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Annotation of src/usr.bin/tmux/tty.c, Revision 1.206

1.206   ! nicm        1: /* $OpenBSD: tty.c,v 1.205 2016/07/15 00:49:08 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:
1.1       nicm       24: #include <errno.h>
                     25: #include <fcntl.h>
1.106     nicm       26: #include <resolv.h>
1.42      nicm       27: #include <stdlib.h>
1.1       nicm       28: #include <string.h>
                     29: #include <termios.h>
                     30: #include <unistd.h>
                     31:
                     32: #include "tmux.h"
                     33:
1.192     nicm       34: static int tty_log_fd = -1;
                     35:
1.67      nicm       36: void   tty_read_callback(struct bufferevent *, void *);
1.66      nicm       37: void   tty_error_callback(struct bufferevent *, short, void *);
                     38:
1.201     nicm       39: static int tty_client_ready(struct client *, struct window_pane *);
                     40:
1.180     nicm       41: void   tty_set_italics(struct tty *);
1.204     nicm       42: int    tty_try_colour(struct tty *, int, const char *);
1.1       nicm       43:
1.85      nicm       44: void   tty_colours(struct tty *, const struct grid_cell *);
                     45: void   tty_check_fg(struct tty *, struct grid_cell *);
                     46: void   tty_check_bg(struct tty *, struct grid_cell *);
                     47: void   tty_colours_fg(struct tty *, const struct grid_cell *);
1.73      nicm       48: void   tty_colours_bg(struct tty *, const struct grid_cell *);
1.1       nicm       49:
1.120     nicm       50: int    tty_large_region(struct tty *, const struct tty_ctx *);
1.176     nicm       51: int    tty_fake_bce(const struct tty *, const struct window_pane *);
1.24      nicm       52: void   tty_redraw_region(struct tty *, const struct tty_ctx *);
1.196     nicm       53: void   tty_emulate_repeat(struct tty *, enum tty_code_code, enum tty_code_code,
                     54:            u_int);
1.133     nicm       55: void   tty_repeat_space(struct tty *, u_int);
1.176     nicm       56: void   tty_cell(struct tty *, const struct grid_cell *,
                     57:            const struct window_pane *);
                     58: void   tty_default_colours(struct grid_cell *, const struct window_pane *);
1.1       nicm       59:
1.90      nicm       60: #define tty_use_acs(tty) \
1.131     nicm       61:        (tty_term_has((tty)->term, TTYC_ACSC) && !((tty)->flags & TTY_UTF8))
1.90      nicm       62:
1.132     nicm       63: #define tty_pane_full_width(tty, ctx) \
                     64:        ((ctx)->xoff == 0 && screen_size_x((ctx)->wp->screen) >= (tty)->sx)
                     65:
1.192     nicm       66: void
                     67: tty_create_log(void)
                     68: {
                     69:        char    name[64];
                     70:
                     71:        xsnprintf(name, sizeof name, "tmux-out-%ld.log", (long)getpid());
                     72:
                     73:        tty_log_fd = open(name, O_WRONLY|O_CREAT|O_TRUNC, 0644);
                     74:        if (tty_log_fd != -1 && fcntl(tty_log_fd, F_SETFD, FD_CLOEXEC) == -1)
                     75:                fatal("fcntl failed");
                     76: }
                     77:
1.185     nicm       78: int
1.136     nicm       79: tty_init(struct tty *tty, struct client *c, int fd, char *term)
1.1       nicm       80: {
1.30      nicm       81:        char    *path;
                     82:
1.185     nicm       83:        if (!isatty(fd))
                     84:                return (-1);
                     85:
1.30      nicm       86:        memset(tty, 0, sizeof *tty);
1.22      nicm       87:
1.9       nicm       88:        if (term == NULL || *term == '\0')
1.1       nicm       89:                tty->termname = xstrdup("unknown");
                     90:        else
                     91:                tty->termname = xstrdup(term);
1.30      nicm       92:        tty->fd = fd;
1.136     nicm       93:        tty->client = c;
1.30      nicm       94:
                     95:        if ((path = ttyname(fd)) == NULL)
1.185     nicm       96:                return (-1);
1.30      nicm       97:        tty->path = xstrdup(path);
1.108     nicm       98:        tty->cstyle = 0;
1.107     nicm       99:        tty->ccolour = xstrdup("");
1.30      nicm      100:
1.1       nicm      101:        tty->flags = 0;
                    102:        tty->term_flags = 0;
1.185     nicm      103:
                    104:        return (0);
1.31      nicm      105: }
                    106:
1.88      nicm      107: int
1.31      nicm      108: tty_resize(struct tty *tty)
                    109: {
                    110:        struct winsize  ws;
1.88      nicm      111:        u_int           sx, sy;
1.31      nicm      112:
                    113:        if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
1.88      nicm      114:                sx = ws.ws_col;
                    115:                if (sx == 0)
                    116:                        sx = 80;
                    117:                sy = ws.ws_row;
                    118:                if (sy == 0)
                    119:                        sy = 24;
                    120:        } else {
                    121:                sx = 80;
                    122:                sy = 24;
1.31      nicm      123:        }
1.114     nicm      124:        if (!tty_set_size(tty, sx, sy))
1.88      nicm      125:                return (0);
1.31      nicm      126:
                    127:        tty->cx = UINT_MAX;
                    128:        tty->cy = UINT_MAX;
                    129:
                    130:        tty->rupper = UINT_MAX;
                    131:        tty->rlower = UINT_MAX;
1.88      nicm      132:
                    133:        /*
                    134:         * If the terminal has been started, reset the actual scroll region and
                    135:         * cursor position, as this may not have happened.
                    136:         */
                    137:        if (tty->flags & TTY_STARTED) {
                    138:                tty_cursor(tty, 0, 0);
                    139:                tty_region(tty, 0, tty->sy - 1);
                    140:        }
                    141:
1.114     nicm      142:        return (1);
                    143: }
                    144:
                    145: int
                    146: tty_set_size(struct tty *tty, u_int sx, u_int sy) {
                    147:        if (sx == tty->sx && sy == tty->sy)
                    148:                return (0);
                    149:        tty->sx = sx;
                    150:        tty->sy = sy;
1.88      nicm      151:        return (1);
1.1       nicm      152: }
                    153:
                    154: int
1.166     nicm      155: tty_open(struct tty *tty, char **cause)
1.1       nicm      156: {
1.166     nicm      157:        tty->term = tty_term_find(tty->termname, tty->fd, cause);
1.21      nicm      158:        if (tty->term == NULL) {
                    159:                tty_close(tty);
                    160:                return (-1);
                    161:        }
                    162:        tty->flags |= TTY_OPENED;
1.1       nicm      163:
1.149     nicm      164:        tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_TIMER);
1.1       nicm      165:
1.196     nicm      166:        tty->event = bufferevent_new(tty->fd, tty_read_callback, NULL,
                    167:            tty_error_callback, tty);
1.1       nicm      168:
                    169:        tty_start_tty(tty);
                    170:
1.148     nicm      171:        tty_keys_build(tty);
1.1       nicm      172:
                    173:        return (0);
                    174: }
                    175:
                    176: void
1.194     nicm      177: tty_read_callback(__unused struct bufferevent *bufev, void *data)
1.67      nicm      178: {
                    179:        struct tty      *tty = data;
                    180:
                    181:        while (tty_keys_next(tty))
                    182:                ;
                    183: }
                    184:
                    185: void
1.194     nicm      186: tty_error_callback(__unused struct bufferevent *bufev, __unused short what,
                    187:     __unused void *data)
1.66      nicm      188: {
                    189: }
                    190:
                    191: void
1.127     nicm      192: tty_init_termios(int fd, struct termios *orig_tio, struct bufferevent *bufev)
1.1       nicm      193: {
1.128     nicm      194:        struct termios  tio;
1.33      nicm      195:
1.127     nicm      196:        if (fd == -1 || tcgetattr(fd, orig_tio) != 0)
1.33      nicm      197:                return;
1.1       nicm      198:
1.127     nicm      199:        setblocking(fd, 0);
1.34      nicm      200:
1.127     nicm      201:        if (bufev != NULL)
                    202:                bufferevent_enable(bufev, EV_READ|EV_WRITE);
1.66      nicm      203:
1.127     nicm      204:        memcpy(&tio, orig_tio, sizeof tio);
1.1       nicm      205:        tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
                    206:        tio.c_iflag |= IGNBRK;
                    207:        tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
                    208:        tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
1.169     jsg       209:            ECHOPRT|ECHOKE|ISIG);
1.1       nicm      210:        tio.c_cc[VMIN] = 1;
1.60      deraadt   211:        tio.c_cc[VTIME] = 0;
1.127     nicm      212:        if (tcsetattr(fd, TCSANOW, &tio) == 0)
                    213:                tcflush(fd, TCIOFLUSH);
                    214: }
                    215:
                    216: void
                    217: tty_start_tty(struct tty *tty)
                    218: {
                    219:        tty_init_termios(tty->fd, &tty->tio, tty->event);
1.1       nicm      220:
1.10      nicm      221:        tty_putcode(tty, TTYC_SMCUP);
1.1       nicm      222:
1.25      nicm      223:        tty_putcode(tty, TTYC_SGR0);
                    224:        memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
                    225:
1.76      nicm      226:        tty_putcode(tty, TTYC_RMKX);
1.90      nicm      227:        if (tty_use_acs(tty))
                    228:                tty_putcode(tty, TTYC_ENACS);
1.1       nicm      229:        tty_putcode(tty, TTYC_CLEAR);
                    230:
                    231:        tty_putcode(tty, TTYC_CNORM);
                    232:        if (tty_term_has(tty->term, TTYC_KMOUS))
1.179     nicm      233:                tty_puts(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
1.121     nicm      234:
1.189     nicm      235:        if (tty_term_flag(tty->term, TTYC_XT)) {
1.191     nicm      236:                if (options_get_number(global_options, "focus-events")) {
1.162     nicm      237:                        tty->flags |= TTY_FOCUS;
                    238:                        tty_puts(tty, "\033[?1004h");
                    239:                }
                    240:        }
1.1       nicm      241:
                    242:        tty->cx = UINT_MAX;
                    243:        tty->cy = UINT_MAX;
                    244:
                    245:        tty->rlower = UINT_MAX;
                    246:        tty->rupper = UINT_MAX;
                    247:
                    248:        tty->mode = MODE_CURSOR;
1.20      nicm      249:
                    250:        tty->flags |= TTY_STARTED;
1.107     nicm      251:
                    252:        tty_force_cursor_colour(tty, "");
1.177     nicm      253:
                    254:        tty->mouse_drag_flag = 0;
                    255:        tty->mouse_drag_update = NULL;
                    256:        tty->mouse_drag_release = NULL;
1.128     nicm      257: }
                    258:
                    259: void
1.1       nicm      260: tty_stop_tty(struct tty *tty)
                    261: {
                    262:        struct winsize  ws;
                    263:
1.20      nicm      264:        if (!(tty->flags & TTY_STARTED))
                    265:                return;
                    266:        tty->flags &= ~TTY_STARTED;
                    267:
1.66      nicm      268:        bufferevent_disable(tty->event, EV_READ|EV_WRITE);
                    269:
1.1       nicm      270:        /*
                    271:         * Be flexible about error handling and try not kill the server just
                    272:         * because the fd is invalid. Things like ssh -t can easily leave us
                    273:         * with a dead tty.
                    274:         */
                    275:        if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
                    276:                return;
                    277:        if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
                    278:                return;
                    279:
                    280:        tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
1.90      nicm      281:        if (tty_use_acs(tty))
                    282:                tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
1.1       nicm      283:        tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
                    284:        tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
                    285:        tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
1.160     nicm      286:        if (tty_term_has(tty->term, TTYC_SS) && tty->cstyle != 0) {
                    287:                if (tty_term_has(tty->term, TTYC_SE))
                    288:                        tty_raw(tty, tty_term_string(tty->term, TTYC_SE));
1.109     nicm      289:                else
1.160     nicm      290:                        tty_raw(tty, tty_term_string1(tty->term, TTYC_SS, 0));
1.108     nicm      291:        }
1.173     nicm      292:        if (tty->mode & MODE_BRACKETPASTE)
                    293:                tty_raw(tty, "\033[?2004l");
1.107     nicm      294:        tty_raw(tty, tty_term_string(tty->term, TTYC_CR));
1.1       nicm      295:
                    296:        tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
                    297:        if (tty_term_has(tty->term, TTYC_KMOUS))
1.179     nicm      298:                tty_raw(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
1.151     nicm      299:
1.189     nicm      300:        if (tty_term_flag(tty->term, TTYC_XT)) {
1.162     nicm      301:                if (tty->flags & TTY_FOCUS) {
                    302:                        tty->flags &= ~TTY_FOCUS;
1.172     nicm      303:                        tty_raw(tty, "\033[?1004l");
1.162     nicm      304:                }
                    305:        }
1.10      nicm      306:
                    307:        tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
1.150     nicm      308:
                    309:        setblocking(tty->fd, 1);
1.1       nicm      310: }
                    311:
                    312: void
1.20      nicm      313: tty_close(struct tty *tty)
1.1       nicm      314: {
1.123     nicm      315:        if (event_initialized(&tty->key_timer))
                    316:                evtimer_del(&tty->key_timer);
1.20      nicm      317:        tty_stop_tty(tty);
1.1       nicm      318:
1.21      nicm      319:        if (tty->flags & TTY_OPENED) {
1.66      nicm      320:                bufferevent_free(tty->event);
                    321:
1.21      nicm      322:                tty_term_free(tty->term);
                    323:                tty_keys_free(tty);
                    324:
                    325:                tty->flags &= ~TTY_OPENED;
                    326:        }
1.1       nicm      327:
1.21      nicm      328:        if (tty->fd != -1) {
                    329:                close(tty->fd);
                    330:                tty->fd = -1;
                    331:        }
1.1       nicm      332: }
                    333:
                    334: void
1.20      nicm      335: tty_free(struct tty *tty)
1.1       nicm      336: {
1.20      nicm      337:        tty_close(tty);
1.1       nicm      338:
1.138     nicm      339:        free(tty->ccolour);
1.190     nicm      340:        free(tty->path);
                    341:        free(tty->termname);
1.1       nicm      342: }
                    343:
                    344: void
                    345: tty_raw(struct tty *tty, const char *s)
                    346: {
1.150     nicm      347:        ssize_t n, slen;
                    348:        u_int   i;
                    349:
                    350:        slen = strlen(s);
                    351:        for (i = 0; i < 5; i++) {
                    352:                n = write(tty->fd, s, slen);
                    353:                if (n >= 0) {
                    354:                        s += n;
                    355:                        slen -= n;
                    356:                        if (slen == 0)
                    357:                                break;
                    358:                } else if (n == -1 && errno != EAGAIN)
                    359:                        break;
                    360:                usleep(100);
                    361:        }
1.1       nicm      362: }
                    363:
                    364: void
                    365: tty_putcode(struct tty *tty, enum tty_code_code code)
                    366: {
                    367:        tty_puts(tty, tty_term_string(tty->term, code));
                    368: }
                    369:
                    370: void
                    371: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
                    372: {
                    373:        if (a < 0)
                    374:                return;
                    375:        tty_puts(tty, tty_term_string1(tty->term, code, a));
                    376: }
                    377:
                    378: void
                    379: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
                    380: {
                    381:        if (a < 0 || b < 0)
                    382:                return;
                    383:        tty_puts(tty, tty_term_string2(tty->term, code, a, b));
                    384: }
                    385:
                    386: void
1.107     nicm      387: tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a)
                    388: {
                    389:        if (a != NULL)
                    390:                tty_puts(tty, tty_term_ptr1(tty->term, code, a));
                    391: }
                    392:
                    393: void
1.167     nicm      394: tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a,
                    395:     const void *b)
1.106     nicm      396: {
                    397:        if (a != NULL && b != NULL)
                    398:                tty_puts(tty, tty_term_ptr2(tty->term, code, a, b));
                    399: }
                    400:
                    401: void
1.1       nicm      402: tty_puts(struct tty *tty, const char *s)
                    403: {
                    404:        if (*s == '\0')
                    405:                return;
1.66      nicm      406:        bufferevent_write(tty->event, s, strlen(s));
1.1       nicm      407:
1.192     nicm      408:        if (tty_log_fd != -1)
                    409:                write(tty_log_fd, s, strlen(s));
1.1       nicm      410: }
                    411:
                    412: void
                    413: tty_putc(struct tty *tty, u_char ch)
                    414: {
1.90      nicm      415:        const char      *acs;
                    416:        u_int            sx;
1.1       nicm      417:
1.90      nicm      418:        if (tty->cell.attr & GRID_ATTR_CHARSET) {
                    419:                acs = tty_acs_get(tty, ch);
                    420:                if (acs != NULL)
                    421:                        bufferevent_write(tty->event, acs, strlen(acs));
                    422:                else
                    423:                        bufferevent_write(tty->event, &ch, 1);
                    424:        } else
                    425:                bufferevent_write(tty->event, &ch, 1);
1.1       nicm      426:
                    427:        if (ch >= 0x20 && ch != 0x7f) {
                    428:                sx = tty->sx;
                    429:                if (tty->term->flags & TERM_EARLYWRAP)
                    430:                        sx--;
                    431:
1.46      nicm      432:                if (tty->cx >= sx) {
                    433:                        tty->cx = 1;
                    434:                        if (tty->cy != tty->rlower)
                    435:                                tty->cy++;
1.1       nicm      436:                } else
                    437:                        tty->cx++;
                    438:        }
                    439:
1.192     nicm      440:        if (tty_log_fd != -1)
                    441:                write(tty_log_fd, &ch, 1);
1.1       nicm      442: }
                    443:
                    444: void
1.147     nicm      445: tty_putn(struct tty *tty, const void *buf, size_t len, u_int width)
1.5       nicm      446: {
1.147     nicm      447:        bufferevent_write(tty->event, buf, len);
1.192     nicm      448:        if (tty_log_fd != -1)
                    449:                write(tty_log_fd, buf, len);
1.147     nicm      450:        tty->cx += width;
1.5       nicm      451: }
                    452:
                    453: void
1.180     nicm      454: tty_set_italics(struct tty *tty)
                    455: {
                    456:        const char      *s;
                    457:
                    458:        if (tty_term_has(tty->term, TTYC_SITM)) {
1.191     nicm      459:                s = options_get_string(global_options, "default-terminal");
1.180     nicm      460:                if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) {
                    461:                        tty_putcode(tty, TTYC_SITM);
                    462:                        return;
                    463:                }
                    464:        }
                    465:        tty_putcode(tty, TTYC_SMSO);
                    466: }
                    467:
                    468: void
1.1       nicm      469: tty_set_title(struct tty *tty, const char *title)
                    470: {
1.105     nicm      471:        if (!tty_term_has(tty->term, TTYC_TSL) ||
                    472:            !tty_term_has(tty->term, TTYC_FSL))
1.1       nicm      473:                return;
                    474:
1.105     nicm      475:        tty_putcode(tty, TTYC_TSL);
1.1       nicm      476:        tty_puts(tty, title);
1.105     nicm      477:        tty_putcode(tty, TTYC_FSL);
1.1       nicm      478: }
                    479:
                    480: void
1.107     nicm      481: tty_force_cursor_colour(struct tty *tty, const char *ccolour)
                    482: {
                    483:        if (*ccolour == '\0')
                    484:                tty_putcode(tty, TTYC_CR);
                    485:        else
1.160     nicm      486:                tty_putcode_ptr1(tty, TTYC_CS, ccolour);
1.138     nicm      487:        free(tty->ccolour);
1.107     nicm      488:        tty->ccolour = xstrdup(ccolour);
                    489: }
                    490:
                    491: void
                    492: tty_update_mode(struct tty *tty, int mode, struct screen *s)
1.1       nicm      493: {
                    494:        int     changed;
                    495:
1.197     nicm      496:        if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0)
1.107     nicm      497:                tty_force_cursor_colour(tty, s->ccolour);
                    498:
1.1       nicm      499:        if (tty->flags & TTY_NOCURSOR)
                    500:                mode &= ~MODE_CURSOR;
                    501:
                    502:        changed = mode ^ tty->mode;
1.183     nicm      503:        if (changed & MODE_BLINKING) {
                    504:                if (tty_term_has(tty->term, TTYC_CVVIS))
                    505:                        tty_putcode(tty, TTYC_CVVIS);
                    506:                else
                    507:                        tty_putcode(tty, TTYC_CNORM);
                    508:                changed |= MODE_CURSOR;
                    509:        }
                    510:        if (changed & MODE_CURSOR) {
                    511:                if (mode & MODE_CURSOR)
                    512:                        tty_putcode(tty, TTYC_CNORM);
                    513:                else
1.1       nicm      514:                        tty_putcode(tty, TTYC_CIVIS);
1.108     nicm      515:        }
1.181     nicm      516:        if (s != NULL && tty->cstyle != s->cstyle) {
1.160     nicm      517:                if (tty_term_has(tty->term, TTYC_SS)) {
1.108     nicm      518:                        if (s->cstyle == 0 &&
1.160     nicm      519:                            tty_term_has(tty->term, TTYC_SE))
                    520:                                tty_putcode(tty, TTYC_SE);
1.108     nicm      521:                        else
1.160     nicm      522:                                tty_putcode1(tty, TTYC_SS, s->cstyle);
1.108     nicm      523:                }
                    524:                tty->cstyle = s->cstyle;
1.1       nicm      525:        }
1.195     nicm      526:        if (changed & ALL_MOUSE_MODES) {
1.94      nicm      527:                if (mode & ALL_MOUSE_MODES) {
1.153     nicm      528:                        /*
                    529:                         * Enable the SGR (1006) extension unconditionally, as
                    530:                         * this is safe from misinterpretation. Do it in this
                    531:                         * order, because in some terminals it's the last one
                    532:                         * that takes effect and SGR is the preferred one.
                    533:                         */
                    534:                        tty_puts(tty, "\033[?1006h");
1.170     nicm      535:                        if (mode & MODE_MOUSE_BUTTON)
1.94      nicm      536:                                tty_puts(tty, "\033[?1002h");
1.98      nicm      537:                        else if (mode & MODE_MOUSE_STANDARD)
                    538:                                tty_puts(tty, "\033[?1000h");
1.86      nicm      539:                } else {
1.170     nicm      540:                        if (tty->mode & MODE_MOUSE_BUTTON)
1.94      nicm      541:                                tty_puts(tty, "\033[?1002l");
1.98      nicm      542:                        else if (tty->mode & MODE_MOUSE_STANDARD)
                    543:                                tty_puts(tty, "\033[?1000l");
1.153     nicm      544:                        tty_puts(tty, "\033[?1006l");
1.86      nicm      545:                }
1.76      nicm      546:        }
                    547:        if (changed & MODE_KKEYPAD) {
                    548:                if (mode & MODE_KKEYPAD)
                    549:                        tty_putcode(tty, TTYC_SMKX);
                    550:                else
                    551:                        tty_putcode(tty, TTYC_RMKX);
1.115     nicm      552:        }
                    553:        if (changed & MODE_BRACKETPASTE) {
                    554:                if (mode & MODE_BRACKETPASTE)
                    555:                        tty_puts(tty, "\033[?2004h");
                    556:                else
                    557:                        tty_puts(tty, "\033[?2004l");
1.1       nicm      558:        }
                    559:        tty->mode = mode;
                    560: }
                    561:
                    562: void
1.168     nicm      563: tty_emulate_repeat(struct tty *tty, enum tty_code_code code,
                    564:     enum tty_code_code code1, u_int n)
1.1       nicm      565: {
                    566:        if (tty_term_has(tty->term, code))
                    567:                tty_putcode1(tty, code, n);
                    568:        else {
                    569:                while (n-- > 0)
                    570:                        tty_putcode(tty, code1);
                    571:        }
                    572: }
                    573:
1.133     nicm      574: void
                    575: tty_repeat_space(struct tty *tty, u_int n)
                    576: {
                    577:        while (n-- > 0)
                    578:                tty_putc(tty, ' ');
                    579: }
                    580:
1.1       nicm      581: /*
1.119     nicm      582:  * Is the region large enough to be worth redrawing once later rather than
                    583:  * probably several times now? Currently yes if it is more than 50% of the
                    584:  * pane.
                    585:  */
                    586: int
1.194     nicm      587: tty_large_region(__unused struct tty *tty, const struct tty_ctx *ctx)
1.119     nicm      588: {
                    589:        struct window_pane      *wp = ctx->wp;
                    590:
                    591:        return (ctx->orlower - ctx->orupper >= screen_size_y(wp->screen) / 2);
                    592: }
                    593:
                    594: /*
1.176     nicm      595:  * Return if BCE is needed but the terminal doesn't have it - it'll need to be
                    596:  * emulated.
                    597:  */
                    598: int
                    599: tty_fake_bce(const struct tty *tty, const struct window_pane *wp)
                    600: {
                    601:        struct grid_cell        gc;
                    602:
                    603:        memcpy(&gc, &grid_default_cell, sizeof gc);
1.203     nicm      604:        if (wp != NULL)
                    605:                tty_default_colours(&gc, wp);
1.176     nicm      606:
1.204     nicm      607:        if (gc.bg == 8)
1.176     nicm      608:                return (0);
                    609:        return (!tty_term_flag(tty->term, TTYC_BCE));
                    610: }
                    611:
                    612: /*
1.1       nicm      613:  * Redraw scroll region using data from screen (already updated). Used when
                    614:  * CSR not supported, or window is a pane that doesn't take up the full
                    615:  * width of the terminal.
                    616:  */
                    617: void
1.24      nicm      618: tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      619: {
1.14      nicm      620:        struct window_pane      *wp = ctx->wp;
                    621:        struct screen           *s = wp->screen;
1.204     nicm      622:        u_int                    i;
1.1       nicm      623:
                    624:        /*
1.119     nicm      625:         * If region is large, schedule a window redraw. In most cases this is
                    626:         * likely to be followed by some more scrolling.
1.1       nicm      627:         */
1.119     nicm      628:        if (tty_large_region(tty, ctx)) {
1.1       nicm      629:                wp->flags |= PANE_REDRAW;
                    630:                return;
                    631:        }
                    632:
1.14      nicm      633:        if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
                    634:                for (i = ctx->ocy; i < screen_size_y(s); i++)
1.176     nicm      635:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      636:        } else {
1.14      nicm      637:                for (i = ctx->orupper; i <= ctx->orlower; i++)
1.176     nicm      638:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      639:        }
                    640: }
                    641:
                    642: void
1.176     nicm      643: tty_draw_pane(struct tty *tty, const struct window_pane *wp, u_int py, u_int ox,
                    644:     u_int oy)
                    645: {
                    646:        tty_draw_line(tty, wp, wp->screen, py, ox, oy);
                    647: }
                    648:
                    649: void
                    650: tty_draw_line(struct tty *tty, const struct window_pane *wp,
                    651:     struct screen *s, u_int py, u_int ox, u_int oy)
1.1       nicm      652: {
1.193     nicm      653:        struct grid_cell         gc;
1.46      nicm      654:        struct grid_line        *gl;
1.1       nicm      655:        u_int                    i, sx;
1.181     nicm      656:        int                      flags;
1.1       nicm      657:
1.181     nicm      658:        flags = tty->flags & TTY_NOCURSOR;
                    659:        tty->flags |= TTY_NOCURSOR;
                    660:        tty_update_mode(tty, tty->mode, s);
1.35      nicm      661:
1.1       nicm      662:        sx = screen_size_x(s);
1.19      nicm      663:        if (sx > s->grid->linedata[s->grid->hsize + py].cellsize)
                    664:                sx = s->grid->linedata[s->grid->hsize + py].cellsize;
1.1       nicm      665:        if (sx > tty->sx)
                    666:                sx = tty->sx;
                    667:
1.46      nicm      668:        /*
1.174     nicm      669:         * Don't move the cursor to the start position if it will wrap there
1.50      nicm      670:         * itself.
1.46      nicm      671:         */
                    672:        gl = NULL;
                    673:        if (py != 0)
                    674:                gl = &s->grid->linedata[s->grid->hsize + py - 1];
1.83      nicm      675:        if (oy + py == 0 || gl == NULL || !(gl->flags & GRID_LINE_WRAPPED) ||
1.47      nicm      676:            tty->cx < tty->sx || ox != 0 ||
                    677:            (oy + py != tty->cy + 1 && tty->cy != s->rlower + oy))
1.46      nicm      678:                tty_cursor(tty, ox, oy + py);
                    679:
1.1       nicm      680:        for (i = 0; i < sx; i++) {
1.193     nicm      681:                grid_view_get_cell(s->grid, i, py, &gc);
                    682:                tty_cell(tty, &gc, wp);
1.1       nicm      683:        }
                    684:
1.181     nicm      685:        if (sx < tty->sx) {
                    686:                tty_attributes(tty, &grid_default_cell, wp);
                    687:
                    688:                tty_cursor(tty, ox + sx, oy + py);
                    689:                if (sx != screen_size_x(s) &&
                    690:                    ox + screen_size_x(s) >= tty->sx &&
                    691:                    tty_term_has(tty->term, TTYC_EL) &&
                    692:                    !tty_fake_bce(tty, wp))
                    693:                        tty_putcode(tty, TTYC_EL);
                    694:                else
                    695:                        tty_repeat_space(tty, screen_size_x(s) - sx);
1.35      nicm      696:        }
1.1       nicm      697:
1.181     nicm      698:        tty->flags = (tty->flags & ~TTY_NOCURSOR) | flags;
1.107     nicm      699:        tty_update_mode(tty, tty->mode, s);
1.15      nicm      700: }
                    701:
1.201     nicm      702: static int
1.182     nicm      703: tty_client_ready(struct client *c, struct window_pane *wp)
                    704: {
                    705:        if (c->session == NULL || c->tty.term == NULL)
                    706:                return (0);
                    707:        if (c->flags & CLIENT_SUSPENDED)
                    708:                return (0);
                    709:        if (c->tty.flags & TTY_FREEZE)
                    710:                return (0);
                    711:        if (c->session->curw->window != wp->window)
                    712:                return (0);
                    713:        return (1);
                    714: }
                    715:
1.15      nicm      716: void
1.182     nicm      717: tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *),
                    718:     struct tty_ctx *ctx)
1.15      nicm      719: {
                    720:        struct window_pane      *wp = ctx->wp;
                    721:        struct client           *c;
                    722:
1.75      nicm      723:        /* wp can be NULL if updating the screen but not the terminal. */
1.15      nicm      724:        if (wp == NULL)
                    725:                return;
                    726:
                    727:        if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
                    728:                return;
1.129     nicm      729:        if (!window_pane_visible(wp) || wp->flags & PANE_DROP)
1.15      nicm      730:                return;
                    731:
1.178     nicm      732:        TAILQ_FOREACH(c, &clients, entry) {
1.182     nicm      733:                if (!tty_client_ready(c, wp))
1.15      nicm      734:                        continue;
                    735:
1.139     nicm      736:                ctx->xoff = wp->xoff;
                    737:                ctx->yoff = wp->yoff;
                    738:                if (status_at_line(c) == 0)
                    739:                        ctx->yoff++;
1.113     nicm      740:
1.139     nicm      741:                cmdfn(&c->tty, ctx);
1.1       nicm      742:        }
                    743: }
                    744:
                    745: void
1.24      nicm      746: tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      747: {
1.77      nicm      748:        struct window_pane      *wp = ctx->wp;
1.1       nicm      749:
1.206   ! nicm      750:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, wp) ||
        !           751:            (!tty_term_has(tty->term, TTYC_DCH) &&
        !           752:            !tty_term_has(tty->term, TTYC_DCH1))) {
1.176     nicm      753:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      754:                return;
                    755:        }
                    756:
1.176     nicm      757:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      758:
1.77      nicm      759:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      760:
1.206   ! nicm      761:        tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
1.1       nicm      762: }
                    763:
                    764: void
1.24      nicm      765: tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      766: {
1.77      nicm      767:        struct window_pane      *wp = ctx->wp;
1.1       nicm      768:
1.176     nicm      769:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, wp) ||
1.26      nicm      770:            (!tty_term_has(tty->term, TTYC_DCH) &&
                    771:            !tty_term_has(tty->term, TTYC_DCH1))) {
1.176     nicm      772:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      773:                return;
                    774:        }
                    775:
1.176     nicm      776:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      777:
1.77      nicm      778:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      779:
1.206   ! nicm      780:        tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
1.146     nicm      781: }
                    782:
                    783: void
                    784: tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx)
                    785: {
                    786:        u_int   i;
                    787:
1.176     nicm      788:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.146     nicm      789:
                    790:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    791:
1.176     nicm      792:        if (tty_term_has(tty->term, TTYC_ECH) && !tty_fake_bce(tty, ctx->wp))
1.146     nicm      793:                tty_putcode1(tty, TTYC_ECH, ctx->num);
                    794:        else {
                    795:                for (i = 0; i < ctx->num; i++)
                    796:                        tty_putc(tty, ' ');
                    797:        }
1.1       nicm      798: }
                    799:
                    800: void
1.24      nicm      801: tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      802: {
1.176     nicm      803:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, ctx->wp) ||
1.77      nicm      804:            !tty_term_has(tty->term, TTYC_CSR) ||
1.72      nicm      805:            !tty_term_has(tty->term, TTYC_IL1)) {
1.14      nicm      806:                tty_redraw_region(tty, ctx);
1.1       nicm      807:                return;
                    808:        }
                    809:
1.176     nicm      810:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.1       nicm      811:
1.77      nicm      812:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                    813:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      814:
1.12      nicm      815:        tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
1.1       nicm      816: }
                    817:
                    818: void
1.24      nicm      819: tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      820: {
1.176     nicm      821:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, ctx->wp) ||
1.72      nicm      822:            !tty_term_has(tty->term, TTYC_CSR) ||
                    823:            !tty_term_has(tty->term, TTYC_DL1)) {
1.14      nicm      824:                tty_redraw_region(tty, ctx);
1.1       nicm      825:                return;
                    826:        }
                    827:
1.176     nicm      828:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.1       nicm      829:
1.77      nicm      830:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                    831:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      832:
1.12      nicm      833:        tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
1.1       nicm      834: }
                    835:
                    836: void
1.24      nicm      837: tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      838: {
1.77      nicm      839:        struct window_pane      *wp = ctx->wp;
1.12      nicm      840:        struct screen           *s = wp->screen;
1.1       nicm      841:
1.176     nicm      842:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      843:
1.77      nicm      844:        tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.41      nicm      845:
1.176     nicm      846:        if (tty_pane_full_width(tty, ctx) && !tty_fake_bce(tty, wp) &&
                    847:            tty_term_has(tty->term, TTYC_EL))
1.1       nicm      848:                tty_putcode(tty, TTYC_EL);
1.133     nicm      849:        else
                    850:                tty_repeat_space(tty, screen_size_x(s));
1.1       nicm      851: }
                    852:
                    853: void
1.24      nicm      854: tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      855: {
1.77      nicm      856:        struct window_pane      *wp = ctx->wp;
1.12      nicm      857:        struct screen           *s = wp->screen;
1.1       nicm      858:
1.176     nicm      859:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      860:
1.41      nicm      861:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    862:
1.176     nicm      863:        if (tty_pane_full_width(tty, ctx) &&
                    864:            tty_term_has(tty->term, TTYC_EL) && !tty_fake_bce(tty, wp))
1.1       nicm      865:                tty_putcode(tty, TTYC_EL);
1.133     nicm      866:        else
                    867:                tty_repeat_space(tty, screen_size_x(s) - ctx->ocx);
1.1       nicm      868: }
                    869:
                    870: void
1.24      nicm      871: tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      872: {
1.176     nicm      873:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.1       nicm      874:
1.176     nicm      875:        if (ctx->xoff == 0 && tty_term_has(tty->term, TTYC_EL1) &&
                    876:            !tty_fake_bce(tty, ctx->wp)) {
1.41      nicm      877:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      878:                tty_putcode(tty, TTYC_EL1);
                    879:        } else {
1.41      nicm      880:                tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.133     nicm      881:                tty_repeat_space(tty, ctx->ocx + 1);
1.1       nicm      882:        }
                    883: }
                    884:
                    885: void
1.24      nicm      886: tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      887: {
1.56      nicm      888:        if (ctx->ocy != ctx->orupper)
                    889:                return;
                    890:
1.176     nicm      891:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, ctx->wp) ||
1.70      nicm      892:            !tty_term_has(tty->term, TTYC_CSR) ||
                    893:            !tty_term_has(tty->term, TTYC_RI)) {
1.14      nicm      894:                tty_redraw_region(tty, ctx);
1.1       nicm      895:                return;
                    896:        }
                    897:
1.176     nicm      898:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.77      nicm      899:
1.56      nicm      900:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                    901:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
1.77      nicm      902:
1.56      nicm      903:        tty_putcode(tty, TTYC_RI);
1.1       nicm      904: }
                    905:
                    906: void
1.24      nicm      907: tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      908: {
1.77      nicm      909:        struct window_pane      *wp = ctx->wp;
1.1       nicm      910:
1.56      nicm      911:        if (ctx->ocy != ctx->orlower)
                    912:                return;
                    913:
1.176     nicm      914:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, wp) ||
1.1       nicm      915:            !tty_term_has(tty->term, TTYC_CSR)) {
1.128     nicm      916:                if (tty_large_region(tty, ctx))
                    917:                        wp->flags |= PANE_REDRAW;
1.140     nicm      918:                else
1.128     nicm      919:                        tty_redraw_region(tty, ctx);
1.1       nicm      920:                return;
                    921:        }
1.52      nicm      922:
                    923:        /*
                    924:         * If this line wrapped naturally (ctx->num is nonzero), don't do
                    925:         * anything - the cursor can just be moved to the last cell and wrap
                    926:         * naturally.
                    927:         */
                    928:        if (ctx->num && !(tty->term->flags & TERM_EARLYWRAP))
                    929:                return;
1.1       nicm      930:
1.176     nicm      931:        tty_attributes(tty, &grid_default_cell, wp);
1.77      nicm      932:
1.56      nicm      933:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                    934:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.77      nicm      935:
1.56      nicm      936:        tty_putc(tty, '\n');
1.1       nicm      937: }
                    938:
                    939: void
1.24      nicm      940: tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      941: {
1.77      nicm      942:        struct window_pane      *wp = ctx->wp;
1.12      nicm      943:        struct screen           *s = wp->screen;
1.204     nicm      944:        u_int                    i, j;
1.1       nicm      945:
1.176     nicm      946:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      947:
1.39      nicm      948:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41      nicm      949:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.39      nicm      950:
1.176     nicm      951:        if (tty_pane_full_width(tty, ctx) &&
                    952:            tty_term_has(tty->term, TTYC_EL) && !tty_fake_bce(tty, wp)) {
1.1       nicm      953:                tty_putcode(tty, TTYC_EL);
1.14      nicm      954:                if (ctx->ocy != screen_size_y(s) - 1) {
1.41      nicm      955:                        tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
1.14      nicm      956:                        for (i = ctx->ocy + 1; i < screen_size_y(s); i++) {
1.1       nicm      957:                                tty_putcode(tty, TTYC_EL);
                    958:                                if (i == screen_size_y(s) - 1)
                    959:                                        continue;
                    960:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                    961:                                tty->cy++;
                    962:                        }
                    963:                }
                    964:        } else {
1.133     nicm      965:                tty_repeat_space(tty, screen_size_x(s) - ctx->ocx);
1.68      nicm      966:                for (j = ctx->ocy + 1; j < screen_size_y(s); j++) {
1.41      nicm      967:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm      968:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm      969:                }
                    970:        }
                    971: }
                    972:
                    973: void
1.24      nicm      974: tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      975: {
1.77      nicm      976:        struct window_pane      *wp = ctx->wp;
1.12      nicm      977:        struct screen           *s = wp->screen;
1.204     nicm      978:        u_int                    i, j;
1.1       nicm      979:
1.176     nicm      980:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      981:
1.39      nicm      982:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41      nicm      983:        tty_cursor_pane(tty, ctx, 0, 0);
1.39      nicm      984:
1.176     nicm      985:        if (tty_pane_full_width(tty, ctx) &&
                    986:            tty_term_has(tty->term, TTYC_EL) && !tty_fake_bce(tty, wp)) {
1.14      nicm      987:                for (i = 0; i < ctx->ocy; i++) {
1.1       nicm      988:                        tty_putcode(tty, TTYC_EL);
                    989:                        tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                    990:                        tty->cy++;
                    991:                }
                    992:        } else {
1.14      nicm      993:                for (j = 0; j < ctx->ocy; j++) {
1.41      nicm      994:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm      995:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm      996:                }
                    997:        }
1.133     nicm      998:        tty_repeat_space(tty, ctx->ocx + 1);
1.1       nicm      999: }
                   1000:
                   1001: void
1.24      nicm     1002: tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1003: {
1.77      nicm     1004:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1005:        struct screen           *s = wp->screen;
1.204     nicm     1006:        u_int                    i, j;
1.1       nicm     1007:
1.176     nicm     1008:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm     1009:
1.39      nicm     1010:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41      nicm     1011:        tty_cursor_pane(tty, ctx, 0, 0);
1.39      nicm     1012:
1.176     nicm     1013:        if (tty_pane_full_width(tty, ctx) &&
                   1014:            tty_term_has(tty->term, TTYC_EL) && !tty_fake_bce(tty, wp)) {
1.1       nicm     1015:                for (i = 0; i < screen_size_y(s); i++) {
                   1016:                        tty_putcode(tty, TTYC_EL);
                   1017:                        if (i != screen_size_y(s) - 1) {
                   1018:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1019:                                tty->cy++;
                   1020:                        }
                   1021:                }
                   1022:        } else {
                   1023:                for (j = 0; j < screen_size_y(s); j++) {
1.41      nicm     1024:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm     1025:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm     1026:                }
1.4       nicm     1027:        }
                   1028: }
                   1029:
                   1030: void
1.24      nicm     1031: tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
1.4       nicm     1032: {
1.12      nicm     1033:        struct window_pane      *wp = ctx->wp;
                   1034:        struct screen           *s = wp->screen;
                   1035:        u_int                    i, j;
1.4       nicm     1036:
1.176     nicm     1037:        tty_attributes(tty, &grid_default_cell, wp);
1.4       nicm     1038:
1.39      nicm     1039:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.4       nicm     1040:
                   1041:        for (j = 0; j < screen_size_y(s); j++) {
1.41      nicm     1042:                tty_cursor_pane(tty, ctx, 0, j);
1.4       nicm     1043:                for (i = 0; i < screen_size_x(s); i++)
                   1044:                        tty_putc(tty, 'E');
1.1       nicm     1045:        }
                   1046: }
                   1047:
                   1048: void
1.24      nicm     1049: tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1050: {
1.46      nicm     1051:        struct window_pane      *wp = ctx->wp;
                   1052:        struct screen           *s = wp->screen;
1.203     nicm     1053:        u_int                    cx, width;
1.46      nicm     1054:
1.203     nicm     1055:        if (ctx->ocy == ctx->orlower)
                   1056:                tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.46      nicm     1057:
1.57      nicm     1058:        /* Is the cursor in the very last position? */
1.193     nicm     1059:        width = ctx->cell->data.width;
1.102     nicm     1060:        if (ctx->ocx > wp->sx - width) {
1.113     nicm     1061:                if (ctx->xoff != 0 || wp->sx != tty->sx) {
1.57      nicm     1062:                        /*
                   1063:                         * The pane doesn't fill the entire line, the linefeed
                   1064:                         * will already have happened, so just move the cursor.
                   1065:                         */
1.125     nicm     1066:                        if (ctx->ocy != wp->yoff + wp->screen->rlower)
1.122     nicm     1067:                                tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
                   1068:                        else
                   1069:                                tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.57      nicm     1070:                } else if (tty->cx < tty->sx) {
                   1071:                        /*
                   1072:                         * The cursor isn't in the last position already, so
1.102     nicm     1073:                         * move as far left as possible and redraw the last
1.57      nicm     1074:                         * cell to move into the last position.
                   1075:                         */
1.193     nicm     1076:                        cx = screen_size_x(s) - ctx->last_cell.data.width;
1.50      nicm     1077:                        tty_cursor_pane(tty, ctx, cx, ctx->ocy);
1.176     nicm     1078:                        tty_cell(tty, &ctx->last_cell, wp);
1.50      nicm     1079:                }
                   1080:        } else
1.46      nicm     1081:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm     1082:
1.176     nicm     1083:        tty_cell(tty, ctx->cell, wp);
1.1       nicm     1084: }
                   1085:
                   1086: void
1.24      nicm     1087: tty_cmd_utf8character(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1088: {
1.53      nicm     1089:        struct window_pane      *wp = ctx->wp;
1.1       nicm     1090:
1.53      nicm     1091:        /*
                   1092:         * Cannot rely on not being a partial character, so just redraw the
                   1093:         * whole line.
                   1094:         */
1.176     nicm     1095:        tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.106     nicm     1096: }
                   1097:
                   1098: void
                   1099: tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx)
                   1100: {
                   1101:        char    *buf;
                   1102:        size_t   off;
                   1103:
                   1104:        if (!tty_term_has(tty->term, TTYC_MS))
                   1105:                return;
                   1106:
                   1107:        off = 4 * ((ctx->num + 2) / 3) + 1; /* storage for base64 */
                   1108:        buf = xmalloc(off);
                   1109:
                   1110:        b64_ntop(ctx->ptr, ctx->num, buf, off);
                   1111:        tty_putcode_ptr2(tty, TTYC_MS, "", buf);
                   1112:
1.138     nicm     1113:        free(buf);
1.100     nicm     1114: }
                   1115:
                   1116: void
                   1117: tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
                   1118: {
                   1119:        u_int    i;
                   1120:        u_char  *str = ctx->ptr;
                   1121:
                   1122:        for (i = 0; i < ctx->num; i++)
                   1123:                tty_putc(tty, str[i]);
1.141     nicm     1124:
                   1125:        tty->cx = tty->cy = UINT_MAX;
                   1126:        tty->rupper = tty->rlower = UINT_MAX;
                   1127:
1.176     nicm     1128:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.141     nicm     1129:        tty_cursor(tty, 0, 0);
1.1       nicm     1130: }
                   1131:
                   1132: void
1.176     nicm     1133: tty_cell(struct tty *tty, const struct grid_cell *gc,
                   1134:     const struct window_pane *wp)
1.1       nicm     1135: {
1.193     nicm     1136:        u_int   i;
1.1       nicm     1137:
                   1138:        /* Skip last character if terminal is stupid. */
                   1139:        if (tty->term->flags & TERM_EARLYWRAP &&
                   1140:            tty->cy == tty->sy - 1 && tty->cx == tty->sx - 1)
                   1141:                return;
                   1142:
                   1143:        /* If this is a padding character, do nothing. */
                   1144:        if (gc->flags & GRID_FLAG_PADDING)
                   1145:                return;
                   1146:
                   1147:        /* Set the attributes. */
1.176     nicm     1148:        tty_attributes(tty, gc, wp);
1.1       nicm     1149:
1.147     nicm     1150:        /* Get the cell and if ASCII write with putc to do ACS translation. */
1.193     nicm     1151:        if (gc->data.size == 1) {
                   1152:                if (*gc->data.data < 0x20 || *gc->data.data == 0x7f)
1.1       nicm     1153:                        return;
1.193     nicm     1154:                tty_putc(tty, *gc->data.data);
1.1       nicm     1155:                return;
                   1156:        }
                   1157:
1.147     nicm     1158:        /* If not UTF-8, write _. */
1.1       nicm     1159:        if (!(tty->flags & TTY_UTF8)) {
1.193     nicm     1160:                for (i = 0; i < gc->data.width; i++)
1.1       nicm     1161:                        tty_putc(tty, '_');
                   1162:                return;
                   1163:        }
                   1164:
1.147     nicm     1165:        /* Write the data. */
1.193     nicm     1166:        tty_putn(tty, gc->data.data, gc->data.size, gc->data.width);
1.1       nicm     1167: }
                   1168:
                   1169: void
                   1170: tty_reset(struct tty *tty)
                   1171: {
                   1172:        struct grid_cell        *gc = &tty->cell;
                   1173:
1.205     nicm     1174:        if (grid_cells_equal(gc, &grid_default_cell))
1.1       nicm     1175:                return;
                   1176:
1.90      nicm     1177:        if ((gc->attr & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1.1       nicm     1178:                tty_putcode(tty, TTYC_RMACS);
                   1179:        tty_putcode(tty, TTYC_SGR0);
                   1180:        memcpy(gc, &grid_default_cell, sizeof *gc);
                   1181: }
                   1182:
1.40      nicm     1183: /* Set region inside pane. */
1.1       nicm     1184: void
1.196     nicm     1185: tty_region_pane(struct tty *tty, const struct tty_ctx *ctx, u_int rupper,
                   1186:     u_int rlower)
1.1       nicm     1187: {
1.113     nicm     1188:        tty_region(tty, ctx->yoff + rupper, ctx->yoff + rlower);
1.39      nicm     1189: }
                   1190:
1.40      nicm     1191: /* Set region at absolute position. */
1.39      nicm     1192: void
1.40      nicm     1193: tty_region(struct tty *tty, u_int rupper, u_int rlower)
1.39      nicm     1194: {
                   1195:        if (tty->rlower == rlower && tty->rupper == rupper)
                   1196:                return;
1.1       nicm     1197:        if (!tty_term_has(tty->term, TTYC_CSR))
                   1198:                return;
1.39      nicm     1199:
                   1200:        tty->rupper = rupper;
                   1201:        tty->rlower = rlower;
1.55      nicm     1202:
                   1203:        /*
                   1204:         * Some terminals (such as PuTTY) do not correctly reset the cursor to
                   1205:         * 0,0 if it is beyond the last column (they do not reset their wrap
                   1206:         * flag so further output causes a line feed). As a workaround, do an
                   1207:         * explicit move to 0 first.
                   1208:         */
                   1209:        if (tty->cx >= tty->sx)
                   1210:                tty_cursor(tty, 0, tty->cy);
1.42      nicm     1211:
1.39      nicm     1212:        tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1.78      nicm     1213:        tty_cursor(tty, 0, 0);
1.1       nicm     1214: }
                   1215:
1.42      nicm     1216: /* Move cursor inside pane. */
1.1       nicm     1217: void
1.41      nicm     1218: tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
                   1219: {
1.113     nicm     1220:        tty_cursor(tty, ctx->xoff + cx, ctx->yoff + cy);
1.41      nicm     1221: }
                   1222:
1.42      nicm     1223: /* Move cursor to absolute position. */
1.41      nicm     1224: void
                   1225: tty_cursor(struct tty *tty, u_int cx, u_int cy)
1.1       nicm     1226: {
1.42      nicm     1227:        struct tty_term *term = tty->term;
                   1228:        u_int            thisx, thisy;
                   1229:        int              change;
1.77      nicm     1230:
1.42      nicm     1231:        if (cx > tty->sx - 1)
                   1232:                cx = tty->sx - 1;
                   1233:
                   1234:        thisx = tty->cx;
                   1235:        thisy = tty->cy;
                   1236:
                   1237:        /* No change. */
                   1238:        if (cx == thisx && cy == thisy)
                   1239:                return;
                   1240:
1.43      nicm     1241:        /* Very end of the line, just use absolute movement. */
                   1242:        if (thisx > tty->sx - 1)
                   1243:                goto absolute;
                   1244:
1.42      nicm     1245:        /* Move to home position (0, 0). */
                   1246:        if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
                   1247:                tty_putcode(tty, TTYC_HOME);
                   1248:                goto out;
                   1249:        }
                   1250:
                   1251:        /* Zero on the next line. */
1.48      nicm     1252:        if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower) {
1.1       nicm     1253:                tty_putc(tty, '\r');
1.42      nicm     1254:                tty_putc(tty, '\n');
                   1255:                goto out;
                   1256:        }
                   1257:
1.45      nicm     1258:        /* Moving column or row. */
1.42      nicm     1259:        if (cy == thisy) {
1.45      nicm     1260:                /*
                   1261:                 * Moving column only, row staying the same.
                   1262:                 */
                   1263:
1.42      nicm     1264:                /* To left edge. */
1.202     nicm     1265:                if (cx == 0) {
1.42      nicm     1266:                        tty_putc(tty, '\r');
                   1267:                        goto out;
                   1268:                }
                   1269:
                   1270:                /* One to the left. */
                   1271:                if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) {
                   1272:                        tty_putcode(tty, TTYC_CUB1);
                   1273:                        goto out;
                   1274:                }
                   1275:
                   1276:                /* One to the right. */
                   1277:                if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) {
                   1278:                        tty_putcode(tty, TTYC_CUF1);
                   1279:                        goto out;
                   1280:                }
                   1281:
                   1282:                /* Calculate difference. */
                   1283:                change = thisx - cx;    /* +ve left, -ve right */
                   1284:
                   1285:                /*
                   1286:                 * Use HPA if change is larger than absolute, otherwise move
                   1287:                 * the cursor with CUB/CUF.
                   1288:                 */
1.87      nicm     1289:                if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) {
1.42      nicm     1290:                        tty_putcode1(tty, TTYC_HPA, cx);
                   1291:                        goto out;
                   1292:                } else if (change > 0 && tty_term_has(term, TTYC_CUB)) {
1.202     nicm     1293:                        if (change == 2 && tty_term_has(term, TTYC_CUB1)) {
                   1294:                                tty_putcode(tty, TTYC_CUB1);
                   1295:                                tty_putcode(tty, TTYC_CUB1);
                   1296:                                goto out;
                   1297:                        }
1.42      nicm     1298:                        tty_putcode1(tty, TTYC_CUB, change);
                   1299:                        goto out;
                   1300:                } else if (change < 0 && tty_term_has(term, TTYC_CUF)) {
                   1301:                        tty_putcode1(tty, TTYC_CUF, -change);
                   1302:                        goto out;
                   1303:                }
1.45      nicm     1304:        } else if (cx == thisx) {
                   1305:                /*
                   1306:                 * Moving row only, column staying the same.
                   1307:                 */
1.42      nicm     1308:
                   1309:                /* One above. */
1.77      nicm     1310:                if (thisy != tty->rupper &&
1.42      nicm     1311:                    cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) {
                   1312:                        tty_putcode(tty, TTYC_CUU1);
                   1313:                        goto out;
                   1314:                }
                   1315:
                   1316:                /* One below. */
1.49      nicm     1317:                if (thisy != tty->rlower &&
1.42      nicm     1318:                    cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) {
                   1319:                        tty_putcode(tty, TTYC_CUD1);
                   1320:                        goto out;
                   1321:                }
                   1322:
                   1323:                /* Calculate difference. */
                   1324:                change = thisy - cy;    /* +ve up, -ve down */
                   1325:
                   1326:                /*
1.77      nicm     1327:                 * Try to use VPA if change is larger than absolute or if this
                   1328:                 * change would cross the scroll region, otherwise use CUU/CUD.
1.42      nicm     1329:                 */
1.87      nicm     1330:                if ((u_int) abs(change) > cy ||
1.42      nicm     1331:                    (change < 0 && cy - change > tty->rlower) ||
1.44      nicm     1332:                    (change > 0 && cy - change < tty->rupper)) {
                   1333:                            if (tty_term_has(term, TTYC_VPA)) {
                   1334:                                    tty_putcode1(tty, TTYC_VPA, cy);
                   1335:                                    goto out;
                   1336:                            }
1.42      nicm     1337:                } else if (change > 0 && tty_term_has(term, TTYC_CUU)) {
                   1338:                        tty_putcode1(tty, TTYC_CUU, change);
                   1339:                        goto out;
                   1340:                } else if (change < 0 && tty_term_has(term, TTYC_CUD)) {
                   1341:                        tty_putcode1(tty, TTYC_CUD, -change);
                   1342:                        goto out;
                   1343:                }
                   1344:        }
                   1345:
1.43      nicm     1346: absolute:
1.42      nicm     1347:        /* Absolute movement. */
                   1348:        tty_putcode2(tty, TTYC_CUP, cy, cx);
                   1349:
                   1350: out:
                   1351:        tty->cx = cx;
                   1352:        tty->cy = cy;
1.1       nicm     1353: }
                   1354:
                   1355: void
1.176     nicm     1356: tty_attributes(struct tty *tty, const struct grid_cell *gc,
                   1357:     const struct window_pane *wp)
1.1       nicm     1358: {
1.63      nicm     1359:        struct grid_cell        *tc = &tty->cell, gc2;
1.85      nicm     1360:        u_char                   changed;
1.61      nicm     1361:
1.85      nicm     1362:        memcpy(&gc2, gc, sizeof gc2);
1.203     nicm     1363:        if (wp != NULL)
                   1364:                tty_default_colours(&gc2, wp);
1.63      nicm     1365:
1.18      nicm     1366:        /*
                   1367:         * If no setab, try to use the reverse attribute as a best-effort for a
                   1368:         * non-default background. This is a bit of a hack but it doesn't do
                   1369:         * any serious harm and makes a couple of applications happier.
                   1370:         */
                   1371:        if (!tty_term_has(tty->term, TTYC_SETAB)) {
1.85      nicm     1372:                if (gc2.attr & GRID_ATTR_REVERSE) {
                   1373:                        if (gc2.fg != 7 && gc2.fg != 8)
1.64      nicm     1374:                                gc2.attr &= ~GRID_ATTR_REVERSE;
1.18      nicm     1375:                } else {
1.85      nicm     1376:                        if (gc2.bg != 0 && gc2.bg != 8)
1.64      nicm     1377:                                gc2.attr |= GRID_ATTR_REVERSE;
1.18      nicm     1378:                }
                   1379:        }
1.1       nicm     1380:
1.85      nicm     1381:        /* Fix up the colours if necessary. */
                   1382:        tty_check_fg(tty, &gc2);
                   1383:        tty_check_bg(tty, &gc2);
                   1384:
1.64      nicm     1385:        /* If any bits are being cleared, reset everything. */
1.85      nicm     1386:        if (tc->attr & ~gc2.attr)
1.64      nicm     1387:                tty_reset(tty);
                   1388:
                   1389:        /*
                   1390:         * Set the colours. This may call tty_reset() (so it comes next) and
                   1391:         * may add to (NOT remove) the desired attributes by changing new_attr.
                   1392:         */
1.85      nicm     1393:        tty_colours(tty, &gc2);
1.64      nicm     1394:
1.1       nicm     1395:        /* Filter out attribute bits already set. */
1.85      nicm     1396:        changed = gc2.attr & ~tc->attr;
                   1397:        tc->attr = gc2.attr;
1.1       nicm     1398:
                   1399:        /* Set the attributes. */
                   1400:        if (changed & GRID_ATTR_BRIGHT)
                   1401:                tty_putcode(tty, TTYC_BOLD);
                   1402:        if (changed & GRID_ATTR_DIM)
                   1403:                tty_putcode(tty, TTYC_DIM);
1.180     nicm     1404:        if (changed & GRID_ATTR_ITALICS)
                   1405:                tty_set_italics(tty);
1.1       nicm     1406:        if (changed & GRID_ATTR_UNDERSCORE)
                   1407:                tty_putcode(tty, TTYC_SMUL);
                   1408:        if (changed & GRID_ATTR_BLINK)
                   1409:                tty_putcode(tty, TTYC_BLINK);
                   1410:        if (changed & GRID_ATTR_REVERSE) {
                   1411:                if (tty_term_has(tty->term, TTYC_REV))
                   1412:                        tty_putcode(tty, TTYC_REV);
                   1413:                else if (tty_term_has(tty->term, TTYC_SMSO))
                   1414:                        tty_putcode(tty, TTYC_SMSO);
                   1415:        }
                   1416:        if (changed & GRID_ATTR_HIDDEN)
                   1417:                tty_putcode(tty, TTYC_INVIS);
1.90      nicm     1418:        if ((changed & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1.1       nicm     1419:                tty_putcode(tty, TTYC_SMACS);
                   1420: }
                   1421:
1.61      nicm     1422: void
1.85      nicm     1423: tty_colours(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1424: {
1.61      nicm     1425:        struct grid_cell        *tc = &tty->cell;
1.204     nicm     1426:        int                      have_ax;
1.61      nicm     1427:
                   1428:        /* No changes? Nothing is necessary. */
1.204     nicm     1429:        if (gc->fg == tc->fg && gc->bg == tc->bg)
1.63      nicm     1430:                return;
1.1       nicm     1431:
1.61      nicm     1432:        /*
                   1433:         * Is either the default colour? This is handled specially because the
                   1434:         * best solution might be to reset both colours to default, in which
                   1435:         * case if only one is default need to fall onward to set the other
                   1436:         * colour.
                   1437:         */
1.204     nicm     1438:        if (gc->fg == 8 || gc->bg == 8) {
1.61      nicm     1439:                /*
                   1440:                 * If don't have AX but do have op, send sgr0 (op can't
                   1441:                 * actually be used because it is sometimes the same as sgr0
                   1442:                 * and sometimes isn't). This resets both colours to default.
                   1443:                 *
                   1444:                 * Otherwise, try to set the default colour only as needed.
                   1445:                 */
1.174     nicm     1446:                have_ax = tty_term_flag(tty->term, TTYC_AX);
1.61      nicm     1447:                if (!have_ax && tty_term_has(tty->term, TTYC_OP))
                   1448:                        tty_reset(tty);
                   1449:                else {
1.204     nicm     1450:                        if (gc->fg == 8 && tc->fg != 8) {
1.61      nicm     1451:                                if (have_ax)
                   1452:                                        tty_puts(tty, "\033[39m");
1.204     nicm     1453:                                else if (tc->fg != 7)
1.61      nicm     1454:                                        tty_putcode1(tty, TTYC_SETAF, 7);
                   1455:                                tc->fg = 8;
                   1456:                        }
1.204     nicm     1457:                        if (gc->bg == 8 && tc->bg != 8) {
1.77      nicm     1458:                                if (have_ax)
1.61      nicm     1459:                                        tty_puts(tty, "\033[49m");
1.204     nicm     1460:                                else if (tc->bg != 0)
1.61      nicm     1461:                                        tty_putcode1(tty, TTYC_SETAB, 0);
                   1462:                                tc->bg = 8;
                   1463:                        }
                   1464:                }
                   1465:        }
1.1       nicm     1466:
1.61      nicm     1467:        /* Set the foreground colour. */
1.204     nicm     1468:        if (gc->fg != 8 && gc->fg != tc->fg)
1.85      nicm     1469:                tty_colours_fg(tty, gc);
1.1       nicm     1470:
1.61      nicm     1471:        /*
                   1472:         * Set the background colour. This must come after the foreground as
                   1473:         * tty_colour_fg() can call tty_reset().
                   1474:         */
1.204     nicm     1475:        if (gc->bg != 8 && gc->bg != tc->bg)
1.73      nicm     1476:                tty_colours_bg(tty, gc);
1.1       nicm     1477: }
                   1478:
                   1479: void
1.85      nicm     1480: tty_check_fg(struct tty *tty, struct grid_cell *gc)
                   1481: {
1.204     nicm     1482:        u_char  r, g, b;
                   1483:        u_int   colours;
1.85      nicm     1484:
1.199     nicm     1485:        /* Is this a 24-bit colour? */
1.204     nicm     1486:        if (gc->fg & COLOUR_FLAG_RGB) {
1.199     nicm     1487:                /* Not a 24-bit terminal? Translate to 256-colour palette. */
                   1488:                if (!tty_term_flag(tty->term, TTYC_TC)) {
1.204     nicm     1489:                        colour_split_rgb(gc->fg, &r, &g, &b);
                   1490:                        gc->fg = colour_find_rgb(r, g, b);
                   1491:                } else
1.200     nicm     1492:                        return;
1.199     nicm     1493:        }
1.175     nicm     1494:        colours = tty_term_number(tty->term, TTYC_COLORS);
                   1495:
1.85      nicm     1496:        /* Is this a 256-colour colour? */
1.204     nicm     1497:        if (gc->fg & COLOUR_FLAG_256) {
1.85      nicm     1498:                /* And not a 256 colour mode? */
1.158     nicm     1499:                if (!(tty->term->flags & TERM_256COLOURS) &&
1.85      nicm     1500:                    !(tty->term_flags & TERM_256COLOURS)) {
                   1501:                        gc->fg = colour_256to16(gc->fg);
                   1502:                        if (gc->fg & 8) {
                   1503:                                gc->fg &= 7;
1.175     nicm     1504:                                if (colours >= 16)
                   1505:                                        gc->fg += 90;
                   1506:                                else
                   1507:                                        gc->attr |= GRID_ATTR_BRIGHT;
1.85      nicm     1508:                        } else
                   1509:                                gc->attr &= ~GRID_ATTR_BRIGHT;
                   1510:                }
                   1511:                return;
                   1512:        }
                   1513:
                   1514:        /* Is this an aixterm colour? */
                   1515:        if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) {
                   1516:                gc->fg -= 90;
                   1517:                gc->attr |= GRID_ATTR_BRIGHT;
                   1518:        }
                   1519: }
                   1520:
                   1521: void
                   1522: tty_check_bg(struct tty *tty, struct grid_cell *gc)
                   1523: {
1.204     nicm     1524:        u_char  r, g, b;
                   1525:        u_int   colours;
1.85      nicm     1526:
1.199     nicm     1527:        /* Is this a 24-bit colour? */
1.204     nicm     1528:        if (gc->bg & COLOUR_FLAG_RGB) {
1.199     nicm     1529:                /* Not a 24-bit terminal? Translate to 256-colour palette. */
                   1530:                if (!tty_term_flag(tty->term, TTYC_TC)) {
1.204     nicm     1531:                        colour_split_rgb(gc->bg, &r, &g, &b);
                   1532:                        gc->bg = colour_find_rgb(r, g, b);
                   1533:                } else
1.200     nicm     1534:                        return;
1.199     nicm     1535:        }
1.175     nicm     1536:        colours = tty_term_number(tty->term, TTYC_COLORS);
                   1537:
1.85      nicm     1538:        /* Is this a 256-colour colour? */
1.204     nicm     1539:        if (gc->bg & COLOUR_FLAG_256) {
1.85      nicm     1540:                /*
                   1541:                 * And not a 256 colour mode? Translate to 16-colour
                   1542:                 * palette. Bold background doesn't exist portably, so just
                   1543:                 * discard the bold bit if set.
                   1544:                 */
1.158     nicm     1545:                if (!(tty->term->flags & TERM_256COLOURS) &&
1.85      nicm     1546:                    !(tty->term_flags & TERM_256COLOURS)) {
                   1547:                        gc->bg = colour_256to16(gc->bg);
1.175     nicm     1548:                        if (gc->bg & 8) {
1.85      nicm     1549:                                gc->bg &= 7;
1.175     nicm     1550:                                if (colours >= 16)
                   1551:                                        gc->fg += 90;
                   1552:                        }
1.85      nicm     1553:                }
                   1554:                return;
                   1555:        }
                   1556:
                   1557:        /* Is this an aixterm colour? */
1.175     nicm     1558:        if (gc->bg >= 90 && gc->bg <= 97 && colours < 16)
1.85      nicm     1559:                gc->bg -= 90;
                   1560: }
                   1561:
                   1562: void
                   1563: tty_colours_fg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1564: {
1.61      nicm     1565:        struct grid_cell        *tc = &tty->cell;
1.79      nicm     1566:        char                     s[32];
1.1       nicm     1567:
1.204     nicm     1568:        /* Is this a 24-bit or 256-colour colour? */
                   1569:        if (gc->fg & COLOUR_FLAG_RGB ||
                   1570:            gc->fg & COLOUR_FLAG_256) {
                   1571:                if (tty_try_colour(tty, gc->fg, "38") == 0)
1.61      nicm     1572:                        goto save_fg;
1.199     nicm     1573:                /* Should not get here, already converted in tty_check_fg. */
1.85      nicm     1574:                return;
1.1       nicm     1575:        }
                   1576:
1.79      nicm     1577:        /* Is this an aixterm bright colour? */
1.204     nicm     1578:        if (gc->fg >= 90 && gc->fg <= 97) {
                   1579:                xsnprintf(s, sizeof s, "\033[%dm", gc->fg);
1.85      nicm     1580:                tty_puts(tty, s);
                   1581:                goto save_fg;
1.79      nicm     1582:        }
                   1583:
1.61      nicm     1584:        /* Otherwise set the foreground colour. */
1.204     nicm     1585:        tty_putcode1(tty, TTYC_SETAF, gc->fg);
1.61      nicm     1586:
1.77      nicm     1587: save_fg:
1.61      nicm     1588:        /* Save the new values in the terminal current cell. */
1.204     nicm     1589:        tc->fg = gc->fg;
1.1       nicm     1590: }
                   1591:
                   1592: void
1.73      nicm     1593: tty_colours_bg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1594: {
1.61      nicm     1595:        struct grid_cell        *tc = &tty->cell;
1.79      nicm     1596:        char                     s[32];
1.1       nicm     1597:
1.204     nicm     1598:        /* Is this a 24-bit or 256-colour colour? */
                   1599:        if (gc->bg & COLOUR_FLAG_RGB ||
                   1600:            gc->bg & COLOUR_FLAG_256) {
                   1601:                if (tty_try_colour(tty, gc->bg, "48") == 0)
1.61      nicm     1602:                        goto save_bg;
1.199     nicm     1603:                /* Should not get here, already converted in tty_check_bg. */
1.85      nicm     1604:                return;
1.79      nicm     1605:        }
                   1606:
                   1607:        /* Is this an aixterm bright colour? */
1.204     nicm     1608:        if (gc->bg >= 90 && gc->bg <= 97) {
                   1609:                xsnprintf(s, sizeof s, "\033[%dm", gc->bg + 10);
1.175     nicm     1610:                tty_puts(tty, s);
                   1611:                goto save_bg;
1.1       nicm     1612:        }
                   1613:
1.61      nicm     1614:        /* Otherwise set the background colour. */
1.204     nicm     1615:        tty_putcode1(tty, TTYC_SETAB, gc->bg);
1.61      nicm     1616:
                   1617: save_bg:
                   1618:        /* Save the new values in the terminal current cell. */
1.204     nicm     1619:        tc->bg = gc->bg;
1.61      nicm     1620: }
                   1621:
                   1622: int
1.204     nicm     1623: tty_try_colour(struct tty *tty, int colour, const char *type)
1.61      nicm     1624: {
1.204     nicm     1625:        u_char  r, g, b;
1.61      nicm     1626:        char    s[32];
                   1627:
1.204     nicm     1628:        if (colour & COLOUR_FLAG_256) {
                   1629:                /*
                   1630:                 * If the user has specified -2 to the client, setaf and setab
                   1631:                 * may not work (or they may not want to use them), so send the
                   1632:                 * usual sequence.
                   1633:                 */
                   1634:                if (tty->term_flags & TERM_256COLOURS)
                   1635:                        goto fallback_256;
1.189     nicm     1636:
1.204     nicm     1637:                /*
                   1638:                 * If the terminfo entry has 256 colours and setaf and setab
                   1639:                 * exist, assume that they work correctly.
                   1640:                 */
                   1641:                if (tty->term->flags & TERM_256COLOURS) {
                   1642:                        if (*type == '3') {
                   1643:                                if (!tty_term_has(tty->term, TTYC_SETAF))
                   1644:                                        goto fallback_256;
                   1645:                                tty_putcode1(tty, TTYC_SETAF, colour & 0xff);
                   1646:                        } else {
                   1647:                                if (!tty_term_has(tty->term, TTYC_SETAB))
                   1648:                                        goto fallback_256;
                   1649:                                tty_putcode1(tty, TTYC_SETAB, colour & 0xff);
                   1650:                        }
                   1651:                        return (0);
1.188     nicm     1652:                }
1.204     nicm     1653:                goto fallback_256;
                   1654:        }
                   1655:
                   1656:        if (colour & COLOUR_FLAG_RGB) {
                   1657:                if (!tty_term_flag(tty->term, TTYC_TC))
                   1658:                        return (-1);
                   1659:
                   1660:                colour_split_rgb(colour & 0xffffff, &r, &g, &b);
                   1661:                xsnprintf(s, sizeof s, "\033[%s;2;%hhu;%hhu;%hhum", type,
                   1662:                    r, g, b);
                   1663:                tty_puts(tty, s);
1.165     nicm     1664:                return (0);
                   1665:        }
1.61      nicm     1666:
1.165     nicm     1667:        return (-1);
1.188     nicm     1668:
1.204     nicm     1669: fallback_256:
                   1670:        xsnprintf(s, sizeof s, "\033[%s;5;%dm", type, colour & 0xff);
1.188     nicm     1671:        tty_puts(tty, s);
                   1672:        return (0);
1.176     nicm     1673: }
                   1674:
                   1675: void
                   1676: tty_default_colours(struct grid_cell *gc, const struct window_pane *wp)
                   1677: {
1.203     nicm     1678:        struct window           *w = wp->window;
                   1679:        struct options          *oo = w->options;
                   1680:        const struct grid_cell  *agc, *pgc, *wgc;
                   1681:
                   1682:        if (w->flags & WINDOW_STYLECHANGED) {
                   1683:                w->flags &= ~WINDOW_STYLECHANGED;
                   1684:                agc = options_get_style(oo, "window-active-style");
                   1685:                memcpy(&w->active_style, agc, sizeof w->active_style);
                   1686:                wgc = options_get_style(oo, "window-style");
                   1687:                memcpy(&w->style, wgc, sizeof w->style);
                   1688:        } else {
                   1689:                agc = &w->active_style;
                   1690:                wgc = &w->style;
                   1691:        }
1.176     nicm     1692:        pgc = &wp->colgc;
                   1693:
1.204     nicm     1694:        if (gc->fg == 8) {
                   1695:                if (pgc->fg != 8)
1.176     nicm     1696:                        gc->fg = pgc->fg;
1.204     nicm     1697:                else if (wp == w->active && agc->fg != 8)
1.176     nicm     1698:                        gc->fg = agc->fg;
1.204     nicm     1699:                else
1.176     nicm     1700:                        gc->fg = wgc->fg;
                   1701:        }
                   1702:
1.204     nicm     1703:        if (gc->bg == 8) {
                   1704:                if (pgc->bg != 8)
1.176     nicm     1705:                        gc->bg = pgc->bg;
1.204     nicm     1706:                else if (wp == w->active && agc->bg != 8)
1.176     nicm     1707:                        gc->bg = agc->bg;
1.204     nicm     1708:                else
1.176     nicm     1709:                        gc->bg = wgc->bg;
                   1710:        }
1.1       nicm     1711: }