[BACK]Return to tty.c CVS log [TXT][DIR] Up to [local] / src / usr.bin / tmux

Annotation of src/usr.bin/tmux/tty.c, Revision 1.213

1.213   ! nicm        1: /* $OpenBSD: tty.c,v 1.212 2016/11/15 14:02:32 nicm Exp $ */
1.1       nicm        2:
                      3: /*
1.198     nicm        4:  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
1.1       nicm        5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
                      7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
                      9:  *
                     10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
                     15:  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
                     16:  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     17:  */
                     18:
                     19: #include <sys/types.h>
                     20: #include <sys/ioctl.h>
                     21:
1.106     nicm       22: #include <netinet/in.h>
                     23:
1.212     nicm       24: #include <curses.h>
1.1       nicm       25: #include <errno.h>
                     26: #include <fcntl.h>
1.106     nicm       27: #include <resolv.h>
1.42      nicm       28: #include <stdlib.h>
1.1       nicm       29: #include <string.h>
                     30: #include <termios.h>
                     31: #include <unistd.h>
                     32:
                     33: #include "tmux.h"
                     34:
1.207     nicm       35: static int     tty_log_fd = -1;
1.192     nicm       36:
1.208     nicm       37: static void    tty_init_termios(int, struct termios *, struct bufferevent *);
                     38:
1.207     nicm       39: static void    tty_read_callback(struct bufferevent *, void *);
                     40: static void    tty_error_callback(struct bufferevent *, short, void *);
1.66      nicm       41:
1.207     nicm       42: static int     tty_client_ready(struct client *, struct window_pane *);
1.201     nicm       43:
1.207     nicm       44: static void    tty_set_italics(struct tty *);
                     45: static int     tty_try_colour(struct tty *, int, const char *);
1.208     nicm       46: static void    tty_force_cursor_colour(struct tty *, const char *);
                     47: static void    tty_cursor_pane(struct tty *, const struct tty_ctx *, u_int,
                     48:                    u_int);
1.207     nicm       49:
                     50: static void    tty_colours(struct tty *, const struct grid_cell *);
                     51: static void    tty_check_fg(struct tty *, struct grid_cell *);
                     52: static void    tty_check_bg(struct tty *, struct grid_cell *);
                     53: static void    tty_colours_fg(struct tty *, const struct grid_cell *);
                     54: static void    tty_colours_bg(struct tty *, const struct grid_cell *);
                     55:
1.208     nicm       56: static void    tty_region_pane(struct tty *, const struct tty_ctx *, u_int,
                     57:                    u_int);
1.212     nicm       58: static void    tty_margin_pane(struct tty *, const struct tty_ctx *);
1.207     nicm       59: static int     tty_large_region(struct tty *, const struct tty_ctx *);
1.210     nicm       60: static int     tty_fake_bce(const struct tty *, const struct window_pane *,
                     61:                    u_int);
1.207     nicm       62: static void    tty_redraw_region(struct tty *, const struct tty_ctx *);
                     63: static void    tty_emulate_repeat(struct tty *, enum tty_code_code,
                     64:                    enum tty_code_code, u_int);
                     65: static void    tty_repeat_space(struct tty *, u_int);
                     66: static void    tty_cell(struct tty *, const struct grid_cell *,
                     67:                    const struct window_pane *);
                     68: static void    tty_default_colours(struct grid_cell *,
                     69:                    const struct window_pane *);
1.210     nicm       70: static void    tty_default_attributes(struct tty *, const struct window_pane *,
                     71:                    u_int);
1.1       nicm       72:
1.90      nicm       73: #define tty_use_acs(tty) \
1.131     nicm       74:        (tty_term_has((tty)->term, TTYC_ACSC) && !((tty)->flags & TTY_UTF8))
1.212     nicm       75: #define tty_use_margin(tty) \
1.213   ! nicm       76:        (0 && (tty)->term_type == TTY_VT420)
1.90      nicm       77:
1.132     nicm       78: #define tty_pane_full_width(tty, ctx) \
                     79:        ((ctx)->xoff == 0 && screen_size_x((ctx)->wp->screen) >= (tty)->sx)
                     80:
1.192     nicm       81: void
                     82: tty_create_log(void)
                     83: {
                     84:        char    name[64];
                     85:
                     86:        xsnprintf(name, sizeof name, "tmux-out-%ld.log", (long)getpid());
                     87:
                     88:        tty_log_fd = open(name, O_WRONLY|O_CREAT|O_TRUNC, 0644);
                     89:        if (tty_log_fd != -1 && fcntl(tty_log_fd, F_SETFD, FD_CLOEXEC) == -1)
                     90:                fatal("fcntl failed");
                     91: }
                     92:
1.185     nicm       93: int
1.136     nicm       94: tty_init(struct tty *tty, struct client *c, int fd, char *term)
1.1       nicm       95: {
1.30      nicm       96:        char    *path;
                     97:
1.185     nicm       98:        if (!isatty(fd))
                     99:                return (-1);
                    100:
1.30      nicm      101:        memset(tty, 0, sizeof *tty);
1.22      nicm      102:
1.9       nicm      103:        if (term == NULL || *term == '\0')
1.1       nicm      104:                tty->termname = xstrdup("unknown");
                    105:        else
                    106:                tty->termname = xstrdup(term);
1.30      nicm      107:        tty->fd = fd;
1.136     nicm      108:        tty->client = c;
1.30      nicm      109:
                    110:        if ((path = ttyname(fd)) == NULL)
1.185     nicm      111:                return (-1);
1.30      nicm      112:        tty->path = xstrdup(path);
1.108     nicm      113:        tty->cstyle = 0;
1.107     nicm      114:        tty->ccolour = xstrdup("");
1.30      nicm      115:
1.1       nicm      116:        tty->flags = 0;
1.212     nicm      117:
1.1       nicm      118:        tty->term_flags = 0;
1.212     nicm      119:        tty->term_type = TTY_UNKNOWN;
1.185     nicm      120:
                    121:        return (0);
1.31      nicm      122: }
                    123:
1.88      nicm      124: int
1.31      nicm      125: tty_resize(struct tty *tty)
                    126: {
                    127:        struct winsize  ws;
1.88      nicm      128:        u_int           sx, sy;
1.31      nicm      129:
                    130:        if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
1.88      nicm      131:                sx = ws.ws_col;
                    132:                if (sx == 0)
                    133:                        sx = 80;
                    134:                sy = ws.ws_row;
                    135:                if (sy == 0)
                    136:                        sy = 24;
                    137:        } else {
                    138:                sx = 80;
                    139:                sy = 24;
1.31      nicm      140:        }
1.114     nicm      141:        if (!tty_set_size(tty, sx, sy))
1.88      nicm      142:                return (0);
1.31      nicm      143:
                    144:        tty->cx = UINT_MAX;
                    145:        tty->cy = UINT_MAX;
                    146:
1.212     nicm      147:        tty->rupper = tty->rleft = UINT_MAX;
                    148:        tty->rlower = tty->rright = UINT_MAX;
1.88      nicm      149:
                    150:        /*
                    151:         * If the terminal has been started, reset the actual scroll region and
                    152:         * cursor position, as this may not have happened.
                    153:         */
                    154:        if (tty->flags & TTY_STARTED) {
                    155:                tty_cursor(tty, 0, 0);
                    156:                tty_region(tty, 0, tty->sy - 1);
1.212     nicm      157:                tty_margin(tty, 0, tty->sx - 1);
1.88      nicm      158:        }
                    159:
1.114     nicm      160:        return (1);
                    161: }
                    162:
                    163: int
1.212     nicm      164: tty_set_size(struct tty *tty, u_int sx, u_int sy)
                    165: {
1.114     nicm      166:        if (sx == tty->sx && sy == tty->sy)
                    167:                return (0);
                    168:        tty->sx = sx;
                    169:        tty->sy = sy;
1.88      nicm      170:        return (1);
1.1       nicm      171: }
                    172:
                    173: int
1.166     nicm      174: tty_open(struct tty *tty, char **cause)
1.1       nicm      175: {
1.166     nicm      176:        tty->term = tty_term_find(tty->termname, tty->fd, cause);
1.21      nicm      177:        if (tty->term == NULL) {
                    178:                tty_close(tty);
                    179:                return (-1);
                    180:        }
                    181:        tty->flags |= TTY_OPENED;
1.1       nicm      182:
1.149     nicm      183:        tty->flags &= ~(TTY_NOCURSOR|TTY_FREEZE|TTY_TIMER);
1.1       nicm      184:
1.196     nicm      185:        tty->event = bufferevent_new(tty->fd, tty_read_callback, NULL,
                    186:            tty_error_callback, tty);
1.1       nicm      187:
                    188:        tty_start_tty(tty);
                    189:
1.148     nicm      190:        tty_keys_build(tty);
1.1       nicm      191:
                    192:        return (0);
                    193: }
                    194:
1.207     nicm      195: static void
1.194     nicm      196: tty_read_callback(__unused struct bufferevent *bufev, void *data)
1.67      nicm      197: {
                    198:        struct tty      *tty = data;
                    199:
                    200:        while (tty_keys_next(tty))
                    201:                ;
                    202: }
                    203:
1.207     nicm      204: static void
1.194     nicm      205: tty_error_callback(__unused struct bufferevent *bufev, __unused short what,
                    206:     __unused void *data)
1.66      nicm      207: {
                    208: }
                    209:
1.208     nicm      210: static void
1.127     nicm      211: tty_init_termios(int fd, struct termios *orig_tio, struct bufferevent *bufev)
1.1       nicm      212: {
1.128     nicm      213:        struct termios  tio;
1.33      nicm      214:
1.127     nicm      215:        if (fd == -1 || tcgetattr(fd, orig_tio) != 0)
1.33      nicm      216:                return;
1.1       nicm      217:
1.127     nicm      218:        setblocking(fd, 0);
1.34      nicm      219:
1.127     nicm      220:        if (bufev != NULL)
                    221:                bufferevent_enable(bufev, EV_READ|EV_WRITE);
1.66      nicm      222:
1.127     nicm      223:        memcpy(&tio, orig_tio, sizeof tio);
1.1       nicm      224:        tio.c_iflag &= ~(IXON|IXOFF|ICRNL|INLCR|IGNCR|IMAXBEL|ISTRIP);
                    225:        tio.c_iflag |= IGNBRK;
                    226:        tio.c_oflag &= ~(OPOST|ONLCR|OCRNL|ONLRET);
                    227:        tio.c_lflag &= ~(IEXTEN|ICANON|ECHO|ECHOE|ECHONL|ECHOCTL|
1.169     jsg       228:            ECHOPRT|ECHOKE|ISIG);
1.1       nicm      229:        tio.c_cc[VMIN] = 1;
1.60      deraadt   230:        tio.c_cc[VTIME] = 0;
1.127     nicm      231:        if (tcsetattr(fd, TCSANOW, &tio) == 0)
                    232:                tcflush(fd, TCIOFLUSH);
                    233: }
                    234:
                    235: void
                    236: tty_start_tty(struct tty *tty)
                    237: {
                    238:        tty_init_termios(tty->fd, &tty->tio, tty->event);
1.1       nicm      239:
1.10      nicm      240:        tty_putcode(tty, TTYC_SMCUP);
1.1       nicm      241:
1.25      nicm      242:        tty_putcode(tty, TTYC_SGR0);
                    243:        memcpy(&tty->cell, &grid_default_cell, sizeof tty->cell);
                    244:
1.76      nicm      245:        tty_putcode(tty, TTYC_RMKX);
1.90      nicm      246:        if (tty_use_acs(tty))
                    247:                tty_putcode(tty, TTYC_ENACS);
1.1       nicm      248:        tty_putcode(tty, TTYC_CLEAR);
                    249:
                    250:        tty_putcode(tty, TTYC_CNORM);
                    251:        if (tty_term_has(tty->term, TTYC_KMOUS))
1.179     nicm      252:                tty_puts(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
1.121     nicm      253:
1.189     nicm      254:        if (tty_term_flag(tty->term, TTYC_XT)) {
1.191     nicm      255:                if (options_get_number(global_options, "focus-events")) {
1.162     nicm      256:                        tty->flags |= TTY_FOCUS;
                    257:                        tty_puts(tty, "\033[?1004h");
                    258:                }
1.212     nicm      259:                tty_puts(tty, "\033[c");
1.162     nicm      260:        }
1.1       nicm      261:
                    262:        tty->cx = UINT_MAX;
                    263:        tty->cy = UINT_MAX;
                    264:
1.212     nicm      265:        tty->rupper = tty->rleft = UINT_MAX;
                    266:        tty->rlower = tty->rright = UINT_MAX;
1.1       nicm      267:
                    268:        tty->mode = MODE_CURSOR;
1.20      nicm      269:
                    270:        tty->flags |= TTY_STARTED;
1.107     nicm      271:
                    272:        tty_force_cursor_colour(tty, "");
1.177     nicm      273:
                    274:        tty->mouse_drag_flag = 0;
                    275:        tty->mouse_drag_update = NULL;
                    276:        tty->mouse_drag_release = NULL;
1.128     nicm      277: }
                    278:
                    279: void
1.1       nicm      280: tty_stop_tty(struct tty *tty)
                    281: {
                    282:        struct winsize  ws;
                    283:
1.20      nicm      284:        if (!(tty->flags & TTY_STARTED))
                    285:                return;
                    286:        tty->flags &= ~TTY_STARTED;
                    287:
1.66      nicm      288:        bufferevent_disable(tty->event, EV_READ|EV_WRITE);
                    289:
1.1       nicm      290:        /*
                    291:         * Be flexible about error handling and try not kill the server just
                    292:         * because the fd is invalid. Things like ssh -t can easily leave us
                    293:         * with a dead tty.
                    294:         */
                    295:        if (ioctl(tty->fd, TIOCGWINSZ, &ws) == -1)
                    296:                return;
                    297:        if (tcsetattr(tty->fd, TCSANOW, &tty->tio) == -1)
                    298:                return;
                    299:
                    300:        tty_raw(tty, tty_term_string2(tty->term, TTYC_CSR, 0, ws.ws_row - 1));
1.90      nicm      301:        if (tty_use_acs(tty))
                    302:                tty_raw(tty, tty_term_string(tty->term, TTYC_RMACS));
1.1       nicm      303:        tty_raw(tty, tty_term_string(tty->term, TTYC_SGR0));
                    304:        tty_raw(tty, tty_term_string(tty->term, TTYC_RMKX));
                    305:        tty_raw(tty, tty_term_string(tty->term, TTYC_CLEAR));
1.160     nicm      306:        if (tty_term_has(tty->term, TTYC_SS) && tty->cstyle != 0) {
                    307:                if (tty_term_has(tty->term, TTYC_SE))
                    308:                        tty_raw(tty, tty_term_string(tty->term, TTYC_SE));
1.109     nicm      309:                else
1.160     nicm      310:                        tty_raw(tty, tty_term_string1(tty->term, TTYC_SS, 0));
1.108     nicm      311:        }
1.173     nicm      312:        if (tty->mode & MODE_BRACKETPASTE)
                    313:                tty_raw(tty, "\033[?2004l");
1.107     nicm      314:        tty_raw(tty, tty_term_string(tty->term, TTYC_CR));
1.1       nicm      315:
                    316:        tty_raw(tty, tty_term_string(tty->term, TTYC_CNORM));
                    317:        if (tty_term_has(tty->term, TTYC_KMOUS))
1.179     nicm      318:                tty_raw(tty, "\033[?1000l\033[?1002l\033[?1006l\033[?1005l");
1.151     nicm      319:
1.189     nicm      320:        if (tty_term_flag(tty->term, TTYC_XT)) {
1.162     nicm      321:                if (tty->flags & TTY_FOCUS) {
                    322:                        tty->flags &= ~TTY_FOCUS;
1.172     nicm      323:                        tty_raw(tty, "\033[?1004l");
1.162     nicm      324:                }
                    325:        }
1.10      nicm      326:
1.212     nicm      327:        if (tty_use_margin(tty))
                    328:                tty_raw(tty, "\033[?69l"); /* DECLRMM */
1.10      nicm      329:        tty_raw(tty, tty_term_string(tty->term, TTYC_RMCUP));
1.150     nicm      330:
                    331:        setblocking(tty->fd, 1);
1.1       nicm      332: }
                    333:
                    334: void
1.20      nicm      335: tty_close(struct tty *tty)
1.1       nicm      336: {
1.123     nicm      337:        if (event_initialized(&tty->key_timer))
                    338:                evtimer_del(&tty->key_timer);
1.20      nicm      339:        tty_stop_tty(tty);
1.1       nicm      340:
1.21      nicm      341:        if (tty->flags & TTY_OPENED) {
1.66      nicm      342:                bufferevent_free(tty->event);
                    343:
1.21      nicm      344:                tty_term_free(tty->term);
                    345:                tty_keys_free(tty);
                    346:
                    347:                tty->flags &= ~TTY_OPENED;
                    348:        }
1.1       nicm      349:
1.21      nicm      350:        if (tty->fd != -1) {
                    351:                close(tty->fd);
                    352:                tty->fd = -1;
                    353:        }
1.1       nicm      354: }
                    355:
                    356: void
1.20      nicm      357: tty_free(struct tty *tty)
1.1       nicm      358: {
1.20      nicm      359:        tty_close(tty);
1.1       nicm      360:
1.138     nicm      361:        free(tty->ccolour);
1.190     nicm      362:        free(tty->path);
                    363:        free(tty->termname);
1.1       nicm      364: }
                    365:
                    366: void
1.212     nicm      367: tty_set_type(struct tty *tty, int type)
                    368: {
                    369:        tty->term_type = type;
                    370:
                    371:        if (tty_use_margin(tty))
                    372:                tty_puts(tty, "\033[?69h"); /* DECLRMM */
                    373: }
                    374:
                    375: void
1.1       nicm      376: tty_raw(struct tty *tty, const char *s)
                    377: {
1.150     nicm      378:        ssize_t n, slen;
                    379:        u_int   i;
                    380:
                    381:        slen = strlen(s);
                    382:        for (i = 0; i < 5; i++) {
                    383:                n = write(tty->fd, s, slen);
                    384:                if (n >= 0) {
                    385:                        s += n;
                    386:                        slen -= n;
                    387:                        if (slen == 0)
                    388:                                break;
                    389:                } else if (n == -1 && errno != EAGAIN)
                    390:                        break;
                    391:                usleep(100);
                    392:        }
1.1       nicm      393: }
                    394:
                    395: void
                    396: tty_putcode(struct tty *tty, enum tty_code_code code)
                    397: {
                    398:        tty_puts(tty, tty_term_string(tty->term, code));
                    399: }
                    400:
                    401: void
                    402: tty_putcode1(struct tty *tty, enum tty_code_code code, int a)
                    403: {
                    404:        if (a < 0)
                    405:                return;
                    406:        tty_puts(tty, tty_term_string1(tty->term, code, a));
                    407: }
                    408:
                    409: void
                    410: tty_putcode2(struct tty *tty, enum tty_code_code code, int a, int b)
                    411: {
                    412:        if (a < 0 || b < 0)
                    413:                return;
                    414:        tty_puts(tty, tty_term_string2(tty->term, code, a, b));
                    415: }
                    416:
                    417: void
1.107     nicm      418: tty_putcode_ptr1(struct tty *tty, enum tty_code_code code, const void *a)
                    419: {
                    420:        if (a != NULL)
                    421:                tty_puts(tty, tty_term_ptr1(tty->term, code, a));
                    422: }
                    423:
                    424: void
1.167     nicm      425: tty_putcode_ptr2(struct tty *tty, enum tty_code_code code, const void *a,
                    426:     const void *b)
1.106     nicm      427: {
                    428:        if (a != NULL && b != NULL)
                    429:                tty_puts(tty, tty_term_ptr2(tty->term, code, a, b));
                    430: }
                    431:
                    432: void
1.1       nicm      433: tty_puts(struct tty *tty, const char *s)
                    434: {
                    435:        if (*s == '\0')
                    436:                return;
1.66      nicm      437:        bufferevent_write(tty->event, s, strlen(s));
1.1       nicm      438:
1.192     nicm      439:        if (tty_log_fd != -1)
                    440:                write(tty_log_fd, s, strlen(s));
1.1       nicm      441: }
                    442:
                    443: void
                    444: tty_putc(struct tty *tty, u_char ch)
                    445: {
1.90      nicm      446:        const char      *acs;
1.1       nicm      447:
1.90      nicm      448:        if (tty->cell.attr & GRID_ATTR_CHARSET) {
                    449:                acs = tty_acs_get(tty, ch);
                    450:                if (acs != NULL)
                    451:                        bufferevent_write(tty->event, acs, strlen(acs));
                    452:                else
                    453:                        bufferevent_write(tty->event, &ch, 1);
                    454:        } else
                    455:                bufferevent_write(tty->event, &ch, 1);
1.1       nicm      456:
                    457:        if (ch >= 0x20 && ch != 0x7f) {
1.211     nicm      458:                if (tty->cx >= tty->sx) {
1.46      nicm      459:                        tty->cx = 1;
                    460:                        if (tty->cy != tty->rlower)
                    461:                                tty->cy++;
1.211     nicm      462:
                    463:                        /*
                    464:                         * On !xenl terminals, force the cursor position to
                    465:                         * where we think it should be after a line wrap - this
                    466:                         * means it works on sensible terminals as well.
                    467:                         */
                    468:                        if (tty->term->flags & TERM_EARLYWRAP)
                    469:                                tty_putcode2(tty, TTYC_CUP, tty->cy, tty->cx);
1.1       nicm      470:                } else
                    471:                        tty->cx++;
                    472:        }
                    473:
1.192     nicm      474:        if (tty_log_fd != -1)
                    475:                write(tty_log_fd, &ch, 1);
1.1       nicm      476: }
                    477:
                    478: void
1.147     nicm      479: tty_putn(struct tty *tty, const void *buf, size_t len, u_int width)
1.5       nicm      480: {
1.147     nicm      481:        bufferevent_write(tty->event, buf, len);
1.192     nicm      482:        if (tty_log_fd != -1)
                    483:                write(tty_log_fd, buf, len);
1.147     nicm      484:        tty->cx += width;
1.5       nicm      485: }
                    486:
1.207     nicm      487: static void
1.180     nicm      488: tty_set_italics(struct tty *tty)
                    489: {
                    490:        const char      *s;
                    491:
                    492:        if (tty_term_has(tty->term, TTYC_SITM)) {
1.191     nicm      493:                s = options_get_string(global_options, "default-terminal");
1.180     nicm      494:                if (strcmp(s, "screen") != 0 && strncmp(s, "screen-", 7) != 0) {
                    495:                        tty_putcode(tty, TTYC_SITM);
                    496:                        return;
                    497:                }
                    498:        }
                    499:        tty_putcode(tty, TTYC_SMSO);
                    500: }
                    501:
                    502: void
1.1       nicm      503: tty_set_title(struct tty *tty, const char *title)
                    504: {
1.105     nicm      505:        if (!tty_term_has(tty->term, TTYC_TSL) ||
                    506:            !tty_term_has(tty->term, TTYC_FSL))
1.1       nicm      507:                return;
                    508:
1.105     nicm      509:        tty_putcode(tty, TTYC_TSL);
1.1       nicm      510:        tty_puts(tty, title);
1.105     nicm      511:        tty_putcode(tty, TTYC_FSL);
1.1       nicm      512: }
                    513:
1.208     nicm      514: static void
1.107     nicm      515: tty_force_cursor_colour(struct tty *tty, const char *ccolour)
                    516: {
                    517:        if (*ccolour == '\0')
                    518:                tty_putcode(tty, TTYC_CR);
                    519:        else
1.160     nicm      520:                tty_putcode_ptr1(tty, TTYC_CS, ccolour);
1.138     nicm      521:        free(tty->ccolour);
1.107     nicm      522:        tty->ccolour = xstrdup(ccolour);
                    523: }
                    524:
                    525: void
                    526: tty_update_mode(struct tty *tty, int mode, struct screen *s)
1.1       nicm      527: {
                    528:        int     changed;
                    529:
1.197     nicm      530:        if (s != NULL && strcmp(s->ccolour, tty->ccolour) != 0)
1.107     nicm      531:                tty_force_cursor_colour(tty, s->ccolour);
                    532:
1.1       nicm      533:        if (tty->flags & TTY_NOCURSOR)
                    534:                mode &= ~MODE_CURSOR;
                    535:
                    536:        changed = mode ^ tty->mode;
1.183     nicm      537:        if (changed & MODE_BLINKING) {
                    538:                if (tty_term_has(tty->term, TTYC_CVVIS))
                    539:                        tty_putcode(tty, TTYC_CVVIS);
                    540:                else
                    541:                        tty_putcode(tty, TTYC_CNORM);
                    542:                changed |= MODE_CURSOR;
                    543:        }
                    544:        if (changed & MODE_CURSOR) {
                    545:                if (mode & MODE_CURSOR)
                    546:                        tty_putcode(tty, TTYC_CNORM);
                    547:                else
1.1       nicm      548:                        tty_putcode(tty, TTYC_CIVIS);
1.108     nicm      549:        }
1.181     nicm      550:        if (s != NULL && tty->cstyle != s->cstyle) {
1.160     nicm      551:                if (tty_term_has(tty->term, TTYC_SS)) {
1.108     nicm      552:                        if (s->cstyle == 0 &&
1.160     nicm      553:                            tty_term_has(tty->term, TTYC_SE))
                    554:                                tty_putcode(tty, TTYC_SE);
1.108     nicm      555:                        else
1.160     nicm      556:                                tty_putcode1(tty, TTYC_SS, s->cstyle);
1.108     nicm      557:                }
                    558:                tty->cstyle = s->cstyle;
1.1       nicm      559:        }
1.195     nicm      560:        if (changed & ALL_MOUSE_MODES) {
1.94      nicm      561:                if (mode & ALL_MOUSE_MODES) {
1.153     nicm      562:                        /*
                    563:                         * Enable the SGR (1006) extension unconditionally, as
                    564:                         * this is safe from misinterpretation. Do it in this
                    565:                         * order, because in some terminals it's the last one
                    566:                         * that takes effect and SGR is the preferred one.
                    567:                         */
                    568:                        tty_puts(tty, "\033[?1006h");
1.170     nicm      569:                        if (mode & MODE_MOUSE_BUTTON)
1.94      nicm      570:                                tty_puts(tty, "\033[?1002h");
1.98      nicm      571:                        else if (mode & MODE_MOUSE_STANDARD)
                    572:                                tty_puts(tty, "\033[?1000h");
1.86      nicm      573:                } else {
1.170     nicm      574:                        if (tty->mode & MODE_MOUSE_BUTTON)
1.94      nicm      575:                                tty_puts(tty, "\033[?1002l");
1.98      nicm      576:                        else if (tty->mode & MODE_MOUSE_STANDARD)
                    577:                                tty_puts(tty, "\033[?1000l");
1.153     nicm      578:                        tty_puts(tty, "\033[?1006l");
1.86      nicm      579:                }
1.76      nicm      580:        }
                    581:        if (changed & MODE_KKEYPAD) {
                    582:                if (mode & MODE_KKEYPAD)
                    583:                        tty_putcode(tty, TTYC_SMKX);
                    584:                else
                    585:                        tty_putcode(tty, TTYC_RMKX);
1.115     nicm      586:        }
                    587:        if (changed & MODE_BRACKETPASTE) {
                    588:                if (mode & MODE_BRACKETPASTE)
                    589:                        tty_puts(tty, "\033[?2004h");
                    590:                else
                    591:                        tty_puts(tty, "\033[?2004l");
1.1       nicm      592:        }
                    593:        tty->mode = mode;
                    594: }
                    595:
1.207     nicm      596: static void
1.168     nicm      597: tty_emulate_repeat(struct tty *tty, enum tty_code_code code,
                    598:     enum tty_code_code code1, u_int n)
1.1       nicm      599: {
                    600:        if (tty_term_has(tty->term, code))
                    601:                tty_putcode1(tty, code, n);
                    602:        else {
                    603:                while (n-- > 0)
                    604:                        tty_putcode(tty, code1);
                    605:        }
                    606: }
                    607:
1.207     nicm      608: static void
1.133     nicm      609: tty_repeat_space(struct tty *tty, u_int n)
                    610: {
                    611:        while (n-- > 0)
                    612:                tty_putc(tty, ' ');
                    613: }
                    614:
1.1       nicm      615: /*
1.119     nicm      616:  * Is the region large enough to be worth redrawing once later rather than
                    617:  * probably several times now? Currently yes if it is more than 50% of the
                    618:  * pane.
                    619:  */
1.207     nicm      620: static int
1.194     nicm      621: tty_large_region(__unused struct tty *tty, const struct tty_ctx *ctx)
1.119     nicm      622: {
                    623:        struct window_pane      *wp = ctx->wp;
                    624:
                    625:        return (ctx->orlower - ctx->orupper >= screen_size_y(wp->screen) / 2);
                    626: }
                    627:
                    628: /*
1.176     nicm      629:  * Return if BCE is needed but the terminal doesn't have it - it'll need to be
                    630:  * emulated.
                    631:  */
1.207     nicm      632: static int
1.210     nicm      633: tty_fake_bce(const struct tty *tty, const struct window_pane *wp, u_int bg)
1.176     nicm      634: {
                    635:        struct grid_cell        gc;
                    636:
1.210     nicm      637:        if (tty_term_flag(tty->term, TTYC_BCE))
                    638:                return (0);
                    639:
1.176     nicm      640:        memcpy(&gc, &grid_default_cell, sizeof gc);
1.203     nicm      641:        if (wp != NULL)
                    642:                tty_default_colours(&gc, wp);
1.176     nicm      643:
1.210     nicm      644:        if (bg != 8 || gc.bg != 8)
                    645:                return (1);
                    646:        return (0);
1.176     nicm      647: }
                    648:
                    649: /*
1.1       nicm      650:  * Redraw scroll region using data from screen (already updated). Used when
                    651:  * CSR not supported, or window is a pane that doesn't take up the full
                    652:  * width of the terminal.
                    653:  */
1.207     nicm      654: static void
1.24      nicm      655: tty_redraw_region(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      656: {
1.14      nicm      657:        struct window_pane      *wp = ctx->wp;
                    658:        struct screen           *s = wp->screen;
1.204     nicm      659:        u_int                    i;
1.1       nicm      660:
                    661:        /*
1.119     nicm      662:         * If region is large, schedule a window redraw. In most cases this is
                    663:         * likely to be followed by some more scrolling.
1.1       nicm      664:         */
1.119     nicm      665:        if (tty_large_region(tty, ctx)) {
1.1       nicm      666:                wp->flags |= PANE_REDRAW;
                    667:                return;
                    668:        }
                    669:
1.14      nicm      670:        if (ctx->ocy < ctx->orupper || ctx->ocy > ctx->orlower) {
                    671:                for (i = ctx->ocy; i < screen_size_y(s); i++)
1.176     nicm      672:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      673:        } else {
1.14      nicm      674:                for (i = ctx->orupper; i <= ctx->orlower; i++)
1.176     nicm      675:                        tty_draw_pane(tty, wp, i, ctx->xoff, ctx->yoff);
1.1       nicm      676:        }
                    677: }
                    678:
                    679: void
1.176     nicm      680: tty_draw_pane(struct tty *tty, const struct window_pane *wp, u_int py, u_int ox,
                    681:     u_int oy)
                    682: {
                    683:        tty_draw_line(tty, wp, wp->screen, py, ox, oy);
                    684: }
                    685:
                    686: void
                    687: tty_draw_line(struct tty *tty, const struct window_pane *wp,
                    688:     struct screen *s, u_int py, u_int ox, u_int oy)
1.1       nicm      689: {
1.209     nicm      690:        struct grid_cell         gc, tmp_gc;
1.46      nicm      691:        struct grid_line        *gl;
1.1       nicm      692:        u_int                    i, sx;
1.181     nicm      693:        int                      flags;
1.1       nicm      694:
1.181     nicm      695:        flags = tty->flags & TTY_NOCURSOR;
                    696:        tty->flags |= TTY_NOCURSOR;
                    697:        tty_update_mode(tty, tty->mode, s);
1.35      nicm      698:
1.1       nicm      699:        sx = screen_size_x(s);
1.19      nicm      700:        if (sx > s->grid->linedata[s->grid->hsize + py].cellsize)
                    701:                sx = s->grid->linedata[s->grid->hsize + py].cellsize;
1.1       nicm      702:        if (sx > tty->sx)
                    703:                sx = tty->sx;
                    704:
1.46      nicm      705:        /*
1.174     nicm      706:         * Don't move the cursor to the start position if it will wrap there
1.50      nicm      707:         * itself.
1.46      nicm      708:         */
                    709:        gl = NULL;
                    710:        if (py != 0)
                    711:                gl = &s->grid->linedata[s->grid->hsize + py - 1];
1.83      nicm      712:        if (oy + py == 0 || gl == NULL || !(gl->flags & GRID_LINE_WRAPPED) ||
1.47      nicm      713:            tty->cx < tty->sx || ox != 0 ||
                    714:            (oy + py != tty->cy + 1 && tty->cy != s->rlower + oy))
1.46      nicm      715:                tty_cursor(tty, ox, oy + py);
                    716:
1.1       nicm      717:        for (i = 0; i < sx; i++) {
1.193     nicm      718:                grid_view_get_cell(s->grid, i, py, &gc);
1.209     nicm      719:                if (gc.flags & GRID_FLAG_SELECTED) {
                    720:                        screen_select_cell(s, &tmp_gc, &gc);
                    721:                        tty_cell(tty, &tmp_gc, wp);
                    722:                } else
                    723:                        tty_cell(tty, &gc, wp);
1.1       nicm      724:        }
                    725:
1.181     nicm      726:        if (sx < tty->sx) {
1.210     nicm      727:                tty_default_attributes(tty, wp, 8);
1.181     nicm      728:
                    729:                tty_cursor(tty, ox + sx, oy + py);
                    730:                if (sx != screen_size_x(s) &&
                    731:                    ox + screen_size_x(s) >= tty->sx &&
                    732:                    tty_term_has(tty->term, TTYC_EL) &&
1.210     nicm      733:                    !tty_fake_bce(tty, wp, 8))
1.181     nicm      734:                        tty_putcode(tty, TTYC_EL);
                    735:                else
                    736:                        tty_repeat_space(tty, screen_size_x(s) - sx);
1.35      nicm      737:        }
1.1       nicm      738:
1.181     nicm      739:        tty->flags = (tty->flags & ~TTY_NOCURSOR) | flags;
1.107     nicm      740:        tty_update_mode(tty, tty->mode, s);
1.15      nicm      741: }
                    742:
1.201     nicm      743: static int
1.182     nicm      744: tty_client_ready(struct client *c, struct window_pane *wp)
                    745: {
                    746:        if (c->session == NULL || c->tty.term == NULL)
                    747:                return (0);
                    748:        if (c->flags & CLIENT_SUSPENDED)
                    749:                return (0);
                    750:        if (c->tty.flags & TTY_FREEZE)
                    751:                return (0);
                    752:        if (c->session->curw->window != wp->window)
                    753:                return (0);
                    754:        return (1);
                    755: }
                    756:
1.15      nicm      757: void
1.182     nicm      758: tty_write(void (*cmdfn)(struct tty *, const struct tty_ctx *),
                    759:     struct tty_ctx *ctx)
1.15      nicm      760: {
                    761:        struct window_pane      *wp = ctx->wp;
                    762:        struct client           *c;
                    763:
1.75      nicm      764:        /* wp can be NULL if updating the screen but not the terminal. */
1.15      nicm      765:        if (wp == NULL)
                    766:                return;
                    767:
                    768:        if (wp->window->flags & WINDOW_REDRAW || wp->flags & PANE_REDRAW)
                    769:                return;
1.129     nicm      770:        if (!window_pane_visible(wp) || wp->flags & PANE_DROP)
1.15      nicm      771:                return;
                    772:
1.178     nicm      773:        TAILQ_FOREACH(c, &clients, entry) {
1.182     nicm      774:                if (!tty_client_ready(c, wp))
1.15      nicm      775:                        continue;
                    776:
1.139     nicm      777:                ctx->xoff = wp->xoff;
                    778:                ctx->yoff = wp->yoff;
                    779:                if (status_at_line(c) == 0)
                    780:                        ctx->yoff++;
1.113     nicm      781:
1.139     nicm      782:                cmdfn(&c->tty, ctx);
1.1       nicm      783:        }
                    784: }
                    785:
                    786: void
1.24      nicm      787: tty_cmd_insertcharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      788: {
1.77      nicm      789:        struct window_pane      *wp = ctx->wp;
1.1       nicm      790:
1.210     nicm      791:        if (!tty_pane_full_width(tty, ctx) ||
                    792:            tty_fake_bce(tty, wp, ctx->bg) ||
                    793:            (!tty_term_has(tty->term, TTYC_ICH) &&
                    794:            !tty_term_has(tty->term, TTYC_ICH1))) {
1.176     nicm      795:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      796:                return;
                    797:        }
                    798:
1.210     nicm      799:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      800:
1.77      nicm      801:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      802:
1.206     nicm      803:        tty_emulate_repeat(tty, TTYC_ICH, TTYC_ICH1, ctx->num);
1.1       nicm      804: }
                    805:
                    806: void
1.24      nicm      807: tty_cmd_deletecharacter(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      808: {
1.77      nicm      809:        struct window_pane      *wp = ctx->wp;
1.1       nicm      810:
1.210     nicm      811:        if (!tty_pane_full_width(tty, ctx) ||
                    812:            tty_fake_bce(tty, wp, ctx->bg) ||
1.26      nicm      813:            (!tty_term_has(tty->term, TTYC_DCH) &&
                    814:            !tty_term_has(tty->term, TTYC_DCH1))) {
1.176     nicm      815:                tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.1       nicm      816:                return;
                    817:        }
                    818:
1.210     nicm      819:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      820:
1.77      nicm      821:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.41      nicm      822:
1.206     nicm      823:        tty_emulate_repeat(tty, TTYC_DCH, TTYC_DCH1, ctx->num);
1.146     nicm      824: }
                    825:
                    826: void
                    827: tty_cmd_clearcharacter(struct tty *tty, const struct tty_ctx *ctx)
                    828: {
                    829:        u_int   i;
                    830:
1.176     nicm      831:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.146     nicm      832:
                    833:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    834:
1.210     nicm      835:        if (tty_term_has(tty->term, TTYC_ECH) &&
                    836:            !tty_fake_bce(tty, ctx->wp, ctx->bg))
1.146     nicm      837:                tty_putcode1(tty, TTYC_ECH, ctx->num);
                    838:        else {
                    839:                for (i = 0; i < ctx->num; i++)
                    840:                        tty_putc(tty, ' ');
                    841:        }
1.1       nicm      842: }
                    843:
                    844: void
1.24      nicm      845: tty_cmd_insertline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      846: {
1.210     nicm      847:        if (!tty_pane_full_width(tty, ctx) ||
                    848:            tty_fake_bce(tty, ctx->wp, ctx->bg) ||
1.77      nicm      849:            !tty_term_has(tty->term, TTYC_CSR) ||
1.72      nicm      850:            !tty_term_has(tty->term, TTYC_IL1)) {
1.14      nicm      851:                tty_redraw_region(tty, ctx);
1.1       nicm      852:                return;
                    853:        }
                    854:
1.210     nicm      855:        tty_default_attributes(tty, ctx->wp, ctx->bg);
1.1       nicm      856:
1.77      nicm      857:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.212     nicm      858:        tty_margin_pane(tty, ctx);
1.77      nicm      859:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      860:
1.12      nicm      861:        tty_emulate_repeat(tty, TTYC_IL, TTYC_IL1, ctx->num);
1.1       nicm      862: }
                    863:
                    864: void
1.24      nicm      865: tty_cmd_deleteline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      866: {
1.210     nicm      867:        if (!tty_pane_full_width(tty, ctx) ||
                    868:            tty_fake_bce(tty, ctx->wp, ctx->bg) ||
1.72      nicm      869:            !tty_term_has(tty->term, TTYC_CSR) ||
                    870:            !tty_term_has(tty->term, TTYC_DL1)) {
1.14      nicm      871:                tty_redraw_region(tty, ctx);
1.1       nicm      872:                return;
                    873:        }
                    874:
1.210     nicm      875:        tty_default_attributes(tty, ctx->wp, ctx->bg);
1.1       nicm      876:
1.77      nicm      877:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.212     nicm      878:        tty_margin_pane(tty, ctx);
1.77      nicm      879:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      880:
1.12      nicm      881:        tty_emulate_repeat(tty, TTYC_DL, TTYC_DL1, ctx->num);
1.1       nicm      882: }
                    883:
                    884: void
1.24      nicm      885: tty_cmd_clearline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      886: {
1.77      nicm      887:        struct window_pane      *wp = ctx->wp;
1.12      nicm      888:        struct screen           *s = wp->screen;
1.1       nicm      889:
1.210     nicm      890:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      891:
1.77      nicm      892:        tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.41      nicm      893:
1.210     nicm      894:        if (tty_pane_full_width(tty, ctx) &&
                    895:            !tty_fake_bce(tty, wp, ctx->bg) &&
1.176     nicm      896:            tty_term_has(tty->term, TTYC_EL))
1.1       nicm      897:                tty_putcode(tty, TTYC_EL);
1.133     nicm      898:        else
                    899:                tty_repeat_space(tty, screen_size_x(s));
1.1       nicm      900: }
                    901:
                    902: void
1.24      nicm      903: tty_cmd_clearendofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      904: {
1.77      nicm      905:        struct window_pane      *wp = ctx->wp;
1.12      nicm      906:        struct screen           *s = wp->screen;
1.1       nicm      907:
1.210     nicm      908:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      909:
1.41      nicm      910:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
                    911:
1.176     nicm      912:        if (tty_pane_full_width(tty, ctx) &&
1.210     nicm      913:            tty_term_has(tty->term, TTYC_EL) &&
                    914:            !tty_fake_bce(tty, wp, ctx->bg))
1.1       nicm      915:                tty_putcode(tty, TTYC_EL);
1.133     nicm      916:        else
                    917:                tty_repeat_space(tty, screen_size_x(s) - ctx->ocx);
1.1       nicm      918: }
                    919:
                    920: void
1.24      nicm      921: tty_cmd_clearstartofline(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      922: {
1.210     nicm      923:        struct window_pane      *wp = ctx->wp;
                    924:
                    925:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm      926:
1.210     nicm      927:        if (ctx->xoff == 0 &&
                    928:            tty_term_has(tty->term, TTYC_EL1) &&
                    929:            !tty_fake_bce(tty, ctx->wp, ctx->bg)) {
1.41      nicm      930:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm      931:                tty_putcode(tty, TTYC_EL1);
                    932:        } else {
1.41      nicm      933:                tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.133     nicm      934:                tty_repeat_space(tty, ctx->ocx + 1);
1.1       nicm      935:        }
                    936: }
                    937:
                    938: void
1.24      nicm      939: tty_cmd_reverseindex(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      940: {
1.56      nicm      941:        if (ctx->ocy != ctx->orupper)
                    942:                return;
                    943:
1.210     nicm      944:        if (!tty_pane_full_width(tty, ctx) ||
                    945:            tty_fake_bce(tty, ctx->wp, ctx->bg) ||
1.70      nicm      946:            !tty_term_has(tty->term, TTYC_CSR) ||
                    947:            !tty_term_has(tty->term, TTYC_RI)) {
1.14      nicm      948:                tty_redraw_region(tty, ctx);
1.1       nicm      949:                return;
                    950:        }
                    951:
1.176     nicm      952:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.77      nicm      953:
1.56      nicm      954:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.212     nicm      955:        tty_margin_pane(tty, ctx);
1.56      nicm      956:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->orupper);
1.77      nicm      957:
1.56      nicm      958:        tty_putcode(tty, TTYC_RI);
1.1       nicm      959: }
                    960:
                    961: void
1.24      nicm      962: tty_cmd_linefeed(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm      963: {
1.77      nicm      964:        struct window_pane      *wp = ctx->wp;
1.1       nicm      965:
1.56      nicm      966:        if (ctx->ocy != ctx->orlower)
                    967:                return;
                    968:
1.212     nicm      969:        if ((!tty_pane_full_width(tty, ctx) && !tty_use_margin(tty)) ||
1.210     nicm      970:            tty_fake_bce(tty, wp, ctx->bg) ||
1.1       nicm      971:            !tty_term_has(tty->term, TTYC_CSR)) {
1.128     nicm      972:                if (tty_large_region(tty, ctx))
                    973:                        wp->flags |= PANE_REDRAW;
1.140     nicm      974:                else
1.128     nicm      975:                        tty_redraw_region(tty, ctx);
1.1       nicm      976:                return;
                    977:        }
1.52      nicm      978:
                    979:        /*
1.212     nicm      980:         * If this line wrapped naturally (ctx->num is nonzero) and we are not
                    981:         * using margins, don't do anything - the cursor can just be moved
                    982:         * to the last cell and wrap naturally.
1.52      nicm      983:         */
1.212     nicm      984:        if (!tty_use_margin(tty) &&
                    985:            ctx->num != 0 &&
                    986:            !(tty->term->flags & TERM_EARLYWRAP)) {
1.52      nicm      987:                return;
1.212     nicm      988:        }
1.1       nicm      989:
1.176     nicm      990:        tty_attributes(tty, &grid_default_cell, wp);
1.77      nicm      991:
1.56      nicm      992:        tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.212     nicm      993:        tty_margin_pane(tty, ctx);
                    994:
                    995:        /*
                    996:         * If we want to wrap a pane, the cursor needs to be exactly on the
                    997:         * right of the region. But if the pane isn't on the right, it may be
                    998:         * off the edge - if so, move the cursor back to the right.
                    999:         */
                   1000:        if (ctx->xoff + ctx->ocx > tty->rright)
                   1001:                tty_cursor(tty, tty->rright, ctx->yoff + ctx->ocy);
                   1002:        else
                   1003:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.77      nicm     1004:
1.56      nicm     1005:        tty_putc(tty, '\n');
1.1       nicm     1006: }
                   1007:
                   1008: void
1.24      nicm     1009: tty_cmd_clearendofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1010: {
1.77      nicm     1011:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1012:        struct screen           *s = wp->screen;
1.204     nicm     1013:        u_int                    i, j;
1.1       nicm     1014:
1.210     nicm     1015:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm     1016:
1.39      nicm     1017:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.212     nicm     1018:        tty_margin_pane(tty, ctx);
1.41      nicm     1019:        tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.39      nicm     1020:
1.176     nicm     1021:        if (tty_pane_full_width(tty, ctx) &&
1.210     nicm     1022:            tty_term_has(tty->term, TTYC_EL) &&
                   1023:            !tty_fake_bce(tty, wp, ctx->bg)) {
1.1       nicm     1024:                tty_putcode(tty, TTYC_EL);
1.14      nicm     1025:                if (ctx->ocy != screen_size_y(s) - 1) {
1.41      nicm     1026:                        tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
1.14      nicm     1027:                        for (i = ctx->ocy + 1; i < screen_size_y(s); i++) {
1.1       nicm     1028:                                tty_putcode(tty, TTYC_EL);
                   1029:                                if (i == screen_size_y(s) - 1)
                   1030:                                        continue;
                   1031:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1032:                                tty->cy++;
                   1033:                        }
                   1034:                }
                   1035:        } else {
1.133     nicm     1036:                tty_repeat_space(tty, screen_size_x(s) - ctx->ocx);
1.68      nicm     1037:                for (j = ctx->ocy + 1; j < screen_size_y(s); j++) {
1.41      nicm     1038:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm     1039:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm     1040:                }
                   1041:        }
                   1042: }
                   1043:
                   1044: void
1.24      nicm     1045: tty_cmd_clearstartofscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1046: {
1.77      nicm     1047:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1048:        struct screen           *s = wp->screen;
1.204     nicm     1049:        u_int                    i, j;
1.1       nicm     1050:
1.176     nicm     1051:        tty_attributes(tty, &grid_default_cell, wp);
1.1       nicm     1052:
1.39      nicm     1053:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.212     nicm     1054:        tty_margin_pane(tty, ctx);
1.41      nicm     1055:        tty_cursor_pane(tty, ctx, 0, 0);
1.39      nicm     1056:
1.176     nicm     1057:        if (tty_pane_full_width(tty, ctx) &&
1.210     nicm     1058:            tty_term_has(tty->term, TTYC_EL) &&
                   1059:            !tty_fake_bce(tty, wp, ctx->bg)) {
1.14      nicm     1060:                for (i = 0; i < ctx->ocy; i++) {
1.1       nicm     1061:                        tty_putcode(tty, TTYC_EL);
                   1062:                        tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1063:                        tty->cy++;
                   1064:                }
                   1065:        } else {
1.14      nicm     1066:                for (j = 0; j < ctx->ocy; j++) {
1.41      nicm     1067:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm     1068:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm     1069:                }
                   1070:        }
1.133     nicm     1071:        tty_repeat_space(tty, ctx->ocx + 1);
1.1       nicm     1072: }
                   1073:
                   1074: void
1.24      nicm     1075: tty_cmd_clearscreen(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1076: {
1.77      nicm     1077:        struct window_pane      *wp = ctx->wp;
1.12      nicm     1078:        struct screen           *s = wp->screen;
1.204     nicm     1079:        u_int                    i, j;
1.1       nicm     1080:
1.210     nicm     1081:        tty_default_attributes(tty, wp, ctx->bg);
1.1       nicm     1082:
1.39      nicm     1083:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.212     nicm     1084:        tty_margin_pane(tty, ctx);
1.41      nicm     1085:        tty_cursor_pane(tty, ctx, 0, 0);
1.39      nicm     1086:
1.176     nicm     1087:        if (tty_pane_full_width(tty, ctx) &&
1.210     nicm     1088:            tty_term_has(tty->term, TTYC_EL) &&
                   1089:            !tty_fake_bce(tty, wp, ctx->bg)) {
1.1       nicm     1090:                for (i = 0; i < screen_size_y(s); i++) {
                   1091:                        tty_putcode(tty, TTYC_EL);
                   1092:                        if (i != screen_size_y(s) - 1) {
                   1093:                                tty_emulate_repeat(tty, TTYC_CUD, TTYC_CUD1, 1);
                   1094:                                tty->cy++;
                   1095:                        }
                   1096:                }
                   1097:        } else {
                   1098:                for (j = 0; j < screen_size_y(s); j++) {
1.41      nicm     1099:                        tty_cursor_pane(tty, ctx, 0, j);
1.133     nicm     1100:                        tty_repeat_space(tty, screen_size_x(s));
1.1       nicm     1101:                }
1.4       nicm     1102:        }
                   1103: }
                   1104:
                   1105: void
1.24      nicm     1106: tty_cmd_alignmenttest(struct tty *tty, const struct tty_ctx *ctx)
1.4       nicm     1107: {
1.12      nicm     1108:        struct window_pane      *wp = ctx->wp;
                   1109:        struct screen           *s = wp->screen;
                   1110:        u_int                    i, j;
1.4       nicm     1111:
1.176     nicm     1112:        tty_attributes(tty, &grid_default_cell, wp);
1.4       nicm     1113:
1.39      nicm     1114:        tty_region_pane(tty, ctx, 0, screen_size_y(s) - 1);
1.212     nicm     1115:        tty_margin_pane(tty, ctx);
1.4       nicm     1116:
                   1117:        for (j = 0; j < screen_size_y(s); j++) {
1.41      nicm     1118:                tty_cursor_pane(tty, ctx, 0, j);
1.4       nicm     1119:                for (i = 0; i < screen_size_x(s); i++)
                   1120:                        tty_putc(tty, 'E');
1.1       nicm     1121:        }
                   1122: }
                   1123:
                   1124: void
1.24      nicm     1125: tty_cmd_cell(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1126: {
1.46      nicm     1127:        struct window_pane      *wp = ctx->wp;
                   1128:        struct screen           *s = wp->screen;
1.203     nicm     1129:        u_int                    cx, width;
1.46      nicm     1130:
1.203     nicm     1131:        if (ctx->ocy == ctx->orlower)
                   1132:                tty_region_pane(tty, ctx, ctx->orupper, ctx->orlower);
1.212     nicm     1133:        tty_margin_pane(tty, ctx);
1.46      nicm     1134:
1.57      nicm     1135:        /* Is the cursor in the very last position? */
1.193     nicm     1136:        width = ctx->cell->data.width;
1.102     nicm     1137:        if (ctx->ocx > wp->sx - width) {
1.113     nicm     1138:                if (ctx->xoff != 0 || wp->sx != tty->sx) {
1.57      nicm     1139:                        /*
                   1140:                         * The pane doesn't fill the entire line, the linefeed
                   1141:                         * will already have happened, so just move the cursor.
                   1142:                         */
1.125     nicm     1143:                        if (ctx->ocy != wp->yoff + wp->screen->rlower)
1.122     nicm     1144:                                tty_cursor_pane(tty, ctx, 0, ctx->ocy + 1);
                   1145:                        else
                   1146:                                tty_cursor_pane(tty, ctx, 0, ctx->ocy);
1.57      nicm     1147:                } else if (tty->cx < tty->sx) {
                   1148:                        /*
                   1149:                         * The cursor isn't in the last position already, so
1.102     nicm     1150:                         * move as far left as possible and redraw the last
1.57      nicm     1151:                         * cell to move into the last position.
                   1152:                         */
1.193     nicm     1153:                        cx = screen_size_x(s) - ctx->last_cell.data.width;
1.50      nicm     1154:                        tty_cursor_pane(tty, ctx, cx, ctx->ocy);
1.176     nicm     1155:                        tty_cell(tty, &ctx->last_cell, wp);
1.50      nicm     1156:                }
                   1157:        } else
1.46      nicm     1158:                tty_cursor_pane(tty, ctx, ctx->ocx, ctx->ocy);
1.1       nicm     1159:
1.176     nicm     1160:        tty_cell(tty, ctx->cell, wp);
1.1       nicm     1161: }
                   1162:
                   1163: void
1.24      nicm     1164: tty_cmd_utf8character(struct tty *tty, const struct tty_ctx *ctx)
1.1       nicm     1165: {
1.53      nicm     1166:        struct window_pane      *wp = ctx->wp;
1.1       nicm     1167:
1.53      nicm     1168:        /*
                   1169:         * Cannot rely on not being a partial character, so just redraw the
                   1170:         * whole line.
                   1171:         */
1.176     nicm     1172:        tty_draw_pane(tty, wp, ctx->ocy, ctx->xoff, ctx->yoff);
1.106     nicm     1173: }
                   1174:
                   1175: void
                   1176: tty_cmd_setselection(struct tty *tty, const struct tty_ctx *ctx)
                   1177: {
                   1178:        char    *buf;
                   1179:        size_t   off;
                   1180:
                   1181:        if (!tty_term_has(tty->term, TTYC_MS))
                   1182:                return;
                   1183:
                   1184:        off = 4 * ((ctx->num + 2) / 3) + 1; /* storage for base64 */
                   1185:        buf = xmalloc(off);
                   1186:
                   1187:        b64_ntop(ctx->ptr, ctx->num, buf, off);
                   1188:        tty_putcode_ptr2(tty, TTYC_MS, "", buf);
                   1189:
1.138     nicm     1190:        free(buf);
1.100     nicm     1191: }
                   1192:
                   1193: void
                   1194: tty_cmd_rawstring(struct tty *tty, const struct tty_ctx *ctx)
                   1195: {
                   1196:        u_int    i;
                   1197:        u_char  *str = ctx->ptr;
                   1198:
                   1199:        for (i = 0; i < ctx->num; i++)
                   1200:                tty_putc(tty, str[i]);
1.141     nicm     1201:
                   1202:        tty->cx = tty->cy = UINT_MAX;
                   1203:        tty->rupper = tty->rlower = UINT_MAX;
                   1204:
1.176     nicm     1205:        tty_attributes(tty, &grid_default_cell, ctx->wp);
1.141     nicm     1206:        tty_cursor(tty, 0, 0);
1.1       nicm     1207: }
                   1208:
1.207     nicm     1209: static void
1.176     nicm     1210: tty_cell(struct tty *tty, const struct grid_cell *gc,
                   1211:     const struct window_pane *wp)
1.1       nicm     1212: {
1.193     nicm     1213:        u_int   i;
1.1       nicm     1214:
                   1215:        /* Skip last character if terminal is stupid. */
1.211     nicm     1216:        if ((tty->term->flags & TERM_EARLYWRAP) &&
                   1217:            tty->cy == tty->sy - 1 &&
                   1218:            tty->cx == tty->sx - 1)
1.1       nicm     1219:                return;
                   1220:
                   1221:        /* If this is a padding character, do nothing. */
                   1222:        if (gc->flags & GRID_FLAG_PADDING)
                   1223:                return;
                   1224:
                   1225:        /* Set the attributes. */
1.176     nicm     1226:        tty_attributes(tty, gc, wp);
1.1       nicm     1227:
1.147     nicm     1228:        /* Get the cell and if ASCII write with putc to do ACS translation. */
1.193     nicm     1229:        if (gc->data.size == 1) {
                   1230:                if (*gc->data.data < 0x20 || *gc->data.data == 0x7f)
1.1       nicm     1231:                        return;
1.193     nicm     1232:                tty_putc(tty, *gc->data.data);
1.1       nicm     1233:                return;
                   1234:        }
                   1235:
1.147     nicm     1236:        /* If not UTF-8, write _. */
1.1       nicm     1237:        if (!(tty->flags & TTY_UTF8)) {
1.193     nicm     1238:                for (i = 0; i < gc->data.width; i++)
1.1       nicm     1239:                        tty_putc(tty, '_');
                   1240:                return;
                   1241:        }
                   1242:
1.147     nicm     1243:        /* Write the data. */
1.193     nicm     1244:        tty_putn(tty, gc->data.data, gc->data.size, gc->data.width);
1.1       nicm     1245: }
                   1246:
                   1247: void
                   1248: tty_reset(struct tty *tty)
                   1249: {
                   1250:        struct grid_cell        *gc = &tty->cell;
                   1251:
1.205     nicm     1252:        if (grid_cells_equal(gc, &grid_default_cell))
1.1       nicm     1253:                return;
                   1254:
1.90      nicm     1255:        if ((gc->attr & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1.1       nicm     1256:                tty_putcode(tty, TTYC_RMACS);
                   1257:        tty_putcode(tty, TTYC_SGR0);
                   1258:        memcpy(gc, &grid_default_cell, sizeof *gc);
                   1259: }
                   1260:
1.40      nicm     1261: /* Set region inside pane. */
1.208     nicm     1262: static void
1.196     nicm     1263: tty_region_pane(struct tty *tty, const struct tty_ctx *ctx, u_int rupper,
                   1264:     u_int rlower)
1.1       nicm     1265: {
1.113     nicm     1266:        tty_region(tty, ctx->yoff + rupper, ctx->yoff + rlower);
1.39      nicm     1267: }
                   1268:
1.40      nicm     1269: /* Set region at absolute position. */
1.39      nicm     1270: void
1.40      nicm     1271: tty_region(struct tty *tty, u_int rupper, u_int rlower)
1.39      nicm     1272: {
                   1273:        if (tty->rlower == rlower && tty->rupper == rupper)
                   1274:                return;
1.1       nicm     1275:        if (!tty_term_has(tty->term, TTYC_CSR))
                   1276:                return;
1.39      nicm     1277:
                   1278:        tty->rupper = rupper;
                   1279:        tty->rlower = rlower;
1.55      nicm     1280:
                   1281:        /*
                   1282:         * Some terminals (such as PuTTY) do not correctly reset the cursor to
                   1283:         * 0,0 if it is beyond the last column (they do not reset their wrap
                   1284:         * flag so further output causes a line feed). As a workaround, do an
                   1285:         * explicit move to 0 first.
                   1286:         */
                   1287:        if (tty->cx >= tty->sx)
                   1288:                tty_cursor(tty, 0, tty->cy);
1.42      nicm     1289:
1.39      nicm     1290:        tty_putcode2(tty, TTYC_CSR, tty->rupper, tty->rlower);
1.212     nicm     1291:        tty_cursor(tty, 0, 0);
                   1292: }
                   1293:
                   1294: /* Set margin inside pane. */
                   1295: static void
                   1296: tty_margin_pane(struct tty *tty, const struct tty_ctx *ctx)
                   1297: {
                   1298:        tty_margin(tty, ctx->xoff, ctx->xoff + ctx->wp->sx - 1);
                   1299: }
                   1300:
                   1301: /* Set margin at absolute position. */
                   1302: void
                   1303: tty_margin(struct tty *tty, u_int rleft, u_int rright)
                   1304: {
                   1305:        char s[64];
                   1306:
                   1307:        if (!tty_use_margin(tty))
                   1308:                return;
                   1309:        if (tty->rleft == rleft && tty->rright == rright)
                   1310:                return;
                   1311:
                   1312:        tty->rleft = rleft;
                   1313:        tty->rright = rright;
                   1314:
                   1315:        snprintf(s, sizeof s, "\033[%u;%us", rleft + 1, rright + 1);
                   1316:        tty_puts(tty, s);
1.78      nicm     1317:        tty_cursor(tty, 0, 0);
1.1       nicm     1318: }
                   1319:
1.42      nicm     1320: /* Move cursor inside pane. */
1.208     nicm     1321: static void
1.41      nicm     1322: tty_cursor_pane(struct tty *tty, const struct tty_ctx *ctx, u_int cx, u_int cy)
                   1323: {
1.113     nicm     1324:        tty_cursor(tty, ctx->xoff + cx, ctx->yoff + cy);
1.41      nicm     1325: }
                   1326:
1.42      nicm     1327: /* Move cursor to absolute position. */
1.41      nicm     1328: void
                   1329: tty_cursor(struct tty *tty, u_int cx, u_int cy)
1.1       nicm     1330: {
1.42      nicm     1331:        struct tty_term *term = tty->term;
                   1332:        u_int            thisx, thisy;
                   1333:        int              change;
1.77      nicm     1334:
1.42      nicm     1335:        if (cx > tty->sx - 1)
                   1336:                cx = tty->sx - 1;
                   1337:
                   1338:        thisx = tty->cx;
                   1339:        thisy = tty->cy;
                   1340:
                   1341:        /* No change. */
                   1342:        if (cx == thisx && cy == thisy)
                   1343:                return;
                   1344:
1.43      nicm     1345:        /* Very end of the line, just use absolute movement. */
                   1346:        if (thisx > tty->sx - 1)
                   1347:                goto absolute;
                   1348:
1.42      nicm     1349:        /* Move to home position (0, 0). */
                   1350:        if (cx == 0 && cy == 0 && tty_term_has(term, TTYC_HOME)) {
                   1351:                tty_putcode(tty, TTYC_HOME);
                   1352:                goto out;
                   1353:        }
                   1354:
                   1355:        /* Zero on the next line. */
1.48      nicm     1356:        if (cx == 0 && cy == thisy + 1 && thisy != tty->rlower) {
1.1       nicm     1357:                tty_putc(tty, '\r');
1.42      nicm     1358:                tty_putc(tty, '\n');
                   1359:                goto out;
                   1360:        }
                   1361:
1.45      nicm     1362:        /* Moving column or row. */
1.42      nicm     1363:        if (cy == thisy) {
1.45      nicm     1364:                /*
                   1365:                 * Moving column only, row staying the same.
                   1366:                 */
                   1367:
1.42      nicm     1368:                /* To left edge. */
1.202     nicm     1369:                if (cx == 0) {
1.42      nicm     1370:                        tty_putc(tty, '\r');
                   1371:                        goto out;
                   1372:                }
                   1373:
                   1374:                /* One to the left. */
                   1375:                if (cx == thisx - 1 && tty_term_has(term, TTYC_CUB1)) {
                   1376:                        tty_putcode(tty, TTYC_CUB1);
                   1377:                        goto out;
                   1378:                }
                   1379:
                   1380:                /* One to the right. */
                   1381:                if (cx == thisx + 1 && tty_term_has(term, TTYC_CUF1)) {
                   1382:                        tty_putcode(tty, TTYC_CUF1);
                   1383:                        goto out;
                   1384:                }
                   1385:
                   1386:                /* Calculate difference. */
                   1387:                change = thisx - cx;    /* +ve left, -ve right */
                   1388:
                   1389:                /*
                   1390:                 * Use HPA if change is larger than absolute, otherwise move
                   1391:                 * the cursor with CUB/CUF.
                   1392:                 */
1.87      nicm     1393:                if ((u_int) abs(change) > cx && tty_term_has(term, TTYC_HPA)) {
1.42      nicm     1394:                        tty_putcode1(tty, TTYC_HPA, cx);
                   1395:                        goto out;
                   1396:                } else if (change > 0 && tty_term_has(term, TTYC_CUB)) {
1.202     nicm     1397:                        if (change == 2 && tty_term_has(term, TTYC_CUB1)) {
                   1398:                                tty_putcode(tty, TTYC_CUB1);
                   1399:                                tty_putcode(tty, TTYC_CUB1);
                   1400:                                goto out;
                   1401:                        }
1.42      nicm     1402:                        tty_putcode1(tty, TTYC_CUB, change);
                   1403:                        goto out;
                   1404:                } else if (change < 0 && tty_term_has(term, TTYC_CUF)) {
                   1405:                        tty_putcode1(tty, TTYC_CUF, -change);
                   1406:                        goto out;
                   1407:                }
1.45      nicm     1408:        } else if (cx == thisx) {
                   1409:                /*
                   1410:                 * Moving row only, column staying the same.
                   1411:                 */
1.42      nicm     1412:
                   1413:                /* One above. */
1.77      nicm     1414:                if (thisy != tty->rupper &&
1.42      nicm     1415:                    cy == thisy - 1 && tty_term_has(term, TTYC_CUU1)) {
                   1416:                        tty_putcode(tty, TTYC_CUU1);
                   1417:                        goto out;
                   1418:                }
                   1419:
                   1420:                /* One below. */
1.49      nicm     1421:                if (thisy != tty->rlower &&
1.42      nicm     1422:                    cy == thisy + 1 && tty_term_has(term, TTYC_CUD1)) {
                   1423:                        tty_putcode(tty, TTYC_CUD1);
                   1424:                        goto out;
                   1425:                }
                   1426:
                   1427:                /* Calculate difference. */
                   1428:                change = thisy - cy;    /* +ve up, -ve down */
                   1429:
                   1430:                /*
1.77      nicm     1431:                 * Try to use VPA if change is larger than absolute or if this
                   1432:                 * change would cross the scroll region, otherwise use CUU/CUD.
1.42      nicm     1433:                 */
1.87      nicm     1434:                if ((u_int) abs(change) > cy ||
1.42      nicm     1435:                    (change < 0 && cy - change > tty->rlower) ||
1.44      nicm     1436:                    (change > 0 && cy - change < tty->rupper)) {
                   1437:                            if (tty_term_has(term, TTYC_VPA)) {
                   1438:                                    tty_putcode1(tty, TTYC_VPA, cy);
                   1439:                                    goto out;
                   1440:                            }
1.42      nicm     1441:                } else if (change > 0 && tty_term_has(term, TTYC_CUU)) {
                   1442:                        tty_putcode1(tty, TTYC_CUU, change);
                   1443:                        goto out;
                   1444:                } else if (change < 0 && tty_term_has(term, TTYC_CUD)) {
                   1445:                        tty_putcode1(tty, TTYC_CUD, -change);
                   1446:                        goto out;
                   1447:                }
                   1448:        }
                   1449:
1.43      nicm     1450: absolute:
1.42      nicm     1451:        /* Absolute movement. */
                   1452:        tty_putcode2(tty, TTYC_CUP, cy, cx);
                   1453:
                   1454: out:
                   1455:        tty->cx = cx;
                   1456:        tty->cy = cy;
1.1       nicm     1457: }
                   1458:
                   1459: void
1.176     nicm     1460: tty_attributes(struct tty *tty, const struct grid_cell *gc,
                   1461:     const struct window_pane *wp)
1.1       nicm     1462: {
1.63      nicm     1463:        struct grid_cell        *tc = &tty->cell, gc2;
1.85      nicm     1464:        u_char                   changed;
1.61      nicm     1465:
1.85      nicm     1466:        memcpy(&gc2, gc, sizeof gc2);
1.203     nicm     1467:        if (wp != NULL)
                   1468:                tty_default_colours(&gc2, wp);
1.63      nicm     1469:
1.18      nicm     1470:        /*
                   1471:         * If no setab, try to use the reverse attribute as a best-effort for a
                   1472:         * non-default background. This is a bit of a hack but it doesn't do
                   1473:         * any serious harm and makes a couple of applications happier.
                   1474:         */
                   1475:        if (!tty_term_has(tty->term, TTYC_SETAB)) {
1.85      nicm     1476:                if (gc2.attr & GRID_ATTR_REVERSE) {
                   1477:                        if (gc2.fg != 7 && gc2.fg != 8)
1.64      nicm     1478:                                gc2.attr &= ~GRID_ATTR_REVERSE;
1.18      nicm     1479:                } else {
1.85      nicm     1480:                        if (gc2.bg != 0 && gc2.bg != 8)
1.64      nicm     1481:                                gc2.attr |= GRID_ATTR_REVERSE;
1.18      nicm     1482:                }
                   1483:        }
1.1       nicm     1484:
1.85      nicm     1485:        /* Fix up the colours if necessary. */
                   1486:        tty_check_fg(tty, &gc2);
                   1487:        tty_check_bg(tty, &gc2);
                   1488:
1.64      nicm     1489:        /* If any bits are being cleared, reset everything. */
1.85      nicm     1490:        if (tc->attr & ~gc2.attr)
1.64      nicm     1491:                tty_reset(tty);
                   1492:
                   1493:        /*
                   1494:         * Set the colours. This may call tty_reset() (so it comes next) and
                   1495:         * may add to (NOT remove) the desired attributes by changing new_attr.
                   1496:         */
1.85      nicm     1497:        tty_colours(tty, &gc2);
1.64      nicm     1498:
1.1       nicm     1499:        /* Filter out attribute bits already set. */
1.85      nicm     1500:        changed = gc2.attr & ~tc->attr;
                   1501:        tc->attr = gc2.attr;
1.1       nicm     1502:
                   1503:        /* Set the attributes. */
                   1504:        if (changed & GRID_ATTR_BRIGHT)
                   1505:                tty_putcode(tty, TTYC_BOLD);
                   1506:        if (changed & GRID_ATTR_DIM)
                   1507:                tty_putcode(tty, TTYC_DIM);
1.180     nicm     1508:        if (changed & GRID_ATTR_ITALICS)
                   1509:                tty_set_italics(tty);
1.1       nicm     1510:        if (changed & GRID_ATTR_UNDERSCORE)
                   1511:                tty_putcode(tty, TTYC_SMUL);
                   1512:        if (changed & GRID_ATTR_BLINK)
                   1513:                tty_putcode(tty, TTYC_BLINK);
                   1514:        if (changed & GRID_ATTR_REVERSE) {
                   1515:                if (tty_term_has(tty->term, TTYC_REV))
                   1516:                        tty_putcode(tty, TTYC_REV);
                   1517:                else if (tty_term_has(tty->term, TTYC_SMSO))
                   1518:                        tty_putcode(tty, TTYC_SMSO);
                   1519:        }
                   1520:        if (changed & GRID_ATTR_HIDDEN)
                   1521:                tty_putcode(tty, TTYC_INVIS);
1.90      nicm     1522:        if ((changed & GRID_ATTR_CHARSET) && tty_use_acs(tty))
1.1       nicm     1523:                tty_putcode(tty, TTYC_SMACS);
                   1524: }
                   1525:
1.207     nicm     1526: static void
1.85      nicm     1527: tty_colours(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1528: {
1.61      nicm     1529:        struct grid_cell        *tc = &tty->cell;
1.204     nicm     1530:        int                      have_ax;
1.61      nicm     1531:
                   1532:        /* No changes? Nothing is necessary. */
1.204     nicm     1533:        if (gc->fg == tc->fg && gc->bg == tc->bg)
1.63      nicm     1534:                return;
1.1       nicm     1535:
1.61      nicm     1536:        /*
                   1537:         * Is either the default colour? This is handled specially because the
                   1538:         * best solution might be to reset both colours to default, in which
                   1539:         * case if only one is default need to fall onward to set the other
                   1540:         * colour.
                   1541:         */
1.204     nicm     1542:        if (gc->fg == 8 || gc->bg == 8) {
1.61      nicm     1543:                /*
                   1544:                 * If don't have AX but do have op, send sgr0 (op can't
                   1545:                 * actually be used because it is sometimes the same as sgr0
                   1546:                 * and sometimes isn't). This resets both colours to default.
                   1547:                 *
                   1548:                 * Otherwise, try to set the default colour only as needed.
                   1549:                 */
1.174     nicm     1550:                have_ax = tty_term_flag(tty->term, TTYC_AX);
1.61      nicm     1551:                if (!have_ax && tty_term_has(tty->term, TTYC_OP))
                   1552:                        tty_reset(tty);
                   1553:                else {
1.204     nicm     1554:                        if (gc->fg == 8 && tc->fg != 8) {
1.61      nicm     1555:                                if (have_ax)
                   1556:                                        tty_puts(tty, "\033[39m");
1.204     nicm     1557:                                else if (tc->fg != 7)
1.61      nicm     1558:                                        tty_putcode1(tty, TTYC_SETAF, 7);
                   1559:                                tc->fg = 8;
                   1560:                        }
1.204     nicm     1561:                        if (gc->bg == 8 && tc->bg != 8) {
1.77      nicm     1562:                                if (have_ax)
1.61      nicm     1563:                                        tty_puts(tty, "\033[49m");
1.204     nicm     1564:                                else if (tc->bg != 0)
1.61      nicm     1565:                                        tty_putcode1(tty, TTYC_SETAB, 0);
                   1566:                                tc->bg = 8;
                   1567:                        }
                   1568:                }
                   1569:        }
1.1       nicm     1570:
1.61      nicm     1571:        /* Set the foreground colour. */
1.204     nicm     1572:        if (gc->fg != 8 && gc->fg != tc->fg)
1.85      nicm     1573:                tty_colours_fg(tty, gc);
1.1       nicm     1574:
1.61      nicm     1575:        /*
                   1576:         * Set the background colour. This must come after the foreground as
                   1577:         * tty_colour_fg() can call tty_reset().
                   1578:         */
1.204     nicm     1579:        if (gc->bg != 8 && gc->bg != tc->bg)
1.73      nicm     1580:                tty_colours_bg(tty, gc);
1.1       nicm     1581: }
                   1582:
                   1583: void
1.85      nicm     1584: tty_check_fg(struct tty *tty, struct grid_cell *gc)
                   1585: {
1.204     nicm     1586:        u_char  r, g, b;
                   1587:        u_int   colours;
1.85      nicm     1588:
1.199     nicm     1589:        /* Is this a 24-bit colour? */
1.204     nicm     1590:        if (gc->fg & COLOUR_FLAG_RGB) {
1.199     nicm     1591:                /* Not a 24-bit terminal? Translate to 256-colour palette. */
                   1592:                if (!tty_term_flag(tty->term, TTYC_TC)) {
1.204     nicm     1593:                        colour_split_rgb(gc->fg, &r, &g, &b);
                   1594:                        gc->fg = colour_find_rgb(r, g, b);
                   1595:                } else
1.200     nicm     1596:                        return;
1.199     nicm     1597:        }
1.175     nicm     1598:        colours = tty_term_number(tty->term, TTYC_COLORS);
                   1599:
1.85      nicm     1600:        /* Is this a 256-colour colour? */
1.204     nicm     1601:        if (gc->fg & COLOUR_FLAG_256) {
1.85      nicm     1602:                /* And not a 256 colour mode? */
1.158     nicm     1603:                if (!(tty->term->flags & TERM_256COLOURS) &&
1.85      nicm     1604:                    !(tty->term_flags & TERM_256COLOURS)) {
                   1605:                        gc->fg = colour_256to16(gc->fg);
                   1606:                        if (gc->fg & 8) {
                   1607:                                gc->fg &= 7;
1.175     nicm     1608:                                if (colours >= 16)
                   1609:                                        gc->fg += 90;
                   1610:                                else
                   1611:                                        gc->attr |= GRID_ATTR_BRIGHT;
1.85      nicm     1612:                        } else
                   1613:                                gc->attr &= ~GRID_ATTR_BRIGHT;
                   1614:                }
                   1615:                return;
                   1616:        }
                   1617:
                   1618:        /* Is this an aixterm colour? */
                   1619:        if (gc->fg >= 90 && gc->fg <= 97 && colours < 16) {
                   1620:                gc->fg -= 90;
                   1621:                gc->attr |= GRID_ATTR_BRIGHT;
                   1622:        }
                   1623: }
                   1624:
                   1625: void
                   1626: tty_check_bg(struct tty *tty, struct grid_cell *gc)
                   1627: {
1.204     nicm     1628:        u_char  r, g, b;
                   1629:        u_int   colours;
1.85      nicm     1630:
1.199     nicm     1631:        /* Is this a 24-bit colour? */
1.204     nicm     1632:        if (gc->bg & COLOUR_FLAG_RGB) {
1.199     nicm     1633:                /* Not a 24-bit terminal? Translate to 256-colour palette. */
                   1634:                if (!tty_term_flag(tty->term, TTYC_TC)) {
1.204     nicm     1635:                        colour_split_rgb(gc->bg, &r, &g, &b);
                   1636:                        gc->bg = colour_find_rgb(r, g, b);
                   1637:                } else
1.200     nicm     1638:                        return;
1.199     nicm     1639:        }
1.175     nicm     1640:        colours = tty_term_number(tty->term, TTYC_COLORS);
                   1641:
1.85      nicm     1642:        /* Is this a 256-colour colour? */
1.204     nicm     1643:        if (gc->bg & COLOUR_FLAG_256) {
1.85      nicm     1644:                /*
                   1645:                 * And not a 256 colour mode? Translate to 16-colour
                   1646:                 * palette. Bold background doesn't exist portably, so just
                   1647:                 * discard the bold bit if set.
                   1648:                 */
1.158     nicm     1649:                if (!(tty->term->flags & TERM_256COLOURS) &&
1.85      nicm     1650:                    !(tty->term_flags & TERM_256COLOURS)) {
                   1651:                        gc->bg = colour_256to16(gc->bg);
1.175     nicm     1652:                        if (gc->bg & 8) {
1.85      nicm     1653:                                gc->bg &= 7;
1.175     nicm     1654:                                if (colours >= 16)
                   1655:                                        gc->fg += 90;
                   1656:                        }
1.85      nicm     1657:                }
                   1658:                return;
                   1659:        }
                   1660:
                   1661:        /* Is this an aixterm colour? */
1.175     nicm     1662:        if (gc->bg >= 90 && gc->bg <= 97 && colours < 16)
1.85      nicm     1663:                gc->bg -= 90;
                   1664: }
                   1665:
1.207     nicm     1666: static void
1.85      nicm     1667: tty_colours_fg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1668: {
1.61      nicm     1669:        struct grid_cell        *tc = &tty->cell;
1.79      nicm     1670:        char                     s[32];
1.1       nicm     1671:
1.204     nicm     1672:        /* Is this a 24-bit or 256-colour colour? */
                   1673:        if (gc->fg & COLOUR_FLAG_RGB ||
                   1674:            gc->fg & COLOUR_FLAG_256) {
                   1675:                if (tty_try_colour(tty, gc->fg, "38") == 0)
1.61      nicm     1676:                        goto save_fg;
1.199     nicm     1677:                /* Should not get here, already converted in tty_check_fg. */
1.85      nicm     1678:                return;
1.1       nicm     1679:        }
                   1680:
1.79      nicm     1681:        /* Is this an aixterm bright colour? */
1.204     nicm     1682:        if (gc->fg >= 90 && gc->fg <= 97) {
                   1683:                xsnprintf(s, sizeof s, "\033[%dm", gc->fg);
1.85      nicm     1684:                tty_puts(tty, s);
                   1685:                goto save_fg;
1.79      nicm     1686:        }
                   1687:
1.61      nicm     1688:        /* Otherwise set the foreground colour. */
1.204     nicm     1689:        tty_putcode1(tty, TTYC_SETAF, gc->fg);
1.61      nicm     1690:
1.77      nicm     1691: save_fg:
1.61      nicm     1692:        /* Save the new values in the terminal current cell. */
1.204     nicm     1693:        tc->fg = gc->fg;
1.1       nicm     1694: }
                   1695:
1.207     nicm     1696: static void
1.73      nicm     1697: tty_colours_bg(struct tty *tty, const struct grid_cell *gc)
1.1       nicm     1698: {
1.61      nicm     1699:        struct grid_cell        *tc = &tty->cell;
1.79      nicm     1700:        char                     s[32];
1.1       nicm     1701:
1.204     nicm     1702:        /* Is this a 24-bit or 256-colour colour? */
                   1703:        if (gc->bg & COLOUR_FLAG_RGB ||
                   1704:            gc->bg & COLOUR_FLAG_256) {
                   1705:                if (tty_try_colour(tty, gc->bg, "48") == 0)
1.61      nicm     1706:                        goto save_bg;
1.199     nicm     1707:                /* Should not get here, already converted in tty_check_bg. */
1.85      nicm     1708:                return;
1.79      nicm     1709:        }
                   1710:
                   1711:        /* Is this an aixterm bright colour? */
1.204     nicm     1712:        if (gc->bg >= 90 && gc->bg <= 97) {
                   1713:                xsnprintf(s, sizeof s, "\033[%dm", gc->bg + 10);
1.175     nicm     1714:                tty_puts(tty, s);
                   1715:                goto save_bg;
1.1       nicm     1716:        }
                   1717:
1.61      nicm     1718:        /* Otherwise set the background colour. */
1.204     nicm     1719:        tty_putcode1(tty, TTYC_SETAB, gc->bg);
1.61      nicm     1720:
                   1721: save_bg:
                   1722:        /* Save the new values in the terminal current cell. */
1.204     nicm     1723:        tc->bg = gc->bg;
1.61      nicm     1724: }
                   1725:
1.207     nicm     1726: static int
1.204     nicm     1727: tty_try_colour(struct tty *tty, int colour, const char *type)
1.61      nicm     1728: {
1.204     nicm     1729:        u_char  r, g, b;
1.61      nicm     1730:        char    s[32];
                   1731:
1.204     nicm     1732:        if (colour & COLOUR_FLAG_256) {
                   1733:                /*
                   1734:                 * If the user has specified -2 to the client, setaf and setab
                   1735:                 * may not work (or they may not want to use them), so send the
                   1736:                 * usual sequence.
                   1737:                 */
                   1738:                if (tty->term_flags & TERM_256COLOURS)
                   1739:                        goto fallback_256;
1.189     nicm     1740:
1.204     nicm     1741:                /*
                   1742:                 * If the terminfo entry has 256 colours and setaf and setab
                   1743:                 * exist, assume that they work correctly.
                   1744:                 */
                   1745:                if (tty->term->flags & TERM_256COLOURS) {
                   1746:                        if (*type == '3') {
                   1747:                                if (!tty_term_has(tty->term, TTYC_SETAF))
                   1748:                                        goto fallback_256;
                   1749:                                tty_putcode1(tty, TTYC_SETAF, colour & 0xff);
                   1750:                        } else {
                   1751:                                if (!tty_term_has(tty->term, TTYC_SETAB))
                   1752:                                        goto fallback_256;
                   1753:                                tty_putcode1(tty, TTYC_SETAB, colour & 0xff);
                   1754:                        }
                   1755:                        return (0);
1.188     nicm     1756:                }
1.204     nicm     1757:                goto fallback_256;
                   1758:        }
                   1759:
                   1760:        if (colour & COLOUR_FLAG_RGB) {
                   1761:                if (!tty_term_flag(tty->term, TTYC_TC))
                   1762:                        return (-1);
                   1763:
                   1764:                colour_split_rgb(colour & 0xffffff, &r, &g, &b);
                   1765:                xsnprintf(s, sizeof s, "\033[%s;2;%hhu;%hhu;%hhum", type,
                   1766:                    r, g, b);
                   1767:                tty_puts(tty, s);
1.165     nicm     1768:                return (0);
                   1769:        }
1.61      nicm     1770:
1.165     nicm     1771:        return (-1);
1.188     nicm     1772:
1.204     nicm     1773: fallback_256:
                   1774:        xsnprintf(s, sizeof s, "\033[%s;5;%dm", type, colour & 0xff);
1.188     nicm     1775:        tty_puts(tty, s);
                   1776:        return (0);
1.176     nicm     1777: }
                   1778:
1.207     nicm     1779: static void
1.176     nicm     1780: tty_default_colours(struct grid_cell *gc, const struct window_pane *wp)
                   1781: {
1.203     nicm     1782:        struct window           *w = wp->window;
                   1783:        struct options          *oo = w->options;
                   1784:        const struct grid_cell  *agc, *pgc, *wgc;
                   1785:
                   1786:        if (w->flags & WINDOW_STYLECHANGED) {
                   1787:                w->flags &= ~WINDOW_STYLECHANGED;
                   1788:                agc = options_get_style(oo, "window-active-style");
                   1789:                memcpy(&w->active_style, agc, sizeof w->active_style);
                   1790:                wgc = options_get_style(oo, "window-style");
                   1791:                memcpy(&w->style, wgc, sizeof w->style);
                   1792:        } else {
                   1793:                agc = &w->active_style;
                   1794:                wgc = &w->style;
                   1795:        }
1.176     nicm     1796:        pgc = &wp->colgc;
                   1797:
1.204     nicm     1798:        if (gc->fg == 8) {
                   1799:                if (pgc->fg != 8)
1.176     nicm     1800:                        gc->fg = pgc->fg;
1.204     nicm     1801:                else if (wp == w->active && agc->fg != 8)
1.176     nicm     1802:                        gc->fg = agc->fg;
1.204     nicm     1803:                else
1.176     nicm     1804:                        gc->fg = wgc->fg;
                   1805:        }
                   1806:
1.204     nicm     1807:        if (gc->bg == 8) {
                   1808:                if (pgc->bg != 8)
1.176     nicm     1809:                        gc->bg = pgc->bg;
1.204     nicm     1810:                else if (wp == w->active && agc->bg != 8)
1.176     nicm     1811:                        gc->bg = agc->bg;
1.204     nicm     1812:                else
1.176     nicm     1813:                        gc->bg = wgc->bg;
                   1814:        }
1.210     nicm     1815: }
                   1816:
                   1817: static void
                   1818: tty_default_attributes(struct tty *tty, const struct window_pane *wp, u_int bg)
                   1819: {
                   1820:        static struct grid_cell gc;
                   1821:
                   1822:        memcpy(&gc, &grid_default_cell, sizeof gc);
                   1823:        gc.bg = bg;
                   1824:        tty_attributes(tty, &gc, wp);
1.1       nicm     1825: }