == 0)
945: status_prompt_clear(c);
946: break;
1.20 nicm 947: case MODEKEYEDIT_CANCEL:
1.12 nicm 948: if (c->prompt_callbackfn(c->prompt_data, NULL) == 0)
1.1 nicm 949: status_prompt_clear(c);
950: break;
1.20 nicm 951: case MODEKEY_OTHER:
1.1 nicm 952: if (key < 32 || key > 126)
953: break;
954: c->prompt_buffer = xrealloc(c->prompt_buffer, 1, size + 2);
955:
956: if (c->prompt_index == size) {
957: c->prompt_buffer[c->prompt_index++] = key;
958: c->prompt_buffer[c->prompt_index] = '\0';
959: } else {
960: memmove(c->prompt_buffer + c->prompt_index + 1,
961: c->prompt_buffer + c->prompt_index,
962: size + 1 - c->prompt_index);
963: c->prompt_buffer[c->prompt_index++] = key;
964: }
965:
966: if (c->prompt_flags & PROMPT_SINGLE) {
1.12 nicm 967: if (c->prompt_callbackfn(
1.1 nicm 968: c->prompt_data, c->prompt_buffer) == 0)
969: status_prompt_clear(c);
970: }
971:
972: c->flags |= CLIENT_STATUS;
973: break;
974: default:
975: break;
976: }
977: }
978:
979: /* Add line to the history. */
980: void
981: status_prompt_add_history(struct client *c)
982: {
983: if (server_locked)
984: return;
985:
986: if (ARRAY_LENGTH(&c->prompt_hdata) > 0 &&
987: strcmp(ARRAY_LAST(&c->prompt_hdata), c->prompt_buffer) == 0)
988: return;
989:
990: if (ARRAY_LENGTH(&c->prompt_hdata) == PROMPT_HISTORY) {
991: xfree(ARRAY_FIRST(&c->prompt_hdata));
992: ARRAY_REMOVE(&c->prompt_hdata, 0);
993: }
994:
995: ARRAY_ADD(&c->prompt_hdata, xstrdup(c->prompt_buffer));
996: }
997:
998: /* Complete word. */
999: char *
1000: status_prompt_complete(const char *s)
1001: {
1002: const struct cmd_entry **cmdent;
1003: const struct set_option_entry *optent;
1004: ARRAY_DECL(, const char *) list;
1005: char *prefix, *s2;
1.9 nicm 1006: u_int i;
1.1 nicm 1007: size_t j;
1008:
1009: if (*s == '\0')
1010: return (NULL);
1011:
1012: /* First, build a list of all the possible matches. */
1013: ARRAY_INIT(&list);
1014: for (cmdent = cmd_table; *cmdent != NULL; cmdent++) {
1015: if (strncmp((*cmdent)->name, s, strlen(s)) == 0)
1016: ARRAY_ADD(&list, (*cmdent)->name);
1017: }
1.9 nicm 1018: for (optent = set_option_table; optent->name != NULL; optent++) {
1.1 nicm 1019: if (strncmp(optent->name, s, strlen(s)) == 0)
1020: ARRAY_ADD(&list, optent->name);
1021: }
1.9 nicm 1022: for (optent = set_window_option_table; optent->name != NULL; optent++) {
1.1 nicm 1023: if (strncmp(optent->name, s, strlen(s)) == 0)
1024: ARRAY_ADD(&list, optent->name);
1025: }
1026:
1027: /* If none, bail now. */
1028: if (ARRAY_LENGTH(&list) == 0) {
1029: ARRAY_FREE(&list);
1030: return (NULL);
1031: }
1032:
1033: /* If an exact match, return it, with a trailing space. */
1034: if (ARRAY_LENGTH(&list) == 1) {
1035: xasprintf(&s2, "%s ", ARRAY_FIRST(&list));
1036: ARRAY_FREE(&list);
1037: return (s2);
1038: }
1039:
1040: /* Now loop through the list and find the longest common prefix. */
1041: prefix = xstrdup(ARRAY_FIRST(&list));
1042: for (i = 1; i < ARRAY_LENGTH(&list); i++) {
1043: s = ARRAY_ITEM(&list, i);
1044:
1045: j = strlen(s);
1046: if (j > strlen(prefix))
1047: j = strlen(prefix);
1048: for (; j > 0; j--) {
1049: if (prefix[j - 1] != s[j - 1])
1050: prefix[j - 1] = '\0';
1051: }
1052: }
1053:
1054: ARRAY_FREE(&list);
1055: return (prefix);
1056: }