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Annotation of src/usr.bin/tmux/tty.c, Revision 1.243

1.243   ! nicm        1: /* $OpenBSD: tty.c,v 1.242 2017/02/08 23:47:35 nicm Exp $ */
1.1       nicm        2:
                      3: /*
1.198     nicm        4:  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1       nicm        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:
1.106     nicm       22: #include <netinet/in.h>
                     23:
1.212     nicm       24: #include <curses.h>
1.1       nicm       25: #include <errno.h>
                     26: #include <fcntl.h>
1.106     nicm       27: #include <resolv.h>
1.42      nicm       28: #include <stdlib.h>
1.1       nicm       29: #include <string.h>
                     30: #include <termios.h>
                     31: #include <unistd.h>
                     32:
                     33: #include "tmux.h"
                     34:
1.207     nicm       35: static int     tty_log_fd = -1;
1.192     nicm       36:
1.208     nicm       37: static void    tty_init_termios(int, struct termios *, struct bufferevent *);
                     38:
1.207     nicm       39: static void    tty_read_callback(struct bufferevent *, void *);
                     40: static void    tty_error_callback(struct bufferevent *, short, void *);
1.66      nicm       41:
1.207     nicm       42: static int     tty_client_ready(struct client *, struct window_pane *);
1.201     nicm       43:
1.207     nicm       44: static void    tty_set_italics(struct tty *);
                     45: static int     tty_try_colour(struct tty *, int, const char *);
1.208     nicm       46: static void    tty_force_cursor_colour(struct tty *, const char *);
                     47: static void    tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int,
                     48:                    u_int);
1.242     nicm       49: static void    tty_invalidate(struct tty *);
1.207     nicm       50: static void    tty_colours(struct tty *, const struct grid_cell *);
1.219     nicm       51: static void    tty_check_fg(struct tty *, const struct window_pane *,
                     52:                    struct grid_cell *);
                     53: static void    tty_check_bg(struct tty *, const struct window_pane *,
                     54:                    struct grid_cell *);
1.207     nicm       55: static void    tty_colours_fg(struct tty *, const struct grid_cell *);
                     56: static void    tty_colours_bg(struct tty *, const struct grid_cell *);
                     57:
1.208     nicm       58: static void    tty_region_pane(struct tty *, const struct tty_ctx *, u_int,
                     59:                    u_int);
1.214     nicm       60: static void    tty_region(struct tty *, u_int, u_int);
1.212     nicm       61: static void    tty_margin_pane(struct tty *, const struct tty_ctx *);
1.214     nicm       62: static void    tty_margin(struct tty *, u_int, u_int);
1.207     nicm       63: static int     tty_large_region(struct tty *, const struct tty_ctx *);
1.210     nicm       64: static int     tty_fake_bce(const struct tty *, const struct window_pane *,
                     65:                    u_int);
1.207     nicm       66: static void    tty_redraw_region(struct tty *, const struct tty_ctx *);
                     67: static void    tty_emulate_repeat(struct tty *, enum tty_code_code,
                     68:                    enum tty_code_code, u_int);
                     69: static void    tty_repeat_space(struct tty *, u_int);
                     70: static void    tty_cell(struct tty *, const struct grid_cell *,
                     71:                    const struct window_pane *);
                     72: static void    tty_default_colours(struct grid_cell *,
                     73:                    const struct window_pane *);
1.210     nicm       74: static void    tty_default_attributes(struct tty *, const struct window_pane *,
                     75:                    u_int);
1.1       nicm       76:
1.90      nicm       77: #define tty_use_acs(tty) \
1.131     nicm       78:        (tty_term_has((tty)->term, TTYC_ACSC) && !((tty)->flags & TTY_UTF8))
1.212     nicm       79: #define tty_use_margin(tty) \
1.214     nicm       80:        ((tty)->term_type == TTY_VT420)
1.90      nicm       81:
1.229     nicm       82: #define tty_pane_full_width(tty, ctx)                                  \
1.132     nicm       83:        ((ctx)->xoff == 0 && screen_size_x((ctx)->wp->screen) >= (tty)->sx)
                     84:
1.192     nicm       85: void
                     86: tty_create_log(void)
                     87: {
                     88:        char    name[64];
                     89:
                     90:        xsnprintf(name, sizeof name, "tmux-out-%ld.log", (long)getpid());
                     91:
                     92:        tty_log_fd = open(name, O_WRONLY|O_CREAT|O_TRUNC, 0644);
                     93:        if (tty_log_fd != -1 && fcntl(tty_log_fd, F_SETFD, FD_CLOEXEC) == -1)
                     94:                fatal("fcntl failed");
                     95: }
                     96:
1.185     nicm       97: int
1.136     nicm       98: tty_init(struct tty *tty, struct client *c, int fd, char *term)
1.1       nicm       99: {
1.30      nicm      100:        char    *path;
                    101:
1.185     nicm      102:        if (!isatty(fd))
                    103:                return (-1);
                    104:
1.30      nicm      105:        memset(tty, 0, sizeof *tty);
1.22      nicm      106:
1.9       nicm      107:        if (term == NULL || *term == '\0')
1.220     nicm      108:                tty->term_name = xstrdup("unknown");
1.1       nicm      109:        else
1.220     nicm      110:                tty->term_name = xstrdup(term);
1.30      nicm      111:        tty->fd = fd;
1.136     nicm      112:        tty->client = c;
1.30      nicm      113:
                    114:        if ((path = ttyname(fd)) == NULL)
1.185     nicm      115:                return (-1);
1.30      nicm      116:        tty->path = xstrdup(path);
1.108     nicm      117:        tty->cstyle = 0;
1.107     nicm      118:        tty->ccolour = xstrdup("");
1.30      nicm      119:
1.1       nicm      120:        tty->flags = 0;
1.212     nicm      121:
1.1       nicm      122:        tty->term_flags = 0;
1.212     nicm      123:        tty->term_type = TTY_UNKNOWN;
1.185     nicm      124:
                    125:        return (0);
1.31      nicm      126: }
                    127:
1.88      nicm      128: int
1.31      nicm      129: tty_resize(struct tty *tty)
                    130: {
                    131:        struct winsize  ws;
1.88      nicm      132:        u_int           sx, sy;
1.31      nicm      133:
                    134:        if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
1.88      nicm      135:                sx = ws.ws_col;
                    136:                if (sx == 0)
                    137:                        sx = 80;
                    138:                sy = ws.ws_row;
                    139:                if (sy == 0)
                    140:                        sy = 24;
                    141:        } else {
                    142:                sx = 80;
                    143:                sy = 24;
1.31      nicm      144:        }
1.235     nicm      145:        log_debug("%s: %s now %ux%u", __func__, tty->path, sx, sy);
1.114     nicm      146:        if (!tty_set_size(tty, sx, sy))
1.88      nicm      147:                return (0);
1.242     nicm      148:        tty_invalidate(tty);
1.114     nicm      149:        return (1);
                    150: }
                    151:
                    152: int
1.212     nicm      153: tty_set_size(struct tty *tty, u_int sx, u_int sy)
                    154: {
1.114     nicm      155:        if (sx == tty->sx && sy == tty->sy)
                    156:                return (0);
                    157:        tty->sx = sx;
                    158:        tty->sy = sy;
1.88      nicm      159:        return (1);
1.1       nicm      160: }
                    161:
                    162: int
1.166     nicm      163: tty_open(struct tty *tty, char **cause)
1.1       nicm      164: {
1.220     nicm      165:        tty->term = tty_term_find(tty->term_name, tty->fd, cause);
1.21      nicm      166:        if (tty->term == NULL) {
                    167:                tty_close(tty);
                    168:                return (-1);
                    169:        }
                    170:        tty->flags |= TTY_OPENED;
1.1       nicm      171:
1.149     nicm      172:        tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_TIMER);
1.1       nicm      173:
1.196     nicm      174:        tty->event = bufferevent_new(tty->fd, tty_read_callback, NULL,
                    175:            tty_error_callback, tty);
1.1       nicm      176:
                    177:        tty_start_tty(tty);
                    178:
1.148     nicm      179:        tty_keys_build(tty);
1.1       nicm      180:
                    181:        return (0);
                    182: }
                    183:
1.207     nicm      184: static void
1.194     nicm      185: tty_read_callback(__unused struct bufferevent *bufev, void *data)
1.67      nicm      186: {
                    187:        struct tty      *tty = data;
                    188:
                    189:        while (tty_keys_next(tty))
                    190:                ;
                    191: }
                    192:
1.207     nicm      193: static void
1.194     nicm      194: tty_error_callback(__unused struct bufferevent *bufev, __unused short what,
                    195:     __unused void *data)
1.66      nicm      196: {
                    197: }
                    198:
1.208     nicm      199: static void
1.127     nicm      200: tty_init_termios(int fd, struct termios *orig_tio, struct bufferevent *bufev)
1.1       nicm      201: {
1.128     nicm      202:        struct termios  tio;
1.33      nicm      203:
1.127     nicm      204:        if (fd == -1 || tcgetattr(fd, orig_tio) != 0)
1.33      nicm      205:                return;
1.1       nicm      206:
1.127     nicm      207:        setblocking(fd, 0);
1.34      nicm      208:
1.127     nicm      209:        if (bufev != NULL)
                    210:                bufferevent_enable(bufev, EV_READ|EV_WRITE);
1.66      nicm      211:
1.127     nicm      212:        memcpy(&tio, orig_tio, sizeof tio);
1.1       nicm      213:        tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
                    214:        tio.c_iflag |= IGNBRK;
                    215:        tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
                    216:        tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
1.169     jsg       217:            ECHOPRT|ECHOKE|ISIG);
1.1       nicm      218:        tio.c_cc[VMIN] = 1;
1.60      deraadt   219:        tio.c_cc[VTIME] = 0;
1.127     nicm      220:        if (tcsetattr(fd, TCSANOW, &tio) == 0)
                    221:                tcflush(fd, TCIOFLUSH);
                    222: }
                    223:
                    224: void
                    225: tty_start_tty(struct tty *tty)
                    226: {
                    227:        tty_init_termios(tty->fd, &tty->tio, tty->event);
1.1       nicm      228:
1.10      nicm      229:        tty_putcode(tty, TTYC_SMCUP);
1.1       nicm      230:
1.76      nicm      231:        tty_putcode(tty, TTYC_RMKX);
1.90      nicm      232:        if (tty_use_acs(tty))
                    233:                tty_putcode(tty, TTYC_ENACS);
1.1       nicm      234:        tty_putcode(tty, TTYC_CLEAR);
                    235:
                    236:        tty_putcode(tty, TTYC_CNORM);
                    237:        if (tty_term_has(tty->term, TTYC_KMOUS))
1.179     nicm      238:                tty_puts(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
1.121     nicm      239:
1.189     nicm      240:        if (tty_term_flag(tty->term, TTYC_XT)) {
1.191     nicm      241:                if (options_get_number(global_options, "focus-events")) {
1.162     nicm      242:                        tty->flags |= TTY_FOCUS;
                    243:                        tty_puts(tty, "\033[?1004h");
                    244:                }
1.212     nicm      245:                tty_puts(tty, "\033[c");
1.162     nicm      246:        }
1.1       nicm      247:
1.20      nicm      248:        tty->flags |= TTY_STARTED;
1.242     nicm      249:        tty_invalidate(tty);
1.107     nicm      250:
                    251:        tty_force_cursor_colour(tty, "");
1.177     nicm      252:
                    253:        tty->mouse_drag_flag = 0;
                    254:        tty->mouse_drag_update = NULL;
                    255:        tty->mouse_drag_release = NULL;
1.128     nicm      256: }
                    257:
                    258: void
1.1       nicm      259: tty_stop_tty(struct tty *tty)
                    260: {
                    261:        struct winsize  ws;
                    262:
1.20      nicm      263:        if (!(tty->flags & TTY_STARTED))
                    264:                return;
                    265:        tty->flags &= ~TTY_STARTED;
                    266:
1.66      nicm      267:        bufferevent_disable(tty->event, EV_READ|EV_WRITE);
                    268:
1.1       nicm      269:        /*
                    270:         * Be flexible about error handling and try not kill the server just
                    271:         * because the fd is invalid. Things like ssh -t can easily leave us
                    272:         * with a dead tty.
                    273:         */
                    274:        if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
                    275:                return;
                    276:        if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
                    277:                return;
                    278:
                    279:        tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
1.90      nicm      280:        if (tty_use_acs(tty))
                    281:                tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
1.1       nicm      282:        tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
                    283:        tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
                    284:        tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
1.160     nicm      285:        if (tty_term_has(tty->term, TTYC_SS) && tty->cstyle != 0) {
                    286:                if (tty_term_has(tty->term, TTYC_SE))
                    287:                        tty_raw(tty, tty_term_string(tty->term, TTYC_SE));
1.109     nicm      288:                else
1.160     nicm      289:                        tty_raw(tty, tty_term_string1(tty->term, TTYC_SS, 0));
1.108     nicm      290:        }
1.173     nicm      291:        if (tty->mode & MODE_BRACKETPASTE)
                    292:                tty_raw(tty, "\033[?2004l");
1.107     nicm      293:        tty_raw(tty, tty_term_string(tty->term, TTYC_CR));
1.1       nicm      294:
                    295:        tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
                    296:        if (tty_term_has(tty->term, TTYC_KMOUS))
1.179     nicm      297:                tty_raw(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
1.151     nicm      298:
1.189     nicm      299:        if (tty_term_flag(tty->term, TTYC_XT)) {
1.162     nicm      300:                if (tty->flags & TTY_FOCUS) {
                    301:                        tty->flags &= ~TTY_FOCUS;
1.172     nicm      302:                        tty_raw(tty, "\033[?1004l");
1.162     nicm      303:                }
                    304:        }
1.10      nicm      305:
1.212     nicm      306:        if (tty_use_margin(tty))
                    307:                tty_raw(tty, "\033[?69l"); /* DECLRMM */
1.10      nicm      308:        tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
1.150     nicm      309:
                    310:        setblocking(tty->fd, 1);
1.1       nicm      311: }
                    312:
                    313: void
1.20      nicm      314: tty_close(struct tty *tty)
1.1       nicm      315: {
1.123     nicm      316:        if (event_initialized(&tty->key_timer))
                    317:                evtimer_del(&tty->key_timer);
1.20      nicm      318:        tty_stop_tty(tty);
1.1       nicm      319:
1.21      nicm      320:        if (tty->flags & TTY_OPENED) {
1.66      nicm      321:                bufferevent_free(tty->event);
                    322:
1.21      nicm      323:                tty_term_free(tty->term);
                    324:                tty_keys_free(tty);
                    325:
                    326:                tty->flags &= ~TTY_OPENED;
                    327:        }
1.1       nicm      328:
1.21      nicm      329:        if (tty->fd != -1) {
                    330:                close(tty->fd);
                    331:                tty->fd = -1;
                    332:        }
1.1       nicm      333: }
                    334:
                    335: void
1.20      nicm      336: tty_free(struct tty *tty)
1.1       nicm      337: {
1.20      nicm      338:        tty_close(tty);
1.1       nicm      339:
1.138     nicm      340:        free(tty->ccolour);
1.190     nicm      341:        free(tty->path);
1.220     nicm      342:        free(tty->term_name);
1.1       nicm      343: }
                    344:
                    345: void
1.212     nicm      346: tty_set_type(struct tty *tty, int type)
                    347: {
                    348:        tty->term_type = type;
                    349:
                    350:        if (tty_use_margin(tty))
                    351:                tty_puts(tty, "\033[?69h"); /* DECLRMM */
                    352: }
                    353:
                    354: void
1.1       nicm      355: tty_raw(struct tty *tty, const char *s)
                    356: {
1.150     nicm      357:        ssize_t n, slen;
                    358:        u_int   i;
                    359:
                    360:        slen = strlen(s);
                    361:        for (i = 0; i < 5; i++) {
                    362:                n = write(tty->fd, s, slen);
                    363:                if (n >= 0) {
                    364:                        s += n;
                    365:                        slen -= n;
                    366:                        if (slen == 0)
                    367:                                break;
                    368:                } else if (n == -1 && errno != EAGAIN)
                    369:                        break;
                    370:                usleep(100);
                    371:        }
1.1       nicm      372: }
                    373:
                    374: void
                    375: tty_putcode(struct tty *tty, enum tty_code_code code)
                    376: {
                    377:        tty_puts(tty, tty_term_string(tty->term, code));
                    378: }
                    379:
                    380: void
                    381: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
                    382: {
                    383:        if (a < 0)
                    384:                return;
                    385:        tty_puts(tty, tty_term_string1(tty->term, code, a));
                    386: }
                    387:
                    388: void
                    389: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
                    390: {
                    391:        if (a < 0 || b < 0)
                    392:                return;
                    393:        tty_puts(tty, tty_term_string2(tty->term, code, a, b));
                    394: }
                    395:
                    396: void
1.107     nicm      397: tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a)
                    398: {
                    399:        if (a != NULL)
                    400:                tty_puts(tty, tty_term_ptr1(tty->term, code, a));
                    401: }
                    402:
                    403: void
1.167     nicm      404: tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a,
                    405:     const void *b)
1.106     nicm      406: {
                    407:        if (a != NULL && b != NULL)
                    408:                tty_puts(tty, tty_term_ptr2(tty->term, code, a, b));
                    409: }
                    410:
1.243   ! nicm      411: static void
        !           412: tty_add(struct tty *tty, const char *buf, size_t len)
        !           413: {
        !           414:        bufferevent_write(tty->event, buf, len);
        !           415:        log_debug("%s: %.*s", tty->path, (int)len, buf);
        !           416:
        !           417:        if (tty_log_fd != -1)
        !           418:                write(tty_log_fd, buf, len);
        !           419: }
        !           420:
1.106     nicm      421: void
1.1       nicm      422: tty_puts(struct tty *tty, const char *s)
                    423: {
1.243   ! nicm      424:        if (*s != '\0')
        !           425:                tty_add(tty, s, strlen(s));
1.1       nicm      426: }
                    427:
                    428: void
                    429: tty_putc(struct tty *tty, u_char ch)
                    430: {
1.90      nicm      431:        const char      *acs;
1.1       nicm      432:
1.90      nicm      433:        if (tty->cell.attr & GRID_ATTR_CHARSET) {
                    434:                acs = tty_acs_get(tty, ch);
1.243   ! nicm      435:                if (acs != NULL)
        !           436:                        tty_add(tty, acs, strlen(acs));
        !           437:                else
        !           438:                        tty_add(tty, &ch, 1);
        !           439:        } else
        !           440:                tty_add(tty, &ch, 1);
1.1       nicm      441:
                    442:        if (ch >= 0x20 && ch != 0x7f) {
1.211     nicm      443:                if (tty->cx >= tty->sx) {
1.46      nicm      444:                        tty->cx = 1;
                    445:                        if (tty->cy != tty->rlower)
                    446:                                tty->cy++;
1.211     nicm      447:
                    448:                        /*
                    449:                         * On !xenl terminals, force the cursor position to
                    450:                         * where we think it should be after a line wrap - this
                    451:                         * means it works on sensible terminals as well.
                    452:                         */
                    453:                        if (tty->term->flags & TERM_EARLYWRAP)
                    454:                                tty_putcode2(tty, TTYC_CUP, tty->cy, tty->cx);
1.1       nicm      455:                } else
                    456:                        tty->cx++;
                    457:        }
                    458: }
                    459:
                    460: void
1.147     nicm      461: tty_putn(struct tty *tty, const void *buf, size_t len, u_int width)
1.5       nicm      462: {
1.243   ! nicm      463:        tty_add(tty, buf, len);
1.147     nicm      464:        tty->cx += width;
1.5       nicm      465: }
                    466:
1.207     nicm      467: static void
1.180     nicm      468: tty_set_italics(struct tty *tty)
                    469: {
                    470:        const char      *s;
                    471:
                    472:        if (tty_term_has(tty->term, TTYC_SITM)) {
1.191     nicm      473:                s = options_get_string(global_options, "default-terminal");
1.180     nicm      474:                if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) {
                    475:                        tty_putcode(tty, TTYC_SITM);
                    476:                        return;
                    477:                }
                    478:        }
                    479:        tty_putcode(tty, TTYC_SMSO);
                    480: }
                    481:
                    482: void
1.1       nicm      483: tty_set_title(struct tty *tty, const char *title)
                    484: {
1.105     nicm      485:        if (!tty_term_has(tty->term, TTYC_TSL) ||
                    486:            !tty_term_has(tty->term, TTYC_FSL))
1.1       nicm      487:                return;
                    488:
1.105     nicm      489:        tty_putcode(tty, TTYC_TSL);
1.1       nicm      490:        tty_puts(tty, title);
1.105     nicm      491:        tty_putcode(tty, TTYC_FSL);
1.1       nicm      492: }
                    493:
1.208     nicm      494: static void
1.107     nicm      495: tty_force_cursor_colour(struct tty *tty, const char *ccolour)
                    496: {
                    497:        if (*ccolour == '\0')
                    498:                tty_putcode(tty, TTYC_CR);
                    499:        else
1.160     nicm      500:                tty_putcode_ptr1(tty, TTYC_CS, ccolour);
1.138     nicm      501:        free(tty->ccolour);
1.107     nicm      502:        tty->ccolour = xstrdup(ccolour);
                    503: }
                    504:
                    505: void
                    506: tty_update_mode(struct tty *tty, int mode, struct screen *s)
1.1       nicm      507: {
                    508:        int     changed;
                    509:
1.197     nicm      510:        if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0)
1.107     nicm      511:                tty_force_cursor_colour(tty, s->ccolour);
                    512:
1.1       nicm      513:        if (tty->flags & TTY_NOCURSOR)
                    514:                mode &= ~MODE_CURSOR;
                    515:
                    516:        changed = mode ^ tty->mode;
1.183     nicm      517:        if (changed & MODE_BLINKING) {
                    518:                if (tty_term_has(tty->term, TTYC_CVVIS))
                    519:                        tty_putcode(tty, TTYC_CVVIS);
                    520:                else
                    521:                        tty_putcode(tty, TTYC_CNORM);
                    522:                changed |= MODE_CURSOR;
                    523:        }
                    524:        if (changed & MODE_CURSOR) {
                    525:                if (mode & MODE_CURSOR)
                    526:                        tty_putcode(tty, TTYC_CNORM);
                    527:                else
1.1       nicm      528:                        tty_putcode(tty, TTYC_CIVIS);
1.108     nicm      529:        }
1.181     nicm      530:        if (s != NULL && tty->cstyle != s->cstyle) {
1.160     nicm      531:                if (tty_term_has(tty->term, TTYC_SS)) {
1.108     nicm      532:                        if (s->cstyle == 0 &&
1.160     nicm      533:                            tty_term_has(tty->term, TTYC_SE))
                    534:                                tty_putcode(tty, TTYC_SE);
1.108     nicm      535:                        else
1.160     nicm      536:                                tty_putcode1(tty, TTYC_SS, s->cstyle);
1.108     nicm      537:                }
                    538:                tty->cstyle = s->cstyle;
1.1       nicm      539:        }
1.195     nicm      540:        if (changed & ALL_MOUSE_MODES) {
1.94      nicm      541:                if (mode & ALL_MOUSE_MODES) {
1.153     nicm      542:                        /*
                    543:                         * Enable the SGR (1006) extension unconditionally, as
1.221     nicm      544:                         * it is safe from misinterpretation.
1.153     nicm      545:                         */
                    546:                        tty_puts(tty, "\033[?1006h");
1.225     nicm      547:                        if (mode & MODE_MOUSE_ALL)
                    548:                                tty_puts(tty, "\033[?1003h");
                    549:                        else if (mode & MODE_MOUSE_BUTTON)
1.94      nicm      550:                                tty_puts(tty, "\033[?1002h");
1.98      nicm      551:                        else if (mode & MODE_MOUSE_STANDARD)
                    552:                                tty_puts(tty, "\033[?1000h");
1.86      nicm      553:                } else {
1.225     nicm      554:                        if (tty->mode & MODE_MOUSE_ALL)
                    555:                                tty_puts(tty, "\033[?1003l");
                    556:                        else if (tty->mode & MODE_MOUSE_BUTTON)
1.94      nicm      557:                                tty_puts(tty, "\033[?1002l");
1.98      nicm      558:                        else if (tty->mode & MODE_MOUSE_STANDARD)
                    559:                                tty_puts(tty, "\033[?1000l");
1.153     nicm      560:                        tty_puts(tty, "\033[?1006l");
1.86      nicm      561:                }
1.76      nicm      562:        }
                    563:        if (changed & MODE_KKEYPAD) {
                    564:                if (mode & MODE_KKEYPAD)
                    565:                        tty_putcode(tty, TTYC_SMKX);
                    566:                else
                    567:                        tty_putcode(tty, TTYC_RMKX);
1.115     nicm      568:        }
                    569:        if (changed & MODE_BRACKETPASTE) {
                    570:                if (mode & MODE_BRACKETPASTE)
                    571:                        tty_puts(tty, "\033[?2004h");
                    572:                else
                    573:                        tty_puts(tty, "\033[?2004l");
1.1       nicm      574:        }
                    575:        tty->mode = mode;
                    576: }
                    577:
1.207     nicm      578: static void
1.168     nicm      579: tty_emulate_repeat(struct tty *tty, enum tty_code_code code,
                    580:     enum tty_code_code code1, u_int n)
1.1       nicm      581: {
                    582:        if (tty_term_has(tty->term, code))
                    583:                tty_putcode1(tty, code, n);
                    584:        else {
                    585:                while (n-- > 0)
                    586:                        tty_putcode(tty, code1);
                    587:        }
                    588: }
                    589:
1.207     nicm      590: static void
1.133     nicm      591: tty_repeat_space(struct tty *tty, u_int n)
                    592: {
                    593:        while (n-- > 0)
                    594:                tty_putc(tty, ' ');
                    595: }
                    596:
1.1       nicm      597: /*
1.119     nicm      598:  * Is the region large enough to be worth redrawing once later rather than
                    599:  * probably several times now? Currently yes if it is more than 50% of the
                    600:  * pane.
                    601:  */
1.207     nicm      602: static int
1.194     nicm      603: tty_large_region(__unused struct tty *tty, const struct tty_ctx *ctx)
1.119     nicm      604: {
                    605:        struct window_pane      *wp = ctx->wp;
                    606:
                    607:        return (ctx->orlower - ctx->orupper >= screen_size_y(wp->screen) / 2);
                    608: }
                    609:
                    610: /*
1.176     nicm      611:  * Return if BCE is needed but the terminal doesn't have it - it'll need to be
                    612:  * emulated.
                    613:  */
1.207     nicm      614: static int
1.210     nicm      615: tty_fake_bce(const struct tty *tty, const struct window_pane *wp, u_int bg)
1.176     nicm      616: {
                    617:        struct grid_cell        gc;
                    618:
1.210     nicm      619:        if (tty_term_flag(tty->term, TTYC_BCE))
                    620:                return (0);
                    621:
1.176     nicm      622:        memcpy(&gc, &grid_default_cell, sizeof gc);
1.203     nicm      623:        if (wp != NULL)
                    624:                tty_default_colours(&gc, wp);
1.176     nicm      625:
1.210     nicm      626:        if (bg != 8 || gc.bg != 8)
                    627:                return (1);
                    628:        return (0);
1.176     nicm      629: }
                    630:
                    631: /*
1.1       nicm      632:  * Redraw scroll region using data from screen (already updated). Used when
                    633:  * CSR not supported, or window is a pane that doesn't take up the full
                    634:  * width of the terminal.
                    635:  */
1.207     nicm      636: static void
1.24      nicm      637: tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      638: {
1.14      nicm      639:        struct window_pane      *wp = ctx->wp;
                    640:        struct screen           *s = wp->screen;
1.204     nicm      641:        u_int                    i;
1.1       nicm      642:
                    643:        /*
1.119     nicm      644:         * If region is large, schedule a window redraw. In most cases this is
                    645:         * likely to be followed by some more scrolling.
1.1       nicm      646:         */
1.119     nicm      647:        if (tty_large_region(tty, ctx)) {
1.1       nicm      648:                wp->flags |= PANE_REDRAW;
                    649:                return;
                    650:        }
                    651:
1.14      nicm      652:        if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
                    653:                for (i = ctx->ocy; i < screen_size_y(s); i++)
1.176     nicm      654:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      655:        } else {
1.14      nicm      656:                for (i = ctx->orupper; i <= ctx->orlower; i++)
1.176     nicm      657:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      658:        }
                    659: }
                    660:
                    661: void
1.176     nicm      662: tty_draw_pane(struct tty *tty, const struct window_pane *wp, u_int py, u_int ox,
                    663:     u_int oy)
                    664: {
                    665:        tty_draw_line(tty, wp, wp->screen, py, ox, oy);
                    666: }
                    667:
                    668: void
                    669: tty_draw_line(struct tty *tty, const struct window_pane *wp,
                    670:     struct screen *s, u_int py, u_int ox, u_int oy)
1.1       nicm      671: {
1.209     nicm      672:        struct grid_cell         gc, tmp_gc;
1.46      nicm      673:        struct grid_line        *gl;
1.1       nicm      674:        u_int                    i, sx;
1.181     nicm      675:        int                      flags;
1.1       nicm      676:
1.181     nicm      677:        flags = tty->flags & TTY_NOCURSOR;
                    678:        tty->flags |= TTY_NOCURSOR;
                    679:        tty_update_mode(tty, tty->mode, s);
1.35      nicm      680:
1.214     nicm      681:        tty_region_off(tty);
                    682:        tty_margin_off(tty);
                    683:
1.1       nicm      684:        sx = screen_size_x(s);
1.19      nicm      685:        if (sx > s->grid->linedata[s->grid->hsize + py].cellsize)
                    686:                sx = s->grid->linedata[s->grid->hsize + py].cellsize;
1.1       nicm      687:        if (sx > tty->sx)
                    688:                sx = tty->sx;
                    689:
1.46      nicm      690:        /*
1.174     nicm      691:         * Don't move the cursor to the start position if it will wrap there
1.50      nicm      692:         * itself.
1.46      nicm      693:         */
                    694:        gl = NULL;
                    695:        if (py != 0)
                    696:                gl = &s->grid->linedata[s->grid->hsize + py - 1];
1.83      nicm      697:        if (oy + py == 0 || gl == NULL || !(gl->flags & GRID_LINE_WRAPPED) ||
1.47      nicm      698:            tty->cx < tty->sx || ox != 0 ||
                    699:            (oy + py != tty->cy + 1 && tty->cy != s->rlower + oy))
1.46      nicm      700:                tty_cursor(tty, ox, oy + py);
                    701:
1.1       nicm      702:        for (i = 0; i < sx; i++) {
1.193     nicm      703:                grid_view_get_cell(s->grid, i, py, &gc);
1.209     nicm      704:                if (gc.flags & GRID_FLAG_SELECTED) {
                    705:                        screen_select_cell(s, &tmp_gc, &gc);
                    706:                        tty_cell(tty, &tmp_gc, wp);
                    707:                } else
                    708:                        tty_cell(tty, &gc, wp);
1.1       nicm      709:        }
                    710:
1.181     nicm      711:        if (sx < tty->sx) {
1.210     nicm      712:                tty_default_attributes(tty, wp, 8);
1.181     nicm      713:
                    714:                tty_cursor(tty, ox + sx, oy + py);
                    715:                if (sx != screen_size_x(s) &&
                    716:                    ox + screen_size_x(s) >= tty->sx &&
                    717:                    tty_term_has(tty->term, TTYC_EL) &&
1.210     nicm      718:                    !tty_fake_bce(tty, wp, 8))
1.181     nicm      719:                        tty_putcode(tty, TTYC_EL);
                    720:                else
                    721:                        tty_repeat_space(tty, screen_size_x(s) - sx);
1.35      nicm      722:        }
1.1       nicm      723:
1.181     nicm      724:        tty->flags = (tty->flags & ~TTY_NOCURSOR) | flags;
1.107     nicm      725:        tty_update_mode(tty, tty->mode, s);
1.15      nicm      726: }
                    727:
1.201     nicm      728: static int
1.182     nicm      729: tty_client_ready(struct client *c, struct window_pane *wp)
                    730: {
                    731:        if (c->session == NULL || c->tty.term == NULL)
                    732:                return (0);
                    733:        if (c->flags & CLIENT_SUSPENDED)
                    734:                return (0);
                    735:        if (c->tty.flags & TTY_FREEZE)
                    736:                return (0);
                    737:        if (c->session->curw->window != wp->window)
                    738:                return (0);
                    739:        return (1);
                    740: }
                    741:
1.15      nicm      742: void
1.182     nicm      743: tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *),
                    744:     struct tty_ctx *ctx)
1.15      nicm      745: {
                    746:        struct window_pane      *wp = ctx->wp;
                    747:        struct client           *c;
                    748:
1.75      nicm      749:        /* wp can be NULL if updating the screen but not the terminal. */
1.15      nicm      750:        if (wp == NULL)
                    751:                return;
                    752:
                    753:        if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
                    754:                return;
1.129     nicm      755:        if (!window_pane_visible(wp) || wp->flags & PANE_DROP)
1.15      nicm      756:                return;
                    757:
1.178     nicm      758:        TAILQ_FOREACH(c, &clients, entry) {
1.182     nicm      759:                if (!tty_client_ready(c, wp))
1.15      nicm      760:                        continue;
                    761:
1.139     nicm      762:                ctx->xoff = wp->xoff;
                    763:                ctx->yoff = wp->yoff;
                    764:                if (status_at_line(c) == 0)
                    765:                        ctx->yoff++;
1.113     nicm      766:
1.139     nicm      767:                cmdfn(&c->tty, ctx);
1.1       nicm      768:        }
                    769: }
                    770:
                    771: void
1.24      nicm      772: tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      773: {
1.77      nicm      774:        struct window_pane      *wp = ctx->wp;
1.1       nicm      775:
1.210     nicm      776:        if (!tty_pane_full_width(tty, ctx) ||
                    777:            tty_fake_bce(tty, wp, ctx->bg) ||
                    778:            (!tty_term_has(tty->term, TTYC_ICH) &&
                    779:            !tty_term_has(tty->term, TTYC_ICH1))) {
1.176     nicm      780:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      781:                return;
                    782:        }
                    783:
1.210     nicm      784:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      785:
1.77      nicm      786:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      787:
1.206     nicm      788:        tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
1.1       nicm      789: }
                    790:
                    791: void
1.24      nicm      792: tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      793: {
1.77      nicm      794:        struct window_pane      *wp = ctx->wp;
1.1       nicm      795:
1.210     nicm      796:        if (!tty_pane_full_width(tty, ctx) ||
                    797:            tty_fake_bce(tty, wp, ctx->bg) ||
1.26      nicm      798:            (!tty_term_has(tty->term, TTYC_DCH) &&
                    799:            !tty_term_has(tty->term, TTYC_DCH1))) {
1.176     nicm      800:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      801:                return;
                    802:        }
                    803:
1.210     nicm      804:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      805:
1.77      nicm      806:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      807:
1.206     nicm      808:        tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
1.146     nicm      809: }
                    810:
                    811: void
                    812: tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx)
                    813: {
                    814:        u_int   i;
                    815:
1.176     nicm      816:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.146     nicm      817:
                    818:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    819:
1.210     nicm      820:        if (tty_term_has(tty->term, TTYC_ECH) &&
                    821:            !tty_fake_bce(tty, ctx->wp, ctx->bg))
1.146     nicm      822:                tty_putcode1(tty, TTYC_ECH, ctx->num);
                    823:        else {
                    824:                for (i = 0; i < ctx->num; i++)
                    825:                        tty_putc(tty, ' ');
                    826:        }
1.1       nicm      827: }
                    828:
                    829: void
1.24      nicm      830: tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      831: {
1.210     nicm      832:        if (!tty_pane_full_width(tty, ctx) ||
                    833:            tty_fake_bce(tty, ctx->wp, ctx->bg) ||
1.77      nicm      834:            !tty_term_has(tty->term, TTYC_CSR) ||
1.72      nicm      835:            !tty_term_has(tty->term, TTYC_IL1)) {
1.14      nicm      836:                tty_redraw_region(tty, ctx);
1.1       nicm      837:                return;
                    838:        }
                    839:
1.210     nicm      840:        tty_default_attributes(tty, ctx->wp, ctx->bg);
1.1       nicm      841:
1.77      nicm      842:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.214     nicm      843:        tty_margin_off(tty);
1.77      nicm      844:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      845:
1.12      nicm      846:        tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
1.1       nicm      847: }
                    848:
                    849: void
1.24      nicm      850: tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      851: {
1.210     nicm      852:        if (!tty_pane_full_width(tty, ctx) ||
                    853:            tty_fake_bce(tty, ctx->wp, ctx->bg) ||
1.72      nicm      854:            !tty_term_has(tty->term, TTYC_CSR) ||
                    855:            !tty_term_has(tty->term, TTYC_DL1)) {
1.14      nicm      856:                tty_redraw_region(tty, ctx);
1.1       nicm      857:                return;
                    858:        }
                    859:
1.210     nicm      860:        tty_default_attributes(tty, ctx->wp, ctx->bg);
1.1       nicm      861:
1.77      nicm      862:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.214     nicm      863:        tty_margin_off(tty);
1.77      nicm      864:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      865:
1.12      nicm      866:        tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
1.1       nicm      867: }
                    868:
                    869: void
1.24      nicm      870: tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      871: {
1.77      nicm      872:        struct window_pane      *wp = ctx->wp;
1.12      nicm      873:        struct screen           *s = wp->screen;
1.229     nicm      874:        u_int                    sx = screen_size_x(s);
1.1       nicm      875:
1.210     nicm      876:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      877:
1.77      nicm      878:        tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.41      nicm      879:
1.210     nicm      880:        if (tty_pane_full_width(tty, ctx) &&
                    881:            !tty_fake_bce(tty, wp, ctx->bg) &&
1.176     nicm      882:            tty_term_has(tty->term, TTYC_EL))
1.1       nicm      883:                tty_putcode(tty, TTYC_EL);
1.133     nicm      884:        else
1.229     nicm      885:                tty_repeat_space(tty, sx);
1.1       nicm      886: }
                    887:
                    888: void
1.24      nicm      889: tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      890: {
1.77      nicm      891:        struct window_pane      *wp = ctx->wp;
1.12      nicm      892:        struct screen           *s = wp->screen;
1.229     nicm      893:        u_int                    sx = screen_size_x(s);
1.1       nicm      894:
1.210     nicm      895:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      896:
1.41      nicm      897:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    898:
1.176     nicm      899:        if (tty_pane_full_width(tty, ctx) &&
1.210     nicm      900:            tty_term_has(tty->term, TTYC_EL) &&
                    901:            !tty_fake_bce(tty, wp, ctx->bg))
1.1       nicm      902:                tty_putcode(tty, TTYC_EL);
1.133     nicm      903:        else
1.229     nicm      904:                tty_repeat_space(tty, sx - ctx->ocx);
1.1       nicm      905: }
                    906:
                    907: void
1.24      nicm      908: tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      909: {
1.210     nicm      910:        struct window_pane      *wp = ctx->wp;
                    911:
                    912:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      913:
1.210     nicm      914:        if (ctx->xoff == 0 &&
                    915:            tty_term_has(tty->term, TTYC_EL1) &&
1.238     nicm      916:            !tty_fake_bce(tty, ctx->wp, ctx->bg)) {
                    917:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      918:                tty_putcode(tty, TTYC_EL1);
1.238     nicm      919:        } else {
                    920:                tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.133     nicm      921:                tty_repeat_space(tty, ctx->ocx + 1);
1.238     nicm      922:        }
1.1       nicm      923: }
                    924:
                    925: void
1.24      nicm      926: tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      927: {
1.56      nicm      928:        if (ctx->ocy != ctx->orupper)
                    929:                return;
                    930:
1.210     nicm      931:        if (!tty_pane_full_width(tty, ctx) ||
                    932:            tty_fake_bce(tty, ctx->wp, ctx->bg) ||
1.70      nicm      933:            !tty_term_has(tty->term, TTYC_CSR) ||
                    934:            !tty_term_has(tty->term, TTYC_RI)) {
1.14      nicm      935:                tty_redraw_region(tty, ctx);
1.1       nicm      936:                return;
                    937:        }
                    938:
1.176     nicm      939:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.77      nicm      940:
1.56      nicm      941:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.214     nicm      942:        tty_margin_off(tty);
1.56      nicm      943:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
1.77      nicm      944:
1.56      nicm      945:        tty_putcode(tty, TTYC_RI);
1.1       nicm      946: }
                    947:
                    948: void
1.24      nicm      949: tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      950: {
1.77      nicm      951:        struct window_pane      *wp = ctx->wp;
1.1       nicm      952:
1.56      nicm      953:        if (ctx->ocy != ctx->orlower)
                    954:                return;
                    955:
1.212     nicm      956:        if ((!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) ||
1.210     nicm      957:            tty_fake_bce(tty, wp, ctx->bg) ||
1.1       nicm      958:            !tty_term_has(tty->term, TTYC_CSR)) {
1.236     nicm      959:                tty_redraw_region(tty, ctx);
1.1       nicm      960:                return;
                    961:        }
1.52      nicm      962:
1.176     nicm      963:        tty_attributes(tty, &grid_default_cell, wp);
1.77      nicm      964:
1.56      nicm      965:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.212     nicm      966:        tty_margin_pane(tty, ctx);
                    967:
                    968:        /*
                    969:         * If we want to wrap a pane, the cursor needs to be exactly on the
                    970:         * right of the region. But if the pane isn't on the right, it may be
                    971:         * off the edge - if so, move the cursor back to the right.
                    972:         */
                    973:        if (ctx->xoff + ctx->ocx > tty->rright)
1.216     nicm      974:                tty_cursor(tty, tty->rright, ctx->yoff + ctx->ocy);
1.212     nicm      975:        else
                    976:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.77      nicm      977:
1.56      nicm      978:        tty_putc(tty, '\n');
1.240     nicm      979: }
                    980:
                    981: void
                    982: tty_cmd_scrollup(struct tty *tty, const struct tty_ctx *ctx)
                    983: {
                    984:        struct window_pane      *wp = ctx->wp;
                    985:        u_int                    i;
                    986:
                    987:        if ((!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) ||
                    988:            tty_fake_bce(tty, wp, ctx->bg) ||
                    989:            !tty_term_has(tty->term, TTYC_CSR)) {
                    990:                tty_redraw_region(tty, ctx);
                    991:                return;
                    992:        }
                    993:
                    994:        tty_attributes(tty, &grid_default_cell, wp);
                    995:
                    996:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                    997:        tty_margin_pane(tty, ctx);
                    998:
                    999:        if (ctx->num == 1 || !tty_term_has(tty->term, TTYC_INDN)) {
1.241     nicm     1000:                tty_cursor(tty, tty->rright, tty->rlower);
1.240     nicm     1001:                for (i = 0; i < ctx->num; i++)
                   1002:                        tty_putc(tty, '\n');
                   1003:        } else
                   1004:                tty_putcode1(tty, TTYC_INDN, ctx->num);
1.1       nicm     1005: }
                   1006:
                   1007: void
1.24      nicm     1008: tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1009: {
1.77      nicm     1010:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1011:        struct screen           *s = wp->screen;
1.204     nicm     1012:        u_int                    i, j;
1.229     nicm     1013:        u_int                    sx = screen_size_x(s), sy = screen_size_y(s);
1.1       nicm     1014:
1.210     nicm     1015:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm     1016:
1.229     nicm     1017:        tty_region_pane(tty, ctx, 0, sy - 1);
1.214     nicm     1018:        tty_margin_off(tty);
1.39      nicm     1019:
1.176     nicm     1020:        if (tty_pane_full_width(tty, ctx) &&
1.229     nicm     1021:            status_at_line(tty->client) <= 0 &&
                   1022:            tty_term_has(tty->term, TTYC_ED)) {
                   1023:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                   1024:                tty_putcode(tty, TTYC_ED);
                   1025:        } else if (tty_pane_full_width(tty, ctx) &&
1.210     nicm     1026:            tty_term_has(tty->term, TTYC_EL) &&
                   1027:            !tty_fake_bce(tty, wp, ctx->bg)) {
1.229     nicm     1028:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm     1029:                tty_putcode(tty, TTYC_EL);
1.229     nicm     1030:                if (ctx->ocy != sy - 1) {
1.41      nicm     1031:                        tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
1.229     nicm     1032:                        for (i = ctx->ocy + 1; i < sy; i++) {
1.1       nicm     1033:                                tty_putcode(tty, TTYC_EL);
1.229     nicm     1034:                                if (i == sy - 1)
1.1       nicm     1035:                                        continue;
                   1036:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1037:                                tty->cy++;
                   1038:                        }
                   1039:                }
                   1040:        } else {
1.229     nicm     1041:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                   1042:                tty_repeat_space(tty, sx - ctx->ocx);
                   1043:                for (j = ctx->ocy + 1; j < sy; j++) {
1.41      nicm     1044:                        tty_cursor_pane(tty, ctx, 0, j);
1.229     nicm     1045:                        tty_repeat_space(tty, sx);
1.1       nicm     1046:                }
                   1047:        }
                   1048: }
                   1049:
                   1050: void
1.24      nicm     1051: tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1052: {
1.77      nicm     1053:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1054:        struct screen           *s = wp->screen;
1.204     nicm     1055:        u_int                    i, j;
1.229     nicm     1056:        u_int                    sx = screen_size_x(s), sy = screen_size_y(s);
1.1       nicm     1057:
1.227     nicm     1058:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm     1059:
1.229     nicm     1060:        tty_region_pane(tty, ctx, 0, sy - 1);
1.214     nicm     1061:        tty_margin_off(tty);
1.39      nicm     1062:
1.230     nicm     1063:        if (tty_pane_full_width(tty, ctx) &&
1.210     nicm     1064:            tty_term_has(tty->term, TTYC_EL) &&
                   1065:            !tty_fake_bce(tty, wp, ctx->bg)) {
1.229     nicm     1066:                tty_cursor_pane(tty, ctx, 0, 0);
1.14      nicm     1067:                for (i = 0; i < ctx->ocy; i++) {
1.1       nicm     1068:                        tty_putcode(tty, TTYC_EL);
                   1069:                        tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1070:                        tty->cy++;
                   1071:                }
                   1072:        } else {
1.229     nicm     1073:                tty_cursor_pane(tty, ctx, 0, 0);
1.14      nicm     1074:                for (j = 0; j < ctx->ocy; j++) {
1.41      nicm     1075:                        tty_cursor_pane(tty, ctx, 0, j);
1.229     nicm     1076:                        tty_repeat_space(tty, sx);
1.1       nicm     1077:                }
                   1078:        }
1.229     nicm     1079:        tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.133     nicm     1080:        tty_repeat_space(tty, ctx->ocx + 1);
1.1       nicm     1081: }
                   1082:
                   1083: void
1.24      nicm     1084: tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1085: {
1.77      nicm     1086:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1087:        struct screen           *s = wp->screen;
1.204     nicm     1088:        u_int                    i, j;
1.229     nicm     1089:        u_int                    sx = screen_size_x(s), sy = screen_size_y(s);
1.1       nicm     1090:
1.210     nicm     1091:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm     1092:
1.229     nicm     1093:        tty_region_pane(tty, ctx, 0, sy - 1);
1.214     nicm     1094:        tty_margin_off(tty);
1.39      nicm     1095:
1.176     nicm     1096:        if (tty_pane_full_width(tty, ctx) &&
1.229     nicm     1097:            status_at_line(tty->client) <= 0 &&
                   1098:            tty_term_has(tty->term, TTYC_ED)) {
                   1099:                tty_cursor_pane(tty, ctx, 0, 0);
                   1100:                tty_putcode(tty, TTYC_ED);
1.230     nicm     1101:        } else if (tty_pane_full_width(tty, ctx) &&
1.210     nicm     1102:            tty_term_has(tty->term, TTYC_EL) &&
                   1103:            !tty_fake_bce(tty, wp, ctx->bg)) {
1.229     nicm     1104:                tty_cursor_pane(tty, ctx, 0, 0);
                   1105:                for (i = 0; i < sy; i++) {
1.1       nicm     1106:                        tty_putcode(tty, TTYC_EL);
1.229     nicm     1107:                        if (i != sy - 1) {
1.1       nicm     1108:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1109:                                tty->cy++;
                   1110:                        }
                   1111:                }
                   1112:        } else {
1.229     nicm     1113:                tty_cursor_pane(tty, ctx, 0, 0);
                   1114:                for (j = 0; j < sy; j++) {
1.41      nicm     1115:                        tty_cursor_pane(tty, ctx, 0, j);
1.229     nicm     1116:                        tty_repeat_space(tty, sx);
1.1       nicm     1117:                }
1.4       nicm     1118:        }
                   1119: }
                   1120:
                   1121: void
1.24      nicm     1122: tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
1.4       nicm     1123: {
1.12      nicm     1124:        struct window_pane      *wp = ctx->wp;
                   1125:        struct screen           *s = wp->screen;
                   1126:        u_int                    i, j;
1.4       nicm     1127:
1.176     nicm     1128:        tty_attributes(tty, &grid_default_cell, wp);
1.4       nicm     1129:
1.39      nicm     1130:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.214     nicm     1131:        tty_margin_off(tty);
1.4       nicm     1132:
                   1133:        for (j = 0; j < screen_size_y(s); j++) {
1.41      nicm     1134:                tty_cursor_pane(tty, ctx, 0, j);
1.4       nicm     1135:                for (i = 0; i < screen_size_x(s); i++)
                   1136:                        tty_putc(tty, 'E');
1.1       nicm     1137:        }
                   1138: }
                   1139:
                   1140: void
1.24      nicm     1141: tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1142: {
1.222     nicm     1143:        if (ctx->xoff + ctx->ocx > tty->sx - 1 && ctx->ocy == ctx->orlower) {
                   1144:                if (tty_pane_full_width(tty, ctx))
                   1145:                        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                   1146:                else
                   1147:                        tty_margin_off(tty);
                   1148:        }
1.46      nicm     1149:
1.233     nicm     1150:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm     1151:
1.237     nicm     1152:        tty_cell(tty, ctx->cell, ctx->wp);
1.239     nicm     1153: }
                   1154:
                   1155: void
                   1156: tty_cmd_cells(struct tty *tty, const struct tty_ctx *ctx)
                   1157: {
                   1158:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                   1159:
                   1160:        tty_attributes(tty, ctx->cell, ctx->wp);
                   1161:        tty_putn(tty, ctx->ptr, ctx->num, ctx->num);
1.106     nicm     1162: }
                   1163:
                   1164: void
                   1165: tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx)
                   1166: {
                   1167:        char    *buf;
                   1168:        size_t   off;
                   1169:
                   1170:        if (!tty_term_has(tty->term, TTYC_MS))
                   1171:                return;
                   1172:
                   1173:        off = 4 * ((ctx->num + 2) / 3) + 1; /* storage for base64 */
                   1174:        buf = xmalloc(off);
                   1175:
                   1176:        b64_ntop(ctx->ptr, ctx->num, buf, off);
                   1177:        tty_putcode_ptr2(tty, TTYC_MS, "", buf);
                   1178:
1.138     nicm     1179:        free(buf);
1.100     nicm     1180: }
                   1181:
                   1182: void
                   1183: tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
                   1184: {
                   1185:        u_int    i;
                   1186:        u_char  *str = ctx->ptr;
                   1187:
                   1188:        for (i = 0; i < ctx->num; i++)
                   1189:                tty_putc(tty, str[i]);
1.242     nicm     1190:        tty_invalidate(tty);
1.1       nicm     1191: }
                   1192:
1.207     nicm     1193: static void
1.176     nicm     1194: tty_cell(struct tty *tty, const struct grid_cell *gc,
                   1195:     const struct window_pane *wp)
1.1       nicm     1196: {
1.193     nicm     1197:        u_int   i;
1.1       nicm     1198:
                   1199:        /* Skip last character if terminal is stupid. */
1.211     nicm     1200:        if ((tty->term->flags & TERM_EARLYWRAP) &&
                   1201:            tty->cy == tty->sy - 1 &&
                   1202:            tty->cx == tty->sx - 1)
1.1       nicm     1203:                return;
                   1204:
                   1205:        /* If this is a padding character, do nothing. */
                   1206:        if (gc->flags & GRID_FLAG_PADDING)
                   1207:                return;
                   1208:
                   1209:        /* Set the attributes. */
1.176     nicm     1210:        tty_attributes(tty, gc, wp);
1.1       nicm     1211:
1.147     nicm     1212:        /* Get the cell and if ASCII write with putc to do ACS translation. */
1.193     nicm     1213:        if (gc->data.size == 1) {
                   1214:                if (*gc->data.data < 0x20 || *gc->data.data == 0x7f)
1.1       nicm     1215:                        return;
1.193     nicm     1216:                tty_putc(tty, *gc->data.data);
1.1       nicm     1217:                return;
                   1218:        }
                   1219:
1.147     nicm     1220:        /* If not UTF-8, write _. */
1.1       nicm     1221:        if (!(tty->flags & TTY_UTF8)) {
1.193     nicm     1222:                for (i = 0; i < gc->data.width; i++)
1.1       nicm     1223:                        tty_putc(tty, '_');
                   1224:                return;
                   1225:        }
                   1226:
1.147     nicm     1227:        /* Write the data. */
1.193     nicm     1228:        tty_putn(tty, gc->data.data, gc->data.size, gc->data.width);
1.1       nicm     1229: }
                   1230:
                   1231: void
                   1232: tty_reset(struct tty *tty)
                   1233: {
                   1234:        struct grid_cell        *gc = &tty->cell;
                   1235:
1.228     nicm     1236:        if (!grid_cells_equal(gc, &grid_default_cell)) {
                   1237:                if ((gc->attr & GRID_ATTR_CHARSET) && tty_use_acs(tty))
                   1238:                        tty_putcode(tty, TTYC_RMACS);
                   1239:                tty_putcode(tty, TTYC_SGR0);
                   1240:                memcpy(gc, &grid_default_cell, sizeof *gc);
                   1241:        }
1.1       nicm     1242:
1.228     nicm     1243:        memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell);
                   1244:        tty->last_wp = -1;
1.242     nicm     1245: }
                   1246:
                   1247: static void
                   1248: tty_invalidate(struct tty *tty)
                   1249: {
                   1250:        memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
                   1251:
                   1252:        memcpy(&tty->last_cell, &grid_default_cell, sizeof tty->last_cell);
                   1253:        tty->last_wp = -1;
                   1254:
                   1255:        tty->cx = tty->cy = UINT_MAX;
                   1256:
                   1257:        tty->rupper = tty->rleft = UINT_MAX;
                   1258:        tty->rlower = tty->rright = UINT_MAX;
                   1259:
                   1260:        if (tty->flags & TTY_STARTED) {
                   1261:                tty_putcode(tty, TTYC_SGR0);
                   1262:
                   1263:                tty->mode = ALL_MODES;
                   1264:                tty_update_mode(tty, MODE_CURSOR, NULL);
                   1265:
                   1266:                tty_cursor(tty, 0, 0);
                   1267:                tty_region_off(tty);
                   1268:                tty_margin_off(tty);
                   1269:        } else
                   1270:                tty->mode = MODE_CURSOR;
1.1       nicm     1271: }
                   1272:
1.214     nicm     1273: /* Turn off margin. */
                   1274: void
                   1275: tty_region_off(struct tty *tty)
                   1276: {
                   1277:        tty_region(tty, 0, tty->sy - 1);
                   1278: }
                   1279:
1.40      nicm     1280: /* Set region inside pane. */
1.208     nicm     1281: static void
1.196     nicm     1282: tty_region_pane(struct tty *tty, const struct tty_ctx *ctx, u_int rupper,
                   1283:     u_int rlower)
1.1       nicm     1284: {
1.113     nicm     1285:        tty_region(tty, ctx->yoff + rupper, ctx->yoff + rlower);
1.39      nicm     1286: }
                   1287:
1.40      nicm     1288: /* Set region at absolute position. */
1.214     nicm     1289: static void
1.40      nicm     1290: tty_region(struct tty *tty, u_int rupper, u_int rlower)
1.39      nicm     1291: {
                   1292:        if (tty->rlower == rlower && tty->rupper == rupper)
                   1293:                return;
1.1       nicm     1294:        if (!tty_term_has(tty->term, TTYC_CSR))
                   1295:                return;
1.39      nicm     1296:
                   1297:        tty->rupper = rupper;
                   1298:        tty->rlower = rlower;
1.55      nicm     1299:
                   1300:        /*
                   1301:         * Some terminals (such as PuTTY) do not correctly reset the cursor to
                   1302:         * 0,0 if it is beyond the last column (they do not reset their wrap
                   1303:         * flag so further output causes a line feed). As a workaround, do an
                   1304:         * explicit move to 0 first.
                   1305:         */
                   1306:        if (tty->cx >= tty->sx)
                   1307:                tty_cursor(tty, 0, tty->cy);
1.42      nicm     1308:
1.39      nicm     1309:        tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1.231     nicm     1310:        tty->cx = tty->cy = 0;
1.212     nicm     1311: }
                   1312:
1.214     nicm     1313: /* Turn off margin. */
                   1314: void
                   1315: tty_margin_off(struct tty *tty)
                   1316: {
                   1317:        tty_margin(tty, 0, tty->sx - 1);
                   1318: }
                   1319:
1.212     nicm     1320: /* Set margin inside pane. */
                   1321: static void
                   1322: tty_margin_pane(struct tty *tty, const struct tty_ctx *ctx)
                   1323: {
                   1324:        tty_margin(tty, ctx->xoff, ctx->xoff + ctx->wp->sx - 1);
                   1325: }
                   1326:
                   1327: /* Set margin at absolute position. */
1.214     nicm     1328: static void
1.212     nicm     1329: tty_margin(struct tty *tty, u_int rleft, u_int rright)
                   1330: {
                   1331:        char s[64];
                   1332:
                   1333:        if (!tty_use_margin(tty))
                   1334:                return;
                   1335:        if (tty->rleft == rleft && tty->rright == rright)
                   1336:                return;
                   1337:
1.232     nicm     1338:        tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1.231     nicm     1339:
1.212     nicm     1340:        tty->rleft = rleft;
                   1341:        tty->rright = rright;
                   1342:
1.232     nicm     1343:        if (rleft == 0 && rright == tty->sx - 1)
                   1344:                snprintf(s, sizeof s, "\033[s");
                   1345:        else
                   1346:                snprintf(s, sizeof s, "\033[%u;%us", rleft + 1, rright + 1);
1.212     nicm     1347:        tty_puts(tty, s);
1.231     nicm     1348:        tty->cx = tty->cy = 0;
1.1       nicm     1349: }
                   1350:
1.42      nicm     1351: /* Move cursor inside pane. */
1.208     nicm     1352: static void
1.41      nicm     1353: tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
                   1354: {
1.113     nicm     1355:        tty_cursor(tty, ctx->xoff + cx, ctx->yoff + cy);
1.41      nicm     1356: }
                   1357:
1.42      nicm     1358: /* Move cursor to absolute position. */
1.41      nicm     1359: void
                   1360: tty_cursor(struct tty *tty, u_int cx, u_int cy)
1.1       nicm     1361: {
1.42      nicm     1362:        struct tty_term *term = tty->term;
                   1363:        u_int            thisx, thisy;
                   1364:        int              change;
1.77      nicm     1365:
1.42      nicm     1366:        if (cx > tty->sx - 1)
                   1367:                cx = tty->sx - 1;
                   1368:
                   1369:        thisx = tty->cx;
                   1370:        thisy = tty->cy;
                   1371:
                   1372:        /* No change. */
                   1373:        if (cx == thisx && cy == thisy)
                   1374:                return;
                   1375:
1.43      nicm     1376:        /* Very end of the line, just use absolute movement. */
                   1377:        if (thisx > tty->sx - 1)
                   1378:                goto absolute;
                   1379:
1.42      nicm     1380:        /* Move to home position (0, 0). */
                   1381:        if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
                   1382:                tty_putcode(tty, TTYC_HOME);
                   1383:                goto out;
                   1384:        }
                   1385:
                   1386:        /* Zero on the next line. */
1.48      nicm     1387:        if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower) {
1.1       nicm     1388:                tty_putc(tty, '\r');
1.42      nicm     1389:                tty_putc(tty, '\n');
                   1390:                goto out;
                   1391:        }
                   1392:
1.45      nicm     1393:        /* Moving column or row. */
1.42      nicm     1394:        if (cy == thisy) {
1.45      nicm     1395:                /*
                   1396:                 * Moving column only, row staying the same.
                   1397:                 */
                   1398:
1.42      nicm     1399:                /* To left edge. */
1.202     nicm     1400:                if (cx == 0) {
1.42      nicm     1401:                        tty_putc(tty, '\r');
                   1402:                        goto out;
                   1403:                }
                   1404:
                   1405:                /* One to the left. */
                   1406:                if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) {
                   1407:                        tty_putcode(tty, TTYC_CUB1);
                   1408:                        goto out;
                   1409:                }
                   1410:
                   1411:                /* One to the right. */
                   1412:                if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) {
                   1413:                        tty_putcode(tty, TTYC_CUF1);
                   1414:                        goto out;
                   1415:                }
                   1416:
                   1417:                /* Calculate difference. */
                   1418:                change = thisx - cx;    /* +ve left, -ve right */
                   1419:
                   1420:                /*
                   1421:                 * Use HPA if change is larger than absolute, otherwise move
                   1422:                 * the cursor with CUB/CUF.
                   1423:                 */
1.87      nicm     1424:                if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) {
1.42      nicm     1425:                        tty_putcode1(tty, TTYC_HPA, cx);
                   1426:                        goto out;
                   1427:                } else if (change > 0 && tty_term_has(term, TTYC_CUB)) {
1.202     nicm     1428:                        if (change == 2 && tty_term_has(term, TTYC_CUB1)) {
                   1429:                                tty_putcode(tty, TTYC_CUB1);
                   1430:                                tty_putcode(tty, TTYC_CUB1);
                   1431:                                goto out;
                   1432:                        }
1.42      nicm     1433:                        tty_putcode1(tty, TTYC_CUB, change);
                   1434:                        goto out;
                   1435:                } else if (change < 0 && tty_term_has(term, TTYC_CUF)) {
                   1436:                        tty_putcode1(tty, TTYC_CUF, -change);
                   1437:                        goto out;
                   1438:                }
1.45      nicm     1439:        } else if (cx == thisx) {
                   1440:                /*
                   1441:                 * Moving row only, column staying the same.
                   1442:                 */
1.42      nicm     1443:
                   1444:                /* One above. */
1.77      nicm     1445:                if (thisy != tty->rupper &&
1.42      nicm     1446:                    cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) {
                   1447:                        tty_putcode(tty, TTYC_CUU1);
                   1448:                        goto out;
                   1449:                }
                   1450:
                   1451:                /* One below. */
1.49      nicm     1452:                if (thisy != tty->rlower &&
1.42      nicm     1453:                    cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) {
                   1454:                        tty_putcode(tty, TTYC_CUD1);
                   1455:                        goto out;
                   1456:                }
                   1457:
                   1458:                /* Calculate difference. */
                   1459:                change = thisy - cy;    /* +ve up, -ve down */
                   1460:
                   1461:                /*
1.77      nicm     1462:                 * Try to use VPA if change is larger than absolute or if this
                   1463:                 * change would cross the scroll region, otherwise use CUU/CUD.
1.42      nicm     1464:                 */
1.87      nicm     1465:                if ((u_int) abs(change) > cy ||
1.42      nicm     1466:                    (change < 0 && cy - change > tty->rlower) ||
1.44      nicm     1467:                    (change > 0 && cy - change < tty->rupper)) {
                   1468:                            if (tty_term_has(term, TTYC_VPA)) {
                   1469:                                    tty_putcode1(tty, TTYC_VPA, cy);
                   1470:                                    goto out;
                   1471:                            }
1.42      nicm     1472:                } else if (change > 0 && tty_term_has(term, TTYC_CUU)) {
                   1473:                        tty_putcode1(tty, TTYC_CUU, change);
                   1474:                        goto out;
                   1475:                } else if (change < 0 && tty_term_has(term, TTYC_CUD)) {
                   1476:                        tty_putcode1(tty, TTYC_CUD, -change);
                   1477:                        goto out;
                   1478:                }
                   1479:        }
                   1480:
1.43      nicm     1481: absolute:
1.42      nicm     1482:        /* Absolute movement. */
                   1483:        tty_putcode2(tty, TTYC_CUP, cy, cx);
                   1484:
                   1485: out:
                   1486:        tty->cx = cx;
                   1487:        tty->cy = cy;
1.1       nicm     1488: }
                   1489:
                   1490: void
1.176     nicm     1491: tty_attributes(struct tty *tty, const struct grid_cell *gc,
                   1492:     const struct window_pane *wp)
1.1       nicm     1493: {
1.63      nicm     1494:        struct grid_cell        *tc = &tty->cell, gc2;
1.85      nicm     1495:        u_char                   changed;
1.61      nicm     1496:
1.228     nicm     1497:        /* Ignore cell if it is the same as the last one. */
                   1498:        if (wp != NULL &&
                   1499:            (int)wp->id == tty->last_wp &&
                   1500:            ~(wp->window->flags & WINDOW_STYLECHANGED) &&
                   1501:            gc->attr == tty->last_cell.attr &&
                   1502:            gc->fg == tty->last_cell.fg &&
                   1503:            gc->bg == tty->last_cell.bg)
                   1504:                return;
                   1505:        tty->last_wp = (wp != NULL ? (int)wp->id : -1);
                   1506:        memcpy(&tty->last_cell, gc, sizeof tty->last_cell);
                   1507:
                   1508:        /* Copy cell and update default colours. */
1.85      nicm     1509:        memcpy(&gc2, gc, sizeof gc2);
1.203     nicm     1510:        if (wp != NULL)
                   1511:                tty_default_colours(&gc2, wp);
1.63      nicm     1512:
1.18      nicm     1513:        /*
                   1514:         * If no setab, try to use the reverse attribute as a best-effort for a
                   1515:         * non-default background. This is a bit of a hack but it doesn't do
                   1516:         * any serious harm and makes a couple of applications happier.
                   1517:         */
                   1518:        if (!tty_term_has(tty->term, TTYC_SETAB)) {
1.85      nicm     1519:                if (gc2.attr & GRID_ATTR_REVERSE) {
                   1520:                        if (gc2.fg != 7 && gc2.fg != 8)
1.64      nicm     1521:                                gc2.attr &= ~GRID_ATTR_REVERSE;
1.18      nicm     1522:                } else {
1.85      nicm     1523:                        if (gc2.bg != 0 && gc2.bg != 8)
1.64      nicm     1524:                                gc2.attr |= GRID_ATTR_REVERSE;
1.18      nicm     1525:                }
                   1526:        }
1.1       nicm     1527:
1.85      nicm     1528:        /* Fix up the colours if necessary. */
1.219     nicm     1529:        tty_check_fg(tty, wp, &gc2);
                   1530:        tty_check_bg(tty, wp, &gc2);
1.85      nicm     1531:
1.64      nicm     1532:        /* If any bits are being cleared, reset everything. */
1.85      nicm     1533:        if (tc->attr & ~gc2.attr)
1.64      nicm     1534:                tty_reset(tty);
                   1535:
                   1536:        /*
                   1537:         * Set the colours. This may call tty_reset() (so it comes next) and
                   1538:         * may add to (NOT remove) the desired attributes by changing new_attr.
                   1539:         */
1.85      nicm     1540:        tty_colours(tty, &gc2);
1.64      nicm     1541:
1.1       nicm     1542:        /* Filter out attribute bits already set. */
1.85      nicm     1543:        changed = gc2.attr & ~tc->attr;
                   1544:        tc->attr = gc2.attr;
1.1       nicm     1545:
                   1546:        /* Set the attributes. */
                   1547:        if (changed & GRID_ATTR_BRIGHT)
                   1548:                tty_putcode(tty, TTYC_BOLD);
                   1549:        if (changed & GRID_ATTR_DIM)
                   1550:                tty_putcode(tty, TTYC_DIM);
1.180     nicm     1551:        if (changed & GRID_ATTR_ITALICS)
                   1552:                tty_set_italics(tty);
1.1       nicm     1553:        if (changed & GRID_ATTR_UNDERSCORE)
                   1554:                tty_putcode(tty, TTYC_SMUL);
                   1555:        if (changed & GRID_ATTR_BLINK)
                   1556:                tty_putcode(tty, TTYC_BLINK);
                   1557:        if (changed & GRID_ATTR_REVERSE) {
                   1558:                if (tty_term_has(tty->term, TTYC_REV))
                   1559:                        tty_putcode(tty, TTYC_REV);
                   1560:                else if (tty_term_has(tty->term, TTYC_SMSO))
                   1561:                        tty_putcode(tty, TTYC_SMSO);
                   1562:        }
                   1563:        if (changed & GRID_ATTR_HIDDEN)
                   1564:                tty_putcode(tty, TTYC_INVIS);
1.90      nicm     1565:        if ((changed & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1.1       nicm     1566:                tty_putcode(tty, TTYC_SMACS);
                   1567: }
                   1568:
1.207     nicm     1569: static void
1.85      nicm     1570: tty_colours(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1571: {
1.61      nicm     1572:        struct grid_cell        *tc = &tty->cell;
1.204     nicm     1573:        int                      have_ax;
1.61      nicm     1574:
                   1575:        /* No changes? Nothing is necessary. */
1.204     nicm     1576:        if (gc->fg == tc->fg && gc->bg == tc->bg)
1.63      nicm     1577:                return;
1.1       nicm     1578:
1.61      nicm     1579:        /*
                   1580:         * Is either the default colour? This is handled specially because the
                   1581:         * best solution might be to reset both colours to default, in which
                   1582:         * case if only one is default need to fall onward to set the other
                   1583:         * colour.
                   1584:         */
1.204     nicm     1585:        if (gc->fg == 8 || gc->bg == 8) {
1.61      nicm     1586:                /*
                   1587:                 * If don't have AX but do have op, send sgr0 (op can't
                   1588:                 * actually be used because it is sometimes the same as sgr0
                   1589:                 * and sometimes isn't). This resets both colours to default.
                   1590:                 *
                   1591:                 * Otherwise, try to set the default colour only as needed.
                   1592:                 */
1.174     nicm     1593:                have_ax = tty_term_flag(tty->term, TTYC_AX);
1.61      nicm     1594:                if (!have_ax && tty_term_has(tty->term, TTYC_OP))
                   1595:                        tty_reset(tty);
                   1596:                else {
1.204     nicm     1597:                        if (gc->fg == 8 && tc->fg != 8) {
1.61      nicm     1598:                                if (have_ax)
                   1599:                                        tty_puts(tty, "\033[39m");
1.204     nicm     1600:                                else if (tc->fg != 7)
1.61      nicm     1601:                                        tty_putcode1(tty, TTYC_SETAF, 7);
                   1602:                                tc->fg = 8;
                   1603:                        }
1.204     nicm     1604:                        if (gc->bg == 8 && tc->bg != 8) {
1.77      nicm     1605:                                if (have_ax)
1.61      nicm     1606:                                        tty_puts(tty, "\033[49m");
1.204     nicm     1607:                                else if (tc->bg != 0)
1.61      nicm     1608:                                        tty_putcode1(tty, TTYC_SETAB, 0);
                   1609:                                tc->bg = 8;
                   1610:                        }
                   1611:                }
                   1612:        }
1.1       nicm     1613:
1.61      nicm     1614:        /* Set the foreground colour. */
1.204     nicm     1615:        if (gc->fg != 8 && gc->fg != tc->fg)
1.85      nicm     1616:                tty_colours_fg(tty, gc);
1.1       nicm     1617:
1.61      nicm     1618:        /*
                   1619:         * Set the background colour. This must come after the foreground as
                   1620:         * tty_colour_fg() can call tty_reset().
                   1621:         */
1.204     nicm     1622:        if (gc->bg != 8 && gc->bg != tc->bg)
1.73      nicm     1623:                tty_colours_bg(tty, gc);
1.1       nicm     1624: }
                   1625:
1.219     nicm     1626: static void
                   1627: tty_check_fg(struct tty *tty, const struct window_pane *wp,
                   1628:     struct grid_cell *gc)
1.85      nicm     1629: {
1.204     nicm     1630:        u_char  r, g, b;
                   1631:        u_int   colours;
1.223     nicm     1632:        int     c;
1.85      nicm     1633:
1.219     nicm     1634:        /* Perform substitution if this pane has a palette */
                   1635:        if ((~gc->flags & GRID_FLAG_NOPALETTE) &&
1.223     nicm     1636:            (c = window_pane_get_palette(wp, gc->fg)) != -1)
                   1637:                gc->fg = c;
1.219     nicm     1638:
1.199     nicm     1639:        /* Is this a 24-bit colour? */
1.204     nicm     1640:        if (gc->fg & COLOUR_FLAG_RGB) {
1.199     nicm     1641:                /* Not a 24-bit terminal? Translate to 256-colour palette. */
                   1642:                if (!tty_term_flag(tty->term, TTYC_TC)) {
1.204     nicm     1643:                        colour_split_rgb(gc->fg, &r, &g, &b);
                   1644:                        gc->fg = colour_find_rgb(r, g, b);
                   1645:                } else
1.200     nicm     1646:                        return;
1.199     nicm     1647:        }
1.224     nicm     1648:
                   1649:        /* How many colours does this terminal have? */
                   1650:        if ((tty->term->flags|tty->term_flags) & TERM_256COLOURS)
                   1651:                colours = 256;
                   1652:        else
                   1653:                colours = tty_term_number(tty->term, TTYC_COLORS);
1.175     nicm     1654:
1.85      nicm     1655:        /* Is this a 256-colour colour? */
1.204     nicm     1656:        if (gc->fg & COLOUR_FLAG_256) {
1.85      nicm     1657:                /* And not a 256 colour mode? */
1.224     nicm     1658:                if (colours != 256) {
1.85      nicm     1659:                        gc->fg = colour_256to16(gc->fg);
                   1660:                        if (gc->fg & 8) {
                   1661:                                gc->fg &= 7;
1.175     nicm     1662:                                if (colours >= 16)
                   1663:                                        gc->fg += 90;
                   1664:                                else
                   1665:                                        gc->attr |= GRID_ATTR_BRIGHT;
1.85      nicm     1666:                        } else
                   1667:                                gc->attr &= ~GRID_ATTR_BRIGHT;
                   1668:                }
                   1669:                return;
                   1670:        }
                   1671:
                   1672:        /* Is this an aixterm colour? */
                   1673:        if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) {
                   1674:                gc->fg -= 90;
                   1675:                gc->attr |= GRID_ATTR_BRIGHT;
                   1676:        }
                   1677: }
                   1678:
1.219     nicm     1679: static void
                   1680: tty_check_bg(struct tty *tty, const struct window_pane *wp,
                   1681:     struct grid_cell *gc)
1.85      nicm     1682: {
1.204     nicm     1683:        u_char  r, g, b;
                   1684:        u_int   colours;
1.223     nicm     1685:        int     c;
1.85      nicm     1686:
1.219     nicm     1687:        /* Perform substitution if this pane has a palette */
                   1688:        if ((~gc->flags & GRID_FLAG_NOPALETTE) &&
1.223     nicm     1689:            (c = window_pane_get_palette(wp, gc->bg)) != -1)
                   1690:                gc->bg = c;
1.219     nicm     1691:
1.199     nicm     1692:        /* Is this a 24-bit colour? */
1.204     nicm     1693:        if (gc->bg & COLOUR_FLAG_RGB) {
1.199     nicm     1694:                /* Not a 24-bit terminal? Translate to 256-colour palette. */
                   1695:                if (!tty_term_flag(tty->term, TTYC_TC)) {
1.204     nicm     1696:                        colour_split_rgb(gc->bg, &r, &g, &b);
                   1697:                        gc->bg = colour_find_rgb(r, g, b);
                   1698:                } else
1.200     nicm     1699:                        return;
1.199     nicm     1700:        }
1.224     nicm     1701:
                   1702:        /* How many colours does this terminal have? */
                   1703:        if ((tty->term->flags|tty->term_flags) & TERM_256COLOURS)
                   1704:                colours = 256;
                   1705:        else
                   1706:                colours = tty_term_number(tty->term, TTYC_COLORS);
1.175     nicm     1707:
1.85      nicm     1708:        /* Is this a 256-colour colour? */
1.204     nicm     1709:        if (gc->bg & COLOUR_FLAG_256) {
1.85      nicm     1710:                /*
                   1711:                 * And not a 256 colour mode? Translate to 16-colour
                   1712:                 * palette. Bold background doesn't exist portably, so just
                   1713:                 * discard the bold bit if set.
                   1714:                 */
1.224     nicm     1715:                if (colours != 256) {
1.85      nicm     1716:                        gc->bg = colour_256to16(gc->bg);
1.175     nicm     1717:                        if (gc->bg & 8) {
1.85      nicm     1718:                                gc->bg &= 7;
1.175     nicm     1719:                                if (colours >= 16)
                   1720:                                        gc->fg += 90;
                   1721:                        }
1.85      nicm     1722:                }
                   1723:                return;
                   1724:        }
                   1725:
                   1726:        /* Is this an aixterm colour? */
1.175     nicm     1727:        if (gc->bg >= 90 && gc->bg <= 97 && colours < 16)
1.85      nicm     1728:                gc->bg -= 90;
                   1729: }
                   1730:
1.207     nicm     1731: static void
1.85      nicm     1732: tty_colours_fg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1733: {
1.61      nicm     1734:        struct grid_cell        *tc = &tty->cell;
1.79      nicm     1735:        char                     s[32];
1.1       nicm     1736:
1.204     nicm     1737:        /* Is this a 24-bit or 256-colour colour? */
                   1738:        if (gc->fg & COLOUR_FLAG_RGB ||
                   1739:            gc->fg & COLOUR_FLAG_256) {
                   1740:                if (tty_try_colour(tty, gc->fg, "38") == 0)
1.61      nicm     1741:                        goto save_fg;
1.199     nicm     1742:                /* Should not get here, already converted in tty_check_fg. */
1.85      nicm     1743:                return;
1.1       nicm     1744:        }
                   1745:
1.79      nicm     1746:        /* Is this an aixterm bright colour? */
1.204     nicm     1747:        if (gc->fg >= 90 && gc->fg <= 97) {
                   1748:                xsnprintf(s, sizeof s, "\033[%dm", gc->fg);
1.85      nicm     1749:                tty_puts(tty, s);
                   1750:                goto save_fg;
1.79      nicm     1751:        }
                   1752:
1.61      nicm     1753:        /* Otherwise set the foreground colour. */
1.204     nicm     1754:        tty_putcode1(tty, TTYC_SETAF, gc->fg);
1.61      nicm     1755:
1.77      nicm     1756: save_fg:
1.61      nicm     1757:        /* Save the new values in the terminal current cell. */
1.204     nicm     1758:        tc->fg = gc->fg;
1.1       nicm     1759: }
                   1760:
1.207     nicm     1761: static void
1.73      nicm     1762: tty_colours_bg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1763: {
1.61      nicm     1764:        struct grid_cell        *tc = &tty->cell;
1.79      nicm     1765:        char                     s[32];
1.1       nicm     1766:
1.204     nicm     1767:        /* Is this a 24-bit or 256-colour colour? */
                   1768:        if (gc->bg & COLOUR_FLAG_RGB ||
                   1769:            gc->bg & COLOUR_FLAG_256) {
                   1770:                if (tty_try_colour(tty, gc->bg, "48") == 0)
1.61      nicm     1771:                        goto save_bg;
1.199     nicm     1772:                /* Should not get here, already converted in tty_check_bg. */
1.85      nicm     1773:                return;
1.79      nicm     1774:        }
                   1775:
                   1776:        /* Is this an aixterm bright colour? */
1.204     nicm     1777:        if (gc->bg >= 90 && gc->bg <= 97) {
                   1778:                xsnprintf(s, sizeof s, "\033[%dm", gc->bg + 10);
1.175     nicm     1779:                tty_puts(tty, s);
                   1780:                goto save_bg;
1.1       nicm     1781:        }
                   1782:
1.61      nicm     1783:        /* Otherwise set the background colour. */
1.204     nicm     1784:        tty_putcode1(tty, TTYC_SETAB, gc->bg);
1.61      nicm     1785:
                   1786: save_bg:
                   1787:        /* Save the new values in the terminal current cell. */
1.204     nicm     1788:        tc->bg = gc->bg;
1.61      nicm     1789: }
                   1790:
1.207     nicm     1791: static int
1.204     nicm     1792: tty_try_colour(struct tty *tty, int colour, const char *type)
1.61      nicm     1793: {
1.204     nicm     1794:        u_char  r, g, b;
1.61      nicm     1795:        char    s[32];
                   1796:
1.204     nicm     1797:        if (colour & COLOUR_FLAG_256) {
                   1798:                /*
                   1799:                 * If the user has specified -2 to the client, setaf and setab
                   1800:                 * may not work (or they may not want to use them), so send the
                   1801:                 * usual sequence.
                   1802:                 */
                   1803:                if (tty->term_flags & TERM_256COLOURS)
                   1804:                        goto fallback_256;
1.189     nicm     1805:
1.204     nicm     1806:                /*
                   1807:                 * If the terminfo entry has 256 colours and setaf and setab
                   1808:                 * exist, assume that they work correctly.
                   1809:                 */
                   1810:                if (tty->term->flags & TERM_256COLOURS) {
                   1811:                        if (*type == '3') {
                   1812:                                if (!tty_term_has(tty->term, TTYC_SETAF))
                   1813:                                        goto fallback_256;
                   1814:                                tty_putcode1(tty, TTYC_SETAF, colour & 0xff);
                   1815:                        } else {
                   1816:                                if (!tty_term_has(tty->term, TTYC_SETAB))
                   1817:                                        goto fallback_256;
                   1818:                                tty_putcode1(tty, TTYC_SETAB, colour & 0xff);
                   1819:                        }
                   1820:                        return (0);
1.188     nicm     1821:                }
1.204     nicm     1822:                goto fallback_256;
                   1823:        }
                   1824:
                   1825:        if (colour & COLOUR_FLAG_RGB) {
                   1826:                if (!tty_term_flag(tty->term, TTYC_TC))
                   1827:                        return (-1);
                   1828:
                   1829:                colour_split_rgb(colour & 0xffffff, &r, &g, &b);
                   1830:                xsnprintf(s, sizeof s, "\033[%s;2;%hhu;%hhu;%hhum", type,
                   1831:                    r, g, b);
                   1832:                tty_puts(tty, s);
1.165     nicm     1833:                return (0);
                   1834:        }
1.61      nicm     1835:
1.165     nicm     1836:        return (-1);
1.188     nicm     1837:
1.204     nicm     1838: fallback_256:
                   1839:        xsnprintf(s, sizeof s, "\033[%s;5;%dm", type, colour & 0xff);
1.188     nicm     1840:        tty_puts(tty, s);
                   1841:        return (0);
1.176     nicm     1842: }
                   1843:
1.207     nicm     1844: static void
1.176     nicm     1845: tty_default_colours(struct grid_cell *gc, const struct window_pane *wp)
                   1846: {
1.203     nicm     1847:        struct window           *w = wp->window;
                   1848:        struct options          *oo = w->options;
                   1849:        const struct grid_cell  *agc, *pgc, *wgc;
1.223     nicm     1850:        int                      c;
1.203     nicm     1851:
                   1852:        if (w->flags & WINDOW_STYLECHANGED) {
                   1853:                w->flags &= ~WINDOW_STYLECHANGED;
                   1854:                agc = options_get_style(oo, "window-active-style");
                   1855:                memcpy(&w->active_style, agc, sizeof w->active_style);
                   1856:                wgc = options_get_style(oo, "window-style");
                   1857:                memcpy(&w->style, wgc, sizeof w->style);
                   1858:        } else {
                   1859:                agc = &w->active_style;
                   1860:                wgc = &w->style;
                   1861:        }
1.176     nicm     1862:        pgc = &wp->colgc;
                   1863:
1.204     nicm     1864:        if (gc->fg == 8) {
                   1865:                if (pgc->fg != 8)
1.176     nicm     1866:                        gc->fg = pgc->fg;
1.204     nicm     1867:                else if (wp == w->active && agc->fg != 8)
1.176     nicm     1868:                        gc->fg = agc->fg;
1.204     nicm     1869:                else
1.176     nicm     1870:                        gc->fg = wgc->fg;
1.219     nicm     1871:
1.223     nicm     1872:                if (gc->fg != 8 &&
                   1873:                    (c = window_pane_get_palette(wp, gc->fg)) != -1)
                   1874:                        gc->fg = c;
1.176     nicm     1875:        }
                   1876:
1.204     nicm     1877:        if (gc->bg == 8) {
                   1878:                if (pgc->bg != 8)
1.176     nicm     1879:                        gc->bg = pgc->bg;
1.204     nicm     1880:                else if (wp == w->active && agc->bg != 8)
1.176     nicm     1881:                        gc->bg = agc->bg;
1.204     nicm     1882:                else
1.176     nicm     1883:                        gc->bg = wgc->bg;
1.219     nicm     1884:
1.223     nicm     1885:                if (gc->bg != 8 &&
                   1886:                    (c = window_pane_get_palette(wp, gc->bg)) != -1)
                   1887:                        gc->bg = c;
1.176     nicm     1888:        }
1.210     nicm     1889: }
                   1890:
                   1891: static void
                   1892: tty_default_attributes(struct tty *tty, const struct window_pane *wp, u_int bg)
                   1893: {
                   1894:        static struct grid_cell gc;
                   1895:
                   1896:        memcpy(&gc, &grid_default_cell, sizeof gc);
                   1897:        gc.bg = bg;
                   1898:        tty_attributes(tty, &gc, wp);
1.1       nicm     1899: }