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Annotation of src/usr.bin/tmux/tty.c, Revision 1.183

1.183   ! nicm        1: /* $OpenBSD: tty.c,v 1.182 2015/05/12 22:40:38 nicm Exp $ */
1.1       nicm        2:
                      3: /*
                      4:  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
                      5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
                     15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18:
                     19: #include <sys/types.h>
                     20: #include <sys/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:
1.67      nicm       34: void   tty_read_callback(struct bufferevent *, void *);
1.66      nicm       35: void   tty_error_callback(struct bufferevent *, short, void *);
                     36:
1.180     nicm       37: void   tty_set_italics(struct tty *);
1.1       nicm       38: int    tty_try_256(struct tty *, u_char, const char *);
                     39:
1.85      nicm       40: void   tty_colours(struct tty *, const struct grid_cell *);
                     41: void   tty_check_fg(struct tty *, struct grid_cell *);
                     42: void   tty_check_bg(struct tty *, struct grid_cell *);
                     43: void   tty_colours_fg(struct tty *, const struct grid_cell *);
1.73      nicm       44: void   tty_colours_bg(struct tty *, const struct grid_cell *);
1.1       nicm       45:
1.120     nicm       46: int    tty_large_region(struct tty *, const struct tty_ctx *);
1.176     nicm       47: int    tty_fake_bce(const struct tty *, const struct window_pane *);
1.24      nicm       48: void   tty_redraw_region(struct tty *, const struct tty_ctx *);
1.13      nicm       49: void   tty_emulate_repeat(
                     50:            struct tty *, enum tty_code_code, enum tty_code_code, u_int);
1.133     nicm       51: void   tty_repeat_space(struct tty *, u_int);
1.176     nicm       52: void   tty_cell(struct tty *, const struct grid_cell *,
                     53:            const struct window_pane *);
                     54: void   tty_default_colours(struct grid_cell *, const struct window_pane *);
1.1       nicm       55:
1.90      nicm       56: #define tty_use_acs(tty) \
1.131     nicm       57:        (tty_term_has((tty)->term, TTYC_ACSC) && !((tty)->flags & TTY_UTF8))
1.90      nicm       58:
1.132     nicm       59: #define tty_pane_full_width(tty, ctx) \
                     60:        ((ctx)->xoff == 0 && screen_size_x((ctx)->wp->screen) >= (tty)->sx)
                     61:
1.1       nicm       62: void
1.136     nicm       63: tty_init(struct tty *tty, struct client *c, int fd, char *term)
1.1       nicm       64: {
1.30      nicm       65:        char    *path;
                     66:
                     67:        memset(tty, 0, sizeof *tty);
1.23      nicm       68:        tty->log_fd = -1;
1.22      nicm       69:
1.9       nicm       70:        if (term == NULL || *term == '\0')
1.1       nicm       71:                tty->termname = xstrdup("unknown");
                     72:        else
                     73:                tty->termname = xstrdup(term);
1.30      nicm       74:        tty->fd = fd;
1.136     nicm       75:        tty->client = c;
1.30      nicm       76:
                     77:        if ((path = ttyname(fd)) == NULL)
                     78:                fatalx("ttyname failed");
                     79:        tty->path = xstrdup(path);
1.108     nicm       80:        tty->cstyle = 0;
1.107     nicm       81:        tty->ccolour = xstrdup("");
1.30      nicm       82:
1.1       nicm       83:        tty->flags = 0;
                     84:        tty->term_flags = 0;
1.31      nicm       85: }
                     86:
1.88      nicm       87: int
1.31      nicm       88: tty_resize(struct tty *tty)
                     89: {
                     90:        struct winsize  ws;
1.88      nicm       91:        u_int           sx, sy;
1.31      nicm       92:
                     93:        if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
1.88      nicm       94:                sx = ws.ws_col;
                     95:                if (sx == 0)
                     96:                        sx = 80;
                     97:                sy = ws.ws_row;
                     98:                if (sy == 0)
                     99:                        sy = 24;
                    100:        } else {
                    101:                sx = 80;
                    102:                sy = 24;
1.31      nicm      103:        }
1.114     nicm      104:        if (!tty_set_size(tty, sx, sy))
1.88      nicm      105:                return (0);
1.31      nicm      106:
                    107:        tty->cx = UINT_MAX;
                    108:        tty->cy = UINT_MAX;
                    109:
                    110:        tty->rupper = UINT_MAX;
                    111:        tty->rlower = UINT_MAX;
1.88      nicm      112:
                    113:        /*
                    114:         * If the terminal has been started, reset the actual scroll region and
                    115:         * cursor position, as this may not have happened.
                    116:         */
                    117:        if (tty->flags & TTY_STARTED) {
                    118:                tty_cursor(tty, 0, 0);
                    119:                tty_region(tty, 0, tty->sy - 1);
                    120:        }
                    121:
1.114     nicm      122:        return (1);
                    123: }
                    124:
                    125: int
                    126: tty_set_size(struct tty *tty, u_int sx, u_int sy) {
                    127:        if (sx == tty->sx && sy == tty->sy)
                    128:                return (0);
                    129:        tty->sx = sx;
                    130:        tty->sy = sy;
1.88      nicm      131:        return (1);
1.1       nicm      132: }
                    133:
                    134: int
1.166     nicm      135: tty_open(struct tty *tty, char **cause)
1.1       nicm      136: {
1.88      nicm      137:        char    out[64];
1.30      nicm      138:        int     fd;
1.1       nicm      139:
1.30      nicm      140:        if (debug_level > 3) {
1.88      nicm      141:                xsnprintf(out, sizeof out, "tmux-out-%ld.log", (long) getpid());
                    142:                fd = open(out, O_WRONLY|O_CREAT|O_TRUNC, 0644);
1.30      nicm      143:                if (fd != -1 && fcntl(fd, F_SETFD, FD_CLOEXEC) == -1)
                    144:                        fatal("fcntl failed");
                    145:                tty->log_fd = fd;
1.1       nicm      146:        }
                    147:
1.166     nicm      148:        tty->term = tty_term_find(tty->termname, tty->fd, cause);
1.21      nicm      149:        if (tty->term == NULL) {
                    150:                tty_close(tty);
                    151:                return (-1);
                    152:        }
                    153:        tty->flags |= TTY_OPENED;
1.1       nicm      154:
1.149     nicm      155:        tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_TIMER);
1.1       nicm      156:
1.66      nicm      157:        tty->event = bufferevent_new(
1.67      nicm      158:            tty->fd, tty_read_callback, NULL, tty_error_callback, tty);
1.1       nicm      159:
                    160:        tty_start_tty(tty);
                    161:
1.148     nicm      162:        tty_keys_build(tty);
1.1       nicm      163:
                    164:        return (0);
                    165: }
                    166:
                    167: void
1.67      nicm      168: tty_read_callback(unused struct bufferevent *bufev, void *data)
                    169: {
                    170:        struct tty      *tty = data;
                    171:
                    172:        while (tty_keys_next(tty))
                    173:                ;
                    174: }
                    175:
                    176: void
1.66      nicm      177: tty_error_callback(
                    178:     unused struct bufferevent *bufev, unused short what, unused void *data)
                    179: {
                    180: }
                    181:
                    182: void
1.127     nicm      183: tty_init_termios(int fd, struct termios *orig_tio, struct bufferevent *bufev)
1.1       nicm      184: {
1.128     nicm      185:        struct termios  tio;
1.33      nicm      186:
1.127     nicm      187:        if (fd == -1 || tcgetattr(fd, orig_tio) != 0)
1.33      nicm      188:                return;
1.1       nicm      189:
1.127     nicm      190:        setblocking(fd, 0);
1.34      nicm      191:
1.127     nicm      192:        if (bufev != NULL)
                    193:                bufferevent_enable(bufev, EV_READ|EV_WRITE);
1.66      nicm      194:
1.127     nicm      195:        memcpy(&tio, orig_tio, sizeof tio);
1.1       nicm      196:        tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
                    197:        tio.c_iflag |= IGNBRK;
                    198:        tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
                    199:        tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
1.169     jsg       200:            ECHOPRT|ECHOKE|ISIG);
1.1       nicm      201:        tio.c_cc[VMIN] = 1;
1.60      deraadt   202:        tio.c_cc[VTIME] = 0;
1.127     nicm      203:        if (tcsetattr(fd, TCSANOW, &tio) == 0)
                    204:                tcflush(fd, TCIOFLUSH);
                    205: }
                    206:
                    207: void
                    208: tty_start_tty(struct tty *tty)
                    209: {
                    210:        tty_init_termios(tty->fd, &tty->tio, tty->event);
1.1       nicm      211:
1.10      nicm      212:        tty_putcode(tty, TTYC_SMCUP);
1.1       nicm      213:
1.25      nicm      214:        tty_putcode(tty, TTYC_SGR0);
                    215:        memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
                    216:
1.76      nicm      217:        tty_putcode(tty, TTYC_RMKX);
1.90      nicm      218:        if (tty_use_acs(tty))
                    219:                tty_putcode(tty, TTYC_ENACS);
1.1       nicm      220:        tty_putcode(tty, TTYC_CLEAR);
                    221:
                    222:        tty_putcode(tty, TTYC_CNORM);
                    223:        if (tty_term_has(tty->term, TTYC_KMOUS))
1.179     nicm      224:                tty_puts(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
1.121     nicm      225:
1.162     nicm      226:        if (tty_term_has(tty->term, TTYC_XT)) {
                    227:                if (options_get_number(&global_options, "focus-events")) {
                    228:                        tty->flags |= TTY_FOCUS;
                    229:                        tty_puts(tty, "\033[?1004h");
                    230:                }
1.163     nicm      231:                tty_puts(tty, "\033[c");
1.162     nicm      232:        }
1.1       nicm      233:
                    234:        tty->cx = UINT_MAX;
                    235:        tty->cy = UINT_MAX;
                    236:
                    237:        tty->rlower = UINT_MAX;
                    238:        tty->rupper = UINT_MAX;
                    239:
                    240:        tty->mode = MODE_CURSOR;
1.20      nicm      241:
                    242:        tty->flags |= TTY_STARTED;
1.107     nicm      243:
                    244:        tty_force_cursor_colour(tty, "");
1.177     nicm      245:
                    246:        tty->mouse_drag_flag = 0;
                    247:        tty->mouse_drag_update = NULL;
                    248:        tty->mouse_drag_release = NULL;
1.145     nicm      249: }
                    250:
                    251: void
                    252: tty_set_class(struct tty *tty, u_int class)
                    253: {
                    254:        if (tty->class != 0)
                    255:                return;
                    256:        tty->class = class;
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:
1.162     nicm      300:        if (tty_term_has(tty->term, TTYC_XT)) {
                    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: {
                    315:        if (tty->log_fd != -1) {
                    316:                close(tty->log_fd);
                    317:                tty->log_fd = -1;
                    318:        }
                    319:
1.123     nicm      320:        if (event_initialized(&tty->key_timer))
                    321:                evtimer_del(&tty->key_timer);
1.20      nicm      322:        tty_stop_tty(tty);
1.1       nicm      323:
1.21      nicm      324:        if (tty->flags & TTY_OPENED) {
1.66      nicm      325:                bufferevent_free(tty->event);
                    326:
1.21      nicm      327:                tty_term_free(tty->term);
                    328:                tty_keys_free(tty);
                    329:
                    330:                tty->flags &= ~TTY_OPENED;
                    331:        }
1.1       nicm      332:
1.21      nicm      333:        if (tty->fd != -1) {
                    334:                close(tty->fd);
                    335:                tty->fd = -1;
                    336:        }
1.1       nicm      337: }
                    338:
                    339: void
1.20      nicm      340: tty_free(struct tty *tty)
1.1       nicm      341: {
1.20      nicm      342:        tty_close(tty);
1.1       nicm      343:
1.138     nicm      344:        free(tty->ccolour);
1.1       nicm      345:        if (tty->path != NULL)
1.138     nicm      346:                free(tty->path);
1.1       nicm      347:        if (tty->termname != NULL)
1.138     nicm      348:                free(tty->termname);
1.1       nicm      349: }
                    350:
                    351: void
                    352: tty_raw(struct tty *tty, const char *s)
                    353: {
1.150     nicm      354:        ssize_t n, slen;
                    355:        u_int   i;
                    356:
                    357:        slen = strlen(s);
                    358:        for (i = 0; i < 5; i++) {
                    359:                n = write(tty->fd, s, slen);
                    360:                if (n >= 0) {
                    361:                        s += n;
                    362:                        slen -= n;
                    363:                        if (slen == 0)
                    364:                                break;
                    365:                } else if (n == -1 && errno != EAGAIN)
                    366:                        break;
                    367:                usleep(100);
                    368:        }
1.1       nicm      369: }
                    370:
                    371: void
                    372: tty_putcode(struct tty *tty, enum tty_code_code code)
                    373: {
                    374:        tty_puts(tty, tty_term_string(tty->term, code));
                    375: }
                    376:
                    377: void
                    378: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
                    379: {
                    380:        if (a < 0)
                    381:                return;
                    382:        tty_puts(tty, tty_term_string1(tty->term, code, a));
                    383: }
                    384:
                    385: void
                    386: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
                    387: {
                    388:        if (a < 0 || b < 0)
                    389:                return;
                    390:        tty_puts(tty, tty_term_string2(tty->term, code, a, b));
                    391: }
                    392:
                    393: void
1.107     nicm      394: tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a)
                    395: {
                    396:        if (a != NULL)
                    397:                tty_puts(tty, tty_term_ptr1(tty->term, code, a));
                    398: }
                    399:
                    400: void
1.167     nicm      401: tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a,
                    402:     const void *b)
1.106     nicm      403: {
                    404:        if (a != NULL && b != NULL)
                    405:                tty_puts(tty, tty_term_ptr2(tty->term, code, a, b));
                    406: }
                    407:
                    408: void
1.1       nicm      409: tty_puts(struct tty *tty, const char *s)
                    410: {
                    411:        if (*s == '\0')
                    412:                return;
1.66      nicm      413:        bufferevent_write(tty->event, s, strlen(s));
1.1       nicm      414:
                    415:        if (tty->log_fd != -1)
                    416:                write(tty->log_fd, s, strlen(s));
                    417: }
                    418:
                    419: void
                    420: tty_putc(struct tty *tty, u_char ch)
                    421: {
1.90      nicm      422:        const char      *acs;
                    423:        u_int            sx;
1.1       nicm      424:
1.90      nicm      425:        if (tty->cell.attr & GRID_ATTR_CHARSET) {
                    426:                acs = tty_acs_get(tty, ch);
                    427:                if (acs != NULL)
                    428:                        bufferevent_write(tty->event, acs, strlen(acs));
                    429:                else
                    430:                        bufferevent_write(tty->event, &ch, 1);
                    431:        } else
                    432:                bufferevent_write(tty->event, &ch, 1);
1.1       nicm      433:
                    434:        if (ch >= 0x20 && ch != 0x7f) {
                    435:                sx = tty->sx;
                    436:                if (tty->term->flags & TERM_EARLYWRAP)
                    437:                        sx--;
                    438:
1.46      nicm      439:                if (tty->cx >= sx) {
                    440:                        tty->cx = 1;
                    441:                        if (tty->cy != tty->rlower)
                    442:                                tty->cy++;
1.1       nicm      443:                } else
                    444:                        tty->cx++;
                    445:        }
                    446:
                    447:        if (tty->log_fd != -1)
                    448:                write(tty->log_fd, &ch, 1);
                    449: }
                    450:
                    451: void
1.147     nicm      452: tty_putn(struct tty *tty, const void *buf, size_t len, u_int width)
1.5       nicm      453: {
1.147     nicm      454:        bufferevent_write(tty->event, buf, len);
1.71      nicm      455:        if (tty->log_fd != -1)
1.147     nicm      456:                write(tty->log_fd, buf, len);
                    457:        tty->cx += width;
1.5       nicm      458: }
                    459:
                    460: void
1.180     nicm      461: tty_set_italics(struct tty *tty)
                    462: {
                    463:        const char      *s;
                    464:
                    465:        if (tty_term_has(tty->term, TTYC_SITM)) {
                    466:                s = options_get_string(&global_options, "default-terminal");
                    467:                if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) {
                    468:                        tty_putcode(tty, TTYC_SITM);
                    469:                        return;
                    470:                }
                    471:        }
                    472:        tty_putcode(tty, TTYC_SMSO);
                    473: }
                    474:
                    475: void
1.1       nicm      476: tty_set_title(struct tty *tty, const char *title)
                    477: {
1.105     nicm      478:        if (!tty_term_has(tty->term, TTYC_TSL) ||
                    479:            !tty_term_has(tty->term, TTYC_FSL))
1.1       nicm      480:                return;
                    481:
1.105     nicm      482:        tty_putcode(tty, TTYC_TSL);
1.1       nicm      483:        tty_puts(tty, title);
1.105     nicm      484:        tty_putcode(tty, TTYC_FSL);
1.1       nicm      485: }
                    486:
                    487: void
1.107     nicm      488: tty_force_cursor_colour(struct tty *tty, const char *ccolour)
                    489: {
                    490:        if (*ccolour == '\0')
                    491:                tty_putcode(tty, TTYC_CR);
                    492:        else
1.160     nicm      493:                tty_putcode_ptr1(tty, TTYC_CS, ccolour);
1.138     nicm      494:        free(tty->ccolour);
1.107     nicm      495:        tty->ccolour = xstrdup(ccolour);
                    496: }
                    497:
                    498: void
                    499: tty_update_mode(struct tty *tty, int mode, struct screen *s)
1.1       nicm      500: {
                    501:        int     changed;
                    502:
1.181     nicm      503:        if (s != NULL && strcmp(s->ccolour, tty->ccolour))
1.107     nicm      504:                tty_force_cursor_colour(tty, s->ccolour);
                    505:
1.1       nicm      506:        if (tty->flags & TTY_NOCURSOR)
                    507:                mode &= ~MODE_CURSOR;
                    508:
                    509:        changed = mode ^ tty->mode;
1.183   ! nicm      510:        if (changed & MODE_BLINKING) {
        !           511:                if (tty_term_has(tty->term, TTYC_CVVIS))
        !           512:                        tty_putcode(tty, TTYC_CVVIS);
        !           513:                else
        !           514:                        tty_putcode(tty, TTYC_CNORM);
        !           515:                changed |= MODE_CURSOR;
        !           516:        }
        !           517:        if (changed & MODE_CURSOR) {
        !           518:                if (mode & MODE_CURSOR)
        !           519:                        tty_putcode(tty, TTYC_CNORM);
        !           520:                else
1.1       nicm      521:                        tty_putcode(tty, TTYC_CIVIS);
1.108     nicm      522:        }
1.181     nicm      523:        if (s != NULL && tty->cstyle != s->cstyle) {
1.160     nicm      524:                if (tty_term_has(tty->term, TTYC_SS)) {
1.108     nicm      525:                        if (s->cstyle == 0 &&
1.160     nicm      526:                            tty_term_has(tty->term, TTYC_SE))
                    527:                                tty_putcode(tty, TTYC_SE);
1.108     nicm      528:                        else
1.160     nicm      529:                                tty_putcode1(tty, TTYC_SS, s->cstyle);
1.108     nicm      530:                }
                    531:                tty->cstyle = s->cstyle;
1.1       nicm      532:        }
1.154     nicm      533:        if (changed & (ALL_MOUSE_MODES|MODE_MOUSE_UTF8)) {
1.94      nicm      534:                if (mode & ALL_MOUSE_MODES) {
1.153     nicm      535:                        /*
                    536:                         * Enable the UTF-8 (1005) extension if configured to.
                    537:                         * Enable the SGR (1006) extension unconditionally, as
                    538:                         * this is safe from misinterpretation. Do it in this
                    539:                         * order, because in some terminals it's the last one
                    540:                         * that takes effect and SGR is the preferred one.
                    541:                         */
1.95      nicm      542:                        if (mode & MODE_MOUSE_UTF8)
                    543:                                tty_puts(tty, "\033[?1005h");
1.154     nicm      544:                        else
                    545:                                tty_puts(tty, "\033[?1005l");
1.153     nicm      546:                        tty_puts(tty, "\033[?1006h");
                    547:
1.170     nicm      548:                        if (mode & MODE_MOUSE_BUTTON)
1.94      nicm      549:                                tty_puts(tty, "\033[?1002h");
1.98      nicm      550:                        else if (mode & MODE_MOUSE_STANDARD)
                    551:                                tty_puts(tty, "\033[?1000h");
1.86      nicm      552:                } else {
1.170     nicm      553:                        if (tty->mode & MODE_MOUSE_BUTTON)
1.94      nicm      554:                                tty_puts(tty, "\033[?1002l");
1.98      nicm      555:                        else if (tty->mode & MODE_MOUSE_STANDARD)
                    556:                                tty_puts(tty, "\033[?1000l");
1.153     nicm      557:
                    558:                        tty_puts(tty, "\033[?1006l");
1.95      nicm      559:                        if (tty->mode & MODE_MOUSE_UTF8)
                    560:                                tty_puts(tty, "\033[?1005l");
1.86      nicm      561:                }
1.76      nicm      562:        }
                    563:        if (changed & MODE_KKEYPAD) {
                    564:                if (mode & MODE_KKEYPAD)
                    565:                        tty_putcode(tty, TTYC_SMKX);
                    566:                else
                    567:                        tty_putcode(tty, TTYC_RMKX);
1.115     nicm      568:        }
                    569:        if (changed & MODE_BRACKETPASTE) {
                    570:                if (mode & MODE_BRACKETPASTE)
                    571:                        tty_puts(tty, "\033[?2004h");
                    572:                else
                    573:                        tty_puts(tty, "\033[?2004l");
1.1       nicm      574:        }
                    575:        tty->mode = mode;
                    576: }
                    577:
                    578: void
1.168     nicm      579: tty_emulate_repeat(struct tty *tty, enum tty_code_code code,
                    580:     enum tty_code_code code1, u_int n)
1.1       nicm      581: {
                    582:        if (tty_term_has(tty->term, code))
                    583:                tty_putcode1(tty, code, n);
                    584:        else {
                    585:                while (n-- > 0)
                    586:                        tty_putcode(tty, code1);
                    587:        }
                    588: }
                    589:
1.133     nicm      590: void
                    591: tty_repeat_space(struct tty *tty, u_int n)
                    592: {
                    593:        while (n-- > 0)
                    594:                tty_putc(tty, ' ');
                    595: }
                    596:
1.1       nicm      597: /*
1.119     nicm      598:  * Is the region large enough to be worth redrawing once later rather than
                    599:  * probably several times now? Currently yes if it is more than 50% of the
                    600:  * pane.
                    601:  */
                    602: int
                    603: tty_large_region(unused struct tty *tty, const struct tty_ctx *ctx)
                    604: {
                    605:        struct window_pane      *wp = ctx->wp;
                    606:
                    607:        return (ctx->orlower - ctx->orupper >= screen_size_y(wp->screen) / 2);
                    608: }
                    609:
                    610: /*
1.176     nicm      611:  * Return if BCE is needed but the terminal doesn't have it - it'll need to be
                    612:  * emulated.
                    613:  */
                    614: int
                    615: tty_fake_bce(const struct tty *tty, const struct window_pane *wp)
                    616: {
                    617:        struct grid_cell        gc;
                    618:
                    619:        memcpy(&gc, &grid_default_cell, sizeof gc);
                    620:        tty_default_colours(&gc, wp);
                    621:
                    622:        if (gc.bg == 8 && !(gc.flags & GRID_FLAG_BG256))
                    623:                return (0);
                    624:        return (!tty_term_flag(tty->term, TTYC_BCE));
                    625: }
                    626:
                    627: /*
1.1       nicm      628:  * Redraw scroll region using data from screen (already updated). Used when
                    629:  * CSR not supported, or window is a pane that doesn't take up the full
                    630:  * width of the terminal.
                    631:  */
                    632: void
1.24      nicm      633: tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      634: {
1.14      nicm      635:        struct window_pane      *wp = ctx->wp;
                    636:        struct screen           *s = wp->screen;
                    637:        u_int                    i;
1.1       nicm      638:
                    639:        /*
1.119     nicm      640:         * If region is large, schedule a window redraw. In most cases this is
                    641:         * likely to be followed by some more scrolling.
1.1       nicm      642:         */
1.119     nicm      643:        if (tty_large_region(tty, ctx)) {
1.1       nicm      644:                wp->flags |= PANE_REDRAW;
                    645:                return;
                    646:        }
                    647:
1.14      nicm      648:        if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
                    649:                for (i = ctx->ocy; i < screen_size_y(s); i++)
1.176     nicm      650:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      651:        } else {
1.14      nicm      652:                for (i = ctx->orupper; i <= ctx->orlower; i++)
1.176     nicm      653:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      654:        }
                    655: }
                    656:
                    657: void
1.176     nicm      658: tty_draw_pane(struct tty *tty, const struct window_pane *wp, u_int py, u_int ox,
                    659:     u_int oy)
                    660: {
                    661:        tty_draw_line(tty, wp, wp->screen, py, ox, oy);
                    662: }
                    663:
                    664: void
                    665: tty_draw_line(struct tty *tty, const struct window_pane *wp,
                    666:     struct screen *s, u_int py, u_int ox, u_int oy)
1.1       nicm      667: {
                    668:        const struct grid_cell  *gc;
1.46      nicm      669:        struct grid_line        *gl;
1.16      nicm      670:        struct grid_cell         tmpgc;
1.147     nicm      671:        struct utf8_data         ud;
1.1       nicm      672:        u_int                    i, sx;
1.181     nicm      673:        int                      flags;
1.1       nicm      674:
1.181     nicm      675:        flags = tty->flags & TTY_NOCURSOR;
                    676:        tty->flags |= TTY_NOCURSOR;
                    677:        tty_update_mode(tty, tty->mode, s);
1.35      nicm      678:
1.1       nicm      679:        sx = screen_size_x(s);
1.19      nicm      680:        if (sx > s->grid->linedata[s->grid->hsize + py].cellsize)
                    681:                sx = s->grid->linedata[s->grid->hsize + py].cellsize;
1.1       nicm      682:        if (sx > tty->sx)
                    683:                sx = tty->sx;
                    684:
1.46      nicm      685:        /*
1.174     nicm      686:         * Don't move the cursor to the start position if it will wrap there
1.50      nicm      687:         * itself.
1.46      nicm      688:         */
                    689:        gl = NULL;
                    690:        if (py != 0)
                    691:                gl = &s->grid->linedata[s->grid->hsize + py - 1];
1.83      nicm      692:        if (oy + py == 0 || gl == NULL || !(gl->flags & GRID_LINE_WRAPPED) ||
1.47      nicm      693:            tty->cx < tty->sx || ox != 0 ||
                    694:            (oy + py != tty->cy + 1 && tty->cy != s->rlower + oy))
1.46      nicm      695:                tty_cursor(tty, ox, oy + py);
                    696:
1.1       nicm      697:        for (i = 0; i < sx; i++) {
                    698:                gc = grid_view_peek_cell(s->grid, i, py);
                    699:                if (screen_check_selection(s, i, py)) {
1.16      nicm      700:                        memcpy(&tmpgc, &s->sel.cell, sizeof tmpgc);
1.147     nicm      701:                        grid_cell_get(gc, &ud);
                    702:                        grid_cell_set(&tmpgc, &ud);
1.77      nicm      703:                        tmpgc.flags = gc->flags &
1.38      nicm      704:                            ~(GRID_FLAG_FG256|GRID_FLAG_BG256);
                    705:                        tmpgc.flags |= s->sel.cell.flags &
                    706:                            (GRID_FLAG_FG256|GRID_FLAG_BG256);
1.176     nicm      707:                        tty_cell(tty, &tmpgc, wp);
1.1       nicm      708:                } else
1.176     nicm      709:                        tty_cell(tty, gc, wp);
1.1       nicm      710:        }
                    711:
1.181     nicm      712:        if (sx < tty->sx) {
                    713:                tty_attributes(tty, &grid_default_cell, wp);
                    714:
                    715:                tty_cursor(tty, ox + sx, oy + py);
                    716:                if (sx != screen_size_x(s) &&
                    717:                    ox + screen_size_x(s) >= tty->sx &&
                    718:                    tty_term_has(tty->term, TTYC_EL) &&
                    719:                    !tty_fake_bce(tty, wp))
                    720:                        tty_putcode(tty, TTYC_EL);
                    721:                else
                    722:                        tty_repeat_space(tty, screen_size_x(s) - sx);
1.35      nicm      723:        }
1.1       nicm      724:
1.181     nicm      725:        tty->flags = (tty->flags & ~TTY_NOCURSOR) | flags;
1.107     nicm      726:        tty_update_mode(tty, tty->mode, s);
1.15      nicm      727: }
                    728:
1.182     nicm      729: int
                    730: tty_client_ready(struct client *c, struct window_pane *wp)
                    731: {
                    732:        if (c->session == NULL || c->tty.term == NULL)
                    733:                return (0);
                    734:        if (c->flags & CLIENT_SUSPENDED)
                    735:                return (0);
                    736:        if (c->tty.flags & TTY_FREEZE)
                    737:                return (0);
                    738:        if (c->session->curw->window != wp->window)
                    739:                return (0);
                    740:        return (1);
                    741: }
                    742:
1.15      nicm      743: void
1.182     nicm      744: tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *),
                    745:     struct tty_ctx *ctx)
1.15      nicm      746: {
                    747:        struct window_pane      *wp = ctx->wp;
                    748:        struct client           *c;
                    749:
1.75      nicm      750:        /* wp can be NULL if updating the screen but not the terminal. */
1.15      nicm      751:        if (wp == NULL)
                    752:                return;
                    753:
                    754:        if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
                    755:                return;
1.129     nicm      756:        if (!window_pane_visible(wp) || wp->flags & PANE_DROP)
1.15      nicm      757:                return;
                    758:
1.178     nicm      759:        TAILQ_FOREACH(c, &clients, entry) {
1.182     nicm      760:                if (!tty_client_ready(c, wp))
1.15      nicm      761:                        continue;
                    762:
1.139     nicm      763:                ctx->xoff = wp->xoff;
                    764:                ctx->yoff = wp->yoff;
                    765:                if (status_at_line(c) == 0)
                    766:                        ctx->yoff++;
1.113     nicm      767:
1.139     nicm      768:                cmdfn(&c->tty, ctx);
1.1       nicm      769:        }
                    770: }
                    771:
                    772: void
1.24      nicm      773: tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      774: {
1.77      nicm      775:        struct window_pane      *wp = ctx->wp;
1.1       nicm      776:
1.135     nicm      777:        if (!tty_pane_full_width(tty, ctx)) {
1.176     nicm      778:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      779:                return;
                    780:        }
                    781:
1.176     nicm      782:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      783:
1.77      nicm      784:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      785:
1.176     nicm      786:        if (!tty_fake_bce(tty, wp) && (tty_term_has(tty->term, TTYC_ICH) ||
                    787:            tty_term_has(tty->term, TTYC_ICH1)))
1.12      nicm      788:                tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
1.134     nicm      789:        else
1.176     nicm      790:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      791: }
                    792:
                    793: void
1.24      nicm      794: tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      795: {
1.77      nicm      796:        struct window_pane      *wp = ctx->wp;
1.1       nicm      797:
1.176     nicm      798:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, wp) ||
1.26      nicm      799:            (!tty_term_has(tty->term, TTYC_DCH) &&
                    800:            !tty_term_has(tty->term, TTYC_DCH1))) {
1.176     nicm      801:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      802:                return;
                    803:        }
                    804:
1.176     nicm      805:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      806:
1.77      nicm      807:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      808:
1.26      nicm      809:        if (tty_term_has(tty->term, TTYC_DCH) ||
                    810:            tty_term_has(tty->term, TTYC_DCH1))
                    811:                tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
1.146     nicm      812: }
                    813:
                    814: void
                    815: tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx)
                    816: {
                    817:        u_int   i;
                    818:
1.176     nicm      819:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.146     nicm      820:
                    821:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    822:
1.176     nicm      823:        if (tty_term_has(tty->term, TTYC_ECH) && !tty_fake_bce(tty, ctx->wp))
1.146     nicm      824:                tty_putcode1(tty, TTYC_ECH, ctx->num);
                    825:        else {
                    826:                for (i = 0; i < ctx->num; i++)
                    827:                        tty_putc(tty, ' ');
                    828:        }
1.1       nicm      829: }
                    830:
                    831: void
1.24      nicm      832: tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      833: {
1.176     nicm      834:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, ctx->wp) ||
1.77      nicm      835:            !tty_term_has(tty->term, TTYC_CSR) ||
1.72      nicm      836:            !tty_term_has(tty->term, TTYC_IL1)) {
1.14      nicm      837:                tty_redraw_region(tty, ctx);
1.1       nicm      838:                return;
                    839:        }
                    840:
1.176     nicm      841:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.1       nicm      842:
1.77      nicm      843:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                    844:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      845:
1.12      nicm      846:        tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
1.1       nicm      847: }
                    848:
                    849: void
1.24      nicm      850: tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      851: {
1.176     nicm      852:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, ctx->wp) ||
1.72      nicm      853:            !tty_term_has(tty->term, TTYC_CSR) ||
                    854:            !tty_term_has(tty->term, TTYC_DL1)) {
1.14      nicm      855:                tty_redraw_region(tty, ctx);
1.1       nicm      856:                return;
                    857:        }
                    858:
1.176     nicm      859:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.1       nicm      860:
1.77      nicm      861:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                    862:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      863:
1.12      nicm      864:        tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
1.1       nicm      865: }
                    866:
                    867: void
1.24      nicm      868: tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      869: {
1.77      nicm      870:        struct window_pane      *wp = ctx->wp;
1.12      nicm      871:        struct screen           *s = wp->screen;
1.1       nicm      872:
1.176     nicm      873:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      874:
1.77      nicm      875:        tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.41      nicm      876:
1.176     nicm      877:        if (tty_pane_full_width(tty, ctx) && !tty_fake_bce(tty, wp) &&
                    878:            tty_term_has(tty->term, TTYC_EL))
1.1       nicm      879:                tty_putcode(tty, TTYC_EL);
1.133     nicm      880:        else
                    881:                tty_repeat_space(tty, screen_size_x(s));
1.1       nicm      882: }
                    883:
                    884: void
1.24      nicm      885: tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      886: {
1.77      nicm      887:        struct window_pane      *wp = ctx->wp;
1.12      nicm      888:        struct screen           *s = wp->screen;
1.1       nicm      889:
1.176     nicm      890:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      891:
1.41      nicm      892:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    893:
1.176     nicm      894:        if (tty_pane_full_width(tty, ctx) &&
                    895:            tty_term_has(tty->term, TTYC_EL) && !tty_fake_bce(tty, wp))
1.1       nicm      896:                tty_putcode(tty, TTYC_EL);
1.133     nicm      897:        else
                    898:                tty_repeat_space(tty, screen_size_x(s) - ctx->ocx);
1.1       nicm      899: }
                    900:
                    901: void
1.24      nicm      902: tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      903: {
1.176     nicm      904:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.1       nicm      905:
1.176     nicm      906:        if (ctx->xoff == 0 && tty_term_has(tty->term, TTYC_EL1) &&
                    907:            !tty_fake_bce(tty, ctx->wp)) {
1.41      nicm      908:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      909:                tty_putcode(tty, TTYC_EL1);
                    910:        } else {
1.41      nicm      911:                tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.133     nicm      912:                tty_repeat_space(tty, ctx->ocx + 1);
1.1       nicm      913:        }
                    914: }
                    915:
                    916: void
1.24      nicm      917: tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      918: {
1.56      nicm      919:        if (ctx->ocy != ctx->orupper)
                    920:                return;
                    921:
1.176     nicm      922:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, ctx->wp) ||
1.70      nicm      923:            !tty_term_has(tty->term, TTYC_CSR) ||
                    924:            !tty_term_has(tty->term, TTYC_RI)) {
1.14      nicm      925:                tty_redraw_region(tty, ctx);
1.1       nicm      926:                return;
                    927:        }
                    928:
1.176     nicm      929:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.77      nicm      930:
1.56      nicm      931:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                    932:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
1.77      nicm      933:
1.56      nicm      934:        tty_putcode(tty, TTYC_RI);
1.1       nicm      935: }
                    936:
                    937: void
1.24      nicm      938: tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      939: {
1.77      nicm      940:        struct window_pane      *wp = ctx->wp;
1.1       nicm      941:
1.56      nicm      942:        if (ctx->ocy != ctx->orlower)
                    943:                return;
                    944:
1.176     nicm      945:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, wp) ||
1.1       nicm      946:            !tty_term_has(tty->term, TTYC_CSR)) {
1.128     nicm      947:                if (tty_large_region(tty, ctx))
                    948:                        wp->flags |= PANE_REDRAW;
1.140     nicm      949:                else
1.128     nicm      950:                        tty_redraw_region(tty, ctx);
1.1       nicm      951:                return;
                    952:        }
1.52      nicm      953:
                    954:        /*
                    955:         * If this line wrapped naturally (ctx->num is nonzero), don't do
                    956:         * anything - the cursor can just be moved to the last cell and wrap
                    957:         * naturally.
                    958:         */
                    959:        if (ctx->num && !(tty->term->flags & TERM_EARLYWRAP))
                    960:                return;
1.1       nicm      961:
1.176     nicm      962:        tty_attributes(tty, &grid_default_cell, wp);
1.77      nicm      963:
1.56      nicm      964:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                    965:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.77      nicm      966:
1.56      nicm      967:        tty_putc(tty, '\n');
1.1       nicm      968: }
                    969:
                    970: void
1.24      nicm      971: tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      972: {
1.77      nicm      973:        struct window_pane      *wp = ctx->wp;
1.12      nicm      974:        struct screen           *s = wp->screen;
                    975:        u_int                    i, j;
1.1       nicm      976:
1.176     nicm      977:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      978:
1.39      nicm      979:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41      nicm      980:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.39      nicm      981:
1.176     nicm      982:        if (tty_pane_full_width(tty, ctx) &&
                    983:            tty_term_has(tty->term, TTYC_EL) && !tty_fake_bce(tty, wp)) {
1.1       nicm      984:                tty_putcode(tty, TTYC_EL);
1.14      nicm      985:                if (ctx->ocy != screen_size_y(s) - 1) {
1.41      nicm      986:                        tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
1.14      nicm      987:                        for (i = ctx->ocy + 1; i < screen_size_y(s); i++) {
1.1       nicm      988:                                tty_putcode(tty, TTYC_EL);
                    989:                                if (i == screen_size_y(s) - 1)
                    990:                                        continue;
                    991:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                    992:                                tty->cy++;
                    993:                        }
                    994:                }
                    995:        } else {
1.133     nicm      996:                tty_repeat_space(tty, screen_size_x(s) - ctx->ocx);
1.68      nicm      997:                for (j = ctx->ocy + 1; j < screen_size_y(s); j++) {
1.41      nicm      998:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm      999:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm     1000:                }
                   1001:        }
                   1002: }
                   1003:
                   1004: void
1.24      nicm     1005: tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1006: {
1.77      nicm     1007:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1008:        struct screen           *s = wp->screen;
                   1009:        u_int                    i, j;
1.1       nicm     1010:
1.176     nicm     1011:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm     1012:
1.39      nicm     1013:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41      nicm     1014:        tty_cursor_pane(tty, ctx, 0, 0);
1.39      nicm     1015:
1.176     nicm     1016:        if (tty_pane_full_width(tty, ctx) &&
                   1017:            tty_term_has(tty->term, TTYC_EL) && !tty_fake_bce(tty, wp)) {
1.14      nicm     1018:                for (i = 0; i < ctx->ocy; i++) {
1.1       nicm     1019:                        tty_putcode(tty, TTYC_EL);
                   1020:                        tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1021:                        tty->cy++;
                   1022:                }
                   1023:        } else {
1.14      nicm     1024:                for (j = 0; j < ctx->ocy; j++) {
1.41      nicm     1025:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm     1026:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm     1027:                }
                   1028:        }
1.133     nicm     1029:        tty_repeat_space(tty, ctx->ocx + 1);
1.1       nicm     1030: }
                   1031:
                   1032: void
1.24      nicm     1033: tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1034: {
1.77      nicm     1035:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1036:        struct screen           *s = wp->screen;
                   1037:        u_int                    i, j;
1.1       nicm     1038:
1.176     nicm     1039:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm     1040:
1.39      nicm     1041:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41      nicm     1042:        tty_cursor_pane(tty, ctx, 0, 0);
1.39      nicm     1043:
1.176     nicm     1044:        if (tty_pane_full_width(tty, ctx) &&
                   1045:            tty_term_has(tty->term, TTYC_EL) && !tty_fake_bce(tty, wp)) {
1.1       nicm     1046:                for (i = 0; i < screen_size_y(s); i++) {
                   1047:                        tty_putcode(tty, TTYC_EL);
                   1048:                        if (i != screen_size_y(s) - 1) {
                   1049:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1050:                                tty->cy++;
                   1051:                        }
                   1052:                }
                   1053:        } else {
                   1054:                for (j = 0; j < screen_size_y(s); j++) {
1.41      nicm     1055:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm     1056:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm     1057:                }
1.4       nicm     1058:        }
                   1059: }
                   1060:
                   1061: void
1.24      nicm     1062: tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
1.4       nicm     1063: {
1.12      nicm     1064:        struct window_pane      *wp = ctx->wp;
                   1065:        struct screen           *s = wp->screen;
                   1066:        u_int                    i, j;
1.4       nicm     1067:
1.176     nicm     1068:        tty_attributes(tty, &grid_default_cell, wp);
1.4       nicm     1069:
1.39      nicm     1070:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.4       nicm     1071:
                   1072:        for (j = 0; j < screen_size_y(s); j++) {
1.41      nicm     1073:                tty_cursor_pane(tty, ctx, 0, j);
1.4       nicm     1074:                for (i = 0; i < screen_size_x(s); i++)
                   1075:                        tty_putc(tty, 'E');
1.1       nicm     1076:        }
                   1077: }
                   1078:
                   1079: void
1.24      nicm     1080: tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1081: {
1.46      nicm     1082:        struct window_pane      *wp = ctx->wp;
                   1083:        struct screen           *s = wp->screen;
1.58      nicm     1084:        u_int                    cx;
1.102     nicm     1085:        u_int                    width;
1.46      nicm     1086:
                   1087:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                   1088:
1.57      nicm     1089:        /* Is the cursor in the very last position? */
1.147     nicm     1090:        width = grid_cell_width(ctx->cell);
1.102     nicm     1091:        if (ctx->ocx > wp->sx - width) {
1.113     nicm     1092:                if (ctx->xoff != 0 || wp->sx != tty->sx) {
1.57      nicm     1093:                        /*
                   1094:                         * The pane doesn't fill the entire line, the linefeed
                   1095:                         * will already have happened, so just move the cursor.
                   1096:                         */
1.125     nicm     1097:                        if (ctx->ocy != wp->yoff + wp->screen->rlower)
1.122     nicm     1098:                                tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
                   1099:                        else
                   1100:                                tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.57      nicm     1101:                } else if (tty->cx < tty->sx) {
                   1102:                        /*
                   1103:                         * The cursor isn't in the last position already, so
1.102     nicm     1104:                         * move as far left as possible and redraw the last
1.57      nicm     1105:                         * cell to move into the last position.
                   1106:                         */
1.147     nicm     1107:                        cx = screen_size_x(s) - grid_cell_width(&ctx->last_cell);
1.50      nicm     1108:                        tty_cursor_pane(tty, ctx, cx, ctx->ocy);
1.176     nicm     1109:                        tty_cell(tty, &ctx->last_cell, wp);
1.50      nicm     1110:                }
                   1111:        } else
1.46      nicm     1112:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm     1113:
1.176     nicm     1114:        tty_cell(tty, ctx->cell, wp);
1.1       nicm     1115: }
                   1116:
                   1117: void
1.24      nicm     1118: tty_cmd_utf8character(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1119: {
1.53      nicm     1120:        struct window_pane      *wp = ctx->wp;
1.1       nicm     1121:
1.53      nicm     1122:        /*
                   1123:         * Cannot rely on not being a partial character, so just redraw the
                   1124:         * whole line.
                   1125:         */
1.176     nicm     1126:        tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.106     nicm     1127: }
                   1128:
                   1129: void
                   1130: tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx)
                   1131: {
                   1132:        char    *buf;
                   1133:        size_t   off;
                   1134:
                   1135:        if (!tty_term_has(tty->term, TTYC_MS))
                   1136:                return;
                   1137:
                   1138:        off = 4 * ((ctx->num + 2) / 3) + 1; /* storage for base64 */
                   1139:        buf = xmalloc(off);
                   1140:
                   1141:        b64_ntop(ctx->ptr, ctx->num, buf, off);
                   1142:        tty_putcode_ptr2(tty, TTYC_MS, "", buf);
                   1143:
1.138     nicm     1144:        free(buf);
1.100     nicm     1145: }
                   1146:
                   1147: void
                   1148: tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
                   1149: {
                   1150:        u_int    i;
                   1151:        u_char  *str = ctx->ptr;
                   1152:
                   1153:        for (i = 0; i < ctx->num; i++)
                   1154:                tty_putc(tty, str[i]);
1.141     nicm     1155:
                   1156:        tty->cx = tty->cy = UINT_MAX;
                   1157:        tty->rupper = tty->rlower = UINT_MAX;
                   1158:
1.176     nicm     1159:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.141     nicm     1160:        tty_cursor(tty, 0, 0);
1.1       nicm     1161: }
                   1162:
                   1163: void
1.176     nicm     1164: tty_cell(struct tty *tty, const struct grid_cell *gc,
                   1165:     const struct window_pane *wp)
1.1       nicm     1166: {
1.147     nicm     1167:        struct utf8_data        ud;
                   1168:        u_int                   i;
1.1       nicm     1169:
                   1170:        /* Skip last character if terminal is stupid. */
                   1171:        if (tty->term->flags & TERM_EARLYWRAP &&
                   1172:            tty->cy == tty->sy - 1 && tty->cx == tty->sx - 1)
                   1173:                return;
                   1174:
                   1175:        /* If this is a padding character, do nothing. */
                   1176:        if (gc->flags & GRID_FLAG_PADDING)
                   1177:                return;
                   1178:
                   1179:        /* Set the attributes. */
1.176     nicm     1180:        tty_attributes(tty, gc, wp);
1.1       nicm     1181:
1.147     nicm     1182:        /* Get the cell and if ASCII write with putc to do ACS translation. */
                   1183:        grid_cell_get(gc, &ud);
                   1184:        if (ud.size == 1) {
                   1185:                if (*ud.data < 0x20 || *ud.data == 0x7f)
1.1       nicm     1186:                        return;
1.147     nicm     1187:                tty_putc(tty, *ud.data);
1.1       nicm     1188:                return;
                   1189:        }
                   1190:
1.147     nicm     1191:        /* If not UTF-8, write _. */
1.1       nicm     1192:        if (!(tty->flags & TTY_UTF8)) {
1.147     nicm     1193:                for (i = 0; i < ud.width; i++)
1.1       nicm     1194:                        tty_putc(tty, '_');
                   1195:                return;
                   1196:        }
                   1197:
1.147     nicm     1198:        /* Write the data. */
                   1199:        tty_putn(tty, ud.data, ud.size, ud.width);
1.1       nicm     1200: }
                   1201:
                   1202: void
                   1203: tty_reset(struct tty *tty)
                   1204: {
                   1205:        struct grid_cell        *gc = &tty->cell;
                   1206:
                   1207:        if (memcmp(gc, &grid_default_cell, sizeof *gc) == 0)
                   1208:                return;
                   1209:
1.90      nicm     1210:        if ((gc->attr & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1.1       nicm     1211:                tty_putcode(tty, TTYC_RMACS);
                   1212:        tty_putcode(tty, TTYC_SGR0);
                   1213:        memcpy(gc, &grid_default_cell, sizeof *gc);
                   1214: }
                   1215:
1.40      nicm     1216: /* Set region inside pane. */
1.1       nicm     1217: void
1.39      nicm     1218: tty_region_pane(
                   1219:     struct tty *tty, const struct tty_ctx *ctx, u_int rupper, u_int rlower)
1.1       nicm     1220: {
1.113     nicm     1221:        tty_region(tty, ctx->yoff + rupper, ctx->yoff + rlower);
1.39      nicm     1222: }
                   1223:
1.40      nicm     1224: /* Set region at absolute position. */
1.39      nicm     1225: void
1.40      nicm     1226: tty_region(struct tty *tty, u_int rupper, u_int rlower)
1.39      nicm     1227: {
                   1228:        if (tty->rlower == rlower && tty->rupper == rupper)
                   1229:                return;
1.1       nicm     1230:        if (!tty_term_has(tty->term, TTYC_CSR))
                   1231:                return;
1.39      nicm     1232:
                   1233:        tty->rupper = rupper;
                   1234:        tty->rlower = rlower;
1.55      nicm     1235:
                   1236:        /*
                   1237:         * Some terminals (such as PuTTY) do not correctly reset the cursor to
                   1238:         * 0,0 if it is beyond the last column (they do not reset their wrap
                   1239:         * flag so further output causes a line feed). As a workaround, do an
                   1240:         * explicit move to 0 first.
                   1241:         */
                   1242:        if (tty->cx >= tty->sx)
                   1243:                tty_cursor(tty, 0, tty->cy);
1.42      nicm     1244:
1.39      nicm     1245:        tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1.78      nicm     1246:        tty_cursor(tty, 0, 0);
1.1       nicm     1247: }
                   1248:
1.42      nicm     1249: /* Move cursor inside pane. */
1.1       nicm     1250: void
1.41      nicm     1251: tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
                   1252: {
1.113     nicm     1253:        tty_cursor(tty, ctx->xoff + cx, ctx->yoff + cy);
1.41      nicm     1254: }
                   1255:
1.42      nicm     1256: /* Move cursor to absolute position. */
1.41      nicm     1257: void
                   1258: tty_cursor(struct tty *tty, u_int cx, u_int cy)
1.1       nicm     1259: {
1.42      nicm     1260:        struct tty_term *term = tty->term;
                   1261:        u_int            thisx, thisy;
                   1262:        int              change;
1.77      nicm     1263:
1.42      nicm     1264:        if (cx > tty->sx - 1)
                   1265:                cx = tty->sx - 1;
                   1266:
                   1267:        thisx = tty->cx;
                   1268:        thisy = tty->cy;
                   1269:
                   1270:        /* No change. */
                   1271:        if (cx == thisx && cy == thisy)
                   1272:                return;
                   1273:
1.43      nicm     1274:        /* Very end of the line, just use absolute movement. */
                   1275:        if (thisx > tty->sx - 1)
                   1276:                goto absolute;
                   1277:
1.42      nicm     1278:        /* Move to home position (0, 0). */
                   1279:        if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
                   1280:                tty_putcode(tty, TTYC_HOME);
                   1281:                goto out;
                   1282:        }
                   1283:
                   1284:        /* Zero on the next line. */
1.48      nicm     1285:        if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower) {
1.1       nicm     1286:                tty_putc(tty, '\r');
1.42      nicm     1287:                tty_putc(tty, '\n');
                   1288:                goto out;
                   1289:        }
                   1290:
1.45      nicm     1291:        /* Moving column or row. */
1.42      nicm     1292:        if (cy == thisy) {
1.45      nicm     1293:                /*
                   1294:                 * Moving column only, row staying the same.
                   1295:                 */
                   1296:
1.42      nicm     1297:                /* To left edge. */
                   1298:                if (cx == 0)    {
                   1299:                        tty_putc(tty, '\r');
                   1300:                        goto out;
                   1301:                }
                   1302:
                   1303:                /* One to the left. */
                   1304:                if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) {
                   1305:                        tty_putcode(tty, TTYC_CUB1);
                   1306:                        goto out;
                   1307:                }
                   1308:
                   1309:                /* One to the right. */
                   1310:                if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) {
                   1311:                        tty_putcode(tty, TTYC_CUF1);
                   1312:                        goto out;
                   1313:                }
                   1314:
                   1315:                /* Calculate difference. */
                   1316:                change = thisx - cx;    /* +ve left, -ve right */
                   1317:
                   1318:                /*
                   1319:                 * Use HPA if change is larger than absolute, otherwise move
                   1320:                 * the cursor with CUB/CUF.
                   1321:                 */
1.87      nicm     1322:                if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) {
1.42      nicm     1323:                        tty_putcode1(tty, TTYC_HPA, cx);
                   1324:                        goto out;
                   1325:                } else if (change > 0 && tty_term_has(term, TTYC_CUB)) {
                   1326:                        tty_putcode1(tty, TTYC_CUB, change);
                   1327:                        goto out;
                   1328:                } else if (change < 0 && tty_term_has(term, TTYC_CUF)) {
                   1329:                        tty_putcode1(tty, TTYC_CUF, -change);
                   1330:                        goto out;
                   1331:                }
1.45      nicm     1332:        } else if (cx == thisx) {
                   1333:                /*
                   1334:                 * Moving row only, column staying the same.
                   1335:                 */
1.42      nicm     1336:
                   1337:                /* One above. */
1.77      nicm     1338:                if (thisy != tty->rupper &&
1.42      nicm     1339:                    cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) {
                   1340:                        tty_putcode(tty, TTYC_CUU1);
                   1341:                        goto out;
                   1342:                }
                   1343:
                   1344:                /* One below. */
1.49      nicm     1345:                if (thisy != tty->rlower &&
1.42      nicm     1346:                    cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) {
                   1347:                        tty_putcode(tty, TTYC_CUD1);
                   1348:                        goto out;
                   1349:                }
                   1350:
                   1351:                /* Calculate difference. */
                   1352:                change = thisy - cy;    /* +ve up, -ve down */
                   1353:
                   1354:                /*
1.77      nicm     1355:                 * Try to use VPA if change is larger than absolute or if this
                   1356:                 * change would cross the scroll region, otherwise use CUU/CUD.
1.42      nicm     1357:                 */
1.87      nicm     1358:                if ((u_int) abs(change) > cy ||
1.42      nicm     1359:                    (change < 0 && cy - change > tty->rlower) ||
1.44      nicm     1360:                    (change > 0 && cy - change < tty->rupper)) {
                   1361:                            if (tty_term_has(term, TTYC_VPA)) {
                   1362:                                    tty_putcode1(tty, TTYC_VPA, cy);
                   1363:                                    goto out;
                   1364:                            }
1.42      nicm     1365:                } else if (change > 0 && tty_term_has(term, TTYC_CUU)) {
                   1366:                        tty_putcode1(tty, TTYC_CUU, change);
                   1367:                        goto out;
                   1368:                } else if (change < 0 && tty_term_has(term, TTYC_CUD)) {
                   1369:                        tty_putcode1(tty, TTYC_CUD, -change);
                   1370:                        goto out;
                   1371:                }
                   1372:        }
                   1373:
1.43      nicm     1374: absolute:
1.42      nicm     1375:        /* Absolute movement. */
                   1376:        tty_putcode2(tty, TTYC_CUP, cy, cx);
                   1377:
                   1378: out:
                   1379:        tty->cx = cx;
                   1380:        tty->cy = cy;
1.1       nicm     1381: }
                   1382:
                   1383: void
1.176     nicm     1384: tty_attributes(struct tty *tty, const struct grid_cell *gc,
                   1385:     const struct window_pane *wp)
1.1       nicm     1386: {
1.63      nicm     1387:        struct grid_cell        *tc = &tty->cell, gc2;
1.85      nicm     1388:        u_char                   changed;
1.61      nicm     1389:
1.85      nicm     1390:        memcpy(&gc2, gc, sizeof gc2);
1.176     nicm     1391:        tty_default_colours(&gc2, wp);
1.63      nicm     1392:
1.18      nicm     1393:        /*
                   1394:         * If no setab, try to use the reverse attribute as a best-effort for a
                   1395:         * non-default background. This is a bit of a hack but it doesn't do
                   1396:         * any serious harm and makes a couple of applications happier.
                   1397:         */
                   1398:        if (!tty_term_has(tty->term, TTYC_SETAB)) {
1.85      nicm     1399:                if (gc2.attr & GRID_ATTR_REVERSE) {
                   1400:                        if (gc2.fg != 7 && gc2.fg != 8)
1.64      nicm     1401:                                gc2.attr &= ~GRID_ATTR_REVERSE;
1.18      nicm     1402:                } else {
1.85      nicm     1403:                        if (gc2.bg != 0 && gc2.bg != 8)
1.64      nicm     1404:                                gc2.attr |= GRID_ATTR_REVERSE;
1.18      nicm     1405:                }
                   1406:        }
1.1       nicm     1407:
1.85      nicm     1408:        /* Fix up the colours if necessary. */
                   1409:        tty_check_fg(tty, &gc2);
                   1410:        tty_check_bg(tty, &gc2);
                   1411:
1.64      nicm     1412:        /* If any bits are being cleared, reset everything. */
1.85      nicm     1413:        if (tc->attr & ~gc2.attr)
1.64      nicm     1414:                tty_reset(tty);
                   1415:
                   1416:        /*
                   1417:         * Set the colours. This may call tty_reset() (so it comes next) and
                   1418:         * may add to (NOT remove) the desired attributes by changing new_attr.
                   1419:         */
1.85      nicm     1420:        tty_colours(tty, &gc2);
1.64      nicm     1421:
1.1       nicm     1422:        /* Filter out attribute bits already set. */
1.85      nicm     1423:        changed = gc2.attr & ~tc->attr;
                   1424:        tc->attr = gc2.attr;
1.1       nicm     1425:
                   1426:        /* Set the attributes. */
                   1427:        if (changed & GRID_ATTR_BRIGHT)
                   1428:                tty_putcode(tty, TTYC_BOLD);
                   1429:        if (changed & GRID_ATTR_DIM)
                   1430:                tty_putcode(tty, TTYC_DIM);
1.180     nicm     1431:        if (changed & GRID_ATTR_ITALICS)
                   1432:                tty_set_italics(tty);
1.1       nicm     1433:        if (changed & GRID_ATTR_UNDERSCORE)
                   1434:                tty_putcode(tty, TTYC_SMUL);
                   1435:        if (changed & GRID_ATTR_BLINK)
                   1436:                tty_putcode(tty, TTYC_BLINK);
                   1437:        if (changed & GRID_ATTR_REVERSE) {
                   1438:                if (tty_term_has(tty->term, TTYC_REV))
                   1439:                        tty_putcode(tty, TTYC_REV);
                   1440:                else if (tty_term_has(tty->term, TTYC_SMSO))
                   1441:                        tty_putcode(tty, TTYC_SMSO);
                   1442:        }
                   1443:        if (changed & GRID_ATTR_HIDDEN)
                   1444:                tty_putcode(tty, TTYC_INVIS);
1.90      nicm     1445:        if ((changed & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1.1       nicm     1446:                tty_putcode(tty, TTYC_SMACS);
                   1447: }
                   1448:
1.61      nicm     1449: void
1.85      nicm     1450: tty_colours(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1451: {
1.61      nicm     1452:        struct grid_cell        *tc = &tty->cell;
1.62      nicm     1453:        u_char                   fg = gc->fg, bg = gc->bg, flags = gc->flags;
                   1454:        int                      have_ax, fg_default, bg_default;
1.61      nicm     1455:
                   1456:        /* No changes? Nothing is necessary. */
1.62      nicm     1457:        if (fg == tc->fg && bg == tc->bg &&
                   1458:            ((flags ^ tc->flags) & (GRID_FLAG_FG256|GRID_FLAG_BG256)) == 0)
1.63      nicm     1459:                return;
1.1       nicm     1460:
1.61      nicm     1461:        /*
                   1462:         * Is either the default colour? This is handled specially because the
                   1463:         * best solution might be to reset both colours to default, in which
                   1464:         * case if only one is default need to fall onward to set the other
                   1465:         * colour.
                   1466:         */
1.62      nicm     1467:        fg_default = (fg == 8 && !(flags & GRID_FLAG_FG256));
                   1468:        bg_default = (bg == 8 && !(flags & GRID_FLAG_BG256));
1.61      nicm     1469:        if (fg_default || bg_default) {
                   1470:                /*
                   1471:                 * If don't have AX but do have op, send sgr0 (op can't
                   1472:                 * actually be used because it is sometimes the same as sgr0
                   1473:                 * and sometimes isn't). This resets both colours to default.
                   1474:                 *
                   1475:                 * Otherwise, try to set the default colour only as needed.
                   1476:                 */
1.174     nicm     1477:                have_ax = tty_term_flag(tty->term, TTYC_AX);
1.61      nicm     1478:                if (!have_ax && tty_term_has(tty->term, TTYC_OP))
                   1479:                        tty_reset(tty);
                   1480:                else {
                   1481:                        if (fg_default &&
1.81      nicm     1482:                            (tc->fg != 8 || tc->flags & GRID_FLAG_FG256)) {
1.61      nicm     1483:                                if (have_ax)
                   1484:                                        tty_puts(tty, "\033[39m");
1.81      nicm     1485:                                else if (tc->fg != 7 ||
                   1486:                                    tc->flags & GRID_FLAG_FG256)
1.61      nicm     1487:                                        tty_putcode1(tty, TTYC_SETAF, 7);
                   1488:                                tc->fg = 8;
                   1489:                                tc->flags &= ~GRID_FLAG_FG256;
                   1490:                        }
                   1491:                        if (bg_default &&
1.81      nicm     1492:                            (tc->bg != 8 || tc->flags & GRID_FLAG_BG256)) {
1.77      nicm     1493:                                if (have_ax)
1.61      nicm     1494:                                        tty_puts(tty, "\033[49m");
1.81      nicm     1495:                                else if (tc->bg != 0 ||
                   1496:                                    tc->flags & GRID_FLAG_BG256)
1.61      nicm     1497:                                        tty_putcode1(tty, TTYC_SETAB, 0);
                   1498:                                tc->bg = 8;
                   1499:                                tc->flags &= ~GRID_FLAG_BG256;
                   1500:                        }
                   1501:                }
                   1502:        }
1.1       nicm     1503:
1.61      nicm     1504:        /* Set the foreground colour. */
                   1505:        if (!fg_default && (fg != tc->fg ||
1.62      nicm     1506:            ((flags & GRID_FLAG_FG256) != (tc->flags & GRID_FLAG_FG256))))
1.85      nicm     1507:                tty_colours_fg(tty, gc);
1.1       nicm     1508:
1.61      nicm     1509:        /*
                   1510:         * Set the background colour. This must come after the foreground as
                   1511:         * tty_colour_fg() can call tty_reset().
                   1512:         */
                   1513:        if (!bg_default && (bg != tc->bg ||
1.62      nicm     1514:            ((flags & GRID_FLAG_BG256) != (tc->flags & GRID_FLAG_BG256))))
1.73      nicm     1515:                tty_colours_bg(tty, gc);
1.1       nicm     1516: }
                   1517:
                   1518: void
1.85      nicm     1519: tty_check_fg(struct tty *tty, struct grid_cell *gc)
                   1520: {
                   1521:        u_int   colours;
                   1522:
1.175     nicm     1523:        colours = tty_term_number(tty->term, TTYC_COLORS);
                   1524:
1.85      nicm     1525:        /* Is this a 256-colour colour? */
                   1526:        if (gc->flags & GRID_FLAG_FG256) {
                   1527:                /* And not a 256 colour mode? */
1.158     nicm     1528:                if (!(tty->term->flags & TERM_256COLOURS) &&
1.85      nicm     1529:                    !(tty->term_flags & TERM_256COLOURS)) {
                   1530:                        gc->fg = colour_256to16(gc->fg);
                   1531:                        if (gc->fg & 8) {
                   1532:                                gc->fg &= 7;
1.175     nicm     1533:                                if (colours >= 16)
                   1534:                                        gc->fg += 90;
                   1535:                                else
                   1536:                                        gc->attr |= GRID_ATTR_BRIGHT;
1.85      nicm     1537:                        } else
                   1538:                                gc->attr &= ~GRID_ATTR_BRIGHT;
                   1539:                        gc->flags &= ~GRID_FLAG_FG256;
                   1540:                }
                   1541:                return;
                   1542:        }
                   1543:
                   1544:        /* Is this an aixterm colour? */
                   1545:        if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) {
                   1546:                gc->fg -= 90;
                   1547:                gc->attr |= GRID_ATTR_BRIGHT;
                   1548:        }
                   1549: }
                   1550:
                   1551: void
                   1552: tty_check_bg(struct tty *tty, struct grid_cell *gc)
                   1553: {
                   1554:        u_int   colours;
                   1555:
1.175     nicm     1556:        colours = tty_term_number(tty->term, TTYC_COLORS);
                   1557:
1.85      nicm     1558:        /* Is this a 256-colour colour? */
                   1559:        if (gc->flags & GRID_FLAG_BG256) {
                   1560:                /*
                   1561:                 * And not a 256 colour mode? Translate to 16-colour
                   1562:                 * palette. Bold background doesn't exist portably, so just
                   1563:                 * discard the bold bit if set.
                   1564:                 */
1.158     nicm     1565:                if (!(tty->term->flags & TERM_256COLOURS) &&
1.85      nicm     1566:                    !(tty->term_flags & TERM_256COLOURS)) {
                   1567:                        gc->bg = colour_256to16(gc->bg);
1.175     nicm     1568:                        if (gc->bg & 8) {
1.85      nicm     1569:                                gc->bg &= 7;
1.175     nicm     1570:                                if (colours >= 16)
                   1571:                                        gc->fg += 90;
                   1572:                        }
1.85      nicm     1573:                        gc->flags &= ~GRID_FLAG_BG256;
                   1574:                }
                   1575:                return;
                   1576:        }
                   1577:
                   1578:        /* Is this an aixterm colour? */
1.175     nicm     1579:        if (gc->bg >= 90 && gc->bg <= 97 && colours < 16)
1.85      nicm     1580:                gc->bg -= 90;
                   1581: }
                   1582:
                   1583: void
                   1584: tty_colours_fg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1585: {
1.61      nicm     1586:        struct grid_cell        *tc = &tty->cell;
                   1587:        u_char                   fg = gc->fg;
1.79      nicm     1588:        char                     s[32];
1.1       nicm     1589:
1.61      nicm     1590:        /* Is this a 256-colour colour? */
1.1       nicm     1591:        if (gc->flags & GRID_FLAG_FG256) {
1.158     nicm     1592:                /* Try as 256 colours. */
1.1       nicm     1593:                if (tty_try_256(tty, fg, "38") == 0)
1.61      nicm     1594:                        goto save_fg;
1.85      nicm     1595:                /* Else already handled by tty_check_fg. */
                   1596:                return;
1.1       nicm     1597:        }
                   1598:
1.79      nicm     1599:        /* Is this an aixterm bright colour? */
                   1600:        if (fg >= 90 && fg <= 97) {
1.85      nicm     1601:                xsnprintf(s, sizeof s, "\033[%dm", fg);
                   1602:                tty_puts(tty, s);
                   1603:                goto save_fg;
1.79      nicm     1604:        }
                   1605:
1.61      nicm     1606:        /* Otherwise set the foreground colour. */
                   1607:        tty_putcode1(tty, TTYC_SETAF, fg);
                   1608:
1.77      nicm     1609: save_fg:
1.61      nicm     1610:        /* Save the new values in the terminal current cell. */
                   1611:        tc->fg = fg;
                   1612:        tc->flags &= ~GRID_FLAG_FG256;
                   1613:        tc->flags |= gc->flags & GRID_FLAG_FG256;
1.1       nicm     1614: }
                   1615:
                   1616: void
1.73      nicm     1617: tty_colours_bg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1618: {
1.61      nicm     1619:        struct grid_cell        *tc = &tty->cell;
                   1620:        u_char                   bg = gc->bg;
1.79      nicm     1621:        char                     s[32];
1.1       nicm     1622:
1.61      nicm     1623:        /* Is this a 256-colour colour? */
1.1       nicm     1624:        if (gc->flags & GRID_FLAG_BG256) {
1.158     nicm     1625:                /* Try as 256 colours. */
1.1       nicm     1626:                if (tty_try_256(tty, bg, "48") == 0)
1.61      nicm     1627:                        goto save_bg;
1.85      nicm     1628:                /* Else already handled by tty_check_bg. */
                   1629:                return;
1.79      nicm     1630:        }
                   1631:
                   1632:        /* Is this an aixterm bright colour? */
1.112     nicm     1633:        if (bg >= 90 && bg <= 97) {
1.175     nicm     1634:                xsnprintf(s, sizeof s, "\033[%dm", bg + 10);
                   1635:                tty_puts(tty, s);
                   1636:                goto save_bg;
1.1       nicm     1637:        }
                   1638:
1.61      nicm     1639:        /* Otherwise set the background colour. */
                   1640:        tty_putcode1(tty, TTYC_SETAB, bg);
                   1641:
                   1642: save_bg:
                   1643:        /* Save the new values in the terminal current cell. */
                   1644:        tc->bg = bg;
                   1645:        tc->flags &= ~GRID_FLAG_BG256;
                   1646:        tc->flags |= gc->flags & GRID_FLAG_BG256;
                   1647: }
                   1648:
                   1649: int
                   1650: tty_try_256(struct tty *tty, u_char colour, const char *type)
                   1651: {
                   1652:        char    s[32];
                   1653:
1.165     nicm     1654:        /*
                   1655:         * If the terminfo entry has 256 colours, assume that setaf and setab
                   1656:         * work correctly.
                   1657:         */
                   1658:        if (tty->term->flags & TERM_256COLOURS) {
                   1659:                if (*type == '3')
                   1660:                        tty_putcode1(tty, TTYC_SETAF, colour);
                   1661:                else
                   1662:                        tty_putcode1(tty, TTYC_SETAB, colour);
                   1663:                return (0);
                   1664:        }
                   1665:
                   1666:        /*
                   1667:         * If the user has specified -2 to the client, setaf and setab may not
                   1668:         * work, so send the usual sequence.
                   1669:         */
                   1670:        if (tty->term_flags & TERM_256COLOURS) {
                   1671:                xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
                   1672:                tty_puts(tty, s);
                   1673:                return (0);
                   1674:        }
1.61      nicm     1675:
1.165     nicm     1676:        return (-1);
1.176     nicm     1677: }
                   1678:
                   1679: void
                   1680: tty_default_colours(struct grid_cell *gc, const struct window_pane *wp)
                   1681: {
                   1682:        const struct grid_cell        *agc, *pgc, *wgc;
                   1683:
                   1684:        if (wp == NULL)
                   1685:                return;
                   1686:
                   1687:        pgc = &wp->colgc;
                   1688:        agc = options_get_style(&wp->window->options, "window-active-style");
                   1689:        wgc = options_get_style(&wp->window->options, "window-style");
                   1690:
                   1691:        if (gc->fg == 8 && !(gc->flags & GRID_FLAG_FG256)) {
                   1692:                if (pgc->fg != 8 || (pgc->flags & GRID_FLAG_FG256)) {
                   1693:                        gc->fg = pgc->fg;
                   1694:                        gc->flags |= (pgc->flags & GRID_FLAG_FG256);
                   1695:                } else if (wp == wp->window->active &&
                   1696:                    (agc->fg != 8 || (agc->flags & GRID_FLAG_FG256))) {
                   1697:                        gc->fg = agc->fg;
                   1698:                        gc->flags |= (agc->flags & GRID_FLAG_FG256);
                   1699:                } else {
                   1700:                        gc->fg = wgc->fg;
                   1701:                        gc->flags |= (wgc->flags & GRID_FLAG_FG256);
                   1702:                }
                   1703:        }
                   1704:
                   1705:        if (gc->bg == 8 && !(gc->flags & GRID_FLAG_BG256)) {
                   1706:                if (pgc->bg != 8 || (pgc->flags & GRID_FLAG_BG256)) {
                   1707:                        gc->bg = pgc->bg;
                   1708:                        gc->flags |= (pgc->flags & GRID_FLAG_BG256);
                   1709:                } else if (wp == wp->window->active &&
                   1710:                    (agc->bg != 8 || (agc->flags & GRID_FLAG_BG256))) {
                   1711:                        gc->bg = agc->bg;
                   1712:                        gc->flags |= (agc->flags & GRID_FLAG_BG256);
                   1713:                } else {
                   1714:                        gc->bg = wgc->bg;
                   1715:                        gc->flags |= (wgc->flags & GRID_FLAG_BG256);
                   1716:                }
                   1717:        }
1.110     nicm     1718: }
                   1719:
                   1720: void
                   1721: tty_bell(struct tty *tty)
                   1722: {
                   1723:        tty_putcode(tty, TTYC_BEL);
1.1       nicm     1724: }