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Annotation of src/usr.bin/tmux/tty.c, Revision 1.200

1.200   ! nicm        1: /* $OpenBSD: tty.c,v 1.199 2016/01/29 11:13:56 nicm Exp $ */
1.1       nicm        2:
                      3: /*
1.198     nicm        4:  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1       nicm        5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
                     15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18:
                     19: #include <sys/types.h>
                     20: #include <sys/ioctl.h>
                     21:
1.106     nicm       22: #include <netinet/in.h>
                     23:
1.1       nicm       24: #include <errno.h>
                     25: #include <fcntl.h>
1.106     nicm       26: #include <resolv.h>
1.42      nicm       27: #include <stdlib.h>
1.1       nicm       28: #include <string.h>
                     29: #include <termios.h>
                     30: #include <unistd.h>
                     31:
                     32: #include "tmux.h"
                     33:
1.192     nicm       34: static int tty_log_fd = -1;
                     35:
1.67      nicm       36: void   tty_read_callback(struct bufferevent *, void *);
1.66      nicm       37: void   tty_error_callback(struct bufferevent *, short, void *);
                     38:
1.199     nicm       39: static int tty_same_fg(const struct grid_cell *, const struct grid_cell *);
                     40: static int tty_same_bg(const struct grid_cell *, const struct grid_cell *);
                     41: static int tty_same_colours(const struct grid_cell *, const struct grid_cell *);
                     42: static int tty_is_fg(const struct grid_cell *, int);
                     43: static int tty_is_bg(const struct grid_cell *, int);
                     44:
1.180     nicm       45: void   tty_set_italics(struct tty *);
1.1       nicm       46: int    tty_try_256(struct tty *, u_char, const char *);
1.199     nicm       47: int    tty_try_rgb(struct tty *, const struct grid_cell_rgb *, const char *);
1.1       nicm       48:
1.85      nicm       49: void   tty_colours(struct tty *, const struct grid_cell *);
                     50: void   tty_check_fg(struct tty *, struct grid_cell *);
                     51: void   tty_check_bg(struct tty *, struct grid_cell *);
                     52: void   tty_colours_fg(struct tty *, const struct grid_cell *);
1.73      nicm       53: void   tty_colours_bg(struct tty *, const struct grid_cell *);
1.1       nicm       54:
1.120     nicm       55: int    tty_large_region(struct tty *, const struct tty_ctx *);
1.176     nicm       56: int    tty_fake_bce(const struct tty *, const struct window_pane *);
1.24      nicm       57: void   tty_redraw_region(struct tty *, const struct tty_ctx *);
1.196     nicm       58: void   tty_emulate_repeat(struct tty *, enum tty_code_code, enum tty_code_code,
                     59:            u_int);
1.133     nicm       60: void   tty_repeat_space(struct tty *, u_int);
1.176     nicm       61: void   tty_cell(struct tty *, const struct grid_cell *,
                     62:            const struct window_pane *);
                     63: void   tty_default_colours(struct grid_cell *, const struct window_pane *);
1.1       nicm       64:
1.90      nicm       65: #define tty_use_acs(tty) \
1.131     nicm       66:        (tty_term_has((tty)->term, TTYC_ACSC) && !((tty)->flags & TTY_UTF8))
1.90      nicm       67:
1.132     nicm       68: #define tty_pane_full_width(tty, ctx) \
                     69:        ((ctx)->xoff == 0 && screen_size_x((ctx)->wp->screen) >= (tty)->sx)
                     70:
1.199     nicm       71: static int
                     72: tty_same_fg(const struct grid_cell *gc1, const struct grid_cell *gc2)
                     73: {
                     74:        int     flags1, flags2;
                     75:
                     76:        flags1 = (gc1->flags & (GRID_FLAG_FG256|GRID_FLAG_FGRGB));
                     77:        flags2 = (gc2->flags & (GRID_FLAG_FG256|GRID_FLAG_FGRGB));
                     78:
                     79:        if (flags1 != flags2)
                     80:            return (0);
                     81:
                     82:        if (flags1 & GRID_FLAG_FGRGB) {
                     83:                if (gc1->fg_rgb.r != gc2->fg_rgb.r)
                     84:                        return (0);
                     85:                if (gc1->fg_rgb.g != gc2->fg_rgb.g)
                     86:                        return (0);
                     87:                if (gc1->fg_rgb.b != gc2->fg_rgb.b)
                     88:                        return (0);
                     89:                return (1);
                     90:        }
                     91:        return (gc1->fg == gc2->fg);
                     92: }
                     93:
                     94: static int
                     95: tty_same_bg(const struct grid_cell *gc1, const struct grid_cell *gc2)
                     96: {
                     97:        int     flags1, flags2;
                     98:
                     99:        flags1 = (gc1->flags & (GRID_FLAG_BG256|GRID_FLAG_BGRGB));
                    100:        flags2 = (gc2->flags & (GRID_FLAG_BG256|GRID_FLAG_BGRGB));
                    101:
                    102:        if (flags1 != flags2)
                    103:            return (0);
                    104:
                    105:        if (flags1 & GRID_FLAG_BGRGB) {
                    106:                if (gc1->bg_rgb.r != gc2->bg_rgb.r)
                    107:                        return (0);
                    108:                if (gc1->bg_rgb.g != gc2->bg_rgb.g)
                    109:                        return (0);
                    110:                if (gc1->bg_rgb.b != gc2->bg_rgb.b)
                    111:                        return (0);
                    112:                return (1);
                    113:        }
                    114:        return (gc1->bg == gc2->bg);
                    115: }
                    116:
                    117: static int
                    118: tty_same_colours(const struct grid_cell *gc1, const struct grid_cell *gc2)
                    119: {
                    120:        return (tty_same_fg(gc1, gc2) && tty_same_bg(gc1, gc2));
                    121: }
                    122:
                    123: static int
                    124: tty_is_fg(const struct grid_cell *gc, int c)
                    125: {
                    126:        if (gc->flags & (GRID_FLAG_FG256|GRID_FLAG_FGRGB))
                    127:                return (0);
                    128:        return (gc->fg == c);
                    129: }
                    130:
                    131: static int
                    132: tty_is_bg(const struct grid_cell *gc, int c)
                    133: {
                    134:        if (gc->flags & (GRID_FLAG_BG256|GRID_FLAG_BGRGB))
                    135:                return (0);
                    136:        return (gc->bg == c);
                    137: }
                    138:
1.192     nicm      139: void
                    140: tty_create_log(void)
                    141: {
                    142:        char    name[64];
                    143:
                    144:        xsnprintf(name, sizeof name, "tmux-out-%ld.log", (long)getpid());
                    145:
                    146:        tty_log_fd = open(name, O_WRONLY|O_CREAT|O_TRUNC, 0644);
                    147:        if (tty_log_fd != -1 && fcntl(tty_log_fd, F_SETFD, FD_CLOEXEC) == -1)
                    148:                fatal("fcntl failed");
                    149: }
                    150:
1.185     nicm      151: int
1.136     nicm      152: tty_init(struct tty *tty, struct client *c, int fd, char *term)
1.1       nicm      153: {
1.30      nicm      154:        char    *path;
                    155:
1.185     nicm      156:        if (!isatty(fd))
                    157:                return (-1);
                    158:
1.30      nicm      159:        memset(tty, 0, sizeof *tty);
1.22      nicm      160:
1.9       nicm      161:        if (term == NULL || *term == '\0')
1.1       nicm      162:                tty->termname = xstrdup("unknown");
                    163:        else
                    164:                tty->termname = xstrdup(term);
1.30      nicm      165:        tty->fd = fd;
1.136     nicm      166:        tty->client = c;
1.30      nicm      167:
                    168:        if ((path = ttyname(fd)) == NULL)
1.185     nicm      169:                return (-1);
1.30      nicm      170:        tty->path = xstrdup(path);
1.108     nicm      171:        tty->cstyle = 0;
1.107     nicm      172:        tty->ccolour = xstrdup("");
1.30      nicm      173:
1.1       nicm      174:        tty->flags = 0;
                    175:        tty->term_flags = 0;
1.185     nicm      176:
                    177:        return (0);
1.31      nicm      178: }
                    179:
1.88      nicm      180: int
1.31      nicm      181: tty_resize(struct tty *tty)
                    182: {
                    183:        struct winsize  ws;
1.88      nicm      184:        u_int           sx, sy;
1.31      nicm      185:
                    186:        if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
1.88      nicm      187:                sx = ws.ws_col;
                    188:                if (sx == 0)
                    189:                        sx = 80;
                    190:                sy = ws.ws_row;
                    191:                if (sy == 0)
                    192:                        sy = 24;
                    193:        } else {
                    194:                sx = 80;
                    195:                sy = 24;
1.31      nicm      196:        }
1.114     nicm      197:        if (!tty_set_size(tty, sx, sy))
1.88      nicm      198:                return (0);
1.31      nicm      199:
                    200:        tty->cx = UINT_MAX;
                    201:        tty->cy = UINT_MAX;
                    202:
                    203:        tty->rupper = UINT_MAX;
                    204:        tty->rlower = UINT_MAX;
1.88      nicm      205:
                    206:        /*
                    207:         * If the terminal has been started, reset the actual scroll region and
                    208:         * cursor position, as this may not have happened.
                    209:         */
                    210:        if (tty->flags & TTY_STARTED) {
                    211:                tty_cursor(tty, 0, 0);
                    212:                tty_region(tty, 0, tty->sy - 1);
                    213:        }
                    214:
1.114     nicm      215:        return (1);
                    216: }
                    217:
                    218: int
                    219: tty_set_size(struct tty *tty, u_int sx, u_int sy) {
                    220:        if (sx == tty->sx && sy == tty->sy)
                    221:                return (0);
                    222:        tty->sx = sx;
                    223:        tty->sy = sy;
1.88      nicm      224:        return (1);
1.1       nicm      225: }
                    226:
                    227: int
1.166     nicm      228: tty_open(struct tty *tty, char **cause)
1.1       nicm      229: {
1.166     nicm      230:        tty->term = tty_term_find(tty->termname, tty->fd, cause);
1.21      nicm      231:        if (tty->term == NULL) {
                    232:                tty_close(tty);
                    233:                return (-1);
                    234:        }
                    235:        tty->flags |= TTY_OPENED;
1.1       nicm      236:
1.149     nicm      237:        tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_TIMER);
1.1       nicm      238:
1.196     nicm      239:        tty->event = bufferevent_new(tty->fd, tty_read_callback, NULL,
                    240:            tty_error_callback, tty);
1.1       nicm      241:
                    242:        tty_start_tty(tty);
                    243:
1.148     nicm      244:        tty_keys_build(tty);
1.1       nicm      245:
                    246:        return (0);
                    247: }
                    248:
                    249: void
1.194     nicm      250: tty_read_callback(__unused struct bufferevent *bufev, void *data)
1.67      nicm      251: {
                    252:        struct tty      *tty = data;
                    253:
                    254:        while (tty_keys_next(tty))
                    255:                ;
                    256: }
                    257:
                    258: void
1.194     nicm      259: tty_error_callback(__unused struct bufferevent *bufev, __unused short what,
                    260:     __unused void *data)
1.66      nicm      261: {
                    262: }
                    263:
                    264: void
1.127     nicm      265: tty_init_termios(int fd, struct termios *orig_tio, struct bufferevent *bufev)
1.1       nicm      266: {
1.128     nicm      267:        struct termios  tio;
1.33      nicm      268:
1.127     nicm      269:        if (fd == -1 || tcgetattr(fd, orig_tio) != 0)
1.33      nicm      270:                return;
1.1       nicm      271:
1.127     nicm      272:        setblocking(fd, 0);
1.34      nicm      273:
1.127     nicm      274:        if (bufev != NULL)
                    275:                bufferevent_enable(bufev, EV_READ|EV_WRITE);
1.66      nicm      276:
1.127     nicm      277:        memcpy(&tio, orig_tio, sizeof tio);
1.1       nicm      278:        tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
                    279:        tio.c_iflag |= IGNBRK;
                    280:        tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
                    281:        tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
1.169     jsg       282:            ECHOPRT|ECHOKE|ISIG);
1.1       nicm      283:        tio.c_cc[VMIN] = 1;
1.60      deraadt   284:        tio.c_cc[VTIME] = 0;
1.127     nicm      285:        if (tcsetattr(fd, TCSANOW, &tio) == 0)
                    286:                tcflush(fd, TCIOFLUSH);
                    287: }
                    288:
                    289: void
                    290: tty_start_tty(struct tty *tty)
                    291: {
                    292:        tty_init_termios(tty->fd, &tty->tio, tty->event);
1.1       nicm      293:
1.10      nicm      294:        tty_putcode(tty, TTYC_SMCUP);
1.1       nicm      295:
1.25      nicm      296:        tty_putcode(tty, TTYC_SGR0);
                    297:        memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
                    298:
1.76      nicm      299:        tty_putcode(tty, TTYC_RMKX);
1.90      nicm      300:        if (tty_use_acs(tty))
                    301:                tty_putcode(tty, TTYC_ENACS);
1.1       nicm      302:        tty_putcode(tty, TTYC_CLEAR);
                    303:
                    304:        tty_putcode(tty, TTYC_CNORM);
                    305:        if (tty_term_has(tty->term, TTYC_KMOUS))
1.179     nicm      306:                tty_puts(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
1.121     nicm      307:
1.189     nicm      308:        if (tty_term_flag(tty->term, TTYC_XT)) {
1.191     nicm      309:                if (options_get_number(global_options, "focus-events")) {
1.162     nicm      310:                        tty->flags |= TTY_FOCUS;
                    311:                        tty_puts(tty, "\033[?1004h");
                    312:                }
                    313:        }
1.1       nicm      314:
                    315:        tty->cx = UINT_MAX;
                    316:        tty->cy = UINT_MAX;
                    317:
                    318:        tty->rlower = UINT_MAX;
                    319:        tty->rupper = UINT_MAX;
                    320:
                    321:        tty->mode = MODE_CURSOR;
1.20      nicm      322:
                    323:        tty->flags |= TTY_STARTED;
1.107     nicm      324:
                    325:        tty_force_cursor_colour(tty, "");
1.177     nicm      326:
                    327:        tty->mouse_drag_flag = 0;
                    328:        tty->mouse_drag_update = NULL;
                    329:        tty->mouse_drag_release = NULL;
1.128     nicm      330: }
                    331:
                    332: void
1.1       nicm      333: tty_stop_tty(struct tty *tty)
                    334: {
                    335:        struct winsize  ws;
                    336:
1.20      nicm      337:        if (!(tty->flags & TTY_STARTED))
                    338:                return;
                    339:        tty->flags &= ~TTY_STARTED;
                    340:
1.66      nicm      341:        bufferevent_disable(tty->event, EV_READ|EV_WRITE);
                    342:
1.1       nicm      343:        /*
                    344:         * Be flexible about error handling and try not kill the server just
                    345:         * because the fd is invalid. Things like ssh -t can easily leave us
                    346:         * with a dead tty.
                    347:         */
                    348:        if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
                    349:                return;
                    350:        if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
                    351:                return;
                    352:
                    353:        tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
1.90      nicm      354:        if (tty_use_acs(tty))
                    355:                tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
1.1       nicm      356:        tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
                    357:        tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
                    358:        tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
1.160     nicm      359:        if (tty_term_has(tty->term, TTYC_SS) && tty->cstyle != 0) {
                    360:                if (tty_term_has(tty->term, TTYC_SE))
                    361:                        tty_raw(tty, tty_term_string(tty->term, TTYC_SE));
1.109     nicm      362:                else
1.160     nicm      363:                        tty_raw(tty, tty_term_string1(tty->term, TTYC_SS, 0));
1.108     nicm      364:        }
1.173     nicm      365:        if (tty->mode & MODE_BRACKETPASTE)
                    366:                tty_raw(tty, "\033[?2004l");
1.107     nicm      367:        tty_raw(tty, tty_term_string(tty->term, TTYC_CR));
1.1       nicm      368:
                    369:        tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
                    370:        if (tty_term_has(tty->term, TTYC_KMOUS))
1.179     nicm      371:                tty_raw(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
1.151     nicm      372:
1.189     nicm      373:        if (tty_term_flag(tty->term, TTYC_XT)) {
1.162     nicm      374:                if (tty->flags & TTY_FOCUS) {
                    375:                        tty->flags &= ~TTY_FOCUS;
1.172     nicm      376:                        tty_raw(tty, "\033[?1004l");
1.162     nicm      377:                }
                    378:        }
1.10      nicm      379:
                    380:        tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
1.150     nicm      381:
                    382:        setblocking(tty->fd, 1);
1.1       nicm      383: }
                    384:
                    385: void
1.20      nicm      386: tty_close(struct tty *tty)
1.1       nicm      387: {
1.123     nicm      388:        if (event_initialized(&tty->key_timer))
                    389:                evtimer_del(&tty->key_timer);
1.20      nicm      390:        tty_stop_tty(tty);
1.1       nicm      391:
1.21      nicm      392:        if (tty->flags & TTY_OPENED) {
1.66      nicm      393:                bufferevent_free(tty->event);
                    394:
1.21      nicm      395:                tty_term_free(tty->term);
                    396:                tty_keys_free(tty);
                    397:
                    398:                tty->flags &= ~TTY_OPENED;
                    399:        }
1.1       nicm      400:
1.21      nicm      401:        if (tty->fd != -1) {
                    402:                close(tty->fd);
                    403:                tty->fd = -1;
                    404:        }
1.1       nicm      405: }
                    406:
                    407: void
1.20      nicm      408: tty_free(struct tty *tty)
1.1       nicm      409: {
1.20      nicm      410:        tty_close(tty);
1.1       nicm      411:
1.138     nicm      412:        free(tty->ccolour);
1.190     nicm      413:        free(tty->path);
                    414:        free(tty->termname);
1.1       nicm      415: }
                    416:
                    417: void
                    418: tty_raw(struct tty *tty, const char *s)
                    419: {
1.150     nicm      420:        ssize_t n, slen;
                    421:        u_int   i;
                    422:
                    423:        slen = strlen(s);
                    424:        for (i = 0; i < 5; i++) {
                    425:                n = write(tty->fd, s, slen);
                    426:                if (n >= 0) {
                    427:                        s += n;
                    428:                        slen -= n;
                    429:                        if (slen == 0)
                    430:                                break;
                    431:                } else if (n == -1 && errno != EAGAIN)
                    432:                        break;
                    433:                usleep(100);
                    434:        }
1.1       nicm      435: }
                    436:
                    437: void
                    438: tty_putcode(struct tty *tty, enum tty_code_code code)
                    439: {
                    440:        tty_puts(tty, tty_term_string(tty->term, code));
                    441: }
                    442:
                    443: void
                    444: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
                    445: {
                    446:        if (a < 0)
                    447:                return;
                    448:        tty_puts(tty, tty_term_string1(tty->term, code, a));
                    449: }
                    450:
                    451: void
                    452: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
                    453: {
                    454:        if (a < 0 || b < 0)
                    455:                return;
                    456:        tty_puts(tty, tty_term_string2(tty->term, code, a, b));
                    457: }
                    458:
                    459: void
1.107     nicm      460: tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a)
                    461: {
                    462:        if (a != NULL)
                    463:                tty_puts(tty, tty_term_ptr1(tty->term, code, a));
                    464: }
                    465:
                    466: void
1.167     nicm      467: tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a,
                    468:     const void *b)
1.106     nicm      469: {
                    470:        if (a != NULL && b != NULL)
                    471:                tty_puts(tty, tty_term_ptr2(tty->term, code, a, b));
                    472: }
                    473:
                    474: void
1.1       nicm      475: tty_puts(struct tty *tty, const char *s)
                    476: {
                    477:        if (*s == '\0')
                    478:                return;
1.66      nicm      479:        bufferevent_write(tty->event, s, strlen(s));
1.1       nicm      480:
1.192     nicm      481:        if (tty_log_fd != -1)
                    482:                write(tty_log_fd, s, strlen(s));
1.1       nicm      483: }
                    484:
                    485: void
                    486: tty_putc(struct tty *tty, u_char ch)
                    487: {
1.90      nicm      488:        const char      *acs;
                    489:        u_int            sx;
1.1       nicm      490:
1.90      nicm      491:        if (tty->cell.attr & GRID_ATTR_CHARSET) {
                    492:                acs = tty_acs_get(tty, ch);
                    493:                if (acs != NULL)
                    494:                        bufferevent_write(tty->event, acs, strlen(acs));
                    495:                else
                    496:                        bufferevent_write(tty->event, &ch, 1);
                    497:        } else
                    498:                bufferevent_write(tty->event, &ch, 1);
1.1       nicm      499:
                    500:        if (ch >= 0x20 && ch != 0x7f) {
                    501:                sx = tty->sx;
                    502:                if (tty->term->flags & TERM_EARLYWRAP)
                    503:                        sx--;
                    504:
1.46      nicm      505:                if (tty->cx >= sx) {
                    506:                        tty->cx = 1;
                    507:                        if (tty->cy != tty->rlower)
                    508:                                tty->cy++;
1.1       nicm      509:                } else
                    510:                        tty->cx++;
                    511:        }
                    512:
1.192     nicm      513:        if (tty_log_fd != -1)
                    514:                write(tty_log_fd, &ch, 1);
1.1       nicm      515: }
                    516:
                    517: void
1.147     nicm      518: tty_putn(struct tty *tty, const void *buf, size_t len, u_int width)
1.5       nicm      519: {
1.147     nicm      520:        bufferevent_write(tty->event, buf, len);
1.192     nicm      521:        if (tty_log_fd != -1)
                    522:                write(tty_log_fd, buf, len);
1.147     nicm      523:        tty->cx += width;
1.5       nicm      524: }
                    525:
                    526: void
1.180     nicm      527: tty_set_italics(struct tty *tty)
                    528: {
                    529:        const char      *s;
                    530:
                    531:        if (tty_term_has(tty->term, TTYC_SITM)) {
1.191     nicm      532:                s = options_get_string(global_options, "default-terminal");
1.180     nicm      533:                if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) {
                    534:                        tty_putcode(tty, TTYC_SITM);
                    535:                        return;
                    536:                }
                    537:        }
                    538:        tty_putcode(tty, TTYC_SMSO);
                    539: }
                    540:
                    541: void
1.1       nicm      542: tty_set_title(struct tty *tty, const char *title)
                    543: {
1.105     nicm      544:        if (!tty_term_has(tty->term, TTYC_TSL) ||
                    545:            !tty_term_has(tty->term, TTYC_FSL))
1.1       nicm      546:                return;
                    547:
1.105     nicm      548:        tty_putcode(tty, TTYC_TSL);
1.1       nicm      549:        tty_puts(tty, title);
1.105     nicm      550:        tty_putcode(tty, TTYC_FSL);
1.1       nicm      551: }
                    552:
                    553: void
1.107     nicm      554: tty_force_cursor_colour(struct tty *tty, const char *ccolour)
                    555: {
                    556:        if (*ccolour == '\0')
                    557:                tty_putcode(tty, TTYC_CR);
                    558:        else
1.160     nicm      559:                tty_putcode_ptr1(tty, TTYC_CS, ccolour);
1.138     nicm      560:        free(tty->ccolour);
1.107     nicm      561:        tty->ccolour = xstrdup(ccolour);
                    562: }
                    563:
                    564: void
                    565: tty_update_mode(struct tty *tty, int mode, struct screen *s)
1.1       nicm      566: {
                    567:        int     changed;
                    568:
1.197     nicm      569:        if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0)
1.107     nicm      570:                tty_force_cursor_colour(tty, s->ccolour);
                    571:
1.1       nicm      572:        if (tty->flags & TTY_NOCURSOR)
                    573:                mode &= ~MODE_CURSOR;
                    574:
                    575:        changed = mode ^ tty->mode;
1.183     nicm      576:        if (changed & MODE_BLINKING) {
                    577:                if (tty_term_has(tty->term, TTYC_CVVIS))
                    578:                        tty_putcode(tty, TTYC_CVVIS);
                    579:                else
                    580:                        tty_putcode(tty, TTYC_CNORM);
                    581:                changed |= MODE_CURSOR;
                    582:        }
                    583:        if (changed & MODE_CURSOR) {
                    584:                if (mode & MODE_CURSOR)
                    585:                        tty_putcode(tty, TTYC_CNORM);
                    586:                else
1.1       nicm      587:                        tty_putcode(tty, TTYC_CIVIS);
1.108     nicm      588:        }
1.181     nicm      589:        if (s != NULL && tty->cstyle != s->cstyle) {
1.160     nicm      590:                if (tty_term_has(tty->term, TTYC_SS)) {
1.108     nicm      591:                        if (s->cstyle == 0 &&
1.160     nicm      592:                            tty_term_has(tty->term, TTYC_SE))
                    593:                                tty_putcode(tty, TTYC_SE);
1.108     nicm      594:                        else
1.160     nicm      595:                                tty_putcode1(tty, TTYC_SS, s->cstyle);
1.108     nicm      596:                }
                    597:                tty->cstyle = s->cstyle;
1.1       nicm      598:        }
1.195     nicm      599:        if (changed & ALL_MOUSE_MODES) {
1.94      nicm      600:                if (mode & ALL_MOUSE_MODES) {
1.153     nicm      601:                        /*
                    602:                         * Enable the SGR (1006) extension unconditionally, as
                    603:                         * this is safe from misinterpretation. Do it in this
                    604:                         * order, because in some terminals it's the last one
                    605:                         * that takes effect and SGR is the preferred one.
                    606:                         */
                    607:                        tty_puts(tty, "\033[?1006h");
1.170     nicm      608:                        if (mode & MODE_MOUSE_BUTTON)
1.94      nicm      609:                                tty_puts(tty, "\033[?1002h");
1.98      nicm      610:                        else if (mode & MODE_MOUSE_STANDARD)
                    611:                                tty_puts(tty, "\033[?1000h");
1.86      nicm      612:                } else {
1.170     nicm      613:                        if (tty->mode & MODE_MOUSE_BUTTON)
1.94      nicm      614:                                tty_puts(tty, "\033[?1002l");
1.98      nicm      615:                        else if (tty->mode & MODE_MOUSE_STANDARD)
                    616:                                tty_puts(tty, "\033[?1000l");
1.153     nicm      617:                        tty_puts(tty, "\033[?1006l");
1.86      nicm      618:                }
1.76      nicm      619:        }
                    620:        if (changed & MODE_KKEYPAD) {
                    621:                if (mode & MODE_KKEYPAD)
                    622:                        tty_putcode(tty, TTYC_SMKX);
                    623:                else
                    624:                        tty_putcode(tty, TTYC_RMKX);
1.115     nicm      625:        }
                    626:        if (changed & MODE_BRACKETPASTE) {
                    627:                if (mode & MODE_BRACKETPASTE)
                    628:                        tty_puts(tty, "\033[?2004h");
                    629:                else
                    630:                        tty_puts(tty, "\033[?2004l");
1.1       nicm      631:        }
                    632:        tty->mode = mode;
                    633: }
                    634:
                    635: void
1.168     nicm      636: tty_emulate_repeat(struct tty *tty, enum tty_code_code code,
                    637:     enum tty_code_code code1, u_int n)
1.1       nicm      638: {
                    639:        if (tty_term_has(tty->term, code))
                    640:                tty_putcode1(tty, code, n);
                    641:        else {
                    642:                while (n-- > 0)
                    643:                        tty_putcode(tty, code1);
                    644:        }
                    645: }
                    646:
1.133     nicm      647: void
                    648: tty_repeat_space(struct tty *tty, u_int n)
                    649: {
                    650:        while (n-- > 0)
                    651:                tty_putc(tty, ' ');
                    652: }
                    653:
1.1       nicm      654: /*
1.119     nicm      655:  * Is the region large enough to be worth redrawing once later rather than
                    656:  * probably several times now? Currently yes if it is more than 50% of the
                    657:  * pane.
                    658:  */
                    659: int
1.194     nicm      660: tty_large_region(__unused struct tty *tty, const struct tty_ctx *ctx)
1.119     nicm      661: {
                    662:        struct window_pane      *wp = ctx->wp;
                    663:
                    664:        return (ctx->orlower - ctx->orupper >= screen_size_y(wp->screen) / 2);
                    665: }
                    666:
                    667: /*
1.176     nicm      668:  * Return if BCE is needed but the terminal doesn't have it - it'll need to be
                    669:  * emulated.
                    670:  */
                    671: int
                    672: tty_fake_bce(const struct tty *tty, const struct window_pane *wp)
                    673: {
                    674:        struct grid_cell        gc;
                    675:
                    676:        memcpy(&gc, &grid_default_cell, sizeof gc);
                    677:        tty_default_colours(&gc, wp);
                    678:
                    679:        if (gc.bg == 8 && !(gc.flags & GRID_FLAG_BG256))
                    680:                return (0);
                    681:        return (!tty_term_flag(tty->term, TTYC_BCE));
                    682: }
                    683:
                    684: /*
1.1       nicm      685:  * Redraw scroll region using data from screen (already updated). Used when
                    686:  * CSR not supported, or window is a pane that doesn't take up the full
                    687:  * width of the terminal.
                    688:  */
                    689: void
1.24      nicm      690: tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      691: {
1.14      nicm      692:        struct window_pane      *wp = ctx->wp;
                    693:        struct screen           *s = wp->screen;
                    694:        u_int                    i;
1.1       nicm      695:
                    696:        /*
1.119     nicm      697:         * If region is large, schedule a window redraw. In most cases this is
                    698:         * likely to be followed by some more scrolling.
1.1       nicm      699:         */
1.119     nicm      700:        if (tty_large_region(tty, ctx)) {
1.1       nicm      701:                wp->flags |= PANE_REDRAW;
                    702:                return;
                    703:        }
                    704:
1.14      nicm      705:        if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
                    706:                for (i = ctx->ocy; i < screen_size_y(s); i++)
1.176     nicm      707:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      708:        } else {
1.14      nicm      709:                for (i = ctx->orupper; i <= ctx->orlower; i++)
1.176     nicm      710:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      711:        }
                    712: }
                    713:
                    714: void
1.176     nicm      715: tty_draw_pane(struct tty *tty, const struct window_pane *wp, u_int py, u_int ox,
                    716:     u_int oy)
                    717: {
                    718:        tty_draw_line(tty, wp, wp->screen, py, ox, oy);
                    719: }
                    720:
                    721: void
                    722: tty_draw_line(struct tty *tty, const struct window_pane *wp,
                    723:     struct screen *s, u_int py, u_int ox, u_int oy)
1.1       nicm      724: {
1.193     nicm      725:        struct grid_cell         gc;
1.46      nicm      726:        struct grid_line        *gl;
1.1       nicm      727:        u_int                    i, sx;
1.181     nicm      728:        int                      flags;
1.1       nicm      729:
1.181     nicm      730:        flags = tty->flags & TTY_NOCURSOR;
                    731:        tty->flags |= TTY_NOCURSOR;
                    732:        tty_update_mode(tty, tty->mode, s);
1.35      nicm      733:
1.1       nicm      734:        sx = screen_size_x(s);
1.19      nicm      735:        if (sx > s->grid->linedata[s->grid->hsize + py].cellsize)
                    736:                sx = s->grid->linedata[s->grid->hsize + py].cellsize;
1.1       nicm      737:        if (sx > tty->sx)
                    738:                sx = tty->sx;
                    739:
1.46      nicm      740:        /*
1.174     nicm      741:         * Don't move the cursor to the start position if it will wrap there
1.50      nicm      742:         * itself.
1.46      nicm      743:         */
                    744:        gl = NULL;
                    745:        if (py != 0)
                    746:                gl = &s->grid->linedata[s->grid->hsize + py - 1];
1.83      nicm      747:        if (oy + py == 0 || gl == NULL || !(gl->flags & GRID_LINE_WRAPPED) ||
1.47      nicm      748:            tty->cx < tty->sx || ox != 0 ||
                    749:            (oy + py != tty->cy + 1 && tty->cy != s->rlower + oy))
1.46      nicm      750:                tty_cursor(tty, ox, oy + py);
                    751:
1.1       nicm      752:        for (i = 0; i < sx; i++) {
1.193     nicm      753:                grid_view_get_cell(s->grid, i, py, &gc);
1.1       nicm      754:                if (screen_check_selection(s, i, py)) {
1.193     nicm      755:                        gc.flags &= ~(GRID_FLAG_FG256|GRID_FLAG_BG256);
                    756:                        gc.flags |= s->sel.cell.flags &
1.38      nicm      757:                            (GRID_FLAG_FG256|GRID_FLAG_BG256);
1.193     nicm      758:                }
                    759:                tty_cell(tty, &gc, wp);
1.1       nicm      760:        }
                    761:
1.181     nicm      762:        if (sx < tty->sx) {
                    763:                tty_attributes(tty, &grid_default_cell, wp);
                    764:
                    765:                tty_cursor(tty, ox + sx, oy + py);
                    766:                if (sx != screen_size_x(s) &&
                    767:                    ox + screen_size_x(s) >= tty->sx &&
                    768:                    tty_term_has(tty->term, TTYC_EL) &&
                    769:                    !tty_fake_bce(tty, wp))
                    770:                        tty_putcode(tty, TTYC_EL);
                    771:                else
                    772:                        tty_repeat_space(tty, screen_size_x(s) - sx);
1.35      nicm      773:        }
1.1       nicm      774:
1.181     nicm      775:        tty->flags = (tty->flags & ~TTY_NOCURSOR) | flags;
1.107     nicm      776:        tty_update_mode(tty, tty->mode, s);
1.15      nicm      777: }
                    778:
1.182     nicm      779: int
                    780: tty_client_ready(struct client *c, struct window_pane *wp)
                    781: {
                    782:        if (c->session == NULL || c->tty.term == NULL)
                    783:                return (0);
                    784:        if (c->flags & CLIENT_SUSPENDED)
                    785:                return (0);
                    786:        if (c->tty.flags & TTY_FREEZE)
                    787:                return (0);
                    788:        if (c->session->curw->window != wp->window)
                    789:                return (0);
                    790:        return (1);
                    791: }
                    792:
1.15      nicm      793: void
1.182     nicm      794: tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *),
                    795:     struct tty_ctx *ctx)
1.15      nicm      796: {
                    797:        struct window_pane      *wp = ctx->wp;
                    798:        struct client           *c;
                    799:
1.75      nicm      800:        /* wp can be NULL if updating the screen but not the terminal. */
1.15      nicm      801:        if (wp == NULL)
                    802:                return;
                    803:
                    804:        if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
                    805:                return;
1.129     nicm      806:        if (!window_pane_visible(wp) || wp->flags & PANE_DROP)
1.15      nicm      807:                return;
                    808:
1.178     nicm      809:        TAILQ_FOREACH(c, &clients, entry) {
1.182     nicm      810:                if (!tty_client_ready(c, wp))
1.15      nicm      811:                        continue;
                    812:
1.139     nicm      813:                ctx->xoff = wp->xoff;
                    814:                ctx->yoff = wp->yoff;
                    815:                if (status_at_line(c) == 0)
                    816:                        ctx->yoff++;
1.113     nicm      817:
1.139     nicm      818:                cmdfn(&c->tty, ctx);
1.1       nicm      819:        }
                    820: }
                    821:
                    822: void
1.24      nicm      823: tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      824: {
1.77      nicm      825:        struct window_pane      *wp = ctx->wp;
1.1       nicm      826:
1.135     nicm      827:        if (!tty_pane_full_width(tty, ctx)) {
1.176     nicm      828:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      829:                return;
                    830:        }
                    831:
1.176     nicm      832:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      833:
1.77      nicm      834:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      835:
1.176     nicm      836:        if (!tty_fake_bce(tty, wp) && (tty_term_has(tty->term, TTYC_ICH) ||
                    837:            tty_term_has(tty->term, TTYC_ICH1)))
1.12      nicm      838:                tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
1.134     nicm      839:        else
1.176     nicm      840:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      841: }
                    842:
                    843: void
1.24      nicm      844: tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      845: {
1.77      nicm      846:        struct window_pane      *wp = ctx->wp;
1.1       nicm      847:
1.176     nicm      848:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, wp) ||
1.26      nicm      849:            (!tty_term_has(tty->term, TTYC_DCH) &&
                    850:            !tty_term_has(tty->term, TTYC_DCH1))) {
1.176     nicm      851:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      852:                return;
                    853:        }
                    854:
1.176     nicm      855:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      856:
1.77      nicm      857:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      858:
1.26      nicm      859:        if (tty_term_has(tty->term, TTYC_DCH) ||
                    860:            tty_term_has(tty->term, TTYC_DCH1))
                    861:                tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
1.146     nicm      862: }
                    863:
                    864: void
                    865: tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx)
                    866: {
                    867:        u_int   i;
                    868:
1.176     nicm      869:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.146     nicm      870:
                    871:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    872:
1.176     nicm      873:        if (tty_term_has(tty->term, TTYC_ECH) && !tty_fake_bce(tty, ctx->wp))
1.146     nicm      874:                tty_putcode1(tty, TTYC_ECH, ctx->num);
                    875:        else {
                    876:                for (i = 0; i < ctx->num; i++)
                    877:                        tty_putc(tty, ' ');
                    878:        }
1.1       nicm      879: }
                    880:
                    881: void
1.24      nicm      882: tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      883: {
1.176     nicm      884:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, ctx->wp) ||
1.77      nicm      885:            !tty_term_has(tty->term, TTYC_CSR) ||
1.72      nicm      886:            !tty_term_has(tty->term, TTYC_IL1)) {
1.14      nicm      887:                tty_redraw_region(tty, ctx);
1.1       nicm      888:                return;
                    889:        }
                    890:
1.176     nicm      891:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.1       nicm      892:
1.77      nicm      893:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                    894:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      895:
1.12      nicm      896:        tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
1.1       nicm      897: }
                    898:
                    899: void
1.24      nicm      900: tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      901: {
1.176     nicm      902:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, ctx->wp) ||
1.72      nicm      903:            !tty_term_has(tty->term, TTYC_CSR) ||
                    904:            !tty_term_has(tty->term, TTYC_DL1)) {
1.14      nicm      905:                tty_redraw_region(tty, ctx);
1.1       nicm      906:                return;
                    907:        }
                    908:
1.176     nicm      909:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.1       nicm      910:
1.77      nicm      911:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                    912:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      913:
1.12      nicm      914:        tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
1.1       nicm      915: }
                    916:
                    917: void
1.24      nicm      918: tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      919: {
1.77      nicm      920:        struct window_pane      *wp = ctx->wp;
1.12      nicm      921:        struct screen           *s = wp->screen;
1.1       nicm      922:
1.176     nicm      923:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      924:
1.77      nicm      925:        tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.41      nicm      926:
1.176     nicm      927:        if (tty_pane_full_width(tty, ctx) && !tty_fake_bce(tty, wp) &&
                    928:            tty_term_has(tty->term, TTYC_EL))
1.1       nicm      929:                tty_putcode(tty, TTYC_EL);
1.133     nicm      930:        else
                    931:                tty_repeat_space(tty, screen_size_x(s));
1.1       nicm      932: }
                    933:
                    934: void
1.24      nicm      935: tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      936: {
1.77      nicm      937:        struct window_pane      *wp = ctx->wp;
1.12      nicm      938:        struct screen           *s = wp->screen;
1.1       nicm      939:
1.176     nicm      940:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm      941:
1.41      nicm      942:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    943:
1.176     nicm      944:        if (tty_pane_full_width(tty, ctx) &&
                    945:            tty_term_has(tty->term, TTYC_EL) && !tty_fake_bce(tty, wp))
1.1       nicm      946:                tty_putcode(tty, TTYC_EL);
1.133     nicm      947:        else
                    948:                tty_repeat_space(tty, screen_size_x(s) - ctx->ocx);
1.1       nicm      949: }
                    950:
                    951: void
1.24      nicm      952: tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      953: {
1.176     nicm      954:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.1       nicm      955:
1.176     nicm      956:        if (ctx->xoff == 0 && tty_term_has(tty->term, TTYC_EL1) &&
                    957:            !tty_fake_bce(tty, ctx->wp)) {
1.41      nicm      958:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      959:                tty_putcode(tty, TTYC_EL1);
                    960:        } else {
1.41      nicm      961:                tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.133     nicm      962:                tty_repeat_space(tty, ctx->ocx + 1);
1.1       nicm      963:        }
                    964: }
                    965:
                    966: void
1.24      nicm      967: tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      968: {
1.56      nicm      969:        if (ctx->ocy != ctx->orupper)
                    970:                return;
                    971:
1.176     nicm      972:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, ctx->wp) ||
1.70      nicm      973:            !tty_term_has(tty->term, TTYC_CSR) ||
                    974:            !tty_term_has(tty->term, TTYC_RI)) {
1.14      nicm      975:                tty_redraw_region(tty, ctx);
1.1       nicm      976:                return;
                    977:        }
                    978:
1.176     nicm      979:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.77      nicm      980:
1.56      nicm      981:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                    982:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
1.77      nicm      983:
1.56      nicm      984:        tty_putcode(tty, TTYC_RI);
1.1       nicm      985: }
                    986:
                    987: void
1.24      nicm      988: tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      989: {
1.77      nicm      990:        struct window_pane      *wp = ctx->wp;
1.1       nicm      991:
1.56      nicm      992:        if (ctx->ocy != ctx->orlower)
                    993:                return;
                    994:
1.176     nicm      995:        if (!tty_pane_full_width(tty, ctx) || tty_fake_bce(tty, wp) ||
1.1       nicm      996:            !tty_term_has(tty->term, TTYC_CSR)) {
1.128     nicm      997:                if (tty_large_region(tty, ctx))
                    998:                        wp->flags |= PANE_REDRAW;
1.140     nicm      999:                else
1.128     nicm     1000:                        tty_redraw_region(tty, ctx);
1.1       nicm     1001:                return;
                   1002:        }
1.52      nicm     1003:
                   1004:        /*
                   1005:         * If this line wrapped naturally (ctx->num is nonzero), don't do
                   1006:         * anything - the cursor can just be moved to the last cell and wrap
                   1007:         * naturally.
                   1008:         */
                   1009:        if (ctx->num && !(tty->term->flags & TERM_EARLYWRAP))
                   1010:                return;
1.1       nicm     1011:
1.176     nicm     1012:        tty_attributes(tty, &grid_default_cell, wp);
1.77      nicm     1013:
1.56      nicm     1014:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                   1015:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.77      nicm     1016:
1.56      nicm     1017:        tty_putc(tty, '\n');
1.1       nicm     1018: }
                   1019:
                   1020: void
1.24      nicm     1021: tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1022: {
1.77      nicm     1023:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1024:        struct screen           *s = wp->screen;
                   1025:        u_int                    i, j;
1.1       nicm     1026:
1.176     nicm     1027:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm     1028:
1.39      nicm     1029:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41      nicm     1030:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.39      nicm     1031:
1.176     nicm     1032:        if (tty_pane_full_width(tty, ctx) &&
                   1033:            tty_term_has(tty->term, TTYC_EL) && !tty_fake_bce(tty, wp)) {
1.1       nicm     1034:                tty_putcode(tty, TTYC_EL);
1.14      nicm     1035:                if (ctx->ocy != screen_size_y(s) - 1) {
1.41      nicm     1036:                        tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
1.14      nicm     1037:                        for (i = ctx->ocy + 1; i < screen_size_y(s); i++) {
1.1       nicm     1038:                                tty_putcode(tty, TTYC_EL);
                   1039:                                if (i == screen_size_y(s) - 1)
                   1040:                                        continue;
                   1041:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1042:                                tty->cy++;
                   1043:                        }
                   1044:                }
                   1045:        } else {
1.133     nicm     1046:                tty_repeat_space(tty, screen_size_x(s) - ctx->ocx);
1.68      nicm     1047:                for (j = ctx->ocy + 1; j < screen_size_y(s); j++) {
1.41      nicm     1048:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm     1049:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm     1050:                }
                   1051:        }
                   1052: }
                   1053:
                   1054: void
1.24      nicm     1055: tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1056: {
1.77      nicm     1057:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1058:        struct screen           *s = wp->screen;
                   1059:        u_int                    i, j;
1.1       nicm     1060:
1.176     nicm     1061:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm     1062:
1.39      nicm     1063:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41      nicm     1064:        tty_cursor_pane(tty, ctx, 0, 0);
1.39      nicm     1065:
1.176     nicm     1066:        if (tty_pane_full_width(tty, ctx) &&
                   1067:            tty_term_has(tty->term, TTYC_EL) && !tty_fake_bce(tty, wp)) {
1.14      nicm     1068:                for (i = 0; i < ctx->ocy; i++) {
1.1       nicm     1069:                        tty_putcode(tty, TTYC_EL);
                   1070:                        tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1071:                        tty->cy++;
                   1072:                }
                   1073:        } else {
1.14      nicm     1074:                for (j = 0; j < ctx->ocy; j++) {
1.41      nicm     1075:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm     1076:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm     1077:                }
                   1078:        }
1.133     nicm     1079:        tty_repeat_space(tty, ctx->ocx + 1);
1.1       nicm     1080: }
                   1081:
                   1082: void
1.24      nicm     1083: tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1084: {
1.77      nicm     1085:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1086:        struct screen           *s = wp->screen;
                   1087:        u_int                    i, j;
1.1       nicm     1088:
1.176     nicm     1089:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm     1090:
1.39      nicm     1091:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.41      nicm     1092:        tty_cursor_pane(tty, ctx, 0, 0);
1.39      nicm     1093:
1.176     nicm     1094:        if (tty_pane_full_width(tty, ctx) &&
                   1095:            tty_term_has(tty->term, TTYC_EL) && !tty_fake_bce(tty, wp)) {
1.1       nicm     1096:                for (i = 0; i < screen_size_y(s); i++) {
                   1097:                        tty_putcode(tty, TTYC_EL);
                   1098:                        if (i != screen_size_y(s) - 1) {
                   1099:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1100:                                tty->cy++;
                   1101:                        }
                   1102:                }
                   1103:        } else {
                   1104:                for (j = 0; j < screen_size_y(s); j++) {
1.41      nicm     1105:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm     1106:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm     1107:                }
1.4       nicm     1108:        }
                   1109: }
                   1110:
                   1111: void
1.24      nicm     1112: tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
1.4       nicm     1113: {
1.12      nicm     1114:        struct window_pane      *wp = ctx->wp;
                   1115:        struct screen           *s = wp->screen;
                   1116:        u_int                    i, j;
1.4       nicm     1117:
1.176     nicm     1118:        tty_attributes(tty, &grid_default_cell, wp);
1.4       nicm     1119:
1.39      nicm     1120:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.4       nicm     1121:
                   1122:        for (j = 0; j < screen_size_y(s); j++) {
1.41      nicm     1123:                tty_cursor_pane(tty, ctx, 0, j);
1.4       nicm     1124:                for (i = 0; i < screen_size_x(s); i++)
                   1125:                        tty_putc(tty, 'E');
1.1       nicm     1126:        }
                   1127: }
                   1128:
                   1129: void
1.24      nicm     1130: tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1131: {
1.46      nicm     1132:        struct window_pane      *wp = ctx->wp;
                   1133:        struct screen           *s = wp->screen;
1.58      nicm     1134:        u_int                    cx;
1.102     nicm     1135:        u_int                    width;
1.46      nicm     1136:
                   1137:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
                   1138:
1.57      nicm     1139:        /* Is the cursor in the very last position? */
1.193     nicm     1140:        width = ctx->cell->data.width;
1.102     nicm     1141:        if (ctx->ocx > wp->sx - width) {
1.113     nicm     1142:                if (ctx->xoff != 0 || wp->sx != tty->sx) {
1.57      nicm     1143:                        /*
                   1144:                         * The pane doesn't fill the entire line, the linefeed
                   1145:                         * will already have happened, so just move the cursor.
                   1146:                         */
1.125     nicm     1147:                        if (ctx->ocy != wp->yoff + wp->screen->rlower)
1.122     nicm     1148:                                tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
                   1149:                        else
                   1150:                                tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.57      nicm     1151:                } else if (tty->cx < tty->sx) {
                   1152:                        /*
                   1153:                         * The cursor isn't in the last position already, so
1.102     nicm     1154:                         * move as far left as possible and redraw the last
1.57      nicm     1155:                         * cell to move into the last position.
                   1156:                         */
1.193     nicm     1157:                        cx = screen_size_x(s) - ctx->last_cell.data.width;
1.50      nicm     1158:                        tty_cursor_pane(tty, ctx, cx, ctx->ocy);
1.176     nicm     1159:                        tty_cell(tty, &ctx->last_cell, wp);
1.50      nicm     1160:                }
                   1161:        } else
1.46      nicm     1162:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm     1163:
1.176     nicm     1164:        tty_cell(tty, ctx->cell, wp);
1.1       nicm     1165: }
                   1166:
                   1167: void
1.24      nicm     1168: tty_cmd_utf8character(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1169: {
1.53      nicm     1170:        struct window_pane      *wp = ctx->wp;
1.1       nicm     1171:
1.53      nicm     1172:        /*
                   1173:         * Cannot rely on not being a partial character, so just redraw the
                   1174:         * whole line.
                   1175:         */
1.176     nicm     1176:        tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.106     nicm     1177: }
                   1178:
                   1179: void
                   1180: tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx)
                   1181: {
                   1182:        char    *buf;
                   1183:        size_t   off;
                   1184:
                   1185:        if (!tty_term_has(tty->term, TTYC_MS))
                   1186:                return;
                   1187:
                   1188:        off = 4 * ((ctx->num + 2) / 3) + 1; /* storage for base64 */
                   1189:        buf = xmalloc(off);
                   1190:
                   1191:        b64_ntop(ctx->ptr, ctx->num, buf, off);
                   1192:        tty_putcode_ptr2(tty, TTYC_MS, "", buf);
                   1193:
1.138     nicm     1194:        free(buf);
1.100     nicm     1195: }
                   1196:
                   1197: void
                   1198: tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
                   1199: {
                   1200:        u_int    i;
                   1201:        u_char  *str = ctx->ptr;
                   1202:
                   1203:        for (i = 0; i < ctx->num; i++)
                   1204:                tty_putc(tty, str[i]);
1.141     nicm     1205:
                   1206:        tty->cx = tty->cy = UINT_MAX;
                   1207:        tty->rupper = tty->rlower = UINT_MAX;
                   1208:
1.176     nicm     1209:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.141     nicm     1210:        tty_cursor(tty, 0, 0);
1.1       nicm     1211: }
                   1212:
                   1213: void
1.176     nicm     1214: tty_cell(struct tty *tty, const struct grid_cell *gc,
                   1215:     const struct window_pane *wp)
1.1       nicm     1216: {
1.193     nicm     1217:        u_int   i;
1.1       nicm     1218:
                   1219:        /* Skip last character if terminal is stupid. */
                   1220:        if (tty->term->flags & TERM_EARLYWRAP &&
                   1221:            tty->cy == tty->sy - 1 && tty->cx == tty->sx - 1)
                   1222:                return;
                   1223:
                   1224:        /* If this is a padding character, do nothing. */
                   1225:        if (gc->flags & GRID_FLAG_PADDING)
                   1226:                return;
                   1227:
                   1228:        /* Set the attributes. */
1.176     nicm     1229:        tty_attributes(tty, gc, wp);
1.1       nicm     1230:
1.147     nicm     1231:        /* Get the cell and if ASCII write with putc to do ACS translation. */
1.193     nicm     1232:        if (gc->data.size == 1) {
                   1233:                if (*gc->data.data < 0x20 || *gc->data.data == 0x7f)
1.1       nicm     1234:                        return;
1.193     nicm     1235:                tty_putc(tty, *gc->data.data);
1.1       nicm     1236:                return;
                   1237:        }
                   1238:
1.147     nicm     1239:        /* If not UTF-8, write _. */
1.1       nicm     1240:        if (!(tty->flags & TTY_UTF8)) {
1.193     nicm     1241:                for (i = 0; i < gc->data.width; i++)
1.1       nicm     1242:                        tty_putc(tty, '_');
                   1243:                return;
                   1244:        }
                   1245:
1.147     nicm     1246:        /* Write the data. */
1.193     nicm     1247:        tty_putn(tty, gc->data.data, gc->data.size, gc->data.width);
1.1       nicm     1248: }
                   1249:
                   1250: void
                   1251: tty_reset(struct tty *tty)
                   1252: {
                   1253:        struct grid_cell        *gc = &tty->cell;
                   1254:
                   1255:        if (memcmp(gc, &grid_default_cell, sizeof *gc) == 0)
                   1256:                return;
                   1257:
1.90      nicm     1258:        if ((gc->attr & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1.1       nicm     1259:                tty_putcode(tty, TTYC_RMACS);
                   1260:        tty_putcode(tty, TTYC_SGR0);
                   1261:        memcpy(gc, &grid_default_cell, sizeof *gc);
                   1262: }
                   1263:
1.40      nicm     1264: /* Set region inside pane. */
1.1       nicm     1265: void
1.196     nicm     1266: tty_region_pane(struct tty *tty, const struct tty_ctx *ctx, u_int rupper,
                   1267:     u_int rlower)
1.1       nicm     1268: {
1.113     nicm     1269:        tty_region(tty, ctx->yoff + rupper, ctx->yoff + rlower);
1.39      nicm     1270: }
                   1271:
1.40      nicm     1272: /* Set region at absolute position. */
1.39      nicm     1273: void
1.40      nicm     1274: tty_region(struct tty *tty, u_int rupper, u_int rlower)
1.39      nicm     1275: {
                   1276:        if (tty->rlower == rlower && tty->rupper == rupper)
                   1277:                return;
1.1       nicm     1278:        if (!tty_term_has(tty->term, TTYC_CSR))
                   1279:                return;
1.39      nicm     1280:
                   1281:        tty->rupper = rupper;
                   1282:        tty->rlower = rlower;
1.55      nicm     1283:
                   1284:        /*
                   1285:         * Some terminals (such as PuTTY) do not correctly reset the cursor to
                   1286:         * 0,0 if it is beyond the last column (they do not reset their wrap
                   1287:         * flag so further output causes a line feed). As a workaround, do an
                   1288:         * explicit move to 0 first.
                   1289:         */
                   1290:        if (tty->cx >= tty->sx)
                   1291:                tty_cursor(tty, 0, tty->cy);
1.42      nicm     1292:
1.39      nicm     1293:        tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1.78      nicm     1294:        tty_cursor(tty, 0, 0);
1.1       nicm     1295: }
                   1296:
1.42      nicm     1297: /* Move cursor inside pane. */
1.1       nicm     1298: void
1.41      nicm     1299: tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
                   1300: {
1.113     nicm     1301:        tty_cursor(tty, ctx->xoff + cx, ctx->yoff + cy);
1.41      nicm     1302: }
                   1303:
1.42      nicm     1304: /* Move cursor to absolute position. */
1.41      nicm     1305: void
                   1306: tty_cursor(struct tty *tty, u_int cx, u_int cy)
1.1       nicm     1307: {
1.42      nicm     1308:        struct tty_term *term = tty->term;
                   1309:        u_int            thisx, thisy;
                   1310:        int              change;
1.77      nicm     1311:
1.42      nicm     1312:        if (cx > tty->sx - 1)
                   1313:                cx = tty->sx - 1;
                   1314:
                   1315:        thisx = tty->cx;
                   1316:        thisy = tty->cy;
                   1317:
                   1318:        /* No change. */
                   1319:        if (cx == thisx && cy == thisy)
                   1320:                return;
                   1321:
1.43      nicm     1322:        /* Very end of the line, just use absolute movement. */
                   1323:        if (thisx > tty->sx - 1)
                   1324:                goto absolute;
                   1325:
1.42      nicm     1326:        /* Move to home position (0, 0). */
                   1327:        if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
                   1328:                tty_putcode(tty, TTYC_HOME);
                   1329:                goto out;
                   1330:        }
                   1331:
                   1332:        /* Zero on the next line. */
1.48      nicm     1333:        if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower) {
1.1       nicm     1334:                tty_putc(tty, '\r');
1.42      nicm     1335:                tty_putc(tty, '\n');
                   1336:                goto out;
                   1337:        }
                   1338:
1.45      nicm     1339:        /* Moving column or row. */
1.42      nicm     1340:        if (cy == thisy) {
1.45      nicm     1341:                /*
                   1342:                 * Moving column only, row staying the same.
                   1343:                 */
                   1344:
1.42      nicm     1345:                /* To left edge. */
                   1346:                if (cx == 0)    {
                   1347:                        tty_putc(tty, '\r');
                   1348:                        goto out;
                   1349:                }
                   1350:
                   1351:                /* One to the left. */
                   1352:                if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) {
                   1353:                        tty_putcode(tty, TTYC_CUB1);
                   1354:                        goto out;
                   1355:                }
                   1356:
                   1357:                /* One to the right. */
                   1358:                if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) {
                   1359:                        tty_putcode(tty, TTYC_CUF1);
                   1360:                        goto out;
                   1361:                }
                   1362:
                   1363:                /* Calculate difference. */
                   1364:                change = thisx - cx;    /* +ve left, -ve right */
                   1365:
                   1366:                /*
                   1367:                 * Use HPA if change is larger than absolute, otherwise move
                   1368:                 * the cursor with CUB/CUF.
                   1369:                 */
1.87      nicm     1370:                if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) {
1.42      nicm     1371:                        tty_putcode1(tty, TTYC_HPA, cx);
                   1372:                        goto out;
                   1373:                } else if (change > 0 && tty_term_has(term, TTYC_CUB)) {
                   1374:                        tty_putcode1(tty, TTYC_CUB, change);
                   1375:                        goto out;
                   1376:                } else if (change < 0 && tty_term_has(term, TTYC_CUF)) {
                   1377:                        tty_putcode1(tty, TTYC_CUF, -change);
                   1378:                        goto out;
                   1379:                }
1.45      nicm     1380:        } else if (cx == thisx) {
                   1381:                /*
                   1382:                 * Moving row only, column staying the same.
                   1383:                 */
1.42      nicm     1384:
                   1385:                /* One above. */
1.77      nicm     1386:                if (thisy != tty->rupper &&
1.42      nicm     1387:                    cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) {
                   1388:                        tty_putcode(tty, TTYC_CUU1);
                   1389:                        goto out;
                   1390:                }
                   1391:
                   1392:                /* One below. */
1.49      nicm     1393:                if (thisy != tty->rlower &&
1.42      nicm     1394:                    cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) {
                   1395:                        tty_putcode(tty, TTYC_CUD1);
                   1396:                        goto out;
                   1397:                }
                   1398:
                   1399:                /* Calculate difference. */
                   1400:                change = thisy - cy;    /* +ve up, -ve down */
                   1401:
                   1402:                /*
1.77      nicm     1403:                 * Try to use VPA if change is larger than absolute or if this
                   1404:                 * change would cross the scroll region, otherwise use CUU/CUD.
1.42      nicm     1405:                 */
1.87      nicm     1406:                if ((u_int) abs(change) > cy ||
1.42      nicm     1407:                    (change < 0 && cy - change > tty->rlower) ||
1.44      nicm     1408:                    (change > 0 && cy - change < tty->rupper)) {
                   1409:                            if (tty_term_has(term, TTYC_VPA)) {
                   1410:                                    tty_putcode1(tty, TTYC_VPA, cy);
                   1411:                                    goto out;
                   1412:                            }
1.42      nicm     1413:                } else if (change > 0 && tty_term_has(term, TTYC_CUU)) {
                   1414:                        tty_putcode1(tty, TTYC_CUU, change);
                   1415:                        goto out;
                   1416:                } else if (change < 0 && tty_term_has(term, TTYC_CUD)) {
                   1417:                        tty_putcode1(tty, TTYC_CUD, -change);
                   1418:                        goto out;
                   1419:                }
                   1420:        }
                   1421:
1.43      nicm     1422: absolute:
1.42      nicm     1423:        /* Absolute movement. */
                   1424:        tty_putcode2(tty, TTYC_CUP, cy, cx);
                   1425:
                   1426: out:
                   1427:        tty->cx = cx;
                   1428:        tty->cy = cy;
1.1       nicm     1429: }
                   1430:
                   1431: void
1.176     nicm     1432: tty_attributes(struct tty *tty, const struct grid_cell *gc,
                   1433:     const struct window_pane *wp)
1.1       nicm     1434: {
1.63      nicm     1435:        struct grid_cell        *tc = &tty->cell, gc2;
1.85      nicm     1436:        u_char                   changed;
1.61      nicm     1437:
1.85      nicm     1438:        memcpy(&gc2, gc, sizeof gc2);
1.176     nicm     1439:        tty_default_colours(&gc2, wp);
1.63      nicm     1440:
1.18      nicm     1441:        /*
                   1442:         * If no setab, try to use the reverse attribute as a best-effort for a
                   1443:         * non-default background. This is a bit of a hack but it doesn't do
                   1444:         * any serious harm and makes a couple of applications happier.
                   1445:         */
                   1446:        if (!tty_term_has(tty->term, TTYC_SETAB)) {
1.85      nicm     1447:                if (gc2.attr & GRID_ATTR_REVERSE) {
                   1448:                        if (gc2.fg != 7 && gc2.fg != 8)
1.64      nicm     1449:                                gc2.attr &= ~GRID_ATTR_REVERSE;
1.18      nicm     1450:                } else {
1.85      nicm     1451:                        if (gc2.bg != 0 && gc2.bg != 8)
1.64      nicm     1452:                                gc2.attr |= GRID_ATTR_REVERSE;
1.18      nicm     1453:                }
                   1454:        }
1.1       nicm     1455:
1.85      nicm     1456:        /* Fix up the colours if necessary. */
                   1457:        tty_check_fg(tty, &gc2);
                   1458:        tty_check_bg(tty, &gc2);
                   1459:
1.64      nicm     1460:        /* If any bits are being cleared, reset everything. */
1.85      nicm     1461:        if (tc->attr & ~gc2.attr)
1.64      nicm     1462:                tty_reset(tty);
                   1463:
                   1464:        /*
                   1465:         * Set the colours. This may call tty_reset() (so it comes next) and
                   1466:         * may add to (NOT remove) the desired attributes by changing new_attr.
                   1467:         */
1.85      nicm     1468:        tty_colours(tty, &gc2);
1.64      nicm     1469:
1.1       nicm     1470:        /* Filter out attribute bits already set. */
1.85      nicm     1471:        changed = gc2.attr & ~tc->attr;
                   1472:        tc->attr = gc2.attr;
1.1       nicm     1473:
                   1474:        /* Set the attributes. */
                   1475:        if (changed & GRID_ATTR_BRIGHT)
                   1476:                tty_putcode(tty, TTYC_BOLD);
                   1477:        if (changed & GRID_ATTR_DIM)
                   1478:                tty_putcode(tty, TTYC_DIM);
1.180     nicm     1479:        if (changed & GRID_ATTR_ITALICS)
                   1480:                tty_set_italics(tty);
1.1       nicm     1481:        if (changed & GRID_ATTR_UNDERSCORE)
                   1482:                tty_putcode(tty, TTYC_SMUL);
                   1483:        if (changed & GRID_ATTR_BLINK)
                   1484:                tty_putcode(tty, TTYC_BLINK);
                   1485:        if (changed & GRID_ATTR_REVERSE) {
                   1486:                if (tty_term_has(tty->term, TTYC_REV))
                   1487:                        tty_putcode(tty, TTYC_REV);
                   1488:                else if (tty_term_has(tty->term, TTYC_SMSO))
                   1489:                        tty_putcode(tty, TTYC_SMSO);
                   1490:        }
                   1491:        if (changed & GRID_ATTR_HIDDEN)
                   1492:                tty_putcode(tty, TTYC_INVIS);
1.90      nicm     1493:        if ((changed & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1.1       nicm     1494:                tty_putcode(tty, TTYC_SMACS);
                   1495: }
                   1496:
1.61      nicm     1497: void
1.85      nicm     1498: tty_colours(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1499: {
1.61      nicm     1500:        struct grid_cell        *tc = &tty->cell;
1.62      nicm     1501:        int                      have_ax, fg_default, bg_default;
1.61      nicm     1502:
                   1503:        /* No changes? Nothing is necessary. */
1.199     nicm     1504:        if (tty_same_colours(gc, tc))
1.63      nicm     1505:                return;
1.1       nicm     1506:
1.61      nicm     1507:        /*
                   1508:         * Is either the default colour? This is handled specially because the
                   1509:         * best solution might be to reset both colours to default, in which
                   1510:         * case if only one is default need to fall onward to set the other
                   1511:         * colour.
                   1512:         */
1.199     nicm     1513:        fg_default = tty_is_fg(gc, 8);
                   1514:        bg_default = tty_is_bg(gc, 8);
1.61      nicm     1515:        if (fg_default || bg_default) {
                   1516:                /*
                   1517:                 * If don't have AX but do have op, send sgr0 (op can't
                   1518:                 * actually be used because it is sometimes the same as sgr0
                   1519:                 * and sometimes isn't). This resets both colours to default.
                   1520:                 *
                   1521:                 * Otherwise, try to set the default colour only as needed.
                   1522:                 */
1.174     nicm     1523:                have_ax = tty_term_flag(tty->term, TTYC_AX);
1.61      nicm     1524:                if (!have_ax && tty_term_has(tty->term, TTYC_OP))
                   1525:                        tty_reset(tty);
                   1526:                else {
1.199     nicm     1527:                        if (fg_default && !tty_is_fg(tc, 8)) {
1.61      nicm     1528:                                if (have_ax)
                   1529:                                        tty_puts(tty, "\033[39m");
1.199     nicm     1530:                                else if (!tty_is_fg(tc, 7))
1.61      nicm     1531:                                        tty_putcode1(tty, TTYC_SETAF, 7);
                   1532:                                tc->fg = 8;
1.199     nicm     1533:                                tc->flags &= ~(GRID_FLAG_FG256|GRID_FLAG_FGRGB);
1.61      nicm     1534:                        }
1.199     nicm     1535:                        if (bg_default && !tty_is_bg(tc, 8)) {
1.77      nicm     1536:                                if (have_ax)
1.61      nicm     1537:                                        tty_puts(tty, "\033[49m");
1.199     nicm     1538:                                else if (!tty_is_bg(tc, 0))
1.61      nicm     1539:                                        tty_putcode1(tty, TTYC_SETAB, 0);
                   1540:                                tc->bg = 8;
1.199     nicm     1541:                                tc->flags &= ~(GRID_FLAG_BG256|GRID_FLAG_BGRGB);
1.61      nicm     1542:                        }
                   1543:                }
                   1544:        }
1.1       nicm     1545:
1.61      nicm     1546:        /* Set the foreground colour. */
1.199     nicm     1547:        if (!fg_default && !tty_same_fg(gc, tc))
1.85      nicm     1548:                tty_colours_fg(tty, gc);
1.1       nicm     1549:
1.61      nicm     1550:        /*
                   1551:         * Set the background colour. This must come after the foreground as
                   1552:         * tty_colour_fg() can call tty_reset().
                   1553:         */
1.199     nicm     1554:        if (!bg_default && !tty_same_bg(gc, tc))
1.73      nicm     1555:                tty_colours_bg(tty, gc);
1.1       nicm     1556: }
                   1557:
                   1558: void
1.85      nicm     1559: tty_check_fg(struct tty *tty, struct grid_cell *gc)
                   1560: {
1.199     nicm     1561:        struct grid_cell_rgb    *rgb = &gc->fg_rgb;
                   1562:        u_int                    colours;
1.85      nicm     1563:
1.199     nicm     1564:        /* Is this a 24-bit colour? */
                   1565:        if (gc->flags & GRID_FLAG_FGRGB) {
                   1566:                /* Not a 24-bit terminal? Translate to 256-colour palette. */
                   1567:                if (!tty_term_flag(tty->term, TTYC_TC)) {
                   1568:                        gc->flags &= ~GRID_FLAG_FGRGB;
                   1569:                        gc->flags |= GRID_FLAG_FG256;
                   1570:                        gc->fg = colour_find_rgb(rgb->r, rgb->g, rgb->b);
                   1571:                }
1.200   ! nicm     1572:                else
        !          1573:                        return;
1.199     nicm     1574:        }
1.175     nicm     1575:        colours = tty_term_number(tty->term, TTYC_COLORS);
                   1576:
1.85      nicm     1577:        /* Is this a 256-colour colour? */
                   1578:        if (gc->flags & GRID_FLAG_FG256) {
                   1579:                /* And not a 256 colour mode? */
1.158     nicm     1580:                if (!(tty->term->flags & TERM_256COLOURS) &&
1.85      nicm     1581:                    !(tty->term_flags & TERM_256COLOURS)) {
                   1582:                        gc->fg = colour_256to16(gc->fg);
                   1583:                        if (gc->fg & 8) {
                   1584:                                gc->fg &= 7;
1.175     nicm     1585:                                if (colours >= 16)
                   1586:                                        gc->fg += 90;
                   1587:                                else
                   1588:                                        gc->attr |= GRID_ATTR_BRIGHT;
1.85      nicm     1589:                        } else
                   1590:                                gc->attr &= ~GRID_ATTR_BRIGHT;
                   1591:                        gc->flags &= ~GRID_FLAG_FG256;
                   1592:                }
                   1593:                return;
                   1594:        }
                   1595:
                   1596:        /* Is this an aixterm colour? */
                   1597:        if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) {
                   1598:                gc->fg -= 90;
                   1599:                gc->attr |= GRID_ATTR_BRIGHT;
                   1600:        }
                   1601: }
                   1602:
                   1603: void
                   1604: tty_check_bg(struct tty *tty, struct grid_cell *gc)
                   1605: {
1.199     nicm     1606:        struct grid_cell_rgb    *rgb = &gc->bg_rgb;
                   1607:        u_int                    colours;
1.85      nicm     1608:
1.199     nicm     1609:        /* Is this a 24-bit colour? */
                   1610:        if (gc->flags & GRID_FLAG_BGRGB) {
                   1611:                /* Not a 24-bit terminal? Translate to 256-colour palette. */
                   1612:                if (!tty_term_flag(tty->term, TTYC_TC)) {
                   1613:                        gc->flags &= ~GRID_FLAG_BGRGB;
                   1614:                        gc->flags |= GRID_FLAG_BG256;
                   1615:                        gc->bg = colour_find_rgb(rgb->r, rgb->g, rgb->b);
                   1616:                }
1.200   ! nicm     1617:                else
        !          1618:                        return;
1.199     nicm     1619:        }
1.175     nicm     1620:        colours = tty_term_number(tty->term, TTYC_COLORS);
                   1621:
1.85      nicm     1622:        /* Is this a 256-colour colour? */
                   1623:        if (gc->flags & GRID_FLAG_BG256) {
                   1624:                /*
                   1625:                 * And not a 256 colour mode? Translate to 16-colour
                   1626:                 * palette. Bold background doesn't exist portably, so just
                   1627:                 * discard the bold bit if set.
                   1628:                 */
1.158     nicm     1629:                if (!(tty->term->flags & TERM_256COLOURS) &&
1.85      nicm     1630:                    !(tty->term_flags & TERM_256COLOURS)) {
                   1631:                        gc->bg = colour_256to16(gc->bg);
1.175     nicm     1632:                        if (gc->bg & 8) {
1.85      nicm     1633:                                gc->bg &= 7;
1.175     nicm     1634:                                if (colours >= 16)
                   1635:                                        gc->fg += 90;
                   1636:                        }
1.85      nicm     1637:                        gc->flags &= ~GRID_FLAG_BG256;
                   1638:                }
                   1639:                return;
                   1640:        }
                   1641:
                   1642:        /* Is this an aixterm colour? */
1.175     nicm     1643:        if (gc->bg >= 90 && gc->bg <= 97 && colours < 16)
1.85      nicm     1644:                gc->bg -= 90;
                   1645: }
                   1646:
                   1647: void
                   1648: tty_colours_fg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1649: {
1.61      nicm     1650:        struct grid_cell        *tc = &tty->cell;
                   1651:        u_char                   fg = gc->fg;
1.79      nicm     1652:        char                     s[32];
1.1       nicm     1653:
1.199     nicm     1654:        tc->flags &= ~(GRID_FLAG_FG256|GRID_FLAG_FGRGB);
                   1655:
                   1656:        /* Is this a 24-bit colour? */
                   1657:        if (gc->flags & GRID_FLAG_FGRGB) {
                   1658:                if (tty_try_rgb(tty, &gc->fg_rgb, "38") == 0)
                   1659:                        goto save_fg;
                   1660:                /* Should not get here, already converted in tty_check_fg. */
                   1661:                return;
                   1662:        }
                   1663:
1.61      nicm     1664:        /* Is this a 256-colour colour? */
1.1       nicm     1665:        if (gc->flags & GRID_FLAG_FG256) {
                   1666:                if (tty_try_256(tty, fg, "38") == 0)
1.61      nicm     1667:                        goto save_fg;
1.199     nicm     1668:                /* Should not get here, already converted in tty_check_fg. */
1.85      nicm     1669:                return;
1.1       nicm     1670:        }
                   1671:
1.79      nicm     1672:        /* Is this an aixterm bright colour? */
                   1673:        if (fg >= 90 && fg <= 97) {
1.85      nicm     1674:                xsnprintf(s, sizeof s, "\033[%dm", fg);
                   1675:                tty_puts(tty, s);
                   1676:                goto save_fg;
1.79      nicm     1677:        }
                   1678:
1.61      nicm     1679:        /* Otherwise set the foreground colour. */
                   1680:        tty_putcode1(tty, TTYC_SETAF, fg);
                   1681:
1.77      nicm     1682: save_fg:
1.61      nicm     1683:        /* Save the new values in the terminal current cell. */
1.199     nicm     1684:        if (gc->flags & GRID_FLAG_FGRGB)
                   1685:                memcpy(&tc->fg_rgb, &gc->fg_rgb, sizeof tc->fg_rgb);
                   1686:        else
                   1687:                tc->fg = fg;
                   1688:        tc->flags &= ~(GRID_FLAG_FGRGB|GRID_FLAG_FG256);
                   1689:        tc->flags |= (gc->flags & (GRID_FLAG_FG256|GRID_FLAG_FGRGB));
1.1       nicm     1690: }
                   1691:
                   1692: void
1.73      nicm     1693: tty_colours_bg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1694: {
1.61      nicm     1695:        struct grid_cell        *tc = &tty->cell;
                   1696:        u_char                   bg = gc->bg;
1.79      nicm     1697:        char                     s[32];
1.1       nicm     1698:
1.199     nicm     1699:        /* Is this a 24-bit colour? */
                   1700:        if (gc->flags & GRID_FLAG_BGRGB) {
                   1701:                if (tty_try_rgb(tty, &gc->bg_rgb, "48") == 0)
                   1702:                        goto save_bg;
                   1703:                /* Should not get here, already converted in tty_check_bg. */
                   1704:                return;
                   1705:        }
                   1706:
1.61      nicm     1707:        /* Is this a 256-colour colour? */
1.1       nicm     1708:        if (gc->flags & GRID_FLAG_BG256) {
                   1709:                if (tty_try_256(tty, bg, "48") == 0)
1.61      nicm     1710:                        goto save_bg;
1.199     nicm     1711:                /* Should not get here, already converted in tty_check_bg. */
1.85      nicm     1712:                return;
1.79      nicm     1713:        }
                   1714:
                   1715:        /* Is this an aixterm bright colour? */
1.112     nicm     1716:        if (bg >= 90 && bg <= 97) {
1.175     nicm     1717:                xsnprintf(s, sizeof s, "\033[%dm", bg + 10);
                   1718:                tty_puts(tty, s);
                   1719:                goto save_bg;
1.1       nicm     1720:        }
                   1721:
1.61      nicm     1722:        /* Otherwise set the background colour. */
                   1723:        tty_putcode1(tty, TTYC_SETAB, bg);
                   1724:
                   1725: save_bg:
                   1726:        /* Save the new values in the terminal current cell. */
1.199     nicm     1727:        if (gc->flags & GRID_FLAG_BGRGB)
                   1728:                memcpy(&tc->bg_rgb, &gc->bg_rgb, sizeof tc->bg_rgb);
                   1729:        else
                   1730:                tc->bg = bg;
                   1731:        tc->flags &= ~(GRID_FLAG_BGRGB|GRID_FLAG_BG256);
                   1732:        tc->flags |= (gc->flags & (GRID_FLAG_BG256|GRID_FLAG_BGRGB));
1.61      nicm     1733: }
                   1734:
                   1735: int
                   1736: tty_try_256(struct tty *tty, u_char colour, const char *type)
                   1737: {
                   1738:        char    s[32];
                   1739:
1.165     nicm     1740:        /*
1.189     nicm     1741:         * If the user has specified -2 to the client, setaf and setab may not
                   1742:         * work (or they may not want to use them), so send the usual sequence.
                   1743:         */
                   1744:        if (tty->term_flags & TERM_256COLOURS)
                   1745:                goto fallback;
                   1746:
                   1747:        /*
1.188     nicm     1748:         * If the terminfo entry has 256 colours and setaf and setab exist,
                   1749:         * assume that they work correctly.
1.165     nicm     1750:         */
                   1751:        if (tty->term->flags & TERM_256COLOURS) {
1.188     nicm     1752:                if (*type == '3') {
                   1753:                        if (!tty_term_has(tty->term, TTYC_SETAF))
                   1754:                                goto fallback;
1.165     nicm     1755:                        tty_putcode1(tty, TTYC_SETAF, colour);
1.188     nicm     1756:                } else {
                   1757:                        if (!tty_term_has(tty->term, TTYC_SETAB))
                   1758:                                goto fallback;
1.165     nicm     1759:                        tty_putcode1(tty, TTYC_SETAB, colour);
1.188     nicm     1760:                }
1.165     nicm     1761:                return (0);
                   1762:        }
1.61      nicm     1763:
1.165     nicm     1764:        return (-1);
1.188     nicm     1765:
                   1766: fallback:
                   1767:        xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour);
1.199     nicm     1768:        tty_puts(tty, s);
                   1769:        return (0);
                   1770: }
                   1771:
                   1772: int
                   1773: tty_try_rgb(struct tty *tty, const struct grid_cell_rgb *rgb, const char *type)
                   1774: {
                   1775:        char    s[32];
                   1776:
                   1777:        if (!tty_term_flag(tty->term, TTYC_TC))
                   1778:                return (-1);
                   1779:
                   1780:        xsnprintf(s, sizeof s, "\033[%s;2;%hhu;%hhu;%hhum", type, rgb->r,
                   1781:            rgb->g, rgb->b);
1.188     nicm     1782:        tty_puts(tty, s);
                   1783:        return (0);
1.176     nicm     1784: }
                   1785:
                   1786: void
                   1787: tty_default_colours(struct grid_cell *gc, const struct window_pane *wp)
                   1788: {
                   1789:        const struct grid_cell        *agc, *pgc, *wgc;
                   1790:
                   1791:        if (wp == NULL)
                   1792:                return;
                   1793:
                   1794:        pgc = &wp->colgc;
1.191     nicm     1795:        agc = options_get_style(wp->window->options, "window-active-style");
                   1796:        wgc = options_get_style(wp->window->options, "window-style");
1.176     nicm     1797:
                   1798:        if (gc->fg == 8 && !(gc->flags & GRID_FLAG_FG256)) {
                   1799:                if (pgc->fg != 8 || (pgc->flags & GRID_FLAG_FG256)) {
                   1800:                        gc->fg = pgc->fg;
                   1801:                        gc->flags |= (pgc->flags & GRID_FLAG_FG256);
                   1802:                } else if (wp == wp->window->active &&
                   1803:                    (agc->fg != 8 || (agc->flags & GRID_FLAG_FG256))) {
                   1804:                        gc->fg = agc->fg;
                   1805:                        gc->flags |= (agc->flags & GRID_FLAG_FG256);
                   1806:                } else {
                   1807:                        gc->fg = wgc->fg;
                   1808:                        gc->flags |= (wgc->flags & GRID_FLAG_FG256);
                   1809:                }
                   1810:        }
                   1811:
                   1812:        if (gc->bg == 8 && !(gc->flags & GRID_FLAG_BG256)) {
                   1813:                if (pgc->bg != 8 || (pgc->flags & GRID_FLAG_BG256)) {
                   1814:                        gc->bg = pgc->bg;
                   1815:                        gc->flags |= (pgc->flags & GRID_FLAG_BG256);
                   1816:                } else if (wp == wp->window->active &&
                   1817:                    (agc->bg != 8 || (agc->flags & GRID_FLAG_BG256))) {
                   1818:                        gc->bg = agc->bg;
                   1819:                        gc->flags |= (agc->flags & GRID_FLAG_BG256);
                   1820:                } else {
                   1821:                        gc->bg = wgc->bg;
                   1822:                        gc->flags |= (wgc->flags & GRID_FLAG_BG256);
                   1823:                }
                   1824:        }
1.1       nicm     1825: }