1: /* $OpenBSD$ */
2:
3: /*
4: * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
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/ioctl.h>
21:
22: #include <netinet/in.h>
23:
24: #include <curses.h>
25: #include <errno.h>
26: #include <fcntl.h>
27: #include <resolv.h>
28: #include <stdlib.h>
29: #include <string.h>
30: #include <termios.h>
31: #include <unistd.h>
32:
33: #include "tmux.h"
34:
35: static int tty_log_fd = -1;
36:
37: static int tty_client_ready(struct client *, struct window_pane *);
38:
39: static void tty_set_italics(struct tty *);
40: static int tty_try_colour(struct tty *, int, const char *);
41: static void tty_force_cursor_colour(struct tty *, const char *);
42: static void tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int,
43: u_int);
44: static void tty_cursor_pane_unless_wrap(struct tty *,
45: const struct tty_ctx *, u_int, u_int);
46: static void tty_invalidate(struct tty *);
47: static void tty_colours(struct tty *, const struct grid_cell *);
48: static void tty_check_fg(struct tty *, const struct window_pane *,
49: struct grid_cell *);
50: static void tty_check_bg(struct tty *, const struct window_pane *,
51: struct grid_cell *);
52: static void tty_colours_fg(struct tty *, const struct grid_cell *);
53: static void tty_colours_bg(struct tty *, const struct grid_cell *);
54:
55: static void tty_region_pane(struct tty *, const struct tty_ctx *, u_int,
56: u_int);
57: static void tty_region(struct tty *, u_int, u_int);
58: static void tty_margin_pane(struct tty *, const struct tty_ctx *);
59: static void tty_margin(struct tty *, u_int, u_int);
60: static int tty_large_region(struct tty *, const struct tty_ctx *);
61: static int tty_fake_bce(const struct tty *, const struct window_pane *,
62: u_int);
63: static void tty_redraw_region(struct tty *, const struct tty_ctx *);
64: static void tty_emulate_repeat(struct tty *, enum tty_code_code,
65: enum tty_code_code, u_int);
66: static void tty_repeat_space(struct tty *, u_int);
67: static void tty_cell(struct tty *, const struct grid_cell *,
68: const struct window_pane *);
69: static void tty_default_colours(struct grid_cell *,
70: const struct window_pane *);
71: static void tty_default_attributes(struct tty *, const struct window_pane *,
72: u_int);
73:
74: #define tty_use_acs(tty) \
75: (tty_term_has((tty)->term, TTYC_ACSC) && !((tty)->flags & TTY_UTF8))
76: #define tty_use_margin(tty) \
77: ((tty)->term_type == TTY_VT420)
78:
79: #define tty_pane_full_width(tty, ctx) \
80: ((ctx)->xoff == 0 && screen_size_x((ctx)->wp->screen) >= (tty)->sx)
81:
82: void
83: tty_create_log(void)
84: {
85: char name[64];
86:
87: xsnprintf(name, sizeof name, "tmux-out-%ld.log", (long)getpid());
88:
89: tty_log_fd = open(name, O_WRONLY|O_CREAT|O_TRUNC, 0644);
90: if (tty_log_fd != -1 && fcntl(tty_log_fd, F_SETFD, FD_CLOEXEC) == -1)
91: fatal("fcntl failed");
92: }
93:
94: int
95: tty_init(struct tty *tty, struct client *c, int fd, char *term)
96: {
97: if (!isatty(fd))
98: return (-1);
99:
100: memset(tty, 0, sizeof *tty);
101:
102: if (term == NULL || *term == '\0')
103: tty->term_name = xstrdup("unknown");
104: else
105: tty->term_name = xstrdup(term);
106:
107: tty->fd = fd;
108: tty->client = c;
109:
110: tty->cstyle = 0;
111: tty->ccolour = xstrdup("");
112:
113: tty->flags = 0;
114:
115: tty->term_flags = 0;
116: tty->term_type = TTY_UNKNOWN;
117:
118: return (0);
119: }
120:
121: int
122: tty_resize(struct tty *tty)
123: {
124: struct client *c = tty->client;
125: struct winsize ws;
126: u_int sx, sy;
127:
128: if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
129: sx = ws.ws_col;
130: if (sx == 0)
131: sx = 80;
132: sy = ws.ws_row;
133: if (sy == 0)
134: sy = 24;
135: } else {
136: sx = 80;
137: sy = 24;
138: }
139: log_debug("%s: %s now %ux%u", __func__, c->name, sx, sy);
140:
141: if (!tty_set_size(tty, sx, sy))
142: return (0);
143: tty_invalidate(tty);
144: return (1);
145: }
146:
147: int
148: tty_set_size(struct tty *tty, u_int sx, u_int sy)
149: {
150: if (sx == tty->sx && sy == tty->sy)
151: return (0);
152: tty->sx = sx;
153: tty->sy = sy;
154: return (1);
155: }
156:
157: static void
158: tty_read_callback(__unused int fd, __unused short events, void *data)
159: {
160: struct tty *tty = data;
161: struct client *c = tty->client;
162: size_t size = EVBUFFER_LENGTH(tty->in);
163: int nread;
164:
165: nread = evbuffer_read(tty->in, tty->fd, -1);
166: if (nread == -1)
167: return;
168: log_debug("%s: read %d bytes (already %zu)", c->name, nread, size);
169:
170: while (tty_keys_next(tty))
171: ;
172: }
173:
174: static void
175: tty_write_callback(__unused int fd, __unused short events, void *data)
176: {
177: struct tty *tty = data;
178: struct client *c = tty->client;
179: size_t size = EVBUFFER_LENGTH(tty->out);
180: int nwrite;
181:
182: nwrite = evbuffer_write(tty->out, tty->fd);
183: if (nwrite == -1)
184: return;
185: log_debug("%s: wrote %d bytes (of %zu)", c->name, nwrite, size);
186:
187: if (EVBUFFER_LENGTH(tty->out) != 0)
188: event_add(&tty->event_out, NULL);
189: }
190:
191: int
192: tty_open(struct tty *tty, char **cause)
193: {
194: tty->term = tty_term_find(tty->term_name, tty->fd, cause);
195: if (tty->term == NULL) {
196: tty_close(tty);
197: return (-1);
198: }
199: tty->flags |= TTY_OPENED;
200:
201: tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE);
202:
203: event_set(&tty->event_in, tty->fd, EV_PERSIST|EV_READ,
204: tty_read_callback, tty);
205: tty->in = evbuffer_new();
206:
207: event_set(&tty->event_out, tty->fd, EV_WRITE, tty_write_callback, tty);
208: tty->out = evbuffer_new();
209:
210: tty_start_tty(tty);
211:
212: tty_keys_build(tty);
213:
214: return (0);
215: }
216:
217: void
218: tty_start_tty(struct tty *tty)
219: {
220: struct termios tio;
221:
222: if (tty->fd != -1 && tcgetattr(tty->fd, &tty->tio) == 0) {
223: setblocking(tty->fd, 0);
224: event_add(&tty->event_in, NULL);
225:
226: memcpy(&tio, &tty->tio, sizeof tio);
227: tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
228: tio.c_iflag |= IGNBRK;
229: tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
230: tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
231: ECHOPRT|ECHOKE|ISIG);
232: tio.c_cc[VMIN] = 1;
233: tio.c_cc[VTIME] = 0;
234: if (tcsetattr(tty->fd, TCSANOW, &tio) == 0)
235: tcflush(tty->fd, TCIOFLUSH);
236: }
237:
238: tty_putcode(tty, TTYC_SMCUP);
239:
240: tty_putcode(tty, TTYC_SMKX);
241: if (tty_use_acs(tty))
242: tty_putcode(tty, TTYC_ENACS);
243: tty_putcode(tty, TTYC_CLEAR);
244:
245: tty_putcode(tty, TTYC_CNORM);
246: if (tty_term_has(tty->term, TTYC_KMOUS))
247: tty_puts(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
248:
249: if (tty_term_flag(tty->term, TTYC_XT)) {
250: if (options_get_number(global_options, "focus-events")) {
251: tty->flags |= TTY_FOCUS;
252: tty_puts(tty, "\033[?1004h");
253: }
254: tty_puts(tty, "\033[c");
255: }
256:
257: tty->flags |= TTY_STARTED;
258: tty_invalidate(tty);
259:
260: tty_force_cursor_colour(tty, "");
261:
262: tty->mouse_drag_flag = 0;
263: tty->mouse_drag_update = NULL;
264: tty->mouse_drag_release = NULL;
265: }
266:
267: void
268: tty_stop_tty(struct tty *tty)
269: {
270: struct winsize ws;
271:
272: if (!(tty->flags & TTY_STARTED))
273: return;
274: tty->flags &= ~TTY_STARTED;
275:
276: event_del(&tty->event_in);
277: event_del(&tty->event_out);
278:
279: /*
280: * Be flexible about error handling and try not kill the server just
281: * because the fd is invalid. Things like ssh -t can easily leave us
282: * with a dead tty.
283: */
284: if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
285: return;
286: if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
287: return;
288:
289: tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
290: if (tty_use_acs(tty))
291: tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
292: tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
293: tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
294: tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
295: if (tty_term_has(tty->term, TTYC_SS) && tty->cstyle != 0) {
296: if (tty_term_has(tty->term, TTYC_SE))
297: tty_raw(tty, tty_term_string(tty->term, TTYC_SE));
298: else
299: tty_raw(tty, tty_term_string1(tty->term, TTYC_SS, 0));
300: }
301: if (tty->mode & MODE_BRACKETPASTE)
302: tty_raw(tty, "\033[?2004l");
303: tty_raw(tty, tty_term_string(tty->term, TTYC_CR));
304:
305: tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
306: if (tty_term_has(tty->term, TTYC_KMOUS))
307: tty_raw(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
308:
309: if (tty_term_flag(tty->term, TTYC_XT)) {
310: if (tty->flags & TTY_FOCUS) {
311: tty->flags &= ~TTY_FOCUS;
312: tty_raw(tty, "\033[?1004l");
313: }
314: }
315:
316: if (tty_use_margin(tty))
317: tty_raw(tty, "\033[?69l"); /* DECLRMM */
318: tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
319:
320: setblocking(tty->fd, 1);
321: }
322:
323: void
324: tty_close(struct tty *tty)
325: {
326: if (event_initialized(&tty->key_timer))
327: evtimer_del(&tty->key_timer);
328: tty_stop_tty(tty);
329:
330: if (tty->flags & TTY_OPENED) {
331: evbuffer_free(tty->in);
332: event_del(&tty->event_in);
333: evbuffer_free(tty->out);
334: event_del(&tty->event_out);
335:
336: tty_term_free(tty->term);
337: tty_keys_free(tty);
338:
339: tty->flags &= ~TTY_OPENED;
340: }
341:
342: if (tty->fd != -1) {
343: close(tty->fd);
344: tty->fd = -1;
345: }
346: }
347:
348: void
349: tty_free(struct tty *tty)
350: {
351: tty_close(tty);
352:
353: free(tty->ccolour);
354: free(tty->term_name);
355: }
356:
357: void
358: tty_set_type(struct tty *tty, int type)
359: {
360: tty->term_type = type;
361:
362: if (tty_use_margin(tty))
363: tty_puts(tty, "\033[?69h"); /* DECLRMM */
364: }
365:
366: void
367: tty_raw(struct tty *tty, const char *s)
368: {
369: ssize_t n, slen;
370: u_int i;
371:
372: slen = strlen(s);
373: for (i = 0; i < 5; i++) {
374: n = write(tty->fd, s, slen);
375: if (n >= 0) {
376: s += n;
377: slen -= n;
378: if (slen == 0)
379: break;
380: } else if (n == -1 && errno != EAGAIN)
381: break;
382: usleep(100);
383: }
384: }
385:
386: void
387: tty_putcode(struct tty *tty, enum tty_code_code code)
388: {
389: tty_puts(tty, tty_term_string(tty->term, code));
390: }
391:
392: void
393: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
394: {
395: if (a < 0)
396: return;
397: tty_puts(tty, tty_term_string1(tty->term, code, a));
398: }
399:
400: void
401: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
402: {
403: if (a < 0 || b < 0)
404: return;
405: tty_puts(tty, tty_term_string2(tty->term, code, a, b));
406: }
407:
408: void
409: tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a)
410: {
411: if (a != NULL)
412: tty_puts(tty, tty_term_ptr1(tty->term, code, a));
413: }
414:
415: void
416: tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a,
417: const void *b)
418: {
419: if (a != NULL && b != NULL)
420: tty_puts(tty, tty_term_ptr2(tty->term, code, a, b));
421: }
422:
423: static void
424: tty_add(struct tty *tty, const char *buf, size_t len)
425: {
426: struct client *c = tty->client;
427:
428: evbuffer_add(tty->out, buf, len);
429: log_debug("%s: %.*s", c->name, (int)len, (const char *)buf);
430: tty->written += len;
431:
432: if (tty_log_fd != -1)
433: write(tty_log_fd, buf, len);
434: if (tty->flags & TTY_STARTED)
435: event_add(&tty->event_out, NULL);
436: }
437:
438: void
439: tty_puts(struct tty *tty, const char *s)
440: {
441: if (*s != '\0')
442: tty_add(tty, s, strlen(s));
443: }
444:
445: void
446: tty_putc(struct tty *tty, u_char ch)
447: {
448: const char *acs;
449:
450: if (tty->cell.attr & GRID_ATTR_CHARSET) {
451: acs = tty_acs_get(tty, ch);
452: if (acs != NULL)
453: tty_add(tty, acs, strlen(acs));
454: else
455: tty_add(tty, &ch, 1);
456: } else
457: tty_add(tty, &ch, 1);
458:
459: if (ch >= 0x20 && ch != 0x7f) {
460: if (tty->cx >= tty->sx) {
461: tty->cx = 1;
462: if (tty->cy != tty->rlower)
463: tty->cy++;
464:
465: /*
466: * On !xenl terminals, force the cursor position to
467: * where we think it should be after a line wrap - this
468: * means it works on sensible terminals as well.
469: */
470: if (tty->term->flags & TERM_EARLYWRAP)
471: tty_putcode2(tty, TTYC_CUP, tty->cy, tty->cx);
472: } else
473: tty->cx++;
474: }
475: }
476:
477: void
478: tty_putn(struct tty *tty, const void *buf, size_t len, u_int width)
479: {
480: tty_add(tty, buf, len);
481: if (tty->cx + width > tty->sx)
482: tty->cx = tty->cy = UINT_MAX;
483: else
484: tty->cx += width;
485: }
486:
487: static void
488: tty_set_italics(struct tty *tty)
489: {
490: const char *s;
491:
492: if (tty_term_has(tty->term, TTYC_SITM)) {
493: s = options_get_string(global_options, "default-terminal");
494: if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) {
495: tty_putcode(tty, TTYC_SITM);
496: return;
497: }
498: }
499: tty_putcode(tty, TTYC_SMSO);
500: }
501:
502: void
503: tty_set_title(struct tty *tty, const char *title)
504: {
505: if (!tty_term_has(tty->term, TTYC_TSL) ||
506: !tty_term_has(tty->term, TTYC_FSL))
507: return;
508:
509: tty_putcode(tty, TTYC_TSL);
510: tty_puts(tty, title);
511: tty_putcode(tty, TTYC_FSL);
512: }
513:
514: static void
515: tty_force_cursor_colour(struct tty *tty, const char *ccolour)
516: {
517: if (*ccolour == '\0')
518: tty_putcode(tty, TTYC_CR);
519: else
520: tty_putcode_ptr1(tty, TTYC_CS, ccolour);
521: free(tty->ccolour);
522: tty->ccolour = xstrdup(ccolour);
523: }
524:
525: void
526: tty_update_mode(struct tty *tty, int mode, struct screen *s)
527: {
528: int changed;
529:
530: if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0)
531: tty_force_cursor_colour(tty, s->ccolour);
532:
533: if (tty->flags & TTY_NOCURSOR)
534: mode &= ~MODE_CURSOR;
535:
536: changed = mode ^ tty->mode;
537: if (changed & MODE_BLINKING) {
538: if (tty_term_has(tty->term, TTYC_CVVIS))
539: tty_putcode(tty, TTYC_CVVIS);
540: else
541: tty_putcode(tty, TTYC_CNORM);
542: changed |= MODE_CURSOR;
543: }
544: if (changed & MODE_CURSOR) {
545: if (mode & MODE_CURSOR)
546: tty_putcode(tty, TTYC_CNORM);
547: else
548: tty_putcode(tty, TTYC_CIVIS);
549: }
550: if (s != NULL && tty->cstyle != s->cstyle) {
551: if (tty_term_has(tty->term, TTYC_SS)) {
552: if (s->cstyle == 0 &&
553: tty_term_has(tty->term, TTYC_SE))
554: tty_putcode(tty, TTYC_SE);
555: else
556: tty_putcode1(tty, TTYC_SS, s->cstyle);
557: }
558: tty->cstyle = s->cstyle;
559: }
560: if (changed & ALL_MOUSE_MODES) {
561: if (mode & ALL_MOUSE_MODES) {
562: /*
563: * Enable the SGR (1006) extension unconditionally, as
564: * it is safe from misinterpretation.
565: */
566: tty_puts(tty, "\033[?1006h");
567: if (mode & MODE_MOUSE_ALL)
568: tty_puts(tty, "\033[?1003h");
569: else if (mode & MODE_MOUSE_BUTTON)
570: tty_puts(tty, "\033[?1002h");
571: else if (mode & MODE_MOUSE_STANDARD)
572: tty_puts(tty, "\033[?1000h");
573: } else {
574: if (tty->mode & MODE_MOUSE_ALL)
575: tty_puts(tty, "\033[?1003l");
576: else if (tty->mode & MODE_MOUSE_BUTTON)
577: tty_puts(tty, "\033[?1002l");
578: else if (tty->mode & MODE_MOUSE_STANDARD)
579: tty_puts(tty, "\033[?1000l");
580: tty_puts(tty, "\033[?1006l");
581: }
582: }
583: if (changed & MODE_BRACKETPASTE) {
584: if (mode & MODE_BRACKETPASTE)
585: tty_puts(tty, "\033[?2004h");
586: else
587: tty_puts(tty, "\033[?2004l");
588: }
589: tty->mode = mode;
590: }
591:
592: static void
593: tty_emulate_repeat(struct tty *tty, enum tty_code_code code,
594: enum tty_code_code code1, u_int n)
595: {
596: if (tty_term_has(tty->term, code))
597: tty_putcode1(tty, code, n);
598: else {
599: while (n-- > 0)
600: tty_putcode(tty, code1);
601: }
602: }
603:
604: static void
605: tty_repeat_space(struct tty *tty, u_int n)
606: {
607: static char s[500];
608:
609: if (*s != ' ')
610: memset(s, ' ', sizeof s);
611:
612: while (n > sizeof s) {
613: tty_putn(tty, s, sizeof s, sizeof s);
614: n -= sizeof s;
615: }
616: if (n != 0)
617: tty_putn(tty, s, n, n);
618: }
619:
620: /*
621: * Is the region large enough to be worth redrawing once later rather than
622: * probably several times now? Currently yes if it is more than 50% of the
623: * pane.
624: */
625: static int
626: tty_large_region(__unused struct tty *tty, const struct tty_ctx *ctx)
627: {
628: struct window_pane *wp = ctx->wp;
629:
630: return (ctx->orlower - ctx->orupper >= screen_size_y(wp->screen) / 2);
631: }
632:
633: /*
634: * Return if BCE is needed but the terminal doesn't have it - it'll need to be
635: * emulated.
636: */
637: static int
638: tty_fake_bce(const struct tty *tty, const struct window_pane *wp, u_int bg)
639: {
640: struct grid_cell gc;
641:
642: if (tty_term_flag(tty->term, TTYC_BCE))
643: return (0);
644:
645: memcpy(&gc, &grid_default_cell, sizeof gc);
646: if (wp != NULL)
647: tty_default_colours(&gc, wp);
648:
649: if (bg != 8 || gc.bg != 8)
650: return (1);
651: return (0);
652: }
653:
654: /*
655: * Redraw scroll region using data from screen (already updated). Used when
656: * CSR not supported, or window is a pane that doesn't take up the full
657: * width of the terminal.
658: */
659: static void
660: tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
661: {
662: struct window_pane *wp = ctx->wp;
663: struct screen *s = wp->screen;
664: u_int i;
665:
666: /*
667: * If region is large, schedule a window redraw. In most cases this is
668: * likely to be followed by some more scrolling.
669: */
670: if (tty_large_region(tty, ctx)) {
671: wp->flags |= PANE_REDRAW;
672: return;
673: }
674:
675: if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
676: for (i = ctx->ocy; i < screen_size_y(s); i++)
677: tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
678: } else {
679: for (i = ctx->orupper; i <= ctx->orlower; i++)
680: tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
681: }
682: }
683:
684: void
685: tty_draw_pane(struct tty *tty, const struct window_pane *wp, u_int py, u_int ox,
686: u_int oy)
687: {
688: tty_draw_line(tty, wp, wp->screen, py, ox, oy);
689: }
690:
691: void
692: tty_draw_line(struct tty *tty, const struct window_pane *wp,
693: struct screen *s, u_int py, u_int ox, u_int oy)
694: {
695: struct grid_cell gc, last;
696: u_int i, j, sx, width;
697: int flags, cleared = 0;
698: char buf[512];
699: size_t len;
700:
701: flags = (tty->flags & TTY_NOCURSOR);
702: tty->flags |= TTY_NOCURSOR;
703: tty_update_mode(tty, tty->mode, s);
704:
705: tty_region_off(tty);
706: tty_margin_off(tty);
707:
708: sx = screen_size_x(s);
709: if (sx > s->grid->linedata[s->grid->hsize + py].cellused)
710: sx = s->grid->linedata[s->grid->hsize + py].cellused;
711: if (sx > tty->sx)
712: sx = tty->sx;
713:
714: if (screen_size_x(s) < tty->sx &&
715: ox == 0 &&
716: sx != screen_size_x(s) &&
717: tty_term_has(tty->term, TTYC_EL1) &&
718: !tty_fake_bce(tty, wp, 8)) {
719: tty_default_attributes(tty, wp, 8);
720: tty_cursor(tty, screen_size_x(s) - 1, oy + py);
721: tty_putcode(tty, TTYC_EL1);
722: cleared = 1;
723: }
724: if (sx != 0)
725: tty_cursor(tty, ox, oy + py);
726:
727: memcpy(&last, &grid_default_cell, sizeof last);
728: len = 0;
729: width = 0;
730:
731: for (i = 0; i < sx; i++) {
732: grid_view_get_cell(s->grid, i, py, &gc);
733: if (len != 0 &&
734: (((~tty->flags & TTY_UTF8) &&
735: (gc.data.size != 1 ||
736: *gc.data.data >= 0x7f ||
737: gc.data.width != 1)) ||
738: (gc.attr & GRID_ATTR_CHARSET) ||
739: gc.flags != last.flags ||
740: gc.attr != last.attr ||
741: gc.fg != last.fg ||
742: gc.bg != last.bg ||
743: (sizeof buf) - len < gc.data.size)) {
744: tty_attributes(tty, &last, wp);
745: tty_putn(tty, buf, len, width);
746:
747: len = 0;
748: width = 0;
749: }
750:
751: if (gc.flags & GRID_FLAG_SELECTED)
752: screen_select_cell(s, &last, &gc);
753: else
754: memcpy(&last, &gc, sizeof last);
755: if (((~tty->flags & TTY_UTF8) &&
756: (gc.data.size != 1 ||
757: *gc.data.data >= 0x7f ||
758: gc.data.width != 1)) ||
759: (gc.attr & GRID_ATTR_CHARSET)) {
760: tty_attributes(tty, &last, wp);
761: if (~tty->flags & TTY_UTF8) {
762: for (j = 0; j < gc.data.width; j++)
763: tty_putc(tty, '_');
764: } else {
765: for (j = 0; j < gc.data.size; j++)
766: tty_putc(tty, gc.data.data[j]);
767: }
768: } else {
769: memcpy(buf + len, gc.data.data, gc.data.size);
770: len += gc.data.size;
771: width += gc.data.width;
772: }
773: }
774: if (len != 0) {
775: tty_attributes(tty, &last, wp);
776: tty_putn(tty, buf, len, width);
777: }
778:
779: if (!cleared && sx < tty->sx) {
780: tty_default_attributes(tty, wp, 8);
781: tty_cursor(tty, ox + sx, oy + py);
782: if (sx != screen_size_x(s) &&
783: ox + screen_size_x(s) >= tty->sx &&
784: tty_term_has(tty->term, TTYC_EL) &&
785: !tty_fake_bce(tty, wp, 8))
786: tty_putcode(tty, TTYC_EL);
787: else
788: tty_repeat_space(tty, screen_size_x(s) - sx);
789: }
790:
791: tty->flags = (tty->flags & ~TTY_NOCURSOR) | flags;
792: tty_update_mode(tty, tty->mode, s);
793: }
794:
795: static int
796: tty_client_ready(struct client *c, struct window_pane *wp)
797: {
798: if (c->session == NULL || c->tty.term == NULL)
799: return (0);
800: if (c->flags & (CLIENT_REDRAW|CLIENT_SUSPENDED))
801: return (0);
802: if (c->tty.flags & TTY_FREEZE)
803: return (0);
804: if (c->session->curw->window != wp->window)
805: return (0);
806: return (1);
807: }
808:
809: void
810: tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *),
811: struct tty_ctx *ctx)
812: {
813: struct window_pane *wp = ctx->wp;
814: struct client *c;
815:
816: /* wp can be NULL if updating the screen but not the terminal. */
817: if (wp == NULL)
818: return;
819:
820: if ((wp->flags & (PANE_REDRAW|PANE_DROP)) || !window_pane_visible(wp))
821: return;
822:
823: TAILQ_FOREACH(c, &clients, entry) {
824: if (!tty_client_ready(c, wp))
825: continue;
826:
827: ctx->xoff = wp->xoff;
828: ctx->yoff = wp->yoff;
829: if (status_at_line(c) == 0)
830: ctx->yoff++;
831:
832: cmdfn(&c->tty, ctx);
833: }
834: }
835:
836: void
837: tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
838: {
839: struct window_pane *wp = ctx->wp;
840:
841: if (!tty_pane_full_width(tty, ctx) ||
842: tty_fake_bce(tty, wp, ctx->bg) ||
843: (!tty_term_has(tty->term, TTYC_ICH) &&
844: !tty_term_has(tty->term, TTYC_ICH1))) {
845: tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
846: return;
847: }
848:
849: tty_default_attributes(tty, wp, ctx->bg);
850:
851: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
852:
853: tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
854: }
855:
856: void
857: tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
858: {
859: struct window_pane *wp = ctx->wp;
860:
861: if (!tty_pane_full_width(tty, ctx) ||
862: tty_fake_bce(tty, wp, ctx->bg) ||
863: (!tty_term_has(tty->term, TTYC_DCH) &&
864: !tty_term_has(tty->term, TTYC_DCH1))) {
865: tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
866: return;
867: }
868:
869: tty_default_attributes(tty, wp, ctx->bg);
870:
871: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
872:
873: tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
874: }
875:
876: void
877: tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx)
878: {
879: tty_attributes(tty, &grid_default_cell, ctx->wp);
880:
881: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
882:
883: if (tty_term_has(tty->term, TTYC_ECH) &&
884: !tty_fake_bce(tty, ctx->wp, 8))
885: tty_putcode1(tty, TTYC_ECH, ctx->num);
886: else
887: tty_repeat_space(tty, ctx->num);
888: }
889:
890: void
891: tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
892: {
893: if (!tty_pane_full_width(tty, ctx) ||
894: tty_fake_bce(tty, ctx->wp, ctx->bg) ||
895: !tty_term_has(tty->term, TTYC_CSR) ||
896: !tty_term_has(tty->term, TTYC_IL1)) {
897: tty_redraw_region(tty, ctx);
898: return;
899: }
900:
901: tty_default_attributes(tty, ctx->wp, ctx->bg);
902:
903: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
904: tty_margin_off(tty);
905: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
906:
907: tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
908: }
909:
910: void
911: tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
912: {
913: if (!tty_pane_full_width(tty, ctx) ||
914: tty_fake_bce(tty, ctx->wp, ctx->bg) ||
915: !tty_term_has(tty->term, TTYC_CSR) ||
916: !tty_term_has(tty->term, TTYC_DL1)) {
917: tty_redraw_region(tty, ctx);
918: return;
919: }
920:
921: tty_default_attributes(tty, ctx->wp, ctx->bg);
922:
923: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
924: tty_margin_off(tty);
925: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
926:
927: tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
928: }
929:
930: void
931: tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
932: {
933: struct window_pane *wp = ctx->wp;
934: struct screen *s = wp->screen;
935: u_int sx = screen_size_x(s);
936:
937: tty_default_attributes(tty, wp, ctx->bg);
938:
939: tty_cursor_pane(tty, ctx, 0, ctx->ocy);
940:
941: if (tty_pane_full_width(tty, ctx) &&
942: !tty_fake_bce(tty, wp, ctx->bg) &&
943: tty_term_has(tty->term, TTYC_EL))
944: tty_putcode(tty, TTYC_EL);
945: else
946: tty_repeat_space(tty, sx);
947: }
948:
949: void
950: tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
951: {
952: struct window_pane *wp = ctx->wp;
953: struct screen *s = wp->screen;
954: u_int sx = screen_size_x(s);
955:
956: tty_default_attributes(tty, wp, ctx->bg);
957:
958: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
959:
960: if (tty_pane_full_width(tty, ctx) &&
961: tty_term_has(tty->term, TTYC_EL) &&
962: !tty_fake_bce(tty, wp, ctx->bg))
963: tty_putcode(tty, TTYC_EL);
964: else
965: tty_repeat_space(tty, sx - ctx->ocx);
966: }
967:
968: void
969: tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
970: {
971: struct window_pane *wp = ctx->wp;
972:
973: tty_default_attributes(tty, wp, ctx->bg);
974:
975: if (ctx->xoff == 0 &&
976: tty_term_has(tty->term, TTYC_EL1) &&
977: !tty_fake_bce(tty, ctx->wp, ctx->bg)) {
978: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
979: tty_putcode(tty, TTYC_EL1);
980: } else {
981: tty_cursor_pane(tty, ctx, 0, ctx->ocy);
982: tty_repeat_space(tty, ctx->ocx + 1);
983: }
984: }
985:
986: void
987: tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
988: {
989: if (ctx->ocy != ctx->orupper)
990: return;
991:
992: if (!tty_pane_full_width(tty, ctx) ||
993: tty_fake_bce(tty, ctx->wp, 8) ||
994: !tty_term_has(tty->term, TTYC_CSR) ||
995: !tty_term_has(tty->term, TTYC_RI)) {
996: tty_redraw_region(tty, ctx);
997: return;
998: }
999:
1000: tty_attributes(tty, &grid_default_cell, ctx->wp);
1001:
1002: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1003: tty_margin_off(tty);
1004: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
1005:
1006: tty_putcode(tty, TTYC_RI);
1007: }
1008:
1009: void
1010: tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
1011: {
1012: struct window_pane *wp = ctx->wp;
1013:
1014: if (ctx->ocy != ctx->orlower)
1015: return;
1016:
1017: if ((!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) ||
1018: tty_fake_bce(tty, wp, 8) ||
1019: !tty_term_has(tty->term, TTYC_CSR)) {
1020: tty_redraw_region(tty, ctx);
1021: return;
1022: }
1023:
1024: tty_attributes(tty, &grid_default_cell, wp);
1025:
1026: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1027: tty_margin_pane(tty, ctx);
1028:
1029: /*
1030: * If we want to wrap a pane, the cursor needs to be exactly on the
1031: * right of the region. But if the pane isn't on the right, it may be
1032: * off the edge - if so, move the cursor back to the right.
1033: */
1034: if (ctx->xoff + ctx->ocx > tty->rright)
1035: tty_cursor(tty, tty->rright, ctx->yoff + ctx->ocy);
1036: else
1037: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1038:
1039: tty_putc(tty, '\n');
1040: }
1041:
1042: void
1043: tty_cmd_scrollup(struct tty *tty, const struct tty_ctx *ctx)
1044: {
1045: struct window_pane *wp = ctx->wp;
1046: u_int i;
1047:
1048: if ((!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) ||
1049: tty_fake_bce(tty, wp, 8) ||
1050: !tty_term_has(tty->term, TTYC_CSR)) {
1051: tty_redraw_region(tty, ctx);
1052: return;
1053: }
1054:
1055: tty_attributes(tty, &grid_default_cell, wp);
1056:
1057: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1058: tty_margin_pane(tty, ctx);
1059:
1060: if (ctx->num == 1 || !tty_term_has(tty->term, TTYC_INDN)) {
1061: tty_cursor(tty, tty->rright, tty->rlower);
1062: for (i = 0; i < ctx->num; i++)
1063: tty_putc(tty, '\n');
1064: } else
1065: tty_putcode1(tty, TTYC_INDN, ctx->num);
1066: }
1067:
1068: void
1069: tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
1070: {
1071: struct window_pane *wp = ctx->wp;
1072: struct screen *s = wp->screen;
1073: u_int i, j;
1074: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1075:
1076: tty_default_attributes(tty, wp, ctx->bg);
1077:
1078: tty_region_pane(tty, ctx, 0, sy - 1);
1079: tty_margin_off(tty);
1080:
1081: if (tty_pane_full_width(tty, ctx) &&
1082: ctx->yoff + wp->sy >= tty->sy - 1 &&
1083: status_at_line(tty->client) <= 0 &&
1084: tty_term_has(tty->term, TTYC_ED)) {
1085: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1086: tty_putcode(tty, TTYC_ED);
1087: } else if (tty_pane_full_width(tty, ctx) &&
1088: tty_term_has(tty->term, TTYC_EL) &&
1089: !tty_fake_bce(tty, wp, ctx->bg)) {
1090: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1091: tty_putcode(tty, TTYC_EL);
1092: if (ctx->ocy != sy - 1) {
1093: tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
1094: for (i = ctx->ocy + 1; i < sy; i++) {
1095: tty_putcode(tty, TTYC_EL);
1096: if (i == sy - 1)
1097: continue;
1098: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
1099: tty->cy++;
1100: }
1101: }
1102: } else {
1103: tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1104: tty_repeat_space(tty, sx - ctx->ocx);
1105: for (j = ctx->ocy + 1; j < sy; j++) {
1106: tty_cursor_pane(tty, ctx, 0, j);
1107: tty_repeat_space(tty, sx);
1108: }
1109: }
1110: }
1111:
1112: void
1113: tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
1114: {
1115: struct window_pane *wp = ctx->wp;
1116: struct screen *s = wp->screen;
1117: u_int i, j;
1118: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1119:
1120: tty_default_attributes(tty, wp, ctx->bg);
1121:
1122: tty_region_pane(tty, ctx, 0, sy - 1);
1123: tty_margin_off(tty);
1124:
1125: if (tty_pane_full_width(tty, ctx) &&
1126: tty_term_has(tty->term, TTYC_EL) &&
1127: !tty_fake_bce(tty, wp, ctx->bg)) {
1128: tty_cursor_pane(tty, ctx, 0, 0);
1129: for (i = 0; i < ctx->ocy; i++) {
1130: tty_putcode(tty, TTYC_EL);
1131: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
1132: tty->cy++;
1133: }
1134: } else {
1135: tty_cursor_pane(tty, ctx, 0, 0);
1136: for (j = 0; j < ctx->ocy; j++) {
1137: tty_cursor_pane(tty, ctx, 0, j);
1138: tty_repeat_space(tty, sx);
1139: }
1140: }
1141: tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1142: tty_repeat_space(tty, ctx->ocx + 1);
1143: }
1144:
1145: void
1146: tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
1147: {
1148: struct window_pane *wp = ctx->wp;
1149: struct screen *s = wp->screen;
1150: u_int i, j;
1151: u_int sx = screen_size_x(s), sy = screen_size_y(s);
1152:
1153: tty_default_attributes(tty, wp, ctx->bg);
1154:
1155: tty_region_pane(tty, ctx, 0, sy - 1);
1156: tty_margin_off(tty);
1157:
1158: if (tty_pane_full_width(tty, ctx) &&
1159: status_at_line(tty->client) <= 0 &&
1160: tty_term_has(tty->term, TTYC_ED)) {
1161: tty_cursor_pane(tty, ctx, 0, 0);
1162: tty_putcode(tty, TTYC_ED);
1163: } else if (tty_pane_full_width(tty, ctx) &&
1164: tty_term_has(tty->term, TTYC_EL) &&
1165: !tty_fake_bce(tty, wp, ctx->bg)) {
1166: tty_cursor_pane(tty, ctx, 0, 0);
1167: for (i = 0; i < sy; i++) {
1168: tty_putcode(tty, TTYC_EL);
1169: if (i != sy - 1) {
1170: tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
1171: tty->cy++;
1172: }
1173: }
1174: } else {
1175: tty_cursor_pane(tty, ctx, 0, 0);
1176: for (j = 0; j < sy; j++) {
1177: tty_cursor_pane(tty, ctx, 0, j);
1178: tty_repeat_space(tty, sx);
1179: }
1180: }
1181: }
1182:
1183: void
1184: tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
1185: {
1186: struct window_pane *wp = ctx->wp;
1187: struct screen *s = wp->screen;
1188: u_int i, j;
1189:
1190: tty_attributes(tty, &grid_default_cell, wp);
1191:
1192: tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1193: tty_margin_off(tty);
1194:
1195: for (j = 0; j < screen_size_y(s); j++) {
1196: tty_cursor_pane(tty, ctx, 0, j);
1197: for (i = 0; i < screen_size_x(s); i++)
1198: tty_putc(tty, 'E');
1199: }
1200: }
1201:
1202: void
1203: tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
1204: {
1205: if (ctx->xoff + ctx->ocx > tty->sx - 1 && ctx->ocy == ctx->orlower) {
1206: if (tty_pane_full_width(tty, ctx))
1207: tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1208: else
1209: tty_margin_off(tty);
1210: }
1211:
1212: tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy);
1213:
1214: tty_cell(tty, ctx->cell, ctx->wp);
1215: }
1216:
1217: void
1218: tty_cmd_cells(struct tty *tty, const struct tty_ctx *ctx)
1219: {
1220: tty_cursor_pane_unless_wrap(tty, ctx, ctx->ocx, ctx->ocy);
1221:
1222: tty_attributes(tty, ctx->cell, ctx->wp);
1223: tty_putn(tty, ctx->ptr, ctx->num, ctx->num);
1224: }
1225:
1226: void
1227: tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx)
1228: {
1229: char *buf;
1230: size_t off;
1231:
1232: if (!tty_term_has(tty->term, TTYC_MS))
1233: return;
1234:
1235: off = 4 * ((ctx->num + 2) / 3) + 1; /* storage for base64 */
1236: buf = xmalloc(off);
1237:
1238: b64_ntop(ctx->ptr, ctx->num, buf, off);
1239: tty_putcode_ptr2(tty, TTYC_MS, "", buf);
1240:
1241: free(buf);
1242: }
1243:
1244: void
1245: tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
1246: {
1247: tty_add(tty, ctx->ptr, ctx->num);
1248: tty_invalidate(tty);
1249: }
1250:
1251: static void
1252: tty_cell(struct tty *tty, const struct grid_cell *gc,
1253: const struct window_pane *wp)
1254: {
1255: u_int i;
1256:
1257: /* Skip last character if terminal is stupid. */
1258: if ((tty->term->flags & TERM_EARLYWRAP) &&
1259: tty->cy == tty->sy - 1 &&
1260: tty->cx == tty->sx - 1)
1261: return;
1262:
1263: /* If this is a padding character, do nothing. */
1264: if (gc->flags & GRID_FLAG_PADDING)
1265: return;
1266:
1267: /* Set the attributes. */
1268: tty_attributes(tty, gc, wp);
1269:
1270: /* Get the cell and if ASCII write with putc to do ACS translation. */
1271: if (gc->data.size == 1) {
1272: if (*gc->data.data < 0x20 || *gc->data.data == 0x7f)
1273: return;
1274: tty_putc(tty, *gc->data.data);
1275: return;
1276: }
1277:
1278: /* If not UTF-8, write _. */
1279: if (!(tty->flags & TTY_UTF8)) {
1280: for (i = 0; i < gc->data.width; i++)
1281: tty_putc(tty, '_');
1282: return;
1283: }
1284:
1285: /* Write the data. */
1286: tty_putn(tty, gc->data.data, gc->data.size, gc->data.width);
1287: }
1288:
1289: void
1290: tty_reset(struct tty *tty)
1291: {
1292: struct grid_cell *gc = &tty->cell;
1293:
1294: if (!grid_cells_equal(gc, &grid_default_cell)) {
1295: if ((gc->attr & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1296: tty_putcode(tty, TTYC_RMACS);
1297: tty_putcode(tty, TTYC_SGR0);
1298: memcpy(gc, &grid_default_cell, sizeof *gc);
1299: }
1300:
1301: memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell);
1302: tty->last_wp = -1;
1303: }
1304:
1305: static void
1306: tty_invalidate(struct tty *tty)
1307: {
1308: memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
1309:
1310: memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell);
1311: tty->last_wp = -1;
1312:
1313: tty->cx = tty->cy = UINT_MAX;
1314:
1315: tty->rupper = tty->rleft = UINT_MAX;
1316: tty->rlower = tty->rright = UINT_MAX;
1317:
1318: if (tty->flags & TTY_STARTED) {
1319: tty_putcode(tty, TTYC_SGR0);
1320:
1321: tty->mode = ALL_MODES;
1322: tty_update_mode(tty, MODE_CURSOR, NULL);
1323:
1324: tty_cursor(tty, 0, 0);
1325: tty_region_off(tty);
1326: tty_margin_off(tty);
1327: } else
1328: tty->mode = MODE_CURSOR;
1329: }
1330:
1331: /* Turn off margin. */
1332: void
1333: tty_region_off(struct tty *tty)
1334: {
1335: tty_region(tty, 0, tty->sy - 1);
1336: }
1337:
1338: /* Set region inside pane. */
1339: static void
1340: tty_region_pane(struct tty *tty, const struct tty_ctx *ctx, u_int rupper,
1341: u_int rlower)
1342: {
1343: tty_region(tty, ctx->yoff + rupper, ctx->yoff + rlower);
1344: }
1345:
1346: /* Set region at absolute position. */
1347: static void
1348: tty_region(struct tty *tty, u_int rupper, u_int rlower)
1349: {
1350: if (tty->rlower == rlower && tty->rupper == rupper)
1351: return;
1352: if (!tty_term_has(tty->term, TTYC_CSR))
1353: return;
1354:
1355: tty->rupper = rupper;
1356: tty->rlower = rlower;
1357:
1358: /*
1359: * Some terminals (such as PuTTY) do not correctly reset the cursor to
1360: * 0,0 if it is beyond the last column (they do not reset their wrap
1361: * flag so further output causes a line feed). As a workaround, do an
1362: * explicit move to 0 first.
1363: */
1364: if (tty->cx >= tty->sx)
1365: tty_cursor(tty, 0, tty->cy);
1366:
1367: tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1368: tty->cx = tty->cy = UINT_MAX;
1369: }
1370:
1371: /* Turn off margin. */
1372: void
1373: tty_margin_off(struct tty *tty)
1374: {
1375: tty_margin(tty, 0, tty->sx - 1);
1376: }
1377:
1378: /* Set margin inside pane. */
1379: static void
1380: tty_margin_pane(struct tty *tty, const struct tty_ctx *ctx)
1381: {
1382: tty_margin(tty, ctx->xoff, ctx->xoff + ctx->wp->sx - 1);
1383: }
1384:
1385: /* Set margin at absolute position. */
1386: static void
1387: tty_margin(struct tty *tty, u_int rleft, u_int rright)
1388: {
1389: char s[64];
1390:
1391: if (!tty_use_margin(tty))
1392: return;
1393: if (tty->rleft == rleft && tty->rright == rright)
1394: return;
1395:
1396: tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1397:
1398: tty->rleft = rleft;
1399: tty->rright = rright;
1400:
1401: if (rleft == 0 && rright == tty->sx - 1)
1402: snprintf(s, sizeof s, "\033[s");
1403: else
1404: snprintf(s, sizeof s, "\033[%u;%us", rleft + 1, rright + 1);
1405: tty_puts(tty, s);
1406: tty->cx = tty->cy = UINT_MAX;
1407: }
1408:
1409: /*
1410: * Move the cursor, unless it would wrap itself when the next character is
1411: * printed.
1412: */
1413: static void
1414: tty_cursor_pane_unless_wrap(struct tty *tty, const struct tty_ctx *ctx,
1415: u_int cx, u_int cy)
1416: {
1417: if (!tty_pane_full_width(tty, ctx) ||
1418: (tty->term->flags & TERM_EARLYWRAP) ||
1419: ctx->xoff + cx != 0 ||
1420: ctx->yoff + cy != tty->cy + 1 ||
1421: tty->cx < tty->sx ||
1422: tty->cy == tty->rlower)
1423: tty_cursor_pane(tty, ctx, cx, cy);
1424: else
1425: log_debug("%s: will wrap at %u,%u", __func__, tty->cx, tty->cy);
1426: }
1427:
1428: /* Move cursor inside pane. */
1429: static void
1430: tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
1431: {
1432: tty_cursor(tty, ctx->xoff + cx, ctx->yoff + cy);
1433: }
1434:
1435: /* Move cursor to absolute position. */
1436: void
1437: tty_cursor(struct tty *tty, u_int cx, u_int cy)
1438: {
1439: struct tty_term *term = tty->term;
1440: u_int thisx, thisy;
1441: int change;
1442:
1443: if (cx > tty->sx - 1)
1444: cx = tty->sx - 1;
1445:
1446: thisx = tty->cx;
1447: thisy = tty->cy;
1448:
1449: /* No change. */
1450: if (cx == thisx && cy == thisy)
1451: return;
1452:
1453: /* Very end of the line, just use absolute movement. */
1454: if (thisx > tty->sx - 1)
1455: goto absolute;
1456:
1457: /* Move to home position (0, 0). */
1458: if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
1459: tty_putcode(tty, TTYC_HOME);
1460: goto out;
1461: }
1462:
1463: /* Zero on the next line. */
1464: if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower) {
1465: tty_putc(tty, '\r');
1466: tty_putc(tty, '\n');
1467: goto out;
1468: }
1469:
1470: /* Moving column or row. */
1471: if (cy == thisy) {
1472: /*
1473: * Moving column only, row staying the same.
1474: */
1475:
1476: /* To left edge. */
1477: if (cx == 0) {
1478: tty_putc(tty, '\r');
1479: goto out;
1480: }
1481:
1482: /* One to the left. */
1483: if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) {
1484: tty_putcode(tty, TTYC_CUB1);
1485: goto out;
1486: }
1487:
1488: /* One to the right. */
1489: if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) {
1490: tty_putcode(tty, TTYC_CUF1);
1491: goto out;
1492: }
1493:
1494: /* Calculate difference. */
1495: change = thisx - cx; /* +ve left, -ve right */
1496:
1497: /*
1498: * Use HPA if change is larger than absolute, otherwise move
1499: * the cursor with CUB/CUF.
1500: */
1501: if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) {
1502: tty_putcode1(tty, TTYC_HPA, cx);
1503: goto out;
1504: } else if (change > 0 && tty_term_has(term, TTYC_CUB)) {
1505: if (change == 2 && tty_term_has(term, TTYC_CUB1)) {
1506: tty_putcode(tty, TTYC_CUB1);
1507: tty_putcode(tty, TTYC_CUB1);
1508: goto out;
1509: }
1510: tty_putcode1(tty, TTYC_CUB, change);
1511: goto out;
1512: } else if (change < 0 && tty_term_has(term, TTYC_CUF)) {
1513: tty_putcode1(tty, TTYC_CUF, -change);
1514: goto out;
1515: }
1516: } else if (cx == thisx) {
1517: /*
1518: * Moving row only, column staying the same.
1519: */
1520:
1521: /* One above. */
1522: if (thisy != tty->rupper &&
1523: cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) {
1524: tty_putcode(tty, TTYC_CUU1);
1525: goto out;
1526: }
1527:
1528: /* One below. */
1529: if (thisy != tty->rlower &&
1530: cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) {
1531: tty_putcode(tty, TTYC_CUD1);
1532: goto out;
1533: }
1534:
1535: /* Calculate difference. */
1536: change = thisy - cy; /* +ve up, -ve down */
1537:
1538: /*
1539: * Try to use VPA if change is larger than absolute or if this
1540: * change would cross the scroll region, otherwise use CUU/CUD.
1541: */
1542: if ((u_int) abs(change) > cy ||
1543: (change < 0 && cy - change > tty->rlower) ||
1544: (change > 0 && cy - change < tty->rupper)) {
1545: if (tty_term_has(term, TTYC_VPA)) {
1546: tty_putcode1(tty, TTYC_VPA, cy);
1547: goto out;
1548: }
1549: } else if (change > 0 && tty_term_has(term, TTYC_CUU)) {
1550: tty_putcode1(tty, TTYC_CUU, change);
1551: goto out;
1552: } else if (change < 0 && tty_term_has(term, TTYC_CUD)) {
1553: tty_putcode1(tty, TTYC_CUD, -change);
1554: goto out;
1555: }
1556: }
1557:
1558: absolute:
1559: /* Absolute movement. */
1560: tty_putcode2(tty, TTYC_CUP, cy, cx);
1561:
1562: out:
1563: tty->cx = cx;
1564: tty->cy = cy;
1565: }
1566:
1567: void
1568: tty_attributes(struct tty *tty, const struct grid_cell *gc,
1569: const struct window_pane *wp)
1570: {
1571: struct grid_cell *tc = &tty->cell, gc2;
1572: int changed;
1573:
1574: /* Ignore cell if it is the same as the last one. */
1575: if (wp != NULL &&
1576: (int)wp->id == tty->last_wp &&
1577: ~(wp->window->flags & WINDOW_STYLECHANGED) &&
1578: gc->attr == tty->last_cell.attr &&
1579: gc->fg == tty->last_cell.fg &&
1580: gc->bg == tty->last_cell.bg)
1581: return;
1582: tty->last_wp = (wp != NULL ? (int)wp->id : -1);
1583: memcpy(&tty->last_cell, gc, sizeof tty->last_cell);
1584:
1585: /* Copy cell and update default colours. */
1586: memcpy(&gc2, gc, sizeof gc2);
1587: if (wp != NULL)
1588: tty_default_colours(&gc2, wp);
1589:
1590: /*
1591: * If no setab, try to use the reverse attribute as a best-effort for a
1592: * non-default background. This is a bit of a hack but it doesn't do
1593: * any serious harm and makes a couple of applications happier.
1594: */
1595: if (!tty_term_has(tty->term, TTYC_SETAB)) {
1596: if (gc2.attr & GRID_ATTR_REVERSE) {
1597: if (gc2.fg != 7 && gc2.fg != 8)
1598: gc2.attr &= ~GRID_ATTR_REVERSE;
1599: } else {
1600: if (gc2.bg != 0 && gc2.bg != 8)
1601: gc2.attr |= GRID_ATTR_REVERSE;
1602: }
1603: }
1604:
1605: /* Fix up the colours if necessary. */
1606: tty_check_fg(tty, wp, &gc2);
1607: tty_check_bg(tty, wp, &gc2);
1608:
1609: /* If any bits are being cleared, reset everything. */
1610: if (tc->attr & ~gc2.attr)
1611: tty_reset(tty);
1612:
1613: /*
1614: * Set the colours. This may call tty_reset() (so it comes next) and
1615: * may add to (NOT remove) the desired attributes by changing new_attr.
1616: */
1617: tty_colours(tty, &gc2);
1618:
1619: /* Filter out attribute bits already set. */
1620: changed = gc2.attr & ~tc->attr;
1621: tc->attr = gc2.attr;
1622:
1623: /* Set the attributes. */
1624: if (changed & GRID_ATTR_BRIGHT)
1625: tty_putcode(tty, TTYC_BOLD);
1626: if (changed & GRID_ATTR_DIM)
1627: tty_putcode(tty, TTYC_DIM);
1628: if (changed & GRID_ATTR_ITALICS)
1629: tty_set_italics(tty);
1630: if (changed & GRID_ATTR_UNDERSCORE)
1631: tty_putcode(tty, TTYC_SMUL);
1632: if (changed & GRID_ATTR_BLINK)
1633: tty_putcode(tty, TTYC_BLINK);
1634: if (changed & GRID_ATTR_REVERSE) {
1635: if (tty_term_has(tty->term, TTYC_REV))
1636: tty_putcode(tty, TTYC_REV);
1637: else if (tty_term_has(tty->term, TTYC_SMSO))
1638: tty_putcode(tty, TTYC_SMSO);
1639: }
1640: if (changed & GRID_ATTR_HIDDEN)
1641: tty_putcode(tty, TTYC_INVIS);
1642: if (changed & GRID_ATTR_STRIKETHROUGH)
1643: tty_putcode(tty, TTYC_SMXX);
1644: if ((changed & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1645: tty_putcode(tty, TTYC_SMACS);
1646: }
1647:
1648: static void
1649: tty_colours(struct tty *tty, const struct grid_cell *gc)
1650: {
1651: struct grid_cell *tc = &tty->cell;
1652: int have_ax;
1653:
1654: /* No changes? Nothing is necessary. */
1655: if (gc->fg == tc->fg && gc->bg == tc->bg)
1656: return;
1657:
1658: /*
1659: * Is either the default colour? This is handled specially because the
1660: * best solution might be to reset both colours to default, in which
1661: * case if only one is default need to fall onward to set the other
1662: * colour.
1663: */
1664: if (gc->fg == 8 || gc->bg == 8) {
1665: /*
1666: * If don't have AX but do have op, send sgr0 (op can't
1667: * actually be used because it is sometimes the same as sgr0
1668: * and sometimes isn't). This resets both colours to default.
1669: *
1670: * Otherwise, try to set the default colour only as needed.
1671: */
1672: have_ax = tty_term_flag(tty->term, TTYC_AX);
1673: if (!have_ax && tty_term_has(tty->term, TTYC_OP))
1674: tty_reset(tty);
1675: else {
1676: if (gc->fg == 8 && tc->fg != 8) {
1677: if (have_ax)
1678: tty_puts(tty, "\033[39m");
1679: else if (tc->fg != 7)
1680: tty_putcode1(tty, TTYC_SETAF, 7);
1681: tc->fg = 8;
1682: }
1683: if (gc->bg == 8 && tc->bg != 8) {
1684: if (have_ax)
1685: tty_puts(tty, "\033[49m");
1686: else if (tc->bg != 0)
1687: tty_putcode1(tty, TTYC_SETAB, 0);
1688: tc->bg = 8;
1689: }
1690: }
1691: }
1692:
1693: /* Set the foreground colour. */
1694: if (gc->fg != 8 && gc->fg != tc->fg)
1695: tty_colours_fg(tty, gc);
1696:
1697: /*
1698: * Set the background colour. This must come after the foreground as
1699: * tty_colour_fg() can call tty_reset().
1700: */
1701: if (gc->bg != 8 && gc->bg != tc->bg)
1702: tty_colours_bg(tty, gc);
1703: }
1704:
1705: static void
1706: tty_check_fg(struct tty *tty, const struct window_pane *wp,
1707: struct grid_cell *gc)
1708: {
1709: u_char r, g, b;
1710: u_int colours;
1711: int c;
1712:
1713: /* Perform substitution if this pane has a palette */
1714: if ((~gc->flags & GRID_FLAG_NOPALETTE) &&
1715: (c = window_pane_get_palette(wp, gc->fg)) != -1)
1716: gc->fg = c;
1717:
1718: /* Is this a 24-bit colour? */
1719: if (gc->fg & COLOUR_FLAG_RGB) {
1720: /* Not a 24-bit terminal? Translate to 256-colour palette. */
1721: if (!tty_term_flag(tty->term, TTYC_TC)) {
1722: colour_split_rgb(gc->fg, &r, &g, &b);
1723: gc->fg = colour_find_rgb(r, g, b);
1724: } else
1725: return;
1726: }
1727:
1728: /* How many colours does this terminal have? */
1729: if ((tty->term->flags|tty->term_flags) & TERM_256COLOURS)
1730: colours = 256;
1731: else
1732: colours = tty_term_number(tty->term, TTYC_COLORS);
1733:
1734: /* Is this a 256-colour colour? */
1735: if (gc->fg & COLOUR_FLAG_256) {
1736: /* And not a 256 colour mode? */
1737: if (colours != 256) {
1738: gc->fg = colour_256to16(gc->fg);
1739: if (gc->fg & 8) {
1740: gc->fg &= 7;
1741: if (colours >= 16)
1742: gc->fg += 90;
1743: else
1744: gc->attr |= GRID_ATTR_BRIGHT;
1745: } else
1746: gc->attr &= ~GRID_ATTR_BRIGHT;
1747: }
1748: return;
1749: }
1750:
1751: /* Is this an aixterm colour? */
1752: if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) {
1753: gc->fg -= 90;
1754: gc->attr |= GRID_ATTR_BRIGHT;
1755: }
1756: }
1757:
1758: static void
1759: tty_check_bg(struct tty *tty, const struct window_pane *wp,
1760: struct grid_cell *gc)
1761: {
1762: u_char r, g, b;
1763: u_int colours;
1764: int c;
1765:
1766: /* Perform substitution if this pane has a palette */
1767: if ((~gc->flags & GRID_FLAG_NOPALETTE) &&
1768: (c = window_pane_get_palette(wp, gc->bg)) != -1)
1769: gc->bg = c;
1770:
1771: /* Is this a 24-bit colour? */
1772: if (gc->bg & COLOUR_FLAG_RGB) {
1773: /* Not a 24-bit terminal? Translate to 256-colour palette. */
1774: if (!tty_term_flag(tty->term, TTYC_TC)) {
1775: colour_split_rgb(gc->bg, &r, &g, &b);
1776: gc->bg = colour_find_rgb(r, g, b);
1777: } else
1778: return;
1779: }
1780:
1781: /* How many colours does this terminal have? */
1782: if ((tty->term->flags|tty->term_flags) & TERM_256COLOURS)
1783: colours = 256;
1784: else
1785: colours = tty_term_number(tty->term, TTYC_COLORS);
1786:
1787: /* Is this a 256-colour colour? */
1788: if (gc->bg & COLOUR_FLAG_256) {
1789: /*
1790: * And not a 256 colour mode? Translate to 16-colour
1791: * palette. Bold background doesn't exist portably, so just
1792: * discard the bold bit if set.
1793: */
1794: if (colours != 256) {
1795: gc->bg = colour_256to16(gc->bg);
1796: if (gc->bg & 8) {
1797: gc->bg &= 7;
1798: if (colours >= 16)
1799: gc->fg += 90;
1800: }
1801: }
1802: return;
1803: }
1804:
1805: /* Is this an aixterm colour? */
1806: if (gc->bg >= 90 && gc->bg <= 97 && colours < 16)
1807: gc->bg -= 90;
1808: }
1809:
1810: static void
1811: tty_colours_fg(struct tty *tty, const struct grid_cell *gc)
1812: {
1813: struct grid_cell *tc = &tty->cell;
1814: char s[32];
1815:
1816: /* Is this a 24-bit or 256-colour colour? */
1817: if (gc->fg & COLOUR_FLAG_RGB ||
1818: gc->fg & COLOUR_FLAG_256) {
1819: if (tty_try_colour(tty, gc->fg, "38") == 0)
1820: goto save_fg;
1821: /* Should not get here, already converted in tty_check_fg. */
1822: return;
1823: }
1824:
1825: /* Is this an aixterm bright colour? */
1826: if (gc->fg >= 90 && gc->fg <= 97) {
1827: xsnprintf(s, sizeof s, "\033[%dm", gc->fg);
1828: tty_puts(tty, s);
1829: goto save_fg;
1830: }
1831:
1832: /* Otherwise set the foreground colour. */
1833: tty_putcode1(tty, TTYC_SETAF, gc->fg);
1834:
1835: save_fg:
1836: /* Save the new values in the terminal current cell. */
1837: tc->fg = gc->fg;
1838: }
1839:
1840: static void
1841: tty_colours_bg(struct tty *tty, const struct grid_cell *gc)
1842: {
1843: struct grid_cell *tc = &tty->cell;
1844: char s[32];
1845:
1846: /* Is this a 24-bit or 256-colour colour? */
1847: if (gc->bg & COLOUR_FLAG_RGB ||
1848: gc->bg & COLOUR_FLAG_256) {
1849: if (tty_try_colour(tty, gc->bg, "48") == 0)
1850: goto save_bg;
1851: /* Should not get here, already converted in tty_check_bg. */
1852: return;
1853: }
1854:
1855: /* Is this an aixterm bright colour? */
1856: if (gc->bg >= 90 && gc->bg <= 97) {
1857: xsnprintf(s, sizeof s, "\033[%dm", gc->bg + 10);
1858: tty_puts(tty, s);
1859: goto save_bg;
1860: }
1861:
1862: /* Otherwise set the background colour. */
1863: tty_putcode1(tty, TTYC_SETAB, gc->bg);
1864:
1865: save_bg:
1866: /* Save the new values in the terminal current cell. */
1867: tc->bg = gc->bg;
1868: }
1869:
1870: static int
1871: tty_try_colour(struct tty *tty, int colour, const char *type)
1872: {
1873: u_char r, g, b;
1874: char s[32];
1875:
1876: if (colour & COLOUR_FLAG_256) {
1877: /*
1878: * If the user has specified -2 to the client, setaf and setab
1879: * may not work (or they may not want to use them), so send the
1880: * usual sequence.
1881: */
1882: if (tty->term_flags & TERM_256COLOURS)
1883: goto fallback_256;
1884:
1885: /*
1886: * If the terminfo entry has 256 colours and setaf and setab
1887: * exist, assume that they work correctly.
1888: */
1889: if (tty->term->flags & TERM_256COLOURS) {
1890: if (*type == '3') {
1891: if (!tty_term_has(tty->term, TTYC_SETAF))
1892: goto fallback_256;
1893: tty_putcode1(tty, TTYC_SETAF, colour & 0xff);
1894: } else {
1895: if (!tty_term_has(tty->term, TTYC_SETAB))
1896: goto fallback_256;
1897: tty_putcode1(tty, TTYC_SETAB, colour & 0xff);
1898: }
1899: return (0);
1900: }
1901: goto fallback_256;
1902: }
1903:
1904: if (colour & COLOUR_FLAG_RGB) {
1905: if (!tty_term_flag(tty->term, TTYC_TC))
1906: return (-1);
1907:
1908: colour_split_rgb(colour & 0xffffff, &r, &g, &b);
1909: xsnprintf(s, sizeof s, "\033[%s;2;%hhu;%hhu;%hhum", type,
1910: r, g, b);
1911: tty_puts(tty, s);
1912: return (0);
1913: }
1914:
1915: return (-1);
1916:
1917: fallback_256:
1918: xsnprintf(s, sizeof s, "\033[%s;5;%dm", type, colour & 0xff);
1919: tty_puts(tty, s);
1920: return (0);
1921: }
1922:
1923: static void
1924: tty_default_colours(struct grid_cell *gc, const struct window_pane *wp)
1925: {
1926: struct window *w = wp->window;
1927: struct options *oo = w->options;
1928: const struct grid_cell *agc, *pgc, *wgc;
1929: int c;
1930:
1931: if (w->flags & WINDOW_STYLECHANGED) {
1932: w->flags &= ~WINDOW_STYLECHANGED;
1933: agc = options_get_style(oo, "window-active-style");
1934: memcpy(&w->active_style, agc, sizeof w->active_style);
1935: wgc = options_get_style(oo, "window-style");
1936: memcpy(&w->style, wgc, sizeof w->style);
1937: } else {
1938: agc = &w->active_style;
1939: wgc = &w->style;
1940: }
1941: pgc = &wp->colgc;
1942:
1943: if (gc->fg == 8) {
1944: if (pgc->fg != 8)
1945: gc->fg = pgc->fg;
1946: else if (wp == w->active && agc->fg != 8)
1947: gc->fg = agc->fg;
1948: else
1949: gc->fg = wgc->fg;
1950:
1951: if (gc->fg != 8 &&
1952: (c = window_pane_get_palette(wp, gc->fg)) != -1)
1953: gc->fg = c;
1954: }
1955:
1956: if (gc->bg == 8) {
1957: if (pgc->bg != 8)
1958: gc->bg = pgc->bg;
1959: else if (wp == w->active && agc->bg != 8)
1960: gc->bg = agc->bg;
1961: else
1962: gc->bg = wgc->bg;
1963:
1964: if (gc->bg != 8 &&
1965: (c = window_pane_get_palette(wp, gc->bg)) != -1)
1966: gc->bg = c;
1967: }
1968: }
1969:
1970: static void
1971: tty_default_attributes(struct tty *tty, const struct window_pane *wp, u_int bg)
1972: {
1973: static struct grid_cell gc;
1974:
1975: memcpy(&gc, &grid_default_cell, sizeof gc);
1976: gc.bg = bg;
1977: tty_attributes(tty, &gc, wp);
1978: }
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